diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/target | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/target')
52 files changed, 5383 insertions, 7887 deletions
diff --git a/kernel/drivers/target/iscsi/iscsi_target.c b/kernel/drivers/target/iscsi/iscsi_target.c index 0ab6e2efd..72204fbf2 100644 --- a/kernel/drivers/target/iscsi/iscsi_target.c +++ b/kernel/drivers/target/iscsi/iscsi_target.c @@ -21,14 +21,14 @@ #include <linux/crypto.h> #include <linux/completion.h> #include <linux/module.h> +#include <linux/vmalloc.h> #include <linux/idr.h> #include <asm/unaligned.h> -#include <scsi/scsi_device.h> +#include <scsi/scsi_proto.h> #include <scsi/iscsi_proto.h> #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include <target/iscsi/iscsi_target_core.h> #include "iscsi_target_parameters.h" @@ -269,14 +269,14 @@ int iscsit_deaccess_np(struct iscsi_np *np, struct iscsi_portal_group *tpg, } bool iscsit_check_np_match( - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, struct iscsi_np *np, int network_transport) { struct sockaddr_in *sock_in, *sock_in_e; struct sockaddr_in6 *sock_in6, *sock_in6_e; bool ip_match = false; - u16 port; + u16 port, port_e; if (sockaddr->ss_family == AF_INET6) { sock_in6 = (struct sockaddr_in6 *)sockaddr; @@ -288,6 +288,7 @@ bool iscsit_check_np_match( ip_match = true; port = ntohs(sock_in6->sin6_port); + port_e = ntohs(sock_in6_e->sin6_port); } else { sock_in = (struct sockaddr_in *)sockaddr; sock_in_e = (struct sockaddr_in *)&np->np_sockaddr; @@ -296,9 +297,10 @@ bool iscsit_check_np_match( ip_match = true; port = ntohs(sock_in->sin_port); + port_e = ntohs(sock_in_e->sin_port); } - if (ip_match && (np->np_port == port) && + if (ip_match && (port_e == port) && (np->np_network_transport == network_transport)) return true; @@ -309,7 +311,7 @@ bool iscsit_check_np_match( * Called with mutex np_lock held */ static struct iscsi_np *iscsit_get_np( - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, int network_transport) { struct iscsi_np *np; @@ -340,12 +342,9 @@ static struct iscsi_np *iscsit_get_np( } struct iscsi_np *iscsit_add_np( - struct __kernel_sockaddr_storage *sockaddr, - char *ip_str, + struct sockaddr_storage *sockaddr, int network_transport) { - struct sockaddr_in *sock_in; - struct sockaddr_in6 *sock_in6; struct iscsi_np *np; int ret; @@ -368,16 +367,6 @@ struct iscsi_np *iscsit_add_np( } np->np_flags |= NPF_IP_NETWORK; - if (sockaddr->ss_family == AF_INET6) { - sock_in6 = (struct sockaddr_in6 *)sockaddr; - snprintf(np->np_ip, IPV6_ADDRESS_SPACE, "%s", ip_str); - np->np_port = ntohs(sock_in6->sin6_port); - } else { - sock_in = (struct sockaddr_in *)sockaddr; - sprintf(np->np_ip, "%s", ip_str); - np->np_port = ntohs(sock_in->sin_port); - } - np->np_network_transport = network_transport; spin_lock_init(&np->np_thread_lock); init_completion(&np->np_restart_comp); @@ -411,8 +400,8 @@ struct iscsi_np *iscsit_add_np( list_add_tail(&np->np_list, &g_np_list); mutex_unlock(&np_lock); - pr_debug("CORE[0] - Added Network Portal: %s:%hu on %s\n", - np->np_ip, np->np_port, np->np_transport->name); + pr_debug("CORE[0] - Added Network Portal: %pISpc on %s\n", + &np->np_sockaddr, np->np_transport->name); return np; } @@ -481,8 +470,8 @@ int iscsit_del_np(struct iscsi_np *np) list_del(&np->np_list); mutex_unlock(&np_lock); - pr_debug("CORE[0] - Removed Network Portal: %s:%hu on %s\n", - np->np_ip, np->np_port, np->np_transport->name); + pr_debug("CORE[0] - Removed Network Portal: %pISpc on %s\n", + &np->np_sockaddr, np->np_transport->name); iscsit_put_transport(np->np_transport); kfree(np); @@ -715,7 +704,7 @@ static int iscsit_add_reject_from_cmd( */ if (cmd->se_cmd.se_tfo != NULL) { pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n"); - target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd); + target_put_sess_cmd(&cmd->se_cmd); } return -1; } @@ -1001,13 +990,15 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, hdr->cmdsn, be32_to_cpu(hdr->data_length), payload_length, conn->cid); - target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true); + target_get_sess_cmd(&cmd->se_cmd, true); cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd, scsilun_to_int(&hdr->lun)); if (cmd->sense_reason) goto attach_cmd; + /* only used for printks or comparing with ->ref_task_tag */ + cmd->se_cmd.tag = (__force u32)cmd->init_task_tag; cmd->sense_reason = target_setup_cmd_from_cdb(&cmd->se_cmd, hdr->cdb); if (cmd->sense_reason) { if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) { @@ -1067,7 +1058,7 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) return -1; else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) { - target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd); + target_put_sess_cmd(&cmd->se_cmd); return 0; } } @@ -1083,7 +1074,7 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, if (!cmd->sense_reason) return 0; - target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd); + target_put_sess_cmd(&cmd->se_cmd); return 0; } @@ -1114,7 +1105,6 @@ static int iscsit_get_immediate_data(struct iscsi_cmd *cmd, struct iscsi_scsi_req *hdr, bool dump_payload) { - struct iscsi_conn *conn = cmd->conn; int cmdsn_ret = 0, immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION; /* * Special case for Unsupported SAM WRITE Opcodes and ImmediateData=Yes. @@ -1141,7 +1131,7 @@ after_immediate_data: rc = iscsit_dump_data_payload(cmd->conn, cmd->first_burst_len, 1); - target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd); + target_put_sess_cmd(&cmd->se_cmd); return rc; } else if (cmd->unsolicited_data) iscsit_set_unsoliticed_dataout(cmd); @@ -1208,7 +1198,6 @@ static u32 iscsit_do_crypto_hash_sg( u8 *pad_bytes) { u32 data_crc; - u32 i; struct scatterlist *sg; unsigned int page_off; @@ -1217,15 +1206,15 @@ static u32 iscsit_do_crypto_hash_sg( sg = cmd->first_data_sg; page_off = cmd->first_data_sg_off; - i = 0; while (data_length) { - u32 cur_len = min_t(u32, data_length, (sg[i].length - page_off)); + u32 cur_len = min_t(u32, data_length, (sg->length - page_off)); - crypto_hash_update(hash, &sg[i], cur_len); + crypto_hash_update(hash, sg, cur_len); data_length -= cur_len; page_off = 0; - i++; + /* iscsit_map_iovec has already checked for invalid sg pointers */ + sg = sg_next(sg); } if (padding) { @@ -1810,7 +1799,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, conn->sess->se_sess, 0, DMA_NONE, TCM_SIMPLE_TAG, cmd->sense_buffer + 2); - target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true); + target_get_sess_cmd(&cmd->se_cmd, true); sess_ref = true; switch (function) { @@ -1952,7 +1941,7 @@ attach: */ if (sess_ref) { pr_debug("Handle TMR, using sess_ref=true check\n"); - target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd); + target_put_sess_cmd(&cmd->se_cmd); } iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state); @@ -2555,7 +2544,7 @@ static int iscsit_send_conn_drop_async_message( cmd->stat_sn = conn->stat_sn++; hdr->statsn = cpu_to_be32(cmd->stat_sn); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); hdr->async_event = ISCSI_ASYNC_MSG_DROPPING_CONNECTION; hdr->param1 = cpu_to_be16(cmd->logout_cid); hdr->param2 = cpu_to_be16(conn->sess->sess_ops->DefaultTime2Wait); @@ -2627,7 +2616,7 @@ iscsit_build_datain_pdu(struct iscsi_cmd *cmd, struct iscsi_conn *conn, hdr->statsn = cpu_to_be32(0xFFFFFFFF); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); hdr->datasn = cpu_to_be32(datain->data_sn); hdr->offset = cpu_to_be32(datain->offset); @@ -2736,11 +2725,7 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn) cmd->iov_data_count = iov_count; cmd->tx_size = tx_size; - /* sendpage is preferred but can't insert markers */ - if (!conn->conn_ops->IFMarker) - ret = iscsit_fe_sendpage_sg(cmd, conn); - else - ret = iscsit_send_tx_data(cmd, conn, 0); + ret = iscsit_fe_sendpage_sg(cmd, conn); iscsit_unmap_iovec(cmd); @@ -2842,7 +2827,7 @@ iscsit_build_logout_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built Logout Response ITT: 0x%08x StatSN:" " 0x%08x Response: 0x%02x CID: %hu on CID: %hu\n", @@ -2905,7 +2890,7 @@ iscsit_build_nopin_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built NOPIN %s Response ITT: 0x%08x, TTT: 0x%08x," " StatSN: 0x%08x, Length %u\n", (nopout_response) ? @@ -3052,7 +3037,7 @@ static int iscsit_send_r2t( hdr->ttt = cpu_to_be32(r2t->targ_xfer_tag); hdr->statsn = cpu_to_be32(conn->stat_sn); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); hdr->r2tsn = cpu_to_be32(r2t->r2t_sn); hdr->data_offset = cpu_to_be32(r2t->offset); hdr->data_length = cpu_to_be32(r2t->xfer_len); @@ -3205,7 +3190,7 @@ void iscsit_build_rsp_pdu(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built SCSI Response, ITT: 0x%08x, StatSN: 0x%08x," " Response: 0x%02x, SAM Status: 0x%02x, CID: %hu\n", @@ -3324,7 +3309,7 @@ iscsit_build_task_mgt_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built Task Management Response ITT: 0x%08x," " StatSN: 0x%08x, Response: 0x%02x, CID: %hu\n", @@ -3402,6 +3387,7 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, int target_name_printed; unsigned char buf[ISCSI_IQN_LEN+12]; /* iqn + "TargetName=" + \0 */ unsigned char *text_in = cmd->text_in_ptr, *text_ptr = NULL; + bool active; buffer_len = min(conn->conn_ops->MaxRecvDataSegmentLength, SENDTARGETS_BUF_LIMIT); @@ -3455,19 +3441,18 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, } spin_lock(&tpg->tpg_state_lock); - if ((tpg->tpg_state == TPG_STATE_FREE) || - (tpg->tpg_state == TPG_STATE_INACTIVE)) { - spin_unlock(&tpg->tpg_state_lock); - continue; - } + active = (tpg->tpg_state == TPG_STATE_ACTIVE); spin_unlock(&tpg->tpg_state_lock); + if (!active && tpg->tpg_attrib.tpg_enabled_sendtargets) + continue; + spin_lock(&tpg->tpg_np_lock); list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { struct iscsi_np *np = tpg_np->tpg_np; bool inaddr_any = iscsit_check_inaddr_any(np); - char *fmt_str; + struct sockaddr_storage *sockaddr; if (np->np_network_transport != network_transport) continue; @@ -3495,15 +3480,15 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, } } - if (np->np_sockaddr.ss_family == AF_INET6) - fmt_str = "TargetAddress=[%s]:%hu,%hu"; + if (inaddr_any) + sockaddr = &conn->local_sockaddr; else - fmt_str = "TargetAddress=%s:%hu,%hu"; + sockaddr = &np->np_sockaddr; - len = sprintf(buf, fmt_str, - inaddr_any ? conn->local_ip : np->np_ip, - np->np_port, - tpg->tpgt); + len = sprintf(buf, "TargetAddress=" + "%pISpc,%hu", + sockaddr, + tpg->tpgt); len += 1; if ((len + payload_len) > buffer_len) { @@ -3579,7 +3564,7 @@ iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, */ cmd->maxcmdsn_inc = 0; hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built Text Response: ITT: 0x%08x, TTT: 0x%08x, StatSN: 0x%08x," " Length: %u, CID: %hu F: %d C: %d\n", cmd->init_task_tag, @@ -3657,7 +3642,7 @@ iscsit_build_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn, cmd->stat_sn = conn->stat_sn++; hdr->statsn = cpu_to_be32(cmd->stat_sn); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); } EXPORT_SYMBOL(iscsit_build_reject); @@ -4078,17 +4063,9 @@ static int iscsi_target_rx_opcode(struct iscsi_conn *conn, unsigned char *buf) " opcode while ERL=0, closing iSCSI connection.\n"); return -1; } - if (!conn->conn_ops->OFMarker) { - pr_err("Unable to recover from unknown" - " opcode while OFMarker=No, closing iSCSI" - " connection.\n"); - return -1; - } - if (iscsit_recover_from_unknown_opcode(conn) < 0) { - pr_err("Unable to recover from unknown" - " opcode, closing iSCSI connection.\n"); - return -1; - } + pr_err("Unable to recover from unknown opcode while OFMarker=No," + " closing iSCSI connection.\n"); + ret = -1; break; } @@ -4097,6 +4074,17 @@ reject: return iscsit_add_reject(conn, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf); } +static bool iscsi_target_check_conn_state(struct iscsi_conn *conn) +{ + bool ret; + + spin_lock_bh(&conn->state_lock); + ret = (conn->conn_state != TARG_CONN_STATE_LOGGED_IN); + spin_unlock_bh(&conn->state_lock); + + return ret; +} + int iscsi_target_rx_thread(void *arg) { int ret, rc; @@ -4114,7 +4102,7 @@ int iscsi_target_rx_thread(void *arg) * incoming iscsi/tcp socket I/O, and/or failing the connection. */ rc = wait_for_completion_interruptible(&conn->rx_login_comp); - if (rc < 0) + if (rc < 0 || iscsi_target_check_conn_state(conn)) return 0; if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) { diff --git a/kernel/drivers/target/iscsi/iscsi_target.h b/kernel/drivers/target/iscsi/iscsi_target.h index 7d0f9c00d..4cf2c0f2b 100644 --- a/kernel/drivers/target/iscsi/iscsi_target.h +++ b/kernel/drivers/target/iscsi/iscsi_target.h @@ -10,10 +10,10 @@ extern int iscsit_access_np(struct iscsi_np *, struct iscsi_portal_group *); extern void iscsit_login_kref_put(struct kref *); extern int iscsit_deaccess_np(struct iscsi_np *, struct iscsi_portal_group *, struct iscsi_tpg_np *); -extern bool iscsit_check_np_match(struct __kernel_sockaddr_storage *, +extern bool iscsit_check_np_match(struct sockaddr_storage *, struct iscsi_np *, int); -extern struct iscsi_np *iscsit_add_np(struct __kernel_sockaddr_storage *, - char *, int); +extern struct iscsi_np *iscsit_add_np(struct sockaddr_storage *, + int); extern int iscsit_reset_np_thread(struct iscsi_np *, struct iscsi_tpg_np *, struct iscsi_portal_group *, bool); extern int iscsit_del_np(struct iscsi_np *); diff --git a/kernel/drivers/target/iscsi/iscsi_target_configfs.c b/kernel/drivers/target/iscsi/iscsi_target_configfs.c index 469fce44e..b4bfd706a 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_configfs.c +++ b/kernel/drivers/target/iscsi/iscsi_target_configfs.c @@ -23,9 +23,6 @@ #include <linux/inet.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_fabric_configfs.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include <target/iscsi/iscsi_transport.h> #include <target/iscsi/iscsi_target_core.h> @@ -38,20 +35,17 @@ #include "iscsi_target.h" #include <target/iscsi/iscsi_target_stat.h> -struct lio_target_configfs_attribute { - struct configfs_attribute attr; - ssize_t (*show)(void *, char *); - ssize_t (*store)(void *, const char *, size_t); -}; /* Start items for lio_target_portal_cit */ -static ssize_t lio_target_np_show_sctp( - struct se_tpg_np *se_tpg_np, - char *page) +static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item) { - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); + return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np); +} + +static ssize_t lio_target_np_sctp_show(struct config_item *item, char *page) +{ + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_tpg_np *tpg_np_sctp; ssize_t rb; @@ -64,15 +58,12 @@ static ssize_t lio_target_np_show_sctp( return rb; } -static ssize_t lio_target_np_store_sctp( - struct se_tpg_np *se_tpg_np, - const char *page, - size_t count) +static ssize_t lio_target_np_sctp_store(struct config_item *item, + const char *page, size_t count) { + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_np *np; struct iscsi_portal_group *tpg; - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); struct iscsi_tpg_np *tpg_np_sctp = NULL; u32 op; int ret; @@ -100,7 +91,7 @@ static ssize_t lio_target_np_store_sctp( * Use existing np->np_sockaddr for SCTP network portal reference */ tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, - np->np_ip, tpg_np, ISCSI_SCTP_TCP); + tpg_np, ISCSI_SCTP_TCP); if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) goto out; } else { @@ -120,14 +111,9 @@ out: return -EINVAL; } -TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); - -static ssize_t lio_target_np_show_iser( - struct se_tpg_np *se_tpg_np, - char *page) +static ssize_t lio_target_np_iser_show(struct config_item *item, char *page) { - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_tpg_np *tpg_np_iser; ssize_t rb; @@ -140,15 +126,12 @@ static ssize_t lio_target_np_show_iser( return rb; } -static ssize_t lio_target_np_store_iser( - struct se_tpg_np *se_tpg_np, - const char *page, - size_t count) +static ssize_t lio_target_np_iser_store(struct config_item *item, + const char *page, size_t count) { + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_np *np; struct iscsi_portal_group *tpg; - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); struct iscsi_tpg_np *tpg_np_iser = NULL; char *endptr; u32 op; @@ -178,7 +161,7 @@ static ssize_t lio_target_np_store_iser( } tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, - np->np_ip, tpg_np, ISCSI_INFINIBAND); + tpg_np, ISCSI_INFINIBAND); if (IS_ERR(tpg_np_iser)) { rc = PTR_ERR(tpg_np_iser); goto out; @@ -199,11 +182,12 @@ out: return rc; } -TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(lio_target_np_, sctp); +CONFIGFS_ATTR(lio_target_np_, iser); static struct configfs_attribute *lio_target_portal_attrs[] = { - &lio_target_np_sctp.attr, - &lio_target_np_iser.attr, + &lio_target_np_attr_sctp, + &lio_target_np_attr_iser, NULL, }; @@ -221,7 +205,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( struct iscsi_portal_group *tpg; struct iscsi_tpg_np *tpg_np; char *str, *str2, *ip_str, *port_str; - struct __kernel_sockaddr_storage sockaddr; + struct sockaddr_storage sockaddr; struct sockaddr_in *sock_in; struct sockaddr_in6 *sock_in6; unsigned long port; @@ -236,7 +220,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( memset(buf, 0, MAX_PORTAL_LEN + 1); snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); - memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); + memset(&sockaddr, 0, sizeof(struct sockaddr_storage)); str = strstr(buf, "["); if (str) { @@ -249,8 +233,8 @@ static struct se_tpg_np *lio_target_call_addnptotpg( return ERR_PTR(-EINVAL); } str++; /* Skip over leading "[" */ - *str2 = '\0'; /* Terminate the IPv6 address */ - str2++; /* Skip over the "]" */ + *str2 = '\0'; /* Terminate the unbracketed IPv6 address */ + str2++; /* Skip over the \0 */ port_str = strstr(str2, ":"); if (!port_str) { pr_err("Unable to locate \":port\"" @@ -268,7 +252,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( sock_in6 = (struct sockaddr_in6 *)&sockaddr; sock_in6->sin6_family = AF_INET6; sock_in6->sin6_port = htons((unsigned short)port); - ret = in6_pton(str, IPV6_ADDRESS_SPACE, + ret = in6_pton(str, -1, (void *)&sock_in6->sin6_addr.in6_u, -1, &end); if (ret <= 0) { pr_err("in6_pton returned: %d\n", ret); @@ -317,7 +301,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ * */ - tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, + tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, NULL, ISCSI_TCP); if (IS_ERR(tpg_np)) { iscsit_put_tpg(tpg); @@ -345,8 +329,8 @@ static void lio_target_call_delnpfromtpg( se_tpg = &tpg->tpg_se_tpg; pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" - " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), - tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); + " PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), + tpg->tpgt, &tpg_np->tpg_np->np_sockaddr); ret = iscsit_tpg_del_network_portal(tpg, tpg_np); if (ret < 0) @@ -361,22 +345,21 @@ out: /* Start items for lio_target_nacl_attrib_cit */ -#define DEF_NACL_ATTRIB(name) \ -static ssize_t iscsi_nacl_attrib_show_##name( \ - struct se_node_acl *se_nacl, \ - char *page) \ +#define ISCSI_NACL_ATTR(name) \ +static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\ + char *page) \ { \ + struct se_node_acl *se_nacl = attrib_to_nacl(item); \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ \ return sprintf(page, "%u\n", nacl->node_attrib.name); \ } \ \ -static ssize_t iscsi_nacl_attrib_store_##name( \ - struct se_node_acl *se_nacl, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\ + const char *page, size_t count) \ { \ + struct se_node_acl *se_nacl = attrib_to_nacl(item); \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ u32 val; \ @@ -390,59 +373,28 @@ static ssize_t iscsi_nacl_attrib_store_##name( \ return ret; \ \ return count; \ -} +} \ + \ +CONFIGFS_ATTR(iscsi_nacl_attrib_, name) -#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); -/* - * Define iscsi_node_attrib_s_dataout_timeout - */ -DEF_NACL_ATTRIB(dataout_timeout); -NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_dataout_timeout_retries - */ -DEF_NACL_ATTRIB(dataout_timeout_retries); -NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_default_erl - */ -DEF_NACL_ATTRIB(default_erl); -NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_nopin_timeout - */ -DEF_NACL_ATTRIB(nopin_timeout); -NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_nopin_response_timeout - */ -DEF_NACL_ATTRIB(nopin_response_timeout); -NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_random_datain_pdu_offsets - */ -DEF_NACL_ATTRIB(random_datain_pdu_offsets); -NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_random_datain_seq_offsets - */ -DEF_NACL_ATTRIB(random_datain_seq_offsets); -NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_random_r2t_offsets - */ -DEF_NACL_ATTRIB(random_r2t_offsets); -NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); +ISCSI_NACL_ATTR(dataout_timeout); +ISCSI_NACL_ATTR(dataout_timeout_retries); +ISCSI_NACL_ATTR(default_erl); +ISCSI_NACL_ATTR(nopin_timeout); +ISCSI_NACL_ATTR(nopin_response_timeout); +ISCSI_NACL_ATTR(random_datain_pdu_offsets); +ISCSI_NACL_ATTR(random_datain_seq_offsets); +ISCSI_NACL_ATTR(random_r2t_offsets); static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { - &iscsi_nacl_attrib_dataout_timeout.attr, - &iscsi_nacl_attrib_dataout_timeout_retries.attr, - &iscsi_nacl_attrib_default_erl.attr, - &iscsi_nacl_attrib_nopin_timeout.attr, - &iscsi_nacl_attrib_nopin_response_timeout.attr, - &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, - &iscsi_nacl_attrib_random_datain_seq_offsets.attr, - &iscsi_nacl_attrib_random_r2t_offsets.attr, + &iscsi_nacl_attrib_attr_dataout_timeout, + &iscsi_nacl_attrib_attr_dataout_timeout_retries, + &iscsi_nacl_attrib_attr_default_erl, + &iscsi_nacl_attrib_attr_nopin_timeout, + &iscsi_nacl_attrib_attr_nopin_response_timeout, + &iscsi_nacl_attrib_attr_random_datain_pdu_offsets, + &iscsi_nacl_attrib_attr_random_datain_seq_offsets, + &iscsi_nacl_attrib_attr_random_r2t_offsets, NULL, }; @@ -451,7 +403,7 @@ static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { /* Start items for lio_target_nacl_auth_cit */ #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ -static ssize_t __iscsi_##prefix##_show_##name( \ +static ssize_t __iscsi_##prefix##_##name##_show( \ struct iscsi_node_acl *nacl, \ char *page) \ { \ @@ -462,7 +414,7 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ } \ \ -static ssize_t __iscsi_##prefix##_store_##name( \ +static ssize_t __iscsi_##prefix##_##name##_store( \ struct iscsi_node_acl *nacl, \ const char *page, \ size_t count) \ @@ -488,8 +440,35 @@ static ssize_t __iscsi_##prefix##_store_##name( \ return count; \ } +#define DEF_NACL_AUTH_STR(name, flags) \ + __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ +static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ + char *page) \ +{ \ + struct se_node_acl *nacl = auth_to_nacl(item); \ + return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ + struct iscsi_node_acl, se_node_acl), page); \ +} \ +static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ +{ \ + struct se_node_acl *nacl = auth_to_nacl(item); \ + return __iscsi_nacl_auth_##name##_store(container_of(nacl, \ + struct iscsi_node_acl, se_node_acl), page, count); \ +} \ + \ +CONFIGFS_ATTR(iscsi_nacl_auth_, name) + +/* + * One-way authentication userid + */ +DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); +DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); +DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); +DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); + #define __DEF_NACL_AUTH_INT(prefix, name) \ -static ssize_t __iscsi_##prefix##_show_##name( \ +static ssize_t __iscsi_##prefix##_##name##_show( \ struct iscsi_node_acl *nacl, \ char *page) \ { \ @@ -501,69 +480,26 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ } -#define DEF_NACL_AUTH_STR(name, flags) \ - __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ -static ssize_t iscsi_nacl_auth_show_##name( \ - struct se_node_acl *nacl, \ - char *page) \ -{ \ - return __iscsi_nacl_auth_show_##name(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ -} \ -static ssize_t iscsi_nacl_auth_store_##name( \ - struct se_node_acl *nacl, \ - const char *page, \ - size_t count) \ -{ \ - return __iscsi_nacl_auth_store_##name(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page, count); \ -} - #define DEF_NACL_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(nacl_auth, name) \ -static ssize_t iscsi_nacl_auth_show_##name( \ - struct se_node_acl *nacl, \ - char *page) \ +static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ + char *page) \ { \ - return __iscsi_nacl_auth_show_##name(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ -} - -#define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); -#define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); + struct se_node_acl *nacl = auth_to_nacl(item); \ + return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ + struct iscsi_node_acl, se_node_acl), page); \ +} \ + \ +CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name) -/* - * One-way authentication userid - */ -DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); -AUTH_ATTR(userid, S_IRUGO | S_IWUSR); -/* - * One-way authentication password - */ -DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); -AUTH_ATTR(password, S_IRUGO | S_IWUSR); -/* - * Enforce mutual authentication - */ DEF_NACL_AUTH_INT(authenticate_target); -AUTH_ATTR_RO(authenticate_target); -/* - * Mutual authentication userid - */ -DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); -AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); -/* - * Mutual authentication password - */ -DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); -AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { - &iscsi_nacl_auth_userid.attr, - &iscsi_nacl_auth_password.attr, - &iscsi_nacl_auth_authenticate_target.attr, - &iscsi_nacl_auth_userid_mutual.attr, - &iscsi_nacl_auth_password_mutual.attr, + &iscsi_nacl_auth_attr_userid, + &iscsi_nacl_auth_attr_password, + &iscsi_nacl_auth_attr_authenticate_target, + &iscsi_nacl_auth_attr_userid_mutual, + &iscsi_nacl_auth_attr_password_mutual, NULL, }; @@ -571,11 +507,11 @@ static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { /* Start items for lio_target_nacl_param_cit */ -#define DEF_NACL_PARAM(name) \ -static ssize_t iscsi_nacl_param_show_##name( \ - struct se_node_acl *se_nacl, \ - char *page) \ +#define ISCSI_NACL_PARAM(name) \ +static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \ + char *page) \ { \ + struct se_node_acl *se_nacl = param_to_nacl(item); \ struct iscsi_session *sess; \ struct se_session *se_sess; \ ssize_t rb; \ @@ -593,55 +529,34 @@ static ssize_t iscsi_nacl_param_show_##name( \ spin_unlock_bh(&se_nacl->nacl_sess_lock); \ \ return rb; \ -} - -#define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); - -DEF_NACL_PARAM(MaxConnections); -NACL_PARAM_ATTR(MaxConnections); - -DEF_NACL_PARAM(InitialR2T); -NACL_PARAM_ATTR(InitialR2T); - -DEF_NACL_PARAM(ImmediateData); -NACL_PARAM_ATTR(ImmediateData); - -DEF_NACL_PARAM(MaxBurstLength); -NACL_PARAM_ATTR(MaxBurstLength); - -DEF_NACL_PARAM(FirstBurstLength); -NACL_PARAM_ATTR(FirstBurstLength); - -DEF_NACL_PARAM(DefaultTime2Wait); -NACL_PARAM_ATTR(DefaultTime2Wait); - -DEF_NACL_PARAM(DefaultTime2Retain); -NACL_PARAM_ATTR(DefaultTime2Retain); - -DEF_NACL_PARAM(MaxOutstandingR2T); -NACL_PARAM_ATTR(MaxOutstandingR2T); - -DEF_NACL_PARAM(DataPDUInOrder); -NACL_PARAM_ATTR(DataPDUInOrder); - -DEF_NACL_PARAM(DataSequenceInOrder); -NACL_PARAM_ATTR(DataSequenceInOrder); - -DEF_NACL_PARAM(ErrorRecoveryLevel); -NACL_PARAM_ATTR(ErrorRecoveryLevel); +} \ + \ +CONFIGFS_ATTR_RO(iscsi_nacl_param_, name) + +ISCSI_NACL_PARAM(MaxConnections); +ISCSI_NACL_PARAM(InitialR2T); +ISCSI_NACL_PARAM(ImmediateData); +ISCSI_NACL_PARAM(MaxBurstLength); +ISCSI_NACL_PARAM(FirstBurstLength); +ISCSI_NACL_PARAM(DefaultTime2Wait); +ISCSI_NACL_PARAM(DefaultTime2Retain); +ISCSI_NACL_PARAM(MaxOutstandingR2T); +ISCSI_NACL_PARAM(DataPDUInOrder); +ISCSI_NACL_PARAM(DataSequenceInOrder); +ISCSI_NACL_PARAM(ErrorRecoveryLevel); static struct configfs_attribute *lio_target_nacl_param_attrs[] = { - &iscsi_nacl_param_MaxConnections.attr, - &iscsi_nacl_param_InitialR2T.attr, - &iscsi_nacl_param_ImmediateData.attr, - &iscsi_nacl_param_MaxBurstLength.attr, - &iscsi_nacl_param_FirstBurstLength.attr, - &iscsi_nacl_param_DefaultTime2Wait.attr, - &iscsi_nacl_param_DefaultTime2Retain.attr, - &iscsi_nacl_param_MaxOutstandingR2T.attr, - &iscsi_nacl_param_DataPDUInOrder.attr, - &iscsi_nacl_param_DataSequenceInOrder.attr, - &iscsi_nacl_param_ErrorRecoveryLevel.attr, + &iscsi_nacl_param_attr_MaxConnections, + &iscsi_nacl_param_attr_InitialR2T, + &iscsi_nacl_param_attr_ImmediateData, + &iscsi_nacl_param_attr_MaxBurstLength, + &iscsi_nacl_param_attr_FirstBurstLength, + &iscsi_nacl_param_attr_DefaultTime2Wait, + &iscsi_nacl_param_attr_DefaultTime2Retain, + &iscsi_nacl_param_attr_MaxOutstandingR2T, + &iscsi_nacl_param_attr_DataPDUInOrder, + &iscsi_nacl_param_attr_DataSequenceInOrder, + &iscsi_nacl_param_attr_ErrorRecoveryLevel, NULL, }; @@ -649,14 +564,14 @@ static struct configfs_attribute *lio_target_nacl_param_attrs[] = { /* Start items for lio_target_acl_cit */ -static ssize_t lio_target_nacl_show_info( - struct se_node_acl *se_nacl, - char *page) +static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct iscsi_session *sess; struct iscsi_conn *conn; struct se_session *se_sess; ssize_t rb = 0; + u32 max_cmd_sn; spin_lock_bh(&se_nacl->nacl_sess_lock); se_sess = se_nacl->nacl_sess; @@ -704,11 +619,12 @@ static ssize_t lio_target_nacl_show_info( " Values]-----------------------\n"); rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" " : MaxCmdSN : ITT : TTT\n"); + max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn); rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" " 0x%08x 0x%08x\n", sess->cmdsn_window, - (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, - sess->exp_cmd_sn, sess->max_cmd_sn, + (max_cmd_sn - sess->exp_cmd_sn) + 1, + sess->exp_cmd_sn, max_cmd_sn, sess->init_task_tag, sess->targ_xfer_tag); rb += sprintf(page+rb, "----------------------[iSCSI" " Connections]-------------------------\n"); @@ -752,7 +668,7 @@ static ssize_t lio_target_nacl_show_info( break; } - rb += sprintf(page+rb, " Address %s %s", conn->login_ip, + rb += sprintf(page+rb, " Address %pISc %s", &conn->login_sockaddr, (conn->network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); rb += sprintf(page+rb, " StatSN: 0x%08x\n", @@ -765,20 +681,16 @@ static ssize_t lio_target_nacl_show_info( return rb; } -TF_NACL_BASE_ATTR_RO(lio_target, info); - -static ssize_t lio_target_nacl_show_cmdsn_depth( - struct se_node_acl *se_nacl, - char *page) +static ssize_t lio_target_nacl_cmdsn_depth_show(struct config_item *item, + char *page) { - return sprintf(page, "%u\n", se_nacl->queue_depth); + return sprintf(page, "%u\n", acl_to_nacl(item)->queue_depth); } -static ssize_t lio_target_nacl_store_cmdsn_depth( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct se_portal_group *se_tpg = se_nacl->se_tpg; struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); @@ -828,20 +740,15 @@ static ssize_t lio_target_nacl_store_cmdsn_depth( return (!ret) ? count : (ssize_t)ret; } -TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); - -static ssize_t lio_target_nacl_show_tag( - struct se_node_acl *se_nacl, - char *page) +static ssize_t lio_target_nacl_tag_show(struct config_item *item, char *page) { - return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag); + return snprintf(page, PAGE_SIZE, "%s", acl_to_nacl(item)->acl_tag); } -static ssize_t lio_target_nacl_store_tag( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t lio_target_nacl_tag_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); int ret; ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); @@ -851,66 +758,30 @@ static ssize_t lio_target_nacl_store_tag( return count; } -TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR_RO(lio_target_nacl_, info); +CONFIGFS_ATTR(lio_target_nacl_, cmdsn_depth); +CONFIGFS_ATTR(lio_target_nacl_, tag); static struct configfs_attribute *lio_target_initiator_attrs[] = { - &lio_target_nacl_info.attr, - &lio_target_nacl_cmdsn_depth.attr, - &lio_target_nacl_tag.attr, + &lio_target_nacl_attr_info, + &lio_target_nacl_attr_cmdsn_depth, + &lio_target_nacl_attr_tag, NULL, }; -static struct se_node_acl *lio_tpg_alloc_fabric_acl( - struct se_portal_group *se_tpg) +static int lio_target_init_nodeacl(struct se_node_acl *se_nacl, + const char *name) { - struct iscsi_node_acl *acl; - - acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); - if (!acl) { - pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); - return NULL; - } - - return &acl->se_node_acl; -} - -static struct se_node_acl *lio_target_make_nodeacl( - struct se_portal_group *se_tpg, - struct config_group *group, - const char *name) -{ - struct config_group *stats_cg; - struct iscsi_node_acl *acl; - struct se_node_acl *se_nacl_new, *se_nacl; - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); - u32 cmdsn_depth; - - se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); - if (!se_nacl_new) - return ERR_PTR(-ENOMEM); - - cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth; - /* - * se_nacl_new may be released by core_tpg_add_initiator_node_acl() - * when converting a NdoeACL from demo mode -> explict - */ - se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, - name, cmdsn_depth); - if (IS_ERR(se_nacl)) - return se_nacl; - - acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); - stats_cg = &se_nacl->acl_fabric_stat_group; + struct iscsi_node_acl *acl = + container_of(se_nacl, struct iscsi_node_acl, se_node_acl); + struct config_group *stats_cg = &se_nacl->acl_fabric_stat_group; stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, GFP_KERNEL); if (!stats_cg->default_groups) { pr_err("Unable to allocate memory for" " stats_cg->default_groups\n"); - core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); - kfree(acl); - return ERR_PTR(-ENOMEM); + return -ENOMEM; } stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group; @@ -918,13 +789,11 @@ static struct se_node_acl *lio_target_make_nodeacl( config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, "iscsi_sess_stats", &iscsi_stat_sess_cit); - return se_nacl; + return 0; } -static void lio_target_drop_nodeacl( - struct se_node_acl *se_nacl) +static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl) { - struct se_portal_group *se_tpg = se_nacl->se_tpg; struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); struct config_item *df_item; @@ -938,9 +807,6 @@ static void lio_target_drop_nodeacl( config_item_put(df_item); } kfree(stats_cg->default_groups); - - core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); - kfree(acl); } /* End items for lio_target_acl_cit */ @@ -949,10 +815,10 @@ static void lio_target_drop_nodeacl( #define DEF_TPG_ATTRIB(name) \ \ -static ssize_t iscsi_tpg_attrib_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \ + char *page) \ { \ + struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ ssize_t rb; \ @@ -965,11 +831,10 @@ static ssize_t iscsi_tpg_attrib_show_##name( \ return rb; \ } \ \ -static ssize_t iscsi_tpg_attrib_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\ + const char *page, size_t count) \ { \ + struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ u32 val; \ @@ -990,84 +855,37 @@ static ssize_t iscsi_tpg_attrib_store_##name( \ out: \ iscsit_put_tpg(tpg); \ return ret; \ -} - -#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); +} \ +CONFIGFS_ATTR(iscsi_tpg_attrib_, name) -/* - * Define iscsi_tpg_attrib_s_authentication - */ DEF_TPG_ATTRIB(authentication); -TPG_ATTR(authentication, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_login_timeout - */ DEF_TPG_ATTRIB(login_timeout); -TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_netif_timeout - */ DEF_TPG_ATTRIB(netif_timeout); -TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_generate_node_acls - */ DEF_TPG_ATTRIB(generate_node_acls); -TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_default_cmdsn_depth - */ DEF_TPG_ATTRIB(default_cmdsn_depth); -TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); -/* - Define iscsi_tpg_attrib_s_cache_dynamic_acls - */ DEF_TPG_ATTRIB(cache_dynamic_acls); -TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_demo_mode_write_protect - */ DEF_TPG_ATTRIB(demo_mode_write_protect); -TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_prod_mode_write_protect - */ DEF_TPG_ATTRIB(prod_mode_write_protect); -TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_demo_mode_discovery, - */ DEF_TPG_ATTRIB(demo_mode_discovery); -TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_default_erl - */ DEF_TPG_ATTRIB(default_erl); -TPG_ATTR(default_erl, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_t10_pi - */ DEF_TPG_ATTRIB(t10_pi); -TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_fabric_prot_type - */ DEF_TPG_ATTRIB(fabric_prot_type); -TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR); +DEF_TPG_ATTRIB(tpg_enabled_sendtargets); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { - &iscsi_tpg_attrib_authentication.attr, - &iscsi_tpg_attrib_login_timeout.attr, - &iscsi_tpg_attrib_netif_timeout.attr, - &iscsi_tpg_attrib_generate_node_acls.attr, - &iscsi_tpg_attrib_default_cmdsn_depth.attr, - &iscsi_tpg_attrib_cache_dynamic_acls.attr, - &iscsi_tpg_attrib_demo_mode_write_protect.attr, - &iscsi_tpg_attrib_prod_mode_write_protect.attr, - &iscsi_tpg_attrib_demo_mode_discovery.attr, - &iscsi_tpg_attrib_default_erl.attr, - &iscsi_tpg_attrib_t10_pi.attr, - &iscsi_tpg_attrib_fabric_prot_type.attr, + &iscsi_tpg_attrib_attr_authentication, + &iscsi_tpg_attrib_attr_login_timeout, + &iscsi_tpg_attrib_attr_netif_timeout, + &iscsi_tpg_attrib_attr_generate_node_acls, + &iscsi_tpg_attrib_attr_default_cmdsn_depth, + &iscsi_tpg_attrib_attr_cache_dynamic_acls, + &iscsi_tpg_attrib_attr_demo_mode_write_protect, + &iscsi_tpg_attrib_attr_prod_mode_write_protect, + &iscsi_tpg_attrib_attr_demo_mode_discovery, + &iscsi_tpg_attrib_attr_default_erl, + &iscsi_tpg_attrib_attr_t10_pi, + &iscsi_tpg_attrib_attr_fabric_prot_type, + &iscsi_tpg_attrib_attr_tpg_enabled_sendtargets, NULL, }; @@ -1076,9 +894,8 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { /* Start items for lio_target_tpg_auth_cit */ #define __DEF_TPG_AUTH_STR(prefix, name, flags) \ -static ssize_t __iscsi_##prefix##_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ + char *page) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ @@ -1090,10 +907,8 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ } \ \ -static ssize_t __iscsi_##prefix##_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\ + const char *page, size_t count) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ @@ -1117,10 +932,31 @@ static ssize_t __iscsi_##prefix##_store_##name( \ return count; \ } +#define DEF_TPG_AUTH_STR(name, flags) \ + __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ +static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \ + char *page) \ +{ \ + return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \ +} \ + \ +static ssize_t iscsi_tpg_auth_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ +{ \ + return __iscsi_tpg_auth_##name##_store(auth_to_tpg(item), page, count); \ +} \ + \ +CONFIGFS_ATTR(iscsi_tpg_auth_, name); + + +DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); +DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); +DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); +DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); + #define __DEF_TPG_AUTH_INT(prefix, name) \ -static ssize_t __iscsi_##prefix##_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ + char *page) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ @@ -1132,67 +968,23 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ } -#define DEF_TPG_AUTH_STR(name, flags) \ - __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ -static ssize_t iscsi_tpg_auth_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ -{ \ - return __iscsi_tpg_auth_show_##name(se_tpg, page); \ -} \ - \ -static ssize_t iscsi_tpg_auth_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ -{ \ - return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \ -} - #define DEF_TPG_AUTH_INT(name) \ __DEF_TPG_AUTH_INT(tpg_auth, name) \ -static ssize_t iscsi_tpg_auth_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \ + char *page) \ { \ - return __iscsi_tpg_auth_show_##name(se_tpg, page); \ -} - -#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode); -#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name); + return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \ +} \ +CONFIGFS_ATTR_RO(iscsi_tpg_auth_, name); -/* - * * One-way authentication userid - * */ -DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); -TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); -/* - * * One-way authentication password - * */ -DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); -TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR); -/* - * * Enforce mutual authentication - * */ DEF_TPG_AUTH_INT(authenticate_target); -TPG_AUTH_ATTR_RO(authenticate_target); -/* - * * Mutual authentication userid - * */ -DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); -TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); -/* - * * Mutual authentication password - * */ -DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); -TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { - &iscsi_tpg_auth_userid.attr, - &iscsi_tpg_auth_password.attr, - &iscsi_tpg_auth_authenticate_target.attr, - &iscsi_tpg_auth_userid_mutual.attr, - &iscsi_tpg_auth_password_mutual.attr, + &iscsi_tpg_auth_attr_userid, + &iscsi_tpg_auth_attr_password, + &iscsi_tpg_auth_attr_authenticate_target, + &iscsi_tpg_auth_attr_userid_mutual, + &iscsi_tpg_auth_attr_password_mutual, NULL, }; @@ -1201,10 +993,10 @@ static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { /* Start items for lio_target_tpg_param_cit */ #define DEF_TPG_PARAM(name) \ -static ssize_t iscsi_tpg_param_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \ + char *page) \ { \ + struct se_portal_group *se_tpg = param_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ struct iscsi_param *param; \ @@ -1224,11 +1016,10 @@ static ssize_t iscsi_tpg_param_show_##name( \ iscsit_put_tpg(tpg); \ return rb; \ } \ -static ssize_t iscsi_tpg_param_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ { \ + struct se_portal_group *se_tpg = param_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ char *buf; \ @@ -1256,96 +1047,54 @@ static ssize_t iscsi_tpg_param_store_##name( \ out: \ kfree(buf); \ iscsit_put_tpg(tpg); \ - return -EINVAL; \ -} - -#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); + return -EINVAL; \ +} \ +CONFIGFS_ATTR(iscsi_tpg_param_, name) DEF_TPG_PARAM(AuthMethod); -TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(HeaderDigest); -TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DataDigest); -TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxConnections); -TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(TargetAlias); -TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(InitialR2T); -TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(ImmediateData); -TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxRecvDataSegmentLength); -TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxXmitDataSegmentLength); -TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxBurstLength); -TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(FirstBurstLength); -TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DefaultTime2Wait); -TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DefaultTime2Retain); -TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxOutstandingR2T); -TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DataPDUInOrder); -TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DataSequenceInOrder); -TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(ErrorRecoveryLevel); -TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(IFMarker); -TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(OFMarker); -TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(IFMarkInt); -TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(OFMarkInt); -TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_param_attrs[] = { - &iscsi_tpg_param_AuthMethod.attr, - &iscsi_tpg_param_HeaderDigest.attr, - &iscsi_tpg_param_DataDigest.attr, - &iscsi_tpg_param_MaxConnections.attr, - &iscsi_tpg_param_TargetAlias.attr, - &iscsi_tpg_param_InitialR2T.attr, - &iscsi_tpg_param_ImmediateData.attr, - &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, - &iscsi_tpg_param_MaxXmitDataSegmentLength.attr, - &iscsi_tpg_param_MaxBurstLength.attr, - &iscsi_tpg_param_FirstBurstLength.attr, - &iscsi_tpg_param_DefaultTime2Wait.attr, - &iscsi_tpg_param_DefaultTime2Retain.attr, - &iscsi_tpg_param_MaxOutstandingR2T.attr, - &iscsi_tpg_param_DataPDUInOrder.attr, - &iscsi_tpg_param_DataSequenceInOrder.attr, - &iscsi_tpg_param_ErrorRecoveryLevel.attr, - &iscsi_tpg_param_IFMarker.attr, - &iscsi_tpg_param_OFMarker.attr, - &iscsi_tpg_param_IFMarkInt.attr, - &iscsi_tpg_param_OFMarkInt.attr, + &iscsi_tpg_param_attr_AuthMethod, + &iscsi_tpg_param_attr_HeaderDigest, + &iscsi_tpg_param_attr_DataDigest, + &iscsi_tpg_param_attr_MaxConnections, + &iscsi_tpg_param_attr_TargetAlias, + &iscsi_tpg_param_attr_InitialR2T, + &iscsi_tpg_param_attr_ImmediateData, + &iscsi_tpg_param_attr_MaxRecvDataSegmentLength, + &iscsi_tpg_param_attr_MaxXmitDataSegmentLength, + &iscsi_tpg_param_attr_MaxBurstLength, + &iscsi_tpg_param_attr_FirstBurstLength, + &iscsi_tpg_param_attr_DefaultTime2Wait, + &iscsi_tpg_param_attr_DefaultTime2Retain, + &iscsi_tpg_param_attr_MaxOutstandingR2T, + &iscsi_tpg_param_attr_DataPDUInOrder, + &iscsi_tpg_param_attr_DataSequenceInOrder, + &iscsi_tpg_param_attr_ErrorRecoveryLevel, + &iscsi_tpg_param_attr_IFMarker, + &iscsi_tpg_param_attr_OFMarker, + &iscsi_tpg_param_attr_IFMarkInt, + &iscsi_tpg_param_attr_OFMarkInt, NULL, }; @@ -1353,10 +1102,9 @@ static struct configfs_attribute *lio_target_tpg_param_attrs[] = { /* Start items for lio_target_tpg_cit */ -static ssize_t lio_target_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t lio_target_tpg_enable_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); ssize_t len; @@ -1369,11 +1117,10 @@ static ssize_t lio_target_tpg_show_enable( return len; } -static ssize_t lio_target_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t lio_target_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); u32 op; @@ -1411,20 +1158,19 @@ out: return -EINVAL; } -TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); -static ssize_t lio_target_tpg_show_dynamic_sessions( - struct se_portal_group *se_tpg, - char *page) +static ssize_t lio_target_tpg_dynamic_sessions_show(struct config_item *item, + char *page) { - return target_show_dynamic_sessions(se_tpg, page); + return target_show_dynamic_sessions(to_tpg(item), page); } -TF_TPG_BASE_ATTR_RO(lio_target, dynamic_sessions); +CONFIGFS_ATTR(lio_target_tpg_, enable); +CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions); static struct configfs_attribute *lio_target_tpg_attrs[] = { - &lio_target_tpg_enable.attr, - &lio_target_tpg_dynamic_sessions.attr, + &lio_target_tpg_attr_enable, + &lio_target_tpg_attr_dynamic_sessions, NULL, }; @@ -1463,8 +1209,7 @@ static struct se_portal_group *lio_target_tiqn_addtpg( if (!tpg) return NULL; - ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg, - tpg, TRANSPORT_TPG_TYPE_NORMAL); + ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI); if (ret < 0) return NULL; @@ -1500,17 +1245,16 @@ static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) /* Start LIO-Target TIQN struct contig_item lio_target_cit */ -static ssize_t lio_target_wwn_show_attr_lio_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t lio_target_wwn_lio_version_show(struct config_item *item, + char *page) { return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n"); } -TF_WWN_ATTR_RO(lio_target, lio_version); +CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version); static struct configfs_attribute *lio_target_wwn_attrs[] = { - &lio_target_wwn_lio_version.attr, + &lio_target_wwn_attr_lio_version, NULL, }; @@ -1589,77 +1333,47 @@ static void lio_target_call_coredeltiqn( #define DEF_DISC_AUTH_STR(name, flags) \ __DEF_NACL_AUTH_STR(disc, name, flags) \ -static ssize_t iscsi_disc_show_##name( \ - struct target_fabric_configfs *tf, \ - char *page) \ +static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \ { \ - return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ + return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl,\ page); \ } \ -static ssize_t iscsi_disc_store_##name( \ - struct target_fabric_configfs *tf, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_disc_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ { \ - return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ + return __iscsi_disc_##name##_store(&iscsit_global->discovery_acl, \ page, count); \ -} + \ +} \ +CONFIGFS_ATTR(iscsi_disc_, name) + +DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); +DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); +DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); +DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); #define DEF_DISC_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(disc, name) \ -static ssize_t iscsi_disc_show_##name( \ - struct target_fabric_configfs *tf, \ - char *page) \ +static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \ { \ - return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ + return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl, \ page); \ -} - -#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) -#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) +} \ +CONFIGFS_ATTR_RO(iscsi_disc_, name) -/* - * One-way authentication userid - */ -DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); -DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); -/* - * One-way authentication password - */ -DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); -DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); -/* - * Enforce mutual authentication - */ DEF_DISC_AUTH_INT(authenticate_target); -DISC_AUTH_ATTR_RO(authenticate_target); -/* - * Mutual authentication userid - */ -DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); -DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); -/* - * Mutual authentication password - */ -DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); -DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); -/* - * enforce_discovery_auth - */ -static ssize_t iscsi_disc_show_enforce_discovery_auth( - struct target_fabric_configfs *tf, - char *page) + +static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item, + char *page) { struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); } -static ssize_t iscsi_disc_store_enforce_discovery_auth( - struct target_fabric_configfs *tf, - const char *page, - size_t count) +static ssize_t iscsi_disc_enforce_discovery_auth_store(struct config_item *item, + const char *page, size_t count) { struct iscsi_param *param; struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; @@ -1714,15 +1428,15 @@ static ssize_t iscsi_disc_store_enforce_discovery_auth( return count; } -DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(iscsi_disc_, enforce_discovery_auth); static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { - &iscsi_disc_userid.attr, - &iscsi_disc_password.attr, - &iscsi_disc_authenticate_target.attr, - &iscsi_disc_userid_mutual.attr, - &iscsi_disc_password_mutual.attr, - &iscsi_disc_enforce_discovery_auth.attr, + &iscsi_disc_attr_userid, + &iscsi_disc_attr_password, + &iscsi_disc_attr_authenticate_target, + &iscsi_disc_attr_userid_mutual, + &iscsi_disc_attr_password_mutual, + &iscsi_disc_attr_enforce_discovery_auth, NULL, }; @@ -1735,14 +1449,6 @@ static char *iscsi_get_fabric_name(void) return "iSCSI"; } -static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) -{ - struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); - - /* only used for printks or comparism with ->ref_task_tag */ - return (__force u32)cmd->init_task_tag; -} - static int iscsi_get_cmd_state(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); @@ -1832,82 +1538,63 @@ static void lio_aborted_task(struct se_cmd *se_cmd) cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); } -static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) +static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; + return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); +} - return &tpg->tpg_tiqn->tiqn[0]; +static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) +{ + return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn; } static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpgt; + return iscsi_tpg(se_tpg)->tpgt; } static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpg_attrib.default_cmdsn_depth; + return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth; } static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpg_attrib.generate_node_acls; + return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls; } static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpg_attrib.cache_dynamic_acls; + return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls; } static int lio_tpg_check_demo_mode_write_protect( struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpg_attrib.demo_mode_write_protect; + return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect; } static int lio_tpg_check_prod_mode_write_protect( struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpg_attrib.prod_mode_write_protect; + return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect; } static int lio_tpg_check_prot_fabric_only( struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; /* * Only report fabric_prot_type if t10_pi has also been enabled * for incoming ib_isert sessions. */ - if (!tpg->tpg_attrib.t10_pi) + if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi) return 0; - - return tpg->tpg_attrib.fabric_prot_type; -} - -static void lio_tpg_release_fabric_acl( - struct se_portal_group *se_tpg, - struct se_node_acl *se_acl) -{ - struct iscsi_node_acl *acl = container_of(se_acl, - struct iscsi_node_acl, se_node_acl); - kfree(acl); + return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type; } /* - * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. + * Called with spin_lock_irq(struct se_portal_group->session_lock) held + * or not held. * * Also, this function calls iscsit_inc_session_usage_count() on the * struct iscsi_session in question. @@ -1915,19 +1602,32 @@ static void lio_tpg_release_fabric_acl( static int lio_tpg_shutdown_session(struct se_session *se_sess) { struct iscsi_session *sess = se_sess->fabric_sess_ptr; + struct se_portal_group *se_tpg = se_sess->se_tpg; + bool local_lock = false; + + if (!spin_is_locked(&se_tpg->session_lock)) { + spin_lock_irq(&se_tpg->session_lock); + local_lock = true; + } spin_lock(&sess->conn_lock); if (atomic_read(&sess->session_fall_back_to_erl0) || atomic_read(&sess->session_logout) || (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { spin_unlock(&sess->conn_lock); + if (local_lock) + spin_unlock_irq(&sess->conn_lock); return 0; } atomic_set(&sess->session_reinstatement, 1); spin_unlock(&sess->conn_lock); iscsit_stop_time2retain_timer(sess); + spin_unlock_irq(&se_tpg->session_lock); + iscsit_stop_session(sess, 1, 1); + if (!local_lock) + spin_lock_irq(&se_tpg->session_lock); return 1; } @@ -1948,9 +1648,7 @@ static void lio_tpg_close_session(struct se_session *se_sess) static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) { - struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->tpg_tiqn->tiqn_index; + return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index; } static void lio_set_default_node_attributes(struct se_node_acl *se_acl) @@ -1967,7 +1665,7 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl) static int lio_check_stop_free(struct se_cmd *se_cmd) { - return target_put_sess_cmd(se_cmd->se_sess, se_cmd); + return target_put_sess_cmd(se_cmd); } static void lio_release_cmd(struct se_cmd *se_cmd) @@ -1981,14 +1679,11 @@ static void lio_release_cmd(struct se_cmd *se_cmd) const struct target_core_fabric_ops iscsi_ops = { .module = THIS_MODULE, .name = "iscsi", + .node_acl_size = sizeof(struct iscsi_node_acl), .get_fabric_name = iscsi_get_fabric_name, - .get_fabric_proto_ident = iscsi_get_fabric_proto_ident, .tpg_get_wwn = lio_tpg_get_endpoint_wwn, .tpg_get_tag = lio_tpg_get_tag, .tpg_get_default_depth = lio_tpg_get_default_depth, - .tpg_get_pr_transport_id = iscsi_get_pr_transport_id, - .tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len, - .tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id, .tpg_check_demo_mode = lio_tpg_check_demo_mode, .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache, .tpg_check_demo_mode_write_protect = @@ -1996,8 +1691,6 @@ const struct target_core_fabric_ops iscsi_ops = { .tpg_check_prod_mode_write_protect = lio_tpg_check_prod_mode_write_protect, .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only, - .tpg_alloc_fabric_acl = lio_tpg_alloc_fabric_acl, - .tpg_release_fabric_acl = lio_tpg_release_fabric_acl, .tpg_get_inst_index = lio_tpg_get_inst_index, .check_stop_free = lio_check_stop_free, .release_cmd = lio_release_cmd, @@ -2008,7 +1701,6 @@ const struct target_core_fabric_ops iscsi_ops = { .write_pending = lio_write_pending, .write_pending_status = lio_write_pending_status, .set_default_node_attributes = lio_set_default_node_attributes, - .get_task_tag = iscsi_get_task_tag, .get_cmd_state = iscsi_get_cmd_state, .queue_data_in = lio_queue_data_in, .queue_status = lio_queue_status, @@ -2020,8 +1712,8 @@ const struct target_core_fabric_ops iscsi_ops = { .fabric_drop_tpg = lio_target_tiqn_deltpg, .fabric_make_np = lio_target_call_addnptotpg, .fabric_drop_np = lio_target_call_delnpfromtpg, - .fabric_make_nodeacl = lio_target_make_nodeacl, - .fabric_drop_nodeacl = lio_target_drop_nodeacl, + .fabric_init_nodeacl = lio_target_init_nodeacl, + .fabric_cleanup_nodeacl = lio_target_cleanup_nodeacl, .tfc_discovery_attrs = lio_target_discovery_auth_attrs, .tfc_wwn_attrs = lio_target_wwn_attrs, diff --git a/kernel/drivers/target/iscsi/iscsi_target_device.c b/kernel/drivers/target/iscsi/iscsi_target_device.c index 34c3cd1b0..0382fa24b 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_device.c +++ b/kernel/drivers/target/iscsi/iscsi_target_device.c @@ -17,7 +17,6 @@ * GNU General Public License for more details. ******************************************************************************/ -#include <scsi/scsi_device.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> @@ -48,19 +47,19 @@ void iscsit_determine_maxcmdsn(struct iscsi_session *sess) * core_set_queue_depth_for_node(). */ sess->cmdsn_window = se_nacl->queue_depth; - sess->max_cmd_sn = (sess->max_cmd_sn + se_nacl->queue_depth) - 1; + atomic_add(se_nacl->queue_depth - 1, &sess->max_cmd_sn); } void iscsit_increment_maxcmdsn(struct iscsi_cmd *cmd, struct iscsi_session *sess) { + u32 max_cmd_sn; + if (cmd->immediate_cmd || cmd->maxcmdsn_inc) return; cmd->maxcmdsn_inc = 1; - mutex_lock(&sess->cmdsn_mutex); - sess->max_cmd_sn += 1; - pr_debug("Updated MaxCmdSN to 0x%08x\n", sess->max_cmd_sn); - mutex_unlock(&sess->cmdsn_mutex); + max_cmd_sn = atomic_inc_return(&sess->max_cmd_sn); + pr_debug("Updated MaxCmdSN to 0x%08x\n", max_cmd_sn); } EXPORT_SYMBOL(iscsit_increment_maxcmdsn); diff --git a/kernel/drivers/target/iscsi/iscsi_target_erl0.c b/kernel/drivers/target/iscsi/iscsi_target_erl0.c index 959a14c9d..210f6e483 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_erl0.c +++ b/kernel/drivers/target/iscsi/iscsi_target_erl0.c @@ -956,56 +956,3 @@ void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn) iscsit_handle_connection_cleanup(conn); } - -/* - * This is the simple function that makes the magic of - * sync and steering happen in the follow paradoxical order: - * - * 0) Receive conn->of_marker (bytes left until next OFMarker) - * bytes into an offload buffer. When we pass the exact number - * of bytes in conn->of_marker, iscsit_dump_data_payload() and hence - * rx_data() will automatically receive the identical u32 marker - * values and store it in conn->of_marker_offset; - * 1) Now conn->of_marker_offset will contain the offset to the start - * of the next iSCSI PDU. Dump these remaining bytes into another - * offload buffer. - * 2) We are done! - * Next byte in the TCP stream will contain the next iSCSI PDU! - * Cool Huh?! - */ -int iscsit_recover_from_unknown_opcode(struct iscsi_conn *conn) -{ - /* - * Make sure the remaining bytes to next maker is a sane value. - */ - if (conn->of_marker > (conn->conn_ops->OFMarkInt * 4)) { - pr_err("Remaining bytes to OFMarker: %u exceeds" - " OFMarkInt bytes: %u.\n", conn->of_marker, - conn->conn_ops->OFMarkInt * 4); - return -1; - } - - pr_debug("Advancing %u bytes in TCP stream to get to the" - " next OFMarker.\n", conn->of_marker); - - if (iscsit_dump_data_payload(conn, conn->of_marker, 0) < 0) - return -1; - - /* - * Make sure the offset marker we retrived is a valid value. - */ - if (conn->of_marker_offset > (ISCSI_HDR_LEN + (ISCSI_CRC_LEN * 2) + - conn->conn_ops->MaxRecvDataSegmentLength)) { - pr_err("OfMarker offset value: %u exceeds limit.\n", - conn->of_marker_offset); - return -1; - } - - pr_debug("Discarding %u bytes of TCP stream to get to the" - " next iSCSI Opcode.\n", conn->of_marker_offset); - - if (iscsit_dump_data_payload(conn, conn->of_marker_offset, 0) < 0) - return -1; - - return 0; -} diff --git a/kernel/drivers/target/iscsi/iscsi_target_erl0.h b/kernel/drivers/target/iscsi/iscsi_target_erl0.h index 21acc9a06..a9e2f9497 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_erl0.h +++ b/kernel/drivers/target/iscsi/iscsi_target_erl0.h @@ -10,6 +10,5 @@ extern void iscsit_connection_reinstatement_rcfr(struct iscsi_conn *); extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int); extern void iscsit_fall_back_to_erl0(struct iscsi_session *); extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *); -extern int iscsit_recover_from_unknown_opcode(struct iscsi_conn *); #endif /*** ISCSI_TARGET_ERL0_H ***/ diff --git a/kernel/drivers/target/iscsi/iscsi_target_login.c b/kernel/drivers/target/iscsi/iscsi_target_login.c index c3bccaddb..96e78c823 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_login.c +++ b/kernel/drivers/target/iscsi/iscsi_target_login.c @@ -331,7 +331,7 @@ static int iscsi_login_zero_tsih_s1( * The FFP CmdSN window values will be allocated from the TPG's * Initiator Node's ACL once the login has been successfully completed. */ - sess->max_cmd_sn = be32_to_cpu(pdu->cmdsn); + atomic_set(&sess->max_cmd_sn, be32_to_cpu(pdu->cmdsn)); sess->sess_ops = kzalloc(sizeof(struct iscsi_sess_ops), GFP_KERNEL); if (!sess->sess_ops) { @@ -411,8 +411,6 @@ static int iscsi_login_zero_tsih_s2( if (iscsi_change_param_sprintf(conn, "ErrorRecoveryLevel=%d", na->default_erl)) return -1; - if (iscsi_login_disable_FIM_keys(conn->param_list, conn) < 0) - return -1; /* * Set RDMAExtensions=Yes by default for iSER enabled network portals */ @@ -478,59 +476,6 @@ check_prot: return 0; } -/* - * Remove PSTATE_NEGOTIATE for the four FIM related keys. - * The Initiator node will be able to enable FIM by proposing them itself. - */ -int iscsi_login_disable_FIM_keys( - struct iscsi_param_list *param_list, - struct iscsi_conn *conn) -{ - struct iscsi_param *param; - - param = iscsi_find_param_from_key("OFMarker", param_list); - if (!param) { - pr_err("iscsi_find_param_from_key() for" - " OFMarker failed\n"); - iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, - ISCSI_LOGIN_STATUS_NO_RESOURCES); - return -1; - } - param->state &= ~PSTATE_NEGOTIATE; - - param = iscsi_find_param_from_key("OFMarkInt", param_list); - if (!param) { - pr_err("iscsi_find_param_from_key() for" - " IFMarker failed\n"); - iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, - ISCSI_LOGIN_STATUS_NO_RESOURCES); - return -1; - } - param->state &= ~PSTATE_NEGOTIATE; - - param = iscsi_find_param_from_key("IFMarker", param_list); - if (!param) { - pr_err("iscsi_find_param_from_key() for" - " IFMarker failed\n"); - iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, - ISCSI_LOGIN_STATUS_NO_RESOURCES); - return -1; - } - param->state &= ~PSTATE_NEGOTIATE; - - param = iscsi_find_param_from_key("IFMarkInt", param_list); - if (!param) { - pr_err("iscsi_find_param_from_key() for" - " IFMarker failed\n"); - iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, - ISCSI_LOGIN_STATUS_NO_RESOURCES); - return -1; - } - param->state &= ~PSTATE_NEGOTIATE; - - return 0; -} - static int iscsi_login_non_zero_tsih_s1( struct iscsi_conn *conn, unsigned char *buf) @@ -617,7 +562,7 @@ static int iscsi_login_non_zero_tsih_s2( if (iscsi_change_param_sprintf(conn, "TargetPortalGroupTag=%hu", sess->tpg->tpgt)) return -1; - return iscsi_login_disable_FIM_keys(conn->param_list, conn); + return 0; } int iscsi_login_post_auth_non_zero_tsih( @@ -766,7 +711,6 @@ void iscsi_post_login_handler( conn->conn_state = TARG_CONN_STATE_LOGGED_IN; iscsi_set_connection_parameters(conn->conn_ops, conn->param_list); - iscsit_set_sync_and_steering_values(conn); /* * SCSI Initiator -> SCSI Target Port Mapping */ @@ -785,9 +729,9 @@ void iscsi_post_login_handler( stop_timer = 1; } - pr_debug("iSCSI Login successful on CID: %hu from %s to" - " %s:%hu,%hu\n", conn->cid, conn->login_ip, - conn->local_ip, conn->local_port, tpg->tpgt); + pr_debug("iSCSI Login successful on CID: %hu from %pISpc to" + " %pISpc,%hu\n", conn->cid, &conn->login_sockaddr, + &conn->local_sockaddr, tpg->tpgt); list_add_tail(&conn->conn_list, &sess->sess_conn_list); atomic_inc(&sess->nconn); @@ -832,8 +776,8 @@ void iscsi_post_login_handler( pr_debug("Moving to TARG_SESS_STATE_LOGGED_IN.\n"); sess->session_state = TARG_SESS_STATE_LOGGED_IN; - pr_debug("iSCSI Login successful on CID: %hu from %s to %s:%hu,%hu\n", - conn->cid, conn->login_ip, conn->local_ip, conn->local_port, + pr_debug("iSCSI Login successful on CID: %hu from %pISpc to %pISpc,%hu\n", + conn->cid, &conn->login_sockaddr, &conn->local_sockaddr, tpg->tpgt); spin_lock_bh(&sess->conn_lock); @@ -879,8 +823,8 @@ static void iscsi_handle_login_thread_timeout(unsigned long data) struct iscsi_np *np = (struct iscsi_np *) data; spin_lock_bh(&np->np_thread_lock); - pr_err("iSCSI Login timeout on Network Portal %s:%hu\n", - np->np_ip, np->np_port); + pr_err("iSCSI Login timeout on Network Portal %pISpc\n", + &np->np_sockaddr); if (np->np_login_timer_flags & ISCSI_TF_STOP) { spin_unlock_bh(&np->np_thread_lock); @@ -933,7 +877,7 @@ static void iscsi_stop_login_thread_timer(struct iscsi_np *np) int iscsit_setup_np( struct iscsi_np *np, - struct __kernel_sockaddr_storage *sockaddr) + struct sockaddr_storage *sockaddr) { struct socket *sock = NULL; int backlog = ISCSIT_TCP_BACKLOG, ret, opt = 0, len; @@ -972,7 +916,7 @@ int iscsit_setup_np( * in iscsi_target_configfs.c code.. */ memcpy(&np->np_sockaddr, sockaddr, - sizeof(struct __kernel_sockaddr_storage)); + sizeof(struct sockaddr_storage)); if (sockaddr->ss_family == AF_INET6) len = sizeof(struct sockaddr_in6); @@ -1031,7 +975,7 @@ fail: int iscsi_target_setup_login_socket( struct iscsi_np *np, - struct __kernel_sockaddr_storage *sockaddr) + struct sockaddr_storage *sockaddr) { struct iscsit_transport *t; int rc; @@ -1071,44 +1015,42 @@ int iscsit_accept_np(struct iscsi_np *np, struct iscsi_conn *conn) rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in6, &err, 1); if (!rc) { - if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) - snprintf(conn->login_ip, sizeof(conn->login_ip), "[%pI6c]", - &sock_in6.sin6_addr.in6_u); - else - snprintf(conn->login_ip, sizeof(conn->login_ip), "%pI4", - &sock_in6.sin6_addr.s6_addr32[3]); - conn->login_port = ntohs(sock_in6.sin6_port); + if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) { + memcpy(&conn->login_sockaddr, &sock_in6, sizeof(sock_in6)); + } else { + /* Pretend to be an ipv4 socket */ + sock_in.sin_family = AF_INET; + sock_in.sin_port = sock_in6.sin6_port; + memcpy(&sock_in.sin_addr, &sock_in6.sin6_addr.s6_addr32[3], 4); + memcpy(&conn->login_sockaddr, &sock_in, sizeof(sock_in)); + } } rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in6, &err, 0); if (!rc) { - if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) - snprintf(conn->local_ip, sizeof(conn->local_ip), "[%pI6c]", - &sock_in6.sin6_addr.in6_u); - else - snprintf(conn->local_ip, sizeof(conn->local_ip), "%pI4", - &sock_in6.sin6_addr.s6_addr32[3]); - conn->local_port = ntohs(sock_in6.sin6_port); + if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) { + memcpy(&conn->local_sockaddr, &sock_in6, sizeof(sock_in6)); + } else { + /* Pretend to be an ipv4 socket */ + sock_in.sin_family = AF_INET; + sock_in.sin_port = sock_in6.sin6_port; + memcpy(&sock_in.sin_addr, &sock_in6.sin6_addr.s6_addr32[3], 4); + memcpy(&conn->local_sockaddr, &sock_in, sizeof(sock_in)); + } } } else { memset(&sock_in, 0, sizeof(struct sockaddr_in)); rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in, &err, 1); - if (!rc) { - sprintf(conn->login_ip, "%pI4", - &sock_in.sin_addr.s_addr); - conn->login_port = ntohs(sock_in.sin_port); - } + if (!rc) + memcpy(&conn->login_sockaddr, &sock_in, sizeof(sock_in)); rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in, &err, 0); - if (!rc) { - sprintf(conn->local_ip, "%pI4", - &sock_in.sin_addr.s_addr); - conn->local_port = ntohs(sock_in.sin_port); - } + if (!rc) + memcpy(&conn->local_sockaddr, &sock_in, sizeof(sock_in)); } return 0; @@ -1358,8 +1300,8 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) spin_lock_bh(&np->np_thread_lock); if (np->np_thread_state != ISCSI_NP_THREAD_ACTIVE) { spin_unlock_bh(&np->np_thread_lock); - pr_err("iSCSI Network Portal on %s:%hu currently not" - " active.\n", np->np_ip, np->np_port); + pr_err("iSCSI Network Portal on %pISpc currently not" + " active.\n", &np->np_sockaddr); iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_SVC_UNAVAILABLE); goto new_sess_out; @@ -1368,9 +1310,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) conn->network_transport = np->np_network_transport; - pr_debug("Received iSCSI login request from %s on %s Network" - " Portal %s:%hu\n", conn->login_ip, np->np_transport->name, - conn->local_ip, conn->local_port); + pr_debug("Received iSCSI login request from %pISpc on %s Network" + " Portal %pISpc\n", &conn->login_sockaddr, np->np_transport->name, + &conn->local_sockaddr); pr_debug("Moving to TARG_CONN_STATE_IN_LOGIN.\n"); conn->conn_state = TARG_CONN_STATE_IN_LOGIN; diff --git a/kernel/drivers/target/iscsi/iscsi_target_login.h b/kernel/drivers/target/iscsi/iscsi_target_login.h index 55cbf4533..b597aa2c6 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_login.h +++ b/kernel/drivers/target/iscsi/iscsi_target_login.h @@ -5,9 +5,9 @@ extern int iscsi_login_setup_crypto(struct iscsi_conn *); extern int iscsi_check_for_session_reinstatement(struct iscsi_conn *); extern int iscsi_login_post_auth_non_zero_tsih(struct iscsi_conn *, u16, u32); extern int iscsit_setup_np(struct iscsi_np *, - struct __kernel_sockaddr_storage *); + struct sockaddr_storage *); extern int iscsi_target_setup_login_socket(struct iscsi_np *, - struct __kernel_sockaddr_storage *); + struct sockaddr_storage *); extern int iscsit_accept_np(struct iscsi_np *, struct iscsi_conn *); extern int iscsit_get_login_rx(struct iscsi_conn *, struct iscsi_login *); extern int iscsit_put_login_tx(struct iscsi_conn *, struct iscsi_login *, u32); @@ -17,6 +17,5 @@ extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8) extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *, bool, bool); extern int iscsi_target_login_thread(void *); -extern int iscsi_login_disable_FIM_keys(struct iscsi_param_list *, struct iscsi_conn *); #endif /*** ISCSI_TARGET_LOGIN_H ***/ diff --git a/kernel/drivers/target/iscsi/iscsi_target_nego.c b/kernel/drivers/target/iscsi/iscsi_target_nego.c index f9cde9141..9fc9117d0 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_nego.c +++ b/kernel/drivers/target/iscsi/iscsi_target_nego.c @@ -341,7 +341,6 @@ static int iscsi_target_check_first_request( static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_login *login) { u32 padding = 0; - struct iscsi_session *sess = conn->sess; struct iscsi_login_rsp *login_rsp; login_rsp = (struct iscsi_login_rsp *) login->rsp; @@ -353,7 +352,7 @@ static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_log login_rsp->itt = login->init_task_tag; login_rsp->statsn = cpu_to_be32(conn->stat_sn++); login_rsp->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - login_rsp->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + login_rsp->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Sending Login Response, Flags: 0x%02x, ITT: 0x%08x," " ExpCmdSN; 0x%08x, MaxCmdSN: 0x%08x, StatSN: 0x%08x, Length:" @@ -382,10 +381,6 @@ static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_log goto err; login->rsp_length = 0; - mutex_lock(&sess->cmdsn_mutex); - login_rsp->exp_cmdsn = cpu_to_be32(sess->exp_cmd_sn); - login_rsp->max_cmdsn = cpu_to_be32(sess->max_cmd_sn); - mutex_unlock(&sess->cmdsn_mutex); return 0; @@ -393,6 +388,7 @@ err: if (login->login_complete) { if (conn->rx_thread && conn->rx_thread_active) { send_sig(SIGINT, conn->rx_thread, 1); + complete(&conn->rx_login_comp); kthread_stop(conn->rx_thread); } if (conn->tx_thread && conn->tx_thread_active) { diff --git a/kernel/drivers/target/iscsi/iscsi_target_parameters.c b/kernel/drivers/target/iscsi/iscsi_target_parameters.c index d4f9e9645..2cbea2af7 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_parameters.c +++ b/kernel/drivers/target/iscsi/iscsi_target_parameters.c @@ -34,13 +34,6 @@ int iscsi_login_rx_data( iov.iov_len = length; iov.iov_base = buf; - /* - * Initial Marker-less Interval. - * Add the values regardless of IFMarker/OFMarker, considering - * it may not be negoitated yet. - */ - conn->of_marker += length; - rx_got = rx_data(conn, &iov, 1, length); if (rx_got != length) { pr_err("rx_data returned %d, expecting %d.\n", @@ -72,13 +65,6 @@ int iscsi_login_tx_data( iov_cnt++; } - /* - * Initial Marker-less Interval. - * Add the values regardless of IFMarker/OFMarker, considering - * it may not be negoitated yet. - */ - conn->if_marker += length; - tx_sent = tx_data(conn, &iov[0], iov_cnt, length); if (tx_sent != length) { pr_err("tx_data returned %d, expecting %d.\n", @@ -97,12 +83,6 @@ void iscsi_dump_conn_ops(struct iscsi_conn_ops *conn_ops) "CRC32C" : "None"); pr_debug("MaxRecvDataSegmentLength: %u\n", conn_ops->MaxRecvDataSegmentLength); - pr_debug("OFMarker: %s\n", (conn_ops->OFMarker) ? "Yes" : "No"); - pr_debug("IFMarker: %s\n", (conn_ops->IFMarker) ? "Yes" : "No"); - if (conn_ops->OFMarker) - pr_debug("OFMarkInt: %u\n", conn_ops->OFMarkInt); - if (conn_ops->IFMarker) - pr_debug("IFMarkInt: %u\n", conn_ops->IFMarkInt); } void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops) @@ -194,10 +174,6 @@ static struct iscsi_param *iscsi_set_default_param(struct iscsi_param_list *para case TYPERANGE_DIGEST: param->type = TYPE_VALUE_LIST | TYPE_STRING; break; - case TYPERANGE_MARKINT: - param->type = TYPE_NUMBER_RANGE; - param->type_range |= TYPERANGE_1_TO_65535; - break; case TYPERANGE_ISCSINAME: case TYPERANGE_SESSIONTYPE: case TYPERANGE_TARGETADDRESS: @@ -232,7 +208,7 @@ int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr) if (!pl) { pr_err("Unable to allocate memory for" " struct iscsi_param_list.\n"); - return -1 ; + return -ENOMEM; } INIT_LIST_HEAD(&pl->param_list); INIT_LIST_HEAD(&pl->extra_response_list); @@ -422,15 +398,16 @@ int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr) param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT, PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, - TYPERANGE_MARKINT, USE_INITIAL_ONLY); + TYPERANGE_UTF8, USE_INITIAL_ONLY); if (!param) goto out; param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT, PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, - TYPERANGE_MARKINT, USE_INITIAL_ONLY); + TYPERANGE_UTF8, USE_INITIAL_ONLY); if (!param) goto out; + /* * Extra parameters for ISER from RFC-5046 */ @@ -520,13 +497,13 @@ int iscsi_set_keys_to_negotiate( } else if (!strcmp(param->name, SESSIONTYPE)) { SET_PSTATE_NEGOTIATE(param); } else if (!strcmp(param->name, IFMARKER)) { - SET_PSTATE_NEGOTIATE(param); + SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, OFMARKER)) { - SET_PSTATE_NEGOTIATE(param); + SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, IFMARKINT)) { - SET_PSTATE_NEGOTIATE(param); + SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, OFMARKINT)) { - SET_PSTATE_NEGOTIATE(param); + SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, RDMAEXTENSIONS)) { if (iser) SET_PSTATE_NEGOTIATE(param); @@ -601,7 +578,7 @@ int iscsi_copy_param_list( param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL); if (!param_list) { pr_err("Unable to allocate memory for struct iscsi_param_list.\n"); - return -1; + return -ENOMEM; } INIT_LIST_HEAD(¶m_list->param_list); INIT_LIST_HEAD(¶m_list->extra_response_list); @@ -652,7 +629,7 @@ int iscsi_copy_param_list( err_out: iscsi_release_param_list(param_list); - return -1; + return -ENOMEM; } static void iscsi_release_extra_responses(struct iscsi_param_list *param_list) @@ -752,7 +729,7 @@ static int iscsi_add_notunderstood_response( if (!extra_response) { pr_err("Unable to allocate memory for" " struct iscsi_extra_response.\n"); - return -1; + return -ENOMEM; } INIT_LIST_HEAD(&extra_response->er_list); @@ -906,91 +883,6 @@ static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_pt return 0; } -static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value) -{ - char *left_val_ptr = NULL, *right_val_ptr = NULL; - char *tilde_ptr = NULL; - u32 left_val, right_val, local_left_val; - - if (strcmp(param->name, IFMARKINT) && - strcmp(param->name, OFMARKINT)) { - pr_err("Only parameters \"%s\" or \"%s\" may contain a" - " numerical range value.\n", IFMARKINT, OFMARKINT); - return -1; - } - - if (IS_PSTATE_PROPOSER(param)) - return 0; - - tilde_ptr = strchr(value, '~'); - if (!tilde_ptr) { - pr_err("Unable to locate numerical range indicator" - " \"~\" for \"%s\".\n", param->name); - return -1; - } - *tilde_ptr = '\0'; - - left_val_ptr = value; - right_val_ptr = value + strlen(left_val_ptr) + 1; - - if (iscsi_check_numerical_value(param, left_val_ptr) < 0) - return -1; - if (iscsi_check_numerical_value(param, right_val_ptr) < 0) - return -1; - - left_val = simple_strtoul(left_val_ptr, NULL, 0); - right_val = simple_strtoul(right_val_ptr, NULL, 0); - *tilde_ptr = '~'; - - if (right_val < left_val) { - pr_err("Numerical range for parameter \"%s\" contains" - " a right value which is less than the left.\n", - param->name); - return -1; - } - - /* - * For now, enforce reasonable defaults for [I,O]FMarkInt. - */ - tilde_ptr = strchr(param->value, '~'); - if (!tilde_ptr) { - pr_err("Unable to locate numerical range indicator" - " \"~\" for \"%s\".\n", param->name); - return -1; - } - *tilde_ptr = '\0'; - - left_val_ptr = param->value; - right_val_ptr = param->value + strlen(left_val_ptr) + 1; - - local_left_val = simple_strtoul(left_val_ptr, NULL, 0); - *tilde_ptr = '~'; - - if (param->set_param) { - if ((left_val < local_left_val) || - (right_val < local_left_val)) { - pr_err("Passed value range \"%u~%u\" is below" - " minimum left value \"%u\" for key \"%s\"," - " rejecting.\n", left_val, right_val, - local_left_val, param->name); - return -1; - } - } else { - if ((left_val < local_left_val) && - (right_val < local_left_val)) { - pr_err("Received value range \"%u~%u\" is" - " below minimum left value \"%u\" for key" - " \"%s\", rejecting.\n", left_val, right_val, - local_left_val, param->name); - SET_PSTATE_REJECT(param); - if (iscsi_update_param_value(param, REJECT) < 0) - return -1; - } - } - - return 0; -} - static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value) { if (IS_PSTATE_PROPOSER(param)) @@ -1027,33 +919,6 @@ static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *val return 0; } -/* - * This function is used to pick a value range number, currently just - * returns the lesser of both right values. - */ -static char *iscsi_get_value_from_number_range( - struct iscsi_param *param, - char *value) -{ - char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL; - u32 acceptor_right_value, proposer_right_value; - - tilde_ptr1 = strchr(value, '~'); - if (!tilde_ptr1) - return NULL; - *tilde_ptr1++ = '\0'; - proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0); - - tilde_ptr2 = strchr(param->value, '~'); - if (!tilde_ptr2) - return NULL; - *tilde_ptr2++ = '\0'; - acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0); - - return (acceptor_right_value >= proposer_right_value) ? - tilde_ptr1 : tilde_ptr2; -} - static char *iscsi_check_valuelist_for_support( struct iscsi_param *param, char *value) @@ -1103,7 +968,7 @@ static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value, struct iscsi_conn *conn) { u8 acceptor_boolean_value = 0, proposer_boolean_value = 0; - char *negoitated_value = NULL; + char *negotiated_value = NULL; if (IS_PSTATE_ACCEPTOR(param)) { pr_err("Received key \"%s\" twice, protocol error.\n", @@ -1203,24 +1068,16 @@ static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value, pr_debug("Updated %s to target MXDSL value: %s\n", param->name, param->value); } - - } else if (IS_TYPE_NUMBER_RANGE(param)) { - negoitated_value = iscsi_get_value_from_number_range( - param, value); - if (!negoitated_value) - return -1; - if (iscsi_update_param_value(param, negoitated_value) < 0) - return -1; } else if (IS_TYPE_VALUE_LIST(param)) { - negoitated_value = iscsi_check_valuelist_for_support( + negotiated_value = iscsi_check_valuelist_for_support( param, value); - if (!negoitated_value) { + if (!negotiated_value) { pr_err("Proposer's value list \"%s\" contains" " no valid values from Acceptor's value list" " \"%s\".\n", value, param->value); return -1; } - if (iscsi_update_param_value(param, negoitated_value) < 0) + if (iscsi_update_param_value(param, negotiated_value) < 0) return -1; } else if (IS_PHASE_DECLARATIVE(param)) { if (iscsi_update_param_value(param, value) < 0) @@ -1239,47 +1096,7 @@ static int iscsi_check_proposer_state(struct iscsi_param *param, char *value) return -1; } - if (IS_TYPE_NUMBER_RANGE(param)) { - u32 left_val = 0, right_val = 0, recieved_value = 0; - char *left_val_ptr = NULL, *right_val_ptr = NULL; - char *tilde_ptr = NULL; - - if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) { - if (iscsi_update_param_value(param, value) < 0) - return -1; - return 0; - } - - tilde_ptr = strchr(value, '~'); - if (tilde_ptr) { - pr_err("Illegal \"~\" in response for \"%s\".\n", - param->name); - return -1; - } - tilde_ptr = strchr(param->value, '~'); - if (!tilde_ptr) { - pr_err("Unable to locate numerical range" - " indicator \"~\" for \"%s\".\n", param->name); - return -1; - } - *tilde_ptr = '\0'; - - left_val_ptr = param->value; - right_val_ptr = param->value + strlen(left_val_ptr) + 1; - left_val = simple_strtoul(left_val_ptr, NULL, 0); - right_val = simple_strtoul(right_val_ptr, NULL, 0); - recieved_value = simple_strtoul(value, NULL, 0); - - *tilde_ptr = '~'; - - if ((recieved_value < left_val) || - (recieved_value > right_val)) { - pr_err("Illegal response \"%s=%u\", value must" - " be between %u and %u.\n", param->name, - recieved_value, left_val, right_val); - return -1; - } - } else if (IS_TYPE_VALUE_LIST(param)) { + if (IS_TYPE_VALUE_LIST(param)) { char *comma_ptr = NULL, *tmp_ptr = NULL; comma_ptr = strchr(value, ','); @@ -1361,9 +1178,6 @@ static int iscsi_check_value(struct iscsi_param *param, char *value) } else if (IS_TYPE_NUMBER(param)) { if (iscsi_check_numerical_value(param, value) < 0) return -1; - } else if (IS_TYPE_NUMBER_RANGE(param)) { - if (iscsi_check_numerical_range_value(param, value) < 0) - return -1; } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) { if (iscsi_check_string_or_list_value(param, value) < 0) return -1; @@ -1483,8 +1297,6 @@ static int iscsi_enforce_integrity_rules( char *tmpptr; u8 DataSequenceInOrder = 0; u8 ErrorRecoveryLevel = 0, SessionType = 0; - u8 IFMarker = 0, OFMarker = 0; - u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1; u32 FirstBurstLength = 0, MaxBurstLength = 0; struct iscsi_param *param = NULL; @@ -1503,28 +1315,12 @@ static int iscsi_enforce_integrity_rules( if (!strcmp(param->name, MAXBURSTLENGTH)) MaxBurstLength = simple_strtoul(param->value, &tmpptr, 0); - if (!strcmp(param->name, IFMARKER)) - if (!strcmp(param->value, YES)) - IFMarker = 1; - if (!strcmp(param->name, OFMARKER)) - if (!strcmp(param->value, YES)) - OFMarker = 1; - if (!strcmp(param->name, IFMARKINT)) - if (!strcmp(param->value, REJECT)) - IFMarkInt_Reject = 1; - if (!strcmp(param->name, OFMARKINT)) - if (!strcmp(param->value, REJECT)) - OFMarkInt_Reject = 1; } list_for_each_entry(param, ¶m_list->param_list, p_list) { if (!(param->phase & phase)) continue; - if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) && - (strcmp(param->name, IFMARKER) && - strcmp(param->name, OFMARKER) && - strcmp(param->name, IFMARKINT) && - strcmp(param->name, OFMARKINT)))) + if (!SessionType && !IS_PSTATE_ACCEPTOR(param)) continue; if (!strcmp(param->name, MAXOUTSTANDINGR2T) && DataSequenceInOrder && (ErrorRecoveryLevel > 0)) { @@ -1556,38 +1352,6 @@ static int iscsi_enforce_integrity_rules( param->name, param->value); } } - if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) { - if (iscsi_update_param_value(param, NO) < 0) - return -1; - IFMarker = 0; - pr_debug("Reset \"%s\" to \"%s\".\n", - param->name, param->value); - } - if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) { - if (iscsi_update_param_value(param, NO) < 0) - return -1; - OFMarker = 0; - pr_debug("Reset \"%s\" to \"%s\".\n", - param->name, param->value); - } - if (!strcmp(param->name, IFMARKINT) && !IFMarker) { - if (!strcmp(param->value, REJECT)) - continue; - param->state &= ~PSTATE_NEGOTIATE; - if (iscsi_update_param_value(param, IRRELEVANT) < 0) - return -1; - pr_debug("Reset \"%s\" to \"%s\".\n", - param->name, param->value); - } - if (!strcmp(param->name, OFMARKINT) && !OFMarker) { - if (!strcmp(param->value, REJECT)) - continue; - param->state &= ~PSTATE_NEGOTIATE; - if (iscsi_update_param_value(param, IRRELEVANT) < 0) - return -1; - pr_debug("Reset \"%s\" to \"%s\".\n", - param->name, param->value); - } } return 0; @@ -1606,7 +1370,7 @@ int iscsi_decode_text_input( tmpbuf = kzalloc(length + 1, GFP_KERNEL); if (!tmpbuf) { pr_err("Unable to allocate %u + 1 bytes for tmpbuf.\n", length); - return -1; + return -ENOMEM; } memcpy(tmpbuf, textbuf, length); @@ -1824,24 +1588,6 @@ void iscsi_set_connection_parameters( */ pr_debug("MaxRecvDataSegmentLength: %u\n", ops->MaxRecvDataSegmentLength); - } else if (!strcmp(param->name, OFMARKER)) { - ops->OFMarker = !strcmp(param->value, YES); - pr_debug("OFMarker: %s\n", - param->value); - } else if (!strcmp(param->name, IFMARKER)) { - ops->IFMarker = !strcmp(param->value, YES); - pr_debug("IFMarker: %s\n", - param->value); - } else if (!strcmp(param->name, OFMARKINT)) { - ops->OFMarkInt = - simple_strtoul(param->value, &tmpptr, 0); - pr_debug("OFMarkInt: %s\n", - param->value); - } else if (!strcmp(param->name, IFMARKINT)) { - ops->IFMarkInt = - simple_strtoul(param->value, &tmpptr, 0); - pr_debug("IFMarkInt: %s\n", - param->value); } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) { ops->InitiatorRecvDataSegmentLength = simple_strtoul(param->value, &tmpptr, 0); diff --git a/kernel/drivers/target/iscsi/iscsi_target_parameters.h b/kernel/drivers/target/iscsi/iscsi_target_parameters.h index a47046a75..a0751e3f0 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_parameters.h +++ b/kernel/drivers/target/iscsi/iscsi_target_parameters.h @@ -138,8 +138,8 @@ extern void iscsi_set_session_parameters(struct iscsi_sess_ops *, #define INITIAL_SESSIONTYPE NORMAL #define INITIAL_IFMARKER NO #define INITIAL_OFMARKER NO -#define INITIAL_IFMARKINT "2048~65535" -#define INITIAL_OFMARKINT "2048~65535" +#define INITIAL_IFMARKINT REJECT +#define INITIAL_OFMARKINT REJECT /* * Initial values for iSER parameters following RFC-5046 Section 6 @@ -239,10 +239,9 @@ extern void iscsi_set_session_parameters(struct iscsi_sess_ops *, #define TYPERANGE_AUTH 0x0200 #define TYPERANGE_DIGEST 0x0400 #define TYPERANGE_ISCSINAME 0x0800 -#define TYPERANGE_MARKINT 0x1000 -#define TYPERANGE_SESSIONTYPE 0x2000 -#define TYPERANGE_TARGETADDRESS 0x4000 -#define TYPERANGE_UTF8 0x8000 +#define TYPERANGE_SESSIONTYPE 0x1000 +#define TYPERANGE_TARGETADDRESS 0x2000 +#define TYPERANGE_UTF8 0x4000 #define IS_TYPERANGE_0_TO_2(p) ((p)->type_range & TYPERANGE_0_TO_2) #define IS_TYPERANGE_0_TO_3600(p) ((p)->type_range & TYPERANGE_0_TO_3600) diff --git a/kernel/drivers/target/iscsi/iscsi_target_stat.c b/kernel/drivers/target/iscsi/iscsi_target_stat.c index 5e1349a3b..411cb266a 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_stat.c +++ b/kernel/drivers/target/iscsi/iscsi_target_stat.c @@ -21,7 +21,6 @@ #include <linux/export.h> #include <scsi/iscsi_proto.h> #include <target/target_core_base.h> -#include <target/configfs_macros.h> #include <target/iscsi/iscsi_target_core.h> #include "iscsi_target_parameters.h" @@ -50,76 +49,56 @@ /* * Instance Attributes Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_instance, iscsi_wwn_stat_grps); -#define ISCSI_STAT_INSTANCE_ATTR(_name, _mode) \ -static struct iscsi_stat_instance_attribute \ - iscsi_stat_instance_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_instance_show_attr_##_name, \ - iscsi_stat_instance_store_attr_##_name); - -#define ISCSI_STAT_INSTANCE_ATTR_RO(_name) \ -static struct iscsi_stat_instance_attribute \ - iscsi_stat_instance_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_instance_show_attr_##_name); - -static ssize_t iscsi_stat_instance_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_instance_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_instance_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_instance_inst_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_instance_tiqn(item)->tiqn_index); } -ISCSI_STAT_INSTANCE_ATTR_RO(inst); -static ssize_t iscsi_stat_instance_show_attr_min_ver( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_min_ver_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_DRAFT20_VERSION); } -ISCSI_STAT_INSTANCE_ATTR_RO(min_ver); -static ssize_t iscsi_stat_instance_show_attr_max_ver( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_max_ver_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_DRAFT20_VERSION); } -ISCSI_STAT_INSTANCE_ATTR_RO(max_ver); -static ssize_t iscsi_stat_instance_show_attr_portals( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_portals_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_num_tpg_nps); + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_instance_tiqn(item)->tiqn_num_tpg_nps); } -ISCSI_STAT_INSTANCE_ATTR_RO(portals); -static ssize_t iscsi_stat_instance_show_attr_nodes( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_nodes_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_INST_NUM_NODES); } -ISCSI_STAT_INSTANCE_ATTR_RO(nodes); -static ssize_t iscsi_stat_instance_show_attr_sessions( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_sessions_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_nsessions); + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_instance_tiqn(item)->tiqn_nsessions); } -ISCSI_STAT_INSTANCE_ATTR_RO(sessions); -static ssize_t iscsi_stat_instance_show_attr_fail_sess( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_fail_sess_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_instance_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; u32 sess_err_count; @@ -131,88 +110,84 @@ static ssize_t iscsi_stat_instance_show_attr_fail_sess( return snprintf(page, PAGE_SIZE, "%u\n", sess_err_count); } -ISCSI_STAT_INSTANCE_ATTR_RO(fail_sess); -static ssize_t iscsi_stat_instance_show_attr_fail_type( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_fail_type_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_instance_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->last_sess_failure_type); } -ISCSI_STAT_INSTANCE_ATTR_RO(fail_type); -static ssize_t iscsi_stat_instance_show_attr_fail_rem_name( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_fail_rem_name_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_instance_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%s\n", sess_err->last_sess_fail_rem_name[0] ? sess_err->last_sess_fail_rem_name : NONE); } -ISCSI_STAT_INSTANCE_ATTR_RO(fail_rem_name); -static ssize_t iscsi_stat_instance_show_attr_disc_time( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_disc_time_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_DISCONTINUITY_TIME); } -ISCSI_STAT_INSTANCE_ATTR_RO(disc_time); -static ssize_t iscsi_stat_instance_show_attr_description( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_description_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%s\n", ISCSI_INST_DESCR); } -ISCSI_STAT_INSTANCE_ATTR_RO(description); -static ssize_t iscsi_stat_instance_show_attr_vendor( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_vendor_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "Datera, Inc. iSCSI-Target\n"); } -ISCSI_STAT_INSTANCE_ATTR_RO(vendor); -static ssize_t iscsi_stat_instance_show_attr_version( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_version_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%s\n", ISCSIT_VERSION); } -ISCSI_STAT_INSTANCE_ATTR_RO(version); -CONFIGFS_EATTR_OPS(iscsi_stat_instance, iscsi_wwn_stat_grps, - iscsi_instance_group); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, min_ver); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, max_ver); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, portals); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, nodes); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, sessions); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, fail_sess); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, fail_type); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, fail_rem_name); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, disc_time); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, description); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, vendor); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, version); static struct configfs_attribute *iscsi_stat_instance_attrs[] = { - &iscsi_stat_instance_inst.attr, - &iscsi_stat_instance_min_ver.attr, - &iscsi_stat_instance_max_ver.attr, - &iscsi_stat_instance_portals.attr, - &iscsi_stat_instance_nodes.attr, - &iscsi_stat_instance_sessions.attr, - &iscsi_stat_instance_fail_sess.attr, - &iscsi_stat_instance_fail_type.attr, - &iscsi_stat_instance_fail_rem_name.attr, - &iscsi_stat_instance_disc_time.attr, - &iscsi_stat_instance_description.attr, - &iscsi_stat_instance_vendor.attr, - &iscsi_stat_instance_version.attr, + &iscsi_stat_instance_attr_inst, + &iscsi_stat_instance_attr_min_ver, + &iscsi_stat_instance_attr_max_ver, + &iscsi_stat_instance_attr_portals, + &iscsi_stat_instance_attr_nodes, + &iscsi_stat_instance_attr_sessions, + &iscsi_stat_instance_attr_fail_sess, + &iscsi_stat_instance_attr_fail_type, + &iscsi_stat_instance_attr_fail_rem_name, + &iscsi_stat_instance_attr_disc_time, + &iscsi_stat_instance_attr_description, + &iscsi_stat_instance_attr_vendor, + &iscsi_stat_instance_attr_version, NULL, }; -static struct configfs_item_operations iscsi_stat_instance_item_ops = { - .show_attribute = iscsi_stat_instance_attr_show, - .store_attribute = iscsi_stat_instance_attr_store, -}; - struct config_item_type iscsi_stat_instance_cit = { - .ct_item_ops = &iscsi_stat_instance_item_ops, .ct_attrs = iscsi_stat_instance_attrs, .ct_owner = THIS_MODULE, }; @@ -220,81 +195,61 @@ struct config_item_type iscsi_stat_instance_cit = { /* * Instance Session Failure Stats Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_sess_err, iscsi_wwn_stat_grps); -#define ISCSI_STAT_SESS_ERR_ATTR(_name, _mode) \ -static struct iscsi_stat_sess_err_attribute \ - iscsi_stat_sess_err_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_sess_err_show_attr_##_name, \ - iscsi_stat_sess_err_store_attr_##_name); - -#define ISCSI_STAT_SESS_ERR_ATTR_RO(_name) \ -static struct iscsi_stat_sess_err_attribute \ - iscsi_stat_sess_err_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_sess_err_show_attr_##_name); - -static ssize_t iscsi_stat_sess_err_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_sess_err_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_sess_err_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_sess_err_inst_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_sess_err_tiqn(item)->tiqn_index); } -ISCSI_STAT_SESS_ERR_ATTR_RO(inst); -static ssize_t iscsi_stat_sess_err_show_attr_digest_errors( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_err_digest_errors_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_sess_err_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->digest_errors); } -ISCSI_STAT_SESS_ERR_ATTR_RO(digest_errors); -static ssize_t iscsi_stat_sess_err_show_attr_cxn_errors( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_err_cxn_errors_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_sess_err_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->cxn_timeout_errors); } -ISCSI_STAT_SESS_ERR_ATTR_RO(cxn_errors); -static ssize_t iscsi_stat_sess_err_show_attr_format_errors( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_err_format_errors_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_sess_err_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->pdu_format_errors); } -ISCSI_STAT_SESS_ERR_ATTR_RO(format_errors); -CONFIGFS_EATTR_OPS(iscsi_stat_sess_err, iscsi_wwn_stat_grps, - iscsi_sess_err_group); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, digest_errors); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, cxn_errors); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, format_errors); static struct configfs_attribute *iscsi_stat_sess_err_attrs[] = { - &iscsi_stat_sess_err_inst.attr, - &iscsi_stat_sess_err_digest_errors.attr, - &iscsi_stat_sess_err_cxn_errors.attr, - &iscsi_stat_sess_err_format_errors.attr, + &iscsi_stat_sess_err_attr_inst, + &iscsi_stat_sess_err_attr_digest_errors, + &iscsi_stat_sess_err_attr_cxn_errors, + &iscsi_stat_sess_err_attr_format_errors, NULL, }; -static struct configfs_item_operations iscsi_stat_sess_err_item_ops = { - .show_attribute = iscsi_stat_sess_err_attr_show, - .store_attribute = iscsi_stat_sess_err_attr_store, -}; - struct config_item_type iscsi_stat_sess_err_cit = { - .ct_item_ops = &iscsi_stat_sess_err_item_ops, .ct_attrs = iscsi_stat_sess_err_attrs, .ct_owner = THIS_MODULE, }; @@ -302,42 +257,30 @@ struct config_item_type iscsi_stat_sess_err_cit = { /* * Target Attributes Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_tgt_attr, iscsi_wwn_stat_grps); -#define ISCSI_STAT_TGT_ATTR(_name, _mode) \ -static struct iscsi_stat_tgt_attr_attribute \ - iscsi_stat_tgt_attr_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_tgt-attr_show_attr_##_name, \ - iscsi_stat_tgt_attr_store_attr_##_name); - -#define ISCSI_STAT_TGT_ATTR_RO(_name) \ -static struct iscsi_stat_tgt_attr_attribute \ - iscsi_stat_tgt_attr_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_tgt_attr_show_attr_##_name); - -static ssize_t iscsi_stat_tgt_attr_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_tgt_attr_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_tgt_attr_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_tgt_attr_inst_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_tgt_attr_tiqn(item)->tiqn_index); } -ISCSI_STAT_TGT_ATTR_RO(inst); -static ssize_t iscsi_stat_tgt_attr_show_attr_indx( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_indx_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_NODE_INDEX); } -ISCSI_STAT_TGT_ATTR_RO(indx); -static ssize_t iscsi_stat_tgt_attr_show_attr_login_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_login_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; u32 fail_count; @@ -349,13 +292,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_login_fails( return snprintf(page, PAGE_SIZE, "%u\n", fail_count); } -ISCSI_STAT_TGT_ATTR_RO(login_fails); -static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_time( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_last_fail_time_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; u32 last_fail_time; @@ -367,13 +308,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_time( return snprintf(page, PAGE_SIZE, "%u\n", last_fail_time); } -ISCSI_STAT_TGT_ATTR_RO(last_fail_time); -static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_type( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_last_fail_type_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; u32 last_fail_type; @@ -383,13 +322,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_type( return snprintf(page, PAGE_SIZE, "%u\n", last_fail_type); } -ISCSI_STAT_TGT_ATTR_RO(last_fail_type); -static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_name( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_fail_intr_name_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; unsigned char buf[224]; @@ -400,13 +337,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_name( return snprintf(page, PAGE_SIZE, "%s\n", buf); } -ISCSI_STAT_TGT_ATTR_RO(fail_intr_name); -static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr_type( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_fail_intr_addr_type_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; int ret; @@ -419,46 +354,43 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr_type( return ret; } -ISCSI_STAT_TGT_ATTR_RO(fail_intr_addr_type); -static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_fail_intr_addr_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; int ret; spin_lock(&lstat->lock); - ret = snprintf(page, PAGE_SIZE, "%s\n", lstat->last_intr_fail_ip_addr); + ret = snprintf(page, PAGE_SIZE, "%pISc\n", &lstat->last_intr_fail_sockaddr); spin_unlock(&lstat->lock); return ret; } -ISCSI_STAT_TGT_ATTR_RO(fail_intr_addr); -CONFIGFS_EATTR_OPS(iscsi_stat_tgt_attr, iscsi_wwn_stat_grps, - iscsi_tgt_attr_group); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, login_fails); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, last_fail_time); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, last_fail_type); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, fail_intr_name); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, fail_intr_addr_type); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, fail_intr_addr); static struct configfs_attribute *iscsi_stat_tgt_attr_attrs[] = { - &iscsi_stat_tgt_attr_inst.attr, - &iscsi_stat_tgt_attr_indx.attr, - &iscsi_stat_tgt_attr_login_fails.attr, - &iscsi_stat_tgt_attr_last_fail_time.attr, - &iscsi_stat_tgt_attr_last_fail_type.attr, - &iscsi_stat_tgt_attr_fail_intr_name.attr, - &iscsi_stat_tgt_attr_fail_intr_addr_type.attr, - &iscsi_stat_tgt_attr_fail_intr_addr.attr, + &iscsi_stat_tgt_attr_attr_inst, + &iscsi_stat_tgt_attr_attr_indx, + &iscsi_stat_tgt_attr_attr_login_fails, + &iscsi_stat_tgt_attr_attr_last_fail_time, + &iscsi_stat_tgt_attr_attr_last_fail_type, + &iscsi_stat_tgt_attr_attr_fail_intr_name, + &iscsi_stat_tgt_attr_attr_fail_intr_addr_type, + &iscsi_stat_tgt_attr_attr_fail_intr_addr, NULL, }; -static struct configfs_item_operations iscsi_stat_tgt_attr_item_ops = { - .show_attribute = iscsi_stat_tgt_attr_attr_show, - .store_attribute = iscsi_stat_tgt_attr_attr_store, -}; - struct config_item_type iscsi_stat_tgt_attr_cit = { - .ct_item_ops = &iscsi_stat_tgt_attr_item_ops, .ct_attrs = iscsi_stat_tgt_attr_attrs, .ct_owner = THIS_MODULE, }; @@ -466,42 +398,29 @@ struct config_item_type iscsi_stat_tgt_attr_cit = { /* * Target Login Stats Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_login, iscsi_wwn_stat_grps); -#define ISCSI_STAT_LOGIN(_name, _mode) \ -static struct iscsi_stat_login_attribute \ - iscsi_stat_login_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_login_show_attr_##_name, \ - iscsi_stat_login_store_attr_##_name); - -#define ISCSI_STAT_LOGIN_RO(_name) \ -static struct iscsi_stat_login_attribute \ - iscsi_stat_login_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_login_show_attr_##_name); - -static ssize_t iscsi_stat_login_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_login_stat_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_login_stats_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_login_inst_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_login_stat_tiqn(item)->tiqn_index); } -ISCSI_STAT_LOGIN_RO(inst); -static ssize_t iscsi_stat_login_show_attr_indx( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_indx_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_NODE_INDEX); } -ISCSI_STAT_LOGIN_RO(indx); -static ssize_t iscsi_stat_login_show_attr_accepts( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_accepts_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -511,13 +430,11 @@ static ssize_t iscsi_stat_login_show_attr_accepts( return ret; } -ISCSI_STAT_LOGIN_RO(accepts); -static ssize_t iscsi_stat_login_show_attr_other_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_other_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -527,13 +444,11 @@ static ssize_t iscsi_stat_login_show_attr_other_fails( return ret; } -ISCSI_STAT_LOGIN_RO(other_fails); -static ssize_t iscsi_stat_login_show_attr_redirects( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_redirects_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -543,13 +458,11 @@ static ssize_t iscsi_stat_login_show_attr_redirects( return ret; } -ISCSI_STAT_LOGIN_RO(redirects); -static ssize_t iscsi_stat_login_show_attr_authorize_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_authorize_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -559,13 +472,11 @@ static ssize_t iscsi_stat_login_show_attr_authorize_fails( return ret; } -ISCSI_STAT_LOGIN_RO(authorize_fails); -static ssize_t iscsi_stat_login_show_attr_authenticate_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_authenticate_fails_show( + struct config_item *item, char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -575,13 +486,11 @@ static ssize_t iscsi_stat_login_show_attr_authenticate_fails( return ret; } -ISCSI_STAT_LOGIN_RO(authenticate_fails); -static ssize_t iscsi_stat_login_show_attr_negotiate_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_negotiate_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -591,30 +500,29 @@ static ssize_t iscsi_stat_login_show_attr_negotiate_fails( return ret; } -ISCSI_STAT_LOGIN_RO(negotiate_fails); -CONFIGFS_EATTR_OPS(iscsi_stat_login, iscsi_wwn_stat_grps, - iscsi_login_stats_group); +CONFIGFS_ATTR_RO(iscsi_stat_login_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_login_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_login_, accepts); +CONFIGFS_ATTR_RO(iscsi_stat_login_, other_fails); +CONFIGFS_ATTR_RO(iscsi_stat_login_, redirects); +CONFIGFS_ATTR_RO(iscsi_stat_login_, authorize_fails); +CONFIGFS_ATTR_RO(iscsi_stat_login_, authenticate_fails); +CONFIGFS_ATTR_RO(iscsi_stat_login_, negotiate_fails); static struct configfs_attribute *iscsi_stat_login_stats_attrs[] = { - &iscsi_stat_login_inst.attr, - &iscsi_stat_login_indx.attr, - &iscsi_stat_login_accepts.attr, - &iscsi_stat_login_other_fails.attr, - &iscsi_stat_login_redirects.attr, - &iscsi_stat_login_authorize_fails.attr, - &iscsi_stat_login_authenticate_fails.attr, - &iscsi_stat_login_negotiate_fails.attr, + &iscsi_stat_login_attr_inst, + &iscsi_stat_login_attr_indx, + &iscsi_stat_login_attr_accepts, + &iscsi_stat_login_attr_other_fails, + &iscsi_stat_login_attr_redirects, + &iscsi_stat_login_attr_authorize_fails, + &iscsi_stat_login_attr_authenticate_fails, + &iscsi_stat_login_attr_negotiate_fails, NULL, }; -static struct configfs_item_operations iscsi_stat_login_stats_item_ops = { - .show_attribute = iscsi_stat_login_attr_show, - .store_attribute = iscsi_stat_login_attr_store, -}; - struct config_item_type iscsi_stat_login_cit = { - .ct_item_ops = &iscsi_stat_login_stats_item_ops, .ct_attrs = iscsi_stat_login_stats_attrs, .ct_owner = THIS_MODULE, }; @@ -622,78 +530,56 @@ struct config_item_type iscsi_stat_login_cit = { /* * Target Logout Stats Table */ - -CONFIGFS_EATTR_STRUCT(iscsi_stat_logout, iscsi_wwn_stat_grps); -#define ISCSI_STAT_LOGOUT(_name, _mode) \ -static struct iscsi_stat_logout_attribute \ - iscsi_stat_logout_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_logout_show_attr_##_name, \ - iscsi_stat_logout_store_attr_##_name); - -#define ISCSI_STAT_LOGOUT_RO(_name) \ -static struct iscsi_stat_logout_attribute \ - iscsi_stat_logout_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_logout_show_attr_##_name); - -static ssize_t iscsi_stat_logout_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) +static struct iscsi_tiqn *iscsi_logout_stat_tiqn(struct config_item *item) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_logout_stats_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_logout_inst_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_logout_stat_tiqn(item)->tiqn_index); } -ISCSI_STAT_LOGOUT_RO(inst); -static ssize_t iscsi_stat_logout_show_attr_indx( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_logout_indx_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_NODE_INDEX); } -ISCSI_STAT_LOGOUT_RO(indx); -static ssize_t iscsi_stat_logout_show_attr_normal_logouts( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_logout_normal_logouts_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_logout_stat_tiqn(item); struct iscsi_logout_stats *lstats = &tiqn->logout_stats; return snprintf(page, PAGE_SIZE, "%u\n", lstats->normal_logouts); } -ISCSI_STAT_LOGOUT_RO(normal_logouts); -static ssize_t iscsi_stat_logout_show_attr_abnormal_logouts( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_logout_abnormal_logouts_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_logout_stat_tiqn(item); struct iscsi_logout_stats *lstats = &tiqn->logout_stats; return snprintf(page, PAGE_SIZE, "%u\n", lstats->abnormal_logouts); } -ISCSI_STAT_LOGOUT_RO(abnormal_logouts); -CONFIGFS_EATTR_OPS(iscsi_stat_logout, iscsi_wwn_stat_grps, - iscsi_logout_stats_group); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, normal_logouts); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, abnormal_logouts); static struct configfs_attribute *iscsi_stat_logout_stats_attrs[] = { - &iscsi_stat_logout_inst.attr, - &iscsi_stat_logout_indx.attr, - &iscsi_stat_logout_normal_logouts.attr, - &iscsi_stat_logout_abnormal_logouts.attr, + &iscsi_stat_logout_attr_inst, + &iscsi_stat_logout_attr_indx, + &iscsi_stat_logout_attr_normal_logouts, + &iscsi_stat_logout_attr_abnormal_logouts, NULL, }; -static struct configfs_item_operations iscsi_stat_logout_stats_item_ops = { - .show_attribute = iscsi_stat_logout_attr_show, - .store_attribute = iscsi_stat_logout_attr_store, -}; - struct config_item_type iscsi_stat_logout_cit = { - .ct_item_ops = &iscsi_stat_logout_stats_item_ops, .ct_attrs = iscsi_stat_logout_stats_attrs, .ct_owner = THIS_MODULE, }; @@ -701,39 +587,26 @@ struct config_item_type iscsi_stat_logout_cit = { /* * Session Stats Table */ +static struct iscsi_node_acl *iscsi_stat_nacl(struct config_item *item) +{ + struct iscsi_node_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_node_stat_grps, iscsi_sess_stats_group); + return container_of(igrps, struct iscsi_node_acl, node_stat_grps); +} -CONFIGFS_EATTR_STRUCT(iscsi_stat_sess, iscsi_node_stat_grps); -#define ISCSI_STAT_SESS(_name, _mode) \ -static struct iscsi_stat_sess_attribute \ - iscsi_stat_sess_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_sess_show_attr_##_name, \ - iscsi_stat_sess_store_attr_##_name); - -#define ISCSI_STAT_SESS_RO(_name) \ -static struct iscsi_stat_sess_attribute \ - iscsi_stat_sess_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_sess_show_attr_##_name); - -static ssize_t iscsi_stat_sess_show_attr_inst( - struct iscsi_node_stat_grps *igrps, char *page) -{ - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); +static ssize_t iscsi_stat_sess_inst_show(struct config_item *item, char *page) +{ + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_wwn *wwn = acl->se_node_acl.se_tpg->se_tpg_wwn; struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); } -ISCSI_STAT_SESS_RO(inst); -static ssize_t iscsi_stat_sess_show_attr_node( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_node_show(struct config_item *item, char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -751,13 +624,10 @@ static ssize_t iscsi_stat_sess_show_attr_node( return ret; } -ISCSI_STAT_SESS_RO(node); -static ssize_t iscsi_stat_sess_show_attr_indx( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_indx_show(struct config_item *item, char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -775,13 +645,11 @@ static ssize_t iscsi_stat_sess_show_attr_indx( return ret; } -ISCSI_STAT_SESS_RO(indx); -static ssize_t iscsi_stat_sess_show_attr_cmd_pdus( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_cmd_pdus_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -799,13 +667,11 @@ static ssize_t iscsi_stat_sess_show_attr_cmd_pdus( return ret; } -ISCSI_STAT_SESS_RO(cmd_pdus); -static ssize_t iscsi_stat_sess_show_attr_rsp_pdus( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_rsp_pdus_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -823,13 +689,11 @@ static ssize_t iscsi_stat_sess_show_attr_rsp_pdus( return ret; } -ISCSI_STAT_SESS_RO(rsp_pdus); -static ssize_t iscsi_stat_sess_show_attr_txdata_octs( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_txdata_octs_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -847,13 +711,11 @@ static ssize_t iscsi_stat_sess_show_attr_txdata_octs( return ret; } -ISCSI_STAT_SESS_RO(txdata_octs); -static ssize_t iscsi_stat_sess_show_attr_rxdata_octs( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_rxdata_octs_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -871,13 +733,11 @@ static ssize_t iscsi_stat_sess_show_attr_rxdata_octs( return ret; } -ISCSI_STAT_SESS_RO(rxdata_octs); -static ssize_t iscsi_stat_sess_show_attr_conn_digest_errors( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_conn_digest_errors_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -895,13 +755,11 @@ static ssize_t iscsi_stat_sess_show_attr_conn_digest_errors( return ret; } -ISCSI_STAT_SESS_RO(conn_digest_errors); -static ssize_t iscsi_stat_sess_show_attr_conn_timeout_errors( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_conn_timeout_errors_show( + struct config_item *item, char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -919,31 +777,31 @@ static ssize_t iscsi_stat_sess_show_attr_conn_timeout_errors( return ret; } -ISCSI_STAT_SESS_RO(conn_timeout_errors); -CONFIGFS_EATTR_OPS(iscsi_stat_sess, iscsi_node_stat_grps, - iscsi_sess_stats_group); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, node); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, cmd_pdus); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, rsp_pdus); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, txdata_octs); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, rxdata_octs); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, conn_digest_errors); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, conn_timeout_errors); static struct configfs_attribute *iscsi_stat_sess_stats_attrs[] = { - &iscsi_stat_sess_inst.attr, - &iscsi_stat_sess_node.attr, - &iscsi_stat_sess_indx.attr, - &iscsi_stat_sess_cmd_pdus.attr, - &iscsi_stat_sess_rsp_pdus.attr, - &iscsi_stat_sess_txdata_octs.attr, - &iscsi_stat_sess_rxdata_octs.attr, - &iscsi_stat_sess_conn_digest_errors.attr, - &iscsi_stat_sess_conn_timeout_errors.attr, + &iscsi_stat_sess_attr_inst, + &iscsi_stat_sess_attr_node, + &iscsi_stat_sess_attr_indx, + &iscsi_stat_sess_attr_cmd_pdus, + &iscsi_stat_sess_attr_rsp_pdus, + &iscsi_stat_sess_attr_txdata_octs, + &iscsi_stat_sess_attr_rxdata_octs, + &iscsi_stat_sess_attr_conn_digest_errors, + &iscsi_stat_sess_attr_conn_timeout_errors, NULL, }; -static struct configfs_item_operations iscsi_stat_sess_stats_item_ops = { - .show_attribute = iscsi_stat_sess_attr_show, - .store_attribute = iscsi_stat_sess_attr_store, -}; - struct config_item_type iscsi_stat_sess_cit = { - .ct_item_ops = &iscsi_stat_sess_stats_item_ops, .ct_attrs = iscsi_stat_sess_stats_attrs, .ct_owner = THIS_MODULE, }; diff --git a/kernel/drivers/target/iscsi/iscsi_target_tmr.c b/kernel/drivers/target/iscsi/iscsi_target_tmr.c index b0224a77e..11320df93 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_tmr.c +++ b/kernel/drivers/target/iscsi/iscsi_target_tmr.c @@ -17,7 +17,7 @@ ******************************************************************************/ #include <asm/unaligned.h> -#include <scsi/scsi_device.h> +#include <scsi/scsi_proto.h> #include <scsi/iscsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> @@ -50,7 +50,7 @@ u8 iscsit_tmr_abort_task( pr_err("Unable to locate RefTaskTag: 0x%08x on CID:" " %hu.\n", hdr->rtt, conn->cid); return (iscsi_sna_gte(be32_to_cpu(hdr->refcmdsn), conn->sess->exp_cmd_sn) && - iscsi_sna_lte(be32_to_cpu(hdr->refcmdsn), conn->sess->max_cmd_sn)) ? + iscsi_sna_lte(be32_to_cpu(hdr->refcmdsn), (u32) atomic_read(&conn->sess->max_cmd_sn))) ? ISCSI_TMF_RSP_COMPLETE : ISCSI_TMF_RSP_NO_TASK; } if (ref_cmd->cmd_sn != be32_to_cpu(hdr->refcmdsn)) { @@ -120,7 +120,7 @@ u8 iscsit_tmr_task_reassign( struct iscsi_tmr_req *tmr_req = cmd->tmr_req; struct se_tmr_req *se_tmr = cmd->se_cmd.se_tmr_req; struct iscsi_tm *hdr = (struct iscsi_tm *) buf; - int ret, ref_lun; + u64 ret, ref_lun; pr_debug("Got TASK_REASSIGN TMR ITT: 0x%08x," " RefTaskTag: 0x%08x, ExpDataSN: 0x%08x, CID: %hu\n", @@ -164,7 +164,7 @@ u8 iscsit_tmr_task_reassign( ref_lun = scsilun_to_int(&hdr->lun); if (ref_lun != ref_cmd->se_cmd.orig_fe_lun) { pr_err("Unable to perform connection recovery for" - " differing ref_lun: %d ref_cmd orig_fe_lun: %u\n", + " differing ref_lun: %llu ref_cmd orig_fe_lun: %llu\n", ref_lun, ref_cmd->se_cmd.orig_fe_lun); return ISCSI_TMF_RSP_REJECTED; } diff --git a/kernel/drivers/target/iscsi/iscsi_target_tpg.c b/kernel/drivers/target/iscsi/iscsi_target_tpg.c index 5e3295fe4..23c95cd14 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_tpg.c +++ b/kernel/drivers/target/iscsi/iscsi_target_tpg.c @@ -18,7 +18,6 @@ #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include <target/iscsi/iscsi_target_core.h> #include "iscsi_target_erl0.h" @@ -67,9 +66,12 @@ int iscsit_load_discovery_tpg(void) pr_err("Unable to allocate struct iscsi_portal_group\n"); return -1; } - - ret = core_tpg_register(&iscsi_ops, NULL, &tpg->tpg_se_tpg, - tpg, TRANSPORT_TPG_TYPE_DISCOVERY); + /* + * Save iscsi_ops pointer for special case discovery TPG that + * doesn't exist as se_wwn->wwn_group within configfs. + */ + tpg->tpg_se_tpg.se_tpg_tfo = &iscsi_ops; + ret = core_tpg_register(NULL, &tpg->tpg_se_tpg, -1); if (ret < 0) { kfree(tpg); return -1; @@ -224,6 +226,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg) a->default_erl = TA_DEFAULT_ERL; a->t10_pi = TA_DEFAULT_T10_PI; a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE; + a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS; } int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg) @@ -280,8 +283,6 @@ int iscsit_tpg_del_portal_group( return -EPERM; } - core_tpg_clear_object_luns(&tpg->tpg_se_tpg); - if (tpg->param_list) { iscsi_release_param_list(tpg->param_list); tpg->param_list = NULL; @@ -430,7 +431,7 @@ struct iscsi_tpg_np *iscsit_tpg_locate_child_np( static bool iscsit_tpg_check_network_portal( struct iscsi_tiqn *tiqn, - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, int network_transport) { struct iscsi_portal_group *tpg; @@ -459,8 +460,7 @@ static bool iscsit_tpg_check_network_portal( struct iscsi_tpg_np *iscsit_tpg_add_network_portal( struct iscsi_portal_group *tpg, - struct __kernel_sockaddr_storage *sockaddr, - char *ip_str, + struct sockaddr_storage *sockaddr, struct iscsi_tpg_np *tpg_np_parent, int network_transport) { @@ -470,8 +470,8 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( if (!tpg_np_parent) { if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr, network_transport)) { - pr_err("Network Portal: %s already exists on a" - " different TPG on %s\n", ip_str, + pr_err("Network Portal: %pISc already exists on a" + " different TPG on %s\n", sockaddr, tpg->tpg_tiqn->tiqn); return ERR_PTR(-EEXIST); } @@ -484,7 +484,7 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( return ERR_PTR(-ENOMEM); } - np = iscsit_add_np(sockaddr, ip_str, network_transport); + np = iscsit_add_np(sockaddr, network_transport); if (IS_ERR(np)) { kfree(tpg_np); return ERR_CAST(np); @@ -514,8 +514,8 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( spin_unlock(&tpg_np_parent->tpg_np_parent_lock); } - pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n", - tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, + pr_debug("CORE[%s] - Added Network Portal: %pISpc,%hu on %s\n", + tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt, np->np_transport->name); return tpg_np; @@ -528,8 +528,8 @@ static int iscsit_tpg_release_np( { iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true); - pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n", - tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, + pr_debug("CORE[%s] - Removed Network Portal: %pISpc,%hu on %s\n", + tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt, np->np_transport->name); tpg_np->tpg_np = NULL; @@ -892,3 +892,21 @@ int iscsit_ta_fabric_prot_type( return 0; } + +int iscsit_ta_tpg_enabled_sendtargets( + struct iscsi_portal_group *tpg, + u32 flag) +{ + struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; + + if ((flag != 0) && (flag != 1)) { + pr_err("Illegal value %d\n", flag); + return -EINVAL; + } + + a->tpg_enabled_sendtargets = flag; + pr_debug("iSCSI_TPG[%hu] - TPG enabled bit required for SendTargets:" + " %s\n", tpg->tpgt, (a->tpg_enabled_sendtargets) ? "ON" : "OFF"); + + return 0; +} diff --git a/kernel/drivers/target/iscsi/iscsi_target_tpg.h b/kernel/drivers/target/iscsi/iscsi_target_tpg.h index 95ff5bdec..9db32bd24 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_tpg.h +++ b/kernel/drivers/target/iscsi/iscsi_target_tpg.h @@ -22,7 +22,7 @@ extern struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(struct iscsi_session extern void iscsit_tpg_del_external_nps(struct iscsi_tpg_np *); extern struct iscsi_tpg_np *iscsit_tpg_locate_child_np(struct iscsi_tpg_np *, int); extern struct iscsi_tpg_np *iscsit_tpg_add_network_portal(struct iscsi_portal_group *, - struct __kernel_sockaddr_storage *, char *, struct iscsi_tpg_np *, + struct sockaddr_storage *, struct iscsi_tpg_np *, int); extern int iscsit_tpg_del_network_portal(struct iscsi_portal_group *, struct iscsi_tpg_np *); @@ -40,5 +40,6 @@ extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32); extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32); extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32); extern int iscsit_ta_fabric_prot_type(struct iscsi_portal_group *, u32); +extern int iscsit_ta_tpg_enabled_sendtargets(struct iscsi_portal_group *, u32); #endif /* ISCSI_TARGET_TPG_H */ diff --git a/kernel/drivers/target/iscsi/iscsi_target_util.c b/kernel/drivers/target/iscsi/iscsi_target_util.c index b18edda3e..428b0d9e3 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_util.c +++ b/kernel/drivers/target/iscsi/iscsi_target_util.c @@ -22,7 +22,6 @@ #include <scsi/iscsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include <target/iscsi/iscsi_transport.h> #include <target/iscsi/iscsi_target_core.h> @@ -234,6 +233,7 @@ struct iscsi_r2t *iscsit_get_holder_for_r2tsn( static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cmdsn) { + u32 max_cmdsn; int ret; /* @@ -242,10 +242,10 @@ static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cm * or order CmdSNs due to multiple connection sessions and/or * CRC failures. */ - if (iscsi_sna_gt(cmdsn, sess->max_cmd_sn)) { + max_cmdsn = atomic_read(&sess->max_cmd_sn); + if (iscsi_sna_gt(cmdsn, max_cmdsn)) { pr_err("Received CmdSN: 0x%08x is greater than" - " MaxCmdSN: 0x%08x, ignoring.\n", cmdsn, - sess->max_cmd_sn); + " MaxCmdSN: 0x%08x, ignoring.\n", cmdsn, max_cmdsn); ret = CMDSN_MAXCMDSN_OVERRUN; } else if (cmdsn == sess->exp_cmd_sn) { @@ -746,7 +746,7 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown) rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown); if (!rc && shutdown && se_cmd && se_cmd->se_sess) { __iscsit_free_cmd(cmd, true, shutdown); - target_put_sess_cmd(se_cmd->se_sess, se_cmd); + target_put_sess_cmd(se_cmd); } break; case ISCSI_OP_REJECT: @@ -762,7 +762,7 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown) rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown); if (!rc && shutdown && se_cmd->se_sess) { __iscsit_free_cmd(cmd, true, shutdown); - target_put_sess_cmd(se_cmd->se_sess, se_cmd); + target_put_sess_cmd(se_cmd); } break; } @@ -809,54 +809,6 @@ void iscsit_inc_session_usage_count(struct iscsi_session *sess) spin_unlock_bh(&sess->session_usage_lock); } -/* - * Setup conn->if_marker and conn->of_marker values based upon - * the initial marker-less interval. (see iSCSI v19 A.2) - */ -int iscsit_set_sync_and_steering_values(struct iscsi_conn *conn) -{ - int login_ifmarker_count = 0, login_ofmarker_count = 0, next_marker = 0; - /* - * IFMarkInt and OFMarkInt are negotiated as 32-bit words. - */ - u32 IFMarkInt = (conn->conn_ops->IFMarkInt * 4); - u32 OFMarkInt = (conn->conn_ops->OFMarkInt * 4); - - if (conn->conn_ops->OFMarker) { - /* - * Account for the first Login Command received not - * via iscsi_recv_msg(). - */ - conn->of_marker += ISCSI_HDR_LEN; - if (conn->of_marker <= OFMarkInt) { - conn->of_marker = (OFMarkInt - conn->of_marker); - } else { - login_ofmarker_count = (conn->of_marker / OFMarkInt); - next_marker = (OFMarkInt * (login_ofmarker_count + 1)) + - (login_ofmarker_count * MARKER_SIZE); - conn->of_marker = (next_marker - conn->of_marker); - } - conn->of_marker_offset = 0; - pr_debug("Setting OFMarker value to %u based on Initial" - " Markerless Interval.\n", conn->of_marker); - } - - if (conn->conn_ops->IFMarker) { - if (conn->if_marker <= IFMarkInt) { - conn->if_marker = (IFMarkInt - conn->if_marker); - } else { - login_ifmarker_count = (conn->if_marker / IFMarkInt); - next_marker = (IFMarkInt * (login_ifmarker_count + 1)) + - (login_ifmarker_count * MARKER_SIZE); - conn->if_marker = (next_marker - conn->if_marker); - } - pr_debug("Setting IFMarker value to %u based on Initial" - " Markerless Interval.\n", conn->if_marker); - } - - return 0; -} - struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *sess, u16 cid) { struct iscsi_conn *conn; @@ -1420,6 +1372,33 @@ int tx_data( return iscsit_do_tx_data(conn, &c); } +static bool sockaddr_equal(struct sockaddr_storage *x, struct sockaddr_storage *y) +{ + switch (x->ss_family) { + case AF_INET: { + struct sockaddr_in *sinx = (struct sockaddr_in *)x; + struct sockaddr_in *siny = (struct sockaddr_in *)y; + if (sinx->sin_addr.s_addr != siny->sin_addr.s_addr) + return false; + if (sinx->sin_port != siny->sin_port) + return false; + break; + } + case AF_INET6: { + struct sockaddr_in6 *sinx = (struct sockaddr_in6 *)x; + struct sockaddr_in6 *siny = (struct sockaddr_in6 *)y; + if (!ipv6_addr_equal(&sinx->sin6_addr, &siny->sin6_addr)) + return false; + if (sinx->sin6_port != siny->sin6_port) + return false; + break; + } + default: + return false; + } + return true; +} + void iscsit_collect_login_stats( struct iscsi_conn *conn, u8 status_class, @@ -1436,7 +1415,7 @@ void iscsit_collect_login_stats( ls = &tiqn->login_stats; spin_lock(&ls->lock); - if (!strcmp(conn->login_ip, ls->last_intr_fail_ip_addr) && + if (sockaddr_equal(&conn->login_sockaddr, &ls->last_intr_fail_sockaddr) && ((get_jiffies_64() - ls->last_fail_time) < 10)) { /* We already have the failure info for this login */ spin_unlock(&ls->lock); @@ -1476,8 +1455,7 @@ void iscsit_collect_login_stats( ls->last_intr_fail_ip_family = conn->login_family; - snprintf(ls->last_intr_fail_ip_addr, IPV6_ADDRESS_SPACE, - "%s", conn->login_ip); + ls->last_intr_fail_sockaddr = conn->login_sockaddr; ls->last_fail_time = get_jiffies_64(); } diff --git a/kernel/drivers/target/iscsi/iscsi_target_util.h b/kernel/drivers/target/iscsi/iscsi_target_util.h index 1ab754a67..995f1cb29 100644 --- a/kernel/drivers/target/iscsi/iscsi_target_util.h +++ b/kernel/drivers/target/iscsi/iscsi_target_util.h @@ -34,7 +34,6 @@ extern void iscsit_free_cmd(struct iscsi_cmd *, bool); extern int iscsit_check_session_usage_count(struct iscsi_session *); extern void iscsit_dec_session_usage_count(struct iscsi_session *); extern void iscsit_inc_session_usage_count(struct iscsi_session *); -extern int iscsit_set_sync_and_steering_values(struct iscsi_conn *); extern struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *, u16); extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *, u16); extern void iscsit_check_conn_usage_count(struct iscsi_conn *); diff --git a/kernel/drivers/target/loopback/tcm_loop.c b/kernel/drivers/target/loopback/tcm_loop.c index 51f0c895c..4fb0eca86 100644 --- a/kernel/drivers/target/loopback/tcm_loop.c +++ b/kernel/drivers/target/loopback/tcm_loop.c @@ -34,15 +34,11 @@ #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_fabric_configfs.h> -#include <target/target_core_configfs.h> #include "tcm_loop.h" #define to_tcm_loop_hba(hba) container_of(hba, struct tcm_loop_hba, dev) -static const struct target_core_fabric_ops loop_ops; - static struct workqueue_struct *tcm_loop_workqueue; static struct kmem_cache *tcm_loop_cmd_cache; @@ -165,6 +161,7 @@ static void tcm_loop_submission_work(struct work_struct *work) transfer_length = scsi_bufflen(sc); } + se_cmd->tag = tl_cmd->sc_cmd_tag; rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd, &tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun, transfer_length, TCM_SIMPLE_TAG, @@ -217,7 +214,7 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc) * to struct scsi_device */ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg, - int lun, int task, enum tcm_tmreq_table tmr) + u64 lun, int task, enum tcm_tmreq_table tmr) { struct se_cmd *se_cmd = NULL; struct se_session *se_sess; @@ -379,7 +376,6 @@ static struct scsi_host_template tcm_loop_driver_template = { .use_clustering = DISABLE_CLUSTERING, .slave_alloc = tcm_loop_slave_alloc, .module = THIS_MODULE, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -409,7 +405,7 @@ static int tcm_loop_driver_probe(struct device *dev) sh->max_id = 2; sh->max_lun = 0; sh->max_channel = 0; - sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN; + sh->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE; host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION | @@ -520,147 +516,26 @@ static char *tcm_loop_get_fabric_name(void) return "loopback"; } -static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg) +static inline struct tcm_loop_tpg *tl_tpg(struct se_portal_group *se_tpg) { - struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr; - struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; - /* - * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba() - * time based on the protocol dependent prefix of the passed configfs group. - * - * Based upon tl_proto_id, TCM_Loop emulates the requested fabric - * ProtocolID using target_core_fabric_lib.c symbols. - */ - switch (tl_hba->tl_proto_id) { - case SCSI_PROTOCOL_SAS: - return sas_get_fabric_proto_ident(se_tpg); - case SCSI_PROTOCOL_FCP: - return fc_get_fabric_proto_ident(se_tpg); - case SCSI_PROTOCOL_ISCSI: - return iscsi_get_fabric_proto_ident(se_tpg); - default: - pr_err("Unknown tl_proto_id: 0x%02x, using" - " SAS emulation\n", tl_hba->tl_proto_id); - break; - } - - return sas_get_fabric_proto_ident(se_tpg); + return container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); } static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg) { - struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr; /* - * Return the passed NAA identifier for the SAS Target Port + * Return the passed NAA identifier for the Target Port */ - return &tl_tpg->tl_hba->tl_wwn_address[0]; + return &tl_tpg(se_tpg)->tl_hba->tl_wwn_address[0]; } static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg) { - struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr; /* * This Tag is used when forming SCSI Name identifier in EVPD=1 0x83 * to represent the SCSI Target Port. */ - return tl_tpg->tl_tpgt; -} - -static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg) -{ - return 1; -} - -static u32 tcm_loop_get_pr_transport_id( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, - int *format_code, - unsigned char *buf) -{ - struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr; - struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; - - switch (tl_hba->tl_proto_id) { - case SCSI_PROTOCOL_SAS: - return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg, - format_code, buf); - case SCSI_PROTOCOL_FCP: - return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, - format_code, buf); - case SCSI_PROTOCOL_ISCSI: - return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg, - format_code, buf); - default: - pr_err("Unknown tl_proto_id: 0x%02x, using" - " SAS emulation\n", tl_hba->tl_proto_id); - break; - } - - return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg, - format_code, buf); -} - -static u32 tcm_loop_get_pr_transport_id_len( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, - int *format_code) -{ - struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr; - struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; - - switch (tl_hba->tl_proto_id) { - case SCSI_PROTOCOL_SAS: - return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, - format_code); - case SCSI_PROTOCOL_FCP: - return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, - format_code); - case SCSI_PROTOCOL_ISCSI: - return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, - format_code); - default: - pr_err("Unknown tl_proto_id: 0x%02x, using" - " SAS emulation\n", tl_hba->tl_proto_id); - break; - } - - return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, - format_code); -} - -/* - * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above - * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations. - */ -static char *tcm_loop_parse_pr_out_transport_id( - struct se_portal_group *se_tpg, - const char *buf, - u32 *out_tid_len, - char **port_nexus_ptr) -{ - struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr; - struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; - - switch (tl_hba->tl_proto_id) { - case SCSI_PROTOCOL_SAS: - return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, - port_nexus_ptr); - case SCSI_PROTOCOL_FCP: - return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, - port_nexus_ptr); - case SCSI_PROTOCOL_ISCSI: - return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, - port_nexus_ptr); - default: - pr_err("Unknown tl_proto_id: 0x%02x, using" - " SAS emulation\n", tl_hba->tl_proto_id); - break; - } - - return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, - port_nexus_ptr); + return tl_tpg(se_tpg)->tl_tpgt; } /* @@ -703,30 +578,6 @@ static int tcm_loop_check_prot_fabric_only(struct se_portal_group *se_tpg) return tl_tpg->tl_fabric_prot_type; } -static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl( - struct se_portal_group *se_tpg) -{ - struct tcm_loop_nacl *tl_nacl; - - tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL); - if (!tl_nacl) { - pr_err("Unable to allocate struct tcm_loop_nacl\n"); - return NULL; - } - - return &tl_nacl->se_node_acl; -} - -static void tcm_loop_tpg_release_fabric_acl( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl) -{ - struct tcm_loop_nacl *tl_nacl = container_of(se_nacl, - struct tcm_loop_nacl, se_node_acl); - - kfree(tl_nacl); -} - static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg) { return 1; @@ -742,14 +593,6 @@ static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl) return; } -static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd) -{ - struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, - struct tcm_loop_cmd, tl_se_cmd); - - return tl_cmd->sc_cmd_tag; -} - static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd) { struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, @@ -902,7 +745,7 @@ static void tcm_loop_port_unlink( se_lun->unpacked_lun); if (!sd) { pr_err("Unable to locate struct scsi_device for %d:%d:" - "%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun); + "%llu\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun); return; } /* @@ -918,21 +761,20 @@ static void tcm_loop_port_unlink( /* End items for tcm_loop_port_cit */ -static ssize_t tcm_loop_tpg_attrib_show_fabric_prot_type( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_loop_tpg_attrib_fabric_prot_type_show( + struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); return sprintf(page, "%d\n", tl_tpg->tl_fabric_prot_type); } -static ssize_t tcm_loop_tpg_attrib_store_fabric_prot_type( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_loop_tpg_attrib_fabric_prot_type_store( + struct config_item *item, const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); unsigned long val; @@ -951,10 +793,10 @@ static ssize_t tcm_loop_tpg_attrib_store_fabric_prot_type( return count; } -TF_TPG_ATTRIB_ATTR(tcm_loop, fabric_prot_type, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(tcm_loop_tpg_attrib_, fabric_prot_type); static struct configfs_attribute *tcm_loop_tpg_attrib_attrs[] = { - &tcm_loop_tpg_attrib_fabric_prot_type.attr, + &tcm_loop_tpg_attrib_attr_fabric_prot_type, NULL, }; @@ -1000,7 +842,7 @@ static int tcm_loop_make_nexus( transport_free_session(tl_nexus->se_sess); goto out; } - /* Now, register the SAS I_T Nexus as active. */ + /* Now, register the I_T Nexus as active. */ transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl, tl_nexus->se_sess, tl_nexus); tl_tpg->tl_nexus = tl_nexus; @@ -1039,7 +881,7 @@ static int tcm_loop_drop_nexus( " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tpg->tl_hba), tl_nexus->se_sess->se_node_acl->initiatorname); /* - * Release the SCSI I_T Nexus to the emulated SAS Target Port + * Release the SCSI I_T Nexus to the emulated Target Port */ transport_deregister_session(tl_nexus->se_sess); tpg->tl_nexus = NULL; @@ -1049,10 +891,9 @@ static int tcm_loop_drop_nexus( /* End items for tcm_loop_nexus_cit */ -static ssize_t tcm_loop_tpg_show_nexus( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_loop_tpg_nexus_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); struct tcm_loop_nexus *tl_nexus; @@ -1068,11 +909,10 @@ static ssize_t tcm_loop_tpg_show_nexus( return ret; } -static ssize_t tcm_loop_tpg_store_nexus( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_loop_tpg_nexus_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; @@ -1147,12 +987,10 @@ check_newline: return count; } -TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR); - -static ssize_t tcm_loop_tpg_show_transport_status( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_loop_tpg_transport_status_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); const char *status = NULL; @@ -1175,11 +1013,10 @@ static ssize_t tcm_loop_tpg_show_transport_status( return ret; } -static ssize_t tcm_loop_tpg_store_transport_status( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_loop_tpg_transport_status_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); @@ -1189,16 +1026,22 @@ static ssize_t tcm_loop_tpg_store_transport_status( } if (!strncmp(page, "offline", 7)) { tl_tpg->tl_transport_status = TCM_TRANSPORT_OFFLINE; + if (tl_tpg->tl_nexus) { + struct se_session *tl_sess = tl_tpg->tl_nexus->se_sess; + + core_allocate_nexus_loss_ua(tl_sess->se_node_acl); + } return count; } return -EINVAL; } -TF_TPG_BASE_ATTR(tcm_loop, transport_status, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(tcm_loop_tpg_, nexus); +CONFIGFS_ATTR(tcm_loop_tpg_, transport_status); static struct configfs_attribute *tcm_loop_tpg_attrs[] = { - &tcm_loop_tpg_nexus.attr, - &tcm_loop_tpg_transport_status.attr, + &tcm_loop_tpg_attr_nexus, + &tcm_loop_tpg_attr_transport_status, NULL, }; @@ -1232,10 +1075,9 @@ static struct se_portal_group *tcm_loop_make_naa_tpg( tl_tpg->tl_hba = tl_hba; tl_tpg->tl_tpgt = tpgt; /* - * Register the tl_tpg as a emulated SAS TCM Target Endpoint + * Register the tl_tpg as a emulated TCM Target Endpoint */ - ret = core_tpg_register(&loop_ops, wwn, &tl_tpg->tl_se_tpg, tl_tpg, - TRANSPORT_TPG_TYPE_NORMAL); + ret = core_tpg_register(wwn, &tl_tpg->tl_se_tpg, tl_hba->tl_proto_id); if (ret < 0) return ERR_PTR(-ENOMEM); @@ -1258,11 +1100,11 @@ static void tcm_loop_drop_naa_tpg( tl_hba = tl_tpg->tl_hba; tpgt = tl_tpg->tl_tpgt; /* - * Release the I_T Nexus for the Virtual SAS link if present + * Release the I_T Nexus for the Virtual target link if present */ tcm_loop_drop_nexus(tl_tpg); /* - * Deregister the tl_tpg as a emulated SAS TCM Target Endpoint + * Deregister the tl_tpg as a emulated TCM Target Endpoint */ core_tpg_deregister(se_tpg); @@ -1355,8 +1197,9 @@ static void tcm_loop_drop_scsi_hba( struct tcm_loop_hba, tl_hba_wwn); pr_debug("TCM_Loop_ConfigFS: Deallocating emulated Target" - " SAS Address: %s at Linux/SCSI Host ID: %d\n", - tl_hba->tl_wwn_address, tl_hba->sh->host_no); + " %s Address: %s at Linux/SCSI Host ID: %d\n", + tcm_loop_dump_proto_id(tl_hba), tl_hba->tl_wwn_address, + tl_hba->sh->host_no); /* * Call device_unregister() on the original tl_hba->dev. * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will @@ -1366,17 +1209,15 @@ static void tcm_loop_drop_scsi_hba( } /* Start items for tcm_loop_cit */ -static ssize_t tcm_loop_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t tcm_loop_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "TCM Loopback Fabric module %s\n", TCM_LOOP_VERSION); } -TF_WWN_ATTR_RO(tcm_loop, version); +CONFIGFS_ATTR_RO(tcm_loop_wwn_, version); static struct configfs_attribute *tcm_loop_wwn_attrs[] = { - &tcm_loop_wwn_version.attr, + &tcm_loop_wwn_attr_version, NULL, }; @@ -1386,13 +1227,8 @@ static const struct target_core_fabric_ops loop_ops = { .module = THIS_MODULE, .name = "loopback", .get_fabric_name = tcm_loop_get_fabric_name, - .get_fabric_proto_ident = tcm_loop_get_fabric_proto_ident, .tpg_get_wwn = tcm_loop_get_endpoint_wwn, .tpg_get_tag = tcm_loop_get_tag, - .tpg_get_default_depth = tcm_loop_get_default_depth, - .tpg_get_pr_transport_id = tcm_loop_get_pr_transport_id, - .tpg_get_pr_transport_id_len = tcm_loop_get_pr_transport_id_len, - .tpg_parse_pr_out_transport_id = tcm_loop_parse_pr_out_transport_id, .tpg_check_demo_mode = tcm_loop_check_demo_mode, .tpg_check_demo_mode_cache = tcm_loop_check_demo_mode_cache, .tpg_check_demo_mode_write_protect = @@ -1400,8 +1236,6 @@ static const struct target_core_fabric_ops loop_ops = { .tpg_check_prod_mode_write_protect = tcm_loop_check_prod_mode_write_protect, .tpg_check_prot_fabric_only = tcm_loop_check_prot_fabric_only, - .tpg_alloc_fabric_acl = tcm_loop_tpg_alloc_fabric_acl, - .tpg_release_fabric_acl = tcm_loop_tpg_release_fabric_acl, .tpg_get_inst_index = tcm_loop_get_inst_index, .check_stop_free = tcm_loop_check_stop_free, .release_cmd = tcm_loop_release_cmd, @@ -1411,7 +1245,6 @@ static const struct target_core_fabric_ops loop_ops = { .write_pending = tcm_loop_write_pending, .write_pending_status = tcm_loop_write_pending_status, .set_default_node_attributes = tcm_loop_set_default_node_attributes, - .get_task_tag = tcm_loop_get_task_tag, .get_cmd_state = tcm_loop_get_cmd_state, .queue_data_in = tcm_loop_queue_data_in, .queue_status = tcm_loop_queue_status, diff --git a/kernel/drivers/target/loopback/tcm_loop.h b/kernel/drivers/target/loopback/tcm_loop.h index 1e72ff77c..434646209 100644 --- a/kernel/drivers/target/loopback/tcm_loop.h +++ b/kernel/drivers/target/loopback/tcm_loop.h @@ -2,11 +2,6 @@ #define TL_WWN_ADDR_LEN 256 #define TL_TPGS_PER_HBA 32 -/* - * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len - */ -#define TL_SCSI_MAX_CMD_LEN 32 - struct tcm_loop_cmd { /* State of Linux/SCSI CDB+Data descriptor */ u32 sc_cmd_state; @@ -33,10 +28,6 @@ struct tcm_loop_nexus { struct se_session *se_sess; }; -struct tcm_loop_nacl { - struct se_node_acl se_node_acl; -}; - #define TCM_TRANSPORT_ONLINE 0 #define TCM_TRANSPORT_OFFLINE 1 diff --git a/kernel/drivers/target/sbp/sbp_target.c b/kernel/drivers/target/sbp/sbp_target.c index 18b0f9703..35f7d31b2 100644 --- a/kernel/drivers/target/sbp/sbp_target.c +++ b/kernel/drivers/target/sbp/sbp_target.c @@ -30,14 +30,11 @@ #include <linux/ctype.h> #include <linux/firewire.h> #include <linux/firewire-constants.h> -#include <scsi/scsi.h> +#include <scsi/scsi_proto.h> #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_fabric_configfs.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include <asm/unaligned.h> #include "sbp_target.h" @@ -109,13 +106,13 @@ static struct sbp_session *sbp_session_find_by_guid( } static struct sbp_login_descriptor *sbp_login_find_by_lun( - struct sbp_session *session, struct se_lun *lun) + struct sbp_session *session, u32 unpacked_lun) { struct sbp_login_descriptor *login, *found = NULL; spin_lock_bh(&session->lock); list_for_each_entry(login, &session->login_list, link) { - if (login->lun == lun) + if (login->login_lun == unpacked_lun) found = login; } spin_unlock_bh(&session->lock); @@ -125,7 +122,7 @@ static struct sbp_login_descriptor *sbp_login_find_by_lun( static int sbp_login_count_all_by_lun( struct sbp_tpg *tpg, - struct se_lun *lun, + u32 unpacked_lun, int exclusive) { struct se_session *se_sess; @@ -139,7 +136,7 @@ static int sbp_login_count_all_by_lun( spin_lock_bh(&sess->lock); list_for_each_entry(login, &sess->login_list, link) { - if (login->lun != lun) + if (login->login_lun != unpacked_lun) continue; if (!exclusive || login->exclusive) @@ -175,23 +172,23 @@ static struct sbp_login_descriptor *sbp_login_find_by_id( return found; } -static struct se_lun *sbp_get_lun_from_tpg(struct sbp_tpg *tpg, int lun) +static u32 sbp_get_lun_from_tpg(struct sbp_tpg *tpg, u32 login_lun, int *err) { struct se_portal_group *se_tpg = &tpg->se_tpg; struct se_lun *se_lun; - if (lun >= TRANSPORT_MAX_LUNS_PER_TPG) - return ERR_PTR(-EINVAL); - - spin_lock(&se_tpg->tpg_lun_lock); - se_lun = se_tpg->tpg_lun_list[lun]; - - if (se_lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) - se_lun = ERR_PTR(-ENODEV); - - spin_unlock(&se_tpg->tpg_lun_lock); + rcu_read_lock(); + hlist_for_each_entry_rcu(se_lun, &se_tpg->tpg_lun_hlist, link) { + if (se_lun->unpacked_lun == login_lun) { + rcu_read_unlock(); + *err = 0; + return login_lun; + } + } + rcu_read_unlock(); - return se_lun; + *err = -ENODEV; + return login_lun; } static struct sbp_session *sbp_session_create( @@ -295,17 +292,16 @@ static void sbp_management_request_login( { struct sbp_tport *tport = agent->tport; struct sbp_tpg *tpg = tport->tpg; - struct se_lun *se_lun; - int ret; - u64 guid; struct sbp_session *sess; struct sbp_login_descriptor *login; struct sbp_login_response_block *response; - int login_response_len; + u64 guid; + u32 unpacked_lun; + int login_response_len, ret; - se_lun = sbp_get_lun_from_tpg(tpg, - LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc))); - if (IS_ERR(se_lun)) { + unpacked_lun = sbp_get_lun_from_tpg(tpg, + LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)), &ret); + if (ret) { pr_notice("login to unknown LUN: %d\n", LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc))); @@ -326,11 +322,11 @@ static void sbp_management_request_login( } pr_notice("mgt_agent LOGIN to LUN %d from %016llx\n", - se_lun->unpacked_lun, guid); + unpacked_lun, guid); sess = sbp_session_find_by_guid(tpg, guid); if (sess) { - login = sbp_login_find_by_lun(sess, se_lun); + login = sbp_login_find_by_lun(sess, unpacked_lun); if (login) { pr_notice("initiator already logged-in\n"); @@ -358,7 +354,7 @@ static void sbp_management_request_login( * reject with access_denied if any logins present */ if (LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc)) && - sbp_login_count_all_by_lun(tpg, se_lun, 0)) { + sbp_login_count_all_by_lun(tpg, unpacked_lun, 0)) { pr_warn("refusing exclusive login with other active logins\n"); req->status.status = cpu_to_be32( @@ -371,7 +367,7 @@ static void sbp_management_request_login( * check exclusive bit in any existing login descriptor * reject with access_denied if any exclusive logins present */ - if (sbp_login_count_all_by_lun(tpg, se_lun, 1)) { + if (sbp_login_count_all_by_lun(tpg, unpacked_lun, 1)) { pr_warn("refusing login while another exclusive login present\n"); req->status.status = cpu_to_be32( @@ -384,7 +380,7 @@ static void sbp_management_request_login( * check we haven't exceeded the number of allowed logins * reject with resources_unavailable if we have */ - if (sbp_login_count_all_by_lun(tpg, se_lun, 0) >= + if (sbp_login_count_all_by_lun(tpg, unpacked_lun, 0) >= tport->max_logins_per_lun) { pr_warn("max number of logins reached\n"); @@ -440,7 +436,7 @@ static void sbp_management_request_login( } login->sess = sess; - login->lun = se_lun; + login->login_lun = unpacked_lun; login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo); login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc)); login->login_id = atomic_inc_return(&login_id); @@ -602,7 +598,7 @@ static void sbp_management_request_logout( } pr_info("mgt_agent LOGOUT from LUN %d session %d\n", - login->lun->unpacked_lun, login->login_id); + login->login_lun, login->login_id); if (req->node_addr != login->sess->node_id) { pr_warn("logout from different node ID\n"); @@ -1228,12 +1224,14 @@ static void sbp_handle_command(struct sbp_target_request *req) goto err; } - unpacked_lun = req->login->lun->unpacked_lun; + unpacked_lun = req->login->login_lun; sbp_calc_data_length_direction(req, &data_length, &data_dir); pr_debug("sbp_handle_command ORB:0x%llx unpacked_lun:%d data_len:%d data_dir:%d\n", req->orb_pointer, unpacked_lun, data_length, data_dir); + /* only used for printk until we do TMRs */ + req->se_cmd.tag = req->orb_pointer; if (target_submit_cmd(&req->se_cmd, sess->se_sess, req->cmd_buf, req->sense_buf, unpacked_lun, data_length, TCM_SIMPLE_TAG, data_dir, 0)) @@ -1707,33 +1705,6 @@ static u16 sbp_get_tag(struct se_portal_group *se_tpg) return tpg->tport_tpgt; } -static u32 sbp_get_default_depth(struct se_portal_group *se_tpg) -{ - return 1; -} - -static struct se_node_acl *sbp_alloc_fabric_acl(struct se_portal_group *se_tpg) -{ - struct sbp_nacl *nacl; - - nacl = kzalloc(sizeof(struct sbp_nacl), GFP_KERNEL); - if (!nacl) { - pr_err("Unable to allocate struct sbp_nacl\n"); - return NULL; - } - - return &nacl->se_node_acl; -} - -static void sbp_release_fabric_acl( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl) -{ - struct sbp_nacl *nacl = - container_of(se_nacl, struct sbp_nacl, se_node_acl); - kfree(nacl); -} - static u32 sbp_tpg_get_inst_index(struct se_portal_group *se_tpg) { return 1; @@ -1795,15 +1766,6 @@ static void sbp_set_default_node_attrs(struct se_node_acl *nacl) return; } -static u32 sbp_get_task_tag(struct se_cmd *se_cmd) -{ - struct sbp_target_request *req = container_of(se_cmd, - struct sbp_target_request, se_cmd); - - /* only used for printk until we do TMRs */ - return (u32)req->orb_pointer; -} - static int sbp_get_cmd_state(struct se_cmd *se_cmd) { return 0; @@ -1859,106 +1821,23 @@ static int sbp_check_stop_free(struct se_cmd *se_cmd) return 1; } -/* - * Handlers for Serial Bus Protocol 2/3 (SBP-2 / SBP-3) - */ -static u8 sbp_get_fabric_proto_ident(struct se_portal_group *se_tpg) -{ - /* - * Return a IEEE 1394 SCSI Protocol identifier for loopback operations - * This is defined in section 7.5.1 Table 362 in spc4r17 - */ - return SCSI_PROTOCOL_SBP; -} - -static u32 sbp_get_pr_transport_id( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, - int *format_code, - unsigned char *buf) -{ - int ret; - - /* - * Set PROTOCOL IDENTIFIER to 3h for SBP - */ - buf[0] = SCSI_PROTOCOL_SBP; - /* - * From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI - * over IEEE 1394 - */ - ret = hex2bin(&buf[8], se_nacl->initiatorname, 8); - if (ret < 0) - pr_debug("sbp transport_id: invalid hex string\n"); - - /* - * The IEEE 1394 Transport ID is a hardcoded 24-byte length - */ - return 24; -} - -static u32 sbp_get_pr_transport_id_len( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, - int *format_code) -{ - *format_code = 0; - /* - * From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI - * over IEEE 1394 - * - * The SBP Transport ID is a hardcoded 24-byte length - */ - return 24; -} - -/* - * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above - * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations. - */ -static char *sbp_parse_pr_out_transport_id( - struct se_portal_group *se_tpg, - const char *buf, - u32 *out_tid_len, - char **port_nexus_ptr) -{ - /* - * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.4 TransportID - * for initiator ports using SCSI over SBP Serial SCSI Protocol - * - * The TransportID for a IEEE 1394 Initiator Port is of fixed size of - * 24 bytes, and IEEE 1394 does not contain a I_T nexus identifier, - * so we return the **port_nexus_ptr set to NULL. - */ - *port_nexus_ptr = NULL; - *out_tid_len = 24; - - return (char *)&buf[8]; -} - static int sbp_count_se_tpg_luns(struct se_portal_group *tpg) { - int i, count = 0; - - spin_lock(&tpg->tpg_lun_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - struct se_lun *se_lun = tpg->tpg_lun_list[i]; - - if (se_lun->lun_status == TRANSPORT_LUN_STATUS_FREE) - continue; + struct se_lun *lun; + int count = 0; + rcu_read_lock(); + hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link) count++; - } - spin_unlock(&tpg->tpg_lun_lock); + rcu_read_unlock(); return count; } static int sbp_update_unit_directory(struct sbp_tport *tport) { - int num_luns, num_entries, idx = 0, mgt_agt_addr, ret, i; + struct se_lun *lun; + int num_luns, num_entries, idx = 0, mgt_agt_addr, ret; u32 *data; if (tport->unit_directory.data) { @@ -2020,28 +1899,23 @@ static int sbp_update_unit_directory(struct sbp_tport *tport) /* unit unique ID (leaf is just after LUNs) */ data[idx++] = 0x8d000000 | (num_luns + 1); - spin_lock(&tport->tpg->se_tpg.tpg_lun_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - struct se_lun *se_lun = tport->tpg->se_tpg.tpg_lun_list[i]; + rcu_read_lock(); + hlist_for_each_entry_rcu(lun, &tport->tpg->se_tpg.tpg_lun_hlist, link) { struct se_device *dev; int type; - - if (se_lun->lun_status == TRANSPORT_LUN_STATUS_FREE) - continue; - - spin_unlock(&tport->tpg->se_tpg.tpg_lun_lock); - - dev = se_lun->lun_se_dev; + /* + * rcu_dereference_raw protected by se_lun->lun_group symlink + * reference to se_device->dev_group. + */ + dev = rcu_dereference_raw(lun->lun_se_dev); type = dev->transport->get_device_type(dev); /* logical_unit_number */ data[idx++] = 0x14000000 | ((type << 16) & 0x1f0000) | - (se_lun->unpacked_lun & 0xffff); - - spin_lock(&tport->tpg->se_tpg.tpg_lun_lock); + (lun->unpacked_lun & 0xffff); } - spin_unlock(&tport->tpg->se_tpg.tpg_lun_lock); + rcu_read_unlock(); /* unit unique ID leaf */ data[idx++] = 2 << 16; @@ -2100,48 +1974,13 @@ static ssize_t sbp_format_wwn(char *buf, size_t len, u64 wwn) return snprintf(buf, len, "%016llx", wwn); } -static struct se_node_acl *sbp_make_nodeacl( - struct se_portal_group *se_tpg, - struct config_group *group, - const char *name) +static int sbp_init_nodeacl(struct se_node_acl *se_nacl, const char *name) { - struct se_node_acl *se_nacl, *se_nacl_new; - struct sbp_nacl *nacl; u64 guid = 0; - u32 nexus_depth = 1; if (sbp_parse_wwn(name, &guid) < 0) - return ERR_PTR(-EINVAL); - - se_nacl_new = sbp_alloc_fabric_acl(se_tpg); - if (!se_nacl_new) - return ERR_PTR(-ENOMEM); - - /* - * se_nacl_new may be released by core_tpg_add_initiator_node_acl() - * when converting a NodeACL from demo mode -> explict - */ - se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, - name, nexus_depth); - if (IS_ERR(se_nacl)) { - sbp_release_fabric_acl(se_tpg, se_nacl_new); - return se_nacl; - } - - nacl = container_of(se_nacl, struct sbp_nacl, se_node_acl); - nacl->guid = guid; - sbp_format_wwn(nacl->iport_name, SBP_NAMELEN, guid); - - return se_nacl; -} - -static void sbp_drop_nodeacl(struct se_node_acl *se_acl) -{ - struct sbp_nacl *nacl = - container_of(se_acl, struct sbp_nacl, se_node_acl); - - core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1); - kfree(nacl); + return -EINVAL; + return 0; } static int sbp_post_link_lun( @@ -2214,8 +2053,7 @@ static struct se_portal_group *sbp_make_tpg( goto out_free_tpg; } - ret = core_tpg_register(&sbp_ops, wwn, &tpg->se_tpg, tpg, - TRANSPORT_TPG_TYPE_NORMAL); + ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_SBP); if (ret < 0) goto out_unreg_mgt_agt; @@ -2271,24 +2109,21 @@ static void sbp_drop_tport(struct se_wwn *wwn) kfree(tport); } -static ssize_t sbp_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t sbp_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "FireWire SBP fabric module %s\n", SBP_VERSION); } -TF_WWN_ATTR_RO(sbp, version); +CONFIGFS_ATTR_RO(sbp_wwn_, version); static struct configfs_attribute *sbp_wwn_attrs[] = { - &sbp_wwn_version.attr, + &sbp_wwn_attr_version, NULL, }; -static ssize_t sbp_tpg_show_directory_id( - struct se_portal_group *se_tpg, - char *page) +static ssize_t sbp_tpg_directory_id_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; @@ -2298,11 +2133,10 @@ static ssize_t sbp_tpg_show_directory_id( return sprintf(page, "%06x\n", tport->directory_id); } -static ssize_t sbp_tpg_store_directory_id( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_directory_id_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2326,20 +2160,18 @@ static ssize_t sbp_tpg_store_directory_id( return count; } -static ssize_t sbp_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t sbp_tpg_enable_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->enable); } -static ssize_t sbp_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2379,29 +2211,28 @@ static ssize_t sbp_tpg_store_enable( return count; } -TF_TPG_BASE_ATTR(sbp, directory_id, S_IRUGO | S_IWUSR); -TF_TPG_BASE_ATTR(sbp, enable, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(sbp_tpg_, directory_id); +CONFIGFS_ATTR(sbp_tpg_, enable); static struct configfs_attribute *sbp_tpg_base_attrs[] = { - &sbp_tpg_directory_id.attr, - &sbp_tpg_enable.attr, + &sbp_tpg_attr_directory_id, + &sbp_tpg_attr_enable, NULL, }; -static ssize_t sbp_tpg_attrib_show_mgt_orb_timeout( - struct se_portal_group *se_tpg, +static ssize_t sbp_tpg_attrib_mgt_orb_timeout_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->mgt_orb_timeout); } -static ssize_t sbp_tpg_attrib_store_mgt_orb_timeout( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_attrib_mgt_orb_timeout_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2424,20 +2255,19 @@ static ssize_t sbp_tpg_attrib_store_mgt_orb_timeout( return count; } -static ssize_t sbp_tpg_attrib_show_max_reconnect_timeout( - struct se_portal_group *se_tpg, +static ssize_t sbp_tpg_attrib_max_reconnect_timeout_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->max_reconnect_timeout); } -static ssize_t sbp_tpg_attrib_store_max_reconnect_timeout( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_attrib_max_reconnect_timeout_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2460,20 +2290,19 @@ static ssize_t sbp_tpg_attrib_store_max_reconnect_timeout( return count; } -static ssize_t sbp_tpg_attrib_show_max_logins_per_lun( - struct se_portal_group *se_tpg, +static ssize_t sbp_tpg_attrib_max_logins_per_lun_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->max_logins_per_lun); } -static ssize_t sbp_tpg_attrib_store_max_logins_per_lun( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_attrib_max_logins_per_lun_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2490,14 +2319,14 @@ static ssize_t sbp_tpg_attrib_store_max_logins_per_lun( return count; } -TF_TPG_ATTRIB_ATTR(sbp, mgt_orb_timeout, S_IRUGO | S_IWUSR); -TF_TPG_ATTRIB_ATTR(sbp, max_reconnect_timeout, S_IRUGO | S_IWUSR); -TF_TPG_ATTRIB_ATTR(sbp, max_logins_per_lun, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(sbp_tpg_attrib_, mgt_orb_timeout); +CONFIGFS_ATTR(sbp_tpg_attrib_, max_reconnect_timeout); +CONFIGFS_ATTR(sbp_tpg_attrib_, max_logins_per_lun); static struct configfs_attribute *sbp_tpg_attrib_attrs[] = { - &sbp_tpg_attrib_mgt_orb_timeout.attr, - &sbp_tpg_attrib_max_reconnect_timeout.attr, - &sbp_tpg_attrib_max_logins_per_lun.attr, + &sbp_tpg_attrib_attr_mgt_orb_timeout, + &sbp_tpg_attrib_attr_max_reconnect_timeout, + &sbp_tpg_attrib_attr_max_logins_per_lun, NULL, }; @@ -2505,19 +2334,12 @@ static const struct target_core_fabric_ops sbp_ops = { .module = THIS_MODULE, .name = "sbp", .get_fabric_name = sbp_get_fabric_name, - .get_fabric_proto_ident = sbp_get_fabric_proto_ident, .tpg_get_wwn = sbp_get_fabric_wwn, .tpg_get_tag = sbp_get_tag, - .tpg_get_default_depth = sbp_get_default_depth, - .tpg_get_pr_transport_id = sbp_get_pr_transport_id, - .tpg_get_pr_transport_id_len = sbp_get_pr_transport_id_len, - .tpg_parse_pr_out_transport_id = sbp_parse_pr_out_transport_id, .tpg_check_demo_mode = sbp_check_true, .tpg_check_demo_mode_cache = sbp_check_true, .tpg_check_demo_mode_write_protect = sbp_check_false, .tpg_check_prod_mode_write_protect = sbp_check_false, - .tpg_alloc_fabric_acl = sbp_alloc_fabric_acl, - .tpg_release_fabric_acl = sbp_release_fabric_acl, .tpg_get_inst_index = sbp_tpg_get_inst_index, .release_cmd = sbp_release_cmd, .shutdown_session = sbp_shutdown_session, @@ -2526,7 +2348,6 @@ static const struct target_core_fabric_ops sbp_ops = { .write_pending = sbp_write_pending, .write_pending_status = sbp_write_pending_status, .set_default_node_attributes = sbp_set_default_node_attrs, - .get_task_tag = sbp_get_task_tag, .get_cmd_state = sbp_get_cmd_state, .queue_data_in = sbp_queue_data_in, .queue_status = sbp_queue_status, @@ -2542,8 +2363,7 @@ static const struct target_core_fabric_ops sbp_ops = { .fabric_pre_unlink = sbp_pre_unlink_lun, .fabric_make_np = NULL, .fabric_drop_np = NULL, - .fabric_make_nodeacl = sbp_make_nodeacl, - .fabric_drop_nodeacl = sbp_drop_nodeacl, + .fabric_init_nodeacl = sbp_init_nodeacl, .tfc_wwn_attrs = sbp_wwn_attrs, .tfc_tpg_base_attrs = sbp_tpg_base_attrs, diff --git a/kernel/drivers/target/sbp/sbp_target.h b/kernel/drivers/target/sbp/sbp_target.h index 6d0d74a2c..73bcb1208 100644 --- a/kernel/drivers/target/sbp/sbp_target.h +++ b/kernel/drivers/target/sbp/sbp_target.h @@ -125,7 +125,7 @@ struct sbp_login_descriptor { struct sbp_session *sess; struct list_head link; - struct se_lun *lun; + u32 login_lun; u64 status_fifo_addr; int exclusive; @@ -151,15 +151,6 @@ struct sbp_session { u64 reconnect_expires; }; -struct sbp_nacl { - /* Initiator EUI-64 */ - u64 guid; - /* ASCII formatted GUID for SBP Initiator port */ - char iport_name[SBP_NAMELEN]; - /* Returned by sbp_make_nodeacl() */ - struct se_node_acl se_node_acl; -}; - struct sbp_tpg { /* Target portal group tag for TCM */ u16 tport_tpgt; diff --git a/kernel/drivers/target/target_core_alua.c b/kernel/drivers/target/target_core_alua.c index 4f8d4d459..49aba4a31 100644 --- a/kernel/drivers/target/target_core_alua.c +++ b/kernel/drivers/target/target_core_alua.c @@ -28,14 +28,12 @@ #include <linux/configfs.h> #include <linux/export.h> #include <linux/file.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_proto.h> #include <asm/unaligned.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_alua.h" @@ -44,11 +42,13 @@ static sense_reason_t core_alua_check_transition(int state, int valid, int *primary); static int core_alua_set_tg_pt_secondary_state( - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, - struct se_port *port, int explicit, int offline); + struct se_lun *lun, int explicit, int offline); static char *core_alua_dump_state(int state); +static void __target_attach_tg_pt_gp(struct se_lun *lun, + struct t10_alua_tg_pt_gp *tg_pt_gp); + static u16 alua_lu_gps_counter; static u32 alua_lu_gps_count; @@ -146,9 +146,8 @@ sense_reason_t target_emulate_report_target_port_groups(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; - struct se_port *port; struct t10_alua_tg_pt_gp *tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; + struct se_lun *lun; unsigned char *buf; u32 rd_len = 0, off; int ext_hdr = (cmd->t_task_cdb[1] & 0x20); @@ -223,9 +222,8 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) rd_len += 8; spin_lock(&tg_pt_gp->tg_pt_gp_lock); - list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list, - tg_pt_gp_mem_list) { - port = tg_pt_gp_mem->tg_pt; + list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list, + lun_tg_pt_gp_link) { /* * Start Target Port descriptor format * @@ -235,8 +233,8 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) /* * Set RELATIVE TARGET PORT IDENTIFIER */ - buf[off++] = ((port->sep_rtpi >> 8) & 0xff); - buf[off++] = (port->sep_rtpi & 0xff); + buf[off++] = ((lun->lun_rtpi >> 8) & 0xff); + buf[off++] = (lun->lun_rtpi & 0xff); rd_len += 4; } spin_unlock(&tg_pt_gp->tg_pt_gp_lock); @@ -260,15 +258,11 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) * this CDB was received upon to determine this value individually * for ALUA target port group. */ - port = cmd->se_lun->lun_sep; - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (tg_pt_gp_mem) { - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; - if (tg_pt_gp) - buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs; - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - } + spin_lock(&cmd->se_lun->lun_tg_pt_gp_lock); + tg_pt_gp = cmd->se_lun->lun_tg_pt_gp; + if (tg_pt_gp) + buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs; + spin_unlock(&cmd->se_lun->lun_tg_pt_gp_lock); } transport_kunmap_data_sg(cmd); @@ -285,10 +279,9 @@ sense_reason_t target_emulate_set_target_port_groups(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; - struct se_port *port, *l_port = cmd->se_lun->lun_sep; + struct se_lun *l_lun = cmd->se_lun; struct se_node_acl *nacl = cmd->se_sess->se_node_acl; struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *l_tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *l_tg_pt_gp_mem; unsigned char *buf; unsigned char *ptr; sense_reason_t rc = TCM_NO_SENSE; @@ -296,9 +289,6 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) int alua_access_state, primary = 0, valid_states; u16 tg_pt_id, rtpi; - if (!l_port) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - if (cmd->data_length < 4) { pr_warn("SET TARGET PORT GROUPS parameter list length %u too" " small\n", cmd->data_length); @@ -313,29 +303,24 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) * Determine if explicit ALUA via SET_TARGET_PORT_GROUPS is allowed * for the local tg_pt_gp. */ - l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem; - if (!l_tg_pt_gp_mem) { - pr_err("Unable to access l_port->sep_alua_tg_pt_gp_mem\n"); - rc = TCM_UNSUPPORTED_SCSI_OPCODE; - goto out; - } - spin_lock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock); - l_tg_pt_gp = l_tg_pt_gp_mem->tg_pt_gp; + spin_lock(&l_lun->lun_tg_pt_gp_lock); + l_tg_pt_gp = l_lun->lun_tg_pt_gp; if (!l_tg_pt_gp) { - spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock); - pr_err("Unable to access *l_tg_pt_gp_mem->tg_pt_gp\n"); + spin_unlock(&l_lun->lun_tg_pt_gp_lock); + pr_err("Unable to access l_lun->tg_pt_gp\n"); rc = TCM_UNSUPPORTED_SCSI_OPCODE; goto out; } - spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock); if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)) { + spin_unlock(&l_lun->lun_tg_pt_gp_lock); pr_debug("Unable to process SET_TARGET_PORT_GROUPS" " while TPGS_EXPLICIT_ALUA is disabled\n"); rc = TCM_UNSUPPORTED_SCSI_OPCODE; goto out; } valid_states = l_tg_pt_gp->tg_pt_gp_alua_supported_states; + spin_unlock(&l_lun->lun_tg_pt_gp_lock); ptr = &buf[4]; /* Skip over RESERVED area in header */ @@ -397,7 +382,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) spin_unlock(&dev->t10_alua.tg_pt_gps_lock); if (!core_alua_do_port_transition(tg_pt_gp, - dev, l_port, nacl, + dev, l_lun, nacl, alua_access_state, 1)) found = true; @@ -407,6 +392,8 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) } spin_unlock(&dev->t10_alua.tg_pt_gps_lock); } else { + struct se_lun *lun; + /* * Extract the RELATIVE TARGET PORT IDENTIFIER to identify * the Target Port in question for the the incoming @@ -418,17 +405,16 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) * for the struct se_device storage object. */ spin_lock(&dev->se_port_lock); - list_for_each_entry(port, &dev->dev_sep_list, - sep_list) { - if (port->sep_rtpi != rtpi) + list_for_each_entry(lun, &dev->dev_sep_list, + lun_dev_link) { + if (lun->lun_rtpi != rtpi) continue; - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - + // XXX: racy unlock spin_unlock(&dev->se_port_lock); if (!core_alua_set_tg_pt_secondary_state( - tg_pt_gp_mem, port, 1, 1)) + lun, 1, 1)) found = true; spin_lock(&dev->se_port_lock); @@ -697,9 +683,7 @@ target_alua_state_check(struct se_cmd *cmd) struct se_device *dev = cmd->se_dev; unsigned char *cdb = cmd->t_task_cdb; struct se_lun *lun = cmd->se_lun; - struct se_port *port = lun->lun_sep; struct t10_alua_tg_pt_gp *tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; int out_alua_state, nonop_delay_msecs; if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE) @@ -707,33 +691,27 @@ target_alua_state_check(struct se_cmd *cmd) if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return 0; - if (!port) - return 0; /* * First, check for a struct se_port specific secondary ALUA target port * access state: OFFLINE */ - if (atomic_read(&port->sep_tg_pt_secondary_offline)) { + if (atomic_read(&lun->lun_tg_pt_secondary_offline)) { pr_debug("ALUA: Got secondary offline status for local" " target port\n"); set_ascq(cmd, ASCQ_04H_ALUA_OFFLINE); return TCM_CHECK_CONDITION_NOT_READY; } - /* - * Second, obtain the struct t10_alua_tg_pt_gp_member pointer to the - * ALUA target port group, to obtain current ALUA access state. - * Otherwise look for the underlying struct se_device association with - * a ALUA logical unit group. - */ - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) + + if (!lun->lun_tg_pt_gp) return 0; - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; out_alua_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state); nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs; - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + + // XXX: keeps using tg_pt_gp witout reference after unlock + spin_unlock(&lun->lun_tg_pt_gp_lock); /* * Process ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED in a separate conditional * statement so the compiler knows explicitly to check this case first. @@ -765,7 +743,7 @@ target_alua_state_check(struct se_cmd *cmd) break; /* * OFFLINE is a secondary ALUA target port group access state, that is - * handled above with struct se_port->sep_tg_pt_secondary_offline=1 + * handled above with struct se_lun->lun_tg_pt_secondary_offline=1 */ case ALUA_ACCESS_STATE_OFFLINE: default: @@ -907,10 +885,6 @@ int core_alua_check_nonop_delay( } EXPORT_SYMBOL(core_alua_check_nonop_delay); -/* - * Called with tg_pt_gp->tg_pt_gp_md_mutex or tg_pt_gp_mem->sep_tg_pt_md_mutex - * - */ static int core_alua_write_tpg_metadata( const char *path, unsigned char *md_buf, @@ -966,22 +940,15 @@ static int core_alua_update_tpg_primary_metadata( return rc; } -static void core_alua_do_transition_tg_pt_work(struct work_struct *work) +static void core_alua_queue_state_change_ua(struct t10_alua_tg_pt_gp *tg_pt_gp) { - struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work, - struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work); - struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; struct se_dev_entry *se_deve; + struct se_lun *lun; struct se_lun_acl *lacl; - struct se_port *port; - struct t10_alua_tg_pt_gp_member *mem; - bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status == - ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG); spin_lock(&tg_pt_gp->tg_pt_gp_lock); - list_for_each_entry(mem, &tg_pt_gp->tg_pt_gp_mem_list, - tg_pt_gp_mem_list) { - port = mem->tg_pt; + list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list, + lun_tg_pt_gp_link) { /* * After an implicit target port asymmetric access state * change, a device server shall establish a unit attention @@ -996,38 +963,58 @@ static void core_alua_do_transition_tg_pt_work(struct work_struct *work) * every I_T nexus other than the I_T nexus on which the SET * TARGET PORT GROUPS command */ - atomic_inc_mb(&mem->tg_pt_gp_mem_ref_cnt); + if (!percpu_ref_tryget_live(&lun->lun_ref)) + continue; spin_unlock(&tg_pt_gp->tg_pt_gp_lock); - spin_lock_bh(&port->sep_alua_lock); - list_for_each_entry(se_deve, &port->sep_alua_list, - alua_port_list) { - lacl = se_deve->se_lun_acl; + spin_lock(&lun->lun_deve_lock); + list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link) { + lacl = rcu_dereference_check(se_deve->se_lun_acl, + lockdep_is_held(&lun->lun_deve_lock)); + /* - * se_deve->se_lun_acl pointer may be NULL for a - * entry created without explicit Node+MappedLUN ACLs + * spc4r37 p.242: + * After an explicit target port asymmetric access + * state change, a device server shall establish a + * unit attention condition with the additional sense + * code set to ASYMMETRIC ACCESS STATE CHANGED for + * the initiator port associated with every I_T nexus + * other than the I_T nexus on which the SET TARGET + * PORT GROUPS command was received. */ - if (!lacl) - continue; - if ((tg_pt_gp->tg_pt_gp_alua_access_status == ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) && - (tg_pt_gp->tg_pt_gp_alua_nacl != NULL) && - (tg_pt_gp->tg_pt_gp_alua_nacl == lacl->se_lun_nacl) && - (tg_pt_gp->tg_pt_gp_alua_port != NULL) && - (tg_pt_gp->tg_pt_gp_alua_port == port)) + (tg_pt_gp->tg_pt_gp_alua_lun != NULL) && + (tg_pt_gp->tg_pt_gp_alua_lun == lun)) continue; - core_scsi3_ua_allocate(lacl->se_lun_nacl, - se_deve->mapped_lun, 0x2A, + /* + * se_deve->se_lun_acl pointer may be NULL for a + * entry created without explicit Node+MappedLUN ACLs + */ + if (lacl && (tg_pt_gp->tg_pt_gp_alua_nacl != NULL) && + (tg_pt_gp->tg_pt_gp_alua_nacl == lacl->se_lun_nacl)) + continue; + + core_scsi3_ua_allocate(se_deve, 0x2A, ASCQ_2AH_ASYMMETRIC_ACCESS_STATE_CHANGED); } - spin_unlock_bh(&port->sep_alua_lock); + spin_unlock(&lun->lun_deve_lock); spin_lock(&tg_pt_gp->tg_pt_gp_lock); - atomic_dec_mb(&mem->tg_pt_gp_mem_ref_cnt); + percpu_ref_put(&lun->lun_ref); } spin_unlock(&tg_pt_gp->tg_pt_gp_lock); +} + +static void core_alua_do_transition_tg_pt_work(struct work_struct *work) +{ + struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work, + struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work); + struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; + bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status == + ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG); + /* * Update the ALUA metadata buf that has been allocated in * core_alua_do_port_transition(), this metadata will be written @@ -1057,6 +1044,9 @@ static void core_alua_do_transition_tg_pt_work(struct work_struct *work) tg_pt_gp->tg_pt_gp_id, core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_previous_state), core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_pending_state)); + + core_alua_queue_state_change_ua(tg_pt_gp); + spin_lock(&dev->t10_alua.tg_pt_gps_lock); atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt); spin_unlock(&dev->t10_alua.tg_pt_gps_lock); @@ -1109,6 +1099,8 @@ static int core_alua_do_transition_tg_pt( ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG : ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA; + core_alua_queue_state_change_ua(tg_pt_gp); + /* * Check for the optional ALUA primary state transition delay */ @@ -1143,7 +1135,7 @@ static int core_alua_do_transition_tg_pt( int core_alua_do_port_transition( struct t10_alua_tg_pt_gp *l_tg_pt_gp, struct se_device *l_dev, - struct se_port *l_port, + struct se_lun *l_lun, struct se_node_acl *l_nacl, int new_state, int explicit) @@ -1173,7 +1165,7 @@ int core_alua_do_port_transition( * core_alua_do_transition_tg_pt() will always return * success. */ - l_tg_pt_gp->tg_pt_gp_alua_port = l_port; + l_tg_pt_gp->tg_pt_gp_alua_lun = l_lun; l_tg_pt_gp->tg_pt_gp_alua_nacl = l_nacl; rc = core_alua_do_transition_tg_pt(l_tg_pt_gp, new_state, explicit); @@ -1212,10 +1204,10 @@ int core_alua_do_port_transition( continue; if (l_tg_pt_gp == tg_pt_gp) { - tg_pt_gp->tg_pt_gp_alua_port = l_port; + tg_pt_gp->tg_pt_gp_alua_lun = l_lun; tg_pt_gp->tg_pt_gp_alua_nacl = l_nacl; } else { - tg_pt_gp->tg_pt_gp_alua_port = NULL; + tg_pt_gp->tg_pt_gp_alua_lun = NULL; tg_pt_gp->tg_pt_gp_alua_nacl = NULL; } atomic_inc_mb(&tg_pt_gp->tg_pt_gp_ref_cnt); @@ -1252,22 +1244,20 @@ int core_alua_do_port_transition( return rc; } -/* - * Called with tg_pt_gp_mem->sep_tg_pt_md_mutex held - */ -static int core_alua_update_tpg_secondary_metadata( - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, - struct se_port *port) +static int core_alua_update_tpg_secondary_metadata(struct se_lun *lun) { + struct se_portal_group *se_tpg = lun->lun_tpg; unsigned char *md_buf; - struct se_portal_group *se_tpg = port->sep_tpg; char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN]; int len, rc; + mutex_lock(&lun->lun_tg_pt_md_mutex); + md_buf = kzalloc(ALUA_MD_BUF_LEN, GFP_KERNEL); if (!md_buf) { pr_err("Unable to allocate buf for ALUA metadata\n"); - return -ENOMEM; + rc = -ENOMEM; + goto out_unlock; } memset(path, 0, ALUA_METADATA_PATH_LEN); @@ -1282,32 +1272,33 @@ static int core_alua_update_tpg_secondary_metadata( len = snprintf(md_buf, ALUA_MD_BUF_LEN, "alua_tg_pt_offline=%d\n" "alua_tg_pt_status=0x%02x\n", - atomic_read(&port->sep_tg_pt_secondary_offline), - port->sep_tg_pt_secondary_stat); + atomic_read(&lun->lun_tg_pt_secondary_offline), + lun->lun_tg_pt_secondary_stat); - snprintf(path, ALUA_METADATA_PATH_LEN, "/var/target/alua/%s/%s/lun_%u", + snprintf(path, ALUA_METADATA_PATH_LEN, "/var/target/alua/%s/%s/lun_%llu", se_tpg->se_tpg_tfo->get_fabric_name(), wwn, - port->sep_lun->unpacked_lun); + lun->unpacked_lun); rc = core_alua_write_tpg_metadata(path, md_buf, len); kfree(md_buf); +out_unlock: + mutex_unlock(&lun->lun_tg_pt_md_mutex); return rc; } static int core_alua_set_tg_pt_secondary_state( - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, - struct se_port *port, + struct se_lun *lun, int explicit, int offline) { struct t10_alua_tg_pt_gp *tg_pt_gp; int trans_delay_msecs; - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; if (!tg_pt_gp) { - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); pr_err("Unable to complete secondary state" " transition\n"); return -EINVAL; @@ -1315,14 +1306,14 @@ static int core_alua_set_tg_pt_secondary_state( trans_delay_msecs = tg_pt_gp->tg_pt_gp_trans_delay_msecs; /* * Set the secondary ALUA target port access state to OFFLINE - * or release the previously secondary state for struct se_port + * or release the previously secondary state for struct se_lun */ if (offline) - atomic_set(&port->sep_tg_pt_secondary_offline, 1); + atomic_set(&lun->lun_tg_pt_secondary_offline, 1); else - atomic_set(&port->sep_tg_pt_secondary_offline, 0); + atomic_set(&lun->lun_tg_pt_secondary_offline, 0); - port->sep_tg_pt_secondary_stat = (explicit) ? + lun->lun_tg_pt_secondary_stat = (explicit) ? ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG : ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA; @@ -1331,7 +1322,7 @@ static int core_alua_set_tg_pt_secondary_state( "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), tg_pt_gp->tg_pt_gp_id, (offline) ? "OFFLINE" : "ONLINE"); - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); /* * Do the optional transition delay after we set the secondary * ALUA access state. @@ -1342,11 +1333,8 @@ static int core_alua_set_tg_pt_secondary_state( * See if we need to update the ALUA fabric port metadata for * secondary state and status */ - if (port->sep_tg_pt_secondary_write_md) { - mutex_lock(&port->sep_tg_pt_md_mutex); - core_alua_update_tpg_secondary_metadata(tg_pt_gp_mem, port); - mutex_unlock(&port->sep_tg_pt_md_mutex); - } + if (lun->lun_tg_pt_secondary_write_md) + core_alua_update_tpg_secondary_metadata(lun); return 0; } @@ -1700,7 +1688,7 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev, return NULL; } INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_list); - INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_mem_list); + INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_lun_list); mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex); spin_lock_init(&tg_pt_gp->tg_pt_gp_lock); atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0); @@ -1794,32 +1782,11 @@ again: return 0; } -struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem( - struct se_port *port) -{ - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; - - tg_pt_gp_mem = kmem_cache_zalloc(t10_alua_tg_pt_gp_mem_cache, - GFP_KERNEL); - if (!tg_pt_gp_mem) { - pr_err("Unable to allocate struct t10_alua_tg_pt_gp_member\n"); - return ERR_PTR(-ENOMEM); - } - INIT_LIST_HEAD(&tg_pt_gp_mem->tg_pt_gp_mem_list); - spin_lock_init(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - atomic_set(&tg_pt_gp_mem->tg_pt_gp_mem_ref_cnt, 0); - - tg_pt_gp_mem->tg_pt = port; - port->sep_alua_tg_pt_gp_mem = tg_pt_gp_mem; - - return tg_pt_gp_mem; -} - void core_alua_free_tg_pt_gp( struct t10_alua_tg_pt_gp *tg_pt_gp) { struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *tg_pt_gp_mem_tmp; + struct se_lun *lun, *next; /* * Once we have reached this point, config_item_put() has already @@ -1850,30 +1817,24 @@ void core_alua_free_tg_pt_gp( * struct se_port. */ spin_lock(&tg_pt_gp->tg_pt_gp_lock); - list_for_each_entry_safe(tg_pt_gp_mem, tg_pt_gp_mem_tmp, - &tg_pt_gp->tg_pt_gp_mem_list, tg_pt_gp_mem_list) { - if (tg_pt_gp_mem->tg_pt_gp_assoc) { - list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list); - tg_pt_gp->tg_pt_gp_members--; - tg_pt_gp_mem->tg_pt_gp_assoc = 0; - } + list_for_each_entry_safe(lun, next, + &tg_pt_gp->tg_pt_gp_lun_list, lun_tg_pt_gp_link) { + list_del_init(&lun->lun_tg_pt_gp_link); + tg_pt_gp->tg_pt_gp_members--; + spin_unlock(&tg_pt_gp->tg_pt_gp_lock); /* - * tg_pt_gp_mem is associated with a single - * se_port->sep_alua_tg_pt_gp_mem, and is released via - * core_alua_free_tg_pt_gp_mem(). - * * If the passed tg_pt_gp does NOT match the default_tg_pt_gp, * assume we want to re-associate a given tg_pt_gp_mem with * default_tg_pt_gp. */ - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_lock(&lun->lun_tg_pt_gp_lock); if (tg_pt_gp != dev->t10_alua.default_tg_pt_gp) { - __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, + __target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp); } else - tg_pt_gp_mem->tg_pt_gp = NULL; - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + lun->lun_tg_pt_gp = NULL; + spin_unlock(&lun->lun_tg_pt_gp_lock); spin_lock(&tg_pt_gp->tg_pt_gp_lock); } @@ -1882,35 +1843,6 @@ void core_alua_free_tg_pt_gp( kmem_cache_free(t10_alua_tg_pt_gp_cache, tg_pt_gp); } -void core_alua_free_tg_pt_gp_mem(struct se_port *port) -{ - struct t10_alua_tg_pt_gp *tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; - - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) - return; - - while (atomic_read(&tg_pt_gp_mem->tg_pt_gp_mem_ref_cnt)) - cpu_relax(); - - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; - if (tg_pt_gp) { - spin_lock(&tg_pt_gp->tg_pt_gp_lock); - if (tg_pt_gp_mem->tg_pt_gp_assoc) { - list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list); - tg_pt_gp->tg_pt_gp_members--; - tg_pt_gp_mem->tg_pt_gp_assoc = 0; - } - spin_unlock(&tg_pt_gp->tg_pt_gp_lock); - tg_pt_gp_mem->tg_pt_gp = NULL; - } - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - - kmem_cache_free(t10_alua_tg_pt_gp_mem_cache, tg_pt_gp_mem); -} - static struct t10_alua_tg_pt_gp *core_alua_get_tg_pt_gp_by_name( struct se_device *dev, const char *name) { @@ -1944,50 +1876,65 @@ static void core_alua_put_tg_pt_gp_from_name( spin_unlock(&dev->t10_alua.tg_pt_gps_lock); } -/* - * Called with struct t10_alua_tg_pt_gp_member->tg_pt_gp_mem_lock held - */ -void __core_alua_attach_tg_pt_gp_mem( - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, - struct t10_alua_tg_pt_gp *tg_pt_gp) +static void __target_attach_tg_pt_gp(struct se_lun *lun, + struct t10_alua_tg_pt_gp *tg_pt_gp) { + struct se_dev_entry *se_deve; + + assert_spin_locked(&lun->lun_tg_pt_gp_lock); + spin_lock(&tg_pt_gp->tg_pt_gp_lock); - tg_pt_gp_mem->tg_pt_gp = tg_pt_gp; - tg_pt_gp_mem->tg_pt_gp_assoc = 1; - list_add_tail(&tg_pt_gp_mem->tg_pt_gp_mem_list, - &tg_pt_gp->tg_pt_gp_mem_list); + lun->lun_tg_pt_gp = tg_pt_gp; + list_add_tail(&lun->lun_tg_pt_gp_link, &tg_pt_gp->tg_pt_gp_lun_list); tg_pt_gp->tg_pt_gp_members++; + spin_lock(&lun->lun_deve_lock); + list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link) + core_scsi3_ua_allocate(se_deve, 0x3f, + ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED); + spin_unlock(&lun->lun_deve_lock); spin_unlock(&tg_pt_gp->tg_pt_gp_lock); } -/* - * Called with struct t10_alua_tg_pt_gp_member->tg_pt_gp_mem_lock held - */ -static void __core_alua_drop_tg_pt_gp_mem( - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, - struct t10_alua_tg_pt_gp *tg_pt_gp) +void target_attach_tg_pt_gp(struct se_lun *lun, + struct t10_alua_tg_pt_gp *tg_pt_gp) { + spin_lock(&lun->lun_tg_pt_gp_lock); + __target_attach_tg_pt_gp(lun, tg_pt_gp); + spin_unlock(&lun->lun_tg_pt_gp_lock); +} + +static void __target_detach_tg_pt_gp(struct se_lun *lun, + struct t10_alua_tg_pt_gp *tg_pt_gp) +{ + assert_spin_locked(&lun->lun_tg_pt_gp_lock); + spin_lock(&tg_pt_gp->tg_pt_gp_lock); - list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list); - tg_pt_gp_mem->tg_pt_gp = NULL; - tg_pt_gp_mem->tg_pt_gp_assoc = 0; + list_del_init(&lun->lun_tg_pt_gp_link); tg_pt_gp->tg_pt_gp_members--; spin_unlock(&tg_pt_gp->tg_pt_gp_lock); + + lun->lun_tg_pt_gp = NULL; } -ssize_t core_alua_show_tg_pt_gp_info(struct se_port *port, char *page) +void target_detach_tg_pt_gp(struct se_lun *lun) +{ + struct t10_alua_tg_pt_gp *tg_pt_gp; + + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; + if (tg_pt_gp) + __target_detach_tg_pt_gp(lun, tg_pt_gp); + spin_unlock(&lun->lun_tg_pt_gp_lock); +} + +ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *lun, char *page) { struct config_item *tg_pt_ci; struct t10_alua_tg_pt_gp *tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; ssize_t len = 0; - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) - return len; - - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; if (tg_pt_gp) { tg_pt_ci = &tg_pt_gp->tg_pt_gp_group.cg_item; len += sprintf(page, "TG Port Alias: %s\nTG Port Group ID:" @@ -1999,34 +1946,33 @@ ssize_t core_alua_show_tg_pt_gp_info(struct se_port *port, char *page) &tg_pt_gp->tg_pt_gp_alua_access_state)), core_alua_dump_status( tg_pt_gp->tg_pt_gp_alua_access_status), - (atomic_read(&port->sep_tg_pt_secondary_offline)) ? + atomic_read(&lun->lun_tg_pt_secondary_offline) ? "Offline" : "None", - core_alua_dump_status(port->sep_tg_pt_secondary_stat)); + core_alua_dump_status(lun->lun_tg_pt_secondary_stat)); } - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); return len; } ssize_t core_alua_store_tg_pt_gp_info( - struct se_port *port, + struct se_lun *lun, const char *page, size_t count) { - struct se_portal_group *tpg; - struct se_lun *lun; - struct se_device *dev = port->sep_lun->lun_se_dev; + struct se_portal_group *tpg = lun->lun_tpg; + /* + * rcu_dereference_raw protected by se_lun->lun_group symlink + * reference to se_device->dev_group. + */ + struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev); struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *tg_pt_gp_new = NULL; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; unsigned char buf[TG_PT_GROUP_NAME_BUF]; int move = 0; - tpg = port->sep_tpg; - lun = port->sep_lun; - - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) - return 0; + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH || + (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) + return -ENODEV; if (count > TG_PT_GROUP_NAME_BUF) { pr_err("ALUA Target Port Group alias too large!\n"); @@ -2050,8 +1996,8 @@ ssize_t core_alua_store_tg_pt_gp_info( return -ENODEV; } - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; if (tg_pt_gp) { /* * Clearing an existing tg_pt_gp association, and replacing @@ -2069,24 +2015,19 @@ ssize_t core_alua_store_tg_pt_gp_info( &tg_pt_gp->tg_pt_gp_group.cg_item), tg_pt_gp->tg_pt_gp_id); - __core_alua_drop_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp); - __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, + __target_detach_tg_pt_gp(lun, tg_pt_gp); + __target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp); - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); return count; } - /* - * Removing existing association of tg_pt_gp_mem with tg_pt_gp - */ - __core_alua_drop_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp); + __target_detach_tg_pt_gp(lun, tg_pt_gp); move = 1; } - /* - * Associate tg_pt_gp_mem with tg_pt_gp_new. - */ - __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp_new); - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + + __target_attach_tg_pt_gp(lun, tg_pt_gp_new); + spin_unlock(&lun->lun_tg_pt_gp_lock); pr_debug("Target_Core_ConfigFS: %s %s/tpgt_%hu/%s to ALUA" " Target Port Group: alua/%s, ID: %hu\n", (move) ? "Moving" : "Adding", tpg->se_tpg_tfo->tpg_get_wwn(tpg), @@ -2269,11 +2210,8 @@ ssize_t core_alua_store_preferred_bit( ssize_t core_alua_show_offline_bit(struct se_lun *lun, char *page) { - if (!lun->lun_sep) - return -ENODEV; - return sprintf(page, "%d\n", - atomic_read(&lun->lun_sep->sep_tg_pt_secondary_offline)); + atomic_read(&lun->lun_tg_pt_secondary_offline)); } ssize_t core_alua_store_offline_bit( @@ -2281,11 +2219,16 @@ ssize_t core_alua_store_offline_bit( const char *page, size_t count) { - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; + /* + * rcu_dereference_raw protected by se_lun->lun_group symlink + * reference to se_device->dev_group. + */ + struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev); unsigned long tmp; int ret; - if (!lun->lun_sep) + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH || + (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) return -ENODEV; ret = kstrtoul(page, 0, &tmp); @@ -2298,14 +2241,8 @@ ssize_t core_alua_store_offline_bit( tmp); return -EINVAL; } - tg_pt_gp_mem = lun->lun_sep->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) { - pr_err("Unable to locate *tg_pt_gp_mem\n"); - return -EINVAL; - } - ret = core_alua_set_tg_pt_secondary_state(tg_pt_gp_mem, - lun->lun_sep, 0, (int)tmp); + ret = core_alua_set_tg_pt_secondary_state(lun, 0, (int)tmp); if (ret < 0) return -EINVAL; @@ -2316,7 +2253,7 @@ ssize_t core_alua_show_secondary_status( struct se_lun *lun, char *page) { - return sprintf(page, "%d\n", lun->lun_sep->sep_tg_pt_secondary_stat); + return sprintf(page, "%d\n", lun->lun_tg_pt_secondary_stat); } ssize_t core_alua_store_secondary_status( @@ -2339,7 +2276,7 @@ ssize_t core_alua_store_secondary_status( tmp); return -EINVAL; } - lun->lun_sep->sep_tg_pt_secondary_stat = (int)tmp; + lun->lun_tg_pt_secondary_stat = (int)tmp; return count; } @@ -2348,8 +2285,7 @@ ssize_t core_alua_show_secondary_write_metadata( struct se_lun *lun, char *page) { - return sprintf(page, "%d\n", - lun->lun_sep->sep_tg_pt_secondary_write_md); + return sprintf(page, "%d\n", lun->lun_tg_pt_secondary_write_md); } ssize_t core_alua_store_secondary_write_metadata( @@ -2370,7 +2306,7 @@ ssize_t core_alua_store_secondary_write_metadata( " %lu\n", tmp); return -EINVAL; } - lun->lun_sep->sep_tg_pt_secondary_write_md = (int)tmp; + lun->lun_tg_pt_secondary_write_md = (int)tmp; return count; } diff --git a/kernel/drivers/target/target_core_alua.h b/kernel/drivers/target/target_core_alua.h index 0a7d65e80..9b250f9b3 100644 --- a/kernel/drivers/target/target_core_alua.h +++ b/kernel/drivers/target/target_core_alua.h @@ -85,7 +85,6 @@ extern struct kmem_cache *t10_alua_lu_gp_cache; extern struct kmem_cache *t10_alua_lu_gp_mem_cache; extern struct kmem_cache *t10_alua_tg_pt_gp_cache; -extern struct kmem_cache *t10_alua_tg_pt_gp_mem_cache; extern struct kmem_cache *t10_alua_lba_map_cache; extern struct kmem_cache *t10_alua_lba_map_mem_cache; @@ -94,7 +93,7 @@ extern sense_reason_t target_emulate_set_target_port_groups(struct se_cmd *); extern sense_reason_t target_emulate_report_referrals(struct se_cmd *); extern int core_alua_check_nonop_delay(struct se_cmd *); extern int core_alua_do_port_transition(struct t10_alua_tg_pt_gp *, - struct se_device *, struct se_port *, + struct se_device *, struct se_lun *, struct se_node_acl *, int, int); extern char *core_alua_dump_status(int); extern struct t10_alua_lba_map *core_alua_allocate_lba_map( @@ -117,14 +116,11 @@ extern void core_alua_drop_lu_gp_dev(struct se_device *); extern struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp( struct se_device *, const char *, int); extern int core_alua_set_tg_pt_gp_id(struct t10_alua_tg_pt_gp *, u16); -extern struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem( - struct se_port *); extern void core_alua_free_tg_pt_gp(struct t10_alua_tg_pt_gp *); -extern void core_alua_free_tg_pt_gp_mem(struct se_port *); -extern void __core_alua_attach_tg_pt_gp_mem(struct t10_alua_tg_pt_gp_member *, - struct t10_alua_tg_pt_gp *); -extern ssize_t core_alua_show_tg_pt_gp_info(struct se_port *, char *); -extern ssize_t core_alua_store_tg_pt_gp_info(struct se_port *, const char *, +extern void target_detach_tg_pt_gp(struct se_lun *); +extern void target_attach_tg_pt_gp(struct se_lun *, struct t10_alua_tg_pt_gp *); +extern ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *, char *); +extern ssize_t core_alua_store_tg_pt_gp_info(struct se_lun *, const char *, size_t); extern ssize_t core_alua_show_access_type(struct t10_alua_tg_pt_gp *, char *); extern ssize_t core_alua_store_access_type(struct t10_alua_tg_pt_gp *, diff --git a/kernel/drivers/target/target_core_configfs.c b/kernel/drivers/target/target_core_configfs.c index e7b0430a0..b9b9ffde4 100644 --- a/kernel/drivers/target/target_core_configfs.c +++ b/kernel/drivers/target/target_core_configfs.c @@ -40,9 +40,6 @@ #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_fabric_configfs.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "target_core_internal.h" #include "target_core_alua.h" @@ -51,15 +48,26 @@ #include "target_core_xcopy.h" #define TB_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ -static void target_core_setup_##_name##_cit(struct se_subsystem_api *sa) \ +static void target_core_setup_##_name##_cit(struct target_backend *tb) \ { \ - struct target_backend_cits *tbc = &sa->tb_cits; \ - struct config_item_type *cit = &tbc->tb_##_name##_cit; \ + struct config_item_type *cit = &tb->tb_##_name##_cit; \ \ cit->ct_item_ops = _item_ops; \ cit->ct_group_ops = _group_ops; \ cit->ct_attrs = _attrs; \ - cit->ct_owner = sa->owner; \ + cit->ct_owner = tb->ops->owner; \ + pr_debug("Setup generic %s\n", __stringify(_name)); \ +} + +#define TB_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ +static void target_core_setup_##_name##_cit(struct target_backend *tb) \ +{ \ + struct config_item_type *cit = &tb->tb_##_name##_cit; \ + \ + cit->ct_item_ops = _item_ops; \ + cit->ct_group_ops = _group_ops; \ + cit->ct_attrs = tb->ops->tb_##_name##_attrs; \ + cit->ct_owner = tb->ops->owner; \ pr_debug("Setup generic %s\n", __stringify(_name)); \ } @@ -68,12 +76,6 @@ extern struct t10_alua_lu_gp *default_lu_gp; static LIST_HEAD(g_tf_list); static DEFINE_MUTEX(g_tf_lock); -struct target_core_configfs_attribute { - struct configfs_attribute attr; - ssize_t (*show)(void *, char *); - ssize_t (*store)(void *, const char *, size_t); -}; - static struct config_group target_core_hbagroup; static struct config_group alua_group; static struct config_group alua_lu_gps_group; @@ -87,24 +89,15 @@ item_to_hba(struct config_item *item) /* * Attributes for /sys/kernel/config/target/ */ -static ssize_t target_core_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) +static ssize_t target_core_item_version_show(struct config_item *item, + char *page) { return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s" - " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_CONFIGFS_VERSION, + " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine); } -static struct configfs_item_operations target_core_fabric_item_ops = { - .show_attribute = target_core_attr_show, -}; - -static struct configfs_attribute target_core_item_attr_version = { - .ca_owner = THIS_MODULE, - .ca_name = "version", - .ca_mode = S_IRUGO, -}; +CONFIGFS_ATTR_RO(target_core_item_, version); static struct target_fabric_configfs *target_core_get_fabric( const char *name) @@ -116,7 +109,7 @@ static struct target_fabric_configfs *target_core_get_fabric( mutex_lock(&g_tf_lock); list_for_each_entry(tf, &g_tf_list, tf_list) { - if (!strcmp(tf->tf_name, name)) { + if (!strcmp(tf->tf_ops->name, name)) { atomic_inc(&tf->tf_access_cnt); mutex_unlock(&g_tf_lock); return tf; @@ -193,29 +186,24 @@ static struct config_group *target_core_register_fabric( return ERR_PTR(-EINVAL); } pr_debug("Target_Core_ConfigFS: REGISTER -> Located fabric:" - " %s\n", tf->tf_name); + " %s\n", tf->tf_ops->name); /* * On a successful target_core_get_fabric() look, the returned * struct target_fabric_configfs *tf will contain a usage reference. */ pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n", - &tf->tf_cit_tmpl.tfc_wwn_cit); + &tf->tf_wwn_cit); tf->tf_group.default_groups = tf->tf_default_groups; tf->tf_group.default_groups[0] = &tf->tf_disc_group; tf->tf_group.default_groups[1] = NULL; - config_group_init_type_name(&tf->tf_group, name, - &tf->tf_cit_tmpl.tfc_wwn_cit); + config_group_init_type_name(&tf->tf_group, name, &tf->tf_wwn_cit); config_group_init_type_name(&tf->tf_disc_group, "discovery_auth", - &tf->tf_cit_tmpl.tfc_discovery_cit); + &tf->tf_discovery_cit); pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:" " %s\n", tf->tf_group.cg_item.ci_name); - tf->tf_fabric = &tf->tf_group.cg_item; - pr_debug("Target_Core_ConfigFS: REGISTER -> Set tf->tf_fabric" - " for %s\n", name); - return &tf->tf_group; } @@ -236,13 +224,9 @@ static void target_core_deregister_fabric( " tf list\n", config_item_name(item)); pr_debug("Target_Core_ConfigFS: DEREGISTER -> located fabric:" - " %s\n", tf->tf_name); + " %s\n", tf->tf_ops->name); atomic_dec(&tf->tf_access_cnt); - pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing" - " tf->tf_fabric for %s\n", tf->tf_name); - tf->tf_fabric = NULL; - pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing ci" " %s\n", config_item_name(item)); @@ -272,7 +256,6 @@ static struct configfs_attribute *target_core_fabric_item_attrs[] = { * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/ */ static struct config_item_type target_core_fabrics_item = { - .ct_item_ops = &target_core_fabric_item_ops, .ct_group_ops = &target_core_fabric_group_ops, .ct_attrs = target_core_fabric_item_attrs, .ct_owner = THIS_MODULE, @@ -318,10 +301,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) pr_err("Missing tfo->get_fabric_name()\n"); return -EINVAL; } - if (!tfo->get_fabric_proto_ident) { - pr_err("Missing tfo->get_fabric_proto_ident()\n"); - return -EINVAL; - } if (!tfo->tpg_get_wwn) { pr_err("Missing tfo->tpg_get_wwn()\n"); return -EINVAL; @@ -330,18 +309,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) pr_err("Missing tfo->tpg_get_tag()\n"); return -EINVAL; } - if (!tfo->tpg_get_default_depth) { - pr_err("Missing tfo->tpg_get_default_depth()\n"); - return -EINVAL; - } - if (!tfo->tpg_get_pr_transport_id) { - pr_err("Missing tfo->tpg_get_pr_transport_id()\n"); - return -EINVAL; - } - if (!tfo->tpg_get_pr_transport_id_len) { - pr_err("Missing tfo->tpg_get_pr_transport_id_len()\n"); - return -EINVAL; - } if (!tfo->tpg_check_demo_mode) { pr_err("Missing tfo->tpg_check_demo_mode()\n"); return -EINVAL; @@ -358,14 +325,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) pr_err("Missing tfo->tpg_check_prod_mode_write_protect()\n"); return -EINVAL; } - if (!tfo->tpg_alloc_fabric_acl) { - pr_err("Missing tfo->tpg_alloc_fabric_acl()\n"); - return -EINVAL; - } - if (!tfo->tpg_release_fabric_acl) { - pr_err("Missing tfo->tpg_release_fabric_acl()\n"); - return -EINVAL; - } if (!tfo->tpg_get_inst_index) { pr_err("Missing tfo->tpg_get_inst_index()\n"); return -EINVAL; @@ -398,10 +357,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) pr_err("Missing tfo->set_default_node_attributes()\n"); return -EINVAL; } - if (!tfo->get_task_tag) { - pr_err("Missing tfo->get_task_tag()\n"); - return -EINVAL; - } if (!tfo->get_cmd_state) { pr_err("Missing tfo->get_cmd_state()\n"); return -EINVAL; @@ -464,15 +419,7 @@ int target_register_template(const struct target_core_fabric_ops *fo) INIT_LIST_HEAD(&tf->tf_list); atomic_set(&tf->tf_access_cnt, 0); - - /* - * Setup the default generic struct config_item_type's (cits) in - * struct target_fabric_configfs->tf_cit_tmpl - */ - tf->tf_module = fo->module; - snprintf(tf->tf_name, TARGET_FABRIC_NAME_SIZE, "%s", fo->name); - - tf->tf_ops = *fo; + tf->tf_ops = fo; target_fabric_setup_cits(tf); mutex_lock(&g_tf_lock); @@ -489,11 +436,18 @@ void target_unregister_template(const struct target_core_fabric_ops *fo) mutex_lock(&g_tf_lock); list_for_each_entry(t, &g_tf_list, tf_list) { - if (!strcmp(t->tf_name, fo->name)) { + if (!strcmp(t->tf_ops->name, fo->name)) { BUG_ON(atomic_read(&t->tf_access_cnt)); list_del(&t->tf_list); + mutex_unlock(&g_tf_lock); + /* + * Wait for any outstanding fabric se_deve_entry->rcu_head + * callbacks to complete post kfree_rcu(), before allowing + * fabric driver unload of TFO->module to proceed. + */ + rcu_barrier(); kfree(t); - break; + return; } } mutex_unlock(&g_tf_lock); @@ -504,53 +458,626 @@ EXPORT_SYMBOL(target_unregister_template); // Stop functions called by external Target Fabrics Modules //############################################################################*/ +static inline struct se_dev_attrib *to_attrib(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_dev_attrib, + da_group); +} + /* Start functions for struct config_item_type tb_dev_attrib_cit */ +#define DEF_CONFIGFS_ATTRIB_SHOW(_name) \ +static ssize_t _name##_show(struct config_item *item, char *page) \ +{ \ + return snprintf(page, PAGE_SIZE, "%u\n", to_attrib(item)->_name); \ +} + +DEF_CONFIGFS_ATTRIB_SHOW(emulate_model_alias); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_dpo); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_write); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_read); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_write_cache); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_ua_intlck_ctrl); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_tas); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpu); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpws); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_caw); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_3pc); +DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_type); +DEF_CONFIGFS_ATTRIB_SHOW(hw_pi_prot_type); +DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_format); +DEF_CONFIGFS_ATTRIB_SHOW(enforce_pr_isids); +DEF_CONFIGFS_ATTRIB_SHOW(is_nonrot); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_rest_reord); +DEF_CONFIGFS_ATTRIB_SHOW(force_pr_aptpl); +DEF_CONFIGFS_ATTRIB_SHOW(hw_block_size); +DEF_CONFIGFS_ATTRIB_SHOW(block_size); +DEF_CONFIGFS_ATTRIB_SHOW(hw_max_sectors); +DEF_CONFIGFS_ATTRIB_SHOW(optimal_sectors); +DEF_CONFIGFS_ATTRIB_SHOW(hw_queue_depth); +DEF_CONFIGFS_ATTRIB_SHOW(queue_depth); +DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_lba_count); +DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_block_desc_count); +DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity); +DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity_alignment); +DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len); + +#define DEF_CONFIGFS_ATTRIB_STORE_U32(_name) \ +static ssize_t _name##_store(struct config_item *item, const char *page,\ + size_t count) \ +{ \ + struct se_dev_attrib *da = to_attrib(item); \ + u32 val; \ + int ret; \ + \ + ret = kstrtou32(page, 0, &val); \ + if (ret < 0) \ + return ret; \ + da->_name = val; \ + return count; \ +} + +DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_lba_count); +DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_block_desc_count); +DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity); +DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity_alignment); +DEF_CONFIGFS_ATTRIB_STORE_U32(max_write_same_len); + +#define DEF_CONFIGFS_ATTRIB_STORE_BOOL(_name) \ +static ssize_t _name##_store(struct config_item *item, const char *page, \ + size_t count) \ +{ \ + struct se_dev_attrib *da = to_attrib(item); \ + bool flag; \ + int ret; \ + \ + ret = strtobool(page, &flag); \ + if (ret < 0) \ + return ret; \ + da->_name = flag; \ + return count; \ +} + +DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_fua_write); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_caw); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_3pc); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(enforce_pr_isids); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(is_nonrot); + +#define DEF_CONFIGFS_ATTRIB_STORE_STUB(_name) \ +static ssize_t _name##_store(struct config_item *item, const char *page,\ + size_t count) \ +{ \ + printk_once(KERN_WARNING \ + "ignoring deprecated ##_name## attribute\n"); \ + return count; \ +} + +DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_dpo); +DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_fua_read); + +static void dev_set_t10_wwn_model_alias(struct se_device *dev) +{ + const char *configname; + + configname = config_item_name(&dev->dev_group.cg_item); + if (strlen(configname) >= 16) { + pr_warn("dev[%p]: Backstore name '%s' is too long for " + "INQUIRY_MODEL, truncating to 16 bytes\n", dev, + configname); + } + snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); +} -CONFIGFS_EATTR_STRUCT(target_core_dev_attrib, se_dev_attrib); -CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group); +static ssize_t emulate_model_alias_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + struct se_device *dev = da->da_dev; + bool flag; + int ret; + + if (dev->export_count) { + pr_err("dev[%p]: Unable to change model alias" + " while export_count is %d\n", + dev, dev->export_count); + return -EINVAL; + } + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + if (flag) { + dev_set_t10_wwn_model_alias(dev); + } else { + strncpy(&dev->t10_wwn.model[0], + dev->transport->inquiry_prod, 16); + } + da->emulate_model_alias = flag; + return count; +} + +static ssize_t emulate_write_cache_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + if (flag && da->da_dev->transport->get_write_cache) { + pr_err("emulate_write_cache not supported for this device\n"); + return -EINVAL; + } + + da->emulate_write_cache = flag; + pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", + da->da_dev, flag); + return count; +} + +static ssize_t emulate_ua_intlck_ctrl_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + u32 val; + int ret; + + ret = kstrtou32(page, 0, &val); + if (ret < 0) + return ret; + + if (val != 0 && val != 1 && val != 2) { + pr_err("Illegal value %d\n", val); + return -EINVAL; + } + + if (da->da_dev->export_count) { + pr_err("dev[%p]: Unable to change SE Device" + " UA_INTRLCK_CTRL while export_count is %d\n", + da->da_dev, da->da_dev->export_count); + return -EINVAL; + } + da->emulate_ua_intlck_ctrl = val; + pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", + da->da_dev, val); + return count; +} + +static ssize_t emulate_tas_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + if (da->da_dev->export_count) { + pr_err("dev[%p]: Unable to change SE Device TAS while" + " export_count is %d\n", + da->da_dev, da->da_dev->export_count); + return -EINVAL; + } + da->emulate_tas = flag; + pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", + da->da_dev, flag ? "Enabled" : "Disabled"); + + return count; +} + +static ssize_t emulate_tpu_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; -static struct configfs_item_operations target_core_dev_attrib_ops = { - .show_attribute = target_core_dev_attrib_attr_show, - .store_attribute = target_core_dev_attrib_attr_store, + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + /* + * We expect this value to be non-zero when generic Block Layer + * Discard supported is detected iblock_create_virtdevice(). + */ + if (flag && !da->max_unmap_block_desc_count) { + pr_err("Generic Block Discard not supported\n"); + return -ENOSYS; + } + + da->emulate_tpu = flag; + pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", + da->da_dev, flag); + return count; +} + +static ssize_t emulate_tpws_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + /* + * We expect this value to be non-zero when generic Block Layer + * Discard supported is detected iblock_create_virtdevice(). + */ + if (flag && !da->max_unmap_block_desc_count) { + pr_err("Generic Block Discard not supported\n"); + return -ENOSYS; + } + + da->emulate_tpws = flag; + pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", + da->da_dev, flag); + return count; +} + +static ssize_t pi_prot_type_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + int old_prot = da->pi_prot_type, ret; + struct se_device *dev = da->da_dev; + u32 flag; + + ret = kstrtou32(page, 0, &flag); + if (ret < 0) + return ret; + + if (flag != 0 && flag != 1 && flag != 2 && flag != 3) { + pr_err("Illegal value %d for pi_prot_type\n", flag); + return -EINVAL; + } + if (flag == 2) { + pr_err("DIF TYPE2 protection currently not supported\n"); + return -ENOSYS; + } + if (da->hw_pi_prot_type) { + pr_warn("DIF protection enabled on underlying hardware," + " ignoring\n"); + return count; + } + if (!dev->transport->init_prot || !dev->transport->free_prot) { + /* 0 is only allowed value for non-supporting backends */ + if (flag == 0) + return count; + + pr_err("DIF protection not supported by backend: %s\n", + dev->transport->name); + return -ENOSYS; + } + if (!(dev->dev_flags & DF_CONFIGURED)) { + pr_err("DIF protection requires device to be configured\n"); + return -ENODEV; + } + if (dev->export_count) { + pr_err("dev[%p]: Unable to change SE Device PROT type while" + " export_count is %d\n", dev, dev->export_count); + return -EINVAL; + } + + da->pi_prot_type = flag; + + if (flag && !old_prot) { + ret = dev->transport->init_prot(dev); + if (ret) { + da->pi_prot_type = old_prot; + return ret; + } + + } else if (!flag && old_prot) { + dev->transport->free_prot(dev); + } + + pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); + return count; +} + +static ssize_t pi_prot_format_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + struct se_device *dev = da->da_dev; + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + if (!flag) + return count; + + if (!dev->transport->format_prot) { + pr_err("DIF protection format not supported by backend %s\n", + dev->transport->name); + return -ENOSYS; + } + if (!(dev->dev_flags & DF_CONFIGURED)) { + pr_err("DIF protection format requires device to be configured\n"); + return -ENODEV; + } + if (dev->export_count) { + pr_err("dev[%p]: Unable to format SE Device PROT type while" + " export_count is %d\n", dev, dev->export_count); + return -EINVAL; + } + + ret = dev->transport->format_prot(dev); + if (ret) + return ret; + + pr_debug("dev[%p]: SE Device Protection Format complete\n", dev); + return count; +} + +static ssize_t force_pr_aptpl_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + if (da->da_dev->export_count) { + pr_err("dev[%p]: Unable to set force_pr_aptpl while" + " export_count is %d\n", + da->da_dev, da->da_dev->export_count); + return -EINVAL; + } + + da->force_pr_aptpl = flag; + pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag); + return count; +} + +static ssize_t emulate_rest_reord_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + if (flag != 0) { + printk(KERN_ERR "dev[%p]: SE Device emulation of restricted" + " reordering not implemented\n", da->da_dev); + return -ENOSYS; + } + da->emulate_rest_reord = flag; + pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", + da->da_dev, flag); + return count; +} + +/* + * Note, this can only be called on unexported SE Device Object. + */ +static ssize_t queue_depth_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + struct se_device *dev = da->da_dev; + u32 val; + int ret; + + ret = kstrtou32(page, 0, &val); + if (ret < 0) + return ret; + + if (dev->export_count) { + pr_err("dev[%p]: Unable to change SE Device TCQ while" + " export_count is %d\n", + dev, dev->export_count); + return -EINVAL; + } + if (!val) { + pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev); + return -EINVAL; + } + + if (val > dev->dev_attrib.queue_depth) { + if (val > dev->dev_attrib.hw_queue_depth) { + pr_err("dev[%p]: Passed queue_depth:" + " %u exceeds TCM/SE_Device MAX" + " TCQ: %u\n", dev, val, + dev->dev_attrib.hw_queue_depth); + return -EINVAL; + } + } + da->queue_depth = dev->queue_depth = val; + pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val); + return count; +} + +static ssize_t optimal_sectors_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + u32 val; + int ret; + + ret = kstrtou32(page, 0, &val); + if (ret < 0) + return ret; + + if (da->da_dev->export_count) { + pr_err("dev[%p]: Unable to change SE Device" + " optimal_sectors while export_count is %d\n", + da->da_dev, da->da_dev->export_count); + return -EINVAL; + } + if (val > da->hw_max_sectors) { + pr_err("dev[%p]: Passed optimal_sectors %u cannot be" + " greater than hw_max_sectors: %u\n", + da->da_dev, val, da->hw_max_sectors); + return -EINVAL; + } + + da->optimal_sectors = val; + pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", + da->da_dev, val); + return count; +} + +static ssize_t block_size_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + u32 val; + int ret; + + ret = kstrtou32(page, 0, &val); + if (ret < 0) + return ret; + + if (da->da_dev->export_count) { + pr_err("dev[%p]: Unable to change SE Device block_size" + " while export_count is %d\n", + da->da_dev, da->da_dev->export_count); + return -EINVAL; + } + + if (val != 512 && val != 1024 && val != 2048 && val != 4096) { + pr_err("dev[%p]: Illegal value for block_device: %u" + " for SE device, must be 512, 1024, 2048 or 4096\n", + da->da_dev, val); + return -EINVAL; + } + + da->block_size = val; + if (da->max_bytes_per_io) + da->hw_max_sectors = da->max_bytes_per_io / val; + + pr_debug("dev[%p]: SE Device block_size changed to %u\n", + da->da_dev, val); + return count; +} + +CONFIGFS_ATTR(, emulate_model_alias); +CONFIGFS_ATTR(, emulate_dpo); +CONFIGFS_ATTR(, emulate_fua_write); +CONFIGFS_ATTR(, emulate_fua_read); +CONFIGFS_ATTR(, emulate_write_cache); +CONFIGFS_ATTR(, emulate_ua_intlck_ctrl); +CONFIGFS_ATTR(, emulate_tas); +CONFIGFS_ATTR(, emulate_tpu); +CONFIGFS_ATTR(, emulate_tpws); +CONFIGFS_ATTR(, emulate_caw); +CONFIGFS_ATTR(, emulate_3pc); +CONFIGFS_ATTR(, pi_prot_type); +CONFIGFS_ATTR_RO(, hw_pi_prot_type); +CONFIGFS_ATTR(, pi_prot_format); +CONFIGFS_ATTR(, enforce_pr_isids); +CONFIGFS_ATTR(, is_nonrot); +CONFIGFS_ATTR(, emulate_rest_reord); +CONFIGFS_ATTR(, force_pr_aptpl); +CONFIGFS_ATTR_RO(, hw_block_size); +CONFIGFS_ATTR(, block_size); +CONFIGFS_ATTR_RO(, hw_max_sectors); +CONFIGFS_ATTR(, optimal_sectors); +CONFIGFS_ATTR_RO(, hw_queue_depth); +CONFIGFS_ATTR(, queue_depth); +CONFIGFS_ATTR(, max_unmap_lba_count); +CONFIGFS_ATTR(, max_unmap_block_desc_count); +CONFIGFS_ATTR(, unmap_granularity); +CONFIGFS_ATTR(, unmap_granularity_alignment); +CONFIGFS_ATTR(, max_write_same_len); + +/* + * dev_attrib attributes for devices using the target core SBC/SPC + * interpreter. Any backend using spc_parse_cdb should be using + * these. + */ +struct configfs_attribute *sbc_attrib_attrs[] = { + &attr_emulate_model_alias, + &attr_emulate_dpo, + &attr_emulate_fua_write, + &attr_emulate_fua_read, + &attr_emulate_write_cache, + &attr_emulate_ua_intlck_ctrl, + &attr_emulate_tas, + &attr_emulate_tpu, + &attr_emulate_tpws, + &attr_emulate_caw, + &attr_emulate_3pc, + &attr_pi_prot_type, + &attr_hw_pi_prot_type, + &attr_pi_prot_format, + &attr_enforce_pr_isids, + &attr_is_nonrot, + &attr_emulate_rest_reord, + &attr_force_pr_aptpl, + &attr_hw_block_size, + &attr_block_size, + &attr_hw_max_sectors, + &attr_optimal_sectors, + &attr_hw_queue_depth, + &attr_queue_depth, + &attr_max_unmap_lba_count, + &attr_max_unmap_block_desc_count, + &attr_unmap_granularity, + &attr_unmap_granularity_alignment, + &attr_max_write_same_len, + NULL, }; +EXPORT_SYMBOL(sbc_attrib_attrs); -TB_CIT_SETUP(dev_attrib, &target_core_dev_attrib_ops, NULL, NULL); +/* + * Minimal dev_attrib attributes for devices passing through CDBs. + * In this case we only provide a few read-only attributes for + * backwards compatibility. + */ +struct configfs_attribute *passthrough_attrib_attrs[] = { + &attr_hw_pi_prot_type, + &attr_hw_block_size, + &attr_hw_max_sectors, + &attr_hw_queue_depth, + NULL, +}; +EXPORT_SYMBOL(passthrough_attrib_attrs); + +TB_CIT_SETUP_DRV(dev_attrib, NULL, NULL); /* End functions for struct config_item_type tb_dev_attrib_cit */ /* Start functions for struct config_item_type tb_dev_wwn_cit */ -CONFIGFS_EATTR_STRUCT(target_core_dev_wwn, t10_wwn); -#define SE_DEV_WWN_ATTR(_name, _mode) \ -static struct target_core_dev_wwn_attribute target_core_dev_wwn_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_dev_wwn_show_attr_##_name, \ - target_core_dev_wwn_store_attr_##_name); - -#define SE_DEV_WWN_ATTR_RO(_name); \ -do { \ - static struct target_core_dev_wwn_attribute \ - target_core_dev_wwn_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_dev_wwn_show_attr_##_name); \ -} while (0); +static struct t10_wwn *to_t10_wwn(struct config_item *item) +{ + return container_of(to_config_group(item), struct t10_wwn, t10_wwn_group); +} /* * VPD page 0x80 Unit serial */ -static ssize_t target_core_dev_wwn_show_attr_vpd_unit_serial( - struct t10_wwn *t10_wwn, - char *page) +static ssize_t target_wwn_vpd_unit_serial_show(struct config_item *item, + char *page) { return sprintf(page, "T10 VPD Unit Serial Number: %s\n", - &t10_wwn->unit_serial[0]); + &to_t10_wwn(item)->unit_serial[0]); } -static ssize_t target_core_dev_wwn_store_attr_vpd_unit_serial( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) +static ssize_t target_wwn_vpd_unit_serial_store(struct config_item *item, + const char *page, size_t count) { + struct t10_wwn *t10_wwn = to_t10_wwn(item); struct se_device *dev = t10_wwn->t10_dev; unsigned char buf[INQUIRY_VPD_SERIAL_LEN]; @@ -606,15 +1133,13 @@ static ssize_t target_core_dev_wwn_store_attr_vpd_unit_serial( return count; } -SE_DEV_WWN_ATTR(vpd_unit_serial, S_IRUGO | S_IWUSR); - /* * VPD page 0x83 Protocol Identifier */ -static ssize_t target_core_dev_wwn_show_attr_vpd_protocol_identifier( - struct t10_wwn *t10_wwn, - char *page) +static ssize_t target_wwn_vpd_protocol_identifier_show(struct config_item *item, + char *page) { + struct t10_wwn *t10_wwn = to_t10_wwn(item); struct t10_vpd *vpd; unsigned char buf[VPD_TMP_BUF_SIZE]; ssize_t len = 0; @@ -638,25 +1163,15 @@ static ssize_t target_core_dev_wwn_show_attr_vpd_protocol_identifier( return len; } -static ssize_t target_core_dev_wwn_store_attr_vpd_protocol_identifier( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_protocol_identifier, S_IRUGO | S_IWUSR); - /* * Generic wrapper for dumping VPD identifiers by association. */ #define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \ -static ssize_t target_core_dev_wwn_show_attr_##_name( \ - struct t10_wwn *t10_wwn, \ - char *page) \ +static ssize_t target_wwn_##_name##_show(struct config_item *item, \ + char *page) \ { \ - struct t10_vpd *vpd; \ + struct t10_wwn *t10_wwn = to_t10_wwn(item); \ + struct t10_vpd *vpd; \ unsigned char buf[VPD_TMP_BUF_SIZE]; \ ssize_t len = 0; \ \ @@ -688,84 +1203,39 @@ static ssize_t target_core_dev_wwn_show_attr_##_name( \ return len; \ } -/* - * VPD page 0x83 Association: Logical Unit - */ +/* VPD page 0x83 Association: Logical Unit */ DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00); - -static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_logical_unit( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_assoc_logical_unit, S_IRUGO | S_IWUSR); - -/* - * VPD page 0x83 Association: Target Port - */ +/* VPD page 0x83 Association: Target Port */ DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10); - -static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_target_port( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_assoc_target_port, S_IRUGO | S_IWUSR); - -/* - * VPD page 0x83 Association: SCSI Target Device - */ +/* VPD page 0x83 Association: SCSI Target Device */ DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20); -static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_scsi_target_device( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_assoc_scsi_target_device, S_IRUGO | S_IWUSR); - -CONFIGFS_EATTR_OPS(target_core_dev_wwn, t10_wwn, t10_wwn_group); +CONFIGFS_ATTR(target_wwn_, vpd_unit_serial); +CONFIGFS_ATTR_RO(target_wwn_, vpd_protocol_identifier); +CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_logical_unit); +CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_target_port); +CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_scsi_target_device); static struct configfs_attribute *target_core_dev_wwn_attrs[] = { - &target_core_dev_wwn_vpd_unit_serial.attr, - &target_core_dev_wwn_vpd_protocol_identifier.attr, - &target_core_dev_wwn_vpd_assoc_logical_unit.attr, - &target_core_dev_wwn_vpd_assoc_target_port.attr, - &target_core_dev_wwn_vpd_assoc_scsi_target_device.attr, + &target_wwn_attr_vpd_unit_serial, + &target_wwn_attr_vpd_protocol_identifier, + &target_wwn_attr_vpd_assoc_logical_unit, + &target_wwn_attr_vpd_assoc_target_port, + &target_wwn_attr_vpd_assoc_scsi_target_device, NULL, }; -static struct configfs_item_operations target_core_dev_wwn_ops = { - .show_attribute = target_core_dev_wwn_attr_show, - .store_attribute = target_core_dev_wwn_attr_store, -}; - -TB_CIT_SETUP(dev_wwn, &target_core_dev_wwn_ops, NULL, target_core_dev_wwn_attrs); +TB_CIT_SETUP(dev_wwn, NULL, NULL, target_core_dev_wwn_attrs); /* End functions for struct config_item_type tb_dev_wwn_cit */ /* Start functions for struct config_item_type tb_dev_pr_cit */ -CONFIGFS_EATTR_STRUCT(target_core_dev_pr, se_device); -#define SE_DEV_PR_ATTR(_name, _mode) \ -static struct target_core_dev_pr_attribute target_core_dev_pr_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_dev_pr_show_attr_##_name, \ - target_core_dev_pr_store_attr_##_name); - -#define SE_DEV_PR_ATTR_RO(_name); \ -static struct target_core_dev_pr_attribute target_core_dev_pr_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_dev_pr_show_attr_##_name); +static struct se_device *pr_to_dev(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_device, + dev_pr_group); +} static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev, char *page) @@ -806,9 +1276,9 @@ static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev, return len; } -static ssize_t target_core_dev_pr_show_attr_res_holder(struct se_device *dev, - char *page) +static ssize_t target_pr_res_holder_show(struct config_item *item, char *page) { + struct se_device *dev = pr_to_dev(item); int ret; if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) @@ -823,11 +1293,10 @@ static ssize_t target_core_dev_pr_show_attr_res_holder(struct se_device *dev, return ret; } -SE_DEV_PR_ATTR_RO(res_holder); - -static ssize_t target_core_dev_pr_show_attr_res_pr_all_tgt_pts( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_all_tgt_pts_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); ssize_t len = 0; spin_lock(&dev->dev_reservation_lock); @@ -845,24 +1314,18 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_all_tgt_pts( return len; } -SE_DEV_PR_ATTR_RO(res_pr_all_tgt_pts); - -static ssize_t target_core_dev_pr_show_attr_res_pr_generation( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_generation_show(struct config_item *item, + char *page) { - return sprintf(page, "0x%08x\n", dev->t10_pr.pr_generation); + return sprintf(page, "0x%08x\n", pr_to_dev(item)->t10_pr.pr_generation); } -SE_DEV_PR_ATTR_RO(res_pr_generation); -/* - * res_pr_holder_tg_port - */ -static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_holder_tg_port_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); struct se_node_acl *se_nacl; - struct se_lun *lun; struct se_portal_group *se_tpg; struct t10_pr_registration *pr_reg; const struct target_core_fabric_ops *tfo; @@ -877,7 +1340,6 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( se_nacl = pr_reg->pr_reg_nacl; se_tpg = se_nacl->se_tpg; - lun = pr_reg->pr_reg_tg_pt_lun; tfo = se_tpg->se_tpg_tfo; len += sprintf(page+len, "SPC-3 Reservation: %s" @@ -885,20 +1347,20 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( tfo->tpg_get_wwn(se_tpg)); len += sprintf(page+len, "SPC-3 Reservation: Relative Port" " Identifier Tag: %hu %s Portal Group Tag: %hu" - " %s Logical Unit: %u\n", lun->lun_sep->sep_rtpi, + " %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi, tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg), - tfo->get_fabric_name(), lun->unpacked_lun); + tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun); out_unlock: spin_unlock(&dev->dev_reservation_lock); return len; } -SE_DEV_PR_ATTR_RO(res_pr_holder_tg_port); -static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_registered_i_pts_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); const struct target_core_fabric_ops *tfo; struct t10_pr_registration *pr_reg; unsigned char buf[384]; @@ -936,11 +1398,9 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts( return len; } -SE_DEV_PR_ATTR_RO(res_pr_registered_i_pts); - -static ssize_t target_core_dev_pr_show_attr_res_pr_type( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_type_show(struct config_item *item, char *page) { + struct se_device *dev = pr_to_dev(item); struct t10_pr_registration *pr_reg; ssize_t len = 0; @@ -957,11 +1417,10 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_type( return len; } -SE_DEV_PR_ATTR_RO(res_pr_type); - -static ssize_t target_core_dev_pr_show_attr_res_type( - struct se_device *dev, char *page) +static ssize_t target_pr_res_type_show(struct config_item *item, char *page) { + struct se_device *dev = pr_to_dev(item); + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return sprintf(page, "SPC_PASSTHROUGH\n"); else if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) @@ -970,11 +1429,11 @@ static ssize_t target_core_dev_pr_show_attr_res_type( return sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n"); } -SE_DEV_PR_ATTR_RO(res_type); - -static ssize_t target_core_dev_pr_show_attr_res_aptpl_active( - struct se_device *dev, char *page) +static ssize_t target_pr_res_aptpl_active_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return 0; @@ -982,14 +1441,11 @@ static ssize_t target_core_dev_pr_show_attr_res_aptpl_active( (dev->t10_pr.pr_aptpl_active) ? "Activated" : "Disabled"); } -SE_DEV_PR_ATTR_RO(res_aptpl_active); - -/* - * res_aptpl_metadata - */ -static ssize_t target_core_dev_pr_show_attr_res_aptpl_metadata( - struct se_device *dev, char *page) +static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return 0; @@ -1012,35 +1468,34 @@ static match_table_t tokens = { {Opt_res_type, "res_type=%d"}, {Opt_res_scope, "res_scope=%d"}, {Opt_res_all_tg_pt, "res_all_tg_pt=%d"}, - {Opt_mapped_lun, "mapped_lun=%d"}, + {Opt_mapped_lun, "mapped_lun=%lld"}, {Opt_target_fabric, "target_fabric=%s"}, {Opt_target_node, "target_node=%s"}, {Opt_tpgt, "tpgt=%d"}, {Opt_port_rtpi, "port_rtpi=%d"}, - {Opt_target_lun, "target_lun=%d"}, + {Opt_target_lun, "target_lun=%lld"}, {Opt_err, NULL} }; -static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( - struct se_device *dev, - const char *page, - size_t count) +static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, + const char *page, size_t count) { + struct se_device *dev = pr_to_dev(item); unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; unsigned char *t_fabric = NULL, *t_port = NULL; char *orig, *ptr, *opts; substring_t args[MAX_OPT_ARGS]; unsigned long long tmp_ll; u64 sa_res_key = 0; - u32 mapped_lun = 0, target_lun = 0; + u64 mapped_lun = 0, target_lun = 0; int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token; - u16 port_rpti = 0, tpgt = 0; - u8 type = 0, scope; + u16 tpgt = 0; + u8 type = 0; if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) - return 0; + return count; if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) - return 0; + return count; if (dev->export_count) { pr_debug("Unable to process APTPL metadata while" @@ -1106,24 +1561,33 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( * PR APTPL Metadata for Reservation */ case Opt_res_holder: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; res_holder = arg; break; case Opt_res_type: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; type = (u8)arg; break; case Opt_res_scope: - match_int(args, &arg); - scope = (u8)arg; + ret = match_int(args, &arg); + if (ret) + goto out; break; case Opt_res_all_tg_pt: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; all_tg_pt = (int)arg; break; case Opt_mapped_lun: - match_int(args, &arg); - mapped_lun = (u32)arg; + ret = match_int(args, &arg); + if (ret) + goto out; + mapped_lun = (u64)arg; break; /* * PR APTPL Metadata for Target Port @@ -1150,16 +1614,21 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( } break; case Opt_tpgt: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; tpgt = (u16)arg; break; case Opt_port_rtpi: - match_int(args, &arg); - port_rpti = (u16)arg; + ret = match_int(args, &arg); + if (ret) + goto out; break; case Opt_target_lun: - match_int(args, &arg); - target_lun = (u32)arg; + ret = match_int(args, &arg); + if (ret) + goto out; + target_lun = (u64)arg; break; default: break; @@ -1192,77 +1661,65 @@ out: return (ret == 0) ? count : ret; } -SE_DEV_PR_ATTR(res_aptpl_metadata, S_IRUGO | S_IWUSR); -CONFIGFS_EATTR_OPS(target_core_dev_pr, se_device, dev_pr_group); +CONFIGFS_ATTR_RO(target_pr_, res_holder); +CONFIGFS_ATTR_RO(target_pr_, res_pr_all_tgt_pts); +CONFIGFS_ATTR_RO(target_pr_, res_pr_generation); +CONFIGFS_ATTR_RO(target_pr_, res_pr_holder_tg_port); +CONFIGFS_ATTR_RO(target_pr_, res_pr_registered_i_pts); +CONFIGFS_ATTR_RO(target_pr_, res_pr_type); +CONFIGFS_ATTR_RO(target_pr_, res_type); +CONFIGFS_ATTR_RO(target_pr_, res_aptpl_active); +CONFIGFS_ATTR(target_pr_, res_aptpl_metadata); static struct configfs_attribute *target_core_dev_pr_attrs[] = { - &target_core_dev_pr_res_holder.attr, - &target_core_dev_pr_res_pr_all_tgt_pts.attr, - &target_core_dev_pr_res_pr_generation.attr, - &target_core_dev_pr_res_pr_holder_tg_port.attr, - &target_core_dev_pr_res_pr_registered_i_pts.attr, - &target_core_dev_pr_res_pr_type.attr, - &target_core_dev_pr_res_type.attr, - &target_core_dev_pr_res_aptpl_active.attr, - &target_core_dev_pr_res_aptpl_metadata.attr, + &target_pr_attr_res_holder, + &target_pr_attr_res_pr_all_tgt_pts, + &target_pr_attr_res_pr_generation, + &target_pr_attr_res_pr_holder_tg_port, + &target_pr_attr_res_pr_registered_i_pts, + &target_pr_attr_res_pr_type, + &target_pr_attr_res_type, + &target_pr_attr_res_aptpl_active, + &target_pr_attr_res_aptpl_metadata, NULL, }; -static struct configfs_item_operations target_core_dev_pr_ops = { - .show_attribute = target_core_dev_pr_attr_show, - .store_attribute = target_core_dev_pr_attr_store, -}; - -TB_CIT_SETUP(dev_pr, &target_core_dev_pr_ops, NULL, target_core_dev_pr_attrs); +TB_CIT_SETUP(dev_pr, NULL, NULL, target_core_dev_pr_attrs); /* End functions for struct config_item_type tb_dev_pr_cit */ /* Start functions for struct config_item_type tb_dev_cit */ -static ssize_t target_core_show_dev_info(void *p, char *page) +static inline struct se_device *to_device(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_device, dev_group); +} + +static ssize_t target_dev_info_show(struct config_item *item, char *page) { - struct se_device *dev = p; - struct se_subsystem_api *t = dev->transport; + struct se_device *dev = to_device(item); int bl = 0; ssize_t read_bytes = 0; transport_dump_dev_state(dev, page, &bl); read_bytes += bl; - read_bytes += t->show_configfs_dev_params(dev, page+read_bytes); + read_bytes += dev->transport->show_configfs_dev_params(dev, + page+read_bytes); return read_bytes; } -static struct target_core_configfs_attribute target_core_attr_dev_info = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "info", - .ca_mode = S_IRUGO }, - .show = target_core_show_dev_info, - .store = NULL, -}; - -static ssize_t target_core_store_dev_control( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_control_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; - struct se_subsystem_api *t = dev->transport; + struct se_device *dev = to_device(item); - return t->set_configfs_dev_params(dev, page, count); + return dev->transport->set_configfs_dev_params(dev, page, count); } -static struct target_core_configfs_attribute target_core_attr_dev_control = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "control", - .ca_mode = S_IWUSR }, - .show = NULL, - .store = target_core_store_dev_control, -}; - -static ssize_t target_core_show_dev_alias(void *p, char *page) +static ssize_t target_dev_alias_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); if (!(dev->dev_flags & DF_USING_ALIAS)) return 0; @@ -1270,12 +1727,10 @@ static ssize_t target_core_show_dev_alias(void *p, char *page) return snprintf(page, PAGE_SIZE, "%s\n", dev->dev_alias); } -static ssize_t target_core_store_dev_alias( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_alias_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct se_hba *hba = dev->se_hba; ssize_t read_bytes; @@ -1302,17 +1757,9 @@ static ssize_t target_core_store_dev_alias( return read_bytes; } -static struct target_core_configfs_attribute target_core_attr_dev_alias = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "alias", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_alias, - .store = target_core_store_dev_alias, -}; - -static ssize_t target_core_show_dev_udev_path(void *p, char *page) +static ssize_t target_dev_udev_path_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); if (!(dev->dev_flags & DF_USING_UDEV_PATH)) return 0; @@ -1320,12 +1767,10 @@ static ssize_t target_core_show_dev_udev_path(void *p, char *page) return snprintf(page, PAGE_SIZE, "%s\n", dev->udev_path); } -static ssize_t target_core_store_dev_udev_path( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_udev_path_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct se_hba *hba = dev->se_hba; ssize_t read_bytes; @@ -1353,27 +1798,17 @@ static ssize_t target_core_store_dev_udev_path( return read_bytes; } -static struct target_core_configfs_attribute target_core_attr_dev_udev_path = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "udev_path", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_udev_path, - .store = target_core_store_dev_udev_path, -}; - -static ssize_t target_core_show_dev_enable(void *p, char *page) +static ssize_t target_dev_enable_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED)); } -static ssize_t target_core_store_dev_enable( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_enable_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); char *ptr; int ret; @@ -1390,17 +1825,9 @@ static ssize_t target_core_store_dev_enable( return count; } -static struct target_core_configfs_attribute target_core_attr_dev_enable = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "enable", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_enable, - .store = target_core_store_dev_enable, -}; - -static ssize_t target_core_show_alua_lu_gp(void *p, char *page) +static ssize_t target_dev_alua_lu_gp_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct config_item *lu_ci; struct t10_alua_lu_gp *lu_gp; struct t10_alua_lu_gp_member *lu_gp_mem; @@ -1422,12 +1849,10 @@ static ssize_t target_core_show_alua_lu_gp(void *p, char *page) return len; } -static ssize_t target_core_store_alua_lu_gp( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_alua_lu_gp_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct se_hba *hba = dev->se_hba; struct t10_alua_lu_gp *lu_gp = NULL, *lu_gp_new = NULL; struct t10_alua_lu_gp_member *lu_gp_mem; @@ -1436,7 +1861,7 @@ static ssize_t target_core_store_alua_lu_gp( lu_gp_mem = dev->dev_alua_lu_gp_mem; if (!lu_gp_mem) - return 0; + return count; if (count > LU_GROUP_NAME_BUF) { pr_err("ALUA LU Group Alias too large!\n"); @@ -1504,17 +1929,9 @@ static ssize_t target_core_store_alua_lu_gp( return count; } -static struct target_core_configfs_attribute target_core_attr_dev_alua_lu_gp = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "alua_lu_gp", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_alua_lu_gp, - .store = target_core_store_alua_lu_gp, -}; - -static ssize_t target_core_show_dev_lba_map(void *p, char *page) +static ssize_t target_dev_lba_map_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct t10_alua_lba_map *map; struct t10_alua_lba_map_member *mem; char *b = page; @@ -1557,12 +1974,10 @@ static ssize_t target_core_show_dev_lba_map(void *p, char *page) return bl; } -static ssize_t target_core_store_dev_lba_map( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_lba_map_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct t10_alua_lba_map *lba_map = NULL; struct list_head lba_list; char *map_entries, *ptr; @@ -1674,22 +2089,22 @@ out: return count; } -static struct target_core_configfs_attribute target_core_attr_dev_lba_map = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "lba_map", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_lba_map, - .store = target_core_store_dev_lba_map, -}; +CONFIGFS_ATTR_RO(target_dev_, info); +CONFIGFS_ATTR_WO(target_dev_, control); +CONFIGFS_ATTR(target_dev_, alias); +CONFIGFS_ATTR(target_dev_, udev_path); +CONFIGFS_ATTR(target_dev_, enable); +CONFIGFS_ATTR(target_dev_, alua_lu_gp); +CONFIGFS_ATTR(target_dev_, lba_map); static struct configfs_attribute *target_core_dev_attrs[] = { - &target_core_attr_dev_info.attr, - &target_core_attr_dev_control.attr, - &target_core_attr_dev_alias.attr, - &target_core_attr_dev_udev_path.attr, - &target_core_attr_dev_enable.attr, - &target_core_attr_dev_alua_lu_gp.attr, - &target_core_attr_dev_lba_map.attr, + &target_dev_attr_info, + &target_dev_attr_control, + &target_dev_attr_alias, + &target_dev_attr_udev_path, + &target_dev_attr_enable, + &target_dev_attr_alua_lu_gp, + &target_dev_attr_lba_map, NULL, }; @@ -1703,42 +2118,8 @@ static void target_core_dev_release(struct config_item *item) target_free_device(dev); } -static ssize_t target_core_dev_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - struct config_group *dev_cg = to_config_group(item); - struct se_device *dev = - container_of(dev_cg, struct se_device, dev_group); - struct target_core_configfs_attribute *tc_attr = container_of( - attr, struct target_core_configfs_attribute, attr); - - if (!tc_attr->show) - return -EINVAL; - - return tc_attr->show(dev, page); -} - -static ssize_t target_core_dev_store(struct config_item *item, - struct configfs_attribute *attr, - const char *page, size_t count) -{ - struct config_group *dev_cg = to_config_group(item); - struct se_device *dev = - container_of(dev_cg, struct se_device, dev_group); - struct target_core_configfs_attribute *tc_attr = container_of( - attr, struct target_core_configfs_attribute, attr); - - if (!tc_attr->store) - return -EINVAL; - - return tc_attr->store(dev, page, count); -} - static struct configfs_item_operations target_core_dev_item_ops = { .release = target_core_dev_release, - .show_attribute = target_core_dev_show, - .store_attribute = target_core_dev_store, }; TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); @@ -1747,38 +2128,25 @@ TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); /* Start functions for struct config_item_type target_core_alua_lu_gp_cit */ -CONFIGFS_EATTR_STRUCT(target_core_alua_lu_gp, t10_alua_lu_gp); -#define SE_DEV_ALUA_LU_ATTR(_name, _mode) \ -static struct target_core_alua_lu_gp_attribute \ - target_core_alua_lu_gp_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_alua_lu_gp_show_attr_##_name, \ - target_core_alua_lu_gp_store_attr_##_name); - -#define SE_DEV_ALUA_LU_ATTR_RO(_name) \ -static struct target_core_alua_lu_gp_attribute \ - target_core_alua_lu_gp_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_alua_lu_gp_show_attr_##_name); +static inline struct t10_alua_lu_gp *to_lu_gp(struct config_item *item) +{ + return container_of(to_config_group(item), struct t10_alua_lu_gp, + lu_gp_group); +} -/* - * lu_gp_id - */ -static ssize_t target_core_alua_lu_gp_show_attr_lu_gp_id( - struct t10_alua_lu_gp *lu_gp, - char *page) +static ssize_t target_lu_gp_lu_gp_id_show(struct config_item *item, char *page) { + struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); + if (!lu_gp->lu_gp_valid_id) return 0; - return sprintf(page, "%hu\n", lu_gp->lu_gp_id); } -static ssize_t target_core_alua_lu_gp_store_attr_lu_gp_id( - struct t10_alua_lu_gp *lu_gp, - const char *page, - size_t count) +static ssize_t target_lu_gp_lu_gp_id_store(struct config_item *item, + const char *page, size_t count) { + struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group; unsigned long lu_gp_id; int ret; @@ -1807,15 +2175,9 @@ static ssize_t target_core_alua_lu_gp_store_attr_lu_gp_id( return count; } -SE_DEV_ALUA_LU_ATTR(lu_gp_id, S_IRUGO | S_IWUSR); - -/* - * members - */ -static ssize_t target_core_alua_lu_gp_show_attr_members( - struct t10_alua_lu_gp *lu_gp, - char *page) +static ssize_t target_lu_gp_members_show(struct config_item *item, char *page) { + struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); struct se_device *dev; struct se_hba *hba; struct t10_alua_lu_gp_member *lu_gp_mem; @@ -1847,13 +2209,12 @@ static ssize_t target_core_alua_lu_gp_show_attr_members( return len; } -SE_DEV_ALUA_LU_ATTR_RO(members); - -CONFIGFS_EATTR_OPS(target_core_alua_lu_gp, t10_alua_lu_gp, lu_gp_group); +CONFIGFS_ATTR(target_lu_gp_, lu_gp_id); +CONFIGFS_ATTR_RO(target_lu_gp_, members); static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = { - &target_core_alua_lu_gp_lu_gp_id.attr, - &target_core_alua_lu_gp_members.attr, + &target_lu_gp_attr_lu_gp_id, + &target_lu_gp_attr_members, NULL, }; @@ -1867,8 +2228,6 @@ static void target_core_alua_lu_gp_release(struct config_item *item) static struct configfs_item_operations target_core_alua_lu_gp_ops = { .release = target_core_alua_lu_gp_release, - .show_attribute = target_core_alua_lu_gp_attr_show, - .store_attribute = target_core_alua_lu_gp_attr_store, }; static struct config_item_type target_core_alua_lu_gp_cit = { @@ -1939,36 +2298,23 @@ static struct config_item_type target_core_alua_lu_gps_cit = { /* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ -CONFIGFS_EATTR_STRUCT(target_core_alua_tg_pt_gp, t10_alua_tg_pt_gp); -#define SE_DEV_ALUA_TG_PT_ATTR(_name, _mode) \ -static struct target_core_alua_tg_pt_gp_attribute \ - target_core_alua_tg_pt_gp_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_alua_tg_pt_gp_show_attr_##_name, \ - target_core_alua_tg_pt_gp_store_attr_##_name); - -#define SE_DEV_ALUA_TG_PT_ATTR_RO(_name) \ -static struct target_core_alua_tg_pt_gp_attribute \ - target_core_alua_tg_pt_gp_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_alua_tg_pt_gp_show_attr_##_name); +static inline struct t10_alua_tg_pt_gp *to_tg_pt_gp(struct config_item *item) +{ + return container_of(to_config_group(item), struct t10_alua_tg_pt_gp, + tg_pt_gp_group); +} -/* - * alua_access_state - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_state( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item, + char *page) { return sprintf(page, "%d\n", - atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state)); + atomic_read(&to_tg_pt_gp(item)->tg_pt_gp_alua_access_state)); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item, + const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; unsigned long tmp; int new_state, ret; @@ -2010,24 +2356,18 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( return (!ret) ? count : -EINVAL; } -SE_DEV_ALUA_TG_PT_ATTR(alua_access_state, S_IRUGO | S_IWUSR); - -/* - * alua_access_status - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_status( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_access_status_show(struct config_item *item, + char *page) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); return sprintf(page, "%s\n", core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status)); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_access_status_store( + struct config_item *item, const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); unsigned long tmp; int new_status, ret; @@ -2058,43 +2398,31 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status( return count; } -SE_DEV_ALUA_TG_PT_ATTR(alua_access_status, S_IRUGO | S_IWUSR); - -/* - * alua_access_type - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_type( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_access_type_show(struct config_item *item, + char *page) { - return core_alua_show_access_type(tg_pt_gp, page); + return core_alua_show_access_type(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_type( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_access_type_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_access_type(tg_pt_gp, page, count); + return core_alua_store_access_type(to_tg_pt_gp(item), page, count); } -SE_DEV_ALUA_TG_PT_ATTR(alua_access_type, S_IRUGO | S_IWUSR); - -/* - * alua_supported_states - */ - -#define SE_DEV_ALUA_SUPPORT_STATE_SHOW(_name, _var, _bit) \ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_support_##_name( \ - struct t10_alua_tg_pt_gp *t, char *p) \ +#define ALUA_SUPPORTED_STATE_ATTR(_name, _bit) \ +static ssize_t target_tg_pt_gp_alua_support_##_name##_show( \ + struct config_item *item, char *p) \ { \ - return sprintf(p, "%d\n", !!(t->_var & _bit)); \ -} - -#define SE_DEV_ALUA_SUPPORT_STATE_STORE(_name, _var, _bit) \ -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_support_##_name(\ - struct t10_alua_tg_pt_gp *t, const char *p, size_t c) \ + struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ + return sprintf(p, "%d\n", \ + !!(t->tg_pt_gp_alua_supported_states & _bit)); \ +} \ + \ +static ssize_t target_tg_pt_gp_alua_support_##_name##_store( \ + struct config_item *item, const char *p, size_t c) \ { \ + struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ unsigned long tmp; \ int ret; \ \ @@ -2115,70 +2443,32 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_support_##_name(\ return -EINVAL; \ } \ if (tmp) \ - t->_var |= _bit; \ + t->tg_pt_gp_alua_supported_states |= _bit; \ else \ - t->_var &= ~_bit; \ + t->tg_pt_gp_alua_supported_states &= ~_bit; \ \ return c; \ } -SE_DEV_ALUA_SUPPORT_STATE_SHOW(transitioning, - tg_pt_gp_alua_supported_states, ALUA_T_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(transitioning, - tg_pt_gp_alua_supported_states, ALUA_T_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_transitioning, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(offline, - tg_pt_gp_alua_supported_states, ALUA_O_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(offline, - tg_pt_gp_alua_supported_states, ALUA_O_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_offline, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(lba_dependent, - tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(lba_dependent, - tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_lba_dependent, S_IRUGO); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(unavailable, - tg_pt_gp_alua_supported_states, ALUA_U_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(unavailable, - tg_pt_gp_alua_supported_states, ALUA_U_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_unavailable, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(standby, - tg_pt_gp_alua_supported_states, ALUA_S_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(standby, - tg_pt_gp_alua_supported_states, ALUA_S_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_standby, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_optimized, - tg_pt_gp_alua_supported_states, ALUA_AO_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(active_optimized, - tg_pt_gp_alua_supported_states, ALUA_AO_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_optimized, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_nonoptimized, - tg_pt_gp_alua_supported_states, ALUA_AN_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(active_nonoptimized, - tg_pt_gp_alua_supported_states, ALUA_AN_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_nonoptimized, S_IRUGO | S_IWUSR); +ALUA_SUPPORTED_STATE_ATTR(transitioning, ALUA_T_SUP); +ALUA_SUPPORTED_STATE_ATTR(offline, ALUA_O_SUP); +ALUA_SUPPORTED_STATE_ATTR(lba_dependent, ALUA_LBD_SUP); +ALUA_SUPPORTED_STATE_ATTR(unavailable, ALUA_U_SUP); +ALUA_SUPPORTED_STATE_ATTR(standby, ALUA_S_SUP); +ALUA_SUPPORTED_STATE_ATTR(active_optimized, ALUA_AO_SUP); +ALUA_SUPPORTED_STATE_ATTR(active_nonoptimized, ALUA_AN_SUP); -/* - * alua_write_metadata - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_write_metadata( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_write_metadata_show( + struct config_item *item, char *page) { - return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_write_metadata); + return sprintf(page, "%d\n", + to_tg_pt_gp(item)->tg_pt_gp_write_metadata); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_write_metadata( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_write_metadata_store( + struct config_item *item, const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); unsigned long tmp; int ret; @@ -2198,110 +2488,71 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_write_metadata( return count; } -SE_DEV_ALUA_TG_PT_ATTR(alua_write_metadata, S_IRUGO | S_IWUSR); - - - -/* - * nonop_delay_msecs - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_nonop_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_nonop_delay_msecs_show(struct config_item *item, + char *page) { - return core_alua_show_nonop_delay_msecs(tg_pt_gp, page); - + return core_alua_show_nonop_delay_msecs(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_nonop_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_nonop_delay_msecs_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_nonop_delay_msecs(tg_pt_gp, page, count); + return core_alua_store_nonop_delay_msecs(to_tg_pt_gp(item), page, + count); } -SE_DEV_ALUA_TG_PT_ATTR(nonop_delay_msecs, S_IRUGO | S_IWUSR); - -/* - * trans_delay_msecs - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_trans_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_trans_delay_msecs_show(struct config_item *item, + char *page) { - return core_alua_show_trans_delay_msecs(tg_pt_gp, page); + return core_alua_show_trans_delay_msecs(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_trans_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_trans_delay_msecs_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_trans_delay_msecs(tg_pt_gp, page, count); + return core_alua_store_trans_delay_msecs(to_tg_pt_gp(item), page, + count); } -SE_DEV_ALUA_TG_PT_ATTR(trans_delay_msecs, S_IRUGO | S_IWUSR); - -/* - * implicit_trans_secs - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_implicit_trans_secs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_implicit_trans_secs_show( + struct config_item *item, char *page) { - return core_alua_show_implicit_trans_secs(tg_pt_gp, page); + return core_alua_show_implicit_trans_secs(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_implicit_trans_secs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_implicit_trans_secs_store( + struct config_item *item, const char *page, size_t count) { - return core_alua_store_implicit_trans_secs(tg_pt_gp, page, count); + return core_alua_store_implicit_trans_secs(to_tg_pt_gp(item), page, + count); } -SE_DEV_ALUA_TG_PT_ATTR(implicit_trans_secs, S_IRUGO | S_IWUSR); - -/* - * preferred - */ - -static ssize_t target_core_alua_tg_pt_gp_show_attr_preferred( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_preferred_show(struct config_item *item, + char *page) { - return core_alua_show_preferred_bit(tg_pt_gp, page); + return core_alua_show_preferred_bit(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_preferred( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_preferred_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_preferred_bit(tg_pt_gp, page, count); + return core_alua_store_preferred_bit(to_tg_pt_gp(item), page, count); } -SE_DEV_ALUA_TG_PT_ATTR(preferred, S_IRUGO | S_IWUSR); - -/* - * tg_pt_gp_id - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_tg_pt_gp_id( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_tg_pt_gp_id_show(struct config_item *item, + char *page) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); + if (!tg_pt_gp->tg_pt_gp_valid_id) return 0; - return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_tg_pt_gp_id( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_tg_pt_gp_id_store(struct config_item *item, + const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; unsigned long tg_pt_gp_id; int ret; @@ -2330,30 +2581,20 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_tg_pt_gp_id( return count; } -SE_DEV_ALUA_TG_PT_ATTR(tg_pt_gp_id, S_IRUGO | S_IWUSR); - -/* - * members - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_members( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_members_show(struct config_item *item, + char *page) { - struct se_port *port; - struct se_portal_group *tpg; + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); struct se_lun *lun; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; ssize_t len = 0, cur_len; unsigned char buf[TG_PT_GROUP_NAME_BUF]; memset(buf, 0, TG_PT_GROUP_NAME_BUF); spin_lock(&tg_pt_gp->tg_pt_gp_lock); - list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list, - tg_pt_gp_mem_list) { - port = tg_pt_gp_mem->tg_pt; - tpg = port->sep_tpg; - lun = port->sep_lun; + list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list, + lun_tg_pt_gp_link) { + struct se_portal_group *tpg = lun->lun_tpg; cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu" "/%s\n", tpg->se_tpg_tfo->get_fabric_name(), @@ -2375,29 +2616,42 @@ static ssize_t target_core_alua_tg_pt_gp_show_attr_members( return len; } -SE_DEV_ALUA_TG_PT_ATTR_RO(members); - -CONFIGFS_EATTR_OPS(target_core_alua_tg_pt_gp, t10_alua_tg_pt_gp, - tg_pt_gp_group); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_state); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_status); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_type); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_transitioning); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_offline); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_lba_dependent); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_unavailable); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_standby); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_optimized); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_nonoptimized); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_write_metadata); +CONFIGFS_ATTR(target_tg_pt_gp_, nonop_delay_msecs); +CONFIGFS_ATTR(target_tg_pt_gp_, trans_delay_msecs); +CONFIGFS_ATTR(target_tg_pt_gp_, implicit_trans_secs); +CONFIGFS_ATTR(target_tg_pt_gp_, preferred); +CONFIGFS_ATTR(target_tg_pt_gp_, tg_pt_gp_id); +CONFIGFS_ATTR_RO(target_tg_pt_gp_, members); static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { - &target_core_alua_tg_pt_gp_alua_access_state.attr, - &target_core_alua_tg_pt_gp_alua_access_status.attr, - &target_core_alua_tg_pt_gp_alua_access_type.attr, - &target_core_alua_tg_pt_gp_alua_support_transitioning.attr, - &target_core_alua_tg_pt_gp_alua_support_offline.attr, - &target_core_alua_tg_pt_gp_alua_support_lba_dependent.attr, - &target_core_alua_tg_pt_gp_alua_support_unavailable.attr, - &target_core_alua_tg_pt_gp_alua_support_standby.attr, - &target_core_alua_tg_pt_gp_alua_support_active_nonoptimized.attr, - &target_core_alua_tg_pt_gp_alua_support_active_optimized.attr, - &target_core_alua_tg_pt_gp_alua_write_metadata.attr, - &target_core_alua_tg_pt_gp_nonop_delay_msecs.attr, - &target_core_alua_tg_pt_gp_trans_delay_msecs.attr, - &target_core_alua_tg_pt_gp_implicit_trans_secs.attr, - &target_core_alua_tg_pt_gp_preferred.attr, - &target_core_alua_tg_pt_gp_tg_pt_gp_id.attr, - &target_core_alua_tg_pt_gp_members.attr, + &target_tg_pt_gp_attr_alua_access_state, + &target_tg_pt_gp_attr_alua_access_status, + &target_tg_pt_gp_attr_alua_access_type, + &target_tg_pt_gp_attr_alua_support_transitioning, + &target_tg_pt_gp_attr_alua_support_offline, + &target_tg_pt_gp_attr_alua_support_lba_dependent, + &target_tg_pt_gp_attr_alua_support_unavailable, + &target_tg_pt_gp_attr_alua_support_standby, + &target_tg_pt_gp_attr_alua_support_active_nonoptimized, + &target_tg_pt_gp_attr_alua_support_active_optimized, + &target_tg_pt_gp_attr_alua_write_metadata, + &target_tg_pt_gp_attr_nonop_delay_msecs, + &target_tg_pt_gp_attr_trans_delay_msecs, + &target_tg_pt_gp_attr_implicit_trans_secs, + &target_tg_pt_gp_attr_preferred, + &target_tg_pt_gp_attr_tg_pt_gp_id, + &target_tg_pt_gp_attr_members, NULL, }; @@ -2411,8 +2665,6 @@ static void target_core_alua_tg_pt_gp_release(struct config_item *item) static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { .release = target_core_alua_tg_pt_gp_release, - .show_attribute = target_core_alua_tg_pt_gp_attr_show, - .store_attribute = target_core_alua_tg_pt_gp_attr_store, }; static struct config_item_type target_core_alua_tg_pt_gp_cit = { @@ -2526,9 +2778,9 @@ static struct config_group *target_core_make_subdev( const char *name) { struct t10_alua_tg_pt_gp *tg_pt_gp; - struct se_subsystem_api *t; struct config_item *hba_ci = &group->cg_item; struct se_hba *hba = item_to_hba(hba_ci); + struct target_backend *tb = hba->backend; struct se_device *dev; struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL; struct config_group *dev_stat_grp = NULL; @@ -2537,10 +2789,6 @@ static struct config_group *target_core_make_subdev( ret = mutex_lock_interruptible(&hba->hba_access_mutex); if (ret) return ERR_PTR(ret); - /* - * Locate the struct se_subsystem_api from parent's struct se_hba. - */ - t = hba->transport; dev = target_alloc_device(hba, name); if (!dev) @@ -2553,17 +2801,17 @@ static struct config_group *target_core_make_subdev( if (!dev_cg->default_groups) goto out_free_device; - config_group_init_type_name(dev_cg, name, &t->tb_cits.tb_dev_cit); + config_group_init_type_name(dev_cg, name, &tb->tb_dev_cit); config_group_init_type_name(&dev->dev_attrib.da_group, "attrib", - &t->tb_cits.tb_dev_attrib_cit); + &tb->tb_dev_attrib_cit); config_group_init_type_name(&dev->dev_pr_group, "pr", - &t->tb_cits.tb_dev_pr_cit); + &tb->tb_dev_pr_cit); config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn", - &t->tb_cits.tb_dev_wwn_cit); + &tb->tb_dev_wwn_cit); config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group, - "alua", &t->tb_cits.tb_dev_alua_tg_pt_gps_cit); + "alua", &tb->tb_dev_alua_tg_pt_gps_cit); config_group_init_type_name(&dev->dev_stat_grps.stat_group, - "statistics", &t->tb_cits.tb_dev_stat_cit); + "statistics", &tb->tb_dev_stat_cit); dev_cg->default_groups[0] = &dev->dev_attrib.da_group; dev_cg->default_groups[1] = &dev->dev_pr_group; @@ -2674,34 +2922,24 @@ static struct configfs_group_operations target_core_hba_group_ops = { .drop_item = target_core_drop_subdev, }; -CONFIGFS_EATTR_STRUCT(target_core_hba, se_hba); -#define SE_HBA_ATTR(_name, _mode) \ -static struct target_core_hba_attribute \ - target_core_hba_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_hba_show_attr_##_name, \ - target_core_hba_store_attr_##_name); -#define SE_HBA_ATTR_RO(_name) \ -static struct target_core_hba_attribute \ - target_core_hba_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_hba_show_attr_##_name); +static inline struct se_hba *to_hba(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_hba, hba_group); +} -static ssize_t target_core_hba_show_attr_hba_info( - struct se_hba *hba, - char *page) +static ssize_t target_hba_info_show(struct config_item *item, char *page) { + struct se_hba *hba = to_hba(item); + return sprintf(page, "HBA Index: %d plugin: %s version: %s\n", - hba->hba_id, hba->transport->name, - TARGET_CORE_CONFIGFS_VERSION); + hba->hba_id, hba->backend->ops->name, + TARGET_CORE_VERSION); } -SE_HBA_ATTR_RO(hba_info); - -static ssize_t target_core_hba_show_attr_hba_mode(struct se_hba *hba, - char *page) +static ssize_t target_hba_mode_show(struct config_item *item, char *page) { + struct se_hba *hba = to_hba(item); int hba_mode = 0; if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE) @@ -2710,14 +2948,14 @@ static ssize_t target_core_hba_show_attr_hba_mode(struct se_hba *hba, return sprintf(page, "%d\n", hba_mode); } -static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba, - const char *page, size_t count) +static ssize_t target_hba_mode_store(struct config_item *item, + const char *page, size_t count) { - struct se_subsystem_api *transport = hba->transport; + struct se_hba *hba = to_hba(item); unsigned long mode_flag; int ret; - if (transport->pmode_enable_hba == NULL) + if (hba->backend->ops->pmode_enable_hba == NULL) return -EINVAL; ret = kstrtoul(page, 0, &mode_flag); @@ -2731,7 +2969,7 @@ static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba, return -EINVAL; } - ret = transport->pmode_enable_hba(hba, mode_flag); + ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag); if (ret < 0) return -EINVAL; if (ret > 0) @@ -2742,9 +2980,8 @@ static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba, return count; } -SE_HBA_ATTR(hba_mode, S_IRUGO | S_IWUSR); - -CONFIGFS_EATTR_OPS(target_core_hba, se_hba, hba_group); +CONFIGFS_ATTR_RO(target_, hba_info); +CONFIGFS_ATTR(target_, hba_mode); static void target_core_hba_release(struct config_item *item) { @@ -2754,15 +2991,13 @@ static void target_core_hba_release(struct config_item *item) } static struct configfs_attribute *target_core_hba_attrs[] = { - &target_core_hba_hba_info.attr, - &target_core_hba_hba_mode.attr, + &target_attr_hba_info, + &target_attr_hba_mode, NULL, }; static struct configfs_item_operations target_core_hba_item_ops = { .release = target_core_hba_release, - .show_attribute = target_core_hba_attr_show, - .store_attribute = target_core_hba_attr_store, }; static struct config_item_type target_core_hba_cit = { @@ -2857,16 +3092,15 @@ static struct config_item_type target_core_cit = { /* Stop functions for struct config_item_type target_core_hba_cit */ -void target_core_setup_sub_cits(struct se_subsystem_api *sa) +void target_setup_backend_cits(struct target_backend *tb) { - target_core_setup_dev_cit(sa); - target_core_setup_dev_attrib_cit(sa); - target_core_setup_dev_pr_cit(sa); - target_core_setup_dev_wwn_cit(sa); - target_core_setup_dev_alua_tg_pt_gps_cit(sa); - target_core_setup_dev_stat_cit(sa); + target_core_setup_dev_cit(tb); + target_core_setup_dev_attrib_cit(tb); + target_core_setup_dev_pr_cit(tb); + target_core_setup_dev_wwn_cit(tb); + target_core_setup_dev_alua_tg_pt_gps_cit(tb); + target_core_setup_dev_stat_cit(tb); } -EXPORT_SYMBOL(target_core_setup_sub_cits); static int __init target_core_init_configfs(void) { @@ -2968,7 +3202,7 @@ static int __init target_core_init_configfs(void) goto out_global; } pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric" - " Infrastructure: "TARGET_CORE_CONFIGFS_VERSION" on %s/%s" + " Infrastructure: "TARGET_CORE_VERSION" on %s/%s" " on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); /* * Register built-in RAMDISK subsystem logic for virtual LUN 0 diff --git a/kernel/drivers/target/target_core_device.c b/kernel/drivers/target/target_core_device.c index ce5f76818..3436a8356 100644 --- a/kernel/drivers/target/target_core_device.c +++ b/kernel/drivers/target/target_core_device.c @@ -36,8 +36,8 @@ #include <asm/unaligned.h> #include <net/sock.h> #include <net/tcp.h> -#include <scsi/scsi.h> -#include <scsi/scsi_device.h> +#include <scsi/scsi_common.h> +#include <scsi/scsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> @@ -56,48 +56,47 @@ static struct se_hba *lun0_hba; struct se_device *g_lun0_dev; sense_reason_t -transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) +transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) { struct se_lun *se_lun = NULL; struct se_session *se_sess = se_cmd->se_sess; - struct se_device *dev; - unsigned long flags; - - if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) - return TCM_NON_EXISTENT_LUN; - - spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); - se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun]; - if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { - struct se_dev_entry *deve = se_cmd->se_deve; - - deve->total_cmds++; + struct se_node_acl *nacl = se_sess->se_node_acl; + struct se_dev_entry *deve; + sense_reason_t ret = TCM_NO_SENSE; - if ((se_cmd->data_direction == DMA_TO_DEVICE) && - (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { - pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" - " Access for 0x%08x\n", - se_cmd->se_tfo->get_fabric_name(), - unpacked_lun); - spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); - return TCM_WRITE_PROTECTED; - } + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, unpacked_lun); + if (deve) { + atomic_long_inc(&deve->total_cmds); if (se_cmd->data_direction == DMA_TO_DEVICE) - deve->write_bytes += se_cmd->data_length; + atomic_long_add(se_cmd->data_length, + &deve->write_bytes); else if (se_cmd->data_direction == DMA_FROM_DEVICE) - deve->read_bytes += se_cmd->data_length; + atomic_long_add(se_cmd->data_length, + &deve->read_bytes); - se_lun = deve->se_lun; - se_cmd->se_lun = deve->se_lun; + se_lun = rcu_dereference(deve->se_lun); + se_cmd->se_lun = rcu_dereference(deve->se_lun); se_cmd->pr_res_key = deve->pr_res_key; se_cmd->orig_fe_lun = unpacked_lun; se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; percpu_ref_get(&se_lun->lun_ref); se_cmd->lun_ref_active = true; + + if ((se_cmd->data_direction == DMA_TO_DEVICE) && + (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { + pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" + " Access for 0x%08llx\n", + se_cmd->se_tfo->get_fabric_name(), + unpacked_lun); + rcu_read_unlock(); + ret = TCM_WRITE_PROTECTED; + goto ref_dev; + } } - spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); + rcu_read_unlock(); if (!se_lun) { /* @@ -107,76 +106,82 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) */ if (unpacked_lun != 0) { pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" - " Access for 0x%08x\n", + " Access for 0x%08llx\n", se_cmd->se_tfo->get_fabric_name(), unpacked_lun); return TCM_NON_EXISTENT_LUN; } - /* - * Force WRITE PROTECT for virtual LUN 0 - */ - if ((se_cmd->data_direction != DMA_FROM_DEVICE) && - (se_cmd->data_direction != DMA_NONE)) - return TCM_WRITE_PROTECTED; - se_lun = &se_sess->se_tpg->tpg_virt_lun0; - se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0; + se_lun = se_sess->se_tpg->tpg_virt_lun0; + se_cmd->se_lun = se_sess->se_tpg->tpg_virt_lun0; se_cmd->orig_fe_lun = 0; se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; percpu_ref_get(&se_lun->lun_ref); se_cmd->lun_ref_active = true; - } - /* Directly associate cmd with se_dev */ - se_cmd->se_dev = se_lun->lun_se_dev; + /* + * Force WRITE PROTECT for virtual LUN 0 + */ + if ((se_cmd->data_direction != DMA_FROM_DEVICE) && + (se_cmd->data_direction != DMA_NONE)) { + ret = TCM_WRITE_PROTECTED; + goto ref_dev; + } + } + /* + * RCU reference protected by percpu se_lun->lun_ref taken above that + * must drop to zero (including initial reference) before this se_lun + * pointer can be kfree_rcu() by the final se_lun->lun_group put via + * target_core_fabric_configfs.c:target_fabric_port_release + */ +ref_dev: + se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev); + atomic_long_inc(&se_cmd->se_dev->num_cmds); - dev = se_lun->lun_se_dev; - atomic_long_inc(&dev->num_cmds); if (se_cmd->data_direction == DMA_TO_DEVICE) - atomic_long_add(se_cmd->data_length, &dev->write_bytes); + atomic_long_add(se_cmd->data_length, + &se_cmd->se_dev->write_bytes); else if (se_cmd->data_direction == DMA_FROM_DEVICE) - atomic_long_add(se_cmd->data_length, &dev->read_bytes); + atomic_long_add(se_cmd->data_length, + &se_cmd->se_dev->read_bytes); - return 0; + return ret; } EXPORT_SYMBOL(transport_lookup_cmd_lun); -int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun) +int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun) { struct se_dev_entry *deve; struct se_lun *se_lun = NULL; struct se_session *se_sess = se_cmd->se_sess; + struct se_node_acl *nacl = se_sess->se_node_acl; struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; unsigned long flags; - if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) - return -ENODEV; - - spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags); - se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun]; - deve = se_cmd->se_deve; - - if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { - se_tmr->tmr_lun = deve->se_lun; - se_cmd->se_lun = deve->se_lun; - se_lun = deve->se_lun; + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, unpacked_lun); + if (deve) { + se_tmr->tmr_lun = rcu_dereference(deve->se_lun); + se_cmd->se_lun = rcu_dereference(deve->se_lun); + se_lun = rcu_dereference(deve->se_lun); se_cmd->pr_res_key = deve->pr_res_key; se_cmd->orig_fe_lun = unpacked_lun; } - spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); + rcu_read_unlock(); if (!se_lun) { pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN" - " Access for 0x%08x\n", + " Access for 0x%08llx\n", se_cmd->se_tfo->get_fabric_name(), unpacked_lun); return -ENODEV; } - - /* Directly associate cmd with se_dev */ - se_cmd->se_dev = se_lun->lun_se_dev; - se_tmr->tmr_dev = se_lun->lun_se_dev; + /* + * XXX: Add percpu se_lun->lun_ref reference count for TMR + */ + se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev); + se_tmr->tmr_dev = rcu_dereference_raw(se_lun->lun_se_dev); spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags); list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list); @@ -186,9 +191,24 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun) } EXPORT_SYMBOL(transport_lookup_tmr_lun); +bool target_lun_is_rdonly(struct se_cmd *cmd) +{ + struct se_session *se_sess = cmd->se_sess; + struct se_dev_entry *deve; + bool ret; + + rcu_read_lock(); + deve = target_nacl_find_deve(se_sess->se_node_acl, cmd->orig_fe_lun); + ret = (deve && deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY); + rcu_read_unlock(); + + return ret; +} +EXPORT_SYMBOL(target_lun_is_rdonly); + /* * This function is called from core_scsi3_emulate_pro_register_and_move() - * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count + * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_kref * when a matching rtpi is found. */ struct se_dev_entry *core_get_se_deve_from_rtpi( @@ -197,231 +217,239 @@ struct se_dev_entry *core_get_se_deve_from_rtpi( { struct se_dev_entry *deve; struct se_lun *lun; - struct se_port *port; struct se_portal_group *tpg = nacl->se_tpg; - u32 i; - spin_lock_irq(&nacl->device_list_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - deve = nacl->device_list[i]; - - if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) - continue; - - lun = deve->se_lun; + rcu_read_lock(); + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) { + lun = rcu_dereference(deve->se_lun); if (!lun) { pr_err("%s device entries device pointer is" " NULL, but Initiator has access.\n", tpg->se_tpg_tfo->get_fabric_name()); continue; } - port = lun->lun_sep; - if (!port) { - pr_err("%s device entries device pointer is" - " NULL, but Initiator has access.\n", - tpg->se_tpg_tfo->get_fabric_name()); - continue; - } - if (port->sep_rtpi != rtpi) + if (lun->lun_rtpi != rtpi) continue; - atomic_inc_mb(&deve->pr_ref_count); - spin_unlock_irq(&nacl->device_list_lock); + kref_get(&deve->pr_kref); + rcu_read_unlock(); return deve; } - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return NULL; } -int core_free_device_list_for_node( +void core_free_device_list_for_node( struct se_node_acl *nacl, struct se_portal_group *tpg) { struct se_dev_entry *deve; - struct se_lun *lun; - u32 i; - - if (!nacl->device_list) - return 0; - - spin_lock_irq(&nacl->device_list_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - deve = nacl->device_list[i]; - - if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) - continue; - - if (!deve->se_lun) { - pr_err("%s device entries device pointer is" - " NULL, but Initiator has access.\n", - tpg->se_tpg_tfo->get_fabric_name()); - continue; - } - lun = deve->se_lun; - spin_unlock_irq(&nacl->device_list_lock); - core_disable_device_list_for_node(lun, NULL, deve->mapped_lun, - TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); - spin_lock_irq(&nacl->device_list_lock); + mutex_lock(&nacl->lun_entry_mutex); + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) { + struct se_lun *lun = rcu_dereference_check(deve->se_lun, + lockdep_is_held(&nacl->lun_entry_mutex)); + core_disable_device_list_for_node(lun, deve, nacl, tpg); } - spin_unlock_irq(&nacl->device_list_lock); - - array_free(nacl->device_list, TRANSPORT_MAX_LUNS_PER_TPG); - nacl->device_list = NULL; - - return 0; + mutex_unlock(&nacl->lun_entry_mutex); } void core_update_device_list_access( - u32 mapped_lun, + u64 mapped_lun, u32 lun_access, struct se_node_acl *nacl) { struct se_dev_entry *deve; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[mapped_lun]; - if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { - deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; - deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; - } else { - deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; - deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; + mutex_lock(&nacl->lun_entry_mutex); + deve = target_nacl_find_deve(nacl, mapped_lun); + if (deve) { + if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { + deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; + deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; + } else { + deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; + deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; + } } - spin_unlock_irq(&nacl->device_list_lock); + mutex_unlock(&nacl->lun_entry_mutex); } -/* core_enable_device_list_for_node(): - * - * +/* + * Called with rcu_read_lock or nacl->device_list_lock held. */ +struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *nacl, u64 mapped_lun) +{ + struct se_dev_entry *deve; + + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) + if (deve->mapped_lun == mapped_lun) + return deve; + + return NULL; +} +EXPORT_SYMBOL(target_nacl_find_deve); + +void target_pr_kref_release(struct kref *kref) +{ + struct se_dev_entry *deve = container_of(kref, struct se_dev_entry, + pr_kref); + complete(&deve->pr_comp); +} + +static void +target_luns_data_has_changed(struct se_node_acl *nacl, struct se_dev_entry *new, + bool skip_new) +{ + struct se_dev_entry *tmp; + + rcu_read_lock(); + hlist_for_each_entry_rcu(tmp, &nacl->lun_entry_hlist, link) { + if (skip_new && tmp == new) + continue; + core_scsi3_ua_allocate(tmp, 0x3F, + ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED); + } + rcu_read_unlock(); +} + int core_enable_device_list_for_node( struct se_lun *lun, struct se_lun_acl *lun_acl, - u32 mapped_lun, + u64 mapped_lun, u32 lun_access, struct se_node_acl *nacl, struct se_portal_group *tpg) { - struct se_port *port = lun->lun_sep; - struct se_dev_entry *deve; - - spin_lock_irq(&nacl->device_list_lock); - - deve = nacl->device_list[mapped_lun]; - - /* - * Check if the call is handling demo mode -> explicit LUN ACL - * transition. This transition must be for the same struct se_lun - * + mapped_lun that was setup in demo mode.. - */ - if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { - if (deve->se_lun_acl != NULL) { - pr_err("struct se_dev_entry->se_lun_acl" - " already set for demo mode -> explicit" - " LUN ACL transition\n"); - spin_unlock_irq(&nacl->device_list_lock); - return -EINVAL; - } - if (deve->se_lun != lun) { - pr_err("struct se_dev_entry->se_lun does" - " match passed struct se_lun for demo mode" - " -> explicit LUN ACL transition\n"); - spin_unlock_irq(&nacl->device_list_lock); + struct se_dev_entry *orig, *new; + + new = kzalloc(sizeof(*new), GFP_KERNEL); + if (!new) { + pr_err("Unable to allocate se_dev_entry memory\n"); + return -ENOMEM; + } + + atomic_set(&new->ua_count, 0); + spin_lock_init(&new->ua_lock); + INIT_LIST_HEAD(&new->ua_list); + INIT_LIST_HEAD(&new->lun_link); + + new->mapped_lun = mapped_lun; + kref_init(&new->pr_kref); + init_completion(&new->pr_comp); + + if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) + new->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; + else + new->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; + + new->creation_time = get_jiffies_64(); + new->attach_count++; + + mutex_lock(&nacl->lun_entry_mutex); + orig = target_nacl_find_deve(nacl, mapped_lun); + if (orig && orig->se_lun) { + struct se_lun *orig_lun = rcu_dereference_check(orig->se_lun, + lockdep_is_held(&nacl->lun_entry_mutex)); + + if (orig_lun != lun) { + pr_err("Existing orig->se_lun doesn't match new lun" + " for dynamic -> explicit NodeACL conversion:" + " %s\n", nacl->initiatorname); + mutex_unlock(&nacl->lun_entry_mutex); + kfree(new); return -EINVAL; } - deve->se_lun_acl = lun_acl; + BUG_ON(orig->se_lun_acl != NULL); - if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { - deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; - deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; - } else { - deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; - deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; - } + rcu_assign_pointer(new->se_lun, lun); + rcu_assign_pointer(new->se_lun_acl, lun_acl); + hlist_del_rcu(&orig->link); + hlist_add_head_rcu(&new->link, &nacl->lun_entry_hlist); + mutex_unlock(&nacl->lun_entry_mutex); - spin_unlock_irq(&nacl->device_list_lock); - return 0; - } + spin_lock(&lun->lun_deve_lock); + list_del(&orig->lun_link); + list_add_tail(&new->lun_link, &lun->lun_deve_list); + spin_unlock(&lun->lun_deve_lock); - deve->se_lun = lun; - deve->se_lun_acl = lun_acl; - deve->mapped_lun = mapped_lun; - deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS; - - if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) { - deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY; - deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE; - } else { - deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE; - deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY; + kref_put(&orig->pr_kref, target_pr_kref_release); + wait_for_completion(&orig->pr_comp); + + target_luns_data_has_changed(nacl, new, true); + kfree_rcu(orig, rcu_head); + return 0; } - deve->creation_time = get_jiffies_64(); - deve->attach_count++; - spin_unlock_irq(&nacl->device_list_lock); + rcu_assign_pointer(new->se_lun, lun); + rcu_assign_pointer(new->se_lun_acl, lun_acl); + hlist_add_head_rcu(&new->link, &nacl->lun_entry_hlist); + mutex_unlock(&nacl->lun_entry_mutex); - spin_lock_bh(&port->sep_alua_lock); - list_add_tail(&deve->alua_port_list, &port->sep_alua_list); - spin_unlock_bh(&port->sep_alua_lock); + spin_lock(&lun->lun_deve_lock); + list_add_tail(&new->lun_link, &lun->lun_deve_list); + spin_unlock(&lun->lun_deve_lock); + target_luns_data_has_changed(nacl, new, true); return 0; } -/* core_disable_device_list_for_node(): - * - * +/* + * Called with se_node_acl->lun_entry_mutex held. */ -int core_disable_device_list_for_node( +void core_disable_device_list_for_node( struct se_lun *lun, - struct se_lun_acl *lun_acl, - u32 mapped_lun, - u32 lun_access, + struct se_dev_entry *orig, struct se_node_acl *nacl, struct se_portal_group *tpg) { - struct se_port *port = lun->lun_sep; - struct se_dev_entry *deve = nacl->device_list[mapped_lun]; - + /* + * rcu_dereference_raw protected by se_lun->lun_group symlink + * reference to se_device->dev_group. + */ + struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev); /* * If the MappedLUN entry is being disabled, the entry in - * port->sep_alua_list must be removed now before clearing the + * lun->lun_deve_list must be removed now before clearing the * struct se_dev_entry pointers below as logic in * core_alua_do_transition_tg_pt() depends on these being present. * * deve->se_lun_acl will be NULL for demo-mode created LUNs * that have not been explicitly converted to MappedLUNs -> - * struct se_lun_acl, but we remove deve->alua_port_list from - * port->sep_alua_list. This also means that active UAs and + * struct se_lun_acl, but we remove deve->lun_link from + * lun->lun_deve_list. This also means that active UAs and * NodeACL context specific PR metadata for demo-mode * MappedLUN *deve will be released below.. */ - spin_lock_bh(&port->sep_alua_lock); - list_del(&deve->alua_port_list); - spin_unlock_bh(&port->sep_alua_lock); + spin_lock(&lun->lun_deve_lock); + list_del(&orig->lun_link); + spin_unlock(&lun->lun_deve_lock); /* - * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE - * PR operation to complete. + * Disable struct se_dev_entry LUN ACL mapping */ - while (atomic_read(&deve->pr_ref_count) != 0) - cpu_relax(); + core_scsi3_ua_release_all(orig); - spin_lock_irq(&nacl->device_list_lock); + hlist_del_rcu(&orig->link); + clear_bit(DEF_PR_REG_ACTIVE, &orig->deve_flags); + orig->lun_flags = 0; + orig->creation_time = 0; + orig->attach_count--; /* - * Disable struct se_dev_entry LUN ACL mapping + * Before firing off RCU callback, wait for any in process SPEC_I_PT=1 + * or REGISTER_AND_MOVE PR operation to complete. */ - core_scsi3_ua_release_all(deve); - deve->se_lun = NULL; - deve->se_lun_acl = NULL; - deve->lun_flags = 0; - deve->creation_time = 0; - deve->attach_count--; - spin_unlock_irq(&nacl->device_list_lock); - - core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl); - return 0; + kref_put(&orig->pr_kref, target_pr_kref_release); + wait_for_completion(&orig->pr_comp); + + rcu_assign_pointer(orig->se_lun, NULL); + rcu_assign_pointer(orig->se_lun_acl, NULL); + + kfree_rcu(orig, rcu_head); + + core_scsi3_free_pr_reg_from_nacl(dev, nacl); + target_luns_data_has_changed(nacl, NULL, false); } /* core_clear_lun_from_tpg(): @@ -432,53 +460,35 @@ void core_clear_lun_from_tpg(struct se_lun *lun, struct se_portal_group *tpg) { struct se_node_acl *nacl; struct se_dev_entry *deve; - u32 i; - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) { - spin_unlock_irq(&tpg->acl_node_lock); - spin_lock_irq(&nacl->device_list_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - deve = nacl->device_list[i]; - if (lun != deve->se_lun) - continue; - spin_unlock_irq(&nacl->device_list_lock); + mutex_lock(&nacl->lun_entry_mutex); + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) { + struct se_lun *tmp_lun = rcu_dereference_check(deve->se_lun, + lockdep_is_held(&nacl->lun_entry_mutex)); - core_disable_device_list_for_node(lun, NULL, - deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS, - nacl, tpg); + if (lun != tmp_lun) + continue; - spin_lock_irq(&nacl->device_list_lock); + core_disable_device_list_for_node(lun, deve, nacl, tpg); } - spin_unlock_irq(&nacl->device_list_lock); - - spin_lock_irq(&tpg->acl_node_lock); + mutex_unlock(&nacl->lun_entry_mutex); } - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); } -static struct se_port *core_alloc_port(struct se_device *dev) +int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev) { - struct se_port *port, *port_tmp; - - port = kzalloc(sizeof(struct se_port), GFP_KERNEL); - if (!port) { - pr_err("Unable to allocate struct se_port\n"); - return ERR_PTR(-ENOMEM); - } - INIT_LIST_HEAD(&port->sep_alua_list); - INIT_LIST_HEAD(&port->sep_list); - atomic_set(&port->sep_tg_pt_secondary_offline, 0); - spin_lock_init(&port->sep_alua_lock); - mutex_init(&port->sep_tg_pt_md_mutex); + struct se_lun *tmp; spin_lock(&dev->se_port_lock); - if (dev->dev_port_count == 0x0000ffff) { + if (dev->export_count == 0x0000ffff) { pr_warn("Reached dev->dev_port_count ==" " 0x0000ffff\n"); spin_unlock(&dev->se_port_lock); - return ERR_PTR(-ENOSPC); + return -ENOSPC; } again: /* @@ -493,133 +503,23 @@ again: * 2h Relative port 2, historically known as port B * 3h to FFFFh Relative port 3 through 65 535 */ - port->sep_rtpi = dev->dev_rpti_counter++; - if (!port->sep_rtpi) + lun->lun_rtpi = dev->dev_rpti_counter++; + if (!lun->lun_rtpi) goto again; - list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) { + list_for_each_entry(tmp, &dev->dev_sep_list, lun_dev_link) { /* * Make sure RELATIVE TARGET PORT IDENTIFIER is unique * for 16-bit wrap.. */ - if (port->sep_rtpi == port_tmp->sep_rtpi) + if (lun->lun_rtpi == tmp->lun_rtpi) goto again; } spin_unlock(&dev->se_port_lock); - return port; -} - -static void core_export_port( - struct se_device *dev, - struct se_portal_group *tpg, - struct se_port *port, - struct se_lun *lun) -{ - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL; - - spin_lock(&dev->se_port_lock); - spin_lock(&lun->lun_sep_lock); - port->sep_tpg = tpg; - port->sep_lun = lun; - lun->lun_sep = port; - spin_unlock(&lun->lun_sep_lock); - - list_add_tail(&port->sep_list, &dev->dev_sep_list); - spin_unlock(&dev->se_port_lock); - - if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) && - !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) { - tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port); - if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) { - pr_err("Unable to allocate t10_alua_tg_pt" - "_gp_member_t\n"); - return; - } - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, - dev->t10_alua.default_tg_pt_gp); - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - pr_debug("%s/%s: Adding to default ALUA Target Port" - " Group: alua/default_tg_pt_gp\n", - dev->transport->name, tpg->se_tpg_tfo->get_fabric_name()); - } - - dev->dev_port_count++; - port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */ -} - -/* - * Called with struct se_device->se_port_lock spinlock held. - */ -static void core_release_port(struct se_device *dev, struct se_port *port) - __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) -{ - /* - * Wait for any port reference for PR ALL_TG_PT=1 operation - * to complete in __core_scsi3_alloc_registration() - */ - spin_unlock(&dev->se_port_lock); - if (atomic_read(&port->sep_tg_pt_ref_cnt)) - cpu_relax(); - spin_lock(&dev->se_port_lock); - - core_alua_free_tg_pt_gp_mem(port); - - list_del(&port->sep_list); - dev->dev_port_count--; - kfree(port); -} - -int core_dev_export( - struct se_device *dev, - struct se_portal_group *tpg, - struct se_lun *lun) -{ - struct se_hba *hba = dev->se_hba; - struct se_port *port; - - port = core_alloc_port(dev); - if (IS_ERR(port)) - return PTR_ERR(port); - - lun->lun_se_dev = dev; - - spin_lock(&hba->device_lock); - dev->export_count++; - spin_unlock(&hba->device_lock); - - core_export_port(dev, tpg, port, lun); return 0; } -void core_dev_unexport( - struct se_device *dev, - struct se_portal_group *tpg, - struct se_lun *lun) -{ - struct se_hba *hba = dev->se_hba; - struct se_port *port = lun->lun_sep; - - spin_lock(&lun->lun_sep_lock); - if (lun->lun_se_dev == NULL) { - spin_unlock(&lun->lun_sep_lock); - return; - } - spin_unlock(&lun->lun_sep_lock); - - spin_lock(&dev->se_port_lock); - core_release_port(dev, port); - spin_unlock(&dev->se_port_lock); - - spin_lock(&hba->device_lock); - dev->export_count--; - spin_unlock(&hba->device_lock); - - lun->lun_sep = NULL; - lun->lun_se_dev = NULL; -} - static void se_release_vpd_for_dev(struct se_device *dev) { struct t10_vpd *vpd, *vpd_tmp; @@ -651,556 +551,19 @@ static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size) return aligned_max_sectors; } -bool se_dev_check_wce(struct se_device *dev) -{ - bool wce = false; - - if (dev->transport->get_write_cache) - wce = dev->transport->get_write_cache(dev); - else if (dev->dev_attrib.emulate_write_cache > 0) - wce = true; - - return wce; -} - -int se_dev_set_max_unmap_lba_count( - struct se_device *dev, - u32 max_unmap_lba_count) -{ - dev->dev_attrib.max_unmap_lba_count = max_unmap_lba_count; - pr_debug("dev[%p]: Set max_unmap_lba_count: %u\n", - dev, dev->dev_attrib.max_unmap_lba_count); - return 0; -} -EXPORT_SYMBOL(se_dev_set_max_unmap_lba_count); - -int se_dev_set_max_unmap_block_desc_count( - struct se_device *dev, - u32 max_unmap_block_desc_count) -{ - dev->dev_attrib.max_unmap_block_desc_count = - max_unmap_block_desc_count; - pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u\n", - dev, dev->dev_attrib.max_unmap_block_desc_count); - return 0; -} -EXPORT_SYMBOL(se_dev_set_max_unmap_block_desc_count); - -int se_dev_set_unmap_granularity( - struct se_device *dev, - u32 unmap_granularity) -{ - dev->dev_attrib.unmap_granularity = unmap_granularity; - pr_debug("dev[%p]: Set unmap_granularity: %u\n", - dev, dev->dev_attrib.unmap_granularity); - return 0; -} -EXPORT_SYMBOL(se_dev_set_unmap_granularity); - -int se_dev_set_unmap_granularity_alignment( - struct se_device *dev, - u32 unmap_granularity_alignment) -{ - dev->dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment; - pr_debug("dev[%p]: Set unmap_granularity_alignment: %u\n", - dev, dev->dev_attrib.unmap_granularity_alignment); - return 0; -} -EXPORT_SYMBOL(se_dev_set_unmap_granularity_alignment); - -int se_dev_set_max_write_same_len( - struct se_device *dev, - u32 max_write_same_len) -{ - dev->dev_attrib.max_write_same_len = max_write_same_len; - pr_debug("dev[%p]: Set max_write_same_len: %u\n", - dev, dev->dev_attrib.max_write_same_len); - return 0; -} -EXPORT_SYMBOL(se_dev_set_max_write_same_len); - -static void dev_set_t10_wwn_model_alias(struct se_device *dev) -{ - const char *configname; - - configname = config_item_name(&dev->dev_group.cg_item); - if (strlen(configname) >= 16) { - pr_warn("dev[%p]: Backstore name '%s' is too long for " - "INQUIRY_MODEL, truncating to 16 bytes\n", dev, - configname); - } - snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); -} - -int se_dev_set_emulate_model_alias(struct se_device *dev, int flag) -{ - if (dev->export_count) { - pr_err("dev[%p]: Unable to change model alias" - " while export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - - if (flag) { - dev_set_t10_wwn_model_alias(dev); - } else { - strncpy(&dev->t10_wwn.model[0], - dev->transport->inquiry_prod, 16); - } - dev->dev_attrib.emulate_model_alias = flag; - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_model_alias); - -int se_dev_set_emulate_dpo(struct se_device *dev, int flag) -{ - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - - if (flag) { - pr_err("dpo_emulated not supported\n"); - return -EINVAL; - } - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_dpo); - -int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) -{ - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - if (flag && - dev->transport->get_write_cache) { - pr_warn("emulate_fua_write not supported for this device, ignoring\n"); - return 0; - } - if (dev->export_count) { - pr_err("emulate_fua_write cannot be changed with active" - " exports: %d\n", dev->export_count); - return -EINVAL; - } - dev->dev_attrib.emulate_fua_write = flag; - pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n", - dev, dev->dev_attrib.emulate_fua_write); - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_fua_write); - -int se_dev_set_emulate_fua_read(struct se_device *dev, int flag) -{ - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - - if (flag) { - pr_err("ua read emulated not supported\n"); - return -EINVAL; - } - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_fua_read); - -int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) -{ - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - if (flag && - dev->transport->get_write_cache) { - pr_err("emulate_write_cache not supported for this device\n"); - return -EINVAL; - } - if (dev->export_count) { - pr_err("emulate_write_cache cannot be changed with active" - " exports: %d\n", dev->export_count); - return -EINVAL; - } - dev->dev_attrib.emulate_write_cache = flag; - pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", - dev, dev->dev_attrib.emulate_write_cache); - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_write_cache); - -int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1) && (flag != 2)) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device" - " UA_INTRLCK_CTRL while export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - dev->dev_attrib.emulate_ua_intlck_ctrl = flag; - pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n", - dev, dev->dev_attrib.emulate_ua_intlck_ctrl); - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_ua_intlck_ctrl); - -int se_dev_set_emulate_tas(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1)) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device TAS while" - " export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - dev->dev_attrib.emulate_tas = flag; - pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n", - dev, (dev->dev_attrib.emulate_tas) ? "Enabled" : "Disabled"); - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_tas); - -int se_dev_set_emulate_tpu(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1)) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - /* - * We expect this value to be non-zero when generic Block Layer - * Discard supported is detected iblock_create_virtdevice(). - */ - if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { - pr_err("Generic Block Discard not supported\n"); - return -ENOSYS; - } - - dev->dev_attrib.emulate_tpu = flag; - pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n", - dev, flag); - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_tpu); - -int se_dev_set_emulate_tpws(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1)) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - /* - * We expect this value to be non-zero when generic Block Layer - * Discard supported is detected iblock_create_virtdevice(). - */ - if (flag && !dev->dev_attrib.max_unmap_block_desc_count) { - pr_err("Generic Block Discard not supported\n"); - return -ENOSYS; - } - - dev->dev_attrib.emulate_tpws = flag; - pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n", - dev, flag); - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_tpws); - -int se_dev_set_emulate_caw(struct se_device *dev, int flag) -{ - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - dev->dev_attrib.emulate_caw = flag; - pr_debug("dev[%p]: SE Device CompareAndWrite (AtomicTestandSet): %d\n", - dev, flag); - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_caw); - -int se_dev_set_emulate_3pc(struct se_device *dev, int flag) -{ - if (flag != 0 && flag != 1) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - dev->dev_attrib.emulate_3pc = flag; - pr_debug("dev[%p]: SE Device 3rd Party Copy (EXTENDED_COPY): %d\n", - dev, flag); - - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_3pc); - -int se_dev_set_pi_prot_type(struct se_device *dev, int flag) -{ - int rc, old_prot = dev->dev_attrib.pi_prot_type; - - if (flag != 0 && flag != 1 && flag != 2 && flag != 3) { - pr_err("Illegal value %d for pi_prot_type\n", flag); - return -EINVAL; - } - if (flag == 2) { - pr_err("DIF TYPE2 protection currently not supported\n"); - return -ENOSYS; - } - if (dev->dev_attrib.hw_pi_prot_type) { - pr_warn("DIF protection enabled on underlying hardware," - " ignoring\n"); - return 0; - } - if (!dev->transport->init_prot || !dev->transport->free_prot) { - /* 0 is only allowed value for non-supporting backends */ - if (flag == 0) - return 0; - - pr_err("DIF protection not supported by backend: %s\n", - dev->transport->name); - return -ENOSYS; - } - if (!(dev->dev_flags & DF_CONFIGURED)) { - pr_err("DIF protection requires device to be configured\n"); - return -ENODEV; - } - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device PROT type while" - " export_count is %d\n", dev, dev->export_count); - return -EINVAL; - } - - dev->dev_attrib.pi_prot_type = flag; - - if (flag && !old_prot) { - rc = dev->transport->init_prot(dev); - if (rc) { - dev->dev_attrib.pi_prot_type = old_prot; - return rc; - } - - } else if (!flag && old_prot) { - dev->transport->free_prot(dev); - } - pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); - - return 0; -} -EXPORT_SYMBOL(se_dev_set_pi_prot_type); - -int se_dev_set_pi_prot_format(struct se_device *dev, int flag) -{ - int rc; - - if (!flag) - return 0; - - if (flag != 1) { - pr_err("Illegal value %d for pi_prot_format\n", flag); - return -EINVAL; - } - if (!dev->transport->format_prot) { - pr_err("DIF protection format not supported by backend %s\n", - dev->transport->name); - return -ENOSYS; - } - if (!(dev->dev_flags & DF_CONFIGURED)) { - pr_err("DIF protection format requires device to be configured\n"); - return -ENODEV; - } - if (dev->export_count) { - pr_err("dev[%p]: Unable to format SE Device PROT type while" - " export_count is %d\n", dev, dev->export_count); - return -EINVAL; - } - - rc = dev->transport->format_prot(dev); - if (rc) - return rc; - - pr_debug("dev[%p]: SE Device Protection Format complete\n", dev); - - return 0; -} -EXPORT_SYMBOL(se_dev_set_pi_prot_format); - -int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1)) { - pr_err("Illegal value %d\n", flag); - return -EINVAL; - } - dev->dev_attrib.enforce_pr_isids = flag; - pr_debug("dev[%p]: SE Device enforce_pr_isids bit: %s\n", dev, - (dev->dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled"); - return 0; -} -EXPORT_SYMBOL(se_dev_set_enforce_pr_isids); - -int se_dev_set_force_pr_aptpl(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1)) { - printk(KERN_ERR "Illegal value %d\n", flag); - return -EINVAL; - } - if (dev->export_count) { - pr_err("dev[%p]: Unable to set force_pr_aptpl while" - " export_count is %d\n", dev, dev->export_count); - return -EINVAL; - } - - dev->dev_attrib.force_pr_aptpl = flag; - pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", dev, flag); - return 0; -} -EXPORT_SYMBOL(se_dev_set_force_pr_aptpl); - -int se_dev_set_is_nonrot(struct se_device *dev, int flag) -{ - if ((flag != 0) && (flag != 1)) { - printk(KERN_ERR "Illegal value %d\n", flag); - return -EINVAL; - } - dev->dev_attrib.is_nonrot = flag; - pr_debug("dev[%p]: SE Device is_nonrot bit: %d\n", - dev, flag); - return 0; -} -EXPORT_SYMBOL(se_dev_set_is_nonrot); - -int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag) -{ - if (flag != 0) { - printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted" - " reordering not implemented\n", dev); - return -ENOSYS; - } - dev->dev_attrib.emulate_rest_reord = flag; - pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", dev, flag); - return 0; -} -EXPORT_SYMBOL(se_dev_set_emulate_rest_reord); - -/* - * Note, this can only be called on unexported SE Device Object. - */ -int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth) -{ - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device TCQ while" - " export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - if (!queue_depth) { - pr_err("dev[%p]: Illegal ZERO value for queue" - "_depth\n", dev); - return -EINVAL; - } - - if (queue_depth > dev->dev_attrib.queue_depth) { - if (queue_depth > dev->dev_attrib.hw_queue_depth) { - pr_err("dev[%p]: Passed queue_depth:" - " %u exceeds TCM/SE_Device MAX" - " TCQ: %u\n", dev, queue_depth, - dev->dev_attrib.hw_queue_depth); - return -EINVAL; - } - } - dev->dev_attrib.queue_depth = dev->queue_depth = queue_depth; - pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", - dev, queue_depth); - return 0; -} -EXPORT_SYMBOL(se_dev_set_queue_depth); - -int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) -{ - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device" - " optimal_sectors while export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - if (optimal_sectors > dev->dev_attrib.hw_max_sectors) { - pr_err("dev[%p]: Passed optimal_sectors %u cannot be" - " greater than hw_max_sectors: %u\n", dev, - optimal_sectors, dev->dev_attrib.hw_max_sectors); - return -EINVAL; - } - - dev->dev_attrib.optimal_sectors = optimal_sectors; - pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n", - dev, optimal_sectors); - return 0; -} -EXPORT_SYMBOL(se_dev_set_optimal_sectors); - -int se_dev_set_block_size(struct se_device *dev, u32 block_size) -{ - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device block_size" - " while export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - - if ((block_size != 512) && - (block_size != 1024) && - (block_size != 2048) && - (block_size != 4096)) { - pr_err("dev[%p]: Illegal value for block_device: %u" - " for SE device, must be 512, 1024, 2048 or 4096\n", - dev, block_size); - return -EINVAL; - } - - dev->dev_attrib.block_size = block_size; - pr_debug("dev[%p]: SE Device block_size changed to %u\n", - dev, block_size); - - if (dev->dev_attrib.max_bytes_per_io) - dev->dev_attrib.hw_max_sectors = - dev->dev_attrib.max_bytes_per_io / block_size; - - return 0; -} -EXPORT_SYMBOL(se_dev_set_block_size); - -struct se_lun *core_dev_add_lun( +int core_dev_add_lun( struct se_portal_group *tpg, struct se_device *dev, - u32 unpacked_lun) + struct se_lun *lun) { - struct se_lun *lun; int rc; - lun = core_tpg_alloc_lun(tpg, unpacked_lun); - if (IS_ERR(lun)) - return lun; - rc = core_tpg_add_lun(tpg, lun, TRANSPORT_LUNFLAGS_READ_WRITE, dev); if (rc < 0) - return ERR_PTR(rc); + return rc; - pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from" + pr_debug("%s_TPG[%u]_LUN[%llu] - Activated %s Logical Unit from" " CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id); @@ -1210,20 +573,19 @@ struct se_lun *core_dev_add_lun( */ if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) { struct se_node_acl *acl; - spin_lock_irq(&tpg->acl_node_lock); + + mutex_lock(&tpg->acl_node_mutex); list_for_each_entry(acl, &tpg->acl_node_list, acl_list) { if (acl->dynamic_node_acl && (!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only || !tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) { - spin_unlock_irq(&tpg->acl_node_lock); - core_tpg_add_node_to_devs(acl, tpg); - spin_lock_irq(&tpg->acl_node_lock); + core_tpg_add_node_to_devs(acl, tpg, lun); } } - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); } - return lun; + return 0; } /* core_dev_del_lun(): @@ -1234,7 +596,7 @@ void core_dev_del_lun( struct se_portal_group *tpg, struct se_lun *lun) { - pr_debug("%s_TPG[%u]_LUN[%u] - Deactivating %s Logical Unit from" + pr_debug("%s_TPG[%u]_LUN[%llu] - Deactivating %s Logical Unit from" " device object\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, tpg->se_tpg_tfo->get_fabric_name()); @@ -1242,72 +604,10 @@ void core_dev_del_lun( core_tpg_remove_lun(tpg, lun); } -struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun) -{ - struct se_lun *lun; - - spin_lock(&tpg->tpg_lun_lock); - if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { - pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS" - "_PER_TPG-1: %u for Target Portal Group: %hu\n", - tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, - TRANSPORT_MAX_LUNS_PER_TPG-1, - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock(&tpg->tpg_lun_lock); - return NULL; - } - lun = tpg->tpg_lun_list[unpacked_lun]; - - if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) { - pr_err("%s Logical Unit Number: %u is not free on" - " Target Portal Group: %hu, ignoring request.\n", - tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock(&tpg->tpg_lun_lock); - return NULL; - } - spin_unlock(&tpg->tpg_lun_lock); - - return lun; -} - -/* core_dev_get_lun(): - * - * - */ -static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun) -{ - struct se_lun *lun; - - spin_lock(&tpg->tpg_lun_lock); - if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { - pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER" - "_TPG-1: %u for Target Portal Group: %hu\n", - tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, - TRANSPORT_MAX_LUNS_PER_TPG-1, - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock(&tpg->tpg_lun_lock); - return NULL; - } - lun = tpg->tpg_lun_list[unpacked_lun]; - - if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) { - pr_err("%s Logical Unit Number: %u is not active on" - " Target Portal Group: %hu, ignoring request.\n", - tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock(&tpg->tpg_lun_lock); - return NULL; - } - spin_unlock(&tpg->tpg_lun_lock); - - return lun; -} - struct se_lun_acl *core_dev_init_initiator_node_lun_acl( struct se_portal_group *tpg, struct se_node_acl *nacl, - u32 mapped_lun, + u64 mapped_lun, int *ret) { struct se_lun_acl *lacl; @@ -1325,11 +625,8 @@ struct se_lun_acl *core_dev_init_initiator_node_lun_acl( return NULL; } - INIT_LIST_HEAD(&lacl->lacl_list); lacl->mapped_lun = mapped_lun; lacl->se_lun_nacl = nacl; - snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", - nacl->initiatorname); return lacl; } @@ -1337,22 +634,16 @@ struct se_lun_acl *core_dev_init_initiator_node_lun_acl( int core_dev_add_initiator_node_lun_acl( struct se_portal_group *tpg, struct se_lun_acl *lacl, - u32 unpacked_lun, + struct se_lun *lun, u32 lun_access) { - struct se_lun *lun; - struct se_node_acl *nacl; - - lun = core_dev_get_lun(tpg, unpacked_lun); - if (!lun) { - pr_err("%s Logical Unit Number: %u is not active on" - " Target Portal Group: %hu, ignoring request.\n", - tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - return -EINVAL; - } + struct se_node_acl *nacl = lacl->se_lun_nacl; + /* + * rcu_dereference_raw protected by se_lun->lun_group symlink + * reference to se_device->dev_group. + */ + struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev); - nacl = lacl->se_lun_nacl; if (!nacl) return -EINVAL; @@ -1366,55 +657,43 @@ int core_dev_add_initiator_node_lun_acl( lun_access, nacl, tpg) < 0) return -EINVAL; - spin_lock(&lun->lun_acl_lock); - list_add_tail(&lacl->lacl_list, &lun->lun_acl_list); - atomic_inc_mb(&lun->lun_acl_count); - spin_unlock(&lun->lun_acl_lock); - - pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for " + pr_debug("%s_TPG[%hu]_LUN[%llu->%llu] - Added %s ACL for " " InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(), - tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, lacl->mapped_lun, + tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, lacl->mapped_lun, (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO", - lacl->initiatorname); + nacl->initiatorname); /* * Check to see if there are any existing persistent reservation APTPL * pre-registrations that need to be enabled for this LUN ACL.. */ - core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, nacl, + core_scsi3_check_aptpl_registration(dev, tpg, lun, nacl, lacl->mapped_lun); return 0; } -/* core_dev_del_initiator_node_lun_acl(): - * - * - */ int core_dev_del_initiator_node_lun_acl( - struct se_portal_group *tpg, struct se_lun *lun, struct se_lun_acl *lacl) { + struct se_portal_group *tpg = lun->lun_tpg; struct se_node_acl *nacl; + struct se_dev_entry *deve; nacl = lacl->se_lun_nacl; if (!nacl) return -EINVAL; - spin_lock(&lun->lun_acl_lock); - list_del(&lacl->lacl_list); - atomic_dec_mb(&lun->lun_acl_count); - spin_unlock(&lun->lun_acl_lock); - - core_disable_device_list_for_node(lun, NULL, lacl->mapped_lun, - TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); - - lacl->se_lun = NULL; + mutex_lock(&nacl->lun_entry_mutex); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (deve) + core_disable_device_list_for_node(lun, deve, nacl, tpg); + mutex_unlock(&nacl->lun_entry_mutex); - pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for" - " InitiatorNode: %s Mapped LUN: %u\n", + pr_debug("%s_TPG[%hu]_LUN[%llu] - Removed ACL for" + " InitiatorNode: %s Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, - lacl->initiatorname, lacl->mapped_lun); + nacl->initiatorname, lacl->mapped_lun); return 0; } @@ -1424,10 +703,10 @@ void core_dev_free_initiator_node_lun_acl( struct se_lun_acl *lacl) { pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s" - " Mapped LUN: %u\n", tpg->se_tpg_tfo->get_fabric_name(), + " Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), tpg->se_tpg_tfo->get_fabric_name(), - lacl->initiatorname, lacl->mapped_lun); + lacl->se_lun_nacl->initiatorname, lacl->mapped_lun); kfree(lacl); } @@ -1473,14 +752,15 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) struct se_device *dev; struct se_lun *xcopy_lun; - dev = hba->transport->alloc_device(hba, name); + dev = hba->backend->ops->alloc_device(hba, name); if (!dev) return NULL; dev->dev_link_magic = SE_DEV_LINK_MAGIC; dev->se_hba = hba; - dev->transport = hba->transport; - dev->prot_length = sizeof(struct se_dif_v1_tuple); + dev->transport = hba->backend->ops; + dev->prot_length = sizeof(struct t10_pi_tuple); + dev->hba_index = hba->hba_index; INIT_LIST_HEAD(&dev->dev_list); INIT_LIST_HEAD(&dev->dev_sep_list); @@ -1496,7 +776,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) spin_lock_init(&dev->se_tmr_lock); spin_lock_init(&dev->qf_cmd_lock); sema_init(&dev->caw_sem, 1); - atomic_set(&dev->dev_ordered_id, 0); INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list); spin_lock_init(&dev->t10_wwn.t10_vpd_lock); INIT_LIST_HEAD(&dev->t10_pr.registration_list); @@ -1513,9 +792,9 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) dev->dev_attrib.da_dev = dev; dev->dev_attrib.emulate_model_alias = DA_EMULATE_MODEL_ALIAS; - dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO; - dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE; - dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ; + dev->dev_attrib.emulate_dpo = 1; + dev->dev_attrib.emulate_fua_write = 1; + dev->dev_attrib.emulate_fua_read = 1; dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE; dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL; dev->dev_attrib.emulate_tas = DA_EMULATE_TAS; @@ -1537,16 +816,59 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN; xcopy_lun = &dev->xcopy_lun; - xcopy_lun->lun_se_dev = dev; - init_completion(&xcopy_lun->lun_shutdown_comp); - INIT_LIST_HEAD(&xcopy_lun->lun_acl_list); - spin_lock_init(&xcopy_lun->lun_acl_lock); - spin_lock_init(&xcopy_lun->lun_sep_lock); + rcu_assign_pointer(xcopy_lun->lun_se_dev, dev); init_completion(&xcopy_lun->lun_ref_comp); + INIT_LIST_HEAD(&xcopy_lun->lun_deve_list); + INIT_LIST_HEAD(&xcopy_lun->lun_dev_link); + mutex_init(&xcopy_lun->lun_tg_pt_md_mutex); + xcopy_lun->lun_tpg = &xcopy_pt_tpg; return dev; } +/* + * Check if the underlying struct block_device request_queue supports + * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM + * in ATA and we need to set TPE=1 + */ +bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, + struct request_queue *q, int block_size) +{ + if (!blk_queue_discard(q)) + return false; + + attrib->max_unmap_lba_count = (q->limits.max_discard_sectors << 9) / + block_size; + /* + * Currently hardcoded to 1 in Linux/SCSI code.. + */ + attrib->max_unmap_block_desc_count = 1; + attrib->unmap_granularity = q->limits.discard_granularity / block_size; + attrib->unmap_granularity_alignment = q->limits.discard_alignment / + block_size; + return true; +} +EXPORT_SYMBOL(target_configure_unmap_from_queue); + +/* + * Convert from blocksize advertised to the initiator to the 512 byte + * units unconditionally used by the Linux block layer. + */ +sector_t target_to_linux_sector(struct se_device *dev, sector_t lb) +{ + switch (dev->dev_attrib.block_size) { + case 4096: + return lb << 3; + case 2048: + return lb << 2; + case 1024: + return lb << 1; + default: + return lb; + } +} +EXPORT_SYMBOL(target_to_linux_sector); + int target_configure_device(struct se_device *dev) { struct se_hba *hba = dev->se_hba; @@ -1679,7 +1001,7 @@ int core_dev_setup_virtual_lun0(void) goto out_free_hba; } - hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf)); + hba->backend->ops->set_configfs_dev_params(dev, buf, sizeof(buf)); ret = target_configure_device(dev); if (ret) diff --git a/kernel/drivers/target/target_core_fabric_configfs.c b/kernel/drivers/target/target_core_fabric_configfs.c index 1f7886bb1..f916d18cc 100644 --- a/kernel/drivers/target/target_core_fabric_configfs.c +++ b/kernel/drivers/target/target_core_fabric_configfs.c @@ -35,9 +35,6 @@ #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_fabric_configfs.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "target_core_internal.h" #include "target_core_alua.h" @@ -46,27 +43,25 @@ #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ { \ - struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ - struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ + struct config_item_type *cit = &tf->tf_##_name##_cit; \ \ cit->ct_item_ops = _item_ops; \ cit->ct_group_ops = _group_ops; \ cit->ct_attrs = _attrs; \ - cit->ct_owner = tf->tf_module; \ + cit->ct_owner = tf->tf_ops->module; \ pr_debug("Setup generic %s\n", __stringify(_name)); \ } #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ { \ - struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ - struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ - struct configfs_attribute **attrs = tf->tf_ops.tfc_##_name##_attrs; \ + struct config_item_type *cit = &tf->tf_##_name##_cit; \ + struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \ \ cit->ct_item_ops = _item_ops; \ cit->ct_group_ops = _group_ops; \ cit->ct_attrs = attrs; \ - cit->ct_owner = tf->tf_module; \ + cit->ct_owner = tf->tf_ops->module; \ pr_debug("Setup generic %s\n", __stringify(_name)); \ } @@ -83,7 +78,7 @@ static int target_fabric_mappedlun_link( struct se_lun_acl, se_lun_group); struct se_portal_group *se_tpg; struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; - int ret = 0, lun_access; + int lun_access; if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" @@ -93,12 +88,11 @@ static int target_fabric_mappedlun_link( /* * Ensure that the source port exists */ - if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { - pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" - "_tpg does not exist\n"); + if (!lun->lun_se_dev) { + pr_err("Source se_lun->lun_se_dev does not exist\n"); return -EINVAL; } - se_tpg = lun->lun_sep->sep_tpg; + se_tpg = lun->lun_tpg; nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; tpg_ci = &nacl_ci->ci_group->cg_item; @@ -125,81 +119,66 @@ static int target_fabric_mappedlun_link( * which be will write protected (READ-ONLY) when * tpg_1/attrib/demo_mode_write_protect=1 */ - spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); - deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun]; - if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) + rcu_read_lock(); + deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); + if (deve) lun_access = deve->lun_flags; else lun_access = (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : TRANSPORT_LUNFLAGS_READ_WRITE; - spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); + rcu_read_unlock(); /* * Determine the actual mapped LUN value user wants.. * * This value is what the SCSI Initiator actually sees the - * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. + * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. */ - ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, - lun->unpacked_lun, lun_access); - - return (ret < 0) ? -EINVAL : 0; + return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access); } static int target_fabric_mappedlun_unlink( struct config_item *lun_acl_ci, struct config_item *lun_ci) { - struct se_lun *lun; struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), struct se_lun_acl, se_lun_group); - struct se_node_acl *nacl = lacl->se_lun_nacl; - struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun]; - struct se_portal_group *se_tpg; - /* - * Determine if the underlying MappedLUN has already been released.. - */ - if (!deve->se_lun) - return 0; - - lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); - se_tpg = lun->lun_sep->sep_tpg; + struct se_lun *lun = container_of(to_config_group(lun_ci), + struct se_lun, lun_group); - core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); - return 0; + return core_dev_del_initiator_node_lun_acl(lun, lacl); } -CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); -#define TCM_MAPPEDLUN_ATTR(_name, _mode) \ -static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_fabric_mappedlun_show_##_name, \ - target_fabric_mappedlun_store_##_name); +static struct se_lun_acl *item_to_lun_acl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_lun_acl, + se_lun_group); +} -static ssize_t target_fabric_mappedlun_show_write_protect( - struct se_lun_acl *lacl, - char *page) +static ssize_t target_fabric_mappedlun_write_protect_show( + struct config_item *item, char *page) { + struct se_lun_acl *lacl = item_to_lun_acl(item); struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; - ssize_t len; + ssize_t len = 0; - spin_lock_irq(&se_nacl->device_list_lock); - deve = se_nacl->device_list[lacl->mapped_lun]; - len = sprintf(page, "%d\n", - (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? - 1 : 0); - spin_unlock_irq(&se_nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); + if (deve) { + len = sprintf(page, "%d\n", + (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); + } + rcu_read_unlock(); return len; } -static ssize_t target_fabric_mappedlun_store_write_protect( - struct se_lun_acl *lacl, - const char *page, - size_t count) +static ssize_t target_fabric_mappedlun_write_protect_store( + struct config_item *item, const char *page, size_t count) { + struct se_lun_acl *lacl = item_to_lun_acl(item); struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_portal_group *se_tpg = se_nacl->se_tpg; unsigned long op; @@ -218,17 +197,20 @@ static ssize_t target_fabric_mappedlun_store_write_protect( lacl->se_lun_nacl); pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" - " Mapped LUN: %u Write Protect bit to %s\n", + " Mapped LUN: %llu Write Protect bit to %s\n", se_tpg->se_tpg_tfo->get_fabric_name(), - lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); + se_nacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); return count; } -TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(target_fabric_mappedlun_, write_protect); -CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); +static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { + &target_fabric_mappedlun_attr_write_protect, + NULL, +}; static void target_fabric_mappedlun_release(struct config_item *item) { @@ -239,15 +221,8 @@ static void target_fabric_mappedlun_release(struct config_item *item) core_dev_free_initiator_node_lun_acl(se_tpg, lacl); } -static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { - &target_fabric_mappedlun_write_protect.attr, - NULL, -}; - static struct configfs_item_operations target_fabric_mappedlun_item_ops = { .release = target_fabric_mappedlun_release, - .show_attribute = target_fabric_mappedlun_attr_show, - .store_attribute = target_fabric_mappedlun_attr_store, .allow_link = target_fabric_mappedlun_link, .drop_link = target_fabric_mappedlun_unlink, }; @@ -283,49 +258,12 @@ TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, /* End of tfc_tpg_mappedlun_port_cit */ -/* Start of tfc_tpg_nacl_attrib_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); - -static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { - .show_attribute = target_fabric_nacl_attrib_attr_show, - .store_attribute = target_fabric_nacl_attrib_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL); - -/* End of tfc_tpg_nacl_attrib_cit */ - -/* Start of tfc_tpg_nacl_auth_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); - -static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { - .show_attribute = target_fabric_nacl_auth_attr_show, - .store_attribute = target_fabric_nacl_auth_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL); - -/* End of tfc_tpg_nacl_auth_cit */ - -/* Start of tfc_tpg_nacl_param_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); - -static struct configfs_item_operations target_fabric_nacl_param_item_ops = { - .show_attribute = target_fabric_nacl_param_attr_show, - .store_attribute = target_fabric_nacl_param_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL); - -/* End of tfc_tpg_nacl_param_cit */ +TF_CIT_SETUP_DRV(tpg_nacl_attrib, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_nacl_auth, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_nacl_param, NULL, NULL); /* Start of tfc_tpg_nacl_base_cit */ -CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); - static struct config_group *target_fabric_make_mappedlun( struct config_group *group, const char *name) @@ -338,7 +276,7 @@ static struct config_group *target_fabric_make_mappedlun( struct config_item *acl_ci; struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; char *buf; - unsigned long mapped_lun; + unsigned long long mapped_lun; int ret = 0; acl_ci = &group->cg_item; @@ -366,21 +304,9 @@ static struct config_group *target_fabric_make_mappedlun( * Determine the Mapped LUN value. This is what the SCSI Initiator * Port will actually see. */ - ret = kstrtoul(buf + 4, 0, &mapped_lun); + ret = kstrtoull(buf + 4, 0, &mapped_lun); if (ret) goto out; - if (mapped_lun > UINT_MAX) { - ret = -EINVAL; - goto out; - } - if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { - pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" - "-1: %u for Target Portal Group: %u\n", mapped_lun, - TRANSPORT_MAX_LUNS_PER_TPG-1, - se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); - ret = -EINVAL; - goto out; - } lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, mapped_lun, &ret); @@ -399,9 +325,9 @@ static struct config_group *target_fabric_make_mappedlun( } config_group_init_type_name(&lacl->se_lun_group, name, - &tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit); + &tf->tf_tpg_mappedlun_cit); config_group_init_type_name(&lacl->ml_stat_grps.stat_group, - "statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit); + "statistics", &tf->tf_tpg_mappedlun_stat_cit); lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; lacl_cg->default_groups[1] = NULL; @@ -458,16 +384,15 @@ static void target_fabric_nacl_base_release(struct config_item *item) { struct se_node_acl *se_nacl = container_of(to_config_group(item), struct se_node_acl, acl_group); - struct se_portal_group *se_tpg = se_nacl->se_tpg; - struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; + struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf; - tf->tf_ops.fabric_drop_nodeacl(se_nacl); + if (tf->tf_ops->fabric_cleanup_nodeacl) + tf->tf_ops->fabric_cleanup_nodeacl(se_nacl); + core_tpg_del_initiator_node_acl(se_nacl); } static struct configfs_item_operations target_fabric_nacl_base_item_ops = { .release = target_fabric_nacl_base_release, - .show_attribute = target_fabric_nacl_base_attr_show, - .store_attribute = target_fabric_nacl_base_attr_store, }; static struct configfs_group_operations target_fabric_nacl_base_group_ops = { @@ -501,15 +426,18 @@ static struct config_group *target_fabric_make_nodeacl( struct se_node_acl *se_nacl; struct config_group *nacl_cg; - if (!tf->tf_ops.fabric_make_nodeacl) { - pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); - return ERR_PTR(-ENOSYS); - } - - se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); + se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); if (IS_ERR(se_nacl)) return ERR_CAST(se_nacl); + if (tf->tf_ops->fabric_init_nodeacl) { + int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); + if (ret) { + core_tpg_del_initiator_node_acl(se_nacl); + return ERR_PTR(ret); + } + } + nacl_cg = &se_nacl->acl_group; nacl_cg->default_groups = se_nacl->acl_default_groups; nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; @@ -519,16 +447,15 @@ static struct config_group *target_fabric_make_nodeacl( nacl_cg->default_groups[4] = NULL; config_group_init_type_name(&se_nacl->acl_group, name, - &tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit); + &tf->tf_tpg_nacl_base_cit); config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", - &tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit); + &tf->tf_tpg_nacl_attrib_cit); config_group_init_type_name(&se_nacl->acl_auth_group, "auth", - &tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit); + &tf->tf_tpg_nacl_auth_cit); config_group_init_type_name(&se_nacl->acl_param_group, "param", - &tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit); + &tf->tf_tpg_nacl_param_cit); config_group_init_type_name(&se_nacl->acl_fabric_stat_group, - "fabric_statistics", - &tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit); + "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); return &se_nacl->acl_group; } @@ -566,8 +493,6 @@ TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); /* Start of tfc_tpg_np_base_cit */ -CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); - static void target_fabric_np_base_release(struct config_item *item) { struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), @@ -575,13 +500,11 @@ static void target_fabric_np_base_release(struct config_item *item) struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; - tf->tf_ops.fabric_drop_np(se_tpg_np); + tf->tf_ops->fabric_drop_np(se_tpg_np); } static struct configfs_item_operations target_fabric_np_base_item_ops = { .release = target_fabric_np_base_release, - .show_attribute = target_fabric_np_base_attr_show, - .store_attribute = target_fabric_np_base_attr_store, }; TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); @@ -599,18 +522,18 @@ static struct config_group *target_fabric_make_np( struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct se_tpg_np *se_tpg_np; - if (!tf->tf_ops.fabric_make_np) { + if (!tf->tf_ops->fabric_make_np) { pr_err("tf->tf_ops.fabric_make_np is NULL\n"); return ERR_PTR(-ENOSYS); } - se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); + se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); if (!se_tpg_np || IS_ERR(se_tpg_np)) return ERR_PTR(-EINVAL); se_tpg_np->tpg_np_parent = se_tpg; config_group_init_type_name(&se_tpg_np->tpg_np_group, name, - &tf->tf_cit_tmpl.tfc_tpg_np_base_cit); + &tf->tf_tpg_np_base_cit); return &se_tpg_np->tpg_np_group; } @@ -636,132 +559,113 @@ TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); /* Start of tfc_tpg_port_cit */ -CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); -#define TCM_PORT_ATTR(_name, _mode) \ -static struct target_fabric_port_attribute target_fabric_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_fabric_port_show_attr_##_name, \ - target_fabric_port_store_attr_##_name); - -#define TCM_PORT_ATTOR_RO(_name) \ - __CONFIGFS_EATTR_RO(_name, \ - target_fabric_port_show_attr_##_name); +static struct se_lun *item_to_lun(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_lun, + lun_group); +} -/* - * alua_tg_pt_gp - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_gp_show(struct config_item *item, + char *page) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; - return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); + return core_alua_show_tg_pt_gp_info(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_gp_store(struct config_item *item, + const char *page, size_t count) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; - return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); + return core_alua_store_tg_pt_gp_info(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_offline - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_offline_show( + struct config_item *item, char *page) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_offline_bit(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_offline_store( + struct config_item *item, const char *page, size_t count) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_offline_bit(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_status - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_status_show( + struct config_item *item, char *page) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_secondary_status(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_status_store( + struct config_item *item, const char *page, size_t count) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_secondary_status(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_write_md - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_write_md_show( + struct config_item *item, char *page) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_secondary_write_metadata(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_write_md_store( + struct config_item *item, const char *page, size_t count) { - if (!lun || !lun->lun_sep) + struct se_lun *lun = item_to_lun(item); + + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_secondary_write_metadata(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); - +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_gp); +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_offline); +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_status); +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_write_md); static struct configfs_attribute *target_fabric_port_attrs[] = { - &target_fabric_port_alua_tg_pt_gp.attr, - &target_fabric_port_alua_tg_pt_offline.attr, - &target_fabric_port_alua_tg_pt_status.attr, - &target_fabric_port_alua_tg_pt_write_md.attr, + &target_fabric_port_attr_alua_tg_pt_gp, + &target_fabric_port_attr_alua_tg_pt_offline, + &target_fabric_port_attr_alua_tg_pt_status, + &target_fabric_port_attr_alua_tg_pt_write_md, NULL, }; -CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); - static int target_fabric_port_link( struct config_item *lun_ci, struct config_item *se_dev_ci) @@ -769,7 +673,6 @@ static int target_fabric_port_link( struct config_item *tpg_ci; struct se_lun *lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); - struct se_lun *lun_p; struct se_portal_group *se_tpg; struct se_device *dev = container_of(to_config_group(se_dev_ci), struct se_device, dev_group); @@ -797,20 +700,19 @@ static int target_fabric_port_link( return -EEXIST; } - lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); - if (IS_ERR(lun_p)) { - pr_err("core_dev_add_lun() failed\n"); - ret = PTR_ERR(lun_p); + ret = core_dev_add_lun(se_tpg, dev, lun); + if (ret) { + pr_err("core_dev_add_lun() failed: %d\n", ret); goto out; } - if (tf->tf_ops.fabric_post_link) { + if (tf->tf_ops->fabric_post_link) { /* * Call the optional fabric_post_link() to allow a * fabric module to setup any additional state once * core_dev_add_lun() has been called.. */ - tf->tf_ops.fabric_post_link(se_tpg, lun); + tf->tf_ops->fabric_post_link(se_tpg, lun); } return 0; @@ -824,25 +726,32 @@ static int target_fabric_port_unlink( { struct se_lun *lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); - struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; + struct se_portal_group *se_tpg = lun->lun_tpg; struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; - if (tf->tf_ops.fabric_pre_unlink) { + if (tf->tf_ops->fabric_pre_unlink) { /* * Call the optional fabric_pre_unlink() to allow a * fabric module to release any additional stat before * core_dev_del_lun() is called. */ - tf->tf_ops.fabric_pre_unlink(se_tpg, lun); + tf->tf_ops->fabric_pre_unlink(se_tpg, lun); } core_dev_del_lun(se_tpg, lun); return 0; } +static void target_fabric_port_release(struct config_item *item) +{ + struct se_lun *lun = container_of(to_config_group(item), + struct se_lun, lun_group); + + kfree_rcu(lun, rcu_head); +} + static struct configfs_item_operations target_fabric_port_item_ops = { - .show_attribute = target_fabric_port_attr_show, - .store_attribute = target_fabric_port_attr_store, + .release = target_fabric_port_release, .allow_link = target_fabric_port_link, .drop_link = target_fabric_port_unlink, }; @@ -887,7 +796,7 @@ static struct config_group *target_fabric_make_lun( struct se_portal_group, tpg_lun_group); struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct config_group *lun_cg = NULL, *port_stat_grp = NULL; - unsigned long unpacked_lun; + unsigned long long unpacked_lun; int errno; if (strstr(name, "lun_") != name) { @@ -895,28 +804,27 @@ static struct config_group *target_fabric_make_lun( " \"lun_$LUN_NUMBER\"\n"); return ERR_PTR(-EINVAL); } - errno = kstrtoul(name + 4, 0, &unpacked_lun); + errno = kstrtoull(name + 4, 0, &unpacked_lun); if (errno) return ERR_PTR(errno); - if (unpacked_lun > UINT_MAX) - return ERR_PTR(-EINVAL); - lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); - if (!lun) - return ERR_PTR(-EINVAL); + lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); + if (IS_ERR(lun)) + return ERR_CAST(lun); lun_cg = &lun->lun_group; lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, GFP_KERNEL); if (!lun_cg->default_groups) { pr_err("Unable to allocate lun_cg->default_groups\n"); + kfree(lun); return ERR_PTR(-ENOMEM); } config_group_init_type_name(&lun->lun_group, name, - &tf->tf_cit_tmpl.tfc_tpg_port_cit); + &tf->tf_tpg_port_cit); config_group_init_type_name(&lun->port_stat_grps.stat_group, - "statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit); + "statistics", &tf->tf_tpg_port_stat_cit); lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; lun_cg->default_groups[1] = NULL; @@ -926,6 +834,7 @@ static struct config_group *target_fabric_make_lun( if (!port_stat_grp->default_groups) { pr_err("Unable to allocate port_stat_grp->default_groups\n"); kfree(lun_cg->default_groups); + kfree(lun); return ERR_PTR(-ENOMEM); } target_stat_setup_port_default_groups(lun); @@ -971,50 +880,11 @@ TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); /* End of tfc_tpg_lun_cit */ -/* Start of tfc_tpg_attrib_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); - -static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { - .show_attribute = target_fabric_tpg_attrib_attr_show, - .store_attribute = target_fabric_tpg_attrib_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL); - -/* End of tfc_tpg_attrib_cit */ - -/* Start of tfc_tpg_auth_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); - -static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { - .show_attribute = target_fabric_tpg_auth_attr_show, - .store_attribute = target_fabric_tpg_auth_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL); - -/* End of tfc_tpg_attrib_cit */ - -/* Start of tfc_tpg_param_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); - -static struct configfs_item_operations target_fabric_tpg_param_item_ops = { - .show_attribute = target_fabric_tpg_param_attr_show, - .store_attribute = target_fabric_tpg_param_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_param, &target_fabric_tpg_param_item_ops, NULL); - -/* End of tfc_tpg_param_cit */ +TF_CIT_SETUP_DRV(tpg_attrib, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_auth, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_param, NULL, NULL); /* Start of tfc_tpg_base_cit */ -/* - * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() - */ -CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); static void target_fabric_tpg_release(struct config_item *item) { @@ -1023,13 +893,11 @@ static void target_fabric_tpg_release(struct config_item *item) struct se_wwn *wwn = se_tpg->se_tpg_wwn; struct target_fabric_configfs *tf = wwn->wwn_tf; - tf->tf_ops.fabric_drop_tpg(se_tpg); + tf->tf_ops->fabric_drop_tpg(se_tpg); } static struct configfs_item_operations target_fabric_tpg_base_item_ops = { .release = target_fabric_tpg_release, - .show_attribute = target_fabric_tpg_attr_show, - .store_attribute = target_fabric_tpg_attr_store, }; TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); @@ -1046,12 +914,12 @@ static struct config_group *target_fabric_make_tpg( struct target_fabric_configfs *tf = wwn->wwn_tf; struct se_portal_group *se_tpg; - if (!tf->tf_ops.fabric_make_tpg) { - pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); + if (!tf->tf_ops->fabric_make_tpg) { + pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); return ERR_PTR(-ENOSYS); } - se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); + se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); if (!se_tpg || IS_ERR(se_tpg)) return ERR_PTR(-EINVAL); /* @@ -1067,19 +935,19 @@ static struct config_group *target_fabric_make_tpg( se_tpg->tpg_group.default_groups[6] = NULL; config_group_init_type_name(&se_tpg->tpg_group, name, - &tf->tf_cit_tmpl.tfc_tpg_base_cit); + &tf->tf_tpg_base_cit); config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", - &tf->tf_cit_tmpl.tfc_tpg_lun_cit); + &tf->tf_tpg_lun_cit); config_group_init_type_name(&se_tpg->tpg_np_group, "np", - &tf->tf_cit_tmpl.tfc_tpg_np_cit); + &tf->tf_tpg_np_cit); config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", - &tf->tf_cit_tmpl.tfc_tpg_nacl_cit); + &tf->tf_tpg_nacl_cit); config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", - &tf->tf_cit_tmpl.tfc_tpg_attrib_cit); + &tf->tf_tpg_attrib_cit); config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", - &tf->tf_cit_tmpl.tfc_tpg_auth_cit); + &tf->tf_tpg_auth_cit); config_group_init_type_name(&se_tpg->tpg_param_group, "param", - &tf->tf_cit_tmpl.tfc_tpg_param_cit); + &tf->tf_tpg_param_cit); return &se_tpg->tpg_group; } @@ -1112,7 +980,7 @@ static void target_fabric_release_wwn(struct config_item *item) struct se_wwn, wwn_group); struct target_fabric_configfs *tf = wwn->wwn_tf; - tf->tf_ops.fabric_drop_wwn(wwn); + tf->tf_ops->fabric_drop_wwn(wwn); } static struct configfs_item_operations target_fabric_tpg_item_ops = { @@ -1148,12 +1016,12 @@ static struct config_group *target_fabric_make_wwn( struct target_fabric_configfs, tf_group); struct se_wwn *wwn; - if (!tf->tf_ops.fabric_make_wwn) { + if (!tf->tf_ops->fabric_make_wwn) { pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); return ERR_PTR(-ENOSYS); } - wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); + wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); if (!wwn || IS_ERR(wwn)) return ERR_PTR(-EINVAL); @@ -1165,10 +1033,9 @@ static struct config_group *target_fabric_make_wwn( wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; wwn->wwn_group.default_groups[1] = NULL; - config_group_init_type_name(&wwn->wwn_group, name, - &tf->tf_cit_tmpl.tfc_tpg_cit); + config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit); config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", - &tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit); + &tf->tf_wwn_fabric_stats_cit); return &wwn->wwn_group; } @@ -1196,33 +1063,9 @@ static struct configfs_group_operations target_fabric_wwn_group_ops = { .make_group = target_fabric_make_wwn, .drop_item = target_fabric_drop_wwn, }; -/* - * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() - */ -CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); - -static struct configfs_item_operations target_fabric_wwn_item_ops = { - .show_attribute = target_fabric_wwn_attr_show, - .store_attribute = target_fabric_wwn_attr_store, -}; - -TF_CIT_SETUP_DRV(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops); - -/* End of tfc_wwn_cit */ - -/* Start of tfc_discovery_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, - tf_disc_group); - -static struct configfs_item_operations target_fabric_discovery_item_ops = { - .show_attribute = target_fabric_discovery_attr_show, - .store_attribute = target_fabric_discovery_attr_store, -}; - -TF_CIT_SETUP_DRV(discovery, &target_fabric_discovery_item_ops, NULL); -/* End of tfc_discovery_cit */ +TF_CIT_SETUP_DRV(wwn, NULL, &target_fabric_wwn_group_ops); +TF_CIT_SETUP_DRV(discovery, NULL, NULL); int target_fabric_setup_cits(struct target_fabric_configfs *tf) { diff --git a/kernel/drivers/target/target_core_fabric_lib.c b/kernel/drivers/target/target_core_fabric_lib.c index 35bfe7716..cb6497ce4 100644 --- a/kernel/drivers/target/target_core_fabric_lib.c +++ b/kernel/drivers/target/target_core_fabric_lib.c @@ -24,134 +24,45 @@ * ******************************************************************************/ +/* + * See SPC4, section 7.5 "Protocol specific parameters" for details + * on the formats implemented in this file. + */ + #include <linux/kernel.h> #include <linux/string.h> #include <linux/ctype.h> #include <linux/spinlock.h> #include <linux/export.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> + +#include <scsi/scsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_pr.h" -/* - * Handlers for Serial Attached SCSI (SAS) - */ -u8 sas_get_fabric_proto_ident(struct se_portal_group *se_tpg) -{ - /* - * Return a SAS Serial SCSI Protocol identifier for loopback operations - * This is defined in section 7.5.1 Table 362 in spc4r17 - */ - return 0x6; -} -EXPORT_SYMBOL(sas_get_fabric_proto_ident); -u32 sas_get_pr_transport_id( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, +static int sas_get_pr_transport_id( + struct se_node_acl *nacl, int *format_code, unsigned char *buf) { - unsigned char *ptr; int ret; - /* - * Set PROTOCOL IDENTIFIER to 6h for SAS - */ - buf[0] = 0x06; - /* - * From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI - * over SAS Serial SCSI Protocol - */ - ptr = &se_nacl->initiatorname[4]; /* Skip over 'naa. prefix */ - - ret = hex2bin(&buf[4], ptr, 8); - if (ret < 0) - pr_debug("sas transport_id: invalid hex string\n"); + /* Skip over 'naa. prefix */ + ret = hex2bin(&buf[4], &nacl->initiatorname[4], 8); + if (ret) { + pr_debug("%s: invalid hex string\n", __func__); + return ret; + } - /* - * The SAS Transport ID is a hardcoded 24-byte length - */ return 24; } -EXPORT_SYMBOL(sas_get_pr_transport_id); -u32 sas_get_pr_transport_id_len( - struct se_portal_group *se_tpg, +static int fc_get_pr_transport_id( struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, - int *format_code) -{ - *format_code = 0; - /* - * From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI - * over SAS Serial SCSI Protocol - * - * The SAS Transport ID is a hardcoded 24-byte length - */ - return 24; -} -EXPORT_SYMBOL(sas_get_pr_transport_id_len); - -/* - * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above - * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations. - */ -char *sas_parse_pr_out_transport_id( - struct se_portal_group *se_tpg, - const char *buf, - u32 *out_tid_len, - char **port_nexus_ptr) -{ - /* - * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID - * for initiator ports using SCSI over SAS Serial SCSI Protocol - * - * The TransportID for a SAS Initiator Port is of fixed size of - * 24 bytes, and SAS does not contain a I_T nexus identifier, - * so we return the **port_nexus_ptr set to NULL. - */ - *port_nexus_ptr = NULL; - *out_tid_len = 24; - - return (char *)&buf[4]; -} -EXPORT_SYMBOL(sas_parse_pr_out_transport_id); - -/* - * Handlers for Fibre Channel Protocol (FCP) - */ -u8 fc_get_fabric_proto_ident(struct se_portal_group *se_tpg) -{ - return 0x0; /* 0 = fcp-2 per SPC4 section 7.5.1 */ -} -EXPORT_SYMBOL(fc_get_fabric_proto_ident); - -u32 fc_get_pr_transport_id_len( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, - int *format_code) -{ - *format_code = 0; - /* - * The FC Transport ID is a hardcoded 24-byte length - */ - return 24; -} -EXPORT_SYMBOL(fc_get_pr_transport_id_len); - -u32 fc_get_pr_transport_id( - struct se_portal_group *se_tpg, - struct se_node_acl *se_nacl, - struct t10_pr_registration *pr_reg, int *format_code, unsigned char *buf) { @@ -160,24 +71,20 @@ u32 fc_get_pr_transport_id( u32 off = 8; /* - * PROTOCOL IDENTIFIER is 0h for FCP-2 - * - * From spc4r17, 7.5.4.2 TransportID for initiator ports using - * SCSI over Fibre Channel - * * We convert the ASCII formatted N Port name into a binary * encoded TransportID. */ ptr = &se_nacl->initiatorname[0]; - for (i = 0; i < 24; ) { if (!strncmp(&ptr[i], ":", 1)) { i++; continue; } ret = hex2bin(&buf[off++], &ptr[i], 1); - if (ret < 0) - pr_debug("fc transport_id: invalid hex string\n"); + if (ret < 0) { + pr_debug("%s: invalid hex string\n", __func__); + return ret; + } i += 2; } /* @@ -185,42 +92,52 @@ u32 fc_get_pr_transport_id( */ return 24; } -EXPORT_SYMBOL(fc_get_pr_transport_id); -char *fc_parse_pr_out_transport_id( - struct se_portal_group *se_tpg, - const char *buf, - u32 *out_tid_len, - char **port_nexus_ptr) +static int sbp_get_pr_transport_id( + struct se_node_acl *nacl, + int *format_code, + unsigned char *buf) { - /* - * The TransportID for a FC N Port is of fixed size of - * 24 bytes, and FC does not contain a I_T nexus identifier, - * so we return the **port_nexus_ptr set to NULL. - */ - *port_nexus_ptr = NULL; - *out_tid_len = 24; + int ret; - return (char *)&buf[8]; -} -EXPORT_SYMBOL(fc_parse_pr_out_transport_id); + ret = hex2bin(&buf[8], nacl->initiatorname, 8); + if (ret) { + pr_debug("%s: invalid hex string\n", __func__); + return ret; + } -/* - * Handlers for Internet Small Computer Systems Interface (iSCSI) - */ + return 24; +} -u8 iscsi_get_fabric_proto_ident(struct se_portal_group *se_tpg) +static int srp_get_pr_transport_id( + struct se_node_acl *nacl, + int *format_code, + unsigned char *buf) { - /* - * This value is defined for "Internet SCSI (iSCSI)" - * in spc4r17 section 7.5.1 Table 362 - */ - return 0x5; + const char *p; + unsigned len, count, leading_zero_bytes; + int rc; + + p = nacl->initiatorname; + if (strncasecmp(p, "0x", 2) == 0) + p += 2; + len = strlen(p); + if (len % 2) + return -EINVAL; + + count = min(len / 2, 16U); + leading_zero_bytes = 16 - count; + memset(buf + 8, 0, leading_zero_bytes); + rc = hex2bin(buf + 8 + leading_zero_bytes, p, count); + if (rc < 0) { + pr_debug("hex2bin failed for %s: %d\n", __func__, rc); + return rc; + } + + return 24; } -EXPORT_SYMBOL(iscsi_get_fabric_proto_ident); -u32 iscsi_get_pr_transport_id( - struct se_portal_group *se_tpg, +static int iscsi_get_pr_transport_id( struct se_node_acl *se_nacl, struct t10_pr_registration *pr_reg, int *format_code, @@ -231,10 +148,6 @@ u32 iscsi_get_pr_transport_id( spin_lock_irq(&se_nacl->nacl_sess_lock); /* - * Set PROTOCOL IDENTIFIER to 5h for iSCSI - */ - buf[0] = 0x05; - /* * From spc4r17 Section 7.5.4.6: TransportID for initiator * ports using SCSI over iSCSI. * @@ -313,10 +226,8 @@ u32 iscsi_get_pr_transport_id( return len; } -EXPORT_SYMBOL(iscsi_get_pr_transport_id); -u32 iscsi_get_pr_transport_id_len( - struct se_portal_group *se_tpg, +static int iscsi_get_pr_transport_id_len( struct se_node_acl *se_nacl, struct t10_pr_registration *pr_reg, int *format_code) @@ -359,9 +270,8 @@ u32 iscsi_get_pr_transport_id_len( return len; } -EXPORT_SYMBOL(iscsi_get_pr_transport_id_len); -char *iscsi_parse_pr_out_transport_id( +static char *iscsi_parse_pr_out_transport_id( struct se_portal_group *se_tpg, const char *buf, u32 *out_tid_len, @@ -448,4 +358,79 @@ char *iscsi_parse_pr_out_transport_id( return (char *)&buf[4]; } -EXPORT_SYMBOL(iscsi_parse_pr_out_transport_id); + +int target_get_pr_transport_id_len(struct se_node_acl *nacl, + struct t10_pr_registration *pr_reg, int *format_code) +{ + switch (nacl->se_tpg->proto_id) { + case SCSI_PROTOCOL_FCP: + case SCSI_PROTOCOL_SBP: + case SCSI_PROTOCOL_SRP: + case SCSI_PROTOCOL_SAS: + break; + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_pr_transport_id_len(nacl, pr_reg, format_code); + default: + pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id); + return -EINVAL; + } + + /* + * Most transports use a fixed length 24 byte identifier. + */ + *format_code = 0; + return 24; +} + +int target_get_pr_transport_id(struct se_node_acl *nacl, + struct t10_pr_registration *pr_reg, int *format_code, + unsigned char *buf) +{ + switch (nacl->se_tpg->proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_pr_transport_id(nacl, format_code, buf); + case SCSI_PROTOCOL_SBP: + return sbp_get_pr_transport_id(nacl, format_code, buf); + case SCSI_PROTOCOL_SRP: + return srp_get_pr_transport_id(nacl, format_code, buf); + case SCSI_PROTOCOL_FCP: + return fc_get_pr_transport_id(nacl, format_code, buf); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_pr_transport_id(nacl, pr_reg, format_code, + buf); + default: + pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id); + return -EINVAL; + } +} + +const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg, + const char *buf, u32 *out_tid_len, char **port_nexus_ptr) +{ + u32 offset; + + switch (tpg->proto_id) { + case SCSI_PROTOCOL_SAS: + /* + * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID + * for initiator ports using SCSI over SAS Serial SCSI Protocol. + */ + offset = 4; + break; + case SCSI_PROTOCOL_SBP: + case SCSI_PROTOCOL_SRP: + case SCSI_PROTOCOL_FCP: + offset = 8; + break; + case SCSI_PROTOCOL_ISCSI: + return iscsi_parse_pr_out_transport_id(tpg, buf, out_tid_len, + port_nexus_ptr); + default: + pr_err("Unknown proto_id: 0x%02x\n", tpg->proto_id); + return NULL; + } + + *port_nexus_ptr = NULL; + *out_tid_len = 24; + return buf + offset; +} diff --git a/kernel/drivers/target/target_core_file.c b/kernel/drivers/target/target_core_file.c index 3f27bfd81..75f0f08b2 100644 --- a/kernel/drivers/target/target_core_file.c +++ b/kernel/drivers/target/target_core_file.c @@ -30,14 +30,13 @@ #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/module.h> +#include <linux/vmalloc.h> #include <linux/falloc.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> +#include <scsi/scsi_proto.h> #include <asm/unaligned.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> -#include <target/target_core_backend_configfs.h> #include "target_core_file.h" @@ -46,10 +45,6 @@ static inline struct fd_dev *FD_DEV(struct se_device *dev) return container_of(dev, struct fd_dev, dev); } -/* fd_attach_hba(): (Part of se_subsystem_api_t template) - * - * - */ static int fd_attach_hba(struct se_hba *hba, u32 host_id) { struct fd_host *fd_host; @@ -66,7 +61,7 @@ static int fd_attach_hba(struct se_hba *hba, u32 host_id) pr_debug("CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic" " Target Core Stack %s\n", hba->hba_id, FD_VERSION, - TARGET_CORE_MOD_VERSION); + TARGET_CORE_VERSION); pr_debug("CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic\n", hba->hba_id, fd_host->fd_host_id); @@ -165,25 +160,11 @@ static int fd_configure_device(struct se_device *dev) " block_device blocks: %llu logical_block_size: %d\n", dev_size, div_u64(dev_size, fd_dev->fd_block_size), fd_dev->fd_block_size); - /* - * Check if the underlying struct block_device request_queue supports - * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM - * in ATA and we need to set TPE=1 - */ - if (blk_queue_discard(q)) { - dev->dev_attrib.max_unmap_lba_count = - q->limits.max_discard_sectors; - /* - * Currently hardcoded to 1 in Linux/SCSI code.. - */ - dev->dev_attrib.max_unmap_block_desc_count = 1; - dev->dev_attrib.unmap_granularity = - q->limits.discard_granularity >> 9; - dev->dev_attrib.unmap_granularity_alignment = - q->limits.discard_alignment; + + if (target_configure_unmap_from_queue(&dev->dev_attrib, q, + fd_dev->fd_block_size)) pr_debug("IFILE: BLOCK Discard support available," - " disabled by default\n"); - } + " disabled by default\n"); /* * Enable write same emulation for IBLOCK and use 0xFFFF as * the smaller WRITE_SAME(10) only has a two-byte block count. @@ -246,87 +227,34 @@ fail: return ret; } -static void fd_free_device(struct se_device *dev) +static void fd_dev_call_rcu(struct rcu_head *p) { + struct se_device *dev = container_of(p, struct se_device, rcu_head); struct fd_dev *fd_dev = FD_DEV(dev); - if (fd_dev->fd_file) { - filp_close(fd_dev->fd_file, NULL); - fd_dev->fd_file = NULL; - } - kfree(fd_dev); } -static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot, - int is_write) +static void fd_free_device(struct se_device *dev) { - struct se_device *se_dev = cmd->se_dev; - struct fd_dev *dev = FD_DEV(se_dev); - struct file *prot_fd = dev->fd_prot_file; - loff_t pos = (cmd->t_task_lba * se_dev->prot_length); - unsigned char *buf; - u32 prot_size; - int rc, ret = 1; - - prot_size = (cmd->data_length / se_dev->dev_attrib.block_size) * - se_dev->prot_length; - - if (!is_write) { - fd_prot->prot_buf = kzalloc(prot_size, GFP_KERNEL); - if (!fd_prot->prot_buf) { - pr_err("Unable to allocate fd_prot->prot_buf\n"); - return -ENOMEM; - } - buf = fd_prot->prot_buf; - - fd_prot->prot_sg_nents = 1; - fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist), - GFP_KERNEL); - if (!fd_prot->prot_sg) { - pr_err("Unable to allocate fd_prot->prot_sg\n"); - kfree(fd_prot->prot_buf); - return -ENOMEM; - } - sg_init_table(fd_prot->prot_sg, fd_prot->prot_sg_nents); - sg_set_buf(fd_prot->prot_sg, buf, prot_size); - } - - if (is_write) { - rc = kernel_write(prot_fd, fd_prot->prot_buf, prot_size, pos); - if (rc < 0 || prot_size != rc) { - pr_err("kernel_write() for fd_do_prot_rw failed:" - " %d\n", rc); - ret = -EINVAL; - } - } else { - rc = kernel_read(prot_fd, pos, fd_prot->prot_buf, prot_size); - if (rc < 0) { - pr_err("kernel_read() for fd_do_prot_rw failed:" - " %d\n", rc); - ret = -EINVAL; - } - } + struct fd_dev *fd_dev = FD_DEV(dev); - if (is_write || ret < 0) { - kfree(fd_prot->prot_sg); - kfree(fd_prot->prot_buf); + if (fd_dev->fd_file) { + filp_close(fd_dev->fd_file, NULL); + fd_dev->fd_file = NULL; } - - return ret; + call_rcu(&dev->rcu_head, fd_dev_call_rcu); } -static int fd_do_rw(struct se_cmd *cmd, struct scatterlist *sgl, - u32 sgl_nents, int is_write) +static int fd_do_rw(struct se_cmd *cmd, struct file *fd, + u32 block_size, struct scatterlist *sgl, + u32 sgl_nents, u32 data_length, int is_write) { - struct se_device *se_dev = cmd->se_dev; - struct fd_dev *dev = FD_DEV(se_dev); - struct file *fd = dev->fd_file; struct scatterlist *sg; struct iov_iter iter; struct bio_vec *bvec; ssize_t len = 0; - loff_t pos = (cmd->t_task_lba * se_dev->dev_attrib.block_size); + loff_t pos = (cmd->t_task_lba * block_size); int ret = 0, i; bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL); @@ -352,7 +280,7 @@ static int fd_do_rw(struct se_cmd *cmd, struct scatterlist *sgl, kfree(bvec); if (is_write) { - if (ret < 0 || ret != cmd->data_length) { + if (ret < 0 || ret != data_length) { pr_err("%s() write returned %d\n", __func__, ret); return (ret < 0 ? ret : -EINVAL); } @@ -363,10 +291,10 @@ static int fd_do_rw(struct se_cmd *cmd, struct scatterlist *sgl, * block_device. */ if (S_ISBLK(file_inode(fd)->i_mode)) { - if (ret < 0 || ret != cmd->data_length) { + if (ret < 0 || ret != data_length) { pr_err("%s() returned %d, expecting %u for " "S_ISBLK\n", __func__, ret, - cmd->data_length); + data_length); return (ret < 0 ? ret : -EINVAL); } } else { @@ -533,9 +461,9 @@ fd_do_prot_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) } static sense_reason_t -fd_do_unmap(struct se_cmd *cmd, void *priv, sector_t lba, sector_t nolb) +fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) { - struct file *file = priv; + struct file *file = FD_DEV(cmd->se_dev)->fd_file; struct inode *inode = file->f_mapping->host; int ret; @@ -548,9 +476,12 @@ fd_do_unmap(struct se_cmd *cmd, void *priv, sector_t lba, sector_t nolb) if (S_ISBLK(inode->i_mode)) { /* The backend is block device, use discard */ struct block_device *bdev = inode->i_bdev; + struct se_device *dev = cmd->se_dev; - ret = blkdev_issue_discard(bdev, lba, - nolb, GFP_KERNEL, 0); + ret = blkdev_issue_discard(bdev, + target_to_linux_sector(dev, lba), + target_to_linux_sector(dev, nolb), + GFP_KERNEL, 0); if (ret < 0) { pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n", ret); @@ -577,42 +508,13 @@ fd_do_unmap(struct se_cmd *cmd, void *priv, sector_t lba, sector_t nolb) } static sense_reason_t -fd_execute_write_same_unmap(struct se_cmd *cmd) -{ - struct se_device *se_dev = cmd->se_dev; - struct fd_dev *fd_dev = FD_DEV(se_dev); - struct file *file = fd_dev->fd_file; - sector_t lba = cmd->t_task_lba; - sector_t nolb = sbc_get_write_same_sectors(cmd); - sense_reason_t ret; - - if (!nolb) { - target_complete_cmd(cmd, SAM_STAT_GOOD); - return 0; - } - - ret = fd_do_unmap(cmd, file, lba, nolb); - if (ret) - return ret; - - target_complete_cmd(cmd, GOOD); - return 0; -} - -static sense_reason_t -fd_execute_unmap(struct se_cmd *cmd) -{ - struct file *file = FD_DEV(cmd->se_dev)->fd_file; - - return sbc_execute_unmap(cmd, fd_do_unmap, file); -} - -static sense_reason_t fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, enum dma_data_direction data_direction) { struct se_device *dev = cmd->se_dev; - struct fd_prot fd_prot; + struct fd_dev *fd_dev = FD_DEV(dev); + struct file *file = fd_dev->fd_file; + struct file *pfile = fd_dev->fd_prot_file; sense_reason_t rc; int ret = 0; /* @@ -630,58 +532,45 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, * physical memory addresses to struct iovec virtual memory. */ if (data_direction == DMA_FROM_DEVICE) { - memset(&fd_prot, 0, sizeof(struct fd_prot)); - if (cmd->prot_type && dev->dev_attrib.pi_prot_type) { - ret = fd_do_prot_rw(cmd, &fd_prot, false); + ret = fd_do_rw(cmd, pfile, dev->prot_length, + cmd->t_prot_sg, cmd->t_prot_nents, + cmd->prot_length, 0); if (ret < 0) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } - ret = fd_do_rw(cmd, sgl, sgl_nents, 0); + ret = fd_do_rw(cmd, file, dev->dev_attrib.block_size, + sgl, sgl_nents, cmd->data_length, 0); if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) { - u32 sectors = cmd->data_length / dev->dev_attrib.block_size; + u32 sectors = cmd->data_length >> + ilog2(dev->dev_attrib.block_size); - rc = sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, - 0, fd_prot.prot_sg, 0); - if (rc) { - kfree(fd_prot.prot_sg); - kfree(fd_prot.prot_buf); + rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, + 0, cmd->t_prot_sg, 0); + if (rc) return rc; - } - kfree(fd_prot.prot_sg); - kfree(fd_prot.prot_buf); } } else { - memset(&fd_prot, 0, sizeof(struct fd_prot)); - if (cmd->prot_type && dev->dev_attrib.pi_prot_type) { - u32 sectors = cmd->data_length / dev->dev_attrib.block_size; + u32 sectors = cmd->data_length >> + ilog2(dev->dev_attrib.block_size); - ret = fd_do_prot_rw(cmd, &fd_prot, false); - if (ret < 0) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - - rc = sbc_dif_verify_write(cmd, cmd->t_task_lba, sectors, - 0, fd_prot.prot_sg, 0); - if (rc) { - kfree(fd_prot.prot_sg); - kfree(fd_prot.prot_buf); + rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, + 0, cmd->t_prot_sg, 0); + if (rc) return rc; - } } - ret = fd_do_rw(cmd, sgl, sgl_nents, 1); + ret = fd_do_rw(cmd, file, dev->dev_attrib.block_size, + sgl, sgl_nents, cmd->data_length, 1); /* * Perform implicit vfs_fsync_range() for fd_do_writev() ops * for SCSI WRITEs with Forced Unit Access (FUA) set. * Allow this to happen independent of WCE=0 setting. */ - if (ret > 0 && - dev->dev_attrib.emulate_fua_write > 0 && - (cmd->se_cmd_flags & SCF_FUA)) { - struct fd_dev *fd_dev = FD_DEV(dev); + if (ret > 0 && (cmd->se_cmd_flags & SCF_FUA)) { loff_t start = cmd->t_task_lba * dev->dev_attrib.block_size; loff_t end; @@ -695,17 +584,16 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, } if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) { - ret = fd_do_prot_rw(cmd, &fd_prot, true); + ret = fd_do_rw(cmd, pfile, dev->prot_length, + cmd->t_prot_sg, cmd->t_prot_nents, + cmd->prot_length, 1); if (ret < 0) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } } - if (ret < 0) { - kfree(fd_prot.prot_sg); - kfree(fd_prot.prot_buf); + if (ret < 0) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - } if (ret) target_complete_cmd(cmd, SAM_STAT_GOOD); @@ -908,7 +796,6 @@ static struct sbc_ops fd_sbc_ops = { .execute_rw = fd_execute_rw, .execute_sync_cache = fd_execute_sync_cache, .execute_write_same = fd_execute_write_same, - .execute_write_same_unmap = fd_execute_write_same_unmap, .execute_unmap = fd_execute_unmap, }; @@ -918,42 +805,7 @@ fd_parse_cdb(struct se_cmd *cmd) return sbc_parse_cdb(cmd, &fd_sbc_ops); } -DEF_TB_DEFAULT_ATTRIBS(fileio); - -static struct configfs_attribute *fileio_backend_dev_attrs[] = { - &fileio_dev_attrib_emulate_model_alias.attr, - &fileio_dev_attrib_emulate_dpo.attr, - &fileio_dev_attrib_emulate_fua_write.attr, - &fileio_dev_attrib_emulate_fua_read.attr, - &fileio_dev_attrib_emulate_write_cache.attr, - &fileio_dev_attrib_emulate_ua_intlck_ctrl.attr, - &fileio_dev_attrib_emulate_tas.attr, - &fileio_dev_attrib_emulate_tpu.attr, - &fileio_dev_attrib_emulate_tpws.attr, - &fileio_dev_attrib_emulate_caw.attr, - &fileio_dev_attrib_emulate_3pc.attr, - &fileio_dev_attrib_pi_prot_type.attr, - &fileio_dev_attrib_hw_pi_prot_type.attr, - &fileio_dev_attrib_pi_prot_format.attr, - &fileio_dev_attrib_enforce_pr_isids.attr, - &fileio_dev_attrib_is_nonrot.attr, - &fileio_dev_attrib_emulate_rest_reord.attr, - &fileio_dev_attrib_force_pr_aptpl.attr, - &fileio_dev_attrib_hw_block_size.attr, - &fileio_dev_attrib_block_size.attr, - &fileio_dev_attrib_hw_max_sectors.attr, - &fileio_dev_attrib_optimal_sectors.attr, - &fileio_dev_attrib_hw_queue_depth.attr, - &fileio_dev_attrib_queue_depth.attr, - &fileio_dev_attrib_max_unmap_lba_count.attr, - &fileio_dev_attrib_max_unmap_block_desc_count.attr, - &fileio_dev_attrib_unmap_granularity.attr, - &fileio_dev_attrib_unmap_granularity_alignment.attr, - &fileio_dev_attrib_max_write_same_len.attr, - NULL, -}; - -static struct se_subsystem_api fileio_template = { +static const struct target_backend_ops fileio_ops = { .name = "fileio", .inquiry_prod = "FILEIO", .inquiry_rev = FD_VERSION, @@ -971,21 +823,17 @@ static struct se_subsystem_api fileio_template = { .init_prot = fd_init_prot, .format_prot = fd_format_prot, .free_prot = fd_free_prot, + .tb_dev_attrib_attrs = sbc_attrib_attrs, }; static int __init fileio_module_init(void) { - struct target_backend_cits *tbc = &fileio_template.tb_cits; - - target_core_setup_sub_cits(&fileio_template); - tbc->tb_dev_attrib_cit.ct_attrs = fileio_backend_dev_attrs; - - return transport_subsystem_register(&fileio_template); + return transport_backend_register(&fileio_ops); } static void __exit fileio_module_exit(void) { - transport_subsystem_release(&fileio_template); + target_backend_unregister(&fileio_ops); } MODULE_DESCRIPTION("TCM FILEIO subsystem plugin"); diff --git a/kernel/drivers/target/target_core_file.h b/kernel/drivers/target/target_core_file.h index 182cbb295..068966fce 100644 --- a/kernel/drivers/target/target_core_file.h +++ b/kernel/drivers/target/target_core_file.h @@ -21,12 +21,6 @@ #define FDBD_HAS_BUFFERED_IO_WCE 0x04 #define FDBD_FORMAT_UNIT_SIZE 2048 -struct fd_prot { - unsigned char *prot_buf; - struct scatterlist *prot_sg; - u32 prot_sg_nents; -}; - struct fd_dev { struct se_device dev; diff --git a/kernel/drivers/target/target_core_hba.c b/kernel/drivers/target/target_core_hba.c index ff95f95dc..22390e0e0 100644 --- a/kernel/drivers/target/target_core_hba.c +++ b/kernel/drivers/target/target_core_hba.c @@ -36,67 +36,86 @@ #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" -static LIST_HEAD(subsystem_list); -static DEFINE_MUTEX(subsystem_mutex); +static LIST_HEAD(backend_list); +static DEFINE_MUTEX(backend_mutex); static u32 hba_id_counter; static DEFINE_SPINLOCK(hba_lock); static LIST_HEAD(hba_list); -int transport_subsystem_register(struct se_subsystem_api *sub_api) -{ - struct se_subsystem_api *s; - - INIT_LIST_HEAD(&sub_api->sub_api_list); - mutex_lock(&subsystem_mutex); - list_for_each_entry(s, &subsystem_list, sub_api_list) { - if (!strcmp(s->name, sub_api->name)) { - pr_err("%p is already registered with" - " duplicate name %s, unable to process" - " request\n", s, s->name); - mutex_unlock(&subsystem_mutex); +int transport_backend_register(const struct target_backend_ops *ops) +{ + struct target_backend *tb, *old; + + tb = kzalloc(sizeof(*tb), GFP_KERNEL); + if (!tb) + return -ENOMEM; + tb->ops = ops; + + mutex_lock(&backend_mutex); + list_for_each_entry(old, &backend_list, list) { + if (!strcmp(old->ops->name, ops->name)) { + pr_err("backend %s already registered.\n", ops->name); + mutex_unlock(&backend_mutex); + kfree(tb); return -EEXIST; } } - list_add_tail(&sub_api->sub_api_list, &subsystem_list); - mutex_unlock(&subsystem_mutex); + target_setup_backend_cits(tb); + list_add_tail(&tb->list, &backend_list); + mutex_unlock(&backend_mutex); - pr_debug("TCM: Registered subsystem plugin: %s struct module:" - " %p\n", sub_api->name, sub_api->owner); + pr_debug("TCM: Registered subsystem plugin: %s struct module: %p\n", + ops->name, ops->owner); return 0; } -EXPORT_SYMBOL(transport_subsystem_register); +EXPORT_SYMBOL(transport_backend_register); -void transport_subsystem_release(struct se_subsystem_api *sub_api) +void target_backend_unregister(const struct target_backend_ops *ops) { - mutex_lock(&subsystem_mutex); - list_del(&sub_api->sub_api_list); - mutex_unlock(&subsystem_mutex); + struct target_backend *tb; + + mutex_lock(&backend_mutex); + list_for_each_entry(tb, &backend_list, list) { + if (tb->ops == ops) { + list_del(&tb->list); + mutex_unlock(&backend_mutex); + /* + * Wait for any outstanding backend driver ->rcu_head + * callbacks to complete post TBO->free_device() -> + * call_rcu(), before allowing backend driver module + * unload of target_backend_ops->owner to proceed. + */ + rcu_barrier(); + kfree(tb); + return; + } + } + mutex_unlock(&backend_mutex); } -EXPORT_SYMBOL(transport_subsystem_release); +EXPORT_SYMBOL(target_backend_unregister); -static struct se_subsystem_api *core_get_backend(const char *sub_name) +static struct target_backend *core_get_backend(const char *name) { - struct se_subsystem_api *s; + struct target_backend *tb; - mutex_lock(&subsystem_mutex); - list_for_each_entry(s, &subsystem_list, sub_api_list) { - if (!strcmp(s->name, sub_name)) + mutex_lock(&backend_mutex); + list_for_each_entry(tb, &backend_list, list) { + if (!strcmp(tb->ops->name, name)) goto found; } - mutex_unlock(&subsystem_mutex); + mutex_unlock(&backend_mutex); return NULL; found: - if (s->owner && !try_module_get(s->owner)) - s = NULL; - mutex_unlock(&subsystem_mutex); - return s; + if (tb->ops->owner && !try_module_get(tb->ops->owner)) + tb = NULL; + mutex_unlock(&backend_mutex); + return tb; } struct se_hba * @@ -117,13 +136,13 @@ core_alloc_hba(const char *plugin_name, u32 plugin_dep_id, u32 hba_flags) hba->hba_index = scsi_get_new_index(SCSI_INST_INDEX); hba->hba_flags |= hba_flags; - hba->transport = core_get_backend(plugin_name); - if (!hba->transport) { + hba->backend = core_get_backend(plugin_name); + if (!hba->backend) { ret = -EINVAL; goto out_free_hba; } - ret = hba->transport->attach_hba(hba, plugin_dep_id); + ret = hba->backend->ops->attach_hba(hba, plugin_dep_id); if (ret < 0) goto out_module_put; @@ -138,8 +157,8 @@ core_alloc_hba(const char *plugin_name, u32 plugin_dep_id, u32 hba_flags) return hba; out_module_put: - module_put(hba->transport->owner); - hba->transport = NULL; + module_put(hba->backend->ops->owner); + hba->backend = NULL; out_free_hba: kfree(hba); return ERR_PTR(ret); @@ -150,7 +169,7 @@ core_delete_hba(struct se_hba *hba) { WARN_ON(hba->dev_count); - hba->transport->detach_hba(hba); + hba->backend->ops->detach_hba(hba); spin_lock(&hba_lock); list_del(&hba->hba_node); @@ -159,9 +178,14 @@ core_delete_hba(struct se_hba *hba) pr_debug("CORE_HBA[%d] - Detached HBA from Generic Target" " Core\n", hba->hba_id); - module_put(hba->transport->owner); + module_put(hba->backend->ops->owner); - hba->transport = NULL; + hba->backend = NULL; kfree(hba); return 0; } + +bool target_sense_desc_format(struct se_device *dev) +{ + return (dev) ? dev->transport->get_blocks(dev) > U32_MAX : false; +} diff --git a/kernel/drivers/target/target_core_iblock.c b/kernel/drivers/target/target_core_iblock.c index 8c9656837..2c53dceff 100644 --- a/kernel/drivers/target/target_core_iblock.c +++ b/kernel/drivers/target/target_core_iblock.c @@ -35,13 +35,11 @@ #include <linux/genhd.h> #include <linux/file.h> #include <linux/module.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> +#include <scsi/scsi_proto.h> #include <asm/unaligned.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> -#include <target/target_core_backend_configfs.h> #include "target_core_iblock.h" @@ -54,17 +52,11 @@ static inline struct iblock_dev *IBLOCK_DEV(struct se_device *dev) } -static struct se_subsystem_api iblock_template; - -/* iblock_attach_hba(): (Part of se_subsystem_api_t template) - * - * - */ static int iblock_attach_hba(struct se_hba *hba, u32 host_id) { pr_debug("CORE_HBA[%d] - TCM iBlock HBA Driver %s on" " Generic Target Core Stack %s\n", hba->hba_id, - IBLOCK_VERSION, TARGET_CORE_MOD_VERSION); + IBLOCK_VERSION, TARGET_CORE_VERSION); return 0; } @@ -113,6 +105,8 @@ static int iblock_configure_device(struct se_device *dev) mode = FMODE_READ|FMODE_EXCL; if (!ib_dev->ibd_readonly) mode |= FMODE_WRITE; + else + dev->dev_flags |= DF_READ_ONLY; bd = blkdev_get_by_path(ib_dev->ibd_udev_path, mode, ib_dev); if (IS_ERR(bd)) { @@ -127,27 +121,11 @@ static int iblock_configure_device(struct se_device *dev) dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q); dev->dev_attrib.hw_queue_depth = q->nr_requests; - /* - * Check if the underlying struct block_device request_queue supports - * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM - * in ATA and we need to set TPE=1 - */ - if (blk_queue_discard(q)) { - dev->dev_attrib.max_unmap_lba_count = - q->limits.max_discard_sectors; - - /* - * Currently hardcoded to 1 in Linux/SCSI code.. - */ - dev->dev_attrib.max_unmap_block_desc_count = 1; - dev->dev_attrib.unmap_granularity = - q->limits.discard_granularity >> 9; - dev->dev_attrib.unmap_granularity_alignment = - q->limits.discard_alignment; - + if (target_configure_unmap_from_queue(&dev->dev_attrib, q, + dev->dev_attrib.hw_block_size)) pr_debug("IBLOCK: BLOCK Discard support available," - " disabled by default\n"); - } + " disabled by default\n"); + /* * Enable write same emulation for IBLOCK and use 0xFFFF as * the smaller WRITE_SAME(10) only has a two-byte block count. @@ -161,17 +139,17 @@ static int iblock_configure_device(struct se_device *dev) if (bi) { struct bio_set *bs = ib_dev->ibd_bio_set; - if (!strcmp(bi->name, "T10-DIF-TYPE3-IP") || - !strcmp(bi->name, "T10-DIF-TYPE1-IP")) { + if (!strcmp(bi->profile->name, "T10-DIF-TYPE3-IP") || + !strcmp(bi->profile->name, "T10-DIF-TYPE1-IP")) { pr_err("IBLOCK export of blk_integrity: %s not" - " supported\n", bi->name); + " supported\n", bi->profile->name); ret = -ENOSYS; goto out_blkdev_put; } - if (!strcmp(bi->name, "T10-DIF-TYPE3-CRC")) { + if (!strcmp(bi->profile->name, "T10-DIF-TYPE3-CRC")) { dev->dev_attrib.pi_prot_type = TARGET_DIF_TYPE3_PROT; - } else if (!strcmp(bi->name, "T10-DIF-TYPE1-CRC")) { + } else if (!strcmp(bi->profile->name, "T10-DIF-TYPE1-CRC")) { dev->dev_attrib.pi_prot_type = TARGET_DIF_TYPE1_PROT; } @@ -198,6 +176,14 @@ out: return ret; } +static void iblock_dev_call_rcu(struct rcu_head *p) +{ + struct se_device *dev = container_of(p, struct se_device, rcu_head); + struct iblock_dev *ib_dev = IBLOCK_DEV(dev); + + kfree(ib_dev); +} + static void iblock_free_device(struct se_device *dev) { struct iblock_dev *ib_dev = IBLOCK_DEV(dev); @@ -207,7 +193,7 @@ static void iblock_free_device(struct se_device *dev) if (ib_dev->ibd_bio_set != NULL) bioset_free(ib_dev->ibd_bio_set); - kfree(ib_dev); + call_rcu(&dev->rcu_head, iblock_dev_call_rcu); } static unsigned long long iblock_emulate_read_cap_with_block_size( @@ -306,20 +292,13 @@ static void iblock_complete_cmd(struct se_cmd *cmd) kfree(ibr); } -static void iblock_bio_done(struct bio *bio, int err) +static void iblock_bio_done(struct bio *bio) { struct se_cmd *cmd = bio->bi_private; struct iblock_req *ibr = cmd->priv; - /* - * Set -EIO if !BIO_UPTODATE and the passed is still err=0 - */ - if (!test_bit(BIO_UPTODATE, &bio->bi_flags) && !err) - err = -EIO; - - if (err != 0) { - pr_err("test_bit(BIO_UPTODATE) failed for bio: %p," - " err: %d\n", bio, err); + if (bio->bi_error) { + pr_err("bio error: %p, err: %d\n", bio, bio->bi_error); /* * Bump the ib_bio_err_cnt and release bio. */ @@ -370,15 +349,15 @@ static void iblock_submit_bios(struct bio_list *list, int rw) blk_finish_plug(&plug); } -static void iblock_end_io_flush(struct bio *bio, int err) +static void iblock_end_io_flush(struct bio *bio) { struct se_cmd *cmd = bio->bi_private; - if (err) - pr_err("IBLOCK: cache flush failed: %d\n", err); + if (bio->bi_error) + pr_err("IBLOCK: cache flush failed: %d\n", bio->bi_error); if (cmd) { - if (err) + if (bio->bi_error) target_complete_cmd(cmd, SAM_STAT_CHECK_CONDITION); else target_complete_cmd(cmd, SAM_STAT_GOOD); @@ -415,13 +394,16 @@ iblock_execute_sync_cache(struct se_cmd *cmd) } static sense_reason_t -iblock_do_unmap(struct se_cmd *cmd, void *priv, - sector_t lba, sector_t nolb) +iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) { - struct block_device *bdev = priv; + struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd; + struct se_device *dev = cmd->se_dev; int ret; - ret = blkdev_issue_discard(bdev, lba, nolb, GFP_KERNEL, 0); + ret = blkdev_issue_discard(bdev, + target_to_linux_sector(dev, lba), + target_to_linux_sector(dev, nolb), + GFP_KERNEL, 0); if (ret < 0) { pr_err("blkdev_issue_discard() failed: %d\n", ret); return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; @@ -431,38 +413,16 @@ iblock_do_unmap(struct se_cmd *cmd, void *priv, } static sense_reason_t -iblock_execute_unmap(struct se_cmd *cmd) -{ - struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd; - - return sbc_execute_unmap(cmd, iblock_do_unmap, bdev); -} - -static sense_reason_t -iblock_execute_write_same_unmap(struct se_cmd *cmd) -{ - struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd; - sector_t lba = cmd->t_task_lba; - sector_t nolb = sbc_get_write_same_sectors(cmd); - sense_reason_t ret; - - ret = iblock_do_unmap(cmd, bdev, lba, nolb); - if (ret) - return ret; - - target_complete_cmd(cmd, GOOD); - return 0; -} - -static sense_reason_t iblock_execute_write_same(struct se_cmd *cmd) { struct iblock_req *ibr; struct scatterlist *sg; struct bio *bio; struct bio_list list; - sector_t block_lba = cmd->t_task_lba; - sector_t sectors = sbc_get_write_same_sectors(cmd); + struct se_device *dev = cmd->se_dev; + sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba); + sector_t sectors = target_to_linux_sector(dev, + sbc_get_write_same_sectors(cmd)); if (cmd->prot_op) { pr_err("WRITE_SAME: Protection information with IBLOCK" @@ -676,12 +636,12 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, enum dma_data_direction data_direction) { struct se_device *dev = cmd->se_dev; + sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba); struct iblock_req *ibr; struct bio *bio, *bio_start; struct bio_list list; struct scatterlist *sg; u32 sg_num = sgl_nents; - sector_t block_lba; unsigned bio_cnt; int rw = 0; int i; @@ -707,24 +667,6 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, rw = READ; } - /* - * Convert the blocksize advertised to the initiator to the 512 byte - * units unconditionally used by the Linux block layer. - */ - if (dev->dev_attrib.block_size == 4096) - block_lba = (cmd->t_task_lba << 3); - else if (dev->dev_attrib.block_size == 2048) - block_lba = (cmd->t_task_lba << 2); - else if (dev->dev_attrib.block_size == 1024) - block_lba = (cmd->t_task_lba << 1); - else if (dev->dev_attrib.block_size == 512) - block_lba = cmd->t_task_lba; - else { - pr_err("Unsupported SCSI -> BLOCK LBA conversion:" - " %u\n", dev->dev_attrib.block_size); - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - } - ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL); if (!ibr) goto fail; @@ -845,7 +787,6 @@ static struct sbc_ops iblock_sbc_ops = { .execute_rw = iblock_execute_rw, .execute_sync_cache = iblock_execute_sync_cache, .execute_write_same = iblock_execute_write_same, - .execute_write_same_unmap = iblock_execute_write_same_unmap, .execute_unmap = iblock_execute_unmap, }; @@ -864,42 +805,7 @@ static bool iblock_get_write_cache(struct se_device *dev) return q->flush_flags & REQ_FLUSH; } -DEF_TB_DEFAULT_ATTRIBS(iblock); - -static struct configfs_attribute *iblock_backend_dev_attrs[] = { - &iblock_dev_attrib_emulate_model_alias.attr, - &iblock_dev_attrib_emulate_dpo.attr, - &iblock_dev_attrib_emulate_fua_write.attr, - &iblock_dev_attrib_emulate_fua_read.attr, - &iblock_dev_attrib_emulate_write_cache.attr, - &iblock_dev_attrib_emulate_ua_intlck_ctrl.attr, - &iblock_dev_attrib_emulate_tas.attr, - &iblock_dev_attrib_emulate_tpu.attr, - &iblock_dev_attrib_emulate_tpws.attr, - &iblock_dev_attrib_emulate_caw.attr, - &iblock_dev_attrib_emulate_3pc.attr, - &iblock_dev_attrib_pi_prot_type.attr, - &iblock_dev_attrib_hw_pi_prot_type.attr, - &iblock_dev_attrib_pi_prot_format.attr, - &iblock_dev_attrib_enforce_pr_isids.attr, - &iblock_dev_attrib_is_nonrot.attr, - &iblock_dev_attrib_emulate_rest_reord.attr, - &iblock_dev_attrib_force_pr_aptpl.attr, - &iblock_dev_attrib_hw_block_size.attr, - &iblock_dev_attrib_block_size.attr, - &iblock_dev_attrib_hw_max_sectors.attr, - &iblock_dev_attrib_optimal_sectors.attr, - &iblock_dev_attrib_hw_queue_depth.attr, - &iblock_dev_attrib_queue_depth.attr, - &iblock_dev_attrib_max_unmap_lba_count.attr, - &iblock_dev_attrib_max_unmap_block_desc_count.attr, - &iblock_dev_attrib_unmap_granularity.attr, - &iblock_dev_attrib_unmap_granularity_alignment.attr, - &iblock_dev_attrib_max_write_same_len.attr, - NULL, -}; - -static struct se_subsystem_api iblock_template = { +static const struct target_backend_ops iblock_ops = { .name = "iblock", .inquiry_prod = "IBLOCK", .inquiry_rev = IBLOCK_VERSION, @@ -919,21 +825,17 @@ static struct se_subsystem_api iblock_template = { .get_io_min = iblock_get_io_min, .get_io_opt = iblock_get_io_opt, .get_write_cache = iblock_get_write_cache, + .tb_dev_attrib_attrs = sbc_attrib_attrs, }; static int __init iblock_module_init(void) { - struct target_backend_cits *tbc = &iblock_template.tb_cits; - - target_core_setup_sub_cits(&iblock_template); - tbc->tb_dev_attrib_cit.ct_attrs = iblock_backend_dev_attrs; - - return transport_subsystem_register(&iblock_template); + return transport_backend_register(&iblock_ops); } static void __exit iblock_module_exit(void) { - transport_subsystem_release(&iblock_template); + target_backend_unregister(&iblock_ops); } MODULE_DESCRIPTION("TCM IBLOCK subsystem plugin"); diff --git a/kernel/drivers/target/target_core_internal.h b/kernel/drivers/target/target_core_internal.h index 68bd7f5d9..dae0750c2 100644 --- a/kernel/drivers/target/target_core_internal.h +++ b/kernel/drivers/target/target_core_internal.h @@ -1,6 +1,53 @@ #ifndef TARGET_CORE_INTERNAL_H #define TARGET_CORE_INTERNAL_H +#define TARGET_CORE_NAME_MAX_LEN 64 +#define TARGET_FABRIC_NAME_SIZE 32 + +struct target_backend { + struct list_head list; + + const struct target_backend_ops *ops; + + struct config_item_type tb_dev_cit; + struct config_item_type tb_dev_attrib_cit; + struct config_item_type tb_dev_pr_cit; + struct config_item_type tb_dev_wwn_cit; + struct config_item_type tb_dev_alua_tg_pt_gps_cit; + struct config_item_type tb_dev_stat_cit; +}; + +struct target_fabric_configfs { + atomic_t tf_access_cnt; + struct list_head tf_list; + struct config_group tf_group; + struct config_group tf_disc_group; + struct config_group *tf_default_groups[2]; + const struct target_core_fabric_ops *tf_ops; + + struct config_item_type tf_discovery_cit; + struct config_item_type tf_wwn_cit; + struct config_item_type tf_wwn_fabric_stats_cit; + struct config_item_type tf_tpg_cit; + struct config_item_type tf_tpg_base_cit; + struct config_item_type tf_tpg_lun_cit; + struct config_item_type tf_tpg_port_cit; + struct config_item_type tf_tpg_port_stat_cit; + struct config_item_type tf_tpg_np_cit; + struct config_item_type tf_tpg_np_base_cit; + struct config_item_type tf_tpg_attrib_cit; + struct config_item_type tf_tpg_auth_cit; + struct config_item_type tf_tpg_param_cit; + struct config_item_type tf_tpg_nacl_cit; + struct config_item_type tf_tpg_nacl_base_cit; + struct config_item_type tf_tpg_nacl_attrib_cit; + struct config_item_type tf_tpg_nacl_auth_cit; + struct config_item_type tf_tpg_nacl_param_cit; + struct config_item_type tf_tpg_nacl_stat_cit; + struct config_item_type tf_tpg_mappedlun_cit; + struct config_item_type tf_tpg_mappedlun_stat_cit; +}; + /* target_core_alua.c */ extern struct t10_alua_lu_gp *default_lu_gp; @@ -8,28 +55,27 @@ extern struct t10_alua_lu_gp *default_lu_gp; extern struct mutex g_device_mutex; extern struct list_head g_device_list; +int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev); struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16); -int core_free_device_list_for_node(struct se_node_acl *, +void target_pr_kref_release(struct kref *); +void core_free_device_list_for_node(struct se_node_acl *, struct se_portal_group *); -void core_update_device_list_access(u32, u32, struct se_node_acl *); +void core_update_device_list_access(u64, u32, struct se_node_acl *); +struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64); int core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *, - u32, u32, struct se_node_acl *, struct se_portal_group *); -int core_disable_device_list_for_node(struct se_lun *, struct se_lun_acl *, - u32, u32, struct se_node_acl *, struct se_portal_group *); + u64, u32, struct se_node_acl *, struct se_portal_group *); +void core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *, + struct se_node_acl *, struct se_portal_group *); void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *); -int core_dev_export(struct se_device *, struct se_portal_group *, - struct se_lun *); -void core_dev_unexport(struct se_device *, struct se_portal_group *, - struct se_lun *); -struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_device *, u32); +int core_dev_add_lun(struct se_portal_group *, struct se_device *, + struct se_lun *lun); void core_dev_del_lun(struct se_portal_group *, struct se_lun *); -struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32); struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *, - struct se_node_acl *, u32, int *); + struct se_node_acl *, u64, int *); int core_dev_add_initiator_node_lun_acl(struct se_portal_group *, - struct se_lun_acl *, u32, u32); -int core_dev_del_initiator_node_lun_acl(struct se_portal_group *, - struct se_lun *, struct se_lun_acl *); + struct se_lun_acl *, struct se_lun *lun, u32); +int core_dev_del_initiator_node_lun_acl(struct se_lun *, + struct se_lun_acl *); void core_dev_free_initiator_node_lun_acl(struct se_portal_group *, struct se_lun_acl *lacl); int core_dev_setup_virtual_lun0(void); @@ -38,6 +84,21 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name); int target_configure_device(struct se_device *dev); void target_free_device(struct se_device *); +/* target_core_configfs.c */ +void target_setup_backend_cits(struct target_backend *); + +/* target_core_fabric_configfs.c */ +int target_fabric_setup_cits(struct target_fabric_configfs *); + +/* target_core_fabric_lib.c */ +int target_get_pr_transport_id_len(struct se_node_acl *nacl, + struct t10_pr_registration *pr_reg, int *format_code); +int target_get_pr_transport_id(struct se_node_acl *nacl, + struct t10_pr_registration *pr_reg, int *format_code, + unsigned char *buf); +const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg, + const char *buf, u32 *out_tid_len, char **port_nexus_ptr); + /* target_core_hba.c */ struct se_hba *core_alloc_hba(const char *, u32, u32); int core_delete_hba(struct se_hba *); @@ -53,12 +114,16 @@ extern struct se_device *g_lun0_dev; struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, const char *); -void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *); +void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *, + struct se_lun *); void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *); -struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u32); +struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64); int core_tpg_add_lun(struct se_portal_group *, struct se_lun *, u32, struct se_device *); void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *); +struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg, + const char *initiatorname); +void core_tpg_del_initiator_node_acl(struct se_node_acl *acl); /* target_core_transport.c */ extern struct kmem_cache *se_tmr_req_cache; @@ -77,14 +142,19 @@ int transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int); int transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int); int transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int); bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags); -int transport_clear_lun_ref(struct se_lun *); +void transport_clear_lun_ref(struct se_lun *); void transport_send_task_abort(struct se_cmd *); sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size); void target_qf_do_work(struct work_struct *work); +bool target_check_wce(struct se_device *dev); +bool target_check_fua(struct se_device *dev); /* target_core_stat.c */ void target_stat_setup_dev_default_groups(struct se_device *); void target_stat_setup_port_default_groups(struct se_lun *); void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *); +/* target_core_xcopy.c */ +extern struct se_portal_group xcopy_pt_tpg; + #endif /* TARGET_CORE_INTERNAL_H */ diff --git a/kernel/drivers/target/target_core_pr.c b/kernel/drivers/target/target_core_pr.c index a15411c79..e79331150 100644 --- a/kernel/drivers/target/target_core_pr.c +++ b/kernel/drivers/target/target_core_pr.c @@ -27,15 +27,14 @@ #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/list.h> +#include <linux/vmalloc.h> #include <linux/file.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_proto.h> #include <asm/unaligned.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_pr.h" @@ -45,7 +44,6 @@ * Used for Specify Initiator Ports Capable Bit (SPEC_I_PT) */ struct pr_transport_id_holder { - int dest_local_nexus; struct t10_pr_registration *dest_pr_reg; struct se_portal_group *dest_tpg; struct se_node_acl *dest_node_acl; @@ -231,9 +229,10 @@ target_scsi2_reservation_release(struct se_cmd *cmd) dev->dev_reservation_flags &= ~DRF_SPC2_RESERVATIONS_WITH_ISID; } tpg = sess->se_tpg; - pr_debug("SCSI-2 Released reservation for %s LUN: %u ->" - " MAPPED LUN: %u for %s\n", tpg->se_tpg_tfo->get_fabric_name(), - cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun, + pr_debug("SCSI-2 Released reservation for %s LUN: %llu ->" + " MAPPED LUN: %llu for %s\n", + tpg->se_tpg_tfo->get_fabric_name(), + cmd->se_lun->unpacked_lun, cmd->orig_fe_lun, sess->se_node_acl->initiatorname); out_unlock: @@ -277,12 +276,12 @@ target_scsi2_reservation_reserve(struct se_cmd *cmd) (dev->dev_reserved_node_acl != sess->se_node_acl)) { pr_err("SCSI-2 RESERVATION CONFLIFT for %s fabric\n", tpg->se_tpg_tfo->get_fabric_name()); - pr_err("Original reserver LUN: %u %s\n", + pr_err("Original reserver LUN: %llu %s\n", cmd->se_lun->unpacked_lun, dev->dev_reserved_node_acl->initiatorname); - pr_err("Current attempt - LUN: %u -> MAPPED LUN: %u" + pr_err("Current attempt - LUN: %llu -> MAPPED LUN: %llu" " from %s \n", cmd->se_lun->unpacked_lun, - cmd->se_deve->mapped_lun, + cmd->orig_fe_lun, sess->se_node_acl->initiatorname); ret = TCM_RESERVATION_CONFLICT; goto out_unlock; @@ -294,9 +293,9 @@ target_scsi2_reservation_reserve(struct se_cmd *cmd) dev->dev_res_bin_isid = sess->sess_bin_isid; dev->dev_reservation_flags |= DRF_SPC2_RESERVATIONS_WITH_ISID; } - pr_debug("SCSI-2 Reserved %s LUN: %u -> MAPPED LUN: %u" + pr_debug("SCSI-2 Reserved %s LUN: %llu -> MAPPED LUN: %llu" " for %s\n", tpg->se_tpg_tfo->get_fabric_name(), - cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun, + cmd->se_lun->unpacked_lun, cmd->orig_fe_lun, sess->se_node_acl->initiatorname); out_unlock: @@ -314,28 +313,31 @@ out: * This function is called by those initiator ports who are *NOT* * the active PR reservation holder when a reservation is present. */ -static int core_scsi3_pr_seq_non_holder( - struct se_cmd *cmd, - u32 pr_reg_type) +static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type, + bool isid_mismatch) { unsigned char *cdb = cmd->t_task_cdb; - struct se_dev_entry *se_deve; struct se_session *se_sess = cmd->se_sess; - int other_cdb = 0, ignore_reg; + struct se_node_acl *nacl = se_sess->se_node_acl; + int other_cdb = 0; int registered_nexus = 0, ret = 1; /* Conflict by default */ int all_reg = 0, reg_only = 0; /* ALL_REG, REG_ONLY */ int we = 0; /* Write Exclusive */ int legacy = 0; /* Act like a legacy device and return * RESERVATION CONFLICT on some CDBs */ - se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun]; - /* - * Determine if the registration should be ignored due to - * non-matching ISIDs in target_scsi3_pr_reservation_check(). - */ - ignore_reg = (pr_reg_type & 0x80000000); - if (ignore_reg) - pr_reg_type &= ~0x80000000; + if (isid_mismatch) { + registered_nexus = 0; + } else { + struct se_dev_entry *se_deve; + + rcu_read_lock(); + se_deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun); + if (se_deve) + registered_nexus = test_bit(DEF_PR_REG_ACTIVE, + &se_deve->deve_flags); + rcu_read_unlock(); + } switch (pr_reg_type) { case PR_TYPE_WRITE_EXCLUSIVE: @@ -345,8 +347,6 @@ static int core_scsi3_pr_seq_non_holder( * Some commands are only allowed for the persistent reservation * holder. */ - if ((se_deve->def_pr_registered) && !(ignore_reg)) - registered_nexus = 1; break; case PR_TYPE_WRITE_EXCLUSIVE_REGONLY: we = 1; @@ -355,8 +355,6 @@ static int core_scsi3_pr_seq_non_holder( * Some commands are only allowed for registered I_T Nexuses. */ reg_only = 1; - if ((se_deve->def_pr_registered) && !(ignore_reg)) - registered_nexus = 1; break; case PR_TYPE_WRITE_EXCLUSIVE_ALLREG: we = 1; @@ -365,8 +363,6 @@ static int core_scsi3_pr_seq_non_holder( * Each registered I_T Nexus is a reservation holder. */ all_reg = 1; - if ((se_deve->def_pr_registered) && !(ignore_reg)) - registered_nexus = 1; break; default: return -EINVAL; @@ -572,6 +568,7 @@ target_scsi3_pr_reservation_check(struct se_cmd *cmd) struct se_device *dev = cmd->se_dev; struct se_session *sess = cmd->se_sess; u32 pr_reg_type; + bool isid_mismatch = false; if (!dev->dev_pr_res_holder) return 0; @@ -584,7 +581,7 @@ target_scsi3_pr_reservation_check(struct se_cmd *cmd) if (dev->dev_pr_res_holder->isid_present_at_reg) { if (dev->dev_pr_res_holder->pr_reg_bin_isid != sess->sess_bin_isid) { - pr_reg_type |= 0x80000000; + isid_mismatch = true; goto check_nonholder; } } @@ -592,7 +589,7 @@ target_scsi3_pr_reservation_check(struct se_cmd *cmd) return 0; check_nonholder: - if (core_scsi3_pr_seq_non_holder(cmd, pr_reg_type)) + if (core_scsi3_pr_seq_non_holder(cmd, pr_reg_type, isid_mismatch)) return TCM_RESERVATION_CONFLICT; return 0; } @@ -620,7 +617,9 @@ static u32 core_scsi3_pr_generation(struct se_device *dev) static struct t10_pr_registration *__core_scsi3_do_alloc_registration( struct se_device *dev, struct se_node_acl *nacl, - struct se_dev_entry *deve, + struct se_lun *lun, + struct se_dev_entry *dest_deve, + u64 mapped_lun, unsigned char *isid, u64 sa_res_key, int all_tg_pt, @@ -641,13 +640,35 @@ static struct t10_pr_registration *__core_scsi3_do_alloc_registration( INIT_LIST_HEAD(&pr_reg->pr_reg_atp_mem_list); atomic_set(&pr_reg->pr_res_holders, 0); pr_reg->pr_reg_nacl = nacl; - pr_reg->pr_reg_deve = deve; - pr_reg->pr_res_mapped_lun = deve->mapped_lun; - pr_reg->pr_aptpl_target_lun = deve->se_lun->unpacked_lun; + /* + * For destination registrations for ALL_TG_PT=1 and SPEC_I_PT=1, + * the se_dev_entry->pr_ref will have been already obtained by + * core_get_se_deve_from_rtpi() or __core_scsi3_alloc_registration(). + * + * Otherwise, locate se_dev_entry now and obtain a reference until + * registration completes in __core_scsi3_add_registration(). + */ + if (dest_deve) { + pr_reg->pr_reg_deve = dest_deve; + } else { + rcu_read_lock(); + pr_reg->pr_reg_deve = target_nacl_find_deve(nacl, mapped_lun); + if (!pr_reg->pr_reg_deve) { + rcu_read_unlock(); + pr_err("Unable to locate PR deve %s mapped_lun: %llu\n", + nacl->initiatorname, mapped_lun); + kmem_cache_free(t10_pr_reg_cache, pr_reg); + return NULL; + } + kref_get(&pr_reg->pr_reg_deve->pr_kref); + rcu_read_unlock(); + } + pr_reg->pr_res_mapped_lun = mapped_lun; + pr_reg->pr_aptpl_target_lun = lun->unpacked_lun; + pr_reg->tg_pt_sep_rtpi = lun->lun_rtpi; pr_reg->pr_res_key = sa_res_key; pr_reg->pr_reg_all_tg_pt = all_tg_pt; pr_reg->pr_reg_aptpl = aptpl; - pr_reg->pr_reg_tg_pt_lun = deve->se_lun; /* * If an ISID value for this SCSI Initiator Port exists, * save it to the registration now. @@ -671,7 +692,9 @@ static void core_scsi3_lunacl_undepend_item(struct se_dev_entry *); static struct t10_pr_registration *__core_scsi3_alloc_registration( struct se_device *dev, struct se_node_acl *nacl, + struct se_lun *lun, struct se_dev_entry *deve, + u64 mapped_lun, unsigned char *isid, u64 sa_res_key, int all_tg_pt, @@ -679,7 +702,8 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( { struct se_dev_entry *deve_tmp; struct se_node_acl *nacl_tmp; - struct se_port *port, *port_tmp; + struct se_lun_acl *lacl_tmp; + struct se_lun *lun_tmp, *next, *dest_lun; const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo; struct t10_pr_registration *pr_reg, *pr_reg_atp, *pr_reg_tmp, *pr_reg_tmp_safe; int ret; @@ -687,8 +711,9 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( * Create a registration for the I_T Nexus upon which the * PROUT REGISTER was received. */ - pr_reg = __core_scsi3_do_alloc_registration(dev, nacl, deve, isid, - sa_res_key, all_tg_pt, aptpl); + pr_reg = __core_scsi3_do_alloc_registration(dev, nacl, lun, deve, mapped_lun, + isid, sa_res_key, all_tg_pt, + aptpl); if (!pr_reg) return NULL; /* @@ -701,13 +726,13 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( * for ALL_TG_PT=1 */ spin_lock(&dev->se_port_lock); - list_for_each_entry_safe(port, port_tmp, &dev->dev_sep_list, sep_list) { - atomic_inc_mb(&port->sep_tg_pt_ref_cnt); + list_for_each_entry_safe(lun_tmp, next, &dev->dev_sep_list, lun_dev_link) { + if (!percpu_ref_tryget_live(&lun_tmp->lun_ref)) + continue; spin_unlock(&dev->se_port_lock); - spin_lock_bh(&port->sep_alua_lock); - list_for_each_entry(deve_tmp, &port->sep_alua_list, - alua_port_list) { + spin_lock(&lun_tmp->lun_deve_lock); + list_for_each_entry(deve_tmp, &lun_tmp->lun_deve_list, lun_link) { /* * This pointer will be NULL for demo mode MappedLUNs * that have not been make explicit via a ConfigFS @@ -716,7 +741,9 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( if (!deve_tmp->se_lun_acl) continue; - nacl_tmp = deve_tmp->se_lun_acl->se_lun_nacl; + lacl_tmp = rcu_dereference_check(deve_tmp->se_lun_acl, + lockdep_is_held(&lun_tmp->lun_deve_lock)); + nacl_tmp = lacl_tmp->se_lun_nacl; /* * Skip the matching struct se_node_acl that is allocated * above.. @@ -736,8 +763,8 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( if (strcmp(nacl->initiatorname, nacl_tmp->initiatorname)) continue; - atomic_inc_mb(&deve_tmp->pr_ref_count); - spin_unlock_bh(&port->sep_alua_lock); + kref_get(&deve_tmp->pr_kref); + spin_unlock(&lun_tmp->lun_deve_lock); /* * Grab a configfs group dependency that is released * for the exception path at label out: below, or upon @@ -748,8 +775,8 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( if (ret < 0) { pr_err("core_scsi3_lunacl_depend" "_item() failed\n"); - atomic_dec_mb(&port->sep_tg_pt_ref_cnt); - atomic_dec_mb(&deve_tmp->pr_ref_count); + percpu_ref_put(&lun_tmp->lun_ref); + kref_put(&deve_tmp->pr_kref, target_pr_kref_release); goto out; } /* @@ -759,24 +786,27 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( * the original *pr_reg is processed in * __core_scsi3_add_registration() */ + dest_lun = rcu_dereference_check(deve_tmp->se_lun, + atomic_read(&deve_tmp->pr_kref.refcount) != 0); + pr_reg_atp = __core_scsi3_do_alloc_registration(dev, - nacl_tmp, deve_tmp, NULL, + nacl_tmp, dest_lun, deve_tmp, + deve_tmp->mapped_lun, NULL, sa_res_key, all_tg_pt, aptpl); if (!pr_reg_atp) { - atomic_dec_mb(&port->sep_tg_pt_ref_cnt); - atomic_dec_mb(&deve_tmp->pr_ref_count); + percpu_ref_put(&lun_tmp->lun_ref); core_scsi3_lunacl_undepend_item(deve_tmp); goto out; } list_add_tail(&pr_reg_atp->pr_reg_atp_mem_list, &pr_reg->pr_reg_atp_list); - spin_lock_bh(&port->sep_alua_lock); + spin_lock(&lun_tmp->lun_deve_lock); } - spin_unlock_bh(&port->sep_alua_lock); + spin_unlock(&lun_tmp->lun_deve_lock); spin_lock(&dev->se_port_lock); - atomic_dec_mb(&port->sep_tg_pt_ref_cnt); + percpu_ref_put(&lun_tmp->lun_ref); } spin_unlock(&dev->se_port_lock); @@ -797,10 +827,10 @@ int core_scsi3_alloc_aptpl_registration( u64 sa_res_key, unsigned char *i_port, unsigned char *isid, - u32 mapped_lun, + u64 mapped_lun, unsigned char *t_port, u16 tpgt, - u32 target_lun, + u64 target_lun, int res_holder, int all_tg_pt, u8 type) @@ -831,7 +861,6 @@ int core_scsi3_alloc_aptpl_registration( pr_reg->pr_res_key = sa_res_key; pr_reg->pr_reg_all_tg_pt = all_tg_pt; pr_reg->pr_reg_aptpl = 1; - pr_reg->pr_reg_tg_pt_lun = NULL; pr_reg->pr_res_scope = 0; /* Always LUN_SCOPE */ pr_reg->pr_res_type = type; /* @@ -895,9 +924,9 @@ static int __core_scsi3_check_aptpl_registration( struct se_device *dev, struct se_portal_group *tpg, struct se_lun *lun, - u32 target_lun, + u64 target_lun, struct se_node_acl *nacl, - struct se_dev_entry *deve) + u64 mapped_lun) { struct t10_pr_registration *pr_reg, *pr_reg_tmp; struct t10_reservation *pr_tmpl = &dev->t10_pr; @@ -925,22 +954,33 @@ static int __core_scsi3_check_aptpl_registration( pr_reg_aptpl_list) { if (!strcmp(pr_reg->pr_iport, i_port) && - (pr_reg->pr_res_mapped_lun == deve->mapped_lun) && + (pr_reg->pr_res_mapped_lun == mapped_lun) && !(strcmp(pr_reg->pr_tport, t_port)) && (pr_reg->pr_reg_tpgt == tpgt) && (pr_reg->pr_aptpl_target_lun == target_lun)) { + /* + * Obtain the ->pr_reg_deve pointer + reference, that + * is released by __core_scsi3_add_registration() below. + */ + rcu_read_lock(); + pr_reg->pr_reg_deve = target_nacl_find_deve(nacl, mapped_lun); + if (!pr_reg->pr_reg_deve) { + pr_err("Unable to locate PR APTPL %s mapped_lun:" + " %llu\n", nacl->initiatorname, mapped_lun); + rcu_read_unlock(); + continue; + } + kref_get(&pr_reg->pr_reg_deve->pr_kref); + rcu_read_unlock(); pr_reg->pr_reg_nacl = nacl; - pr_reg->pr_reg_deve = deve; - pr_reg->pr_reg_tg_pt_lun = lun; - + pr_reg->tg_pt_sep_rtpi = lun->lun_rtpi; list_del(&pr_reg->pr_reg_aptpl_list); spin_unlock(&pr_tmpl->aptpl_reg_lock); /* * At this point all of the pointers in *pr_reg will * be setup, so go ahead and add the registration. */ - __core_scsi3_add_registration(dev, nacl, pr_reg, 0, 0); /* * If this registration is the reservation holder, @@ -967,15 +1007,14 @@ int core_scsi3_check_aptpl_registration( struct se_portal_group *tpg, struct se_lun *lun, struct se_node_acl *nacl, - u32 mapped_lun) + u64 mapped_lun) { - struct se_dev_entry *deve = nacl->device_list[mapped_lun]; - if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) return 0; return __core_scsi3_check_aptpl_registration(dev, tpg, lun, - lun->unpacked_lun, nacl, deve); + lun->unpacked_lun, nacl, + mapped_lun); } static void __core_scsi3_dump_registration( @@ -1009,10 +1048,6 @@ static void __core_scsi3_dump_registration( pr_reg->pr_reg_aptpl); } -/* - * this function can be called with struct se_device->dev_reservation_lock - * when register_move = 1 - */ static void __core_scsi3_add_registration( struct se_device *dev, struct se_node_acl *nacl, @@ -1023,6 +1058,7 @@ static void __core_scsi3_add_registration( const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo; struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe; struct t10_reservation *pr_tmpl = &dev->t10_pr; + struct se_dev_entry *deve; /* * Increment PRgeneration counter for struct se_device upon a successful @@ -1039,7 +1075,6 @@ static void __core_scsi3_add_registration( spin_lock(&pr_tmpl->registration_lock); list_add_tail(&pr_reg->pr_reg_list, &pr_tmpl->registration_list); - pr_reg->pr_reg_deve->def_pr_registered = 1; __core_scsi3_dump_registration(tfo, dev, nacl, pr_reg, register_type); spin_unlock(&pr_tmpl->registration_lock); @@ -1047,13 +1082,15 @@ static void __core_scsi3_add_registration( * Skip extra processing for ALL_TG_PT=0 or REGISTER_AND_MOVE. */ if (!pr_reg->pr_reg_all_tg_pt || register_move) - return; + goto out; /* * Walk pr_reg->pr_reg_atp_list and add registrations for ALL_TG_PT=1 * allocated in __core_scsi3_alloc_registration() */ list_for_each_entry_safe(pr_reg_tmp, pr_reg_tmp_safe, &pr_reg->pr_reg_atp_list, pr_reg_atp_mem_list) { + struct se_node_acl *nacl_tmp = pr_reg_tmp->pr_reg_nacl; + list_del(&pr_reg_tmp->pr_reg_atp_mem_list); pr_reg_tmp->pr_res_generation = core_scsi3_pr_generation(dev); @@ -1061,24 +1098,43 @@ static void __core_scsi3_add_registration( spin_lock(&pr_tmpl->registration_lock); list_add_tail(&pr_reg_tmp->pr_reg_list, &pr_tmpl->registration_list); - pr_reg_tmp->pr_reg_deve->def_pr_registered = 1; - __core_scsi3_dump_registration(tfo, dev, - pr_reg_tmp->pr_reg_nacl, pr_reg_tmp, - register_type); + __core_scsi3_dump_registration(tfo, dev, nacl_tmp, pr_reg_tmp, + register_type); spin_unlock(&pr_tmpl->registration_lock); /* - * Drop configfs group dependency reference from - * __core_scsi3_alloc_registration() + * Drop configfs group dependency reference and deve->pr_kref + * obtained from __core_scsi3_alloc_registration() code. */ - core_scsi3_lunacl_undepend_item(pr_reg_tmp->pr_reg_deve); + rcu_read_lock(); + deve = pr_reg_tmp->pr_reg_deve; + if (deve) { + set_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags); + core_scsi3_lunacl_undepend_item(deve); + pr_reg_tmp->pr_reg_deve = NULL; + } + rcu_read_unlock(); + } +out: + /* + * Drop deve->pr_kref obtained in __core_scsi3_do_alloc_registration() + */ + rcu_read_lock(); + deve = pr_reg->pr_reg_deve; + if (deve) { + set_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags); + kref_put(&deve->pr_kref, target_pr_kref_release); + pr_reg->pr_reg_deve = NULL; } + rcu_read_unlock(); } static int core_scsi3_alloc_registration( struct se_device *dev, struct se_node_acl *nacl, + struct se_lun *lun, struct se_dev_entry *deve, + u64 mapped_lun, unsigned char *isid, u64 sa_res_key, int all_tg_pt, @@ -1088,8 +1144,9 @@ static int core_scsi3_alloc_registration( { struct t10_pr_registration *pr_reg; - pr_reg = __core_scsi3_alloc_registration(dev, nacl, deve, isid, - sa_res_key, all_tg_pt, aptpl); + pr_reg = __core_scsi3_alloc_registration(dev, nacl, lun, deve, mapped_lun, + isid, sa_res_key, all_tg_pt, + aptpl); if (!pr_reg) return -EPERM; @@ -1242,13 +1299,13 @@ static void __core_scsi3_free_registration( const struct target_core_fabric_ops *tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo; struct t10_reservation *pr_tmpl = &dev->t10_pr; + struct se_node_acl *nacl = pr_reg->pr_reg_nacl; + struct se_dev_entry *deve; char i_buf[PR_REG_ISID_ID_LEN]; memset(i_buf, 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); - pr_reg->pr_reg_deve->def_pr_registered = 0; - pr_reg->pr_reg_deve->pr_res_key = 0; if (!list_empty(&pr_reg->pr_reg_list)) list_del(&pr_reg->pr_reg_list); /* @@ -1257,6 +1314,8 @@ static void __core_scsi3_free_registration( */ if (dec_holders) core_scsi3_put_pr_reg(pr_reg); + + spin_unlock(&pr_tmpl->registration_lock); /* * Wait until all reference from any other I_T nexuses for this * *pr_reg have been released. Because list_del() is called above, @@ -1264,13 +1323,18 @@ static void __core_scsi3_free_registration( * count back to zero, and we release *pr_reg. */ while (atomic_read(&pr_reg->pr_res_holders) != 0) { - spin_unlock(&pr_tmpl->registration_lock); pr_debug("SPC-3 PR [%s] waiting for pr_res_holders\n", tfo->get_fabric_name()); cpu_relax(); - spin_lock(&pr_tmpl->registration_lock); } + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, pr_reg->pr_res_mapped_lun); + if (deve) + clear_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags); + rcu_read_unlock(); + + spin_lock(&pr_tmpl->registration_lock); pr_debug("SPC-3 PR [%s] Service Action: UNREGISTER Initiator" " Node: %s%s\n", tfo->get_fabric_name(), pr_reg->pr_reg_nacl->initiatorname, @@ -1392,12 +1456,14 @@ static void core_scsi3_nodeacl_undepend_item(struct se_node_acl *nacl) static int core_scsi3_lunacl_depend_item(struct se_dev_entry *se_deve) { - struct se_lun_acl *lun_acl = se_deve->se_lun_acl; + struct se_lun_acl *lun_acl; struct se_node_acl *nacl; struct se_portal_group *tpg; /* * For nacl->dynamic_node_acl=1 */ + lun_acl = rcu_dereference_check(se_deve->se_lun_acl, + atomic_read(&se_deve->pr_kref.refcount) != 0); if (!lun_acl) return 0; @@ -1409,21 +1475,23 @@ static int core_scsi3_lunacl_depend_item(struct se_dev_entry *se_deve) static void core_scsi3_lunacl_undepend_item(struct se_dev_entry *se_deve) { - struct se_lun_acl *lun_acl = se_deve->se_lun_acl; + struct se_lun_acl *lun_acl; struct se_node_acl *nacl; struct se_portal_group *tpg; /* * For nacl->dynamic_node_acl=1 */ + lun_acl = rcu_dereference_check(se_deve->se_lun_acl, + atomic_read(&se_deve->pr_kref.refcount) != 0); if (!lun_acl) { - atomic_dec_mb(&se_deve->pr_ref_count); + kref_put(&se_deve->pr_kref, target_pr_kref_release); return; } nacl = lun_acl->se_lun_nacl; tpg = nacl->se_tpg; target_undepend_item(&lun_acl->se_lun_group.cg_item); - atomic_dec_mb(&se_deve->pr_ref_count); + kref_put(&se_deve->pr_kref, target_pr_kref_release); } static sense_reason_t @@ -1436,30 +1504,25 @@ core_scsi3_decode_spec_i_port( int aptpl) { struct se_device *dev = cmd->se_dev; - struct se_port *tmp_port; struct se_portal_group *dest_tpg = NULL, *tmp_tpg; struct se_session *se_sess = cmd->se_sess; struct se_node_acl *dest_node_acl = NULL; - struct se_dev_entry *dest_se_deve = NULL, *local_se_deve; + struct se_dev_entry *dest_se_deve = NULL; struct t10_pr_registration *dest_pr_reg, *local_pr_reg, *pr_reg_e; struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe; LIST_HEAD(tid_dest_list); struct pr_transport_id_holder *tidh_new, *tidh, *tidh_tmp; - const struct target_core_fabric_ops *tmp_tf_ops; - unsigned char *buf; - unsigned char *ptr, *i_str = NULL, proto_ident, tmp_proto_ident; + unsigned char *buf, *ptr, proto_ident; + const unsigned char *i_str = NULL; char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN]; sense_reason_t ret; u32 tpdl, tid_len = 0; - int dest_local_nexus; u32 dest_rtpi = 0; - local_se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun]; /* * Allocate a struct pr_transport_id_holder and setup the - * local_node_acl and local_se_deve pointers and add to - * struct list_head tid_dest_list for add registration - * processing in the loop of tid_dest_list below. + * local_node_acl pointer and add to struct list_head tid_dest_list + * for add registration processing in the loop of tid_dest_list below. */ tidh_new = kzalloc(sizeof(struct pr_transport_id_holder), GFP_KERNEL); if (!tidh_new) { @@ -1469,10 +1532,10 @@ core_scsi3_decode_spec_i_port( INIT_LIST_HEAD(&tidh_new->dest_list); tidh_new->dest_tpg = tpg; tidh_new->dest_node_acl = se_sess->se_node_acl; - tidh_new->dest_se_deve = local_se_deve; local_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev, - se_sess->se_node_acl, local_se_deve, l_isid, + se_sess->se_node_acl, cmd->se_lun, + NULL, cmd->orig_fe_lun, l_isid, sa_res_key, all_tg_pt, aptpl); if (!local_pr_reg) { kfree(tidh_new); @@ -1481,10 +1544,10 @@ core_scsi3_decode_spec_i_port( tidh_new->dest_pr_reg = local_pr_reg; /* * The local I_T nexus does not hold any configfs dependances, - * so we set tid_h->dest_local_nexus=1 to prevent the + * so we set tidh_new->dest_se_deve to NULL to prevent the * configfs_undepend_item() calls in the tid_dest_list loops below. */ - tidh_new->dest_local_nexus = 1; + tidh_new->dest_se_deve = NULL; list_add_tail(&tidh_new->dest_list, &tid_dest_list); if (cmd->data_length < 28) { @@ -1525,32 +1588,25 @@ core_scsi3_decode_spec_i_port( ptr = &buf[28]; while (tpdl > 0) { + struct se_lun *dest_lun, *tmp_lun; + proto_ident = (ptr[0] & 0x0f); dest_tpg = NULL; spin_lock(&dev->se_port_lock); - list_for_each_entry(tmp_port, &dev->dev_sep_list, sep_list) { - tmp_tpg = tmp_port->sep_tpg; - if (!tmp_tpg) - continue; - tmp_tf_ops = tmp_tpg->se_tpg_tfo; - if (!tmp_tf_ops) - continue; - if (!tmp_tf_ops->get_fabric_proto_ident || - !tmp_tf_ops->tpg_parse_pr_out_transport_id) - continue; + list_for_each_entry(tmp_lun, &dev->dev_sep_list, lun_dev_link) { + tmp_tpg = tmp_lun->lun_tpg; + /* * Look for the matching proto_ident provided by * the received TransportID */ - tmp_proto_ident = tmp_tf_ops->get_fabric_proto_ident(tmp_tpg); - if (tmp_proto_ident != proto_ident) + if (tmp_tpg->proto_id != proto_ident) continue; - dest_rtpi = tmp_port->sep_rtpi; + dest_rtpi = tmp_lun->lun_rtpi; - i_str = tmp_tf_ops->tpg_parse_pr_out_transport_id( - tmp_tpg, (const char *)ptr, &tid_len, - &iport_ptr); + i_str = target_parse_pr_out_transport_id(tmp_tpg, + (const char *)ptr, &tid_len, &iport_ptr); if (!i_str) continue; @@ -1569,12 +1625,12 @@ core_scsi3_decode_spec_i_port( * from the decoded fabric module specific TransportID * at *i_str. */ - spin_lock_irq(&tmp_tpg->acl_node_lock); + mutex_lock(&tmp_tpg->acl_node_mutex); dest_node_acl = __core_tpg_get_initiator_node_acl( tmp_tpg, i_str); if (dest_node_acl) atomic_inc_mb(&dest_node_acl->acl_pr_ref_count); - spin_unlock_irq(&tmp_tpg->acl_node_lock); + mutex_unlock(&tmp_tpg->acl_node_mutex); if (!dest_node_acl) { core_scsi3_tpg_undepend_item(tmp_tpg); @@ -1644,7 +1700,7 @@ core_scsi3_decode_spec_i_port( if (core_scsi3_lunacl_depend_item(dest_se_deve)) { pr_err("core_scsi3_lunacl_depend_item()" " failed\n"); - atomic_dec_mb(&dest_se_deve->pr_ref_count); + kref_put(&dest_se_deve->pr_kref, target_pr_kref_release); core_scsi3_nodeacl_undepend_item(dest_node_acl); core_scsi3_tpg_undepend_item(dest_tpg); ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; @@ -1652,7 +1708,7 @@ core_scsi3_decode_spec_i_port( } pr_debug("SPC-3 PR SPEC_I_PT: Located %s Node: %s" - " dest_se_deve mapped_lun: %u\n", + " dest_se_deve mapped_lun: %llu\n", dest_tpg->se_tpg_tfo->get_fabric_name(), dest_node_acl->initiatorname, dest_se_deve->mapped_lun); @@ -1708,9 +1764,13 @@ core_scsi3_decode_spec_i_port( * and then call __core_scsi3_add_registration() in the * 2nd loop which will never fail. */ + dest_lun = rcu_dereference_check(dest_se_deve->se_lun, + atomic_read(&dest_se_deve->pr_kref.refcount) != 0); + dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev, - dest_node_acl, dest_se_deve, iport_ptr, - sa_res_key, all_tg_pt, aptpl); + dest_node_acl, dest_lun, dest_se_deve, + dest_se_deve->mapped_lun, iport_ptr, + sa_res_key, all_tg_pt, aptpl); if (!dest_pr_reg) { core_scsi3_lunacl_undepend_item(dest_se_deve); core_scsi3_nodeacl_undepend_item(dest_node_acl); @@ -1748,7 +1808,6 @@ core_scsi3_decode_spec_i_port( dest_node_acl = tidh->dest_node_acl; dest_se_deve = tidh->dest_se_deve; dest_pr_reg = tidh->dest_pr_reg; - dest_local_nexus = tidh->dest_local_nexus; list_del(&tidh->dest_list); kfree(tidh); @@ -1761,12 +1820,15 @@ core_scsi3_decode_spec_i_port( pr_debug("SPC-3 PR [%s] SPEC_I_PT: Successfully" " registered Transport ID for Node: %s%s Mapped LUN:" - " %u\n", dest_tpg->se_tpg_tfo->get_fabric_name(), - dest_node_acl->initiatorname, i_buf, dest_se_deve->mapped_lun); + " %llu\n", dest_tpg->se_tpg_tfo->get_fabric_name(), + dest_node_acl->initiatorname, i_buf, (dest_se_deve) ? + dest_se_deve->mapped_lun : 0); - if (dest_local_nexus) + if (!dest_se_deve) { + kref_put(&local_pr_reg->pr_reg_deve->pr_kref, + target_pr_kref_release); continue; - + } core_scsi3_lunacl_undepend_item(dest_se_deve); core_scsi3_nodeacl_undepend_item(dest_node_acl); core_scsi3_tpg_undepend_item(dest_tpg); @@ -1785,7 +1847,6 @@ out: dest_node_acl = tidh->dest_node_acl; dest_se_deve = tidh->dest_se_deve; dest_pr_reg = tidh->dest_pr_reg; - dest_local_nexus = tidh->dest_local_nexus; list_del(&tidh->dest_list); kfree(tidh); @@ -1803,9 +1864,11 @@ out: kmem_cache_free(t10_pr_reg_cache, dest_pr_reg); - if (dest_local_nexus) + if (!dest_se_deve) { + kref_put(&local_pr_reg->pr_reg_deve->pr_kref, + target_pr_kref_release); continue; - + } core_scsi3_lunacl_undepend_item(dest_se_deve); core_scsi3_nodeacl_undepend_item(dest_node_acl); core_scsi3_tpg_undepend_item(dest_tpg); @@ -1818,7 +1881,6 @@ static int core_scsi3_update_aptpl_buf( unsigned char *buf, u32 pr_aptpl_buf_len) { - struct se_lun *lun; struct se_portal_group *tpg; struct t10_pr_registration *pr_reg; unsigned char tmp[512], isid_buf[32]; @@ -1837,7 +1899,6 @@ static int core_scsi3_update_aptpl_buf( tmp[0] = '\0'; isid_buf[0] = '\0'; tpg = pr_reg->pr_reg_nacl->se_tpg; - lun = pr_reg->pr_reg_tg_pt_lun; /* * Write out any ISID value to APTPL metadata that was included * in the original registration. @@ -1856,7 +1917,7 @@ static int core_scsi3_update_aptpl_buf( "sa_res_key=%llu\n" "res_holder=1\nres_type=%02x\n" "res_scope=%02x\nres_all_tg_pt=%d\n" - "mapped_lun=%u\n", reg_count, + "mapped_lun=%llu\n", reg_count, tpg->se_tpg_tfo->get_fabric_name(), pr_reg->pr_reg_nacl->initiatorname, isid_buf, pr_reg->pr_res_key, pr_reg->pr_res_type, @@ -1866,7 +1927,7 @@ static int core_scsi3_update_aptpl_buf( snprintf(tmp, 512, "PR_REG_START: %d\n" "initiator_fabric=%s\ninitiator_node=%s\n%s" "sa_res_key=%llu\nres_holder=0\n" - "res_all_tg_pt=%d\nmapped_lun=%u\n", + "res_all_tg_pt=%d\nmapped_lun=%llu\n", reg_count, tpg->se_tpg_tfo->get_fabric_name(), pr_reg->pr_reg_nacl->initiatorname, isid_buf, pr_reg->pr_res_key, pr_reg->pr_reg_all_tg_pt, @@ -1885,11 +1946,12 @@ static int core_scsi3_update_aptpl_buf( * Include information about the associated SCSI target port. */ snprintf(tmp, 512, "target_fabric=%s\ntarget_node=%s\n" - "tpgt=%hu\nport_rtpi=%hu\ntarget_lun=%u\nPR_REG_END:" + "tpgt=%hu\nport_rtpi=%hu\ntarget_lun=%llu\nPR_REG_END:" " %d\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_wwn(tpg), tpg->se_tpg_tfo->tpg_get_tag(tpg), - lun->lun_sep->sep_rtpi, lun->unpacked_lun, reg_count); + pr_reg->tg_pt_sep_rtpi, pr_reg->pr_aptpl_target_lun, + reg_count); if ((len + strlen(tmp) >= pr_aptpl_buf_len)) { pr_err("Unable to update renaming APTPL metadata," @@ -2000,7 +2062,6 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, { struct se_session *se_sess = cmd->se_sess; struct se_device *dev = cmd->se_dev; - struct se_dev_entry *se_deve; struct se_lun *se_lun = cmd->se_lun; struct se_portal_group *se_tpg; struct t10_pr_registration *pr_reg, *pr_reg_p, *pr_reg_tmp; @@ -2014,7 +2075,6 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } se_tpg = se_sess->se_tpg; - se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun]; if (se_tpg->se_tpg_tfo->sess_get_initiator_sid) { memset(&isid_buf[0], 0, PR_REG_ISID_LEN); @@ -2045,7 +2105,8 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, * Logical Unit of the SCSI device server. */ if (core_scsi3_alloc_registration(cmd->se_dev, - se_sess->se_node_acl, se_deve, isid_ptr, + se_sess->se_node_acl, cmd->se_lun, + NULL, cmd->orig_fe_lun, isid_ptr, sa_res_key, all_tg_pt, aptpl, register_type, 0)) { pr_err("Unable to allocate" @@ -2066,7 +2127,6 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, if (ret != 0) return ret; } - return core_scsi3_update_and_write_aptpl(dev, aptpl); } @@ -2180,7 +2240,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, &pr_tmpl->registration_list, pr_reg_list) { - core_scsi3_ua_allocate( + target_ua_allocate_lun( pr_reg_p->pr_reg_nacl, pr_reg_p->pr_res_mapped_lun, 0x2A, @@ -2607,7 +2667,7 @@ core_scsi3_emulate_pro_release(struct se_cmd *cmd, int type, int scope, if (pr_reg_p == pr_reg) continue; - core_scsi3_ua_allocate(pr_reg_p->pr_reg_nacl, + target_ua_allocate_lun(pr_reg_p->pr_reg_nacl, pr_reg_p->pr_res_mapped_lun, 0x2A, ASCQ_2AH_RESERVATIONS_RELEASED); } @@ -2630,7 +2690,7 @@ core_scsi3_emulate_pro_clear(struct se_cmd *cmd, u64 res_key) struct se_session *se_sess = cmd->se_sess; struct t10_reservation *pr_tmpl = &dev->t10_pr; struct t10_pr_registration *pr_reg, *pr_reg_tmp, *pr_reg_n, *pr_res_holder; - u32 pr_res_mapped_lun = 0; + u64 pr_res_mapped_lun = 0; int calling_it_nexus = 0; /* * Locate the existing *pr_reg via struct se_node_acl pointers @@ -2692,7 +2752,7 @@ core_scsi3_emulate_pro_clear(struct se_cmd *cmd, u64 res_key) * additional sense code set to RESERVATIONS PREEMPTED. */ if (!calling_it_nexus) - core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun, + target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun, 0x2A, ASCQ_2AH_RESERVATIONS_PREEMPTED); } spin_unlock(&pr_tmpl->registration_lock); @@ -2786,7 +2846,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, LIST_HEAD(preempt_and_abort_list); struct t10_pr_registration *pr_reg, *pr_reg_tmp, *pr_reg_n, *pr_res_holder; struct t10_reservation *pr_tmpl = &dev->t10_pr; - u32 pr_res_mapped_lun = 0; + u64 pr_res_mapped_lun = 0; int all_reg = 0, calling_it_nexus = 0; bool sa_res_key_unmatched = sa_res_key != 0; int prh_type = 0, prh_scope = 0; @@ -2901,7 +2961,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, NULL, 0); } if (!calling_it_nexus) - core_scsi3_ua_allocate(pr_reg_nacl, + target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun, 0x2A, ASCQ_2AH_REGISTRATIONS_PREEMPTED); } @@ -3007,7 +3067,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, * persistent reservation and/or registration, with the * additional sense code set to REGISTRATIONS PREEMPTED; */ - core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun, 0x2A, + target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun, 0x2A, ASCQ_2AH_REGISTRATIONS_PREEMPTED); } spin_unlock(&pr_tmpl->registration_lock); @@ -3040,7 +3100,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, if (calling_it_nexus) continue; - core_scsi3_ua_allocate(pr_reg->pr_reg_nacl, + target_ua_allocate_lun(pr_reg->pr_reg_nacl, pr_reg->pr_res_mapped_lun, 0x2A, ASCQ_2AH_RESERVATIONS_RELEASED); } @@ -3099,15 +3159,14 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, struct se_session *se_sess = cmd->se_sess; struct se_device *dev = cmd->se_dev; struct se_dev_entry *dest_se_deve = NULL; - struct se_lun *se_lun = cmd->se_lun; + struct se_lun *se_lun = cmd->se_lun, *tmp_lun; struct se_node_acl *pr_res_nacl, *pr_reg_nacl, *dest_node_acl = NULL; - struct se_port *se_port; struct se_portal_group *se_tpg, *dest_se_tpg = NULL; const struct target_core_fabric_ops *dest_tf_ops = NULL, *tf_ops; struct t10_pr_registration *pr_reg, *pr_res_holder, *dest_pr_reg; struct t10_reservation *pr_tmpl = &dev->t10_pr; unsigned char *buf; - unsigned char *initiator_str; + const unsigned char *initiator_str; char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN]; u32 tid_len, tmp_tid_len; int new_reg = 0, type, scope, matching_iname; @@ -3186,12 +3245,10 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, } spin_lock(&dev->se_port_lock); - list_for_each_entry(se_port, &dev->dev_sep_list, sep_list) { - if (se_port->sep_rtpi != rtpi) - continue; - dest_se_tpg = se_port->sep_tpg; - if (!dest_se_tpg) + list_for_each_entry(tmp_lun, &dev->dev_sep_list, lun_dev_link) { + if (tmp_lun->lun_rtpi != rtpi) continue; + dest_se_tpg = tmp_lun->lun_tpg; dest_tf_ops = dest_se_tpg->se_tpg_tfo; if (!dest_tf_ops) continue; @@ -3230,23 +3287,16 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, pr_debug("SPC-3 PR REGISTER_AND_MOVE: Extracted Protocol Identifier:" " 0x%02x\n", proto_ident); - if (proto_ident != dest_tf_ops->get_fabric_proto_ident(dest_se_tpg)) { + if (proto_ident != dest_se_tpg->proto_id) { pr_err("SPC-3 PR REGISTER_AND_MOVE: Received" " proto_ident: 0x%02x does not match ident: 0x%02x" " from fabric: %s\n", proto_ident, - dest_tf_ops->get_fabric_proto_ident(dest_se_tpg), + dest_se_tpg->proto_id, dest_tf_ops->get_fabric_name()); ret = TCM_INVALID_PARAMETER_LIST; goto out; } - if (dest_tf_ops->tpg_parse_pr_out_transport_id == NULL) { - pr_err("SPC-3 PR REGISTER_AND_MOVE: Fabric does not" - " containg a valid tpg_parse_pr_out_transport_id" - " function pointer\n"); - ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - goto out; - } - initiator_str = dest_tf_ops->tpg_parse_pr_out_transport_id(dest_se_tpg, + initiator_str = target_parse_pr_out_transport_id(dest_se_tpg, (const char *)&buf[24], &tmp_tid_len, &iport_ptr); if (!initiator_str) { pr_err("SPC-3 PR REGISTER_AND_MOVE: Unable to locate" @@ -3295,12 +3345,12 @@ after_iport_check: /* * Locate the destination struct se_node_acl from the received Transport ID */ - spin_lock_irq(&dest_se_tpg->acl_node_lock); + mutex_lock(&dest_se_tpg->acl_node_mutex); dest_node_acl = __core_tpg_get_initiator_node_acl(dest_se_tpg, initiator_str); if (dest_node_acl) atomic_inc_mb(&dest_node_acl->acl_pr_ref_count); - spin_unlock_irq(&dest_se_tpg->acl_node_lock); + mutex_unlock(&dest_se_tpg->acl_node_mutex); if (!dest_node_acl) { pr_err("Unable to locate %s dest_node_acl for" @@ -3337,14 +3387,14 @@ after_iport_check: if (core_scsi3_lunacl_depend_item(dest_se_deve)) { pr_err("core_scsi3_lunacl_depend_item() failed\n"); - atomic_dec_mb(&dest_se_deve->pr_ref_count); + kref_put(&dest_se_deve->pr_kref, target_pr_kref_release); dest_se_deve = NULL; ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; goto out; } pr_debug("SPC-3 PR REGISTER_AND_MOVE: Located %s node %s LUN" - " ACL for dest_se_deve->mapped_lun: %u\n", + " ACL for dest_se_deve->mapped_lun: %llu\n", dest_tf_ops->get_fabric_name(), dest_node_acl->initiatorname, dest_se_deve->mapped_lun); @@ -3421,13 +3471,17 @@ after_iport_check: dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl, iport_ptr); if (!dest_pr_reg) { - if (core_scsi3_alloc_registration(cmd->se_dev, - dest_node_acl, dest_se_deve, iport_ptr, - sa_res_key, 0, aptpl, 2, 1)) { - spin_unlock(&dev->dev_reservation_lock); + struct se_lun *dest_lun = rcu_dereference_check(dest_se_deve->se_lun, + atomic_read(&dest_se_deve->pr_kref.refcount) != 0); + + spin_unlock(&dev->dev_reservation_lock); + if (core_scsi3_alloc_registration(cmd->se_dev, dest_node_acl, + dest_lun, dest_se_deve, dest_se_deve->mapped_lun, + iport_ptr, sa_res_key, 0, aptpl, 2, 1)) { ret = TCM_INVALID_PARAMETER_LIST; goto out; } + spin_lock(&dev->dev_reservation_lock); dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl, iport_ptr); new_reg = 1; @@ -3883,9 +3937,10 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd) struct t10_pr_registration *pr_reg, *pr_reg_tmp; struct t10_reservation *pr_tmpl = &dev->t10_pr; unsigned char *buf; - u32 add_desc_len = 0, add_len = 0, desc_len, exp_desc_len; + u32 add_desc_len = 0, add_len = 0; u32 off = 8; /* off into first Full Status descriptor */ int format_code = 0, pr_res_type = 0, pr_res_scope = 0; + int exp_desc_len, desc_len; bool all_reg = false; if (cmd->data_length < 8) { @@ -3930,10 +3985,10 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd) * Determine expected length of $FABRIC_MOD specific * TransportID full status descriptor.. */ - exp_desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id_len( - se_tpg, se_nacl, pr_reg, &format_code); - - if ((exp_desc_len + add_len) > cmd->data_length) { + exp_desc_len = target_get_pr_transport_id_len(se_nacl, pr_reg, + &format_code); + if (exp_desc_len < 0 || + exp_desc_len + add_len > cmd->data_length) { pr_warn("SPC-3 PRIN READ_FULL_STATUS ran" " out of buffer: %d\n", cmd->data_length); spin_lock(&pr_tmpl->registration_lock); @@ -3990,21 +4045,26 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd) * IDENTIFIER field are not defined by this standard. */ if (!pr_reg->pr_reg_all_tg_pt) { - struct se_port *port = pr_reg->pr_reg_tg_pt_lun->lun_sep; + u16 sep_rtpi = pr_reg->tg_pt_sep_rtpi; - buf[off++] = ((port->sep_rtpi >> 8) & 0xff); - buf[off++] = (port->sep_rtpi & 0xff); + buf[off++] = ((sep_rtpi >> 8) & 0xff); + buf[off++] = (sep_rtpi & 0xff); } else off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */ + buf[off+4] = se_tpg->proto_id; + /* - * Now, have the $FABRIC_MOD fill in the protocol identifier + * Now, have the $FABRIC_MOD fill in the transport ID. */ - desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id(se_tpg, - se_nacl, pr_reg, &format_code, &buf[off+4]); + desc_len = target_get_pr_transport_id(se_nacl, pr_reg, + &format_code, &buf[off+4]); spin_lock(&pr_tmpl->registration_lock); atomic_dec_mb(&pr_reg->pr_res_holders); + + if (desc_len < 0) + break; /* * Set the ADDITIONAL DESCRIPTOR LENGTH */ diff --git a/kernel/drivers/target/target_core_pr.h b/kernel/drivers/target/target_core_pr.h index 749fd7bb7..e3d26e912 100644 --- a/kernel/drivers/target/target_core_pr.h +++ b/kernel/drivers/target/target_core_pr.h @@ -56,11 +56,11 @@ extern sense_reason_t target_scsi2_reservation_release(struct se_cmd *); extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *); extern int core_scsi3_alloc_aptpl_registration( struct t10_reservation *, u64, - unsigned char *, unsigned char *, u32, - unsigned char *, u16, u32, int, int, u8); + unsigned char *, unsigned char *, u64, + unsigned char *, u16, u64, int, int, u8); extern int core_scsi3_check_aptpl_registration(struct se_device *, struct se_portal_group *, struct se_lun *, - struct se_node_acl *, u32); + struct se_node_acl *, u64); extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *, struct se_node_acl *); extern void core_scsi3_free_all_registrations(struct se_device *); diff --git a/kernel/drivers/target/target_core_pscsi.c b/kernel/drivers/target/target_core_pscsi.c index ecc5eaef1..de18790eb 100644 --- a/kernel/drivers/target/target_core_pscsi.c +++ b/kernel/drivers/target/target_core_pscsi.c @@ -36,17 +36,15 @@ #include <linux/module.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> #include <scsi/scsi_device.h> -#include <scsi/scsi_cmnd.h> #include <scsi/scsi_host.h> #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> -#include <target/target_core_backend_configfs.h> #include "target_core_alua.h" +#include "target_core_internal.h" #include "target_core_pscsi.h" #define ISPRINT(a) ((a >= ' ') && (a <= '~')) @@ -56,8 +54,6 @@ static inline struct pscsi_dev_virt *PSCSI_DEV(struct se_device *dev) return container_of(dev, struct pscsi_dev_virt, dev); } -static struct se_subsystem_api pscsi_template; - static sense_reason_t pscsi_execute_cmd(struct se_cmd *cmd); static void pscsi_req_done(struct request *, int); @@ -82,7 +78,7 @@ static int pscsi_attach_hba(struct se_hba *hba, u32 host_id) pr_debug("CORE_HBA[%d] - TCM SCSI HBA Driver %s on" " Generic Target Core Stack %s\n", hba->hba_id, - PSCSI_VERSION, TARGET_CORE_MOD_VERSION); + PSCSI_VERSION, TARGET_CORE_VERSION); pr_debug("CORE_HBA[%d] - Attached SCSI HBA to Generic\n", hba->hba_id); @@ -581,6 +577,14 @@ static int pscsi_configure_device(struct se_device *dev) return -ENODEV; } +static void pscsi_dev_call_rcu(struct rcu_head *p) +{ + struct se_device *dev = container_of(p, struct se_device, rcu_head); + struct pscsi_dev_virt *pdv = PSCSI_DEV(dev); + + kfree(pdv); +} + static void pscsi_free_device(struct se_device *dev) { struct pscsi_dev_virt *pdv = PSCSI_DEV(dev); @@ -612,8 +616,7 @@ static void pscsi_free_device(struct se_device *dev) pdv->pdv_sd = NULL; } - - kfree(pdv); + call_rcu(&dev->rcu_head, pscsi_dev_call_rcu); } static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg, @@ -637,12 +640,14 @@ static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg, * Hack to make sure that Write-Protect modepage is set if R/O mode is * forced. */ - if (!cmd->se_deve || !cmd->data_length) + if (!cmd->data_length) goto after_mode_sense; if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) && (status_byte(result) << 1) == SAM_STAT_GOOD) { - if (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) { + bool read_only = target_lun_is_rdonly(cmd); + + if (read_only) { unsigned char *buf; buf = transport_kmap_data_sg(cmd); @@ -847,7 +852,7 @@ static ssize_t pscsi_show_configfs_dev_params(struct se_device *dev, char *b) return bl; } -static void pscsi_bi_endio(struct bio *bio, int error) +static void pscsi_bi_endio(struct bio *bio) { bio_put(bio); } @@ -968,7 +973,7 @@ fail: while (*hbio) { bio = *hbio; *hbio = (*hbio)->bi_next; - bio_endio(bio, 0); /* XXX: should be error */ + bio_endio(bio); } return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } @@ -1056,7 +1061,7 @@ fail_free_bio: while (hbio) { struct bio *bio = hbio; hbio = hbio->bi_next; - bio_endio(bio, 0); /* XXX: should be error */ + bio_endio(bio); } ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; fail: @@ -1118,27 +1123,7 @@ static void pscsi_req_done(struct request *req, int uptodate) kfree(pt); } -DEF_TB_DEV_ATTRIB_RO(pscsi, hw_pi_prot_type); -TB_DEV_ATTR_RO(pscsi, hw_pi_prot_type); - -DEF_TB_DEV_ATTRIB_RO(pscsi, hw_block_size); -TB_DEV_ATTR_RO(pscsi, hw_block_size); - -DEF_TB_DEV_ATTRIB_RO(pscsi, hw_max_sectors); -TB_DEV_ATTR_RO(pscsi, hw_max_sectors); - -DEF_TB_DEV_ATTRIB_RO(pscsi, hw_queue_depth); -TB_DEV_ATTR_RO(pscsi, hw_queue_depth); - -static struct configfs_attribute *pscsi_backend_dev_attrs[] = { - &pscsi_dev_attrib_hw_pi_prot_type.attr, - &pscsi_dev_attrib_hw_block_size.attr, - &pscsi_dev_attrib_hw_max_sectors.attr, - &pscsi_dev_attrib_hw_queue_depth.attr, - NULL, -}; - -static struct se_subsystem_api pscsi_template = { +static const struct target_backend_ops pscsi_ops = { .name = "pscsi", .owner = THIS_MODULE, .transport_flags = TRANSPORT_FLAG_PASSTHROUGH, @@ -1154,21 +1139,17 @@ static struct se_subsystem_api pscsi_template = { .show_configfs_dev_params = pscsi_show_configfs_dev_params, .get_device_type = pscsi_get_device_type, .get_blocks = pscsi_get_blocks, + .tb_dev_attrib_attrs = passthrough_attrib_attrs, }; static int __init pscsi_module_init(void) { - struct target_backend_cits *tbc = &pscsi_template.tb_cits; - - target_core_setup_sub_cits(&pscsi_template); - tbc->tb_dev_attrib_cit.ct_attrs = pscsi_backend_dev_attrs; - - return transport_subsystem_register(&pscsi_template); + return transport_backend_register(&pscsi_ops); } static void __exit pscsi_module_exit(void) { - transport_subsystem_release(&pscsi_template); + target_backend_unregister(&pscsi_ops); } MODULE_DESCRIPTION("TCM PSCSI subsystem plugin"); diff --git a/kernel/drivers/target/target_core_pscsi.h b/kernel/drivers/target/target_core_pscsi.h index 820d3052b..6d2007e35 100644 --- a/kernel/drivers/target/target_core_pscsi.h +++ b/kernel/drivers/target/target_core_pscsi.h @@ -16,13 +16,13 @@ #define PS_TIMEOUT_OTHER (500*HZ) #include <linux/device.h> -#include <scsi/scsi_driver.h> -#include <scsi/scsi_device.h> #include <linux/kref.h> #include <linux/kobject.h> +struct scsi_device; + struct pscsi_plugin_task { - unsigned char pscsi_sense[SCSI_SENSE_BUFFERSIZE]; + unsigned char pscsi_sense[TRANSPORT_SENSE_BUFFER]; int pscsi_direction; int pscsi_result; u32 pscsi_resid; diff --git a/kernel/drivers/target/target_core_rd.c b/kernel/drivers/target/target_core_rd.c index d16489b6a..47a833f3a 100644 --- a/kernel/drivers/target/target_core_rd.c +++ b/kernel/drivers/target/target_core_rd.c @@ -29,12 +29,10 @@ #include <linux/timer.h> #include <linux/slab.h> #include <linux/spinlock.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> +#include <scsi/scsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> -#include <target/target_core_backend_configfs.h> #include "target_core_rd.h" @@ -43,10 +41,6 @@ static inline struct rd_dev *RD_DEV(struct se_device *dev) return container_of(dev, struct rd_dev, dev); } -/* rd_attach_hba(): (Part of se_subsystem_api_t template) - * - * - */ static int rd_attach_hba(struct se_hba *hba, u32 host_id) { struct rd_host *rd_host; @@ -63,7 +57,7 @@ static int rd_attach_hba(struct se_hba *hba, u32 host_id) pr_debug("CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on" " Generic Target Core Stack %s\n", hba->hba_id, - RD_HBA_VERSION, TARGET_CORE_MOD_VERSION); + RD_HBA_VERSION, TARGET_CORE_VERSION); return 0; } @@ -144,16 +138,12 @@ static int rd_allocate_sgl_table(struct rd_dev *rd_dev, struct rd_dev_sg_table * sg_per_table = (total_sg_needed > max_sg_per_table) ? max_sg_per_table : total_sg_needed; -#ifdef CONFIG_ARCH_HAS_SG_CHAIN - /* * Reserve extra element for chain entry */ if (sg_per_table < total_sg_needed) chain_entry = 1; -#endif /* CONFIG_ARCH_HAS_SG_CHAIN */ - sg = kcalloc(sg_per_table + chain_entry, sizeof(*sg), GFP_KERNEL); if (!sg) { @@ -164,15 +154,11 @@ static int rd_allocate_sgl_table(struct rd_dev *rd_dev, struct rd_dev_sg_table * sg_init_table(sg, sg_per_table + chain_entry); -#ifdef CONFIG_ARCH_HAS_SG_CHAIN - if (i > 0) { sg_chain(sg_table[i - 1].sg_table, max_sg_per_table + 1, sg); } -#endif /* CONFIG_ARCH_HAS_SG_CHAIN */ - sg_table[i].sg_table = sg; sg_table[i].rd_sg_count = sg_per_table; sg_table[i].page_start_offset = page_offset; @@ -339,6 +325,7 @@ static int rd_configure_device(struct se_device *dev) dev->dev_attrib.hw_block_size = RD_BLOCKSIZE; dev->dev_attrib.hw_max_sectors = UINT_MAX; dev->dev_attrib.hw_queue_depth = RD_MAX_DEVICE_QUEUE_DEPTH; + dev->dev_attrib.is_nonrot = 1; rd_dev->rd_dev_id = rd_host->rd_host_dev_id_count++; @@ -355,12 +342,20 @@ fail: return ret; } +static void rd_dev_call_rcu(struct rcu_head *p) +{ + struct se_device *dev = container_of(p, struct se_device, rcu_head); + struct rd_dev *rd_dev = RD_DEV(dev); + + kfree(rd_dev); +} + static void rd_free_device(struct se_device *dev) { struct rd_dev *rd_dev = RD_DEV(dev); rd_release_device_space(rd_dev); - kfree(rd_dev); + call_rcu(&dev->rcu_head, rd_dev_call_rcu); } static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page) @@ -403,10 +398,7 @@ static struct rd_dev_sg_table *rd_get_prot_table(struct rd_dev *rd_dev, u32 page return NULL; } -typedef sense_reason_t (*dif_verify)(struct se_cmd *, sector_t, unsigned int, - unsigned int, struct scatterlist *, int); - -static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, dif_verify dif_verify) +static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, bool is_read) { struct se_device *se_dev = cmd->se_dev; struct rd_dev *dev = RD_DEV(se_dev); @@ -430,43 +422,16 @@ static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, dif_verify dif_verify) prot_sg = &prot_table->sg_table[prot_page - prot_table->page_start_offset]; -#ifndef CONFIG_ARCH_HAS_SG_CHAIN + if (is_read) + rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0, + prot_sg, prot_offset); + else + rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0, + cmd->t_prot_sg, 0); - prot_npages = DIV_ROUND_UP(prot_offset + sectors * se_dev->prot_length, - PAGE_SIZE); + if (!rc) + sbc_dif_copy_prot(cmd, sectors, is_read, prot_sg, prot_offset); - /* - * Allocate temporaly contiguous scatterlist entries if prot pages - * straddles multiple scatterlist tables. - */ - if (prot_table->page_end_offset < prot_page + prot_npages - 1) { - int i; - - prot_sg = kcalloc(prot_npages, sizeof(*prot_sg), GFP_KERNEL); - if (!prot_sg) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - - need_to_release = true; - sg_init_table(prot_sg, prot_npages); - - for (i = 0; i < prot_npages; i++) { - if (prot_page + i > prot_table->page_end_offset) { - prot_table = rd_get_prot_table(dev, - prot_page + i); - if (!prot_table) { - kfree(prot_sg); - return rc; - } - sg_unmark_end(&prot_sg[i - 1]); - } - prot_sg[i] = prot_table->sg_table[prot_page + i - - prot_table->page_start_offset]; - } - } - -#endif /* !CONFIG_ARCH_HAS_SG_CHAIN */ - - rc = dif_verify(cmd, cmd->t_task_lba, sectors, 0, prot_sg, prot_offset); if (need_to_release) kfree(prot_sg); @@ -512,7 +477,7 @@ rd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type && data_direction == DMA_TO_DEVICE) { - rc = rd_do_prot_rw(cmd, sbc_dif_verify_write); + rc = rd_do_prot_rw(cmd, false); if (rc) return rc; } @@ -580,7 +545,7 @@ rd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type && data_direction == DMA_FROM_DEVICE) { - rc = rd_do_prot_rw(cmd, sbc_dif_verify_read); + rc = rd_do_prot_rw(cmd, true); if (rc) return rc; } @@ -694,42 +659,7 @@ rd_parse_cdb(struct se_cmd *cmd) return sbc_parse_cdb(cmd, &rd_sbc_ops); } -DEF_TB_DEFAULT_ATTRIBS(rd_mcp); - -static struct configfs_attribute *rd_mcp_backend_dev_attrs[] = { - &rd_mcp_dev_attrib_emulate_model_alias.attr, - &rd_mcp_dev_attrib_emulate_dpo.attr, - &rd_mcp_dev_attrib_emulate_fua_write.attr, - &rd_mcp_dev_attrib_emulate_fua_read.attr, - &rd_mcp_dev_attrib_emulate_write_cache.attr, - &rd_mcp_dev_attrib_emulate_ua_intlck_ctrl.attr, - &rd_mcp_dev_attrib_emulate_tas.attr, - &rd_mcp_dev_attrib_emulate_tpu.attr, - &rd_mcp_dev_attrib_emulate_tpws.attr, - &rd_mcp_dev_attrib_emulate_caw.attr, - &rd_mcp_dev_attrib_emulate_3pc.attr, - &rd_mcp_dev_attrib_pi_prot_type.attr, - &rd_mcp_dev_attrib_hw_pi_prot_type.attr, - &rd_mcp_dev_attrib_pi_prot_format.attr, - &rd_mcp_dev_attrib_enforce_pr_isids.attr, - &rd_mcp_dev_attrib_is_nonrot.attr, - &rd_mcp_dev_attrib_emulate_rest_reord.attr, - &rd_mcp_dev_attrib_force_pr_aptpl.attr, - &rd_mcp_dev_attrib_hw_block_size.attr, - &rd_mcp_dev_attrib_block_size.attr, - &rd_mcp_dev_attrib_hw_max_sectors.attr, - &rd_mcp_dev_attrib_optimal_sectors.attr, - &rd_mcp_dev_attrib_hw_queue_depth.attr, - &rd_mcp_dev_attrib_queue_depth.attr, - &rd_mcp_dev_attrib_max_unmap_lba_count.attr, - &rd_mcp_dev_attrib_max_unmap_block_desc_count.attr, - &rd_mcp_dev_attrib_unmap_granularity.attr, - &rd_mcp_dev_attrib_unmap_granularity_alignment.attr, - &rd_mcp_dev_attrib_max_write_same_len.attr, - NULL, -}; - -static struct se_subsystem_api rd_mcp_template = { +static const struct target_backend_ops rd_mcp_ops = { .name = "rd_mcp", .inquiry_prod = "RAMDISK-MCP", .inquiry_rev = RD_MCP_VERSION, @@ -745,25 +675,15 @@ static struct se_subsystem_api rd_mcp_template = { .get_blocks = rd_get_blocks, .init_prot = rd_init_prot, .free_prot = rd_free_prot, + .tb_dev_attrib_attrs = sbc_attrib_attrs, }; int __init rd_module_init(void) { - struct target_backend_cits *tbc = &rd_mcp_template.tb_cits; - int ret; - - target_core_setup_sub_cits(&rd_mcp_template); - tbc->tb_dev_attrib_cit.ct_attrs = rd_mcp_backend_dev_attrs; - - ret = transport_subsystem_register(&rd_mcp_template); - if (ret < 0) { - return ret; - } - - return 0; + return transport_backend_register(&rd_mcp_ops); } void rd_module_exit(void) { - transport_subsystem_release(&rd_mcp_template); + target_backend_unregister(&rd_mcp_ops); } diff --git a/kernel/drivers/target/target_core_sbc.c b/kernel/drivers/target/target_core_sbc.c index 733824e38..98698d875 100644 --- a/kernel/drivers/target/target_core_sbc.c +++ b/kernel/drivers/target/target_core_sbc.c @@ -25,7 +25,7 @@ #include <linux/ratelimit.h> #include <linux/crc-t10dif.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> +#include <scsi/scsi_proto.h> #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> @@ -38,6 +38,7 @@ static sense_reason_t sbc_check_prot(struct se_device *, struct se_cmd *, unsigned char *, u32, bool); +static sense_reason_t sbc_execute_unmap(struct se_cmd *cmd); static sense_reason_t sbc_emulate_readcapacity(struct se_cmd *cmd) @@ -153,6 +154,38 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd) return 0; } +static sense_reason_t +sbc_emulate_startstop(struct se_cmd *cmd) +{ + unsigned char *cdb = cmd->t_task_cdb; + + /* + * See sbc3r36 section 5.25 + * Immediate bit should be set since there is nothing to complete + * POWER CONDITION MODIFIER 0h + */ + if (!(cdb[1] & 1) || cdb[2] || cdb[3]) + return TCM_INVALID_CDB_FIELD; + + /* + * See sbc3r36 section 5.25 + * POWER CONDITION 0h START_VALID - process START and LOEJ + */ + if (cdb[4] >> 4 & 0xf) + return TCM_INVALID_CDB_FIELD; + + /* + * See sbc3r36 section 5.25 + * LOEJ 0h - nothing to load or unload + * START 1h - we are ready + */ + if (!(cdb[4] & 1) || (cdb[4] & 2) || (cdb[4] & 4)) + return TCM_INVALID_CDB_FIELD; + + target_complete_cmd(cmd, SAM_STAT_GOOD); + return 0; +} + sector_t sbc_get_write_same_sectors(struct se_cmd *cmd) { u32 num_blocks; @@ -177,6 +210,23 @@ sector_t sbc_get_write_same_sectors(struct se_cmd *cmd) EXPORT_SYMBOL(sbc_get_write_same_sectors); static sense_reason_t +sbc_execute_write_same_unmap(struct se_cmd *cmd) +{ + struct sbc_ops *ops = cmd->protocol_data; + sector_t nolb = sbc_get_write_same_sectors(cmd); + sense_reason_t ret; + + if (nolb) { + ret = ops->execute_unmap(cmd, cmd->t_task_lba, nolb); + if (ret) + return ret; + } + + target_complete_cmd(cmd, GOOD); + return 0; +} + +static sense_reason_t sbc_emulate_noop(struct se_cmd *cmd) { target_complete_cmd(cmd, GOOD); @@ -299,7 +349,7 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o * translated into block discard requests within backend code. */ if (flags[0] & 0x08) { - if (!ops->execute_write_same_unmap) + if (!ops->execute_unmap) return TCM_UNSUPPORTED_SCSI_OPCODE; if (!dev->dev_attrib.emulate_tpws) { @@ -307,7 +357,7 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o " has emulate_tpws disabled\n"); return TCM_UNSUPPORTED_SCSI_OPCODE; } - cmd->execute_cmd = ops->execute_write_same_unmap; + cmd->execute_cmd = sbc_execute_write_same_unmap; return 0; } if (!ops->execute_write_same) @@ -321,7 +371,8 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o return 0; } -static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd, bool success) +static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd, bool success, + int *post_ret) { unsigned char *buf, *addr; struct scatterlist *sg; @@ -381,11 +432,14 @@ out: static sense_reason_t sbc_execute_rw(struct se_cmd *cmd) { - return cmd->execute_rw(cmd, cmd->t_data_sg, cmd->t_data_nents, + struct sbc_ops *ops = cmd->protocol_data; + + return ops->execute_rw(cmd, cmd->t_data_sg, cmd->t_data_nents, cmd->data_direction); } -static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success) +static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success, + int *post_ret) { struct se_device *dev = cmd->se_dev; @@ -395,8 +449,10 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success) * sent to the backend driver. */ spin_lock_irq(&cmd->t_state_lock); - if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status) + if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status) { cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST; + *post_ret = 1; + } spin_unlock_irq(&cmd->t_state_lock); /* @@ -408,7 +464,8 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success) return TCM_NO_SENSE; } -static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success) +static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success, + int *post_ret) { struct se_device *dev = cmd->se_dev; struct scatterlist *write_sg = NULL, *sg; @@ -504,11 +561,11 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool succes if (block_size < PAGE_SIZE) { sg_set_page(&write_sg[i], m.page, block_size, - block_size); + m.piter.sg->offset + block_size); } else { sg_miter_next(&m); sg_set_page(&write_sg[i], m.page, block_size, - 0); + m.piter.sg->offset); } len -= block_size; i++; @@ -560,6 +617,7 @@ out: static sense_reason_t sbc_compare_and_write(struct se_cmd *cmd) { + struct sbc_ops *ops = cmd->protocol_data; struct se_device *dev = cmd->se_dev; sense_reason_t ret; int rc; @@ -579,7 +637,7 @@ sbc_compare_and_write(struct se_cmd *cmd) */ cmd->data_length = cmd->t_task_nolb * dev->dev_attrib.block_size; - ret = cmd->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents, + ret = ops->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents, DMA_FROM_DEVICE); if (ret) { cmd->transport_complete_callback = NULL; @@ -738,14 +796,15 @@ static int sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb) { if (cdb[1] & 0x10) { - if (!dev->dev_attrib.emulate_dpo) { + /* see explanation in spc_emulate_modesense */ + if (!target_check_fua(dev)) { pr_err("Got CDB: 0x%02x with DPO bit set, but device" " does not advertise support for DPO\n", cdb[0]); return -EINVAL; } } if (cdb[1] & 0x8) { - if (!dev->dev_attrib.emulate_fua_write || !se_dev_check_wce(dev)) { + if (!target_check_fua(dev)) { pr_err("Got CDB: 0x%02x with FUA bit set, but device" " does not advertise support for FUA write\n", cdb[0]); @@ -765,12 +824,13 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) u32 sectors = 0; sense_reason_t ret; + cmd->protocol_data = ops; + switch (cdb[0]) { case READ_6: sectors = transport_get_sectors_6(cdb); cmd->t_task_lba = transport_lba_21(cdb); cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case READ_10: @@ -785,7 +845,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case READ_12: @@ -800,7 +859,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case READ_16: @@ -815,14 +873,12 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case WRITE_6: sectors = transport_get_sectors_6(cdb); cmd->t_task_lba = transport_lba_21(cdb); cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case WRITE_10: @@ -838,7 +894,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case WRITE_12: @@ -853,7 +908,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case WRITE_16: @@ -868,7 +922,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; break; case XDWRITEREAD_10: @@ -886,7 +939,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) /* * Setup BIDI XOR callback to be run after I/O completion. */ - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; cmd->transport_complete_callback = &xdreadwrite_callback; break; @@ -910,7 +962,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) * Setup BIDI XOR callback to be run during after I/O * completion. */ - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_execute_rw; cmd->transport_complete_callback = &xdreadwrite_callback; break; @@ -946,6 +997,9 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) " than 1\n", sectors); return TCM_INVALID_CDB_FIELD; } + if (sbc_check_dpofua(dev, cmd, cdb)) + return TCM_INVALID_CDB_FIELD; + /* * Double size because we have two buffers, note that * zero is not an error.. @@ -954,7 +1008,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) cmd->t_task_lba = get_unaligned_be64(&cdb[2]); cmd->t_task_nolb = sectors; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB | SCF_COMPARE_AND_WRITE; - cmd->execute_rw = ops->execute_rw; cmd->execute_cmd = sbc_compare_and_write; cmd->transport_complete_callback = compare_and_write_callback; break; @@ -1004,7 +1057,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return TCM_UNSUPPORTED_SCSI_OPCODE; } size = get_unaligned_be16(&cdb[7]); - cmd->execute_cmd = ops->execute_unmap; + cmd->execute_cmd = sbc_execute_unmap; break; case WRITE_SAME_16: sectors = transport_get_sectors_16(cdb); @@ -1056,6 +1109,10 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) size = 0; cmd->execute_cmd = sbc_emulate_noop; break; + case START_STOP: + size = 0; + cmd->execute_cmd = sbc_emulate_startstop; + break; default: ret = spc_parse_cdb(cmd, &size); if (ret) @@ -1092,12 +1149,10 @@ u32 sbc_get_device_type(struct se_device *dev) } EXPORT_SYMBOL(sbc_get_device_type); -sense_reason_t -sbc_execute_unmap(struct se_cmd *cmd, - sense_reason_t (*do_unmap_fn)(struct se_cmd *, void *, - sector_t, sector_t), - void *priv) +static sense_reason_t +sbc_execute_unmap(struct se_cmd *cmd) { + struct sbc_ops *ops = cmd->protocol_data; struct se_device *dev = cmd->se_dev; unsigned char *buf, *ptr = NULL; sector_t lba; @@ -1161,7 +1216,7 @@ sbc_execute_unmap(struct se_cmd *cmd, goto err; } - ret = do_unmap_fn(cmd, priv, lba, range); + ret = ops->execute_unmap(cmd, lba, range); if (ret) goto err; @@ -1175,34 +1230,56 @@ err: target_complete_cmd(cmd, GOOD); return ret; } -EXPORT_SYMBOL(sbc_execute_unmap); void sbc_dif_generate(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; - struct se_dif_v1_tuple *sdt; - struct scatterlist *dsg, *psg = cmd->t_prot_sg; + struct t10_pi_tuple *sdt; + struct scatterlist *dsg = cmd->t_data_sg, *psg; sector_t sector = cmd->t_task_lba; void *daddr, *paddr; int i, j, offset = 0; + unsigned int block_size = dev->dev_attrib.block_size; - for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) { - daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; + for_each_sg(cmd->t_prot_sg, psg, cmd->t_prot_nents, i) { paddr = kmap_atomic(sg_page(psg)) + psg->offset; + daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; - for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) { + for (j = 0; j < psg->length; + j += sizeof(*sdt)) { + __u16 crc; + unsigned int avail; + + if (offset >= dsg->length) { + offset -= dsg->length; + kunmap_atomic(daddr - dsg->offset); + dsg = sg_next(dsg); + if (!dsg) { + kunmap_atomic(paddr - psg->offset); + return; + } + daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; + } - if (offset >= psg->length) { - kunmap_atomic(paddr); - psg = sg_next(psg); - paddr = kmap_atomic(sg_page(psg)) + psg->offset; - offset = 0; + sdt = paddr + j; + avail = min(block_size, dsg->length - offset); + crc = crc_t10dif(daddr + offset, avail); + if (avail < block_size) { + kunmap_atomic(daddr - dsg->offset); + dsg = sg_next(dsg); + if (!dsg) { + kunmap_atomic(paddr - psg->offset); + return; + } + daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; + offset = block_size - avail; + crc = crc_t10dif_update(crc, daddr, offset); + } else { + offset += block_size; } - sdt = paddr + offset; - sdt->guard_tag = cpu_to_be16(crc_t10dif(daddr + j, - dev->dev_attrib.block_size)); + sdt->guard_tag = cpu_to_be16(crc); if (cmd->prot_type == TARGET_DIF_TYPE1_PROT) sdt->ref_tag = cpu_to_be32(sector & 0xffffffff); sdt->app_tag = 0; @@ -1215,26 +1292,23 @@ sbc_dif_generate(struct se_cmd *cmd) be32_to_cpu(sdt->ref_tag)); sector++; - offset += sizeof(struct se_dif_v1_tuple); } - kunmap_atomic(paddr); - kunmap_atomic(daddr); + kunmap_atomic(daddr - dsg->offset); + kunmap_atomic(paddr - psg->offset); } } static sense_reason_t -sbc_dif_v1_verify(struct se_cmd *cmd, struct se_dif_v1_tuple *sdt, - const void *p, sector_t sector, unsigned int ei_lba) +sbc_dif_v1_verify(struct se_cmd *cmd, struct t10_pi_tuple *sdt, + __u16 crc, sector_t sector, unsigned int ei_lba) { - struct se_device *dev = cmd->se_dev; - int block_size = dev->dev_attrib.block_size; __be16 csum; if (!(cmd->prot_checks & TARGET_DIF_CHECK_GUARD)) goto check_ref; - csum = cpu_to_be16(crc_t10dif(p, block_size)); + csum = cpu_to_be16(crc); if (sdt->guard_tag != csum) { pr_err("DIFv1 checksum failed on sector %llu guard tag 0x%04x" @@ -1266,9 +1340,8 @@ check_ref: return 0; } -static void -sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read, - struct scatterlist *sg, int sg_off) +void sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read, + struct scatterlist *sg, int sg_off) { struct se_device *dev = cmd->se_dev; struct scatterlist *psg; @@ -1300,100 +1373,54 @@ sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read, copied += len; psg_len -= len; + kunmap_atomic(addr - sg->offset - offset); + if (offset >= sg->length) { sg = sg_next(sg); offset = 0; } - kunmap_atomic(addr); } - kunmap_atomic(paddr); + kunmap_atomic(paddr - psg->offset); } } +EXPORT_SYMBOL(sbc_dif_copy_prot); sense_reason_t -sbc_dif_verify_write(struct se_cmd *cmd, sector_t start, unsigned int sectors, - unsigned int ei_lba, struct scatterlist *sg, int sg_off) +sbc_dif_verify(struct se_cmd *cmd, sector_t start, unsigned int sectors, + unsigned int ei_lba, struct scatterlist *psg, int psg_off) { struct se_device *dev = cmd->se_dev; - struct se_dif_v1_tuple *sdt; - struct scatterlist *dsg, *psg = cmd->t_prot_sg; + struct t10_pi_tuple *sdt; + struct scatterlist *dsg = cmd->t_data_sg; sector_t sector = start; void *daddr, *paddr; - int i, j, offset = 0; + int i; sense_reason_t rc; + int dsg_off = 0; + unsigned int block_size = dev->dev_attrib.block_size; - for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) { - daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; + for (; psg && sector < start + sectors; psg = sg_next(psg)) { paddr = kmap_atomic(sg_page(psg)) + psg->offset; - - for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) { - - if (offset >= psg->length) { - kunmap_atomic(paddr); - psg = sg_next(psg); - paddr = kmap_atomic(sg_page(psg)) + psg->offset; - offset = 0; - } - - sdt = paddr + offset; - - pr_debug("DIF WRITE sector: %llu guard_tag: 0x%04x" - " app_tag: 0x%04x ref_tag: %u\n", - (unsigned long long)sector, sdt->guard_tag, - sdt->app_tag, be32_to_cpu(sdt->ref_tag)); - - rc = sbc_dif_v1_verify(cmd, sdt, daddr + j, sector, - ei_lba); - if (rc) { - kunmap_atomic(paddr); - kunmap_atomic(daddr); - cmd->bad_sector = sector; - return rc; - } - - sector++; - ei_lba++; - offset += sizeof(struct se_dif_v1_tuple); - } - - kunmap_atomic(paddr); - kunmap_atomic(daddr); - } - if (!sg) - return 0; - - sbc_dif_copy_prot(cmd, sectors, false, sg, sg_off); - - return 0; -} -EXPORT_SYMBOL(sbc_dif_verify_write); - -static sense_reason_t -__sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, - unsigned int ei_lba, struct scatterlist *sg, int sg_off) -{ - struct se_device *dev = cmd->se_dev; - struct se_dif_v1_tuple *sdt; - struct scatterlist *dsg, *psg = sg; - sector_t sector = start; - void *daddr, *paddr; - int i, j, offset = sg_off; - sense_reason_t rc; - - for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) { daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; - paddr = kmap_atomic(sg_page(psg)) + sg->offset; - for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) { - - if (offset >= psg->length) { - kunmap_atomic(paddr); - psg = sg_next(psg); - paddr = kmap_atomic(sg_page(psg)) + psg->offset; - offset = 0; + for (i = psg_off; i < psg->length && + sector < start + sectors; + i += sizeof(*sdt)) { + __u16 crc; + unsigned int avail; + + if (dsg_off >= dsg->length) { + dsg_off -= dsg->length; + kunmap_atomic(daddr - dsg->offset); + dsg = sg_next(dsg); + if (!dsg) { + kunmap_atomic(paddr - psg->offset); + return 0; + } + daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; } - sdt = paddr + offset; + sdt = paddr + i; pr_debug("DIF READ sector: %llu guard_tag: 0x%04x" " app_tag: 0x%04x ref_tag: %u\n", @@ -1401,53 +1428,43 @@ __sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, sdt->app_tag, be32_to_cpu(sdt->ref_tag)); if (sdt->app_tag == cpu_to_be16(0xffff)) { - sector++; - offset += sizeof(struct se_dif_v1_tuple); - continue; + dsg_off += block_size; + goto next; + } + + avail = min(block_size, dsg->length - dsg_off); + crc = crc_t10dif(daddr + dsg_off, avail); + if (avail < block_size) { + kunmap_atomic(daddr - dsg->offset); + dsg = sg_next(dsg); + if (!dsg) { + kunmap_atomic(paddr - psg->offset); + return 0; + } + daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; + dsg_off = block_size - avail; + crc = crc_t10dif_update(crc, daddr, dsg_off); + } else { + dsg_off += block_size; } - rc = sbc_dif_v1_verify(cmd, sdt, daddr + j, sector, - ei_lba); + rc = sbc_dif_v1_verify(cmd, sdt, crc, sector, ei_lba); if (rc) { - kunmap_atomic(paddr); - kunmap_atomic(daddr); + kunmap_atomic(daddr - dsg->offset); + kunmap_atomic(paddr - psg->offset); cmd->bad_sector = sector; return rc; } - +next: sector++; ei_lba++; - offset += sizeof(struct se_dif_v1_tuple); } - kunmap_atomic(paddr); - kunmap_atomic(daddr); + psg_off = 0; + kunmap_atomic(daddr - dsg->offset); + kunmap_atomic(paddr - psg->offset); } return 0; } - -sense_reason_t -sbc_dif_read_strip(struct se_cmd *cmd) -{ - struct se_device *dev = cmd->se_dev; - u32 sectors = cmd->prot_length / dev->prot_length; - - return __sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, 0, - cmd->t_prot_sg, 0); -} - -sense_reason_t -sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, - unsigned int ei_lba, struct scatterlist *sg, int sg_off) -{ - sense_reason_t rc; - - rc = __sbc_dif_verify_read(cmd, start, sectors, ei_lba, sg, sg_off); - if (rc) - return rc; - - sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off); - return 0; -} -EXPORT_SYMBOL(sbc_dif_verify_read); +EXPORT_SYMBOL(sbc_dif_verify); diff --git a/kernel/drivers/target/target_core_spc.c b/kernel/drivers/target/target_core_spc.c index 7912aa124..9413e1a94 100644 --- a/kernel/drivers/target/target_core_spc.c +++ b/kernel/drivers/target/target_core_spc.c @@ -24,7 +24,8 @@ #include <linux/module.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> +#include <scsi/scsi_proto.h> +#include <scsi/scsi_common.h> #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> @@ -37,10 +38,9 @@ #include "target_core_ua.h" #include "target_core_xcopy.h" -static void spc_fill_alua_data(struct se_port *port, unsigned char *buf) +static void spc_fill_alua_data(struct se_lun *lun, unsigned char *buf) { struct t10_alua_tg_pt_gp *tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; /* * Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS. @@ -53,17 +53,11 @@ static void spc_fill_alua_data(struct se_port *port, unsigned char *buf) * * See spc4r17 section 6.4.2 Table 135 */ - if (!port) - return; - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) - return; - - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; if (tg_pt_gp) buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type; - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); } sense_reason_t @@ -94,7 +88,7 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) /* * Enable SCCS and TPGS fields for Emulated ALUA */ - spc_fill_alua_data(lun->lun_sep, buf); + spc_fill_alua_data(lun, buf); /* * Set Third-Party Copy (3PC) bit to indicate support for EXTENDED_COPY @@ -181,11 +175,9 @@ spc_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf) { struct se_device *dev = cmd->se_dev; struct se_lun *lun = cmd->se_lun; - struct se_port *port = NULL; struct se_portal_group *tpg = NULL; struct t10_alua_lu_gp_member *lu_gp_mem; struct t10_alua_tg_pt_gp *tg_pt_gp; - struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; unsigned char *prod = &dev->t10_wwn.model[0]; u32 prod_len; u32 unit_serial_len, off = 0; @@ -267,18 +259,15 @@ check_t10_vend_desc: /* Header size for Designation descriptor */ len += (id_len + 4); off += (id_len + 4); - /* - * struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD - */ - port = lun->lun_sep; - if (port) { + + if (1) { struct t10_alua_lu_gp *lu_gp; u32 padding, scsi_name_len, scsi_target_len; u16 lu_gp_id = 0; u16 tg_pt_gp_id = 0; u16 tpgt; - tpg = port->sep_tpg; + tpg = lun->lun_tpg; /* * Relative target port identifer, see spc4r17 * section 7.7.3.7 @@ -286,8 +275,7 @@ check_t10_vend_desc: * Get the PROTOCOL IDENTIFIER as defined by spc4r17 * section 7.5.1 Table 362 */ - buf[off] = - (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); + buf[off] = tpg->proto_id << 4; buf[off++] |= 0x1; /* CODE SET == Binary */ buf[off] = 0x80; /* Set PIV=1 */ /* Set ASSOCIATION == target port: 01b */ @@ -299,8 +287,8 @@ check_t10_vend_desc: /* Skip over Obsolete field in RTPI payload * in Table 472 */ off += 2; - buf[off++] = ((port->sep_rtpi >> 8) & 0xff); - buf[off++] = (port->sep_rtpi & 0xff); + buf[off++] = ((lun->lun_rtpi >> 8) & 0xff); + buf[off++] = (lun->lun_rtpi & 0xff); len += 8; /* Header size + Designation descriptor */ /* * Target port group identifier, see spc4r17 @@ -309,21 +297,16 @@ check_t10_vend_desc: * Get the PROTOCOL IDENTIFIER as defined by spc4r17 * section 7.5.1 Table 362 */ - tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; - if (!tg_pt_gp_mem) - goto check_lu_gp; - - spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); - tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; + spin_lock(&lun->lun_tg_pt_gp_lock); + tg_pt_gp = lun->lun_tg_pt_gp; if (!tg_pt_gp) { - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); goto check_lu_gp; } tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id; - spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); + spin_unlock(&lun->lun_tg_pt_gp_lock); - buf[off] = - (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); + buf[off] = tpg->proto_id << 4; buf[off++] |= 0x1; /* CODE SET == Binary */ buf[off] = 0x80; /* Set PIV=1 */ /* Set ASSOCIATION == target port: 01b */ @@ -371,8 +354,7 @@ check_lu_gp: * section 7.5.1 Table 362 */ check_scsi_name: - buf[off] = - (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); + buf[off] = tpg->proto_id << 4; buf[off++] |= 0x3; /* CODE SET == UTF-8 */ buf[off] = 0x80; /* Set PIV=1 */ /* Set ASSOCIATION == target port: 01b */ @@ -412,8 +394,7 @@ check_scsi_name: /* * Target device designator */ - buf[off] = - (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); + buf[off] = tpg->proto_id << 4; buf[off++] |= 0x3; /* CODE SET == UTF-8 */ buf[off] = 0x80; /* Set PIV=1 */ /* Set ASSOCIATION == target device: 10b */ @@ -473,15 +454,22 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) cmd->se_sess->sess_prot_type == TARGET_DIF_TYPE1_PROT) buf[4] = 0x5; else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT || - cmd->se_sess->sess_prot_type == TARGET_DIF_TYPE3_PROT) + cmd->se_sess->sess_prot_type == TARGET_DIF_TYPE3_PROT) buf[4] = 0x4; } + /* logical unit supports type 1 and type 3 protection */ + if ((dev->transport->get_device_type(dev) == TYPE_DISK) && + (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) && + (dev->dev_attrib.pi_prot_type || cmd->se_sess->sess_prot_type)) { + buf[4] |= (0x3 << 3); + } + /* Set HEADSUP, ORDSUP, SIMPSUP */ buf[5] = 0x07; /* If WriteCache emulation is enabled, set V_SUP */ - if (se_dev_check_wce(dev)) + if (target_check_wce(dev)) buf[6] = 0x01; /* If an LBA map is present set R_SUP */ spin_lock(&cmd->se_dev->t10_alua.lba_map_lock); @@ -496,8 +484,8 @@ static sense_reason_t spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) { struct se_device *dev = cmd->se_dev; - int have_tp = 0; - int opt, min; + u32 mtl = 0; + int have_tp = 0, opt, min; /* * Following spc3r22 section 6.5.3 Block Limits VPD page, when @@ -528,8 +516,15 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) /* * Set MAXIMUM TRANSFER LENGTH + * + * XXX: Currently assumes single PAGE_SIZE per scatterlist for fabrics + * enforcing maximum HW scatter-gather-list entry limit */ - put_unaligned_be32(dev->dev_attrib.hw_max_sectors, &buf[8]); + if (cmd->se_tfo->max_data_sg_nents) { + mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE) / + dev->dev_attrib.block_size; + } + put_unaligned_be32(min_not_zero(mtl, dev->dev_attrib.hw_max_sectors), &buf[8]); /* * Set OPTIMAL TRANSFER LENGTH @@ -698,7 +693,7 @@ static sense_reason_t spc_emulate_inquiry(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; - struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg; + struct se_portal_group *tpg = cmd->se_lun->lun_tpg; unsigned char *rbuf; unsigned char *cdb = cmd->t_task_cdb; unsigned char *buf; @@ -712,7 +707,7 @@ spc_emulate_inquiry(struct se_cmd *cmd) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } - if (dev == tpg->tpg_virt_lun0.lun_se_dev) + if (dev == rcu_access_pointer(tpg->tpg_virt_lun0->lun_se_dev)) buf[0] = 0x3f; /* Not connected */ else buf[0] = dev->transport->get_device_type(dev); @@ -780,7 +775,12 @@ static int spc_modesense_control(struct se_cmd *cmd, u8 pc, u8 *p) if (pc == 1) goto out; - p[2] = 2; + /* GLTSD: No implicit save of log parameters */ + p[2] = (1 << 1); + if (target_sense_desc_format(dev)) + /* D_SENSE: Descriptor format sense data for 64bit sectors */ + p[2] |= (1 << 2); + /* * From spc4r23, 7.4.7 Control mode page * @@ -888,7 +888,7 @@ static int spc_modesense_caching(struct se_cmd *cmd, u8 pc, u8 *p) if (pc == 1) goto out; - if (se_dev_check_wce(dev)) + if (target_check_wce(dev)) p[2] = 0x04; /* Write Cache Enable */ p[12] = 0x20; /* Disabled Read Ahead */ @@ -985,6 +985,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd) int length = 0; int ret; int i; + bool read_only = target_lun_is_rdonly(cmd);; memset(buf, 0, SE_MODE_PAGE_BUF); @@ -995,13 +996,15 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd) length = ten ? 3 : 2; /* DEVICE-SPECIFIC PARAMETER */ - if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || - (cmd->se_deve && - (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) + if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || read_only) spc_modesense_write_protect(&buf[length], type); - if ((se_dev_check_wce(dev)) && - (dev->dev_attrib.emulate_fua_write > 0)) + /* + * SBC only allows us to enable FUA and DPO together. Fortunately + * DPO is explicitly specified as a hint, so a noop is a perfectly + * valid implementation. + */ + if (target_check_fua(dev)) spc_modesense_dpofua(&buf[length], type); ++length; @@ -1160,6 +1163,7 @@ static sense_reason_t spc_emulate_request_sense(struct se_cmd *cmd) unsigned char *rbuf; u8 ua_asc = 0, ua_ascq = 0; unsigned char buf[SE_SENSE_BUF]; + bool desc_format = target_sense_desc_format(cmd->se_dev); memset(buf, 0, SE_SENSE_BUF); @@ -1173,32 +1177,11 @@ static sense_reason_t spc_emulate_request_sense(struct se_cmd *cmd) if (!rbuf) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { - /* - * CURRENT ERROR, UNIT ATTENTION - */ - buf[0] = 0x70; - buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; - - /* - * The Additional Sense Code (ASC) from the UNIT ATTENTION - */ - buf[SPC_ASC_KEY_OFFSET] = ua_asc; - buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq; - buf[7] = 0x0A; - } else { - /* - * CURRENT ERROR, NO SENSE - */ - buf[0] = 0x70; - buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE; - - /* - * NO ADDITIONAL SENSE INFORMATION - */ - buf[SPC_ASC_KEY_OFFSET] = 0x00; - buf[7] = 0x0A; - } + if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) + scsi_build_sense_buffer(desc_format, buf, UNIT_ATTENTION, + ua_asc, ua_ascq); + else + scsi_build_sense_buffer(desc_format, buf, NO_SENSE, 0x0, 0x0); memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length)); transport_kunmap_data_sg(cmd); @@ -1211,17 +1194,14 @@ sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd) { struct se_dev_entry *deve; struct se_session *sess = cmd->se_sess; + struct se_node_acl *nacl; + struct scsi_lun slun; unsigned char *buf; - u32 lun_count = 0, offset = 8, i; - - if (cmd->data_length < 16) { - pr_warn("REPORT LUNS allocation length %u too small\n", - cmd->data_length); - return TCM_INVALID_CDB_FIELD; - } + u32 lun_count = 0, offset = 8; + __be32 len; buf = transport_kmap_data_sg(cmd); - if (!buf) + if (cmd->data_length && !buf) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; /* @@ -1229,41 +1209,49 @@ sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd) * coming via a target_core_mod PASSTHROUGH op, and not through * a $FABRIC_MOD. In that case, report LUN=0 only. */ - if (!sess) { - int_to_scsilun(0, (struct scsi_lun *)&buf[offset]); - lun_count = 1; + if (!sess) goto done; - } - spin_lock_irq(&sess->se_node_acl->device_list_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - deve = sess->se_node_acl->device_list[i]; - if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) - continue; + nacl = sess->se_node_acl; + + rcu_read_lock(); + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) { /* * We determine the correct LUN LIST LENGTH even once we * have reached the initial allocation length. * See SPC2-R20 7.19. */ lun_count++; - if ((offset + 8) > cmd->data_length) + if (offset >= cmd->data_length) continue; - int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]); + int_to_scsilun(deve->mapped_lun, &slun); + memcpy(buf + offset, &slun, + min(8u, cmd->data_length - offset)); offset += 8; } - spin_unlock_irq(&sess->se_node_acl->device_list_lock); + rcu_read_unlock(); /* * See SPC3 r07, page 159. */ done: - lun_count *= 8; - buf[0] = ((lun_count >> 24) & 0xff); - buf[1] = ((lun_count >> 16) & 0xff); - buf[2] = ((lun_count >> 8) & 0xff); - buf[3] = (lun_count & 0xff); - transport_kunmap_data_sg(cmd); + /* + * If no LUNs are accessible, report virtual LUN 0. + */ + if (lun_count == 0) { + int_to_scsilun(0, &slun); + if (cmd->data_length > 8) + memcpy(buf + offset, &slun, + min(8u, cmd->data_length - offset)); + lun_count = 1; + } + + if (buf) { + len = cpu_to_be32(lun_count * 8); + memcpy(buf, &len, min_t(int, sizeof len, cmd->data_length)); + transport_kunmap_data_sg(cmd); + } target_complete_cmd_with_length(cmd, GOOD, 8 + lun_count * 8); return 0; @@ -1422,9 +1410,6 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) } break; default: - pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode" - " 0x%02x, sending CHECK_CONDITION.\n", - cmd->se_tfo->get_fabric_name(), cdb[0]); return TCM_UNSUPPORTED_SCSI_OPCODE; } diff --git a/kernel/drivers/target/target_core_stat.c b/kernel/drivers/target/target_core_stat.c index 03538994d..81a6b3e07 100644 --- a/kernel/drivers/target/target_core_stat.c +++ b/kernel/drivers/target/target_core_stat.c @@ -33,15 +33,10 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/configfs.h> -#include <scsi/scsi.h> -#include <scsi/scsi_device.h> -#include <scsi/scsi_host.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "target_core_internal.h" @@ -59,75 +54,49 @@ * SCSI Device Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_dev, se_dev_stat_grps); -#define DEV_STAT_SCSI_DEV_ATTR(_name, _mode) \ -static struct target_stat_scsi_dev_attribute \ - target_stat_scsi_dev_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_dev_show_attr_##_name, \ - target_stat_scsi_dev_store_attr_##_name); - -#define DEV_STAT_SCSI_DEV_ATTR_RO(_name) \ -static struct target_stat_scsi_dev_attribute \ - target_stat_scsi_dev_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_dev_show_attr_##_name); +static struct se_device *to_stat_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_dev_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} -static ssize_t target_stat_scsi_dev_show_attr_inst( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_inst_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - struct se_hba *hba = dev->se_hba; + struct se_hba *hba = to_stat_dev(item)->se_hba; return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); } -DEV_STAT_SCSI_DEV_ATTR_RO(inst); -static ssize_t target_stat_scsi_dev_show_attr_indx( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_indx_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->dev_index); } -DEV_STAT_SCSI_DEV_ATTR_RO(indx); -static ssize_t target_stat_scsi_dev_show_attr_role( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_role_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "Target\n"); } -DEV_STAT_SCSI_DEV_ATTR_RO(role); -static ssize_t target_stat_scsi_dev_show_attr_ports( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_ports_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count); + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->export_count); } -DEV_STAT_SCSI_DEV_ATTR_RO(ports); -CONFIGFS_EATTR_OPS(target_stat_scsi_dev, se_dev_stat_grps, scsi_dev_group); +CONFIGFS_ATTR_RO(target_stat_, inst); +CONFIGFS_ATTR_RO(target_stat_, indx); +CONFIGFS_ATTR_RO(target_stat_, role); +CONFIGFS_ATTR_RO(target_stat_, ports); static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { - &target_stat_scsi_dev_inst.attr, - &target_stat_scsi_dev_indx.attr, - &target_stat_scsi_dev_role.attr, - &target_stat_scsi_dev_ports.attr, + &target_stat_attr_inst, + &target_stat_attr_indx, + &target_stat_attr_role, + &target_stat_attr_ports, NULL, }; -static struct configfs_item_operations target_stat_scsi_dev_attrib_ops = { - .show_attribute = target_stat_scsi_dev_attr_show, - .store_attribute = target_stat_scsi_dev_attr_store, -}; - static struct config_item_type target_stat_scsi_dev_cit = { - .ct_item_ops = &target_stat_scsi_dev_attrib_ops, .ct_attrs = target_stat_scsi_dev_attrs, .ct_owner = THIS_MODULE, }; @@ -135,109 +104,78 @@ static struct config_item_type target_stat_scsi_dev_cit = { /* * SCSI Target Device Table */ +static struct se_device *to_stat_tgt_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_tgt_dev_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} -CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_dev, se_dev_stat_grps); -#define DEV_STAT_SCSI_TGT_DEV_ATTR(_name, _mode) \ -static struct target_stat_scsi_tgt_dev_attribute \ - target_stat_scsi_tgt_dev_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_tgt_dev_show_attr_##_name, \ - target_stat_scsi_tgt_dev_store_attr_##_name); - -#define DEV_STAT_SCSI_TGT_DEV_ATTR_RO(_name) \ -static struct target_stat_scsi_tgt_dev_attribute \ - target_stat_scsi_tgt_dev_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_tgt_dev_show_attr_##_name); - -static ssize_t target_stat_scsi_tgt_dev_show_attr_inst( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_inst_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - struct se_hba *hba = dev->se_hba; + struct se_hba *hba = to_stat_tgt_dev(item)->se_hba; return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(inst); -static ssize_t target_stat_scsi_tgt_dev_show_attr_indx( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_indx_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_tgt_dev(item)->dev_index); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(indx); -static ssize_t target_stat_scsi_tgt_dev_show_attr_num_lus( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_num_lus_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(num_lus); -static ssize_t target_stat_scsi_tgt_dev_show_attr_status( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_status_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - if (dev->export_count) + if (to_stat_tgt_dev(item)->export_count) return snprintf(page, PAGE_SIZE, "activated"); else return snprintf(page, PAGE_SIZE, "deactivated"); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(status); -static ssize_t target_stat_scsi_tgt_dev_show_attr_non_access_lus( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_non_access_lus_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); int non_accessible_lus; - if (dev->export_count) + if (to_stat_tgt_dev(item)->export_count) non_accessible_lus = 0; else non_accessible_lus = 1; return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(non_access_lus); -static ssize_t target_stat_scsi_tgt_dev_show_attr_resets( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_resets_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - return snprintf(page, PAGE_SIZE, "%lu\n", - atomic_long_read(&dev->num_resets)); + atomic_long_read(&to_stat_tgt_dev(item)->num_resets)); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets); - -CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_dev, se_dev_stat_grps, scsi_tgt_dev_group); +CONFIGFS_ATTR_RO(target_stat_tgt_, inst); +CONFIGFS_ATTR_RO(target_stat_tgt_, indx); +CONFIGFS_ATTR_RO(target_stat_tgt_, num_lus); +CONFIGFS_ATTR_RO(target_stat_tgt_, status); +CONFIGFS_ATTR_RO(target_stat_tgt_, non_access_lus); +CONFIGFS_ATTR_RO(target_stat_tgt_, resets); static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { - &target_stat_scsi_tgt_dev_inst.attr, - &target_stat_scsi_tgt_dev_indx.attr, - &target_stat_scsi_tgt_dev_num_lus.attr, - &target_stat_scsi_tgt_dev_status.attr, - &target_stat_scsi_tgt_dev_non_access_lus.attr, - &target_stat_scsi_tgt_dev_resets.attr, + &target_stat_tgt_attr_inst, + &target_stat_tgt_attr_indx, + &target_stat_tgt_attr_num_lus, + &target_stat_tgt_attr_status, + &target_stat_tgt_attr_non_access_lus, + &target_stat_tgt_attr_resets, NULL, }; -static struct configfs_item_operations target_stat_scsi_tgt_dev_attrib_ops = { - .show_attribute = target_stat_scsi_tgt_dev_attr_show, - .store_attribute = target_stat_scsi_tgt_dev_attr_store, -}; - static struct config_item_type target_stat_scsi_tgt_dev_cit = { - .ct_item_ops = &target_stat_scsi_tgt_dev_attrib_ops, .ct_attrs = target_stat_scsi_tgt_dev_attrs, .ct_owner = THIS_MODULE, }; @@ -246,72 +184,50 @@ static struct config_item_type target_stat_scsi_tgt_dev_cit = { * SCSI Logical Unit Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_lu, se_dev_stat_grps); -#define DEV_STAT_SCSI_LU_ATTR(_name, _mode) \ -static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_lu_show_attr_##_name, \ - target_stat_scsi_lu_store_attr_##_name); - -#define DEV_STAT_SCSI_LU_ATTR_RO(_name) \ -static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_lu_show_attr_##_name); +static struct se_device *to_stat_lu_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_lu_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} -static ssize_t target_stat_scsi_lu_show_attr_inst( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_inst_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - struct se_hba *hba = dev->se_hba; + struct se_hba *hba = to_stat_lu_dev(item)->se_hba; return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); } -DEV_STAT_SCSI_LU_ATTR_RO(inst); -static ssize_t target_stat_scsi_lu_show_attr_dev( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_dev_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + return snprintf(page, PAGE_SIZE, "%u\n", + to_stat_lu_dev(item)->dev_index); } -DEV_STAT_SCSI_LU_ATTR_RO(dev); -static ssize_t target_stat_scsi_lu_show_attr_indx( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_indx_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX); } -DEV_STAT_SCSI_LU_ATTR_RO(indx); -static ssize_t target_stat_scsi_lu_show_attr_lun( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_lun_show(struct config_item *item, char *page) { /* FIXME: scsiLuDefaultLun */ return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0); } -DEV_STAT_SCSI_LU_ATTR_RO(lun); -static ssize_t target_stat_scsi_lu_show_attr_lu_name( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_lu_name_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuWwnName */ return snprintf(page, PAGE_SIZE, "%s\n", (strlen(dev->t10_wwn.unit_serial)) ? dev->t10_wwn.unit_serial : "None"); } -DEV_STAT_SCSI_LU_ATTR_RO(lu_name); -static ssize_t target_stat_scsi_lu_show_attr_vend( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_vend_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); int i; char str[sizeof(dev->t10_wwn.vendor)+1]; @@ -322,30 +238,24 @@ static ssize_t target_stat_scsi_lu_show_attr_vend( str[i] = '\0'; return snprintf(page, PAGE_SIZE, "%s\n", str); } -DEV_STAT_SCSI_LU_ATTR_RO(vend); -static ssize_t target_stat_scsi_lu_show_attr_prod( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_prod_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); int i; char str[sizeof(dev->t10_wwn.model)+1]; /* scsiLuProductId */ - for (i = 0; i < sizeof(dev->t10_wwn.vendor); i++) + for (i = 0; i < sizeof(dev->t10_wwn.model); i++) str[i] = ISPRINT(dev->t10_wwn.model[i]) ? dev->t10_wwn.model[i] : ' '; str[i] = '\0'; return snprintf(page, PAGE_SIZE, "%s\n", str); } -DEV_STAT_SCSI_LU_ATTR_RO(prod); -static ssize_t target_stat_scsi_lu_show_attr_rev( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_rev_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); int i; char str[sizeof(dev->t10_wwn.revision)+1]; @@ -356,146 +266,137 @@ static ssize_t target_stat_scsi_lu_show_attr_rev( str[i] = '\0'; return snprintf(page, PAGE_SIZE, "%s\n", str); } -DEV_STAT_SCSI_LU_ATTR_RO(rev); -static ssize_t target_stat_scsi_lu_show_attr_dev_type( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_dev_type_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuPeripheralType */ return snprintf(page, PAGE_SIZE, "%u\n", dev->transport->get_device_type(dev)); } -DEV_STAT_SCSI_LU_ATTR_RO(dev_type); -static ssize_t target_stat_scsi_lu_show_attr_status( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_status_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuStatus */ return snprintf(page, PAGE_SIZE, "%s\n", (dev->export_count) ? "available" : "notavailable"); } -DEV_STAT_SCSI_LU_ATTR_RO(status); -static ssize_t target_stat_scsi_lu_show_attr_state_bit( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_state_bit_show(struct config_item *item, + char *page) { /* scsiLuState */ return snprintf(page, PAGE_SIZE, "exposed\n"); } -DEV_STAT_SCSI_LU_ATTR_RO(state_bit); -static ssize_t target_stat_scsi_lu_show_attr_num_cmds( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_num_cmds_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuNumCommands */ return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->num_cmds)); } -DEV_STAT_SCSI_LU_ATTR_RO(num_cmds); -static ssize_t target_stat_scsi_lu_show_attr_read_mbytes( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_read_mbytes_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuReadMegaBytes */ return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->read_bytes) >> 20); } -DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes); -static ssize_t target_stat_scsi_lu_show_attr_write_mbytes( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_write_mbytes_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuWrittenMegaBytes */ return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->write_bytes) >> 20); } -DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes); -static ssize_t target_stat_scsi_lu_show_attr_resets( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_resets_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuInResets */ - return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->num_resets)); + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->num_resets)); } -DEV_STAT_SCSI_LU_ATTR_RO(resets); -static ssize_t target_stat_scsi_lu_show_attr_full_stat( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_full_stat_show(struct config_item *item, + char *page) { /* FIXME: scsiLuOutTaskSetFullStatus */ return snprintf(page, PAGE_SIZE, "%u\n", 0); } -DEV_STAT_SCSI_LU_ATTR_RO(full_stat); -static ssize_t target_stat_scsi_lu_show_attr_hs_num_cmds( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_hs_num_cmds_show(struct config_item *item, + char *page) { /* FIXME: scsiLuHSInCommands */ return snprintf(page, PAGE_SIZE, "%u\n", 0); } -DEV_STAT_SCSI_LU_ATTR_RO(hs_num_cmds); -static ssize_t target_stat_scsi_lu_show_attr_creation_time( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_creation_time_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuCreationTime */ return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time - INITIAL_JIFFIES) * 100 / HZ)); } -DEV_STAT_SCSI_LU_ATTR_RO(creation_time); -CONFIGFS_EATTR_OPS(target_stat_scsi_lu, se_dev_stat_grps, scsi_lu_group); +CONFIGFS_ATTR_RO(target_stat_lu_, inst); +CONFIGFS_ATTR_RO(target_stat_lu_, dev); +CONFIGFS_ATTR_RO(target_stat_lu_, indx); +CONFIGFS_ATTR_RO(target_stat_lu_, lun); +CONFIGFS_ATTR_RO(target_stat_lu_, lu_name); +CONFIGFS_ATTR_RO(target_stat_lu_, vend); +CONFIGFS_ATTR_RO(target_stat_lu_, prod); +CONFIGFS_ATTR_RO(target_stat_lu_, rev); +CONFIGFS_ATTR_RO(target_stat_lu_, dev_type); +CONFIGFS_ATTR_RO(target_stat_lu_, status); +CONFIGFS_ATTR_RO(target_stat_lu_, state_bit); +CONFIGFS_ATTR_RO(target_stat_lu_, num_cmds); +CONFIGFS_ATTR_RO(target_stat_lu_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_lu_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_lu_, resets); +CONFIGFS_ATTR_RO(target_stat_lu_, full_stat); +CONFIGFS_ATTR_RO(target_stat_lu_, hs_num_cmds); +CONFIGFS_ATTR_RO(target_stat_lu_, creation_time); static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { - &target_stat_scsi_lu_inst.attr, - &target_stat_scsi_lu_dev.attr, - &target_stat_scsi_lu_indx.attr, - &target_stat_scsi_lu_lun.attr, - &target_stat_scsi_lu_lu_name.attr, - &target_stat_scsi_lu_vend.attr, - &target_stat_scsi_lu_prod.attr, - &target_stat_scsi_lu_rev.attr, - &target_stat_scsi_lu_dev_type.attr, - &target_stat_scsi_lu_status.attr, - &target_stat_scsi_lu_state_bit.attr, - &target_stat_scsi_lu_num_cmds.attr, - &target_stat_scsi_lu_read_mbytes.attr, - &target_stat_scsi_lu_write_mbytes.attr, - &target_stat_scsi_lu_resets.attr, - &target_stat_scsi_lu_full_stat.attr, - &target_stat_scsi_lu_hs_num_cmds.attr, - &target_stat_scsi_lu_creation_time.attr, + &target_stat_lu_attr_inst, + &target_stat_lu_attr_dev, + &target_stat_lu_attr_indx, + &target_stat_lu_attr_lun, + &target_stat_lu_attr_lu_name, + &target_stat_lu_attr_vend, + &target_stat_lu_attr_prod, + &target_stat_lu_attr_rev, + &target_stat_lu_attr_dev_type, + &target_stat_lu_attr_status, + &target_stat_lu_attr_state_bit, + &target_stat_lu_attr_num_cmds, + &target_stat_lu_attr_read_mbytes, + &target_stat_lu_attr_write_mbytes, + &target_stat_lu_attr_resets, + &target_stat_lu_attr_full_stat, + &target_stat_lu_attr_hs_num_cmds, + &target_stat_lu_attr_creation_time, NULL, }; -static struct configfs_item_operations target_stat_scsi_lu_attrib_ops = { - .show_attribute = target_stat_scsi_lu_attr_show, - .store_attribute = target_stat_scsi_lu_attr_store, -}; - static struct config_item_type target_stat_scsi_lu_cit = { - .ct_item_ops = &target_stat_scsi_lu_attrib_ops, .ct_attrs = target_stat_scsi_lu_attrs, .ct_owner = THIS_MODULE, }; @@ -525,142 +426,102 @@ void target_stat_setup_dev_default_groups(struct se_device *dev) * SCSI Port Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_port, se_port_stat_grps); -#define DEV_STAT_SCSI_PORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_port_attribute \ - target_stat_scsi_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_port_show_attr_##_name, \ - target_stat_scsi_port_store_attr_##_name); - -#define DEV_STAT_SCSI_PORT_ATTR_RO(_name) \ -static struct target_stat_scsi_port_attribute \ - target_stat_scsi_port_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_port_show_attr_##_name); - -static ssize_t target_stat_scsi_port_show_attr_inst( - struct se_port_stat_grps *pgrps, char *page) -{ - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - struct se_device *dev = lun->lun_se_dev; - struct se_hba *hba; - ssize_t ret; +static struct se_lun *to_stat_port(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_port_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - hba = dev->se_hba; - ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); - spin_unlock(&lun->lun_sep_lock); +static ssize_t target_stat_port_inst_show(struct config_item *item, char *page) +{ + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_port_show_attr_dev( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_dev_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - struct se_device *dev = lun->lun_se_dev; - ssize_t ret; + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(dev); -static ssize_t target_stat_scsi_port_show_attr_indx( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_indx_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_port_show_attr_role( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_role_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_device *dev = lun->lun_se_dev; - struct se_port *sep; - ssize_t ret; + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - if (!dev) - return -ENODEV; - - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(role); -static ssize_t target_stat_scsi_port_show_attr_busy_count( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_busy_count_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; + struct se_lun *lun = to_stat_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + /* FIXME: scsiPortBusyStatuses */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); } - /* FIXME: scsiPortBusyStatuses */ - ret = snprintf(page, PAGE_SIZE, "%u\n", 0); - spin_unlock(&lun->lun_sep_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(busy_count); -CONFIGFS_EATTR_OPS(target_stat_scsi_port, se_port_stat_grps, scsi_port_group); +CONFIGFS_ATTR_RO(target_stat_port_, inst); +CONFIGFS_ATTR_RO(target_stat_port_, dev); +CONFIGFS_ATTR_RO(target_stat_port_, indx); +CONFIGFS_ATTR_RO(target_stat_port_, role); +CONFIGFS_ATTR_RO(target_stat_port_, busy_count); static struct configfs_attribute *target_stat_scsi_port_attrs[] = { - &target_stat_scsi_port_inst.attr, - &target_stat_scsi_port_dev.attr, - &target_stat_scsi_port_indx.attr, - &target_stat_scsi_port_role.attr, - &target_stat_scsi_port_busy_count.attr, + &target_stat_port_attr_inst, + &target_stat_port_attr_dev, + &target_stat_port_attr_indx, + &target_stat_port_attr_role, + &target_stat_port_attr_busy_count, NULL, }; -static struct configfs_item_operations target_stat_scsi_port_attrib_ops = { - .show_attribute = target_stat_scsi_port_attr_show, - .store_attribute = target_stat_scsi_port_attr_store, -}; - static struct config_item_type target_stat_scsi_port_cit = { - .ct_item_ops = &target_stat_scsi_port_attrib_ops, .ct_attrs = target_stat_scsi_port_attrs, .ct_owner = THIS_MODULE, }; @@ -668,370 +529,285 @@ static struct config_item_type target_stat_scsi_port_cit = { /* * SCSI Target Port Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_port, se_port_stat_grps); -#define DEV_STAT_SCSI_TGT_PORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_tgt_port_attribute \ - target_stat_scsi_tgt_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_tgt_port_show_attr_##_name, \ - target_stat_scsi_tgt_port_store_attr_##_name); - -#define DEV_STAT_SCSI_TGT_PORT_ATTR_RO(_name) \ -static struct target_stat_scsi_tgt_port_attribute \ - target_stat_scsi_tgt_port_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_tgt_port_show_attr_##_name); - -static ssize_t target_stat_scsi_tgt_port_show_attr_inst( - struct se_port_stat_grps *pgrps, char *page) -{ - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_device *dev = lun->lun_se_dev; - struct se_port *sep; - struct se_hba *hba; - ssize_t ret; +static struct se_lun *to_stat_tgt_port(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_tgt_port_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - hba = dev->se_hba; - ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); - spin_unlock(&lun->lun_sep_lock); +static ssize_t target_stat_tgt_port_inst_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_tgt_port_show_attr_dev( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_dev_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_device *dev = lun->lun_se_dev; - struct se_port *sep; - ssize_t ret; + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev); -static ssize_t target_stat_scsi_tgt_port_show_attr_indx( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_indx_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_tgt_port_show_attr_name( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_name_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - struct se_portal_group *tpg; - ssize_t ret; + struct se_lun *lun = to_stat_tgt_port(item); + struct se_portal_group *tpg = lun->lun_tpg; + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - tpg = sep->sep_tpg; - - ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n", - tpg->se_tpg_tfo->get_fabric_name(), sep->sep_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n", + tpg->se_tpg_tfo->get_fabric_name(), + lun->lun_rtpi); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name); -static ssize_t target_stat_scsi_tgt_port_show_attr_port_index( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_port_index_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - struct se_portal_group *tpg; - ssize_t ret; - - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - tpg = sep->sep_tpg; + struct se_lun *lun = to_stat_tgt_port(item); + struct se_portal_group *tpg = lun->lun_tpg; + struct se_device *dev; + ssize_t ret = -ENODEV; - ret = snprintf(page, PAGE_SIZE, "%s%s%d\n", - tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+", - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%s%s%d\n", + tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+", + tpg->se_tpg_tfo->tpg_get_tag(tpg)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index); -static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_in_cmds_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; - - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&lun->lun_stats.cmd_pdus)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds); -static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_write_mbytes_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; - - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - ret = snprintf(page, PAGE_SIZE, "%u\n", - (u32)(sep->sep_stats.rx_data_octets >> 20)); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes); -static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_read_mbytes_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; - - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - ret = snprintf(page, PAGE_SIZE, "%u\n", - (u32)(sep->sep_stats.tx_data_octets >> 20)); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes); -static ssize_t target_stat_scsi_tgt_port_show_attr_hs_in_cmds( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_hs_in_cmds_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - ssize_t ret; + struct se_lun *lun = to_stat_tgt_port(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + /* FIXME: scsiTgtPortHsInCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); } - - /* FIXME: scsiTgtPortHsInCommands */ - ret = snprintf(page, PAGE_SIZE, "%u\n", 0); - spin_unlock(&lun->lun_sep_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds); -CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_port, se_port_stat_grps, - scsi_tgt_port_group); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, inst); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, dev); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, indx); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, name); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, port_index); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, in_cmds); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, hs_in_cmds); static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { - &target_stat_scsi_tgt_port_inst.attr, - &target_stat_scsi_tgt_port_dev.attr, - &target_stat_scsi_tgt_port_indx.attr, - &target_stat_scsi_tgt_port_name.attr, - &target_stat_scsi_tgt_port_port_index.attr, - &target_stat_scsi_tgt_port_in_cmds.attr, - &target_stat_scsi_tgt_port_write_mbytes.attr, - &target_stat_scsi_tgt_port_read_mbytes.attr, - &target_stat_scsi_tgt_port_hs_in_cmds.attr, + &target_stat_tgt_port_attr_inst, + &target_stat_tgt_port_attr_dev, + &target_stat_tgt_port_attr_indx, + &target_stat_tgt_port_attr_name, + &target_stat_tgt_port_attr_port_index, + &target_stat_tgt_port_attr_in_cmds, + &target_stat_tgt_port_attr_write_mbytes, + &target_stat_tgt_port_attr_read_mbytes, + &target_stat_tgt_port_attr_hs_in_cmds, NULL, }; -static struct configfs_item_operations target_stat_scsi_tgt_port_attrib_ops = { - .show_attribute = target_stat_scsi_tgt_port_attr_show, - .store_attribute = target_stat_scsi_tgt_port_attr_store, -}; - static struct config_item_type target_stat_scsi_tgt_port_cit = { - .ct_item_ops = &target_stat_scsi_tgt_port_attrib_ops, .ct_attrs = target_stat_scsi_tgt_port_attrs, .ct_owner = THIS_MODULE, }; /* * SCSI Transport Table -o */ - -CONFIGFS_EATTR_STRUCT(target_stat_scsi_transport, se_port_stat_grps); -#define DEV_STAT_SCSI_TRANSPORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_transport_attribute \ - target_stat_scsi_transport_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_transport_show_attr_##_name, \ - target_stat_scsi_transport_store_attr_##_name); - -#define DEV_STAT_SCSI_TRANSPORT_ATTR_RO(_name) \ -static struct target_stat_scsi_transport_attribute \ - target_stat_scsi_transport_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_transport_show_attr_##_name); - -static ssize_t target_stat_scsi_transport_show_attr_inst( - struct se_port_stat_grps *pgrps, char *page) -{ - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_device *dev = lun->lun_se_dev; - struct se_port *sep; - struct se_hba *hba; - ssize_t ret; + */ +static struct se_lun *to_transport_stat(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_transport_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } +static ssize_t target_stat_transport_inst_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + ssize_t ret = -ENODEV; - hba = dev->se_hba; - ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_transport_show_attr_device( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_transport_device_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - struct se_portal_group *tpg; - ssize_t ret; + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + /* scsiTransportType */ + ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n", + tpg->se_tpg_tfo->get_fabric_name()); } - tpg = sep->sep_tpg; - /* scsiTransportType */ - ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n", - tpg->se_tpg_tfo->get_fabric_name()); - spin_unlock(&lun->lun_sep_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device); -static ssize_t target_stat_scsi_transport_show_attr_indx( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_transport_indx_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_port *sep; - struct se_portal_group *tpg; - ssize_t ret; + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; + ssize_t ret = -ENODEV; - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; - } - tpg = sep->sep_tpg; - ret = snprintf(page, PAGE_SIZE, "%u\n", - tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); - spin_unlock(&lun->lun_sep_lock); + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) + ret = snprintf(page, PAGE_SIZE, "%u\n", + tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_transport_show_attr_dev_name( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_transport_dev_name_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); - struct se_device *dev = lun->lun_se_dev; - struct se_port *sep; - struct se_portal_group *tpg; + struct se_lun *lun = to_transport_stat(item); + struct se_device *dev; + struct se_portal_group *tpg = lun->lun_tpg; struct t10_wwn *wwn; - ssize_t ret; - - spin_lock(&lun->lun_sep_lock); - sep = lun->lun_sep; - if (!sep) { - spin_unlock(&lun->lun_sep_lock); - return -ENODEV; + ssize_t ret = -ENODEV; + + rcu_read_lock(); + dev = rcu_dereference(lun->lun_se_dev); + if (dev) { + wwn = &dev->t10_wwn; + /* scsiTransportDevName */ + ret = snprintf(page, PAGE_SIZE, "%s+%s\n", + tpg->se_tpg_tfo->tpg_get_wwn(tpg), + (strlen(wwn->unit_serial)) ? wwn->unit_serial : + wwn->vendor); } - tpg = sep->sep_tpg; - wwn = &dev->t10_wwn; - /* scsiTransportDevName */ - ret = snprintf(page, PAGE_SIZE, "%s+%s\n", - tpg->se_tpg_tfo->tpg_get_wwn(tpg), - (strlen(wwn->unit_serial)) ? wwn->unit_serial : - wwn->vendor); - spin_unlock(&lun->lun_sep_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name); -CONFIGFS_EATTR_OPS(target_stat_scsi_transport, se_port_stat_grps, - scsi_transport_group); +CONFIGFS_ATTR_RO(target_stat_transport_, inst); +CONFIGFS_ATTR_RO(target_stat_transport_, device); +CONFIGFS_ATTR_RO(target_stat_transport_, indx); +CONFIGFS_ATTR_RO(target_stat_transport_, dev_name); static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { - &target_stat_scsi_transport_inst.attr, - &target_stat_scsi_transport_device.attr, - &target_stat_scsi_transport_indx.attr, - &target_stat_scsi_transport_dev_name.attr, + &target_stat_transport_attr_inst, + &target_stat_transport_attr_device, + &target_stat_transport_attr_indx, + &target_stat_transport_attr_dev_name, NULL, }; -static struct configfs_item_operations target_stat_scsi_transport_attrib_ops = { - .show_attribute = target_stat_scsi_transport_attr_show, - .store_attribute = target_stat_scsi_transport_attr_store, -}; - static struct config_item_type target_stat_scsi_transport_cit = { - .ct_item_ops = &target_stat_scsi_transport_attrib_ops, .ct_attrs = target_stat_scsi_transport_attrs, .ct_owner = THIS_MODULE, }; @@ -1061,364 +837,338 @@ void target_stat_setup_port_default_groups(struct se_lun *lun) * SCSI Authorized Initiator Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_auth_intr, se_ml_stat_grps); -#define DEV_STAT_SCSI_AUTH_INTR_ATTR(_name, _mode) \ -static struct target_stat_scsi_auth_intr_attribute \ - target_stat_scsi_auth_intr_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_auth_intr_show_attr_##_name, \ - target_stat_scsi_auth_intr_store_attr_##_name); - -#define DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(_name) \ -static struct target_stat_scsi_auth_intr_attribute \ - target_stat_scsi_auth_intr_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_auth_intr_show_attr_##_name); - -static ssize_t target_stat_scsi_auth_intr_show_attr_inst( - struct se_ml_stat_grps *lgrps, char *page) -{ - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); +static struct se_lun_acl *auth_to_lacl(struct config_item *item) +{ + struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), + struct se_ml_stat_grps, scsi_auth_intr_group); + return container_of(lgrps, struct se_lun_acl, ml_stat_grps); +} + +static ssize_t target_stat_auth_inst_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } tpg = nacl->se_tpg; /* scsiInstIndex */ ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst); -static ssize_t target_stat_scsi_auth_intr_show_attr_dev( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_dev_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_lun *lun; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } - lun = deve->se_lun; + lun = rcu_dereference(deve->se_lun); /* scsiDeviceIndex */ - ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index); - spin_unlock_irq(&nacl->device_list_lock); + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev); -static ssize_t target_stat_scsi_auth_intr_show_attr_port( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_port_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } tpg = nacl->se_tpg; /* scsiAuthIntrTgtPortIndex */ ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port); -static ssize_t target_stat_scsi_auth_intr_show_attr_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrIndex */ ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx); -static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_dev_or_port_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrDevOrPort */ ret = snprintf(page, PAGE_SIZE, "%u\n", 1); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port); -static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_intr_name_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrName */ ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name); -static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_map_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* FIXME: scsiAuthIntrLunMapIndex */ ret = snprintf(page, PAGE_SIZE, "%u\n", 0); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx); -static ssize_t target_stat_scsi_auth_intr_show_attr_att_count( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_att_count_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrAttachedTimes */ ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count); -static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_num_cmds_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrOutCommands */ - ret = snprintf(page, PAGE_SIZE, "%u\n", deve->total_cmds); - spin_unlock_irq(&nacl->device_list_lock); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&deve->total_cmds)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds); -static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_read_mbytes_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrReadMegaBytes */ - ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->read_bytes >> 20)); - spin_unlock_irq(&nacl->device_list_lock); + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&deve->read_bytes) >> 20)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes); -static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_write_mbytes_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrWrittenMegaBytes */ - ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->write_bytes >> 20)); - spin_unlock_irq(&nacl->device_list_lock); + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(atomic_long_read(&deve->write_bytes) >> 20)); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes); -static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_hs_num_cmds_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* FIXME: scsiAuthIntrHSOutCommands */ ret = snprintf(page, PAGE_SIZE, "%u\n", 0); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds); -static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_creation_time_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAuthIntrLastCreation */ ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time - INITIAL_JIFFIES) * 100 / HZ)); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time); -static ssize_t target_stat_scsi_auth_intr_show_attr_row_status( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_row_status_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* FIXME: scsiAuthIntrRowStatus */ ret = snprintf(page, PAGE_SIZE, "Ready\n"); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status); -CONFIGFS_EATTR_OPS(target_stat_scsi_auth_intr, se_ml_stat_grps, - scsi_auth_intr_group); +CONFIGFS_ATTR_RO(target_stat_auth_, inst); +CONFIGFS_ATTR_RO(target_stat_auth_, dev); +CONFIGFS_ATTR_RO(target_stat_auth_, port); +CONFIGFS_ATTR_RO(target_stat_auth_, indx); +CONFIGFS_ATTR_RO(target_stat_auth_, dev_or_port); +CONFIGFS_ATTR_RO(target_stat_auth_, intr_name); +CONFIGFS_ATTR_RO(target_stat_auth_, map_indx); +CONFIGFS_ATTR_RO(target_stat_auth_, att_count); +CONFIGFS_ATTR_RO(target_stat_auth_, num_cmds); +CONFIGFS_ATTR_RO(target_stat_auth_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_auth_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_auth_, hs_num_cmds); +CONFIGFS_ATTR_RO(target_stat_auth_, creation_time); +CONFIGFS_ATTR_RO(target_stat_auth_, row_status); static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { - &target_stat_scsi_auth_intr_inst.attr, - &target_stat_scsi_auth_intr_dev.attr, - &target_stat_scsi_auth_intr_port.attr, - &target_stat_scsi_auth_intr_indx.attr, - &target_stat_scsi_auth_intr_dev_or_port.attr, - &target_stat_scsi_auth_intr_intr_name.attr, - &target_stat_scsi_auth_intr_map_indx.attr, - &target_stat_scsi_auth_intr_att_count.attr, - &target_stat_scsi_auth_intr_num_cmds.attr, - &target_stat_scsi_auth_intr_read_mbytes.attr, - &target_stat_scsi_auth_intr_write_mbytes.attr, - &target_stat_scsi_auth_intr_hs_num_cmds.attr, - &target_stat_scsi_auth_intr_creation_time.attr, - &target_stat_scsi_auth_intr_row_status.attr, + &target_stat_auth_attr_inst, + &target_stat_auth_attr_dev, + &target_stat_auth_attr_port, + &target_stat_auth_attr_indx, + &target_stat_auth_attr_dev_or_port, + &target_stat_auth_attr_intr_name, + &target_stat_auth_attr_map_indx, + &target_stat_auth_attr_att_count, + &target_stat_auth_attr_num_cmds, + &target_stat_auth_attr_read_mbytes, + &target_stat_auth_attr_write_mbytes, + &target_stat_auth_attr_hs_num_cmds, + &target_stat_auth_attr_creation_time, + &target_stat_auth_attr_row_status, NULL, }; -static struct configfs_item_operations target_stat_scsi_auth_intr_attrib_ops = { - .show_attribute = target_stat_scsi_auth_intr_attr_show, - .store_attribute = target_stat_scsi_auth_intr_attr_store, -}; - static struct config_item_type target_stat_scsi_auth_intr_cit = { - .ct_item_ops = &target_stat_scsi_auth_intr_attrib_ops, .ct_attrs = target_stat_scsi_auth_intr_attrs, .ct_owner = THIS_MODULE, }; @@ -1427,98 +1177,84 @@ static struct config_item_type target_stat_scsi_auth_intr_cit = { * SCSI Attached Initiator Port Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_att_intr_port, se_ml_stat_grps); -#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_att_intr_port_attribute \ - target_stat_scsi_att_intr_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_att_intr_port_show_attr_##_name, \ - target_stat_scsi_att_intr_port_store_attr_##_name); - -#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(_name) \ -static struct target_stat_scsi_att_intr_port_attribute \ - target_stat_scsi_att_intr_port_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_att_intr_port_show_attr_##_name); - -static ssize_t target_stat_scsi_att_intr_port_show_attr_inst( - struct se_ml_stat_grps *lgrps, char *page) -{ - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); +static struct se_lun_acl *iport_to_lacl(struct config_item *item) +{ + struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), + struct se_ml_stat_grps, scsi_att_intr_port_group); + return container_of(lgrps, struct se_lun_acl, ml_stat_grps); +} + +static ssize_t target_stat_iport_inst_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } tpg = nacl->se_tpg; /* scsiInstIndex */ ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_inst_index(tpg)); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_att_intr_port_show_attr_dev( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_dev_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_lun *lun; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } - lun = deve->se_lun; + lun = rcu_dereference(deve->se_lun); /* scsiDeviceIndex */ - ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index); - spin_unlock_irq(&nacl->device_list_lock); + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev); -static ssize_t target_stat_scsi_att_intr_port_show_attr_port( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_port_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } tpg = nacl->se_tpg; /* scsiPortIndex */ ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port); -static ssize_t target_stat_scsi_att_intr_port_show_attr_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_session *se_sess; struct se_portal_group *tpg; @@ -1538,35 +1274,31 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_indx( spin_unlock_irq(&nacl->nacl_sess_lock); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_port_auth_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[lacl->mapped_lun]; - if (!deve->se_lun || !deve->se_lun_acl) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, lacl->mapped_lun); + if (!deve) { + rcu_read_unlock(); return -ENODEV; } /* scsiAttIntrPortAuthIntrIdx */ ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx); -static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_port_ident_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_session *se_sess; struct se_portal_group *tpg; @@ -1590,28 +1322,25 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident( spin_unlock_irq(&nacl->nacl_sess_lock); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_ident); -CONFIGFS_EATTR_OPS(target_stat_scsi_att_intr_port, se_ml_stat_grps, - scsi_att_intr_port_group); +CONFIGFS_ATTR_RO(target_stat_iport_, inst); +CONFIGFS_ATTR_RO(target_stat_iport_, dev); +CONFIGFS_ATTR_RO(target_stat_iport_, port); +CONFIGFS_ATTR_RO(target_stat_iport_, indx); +CONFIGFS_ATTR_RO(target_stat_iport_, port_auth_indx); +CONFIGFS_ATTR_RO(target_stat_iport_, port_ident); static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { - &target_stat_scsi_att_intr_port_inst.attr, - &target_stat_scsi_att_intr_port_dev.attr, - &target_stat_scsi_att_intr_port_port.attr, - &target_stat_scsi_att_intr_port_indx.attr, - &target_stat_scsi_att_intr_port_port_auth_indx.attr, - &target_stat_scsi_att_intr_port_port_ident.attr, + &target_stat_iport_attr_inst, + &target_stat_iport_attr_dev, + &target_stat_iport_attr_port, + &target_stat_iport_attr_indx, + &target_stat_iport_attr_port_auth_indx, + &target_stat_iport_attr_port_ident, NULL, }; -static struct configfs_item_operations target_stat_scsi_att_intr_port_attrib_ops = { - .show_attribute = target_stat_scsi_att_intr_port_attr_show, - .store_attribute = target_stat_scsi_att_intr_port_attr_store, -}; - static struct config_item_type target_stat_scsi_att_intr_port_cit = { - .ct_item_ops = &target_stat_scsi_att_intr_port_attrib_ops, .ct_attrs = target_stat_scsi_ath_intr_port_attrs, .ct_owner = THIS_MODULE, }; diff --git a/kernel/drivers/target/target_core_tmr.c b/kernel/drivers/target/target_core_tmr.c index 315ec3458..46b1991fb 100644 --- a/kernel/drivers/target/target_core_tmr.c +++ b/kernel/drivers/target/target_core_tmr.c @@ -27,13 +27,10 @@ #include <linux/spinlock.h> #include <linux/list.h> #include <linux/export.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_alua.h" @@ -71,23 +68,25 @@ void core_tmr_release_req(struct se_tmr_req *tmr) if (dev) { spin_lock_irqsave(&dev->se_tmr_lock, flags); - list_del(&tmr->tmr_list); + list_del_init(&tmr->tmr_list); spin_unlock_irqrestore(&dev->se_tmr_lock, flags); } kfree(tmr); } -static void core_tmr_handle_tas_abort( - struct se_node_acl *tmr_nacl, - struct se_cmd *cmd, - int tas) +static void core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas) { - bool remove = true; + unsigned long flags; + bool remove = true, send_tas; /* * TASK ABORTED status (TAS) bit support */ - if ((tmr_nacl && (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) { + spin_lock_irqsave(&cmd->t_state_lock, flags); + send_tas = (cmd->transport_state & CMD_T_TAS); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + + if (send_tas) { remove = false; transport_send_task_abort(cmd); } @@ -110,6 +109,46 @@ static int target_check_cdb_and_preempt(struct list_head *list, return 1; } +static bool __target_check_io_state(struct se_cmd *se_cmd, + struct se_session *tmr_sess, int tas) +{ + struct se_session *sess = se_cmd->se_sess; + + assert_spin_locked(&sess->sess_cmd_lock); + WARN_ON_ONCE(!irqs_disabled()); + /* + * If command already reached CMD_T_COMPLETE state within + * target_complete_cmd() or CMD_T_FABRIC_STOP due to shutdown, + * this se_cmd has been passed to fabric driver and will + * not be aborted. + * + * Otherwise, obtain a local se_cmd->cmd_kref now for TMR + * ABORT_TASK + LUN_RESET for CMD_T_ABORTED processing as + * long as se_cmd->cmd_kref is still active unless zero. + */ + spin_lock(&se_cmd->t_state_lock); + if (se_cmd->transport_state & (CMD_T_COMPLETE | CMD_T_FABRIC_STOP)) { + pr_debug("Attempted to abort io tag: %llu already complete or" + " fabric stop, skipping\n", se_cmd->tag); + spin_unlock(&se_cmd->t_state_lock); + return false; + } + if (sess->sess_tearing_down || se_cmd->cmd_wait_set) { + pr_debug("Attempted to abort io tag: %llu already shutdown," + " skipping\n", se_cmd->tag); + spin_unlock(&se_cmd->t_state_lock); + return false; + } + se_cmd->transport_state |= CMD_T_ABORTED; + + if ((tmr_sess != se_cmd->se_sess) && tas) + se_cmd->transport_state |= CMD_T_TAS; + + spin_unlock(&se_cmd->t_state_lock); + + return kref_get_unless_zero(&se_cmd->cmd_kref); +} + void core_tmr_abort_task( struct se_device *dev, struct se_tmr_req *tmr, @@ -117,7 +156,7 @@ void core_tmr_abort_task( { struct se_cmd *se_cmd; unsigned long flags; - int ref_tag; + u64 ref_tag; spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) { @@ -129,42 +168,35 @@ void core_tmr_abort_task( if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) continue; - ref_tag = se_cmd->se_tfo->get_task_tag(se_cmd); + ref_tag = se_cmd->tag; if (tmr->ref_task_tag != ref_tag) continue; - printk("ABORT_TASK: Found referenced %s task_tag: %u\n", + printk("ABORT_TASK: Found referenced %s task_tag: %llu\n", se_cmd->se_tfo->get_fabric_name(), ref_tag); - spin_lock(&se_cmd->t_state_lock); - if (se_cmd->transport_state & CMD_T_COMPLETE) { - printk("ABORT_TASK: ref_tag: %u already complete, skipping\n", ref_tag); - spin_unlock(&se_cmd->t_state_lock); + if (!__target_check_io_state(se_cmd, se_sess, 0)) { spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); goto out; } - se_cmd->transport_state |= CMD_T_ABORTED; - spin_unlock(&se_cmd->t_state_lock); - list_del_init(&se_cmd->se_cmd_list); - kref_get(&se_cmd->cmd_kref); spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); cancel_work_sync(&se_cmd->work); transport_wait_for_tasks(se_cmd); - target_put_sess_cmd(se_sess, se_cmd); transport_cmd_finish_abort(se_cmd, true); + target_put_sess_cmd(se_cmd); printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for" - " ref_tag: %d\n", ref_tag); + " ref_tag: %llu\n", ref_tag); tmr->response = TMR_FUNCTION_COMPLETE; return; } spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); out: - printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %d\n", + printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %lld\n", tmr->ref_task_tag); tmr->response = TMR_TASK_DOES_NOT_EXIST; } @@ -175,9 +207,11 @@ static void core_tmr_drain_tmr_list( struct list_head *preempt_and_abort_list) { LIST_HEAD(drain_tmr_list); + struct se_session *sess; struct se_tmr_req *tmr_p, *tmr_pp; struct se_cmd *cmd; unsigned long flags; + bool rc; /* * Release all pending and outgoing TMRs aside from the received * LUN_RESET tmr.. @@ -203,17 +237,39 @@ static void core_tmr_drain_tmr_list( if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd)) continue; + sess = cmd->se_sess; + if (WARN_ON_ONCE(!sess)) + continue; + + spin_lock(&sess->sess_cmd_lock); spin_lock(&cmd->t_state_lock); - if (!(cmd->transport_state & CMD_T_ACTIVE)) { + if (!(cmd->transport_state & CMD_T_ACTIVE) || + (cmd->transport_state & CMD_T_FABRIC_STOP)) { spin_unlock(&cmd->t_state_lock); + spin_unlock(&sess->sess_cmd_lock); continue; } if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) { spin_unlock(&cmd->t_state_lock); + spin_unlock(&sess->sess_cmd_lock); + continue; + } + if (sess->sess_tearing_down || cmd->cmd_wait_set) { + spin_unlock(&cmd->t_state_lock); + spin_unlock(&sess->sess_cmd_lock); continue; } + cmd->transport_state |= CMD_T_ABORTED; spin_unlock(&cmd->t_state_lock); + rc = kref_get_unless_zero(&cmd->cmd_kref); + if (!rc) { + printk("LUN_RESET TMR: non-zero kref_get_unless_zero\n"); + spin_unlock(&sess->sess_cmd_lock); + continue; + } + spin_unlock(&sess->sess_cmd_lock); + list_move_tail(&tmr_p->tmr_list, &drain_tmr_list); } spin_unlock_irqrestore(&dev->se_tmr_lock, flags); @@ -227,20 +283,26 @@ static void core_tmr_drain_tmr_list( (preempt_and_abort_list) ? "Preempt" : "", tmr_p, tmr_p->function, tmr_p->response, cmd->t_state); + cancel_work_sync(&cmd->work); + transport_wait_for_tasks(cmd); + transport_cmd_finish_abort(cmd, 1); + target_put_sess_cmd(cmd); } } static void core_tmr_drain_state_list( struct se_device *dev, struct se_cmd *prout_cmd, - struct se_node_acl *tmr_nacl, + struct se_session *tmr_sess, int tas, struct list_head *preempt_and_abort_list) { LIST_HEAD(drain_task_list); + struct se_session *sess; struct se_cmd *cmd, *next; unsigned long flags; + int rc; /* * Complete outstanding commands with TASK_ABORTED SAM status. @@ -279,6 +341,16 @@ static void core_tmr_drain_state_list( if (prout_cmd == cmd) continue; + sess = cmd->se_sess; + if (WARN_ON_ONCE(!sess)) + continue; + + spin_lock(&sess->sess_cmd_lock); + rc = __target_check_io_state(cmd, tmr_sess, tas); + spin_unlock(&sess->sess_cmd_lock); + if (!rc) + continue; + list_move_tail(&cmd->state_list, &drain_task_list); cmd->state_active = false; } @@ -286,19 +358,19 @@ static void core_tmr_drain_state_list( while (!list_empty(&drain_task_list)) { cmd = list_entry(drain_task_list.next, struct se_cmd, state_list); - list_del(&cmd->state_list); + list_del_init(&cmd->state_list); pr_debug("LUN_RESET: %s cmd: %p" - " ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state: %d" + " ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d" "cdb: 0x%02x\n", (preempt_and_abort_list) ? "Preempt" : "", cmd, - cmd->se_tfo->get_task_tag(cmd), 0, + cmd->tag, 0, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state, cmd->t_task_cdb[0]); - pr_debug("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx" + pr_debug("LUN_RESET: ITT[0x%08llx] - pr_res_key: 0x%016Lx" " -- CMD_T_ACTIVE: %d" " CMD_T_STOP: %d CMD_T_SENT: %d\n", - cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key, + cmd->tag, cmd->pr_res_key, (cmd->transport_state & CMD_T_ACTIVE) != 0, (cmd->transport_state & CMD_T_STOP) != 0, (cmd->transport_state & CMD_T_SENT) != 0); @@ -310,16 +382,11 @@ static void core_tmr_drain_state_list( * loop above, but we do it down here given that * cancel_work_sync may block. */ - if (cmd->t_state == TRANSPORT_COMPLETE) - cancel_work_sync(&cmd->work); - - spin_lock_irqsave(&cmd->t_state_lock, flags); - target_stop_cmd(cmd, &flags); - - cmd->transport_state |= CMD_T_ABORTED; - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + cancel_work_sync(&cmd->work); + transport_wait_for_tasks(cmd); - core_tmr_handle_tas_abort(tmr_nacl, cmd, tas); + core_tmr_handle_tas_abort(cmd, tas); + target_put_sess_cmd(cmd); } } @@ -331,6 +398,7 @@ int core_tmr_lun_reset( { struct se_node_acl *tmr_nacl = NULL; struct se_portal_group *tmr_tpg = NULL; + struct se_session *tmr_sess = NULL; int tas; /* * TASK_ABORTED status bit, this is configurable via ConfigFS @@ -349,8 +417,9 @@ int core_tmr_lun_reset( * or struct se_device passthrough.. */ if (tmr && tmr->task_cmd && tmr->task_cmd->se_sess) { - tmr_nacl = tmr->task_cmd->se_sess->se_node_acl; - tmr_tpg = tmr->task_cmd->se_sess->se_tpg; + tmr_sess = tmr->task_cmd->se_sess; + tmr_nacl = tmr_sess->se_node_acl; + tmr_tpg = tmr_sess->se_tpg; if (tmr_nacl && tmr_tpg) { pr_debug("LUN_RESET: TMR caller fabric: %s" " initiator port %s\n", @@ -363,7 +432,7 @@ int core_tmr_lun_reset( dev->transport->name, tas); core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); - core_tmr_drain_state_list(dev, prout_cmd, tmr_nacl, tas, + core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, preempt_and_abort_list); /* diff --git a/kernel/drivers/target/target_core_tpg.c b/kernel/drivers/target/target_core_tpg.c index 47f064415..5fb9dd7f0 100644 --- a/kernel/drivers/target/target_core_tpg.c +++ b/kernel/drivers/target/target_core_tpg.c @@ -32,60 +32,25 @@ #include <linux/export.h> #include <net/sock.h> #include <net/tcp.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> #include "target_core_internal.h" +#include "target_core_alua.h" #include "target_core_pr.h" +#include "target_core_ua.h" extern struct se_device *g_lun0_dev; static DEFINE_SPINLOCK(tpg_lock); static LIST_HEAD(tpg_list); -/* core_clear_initiator_node_from_tpg(): - * - * - */ -static void core_clear_initiator_node_from_tpg( - struct se_node_acl *nacl, - struct se_portal_group *tpg) -{ - int i; - struct se_dev_entry *deve; - struct se_lun *lun; - - spin_lock_irq(&nacl->device_list_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - deve = nacl->device_list[i]; - - if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)) - continue; - - if (!deve->se_lun) { - pr_err("%s device entries device pointer is" - " NULL, but Initiator has access.\n", - tpg->se_tpg_tfo->get_fabric_name()); - continue; - } - - lun = deve->se_lun; - spin_unlock_irq(&nacl->device_list_lock); - core_disable_device_list_for_node(lun, NULL, deve->mapped_lun, - TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg); - - spin_lock_irq(&nacl->device_list_lock); - } - spin_unlock_irq(&nacl->device_list_lock); -} - /* __core_tpg_get_initiator_node_acl(): * - * spin_lock_bh(&tpg->acl_node_lock); must be held when calling + * mutex_lock(&tpg->acl_node_mutex); must be held when calling */ struct se_node_acl *__core_tpg_get_initiator_node_acl( struct se_portal_group *tpg, @@ -111,36 +76,50 @@ struct se_node_acl *core_tpg_get_initiator_node_acl( { struct se_node_acl *acl; - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname); - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); return acl; } EXPORT_SYMBOL(core_tpg_get_initiator_node_acl); +void core_allocate_nexus_loss_ua( + struct se_node_acl *nacl) +{ + struct se_dev_entry *deve; + + if (!nacl) + return; + + rcu_read_lock(); + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) + core_scsi3_ua_allocate(deve, 0x29, + ASCQ_29H_NEXUS_LOSS_OCCURRED); + rcu_read_unlock(); +} +EXPORT_SYMBOL(core_allocate_nexus_loss_ua); + /* core_tpg_add_node_to_devs(): * * */ void core_tpg_add_node_to_devs( struct se_node_acl *acl, - struct se_portal_group *tpg) + struct se_portal_group *tpg, + struct se_lun *lun_orig) { - int i = 0; u32 lun_access = 0; struct se_lun *lun; struct se_device *dev; - spin_lock(&tpg->tpg_lun_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - lun = tpg->tpg_lun_list[i]; - if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) + mutex_lock(&tpg->tpg_lun_mutex); + hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link) { + if (lun_orig && lun != lun_orig) continue; - spin_unlock(&tpg->tpg_lun_lock); - - dev = lun->lun_se_dev; + dev = rcu_dereference_check(lun->lun_se_dev, + lockdep_is_held(&tpg->tpg_lun_mutex)); /* * By default in LIO-Target $FABRIC_MOD, * demo_mode_write_protect is ON, or READ_ONLY; @@ -158,7 +137,7 @@ void core_tpg_add_node_to_devs( lun_access = TRANSPORT_LUNFLAGS_READ_WRITE; } - pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%u] - Adding %s" + pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%llu] - Adding %s" " access for LUN in Demo Mode\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, @@ -166,7 +145,7 @@ void core_tpg_add_node_to_devs( "READ-WRITE" : "READ-ONLY"); core_enable_device_list_for_node(lun, NULL, lun->unpacked_lun, - lun_access, acl, tpg); + lun_access, acl, tpg); /* * Check to see if there are any existing persistent reservation * APTPL pre-registrations that need to be enabled for this dynamic @@ -174,9 +153,8 @@ void core_tpg_add_node_to_devs( */ core_scsi3_check_aptpl_registration(dev, tpg, lun, acl, lun->unpacked_lun); - spin_lock(&tpg->tpg_lun_lock); } - spin_unlock(&tpg->tpg_lun_lock); + mutex_unlock(&tpg->tpg_lun_mutex); } /* core_set_queue_depth_for_node(): @@ -197,67 +175,63 @@ static int core_set_queue_depth_for_node( return 0; } -void array_free(void *array, int n) +static struct se_node_acl *target_alloc_node_acl(struct se_portal_group *tpg, + const unsigned char *initiatorname) { - void **a = array; - int i; + struct se_node_acl *acl; - for (i = 0; i < n; i++) - kfree(a[i]); - kfree(a); -} + acl = kzalloc(max(sizeof(*acl), tpg->se_tpg_tfo->node_acl_size), + GFP_KERNEL); + if (!acl) + return NULL; -static void *array_zalloc(int n, size_t size, gfp_t flags) -{ - void **a; - int i; + INIT_LIST_HEAD(&acl->acl_list); + INIT_LIST_HEAD(&acl->acl_sess_list); + INIT_HLIST_HEAD(&acl->lun_entry_hlist); + kref_init(&acl->acl_kref); + init_completion(&acl->acl_free_comp); + spin_lock_init(&acl->nacl_sess_lock); + mutex_init(&acl->lun_entry_mutex); + atomic_set(&acl->acl_pr_ref_count, 0); + if (tpg->se_tpg_tfo->tpg_get_default_depth) + acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg); + else + acl->queue_depth = 1; + snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); + acl->se_tpg = tpg; + acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX); - a = kzalloc(n * sizeof(void*), flags); - if (!a) - return NULL; - for (i = 0; i < n; i++) { - a[i] = kzalloc(size, flags); - if (!a[i]) { - array_free(a, n); - return NULL; - } - } - return a; + tpg->se_tpg_tfo->set_default_node_attributes(acl); + + if (core_set_queue_depth_for_node(tpg, acl) < 0) + goto out_free_acl; + + return acl; + +out_free_acl: + kfree(acl); + return NULL; } -/* core_create_device_list_for_node(): - * - * - */ -static int core_create_device_list_for_node(struct se_node_acl *nacl) +static void target_add_node_acl(struct se_node_acl *acl) { - struct se_dev_entry *deve; - int i; - - nacl->device_list = array_zalloc(TRANSPORT_MAX_LUNS_PER_TPG, - sizeof(struct se_dev_entry), GFP_KERNEL); - if (!nacl->device_list) { - pr_err("Unable to allocate memory for" - " struct se_node_acl->device_list\n"); - return -ENOMEM; - } - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - deve = nacl->device_list[i]; - - atomic_set(&deve->ua_count, 0); - atomic_set(&deve->pr_ref_count, 0); - spin_lock_init(&deve->ua_lock); - INIT_LIST_HEAD(&deve->alua_port_list); - INIT_LIST_HEAD(&deve->ua_list); - } + struct se_portal_group *tpg = acl->se_tpg; - return 0; + mutex_lock(&tpg->acl_node_mutex); + list_add_tail(&acl->acl_list, &tpg->acl_node_list); + tpg->num_node_acls++; + mutex_unlock(&tpg->acl_node_mutex); + + pr_debug("%s_TPG[%hu] - Added %s ACL with TCQ Depth: %d for %s" + " Initiator Node: %s\n", + tpg->se_tpg_tfo->get_fabric_name(), + tpg->se_tpg_tfo->tpg_get_tag(tpg), + acl->dynamic_node_acl ? "DYNAMIC" : "", + acl->queue_depth, + tpg->se_tpg_tfo->get_fabric_name(), + acl->initiatorname); } -/* core_tpg_check_initiator_node_acl() - * - * - */ struct se_node_acl *core_tpg_check_initiator_node_acl( struct se_portal_group *tpg, unsigned char *initiatorname) @@ -271,35 +245,11 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( if (!tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) return NULL; - acl = tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg); + acl = target_alloc_node_acl(tpg, initiatorname); if (!acl) return NULL; - - INIT_LIST_HEAD(&acl->acl_list); - INIT_LIST_HEAD(&acl->acl_sess_list); - kref_init(&acl->acl_kref); - init_completion(&acl->acl_free_comp); - spin_lock_init(&acl->device_list_lock); - spin_lock_init(&acl->nacl_sess_lock); - atomic_set(&acl->acl_pr_ref_count, 0); - acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg); - snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); - acl->se_tpg = tpg; - acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX); acl->dynamic_node_acl = 1; - tpg->se_tpg_tfo->set_default_node_attributes(acl); - - if (core_create_device_list_for_node(acl) < 0) { - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); - return NULL; - } - - if (core_set_queue_depth_for_node(tpg, acl) < 0) { - core_free_device_list_for_node(acl, tpg); - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); - return NULL; - } /* * Here we only create demo-mode MappedLUNs from the active * TPG LUNs if the fabric is not explicitly asking for @@ -307,18 +257,9 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( */ if ((tpg->se_tpg_tfo->tpg_check_demo_mode_login_only == NULL) || (tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg) != 1)) - core_tpg_add_node_to_devs(acl, tpg); - - spin_lock_irq(&tpg->acl_node_lock); - list_add_tail(&acl->acl_list, &tpg->acl_node_list); - tpg->num_node_acls++; - spin_unlock_irq(&tpg->acl_node_lock); - - pr_debug("%s_TPG[%u] - Added DYNAMIC ACL with TCQ Depth: %d for %s" - " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(), - tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth, - tpg->se_tpg_tfo->get_fabric_name(), initiatorname); + core_tpg_add_node_to_devs(acl, tpg, NULL); + target_add_node_acl(acl); return acl; } EXPORT_SYMBOL(core_tpg_check_initiator_node_acl); @@ -329,40 +270,13 @@ void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *nacl) cpu_relax(); } -void core_tpg_clear_object_luns(struct se_portal_group *tpg) -{ - int i; - struct se_lun *lun; - - spin_lock(&tpg->tpg_lun_lock); - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - lun = tpg->tpg_lun_list[i]; - - if ((lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) || - (lun->lun_se_dev == NULL)) - continue; - - spin_unlock(&tpg->tpg_lun_lock); - core_dev_del_lun(tpg, lun); - spin_lock(&tpg->tpg_lun_lock); - } - spin_unlock(&tpg->tpg_lun_lock); -} -EXPORT_SYMBOL(core_tpg_clear_object_luns); - -/* core_tpg_add_initiator_node_acl(): - * - * - */ struct se_node_acl *core_tpg_add_initiator_node_acl( struct se_portal_group *tpg, - struct se_node_acl *se_nacl, - const char *initiatorname, - u32 queue_depth) + const char *initiatorname) { - struct se_node_acl *acl = NULL; + struct se_node_acl *acl; - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname); if (acl) { if (acl->dynamic_node_acl) { @@ -370,99 +284,42 @@ struct se_node_acl *core_tpg_add_initiator_node_acl( pr_debug("%s_TPG[%u] - Replacing dynamic ACL" " for %s\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), initiatorname); - spin_unlock_irq(&tpg->acl_node_lock); - /* - * Release the locally allocated struct se_node_acl - * because * core_tpg_add_initiator_node_acl() returned - * a pointer to an existing demo mode node ACL. - */ - if (se_nacl) - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, - se_nacl); - goto done; + mutex_unlock(&tpg->acl_node_mutex); + return acl; } pr_err("ACL entry for %s Initiator" " Node %s already exists for TPG %u, ignoring" " request.\n", tpg->se_tpg_tfo->get_fabric_name(), initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); return ERR_PTR(-EEXIST); } - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); - if (!se_nacl) { - pr_err("struct se_node_acl pointer is NULL\n"); - return ERR_PTR(-EINVAL); - } - /* - * For v4.x logic the se_node_acl_s is hanging off a fabric - * dependent structure allocated via - * struct target_core_fabric_ops->fabric_make_nodeacl() - */ - acl = se_nacl; - - INIT_LIST_HEAD(&acl->acl_list); - INIT_LIST_HEAD(&acl->acl_sess_list); - kref_init(&acl->acl_kref); - init_completion(&acl->acl_free_comp); - spin_lock_init(&acl->device_list_lock); - spin_lock_init(&acl->nacl_sess_lock); - atomic_set(&acl->acl_pr_ref_count, 0); - acl->queue_depth = queue_depth; - snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); - acl->se_tpg = tpg; - acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX); - - tpg->se_tpg_tfo->set_default_node_attributes(acl); - - if (core_create_device_list_for_node(acl) < 0) { - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); + acl = target_alloc_node_acl(tpg, initiatorname); + if (!acl) return ERR_PTR(-ENOMEM); - } - - if (core_set_queue_depth_for_node(tpg, acl) < 0) { - core_free_device_list_for_node(acl, tpg); - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); - return ERR_PTR(-EINVAL); - } - - spin_lock_irq(&tpg->acl_node_lock); - list_add_tail(&acl->acl_list, &tpg->acl_node_list); - tpg->num_node_acls++; - spin_unlock_irq(&tpg->acl_node_lock); - -done: - pr_debug("%s_TPG[%hu] - Added ACL with TCQ Depth: %d for %s" - " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(), - tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth, - tpg->se_tpg_tfo->get_fabric_name(), initiatorname); + target_add_node_acl(acl); return acl; } -EXPORT_SYMBOL(core_tpg_add_initiator_node_acl); -/* core_tpg_del_initiator_node_acl(): - * - * - */ -int core_tpg_del_initiator_node_acl( - struct se_portal_group *tpg, - struct se_node_acl *acl, - int force) +void core_tpg_del_initiator_node_acl(struct se_node_acl *acl) { + struct se_portal_group *tpg = acl->se_tpg; LIST_HEAD(sess_list); struct se_session *sess, *sess_tmp; unsigned long flags; int rc; - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); if (acl->dynamic_node_acl) { acl->dynamic_node_acl = 0; } list_del(&acl->acl_list); tpg->num_node_acls--; - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); spin_lock_irqsave(&acl->nacl_sess_lock, flags); acl->acl_stop = 1; @@ -494,7 +351,6 @@ int core_tpg_del_initiator_node_acl( wait_for_completion(&acl->acl_free_comp); core_tpg_wait_for_nacl_pr_ref(acl); - core_clear_initiator_node_from_tpg(acl, tpg); core_free_device_list_for_node(acl, tpg); pr_debug("%s_TPG[%hu] - Deleted ACL with TCQ Depth: %d for %s" @@ -502,9 +358,8 @@ int core_tpg_del_initiator_node_acl( tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth, tpg->se_tpg_tfo->get_fabric_name(), acl->initiatorname); - return 0; + kfree(acl); } -EXPORT_SYMBOL(core_tpg_del_initiator_node_acl); /* core_tpg_set_initiator_node_queue_depth(): * @@ -521,21 +376,21 @@ int core_tpg_set_initiator_node_queue_depth( unsigned long flags; int dynamic_acl = 0; - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname); if (!acl) { pr_err("Access Control List entry for %s Initiator" " Node %s does not exists for TPG %hu, ignoring" " request.\n", tpg->se_tpg_tfo->get_fabric_name(), initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); return -ENODEV; } if (acl->dynamic_node_acl) { acl->dynamic_node_acl = 0; dynamic_acl = 1; } - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); spin_lock_irqsave(&tpg->session_lock, flags); list_for_each_entry(sess, &tpg->tpg_sess_list, sess_list) { @@ -551,10 +406,10 @@ int core_tpg_set_initiator_node_queue_depth( tpg->se_tpg_tfo->get_fabric_name(), initiatorname); spin_unlock_irqrestore(&tpg->session_lock, flags); - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); if (dynamic_acl) acl->dynamic_node_acl = 1; - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); return -EEXIST; } /* @@ -589,10 +444,10 @@ int core_tpg_set_initiator_node_queue_depth( if (init_sess) tpg->se_tpg_tfo->close_session(init_sess); - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); if (dynamic_acl) acl->dynamic_node_acl = 1; - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); return -EINVAL; } spin_unlock_irqrestore(&tpg->session_lock, flags); @@ -608,10 +463,10 @@ int core_tpg_set_initiator_node_queue_depth( initiatorname, tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_lock_irq(&tpg->acl_node_lock); + mutex_lock(&tpg->acl_node_mutex); if (dynamic_acl) acl->dynamic_node_acl = 1; - spin_unlock_irq(&tpg->acl_node_lock); + mutex_unlock(&tpg->acl_node_mutex); return 0; } @@ -647,78 +502,54 @@ static void core_tpg_lun_ref_release(struct percpu_ref *ref) complete(&lun->lun_ref_comp); } -static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg) -{ - /* Set in core_dev_setup_virtual_lun0() */ - struct se_device *dev = g_lun0_dev; - struct se_lun *lun = &se_tpg->tpg_virt_lun0; - u32 lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; - int ret; - - lun->unpacked_lun = 0; - lun->lun_status = TRANSPORT_LUN_STATUS_FREE; - atomic_set(&lun->lun_acl_count, 0); - init_completion(&lun->lun_shutdown_comp); - INIT_LIST_HEAD(&lun->lun_acl_list); - spin_lock_init(&lun->lun_acl_lock); - spin_lock_init(&lun->lun_sep_lock); - init_completion(&lun->lun_ref_comp); - - ret = core_tpg_add_lun(se_tpg, lun, lun_access, dev); - if (ret < 0) - return ret; - - return 0; -} - int core_tpg_register( - const struct target_core_fabric_ops *tfo, struct se_wwn *se_wwn, struct se_portal_group *se_tpg, - void *tpg_fabric_ptr, - int se_tpg_type) + int proto_id) { - struct se_lun *lun; - u32 i; - - se_tpg->tpg_lun_list = array_zalloc(TRANSPORT_MAX_LUNS_PER_TPG, - sizeof(struct se_lun), GFP_KERNEL); - if (!se_tpg->tpg_lun_list) { - pr_err("Unable to allocate struct se_portal_group->" - "tpg_lun_list\n"); - return -ENOMEM; - } + int ret; - for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) { - lun = se_tpg->tpg_lun_list[i]; - lun->unpacked_lun = i; - lun->lun_link_magic = SE_LUN_LINK_MAGIC; - lun->lun_status = TRANSPORT_LUN_STATUS_FREE; - atomic_set(&lun->lun_acl_count, 0); - init_completion(&lun->lun_shutdown_comp); - INIT_LIST_HEAD(&lun->lun_acl_list); - spin_lock_init(&lun->lun_acl_lock); - spin_lock_init(&lun->lun_sep_lock); - init_completion(&lun->lun_ref_comp); + if (!se_tpg) + return -EINVAL; + /* + * For the typical case where core_tpg_register() is called by a + * fabric driver from target_core_fabric_ops->fabric_make_tpg() + * configfs context, use the original tf_ops pointer already saved + * by target-core in target_fabric_make_wwn(). + * + * Otherwise, for special cases like iscsi-target discovery TPGs + * the caller is responsible for setting ->se_tpg_tfo ahead of + * calling core_tpg_register(). + */ + if (se_wwn) + se_tpg->se_tpg_tfo = se_wwn->wwn_tf->tf_ops; + + if (!se_tpg->se_tpg_tfo) { + pr_err("Unable to locate se_tpg->se_tpg_tfo pointer\n"); + return -EINVAL; } - se_tpg->se_tpg_type = se_tpg_type; - se_tpg->se_tpg_fabric_ptr = tpg_fabric_ptr; - se_tpg->se_tpg_tfo = tfo; + INIT_HLIST_HEAD(&se_tpg->tpg_lun_hlist); + se_tpg->proto_id = proto_id; se_tpg->se_tpg_wwn = se_wwn; atomic_set(&se_tpg->tpg_pr_ref_count, 0); INIT_LIST_HEAD(&se_tpg->acl_node_list); INIT_LIST_HEAD(&se_tpg->se_tpg_node); INIT_LIST_HEAD(&se_tpg->tpg_sess_list); - spin_lock_init(&se_tpg->acl_node_lock); spin_lock_init(&se_tpg->session_lock); - spin_lock_init(&se_tpg->tpg_lun_lock); - - if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) { - if (core_tpg_setup_virtual_lun0(se_tpg) < 0) { - array_free(se_tpg->tpg_lun_list, - TRANSPORT_MAX_LUNS_PER_TPG); - return -ENOMEM; + mutex_init(&se_tpg->tpg_lun_mutex); + mutex_init(&se_tpg->acl_node_mutex); + + if (se_tpg->proto_id >= 0) { + se_tpg->tpg_virt_lun0 = core_tpg_alloc_lun(se_tpg, 0); + if (IS_ERR(se_tpg->tpg_virt_lun0)) + return PTR_ERR(se_tpg->tpg_virt_lun0); + + ret = core_tpg_add_lun(se_tpg, se_tpg->tpg_virt_lun0, + TRANSPORT_LUNFLAGS_READ_ONLY, g_lun0_dev); + if (ret < 0) { + kfree(se_tpg->tpg_virt_lun0); + return ret; } } @@ -726,11 +557,11 @@ int core_tpg_register( list_add_tail(&se_tpg->se_tpg_node, &tpg_list); spin_unlock_bh(&tpg_lock); - pr_debug("TARGET_CORE[%s]: Allocated %s struct se_portal_group for" - " endpoint: %s, Portal Tag: %u\n", tfo->get_fabric_name(), - (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ? - "Normal" : "Discovery", (tfo->tpg_get_wwn(se_tpg) == NULL) ? - "None" : tfo->tpg_get_wwn(se_tpg), tfo->tpg_get_tag(se_tpg)); + pr_debug("TARGET_CORE[%s]: Allocated portal_group for endpoint: %s, " + "Proto: %d, Portal Tag: %u\n", se_tpg->se_tpg_tfo->get_fabric_name(), + se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) ? + se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) : NULL, + se_tpg->proto_id, se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); return 0; } @@ -738,14 +569,14 @@ EXPORT_SYMBOL(core_tpg_register); int core_tpg_deregister(struct se_portal_group *se_tpg) { + const struct target_core_fabric_ops *tfo = se_tpg->se_tpg_tfo; struct se_node_acl *nacl, *nacl_tmp; + LIST_HEAD(node_list); - pr_debug("TARGET_CORE[%s]: Deallocating %s struct se_portal_group" - " for endpoint: %s Portal Tag %u\n", - (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ? - "Normal" : "Discovery", se_tpg->se_tpg_tfo->get_fabric_name(), - se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg), - se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); + pr_debug("TARGET_CORE[%s]: Deallocating portal_group for endpoint: %s, " + "Proto: %d, Portal Tag: %u\n", tfo->get_fabric_name(), + tfo->tpg_get_wwn(se_tpg) ? tfo->tpg_get_wwn(se_tpg) : NULL, + se_tpg->proto_id, tfo->tpg_get_tag(se_tpg)); spin_lock_bh(&tpg_lock); list_del(&se_tpg->se_tpg_node); @@ -753,61 +584,56 @@ int core_tpg_deregister(struct se_portal_group *se_tpg) while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0) cpu_relax(); + + mutex_lock(&se_tpg->acl_node_mutex); + list_splice_init(&se_tpg->acl_node_list, &node_list); + mutex_unlock(&se_tpg->acl_node_mutex); /* * Release any remaining demo-mode generated se_node_acl that have * not been released because of TFO->tpg_check_demo_mode_cache() == 1 * in transport_deregister_session(). */ - spin_lock_irq(&se_tpg->acl_node_lock); - list_for_each_entry_safe(nacl, nacl_tmp, &se_tpg->acl_node_list, - acl_list) { + list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) { list_del(&nacl->acl_list); se_tpg->num_node_acls--; - spin_unlock_irq(&se_tpg->acl_node_lock); core_tpg_wait_for_nacl_pr_ref(nacl); core_free_device_list_for_node(nacl, se_tpg); - se_tpg->se_tpg_tfo->tpg_release_fabric_acl(se_tpg, nacl); - - spin_lock_irq(&se_tpg->acl_node_lock); + kfree(nacl); } - spin_unlock_irq(&se_tpg->acl_node_lock); - if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) - core_tpg_remove_lun(se_tpg, &se_tpg->tpg_virt_lun0); + if (se_tpg->proto_id >= 0) { + core_tpg_remove_lun(se_tpg, se_tpg->tpg_virt_lun0); + kfree_rcu(se_tpg->tpg_virt_lun0, rcu_head); + } - se_tpg->se_tpg_fabric_ptr = NULL; - array_free(se_tpg->tpg_lun_list, TRANSPORT_MAX_LUNS_PER_TPG); return 0; } EXPORT_SYMBOL(core_tpg_deregister); struct se_lun *core_tpg_alloc_lun( struct se_portal_group *tpg, - u32 unpacked_lun) + u64 unpacked_lun) { struct se_lun *lun; - if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { - pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG" - "-1: %u for Target Portal Group: %u\n", - tpg->se_tpg_tfo->get_fabric_name(), - unpacked_lun, TRANSPORT_MAX_LUNS_PER_TPG-1, - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - return ERR_PTR(-EOVERFLOW); - } - - spin_lock(&tpg->tpg_lun_lock); - lun = tpg->tpg_lun_list[unpacked_lun]; - if (lun->lun_status == TRANSPORT_LUN_STATUS_ACTIVE) { - pr_err("TPG Logical Unit Number: %u is already active" - " on %s Target Portal Group: %u, ignoring request.\n", - unpacked_lun, tpg->se_tpg_tfo->get_fabric_name(), - tpg->se_tpg_tfo->tpg_get_tag(tpg)); - spin_unlock(&tpg->tpg_lun_lock); - return ERR_PTR(-EINVAL); + lun = kzalloc(sizeof(*lun), GFP_KERNEL); + if (!lun) { + pr_err("Unable to allocate se_lun memory\n"); + return ERR_PTR(-ENOMEM); } - spin_unlock(&tpg->tpg_lun_lock); + lun->unpacked_lun = unpacked_lun; + lun->lun_link_magic = SE_LUN_LINK_MAGIC; + atomic_set(&lun->lun_acl_count, 0); + init_completion(&lun->lun_ref_comp); + INIT_LIST_HEAD(&lun->lun_deve_list); + INIT_LIST_HEAD(&lun->lun_dev_link); + atomic_set(&lun->lun_tg_pt_secondary_offline, 0); + spin_lock_init(&lun->lun_deve_lock); + mutex_init(&lun->lun_tg_pt_md_mutex); + INIT_LIST_HEAD(&lun->lun_tg_pt_gp_link); + spin_lock_init(&lun->lun_tg_pt_gp_lock); + lun->lun_tpg = tpg; return lun; } @@ -823,34 +649,73 @@ int core_tpg_add_lun( ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release, 0, GFP_KERNEL); if (ret < 0) - return ret; + goto out; - ret = core_dev_export(dev, tpg, lun); - if (ret < 0) { - percpu_ref_exit(&lun->lun_ref); - return ret; - } + ret = core_alloc_rtpi(lun, dev); + if (ret) + goto out_kill_ref; - spin_lock(&tpg->tpg_lun_lock); - lun->lun_access = lun_access; - lun->lun_status = TRANSPORT_LUN_STATUS_ACTIVE; - spin_unlock(&tpg->tpg_lun_lock); + if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) && + !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) + target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp); + + mutex_lock(&tpg->tpg_lun_mutex); + + spin_lock(&dev->se_port_lock); + lun->lun_index = dev->dev_index; + rcu_assign_pointer(lun->lun_se_dev, dev); + dev->export_count++; + list_add_tail(&lun->lun_dev_link, &dev->dev_sep_list); + spin_unlock(&dev->se_port_lock); + + if (dev->dev_flags & DF_READ_ONLY) + lun->lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; + else + lun->lun_access = lun_access; + if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) + hlist_add_head_rcu(&lun->link, &tpg->tpg_lun_hlist); + mutex_unlock(&tpg->tpg_lun_mutex); return 0; + +out_kill_ref: + percpu_ref_exit(&lun->lun_ref); +out: + return ret; } void core_tpg_remove_lun( struct se_portal_group *tpg, struct se_lun *lun) { + /* + * rcu_dereference_raw protected by se_lun->lun_group symlink + * reference to se_device->dev_group. + */ + struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev); + core_clear_lun_from_tpg(lun, tpg); + /* + * Wait for any active I/O references to percpu se_lun->lun_ref to + * be released. Also, se_lun->lun_ref is now used by PR and ALUA + * logic when referencing a remote target port during ALL_TGT_PT=1 + * and generating UNIT_ATTENTIONs for ALUA access state transition. + */ transport_clear_lun_ref(lun); - core_dev_unexport(lun->lun_se_dev, tpg, lun); + mutex_lock(&tpg->tpg_lun_mutex); + if (lun->lun_se_dev) { + target_detach_tg_pt_gp(lun); - spin_lock(&tpg->tpg_lun_lock); - lun->lun_status = TRANSPORT_LUN_STATUS_FREE; - spin_unlock(&tpg->tpg_lun_lock); + spin_lock(&dev->se_port_lock); + list_del(&lun->lun_dev_link); + dev->export_count--; + rcu_assign_pointer(lun->lun_se_dev, NULL); + spin_unlock(&dev->se_port_lock); + } + if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) + hlist_del_rcu(&lun->link); + mutex_unlock(&tpg->tpg_lun_mutex); percpu_ref_exit(&lun->lun_ref); } diff --git a/kernel/drivers/target/target_core_transport.c b/kernel/drivers/target/target_core_transport.c index 675f2d9d1..94f4ffac7 100644 --- a/kernel/drivers/target/target_core_transport.c +++ b/kernel/drivers/target/target_core_transport.c @@ -34,17 +34,16 @@ #include <linux/cdrom.h> #include <linux/module.h> #include <linux/ratelimit.h> +#include <linux/vmalloc.h> #include <asm/unaligned.h> #include <net/sock.h> #include <net/tcp.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> -#include <scsi/scsi_tcq.h> +#include <scsi/scsi_proto.h> +#include <scsi/scsi_common.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_alua.h" @@ -61,7 +60,6 @@ struct kmem_cache *t10_pr_reg_cache; struct kmem_cache *t10_alua_lu_gp_cache; struct kmem_cache *t10_alua_lu_gp_mem_cache; struct kmem_cache *t10_alua_tg_pt_gp_cache; -struct kmem_cache *t10_alua_tg_pt_gp_mem_cache; struct kmem_cache *t10_alua_lba_map_cache; struct kmem_cache *t10_alua_lba_map_mem_cache; @@ -120,16 +118,6 @@ int init_se_kmem_caches(void) "cache failed\n"); goto out_free_lu_gp_mem_cache; } - t10_alua_tg_pt_gp_mem_cache = kmem_cache_create( - "t10_alua_tg_pt_gp_mem_cache", - sizeof(struct t10_alua_tg_pt_gp_member), - __alignof__(struct t10_alua_tg_pt_gp_member), - 0, NULL); - if (!t10_alua_tg_pt_gp_mem_cache) { - pr_err("kmem_cache_create() for t10_alua_tg_pt_gp_" - "mem_t failed\n"); - goto out_free_tg_pt_gp_cache; - } t10_alua_lba_map_cache = kmem_cache_create( "t10_alua_lba_map_cache", sizeof(struct t10_alua_lba_map), @@ -137,7 +125,7 @@ int init_se_kmem_caches(void) if (!t10_alua_lba_map_cache) { pr_err("kmem_cache_create() for t10_alua_lba_map_" "cache failed\n"); - goto out_free_tg_pt_gp_mem_cache; + goto out_free_tg_pt_gp_cache; } t10_alua_lba_map_mem_cache = kmem_cache_create( "t10_alua_lba_map_mem_cache", @@ -160,8 +148,6 @@ out_free_lba_map_mem_cache: kmem_cache_destroy(t10_alua_lba_map_mem_cache); out_free_lba_map_cache: kmem_cache_destroy(t10_alua_lba_map_cache); -out_free_tg_pt_gp_mem_cache: - kmem_cache_destroy(t10_alua_tg_pt_gp_mem_cache); out_free_tg_pt_gp_cache: kmem_cache_destroy(t10_alua_tg_pt_gp_cache); out_free_lu_gp_mem_cache: @@ -187,7 +173,6 @@ void release_se_kmem_caches(void) kmem_cache_destroy(t10_alua_lu_gp_cache); kmem_cache_destroy(t10_alua_lu_gp_mem_cache); kmem_cache_destroy(t10_alua_tg_pt_gp_cache); - kmem_cache_destroy(t10_alua_tg_pt_gp_mem_cache); kmem_cache_destroy(t10_alua_lba_map_cache); kmem_cache_destroy(t10_alua_lba_map_mem_cache); } @@ -280,10 +265,7 @@ int transport_alloc_session_tags(struct se_session *se_sess, if (rc < 0) { pr_err("Unable to init se_sess->sess_tag_pool," " tag_num: %u\n", tag_num); - if (is_vmalloc_addr(se_sess->sess_cmd_map)) - vfree(se_sess->sess_cmd_map); - else - kfree(se_sess->sess_cmd_map); + kvfree(se_sess->sess_cmd_map); se_sess->sess_cmd_map = NULL; return -ENOMEM; } @@ -410,12 +392,6 @@ EXPORT_SYMBOL(target_get_session); void target_put_session(struct se_session *se_sess) { - struct se_portal_group *tpg = se_sess->se_tpg; - - if (tpg->se_tpg_tfo->put_session != NULL) { - tpg->se_tpg_tfo->put_session(se_sess); - return; - } kref_put(&se_sess->sess_kref, target_release_session); } EXPORT_SYMBOL(target_put_session); @@ -490,10 +466,7 @@ void transport_free_session(struct se_session *se_sess) { if (se_sess->sess_cmd_map) { percpu_ida_destroy(&se_sess->sess_tag_pool); - if (is_vmalloc_addr(se_sess->sess_cmd_map)) - vfree(se_sess->sess_cmd_map); - else - kfree(se_sess->sess_cmd_map); + kvfree(se_sess->sess_cmd_map); } kmem_cache_free(se_sess_cache, se_sess); } @@ -505,7 +478,7 @@ void transport_deregister_session(struct se_session *se_sess) const struct target_core_fabric_ops *se_tfo; struct se_node_acl *se_nacl; unsigned long flags; - bool comp_nacl = true; + bool comp_nacl = true, drop_nacl = false; if (!se_tpg) { transport_free_session(se_sess); @@ -525,22 +498,22 @@ void transport_deregister_session(struct se_session *se_sess) */ se_nacl = se_sess->se_node_acl; - spin_lock_irqsave(&se_tpg->acl_node_lock, flags); + mutex_lock(&se_tpg->acl_node_mutex); if (se_nacl && se_nacl->dynamic_node_acl) { if (!se_tfo->tpg_check_demo_mode_cache(se_tpg)) { list_del(&se_nacl->acl_list); se_tpg->num_node_acls--; - spin_unlock_irqrestore(&se_tpg->acl_node_lock, flags); - core_tpg_wait_for_nacl_pr_ref(se_nacl); - core_free_device_list_for_node(se_nacl, se_tpg); - se_tfo->tpg_release_fabric_acl(se_tpg, se_nacl); - - comp_nacl = false; - spin_lock_irqsave(&se_tpg->acl_node_lock, flags); + drop_nacl = true; } } - spin_unlock_irqrestore(&se_tpg->acl_node_lock, flags); + mutex_unlock(&se_tpg->acl_node_mutex); + if (drop_nacl) { + core_tpg_wait_for_nacl_pr_ref(se_nacl); + core_free_device_list_for_node(se_nacl, se_tpg); + kfree(se_nacl); + comp_nacl = false; + } pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n", se_tpg->se_tpg_tfo->get_fabric_name()); /* @@ -555,9 +528,6 @@ void transport_deregister_session(struct se_session *se_sess) } EXPORT_SYMBOL(transport_deregister_session); -/* - * Called with cmd->t_state_lock held. - */ static void target_remove_from_state_list(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; @@ -582,10 +552,6 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists, { unsigned long flags; - spin_lock_irqsave(&cmd->t_state_lock, flags); - if (write_pending) - cmd->t_state = TRANSPORT_WRITE_PENDING; - if (remove_from_lists) { target_remove_from_state_list(cmd); @@ -595,14 +561,17 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists, cmd->se_lun = NULL; } + spin_lock_irqsave(&cmd->t_state_lock, flags); + if (write_pending) + cmd->t_state = TRANSPORT_WRITE_PENDING; + /* * Determine if frontend context caller is requesting the stopping of * this command for frontend exceptions. */ if (cmd->transport_state & CMD_T_STOP) { - pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n", - __func__, __LINE__, - cmd->se_tfo->get_task_tag(cmd)); + pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n", + __func__, __LINE__, cmd->tag); spin_unlock_irqrestore(&cmd->t_state_lock, flags); @@ -649,6 +618,8 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd) void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) { + bool ack_kref = (cmd->se_cmd_flags & SCF_ACK_KREF); + if (cmd->se_cmd_flags & SCF_SE_LUN_CMD) transport_lun_remove_cmd(cmd); /* @@ -660,7 +631,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) if (transport_cmd_check_stop_to_fabric(cmd)) return; - if (remove) + if (remove && ack_kref) transport_put_cmd(cmd); } @@ -728,7 +699,7 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) * Check for case where an explicit ABORT_TASK has been received * and transport_wait_for_tasks() will be waiting for completion.. */ - if (cmd->transport_state & CMD_T_ABORTED && + if (cmd->transport_state & CMD_T_ABORTED || cmd->transport_state & CMD_T_STOP) { spin_unlock_irqrestore(&cmd->t_state_lock, flags); complete_all(&cmd->t_transport_stop_comp); @@ -1103,6 +1074,55 @@ transport_set_vpd_ident(struct t10_vpd *vpd, unsigned char *page_83) } EXPORT_SYMBOL(transport_set_vpd_ident); +static sense_reason_t +target_check_max_data_sg_nents(struct se_cmd *cmd, struct se_device *dev, + unsigned int size) +{ + u32 mtl; + + if (!cmd->se_tfo->max_data_sg_nents) + return TCM_NO_SENSE; + /* + * Check if fabric enforced maximum SGL entries per I/O descriptor + * exceeds se_cmd->data_length. If true, set SCF_UNDERFLOW_BIT + + * residual_count and reduce original cmd->data_length to maximum + * length based on single PAGE_SIZE entry scatter-lists. + */ + mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE); + if (cmd->data_length > mtl) { + /* + * If an existing CDB overflow is present, calculate new residual + * based on CDB size minus fabric maximum transfer length. + * + * If an existing CDB underflow is present, calculate new residual + * based on original cmd->data_length minus fabric maximum transfer + * length. + * + * Otherwise, set the underflow residual based on cmd->data_length + * minus fabric maximum transfer length. + */ + if (cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { + cmd->residual_count = (size - mtl); + } else if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { + u32 orig_dl = size + cmd->residual_count; + cmd->residual_count = (orig_dl - mtl); + } else { + cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; + cmd->residual_count = (cmd->data_length - mtl); + } + cmd->data_length = mtl; + /* + * Reset sbc_check_prot() calculated protection payload + * length based upon the new smaller MTL. + */ + if (cmd->prot_length) { + u32 sectors = (mtl / dev->dev_attrib.block_size); + cmd->prot_length = dev->prot_length * sectors; + } + } + return TCM_NO_SENSE; +} + sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size) { @@ -1116,9 +1136,9 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size) " 0x%02x\n", cmd->se_tfo->get_fabric_name(), cmd->data_length, size, cmd->t_task_cdb[0]); - if (cmd->data_direction == DMA_TO_DEVICE) { - pr_err("Rejecting underflow/overflow" - " WRITE data\n"); + if (cmd->data_direction == DMA_TO_DEVICE && + cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) { + pr_err("Rejecting underflow/overflow WRITE data\n"); return TCM_INVALID_CDB_FIELD; } /* @@ -1148,13 +1168,15 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size) } } - return 0; + return target_check_max_data_sg_nents(cmd, dev, size); } /* * Used by fabric modules containing a local struct se_cmd within their * fabric dependent per I/O descriptor. + * + * Preserves the value of @cmd->tag. */ void transport_init_se_cmd( struct se_cmd *cmd, @@ -1204,14 +1226,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd) " emulation is not supported\n"); return TCM_INVALID_CDB_FIELD; } - /* - * Used to determine when ORDERED commands should go from - * Dormant to Active status. - */ - cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id); - pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n", - cmd->se_ordered_id, cmd->sam_task_attr, - dev->transport->name); + return 0; } @@ -1273,6 +1288,11 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb) } ret = dev->transport->parse_cdb(cmd); + if (ret == TCM_UNSUPPORTED_SCSI_OPCODE) + pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n", + cmd->se_tfo->get_fabric_name(), + cmd->se_sess->se_node_acl->initiatorname, + cmd->t_task_cdb[0]); if (ret) return ret; @@ -1281,11 +1301,7 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb) return ret; cmd->se_cmd_flags |= SCF_SUPPORTED_SAM_OPCODE; - - spin_lock(&cmd->se_lun->lun_sep_lock); - if (cmd->se_lun->lun_sep) - cmd->se_lun->lun_sep->sep_stats.cmd_pdus++; - spin_unlock(&cmd->se_lun->lun_sep_lock); + atomic_long_inc(&cmd->se_lun->lun_stats.cmd_pdus); return 0; } EXPORT_SYMBOL(target_setup_cmd_from_cdb); @@ -1353,11 +1369,9 @@ transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *sgl, cmd->t_data_sg = sgl; cmd->t_data_nents = sgl_count; + cmd->t_bidi_data_sg = sgl_bidi; + cmd->t_bidi_data_nents = sgl_bidi_count; - if (sgl_bidi && sgl_bidi_count) { - cmd->t_bidi_data_sg = sgl_bidi; - cmd->t_bidi_data_nents = sgl_bidi_count; - } cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC; return 0; } @@ -1382,6 +1396,8 @@ transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *sgl, * @sgl_prot: struct scatterlist memory protection information * @sgl_prot_count: scatterlist count for protection information * + * Task tags are supported if the caller has set @se_cmd->tag. + * * Returns non zero to signal active I/O shutdown failure. All other * setup exceptions will be returned as a SCSI CHECK_CONDITION response, * but still return zero here. @@ -1390,7 +1406,7 @@ transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *sgl, * assumes internal allocation of fabric payload buffer by target-core. */ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess, - unsigned char *cdb, unsigned char *sense, u32 unpacked_lun, + unsigned char *cdb, unsigned char *sense, u64 unpacked_lun, u32 data_length, int task_attr, int data_dir, int flags, struct scatterlist *sgl, u32 sgl_count, struct scatterlist *sgl_bidi, u32 sgl_bidi_count, @@ -1419,7 +1435,7 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess * for fabrics using TARGET_SCF_ACK_KREF that expect a second * kref_put() to happen during fabric packet acknowledgement. */ - ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF)); + ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF); if (ret) return ret; /* @@ -1433,7 +1449,7 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess rc = transport_lookup_cmd_lun(se_cmd, unpacked_lun); if (rc) { transport_send_check_condition_and_sense(se_cmd, rc, 0); - target_put_sess_cmd(se_sess, se_cmd); + target_put_sess_cmd(se_cmd); return 0; } @@ -1450,6 +1466,7 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess if (sgl_prot_count) { se_cmd->t_prot_sg = sgl_prot; se_cmd->t_prot_nents = sgl_prot_count; + se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC; } /* @@ -1513,6 +1530,8 @@ EXPORT_SYMBOL(target_submit_cmd_map_sgls); * @data_dir: DMA data direction * @flags: flags for command submission from target_sc_flags_tables * + * Task tags are supported if the caller has set @se_cmd->tag. + * * Returns non zero to signal active I/O shutdown failure. All other * setup exceptions will be returned as a SCSI CHECK_CONDITION response, * but still return zero here. @@ -1523,7 +1542,7 @@ EXPORT_SYMBOL(target_submit_cmd_map_sgls); * It also assumes interal target core SGL memory allocation. */ int target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess, - unsigned char *cdb, unsigned char *sense, u32 unpacked_lun, + unsigned char *cdb, unsigned char *sense, u64 unpacked_lun, u32 data_length, int task_attr, int data_dir, int flags) { return target_submit_cmd_map_sgls(se_cmd, se_sess, cdb, sense, @@ -1560,7 +1579,7 @@ static void target_complete_tmr_failure(struct work_struct *work) **/ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, - unsigned char *sense, u32 unpacked_lun, + unsigned char *sense, u64 unpacked_lun, void *fabric_tmr_ptr, unsigned char tm_type, gfp_t gfp, unsigned int tag, int flags) { @@ -1584,7 +1603,7 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, se_cmd->se_tmr_req->ref_task_tag = tag; /* See target_submit_cmd for commentary */ - ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF)); + ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF); if (ret) { core_tmr_release_req(se_cmd->se_tmr_req); return ret; @@ -1638,11 +1657,10 @@ bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags) void transport_generic_request_failure(struct se_cmd *cmd, sense_reason_t sense_reason) { - int ret = 0; + int ret = 0, post_ret = 0; - pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x" - " CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd), - cmd->t_task_cdb[0]); + pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08llx" + " CDB: 0x%02x\n", cmd, cmd->tag, cmd->t_task_cdb[0]); pr_debug("-----[ i_state: %d t_state: %d sense_reason: %d\n", cmd->se_tfo->get_cmd_state(cmd), cmd->t_state, sense_reason); @@ -1661,7 +1679,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, */ if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) && cmd->transport_complete_callback) - cmd->transport_complete_callback(cmd, false); + cmd->transport_complete_callback(cmd, false, &post_ret); switch (sense_reason) { case TCM_NON_EXISTENT_LUN: @@ -1699,13 +1717,13 @@ void transport_generic_request_failure(struct se_cmd *cmd, * See spc4r17, section 7.4.6 Control Mode Page, Table 349 */ if (cmd->se_sess && - cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2) - core_scsi3_ua_allocate(cmd->se_sess->se_node_acl, - cmd->orig_fe_lun, 0x2C, - ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS); - + cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2) { + target_ua_allocate_lun(cmd->se_sess->se_node_acl, + cmd->orig_fe_lun, 0x2C, + ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS); + } trace_target_cmd_complete(cmd); - ret = cmd->se_tfo-> queue_status(cmd); + ret = cmd->se_tfo->queue_status(cmd); if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; goto check_stop; @@ -1722,8 +1740,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, check_stop: transport_lun_remove_cmd(cmd); - if (!transport_cmd_check_stop_to_fabric(cmd)) - ; + transport_cmd_check_stop_to_fabric(cmd); return; queue_full: @@ -1766,8 +1783,8 @@ static int target_write_prot_action(struct se_cmd *cmd) break; sectors = cmd->data_length >> ilog2(cmd->se_dev->dev_attrib.block_size); - cmd->pi_err = sbc_dif_verify_write(cmd, cmd->t_task_lba, - sectors, 0, NULL, 0); + cmd->pi_err = sbc_dif_verify(cmd, cmd->t_task_lba, + sectors, 0, cmd->t_prot_sg, 0); if (unlikely(cmd->pi_err)) { spin_lock_irq(&cmd->t_state_lock); cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT); @@ -1796,16 +1813,14 @@ static bool target_handle_task_attr(struct se_cmd *cmd) */ switch (cmd->sam_task_attr) { case TCM_HEAD_TAG: - pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x, " - "se_ordered_id: %u\n", - cmd->t_task_cdb[0], cmd->se_ordered_id); + pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x\n", + cmd->t_task_cdb[0]); return false; case TCM_ORDERED_TAG: atomic_inc_mb(&dev->dev_ordered_sync); - pr_debug("Added ORDERED for CDB: 0x%02x to ordered list, " - " se_ordered_id: %u\n", - cmd->t_task_cdb[0], cmd->se_ordered_id); + pr_debug("Added ORDERED for CDB: 0x%02x to ordered list\n", + cmd->t_task_cdb[0]); /* * Execute an ORDERED command if no other older commands @@ -1829,30 +1844,29 @@ static bool target_handle_task_attr(struct se_cmd *cmd) list_add_tail(&cmd->se_delayed_node, &dev->delayed_cmd_list); spin_unlock(&dev->delayed_cmd_lock); - pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to" - " delayed CMD list, se_ordered_id: %u\n", - cmd->t_task_cdb[0], cmd->sam_task_attr, - cmd->se_ordered_id); + pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to delayed CMD listn", + cmd->t_task_cdb[0], cmd->sam_task_attr); return true; } +static int __transport_check_aborted_status(struct se_cmd *, int); + void target_execute_cmd(struct se_cmd *cmd) { /* - * If the received CDB has aleady been aborted stop processing it here. - */ - if (transport_check_aborted_status(cmd, 1)) - return; - - /* * Determine if frontend context caller is requesting the stopping of * this command for frontend exceptions. + * + * If the received CDB has aleady been aborted stop processing it here. */ spin_lock_irq(&cmd->t_state_lock); + if (__transport_check_aborted_status(cmd, 1)) { + spin_unlock_irq(&cmd->t_state_lock); + return; + } if (cmd->transport_state & CMD_T_STOP) { - pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n", - __func__, __LINE__, - cmd->se_tfo->get_task_tag(cmd)); + pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n", + __func__, __LINE__, cmd->tag); spin_unlock_irq(&cmd->t_state_lock); complete_all(&cmd->t_transport_stop_comp); @@ -1918,20 +1932,18 @@ static void transport_complete_task_attr(struct se_cmd *cmd) if (cmd->sam_task_attr == TCM_SIMPLE_TAG) { atomic_dec_mb(&dev->simple_cmds); dev->dev_cur_ordered_id++; - pr_debug("Incremented dev->dev_cur_ordered_id: %u for" - " SIMPLE: %u\n", dev->dev_cur_ordered_id, - cmd->se_ordered_id); + pr_debug("Incremented dev->dev_cur_ordered_id: %u for SIMPLE\n", + dev->dev_cur_ordered_id); } else if (cmd->sam_task_attr == TCM_HEAD_TAG) { dev->dev_cur_ordered_id++; - pr_debug("Incremented dev_cur_ordered_id: %u for" - " HEAD_OF_QUEUE: %u\n", dev->dev_cur_ordered_id, - cmd->se_ordered_id); + pr_debug("Incremented dev_cur_ordered_id: %u for HEAD_OF_QUEUE\n", + dev->dev_cur_ordered_id); } else if (cmd->sam_task_attr == TCM_ORDERED_TAG) { atomic_dec_mb(&dev->dev_ordered_sync); dev->dev_cur_ordered_id++; - pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED:" - " %u\n", dev->dev_cur_ordered_id, cmd->se_ordered_id); + pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n", + dev->dev_cur_ordered_id); } target_restart_delayed_cmds(dev); @@ -1991,16 +2003,17 @@ static void transport_handle_queue_full( static bool target_read_prot_action(struct se_cmd *cmd) { - sense_reason_t rc; - switch (cmd->prot_op) { case TARGET_PROT_DIN_STRIP: if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) { - rc = sbc_dif_read_strip(cmd); - if (rc) { - cmd->pi_err = rc; + u32 sectors = cmd->data_length >> + ilog2(cmd->se_dev->dev_attrib.block_size); + + cmd->pi_err = sbc_dif_verify(cmd, cmd->t_task_lba, + sectors, 0, cmd->t_prot_sg, + 0); + if (cmd->pi_err) return true; - } } break; case TARGET_PROT_DIN_INSERT: @@ -2056,11 +2069,13 @@ static void target_complete_ok_work(struct work_struct *work) */ if (cmd->transport_complete_callback) { sense_reason_t rc; + bool caw = (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE); + bool zero_dl = !(cmd->data_length); + int post_ret = 0; - rc = cmd->transport_complete_callback(cmd, true); - if (!rc && !(cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE_POST)) { - if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) && - !cmd->data_length) + rc = cmd->transport_complete_callback(cmd, true, &post_ret); + if (!rc && !post_ret) { + if (caw && zero_dl) goto queue_rsp; return; @@ -2079,12 +2094,8 @@ static void target_complete_ok_work(struct work_struct *work) queue_rsp: switch (cmd->data_direction) { case DMA_FROM_DEVICE: - spin_lock(&cmd->se_lun->lun_sep_lock); - if (cmd->se_lun->lun_sep) { - cmd->se_lun->lun_sep->sep_stats.tx_data_octets += - cmd->data_length; - } - spin_unlock(&cmd->se_lun->lun_sep_lock); + atomic_long_add(cmd->data_length, + &cmd->se_lun->lun_stats.tx_data_octets); /* * Perform READ_STRIP of PI using software emulation when * backend had PI enabled, if the transport will not be @@ -2107,22 +2118,14 @@ queue_rsp: goto queue_full; break; case DMA_TO_DEVICE: - spin_lock(&cmd->se_lun->lun_sep_lock); - if (cmd->se_lun->lun_sep) { - cmd->se_lun->lun_sep->sep_stats.rx_data_octets += - cmd->data_length; - } - spin_unlock(&cmd->se_lun->lun_sep_lock); + atomic_long_add(cmd->data_length, + &cmd->se_lun->lun_stats.rx_data_octets); /* * Check if we need to send READ payload for BIDI-COMMAND */ if (cmd->se_cmd_flags & SCF_BIDI) { - spin_lock(&cmd->se_lun->lun_sep_lock); - if (cmd->se_lun->lun_sep) { - cmd->se_lun->lun_sep->sep_stats.tx_data_octets += - cmd->data_length; - } - spin_unlock(&cmd->se_lun->lun_sep_lock); + atomic_long_add(cmd->data_length, + &cmd->se_lun->lun_stats.tx_data_octets); ret = cmd->se_tfo->queue_data_in(cmd); if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; @@ -2179,6 +2182,12 @@ static inline void transport_reset_sgl_orig(struct se_cmd *cmd) static inline void transport_free_pages(struct se_cmd *cmd) { + if (!(cmd->se_cmd_flags & SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC)) { + transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents); + cmd->t_prot_sg = NULL; + cmd->t_prot_nents = 0; + } + if (cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC) { /* * Release special case READ buffer payload required for @@ -2202,44 +2211,22 @@ static inline void transport_free_pages(struct se_cmd *cmd) transport_free_sgl(cmd->t_bidi_data_sg, cmd->t_bidi_data_nents); cmd->t_bidi_data_sg = NULL; cmd->t_bidi_data_nents = 0; - - transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents); - cmd->t_prot_sg = NULL; - cmd->t_prot_nents = 0; } /** - * transport_release_cmd - free a command - * @cmd: command to free + * transport_put_cmd - release a reference to a command + * @cmd: command to release * - * This routine unconditionally frees a command, and reference counting - * or list removal must be done in the caller. + * This routine releases our reference to the command and frees it if possible. */ -static int transport_release_cmd(struct se_cmd *cmd) +static int transport_put_cmd(struct se_cmd *cmd) { BUG_ON(!cmd->se_tfo); - - if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) - core_tmr_release_req(cmd->se_tmr_req); - if (cmd->t_task_cdb != cmd->__t_task_cdb) - kfree(cmd->t_task_cdb); /* * If this cmd has been setup with target_get_sess_cmd(), drop * the kref and call ->release_cmd() in kref callback. */ - return target_put_sess_cmd(cmd->se_sess, cmd); -} - -/** - * transport_put_cmd - release a reference to a command - * @cmd: command to release - * - * This routine releases our reference to the command and frees it if possible. - */ -static int transport_put_cmd(struct se_cmd *cmd) -{ - transport_free_pages(cmd); - return transport_release_cmd(cmd); + return target_put_sess_cmd(cmd); } void *transport_kmap_data_sg(struct se_cmd *cmd) @@ -2344,6 +2331,14 @@ transport_generic_new_cmd(struct se_cmd *cmd) int ret = 0; bool zero_flag = !(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB); + if (cmd->prot_op != TARGET_PROT_NORMAL && + !(cmd->se_cmd_flags & SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC)) { + ret = target_alloc_sgl(&cmd->t_prot_sg, &cmd->t_prot_nents, + cmd->prot_length, true); + if (ret < 0) + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + } + /* * Determine is the TCM fabric module has already allocated physical * memory, and is directly calling transport_generic_map_mem_to_cmd() @@ -2369,14 +2364,6 @@ transport_generic_new_cmd(struct se_cmd *cmd) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } - if (cmd->prot_op != TARGET_PROT_NORMAL) { - ret = target_alloc_sgl(&cmd->t_prot_sg, - &cmd->t_prot_nents, - cmd->prot_length, true); - if (ret < 0) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - } - ret = target_alloc_sgl(&cmd->t_data_sg, &cmd->t_data_nents, cmd->data_length, zero_flag); if (ret < 0) @@ -2437,47 +2424,70 @@ static void transport_write_pending_qf(struct se_cmd *cmd) } } -int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) +static bool +__transport_wait_for_tasks(struct se_cmd *, bool, bool *, bool *, + unsigned long *flags); + +static void target_wait_free_cmd(struct se_cmd *cmd, bool *aborted, bool *tas) { unsigned long flags; + + spin_lock_irqsave(&cmd->t_state_lock, flags); + __transport_wait_for_tasks(cmd, true, aborted, tas, &flags); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); +} + +int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) +{ int ret = 0; + bool aborted = false, tas = false; if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD)) { if (wait_for_tasks && (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) - transport_wait_for_tasks(cmd); + target_wait_free_cmd(cmd, &aborted, &tas); - ret = transport_release_cmd(cmd); + if (!aborted || tas) + ret = transport_put_cmd(cmd); } else { if (wait_for_tasks) - transport_wait_for_tasks(cmd); + target_wait_free_cmd(cmd, &aborted, &tas); /* * Handle WRITE failure case where transport_generic_new_cmd() * has already added se_cmd to state_list, but fabric has * failed command before I/O submission. */ - if (cmd->state_active) { - spin_lock_irqsave(&cmd->t_state_lock, flags); + if (cmd->state_active) target_remove_from_state_list(cmd); - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - } if (cmd->se_lun) transport_lun_remove_cmd(cmd); - ret = transport_put_cmd(cmd); + if (!aborted || tas) + ret = transport_put_cmd(cmd); + } + /* + * If the task has been internally aborted due to TMR ABORT_TASK + * or LUN_RESET, target_core_tmr.c is responsible for performing + * the remaining calls to target_put_sess_cmd(), and not the + * callers of this function. + */ + if (aborted) { + pr_debug("Detected CMD_T_ABORTED for ITT: %llu\n", cmd->tag); + wait_for_completion(&cmd->cmd_wait_comp); + cmd->se_tfo->release_cmd(cmd); + ret = 1; } return ret; } EXPORT_SYMBOL(transport_generic_free_cmd); /* target_get_sess_cmd - Add command to active ->sess_cmd_list - * @se_sess: session to reference * @se_cmd: command descriptor to add * @ack_kref: Signal that fabric will perform an ack target_put_sess_cmd() */ -int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd, - bool ack_kref) +int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref) { + struct se_session *se_sess = se_cmd->se_sess; unsigned long flags; int ret = 0; @@ -2499,46 +2509,68 @@ out: spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); if (ret && ack_kref) - target_put_sess_cmd(se_sess, se_cmd); + target_put_sess_cmd(se_cmd); return ret; } EXPORT_SYMBOL(target_get_sess_cmd); +static void target_free_cmd_mem(struct se_cmd *cmd) +{ + transport_free_pages(cmd); + + if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) + core_tmr_release_req(cmd->se_tmr_req); + if (cmd->t_task_cdb != cmd->__t_task_cdb) + kfree(cmd->t_task_cdb); +} + static void target_release_cmd_kref(struct kref *kref) - __releases(&se_cmd->se_sess->sess_cmd_lock) { struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref); struct se_session *se_sess = se_cmd->se_sess; + unsigned long flags; + bool fabric_stop; + spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); if (list_empty(&se_cmd->se_cmd_list)) { - spin_unlock(&se_sess->sess_cmd_lock); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + target_free_cmd_mem(se_cmd); se_cmd->se_tfo->release_cmd(se_cmd); return; } - if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) { - spin_unlock(&se_sess->sess_cmd_lock); + + spin_lock(&se_cmd->t_state_lock); + fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP); + spin_unlock(&se_cmd->t_state_lock); + + if (se_cmd->cmd_wait_set || fabric_stop) { + list_del_init(&se_cmd->se_cmd_list); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + target_free_cmd_mem(se_cmd); complete(&se_cmd->cmd_wait_comp); return; } - list_del(&se_cmd->se_cmd_list); - spin_unlock(&se_sess->sess_cmd_lock); + list_del_init(&se_cmd->se_cmd_list); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + target_free_cmd_mem(se_cmd); se_cmd->se_tfo->release_cmd(se_cmd); } /* target_put_sess_cmd - Check for active I/O shutdown via kref_put - * @se_sess: session to reference * @se_cmd: command descriptor to drop */ -int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd) +int target_put_sess_cmd(struct se_cmd *se_cmd) { + struct se_session *se_sess = se_cmd->se_sess; + if (!se_sess) { + target_free_cmd_mem(se_cmd); se_cmd->se_tfo->release_cmd(se_cmd); return 1; } - return kref_put_spinlock_irqsave(&se_cmd->cmd_kref, target_release_cmd_kref, - &se_sess->sess_cmd_lock); + return kref_put(&se_cmd->cmd_kref, target_release_cmd_kref); } EXPORT_SYMBOL(target_put_sess_cmd); @@ -2551,6 +2583,7 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess) { struct se_cmd *se_cmd; unsigned long flags; + int rc; spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); if (se_sess->sess_tearing_down) { @@ -2560,8 +2593,15 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess) se_sess->sess_tearing_down = 1; list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list); - list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) - se_cmd->cmd_wait_set = 1; + list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) { + rc = kref_get_unless_zero(&se_cmd->cmd_kref); + if (rc) { + se_cmd->cmd_wait_set = 1; + spin_lock(&se_cmd->t_state_lock); + se_cmd->transport_state |= CMD_T_FABRIC_STOP; + spin_unlock(&se_cmd->t_state_lock); + } + } spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); } @@ -2574,15 +2614,25 @@ void target_wait_for_sess_cmds(struct se_session *se_sess) { struct se_cmd *se_cmd, *tmp_cmd; unsigned long flags; + bool tas; list_for_each_entry_safe(se_cmd, tmp_cmd, &se_sess->sess_wait_list, se_cmd_list) { - list_del(&se_cmd->se_cmd_list); + list_del_init(&se_cmd->se_cmd_list); pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:" " %d\n", se_cmd, se_cmd->t_state, se_cmd->se_tfo->get_cmd_state(se_cmd)); + spin_lock_irqsave(&se_cmd->t_state_lock, flags); + tas = (se_cmd->transport_state & CMD_T_TAS); + spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); + + if (!target_put_sess_cmd(se_cmd)) { + if (tas) + target_put_sess_cmd(se_cmd); + } + wait_for_completion(&se_cmd->cmd_wait_comp); pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d" " fabric state: %d\n", se_cmd, se_cmd->t_state, @@ -2598,117 +2648,237 @@ void target_wait_for_sess_cmds(struct se_session *se_sess) } EXPORT_SYMBOL(target_wait_for_sess_cmds); -static int transport_clear_lun_ref_thread(void *p) +void transport_clear_lun_ref(struct se_lun *lun) { - struct se_lun *lun = p; - percpu_ref_kill(&lun->lun_ref); - wait_for_completion(&lun->lun_ref_comp); - complete(&lun->lun_shutdown_comp); - - return 0; } -int transport_clear_lun_ref(struct se_lun *lun) +static bool +__transport_wait_for_tasks(struct se_cmd *cmd, bool fabric_stop, + bool *aborted, bool *tas, unsigned long *flags) + __releases(&cmd->t_state_lock) + __acquires(&cmd->t_state_lock) { - struct task_struct *kt; - kt = kthread_run(transport_clear_lun_ref_thread, lun, - "tcm_cl_%u", lun->unpacked_lun); - if (IS_ERR(kt)) { - pr_err("Unable to start clear_lun thread\n"); - return PTR_ERR(kt); - } - wait_for_completion(&lun->lun_shutdown_comp); + assert_spin_locked(&cmd->t_state_lock); + WARN_ON_ONCE(!irqs_disabled()); - return 0; -} + if (fabric_stop) + cmd->transport_state |= CMD_T_FABRIC_STOP; -/** - * transport_wait_for_tasks - wait for completion to occur - * @cmd: command to wait - * - * Called from frontend fabric context to wait for storage engine - * to pause and/or release frontend generated struct se_cmd. - */ -bool transport_wait_for_tasks(struct se_cmd *cmd) -{ - unsigned long flags; + if (cmd->transport_state & CMD_T_ABORTED) + *aborted = true; + + if (cmd->transport_state & CMD_T_TAS) + *tas = true; - spin_lock_irqsave(&cmd->t_state_lock, flags); if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) && - !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) return false; - } if (!(cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) && - !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) return false; - } - if (!(cmd->transport_state & CMD_T_ACTIVE)) { - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + if (!(cmd->transport_state & CMD_T_ACTIVE)) + return false; + + if (fabric_stop && *aborted) return false; - } cmd->transport_state |= CMD_T_STOP; - pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08x" - " i_state: %d, t_state: %d, CMD_T_STOP\n", - cmd, cmd->se_tfo->get_task_tag(cmd), - cmd->se_tfo->get_cmd_state(cmd), cmd->t_state); + pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d," + " t_state: %d, CMD_T_STOP\n", cmd, cmd->tag, + cmd->se_tfo->get_cmd_state(cmd), cmd->t_state); - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + spin_unlock_irqrestore(&cmd->t_state_lock, *flags); wait_for_completion(&cmd->t_transport_stop_comp); - spin_lock_irqsave(&cmd->t_state_lock, flags); + spin_lock_irqsave(&cmd->t_state_lock, *flags); cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP); - pr_debug("wait_for_tasks: Stopped wait_for_completion(" - "&cmd->t_transport_stop_comp) for ITT: 0x%08x\n", - cmd->se_tfo->get_task_tag(cmd)); - - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->" + "t_transport_stop_comp) for ITT: 0x%08llx\n", cmd->tag); return true; } -EXPORT_SYMBOL(transport_wait_for_tasks); -static int transport_get_sense_codes( - struct se_cmd *cmd, - u8 *asc, - u8 *ascq) +/** + * transport_wait_for_tasks - wait for completion to occur + * @cmd: command to wait + * + * Called from frontend fabric context to wait for storage engine + * to pause and/or release frontend generated struct se_cmd. + */ +bool transport_wait_for_tasks(struct se_cmd *cmd) { - *asc = cmd->scsi_asc; - *ascq = cmd->scsi_ascq; + unsigned long flags; + bool ret, aborted = false, tas = false; - return 0; + spin_lock_irqsave(&cmd->t_state_lock, flags); + ret = __transport_wait_for_tasks(cmd, false, &aborted, &tas, &flags); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + + return ret; } +EXPORT_SYMBOL(transport_wait_for_tasks); + +struct sense_info { + u8 key; + u8 asc; + u8 ascq; + bool add_sector_info; +}; + +static const struct sense_info sense_info_table[] = { + [TCM_NO_SENSE] = { + .key = NOT_READY + }, + [TCM_NON_EXISTENT_LUN] = { + .key = ILLEGAL_REQUEST, + .asc = 0x25 /* LOGICAL UNIT NOT SUPPORTED */ + }, + [TCM_UNSUPPORTED_SCSI_OPCODE] = { + .key = ILLEGAL_REQUEST, + .asc = 0x20, /* INVALID COMMAND OPERATION CODE */ + }, + [TCM_SECTOR_COUNT_TOO_MANY] = { + .key = ILLEGAL_REQUEST, + .asc = 0x20, /* INVALID COMMAND OPERATION CODE */ + }, + [TCM_UNKNOWN_MODE_PAGE] = { + .key = ILLEGAL_REQUEST, + .asc = 0x24, /* INVALID FIELD IN CDB */ + }, + [TCM_CHECK_CONDITION_ABORT_CMD] = { + .key = ABORTED_COMMAND, + .asc = 0x29, /* BUS DEVICE RESET FUNCTION OCCURRED */ + .ascq = 0x03, + }, + [TCM_INCORRECT_AMOUNT_OF_DATA] = { + .key = ABORTED_COMMAND, + .asc = 0x0c, /* WRITE ERROR */ + .ascq = 0x0d, /* NOT ENOUGH UNSOLICITED DATA */ + }, + [TCM_INVALID_CDB_FIELD] = { + .key = ILLEGAL_REQUEST, + .asc = 0x24, /* INVALID FIELD IN CDB */ + }, + [TCM_INVALID_PARAMETER_LIST] = { + .key = ILLEGAL_REQUEST, + .asc = 0x26, /* INVALID FIELD IN PARAMETER LIST */ + }, + [TCM_PARAMETER_LIST_LENGTH_ERROR] = { + .key = ILLEGAL_REQUEST, + .asc = 0x1a, /* PARAMETER LIST LENGTH ERROR */ + }, + [TCM_UNEXPECTED_UNSOLICITED_DATA] = { + .key = ILLEGAL_REQUEST, + .asc = 0x0c, /* WRITE ERROR */ + .ascq = 0x0c, /* UNEXPECTED_UNSOLICITED_DATA */ + }, + [TCM_SERVICE_CRC_ERROR] = { + .key = ABORTED_COMMAND, + .asc = 0x47, /* PROTOCOL SERVICE CRC ERROR */ + .ascq = 0x05, /* N/A */ + }, + [TCM_SNACK_REJECTED] = { + .key = ABORTED_COMMAND, + .asc = 0x11, /* READ ERROR */ + .ascq = 0x13, /* FAILED RETRANSMISSION REQUEST */ + }, + [TCM_WRITE_PROTECTED] = { + .key = DATA_PROTECT, + .asc = 0x27, /* WRITE PROTECTED */ + }, + [TCM_ADDRESS_OUT_OF_RANGE] = { + .key = ILLEGAL_REQUEST, + .asc = 0x21, /* LOGICAL BLOCK ADDRESS OUT OF RANGE */ + }, + [TCM_CHECK_CONDITION_UNIT_ATTENTION] = { + .key = UNIT_ATTENTION, + }, + [TCM_CHECK_CONDITION_NOT_READY] = { + .key = NOT_READY, + }, + [TCM_MISCOMPARE_VERIFY] = { + .key = MISCOMPARE, + .asc = 0x1d, /* MISCOMPARE DURING VERIFY OPERATION */ + .ascq = 0x00, + }, + [TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED] = { + .key = ABORTED_COMMAND, + .asc = 0x10, + .ascq = 0x01, /* LOGICAL BLOCK GUARD CHECK FAILED */ + .add_sector_info = true, + }, + [TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED] = { + .key = ABORTED_COMMAND, + .asc = 0x10, + .ascq = 0x02, /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */ + .add_sector_info = true, + }, + [TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED] = { + .key = ABORTED_COMMAND, + .asc = 0x10, + .ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */ + .add_sector_info = true, + }, + [TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = { + /* + * Returning ILLEGAL REQUEST would cause immediate IO errors on + * Solaris initiators. Returning NOT READY instead means the + * operations will be retried a finite number of times and we + * can survive intermittent errors. + */ + .key = NOT_READY, + .asc = 0x08, /* LOGICAL UNIT COMMUNICATION FAILURE */ + }, +}; -static -void transport_err_sector_info(unsigned char *buffer, sector_t bad_sector) +static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason) { - /* Place failed LBA in sense data information descriptor 0. */ - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 0xc; - buffer[SPC_DESC_TYPE_OFFSET] = 0; /* Information */ - buffer[SPC_ADDITIONAL_DESC_LEN_OFFSET] = 0xa; - buffer[SPC_VALIDITY_OFFSET] = 0x80; + const struct sense_info *si; + u8 *buffer = cmd->sense_buffer; + int r = (__force int)reason; + u8 asc, ascq; + bool desc_format = target_sense_desc_format(cmd->se_dev); + + if (r < ARRAY_SIZE(sense_info_table) && sense_info_table[r].key) + si = &sense_info_table[r]; + else + si = &sense_info_table[(__force int) + TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE]; - /* Descriptor Information: failing sector */ - put_unaligned_be64(bad_sector, &buffer[12]); + if (reason == TCM_CHECK_CONDITION_UNIT_ATTENTION) { + core_scsi3_ua_for_check_condition(cmd, &asc, &ascq); + WARN_ON_ONCE(asc == 0); + } else if (si->asc == 0) { + WARN_ON_ONCE(cmd->scsi_asc == 0); + asc = cmd->scsi_asc; + ascq = cmd->scsi_ascq; + } else { + asc = si->asc; + ascq = si->ascq; + } + + scsi_build_sense_buffer(desc_format, buffer, si->key, asc, ascq); + if (si->add_sector_info) + return scsi_set_sense_information(buffer, + cmd->scsi_sense_length, + cmd->bad_sector); + + return 0; } int transport_send_check_condition_and_sense(struct se_cmd *cmd, sense_reason_t reason, int from_transport) { - unsigned char *buffer = cmd->sense_buffer; unsigned long flags; - u8 asc = 0, ascq = 0; spin_lock_irqsave(&cmd->t_state_lock, flags); if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { @@ -2718,270 +2888,65 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd, cmd->se_cmd_flags |= SCF_SENT_CHECK_CONDITION; spin_unlock_irqrestore(&cmd->t_state_lock, flags); - if (!reason && from_transport) - goto after_reason; + if (!from_transport) { + int rc; - if (!from_transport) cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE; - - /* - * Actual SENSE DATA, see SPC-3 7.23.2 SPC_SENSE_KEY_OFFSET uses - * SENSE KEY values from include/scsi/scsi.h - */ - switch (reason) { - case TCM_NO_SENSE: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* Not Ready */ - buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; - /* NO ADDITIONAL SENSE INFORMATION */ - buffer[SPC_ASC_KEY_OFFSET] = 0; - buffer[SPC_ASCQ_KEY_OFFSET] = 0; - break; - case TCM_NON_EXISTENT_LUN: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL UNIT NOT SUPPORTED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x25; - break; - case TCM_UNSUPPORTED_SCSI_OPCODE: - case TCM_SECTOR_COUNT_TOO_MANY: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID COMMAND OPERATION CODE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x20; - break; - case TCM_UNKNOWN_MODE_PAGE: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID FIELD IN CDB */ - buffer[SPC_ASC_KEY_OFFSET] = 0x24; - break; - case TCM_CHECK_CONDITION_ABORT_CMD: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* BUS DEVICE RESET FUNCTION OCCURRED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x29; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x03; - break; - case TCM_INCORRECT_AMOUNT_OF_DATA: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* WRITE ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x0c; - /* NOT ENOUGH UNSOLICITED DATA */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x0d; - break; - case TCM_INVALID_CDB_FIELD: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID FIELD IN CDB */ - buffer[SPC_ASC_KEY_OFFSET] = 0x24; - break; - case TCM_INVALID_PARAMETER_LIST: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID FIELD IN PARAMETER LIST */ - buffer[SPC_ASC_KEY_OFFSET] = 0x26; - break; - case TCM_PARAMETER_LIST_LENGTH_ERROR: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* PARAMETER LIST LENGTH ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x1a; - break; - case TCM_UNEXPECTED_UNSOLICITED_DATA: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* WRITE ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x0c; - /* UNEXPECTED_UNSOLICITED_DATA */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x0c; - break; - case TCM_SERVICE_CRC_ERROR: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* PROTOCOL SERVICE CRC ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x47; - /* N/A */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x05; - break; - case TCM_SNACK_REJECTED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* READ ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x11; - /* FAILED RETRANSMISSION REQUEST */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x13; - break; - case TCM_WRITE_PROTECTED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* DATA PROTECT */ - buffer[SPC_SENSE_KEY_OFFSET] = DATA_PROTECT; - /* WRITE PROTECTED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x27; - break; - case TCM_ADDRESS_OUT_OF_RANGE: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK ADDRESS OUT OF RANGE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x21; - break; - case TCM_CHECK_CONDITION_UNIT_ATTENTION: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* UNIT ATTENTION */ - buffer[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; - core_scsi3_ua_for_check_condition(cmd, &asc, &ascq); - buffer[SPC_ASC_KEY_OFFSET] = asc; - buffer[SPC_ASCQ_KEY_OFFSET] = ascq; - break; - case TCM_CHECK_CONDITION_NOT_READY: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* Not Ready */ - buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; - transport_get_sense_codes(cmd, &asc, &ascq); - buffer[SPC_ASC_KEY_OFFSET] = asc; - buffer[SPC_ASCQ_KEY_OFFSET] = ascq; - break; - case TCM_MISCOMPARE_VERIFY: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - buffer[SPC_SENSE_KEY_OFFSET] = MISCOMPARE; - /* MISCOMPARE DURING VERIFY OPERATION */ - buffer[SPC_ASC_KEY_OFFSET] = 0x1d; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x00; - break; - case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK GUARD CHECK FAILED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x10; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x01; - transport_err_sector_info(buffer, cmd->bad_sector); - break; - case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x10; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x02; - transport_err_sector_info(buffer, cmd->bad_sector); - break; - case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x10; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x03; - transport_err_sector_info(buffer, cmd->bad_sector); - break; - case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE: - default: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* - * Returning ILLEGAL REQUEST would cause immediate IO errors on - * Solaris initiators. Returning NOT READY instead means the - * operations will be retried a finite number of times and we - * can survive intermittent errors. - */ - buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; - /* LOGICAL UNIT COMMUNICATION FAILURE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x08; - break; + cmd->scsi_status = SAM_STAT_CHECK_CONDITION; + cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER; + rc = translate_sense_reason(cmd, reason); + if (rc) + return rc; } - /* - * This code uses linux/include/scsi/scsi.h SAM status codes! - */ - cmd->scsi_status = SAM_STAT_CHECK_CONDITION; - /* - * Automatically padded, this value is encoded in the fabric's - * data_length response PDU containing the SCSI defined sense data. - */ - cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER; -after_reason: trace_target_cmd_complete(cmd); return cmd->se_tfo->queue_status(cmd); } EXPORT_SYMBOL(transport_send_check_condition_and_sense); -int transport_check_aborted_status(struct se_cmd *cmd, int send_status) +static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status) + __releases(&cmd->t_state_lock) + __acquires(&cmd->t_state_lock) { + assert_spin_locked(&cmd->t_state_lock); + WARN_ON_ONCE(!irqs_disabled()); + if (!(cmd->transport_state & CMD_T_ABORTED)) return 0; - /* * If cmd has been aborted but either no status is to be sent or it has * already been sent, just return */ - if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) + if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) { + if (send_status) + cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS; return 1; + } - pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n", - cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd)); + pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB:" + " 0x%02x ITT: 0x%08llx\n", cmd->t_task_cdb[0], cmd->tag); cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS; cmd->scsi_status = SAM_STAT_TASK_ABORTED; trace_target_cmd_complete(cmd); + + spin_unlock_irq(&cmd->t_state_lock); cmd->se_tfo->queue_status(cmd); + spin_lock_irq(&cmd->t_state_lock); return 1; } + +int transport_check_aborted_status(struct se_cmd *cmd, int send_status) +{ + int ret; + + spin_lock_irq(&cmd->t_state_lock); + ret = __transport_check_aborted_status(cmd, send_status); + spin_unlock_irq(&cmd->t_state_lock); + + return ret; +} EXPORT_SYMBOL(transport_check_aborted_status); void transport_send_task_abort(struct se_cmd *cmd) @@ -3003,18 +2968,23 @@ void transport_send_task_abort(struct se_cmd *cmd) */ if (cmd->data_direction == DMA_TO_DEVICE) { if (cmd->se_tfo->write_pending_status(cmd) != 0) { - cmd->transport_state |= CMD_T_ABORTED; + spin_lock_irqsave(&cmd->t_state_lock, flags); + if (cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS) { + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + goto send_abort; + } cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS; + spin_unlock_irqrestore(&cmd->t_state_lock, flags); return; } } +send_abort: cmd->scsi_status = SAM_STAT_TASK_ABORTED; transport_lun_remove_cmd(cmd); - pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x," - " ITT: 0x%08x\n", cmd->t_task_cdb[0], - cmd->se_tfo->get_task_tag(cmd)); + pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x, ITT: 0x%08llx\n", + cmd->t_task_cdb[0], cmd->tag); trace_target_cmd_complete(cmd); cmd->se_tfo->queue_status(cmd); @@ -3025,8 +2995,17 @@ static void target_tmr_work(struct work_struct *work) struct se_cmd *cmd = container_of(work, struct se_cmd, work); struct se_device *dev = cmd->se_dev; struct se_tmr_req *tmr = cmd->se_tmr_req; + unsigned long flags; int ret; + spin_lock_irqsave(&cmd->t_state_lock, flags); + if (cmd->transport_state & CMD_T_ABORTED) { + tmr->response = TMR_FUNCTION_REJECTED; + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + goto check_stop; + } + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + switch (tmr->function) { case TMR_ABORT_TASK: core_tmr_abort_task(dev, tmr, cmd->se_sess); @@ -3040,6 +3019,11 @@ static void target_tmr_work(struct work_struct *work) ret = core_tmr_lun_reset(dev, tmr, NULL, NULL); tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE : TMR_FUNCTION_REJECTED; + if (tmr->response == TMR_FUNCTION_COMPLETE) { + target_ua_allocate_lun(cmd->se_sess->se_node_acl, + cmd->orig_fe_lun, 0x29, + ASCQ_29H_BUS_DEVICE_RESET_FUNCTION_OCCURRED); + } break; case TMR_TARGET_WARM_RESET: tmr->response = TMR_FUNCTION_REJECTED; @@ -3054,9 +3038,17 @@ static void target_tmr_work(struct work_struct *work) break; } + spin_lock_irqsave(&cmd->t_state_lock, flags); + if (cmd->transport_state & CMD_T_ABORTED) { + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + goto check_stop; + } cmd->t_state = TRANSPORT_ISTATE_PROCESSING; + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + cmd->se_tfo->queue_tm_rsp(cmd); +check_stop: transport_cmd_check_stop_to_fabric(cmd); } @@ -3074,3 +3066,22 @@ int transport_generic_handle_tmr( return 0; } EXPORT_SYMBOL(transport_generic_handle_tmr); + +bool +target_check_wce(struct se_device *dev) +{ + bool wce = false; + + if (dev->transport->get_write_cache) + wce = dev->transport->get_write_cache(dev); + else if (dev->dev_attrib.emulate_write_cache > 0) + wce = true; + + return wce; +} + +bool +target_check_fua(struct se_device *dev) +{ + return target_check_wce(dev) && dev->dev_attrib.emulate_fua_write > 0; +} diff --git a/kernel/drivers/target/target_core_ua.c b/kernel/drivers/target/target_core_ua.c index 1738b1646..be25eb807 100644 --- a/kernel/drivers/target/target_core_ua.c +++ b/kernel/drivers/target/target_core_ua.c @@ -25,12 +25,10 @@ #include <linux/slab.h> #include <linux/spinlock.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_alua.h" @@ -51,9 +49,17 @@ target_scsi3_ua_check(struct se_cmd *cmd) if (!nacl) return 0; - deve = nacl->device_list[cmd->orig_fe_lun]; - if (!atomic_read(&deve->ua_count)) + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun); + if (!deve) { + rcu_read_unlock(); return 0; + } + if (!atomic_read(&deve->ua_count)) { + rcu_read_unlock(); + return 0; + } + rcu_read_unlock(); /* * From sam4r14, section 5.14 Unit attention condition: * @@ -80,18 +86,11 @@ target_scsi3_ua_check(struct se_cmd *cmd) } int core_scsi3_ua_allocate( - struct se_node_acl *nacl, - u32 unpacked_lun, + struct se_dev_entry *deve, u8 asc, u8 ascq) { - struct se_dev_entry *deve; struct se_ua *ua, *ua_p, *ua_tmp; - /* - * PASSTHROUGH OPS - */ - if (!nacl) - return -EINVAL; ua = kmem_cache_zalloc(se_ua_cache, GFP_ATOMIC); if (!ua) { @@ -100,13 +99,9 @@ int core_scsi3_ua_allocate( } INIT_LIST_HEAD(&ua->ua_nacl_list); - ua->ua_nacl = nacl; ua->ua_asc = asc; ua->ua_ascq = ascq; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[unpacked_lun]; - spin_lock(&deve->ua_lock); list_for_each_entry_safe(ua_p, ua_tmp, &deve->ua_list, ua_nacl_list) { /* @@ -114,7 +109,6 @@ int core_scsi3_ua_allocate( */ if ((ua_p->ua_asc == asc) && (ua_p->ua_ascq == ascq)) { spin_unlock(&deve->ua_lock); - spin_unlock_irq(&nacl->device_list_lock); kmem_cache_free(se_ua_cache, ua); return 0; } @@ -159,24 +153,40 @@ int core_scsi3_ua_allocate( list_add_tail(&ua->ua_nacl_list, &deve->ua_list); spin_unlock(&deve->ua_lock); - spin_unlock_irq(&nacl->device_list_lock); atomic_inc_mb(&deve->ua_count); return 0; } list_add_tail(&ua->ua_nacl_list, &deve->ua_list); spin_unlock(&deve->ua_lock); - spin_unlock_irq(&nacl->device_list_lock); - pr_debug("[%s]: Allocated UNIT ATTENTION, mapped LUN: %u, ASC:" - " 0x%02x, ASCQ: 0x%02x\n", - nacl->se_tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, + pr_debug("Allocated UNIT ATTENTION, mapped LUN: %llu, ASC:" + " 0x%02x, ASCQ: 0x%02x\n", deve->mapped_lun, asc, ascq); atomic_inc_mb(&deve->ua_count); return 0; } +void target_ua_allocate_lun(struct se_node_acl *nacl, + u32 unpacked_lun, u8 asc, u8 ascq) +{ + struct se_dev_entry *deve; + + if (!nacl) + return; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, unpacked_lun); + if (!deve) { + rcu_read_unlock(); + return; + } + + core_scsi3_ua_allocate(deve, asc, ascq); + rcu_read_unlock(); +} + void core_scsi3_ua_release_all( struct se_dev_entry *deve) { @@ -211,10 +221,14 @@ void core_scsi3_ua_for_check_condition( if (!nacl) return; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[cmd->orig_fe_lun]; + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun); + if (!deve) { + rcu_read_unlock(); + return; + } if (!atomic_read(&deve->ua_count)) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return; } /* @@ -250,10 +264,10 @@ void core_scsi3_ua_for_check_condition( atomic_dec_mb(&deve->ua_count); } spin_unlock(&deve->ua_lock); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); pr_debug("[%s]: %s UNIT ATTENTION condition with" - " INTLCK_CTRL: %d, mapped LUN: %u, got CDB: 0x%02x" + " INTLCK_CTRL: %d, mapped LUN: %llu, got CDB: 0x%02x" " reported ASC: 0x%02x, ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->get_fabric_name(), (dev->dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" : @@ -279,10 +293,14 @@ int core_scsi3_ua_clear_for_request_sense( if (!nacl) return -EINVAL; - spin_lock_irq(&nacl->device_list_lock); - deve = nacl->device_list[cmd->orig_fe_lun]; + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun); + if (!deve) { + rcu_read_unlock(); + return -EINVAL; + } if (!atomic_read(&deve->ua_count)) { - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); return -EPERM; } /* @@ -308,10 +326,10 @@ int core_scsi3_ua_clear_for_request_sense( atomic_dec_mb(&deve->ua_count); } spin_unlock(&deve->ua_lock); - spin_unlock_irq(&nacl->device_list_lock); + rcu_read_unlock(); pr_debug("[%s]: Released UNIT ATTENTION condition, mapped" - " LUN: %u, got REQUEST_SENSE reported ASC: 0x%02x," + " LUN: %llu, got REQUEST_SENSE reported ASC: 0x%02x," " ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->get_fabric_name(), cmd->orig_fe_lun, *asc, *ascq); diff --git a/kernel/drivers/target/target_core_ua.h b/kernel/drivers/target/target_core_ua.h index a6b56b364..bd6e78ba1 100644 --- a/kernel/drivers/target/target_core_ua.h +++ b/kernel/drivers/target/target_core_ua.h @@ -25,10 +25,14 @@ #define ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS 0x09 +#define ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED 0x03 +#define ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED 0x0E + extern struct kmem_cache *se_ua_cache; extern sense_reason_t target_scsi3_ua_check(struct se_cmd *); -extern int core_scsi3_ua_allocate(struct se_node_acl *, u32, u8, u8); +extern int core_scsi3_ua_allocate(struct se_dev_entry *, u8, u8); +extern void target_ua_allocate_lun(struct se_node_acl *, u32, u8, u8); extern void core_scsi3_ua_release_all(struct se_dev_entry *); extern void core_scsi3_ua_for_check_condition(struct se_cmd *, u8 *, u8 *); extern int core_scsi3_ua_clear_for_request_sense(struct se_cmd *, diff --git a/kernel/drivers/target/target_core_user.c b/kernel/drivers/target/target_core_user.c index 07d2996d8..5e6d6cb34 100644 --- a/kernel/drivers/target/target_core_user.c +++ b/kernel/drivers/target/target_core_user.c @@ -1,6 +1,7 @@ /* * Copyright (C) 2013 Shaohua Li <shli@kernel.org> * Copyright (C) 2014 Red Hat, Inc. + * Copyright (C) 2015 Arrikto, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -19,16 +20,18 @@ #include <linux/spinlock.h> #include <linux/module.h> #include <linux/idr.h> +#include <linux/kernel.h> #include <linux/timer.h> #include <linux/parser.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> +#include <linux/vmalloc.h> #include <linux/uio_driver.h> +#include <linux/stringify.h> #include <net/genetlink.h> +#include <scsi/scsi_common.h> +#include <scsi/scsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> #include <target/target_core_backend.h> -#include <target/target_core_backend_configfs.h> #include <linux/target_core_user.h> @@ -166,6 +169,11 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) tcmu_cmd->tcmu_dev = udev; tcmu_cmd->data_length = se_cmd->data_length; + if (se_cmd->se_cmd_flags & SCF_BIDI) { + BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents)); + tcmu_cmd->data_length += se_cmd->t_bidi_data_sg->length; + } + tcmu_cmd->deadline = jiffies + msecs_to_jiffies(TCMU_TIME_OUT); idr_preload(GFP_KERNEL); @@ -224,9 +232,106 @@ static inline size_t head_to_end(size_t head, size_t size) #define UPDATE_HEAD(head, used, size) smp_store_release(&head, ((head % size) + used) % size) +static void alloc_and_scatter_data_area(struct tcmu_dev *udev, + struct scatterlist *data_sg, unsigned int data_nents, + struct iovec **iov, int *iov_cnt, bool copy_data) +{ + int i; + void *from, *to; + size_t copy_bytes; + struct scatterlist *sg; + + for_each_sg(data_sg, sg, data_nents, i) { + copy_bytes = min_t(size_t, sg->length, + head_to_end(udev->data_head, udev->data_size)); + from = kmap_atomic(sg_page(sg)) + sg->offset; + to = (void *) udev->mb_addr + udev->data_off + udev->data_head; + + if (copy_data) { + memcpy(to, from, copy_bytes); + tcmu_flush_dcache_range(to, copy_bytes); + } + + /* Even iov_base is relative to mb_addr */ + (*iov)->iov_len = copy_bytes; + (*iov)->iov_base = (void __user *) udev->data_off + + udev->data_head; + (*iov_cnt)++; + (*iov)++; + + UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size); + + /* Uh oh, we wrapped the buffer. Must split sg across 2 iovs. */ + if (sg->length != copy_bytes) { + void *from_skip = from + copy_bytes; + + copy_bytes = sg->length - copy_bytes; + + (*iov)->iov_len = copy_bytes; + (*iov)->iov_base = (void __user *) udev->data_off + + udev->data_head; + + if (copy_data) { + to = (void *) udev->mb_addr + + udev->data_off + udev->data_head; + memcpy(to, from_skip, copy_bytes); + tcmu_flush_dcache_range(to, copy_bytes); + } + + (*iov_cnt)++; + (*iov)++; + + UPDATE_HEAD(udev->data_head, + copy_bytes, udev->data_size); + } + + kunmap_atomic(from - sg->offset); + } +} + +static void gather_and_free_data_area(struct tcmu_dev *udev, + struct scatterlist *data_sg, unsigned int data_nents) +{ + int i; + void *from, *to; + size_t copy_bytes; + struct scatterlist *sg; + + /* It'd be easier to look at entry's iovec again, but UAM */ + for_each_sg(data_sg, sg, data_nents, i) { + copy_bytes = min_t(size_t, sg->length, + head_to_end(udev->data_tail, udev->data_size)); + + to = kmap_atomic(sg_page(sg)) + sg->offset; + WARN_ON(sg->length + sg->offset > PAGE_SIZE); + from = (void *) udev->mb_addr + + udev->data_off + udev->data_tail; + tcmu_flush_dcache_range(from, copy_bytes); + memcpy(to, from, copy_bytes); + + UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size); + + /* Uh oh, wrapped the data buffer for this sg's data */ + if (sg->length != copy_bytes) { + void *to_skip = to + copy_bytes; + + from = (void *) udev->mb_addr + + udev->data_off + udev->data_tail; + WARN_ON(udev->data_tail); + copy_bytes = sg->length - copy_bytes; + tcmu_flush_dcache_range(from, copy_bytes); + memcpy(to_skip, from, copy_bytes); + + UPDATE_HEAD(udev->data_tail, + copy_bytes, udev->data_size); + } + kunmap_atomic(to - sg->offset); + } +} + /* - * We can't queue a command until we have space available on the cmd ring *and* space - * space avail on the data ring. + * We can't queue a command until we have space available on the cmd ring *and* + * space available on the data ring. * * Called with ring lock held. */ @@ -274,12 +379,11 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) size_t base_command_size, command_size; struct tcmu_mailbox *mb; struct tcmu_cmd_entry *entry; - int i; - struct scatterlist *sg; struct iovec *iov; - int iov_cnt = 0; + int iov_cnt; uint32_t cmd_head; uint64_t cdb_off; + bool copy_to_data_area; if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags)) return -EINVAL; @@ -292,7 +396,8 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) * b/c size == offsetof one-past-element. */ base_command_size = max(offsetof(struct tcmu_cmd_entry, - req.iov[se_cmd->t_data_nents + 2]), + req.iov[se_cmd->t_bidi_data_nents + + se_cmd->t_data_nents + 2]), sizeof(struct tcmu_cmd_entry)); command_size = base_command_size + round_up(scsi_command_size(se_cmd->t_task_cdb), TCMU_OP_ALIGN_SIZE); @@ -360,53 +465,20 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) * Fix up iovecs, and handle if allocation in data ring wrapped. */ iov = &entry->req.iov[0]; - for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) { - size_t copy_bytes = min((size_t)sg->length, - head_to_end(udev->data_head, udev->data_size)); - void *from = kmap_atomic(sg_page(sg)) + sg->offset; - void *to = (void *) mb + udev->data_off + udev->data_head; - - if (tcmu_cmd->se_cmd->data_direction == DMA_TO_DEVICE) { - memcpy(to, from, copy_bytes); - tcmu_flush_dcache_range(to, copy_bytes); - } - - /* Even iov_base is relative to mb_addr */ - iov->iov_len = copy_bytes; - iov->iov_base = (void __user *) udev->data_off + - udev->data_head; - iov_cnt++; - iov++; - - UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size); - - /* Uh oh, we wrapped the buffer. Must split sg across 2 iovs. */ - if (sg->length != copy_bytes) { - from += copy_bytes; - copy_bytes = sg->length - copy_bytes; - - iov->iov_len = copy_bytes; - iov->iov_base = (void __user *) udev->data_off + - udev->data_head; - - if (se_cmd->data_direction == DMA_TO_DEVICE) { - to = (void *) mb + udev->data_off + udev->data_head; - memcpy(to, from, copy_bytes); - tcmu_flush_dcache_range(to, copy_bytes); - } - - iov_cnt++; - iov++; - - UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size); - } - - kunmap_atomic(from); - } + iov_cnt = 0; + copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE + || se_cmd->se_cmd_flags & SCF_BIDI); + alloc_and_scatter_data_area(udev, se_cmd->t_data_sg, + se_cmd->t_data_nents, &iov, &iov_cnt, copy_to_data_area); entry->req.iov_cnt = iov_cnt; - entry->req.iov_bidi_cnt = 0; entry->req.iov_dif_cnt = 0; + /* Handle BIDI commands */ + iov_cnt = 0; + alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg, + se_cmd->t_bidi_data_nents, &iov, &iov_cnt, false); + entry->req.iov_bidi_cnt = iov_cnt; + /* All offsets relative to mb_addr, not start of entry! */ cdb_off = CMDR_OFF + cmd_head + base_command_size; memcpy((void *) mb + cdb_off, se_cmd->t_task_cdb, scsi_command_size(se_cmd->t_task_cdb)); @@ -467,59 +539,28 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry * UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size); pr_warn("TCMU: Userspace set UNKNOWN_OP flag on se_cmd %p\n", cmd->se_cmd); - transport_generic_request_failure(cmd->se_cmd, - TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE); - cmd->se_cmd = NULL; - kmem_cache_free(tcmu_cmd_cache, cmd); - return; - } - - if (entry->rsp.scsi_status == SAM_STAT_CHECK_CONDITION) { + entry->rsp.scsi_status = SAM_STAT_CHECK_CONDITION; + } else if (entry->rsp.scsi_status == SAM_STAT_CHECK_CONDITION) { memcpy(se_cmd->sense_buffer, entry->rsp.sense_buffer, se_cmd->scsi_sense_length); UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size); - } - else if (se_cmd->data_direction == DMA_FROM_DEVICE) { - struct scatterlist *sg; - int i; - - /* It'd be easier to look at entry's iovec again, but UAM */ - for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) { - size_t copy_bytes; - void *to; - void *from; - - copy_bytes = min((size_t)sg->length, - head_to_end(udev->data_tail, udev->data_size)); - - to = kmap_atomic(sg_page(sg)) + sg->offset; - WARN_ON(sg->length + sg->offset > PAGE_SIZE); - from = (void *) udev->mb_addr + udev->data_off + udev->data_tail; - tcmu_flush_dcache_range(from, copy_bytes); - memcpy(to, from, copy_bytes); - - UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size); - - /* Uh oh, wrapped the data buffer for this sg's data */ - if (sg->length != copy_bytes) { - from = (void *) udev->mb_addr + udev->data_off + udev->data_tail; - WARN_ON(udev->data_tail); - to += copy_bytes; - copy_bytes = sg->length - copy_bytes; - tcmu_flush_dcache_range(from, copy_bytes); - memcpy(to, from, copy_bytes); - - UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size); - } - - kunmap_atomic(to); - } - + } else if (se_cmd->se_cmd_flags & SCF_BIDI) { + /* Discard data_out buffer */ + UPDATE_HEAD(udev->data_tail, + (size_t)se_cmd->t_data_sg->length, udev->data_size); + + /* Get Data-In buffer */ + gather_and_free_data_area(udev, + se_cmd->t_bidi_data_sg, se_cmd->t_bidi_data_nents); + } else if (se_cmd->data_direction == DMA_FROM_DEVICE) { + gather_and_free_data_area(udev, + se_cmd->t_data_sg, se_cmd->t_data_nents); } else if (se_cmd->data_direction == DMA_TO_DEVICE) { UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size); - } else { - pr_warn("TCMU: data direction was %d!\n", se_cmd->data_direction); + } else if (se_cmd->data_direction != DMA_NONE) { + pr_warn("TCMU: data direction was %d!\n", + se_cmd->data_direction); } target_complete_cmd(cmd->se_cmd, entry->rsp.scsi_status); @@ -531,7 +572,6 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry * static unsigned int tcmu_handle_completions(struct tcmu_dev *udev) { struct tcmu_mailbox *mb; - LIST_HEAD(cpl_cmds); unsigned long flags; int handled = 0; @@ -598,7 +638,7 @@ static int tcmu_check_expired_cmd(int id, void *p, void *data) if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) return 0; - if (!time_after(cmd->deadline, jiffies)) + if (!time_after(jiffies, cmd->deadline)) return 0; set_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags); @@ -859,7 +899,7 @@ static int tcmu_configure_device(struct se_device *dev) WARN_ON(!PAGE_ALIGNED(udev->data_off)); WARN_ON(udev->data_size % PAGE_SIZE); - info->version = xstr(TCMU_MAILBOX_VERSION); + info->version = __stringify(TCMU_MAILBOX_VERSION); info->mem[0].name = "tcm-user command & data buffer"; info->mem[0].addr = (phys_addr_t) udev->mb_addr; @@ -908,6 +948,14 @@ static int tcmu_check_pending_cmd(int id, void *p, void *data) return -EINVAL; } +static void tcmu_dev_call_rcu(struct rcu_head *p) +{ + struct se_device *dev = container_of(p, struct se_device, rcu_head); + struct tcmu_dev *udev = TCMU_DEV(dev); + + kfree(udev); +} + static void tcmu_free_device(struct se_device *dev) { struct tcmu_dev *udev = TCMU_DEV(dev); @@ -933,8 +981,7 @@ static void tcmu_free_device(struct se_device *dev) kfree(udev->uio_info.name); kfree(udev->name); } - - kfree(udev); + call_rcu(&dev->rcu_head, tcmu_dev_call_rcu); } enum { @@ -1052,30 +1099,8 @@ tcmu_parse_cdb(struct se_cmd *cmd) return passthrough_parse_cdb(cmd, tcmu_pass_op); } -DEF_TB_DEV_ATTRIB_RO(tcmu, hw_pi_prot_type); -TB_DEV_ATTR_RO(tcmu, hw_pi_prot_type); - -DEF_TB_DEV_ATTRIB_RO(tcmu, hw_block_size); -TB_DEV_ATTR_RO(tcmu, hw_block_size); - -DEF_TB_DEV_ATTRIB_RO(tcmu, hw_max_sectors); -TB_DEV_ATTR_RO(tcmu, hw_max_sectors); - -DEF_TB_DEV_ATTRIB_RO(tcmu, hw_queue_depth); -TB_DEV_ATTR_RO(tcmu, hw_queue_depth); - -static struct configfs_attribute *tcmu_backend_dev_attrs[] = { - &tcmu_dev_attrib_hw_pi_prot_type.attr, - &tcmu_dev_attrib_hw_block_size.attr, - &tcmu_dev_attrib_hw_max_sectors.attr, - &tcmu_dev_attrib_hw_queue_depth.attr, - NULL, -}; - -static struct se_subsystem_api tcmu_template = { +static const struct target_backend_ops tcmu_ops = { .name = "user", - .inquiry_prod = "USER", - .inquiry_rev = TCMU_VERSION, .owner = THIS_MODULE, .transport_flags = TRANSPORT_FLAG_PASSTHROUGH, .attach_hba = tcmu_attach_hba, @@ -1088,11 +1113,11 @@ static struct se_subsystem_api tcmu_template = { .show_configfs_dev_params = tcmu_show_configfs_dev_params, .get_device_type = sbc_get_device_type, .get_blocks = tcmu_get_blocks, + .tb_dev_attrib_attrs = passthrough_attrib_attrs, }; static int __init tcmu_module_init(void) { - struct target_backend_cits *tbc = &tcmu_template.tb_cits; int ret; BUILD_BUG_ON((sizeof(struct tcmu_cmd_entry) % TCMU_OP_ALIGN_SIZE) != 0); @@ -1115,10 +1140,7 @@ static int __init tcmu_module_init(void) goto out_unreg_device; } - target_core_setup_sub_cits(&tcmu_template); - tbc->tb_dev_attrib_cit.ct_attrs = tcmu_backend_dev_attrs; - - ret = transport_subsystem_register(&tcmu_template); + ret = transport_backend_register(&tcmu_ops); if (ret) goto out_unreg_genl; @@ -1136,7 +1158,7 @@ out_free_cache: static void __exit tcmu_module_exit(void) { - transport_subsystem_release(&tcmu_template); + target_backend_unregister(&tcmu_ops); genl_unregister_family(&tcmu_genl_family); root_device_unregister(tcmu_root_device); kmem_cache_destroy(tcmu_cmd_cache); diff --git a/kernel/drivers/target/target_core_xcopy.c b/kernel/drivers/target/target_core_xcopy.c index 8fd680ac9..47fe94ee1 100644 --- a/kernel/drivers/target/target_core_xcopy.c +++ b/kernel/drivers/target/target_core_xcopy.c @@ -25,14 +25,12 @@ #include <linux/spinlock.h> #include <linux/list.h> #include <linux/configfs.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_proto.h> #include <asm/unaligned.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> #include "target_core_internal.h" #include "target_core_pr.h" @@ -349,8 +347,7 @@ struct xcopy_pt_cmd { unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER]; }; -static struct se_port xcopy_pt_port; -static struct se_portal_group xcopy_pt_tpg; +struct se_portal_group xcopy_pt_tpg; static struct se_session xcopy_pt_sess; static struct se_node_acl xcopy_pt_nacl; @@ -359,11 +356,6 @@ static char *xcopy_pt_get_fabric_name(void) return "xcopy-pt"; } -static u32 xcopy_pt_get_tag(struct se_cmd *se_cmd) -{ - return 0; -} - static int xcopy_pt_get_cmd_state(struct se_cmd *se_cmd) { return 0; @@ -424,7 +416,6 @@ static int xcopy_pt_queue_status(struct se_cmd *se_cmd) static const struct target_core_fabric_ops xcopy_pt_tfo = { .get_fabric_name = xcopy_pt_get_fabric_name, - .get_task_tag = xcopy_pt_get_tag, .get_cmd_state = xcopy_pt_get_cmd_state, .release_cmd = xcopy_pt_release_cmd, .check_stop_free = xcopy_pt_check_stop_free, @@ -446,17 +437,11 @@ int target_xcopy_setup_pt(void) return -ENOMEM; } - memset(&xcopy_pt_port, 0, sizeof(struct se_port)); - INIT_LIST_HEAD(&xcopy_pt_port.sep_alua_list); - INIT_LIST_HEAD(&xcopy_pt_port.sep_list); - mutex_init(&xcopy_pt_port.sep_tg_pt_md_mutex); - memset(&xcopy_pt_tpg, 0, sizeof(struct se_portal_group)); INIT_LIST_HEAD(&xcopy_pt_tpg.se_tpg_node); INIT_LIST_HEAD(&xcopy_pt_tpg.acl_node_list); INIT_LIST_HEAD(&xcopy_pt_tpg.tpg_sess_list); - xcopy_pt_port.sep_tpg = &xcopy_pt_tpg; xcopy_pt_tpg.se_tpg_tfo = &xcopy_pt_tfo; memset(&xcopy_pt_nacl, 0, sizeof(struct se_node_acl)); @@ -465,6 +450,8 @@ int target_xcopy_setup_pt(void) memset(&xcopy_pt_sess, 0, sizeof(struct se_session)); INIT_LIST_HEAD(&xcopy_pt_sess.sess_list); INIT_LIST_HEAD(&xcopy_pt_sess.sess_acl_list); + INIT_LIST_HEAD(&xcopy_pt_sess.sess_cmd_list); + spin_lock_init(&xcopy_pt_sess.sess_cmd_lock); xcopy_pt_nacl.se_tpg = &xcopy_pt_tpg; xcopy_pt_nacl.nacl_sess = &xcopy_pt_sess; @@ -497,10 +484,6 @@ static void target_xcopy_setup_pt_port( */ if (remote_port) { xpt_cmd->remote_port = remote_port; - pt_cmd->se_lun->lun_sep = &xcopy_pt_port; - pr_debug("Setup emulated remote DEST xcopy_pt_port: %p to" - " cmd->se_lun->lun_sep for X-COPY data PUSH\n", - pt_cmd->se_lun->lun_sep); } else { pt_cmd->se_lun = ec_cmd->se_lun; pt_cmd->se_dev = ec_cmd->se_dev; @@ -520,10 +503,6 @@ static void target_xcopy_setup_pt_port( */ if (remote_port) { xpt_cmd->remote_port = remote_port; - pt_cmd->se_lun->lun_sep = &xcopy_pt_port; - pr_debug("Setup emulated remote SRC xcopy_pt_port: %p to" - " cmd->se_lun->lun_sep for X-COPY data PULL\n", - pt_cmd->se_lun->lun_sep); } else { pt_cmd->se_lun = ec_cmd->se_lun; pt_cmd->se_dev = ec_cmd->se_dev; @@ -575,6 +554,7 @@ static int target_xcopy_setup_pt_cmd( xpt_cmd->xcopy_op = xop; target_xcopy_setup_pt_port(xpt_cmd, xop, remote_port); + cmd->tag = 0; sense_rc = target_setup_cmd_from_cdb(cmd, cdb); if (sense_rc) { ret = -EINVAL; @@ -666,7 +646,7 @@ static int target_xcopy_read_source( pr_debug("XCOPY: Built READ_16: LBA: %llu Sectors: %u Length: %u\n", (unsigned long long)src_lba, src_sectors, length); - transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length, + transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, &xcopy_pt_sess, length, DMA_FROM_DEVICE, 0, &xpt_cmd->sense_buffer[0]); xop->src_pt_cmd = xpt_cmd; @@ -726,7 +706,7 @@ static int target_xcopy_write_destination( pr_debug("XCOPY: Built WRITE_16: LBA: %llu Sectors: %u Length: %u\n", (unsigned long long)dst_lba, dst_sectors, length); - transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length, + transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, &xcopy_pt_sess, length, DMA_TO_DEVICE, 0, &xpt_cmd->sense_buffer[0]); xop->dst_pt_cmd = xpt_cmd; diff --git a/kernel/drivers/target/tcm_fc/tcm_fc.h b/kernel/drivers/target/tcm_fc/tcm_fc.h index 881deb3d4..39909dade 100644 --- a/kernel/drivers/target/tcm_fc/tcm_fc.h +++ b/kernel/drivers/target/tcm_fc/tcm_fc.h @@ -80,8 +80,8 @@ struct ft_node_auth { * Node ACL for FC remote port session. */ struct ft_node_acl { - struct ft_node_auth node_auth; struct se_node_acl se_node_acl; + struct ft_node_auth node_auth; }; struct ft_lun { @@ -157,7 +157,6 @@ int ft_queue_status(struct se_cmd *); int ft_queue_data_in(struct se_cmd *); int ft_write_pending(struct se_cmd *); int ft_write_pending_status(struct se_cmd *); -u32 ft_get_task_tag(struct se_cmd *); int ft_get_cmd_state(struct se_cmd *); void ft_queue_tm_resp(struct se_cmd *); void ft_aborted_task(struct se_cmd *); diff --git a/kernel/drivers/target/tcm_fc/tfc_cmd.c b/kernel/drivers/target/tcm_fc/tfc_cmd.c index edcafa449..064d6dfb5 100644 --- a/kernel/drivers/target/tcm_fc/tfc_cmd.c +++ b/kernel/drivers/target/tcm_fc/tfc_cmd.c @@ -30,18 +30,12 @@ #include <linux/hash.h> #include <linux/percpu_ida.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_device.h> -#include <scsi/scsi_cmnd.h> #include <scsi/scsi_tcq.h> #include <scsi/libfc.h> #include <scsi/fc_encode.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "tcm_fc.h" @@ -247,15 +241,6 @@ int ft_write_pending(struct se_cmd *se_cmd) return 0; } -u32 ft_get_task_tag(struct se_cmd *se_cmd) -{ - struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd); - - if (cmd->aborted) - return ~0; - return fc_seq_exch(cmd->seq)->rxid; -} - int ft_get_cmd_state(struct se_cmd *se_cmd) { return 0; @@ -269,7 +254,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg) struct ft_cmd *cmd = arg; struct fc_frame_header *fh; - if (unlikely(IS_ERR(fp))) { + if (IS_ERR(fp)) { /* XXX need to find cmd if queued */ cmd->seq = NULL; cmd->aborted = true; @@ -568,6 +553,7 @@ static void ft_send_work(struct work_struct *work) } fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd); + cmd->se_cmd.tag = fc_seq_exch(cmd->seq)->rxid; /* * Use a single se_cmd->cmd_kref as we expect to release se_cmd * directly from ft_check_stop_free callback in response path. diff --git a/kernel/drivers/target/tcm_fc/tfc_conf.c b/kernel/drivers/target/tcm_fc/tfc_conf.c index 65dce1345..85aeaa0ad 100644 --- a/kernel/drivers/target/tcm_fc/tfc_conf.c +++ b/kernel/drivers/target/tcm_fc/tfc_conf.c @@ -34,22 +34,13 @@ #include <linux/kernel.h> #include <linux/ctype.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_device.h> -#include <scsi/scsi_cmnd.h> #include <scsi/libfc.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_fabric_configfs.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "tcm_fc.h" -static const struct target_core_fabric_ops ft_fabric_ops; - static LIST_HEAD(ft_wwn_list); DEFINE_MUTEX(ft_lport_lock); @@ -138,55 +129,51 @@ static ssize_t ft_wwn_store(void *arg, const char *buf, size_t len) * ACL auth ops. */ -static ssize_t ft_nacl_show_port_name( - struct se_node_acl *se_nacl, - char *page) +static ssize_t ft_nacl_port_name_show(struct config_item *item, char *page) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_show(&acl->node_auth.port_name, page); } -static ssize_t ft_nacl_store_port_name( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t ft_nacl_port_name_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_store(&acl->node_auth.port_name, page, count); } -TF_NACL_BASE_ATTR(ft, port_name, S_IRUGO | S_IWUSR); - -static ssize_t ft_nacl_show_node_name( - struct se_node_acl *se_nacl, - char *page) +static ssize_t ft_nacl_node_name_show(struct config_item *item, + char *page) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_show(&acl->node_auth.node_name, page); } -static ssize_t ft_nacl_store_node_name( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t ft_nacl_node_name_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_store(&acl->node_auth.node_name, page, count); } -TF_NACL_BASE_ATTR(ft, node_name, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(ft_nacl_, node_name); +CONFIGFS_ATTR(ft_nacl_, port_name); static struct configfs_attribute *ft_nacl_base_attrs[] = { - &ft_nacl_port_name.attr, - &ft_nacl_node_name.attr, + &ft_nacl_attr_port_name, + &ft_nacl_attr_node_name, NULL, }; @@ -198,48 +185,17 @@ static struct configfs_attribute *ft_nacl_base_attrs[] = { * Add ACL for an initiator. The ACL is named arbitrarily. * The port_name and/or node_name are attributes. */ -static struct se_node_acl *ft_add_acl( - struct se_portal_group *se_tpg, - struct config_group *group, - const char *name) +static int ft_init_nodeacl(struct se_node_acl *nacl, const char *name) { - struct ft_node_acl *acl; - struct ft_tpg *tpg; + struct ft_node_acl *acl = + container_of(nacl, struct ft_node_acl, se_node_acl); u64 wwpn; - u32 q_depth; - - pr_debug("add acl %s\n", name); - tpg = container_of(se_tpg, struct ft_tpg, se_tpg); if (ft_parse_wwn(name, &wwpn, 1) < 0) - return ERR_PTR(-EINVAL); + return -EINVAL; - acl = kzalloc(sizeof(struct ft_node_acl), GFP_KERNEL); - if (!acl) - return ERR_PTR(-ENOMEM); acl->node_auth.port_name = wwpn; - - q_depth = 32; /* XXX bogus default - get from tpg? */ - return core_tpg_add_initiator_node_acl(&tpg->se_tpg, - &acl->se_node_acl, name, q_depth); -} - -static void ft_del_acl(struct se_node_acl *se_acl) -{ - struct se_portal_group *se_tpg = se_acl->se_tpg; - struct ft_tpg *tpg; - struct ft_node_acl *acl = container_of(se_acl, - struct ft_node_acl, se_node_acl); - - pr_debug("del acl %s\n", - config_item_name(&se_acl->acl_group.cg_item)); - - tpg = container_of(se_tpg, struct ft_tpg, se_tpg); - pr_debug("del acl %p se_acl %p tpg %p se_tpg %p\n", - acl, se_acl, tpg, &tpg->se_tpg); - - core_tpg_del_initiator_node_acl(&tpg->se_tpg, se_acl, 1); - kfree(acl); + return 0; } struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata) @@ -249,7 +205,7 @@ struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata) struct se_portal_group *se_tpg = &tpg->se_tpg; struct se_node_acl *se_acl; - spin_lock_irq(&se_tpg->acl_node_lock); + mutex_lock(&se_tpg->acl_node_mutex); list_for_each_entry(se_acl, &se_tpg->acl_node_list, acl_list) { acl = container_of(se_acl, struct ft_node_acl, se_node_acl); pr_debug("acl %p port_name %llx\n", @@ -263,33 +219,10 @@ struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata) break; } } - spin_unlock_irq(&se_tpg->acl_node_lock); + mutex_unlock(&se_tpg->acl_node_mutex); return found; } -static struct se_node_acl *ft_tpg_alloc_fabric_acl(struct se_portal_group *se_tpg) -{ - struct ft_node_acl *acl; - - acl = kzalloc(sizeof(*acl), GFP_KERNEL); - if (!acl) { - pr_err("Unable to allocate struct ft_node_acl\n"); - return NULL; - } - pr_debug("acl %p\n", acl); - return &acl->se_node_acl; -} - -static void ft_tpg_release_fabric_acl(struct se_portal_group *se_tpg, - struct se_node_acl *se_acl) -{ - struct ft_node_acl *acl = container_of(se_acl, - struct ft_node_acl, se_node_acl); - - pr_debug("acl %p\n", acl); - kfree(acl); -} - /* * local_port port_group (tpg) ops. */ @@ -337,8 +270,7 @@ static struct se_portal_group *ft_add_tpg( return NULL; } - ret = core_tpg_register(&ft_fabric_ops, wwn, &tpg->se_tpg, - tpg, TRANSPORT_TPG_TYPE_NORMAL); + ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); if (ret < 0) { destroy_workqueue(wq); kfree(tpg); @@ -448,21 +380,24 @@ static void ft_del_wwn(struct se_wwn *wwn) kfree(ft_wwn); } -static ssize_t ft_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t ft_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "TCM FC " FT_VERSION " on %s/%s on " ""UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); } -TF_WWN_ATTR_RO(ft, version); +CONFIGFS_ATTR_RO(ft_wwn_, version); static struct configfs_attribute *ft_wwn_attrs[] = { - &ft_wwn_version.attr, + &ft_wwn_attr_version, NULL, }; +static inline struct ft_tpg *ft_tpg(struct se_portal_group *se_tpg) +{ + return container_of(se_tpg, struct ft_tpg, se_tpg); +} + static char *ft_get_fabric_name(void) { return "fc"; @@ -470,25 +405,16 @@ static char *ft_get_fabric_name(void) static char *ft_get_fabric_wwn(struct se_portal_group *se_tpg) { - struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->lport_wwn->name; + return ft_tpg(se_tpg)->lport_wwn->name; } static u16 ft_get_tag(struct se_portal_group *se_tpg) { - struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr; - /* * This tag is used when forming SCSI Name identifier in EVPD=1 0x83 * to represent the SCSI Target Port. */ - return tpg->index; -} - -static u32 ft_get_default_depth(struct se_portal_group *se_tpg) -{ - return 1; + return ft_tpg(se_tpg)->index; } static int ft_check_false(struct se_portal_group *se_tpg) @@ -502,28 +428,20 @@ static void ft_set_default_node_attr(struct se_node_acl *se_nacl) static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg) { - struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr; - - return tpg->index; + return ft_tpg(se_tpg)->index; } static const struct target_core_fabric_ops ft_fabric_ops = { .module = THIS_MODULE, .name = "fc", + .node_acl_size = sizeof(struct ft_node_acl), .get_fabric_name = ft_get_fabric_name, - .get_fabric_proto_ident = fc_get_fabric_proto_ident, .tpg_get_wwn = ft_get_fabric_wwn, .tpg_get_tag = ft_get_tag, - .tpg_get_default_depth = ft_get_default_depth, - .tpg_get_pr_transport_id = fc_get_pr_transport_id, - .tpg_get_pr_transport_id_len = fc_get_pr_transport_id_len, - .tpg_parse_pr_out_transport_id = fc_parse_pr_out_transport_id, .tpg_check_demo_mode = ft_check_false, .tpg_check_demo_mode_cache = ft_check_false, .tpg_check_demo_mode_write_protect = ft_check_false, .tpg_check_prod_mode_write_protect = ft_check_false, - .tpg_alloc_fabric_acl = ft_tpg_alloc_fabric_acl, - .tpg_release_fabric_acl = ft_tpg_release_fabric_acl, .tpg_get_inst_index = ft_tpg_get_inst_index, .check_stop_free = ft_check_stop_free, .release_cmd = ft_release_cmd, @@ -534,7 +452,6 @@ static const struct target_core_fabric_ops ft_fabric_ops = { .write_pending = ft_write_pending, .write_pending_status = ft_write_pending_status, .set_default_node_attributes = ft_set_default_node_attr, - .get_task_tag = ft_get_task_tag, .get_cmd_state = ft_get_cmd_state, .queue_data_in = ft_queue_data_in, .queue_status = ft_queue_status, @@ -548,12 +465,7 @@ static const struct target_core_fabric_ops ft_fabric_ops = { .fabric_drop_wwn = &ft_del_wwn, .fabric_make_tpg = &ft_add_tpg, .fabric_drop_tpg = &ft_del_tpg, - .fabric_post_link = NULL, - .fabric_pre_unlink = NULL, - .fabric_make_np = NULL, - .fabric_drop_np = NULL, - .fabric_make_nodeacl = &ft_add_acl, - .fabric_drop_nodeacl = &ft_del_acl, + .fabric_init_nodeacl = &ft_init_nodeacl, .tfc_wwn_attrs = ft_wwn_attrs, .tfc_tpg_nacl_base_attrs = ft_nacl_base_attrs, diff --git a/kernel/drivers/target/tcm_fc/tfc_io.c b/kernel/drivers/target/tcm_fc/tfc_io.c index 583e755d8..847c1aa6f 100644 --- a/kernel/drivers/target/tcm_fc/tfc_io.c +++ b/kernel/drivers/target/tcm_fc/tfc_io.c @@ -39,17 +39,11 @@ #include <linux/hash.h> #include <linux/ratelimit.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_device.h> -#include <scsi/scsi_cmnd.h> #include <scsi/libfc.h> #include <scsi/fc_encode.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "tcm_fc.h" diff --git a/kernel/drivers/target/tcm_fc/tfc_sess.c b/kernel/drivers/target/tcm_fc/tfc_sess.c index ccee7e332..7b934eac9 100644 --- a/kernel/drivers/target/tcm_fc/tfc_sess.c +++ b/kernel/drivers/target/tcm_fc/tfc_sess.c @@ -32,16 +32,10 @@ #include <linux/rculist.h> #include <linux/kref.h> #include <asm/unaligned.h> -#include <scsi/scsi.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_device.h> -#include <scsi/scsi_cmnd.h> #include <scsi/libfc.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <target/target_core_configfs.h> -#include <target/configfs_macros.h> #include "tcm_fc.h" |