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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/scsi/lpfc/lpfc_init.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--kernel/drivers/scsi/lpfc/lpfc_init.c11477
1 files changed, 11477 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/lpfc/lpfc_init.c b/kernel/drivers/scsi/lpfc/lpfc_init.c
new file mode 100644
index 000000000..e8c8c1ecc
--- /dev/null
+++ b/kernel/drivers/scsi/lpfc/lpfc_init.c
@@ -0,0 +1,11477 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * Portions Copyright (C) 2004-2005 Christoph Hellwig *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *******************************************************************/
+
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/idr.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kthread.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/ctype.h>
+#include <linux/aer.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/miscdevice.h>
+#include <linux/percpu.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
+
+#include "lpfc_hw4.h"
+#include "lpfc_hw.h"
+#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc_nl.h"
+#include "lpfc_disc.h"
+#include "lpfc_scsi.h"
+#include "lpfc.h"
+#include "lpfc_logmsg.h"
+#include "lpfc_crtn.h"
+#include "lpfc_vport.h"
+#include "lpfc_version.h"
+
+char *_dump_buf_data;
+unsigned long _dump_buf_data_order;
+char *_dump_buf_dif;
+unsigned long _dump_buf_dif_order;
+spinlock_t _dump_buf_lock;
+
+/* Used when mapping IRQ vectors in a driver centric manner */
+uint16_t *lpfc_used_cpu;
+uint32_t lpfc_present_cpu;
+
+static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
+static int lpfc_post_rcv_buf(struct lpfc_hba *);
+static int lpfc_sli4_queue_verify(struct lpfc_hba *);
+static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
+static int lpfc_setup_endian_order(struct lpfc_hba *);
+static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
+static void lpfc_free_els_sgl_list(struct lpfc_hba *);
+static void lpfc_init_sgl_list(struct lpfc_hba *);
+static int lpfc_init_active_sgl_array(struct lpfc_hba *);
+static void lpfc_free_active_sgl(struct lpfc_hba *);
+static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
+static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
+static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
+static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
+static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
+static void lpfc_sli4_disable_intr(struct lpfc_hba *);
+static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
+static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
+
+static struct scsi_transport_template *lpfc_transport_template = NULL;
+static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
+static DEFINE_IDR(lpfc_hba_index);
+
+/**
+ * lpfc_config_port_prep - Perform lpfc initialization prior to config port
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
+ * mailbox command. It retrieves the revision information from the HBA and
+ * collects the Vital Product Data (VPD) about the HBA for preparing the
+ * configuration of the HBA.
+ *
+ * Return codes:
+ * 0 - success.
+ * -ERESTART - requests the SLI layer to reset the HBA and try again.
+ * Any other value - indicates an error.
+ **/
+int
+lpfc_config_port_prep(struct lpfc_hba *phba)
+{
+ lpfc_vpd_t *vp = &phba->vpd;
+ int i = 0, rc;
+ LPFC_MBOXQ_t *pmb;
+ MAILBOX_t *mb;
+ char *lpfc_vpd_data = NULL;
+ uint16_t offset = 0;
+ static char licensed[56] =
+ "key unlock for use with gnu public licensed code only\0";
+ static int init_key = 1;
+
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return -ENOMEM;
+ }
+
+ mb = &pmb->u.mb;
+ phba->link_state = LPFC_INIT_MBX_CMDS;
+
+ if (lpfc_is_LC_HBA(phba->pcidev->device)) {
+ if (init_key) {
+ uint32_t *ptext = (uint32_t *) licensed;
+
+ for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
+ *ptext = cpu_to_be32(*ptext);
+ init_key = 0;
+ }
+
+ lpfc_read_nv(phba, pmb);
+ memset((char*)mb->un.varRDnvp.rsvd3, 0,
+ sizeof (mb->un.varRDnvp.rsvd3));
+ memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
+ sizeof (licensed));
+
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "0324 Config Port initialization "
+ "error, mbxCmd x%x READ_NVPARM, "
+ "mbxStatus x%x\n",
+ mb->mbxCommand, mb->mbxStatus);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -ERESTART;
+ }
+ memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
+ sizeof(phba->wwnn));
+ memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
+ sizeof(phba->wwpn));
+ }
+
+ phba->sli3_options = 0x0;
+
+ /* Setup and issue mailbox READ REV command */
+ lpfc_read_rev(phba, pmb);
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0439 Adapter failed to init, mbxCmd x%x "
+ "READ_REV, mbxStatus x%x\n",
+ mb->mbxCommand, mb->mbxStatus);
+ mempool_free( pmb, phba->mbox_mem_pool);
+ return -ERESTART;
+ }
+
+
+ /*
+ * The value of rr must be 1 since the driver set the cv field to 1.
+ * This setting requires the FW to set all revision fields.
+ */
+ if (mb->un.varRdRev.rr == 0) {
+ vp->rev.rBit = 0;
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0440 Adapter failed to init, READ_REV has "
+ "missing revision information.\n");
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -ERESTART;
+ }
+
+ if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EINVAL;
+ }
+
+ /* Save information as VPD data */
+ vp->rev.rBit = 1;
+ memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
+ vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
+ memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
+ vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
+ memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
+ vp->rev.biuRev = mb->un.varRdRev.biuRev;
+ vp->rev.smRev = mb->un.varRdRev.smRev;
+ vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
+ vp->rev.endecRev = mb->un.varRdRev.endecRev;
+ vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
+ vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
+ vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
+ vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
+ vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
+ vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
+
+ /* If the sli feature level is less then 9, we must
+ * tear down all RPIs and VPIs on link down if NPIV
+ * is enabled.
+ */
+ if (vp->rev.feaLevelHigh < 9)
+ phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
+
+ if (lpfc_is_LC_HBA(phba->pcidev->device))
+ memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
+ sizeof (phba->RandomData));
+
+ /* Get adapter VPD information */
+ lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
+ if (!lpfc_vpd_data)
+ goto out_free_mbox;
+ do {
+ lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0441 VPD not present on adapter, "
+ "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
+ mb->mbxCommand, mb->mbxStatus);
+ mb->un.varDmp.word_cnt = 0;
+ }
+ /* dump mem may return a zero when finished or we got a
+ * mailbox error, either way we are done.
+ */
+ if (mb->un.varDmp.word_cnt == 0)
+ break;
+ if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
+ mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
+ lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
+ lpfc_vpd_data + offset,
+ mb->un.varDmp.word_cnt);
+ offset += mb->un.varDmp.word_cnt;
+ } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
+ lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
+
+ kfree(lpfc_vpd_data);
+out_free_mbox:
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return 0;
+}
+
+/**
+ * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
+ * @phba: pointer to lpfc hba data structure.
+ * @pmboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This is the completion handler for driver's configuring asynchronous event
+ * mailbox command to the device. If the mailbox command returns successfully,
+ * it will set internal async event support flag to 1; otherwise, it will
+ * set internal async event support flag to 0.
+ **/
+static void
+lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
+{
+ if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
+ phba->temp_sensor_support = 1;
+ else
+ phba->temp_sensor_support = 0;
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
+ * @phba: pointer to lpfc hba data structure.
+ * @pmboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This is the completion handler for dump mailbox command for getting
+ * wake up parameters. When this command complete, the response contain
+ * Option rom version of the HBA. This function translate the version number
+ * into a human readable string and store it in OptionROMVersion.
+ **/
+static void
+lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
+{
+ struct prog_id *prg;
+ uint32_t prog_id_word;
+ char dist = ' ';
+ /* character array used for decoding dist type. */
+ char dist_char[] = "nabx";
+
+ if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ return;
+ }
+
+ prg = (struct prog_id *) &prog_id_word;
+
+ /* word 7 contain option rom version */
+ prog_id_word = pmboxq->u.mb.un.varWords[7];
+
+ /* Decode the Option rom version word to a readable string */
+ if (prg->dist < 4)
+ dist = dist_char[prg->dist];
+
+ if ((prg->dist == 3) && (prg->num == 0))
+ snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
+ prg->ver, prg->rev, prg->lev);
+ else
+ snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
+ prg->ver, prg->rev, prg->lev,
+ dist, prg->num);
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
+ * cfg_soft_wwnn, cfg_soft_wwpn
+ * @vport: pointer to lpfc vport data structure.
+ *
+ *
+ * Return codes
+ * None.
+ **/
+void
+lpfc_update_vport_wwn(struct lpfc_vport *vport)
+{
+ /* If the soft name exists then update it using the service params */
+ if (vport->phba->cfg_soft_wwnn)
+ u64_to_wwn(vport->phba->cfg_soft_wwnn,
+ vport->fc_sparam.nodeName.u.wwn);
+ if (vport->phba->cfg_soft_wwpn)
+ u64_to_wwn(vport->phba->cfg_soft_wwpn,
+ vport->fc_sparam.portName.u.wwn);
+
+ /*
+ * If the name is empty or there exists a soft name
+ * then copy the service params name, otherwise use the fc name
+ */
+ if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
+ memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
+ sizeof(struct lpfc_name));
+ else
+ memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
+ sizeof(struct lpfc_name));
+
+ if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
+ memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
+ sizeof(struct lpfc_name));
+ else
+ memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
+ sizeof(struct lpfc_name));
+}
+
+/**
+ * lpfc_config_port_post - Perform lpfc initialization after config port
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine will do LPFC initialization after the CONFIG_PORT mailbox
+ * command call. It performs all internal resource and state setups on the
+ * port: post IOCB buffers, enable appropriate host interrupt attentions,
+ * ELS ring timers, etc.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
+int
+lpfc_config_port_post(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ LPFC_MBOXQ_t *pmb;
+ MAILBOX_t *mb;
+ struct lpfc_dmabuf *mp;
+ struct lpfc_sli *psli = &phba->sli;
+ uint32_t status, timeout;
+ int i, j;
+ int rc;
+
+ spin_lock_irq(&phba->hbalock);
+ /*
+ * If the Config port completed correctly the HBA is not
+ * over heated any more.
+ */
+ if (phba->over_temp_state == HBA_OVER_TEMP)
+ phba->over_temp_state = HBA_NORMAL_TEMP;
+ spin_unlock_irq(&phba->hbalock);
+
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return -ENOMEM;
+ }
+ mb = &pmb->u.mb;
+
+ /* Get login parameters for NID. */
+ rc = lpfc_read_sparam(phba, pmb, 0);
+ if (rc) {
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -ENOMEM;
+ }
+
+ pmb->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0448 Adapter failed init, mbxCmd x%x "
+ "READ_SPARM mbxStatus x%x\n",
+ mb->mbxCommand, mb->mbxStatus);
+ phba->link_state = LPFC_HBA_ERROR;
+ mp = (struct lpfc_dmabuf *) pmb->context1;
+ mempool_free(pmb, phba->mbox_mem_pool);
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ return -EIO;
+ }
+
+ mp = (struct lpfc_dmabuf *) pmb->context1;
+
+ memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ pmb->context1 = NULL;
+ lpfc_update_vport_wwn(vport);
+
+ /* Update the fc_host data structures with new wwn. */
+ fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
+ fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
+ fc_host_max_npiv_vports(shost) = phba->max_vpi;
+
+ /* If no serial number in VPD data, use low 6 bytes of WWNN */
+ /* This should be consolidated into parse_vpd ? - mr */
+ if (phba->SerialNumber[0] == 0) {
+ uint8_t *outptr;
+
+ outptr = &vport->fc_nodename.u.s.IEEE[0];
+ for (i = 0; i < 12; i++) {
+ status = *outptr++;
+ j = ((status & 0xf0) >> 4);
+ if (j <= 9)
+ phba->SerialNumber[i] =
+ (char)((uint8_t) 0x30 + (uint8_t) j);
+ else
+ phba->SerialNumber[i] =
+ (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
+ i++;
+ j = (status & 0xf);
+ if (j <= 9)
+ phba->SerialNumber[i] =
+ (char)((uint8_t) 0x30 + (uint8_t) j);
+ else
+ phba->SerialNumber[i] =
+ (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
+ }
+ }
+
+ lpfc_read_config(phba, pmb);
+ pmb->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0453 Adapter failed to init, mbxCmd x%x "
+ "READ_CONFIG, mbxStatus x%x\n",
+ mb->mbxCommand, mb->mbxStatus);
+ phba->link_state = LPFC_HBA_ERROR;
+ mempool_free( pmb, phba->mbox_mem_pool);
+ return -EIO;
+ }
+
+ /* Check if the port is disabled */
+ lpfc_sli_read_link_ste(phba);
+
+ /* Reset the DFT_HBA_Q_DEPTH to the max xri */
+ i = (mb->un.varRdConfig.max_xri + 1);
+ if (phba->cfg_hba_queue_depth > i) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "3359 HBA queue depth changed from %d to %d\n",
+ phba->cfg_hba_queue_depth, i);
+ phba->cfg_hba_queue_depth = i;
+ }
+
+ /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
+ i = (mb->un.varRdConfig.max_xri >> 3);
+ if (phba->pport->cfg_lun_queue_depth > i) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "3360 LUN queue depth changed from %d to %d\n",
+ phba->pport->cfg_lun_queue_depth, i);
+ phba->pport->cfg_lun_queue_depth = i;
+ }
+
+ phba->lmt = mb->un.varRdConfig.lmt;
+
+ /* Get the default values for Model Name and Description */
+ lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
+
+ phba->link_state = LPFC_LINK_DOWN;
+
+ /* Only process IOCBs on ELS ring till hba_state is READY */
+ if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
+ psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
+ if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
+ psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
+ if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
+ psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
+
+ /* Post receive buffers for desired rings */
+ if (phba->sli_rev != 3)
+ lpfc_post_rcv_buf(phba);
+
+ /*
+ * Configure HBA MSI-X attention conditions to messages if MSI-X mode
+ */
+ if (phba->intr_type == MSIX) {
+ rc = lpfc_config_msi(phba, pmb);
+ if (rc) {
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "0352 Config MSI mailbox command "
+ "failed, mbxCmd x%x, mbxStatus x%x\n",
+ pmb->u.mb.mbxCommand,
+ pmb->u.mb.mbxStatus);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ }
+
+ spin_lock_irq(&phba->hbalock);
+ /* Initialize ERATT handling flag */
+ phba->hba_flag &= ~HBA_ERATT_HANDLED;
+
+ /* Enable appropriate host interrupts */
+ if (lpfc_readl(phba->HCregaddr, &status)) {
+ spin_unlock_irq(&phba->hbalock);
+ return -EIO;
+ }
+ status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
+ if (psli->num_rings > 0)
+ status |= HC_R0INT_ENA;
+ if (psli->num_rings > 1)
+ status |= HC_R1INT_ENA;
+ if (psli->num_rings > 2)
+ status |= HC_R2INT_ENA;
+ if (psli->num_rings > 3)
+ status |= HC_R3INT_ENA;
+
+ if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
+ (phba->cfg_poll & DISABLE_FCP_RING_INT))
+ status &= ~(HC_R0INT_ENA);
+
+ writel(status, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Set up ring-0 (ELS) timer */
+ timeout = phba->fc_ratov * 2;
+ mod_timer(&vport->els_tmofunc,
+ jiffies + msecs_to_jiffies(1000 * timeout));
+ /* Set up heart beat (HB) timer */
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
+ phba->hb_outstanding = 0;
+ phba->last_completion_time = jiffies;
+ /* Set up error attention (ERATT) polling timer */
+ mod_timer(&phba->eratt_poll,
+ jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
+
+ if (phba->hba_flag & LINK_DISABLED) {
+ lpfc_printf_log(phba,
+ KERN_ERR, LOG_INIT,
+ "2598 Adapter Link is disabled.\n");
+ lpfc_down_link(phba, pmb);
+ pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
+ lpfc_printf_log(phba,
+ KERN_ERR, LOG_INIT,
+ "2599 Adapter failed to issue DOWN_LINK"
+ " mbox command rc 0x%x\n", rc);
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
+ mempool_free(pmb, phba->mbox_mem_pool);
+ rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
+ if (rc)
+ return rc;
+ }
+ /* MBOX buffer will be freed in mbox compl */
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return -ENOMEM;
+ }
+
+ lpfc_config_async(phba, pmb, LPFC_ELS_RING);
+ pmb->mbox_cmpl = lpfc_config_async_cmpl;
+ pmb->vport = phba->pport;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+
+ if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_INIT,
+ "0456 Adapter failed to issue "
+ "ASYNCEVT_ENABLE mbox status x%x\n",
+ rc);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ }
+
+ /* Get Option rom version */
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return -ENOMEM;
+ }
+
+ lpfc_dump_wakeup_param(phba, pmb);
+ pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
+ pmb->vport = phba->pport;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+
+ if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
+ "to get Option ROM version status x%x\n", rc);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ }
+
+ return 0;
+}
+
+/**
+ * lpfc_hba_init_link - Initialize the FC link
+ * @phba: pointer to lpfc hba data structure.
+ * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
+ *
+ * This routine will issue the INIT_LINK mailbox command call.
+ * It is available to other drivers through the lpfc_hba data
+ * structure for use as a delayed link up mechanism with the
+ * module parameter lpfc_suppress_link_up.
+ *
+ * Return code
+ * 0 - success
+ * Any other value - error
+ **/
+static int
+lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
+{
+ return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
+}
+
+/**
+ * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
+ * @phba: pointer to lpfc hba data structure.
+ * @fc_topology: desired fc topology.
+ * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
+ *
+ * This routine will issue the INIT_LINK mailbox command call.
+ * It is available to other drivers through the lpfc_hba data
+ * structure for use as a delayed link up mechanism with the
+ * module parameter lpfc_suppress_link_up.
+ *
+ * Return code
+ * 0 - success
+ * Any other value - error
+ **/
+int
+lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
+ uint32_t flag)
+{
+ struct lpfc_vport *vport = phba->pport;
+ LPFC_MBOXQ_t *pmb;
+ MAILBOX_t *mb;
+ int rc;
+
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return -ENOMEM;
+ }
+ mb = &pmb->u.mb;
+ pmb->vport = vport;
+
+ if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
+ ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
+ !(phba->lmt & LMT_1Gb)) ||
+ ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
+ !(phba->lmt & LMT_2Gb)) ||
+ ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
+ !(phba->lmt & LMT_4Gb)) ||
+ ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
+ !(phba->lmt & LMT_8Gb)) ||
+ ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
+ !(phba->lmt & LMT_10Gb)) ||
+ ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
+ !(phba->lmt & LMT_16Gb))) {
+ /* Reset link speed to auto */
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1302 Invalid speed for this board:%d "
+ "Reset link speed to auto.\n",
+ phba->cfg_link_speed);
+ phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
+ }
+ lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
+ pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ lpfc_set_loopback_flag(phba);
+ rc = lpfc_sli_issue_mbox(phba, pmb, flag);
+ if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0498 Adapter failed to init, mbxCmd x%x "
+ "INIT_LINK, mbxStatus x%x\n",
+ mb->mbxCommand, mb->mbxStatus);
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ /* Clear all interrupt enable conditions */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ /* Clear all pending interrupts */
+ writel(0xffffffff, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ }
+ phba->link_state = LPFC_HBA_ERROR;
+ if (rc != MBX_BUSY || flag == MBX_POLL)
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
+ if (flag == MBX_POLL)
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ return 0;
+}
+
+/**
+ * lpfc_hba_down_link - this routine downs the FC link
+ * @phba: pointer to lpfc hba data structure.
+ * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
+ *
+ * This routine will issue the DOWN_LINK mailbox command call.
+ * It is available to other drivers through the lpfc_hba data
+ * structure for use to stop the link.
+ *
+ * Return code
+ * 0 - success
+ * Any other value - error
+ **/
+static int
+lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
+{
+ LPFC_MBOXQ_t *pmb;
+ int rc;
+
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return -ENOMEM;
+ }
+
+ lpfc_printf_log(phba,
+ KERN_ERR, LOG_INIT,
+ "0491 Adapter Link is disabled.\n");
+ lpfc_down_link(phba, pmb);
+ pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, pmb, flag);
+ if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
+ lpfc_printf_log(phba,
+ KERN_ERR, LOG_INIT,
+ "2522 Adapter failed to issue DOWN_LINK"
+ " mbox command rc 0x%x\n", rc);
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ if (flag == MBX_POLL)
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ return 0;
+}
+
+/**
+ * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will do LPFC uninitialization before the HBA is reset when
+ * bringing down the SLI Layer.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
+int
+lpfc_hba_down_prep(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i;
+
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ /* Disable interrupts */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ }
+
+ if (phba->pport->load_flag & FC_UNLOADING)
+ lpfc_cleanup_discovery_resources(phba->pport);
+ else {
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports &&
+ vports[i] != NULL; i++)
+ lpfc_cleanup_discovery_resources(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+ }
+ return 0;
+}
+
+/**
+ * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
+ * rspiocb which got deferred
+ *
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will cleanup completed slow path events after HBA is reset
+ * when bringing down the SLI Layer.
+ *
+ *
+ * Return codes
+ * void.
+ **/
+static void
+lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
+{
+ struct lpfc_iocbq *rspiocbq;
+ struct hbq_dmabuf *dmabuf;
+ struct lpfc_cq_event *cq_event;
+
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
+ spin_unlock_irq(&phba->hbalock);
+
+ while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
+ /* Get the response iocb from the head of work queue */
+ spin_lock_irq(&phba->hbalock);
+ list_remove_head(&phba->sli4_hba.sp_queue_event,
+ cq_event, struct lpfc_cq_event, list);
+ spin_unlock_irq(&phba->hbalock);
+
+ switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
+ case CQE_CODE_COMPL_WQE:
+ rspiocbq = container_of(cq_event, struct lpfc_iocbq,
+ cq_event);
+ lpfc_sli_release_iocbq(phba, rspiocbq);
+ break;
+ case CQE_CODE_RECEIVE:
+ case CQE_CODE_RECEIVE_V1:
+ dmabuf = container_of(cq_event, struct hbq_dmabuf,
+ cq_event);
+ lpfc_in_buf_free(phba, &dmabuf->dbuf);
+ }
+ }
+}
+
+/**
+ * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will cleanup posted ELS buffers after the HBA is reset
+ * when bringing down the SLI Layer.
+ *
+ *
+ * Return codes
+ * void.
+ **/
+static void
+lpfc_hba_free_post_buf(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+ struct lpfc_dmabuf *mp, *next_mp;
+ LIST_HEAD(buflist);
+ int count;
+
+ if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
+ lpfc_sli_hbqbuf_free_all(phba);
+ else {
+ /* Cleanup preposted buffers on the ELS ring */
+ pring = &psli->ring[LPFC_ELS_RING];
+ spin_lock_irq(&phba->hbalock);
+ list_splice_init(&pring->postbufq, &buflist);
+ spin_unlock_irq(&phba->hbalock);
+
+ count = 0;
+ list_for_each_entry_safe(mp, next_mp, &buflist, list) {
+ list_del(&mp->list);
+ count++;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ }
+
+ spin_lock_irq(&phba->hbalock);
+ pring->postbufq_cnt -= count;
+ spin_unlock_irq(&phba->hbalock);
+ }
+}
+
+/**
+ * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will cleanup the txcmplq after the HBA is reset when bringing
+ * down the SLI Layer.
+ *
+ * Return codes
+ * void
+ **/
+static void
+lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+ LIST_HEAD(completions);
+ int i;
+
+ for (i = 0; i < psli->num_rings; i++) {
+ pring = &psli->ring[i];
+ if (phba->sli_rev >= LPFC_SLI_REV4)
+ spin_lock_irq(&pring->ring_lock);
+ else
+ spin_lock_irq(&phba->hbalock);
+ /* At this point in time the HBA is either reset or DOA. Either
+ * way, nothing should be on txcmplq as it will NEVER complete.
+ */
+ list_splice_init(&pring->txcmplq, &completions);
+ pring->txcmplq_cnt = 0;
+
+ if (phba->sli_rev >= LPFC_SLI_REV4)
+ spin_unlock_irq(&pring->ring_lock);
+ else
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+ lpfc_sli_abort_iocb_ring(phba, pring);
+ }
+}
+
+/**
+ * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
+ int i;
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will do uninitialization after the HBA is reset when bring
+ * down the SLI Layer.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
+static int
+lpfc_hba_down_post_s3(struct lpfc_hba *phba)
+{
+ lpfc_hba_free_post_buf(phba);
+ lpfc_hba_clean_txcmplq(phba);
+ return 0;
+}
+
+/**
+ * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will do uninitialization after the HBA is reset when bring
+ * down the SLI Layer.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
+static int
+lpfc_hba_down_post_s4(struct lpfc_hba *phba)
+{
+ struct lpfc_scsi_buf *psb, *psb_next;
+ LIST_HEAD(aborts);
+ unsigned long iflag = 0;
+ struct lpfc_sglq *sglq_entry = NULL;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ lpfc_hba_free_post_buf(phba);
+ lpfc_hba_clean_txcmplq(phba);
+ pring = &psli->ring[LPFC_ELS_RING];
+
+ /* At this point in time the HBA is either reset or DOA. Either
+ * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
+ * on the lpfc_sgl_list so that it can either be freed if the
+ * driver is unloading or reposted if the driver is restarting
+ * the port.
+ */
+ spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
+ /* scsl_buf_list */
+ /* abts_sgl_list_lock required because worker thread uses this
+ * list.
+ */
+ spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
+ list_for_each_entry(sglq_entry,
+ &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
+ sglq_entry->state = SGL_FREED;
+
+ spin_lock(&pring->ring_lock);
+ list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
+ &phba->sli4_hba.lpfc_sgl_list);
+ spin_unlock(&pring->ring_lock);
+ spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
+ /* abts_scsi_buf_list_lock required because worker thread uses this
+ * list.
+ */
+ spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
+ list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
+ &aborts);
+ spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
+ spin_unlock_irq(&phba->hbalock);
+
+ list_for_each_entry_safe(psb, psb_next, &aborts, list) {
+ psb->pCmd = NULL;
+ psb->status = IOSTAT_SUCCESS;
+ }
+ spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
+ list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
+ spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
+
+ lpfc_sli4_free_sp_events(phba);
+ return 0;
+}
+
+/**
+ * lpfc_hba_down_post - Wrapper func for hba down post routine
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine wraps the actual SLI3 or SLI4 routine for performing
+ * uninitialization after the HBA is reset when bring down the SLI Layer.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
+int
+lpfc_hba_down_post(struct lpfc_hba *phba)
+{
+ return (*phba->lpfc_hba_down_post)(phba);
+}
+
+/**
+ * lpfc_hb_timeout - The HBA-timer timeout handler
+ * @ptr: unsigned long holds the pointer to lpfc hba data structure.
+ *
+ * This is the HBA-timer timeout handler registered to the lpfc driver. When
+ * this timer fires, a HBA timeout event shall be posted to the lpfc driver
+ * work-port-events bitmap and the worker thread is notified. This timeout
+ * event will be used by the worker thread to invoke the actual timeout
+ * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
+ * be performed in the timeout handler and the HBA timeout event bit shall
+ * be cleared by the worker thread after it has taken the event bitmap out.
+ **/
+static void
+lpfc_hb_timeout(unsigned long ptr)
+{
+ struct lpfc_hba *phba;
+ uint32_t tmo_posted;
+ unsigned long iflag;
+
+ phba = (struct lpfc_hba *)ptr;
+
+ /* Check for heart beat timeout conditions */
+ spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
+ tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
+ if (!tmo_posted)
+ phba->pport->work_port_events |= WORKER_HB_TMO;
+ spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
+
+ /* Tell the worker thread there is work to do */
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
+ return;
+}
+
+/**
+ * lpfc_rrq_timeout - The RRQ-timer timeout handler
+ * @ptr: unsigned long holds the pointer to lpfc hba data structure.
+ *
+ * This is the RRQ-timer timeout handler registered to the lpfc driver. When
+ * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
+ * work-port-events bitmap and the worker thread is notified. This timeout
+ * event will be used by the worker thread to invoke the actual timeout
+ * handler routine, lpfc_rrq_handler. Any periodical operations will
+ * be performed in the timeout handler and the RRQ timeout event bit shall
+ * be cleared by the worker thread after it has taken the event bitmap out.
+ **/
+static void
+lpfc_rrq_timeout(unsigned long ptr)
+{
+ struct lpfc_hba *phba;
+ unsigned long iflag;
+
+ phba = (struct lpfc_hba *)ptr;
+ spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
+ if (!(phba->pport->load_flag & FC_UNLOADING))
+ phba->hba_flag |= HBA_RRQ_ACTIVE;
+ else
+ phba->hba_flag &= ~HBA_RRQ_ACTIVE;
+ spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
+
+ if (!(phba->pport->load_flag & FC_UNLOADING))
+ lpfc_worker_wake_up(phba);
+}
+
+/**
+ * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
+ * @phba: pointer to lpfc hba data structure.
+ * @pmboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This is the callback function to the lpfc heart-beat mailbox command.
+ * If configured, the lpfc driver issues the heart-beat mailbox command to
+ * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
+ * heart-beat mailbox command is issued, the driver shall set up heart-beat
+ * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
+ * heart-beat outstanding state. Once the mailbox command comes back and
+ * no error conditions detected, the heart-beat mailbox command timer is
+ * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
+ * state is cleared for the next heart-beat. If the timer expired with the
+ * heart-beat outstanding state set, the driver will put the HBA offline.
+ **/
+static void
+lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
+{
+ unsigned long drvr_flag;
+
+ spin_lock_irqsave(&phba->hbalock, drvr_flag);
+ phba->hb_outstanding = 0;
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+
+ /* Check and reset heart-beat timer is necessary */
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
+ !(phba->link_state == LPFC_HBA_ERROR) &&
+ !(phba->pport->load_flag & FC_UNLOADING))
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
+ return;
+}
+
+/**
+ * lpfc_hb_timeout_handler - The HBA-timer timeout handler
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This is the actual HBA-timer timeout handler to be invoked by the worker
+ * thread whenever the HBA timer fired and HBA-timeout event posted. This
+ * handler performs any periodic operations needed for the device. If such
+ * periodic event has already been attended to either in the interrupt handler
+ * or by processing slow-ring or fast-ring events within the HBA-timer
+ * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
+ * the timer for the next timeout period. If lpfc heart-beat mailbox command
+ * is configured and there is no heart-beat mailbox command outstanding, a
+ * heart-beat mailbox is issued and timer set properly. Otherwise, if there
+ * has been a heart-beat mailbox command outstanding, the HBA shall be put
+ * to offline.
+ **/
+void
+lpfc_hb_timeout_handler(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ LPFC_MBOXQ_t *pmboxq;
+ struct lpfc_dmabuf *buf_ptr;
+ int retval, i;
+ struct lpfc_sli *psli = &phba->sli;
+ LIST_HEAD(completions);
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
+ lpfc_rcv_seq_check_edtov(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ if ((phba->link_state == LPFC_HBA_ERROR) ||
+ (phba->pport->load_flag & FC_UNLOADING) ||
+ (phba->pport->fc_flag & FC_OFFLINE_MODE))
+ return;
+
+ spin_lock_irq(&phba->pport->work_port_lock);
+
+ if (time_after(phba->last_completion_time +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
+ jiffies)) {
+ spin_unlock_irq(&phba->pport->work_port_lock);
+ if (!phba->hb_outstanding)
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
+ else
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
+ return;
+ }
+ spin_unlock_irq(&phba->pport->work_port_lock);
+
+ if (phba->elsbuf_cnt &&
+ (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
+ spin_lock_irq(&phba->hbalock);
+ list_splice_init(&phba->elsbuf, &completions);
+ phba->elsbuf_cnt = 0;
+ phba->elsbuf_prev_cnt = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ while (!list_empty(&completions)) {
+ list_remove_head(&completions, buf_ptr,
+ struct lpfc_dmabuf, list);
+ lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
+ kfree(buf_ptr);
+ }
+ }
+ phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
+
+ /* If there is no heart beat outstanding, issue a heartbeat command */
+ if (phba->cfg_enable_hba_heartbeat) {
+ if (!phba->hb_outstanding) {
+ if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
+ (list_empty(&psli->mboxq))) {
+ pmboxq = mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL);
+ if (!pmboxq) {
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 *
+ LPFC_HB_MBOX_INTERVAL));
+ return;
+ }
+
+ lpfc_heart_beat(phba, pmboxq);
+ pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
+ pmboxq->vport = phba->pport;
+ retval = lpfc_sli_issue_mbox(phba, pmboxq,
+ MBX_NOWAIT);
+
+ if (retval != MBX_BUSY &&
+ retval != MBX_SUCCESS) {
+ mempool_free(pmboxq,
+ phba->mbox_mem_pool);
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 *
+ LPFC_HB_MBOX_INTERVAL));
+ return;
+ }
+ phba->skipped_hb = 0;
+ phba->hb_outstanding = 1;
+ } else if (time_before_eq(phba->last_completion_time,
+ phba->skipped_hb)) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2857 Last completion time not "
+ " updated in %d ms\n",
+ jiffies_to_msecs(jiffies
+ - phba->last_completion_time));
+ } else
+ phba->skipped_hb = jiffies;
+
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
+ return;
+ } else {
+ /*
+ * If heart beat timeout called with hb_outstanding set
+ * we need to give the hb mailbox cmd a chance to
+ * complete or TMO.
+ */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0459 Adapter heartbeat still out"
+ "standing:last compl time was %d ms.\n",
+ jiffies_to_msecs(jiffies
+ - phba->last_completion_time));
+ mod_timer(&phba->hb_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
+ }
+ }
+}
+
+/**
+ * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to bring the HBA offline when HBA hardware error
+ * other than Port Error 6 has been detected.
+ **/
+static void
+lpfc_offline_eratt(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
+
+ lpfc_offline(phba);
+ lpfc_reset_barrier(phba);
+ spin_lock_irq(&phba->hbalock);
+ lpfc_sli_brdreset(phba);
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_hba_down_post(phba);
+ lpfc_sli_brdready(phba, HS_MBRDY);
+ lpfc_unblock_mgmt_io(phba);
+ phba->link_state = LPFC_HBA_ERROR;
+ return;
+}
+
+/**
+ * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to bring a SLI4 HBA offline when HBA hardware error
+ * other than Port Error 6 has been detected.
+ **/
+void
+lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
+{
+ spin_lock_irq(&phba->hbalock);
+ phba->link_state = LPFC_HBA_ERROR;
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
+ lpfc_offline(phba);
+ lpfc_hba_down_post(phba);
+ lpfc_unblock_mgmt_io(phba);
+}
+
+/**
+ * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to handle the deferred HBA hardware error
+ * conditions. This type of error is indicated by HBA by setting ER1
+ * and another ER bit in the host status register. The driver will
+ * wait until the ER1 bit clears before handling the error condition.
+ **/
+static void
+lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
+{
+ uint32_t old_host_status = phba->work_hs;
+ struct lpfc_sli *psli = &phba->sli;
+
+ /* If the pci channel is offline, ignore possible errors,
+ * since we cannot communicate with the pci card anyway.
+ */
+ if (pci_channel_offline(phba->pcidev)) {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~DEFER_ERATT;
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0479 Deferred Adapter Hardware Error "
+ "Data: x%x x%x x%x\n",
+ phba->work_hs,
+ phba->work_status[0], phba->work_status[1]);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+
+ /*
+ * Firmware stops when it triggred erratt. That could cause the I/Os
+ * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
+ * SCSI layer retry it after re-establishing link.
+ */
+ lpfc_sli_abort_fcp_rings(phba);
+
+ /*
+ * There was a firmware error. Take the hba offline and then
+ * attempt to restart it.
+ */
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ lpfc_offline(phba);
+
+ /* Wait for the ER1 bit to clear.*/
+ while (phba->work_hs & HS_FFER1) {
+ msleep(100);
+ if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
+ phba->work_hs = UNPLUG_ERR ;
+ break;
+ }
+ /* If driver is unloading let the worker thread continue */
+ if (phba->pport->load_flag & FC_UNLOADING) {
+ phba->work_hs = 0;
+ break;
+ }
+ }
+
+ /*
+ * This is to ptrotect against a race condition in which
+ * first write to the host attention register clear the
+ * host status register.
+ */
+ if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
+ phba->work_hs = old_host_status & ~HS_FFER1;
+
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~DEFER_ERATT;
+ spin_unlock_irq(&phba->hbalock);
+ phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
+ phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
+}
+
+static void
+lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
+{
+ struct lpfc_board_event_header board_event;
+ struct Scsi_Host *shost;
+
+ board_event.event_type = FC_REG_BOARD_EVENT;
+ board_event.subcategory = LPFC_EVENT_PORTINTERR;
+ shost = lpfc_shost_from_vport(phba->pport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(board_event),
+ (char *) &board_event,
+ LPFC_NL_VENDOR_ID);
+}
+
+/**
+ * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to handle the following HBA hardware error
+ * conditions:
+ * 1 - HBA error attention interrupt
+ * 2 - DMA ring index out of range
+ * 3 - Mailbox command came back as unknown
+ **/
+static void
+lpfc_handle_eratt_s3(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_sli *psli = &phba->sli;
+ uint32_t event_data;
+ unsigned long temperature;
+ struct temp_event temp_event_data;
+ struct Scsi_Host *shost;
+
+ /* If the pci channel is offline, ignore possible errors,
+ * since we cannot communicate with the pci card anyway.
+ */
+ if (pci_channel_offline(phba->pcidev)) {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~DEFER_ERATT;
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+
+ /* If resets are disabled then leave the HBA alone and return */
+ if (!phba->cfg_enable_hba_reset)
+ return;
+
+ /* Send an internal error event to mgmt application */
+ lpfc_board_errevt_to_mgmt(phba);
+
+ if (phba->hba_flag & DEFER_ERATT)
+ lpfc_handle_deferred_eratt(phba);
+
+ if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
+ if (phba->work_hs & HS_FFER6)
+ /* Re-establishing Link */
+ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
+ "1301 Re-establishing Link "
+ "Data: x%x x%x x%x\n",
+ phba->work_hs, phba->work_status[0],
+ phba->work_status[1]);
+ if (phba->work_hs & HS_FFER8)
+ /* Device Zeroization */
+ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
+ "2861 Host Authentication device "
+ "zeroization Data:x%x x%x x%x\n",
+ phba->work_hs, phba->work_status[0],
+ phba->work_status[1]);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+ /*
+ * Firmware stops when it triggled erratt with HS_FFER6.
+ * That could cause the I/Os dropped by the firmware.
+ * Error iocb (I/O) on txcmplq and let the SCSI layer
+ * retry it after re-establishing link.
+ */
+ lpfc_sli_abort_fcp_rings(phba);
+
+ /*
+ * There was a firmware error. Take the hba offline and then
+ * attempt to restart it.
+ */
+ lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+ if (lpfc_online(phba) == 0) { /* Initialize the HBA */
+ lpfc_unblock_mgmt_io(phba);
+ return;
+ }
+ lpfc_unblock_mgmt_io(phba);
+ } else if (phba->work_hs & HS_CRIT_TEMP) {
+ temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
+ temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
+ temp_event_data.event_code = LPFC_CRIT_TEMP;
+ temp_event_data.data = (uint32_t)temperature;
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0406 Adapter maximum temperature exceeded "
+ "(%ld), taking this port offline "
+ "Data: x%x x%x x%x\n",
+ temperature, phba->work_hs,
+ phba->work_status[0], phba->work_status[1]);
+
+ shost = lpfc_shost_from_vport(phba->pport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(temp_event_data),
+ (char *) &temp_event_data,
+ SCSI_NL_VID_TYPE_PCI
+ | PCI_VENDOR_ID_EMULEX);
+
+ spin_lock_irq(&phba->hbalock);
+ phba->over_temp_state = HBA_OVER_TEMP;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_offline_eratt(phba);
+
+ } else {
+ /* The if clause above forces this code path when the status
+ * failure is a value other than FFER6. Do not call the offline
+ * twice. This is the adapter hardware error path.
+ */
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0457 Adapter Hardware Error "
+ "Data: x%x x%x x%x\n",
+ phba->work_hs,
+ phba->work_status[0], phba->work_status[1]);
+
+ event_data = FC_REG_DUMP_EVENT;
+ shost = lpfc_shost_from_vport(vport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(event_data), (char *) &event_data,
+ SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+
+ lpfc_offline_eratt(phba);
+ }
+ return;
+}
+
+/**
+ * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
+ * @phba: pointer to lpfc hba data structure.
+ * @mbx_action: flag for mailbox shutdown action.
+ *
+ * This routine is invoked to perform an SLI4 port PCI function reset in
+ * response to port status register polling attention. It waits for port
+ * status register (ERR, RDY, RN) bits before proceeding with function reset.
+ * During this process, interrupt vectors are freed and later requested
+ * for handling possible port resource change.
+ **/
+static int
+lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
+ bool en_rn_msg)
+{
+ int rc;
+ uint32_t intr_mode;
+
+ /*
+ * On error status condition, driver need to wait for port
+ * ready before performing reset.
+ */
+ rc = lpfc_sli4_pdev_status_reg_wait(phba);
+ if (!rc) {
+ /* need reset: attempt for port recovery */
+ if (en_rn_msg)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2887 Reset Needed: Attempting Port "
+ "Recovery...\n");
+ lpfc_offline_prep(phba, mbx_action);
+ lpfc_offline(phba);
+ /* release interrupt for possible resource change */
+ lpfc_sli4_disable_intr(phba);
+ lpfc_sli_brdrestart(phba);
+ /* request and enable interrupt */
+ intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3175 Failed to enable interrupt\n");
+ return -EIO;
+ } else {
+ phba->intr_mode = intr_mode;
+ }
+ rc = lpfc_online(phba);
+ if (rc == 0)
+ lpfc_unblock_mgmt_io(phba);
+ }
+ return rc;
+}
+
+/**
+ * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to handle the SLI4 HBA hardware error attention
+ * conditions.
+ **/
+static void
+lpfc_handle_eratt_s4(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ uint32_t event_data;
+ struct Scsi_Host *shost;
+ uint32_t if_type;
+ struct lpfc_register portstat_reg = {0};
+ uint32_t reg_err1, reg_err2;
+ uint32_t uerrlo_reg, uemasklo_reg;
+ uint32_t pci_rd_rc1, pci_rd_rc2;
+ bool en_rn_msg = true;
+ struct temp_event temp_event_data;
+ int rc;
+
+ /* If the pci channel is offline, ignore possible errors, since
+ * we cannot communicate with the pci card anyway.
+ */
+ if (pci_channel_offline(phba->pcidev))
+ return;
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ switch (if_type) {
+ case LPFC_SLI_INTF_IF_TYPE_0:
+ pci_rd_rc1 = lpfc_readl(
+ phba->sli4_hba.u.if_type0.UERRLOregaddr,
+ &uerrlo_reg);
+ pci_rd_rc2 = lpfc_readl(
+ phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
+ &uemasklo_reg);
+ /* consider PCI bus read error as pci_channel_offline */
+ if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
+ return;
+ lpfc_sli4_offline_eratt(phba);
+ break;
+
+ case LPFC_SLI_INTF_IF_TYPE_2:
+ pci_rd_rc1 = lpfc_readl(
+ phba->sli4_hba.u.if_type2.STATUSregaddr,
+ &portstat_reg.word0);
+ /* consider PCI bus read error as pci_channel_offline */
+ if (pci_rd_rc1 == -EIO) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3151 PCI bus read access failure: x%x\n",
+ readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
+ return;
+ }
+ reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
+ reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
+ if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2889 Port Overtemperature event, "
+ "taking port offline Data: x%x x%x\n",
+ reg_err1, reg_err2);
+
+ temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
+ temp_event_data.event_code = LPFC_CRIT_TEMP;
+ temp_event_data.data = 0xFFFFFFFF;
+
+ shost = lpfc_shost_from_vport(phba->pport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(temp_event_data),
+ (char *)&temp_event_data,
+ SCSI_NL_VID_TYPE_PCI
+ | PCI_VENDOR_ID_EMULEX);
+
+ spin_lock_irq(&phba->hbalock);
+ phba->over_temp_state = HBA_OVER_TEMP;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli4_offline_eratt(phba);
+ return;
+ }
+ if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+ reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3143 Port Down: Firmware Update "
+ "Detected\n");
+ en_rn_msg = false;
+ } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+ reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3144 Port Down: Debug Dump\n");
+ else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+ reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3145 Port Down: Provisioning\n");
+
+ /* If resets are disabled then leave the HBA alone and return */
+ if (!phba->cfg_enable_hba_reset)
+ return;
+
+ /* Check port status register for function reset */
+ rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
+ en_rn_msg);
+ if (rc == 0) {
+ /* don't report event on forced debug dump */
+ if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+ reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
+ return;
+ else
+ break;
+ }
+ /* fall through for not able to recover */
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3152 Unrecoverable error, bring the port "
+ "offline\n");
+ lpfc_sli4_offline_eratt(phba);
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_1:
+ default:
+ break;
+ }
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "3123 Report dump event to upper layer\n");
+ /* Send an internal error event to mgmt application */
+ lpfc_board_errevt_to_mgmt(phba);
+
+ event_data = FC_REG_DUMP_EVENT;
+ shost = lpfc_shost_from_vport(vport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(event_data), (char *) &event_data,
+ SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+}
+
+/**
+ * lpfc_handle_eratt - Wrapper func for handling hba error attention
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine wraps the actual SLI3 or SLI4 hba error attention handling
+ * routine from the API jump table function pointer from the lpfc_hba struct.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
+void
+lpfc_handle_eratt(struct lpfc_hba *phba)
+{
+ (*phba->lpfc_handle_eratt)(phba);
+}
+
+/**
+ * lpfc_handle_latt - The HBA link event handler
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked from the worker thread to handle a HBA host
+ * attention link event.
+ **/
+void
+lpfc_handle_latt(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_sli *psli = &phba->sli;
+ LPFC_MBOXQ_t *pmb;
+ volatile uint32_t control;
+ struct lpfc_dmabuf *mp;
+ int rc = 0;
+
+ pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ rc = 1;
+ goto lpfc_handle_latt_err_exit;
+ }
+
+ mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!mp) {
+ rc = 2;
+ goto lpfc_handle_latt_free_pmb;
+ }
+
+ mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
+ if (!mp->virt) {
+ rc = 3;
+ goto lpfc_handle_latt_free_mp;
+ }
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_all_cmd(phba);
+
+ psli->slistat.link_event++;
+ lpfc_read_topology(phba, pmb, mp);
+ pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
+ pmb->vport = vport;
+ /* Block ELS IOCBs until we have processed this mbox command */
+ phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
+ rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ rc = 4;
+ goto lpfc_handle_latt_free_mbuf;
+ }
+
+ /* Clear Link Attention in HA REG */
+ spin_lock_irq(&phba->hbalock);
+ writel(HA_LATT, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ spin_unlock_irq(&phba->hbalock);
+
+ return;
+
+lpfc_handle_latt_free_mbuf:
+ phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+lpfc_handle_latt_free_mp:
+ kfree(mp);
+lpfc_handle_latt_free_pmb:
+ mempool_free(pmb, phba->mbox_mem_pool);
+lpfc_handle_latt_err_exit:
+ /* Enable Link attention interrupts */
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_PROCESS_LA;
+ control = readl(phba->HCregaddr);
+ control |= HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+
+ /* Clear Link Attention in HA REG */
+ writel(HA_LATT, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_linkdown(phba);
+ phba->link_state = LPFC_HBA_ERROR;
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
+
+ return;
+}
+
+/**
+ * lpfc_parse_vpd - Parse VPD (Vital Product Data)
+ * @phba: pointer to lpfc hba data structure.
+ * @vpd: pointer to the vital product data.
+ * @len: length of the vital product data in bytes.
+ *
+ * This routine parses the Vital Product Data (VPD). The VPD is treated as
+ * an array of characters. In this routine, the ModelName, ProgramType, and
+ * ModelDesc, etc. fields of the phba data structure will be populated.
+ *
+ * Return codes
+ * 0 - pointer to the VPD passed in is NULL
+ * 1 - success
+ **/
+int
+lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
+{
+ uint8_t lenlo, lenhi;
+ int Length;
+ int i, j;
+ int finished = 0;
+ int index = 0;
+
+ if (!vpd)
+ return 0;
+
+ /* Vital Product */
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0455 Vital Product Data: x%x x%x x%x x%x\n",
+ (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
+ (uint32_t) vpd[3]);
+ while (!finished && (index < (len - 4))) {
+ switch (vpd[index]) {
+ case 0x82:
+ case 0x91:
+ index += 1;
+ lenlo = vpd[index];
+ index += 1;
+ lenhi = vpd[index];
+ index += 1;
+ i = ((((unsigned short)lenhi) << 8) + lenlo);
+ index += i;
+ break;
+ case 0x90:
+ index += 1;
+ lenlo = vpd[index];
+ index += 1;
+ lenhi = vpd[index];
+ index += 1;
+ Length = ((((unsigned short)lenhi) << 8) + lenlo);
+ if (Length > len - index)
+ Length = len - index;
+ while (Length > 0) {
+ /* Look for Serial Number */
+ if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
+ index += 2;
+ i = vpd[index];
+ index += 1;
+ j = 0;
+ Length -= (3+i);
+ while(i--) {
+ phba->SerialNumber[j++] = vpd[index++];
+ if (j == 31)
+ break;
+ }
+ phba->SerialNumber[j] = 0;
+ continue;
+ }
+ else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
+ phba->vpd_flag |= VPD_MODEL_DESC;
+ index += 2;
+ i = vpd[index];
+ index += 1;
+ j = 0;
+ Length -= (3+i);
+ while(i--) {
+ phba->ModelDesc[j++] = vpd[index++];
+ if (j == 255)
+ break;
+ }
+ phba->ModelDesc[j] = 0;
+ continue;
+ }
+ else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
+ phba->vpd_flag |= VPD_MODEL_NAME;
+ index += 2;
+ i = vpd[index];
+ index += 1;
+ j = 0;
+ Length -= (3+i);
+ while(i--) {
+ phba->ModelName[j++] = vpd[index++];
+ if (j == 79)
+ break;
+ }
+ phba->ModelName[j] = 0;
+ continue;
+ }
+ else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
+ phba->vpd_flag |= VPD_PROGRAM_TYPE;
+ index += 2;
+ i = vpd[index];
+ index += 1;
+ j = 0;
+ Length -= (3+i);
+ while(i--) {
+ phba->ProgramType[j++] = vpd[index++];
+ if (j == 255)
+ break;
+ }
+ phba->ProgramType[j] = 0;
+ continue;
+ }
+ else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
+ phba->vpd_flag |= VPD_PORT;
+ index += 2;
+ i = vpd[index];
+ index += 1;
+ j = 0;
+ Length -= (3+i);
+ while(i--) {
+ if ((phba->sli_rev == LPFC_SLI_REV4) &&
+ (phba->sli4_hba.pport_name_sta ==
+ LPFC_SLI4_PPNAME_GET)) {
+ j++;
+ index++;
+ } else
+ phba->Port[j++] = vpd[index++];
+ if (j == 19)
+ break;
+ }
+ if ((phba->sli_rev != LPFC_SLI_REV4) ||
+ (phba->sli4_hba.pport_name_sta ==
+ LPFC_SLI4_PPNAME_NON))
+ phba->Port[j] = 0;
+ continue;
+ }
+ else {
+ index += 2;
+ i = vpd[index];
+ index += 1;
+ index += i;
+ Length -= (3 + i);
+ }
+ }
+ finished = 0;
+ break;
+ case 0x78:
+ finished = 1;
+ break;
+ default:
+ index ++;
+ break;
+ }
+ }
+
+ return(1);
+}
+
+/**
+ * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
+ * @phba: pointer to lpfc hba data structure.
+ * @mdp: pointer to the data structure to hold the derived model name.
+ * @descp: pointer to the data structure to hold the derived description.
+ *
+ * This routine retrieves HBA's description based on its registered PCI device
+ * ID. The @descp passed into this function points to an array of 256 chars. It
+ * shall be returned with the model name, maximum speed, and the host bus type.
+ * The @mdp passed into this function points to an array of 80 chars. When the
+ * function returns, the @mdp will be filled with the model name.
+ **/
+static void
+lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
+{
+ lpfc_vpd_t *vp;
+ uint16_t dev_id = phba->pcidev->device;
+ int max_speed;
+ int GE = 0;
+ int oneConnect = 0; /* default is not a oneConnect */
+ struct {
+ char *name;
+ char *bus;
+ char *function;
+ } m = {"<Unknown>", "", ""};
+
+ if (mdp && mdp[0] != '\0'
+ && descp && descp[0] != '\0')
+ return;
+
+ if (phba->lmt & LMT_16Gb)
+ max_speed = 16;
+ else if (phba->lmt & LMT_10Gb)
+ max_speed = 10;
+ else if (phba->lmt & LMT_8Gb)
+ max_speed = 8;
+ else if (phba->lmt & LMT_4Gb)
+ max_speed = 4;
+ else if (phba->lmt & LMT_2Gb)
+ max_speed = 2;
+ else if (phba->lmt & LMT_1Gb)
+ max_speed = 1;
+ else
+ max_speed = 0;
+
+ vp = &phba->vpd;
+
+ switch (dev_id) {
+ case PCI_DEVICE_ID_FIREFLY:
+ m = (typeof(m)){"LP6000", "PCI",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SUPERFLY:
+ if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
+ m = (typeof(m)){"LP7000", "PCI", ""};
+ else
+ m = (typeof(m)){"LP7000E", "PCI", ""};
+ m.function = "Obsolete, Unsupported Fibre Channel Adapter";
+ break;
+ case PCI_DEVICE_ID_DRAGONFLY:
+ m = (typeof(m)){"LP8000", "PCI",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_CENTAUR:
+ if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
+ m = (typeof(m)){"LP9002", "PCI", ""};
+ else
+ m = (typeof(m)){"LP9000", "PCI", ""};
+ m.function = "Obsolete, Unsupported Fibre Channel Adapter";
+ break;
+ case PCI_DEVICE_ID_RFLY:
+ m = (typeof(m)){"LP952", "PCI",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_PEGASUS:
+ m = (typeof(m)){"LP9802", "PCI-X",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_THOR:
+ m = (typeof(m)){"LP10000", "PCI-X",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_VIPER:
+ m = (typeof(m)){"LPX1000", "PCI-X",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_PFLY:
+ m = (typeof(m)){"LP982", "PCI-X",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_TFLY:
+ m = (typeof(m)){"LP1050", "PCI-X",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_HELIOS:
+ m = (typeof(m)){"LP11000", "PCI-X2",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_HELIOS_SCSP:
+ m = (typeof(m)){"LP11000-SP", "PCI-X2",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_HELIOS_DCSP:
+ m = (typeof(m)){"LP11002-SP", "PCI-X2",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_NEPTUNE:
+ m = (typeof(m)){"LPe1000", "PCIe",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_NEPTUNE_SCSP:
+ m = (typeof(m)){"LPe1000-SP", "PCIe",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_NEPTUNE_DCSP:
+ m = (typeof(m)){"LPe1002-SP", "PCIe",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_BMID:
+ m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_BSMB:
+ m = (typeof(m)){"LP111", "PCI-X2",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_ZEPHYR:
+ m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_ZEPHYR_SCSP:
+ m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_ZEPHYR_DCSP:
+ m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
+ GE = 1;
+ break;
+ case PCI_DEVICE_ID_ZMID:
+ m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_ZSMB:
+ m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LP101:
+ m = (typeof(m)){"LP101", "PCI-X",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LP10000S:
+ m = (typeof(m)){"LP10000-S", "PCI",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LP11000S:
+ m = (typeof(m)){"LP11000-S", "PCI-X2",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LPE11000S:
+ m = (typeof(m)){"LPe11000-S", "PCIe",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SAT:
+ m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SAT_MID:
+ m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SAT_SMB:
+ m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SAT_DCSP:
+ m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SAT_SCSP:
+ m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_SAT_S:
+ m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_HORNET:
+ m = (typeof(m)){"LP21000", "PCIe",
+ "Obsolete, Unsupported FCoE Adapter"};
+ GE = 1;
+ break;
+ case PCI_DEVICE_ID_PROTEUS_VF:
+ m = (typeof(m)){"LPev12000", "PCIe IOV",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_PROTEUS_PF:
+ m = (typeof(m)){"LPev12000", "PCIe IOV",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_PROTEUS_S:
+ m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_TIGERSHARK:
+ oneConnect = 1;
+ m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
+ break;
+ case PCI_DEVICE_ID_TOMCAT:
+ oneConnect = 1;
+ m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
+ break;
+ case PCI_DEVICE_ID_FALCON:
+ m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
+ "EmulexSecure Fibre"};
+ break;
+ case PCI_DEVICE_ID_BALIUS:
+ m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LANCER_FC:
+ m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LANCER_FC_VF:
+ m = (typeof(m)){"LPe16000", "PCIe",
+ "Obsolete, Unsupported Fibre Channel Adapter"};
+ break;
+ case PCI_DEVICE_ID_LANCER_FCOE:
+ oneConnect = 1;
+ m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
+ break;
+ case PCI_DEVICE_ID_LANCER_FCOE_VF:
+ oneConnect = 1;
+ m = (typeof(m)){"OCe15100", "PCIe",
+ "Obsolete, Unsupported FCoE"};
+ break;
+ case PCI_DEVICE_ID_SKYHAWK:
+ case PCI_DEVICE_ID_SKYHAWK_VF:
+ oneConnect = 1;
+ m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
+ break;
+ default:
+ m = (typeof(m)){"Unknown", "", ""};
+ break;
+ }
+
+ if (mdp && mdp[0] == '\0')
+ snprintf(mdp, 79,"%s", m.name);
+ /*
+ * oneConnect hba requires special processing, they are all initiators
+ * and we put the port number on the end
+ */
+ if (descp && descp[0] == '\0') {
+ if (oneConnect)
+ snprintf(descp, 255,
+ "Emulex OneConnect %s, %s Initiator %s",
+ m.name, m.function,
+ phba->Port);
+ else if (max_speed == 0)
+ snprintf(descp, 255,
+ "Emulex %s %s %s ",
+ m.name, m.bus, m.function);
+ else
+ snprintf(descp, 255,
+ "Emulex %s %d%s %s %s",
+ m.name, max_speed, (GE) ? "GE" : "Gb",
+ m.bus, m.function);
+ }
+}
+
+/**
+ * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
+ * @phba: pointer to lpfc hba data structure.
+ * @pring: pointer to a IOCB ring.
+ * @cnt: the number of IOCBs to be posted to the IOCB ring.
+ *
+ * This routine posts a given number of IOCBs with the associated DMA buffer
+ * descriptors specified by the cnt argument to the given IOCB ring.
+ *
+ * Return codes
+ * The number of IOCBs NOT able to be posted to the IOCB ring.
+ **/
+int
+lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
+{
+ IOCB_t *icmd;
+ struct lpfc_iocbq *iocb;
+ struct lpfc_dmabuf *mp1, *mp2;
+
+ cnt += pring->missbufcnt;
+
+ /* While there are buffers to post */
+ while (cnt > 0) {
+ /* Allocate buffer for command iocb */
+ iocb = lpfc_sli_get_iocbq(phba);
+ if (iocb == NULL) {
+ pring->missbufcnt = cnt;
+ return cnt;
+ }
+ icmd = &iocb->iocb;
+
+ /* 2 buffers can be posted per command */
+ /* Allocate buffer to post */
+ mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
+ if (mp1)
+ mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
+ if (!mp1 || !mp1->virt) {
+ kfree(mp1);
+ lpfc_sli_release_iocbq(phba, iocb);
+ pring->missbufcnt = cnt;
+ return cnt;
+ }
+
+ INIT_LIST_HEAD(&mp1->list);
+ /* Allocate buffer to post */
+ if (cnt > 1) {
+ mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
+ if (mp2)
+ mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
+ &mp2->phys);
+ if (!mp2 || !mp2->virt) {
+ kfree(mp2);
+ lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
+ kfree(mp1);
+ lpfc_sli_release_iocbq(phba, iocb);
+ pring->missbufcnt = cnt;
+ return cnt;
+ }
+
+ INIT_LIST_HEAD(&mp2->list);
+ } else {
+ mp2 = NULL;
+ }
+
+ icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
+ icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
+ icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
+ icmd->ulpBdeCount = 1;
+ cnt--;
+ if (mp2) {
+ icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
+ icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
+ icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
+ cnt--;
+ icmd->ulpBdeCount = 2;
+ }
+
+ icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
+ icmd->ulpLe = 1;
+
+ if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
+ IOCB_ERROR) {
+ lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
+ kfree(mp1);
+ cnt++;
+ if (mp2) {
+ lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
+ kfree(mp2);
+ cnt++;
+ }
+ lpfc_sli_release_iocbq(phba, iocb);
+ pring->missbufcnt = cnt;
+ return cnt;
+ }
+ lpfc_sli_ringpostbuf_put(phba, pring, mp1);
+ if (mp2)
+ lpfc_sli_ringpostbuf_put(phba, pring, mp2);
+ }
+ pring->missbufcnt = 0;
+ return 0;
+}
+
+/**
+ * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine posts initial receive IOCB buffers to the ELS ring. The
+ * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
+ * set to 64 IOCBs.
+ *
+ * Return codes
+ * 0 - success (currently always success)
+ **/
+static int
+lpfc_post_rcv_buf(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+
+ /* Ring 0, ELS / CT buffers */
+ lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
+ /* Ring 2 - FCP no buffers needed */
+
+ return 0;
+}
+
+#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
+
+/**
+ * lpfc_sha_init - Set up initial array of hash table entries
+ * @HashResultPointer: pointer to an array as hash table.
+ *
+ * This routine sets up the initial values to the array of hash table entries
+ * for the LC HBAs.
+ **/
+static void
+lpfc_sha_init(uint32_t * HashResultPointer)
+{
+ HashResultPointer[0] = 0x67452301;
+ HashResultPointer[1] = 0xEFCDAB89;
+ HashResultPointer[2] = 0x98BADCFE;
+ HashResultPointer[3] = 0x10325476;
+ HashResultPointer[4] = 0xC3D2E1F0;
+}
+
+/**
+ * lpfc_sha_iterate - Iterate initial hash table with the working hash table
+ * @HashResultPointer: pointer to an initial/result hash table.
+ * @HashWorkingPointer: pointer to an working hash table.
+ *
+ * This routine iterates an initial hash table pointed by @HashResultPointer
+ * with the values from the working hash table pointeed by @HashWorkingPointer.
+ * The results are putting back to the initial hash table, returned through
+ * the @HashResultPointer as the result hash table.
+ **/
+static void
+lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
+{
+ int t;
+ uint32_t TEMP;
+ uint32_t A, B, C, D, E;
+ t = 16;
+ do {
+ HashWorkingPointer[t] =
+ S(1,
+ HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
+ 8] ^
+ HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
+ } while (++t <= 79);
+ t = 0;
+ A = HashResultPointer[0];
+ B = HashResultPointer[1];
+ C = HashResultPointer[2];
+ D = HashResultPointer[3];
+ E = HashResultPointer[4];
+
+ do {
+ if (t < 20) {
+ TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
+ } else if (t < 40) {
+ TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
+ } else if (t < 60) {
+ TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
+ } else {
+ TEMP = (B ^ C ^ D) + 0xCA62C1D6;
+ }
+ TEMP += S(5, A) + E + HashWorkingPointer[t];
+ E = D;
+ D = C;
+ C = S(30, B);
+ B = A;
+ A = TEMP;
+ } while (++t <= 79);
+
+ HashResultPointer[0] += A;
+ HashResultPointer[1] += B;
+ HashResultPointer[2] += C;
+ HashResultPointer[3] += D;
+ HashResultPointer[4] += E;
+
+}
+
+/**
+ * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
+ * @RandomChallenge: pointer to the entry of host challenge random number array.
+ * @HashWorking: pointer to the entry of the working hash array.
+ *
+ * This routine calculates the working hash array referred by @HashWorking
+ * from the challenge random numbers associated with the host, referred by
+ * @RandomChallenge. The result is put into the entry of the working hash
+ * array and returned by reference through @HashWorking.
+ **/
+static void
+lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
+{
+ *HashWorking = (*RandomChallenge ^ *HashWorking);
+}
+
+/**
+ * lpfc_hba_init - Perform special handling for LC HBA initialization
+ * @phba: pointer to lpfc hba data structure.
+ * @hbainit: pointer to an array of unsigned 32-bit integers.
+ *
+ * This routine performs the special handling for LC HBA initialization.
+ **/
+void
+lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
+{
+ int t;
+ uint32_t *HashWorking;
+ uint32_t *pwwnn = (uint32_t *) phba->wwnn;
+
+ HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
+ if (!HashWorking)
+ return;
+
+ HashWorking[0] = HashWorking[78] = *pwwnn++;
+ HashWorking[1] = HashWorking[79] = *pwwnn;
+
+ for (t = 0; t < 7; t++)
+ lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
+
+ lpfc_sha_init(hbainit);
+ lpfc_sha_iterate(hbainit, HashWorking);
+ kfree(HashWorking);
+}
+
+/**
+ * lpfc_cleanup - Performs vport cleanups before deleting a vport
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine performs the necessary cleanups before deleting the @vport.
+ * It invokes the discovery state machine to perform necessary state
+ * transitions and to release the ndlps associated with the @vport. Note,
+ * the physical port is treated as @vport 0.
+ **/
+void
+lpfc_cleanup(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ int i = 0;
+
+ if (phba->link_state > LPFC_LINK_DOWN)
+ lpfc_port_link_failure(vport);
+
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp,
+ NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ continue;
+ spin_lock_irq(&phba->ndlp_lock);
+ NLP_SET_FREE_REQ(ndlp);
+ spin_unlock_irq(&phba->ndlp_lock);
+ /* Trigger the release of the ndlp memory */
+ lpfc_nlp_put(ndlp);
+ continue;
+ }
+ spin_lock_irq(&phba->ndlp_lock);
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ /* The ndlp should not be in memory free mode already */
+ spin_unlock_irq(&phba->ndlp_lock);
+ continue;
+ } else
+ /* Indicate request for freeing ndlp memory */
+ NLP_SET_FREE_REQ(ndlp);
+ spin_unlock_irq(&phba->ndlp_lock);
+
+ if (vport->port_type != LPFC_PHYSICAL_PORT &&
+ ndlp->nlp_DID == Fabric_DID) {
+ /* Just free up ndlp with Fabric_DID for vports */
+ lpfc_nlp_put(ndlp);
+ continue;
+ }
+
+ /* take care of nodes in unused state before the state
+ * machine taking action.
+ */
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
+ lpfc_nlp_put(ndlp);
+ continue;
+ }
+
+ if (ndlp->nlp_type & NLP_FABRIC)
+ lpfc_disc_state_machine(vport, ndlp, NULL,
+ NLP_EVT_DEVICE_RECOVERY);
+
+ lpfc_disc_state_machine(vport, ndlp, NULL,
+ NLP_EVT_DEVICE_RM);
+ }
+
+ /* At this point, ALL ndlp's should be gone
+ * because of the previous NLP_EVT_DEVICE_RM.
+ * Lets wait for this to happen, if needed.
+ */
+ while (!list_empty(&vport->fc_nodes)) {
+ if (i++ > 3000) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0233 Nodelist not empty\n");
+ list_for_each_entry_safe(ndlp, next_ndlp,
+ &vport->fc_nodes, nlp_listp) {
+ lpfc_printf_vlog(ndlp->vport, KERN_ERR,
+ LOG_NODE,
+ "0282 did:x%x ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ ndlp->nlp_DID, (void *)ndlp,
+ ndlp->nlp_usg_map,
+ atomic_read(
+ &ndlp->kref.refcount));
+ }
+ break;
+ }
+
+ /* Wait for any activity on ndlps to settle */
+ msleep(10);
+ }
+ lpfc_cleanup_vports_rrqs(vport, NULL);
+}
+
+/**
+ * lpfc_stop_vport_timers - Stop all the timers associated with a vport
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine stops all the timers associated with a @vport. This function
+ * is invoked before disabling or deleting a @vport. Note that the physical
+ * port is treated as @vport 0.
+ **/
+void
+lpfc_stop_vport_timers(struct lpfc_vport *vport)
+{
+ del_timer_sync(&vport->els_tmofunc);
+ del_timer_sync(&vport->fc_fdmitmo);
+ del_timer_sync(&vport->delayed_disc_tmo);
+ lpfc_can_disctmo(vport);
+ return;
+}
+
+/**
+ * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
+ * caller of this routine should already hold the host lock.
+ **/
+void
+__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
+{
+ /* Clear pending FCF rediscovery wait flag */
+ phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
+
+ /* Now, try to stop the timer */
+ del_timer(&phba->fcf.redisc_wait);
+}
+
+/**
+ * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
+ * checks whether the FCF rediscovery wait timer is pending with the host
+ * lock held before proceeding with disabling the timer and clearing the
+ * wait timer pendig flag.
+ **/
+void
+lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
+{
+ spin_lock_irq(&phba->hbalock);
+ if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
+ /* FCF rediscovery timer already fired or stopped */
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
+ /* Clear failover in progress flags */
+ phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/**
+ * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine stops all the timers associated with a HBA. This function is
+ * invoked before either putting a HBA offline or unloading the driver.
+ **/
+void
+lpfc_stop_hba_timers(struct lpfc_hba *phba)
+{
+ lpfc_stop_vport_timers(phba->pport);
+ del_timer_sync(&phba->sli.mbox_tmo);
+ del_timer_sync(&phba->fabric_block_timer);
+ del_timer_sync(&phba->eratt_poll);
+ del_timer_sync(&phba->hb_tmofunc);
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ del_timer_sync(&phba->rrq_tmr);
+ phba->hba_flag &= ~HBA_RRQ_ACTIVE;
+ }
+ phba->hb_outstanding = 0;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ /* Stop any LightPulse device specific driver timers */
+ del_timer_sync(&phba->fcp_poll_timer);
+ break;
+ case LPFC_PCI_DEV_OC:
+ /* Stop any OneConnect device sepcific driver timers */
+ lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0297 Invalid device group (x%x)\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return;
+}
+
+/**
+ * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine marks a HBA's management interface as blocked. Once the HBA's
+ * management interface is marked as blocked, all the user space access to
+ * the HBA, whether they are from sysfs interface or libdfc interface will
+ * all be blocked. The HBA is set to block the management interface when the
+ * driver prepares the HBA interface for online or offline.
+ **/
+static void
+lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
+{
+ unsigned long iflag;
+ uint8_t actcmd = MBX_HEARTBEAT;
+ unsigned long timeout;
+
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ if (mbx_action == LPFC_MBX_NO_WAIT)
+ return;
+ timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ if (phba->sli.mbox_active) {
+ actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
+ /* Determine how long we might wait for the active mailbox
+ * command to be gracefully completed by firmware.
+ */
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
+ phba->sli.mbox_active) * 1000) + jiffies;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+
+ /* Wait for the outstnading mailbox command to complete */
+ while (phba->sli.mbox_active) {
+ /* Check active mailbox complete status every 2ms */
+ msleep(2);
+ if (time_after(jiffies, timeout)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2813 Mgmt IO is Blocked %x "
+ "- mbox cmd %x still active\n",
+ phba->sli.sli_flag, actcmd);
+ break;
+ }
+ }
+}
+
+/**
+ * lpfc_sli4_node_prep - Assign RPIs for active nodes.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * Allocate RPIs for all active remote nodes. This is needed whenever
+ * an SLI4 adapter is reset and the driver is not unloading. Its purpose
+ * is to fixup the temporary rpi assignments.
+ **/
+void
+lpfc_sli4_node_prep(struct lpfc_hba *phba)
+{
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ struct lpfc_vport **vports;
+ int i;
+
+ if (phba->sli_rev != LPFC_SLI_REV4)
+ return;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ if (vports[i]->load_flag & FC_UNLOADING)
+ continue;
+
+ list_for_each_entry_safe(ndlp, next_ndlp,
+ &vports[i]->fc_nodes,
+ nlp_listp) {
+ if (NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp->nlp_rpi =
+ lpfc_sli4_alloc_rpi(phba);
+ lpfc_printf_vlog(ndlp->vport, KERN_INFO,
+ LOG_NODE,
+ "0009 rpi:%x DID:%x "
+ "flg:%x map:%x %p\n",
+ ndlp->nlp_rpi,
+ ndlp->nlp_DID,
+ ndlp->nlp_flag,
+ ndlp->nlp_usg_map,
+ ndlp);
+ }
+ }
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+}
+
+/**
+ * lpfc_online - Initialize and bring a HBA online
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine initializes the HBA and brings a HBA online. During this
+ * process, the management interface is blocked to prevent user space access
+ * to the HBA interfering with the driver initialization.
+ *
+ * Return codes
+ * 0 - successful
+ * 1 - failed
+ **/
+int
+lpfc_online(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport;
+ struct lpfc_vport **vports;
+ int i;
+ bool vpis_cleared = false;
+
+ if (!phba)
+ return 0;
+ vport = phba->pport;
+
+ if (!(vport->fc_flag & FC_OFFLINE_MODE))
+ return 0;
+
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0458 Bring Adapter online\n");
+
+ lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
+
+ if (!lpfc_sli_queue_setup(phba)) {
+ lpfc_unblock_mgmt_io(phba);
+ return 1;
+ }
+
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
+ lpfc_unblock_mgmt_io(phba);
+ return 1;
+ }
+ spin_lock_irq(&phba->hbalock);
+ if (!phba->sli4_hba.max_cfg_param.vpi_used)
+ vpis_cleared = true;
+ spin_unlock_irq(&phba->hbalock);
+ } else {
+ if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
+ lpfc_unblock_mgmt_io(phba);
+ return 1;
+ }
+ }
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ struct Scsi_Host *shost;
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
+ if ((vpis_cleared) &&
+ (vports[i]->port_type !=
+ LPFC_PHYSICAL_PORT))
+ vports[i]->vpi = 0;
+ }
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ lpfc_unblock_mgmt_io(phba);
+ return 0;
+}
+
+/**
+ * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine marks a HBA's management interface as not blocked. Once the
+ * HBA's management interface is marked as not blocked, all the user space
+ * access to the HBA, whether they are from sysfs interface or libdfc
+ * interface will be allowed. The HBA is set to block the management interface
+ * when the driver prepares the HBA interface for online or offline and then
+ * set to unblock the management interface afterwards.
+ **/
+void
+lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
+{
+ unsigned long iflag;
+
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+}
+
+/**
+ * lpfc_offline_prep - Prepare a HBA to be brought offline
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to prepare a HBA to be brought offline. It performs
+ * unregistration login to all the nodes on all vports and flushes the mailbox
+ * queue to make it ready to be brought offline.
+ **/
+void
+lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ struct lpfc_vport **vports;
+ struct Scsi_Host *shost;
+ int i;
+
+ if (vport->fc_flag & FC_OFFLINE_MODE)
+ return;
+
+ lpfc_block_mgmt_io(phba, mbx_action);
+
+ lpfc_linkdown(phba);
+
+ /* Issue an unreg_login to all nodes on all vports */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ if (vports[i]->load_flag & FC_UNLOADING)
+ continue;
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
+ vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
+ spin_unlock_irq(shost->host_lock);
+
+ shost = lpfc_shost_from_vport(vports[i]);
+ list_for_each_entry_safe(ndlp, next_ndlp,
+ &vports[i]->fc_nodes,
+ nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ continue;
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ lpfc_disc_state_machine(vports[i], ndlp,
+ NULL, NLP_EVT_DEVICE_RECOVERY);
+ lpfc_disc_state_machine(vports[i], ndlp,
+ NULL, NLP_EVT_DEVICE_RM);
+ }
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_NPR_ADISC;
+ spin_unlock_irq(shost->host_lock);
+ /*
+ * Whenever an SLI4 port goes offline, free the
+ * RPI. Get a new RPI when the adapter port
+ * comes back online.
+ */
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ lpfc_printf_vlog(ndlp->vport,
+ KERN_INFO, LOG_NODE,
+ "0011 lpfc_offline: "
+ "ndlp:x%p did %x "
+ "usgmap:x%x rpi:%x\n",
+ ndlp, ndlp->nlp_DID,
+ ndlp->nlp_usg_map,
+ ndlp->nlp_rpi);
+
+ lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
+ }
+ lpfc_unreg_rpi(vports[i], ndlp);
+ }
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
+}
+
+/**
+ * lpfc_offline - Bring a HBA offline
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine actually brings a HBA offline. It stops all the timers
+ * associated with the HBA, brings down the SLI layer, and eventually
+ * marks the HBA as in offline state for the upper layer protocol.
+ **/
+void
+lpfc_offline(struct lpfc_hba *phba)
+{
+ struct Scsi_Host *shost;
+ struct lpfc_vport **vports;
+ int i;
+
+ if (phba->pport->fc_flag & FC_OFFLINE_MODE)
+ return;
+
+ /* stop port and all timers associated with this hba */
+ lpfc_stop_port(phba);
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
+ lpfc_stop_vport_timers(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0460 Bring Adapter offline\n");
+ /* Bring down the SLI Layer and cleanup. The HBA is offline
+ now. */
+ lpfc_sli_hba_down(phba);
+ spin_lock_irq(&phba->hbalock);
+ phba->work_ha = 0;
+ spin_unlock_irq(&phba->hbalock);
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ vports[i]->work_port_events = 0;
+ vports[i]->fc_flag |= FC_OFFLINE_MODE;
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+}
+
+/**
+ * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to free all the SCSI buffers and IOCBs from the driver
+ * list back to kernel. It is called from lpfc_pci_remove_one to free
+ * the internal resources before the device is removed from the system.
+ **/
+static void
+lpfc_scsi_free(struct lpfc_hba *phba)
+{
+ struct lpfc_scsi_buf *sb, *sb_next;
+ struct lpfc_iocbq *io, *io_next;
+
+ spin_lock_irq(&phba->hbalock);
+
+ /* Release all the lpfc_scsi_bufs maintained by this host. */
+
+ spin_lock(&phba->scsi_buf_list_put_lock);
+ list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
+ list) {
+ list_del(&sb->list);
+ pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
+ sb->dma_handle);
+ kfree(sb);
+ phba->total_scsi_bufs--;
+ }
+ spin_unlock(&phba->scsi_buf_list_put_lock);
+
+ spin_lock(&phba->scsi_buf_list_get_lock);
+ list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
+ list) {
+ list_del(&sb->list);
+ pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
+ sb->dma_handle);
+ kfree(sb);
+ phba->total_scsi_bufs--;
+ }
+ spin_unlock(&phba->scsi_buf_list_get_lock);
+
+ /* Release all the lpfc_iocbq entries maintained by this host. */
+ list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
+ list_del(&io->list);
+ kfree(io);
+ phba->total_iocbq_bufs--;
+ }
+
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/**
+ * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine first calculates the sizes of the current els and allocated
+ * scsi sgl lists, and then goes through all sgls to updates the physical
+ * XRIs assigned due to port function reset. During port initialization, the
+ * current els and allocated scsi sgl lists are 0s.
+ *
+ * Return codes
+ * 0 - successful (for now, it always returns 0)
+ **/
+int
+lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
+{
+ struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
+ struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
+ uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
+ LIST_HEAD(els_sgl_list);
+ LIST_HEAD(scsi_sgl_list);
+ int rc;
+ struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
+
+ /*
+ * update on pci function's els xri-sgl list
+ */
+ els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
+ if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
+ /* els xri-sgl expanded */
+ xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3157 ELS xri-sgl count increased from "
+ "%d to %d\n", phba->sli4_hba.els_xri_cnt,
+ els_xri_cnt);
+ /* allocate the additional els sgls */
+ for (i = 0; i < xri_cnt; i++) {
+ sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
+ GFP_KERNEL);
+ if (sglq_entry == NULL) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2562 Failure to allocate an "
+ "ELS sgl entry:%d\n", i);
+ rc = -ENOMEM;
+ goto out_free_mem;
+ }
+ sglq_entry->buff_type = GEN_BUFF_TYPE;
+ sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
+ &sglq_entry->phys);
+ if (sglq_entry->virt == NULL) {
+ kfree(sglq_entry);
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2563 Failure to allocate an "
+ "ELS mbuf:%d\n", i);
+ rc = -ENOMEM;
+ goto out_free_mem;
+ }
+ sglq_entry->sgl = sglq_entry->virt;
+ memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
+ sglq_entry->state = SGL_FREED;
+ list_add_tail(&sglq_entry->list, &els_sgl_list);
+ }
+ spin_lock_irq(&phba->hbalock);
+ spin_lock(&pring->ring_lock);
+ list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
+ spin_unlock(&pring->ring_lock);
+ spin_unlock_irq(&phba->hbalock);
+ } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
+ /* els xri-sgl shrinked */
+ xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3158 ELS xri-sgl count decreased from "
+ "%d to %d\n", phba->sli4_hba.els_xri_cnt,
+ els_xri_cnt);
+ spin_lock_irq(&phba->hbalock);
+ spin_lock(&pring->ring_lock);
+ list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
+ spin_unlock(&pring->ring_lock);
+ spin_unlock_irq(&phba->hbalock);
+ /* release extra els sgls from list */
+ for (i = 0; i < xri_cnt; i++) {
+ list_remove_head(&els_sgl_list,
+ sglq_entry, struct lpfc_sglq, list);
+ if (sglq_entry) {
+ lpfc_mbuf_free(phba, sglq_entry->virt,
+ sglq_entry->phys);
+ kfree(sglq_entry);
+ }
+ }
+ spin_lock_irq(&phba->hbalock);
+ spin_lock(&pring->ring_lock);
+ list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
+ spin_unlock(&pring->ring_lock);
+ spin_unlock_irq(&phba->hbalock);
+ } else
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3163 ELS xri-sgl count unchanged: %d\n",
+ els_xri_cnt);
+ phba->sli4_hba.els_xri_cnt = els_xri_cnt;
+
+ /* update xris to els sgls on the list */
+ sglq_entry = NULL;
+ sglq_entry_next = NULL;
+ list_for_each_entry_safe(sglq_entry, sglq_entry_next,
+ &phba->sli4_hba.lpfc_sgl_list, list) {
+ lxri = lpfc_sli4_next_xritag(phba);
+ if (lxri == NO_XRI) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2400 Failed to allocate xri for "
+ "ELS sgl\n");
+ rc = -ENOMEM;
+ goto out_free_mem;
+ }
+ sglq_entry->sli4_lxritag = lxri;
+ sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
+ }
+
+ /*
+ * update on pci function's allocated scsi xri-sgl list
+ */
+ phba->total_scsi_bufs = 0;
+
+ /* maximum number of xris available for scsi buffers */
+ phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
+ els_xri_cnt;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2401 Current allocated SCSI xri-sgl count:%d, "
+ "maximum SCSI xri count:%d\n",
+ phba->sli4_hba.scsi_xri_cnt,
+ phba->sli4_hba.scsi_xri_max);
+
+ spin_lock_irq(&phba->scsi_buf_list_get_lock);
+ spin_lock(&phba->scsi_buf_list_put_lock);
+ list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
+ list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
+ spin_unlock(&phba->scsi_buf_list_put_lock);
+ spin_unlock_irq(&phba->scsi_buf_list_get_lock);
+
+ if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
+ /* max scsi xri shrinked below the allocated scsi buffers */
+ scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
+ phba->sli4_hba.scsi_xri_max;
+ /* release the extra allocated scsi buffers */
+ for (i = 0; i < scsi_xri_cnt; i++) {
+ list_remove_head(&scsi_sgl_list, psb,
+ struct lpfc_scsi_buf, list);
+ if (psb) {
+ pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
+ psb->data, psb->dma_handle);
+ kfree(psb);
+ }
+ }
+ spin_lock_irq(&phba->scsi_buf_list_get_lock);
+ phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
+ spin_unlock_irq(&phba->scsi_buf_list_get_lock);
+ }
+
+ /* update xris associated to remaining allocated scsi buffers */
+ psb = NULL;
+ psb_next = NULL;
+ list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
+ lxri = lpfc_sli4_next_xritag(phba);
+ if (lxri == NO_XRI) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2560 Failed to allocate xri for "
+ "scsi buffer\n");
+ rc = -ENOMEM;
+ goto out_free_mem;
+ }
+ psb->cur_iocbq.sli4_lxritag = lxri;
+ psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
+ }
+ spin_lock_irq(&phba->scsi_buf_list_get_lock);
+ spin_lock(&phba->scsi_buf_list_put_lock);
+ list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
+ INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
+ spin_unlock(&phba->scsi_buf_list_put_lock);
+ spin_unlock_irq(&phba->scsi_buf_list_get_lock);
+
+ return 0;
+
+out_free_mem:
+ lpfc_free_els_sgl_list(phba);
+ lpfc_scsi_free(phba);
+ return rc;
+}
+
+/**
+ * lpfc_create_port - Create an FC port
+ * @phba: pointer to lpfc hba data structure.
+ * @instance: a unique integer ID to this FC port.
+ * @dev: pointer to the device data structure.
+ *
+ * This routine creates a FC port for the upper layer protocol. The FC port
+ * can be created on top of either a physical port or a virtual port provided
+ * by the HBA. This routine also allocates a SCSI host data structure (shost)
+ * and associates the FC port created before adding the shost into the SCSI
+ * layer.
+ *
+ * Return codes
+ * @vport - pointer to the virtual N_Port data structure.
+ * NULL - port create failed.
+ **/
+struct lpfc_vport *
+lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
+{
+ struct lpfc_vport *vport;
+ struct Scsi_Host *shost;
+ int error = 0;
+
+ if (dev != &phba->pcidev->dev) {
+ shost = scsi_host_alloc(&lpfc_vport_template,
+ sizeof(struct lpfc_vport));
+ } else {
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ shost = scsi_host_alloc(&lpfc_template,
+ sizeof(struct lpfc_vport));
+ else
+ shost = scsi_host_alloc(&lpfc_template_s3,
+ sizeof(struct lpfc_vport));
+ }
+ if (!shost)
+ goto out;
+
+ vport = (struct lpfc_vport *) shost->hostdata;
+ vport->phba = phba;
+ vport->load_flag |= FC_LOADING;
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ vport->fc_rscn_flush = 0;
+
+ lpfc_get_vport_cfgparam(vport);
+ shost->unique_id = instance;
+ shost->max_id = LPFC_MAX_TARGET;
+ shost->max_lun = vport->cfg_max_luns;
+ shost->this_id = -1;
+ shost->max_cmd_len = 16;
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ shost->dma_boundary =
+ phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
+ shost->sg_tablesize = phba->cfg_sg_seg_cnt;
+ }
+
+ /*
+ * Set initial can_queue value since 0 is no longer supported and
+ * scsi_add_host will fail. This will be adjusted later based on the
+ * max xri value determined in hba setup.
+ */
+ shost->can_queue = phba->cfg_hba_queue_depth - 10;
+ if (dev != &phba->pcidev->dev) {
+ shost->transportt = lpfc_vport_transport_template;
+ vport->port_type = LPFC_NPIV_PORT;
+ } else {
+ shost->transportt = lpfc_transport_template;
+ vport->port_type = LPFC_PHYSICAL_PORT;
+ }
+
+ /* Initialize all internally managed lists. */
+ INIT_LIST_HEAD(&vport->fc_nodes);
+ INIT_LIST_HEAD(&vport->rcv_buffer_list);
+ spin_lock_init(&vport->work_port_lock);
+
+ init_timer(&vport->fc_disctmo);
+ vport->fc_disctmo.function = lpfc_disc_timeout;
+ vport->fc_disctmo.data = (unsigned long)vport;
+
+ init_timer(&vport->fc_fdmitmo);
+ vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
+ vport->fc_fdmitmo.data = (unsigned long)vport;
+
+ init_timer(&vport->els_tmofunc);
+ vport->els_tmofunc.function = lpfc_els_timeout;
+ vport->els_tmofunc.data = (unsigned long)vport;
+
+ init_timer(&vport->delayed_disc_tmo);
+ vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
+ vport->delayed_disc_tmo.data = (unsigned long)vport;
+
+ error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
+ if (error)
+ goto out_put_shost;
+
+ spin_lock_irq(&phba->hbalock);
+ list_add_tail(&vport->listentry, &phba->port_list);
+ spin_unlock_irq(&phba->hbalock);
+ return vport;
+
+out_put_shost:
+ scsi_host_put(shost);
+out:
+ return NULL;
+}
+
+/**
+ * destroy_port - destroy an FC port
+ * @vport: pointer to an lpfc virtual N_Port data structure.
+ *
+ * This routine destroys a FC port from the upper layer protocol. All the
+ * resources associated with the port are released.
+ **/
+void
+destroy_port(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+
+ lpfc_debugfs_terminate(vport);
+ fc_remove_host(shost);
+ scsi_remove_host(shost);
+
+ spin_lock_irq(&phba->hbalock);
+ list_del_init(&vport->listentry);
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_cleanup(vport);
+ return;
+}
+
+/**
+ * lpfc_get_instance - Get a unique integer ID
+ *
+ * This routine allocates a unique integer ID from lpfc_hba_index pool. It
+ * uses the kernel idr facility to perform the task.
+ *
+ * Return codes:
+ * instance - a unique integer ID allocated as the new instance.
+ * -1 - lpfc get instance failed.
+ **/
+int
+lpfc_get_instance(void)
+{
+ int ret;
+
+ ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
+ return ret < 0 ? -1 : ret;
+}
+
+/**
+ * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
+ * @shost: pointer to SCSI host data structure.
+ * @time: elapsed time of the scan in jiffies.
+ *
+ * This routine is called by the SCSI layer with a SCSI host to determine
+ * whether the scan host is finished.
+ *
+ * Note: there is no scan_start function as adapter initialization will have
+ * asynchronously kicked off the link initialization.
+ *
+ * Return codes
+ * 0 - SCSI host scan is not over yet.
+ * 1 - SCSI host scan is over.
+ **/
+int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+ int stat = 0;
+
+ spin_lock_irq(shost->host_lock);
+
+ if (vport->load_flag & FC_UNLOADING) {
+ stat = 1;
+ goto finished;
+ }
+ if (time >= msecs_to_jiffies(30 * 1000)) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0461 Scanning longer than 30 "
+ "seconds. Continuing initialization\n");
+ stat = 1;
+ goto finished;
+ }
+ if (time >= msecs_to_jiffies(15 * 1000) &&
+ phba->link_state <= LPFC_LINK_DOWN) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0465 Link down longer than 15 "
+ "seconds. Continuing initialization\n");
+ stat = 1;
+ goto finished;
+ }
+
+ if (vport->port_state != LPFC_VPORT_READY)
+ goto finished;
+ if (vport->num_disc_nodes || vport->fc_prli_sent)
+ goto finished;
+ if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
+ goto finished;
+ if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
+ goto finished;
+
+ stat = 1;
+
+finished:
+ spin_unlock_irq(shost->host_lock);
+ return stat;
+}
+
+/**
+ * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
+ * @shost: pointer to SCSI host data structure.
+ *
+ * This routine initializes a given SCSI host attributes on a FC port. The
+ * SCSI host can be either on top of a physical port or a virtual port.
+ **/
+void lpfc_host_attrib_init(struct Scsi_Host *shost)
+{
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+ /*
+ * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
+ */
+
+ fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
+ fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
+ fc_host_supported_classes(shost) = FC_COS_CLASS3;
+
+ memset(fc_host_supported_fc4s(shost), 0,
+ sizeof(fc_host_supported_fc4s(shost)));
+ fc_host_supported_fc4s(shost)[2] = 1;
+ fc_host_supported_fc4s(shost)[7] = 1;
+
+ lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
+ sizeof fc_host_symbolic_name(shost));
+
+ fc_host_supported_speeds(shost) = 0;
+ if (phba->lmt & LMT_16Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
+ if (phba->lmt & LMT_10Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
+ if (phba->lmt & LMT_8Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
+ if (phba->lmt & LMT_4Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
+ if (phba->lmt & LMT_2Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
+ if (phba->lmt & LMT_1Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
+
+ fc_host_maxframe_size(shost) =
+ (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
+ (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
+
+ fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
+
+ /* This value is also unchanging */
+ memset(fc_host_active_fc4s(shost), 0,
+ sizeof(fc_host_active_fc4s(shost)));
+ fc_host_active_fc4s(shost)[2] = 1;
+ fc_host_active_fc4s(shost)[7] = 1;
+
+ fc_host_max_npiv_vports(shost) = phba->max_vpi;
+ spin_lock_irq(shost->host_lock);
+ vport->load_flag &= ~FC_LOADING;
+ spin_unlock_irq(shost->host_lock);
+}
+
+/**
+ * lpfc_stop_port_s3 - Stop SLI3 device port
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to stop an SLI3 device port, it stops the device
+ * from generating interrupts and stops the device driver's timers for the
+ * device.
+ **/
+static void
+lpfc_stop_port_s3(struct lpfc_hba *phba)
+{
+ /* Clear all interrupt enable conditions */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ /* Clear all pending interrupts */
+ writel(0xffffffff, phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+
+ /* Reset some HBA SLI setup states */
+ lpfc_stop_hba_timers(phba);
+ phba->pport->work_port_events = 0;
+}
+
+/**
+ * lpfc_stop_port_s4 - Stop SLI4 device port
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to stop an SLI4 device port, it stops the device
+ * from generating interrupts and stops the device driver's timers for the
+ * device.
+ **/
+static void
+lpfc_stop_port_s4(struct lpfc_hba *phba)
+{
+ /* Reset some HBA SLI4 setup states */
+ lpfc_stop_hba_timers(phba);
+ phba->pport->work_port_events = 0;
+ phba->sli4_hba.intr_enable = 0;
+}
+
+/**
+ * lpfc_stop_port - Wrapper function for stopping hba port
+ * @phba: Pointer to HBA context object.
+ *
+ * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
+ * the API jump table function pointer from the lpfc_hba struct.
+ **/
+void
+lpfc_stop_port(struct lpfc_hba *phba)
+{
+ phba->lpfc_stop_port(phba);
+}
+
+/**
+ * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
+ * @phba: Pointer to hba for which this call is being executed.
+ *
+ * This routine starts the timer waiting for the FCF rediscovery to complete.
+ **/
+void
+lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
+{
+ unsigned long fcf_redisc_wait_tmo =
+ (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
+ /* Start fcf rediscovery wait period timer */
+ mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
+ spin_lock_irq(&phba->hbalock);
+ /* Allow action to new fcf asynchronous event */
+ phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
+ /* Mark the FCF rediscovery pending state */
+ phba->fcf.fcf_flag |= FCF_REDISC_PEND;
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/**
+ * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
+ * @ptr: Map to lpfc_hba data structure pointer.
+ *
+ * This routine is invoked when waiting for FCF table rediscover has been
+ * timed out. If new FCF record(s) has (have) been discovered during the
+ * wait period, a new FCF event shall be added to the FCOE async event
+ * list, and then worker thread shall be waked up for processing from the
+ * worker thread context.
+ **/
+static void
+lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
+{
+ struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
+
+ /* Don't send FCF rediscovery event if timer cancelled */
+ spin_lock_irq(&phba->hbalock);
+ if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ /* Clear FCF rediscovery timer pending flag */
+ phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
+ /* FCF rediscovery event to worker thread */
+ phba->fcf.fcf_flag |= FCF_REDISC_EVT;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2776 FCF rediscover quiescent timer expired\n");
+ /* wake up worker thread */
+ lpfc_worker_wake_up(phba);
+}
+
+/**
+ * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async link completion queue entry.
+ *
+ * This routine is to parse the SLI4 link-attention link fault code and
+ * translate it into the base driver's read link attention mailbox command
+ * status.
+ *
+ * Return: Link-attention status in terms of base driver's coding.
+ **/
+static uint16_t
+lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
+ struct lpfc_acqe_link *acqe_link)
+{
+ uint16_t latt_fault;
+
+ switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
+ case LPFC_ASYNC_LINK_FAULT_NONE:
+ case LPFC_ASYNC_LINK_FAULT_LOCAL:
+ case LPFC_ASYNC_LINK_FAULT_REMOTE:
+ latt_fault = 0;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0398 Invalid link fault code: x%x\n",
+ bf_get(lpfc_acqe_link_fault, acqe_link));
+ latt_fault = MBXERR_ERROR;
+ break;
+ }
+ return latt_fault;
+}
+
+/**
+ * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async link completion queue entry.
+ *
+ * This routine is to parse the SLI4 link attention type and translate it
+ * into the base driver's link attention type coding.
+ *
+ * Return: Link attention type in terms of base driver's coding.
+ **/
+static uint8_t
+lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
+ struct lpfc_acqe_link *acqe_link)
+{
+ uint8_t att_type;
+
+ switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
+ case LPFC_ASYNC_LINK_STATUS_DOWN:
+ case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
+ att_type = LPFC_ATT_LINK_DOWN;
+ break;
+ case LPFC_ASYNC_LINK_STATUS_UP:
+ /* Ignore physical link up events - wait for logical link up */
+ att_type = LPFC_ATT_RESERVED;
+ break;
+ case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
+ att_type = LPFC_ATT_LINK_UP;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0399 Invalid link attention type: x%x\n",
+ bf_get(lpfc_acqe_link_status, acqe_link));
+ att_type = LPFC_ATT_RESERVED;
+ break;
+ }
+ return att_type;
+}
+
+/**
+ * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async link completion queue entry.
+ *
+ * This routine is to parse the SLI4 link-attention link speed and translate
+ * it into the base driver's link-attention link speed coding.
+ *
+ * Return: Link-attention link speed in terms of base driver's coding.
+ **/
+static uint8_t
+lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
+ struct lpfc_acqe_link *acqe_link)
+{
+ uint8_t link_speed;
+
+ switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
+ case LPFC_ASYNC_LINK_SPEED_ZERO:
+ case LPFC_ASYNC_LINK_SPEED_10MBPS:
+ case LPFC_ASYNC_LINK_SPEED_100MBPS:
+ link_speed = LPFC_LINK_SPEED_UNKNOWN;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_1GBPS:
+ link_speed = LPFC_LINK_SPEED_1GHZ;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_10GBPS:
+ link_speed = LPFC_LINK_SPEED_10GHZ;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_20GBPS:
+ case LPFC_ASYNC_LINK_SPEED_25GBPS:
+ case LPFC_ASYNC_LINK_SPEED_40GBPS:
+ link_speed = LPFC_LINK_SPEED_UNKNOWN;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0483 Invalid link-attention link speed: x%x\n",
+ bf_get(lpfc_acqe_link_speed, acqe_link));
+ link_speed = LPFC_LINK_SPEED_UNKNOWN;
+ break;
+ }
+ return link_speed;
+}
+
+/**
+ * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to get an SLI3 FC port's link speed in Mbps.
+ *
+ * Return: link speed in terms of Mbps.
+ **/
+uint32_t
+lpfc_sli_port_speed_get(struct lpfc_hba *phba)
+{
+ uint32_t link_speed;
+
+ if (!lpfc_is_link_up(phba))
+ return 0;
+
+ switch (phba->fc_linkspeed) {
+ case LPFC_LINK_SPEED_1GHZ:
+ link_speed = 1000;
+ break;
+ case LPFC_LINK_SPEED_2GHZ:
+ link_speed = 2000;
+ break;
+ case LPFC_LINK_SPEED_4GHZ:
+ link_speed = 4000;
+ break;
+ case LPFC_LINK_SPEED_8GHZ:
+ link_speed = 8000;
+ break;
+ case LPFC_LINK_SPEED_10GHZ:
+ link_speed = 10000;
+ break;
+ case LPFC_LINK_SPEED_16GHZ:
+ link_speed = 16000;
+ break;
+ default:
+ link_speed = 0;
+ }
+ return link_speed;
+}
+
+/**
+ * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
+ * @phba: pointer to lpfc hba data structure.
+ * @evt_code: asynchronous event code.
+ * @speed_code: asynchronous event link speed code.
+ *
+ * This routine is to parse the giving SLI4 async event link speed code into
+ * value of Mbps for the link speed.
+ *
+ * Return: link speed in terms of Mbps.
+ **/
+static uint32_t
+lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
+ uint8_t speed_code)
+{
+ uint32_t port_speed;
+
+ switch (evt_code) {
+ case LPFC_TRAILER_CODE_LINK:
+ switch (speed_code) {
+ case LPFC_ASYNC_LINK_SPEED_ZERO:
+ port_speed = 0;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_10MBPS:
+ port_speed = 10;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_100MBPS:
+ port_speed = 100;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_1GBPS:
+ port_speed = 1000;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_10GBPS:
+ port_speed = 10000;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_20GBPS:
+ port_speed = 20000;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_25GBPS:
+ port_speed = 25000;
+ break;
+ case LPFC_ASYNC_LINK_SPEED_40GBPS:
+ port_speed = 40000;
+ break;
+ default:
+ port_speed = 0;
+ }
+ break;
+ case LPFC_TRAILER_CODE_FC:
+ switch (speed_code) {
+ case LPFC_FC_LA_SPEED_UNKNOWN:
+ port_speed = 0;
+ break;
+ case LPFC_FC_LA_SPEED_1G:
+ port_speed = 1000;
+ break;
+ case LPFC_FC_LA_SPEED_2G:
+ port_speed = 2000;
+ break;
+ case LPFC_FC_LA_SPEED_4G:
+ port_speed = 4000;
+ break;
+ case LPFC_FC_LA_SPEED_8G:
+ port_speed = 8000;
+ break;
+ case LPFC_FC_LA_SPEED_10G:
+ port_speed = 10000;
+ break;
+ case LPFC_FC_LA_SPEED_16G:
+ port_speed = 16000;
+ break;
+ default:
+ port_speed = 0;
+ }
+ break;
+ default:
+ port_speed = 0;
+ }
+ return port_speed;
+}
+
+/**
+ * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async link completion queue entry.
+ *
+ * This routine is to handle the SLI4 asynchronous FCoE link event.
+ **/
+static void
+lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
+ struct lpfc_acqe_link *acqe_link)
+{
+ struct lpfc_dmabuf *mp;
+ LPFC_MBOXQ_t *pmb;
+ MAILBOX_t *mb;
+ struct lpfc_mbx_read_top *la;
+ uint8_t att_type;
+ int rc;
+
+ att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
+ if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
+ return;
+ phba->fcoe_eventtag = acqe_link->event_tag;
+ pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0395 The mboxq allocation failed\n");
+ return;
+ }
+ mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!mp) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0396 The lpfc_dmabuf allocation failed\n");
+ goto out_free_pmb;
+ }
+ mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
+ if (!mp->virt) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0397 The mbuf allocation failed\n");
+ goto out_free_dmabuf;
+ }
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_all_cmd(phba);
+
+ /* Block ELS IOCBs until we have done process link event */
+ phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
+
+ /* Update link event statistics */
+ phba->sli.slistat.link_event++;
+
+ /* Create lpfc_handle_latt mailbox command from link ACQE */
+ lpfc_read_topology(phba, pmb, mp);
+ pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
+ pmb->vport = phba->pport;
+
+ /* Keep the link status for extra SLI4 state machine reference */
+ phba->sli4_hba.link_state.speed =
+ lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
+ bf_get(lpfc_acqe_link_speed, acqe_link));
+ phba->sli4_hba.link_state.duplex =
+ bf_get(lpfc_acqe_link_duplex, acqe_link);
+ phba->sli4_hba.link_state.status =
+ bf_get(lpfc_acqe_link_status, acqe_link);
+ phba->sli4_hba.link_state.type =
+ bf_get(lpfc_acqe_link_type, acqe_link);
+ phba->sli4_hba.link_state.number =
+ bf_get(lpfc_acqe_link_number, acqe_link);
+ phba->sli4_hba.link_state.fault =
+ bf_get(lpfc_acqe_link_fault, acqe_link);
+ phba->sli4_hba.link_state.logical_speed =
+ bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2900 Async FC/FCoE Link event - Speed:%dGBit "
+ "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
+ "Logical speed:%dMbps Fault:%d\n",
+ phba->sli4_hba.link_state.speed,
+ phba->sli4_hba.link_state.topology,
+ phba->sli4_hba.link_state.status,
+ phba->sli4_hba.link_state.type,
+ phba->sli4_hba.link_state.number,
+ phba->sli4_hba.link_state.logical_speed,
+ phba->sli4_hba.link_state.fault);
+ /*
+ * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
+ * topology info. Note: Optional for non FC-AL ports.
+ */
+ if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED)
+ goto out_free_dmabuf;
+ return;
+ }
+ /*
+ * For FCoE Mode: fill in all the topology information we need and call
+ * the READ_TOPOLOGY completion routine to continue without actually
+ * sending the READ_TOPOLOGY mailbox command to the port.
+ */
+ /* Parse and translate status field */
+ mb = &pmb->u.mb;
+ mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
+
+ /* Parse and translate link attention fields */
+ la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
+ la->eventTag = acqe_link->event_tag;
+ bf_set(lpfc_mbx_read_top_att_type, la, att_type);
+ bf_set(lpfc_mbx_read_top_link_spd, la,
+ lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
+
+ /* Fake the the following irrelvant fields */
+ bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
+ bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
+ bf_set(lpfc_mbx_read_top_il, la, 0);
+ bf_set(lpfc_mbx_read_top_pb, la, 0);
+ bf_set(lpfc_mbx_read_top_fa, la, 0);
+ bf_set(lpfc_mbx_read_top_mm, la, 0);
+
+ /* Invoke the lpfc_handle_latt mailbox command callback function */
+ lpfc_mbx_cmpl_read_topology(phba, pmb);
+
+ return;
+
+out_free_dmabuf:
+ kfree(mp);
+out_free_pmb:
+ mempool_free(pmb, phba->mbox_mem_pool);
+}
+
+/**
+ * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_fc: pointer to the async fc completion queue entry.
+ *
+ * This routine is to handle the SLI4 asynchronous FC event. It will simply log
+ * that the event was received and then issue a read_topology mailbox command so
+ * that the rest of the driver will treat it the same as SLI3.
+ **/
+static void
+lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
+{
+ struct lpfc_dmabuf *mp;
+ LPFC_MBOXQ_t *pmb;
+ int rc;
+
+ if (bf_get(lpfc_trailer_type, acqe_fc) !=
+ LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2895 Non FC link Event detected.(%d)\n",
+ bf_get(lpfc_trailer_type, acqe_fc));
+ return;
+ }
+ /* Keep the link status for extra SLI4 state machine reference */
+ phba->sli4_hba.link_state.speed =
+ lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
+ bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
+ phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
+ phba->sli4_hba.link_state.topology =
+ bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
+ phba->sli4_hba.link_state.status =
+ bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
+ phba->sli4_hba.link_state.type =
+ bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
+ phba->sli4_hba.link_state.number =
+ bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
+ phba->sli4_hba.link_state.fault =
+ bf_get(lpfc_acqe_link_fault, acqe_fc);
+ phba->sli4_hba.link_state.logical_speed =
+ bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2896 Async FC event - Speed:%dGBaud Topology:x%x "
+ "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
+ "%dMbps Fault:%d\n",
+ phba->sli4_hba.link_state.speed,
+ phba->sli4_hba.link_state.topology,
+ phba->sli4_hba.link_state.status,
+ phba->sli4_hba.link_state.type,
+ phba->sli4_hba.link_state.number,
+ phba->sli4_hba.link_state.logical_speed,
+ phba->sli4_hba.link_state.fault);
+ pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2897 The mboxq allocation failed\n");
+ return;
+ }
+ mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!mp) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2898 The lpfc_dmabuf allocation failed\n");
+ goto out_free_pmb;
+ }
+ mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
+ if (!mp->virt) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2899 The mbuf allocation failed\n");
+ goto out_free_dmabuf;
+ }
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_all_cmd(phba);
+
+ /* Block ELS IOCBs until we have done process link event */
+ phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
+
+ /* Update link event statistics */
+ phba->sli.slistat.link_event++;
+
+ /* Create lpfc_handle_latt mailbox command from link ACQE */
+ lpfc_read_topology(phba, pmb, mp);
+ pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
+ pmb->vport = phba->pport;
+
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED)
+ goto out_free_dmabuf;
+ return;
+
+out_free_dmabuf:
+ kfree(mp);
+out_free_pmb:
+ mempool_free(pmb, phba->mbox_mem_pool);
+}
+
+/**
+ * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_fc: pointer to the async SLI completion queue entry.
+ *
+ * This routine is to handle the SLI4 asynchronous SLI events.
+ **/
+static void
+lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
+{
+ char port_name;
+ char message[128];
+ uint8_t status;
+ uint8_t evt_type;
+ struct temp_event temp_event_data;
+ struct lpfc_acqe_misconfigured_event *misconfigured;
+ struct Scsi_Host *shost;
+
+ evt_type = bf_get(lpfc_trailer_type, acqe_sli);
+
+ /* Special case Lancer */
+ if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
+ LPFC_SLI_INTF_IF_TYPE_2) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2901 Async SLI event - Event Data1:x%08x Event Data2:"
+ "x%08x SLI Event Type:%d\n",
+ acqe_sli->event_data1, acqe_sli->event_data2,
+ evt_type);
+ return;
+ }
+
+ port_name = phba->Port[0];
+ if (port_name == 0x00)
+ port_name = '?'; /* get port name is empty */
+
+ switch (evt_type) {
+ case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
+ temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
+ temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
+ temp_event_data.data = (uint32_t)acqe_sli->event_data1;
+
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "3190 Over Temperature:%d Celsius- Port Name %c\n",
+ acqe_sli->event_data1, port_name);
+
+ shost = lpfc_shost_from_vport(phba->pport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(temp_event_data),
+ (char *)&temp_event_data,
+ SCSI_NL_VID_TYPE_PCI
+ | PCI_VENDOR_ID_EMULEX);
+ break;
+ case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
+ temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
+ temp_event_data.event_code = LPFC_NORMAL_TEMP;
+ temp_event_data.data = (uint32_t)acqe_sli->event_data1;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3191 Normal Temperature:%d Celsius - Port Name %c\n",
+ acqe_sli->event_data1, port_name);
+
+ shost = lpfc_shost_from_vport(phba->pport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(temp_event_data),
+ (char *)&temp_event_data,
+ SCSI_NL_VID_TYPE_PCI
+ | PCI_VENDOR_ID_EMULEX);
+ break;
+ case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
+ misconfigured = (struct lpfc_acqe_misconfigured_event *)
+ &acqe_sli->event_data1;
+
+ /* fetch the status for this port */
+ switch (phba->sli4_hba.lnk_info.lnk_no) {
+ case LPFC_LINK_NUMBER_0:
+ status = bf_get(lpfc_sli_misconfigured_port0,
+ &misconfigured->theEvent);
+ break;
+ case LPFC_LINK_NUMBER_1:
+ status = bf_get(lpfc_sli_misconfigured_port1,
+ &misconfigured->theEvent);
+ break;
+ case LPFC_LINK_NUMBER_2:
+ status = bf_get(lpfc_sli_misconfigured_port2,
+ &misconfigured->theEvent);
+ break;
+ case LPFC_LINK_NUMBER_3:
+ status = bf_get(lpfc_sli_misconfigured_port3,
+ &misconfigured->theEvent);
+ break;
+ default:
+ status = ~LPFC_SLI_EVENT_STATUS_VALID;
+ break;
+ }
+
+ switch (status) {
+ case LPFC_SLI_EVENT_STATUS_VALID:
+ return; /* no message if the sfp is okay */
+ case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
+ sprintf(message, "Optics faulted/incorrectly "
+ "installed/not installed - Reseat optics, "
+ "if issue not resolved, replace.");
+ break;
+ case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
+ sprintf(message,
+ "Optics of two types installed - Remove one "
+ "optic or install matching pair of optics.");
+ break;
+ case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
+ sprintf(message, "Incompatible optics - Replace with "
+ "compatible optics for card to function.");
+ break;
+ default:
+ /* firmware is reporting a status we don't know about */
+ sprintf(message, "Unknown event status x%02x", status);
+ break;
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3176 Misconfigured Physical Port - "
+ "Port Name %c %s\n", port_name, message);
+ break;
+ case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3192 Remote DPort Test Initiated - "
+ "Event Data1:x%08x Event Data2: x%08x\n",
+ acqe_sli->event_data1, acqe_sli->event_data2);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3193 Async SLI event - Event Data1:x%08x Event Data2:"
+ "x%08x SLI Event Type:%d\n",
+ acqe_sli->event_data1, acqe_sli->event_data2,
+ evt_type);
+ break;
+ }
+}
+
+/**
+ * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
+ * @vport: pointer to vport data structure.
+ *
+ * This routine is to perform Clear Virtual Link (CVL) on a vport in
+ * response to a CVL event.
+ *
+ * Return the pointer to the ndlp with the vport if successful, otherwise
+ * return NULL.
+ **/
+static struct lpfc_nodelist *
+lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
+{
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+ struct lpfc_hba *phba;
+
+ if (!vport)
+ return NULL;
+ phba = vport->phba;
+ if (!phba)
+ return NULL;
+ ndlp = lpfc_findnode_did(vport, Fabric_DID);
+ if (!ndlp) {
+ /* Cannot find existing Fabric ndlp, so allocate a new one */
+ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
+ if (!ndlp)
+ return 0;
+ lpfc_nlp_init(vport, ndlp, Fabric_DID);
+ /* Set the node type */
+ ndlp->nlp_type |= NLP_FABRIC;
+ /* Put ndlp onto node list */
+ lpfc_enqueue_node(vport, ndlp);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ /* re-setup ndlp without removing from node list */
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ return 0;
+ }
+ if ((phba->pport->port_state < LPFC_FLOGI) &&
+ (phba->pport->port_state != LPFC_VPORT_FAILED))
+ return NULL;
+ /* If virtual link is not yet instantiated ignore CVL */
+ if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
+ && (vport->port_state != LPFC_VPORT_FAILED))
+ return NULL;
+ shost = lpfc_shost_from_vport(vport);
+ if (!shost)
+ return NULL;
+ lpfc_linkdown_port(vport);
+ lpfc_cleanup_pending_mbox(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_CVL_RCVD;
+ spin_unlock_irq(shost->host_lock);
+
+ return ndlp;
+}
+
+/**
+ * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
+ * @vport: pointer to lpfc hba data structure.
+ *
+ * This routine is to perform Clear Virtual Link (CVL) on all vports in
+ * response to a FCF dead event.
+ **/
+static void
+lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
+ lpfc_sli4_perform_vport_cvl(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+}
+
+/**
+ * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async fcoe completion queue entry.
+ *
+ * This routine is to handle the SLI4 asynchronous fcoe event.
+ **/
+static void
+lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
+ struct lpfc_acqe_fip *acqe_fip)
+{
+ uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
+ int rc;
+ struct lpfc_vport *vport;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+ int active_vlink_present;
+ struct lpfc_vport **vports;
+ int i;
+
+ phba->fc_eventTag = acqe_fip->event_tag;
+ phba->fcoe_eventtag = acqe_fip->event_tag;
+ switch (event_type) {
+ case LPFC_FIP_EVENT_TYPE_NEW_FCF:
+ case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
+ if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
+ LOG_DISCOVERY,
+ "2546 New FCF event, evt_tag:x%x, "
+ "index:x%x\n",
+ acqe_fip->event_tag,
+ acqe_fip->index);
+ else
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
+ LOG_DISCOVERY,
+ "2788 FCF param modified event, "
+ "evt_tag:x%x, index:x%x\n",
+ acqe_fip->event_tag,
+ acqe_fip->index);
+ if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
+ /*
+ * During period of FCF discovery, read the FCF
+ * table record indexed by the event to update
+ * FCF roundrobin failover eligible FCF bmask.
+ */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
+ LOG_DISCOVERY,
+ "2779 Read FCF (x%x) for updating "
+ "roundrobin FCF failover bmask\n",
+ acqe_fip->index);
+ rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
+ }
+
+ /* If the FCF discovery is in progress, do nothing. */
+ spin_lock_irq(&phba->hbalock);
+ if (phba->hba_flag & FCF_TS_INPROG) {
+ spin_unlock_irq(&phba->hbalock);
+ break;
+ }
+ /* If fast FCF failover rescan event is pending, do nothing */
+ if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
+ spin_unlock_irq(&phba->hbalock);
+ break;
+ }
+
+ /* If the FCF has been in discovered state, do nothing. */
+ if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
+ spin_unlock_irq(&phba->hbalock);
+ break;
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Otherwise, scan the entire FCF table and re-discover SAN */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
+ "2770 Start FCF table scan per async FCF "
+ "event, evt_tag:x%x, index:x%x\n",
+ acqe_fip->event_tag, acqe_fip->index);
+ rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
+ LPFC_FCOE_FCF_GET_FIRST);
+ if (rc)
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
+ "2547 Issue FCF scan read FCF mailbox "
+ "command failed (x%x)\n", rc);
+ break;
+
+ case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2548 FCF Table full count 0x%x tag 0x%x\n",
+ bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
+ acqe_fip->event_tag);
+ break;
+
+ case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
+ phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
+ "2549 FCF (x%x) disconnected from network, "
+ "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
+ /*
+ * If we are in the middle of FCF failover process, clear
+ * the corresponding FCF bit in the roundrobin bitmap.
+ */
+ spin_lock_irq(&phba->hbalock);
+ if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
+ spin_unlock_irq(&phba->hbalock);
+ /* Update FLOGI FCF failover eligible FCF bmask */
+ lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
+ break;
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ /* If the event is not for currently used fcf do nothing */
+ if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
+ break;
+
+ /*
+ * Otherwise, request the port to rediscover the entire FCF
+ * table for a fast recovery from case that the current FCF
+ * is no longer valid as we are not in the middle of FCF
+ * failover process already.
+ */
+ spin_lock_irq(&phba->hbalock);
+ /* Mark the fast failover process in progress */
+ phba->fcf.fcf_flag |= FCF_DEAD_DISC;
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
+ "2771 Start FCF fast failover process due to "
+ "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
+ "\n", acqe_fip->event_tag, acqe_fip->index);
+ rc = lpfc_sli4_redisc_fcf_table(phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
+ LOG_DISCOVERY,
+ "2772 Issue FCF rediscover mabilbox "
+ "command failed, fail through to FCF "
+ "dead event\n");
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ /*
+ * Last resort will fail over by treating this
+ * as a link down to FCF registration.
+ */
+ lpfc_sli4_fcf_dead_failthrough(phba);
+ } else {
+ /* Reset FCF roundrobin bmask for new discovery */
+ lpfc_sli4_clear_fcf_rr_bmask(phba);
+ /*
+ * Handling fast FCF failover to a DEAD FCF event is
+ * considered equalivant to receiving CVL to all vports.
+ */
+ lpfc_sli4_perform_all_vport_cvl(phba);
+ }
+ break;
+ case LPFC_FIP_EVENT_TYPE_CVL:
+ phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
+ "2718 Clear Virtual Link Received for VPI 0x%x"
+ " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
+
+ vport = lpfc_find_vport_by_vpid(phba,
+ acqe_fip->index);
+ ndlp = lpfc_sli4_perform_vport_cvl(vport);
+ if (!ndlp)
+ break;
+ active_vlink_present = 0;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL;
+ i++) {
+ if ((!(vports[i]->fc_flag &
+ FC_VPORT_CVL_RCVD)) &&
+ (vports[i]->port_state > LPFC_FDISC)) {
+ active_vlink_present = 1;
+ break;
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ }
+
+ if (active_vlink_present) {
+ /*
+ * If there are other active VLinks present,
+ * re-instantiate the Vlink using FDISC.
+ */
+ mod_timer(&ndlp->nlp_delayfunc,
+ jiffies + msecs_to_jiffies(1000));
+ shost = lpfc_shost_from_vport(vport);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_DELAY_TMO;
+ spin_unlock_irq(shost->host_lock);
+ ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
+ vport->port_state = LPFC_FDISC;
+ } else {
+ /*
+ * Otherwise, we request port to rediscover
+ * the entire FCF table for a fast recovery
+ * from possible case that the current FCF
+ * is no longer valid if we are not already
+ * in the FCF failover process.
+ */
+ spin_lock_irq(&phba->hbalock);
+ if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
+ spin_unlock_irq(&phba->hbalock);
+ break;
+ }
+ /* Mark the fast failover process in progress */
+ phba->fcf.fcf_flag |= FCF_ACVL_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
+ LOG_DISCOVERY,
+ "2773 Start FCF failover per CVL, "
+ "evt_tag:x%x\n", acqe_fip->event_tag);
+ rc = lpfc_sli4_redisc_fcf_table(phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
+ LOG_DISCOVERY,
+ "2774 Issue FCF rediscover "
+ "mabilbox command failed, "
+ "through to CVL event\n");
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ /*
+ * Last resort will be re-try on the
+ * the current registered FCF entry.
+ */
+ lpfc_retry_pport_discovery(phba);
+ } else
+ /*
+ * Reset FCF roundrobin bmask for new
+ * discovery.
+ */
+ lpfc_sli4_clear_fcf_rr_bmask(phba);
+ }
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0288 Unknown FCoE event type 0x%x event tag "
+ "0x%x\n", event_type, acqe_fip->event_tag);
+ break;
+ }
+}
+
+/**
+ * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async dcbx completion queue entry.
+ *
+ * This routine is to handle the SLI4 asynchronous dcbx event.
+ **/
+static void
+lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
+ struct lpfc_acqe_dcbx *acqe_dcbx)
+{
+ phba->fc_eventTag = acqe_dcbx->event_tag;
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0290 The SLI4 DCBX asynchronous event is not "
+ "handled yet\n");
+}
+
+/**
+ * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
+ * @phba: pointer to lpfc hba data structure.
+ * @acqe_link: pointer to the async grp5 completion queue entry.
+ *
+ * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
+ * is an asynchronous notified of a logical link speed change. The Port
+ * reports the logical link speed in units of 10Mbps.
+ **/
+static void
+lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
+ struct lpfc_acqe_grp5 *acqe_grp5)
+{
+ uint16_t prev_ll_spd;
+
+ phba->fc_eventTag = acqe_grp5->event_tag;
+ phba->fcoe_eventtag = acqe_grp5->event_tag;
+ prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
+ phba->sli4_hba.link_state.logical_speed =
+ (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2789 GRP5 Async Event: Updating logical link speed "
+ "from %dMbps to %dMbps\n", prev_ll_spd,
+ phba->sli4_hba.link_state.logical_speed);
+}
+
+/**
+ * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked by the worker thread to process all the pending
+ * SLI4 asynchronous events.
+ **/
+void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+
+ /* First, declare the async event has been handled */
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~ASYNC_EVENT;
+ spin_unlock_irq(&phba->hbalock);
+ /* Now, handle all the async events */
+ while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
+ /* Get the first event from the head of the event queue */
+ spin_lock_irq(&phba->hbalock);
+ list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
+ cq_event, struct lpfc_cq_event, list);
+ spin_unlock_irq(&phba->hbalock);
+ /* Process the asynchronous event */
+ switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
+ case LPFC_TRAILER_CODE_LINK:
+ lpfc_sli4_async_link_evt(phba,
+ &cq_event->cqe.acqe_link);
+ break;
+ case LPFC_TRAILER_CODE_FCOE:
+ lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
+ break;
+ case LPFC_TRAILER_CODE_DCBX:
+ lpfc_sli4_async_dcbx_evt(phba,
+ &cq_event->cqe.acqe_dcbx);
+ break;
+ case LPFC_TRAILER_CODE_GRP5:
+ lpfc_sli4_async_grp5_evt(phba,
+ &cq_event->cqe.acqe_grp5);
+ break;
+ case LPFC_TRAILER_CODE_FC:
+ lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
+ break;
+ case LPFC_TRAILER_CODE_SLI:
+ lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "1804 Invalid asynchrous event code: "
+ "x%x\n", bf_get(lpfc_trailer_code,
+ &cq_event->cqe.mcqe_cmpl));
+ break;
+ }
+ /* Free the completion event processed to the free pool */
+ lpfc_sli4_cq_event_release(phba, cq_event);
+ }
+}
+
+/**
+ * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked by the worker thread to process FCF table
+ * rediscovery pending completion event.
+ **/
+void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
+{
+ int rc;
+
+ spin_lock_irq(&phba->hbalock);
+ /* Clear FCF rediscovery timeout event */
+ phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
+ /* Clear driver fast failover FCF record flag */
+ phba->fcf.failover_rec.flag = 0;
+ /* Set state for FCF fast failover */
+ phba->fcf.fcf_flag |= FCF_REDISC_FOV;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Scan FCF table from the first entry to re-discover SAN */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
+ "2777 Start post-quiescent FCF table scan\n");
+ rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
+ if (rc)
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
+ "2747 Issue FCF scan read FCF mailbox "
+ "command failed 0x%x\n", rc);
+}
+
+/**
+ * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
+ * @phba: pointer to lpfc hba data structure.
+ * @dev_grp: The HBA PCI-Device group number.
+ *
+ * This routine is invoked to set up the per HBA PCI-Device group function
+ * API jump table entries.
+ *
+ * Return: 0 if success, otherwise -ENODEV
+ **/
+int
+lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
+{
+ int rc;
+
+ /* Set up lpfc PCI-device group */
+ phba->pci_dev_grp = dev_grp;
+
+ /* The LPFC_PCI_DEV_OC uses SLI4 */
+ if (dev_grp == LPFC_PCI_DEV_OC)
+ phba->sli_rev = LPFC_SLI_REV4;
+
+ /* Set up device INIT API function jump table */
+ rc = lpfc_init_api_table_setup(phba, dev_grp);
+ if (rc)
+ return -ENODEV;
+ /* Set up SCSI API function jump table */
+ rc = lpfc_scsi_api_table_setup(phba, dev_grp);
+ if (rc)
+ return -ENODEV;
+ /* Set up SLI API function jump table */
+ rc = lpfc_sli_api_table_setup(phba, dev_grp);
+ if (rc)
+ return -ENODEV;
+ /* Set up MBOX API function jump table */
+ rc = lpfc_mbox_api_table_setup(phba, dev_grp);
+ if (rc)
+ return -ENODEV;
+
+ return 0;
+}
+
+/**
+ * lpfc_log_intr_mode - Log the active interrupt mode
+ * @phba: pointer to lpfc hba data structure.
+ * @intr_mode: active interrupt mode adopted.
+ *
+ * This routine it invoked to log the currently used active interrupt mode
+ * to the device.
+ **/
+static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
+{
+ switch (intr_mode) {
+ case 0:
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0470 Enable INTx interrupt mode.\n");
+ break;
+ case 1:
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0481 Enabled MSI interrupt mode.\n");
+ break;
+ case 2:
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0480 Enabled MSI-X interrupt mode.\n");
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0482 Illegal interrupt mode.\n");
+ break;
+ }
+ return;
+}
+
+/**
+ * lpfc_enable_pci_dev - Enable a generic PCI device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the PCI device that is common to all
+ * PCI devices.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_enable_pci_dev(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+ int bars = 0;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ goto out_error;
+ else
+ pdev = phba->pcidev;
+ /* Select PCI BARs */
+ bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ /* Enable PCI device */
+ if (pci_enable_device_mem(pdev))
+ goto out_error;
+ /* Request PCI resource for the device */
+ if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
+ goto out_disable_device;
+ /* Set up device as PCI master and save state for EEH */
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+ pci_save_state(pdev);
+
+ /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
+ if (pci_is_pcie(pdev))
+ pdev->needs_freset = 1;
+
+ return 0;
+
+out_disable_device:
+ pci_disable_device(pdev);
+out_error:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1401 Failed to enable pci device, bars:x%x\n", bars);
+ return -ENODEV;
+}
+
+/**
+ * lpfc_disable_pci_dev - Disable a generic PCI device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the PCI device that is common to all
+ * PCI devices.
+ **/
+static void
+lpfc_disable_pci_dev(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+ int bars;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ return;
+ else
+ pdev = phba->pcidev;
+ /* Select PCI BARs */
+ bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ /* Release PCI resource and disable PCI device */
+ pci_release_selected_regions(pdev, bars);
+ pci_disable_device(pdev);
+
+ return;
+}
+
+/**
+ * lpfc_reset_hba - Reset a hba
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to reset a hba device. It brings the HBA
+ * offline, performs a board restart, and then brings the board back
+ * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
+ * on outstanding mailbox commands.
+ **/
+void
+lpfc_reset_hba(struct lpfc_hba *phba)
+{
+ /* If resets are disabled then set error state and return. */
+ if (!phba->cfg_enable_hba_reset) {
+ phba->link_state = LPFC_HBA_ERROR;
+ return;
+ }
+ if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ else
+ lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+ lpfc_online(phba);
+ lpfc_unblock_mgmt_io(phba);
+}
+
+/**
+ * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This function enables the PCI SR-IOV virtual functions to a physical
+ * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
+ * enable the number of virtual functions to the physical function. As
+ * not all devices support SR-IOV, the return code from the pci_enable_sriov()
+ * API call does not considered as an error condition for most of the device.
+ **/
+uint16_t
+lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev = phba->pcidev;
+ uint16_t nr_virtfn;
+ int pos;
+
+ pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
+ if (pos == 0)
+ return 0;
+
+ pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
+ return nr_virtfn;
+}
+
+/**
+ * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
+ * @phba: pointer to lpfc hba data structure.
+ * @nr_vfn: number of virtual functions to be enabled.
+ *
+ * This function enables the PCI SR-IOV virtual functions to a physical
+ * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
+ * enable the number of virtual functions to the physical function. As
+ * not all devices support SR-IOV, the return code from the pci_enable_sriov()
+ * API call does not considered as an error condition for most of the device.
+ **/
+int
+lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
+{
+ struct pci_dev *pdev = phba->pcidev;
+ uint16_t max_nr_vfn;
+ int rc;
+
+ max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
+ if (nr_vfn > max_nr_vfn) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3057 Requested vfs (%d) greater than "
+ "supported vfs (%d)", nr_vfn, max_nr_vfn);
+ return -EINVAL;
+ }
+
+ rc = pci_enable_sriov(pdev, nr_vfn);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2806 Failed to enable sriov on this device "
+ "with vfn number nr_vf:%d, rc:%d\n",
+ nr_vfn, rc);
+ } else
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2807 Successful enable sriov on this device "
+ "with vfn number nr_vf:%d\n", nr_vfn);
+ return rc;
+}
+
+/**
+ * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the driver internal resources specific to
+ * support the SLI-3 HBA device it attached to.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli;
+ int rc;
+
+ /*
+ * Initialize timers used by driver
+ */
+
+ /* Heartbeat timer */
+ init_timer(&phba->hb_tmofunc);
+ phba->hb_tmofunc.function = lpfc_hb_timeout;
+ phba->hb_tmofunc.data = (unsigned long)phba;
+
+ psli = &phba->sli;
+ /* MBOX heartbeat timer */
+ init_timer(&psli->mbox_tmo);
+ psli->mbox_tmo.function = lpfc_mbox_timeout;
+ psli->mbox_tmo.data = (unsigned long) phba;
+ /* FCP polling mode timer */
+ init_timer(&phba->fcp_poll_timer);
+ phba->fcp_poll_timer.function = lpfc_poll_timeout;
+ phba->fcp_poll_timer.data = (unsigned long) phba;
+ /* Fabric block timer */
+ init_timer(&phba->fabric_block_timer);
+ phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
+ phba->fabric_block_timer.data = (unsigned long) phba;
+ /* EA polling mode timer */
+ init_timer(&phba->eratt_poll);
+ phba->eratt_poll.function = lpfc_poll_eratt;
+ phba->eratt_poll.data = (unsigned long) phba;
+
+ /* Host attention work mask setup */
+ phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
+ phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
+
+ /* Get all the module params for configuring this host */
+ lpfc_get_cfgparam(phba);
+ if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
+ phba->menlo_flag |= HBA_MENLO_SUPPORT;
+ /* check for menlo minimum sg count */
+ if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
+ phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
+ }
+
+ if (!phba->sli.ring)
+ phba->sli.ring = (struct lpfc_sli_ring *)
+ kzalloc(LPFC_SLI3_MAX_RING *
+ sizeof(struct lpfc_sli_ring), GFP_KERNEL);
+ if (!phba->sli.ring)
+ return -ENOMEM;
+
+ /*
+ * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
+ * used to create the sg_dma_buf_pool must be dynamically calculated.
+ */
+
+ /* Initialize the host templates the configured values. */
+ lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+ lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+
+ /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
+ if (phba->cfg_enable_bg) {
+ /*
+ * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
+ * the FCP rsp, and a BDE for each. Sice we have no control
+ * over how many protection data segments the SCSI Layer
+ * will hand us (ie: there could be one for every block
+ * in the IO), we just allocate enough BDEs to accomidate
+ * our max amount and we need to limit lpfc_sg_seg_cnt to
+ * minimize the risk of running out.
+ */
+ phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
+ sizeof(struct fcp_rsp) +
+ (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
+
+ if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
+ phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
+
+ /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
+ phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
+ } else {
+ /*
+ * The scsi_buf for a regular I/O will hold the FCP cmnd,
+ * the FCP rsp, a BDE for each, and a BDE for up to
+ * cfg_sg_seg_cnt data segments.
+ */
+ phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
+ sizeof(struct fcp_rsp) +
+ ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
+
+ /* Total BDEs in BPL for scsi_sg_list */
+ phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
+ }
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
+ "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
+ phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
+ phba->cfg_total_seg_cnt);
+
+ phba->max_vpi = LPFC_MAX_VPI;
+ /* This will be set to correct value after config_port mbox */
+ phba->max_vports = 0;
+
+ /*
+ * Initialize the SLI Layer to run with lpfc HBAs.
+ */
+ lpfc_sli_setup(phba);
+ lpfc_sli_queue_setup(phba);
+
+ /* Allocate device driver memory */
+ if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
+ return -ENOMEM;
+
+ /*
+ * Enable sr-iov virtual functions if supported and configured
+ * through the module parameter.
+ */
+ if (phba->cfg_sriov_nr_virtfn > 0) {
+ rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
+ phba->cfg_sriov_nr_virtfn);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2808 Requested number of SR-IOV "
+ "virtual functions (%d) is not "
+ "supported\n",
+ phba->cfg_sriov_nr_virtfn);
+ phba->cfg_sriov_nr_virtfn = 0;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the driver internal resources set up
+ * specific for supporting the SLI-3 HBA device it attached to.
+ **/
+static void
+lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
+{
+ /* Free device driver memory allocated */
+ lpfc_mem_free_all(phba);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the driver internal resources specific to
+ * support the SLI-4 HBA device it attached to.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
+{
+ struct lpfc_vector_map_info *cpup;
+ struct lpfc_sli *psli;
+ LPFC_MBOXQ_t *mboxq;
+ int rc, i, hbq_count, max_buf_size;
+ uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
+ struct lpfc_mqe *mqe;
+ int longs;
+ int fof_vectors = 0;
+
+ /* Get all the module params for configuring this host */
+ lpfc_get_cfgparam(phba);
+
+ /* Before proceed, wait for POST done and device ready */
+ rc = lpfc_sli4_post_status_check(phba);
+ if (rc)
+ return -ENODEV;
+
+ /*
+ * Initialize timers used by driver
+ */
+
+ /* Heartbeat timer */
+ init_timer(&phba->hb_tmofunc);
+ phba->hb_tmofunc.function = lpfc_hb_timeout;
+ phba->hb_tmofunc.data = (unsigned long)phba;
+ init_timer(&phba->rrq_tmr);
+ phba->rrq_tmr.function = lpfc_rrq_timeout;
+ phba->rrq_tmr.data = (unsigned long)phba;
+
+ psli = &phba->sli;
+ /* MBOX heartbeat timer */
+ init_timer(&psli->mbox_tmo);
+ psli->mbox_tmo.function = lpfc_mbox_timeout;
+ psli->mbox_tmo.data = (unsigned long) phba;
+ /* Fabric block timer */
+ init_timer(&phba->fabric_block_timer);
+ phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
+ phba->fabric_block_timer.data = (unsigned long) phba;
+ /* EA polling mode timer */
+ init_timer(&phba->eratt_poll);
+ phba->eratt_poll.function = lpfc_poll_eratt;
+ phba->eratt_poll.data = (unsigned long) phba;
+ /* FCF rediscover timer */
+ init_timer(&phba->fcf.redisc_wait);
+ phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
+ phba->fcf.redisc_wait.data = (unsigned long)phba;
+
+ /*
+ * Control structure for handling external multi-buffer mailbox
+ * command pass-through.
+ */
+ memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
+ sizeof(struct lpfc_mbox_ext_buf_ctx));
+ INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
+
+ phba->max_vpi = LPFC_MAX_VPI;
+
+ /* This will be set to correct value after the read_config mbox */
+ phba->max_vports = 0;
+
+ /* Program the default value of vlan_id and fc_map */
+ phba->valid_vlan = 0;
+ phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
+ phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
+ phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
+
+ /*
+ * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
+ * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
+ */
+ if (!phba->sli.ring)
+ phba->sli.ring = kzalloc(
+ (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
+ sizeof(struct lpfc_sli_ring), GFP_KERNEL);
+ if (!phba->sli.ring)
+ return -ENOMEM;
+
+ /*
+ * It doesn't matter what family our adapter is in, we are
+ * limited to 2 Pages, 512 SGEs, for our SGL.
+ * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
+ */
+ max_buf_size = (2 * SLI4_PAGE_SIZE);
+ if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
+ phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
+
+ /*
+ * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
+ * used to create the sg_dma_buf_pool must be dynamically calculated.
+ */
+
+ if (phba->cfg_enable_bg) {
+ /*
+ * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
+ * the FCP rsp, and a SGE for each. Sice we have no control
+ * over how many protection data segments the SCSI Layer
+ * will hand us (ie: there could be one for every block
+ * in the IO), we just allocate enough SGEs to accomidate
+ * our max amount and we need to limit lpfc_sg_seg_cnt to
+ * minimize the risk of running out.
+ */
+ phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
+ sizeof(struct fcp_rsp) + max_buf_size;
+
+ /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
+ phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
+
+ if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
+ phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
+ } else {
+ /*
+ * The scsi_buf for a regular I/O will hold the FCP cmnd,
+ * the FCP rsp, a SGE for each, and a SGE for up to
+ * cfg_sg_seg_cnt data segments.
+ */
+ phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
+ sizeof(struct fcp_rsp) +
+ ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
+
+ /* Total SGEs for scsi_sg_list */
+ phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
+ /*
+ * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
+ * to post 1 page for the SGL.
+ */
+ }
+
+ /* Initialize the host templates with the updated values. */
+ lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+ lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
+
+ if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
+ phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
+ else
+ phba->cfg_sg_dma_buf_size =
+ SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
+ "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
+ phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
+ phba->cfg_total_seg_cnt);
+
+ /* Initialize buffer queue management fields */
+ hbq_count = lpfc_sli_hbq_count();
+ for (i = 0; i < hbq_count; ++i)
+ INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
+ INIT_LIST_HEAD(&phba->rb_pend_list);
+ phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
+ phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
+
+ /*
+ * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
+ */
+ /* Initialize the Abort scsi buffer list used by driver */
+ spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
+ /* This abort list used by worker thread */
+ spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
+
+ /*
+ * Initialize driver internal slow-path work queues
+ */
+
+ /* Driver internel slow-path CQ Event pool */
+ INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
+ /* Response IOCB work queue list */
+ INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
+ /* Asynchronous event CQ Event work queue list */
+ INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
+ /* Fast-path XRI aborted CQ Event work queue list */
+ INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
+ /* Slow-path XRI aborted CQ Event work queue list */
+ INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
+ /* Receive queue CQ Event work queue list */
+ INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
+
+ /* Initialize extent block lists. */
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
+ INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
+
+ /* Initialize the driver internal SLI layer lists. */
+ lpfc_sli_setup(phba);
+ lpfc_sli_queue_setup(phba);
+
+ /* Allocate device driver memory */
+ rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
+ if (rc)
+ return -ENOMEM;
+
+ /* IF Type 2 ports get initialized now. */
+ if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
+ LPFC_SLI_INTF_IF_TYPE_2) {
+ rc = lpfc_pci_function_reset(phba);
+ if (unlikely(rc))
+ return -ENODEV;
+ phba->temp_sensor_support = 1;
+ }
+
+ /* Create the bootstrap mailbox command */
+ rc = lpfc_create_bootstrap_mbox(phba);
+ if (unlikely(rc))
+ goto out_free_mem;
+
+ /* Set up the host's endian order with the device. */
+ rc = lpfc_setup_endian_order(phba);
+ if (unlikely(rc))
+ goto out_free_bsmbx;
+
+ /* Set up the hba's configuration parameters. */
+ rc = lpfc_sli4_read_config(phba);
+ if (unlikely(rc))
+ goto out_free_bsmbx;
+ rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
+ if (unlikely(rc))
+ goto out_free_bsmbx;
+
+ /* IF Type 0 ports get initialized now. */
+ if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
+ LPFC_SLI_INTF_IF_TYPE_0) {
+ rc = lpfc_pci_function_reset(phba);
+ if (unlikely(rc))
+ goto out_free_bsmbx;
+ }
+
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL);
+ if (!mboxq) {
+ rc = -ENOMEM;
+ goto out_free_bsmbx;
+ }
+
+ /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
+ lpfc_supported_pages(mboxq);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ if (!rc) {
+ mqe = &mboxq->u.mqe;
+ memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
+ LPFC_MAX_SUPPORTED_PAGES);
+ for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
+ switch (pn_page[i]) {
+ case LPFC_SLI4_PARAMETERS:
+ phba->sli4_hba.pc_sli4_params.supported = 1;
+ break;
+ default:
+ break;
+ }
+ }
+ /* Read the port's SLI4 Parameters capabilities if supported. */
+ if (phba->sli4_hba.pc_sli4_params.supported)
+ rc = lpfc_pc_sli4_params_get(phba, mboxq);
+ if (rc) {
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ rc = -EIO;
+ goto out_free_bsmbx;
+ }
+ }
+ /*
+ * Get sli4 parameters that override parameters from Port capabilities.
+ * If this call fails, it isn't critical unless the SLI4 parameters come
+ * back in conflict.
+ */
+ rc = lpfc_get_sli4_parameters(phba, mboxq);
+ if (rc) {
+ if (phba->sli4_hba.extents_in_use &&
+ phba->sli4_hba.rpi_hdrs_in_use) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2999 Unsupported SLI4 Parameters "
+ "Extents and RPI headers enabled.\n");
+ goto out_free_bsmbx;
+ }
+ }
+ mempool_free(mboxq, phba->mbox_mem_pool);
+
+ /* Verify OAS is supported */
+ lpfc_sli4_oas_verify(phba);
+ if (phba->cfg_fof)
+ fof_vectors = 1;
+
+ /* Verify all the SLI4 queues */
+ rc = lpfc_sli4_queue_verify(phba);
+ if (rc)
+ goto out_free_bsmbx;
+
+ /* Create driver internal CQE event pool */
+ rc = lpfc_sli4_cq_event_pool_create(phba);
+ if (rc)
+ goto out_free_bsmbx;
+
+ /* Initialize sgl lists per host */
+ lpfc_init_sgl_list(phba);
+
+ /* Allocate and initialize active sgl array */
+ rc = lpfc_init_active_sgl_array(phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1430 Failed to initialize sgl list.\n");
+ goto out_destroy_cq_event_pool;
+ }
+ rc = lpfc_sli4_init_rpi_hdrs(phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1432 Failed to initialize rpi headers.\n");
+ goto out_free_active_sgl;
+ }
+
+ /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
+ longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
+ phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
+ GFP_KERNEL);
+ if (!phba->fcf.fcf_rr_bmask) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2759 Failed allocate memory for FCF round "
+ "robin failover bmask\n");
+ rc = -ENOMEM;
+ goto out_remove_rpi_hdrs;
+ }
+
+ phba->sli4_hba.fcp_eq_hdl =
+ kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
+ (fof_vectors + phba->cfg_fcp_io_channel)),
+ GFP_KERNEL);
+ if (!phba->sli4_hba.fcp_eq_hdl) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2572 Failed allocate memory for "
+ "fast-path per-EQ handle array\n");
+ rc = -ENOMEM;
+ goto out_free_fcf_rr_bmask;
+ }
+
+ phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
+ (fof_vectors +
+ phba->cfg_fcp_io_channel)), GFP_KERNEL);
+ if (!phba->sli4_hba.msix_entries) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2573 Failed allocate memory for msi-x "
+ "interrupt vector entries\n");
+ rc = -ENOMEM;
+ goto out_free_fcp_eq_hdl;
+ }
+
+ phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
+ phba->sli4_hba.num_present_cpu),
+ GFP_KERNEL);
+ if (!phba->sli4_hba.cpu_map) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3327 Failed allocate memory for msi-x "
+ "interrupt vector mapping\n");
+ rc = -ENOMEM;
+ goto out_free_msix;
+ }
+ if (lpfc_used_cpu == NULL) {
+ lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
+ GFP_KERNEL);
+ if (!lpfc_used_cpu) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3335 Failed allocate memory for msi-x "
+ "interrupt vector mapping\n");
+ kfree(phba->sli4_hba.cpu_map);
+ rc = -ENOMEM;
+ goto out_free_msix;
+ }
+ for (i = 0; i < lpfc_present_cpu; i++)
+ lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
+ }
+
+ /* Initialize io channels for round robin */
+ cpup = phba->sli4_hba.cpu_map;
+ rc = 0;
+ for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
+ cpup->channel_id = rc;
+ rc++;
+ if (rc >= phba->cfg_fcp_io_channel)
+ rc = 0;
+ }
+
+ /*
+ * Enable sr-iov virtual functions if supported and configured
+ * through the module parameter.
+ */
+ if (phba->cfg_sriov_nr_virtfn > 0) {
+ rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
+ phba->cfg_sriov_nr_virtfn);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "3020 Requested number of SR-IOV "
+ "virtual functions (%d) is not "
+ "supported\n",
+ phba->cfg_sriov_nr_virtfn);
+ phba->cfg_sriov_nr_virtfn = 0;
+ }
+ }
+
+ return 0;
+
+out_free_msix:
+ kfree(phba->sli4_hba.msix_entries);
+out_free_fcp_eq_hdl:
+ kfree(phba->sli4_hba.fcp_eq_hdl);
+out_free_fcf_rr_bmask:
+ kfree(phba->fcf.fcf_rr_bmask);
+out_remove_rpi_hdrs:
+ lpfc_sli4_remove_rpi_hdrs(phba);
+out_free_active_sgl:
+ lpfc_free_active_sgl(phba);
+out_destroy_cq_event_pool:
+ lpfc_sli4_cq_event_pool_destroy(phba);
+out_free_bsmbx:
+ lpfc_destroy_bootstrap_mbox(phba);
+out_free_mem:
+ lpfc_mem_free(phba);
+ return rc;
+}
+
+/**
+ * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the driver internal resources set up
+ * specific for supporting the SLI-4 HBA device it attached to.
+ **/
+static void
+lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
+{
+ struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
+
+ /* Free memory allocated for msi-x interrupt vector to CPU mapping */
+ kfree(phba->sli4_hba.cpu_map);
+ phba->sli4_hba.num_present_cpu = 0;
+ phba->sli4_hba.num_online_cpu = 0;
+ phba->sli4_hba.curr_disp_cpu = 0;
+
+ /* Free memory allocated for msi-x interrupt vector entries */
+ kfree(phba->sli4_hba.msix_entries);
+
+ /* Free memory allocated for fast-path work queue handles */
+ kfree(phba->sli4_hba.fcp_eq_hdl);
+
+ /* Free the allocated rpi headers. */
+ lpfc_sli4_remove_rpi_hdrs(phba);
+ lpfc_sli4_remove_rpis(phba);
+
+ /* Free eligible FCF index bmask */
+ kfree(phba->fcf.fcf_rr_bmask);
+
+ /* Free the ELS sgl list */
+ lpfc_free_active_sgl(phba);
+ lpfc_free_els_sgl_list(phba);
+
+ /* Free the completion queue EQ event pool */
+ lpfc_sli4_cq_event_release_all(phba);
+ lpfc_sli4_cq_event_pool_destroy(phba);
+
+ /* Release resource identifiers. */
+ lpfc_sli4_dealloc_resource_identifiers(phba);
+
+ /* Free the bsmbx region. */
+ lpfc_destroy_bootstrap_mbox(phba);
+
+ /* Free the SLI Layer memory with SLI4 HBAs */
+ lpfc_mem_free_all(phba);
+
+ /* Free the current connect table */
+ list_for_each_entry_safe(conn_entry, next_conn_entry,
+ &phba->fcf_conn_rec_list, list) {
+ list_del_init(&conn_entry->list);
+ kfree(conn_entry);
+ }
+
+ return;
+}
+
+/**
+ * lpfc_init_api_table_setup - Set up init api function jump table
+ * @phba: The hba struct for which this call is being executed.
+ * @dev_grp: The HBA PCI-Device group number.
+ *
+ * This routine sets up the device INIT interface API function jump table
+ * in @phba struct.
+ *
+ * Returns: 0 - success, -ENODEV - failure.
+ **/
+int
+lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
+{
+ phba->lpfc_hba_init_link = lpfc_hba_init_link;
+ phba->lpfc_hba_down_link = lpfc_hba_down_link;
+ phba->lpfc_selective_reset = lpfc_selective_reset;
+ switch (dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
+ phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
+ phba->lpfc_stop_port = lpfc_stop_port_s3;
+ break;
+ case LPFC_PCI_DEV_OC:
+ phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
+ phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
+ phba->lpfc_stop_port = lpfc_stop_port_s4;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1431 Invalid HBA PCI-device group: 0x%x\n",
+ dev_grp);
+ return -ENODEV;
+ break;
+ }
+ return 0;
+}
+
+/**
+ * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the driver internal resources before the
+ * device specific resource setup to support the HBA device it attached to.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
+{
+ /*
+ * Driver resources common to all SLI revisions
+ */
+ atomic_set(&phba->fast_event_count, 0);
+ spin_lock_init(&phba->hbalock);
+
+ /* Initialize ndlp management spinlock */
+ spin_lock_init(&phba->ndlp_lock);
+
+ INIT_LIST_HEAD(&phba->port_list);
+ INIT_LIST_HEAD(&phba->work_list);
+ init_waitqueue_head(&phba->wait_4_mlo_m_q);
+
+ /* Initialize the wait queue head for the kernel thread */
+ init_waitqueue_head(&phba->work_waitq);
+
+ /* Initialize the scsi buffer list used by driver for scsi IO */
+ spin_lock_init(&phba->scsi_buf_list_get_lock);
+ INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
+ spin_lock_init(&phba->scsi_buf_list_put_lock);
+ INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
+
+ /* Initialize the fabric iocb list */
+ INIT_LIST_HEAD(&phba->fabric_iocb_list);
+
+ /* Initialize list to save ELS buffers */
+ INIT_LIST_HEAD(&phba->elsbuf);
+
+ /* Initialize FCF connection rec list */
+ INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
+
+ /* Initialize OAS configuration list */
+ spin_lock_init(&phba->devicelock);
+ INIT_LIST_HEAD(&phba->luns);
+
+ return 0;
+}
+
+/**
+ * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the driver internal resources after the
+ * device specific resource setup to support the HBA device it attached to.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
+{
+ int error;
+
+ /* Startup the kernel thread for this host adapter. */
+ phba->worker_thread = kthread_run(lpfc_do_work, phba,
+ "lpfc_worker_%d", phba->brd_no);
+ if (IS_ERR(phba->worker_thread)) {
+ error = PTR_ERR(phba->worker_thread);
+ return error;
+ }
+
+ return 0;
+}
+
+/**
+ * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the driver internal resources set up after
+ * the device specific resource setup for supporting the HBA device it
+ * attached to.
+ **/
+static void
+lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
+{
+ /* Stop kernel worker thread */
+ kthread_stop(phba->worker_thread);
+}
+
+/**
+ * lpfc_free_iocb_list - Free iocb list.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to free the driver's IOCB list and memory.
+ **/
+static void
+lpfc_free_iocb_list(struct lpfc_hba *phba)
+{
+ struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
+
+ spin_lock_irq(&phba->hbalock);
+ list_for_each_entry_safe(iocbq_entry, iocbq_next,
+ &phba->lpfc_iocb_list, list) {
+ list_del(&iocbq_entry->list);
+ kfree(iocbq_entry);
+ phba->total_iocbq_bufs--;
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ return;
+}
+
+/**
+ * lpfc_init_iocb_list - Allocate and initialize iocb list.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate and initizlize the driver's IOCB
+ * list and set up the IOCB tag array accordingly.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
+{
+ struct lpfc_iocbq *iocbq_entry = NULL;
+ uint16_t iotag;
+ int i;
+
+ /* Initialize and populate the iocb list per host. */
+ INIT_LIST_HEAD(&phba->lpfc_iocb_list);
+ for (i = 0; i < iocb_count; i++) {
+ iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
+ if (iocbq_entry == NULL) {
+ printk(KERN_ERR "%s: only allocated %d iocbs of "
+ "expected %d count. Unloading driver.\n",
+ __func__, i, LPFC_IOCB_LIST_CNT);
+ goto out_free_iocbq;
+ }
+
+ iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
+ if (iotag == 0) {
+ kfree(iocbq_entry);
+ printk(KERN_ERR "%s: failed to allocate IOTAG. "
+ "Unloading driver.\n", __func__);
+ goto out_free_iocbq;
+ }
+ iocbq_entry->sli4_lxritag = NO_XRI;
+ iocbq_entry->sli4_xritag = NO_XRI;
+
+ spin_lock_irq(&phba->hbalock);
+ list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
+ phba->total_iocbq_bufs++;
+ spin_unlock_irq(&phba->hbalock);
+ }
+
+ return 0;
+
+out_free_iocbq:
+ lpfc_free_iocb_list(phba);
+
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_free_sgl_list - Free a given sgl list.
+ * @phba: pointer to lpfc hba data structure.
+ * @sglq_list: pointer to the head of sgl list.
+ *
+ * This routine is invoked to free a give sgl list and memory.
+ **/
+void
+lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
+{
+ struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
+
+ list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
+ list_del(&sglq_entry->list);
+ lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
+ kfree(sglq_entry);
+ }
+}
+
+/**
+ * lpfc_free_els_sgl_list - Free els sgl list.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to free the driver's els sgl list and memory.
+ **/
+static void
+lpfc_free_els_sgl_list(struct lpfc_hba *phba)
+{
+ LIST_HEAD(sglq_list);
+ struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
+
+ /* Retrieve all els sgls from driver list */
+ spin_lock_irq(&phba->hbalock);
+ spin_lock(&pring->ring_lock);
+ list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
+ spin_unlock(&pring->ring_lock);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Now free the sgl list */
+ lpfc_free_sgl_list(phba, &sglq_list);
+}
+
+/**
+ * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate the driver's active sgl memory.
+ * This array will hold the sglq_entry's for active IOs.
+ **/
+static int
+lpfc_init_active_sgl_array(struct lpfc_hba *phba)
+{
+ int size;
+ size = sizeof(struct lpfc_sglq *);
+ size *= phba->sli4_hba.max_cfg_param.max_xri;
+
+ phba->sli4_hba.lpfc_sglq_active_list =
+ kzalloc(size, GFP_KERNEL);
+ if (!phba->sli4_hba.lpfc_sglq_active_list)
+ return -ENOMEM;
+ return 0;
+}
+
+/**
+ * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to walk through the array of active sglq entries
+ * and free all of the resources.
+ * This is just a place holder for now.
+ **/
+static void
+lpfc_free_active_sgl(struct lpfc_hba *phba)
+{
+ kfree(phba->sli4_hba.lpfc_sglq_active_list);
+}
+
+/**
+ * lpfc_init_sgl_list - Allocate and initialize sgl list.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate and initizlize the driver's sgl
+ * list and set up the sgl xritag tag array accordingly.
+ *
+ **/
+static void
+lpfc_init_sgl_list(struct lpfc_hba *phba)
+{
+ /* Initialize and populate the sglq list per host/VF. */
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
+
+ /* els xri-sgl book keeping */
+ phba->sli4_hba.els_xri_cnt = 0;
+
+ /* scsi xri-buffer book keeping */
+ phba->sli4_hba.scsi_xri_cnt = 0;
+}
+
+/**
+ * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to post rpi header templates to the
+ * port for those SLI4 ports that do not support extents. This routine
+ * posts a PAGE_SIZE memory region to the port to hold up to
+ * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
+ * and should be called only when interrupts are disabled.
+ *
+ * Return codes
+ * 0 - successful
+ * -ERROR - otherwise.
+ **/
+int
+lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
+{
+ int rc = 0;
+ struct lpfc_rpi_hdr *rpi_hdr;
+
+ INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
+ if (!phba->sli4_hba.rpi_hdrs_in_use)
+ return rc;
+ if (phba->sli4_hba.extents_in_use)
+ return -EIO;
+
+ rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
+ if (!rpi_hdr) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0391 Error during rpi post operation\n");
+ lpfc_sli4_remove_rpis(phba);
+ rc = -ENODEV;
+ }
+
+ return rc;
+}
+
+/**
+ * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate a single 4KB memory region to
+ * support rpis and stores them in the phba. This single region
+ * provides support for up to 64 rpis. The region is used globally
+ * by the device.
+ *
+ * Returns:
+ * A valid rpi hdr on success.
+ * A NULL pointer on any failure.
+ **/
+struct lpfc_rpi_hdr *
+lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
+{
+ uint16_t rpi_limit, curr_rpi_range;
+ struct lpfc_dmabuf *dmabuf;
+ struct lpfc_rpi_hdr *rpi_hdr;
+ uint32_t rpi_count;
+
+ /*
+ * If the SLI4 port supports extents, posting the rpi header isn't
+ * required. Set the expected maximum count and let the actual value
+ * get set when extents are fully allocated.
+ */
+ if (!phba->sli4_hba.rpi_hdrs_in_use)
+ return NULL;
+ if (phba->sli4_hba.extents_in_use)
+ return NULL;
+
+ /* The limit on the logical index is just the max_rpi count. */
+ rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
+ phba->sli4_hba.max_cfg_param.max_rpi - 1;
+
+ spin_lock_irq(&phba->hbalock);
+ /*
+ * Establish the starting RPI in this header block. The starting
+ * rpi is normalized to a zero base because the physical rpi is
+ * port based.
+ */
+ curr_rpi_range = phba->sli4_hba.next_rpi;
+ spin_unlock_irq(&phba->hbalock);
+
+ /*
+ * The port has a limited number of rpis. The increment here
+ * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
+ * and to allow the full max_rpi range per port.
+ */
+ if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
+ rpi_count = rpi_limit - curr_rpi_range;
+ else
+ rpi_count = LPFC_RPI_HDR_COUNT;
+
+ if (!rpi_count)
+ return NULL;
+ /*
+ * First allocate the protocol header region for the port. The
+ * port expects a 4KB DMA-mapped memory region that is 4K aligned.
+ */
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!dmabuf)
+ return NULL;
+
+ dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
+ LPFC_HDR_TEMPLATE_SIZE,
+ &dmabuf->phys, GFP_KERNEL);
+ if (!dmabuf->virt) {
+ rpi_hdr = NULL;
+ goto err_free_dmabuf;
+ }
+
+ if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
+ rpi_hdr = NULL;
+ goto err_free_coherent;
+ }
+
+ /* Save the rpi header data for cleanup later. */
+ rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
+ if (!rpi_hdr)
+ goto err_free_coherent;
+
+ rpi_hdr->dmabuf = dmabuf;
+ rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
+ rpi_hdr->page_count = 1;
+ spin_lock_irq(&phba->hbalock);
+
+ /* The rpi_hdr stores the logical index only. */
+ rpi_hdr->start_rpi = curr_rpi_range;
+ list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
+
+ /*
+ * The next_rpi stores the next logical module-64 rpi value used
+ * to post physical rpis in subsequent rpi postings.
+ */
+ phba->sli4_hba.next_rpi += rpi_count;
+ spin_unlock_irq(&phba->hbalock);
+ return rpi_hdr;
+
+ err_free_coherent:
+ dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
+ dmabuf->virt, dmabuf->phys);
+ err_free_dmabuf:
+ kfree(dmabuf);
+ return NULL;
+}
+
+/**
+ * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to remove all memory resources allocated
+ * to support rpis for SLI4 ports not supporting extents. This routine
+ * presumes the caller has released all rpis consumed by fabric or port
+ * logins and is prepared to have the header pages removed.
+ **/
+void
+lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
+{
+ struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
+
+ if (!phba->sli4_hba.rpi_hdrs_in_use)
+ goto exit;
+
+ list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
+ &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
+ list_del(&rpi_hdr->list);
+ dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
+ rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
+ kfree(rpi_hdr->dmabuf);
+ kfree(rpi_hdr);
+ }
+ exit:
+ /* There are no rpis available to the port now. */
+ phba->sli4_hba.next_rpi = 0;
+}
+
+/**
+ * lpfc_hba_alloc - Allocate driver hba data structure for a device.
+ * @pdev: pointer to pci device data structure.
+ *
+ * This routine is invoked to allocate the driver hba data structure for an
+ * HBA device. If the allocation is successful, the phba reference to the
+ * PCI device data structure is set.
+ *
+ * Return codes
+ * pointer to @phba - successful
+ * NULL - error
+ **/
+static struct lpfc_hba *
+lpfc_hba_alloc(struct pci_dev *pdev)
+{
+ struct lpfc_hba *phba;
+
+ /* Allocate memory for HBA structure */
+ phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
+ if (!phba) {
+ dev_err(&pdev->dev, "failed to allocate hba struct\n");
+ return NULL;
+ }
+
+ /* Set reference to PCI device in HBA structure */
+ phba->pcidev = pdev;
+
+ /* Assign an unused board number */
+ phba->brd_no = lpfc_get_instance();
+ if (phba->brd_no < 0) {
+ kfree(phba);
+ return NULL;
+ }
+
+ spin_lock_init(&phba->ct_ev_lock);
+ INIT_LIST_HEAD(&phba->ct_ev_waiters);
+
+ return phba;
+}
+
+/**
+ * lpfc_hba_free - Free driver hba data structure with a device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to free the driver hba data structure with an
+ * HBA device.
+ **/
+static void
+lpfc_hba_free(struct lpfc_hba *phba)
+{
+ /* Release the driver assigned board number */
+ idr_remove(&lpfc_hba_index, phba->brd_no);
+
+ /* Free memory allocated with sli rings */
+ kfree(phba->sli.ring);
+ phba->sli.ring = NULL;
+
+ kfree(phba);
+ return;
+}
+
+/**
+ * lpfc_create_shost - Create hba physical port with associated scsi host.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to create HBA physical port and associate a SCSI
+ * host with it.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_create_shost(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport;
+ struct Scsi_Host *shost;
+
+ /* Initialize HBA FC structure */
+ phba->fc_edtov = FF_DEF_EDTOV;
+ phba->fc_ratov = FF_DEF_RATOV;
+ phba->fc_altov = FF_DEF_ALTOV;
+ phba->fc_arbtov = FF_DEF_ARBTOV;
+
+ atomic_set(&phba->sdev_cnt, 0);
+ vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
+ if (!vport)
+ return -ENODEV;
+
+ shost = lpfc_shost_from_vport(vport);
+ phba->pport = vport;
+ lpfc_debugfs_initialize(vport);
+ /* Put reference to SCSI host to driver's device private data */
+ pci_set_drvdata(phba->pcidev, shost);
+
+ return 0;
+}
+
+/**
+ * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to destroy HBA physical port and the associated
+ * SCSI host.
+ **/
+static void
+lpfc_destroy_shost(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+
+ /* Destroy physical port that associated with the SCSI host */
+ destroy_port(vport);
+
+ return;
+}
+
+/**
+ * lpfc_setup_bg - Setup Block guard structures and debug areas.
+ * @phba: pointer to lpfc hba data structure.
+ * @shost: the shost to be used to detect Block guard settings.
+ *
+ * This routine sets up the local Block guard protocol settings for @shost.
+ * This routine also allocates memory for debugging bg buffers.
+ **/
+static void
+lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
+{
+ uint32_t old_mask;
+ uint32_t old_guard;
+
+ int pagecnt = 10;
+ if (lpfc_prot_mask && lpfc_prot_guard) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "1478 Registering BlockGuard with the "
+ "SCSI layer\n");
+
+ old_mask = lpfc_prot_mask;
+ old_guard = lpfc_prot_guard;
+
+ /* Only allow supported values */
+ lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
+ SHOST_DIX_TYPE0_PROTECTION |
+ SHOST_DIX_TYPE1_PROTECTION);
+ lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
+
+ /* DIF Type 1 protection for profiles AST1/C1 is end to end */
+ if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
+ lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
+
+ if (lpfc_prot_mask && lpfc_prot_guard) {
+ if ((old_mask != lpfc_prot_mask) ||
+ (old_guard != lpfc_prot_guard))
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1475 Registering BlockGuard with the "
+ "SCSI layer: mask %d guard %d\n",
+ lpfc_prot_mask, lpfc_prot_guard);
+
+ scsi_host_set_prot(shost, lpfc_prot_mask);
+ scsi_host_set_guard(shost, lpfc_prot_guard);
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1479 Not Registering BlockGuard with the SCSI "
+ "layer, Bad protection parameters: %d %d\n",
+ old_mask, old_guard);
+ }
+
+ if (!_dump_buf_data) {
+ while (pagecnt) {
+ spin_lock_init(&_dump_buf_lock);
+ _dump_buf_data =
+ (char *) __get_free_pages(GFP_KERNEL, pagecnt);
+ if (_dump_buf_data) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_BG,
+ "9043 BLKGRD: allocated %d pages for "
+ "_dump_buf_data at 0x%p\n",
+ (1 << pagecnt), _dump_buf_data);
+ _dump_buf_data_order = pagecnt;
+ memset(_dump_buf_data, 0,
+ ((1 << PAGE_SHIFT) << pagecnt));
+ break;
+ } else
+ --pagecnt;
+ }
+ if (!_dump_buf_data_order)
+ lpfc_printf_log(phba, KERN_ERR, LOG_BG,
+ "9044 BLKGRD: ERROR unable to allocate "
+ "memory for hexdump\n");
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_BG,
+ "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
+ "\n", _dump_buf_data);
+ if (!_dump_buf_dif) {
+ while (pagecnt) {
+ _dump_buf_dif =
+ (char *) __get_free_pages(GFP_KERNEL, pagecnt);
+ if (_dump_buf_dif) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_BG,
+ "9046 BLKGRD: allocated %d pages for "
+ "_dump_buf_dif at 0x%p\n",
+ (1 << pagecnt), _dump_buf_dif);
+ _dump_buf_dif_order = pagecnt;
+ memset(_dump_buf_dif, 0,
+ ((1 << PAGE_SHIFT) << pagecnt));
+ break;
+ } else
+ --pagecnt;
+ }
+ if (!_dump_buf_dif_order)
+ lpfc_printf_log(phba, KERN_ERR, LOG_BG,
+ "9047 BLKGRD: ERROR unable to allocate "
+ "memory for hexdump\n");
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_BG,
+ "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
+ _dump_buf_dif);
+}
+
+/**
+ * lpfc_post_init_setup - Perform necessary device post initialization setup.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to perform all the necessary post initialization
+ * setup for the device.
+ **/
+static void
+lpfc_post_init_setup(struct lpfc_hba *phba)
+{
+ struct Scsi_Host *shost;
+ struct lpfc_adapter_event_header adapter_event;
+
+ /* Get the default values for Model Name and Description */
+ lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
+
+ /*
+ * hba setup may have changed the hba_queue_depth so we need to
+ * adjust the value of can_queue.
+ */
+ shost = pci_get_drvdata(phba->pcidev);
+ shost->can_queue = phba->cfg_hba_queue_depth - 10;
+ if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
+ lpfc_setup_bg(phba, shost);
+
+ lpfc_host_attrib_init(shost);
+
+ if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+ spin_lock_irq(shost->host_lock);
+ lpfc_poll_start_timer(phba);
+ spin_unlock_irq(shost->host_lock);
+ }
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0428 Perform SCSI scan\n");
+ /* Send board arrival event to upper layer */
+ adapter_event.event_type = FC_REG_ADAPTER_EVENT;
+ adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(adapter_event),
+ (char *) &adapter_event,
+ LPFC_NL_VENDOR_ID);
+ return;
+}
+
+/**
+ * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the PCI device memory space for device
+ * with SLI-3 interface spec.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+ unsigned long bar0map_len, bar2map_len;
+ int i, hbq_count;
+ void *ptr;
+ int error = -ENODEV;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ return error;
+ else
+ pdev = phba->pcidev;
+
+ /* Set the device DMA mask size */
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
+ || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
+ || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
+ return error;
+ }
+ }
+
+ /* Get the bus address of Bar0 and Bar2 and the number of bytes
+ * required by each mapping.
+ */
+ phba->pci_bar0_map = pci_resource_start(pdev, 0);
+ bar0map_len = pci_resource_len(pdev, 0);
+
+ phba->pci_bar2_map = pci_resource_start(pdev, 2);
+ bar2map_len = pci_resource_len(pdev, 2);
+
+ /* Map HBA SLIM to a kernel virtual address. */
+ phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
+ if (!phba->slim_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLIM memory.\n");
+ goto out;
+ }
+
+ /* Map HBA Control Registers to a kernel virtual address. */
+ phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
+ if (!phba->ctrl_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for HBA control registers.\n");
+ goto out_iounmap_slim;
+ }
+
+ /* Allocate memory for SLI-2 structures */
+ phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
+ &phba->slim2p.phys, GFP_KERNEL);
+ if (!phba->slim2p.virt)
+ goto out_iounmap;
+
+ phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
+ phba->mbox_ext = (phba->slim2p.virt +
+ offsetof(struct lpfc_sli2_slim, mbx_ext_words));
+ phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
+ phba->IOCBs = (phba->slim2p.virt +
+ offsetof(struct lpfc_sli2_slim, IOCBs));
+
+ phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
+ lpfc_sli_hbq_size(),
+ &phba->hbqslimp.phys,
+ GFP_KERNEL);
+ if (!phba->hbqslimp.virt)
+ goto out_free_slim;
+
+ hbq_count = lpfc_sli_hbq_count();
+ ptr = phba->hbqslimp.virt;
+ for (i = 0; i < hbq_count; ++i) {
+ phba->hbqs[i].hbq_virt = ptr;
+ INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
+ ptr += (lpfc_hbq_defs[i]->entry_count *
+ sizeof(struct lpfc_hbq_entry));
+ }
+ phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
+ phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
+
+ memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
+
+ INIT_LIST_HEAD(&phba->rb_pend_list);
+
+ phba->MBslimaddr = phba->slim_memmap_p;
+ phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
+ phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
+ phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
+ phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
+
+ return 0;
+
+out_free_slim:
+ dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
+ phba->slim2p.virt, phba->slim2p.phys);
+out_iounmap:
+ iounmap(phba->ctrl_regs_memmap_p);
+out_iounmap_slim:
+ iounmap(phba->slim_memmap_p);
+out:
+ return error;
+}
+
+/**
+ * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the PCI device memory space for device
+ * with SLI-3 interface spec.
+ **/
+static void
+lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ return;
+ else
+ pdev = phba->pcidev;
+
+ /* Free coherent DMA memory allocated */
+ dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
+ phba->hbqslimp.virt, phba->hbqslimp.phys);
+ dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
+ phba->slim2p.virt, phba->slim2p.phys);
+
+ /* I/O memory unmap */
+ iounmap(phba->ctrl_regs_memmap_p);
+ iounmap(phba->slim_memmap_p);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
+ * done and check status.
+ *
+ * Return 0 if successful, otherwise -ENODEV.
+ **/
+int
+lpfc_sli4_post_status_check(struct lpfc_hba *phba)
+{
+ struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
+ struct lpfc_register reg_data;
+ int i, port_error = 0;
+ uint32_t if_type;
+
+ memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
+ memset(&reg_data, 0, sizeof(reg_data));
+ if (!phba->sli4_hba.PSMPHRregaddr)
+ return -ENODEV;
+
+ /* Wait up to 30 seconds for the SLI Port POST done and ready */
+ for (i = 0; i < 3000; i++) {
+ if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
+ &portsmphr_reg.word0) ||
+ (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
+ /* Port has a fatal POST error, break out */
+ port_error = -ENODEV;
+ break;
+ }
+ if (LPFC_POST_STAGE_PORT_READY ==
+ bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
+ break;
+ msleep(10);
+ }
+
+ /*
+ * If there was a port error during POST, then don't proceed with
+ * other register reads as the data may not be valid. Just exit.
+ */
+ if (port_error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1408 Port Failed POST - portsmphr=0x%x, "
+ "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
+ "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
+ portsmphr_reg.word0,
+ bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
+ bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2534 Device Info: SLIFamily=0x%x, "
+ "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
+ "SLIHint_2=0x%x, FT=0x%x\n",
+ bf_get(lpfc_sli_intf_sli_family,
+ &phba->sli4_hba.sli_intf),
+ bf_get(lpfc_sli_intf_slirev,
+ &phba->sli4_hba.sli_intf),
+ bf_get(lpfc_sli_intf_if_type,
+ &phba->sli4_hba.sli_intf),
+ bf_get(lpfc_sli_intf_sli_hint1,
+ &phba->sli4_hba.sli_intf),
+ bf_get(lpfc_sli_intf_sli_hint2,
+ &phba->sli4_hba.sli_intf),
+ bf_get(lpfc_sli_intf_func_type,
+ &phba->sli4_hba.sli_intf));
+ /*
+ * Check for other Port errors during the initialization
+ * process. Fail the load if the port did not come up
+ * correctly.
+ */
+ if_type = bf_get(lpfc_sli_intf_if_type,
+ &phba->sli4_hba.sli_intf);
+ switch (if_type) {
+ case LPFC_SLI_INTF_IF_TYPE_0:
+ phba->sli4_hba.ue_mask_lo =
+ readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
+ phba->sli4_hba.ue_mask_hi =
+ readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
+ uerrlo_reg.word0 =
+ readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
+ uerrhi_reg.word0 =
+ readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
+ if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
+ (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1422 Unrecoverable Error "
+ "Detected during POST "
+ "uerr_lo_reg=0x%x, "
+ "uerr_hi_reg=0x%x, "
+ "ue_mask_lo_reg=0x%x, "
+ "ue_mask_hi_reg=0x%x\n",
+ uerrlo_reg.word0,
+ uerrhi_reg.word0,
+ phba->sli4_hba.ue_mask_lo,
+ phba->sli4_hba.ue_mask_hi);
+ port_error = -ENODEV;
+ }
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_2:
+ /* Final checks. The port status should be clean. */
+ if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
+ &reg_data.word0) ||
+ (bf_get(lpfc_sliport_status_err, &reg_data) &&
+ !bf_get(lpfc_sliport_status_rn, &reg_data))) {
+ phba->work_status[0] =
+ readl(phba->sli4_hba.u.if_type2.
+ ERR1regaddr);
+ phba->work_status[1] =
+ readl(phba->sli4_hba.u.if_type2.
+ ERR2regaddr);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2888 Unrecoverable port error "
+ "following POST: port status reg "
+ "0x%x, port_smphr reg 0x%x, "
+ "error 1=0x%x, error 2=0x%x\n",
+ reg_data.word0,
+ portsmphr_reg.word0,
+ phba->work_status[0],
+ phba->work_status[1]);
+ port_error = -ENODEV;
+ }
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_1:
+ default:
+ break;
+ }
+ }
+ return port_error;
+}
+
+/**
+ * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
+ * @phba: pointer to lpfc hba data structure.
+ * @if_type: The SLI4 interface type getting configured.
+ *
+ * This routine is invoked to set up SLI4 BAR0 PCI config space register
+ * memory map.
+ **/
+static void
+lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
+{
+ switch (if_type) {
+ case LPFC_SLI_INTF_IF_TYPE_0:
+ phba->sli4_hba.u.if_type0.UERRLOregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
+ phba->sli4_hba.u.if_type0.UERRHIregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
+ phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
+ phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
+ phba->sli4_hba.SLIINTFregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_2:
+ phba->sli4_hba.u.if_type2.ERR1regaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER1_OFFSET;
+ phba->sli4_hba.u.if_type2.ERR2regaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER2_OFFSET;
+ phba->sli4_hba.u.if_type2.CTRLregaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_CTL_OFFSET;
+ phba->sli4_hba.u.if_type2.STATUSregaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_STA_OFFSET;
+ phba->sli4_hba.SLIINTFregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
+ phba->sli4_hba.PSMPHRregaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_SEM_OFFSET;
+ phba->sli4_hba.RQDBregaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_ULP0_RQ_DOORBELL;
+ phba->sli4_hba.WQDBregaddr =
+ phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_ULP0_WQ_DOORBELL;
+ phba->sli4_hba.EQCQDBregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
+ phba->sli4_hba.MQDBregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
+ phba->sli4_hba.BMBXregaddr =
+ phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_1:
+ default:
+ dev_printk(KERN_ERR, &phba->pcidev->dev,
+ "FATAL - unsupported SLI4 interface type - %d\n",
+ if_type);
+ break;
+ }
+}
+
+/**
+ * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
+ * memory map.
+ **/
+static void
+lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
+{
+ phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_SLIPORT_IF0_SMPHR;
+ phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_ISR0;
+ phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_IMR0;
+ phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_ISCR0;
+}
+
+/**
+ * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
+ * @phba: pointer to lpfc hba data structure.
+ * @vf: virtual function number
+ *
+ * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
+ * based on the given viftual function number, @vf.
+ *
+ * Return 0 if successful, otherwise -ENODEV.
+ **/
+static int
+lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
+{
+ if (vf > LPFC_VIR_FUNC_MAX)
+ return -ENODEV;
+
+ phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE +
+ LPFC_ULP0_RQ_DOORBELL);
+ phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE +
+ LPFC_ULP0_WQ_DOORBELL);
+ phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
+ phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
+ phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
+ return 0;
+}
+
+/**
+ * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to create the bootstrap mailbox
+ * region consistent with the SLI-4 interface spec. This
+ * routine allocates all memory necessary to communicate
+ * mailbox commands to the port and sets up all alignment
+ * needs. No locks are expected to be held when calling
+ * this routine.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - could not allocated memory.
+ **/
+static int
+lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
+{
+ uint32_t bmbx_size;
+ struct lpfc_dmabuf *dmabuf;
+ struct dma_address *dma_address;
+ uint32_t pa_addr;
+ uint64_t phys_addr;
+
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!dmabuf)
+ return -ENOMEM;
+
+ /*
+ * The bootstrap mailbox region is comprised of 2 parts
+ * plus an alignment restriction of 16 bytes.
+ */
+ bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
+ dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
+ &dmabuf->phys, GFP_KERNEL);
+ if (!dmabuf->virt) {
+ kfree(dmabuf);
+ return -ENOMEM;
+ }
+
+ /*
+ * Initialize the bootstrap mailbox pointers now so that the register
+ * operations are simple later. The mailbox dma address is required
+ * to be 16-byte aligned. Also align the virtual memory as each
+ * maibox is copied into the bmbx mailbox region before issuing the
+ * command to the port.
+ */
+ phba->sli4_hba.bmbx.dmabuf = dmabuf;
+ phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
+
+ phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
+ LPFC_ALIGN_16_BYTE);
+ phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
+ LPFC_ALIGN_16_BYTE);
+
+ /*
+ * Set the high and low physical addresses now. The SLI4 alignment
+ * requirement is 16 bytes and the mailbox is posted to the port
+ * as two 30-bit addresses. The other data is a bit marking whether
+ * the 30-bit address is the high or low address.
+ * Upcast bmbx aphys to 64bits so shift instruction compiles
+ * clean on 32 bit machines.
+ */
+ dma_address = &phba->sli4_hba.bmbx.dma_address;
+ phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
+ pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
+ dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
+ LPFC_BMBX_BIT1_ADDR_HI);
+
+ pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
+ dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
+ LPFC_BMBX_BIT1_ADDR_LO);
+ return 0;
+}
+
+/**
+ * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to teardown the bootstrap mailbox
+ * region and release all host resources. This routine requires
+ * the caller to ensure all mailbox commands recovered, no
+ * additional mailbox comands are sent, and interrupts are disabled
+ * before calling this routine.
+ *
+ **/
+static void
+lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
+{
+ dma_free_coherent(&phba->pcidev->dev,
+ phba->sli4_hba.bmbx.bmbx_size,
+ phba->sli4_hba.bmbx.dmabuf->virt,
+ phba->sli4_hba.bmbx.dmabuf->phys);
+
+ kfree(phba->sli4_hba.bmbx.dmabuf);
+ memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
+}
+
+/**
+ * lpfc_sli4_read_config - Get the config parameters.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to read the configuration parameters from the HBA.
+ * The configuration parameters are used to set the base and maximum values
+ * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
+ * allocation for the port.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_sli4_read_config(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *pmb;
+ struct lpfc_mbx_read_config *rd_config;
+ union lpfc_sli4_cfg_shdr *shdr;
+ uint32_t shdr_status, shdr_add_status;
+ struct lpfc_mbx_get_func_cfg *get_func_cfg;
+ struct lpfc_rsrc_desc_fcfcoe *desc;
+ char *pdesc_0;
+ int length, i, rc = 0, rc2;
+
+ pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2011 Unable to allocate memory for issuing "
+ "SLI_CONFIG_SPECIAL mailbox command\n");
+ return -ENOMEM;
+ }
+
+ lpfc_read_config(phba, pmb);
+
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2012 Mailbox failed , mbxCmd x%x "
+ "READ_CONFIG, mbxStatus x%x\n",
+ bf_get(lpfc_mqe_command, &pmb->u.mqe),
+ bf_get(lpfc_mqe_status, &pmb->u.mqe));
+ rc = -EIO;
+ } else {
+ rd_config = &pmb->u.mqe.un.rd_config;
+ if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
+ phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
+ phba->sli4_hba.lnk_info.lnk_tp =
+ bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
+ phba->sli4_hba.lnk_info.lnk_no =
+ bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3081 lnk_type:%d, lnk_numb:%d\n",
+ phba->sli4_hba.lnk_info.lnk_tp,
+ phba->sli4_hba.lnk_info.lnk_no);
+ } else
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "3082 Mailbox (x%x) returned ldv:x0\n",
+ bf_get(lpfc_mqe_command, &pmb->u.mqe));
+ phba->sli4_hba.extents_in_use =
+ bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
+ phba->sli4_hba.max_cfg_param.max_xri =
+ bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
+ phba->sli4_hba.max_cfg_param.xri_base =
+ bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_vpi =
+ bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.vpi_base =
+ bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_rpi =
+ bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.rpi_base =
+ bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_vfi =
+ bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.vfi_base =
+ bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_fcfi =
+ bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_eq =
+ bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_rq =
+ bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_wq =
+ bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_cq =
+ bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
+ phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
+ phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
+ phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
+ phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
+ phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
+ (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
+ phba->max_vports = phba->max_vpi;
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2003 cfg params Extents? %d "
+ "XRI(B:%d M:%d), "
+ "VPI(B:%d M:%d) "
+ "VFI(B:%d M:%d) "
+ "RPI(B:%d M:%d) "
+ "FCFI(Count:%d)\n",
+ phba->sli4_hba.extents_in_use,
+ phba->sli4_hba.max_cfg_param.xri_base,
+ phba->sli4_hba.max_cfg_param.max_xri,
+ phba->sli4_hba.max_cfg_param.vpi_base,
+ phba->sli4_hba.max_cfg_param.max_vpi,
+ phba->sli4_hba.max_cfg_param.vfi_base,
+ phba->sli4_hba.max_cfg_param.max_vfi,
+ phba->sli4_hba.max_cfg_param.rpi_base,
+ phba->sli4_hba.max_cfg_param.max_rpi,
+ phba->sli4_hba.max_cfg_param.max_fcfi);
+ }
+
+ if (rc)
+ goto read_cfg_out;
+
+ /* Reset the DFT_HBA_Q_DEPTH to the max xri */
+ length = phba->sli4_hba.max_cfg_param.max_xri -
+ lpfc_sli4_get_els_iocb_cnt(phba);
+ if (phba->cfg_hba_queue_depth > length) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "3361 HBA queue depth changed from %d to %d\n",
+ phba->cfg_hba_queue_depth, length);
+ phba->cfg_hba_queue_depth = length;
+ }
+
+ if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
+ LPFC_SLI_INTF_IF_TYPE_2)
+ goto read_cfg_out;
+
+ /* get the pf# and vf# for SLI4 if_type 2 port */
+ length = (sizeof(struct lpfc_mbx_get_func_cfg) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
+ length, LPFC_SLI4_MBX_EMBED);
+
+ rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc2 || shdr_status || shdr_add_status) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3026 Mailbox failed , mbxCmd x%x "
+ "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
+ bf_get(lpfc_mqe_command, &pmb->u.mqe),
+ bf_get(lpfc_mqe_status, &pmb->u.mqe));
+ goto read_cfg_out;
+ }
+
+ /* search for fc_fcoe resrouce descriptor */
+ get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
+
+ pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
+ desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
+ length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
+ if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
+ length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
+ else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
+ goto read_cfg_out;
+
+ for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
+ desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
+ if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
+ bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
+ phba->sli4_hba.iov.pf_number =
+ bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
+ phba->sli4_hba.iov.vf_number =
+ bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
+ break;
+ }
+ }
+
+ if (i < LPFC_RSRC_DESC_MAX_NUM)
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
+ "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
+ phba->sli4_hba.iov.vf_number);
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3028 GET_FUNCTION_CONFIG: failed to find "
+ "Resrouce Descriptor:x%x\n",
+ LPFC_RSRC_DESC_TYPE_FCFCOE);
+
+read_cfg_out:
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return rc;
+}
+
+/**
+ * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to setup the port-side endian order when
+ * the port if_type is 0. This routine has no function for other
+ * if_types.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+static int
+lpfc_setup_endian_order(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mboxq;
+ uint32_t if_type, rc = 0;
+ uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
+ HOST_ENDIAN_HIGH_WORD1};
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ switch (if_type) {
+ case LPFC_SLI_INTF_IF_TYPE_0:
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0492 Unable to allocate memory for "
+ "issuing SLI_CONFIG_SPECIAL mailbox "
+ "command\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * The SLI4_CONFIG_SPECIAL mailbox command requires the first
+ * two words to contain special data values and no other data.
+ */
+ memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
+ memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0493 SLI_CONFIG_SPECIAL mailbox "
+ "failed with status x%x\n",
+ rc);
+ rc = -EIO;
+ }
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_2:
+ case LPFC_SLI_INTF_IF_TYPE_1:
+ default:
+ break;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to check the user settable queue counts for EQs and
+ * CQs. after this routine is called the counts will be set to valid values that
+ * adhere to the constraints of the system's interrupt vectors and the port's
+ * queue resources.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ **/
+static int
+lpfc_sli4_queue_verify(struct lpfc_hba *phba)
+{
+ int cfg_fcp_io_channel;
+ uint32_t cpu;
+ uint32_t i = 0;
+ int fof_vectors = phba->cfg_fof ? 1 : 0;
+
+ /*
+ * Sanity check for configured queue parameters against the run-time
+ * device parameters
+ */
+
+ /* Sanity check on HBA EQ parameters */
+ cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
+
+ /* It doesn't make sense to have more io channels then online CPUs */
+ for_each_present_cpu(cpu) {
+ if (cpu_online(cpu))
+ i++;
+ }
+ phba->sli4_hba.num_online_cpu = i;
+ phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
+ phba->sli4_hba.curr_disp_cpu = 0;
+
+ if (i < cfg_fcp_io_channel) {
+ lpfc_printf_log(phba,
+ KERN_ERR, LOG_INIT,
+ "3188 Reducing IO channels to match number of "
+ "online CPUs: from %d to %d\n",
+ cfg_fcp_io_channel, i);
+ cfg_fcp_io_channel = i;
+ }
+
+ if (cfg_fcp_io_channel + fof_vectors >
+ phba->sli4_hba.max_cfg_param.max_eq) {
+ if (phba->sli4_hba.max_cfg_param.max_eq <
+ LPFC_FCP_IO_CHAN_MIN) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2574 Not enough EQs (%d) from the "
+ "pci function for supporting FCP "
+ "EQs (%d)\n",
+ phba->sli4_hba.max_cfg_param.max_eq,
+ phba->cfg_fcp_io_channel);
+ goto out_error;
+ }
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2575 Reducing IO channels to match number of "
+ "available EQs: from %d to %d\n",
+ cfg_fcp_io_channel,
+ phba->sli4_hba.max_cfg_param.max_eq);
+ cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
+ fof_vectors;
+ }
+
+ /* The actual number of FCP event queues adopted */
+ phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
+
+ /* Get EQ depth from module parameter, fake the default for now */
+ phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
+ phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
+
+ /* Get CQ depth from module parameter, fake the default for now */
+ phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
+ phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
+
+ return 0;
+out_error:
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_sli4_queue_create - Create all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
+ * operation. For each SLI4 queue type, the parameters such as queue entry
+ * count (queue depth) shall be taken from the module parameter. For now,
+ * we just use some constant number as place holder.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No availble memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_sli4_queue_create(struct lpfc_hba *phba)
+{
+ struct lpfc_queue *qdesc;
+ int idx;
+
+ /*
+ * Create HBA Record arrays.
+ */
+ if (!phba->cfg_fcp_io_channel)
+ return -ERANGE;
+
+ phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
+ phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
+ phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
+ phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
+ phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
+ phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
+
+ phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
+ phba->cfg_fcp_io_channel), GFP_KERNEL);
+ if (!phba->sli4_hba.hba_eq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2576 Failed allocate memory for "
+ "fast-path EQ record array\n");
+ goto out_error;
+ }
+
+ phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
+ phba->cfg_fcp_io_channel), GFP_KERNEL);
+ if (!phba->sli4_hba.fcp_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2577 Failed allocate memory for fast-path "
+ "CQ record array\n");
+ goto out_error;
+ }
+
+ phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
+ phba->cfg_fcp_io_channel), GFP_KERNEL);
+ if (!phba->sli4_hba.fcp_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2578 Failed allocate memory for fast-path "
+ "WQ record array\n");
+ goto out_error;
+ }
+
+ /*
+ * Since the first EQ can have multiple CQs associated with it,
+ * this array is used to quickly see if we have a FCP fast-path
+ * CQ match.
+ */
+ phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
+ phba->cfg_fcp_io_channel), GFP_KERNEL);
+ if (!phba->sli4_hba.fcp_cq_map) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2545 Failed allocate memory for fast-path "
+ "CQ map\n");
+ goto out_error;
+ }
+
+ /*
+ * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
+ * how many EQs to create.
+ */
+ for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+
+ /* Create EQs */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
+ phba->sli4_hba.eq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0497 Failed allocate EQ (%d)\n", idx);
+ goto out_error;
+ }
+ phba->sli4_hba.hba_eq[idx] = qdesc;
+
+ /* Create Fast Path FCP CQs */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0499 Failed allocate fast-path FCP "
+ "CQ (%d)\n", idx);
+ goto out_error;
+ }
+ phba->sli4_hba.fcp_cq[idx] = qdesc;
+
+ /* Create Fast Path FCP WQs */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+ phba->sli4_hba.wq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0503 Failed allocate fast-path FCP "
+ "WQ (%d)\n", idx);
+ goto out_error;
+ }
+ phba->sli4_hba.fcp_wq[idx] = qdesc;
+ }
+
+
+ /*
+ * Create Slow Path Completion Queues (CQs)
+ */
+
+ /* Create slow-path Mailbox Command Complete Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0500 Failed allocate slow-path mailbox CQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.mbx_cq = qdesc;
+
+ /* Create slow-path ELS Complete Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0501 Failed allocate slow-path ELS CQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.els_cq = qdesc;
+
+
+ /*
+ * Create Slow Path Work Queues (WQs)
+ */
+
+ /* Create Mailbox Command Queue */
+
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
+ phba->sli4_hba.mq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0505 Failed allocate slow-path MQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.mbx_wq = qdesc;
+
+ /*
+ * Create ELS Work Queues
+ */
+
+ /* Create slow-path ELS Work Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+ phba->sli4_hba.wq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0504 Failed allocate slow-path ELS WQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.els_wq = qdesc;
+
+ /*
+ * Create Receive Queue (RQ)
+ */
+
+ /* Create Receive Queue for header */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
+ phba->sli4_hba.rq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0506 Failed allocate receive HRQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.hdr_rq = qdesc;
+
+ /* Create Receive Queue for data */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
+ phba->sli4_hba.rq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0507 Failed allocate receive DRQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.dat_rq = qdesc;
+
+ /* Create the Queues needed for Flash Optimized Fabric operations */
+ if (phba->cfg_fof)
+ lpfc_fof_queue_create(phba);
+ return 0;
+
+out_error:
+ lpfc_sli4_queue_destroy(phba);
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release all the SLI4 queues with the FCoE HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+void
+lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
+{
+ int idx;
+
+ if (phba->cfg_fof)
+ lpfc_fof_queue_destroy(phba);
+
+ if (phba->sli4_hba.hba_eq != NULL) {
+ /* Release HBA event queue */
+ for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+ if (phba->sli4_hba.hba_eq[idx] != NULL) {
+ lpfc_sli4_queue_free(
+ phba->sli4_hba.hba_eq[idx]);
+ phba->sli4_hba.hba_eq[idx] = NULL;
+ }
+ }
+ kfree(phba->sli4_hba.hba_eq);
+ phba->sli4_hba.hba_eq = NULL;
+ }
+
+ if (phba->sli4_hba.fcp_cq != NULL) {
+ /* Release FCP completion queue */
+ for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+ if (phba->sli4_hba.fcp_cq[idx] != NULL) {
+ lpfc_sli4_queue_free(
+ phba->sli4_hba.fcp_cq[idx]);
+ phba->sli4_hba.fcp_cq[idx] = NULL;
+ }
+ }
+ kfree(phba->sli4_hba.fcp_cq);
+ phba->sli4_hba.fcp_cq = NULL;
+ }
+
+ if (phba->sli4_hba.fcp_wq != NULL) {
+ /* Release FCP work queue */
+ for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+ if (phba->sli4_hba.fcp_wq[idx] != NULL) {
+ lpfc_sli4_queue_free(
+ phba->sli4_hba.fcp_wq[idx]);
+ phba->sli4_hba.fcp_wq[idx] = NULL;
+ }
+ }
+ kfree(phba->sli4_hba.fcp_wq);
+ phba->sli4_hba.fcp_wq = NULL;
+ }
+
+ /* Release FCP CQ mapping array */
+ if (phba->sli4_hba.fcp_cq_map != NULL) {
+ kfree(phba->sli4_hba.fcp_cq_map);
+ phba->sli4_hba.fcp_cq_map = NULL;
+ }
+
+ /* Release mailbox command work queue */
+ if (phba->sli4_hba.mbx_wq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
+ phba->sli4_hba.mbx_wq = NULL;
+ }
+
+ /* Release ELS work queue */
+ if (phba->sli4_hba.els_wq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
+ phba->sli4_hba.els_wq = NULL;
+ }
+
+ /* Release unsolicited receive queue */
+ if (phba->sli4_hba.hdr_rq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
+ phba->sli4_hba.hdr_rq = NULL;
+ }
+ if (phba->sli4_hba.dat_rq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
+ phba->sli4_hba.dat_rq = NULL;
+ }
+
+ /* Release ELS complete queue */
+ if (phba->sli4_hba.els_cq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
+ phba->sli4_hba.els_cq = NULL;
+ }
+
+ /* Release mailbox command complete queue */
+ if (phba->sli4_hba.mbx_cq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
+ phba->sli4_hba.mbx_cq = NULL;
+ }
+
+ return;
+}
+
+/**
+ * lpfc_sli4_queue_setup - Set up all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_sli4_queue_setup(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+ int rc = -ENOMEM;
+ int fcp_eqidx, fcp_cqidx, fcp_wqidx;
+ int fcp_cq_index = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+ LPFC_MBOXQ_t *mboxq;
+ uint32_t length;
+
+ /* Check for dual-ULP support */
+ mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3249 Unable to allocate memory for "
+ "QUERY_FW_CFG mailbox command\n");
+ return -ENOMEM;
+ }
+ length = (sizeof(struct lpfc_mbx_query_fw_config) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_QUERY_FW_CFG,
+ length, LPFC_SLI4_MBX_EMBED);
+
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3250 QUERY_FW_CFG mailbox failed with status "
+ "x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ rc = -ENXIO;
+ goto out_error;
+ }
+
+ phba->sli4_hba.fw_func_mode =
+ mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
+ phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
+ phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
+ "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
+ phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
+
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+
+ /*
+ * Set up HBA Event Queues (EQs)
+ */
+
+ /* Set up HBA event queue */
+ if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3147 Fast-path EQs not allocated\n");
+ rc = -ENOMEM;
+ goto out_error;
+ }
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
+ if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0522 Fast-path EQ (%d) not "
+ "allocated\n", fcp_eqidx);
+ rc = -ENOMEM;
+ goto out_destroy_hba_eq;
+ }
+ rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
+ (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0523 Failed setup of fast-path EQ "
+ "(%d), rc = 0x%x\n", fcp_eqidx,
+ (uint32_t)rc);
+ goto out_destroy_hba_eq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2584 HBA EQ setup: "
+ "queue[%d]-id=%d\n", fcp_eqidx,
+ phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
+ }
+
+ /* Set up fast-path FCP Response Complete Queue */
+ if (!phba->sli4_hba.fcp_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3148 Fast-path FCP CQ array not "
+ "allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_hba_eq;
+ }
+
+ for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
+ if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0526 Fast-path FCP CQ (%d) not "
+ "allocated\n", fcp_cqidx);
+ rc = -ENOMEM;
+ goto out_destroy_fcp_cq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
+ phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0527 Failed setup of fast-path FCP "
+ "CQ (%d), rc = 0x%x\n", fcp_cqidx,
+ (uint32_t)rc);
+ goto out_destroy_fcp_cq;
+ }
+
+ /* Setup fcp_cq_map for fast lookup */
+ phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
+ phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2588 FCP CQ setup: cq[%d]-id=%d, "
+ "parent seq[%d]-id=%d\n",
+ fcp_cqidx,
+ phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
+ fcp_cqidx,
+ phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
+ }
+
+ /* Set up fast-path FCP Work Queue */
+ if (!phba->sli4_hba.fcp_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3149 Fast-path FCP WQ array not "
+ "allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_fcp_cq;
+ }
+
+ for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
+ if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0534 Fast-path FCP WQ (%d) not "
+ "allocated\n", fcp_wqidx);
+ rc = -ENOMEM;
+ goto out_destroy_fcp_wq;
+ }
+ rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
+ phba->sli4_hba.fcp_cq[fcp_wqidx],
+ LPFC_FCP);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0535 Failed setup of fast-path FCP "
+ "WQ (%d), rc = 0x%x\n", fcp_wqidx,
+ (uint32_t)rc);
+ goto out_destroy_fcp_wq;
+ }
+
+ /* Bind this WQ to the next FCP ring */
+ pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
+ pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
+ phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2591 FCP WQ setup: wq[%d]-id=%d, "
+ "parent cq[%d]-id=%d\n",
+ fcp_wqidx,
+ phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
+ fcp_cq_index,
+ phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
+ }
+ /*
+ * Set up Complete Queues (CQs)
+ */
+
+ /* Set up slow-path MBOX Complete Queue as the first CQ */
+ if (!phba->sli4_hba.mbx_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0528 Mailbox CQ not allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_fcp_wq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
+ phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0529 Failed setup of slow-path mailbox CQ: "
+ "rc = 0x%x\n", (uint32_t)rc);
+ goto out_destroy_fcp_wq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
+ phba->sli4_hba.mbx_cq->queue_id,
+ phba->sli4_hba.hba_eq[0]->queue_id);
+
+ /* Set up slow-path ELS Complete Queue */
+ if (!phba->sli4_hba.els_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0530 ELS CQ not allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_mbx_cq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
+ phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0531 Failed setup of slow-path ELS CQ: "
+ "rc = 0x%x\n", (uint32_t)rc);
+ goto out_destroy_mbx_cq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
+ phba->sli4_hba.els_cq->queue_id,
+ phba->sli4_hba.hba_eq[0]->queue_id);
+
+ /*
+ * Set up all the Work Queues (WQs)
+ */
+
+ /* Set up Mailbox Command Queue */
+ if (!phba->sli4_hba.mbx_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0538 Slow-path MQ not allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_els_cq;
+ }
+ rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
+ phba->sli4_hba.mbx_cq, LPFC_MBOX);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0539 Failed setup of slow-path MQ: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_els_cq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
+ phba->sli4_hba.mbx_wq->queue_id,
+ phba->sli4_hba.mbx_cq->queue_id);
+
+ /* Set up slow-path ELS Work Queue */
+ if (!phba->sli4_hba.els_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0536 Slow-path ELS WQ not allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_mbx_wq;
+ }
+ rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
+ phba->sli4_hba.els_cq, LPFC_ELS);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0537 Failed setup of slow-path ELS WQ: "
+ "rc = 0x%x\n", (uint32_t)rc);
+ goto out_destroy_mbx_wq;
+ }
+
+ /* Bind this WQ to the ELS ring */
+ pring = &psli->ring[LPFC_ELS_RING];
+ pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
+ phba->sli4_hba.els_cq->pring = pring;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
+ phba->sli4_hba.els_wq->queue_id,
+ phba->sli4_hba.els_cq->queue_id);
+
+ /*
+ * Create Receive Queue (RQ)
+ */
+ if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0540 Receive Queue not allocated\n");
+ rc = -ENOMEM;
+ goto out_destroy_els_wq;
+ }
+
+ lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
+ lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
+
+ rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
+ phba->sli4_hba.els_cq, LPFC_USOL);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0541 Failed setup of Receive Queue: "
+ "rc = 0x%x\n", (uint32_t)rc);
+ goto out_destroy_fcp_wq;
+ }
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
+ "parent cq-id=%d\n",
+ phba->sli4_hba.hdr_rq->queue_id,
+ phba->sli4_hba.dat_rq->queue_id,
+ phba->sli4_hba.els_cq->queue_id);
+
+ if (phba->cfg_fof) {
+ rc = lpfc_fof_queue_setup(phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0549 Failed setup of FOF Queues: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_els_rq;
+ }
+ }
+
+ /*
+ * Configure EQ delay multipier for interrupt coalescing using
+ * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
+ */
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
+ fcp_eqidx += LPFC_MAX_EQ_DELAY)
+ lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
+ return 0;
+
+out_destroy_els_rq:
+ lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
+out_destroy_els_wq:
+ lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
+out_destroy_mbx_wq:
+ lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
+out_destroy_els_cq:
+ lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
+out_destroy_mbx_cq:
+ lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
+out_destroy_fcp_wq:
+ for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
+ lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
+out_destroy_fcp_cq:
+ for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
+ lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
+out_destroy_hba_eq:
+ for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
+ lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
+out_error:
+ return rc;
+}
+
+/**
+ * lpfc_sli4_queue_unset - Unset all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+void
+lpfc_sli4_queue_unset(struct lpfc_hba *phba)
+{
+ int fcp_qidx;
+
+ /* Unset the queues created for Flash Optimized Fabric operations */
+ if (phba->cfg_fof)
+ lpfc_fof_queue_destroy(phba);
+ /* Unset mailbox command work queue */
+ lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
+ /* Unset ELS work queue */
+ lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
+ /* Unset unsolicited receive queue */
+ lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
+ /* Unset FCP work queue */
+ if (phba->sli4_hba.fcp_wq) {
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
+ fcp_qidx++)
+ lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
+ }
+ /* Unset mailbox command complete queue */
+ lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
+ /* Unset ELS complete queue */
+ lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
+ /* Unset FCP response complete queue */
+ if (phba->sli4_hba.fcp_cq) {
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
+ fcp_qidx++)
+ lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
+ }
+ /* Unset fast-path event queue */
+ if (phba->sli4_hba.hba_eq) {
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
+ fcp_qidx++)
+ lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
+ }
+}
+
+/**
+ * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate and set up a pool of completion queue
+ * events. The body of the completion queue event is a completion queue entry
+ * CQE. For now, this pool is used for the interrupt service routine to queue
+ * the following HBA completion queue events for the worker thread to process:
+ * - Mailbox asynchronous events
+ * - Receive queue completion unsolicited events
+ * Later, this can be used for all the slow-path events.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ **/
+static int
+lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+ int i;
+
+ for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
+ cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
+ if (!cq_event)
+ goto out_pool_create_fail;
+ list_add_tail(&cq_event->list,
+ &phba->sli4_hba.sp_cqe_event_pool);
+ }
+ return 0;
+
+out_pool_create_fail:
+ lpfc_sli4_cq_event_pool_destroy(phba);
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to free the pool of completion queue events at
+ * driver unload time. Note that, it is the responsibility of the driver
+ * cleanup routine to free all the outstanding completion-queue events
+ * allocated from this pool back into the pool before invoking this routine
+ * to destroy the pool.
+ **/
+static void
+lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event, *next_cq_event;
+
+ list_for_each_entry_safe(cq_event, next_cq_event,
+ &phba->sli4_hba.sp_cqe_event_pool, list) {
+ list_del(&cq_event->list);
+ kfree(cq_event);
+ }
+}
+
+/**
+ * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is the lock free version of the API invoked to allocate a
+ * completion-queue event from the free pool.
+ *
+ * Return: Pointer to the newly allocated completion-queue event if successful
+ * NULL otherwise.
+ **/
+struct lpfc_cq_event *
+__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event = NULL;
+
+ list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
+ struct lpfc_cq_event, list);
+ return cq_event;
+}
+
+/**
+ * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is the lock version of the API invoked to allocate a
+ * completion-queue event from the free pool.
+ *
+ * Return: Pointer to the newly allocated completion-queue event if successful
+ * NULL otherwise.
+ **/
+struct lpfc_cq_event *
+lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+ unsigned long iflags;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ cq_event = __lpfc_sli4_cq_event_alloc(phba);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return cq_event;
+}
+
+/**
+ * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
+ * @phba: pointer to lpfc hba data structure.
+ * @cq_event: pointer to the completion queue event to be freed.
+ *
+ * This routine is the lock free version of the API invoked to release a
+ * completion-queue event back into the free pool.
+ **/
+void
+__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
+ struct lpfc_cq_event *cq_event)
+{
+ list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
+}
+
+/**
+ * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
+ * @phba: pointer to lpfc hba data structure.
+ * @cq_event: pointer to the completion queue event to be freed.
+ *
+ * This routine is the lock version of the API invoked to release a
+ * completion-queue event back into the free pool.
+ **/
+void
+lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
+ struct lpfc_cq_event *cq_event)
+{
+ unsigned long iflags;
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ __lpfc_sli4_cq_event_release(phba, cq_event);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+}
+
+/**
+ * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to free all the pending completion-queue events to the
+ * back into the free pool for device reset.
+ **/
+static void
+lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
+{
+ LIST_HEAD(cqelist);
+ struct lpfc_cq_event *cqe;
+ unsigned long iflags;
+
+ /* Retrieve all the pending WCQEs from pending WCQE lists */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ /* Pending FCP XRI abort events */
+ list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
+ &cqelist);
+ /* Pending ELS XRI abort events */
+ list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
+ &cqelist);
+ /* Pending asynnc events */
+ list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
+ &cqelist);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ while (!list_empty(&cqelist)) {
+ list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
+ lpfc_sli4_cq_event_release(phba, cqe);
+ }
+}
+
+/**
+ * lpfc_pci_function_reset - Reset pci function.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to request a PCI function reset. It will destroys
+ * all resources assigned to the PCI function which originates this request.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_pci_function_reset(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mboxq;
+ uint32_t rc = 0, if_type;
+ uint32_t shdr_status, shdr_add_status;
+ uint32_t rdy_chk;
+ uint32_t port_reset = 0;
+ union lpfc_sli4_cfg_shdr *shdr;
+ struct lpfc_register reg_data;
+ uint16_t devid;
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ switch (if_type) {
+ case LPFC_SLI_INTF_IF_TYPE_0:
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0494 Unable to allocate memory for "
+ "issuing SLI_FUNCTION_RESET mailbox "
+ "command\n");
+ return -ENOMEM;
+ }
+
+ /* Setup PCI function reset mailbox-ioctl command */
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
+ LPFC_SLI4_MBX_EMBED);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
+ &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0495 SLI_FUNCTION_RESET mailbox "
+ "failed with status x%x add_status x%x,"
+ " mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_2:
+wait:
+ /*
+ * Poll the Port Status Register and wait for RDY for
+ * up to 30 seconds. If the port doesn't respond, treat
+ * it as an error.
+ */
+ for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
+ if (lpfc_readl(phba->sli4_hba.u.if_type2.
+ STATUSregaddr, &reg_data.word0)) {
+ rc = -ENODEV;
+ goto out;
+ }
+ if (bf_get(lpfc_sliport_status_rdy, &reg_data))
+ break;
+ msleep(20);
+ }
+
+ if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
+ phba->work_status[0] = readl(
+ phba->sli4_hba.u.if_type2.ERR1regaddr);
+ phba->work_status[1] = readl(
+ phba->sli4_hba.u.if_type2.ERR2regaddr);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2890 Port not ready, port status reg "
+ "0x%x error 1=0x%x, error 2=0x%x\n",
+ reg_data.word0,
+ phba->work_status[0],
+ phba->work_status[1]);
+ rc = -ENODEV;
+ goto out;
+ }
+
+ if (!port_reset) {
+ /*
+ * Reset the port now
+ */
+ reg_data.word0 = 0;
+ bf_set(lpfc_sliport_ctrl_end, &reg_data,
+ LPFC_SLIPORT_LITTLE_ENDIAN);
+ bf_set(lpfc_sliport_ctrl_ip, &reg_data,
+ LPFC_SLIPORT_INIT_PORT);
+ writel(reg_data.word0, phba->sli4_hba.u.if_type2.
+ CTRLregaddr);
+ /* flush */
+ pci_read_config_word(phba->pcidev,
+ PCI_DEVICE_ID, &devid);
+
+ port_reset = 1;
+ msleep(20);
+ goto wait;
+ } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
+ rc = -ENODEV;
+ goto out;
+ }
+ break;
+
+ case LPFC_SLI_INTF_IF_TYPE_1:
+ default:
+ break;
+ }
+
+out:
+ /* Catch the not-ready port failure after a port reset. */
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3317 HBA not functional: IP Reset Failed "
+ "try: echo fw_reset > board_mode\n");
+ rc = -ENODEV;
+ }
+
+ return rc;
+}
+
+/**
+ * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the PCI device memory space for device
+ * with SLI-4 interface spec.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+ unsigned long bar0map_len, bar1map_len, bar2map_len;
+ int error = -ENODEV;
+ uint32_t if_type;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ return error;
+ else
+ pdev = phba->pcidev;
+
+ /* Set the device DMA mask size */
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
+ || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
+ || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
+ return error;
+ }
+ }
+
+ /*
+ * The BARs and register set definitions and offset locations are
+ * dependent on the if_type.
+ */
+ if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
+ &phba->sli4_hba.sli_intf.word0)) {
+ return error;
+ }
+
+ /* There is no SLI3 failback for SLI4 devices. */
+ if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
+ LPFC_SLI_INTF_VALID) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2894 SLI_INTF reg contents invalid "
+ "sli_intf reg 0x%x\n",
+ phba->sli4_hba.sli_intf.word0);
+ return error;
+ }
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ /*
+ * Get the bus address of SLI4 device Bar regions and the
+ * number of bytes required by each mapping. The mapping of the
+ * particular PCI BARs regions is dependent on the type of
+ * SLI4 device.
+ */
+ if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
+ phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
+ bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
+
+ /*
+ * Map SLI4 PCI Config Space Register base to a kernel virtual
+ * addr
+ */
+ phba->sli4_hba.conf_regs_memmap_p =
+ ioremap(phba->pci_bar0_map, bar0map_len);
+ if (!phba->sli4_hba.conf_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 PCI config "
+ "registers.\n");
+ goto out;
+ }
+ phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
+ /* Set up BAR0 PCI config space register memory map */
+ lpfc_sli4_bar0_register_memmap(phba, if_type);
+ } else {
+ phba->pci_bar0_map = pci_resource_start(pdev, 1);
+ bar0map_len = pci_resource_len(pdev, 1);
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
+ goto out;
+ }
+ phba->sli4_hba.conf_regs_memmap_p =
+ ioremap(phba->pci_bar0_map, bar0map_len);
+ if (!phba->sli4_hba.conf_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 PCI config "
+ "registers.\n");
+ goto out;
+ }
+ lpfc_sli4_bar0_register_memmap(phba, if_type);
+ }
+
+ if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
+ (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
+ /*
+ * Map SLI4 if type 0 HBA Control Register base to a kernel
+ * virtual address and setup the registers.
+ */
+ phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
+ bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
+ phba->sli4_hba.ctrl_regs_memmap_p =
+ ioremap(phba->pci_bar1_map, bar1map_len);
+ if (!phba->sli4_hba.ctrl_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 HBA control registers.\n");
+ goto out_iounmap_conf;
+ }
+ phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
+ lpfc_sli4_bar1_register_memmap(phba);
+ }
+
+ if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
+ (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
+ /*
+ * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
+ * virtual address and setup the registers.
+ */
+ phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
+ bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
+ phba->sli4_hba.drbl_regs_memmap_p =
+ ioremap(phba->pci_bar2_map, bar2map_len);
+ if (!phba->sli4_hba.drbl_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 HBA doorbell registers.\n");
+ goto out_iounmap_ctrl;
+ }
+ phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
+ error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
+ if (error)
+ goto out_iounmap_all;
+ }
+
+ return 0;
+
+out_iounmap_all:
+ iounmap(phba->sli4_hba.drbl_regs_memmap_p);
+out_iounmap_ctrl:
+ iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
+out_iounmap_conf:
+ iounmap(phba->sli4_hba.conf_regs_memmap_p);
+out:
+ return error;
+}
+
+/**
+ * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the PCI device memory space for device
+ * with SLI-4 interface spec.
+ **/
+static void
+lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
+{
+ uint32_t if_type;
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+
+ switch (if_type) {
+ case LPFC_SLI_INTF_IF_TYPE_0:
+ iounmap(phba->sli4_hba.drbl_regs_memmap_p);
+ iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
+ iounmap(phba->sli4_hba.conf_regs_memmap_p);
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_2:
+ iounmap(phba->sli4_hba.conf_regs_memmap_p);
+ break;
+ case LPFC_SLI_INTF_IF_TYPE_1:
+ default:
+ dev_printk(KERN_ERR, &phba->pcidev->dev,
+ "FATAL - unsupported SLI4 interface type - %d\n",
+ if_type);
+ break;
+ }
+}
+
+/**
+ * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI-X interrupt vectors to device
+ * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
+ * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
+ * once invoked, enables either all or nothing, depending on the current
+ * availability of PCI vector resources. The device driver is responsible
+ * for calling the individual request_irq() to register each MSI-X vector
+ * with a interrupt handler, which is done in this function. Note that
+ * later when device is unloading, the driver should always call free_irq()
+ * on all MSI-X vectors it has done request_irq() on before calling
+ * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
+ * will be left with MSI-X enabled and leaks its vectors.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli_enable_msix(struct lpfc_hba *phba)
+{
+ int rc, i;
+ LPFC_MBOXQ_t *pmb;
+
+ /* Set up MSI-X multi-message vectors */
+ for (i = 0; i < LPFC_MSIX_VECTORS; i++)
+ phba->msix_entries[i].entry = i;
+
+ /* Configure MSI-X capability structure */
+ rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
+ LPFC_MSIX_VECTORS);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0420 PCI enable MSI-X failed (%d)\n", rc);
+ goto vec_fail_out;
+ }
+ for (i = 0; i < LPFC_MSIX_VECTORS; i++)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0477 MSI-X entry[%d]: vector=x%x "
+ "message=%d\n", i,
+ phba->msix_entries[i].vector,
+ phba->msix_entries[i].entry);
+ /*
+ * Assign MSI-X vectors to interrupt handlers
+ */
+
+ /* vector-0 is associated to slow-path handler */
+ rc = request_irq(phba->msix_entries[0].vector,
+ &lpfc_sli_sp_intr_handler, IRQF_SHARED,
+ LPFC_SP_DRIVER_HANDLER_NAME, phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0421 MSI-X slow-path request_irq failed "
+ "(%d)\n", rc);
+ goto msi_fail_out;
+ }
+
+ /* vector-1 is associated to fast-path handler */
+ rc = request_irq(phba->msix_entries[1].vector,
+ &lpfc_sli_fp_intr_handler, IRQF_SHARED,
+ LPFC_FP_DRIVER_HANDLER_NAME, phba);
+
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0429 MSI-X fast-path request_irq failed "
+ "(%d)\n", rc);
+ goto irq_fail_out;
+ }
+
+ /*
+ * Configure HBA MSI-X attention conditions to messages
+ */
+ pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+
+ if (!pmb) {
+ rc = -ENOMEM;
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0474 Unable to allocate memory for issuing "
+ "MBOX_CONFIG_MSI command\n");
+ goto mem_fail_out;
+ }
+ rc = lpfc_config_msi(phba, pmb);
+ if (rc)
+ goto mbx_fail_out;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
+ "0351 Config MSI mailbox command failed, "
+ "mbxCmd x%x, mbxStatus x%x\n",
+ pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
+ goto mbx_fail_out;
+ }
+
+ /* Free memory allocated for mailbox command */
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return rc;
+
+mbx_fail_out:
+ /* Free memory allocated for mailbox command */
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+mem_fail_out:
+ /* free the irq already requested */
+ free_irq(phba->msix_entries[1].vector, phba);
+
+irq_fail_out:
+ /* free the irq already requested */
+ free_irq(phba->msix_entries[0].vector, phba);
+
+msi_fail_out:
+ /* Unconfigure MSI-X capability structure */
+ pci_disable_msix(phba->pcidev);
+
+vec_fail_out:
+ return rc;
+}
+
+/**
+ * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release the MSI-X vectors and then disable the
+ * MSI-X interrupt mode to device with SLI-3 interface spec.
+ **/
+static void
+lpfc_sli_disable_msix(struct lpfc_hba *phba)
+{
+ int i;
+
+ /* Free up MSI-X multi-message vectors */
+ for (i = 0; i < LPFC_MSIX_VECTORS; i++)
+ free_irq(phba->msix_entries[i].vector, phba);
+ /* Disable MSI-X */
+ pci_disable_msix(phba->pcidev);
+
+ return;
+}
+
+/**
+ * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI interrupt mode to device with
+ * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
+ * enable the MSI vector. The device driver is responsible for calling the
+ * request_irq() to register MSI vector with a interrupt the handler, which
+ * is done in this function.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ */
+static int
+lpfc_sli_enable_msi(struct lpfc_hba *phba)
+{
+ int rc;
+
+ rc = pci_enable_msi(phba->pcidev);
+ if (!rc)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0462 PCI enable MSI mode success.\n");
+ else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0471 PCI enable MSI mode failed (%d)\n", rc);
+ return rc;
+ }
+
+ rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (rc) {
+ pci_disable_msi(phba->pcidev);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0478 MSI request_irq failed (%d)\n", rc);
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the MSI interrupt mode to device with
+ * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
+ * done request_irq() on before calling pci_disable_msi(). Failure to do so
+ * results in a BUG_ON() and a device will be left with MSI enabled and leaks
+ * its vector.
+ */
+static void
+lpfc_sli_disable_msi(struct lpfc_hba *phba)
+{
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msi(phba->pcidev);
+ return;
+}
+
+/**
+ * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable device interrupt and associate driver's
+ * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
+ * spec. Depends on the interrupt mode configured to the driver, the driver
+ * will try to fallback from the configured interrupt mode to an interrupt
+ * mode which is supported by the platform, kernel, and device in the order
+ * of:
+ * MSI-X -> MSI -> IRQ.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static uint32_t
+lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
+{
+ uint32_t intr_mode = LPFC_INTR_ERROR;
+ int retval;
+
+ if (cfg_mode == 2) {
+ /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
+ retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
+ if (!retval) {
+ /* Now, try to enable MSI-X interrupt mode */
+ retval = lpfc_sli_enable_msix(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI-X mode */
+ phba->intr_type = MSIX;
+ intr_mode = 2;
+ }
+ }
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (cfg_mode >= 1 && phba->intr_type == NONE) {
+ retval = lpfc_sli_enable_msi(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI mode */
+ phba->intr_type = MSI;
+ intr_mode = 1;
+ }
+ }
+
+ /* Fallback to INTx if both MSI-X/MSI initalization failed */
+ if (phba->intr_type == NONE) {
+ retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (!retval) {
+ /* Indicate initialization to INTx mode */
+ phba->intr_type = INTx;
+ intr_mode = 0;
+ }
+ }
+ return intr_mode;
+}
+
+/**
+ * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable device interrupt and disassociate the
+ * driver's interrupt handler(s) from interrupt vector(s) to device with
+ * SLI-3 interface spec. Depending on the interrupt mode, the driver will
+ * release the interrupt vector(s) for the message signaled interrupt.
+ **/
+static void
+lpfc_sli_disable_intr(struct lpfc_hba *phba)
+{
+ /* Disable the currently initialized interrupt mode */
+ if (phba->intr_type == MSIX)
+ lpfc_sli_disable_msix(phba);
+ else if (phba->intr_type == MSI)
+ lpfc_sli_disable_msi(phba);
+ else if (phba->intr_type == INTx)
+ free_irq(phba->pcidev->irq, phba);
+
+ /* Reset interrupt management states */
+ phba->intr_type = NONE;
+ phba->sli.slistat.sli_intr = 0;
+
+ return;
+}
+
+/**
+ * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * Find next available CPU to use for IRQ to CPU affinity.
+ */
+static int
+lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
+{
+ struct lpfc_vector_map_info *cpup;
+ int cpu;
+
+ cpup = phba->sli4_hba.cpu_map;
+ for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
+ /* CPU must be online */
+ if (cpu_online(cpu)) {
+ if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
+ (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
+ (cpup->phys_id == phys_id)) {
+ return cpu;
+ }
+ }
+ cpup++;
+ }
+
+ /*
+ * If we get here, we have used ALL CPUs for the specific
+ * phys_id. Now we need to clear out lpfc_used_cpu and start
+ * reusing CPUs.
+ */
+
+ for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
+ if (lpfc_used_cpu[cpu] == phys_id)
+ lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
+ }
+
+ cpup = phba->sli4_hba.cpu_map;
+ for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
+ /* CPU must be online */
+ if (cpu_online(cpu)) {
+ if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
+ (cpup->phys_id == phys_id)) {
+ return cpu;
+ }
+ }
+ cpup++;
+ }
+ return LPFC_VECTOR_MAP_EMPTY;
+}
+
+/**
+ * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
+ * @phba: pointer to lpfc hba data structure.
+ * @vectors: number of HBA vectors
+ *
+ * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
+ * affinization across multple physical CPUs (numa nodes).
+ * In addition, this routine will assign an IO channel for each CPU
+ * to use when issuing I/Os.
+ */
+static int
+lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
+{
+ int i, idx, saved_chann, used_chann, cpu, phys_id;
+ int max_phys_id, min_phys_id;
+ int num_io_channel, first_cpu, chan;
+ struct lpfc_vector_map_info *cpup;
+#ifdef CONFIG_X86
+ struct cpuinfo_x86 *cpuinfo;
+#endif
+ struct cpumask *mask;
+ uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
+
+ /* If there is no mapping, just return */
+ if (!phba->cfg_fcp_cpu_map)
+ return 1;
+
+ /* Init cpu_map array */
+ memset(phba->sli4_hba.cpu_map, 0xff,
+ (sizeof(struct lpfc_vector_map_info) *
+ phba->sli4_hba.num_present_cpu));
+
+ max_phys_id = 0;
+ min_phys_id = 0xff;
+ phys_id = 0;
+ num_io_channel = 0;
+ first_cpu = LPFC_VECTOR_MAP_EMPTY;
+
+ /* Update CPU map with physical id and core id of each CPU */
+ cpup = phba->sli4_hba.cpu_map;
+ for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
+#ifdef CONFIG_X86
+ cpuinfo = &cpu_data(cpu);
+ cpup->phys_id = cpuinfo->phys_proc_id;
+ cpup->core_id = cpuinfo->cpu_core_id;
+#else
+ /* No distinction between CPUs for other platforms */
+ cpup->phys_id = 0;
+ cpup->core_id = 0;
+#endif
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "3328 CPU physid %d coreid %d\n",
+ cpup->phys_id, cpup->core_id);
+
+ if (cpup->phys_id > max_phys_id)
+ max_phys_id = cpup->phys_id;
+ if (cpup->phys_id < min_phys_id)
+ min_phys_id = cpup->phys_id;
+ cpup++;
+ }
+
+ phys_id = min_phys_id;
+ /* Now associate the HBA vectors with specific CPUs */
+ for (idx = 0; idx < vectors; idx++) {
+ cpup = phba->sli4_hba.cpu_map;
+ cpu = lpfc_find_next_cpu(phba, phys_id);
+ if (cpu == LPFC_VECTOR_MAP_EMPTY) {
+
+ /* Try for all phys_id's */
+ for (i = 1; i < max_phys_id; i++) {
+ phys_id++;
+ if (phys_id > max_phys_id)
+ phys_id = min_phys_id;
+ cpu = lpfc_find_next_cpu(phba, phys_id);
+ if (cpu == LPFC_VECTOR_MAP_EMPTY)
+ continue;
+ goto found;
+ }
+
+ /* Use round robin for scheduling */
+ phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
+ chan = 0;
+ cpup = phba->sli4_hba.cpu_map;
+ for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
+ cpup->channel_id = chan;
+ cpup++;
+ chan++;
+ if (chan >= phba->cfg_fcp_io_channel)
+ chan = 0;
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3329 Cannot set affinity:"
+ "Error mapping vector %d (%d)\n",
+ idx, vectors);
+ return 0;
+ }
+found:
+ cpup += cpu;
+ if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
+ lpfc_used_cpu[cpu] = phys_id;
+
+ /* Associate vector with selected CPU */
+ cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
+
+ /* Associate IO channel with selected CPU */
+ cpup->channel_id = idx;
+ num_io_channel++;
+
+ if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
+ first_cpu = cpu;
+
+ /* Now affinitize to the selected CPU */
+ mask = &cpup->maskbits;
+ cpumask_clear(mask);
+ cpumask_set_cpu(cpu, mask);
+ i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
+ vector, mask);
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "3330 Set Affinity: CPU %d channel %d "
+ "irq %d (%x)\n",
+ cpu, cpup->channel_id,
+ phba->sli4_hba.msix_entries[idx].vector, i);
+
+ /* Spread vector mapping across multple physical CPU nodes */
+ phys_id++;
+ if (phys_id > max_phys_id)
+ phys_id = min_phys_id;
+ }
+
+ /*
+ * Finally fill in the IO channel for any remaining CPUs.
+ * At this point, all IO channels have been assigned to a specific
+ * MSIx vector, mapped to a specific CPU.
+ * Base the remaining IO channel assigned, to IO channels already
+ * assigned to other CPUs on the same phys_id.
+ */
+ for (i = min_phys_id; i <= max_phys_id; i++) {
+ /*
+ * If there are no io channels already mapped to
+ * this phys_id, just round robin thru the io_channels.
+ * Setup chann[] for round robin.
+ */
+ for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
+ chann[idx] = idx;
+
+ saved_chann = 0;
+ used_chann = 0;
+
+ /*
+ * First build a list of IO channels already assigned
+ * to this phys_id before reassigning the same IO
+ * channels to the remaining CPUs.
+ */
+ cpup = phba->sli4_hba.cpu_map;
+ cpu = first_cpu;
+ cpup += cpu;
+ for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
+ idx++) {
+ if (cpup->phys_id == i) {
+ /*
+ * Save any IO channels that are
+ * already mapped to this phys_id.
+ */
+ if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
+ chann[saved_chann] =
+ cpup->channel_id;
+ saved_chann++;
+ goto out;
+ }
+
+ /* See if we are using round-robin */
+ if (saved_chann == 0)
+ saved_chann =
+ phba->cfg_fcp_io_channel;
+
+ /* Associate next IO channel with CPU */
+ cpup->channel_id = chann[used_chann];
+ num_io_channel++;
+ used_chann++;
+ if (used_chann == saved_chann)
+ used_chann = 0;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "3331 Set IO_CHANN "
+ "CPU %d channel %d\n",
+ idx, cpup->channel_id);
+ }
+out:
+ cpu++;
+ if (cpu >= phba->sli4_hba.num_present_cpu) {
+ cpup = phba->sli4_hba.cpu_map;
+ cpu = 0;
+ } else {
+ cpup++;
+ }
+ }
+ }
+
+ if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
+ cpup = phba->sli4_hba.cpu_map;
+ for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
+ if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
+ cpup->channel_id = 0;
+ num_io_channel++;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "3332 Assign IO_CHANN "
+ "CPU %d channel %d\n",
+ idx, cpup->channel_id);
+ }
+ cpup++;
+ }
+ }
+
+ /* Sanity check */
+ if (num_io_channel != phba->sli4_hba.num_present_cpu)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3333 Set affinity mismatch:"
+ "%d chann != %d cpus: %d vectors\n",
+ num_io_channel, phba->sli4_hba.num_present_cpu,
+ vectors);
+
+ /* Enable using cpu affinity for scheduling */
+ phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
+ return 1;
+}
+
+
+/**
+ * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI-X interrupt vectors to device
+ * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
+ * is called to enable the MSI-X vectors. The device driver is responsible
+ * for calling the individual request_irq() to register each MSI-X vector
+ * with a interrupt handler, which is done in this function. Note that
+ * later when device is unloading, the driver should always call free_irq()
+ * on all MSI-X vectors it has done request_irq() on before calling
+ * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
+ * will be left with MSI-X enabled and leaks its vectors.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli4_enable_msix(struct lpfc_hba *phba)
+{
+ int vectors, rc, index;
+
+ /* Set up MSI-X multi-message vectors */
+ for (index = 0; index < phba->cfg_fcp_io_channel; index++)
+ phba->sli4_hba.msix_entries[index].entry = index;
+
+ /* Configure MSI-X capability structure */
+ vectors = phba->cfg_fcp_io_channel;
+ if (phba->cfg_fof) {
+ phba->sli4_hba.msix_entries[index].entry = index;
+ vectors++;
+ }
+ rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
+ 2, vectors);
+ if (rc < 0) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0484 PCI enable MSI-X failed (%d)\n", rc);
+ goto vec_fail_out;
+ }
+ vectors = rc;
+
+ /* Log MSI-X vector assignment */
+ for (index = 0; index < vectors; index++)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0489 MSI-X entry[%d]: vector=x%x "
+ "message=%d\n", index,
+ phba->sli4_hba.msix_entries[index].vector,
+ phba->sli4_hba.msix_entries[index].entry);
+
+ /* Assign MSI-X vectors to interrupt handlers */
+ for (index = 0; index < vectors; index++) {
+ memset(&phba->sli4_hba.handler_name[index], 0, 16);
+ snprintf((char *)&phba->sli4_hba.handler_name[index],
+ LPFC_SLI4_HANDLER_NAME_SZ,
+ LPFC_DRIVER_HANDLER_NAME"%d", index);
+
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
+ if (phba->cfg_fof && (index == (vectors - 1)))
+ rc = request_irq(
+ phba->sli4_hba.msix_entries[index].vector,
+ &lpfc_sli4_fof_intr_handler, IRQF_SHARED,
+ (char *)&phba->sli4_hba.handler_name[index],
+ &phba->sli4_hba.fcp_eq_hdl[index]);
+ else
+ rc = request_irq(
+ phba->sli4_hba.msix_entries[index].vector,
+ &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
+ (char *)&phba->sli4_hba.handler_name[index],
+ &phba->sli4_hba.fcp_eq_hdl[index]);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0486 MSI-X fast-path (%d) "
+ "request_irq failed (%d)\n", index, rc);
+ goto cfg_fail_out;
+ }
+ }
+
+ if (phba->cfg_fof)
+ vectors--;
+
+ if (vectors != phba->cfg_fcp_io_channel) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3238 Reducing IO channels to match number of "
+ "MSI-X vectors, requested %d got %d\n",
+ phba->cfg_fcp_io_channel, vectors);
+ phba->cfg_fcp_io_channel = vectors;
+ }
+
+ lpfc_sli4_set_affinity(phba, vectors);
+ return rc;
+
+cfg_fail_out:
+ /* free the irq already requested */
+ for (--index; index >= 0; index--) {
+ irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
+ vector, NULL);
+ free_irq(phba->sli4_hba.msix_entries[index].vector,
+ &phba->sli4_hba.fcp_eq_hdl[index]);
+ }
+
+ /* Unconfigure MSI-X capability structure */
+ pci_disable_msix(phba->pcidev);
+
+vec_fail_out:
+ return rc;
+}
+
+/**
+ * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release the MSI-X vectors and then disable the
+ * MSI-X interrupt mode to device with SLI-4 interface spec.
+ **/
+static void
+lpfc_sli4_disable_msix(struct lpfc_hba *phba)
+{
+ int index;
+
+ /* Free up MSI-X multi-message vectors */
+ for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
+ irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
+ vector, NULL);
+ free_irq(phba->sli4_hba.msix_entries[index].vector,
+ &phba->sli4_hba.fcp_eq_hdl[index]);
+ }
+ if (phba->cfg_fof) {
+ free_irq(phba->sli4_hba.msix_entries[index].vector,
+ &phba->sli4_hba.fcp_eq_hdl[index]);
+ }
+ /* Disable MSI-X */
+ pci_disable_msix(phba->pcidev);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI interrupt mode to device with
+ * SLI-4 interface spec. The kernel function pci_enable_msi() is called
+ * to enable the MSI vector. The device driver is responsible for calling
+ * the request_irq() to register MSI vector with a interrupt the handler,
+ * which is done in this function.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static int
+lpfc_sli4_enable_msi(struct lpfc_hba *phba)
+{
+ int rc, index;
+
+ rc = pci_enable_msi(phba->pcidev);
+ if (!rc)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0487 PCI enable MSI mode success.\n");
+ else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0488 PCI enable MSI mode failed (%d)\n", rc);
+ return rc;
+ }
+
+ rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (rc) {
+ pci_disable_msi(phba->pcidev);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0490 MSI request_irq failed (%d)\n", rc);
+ return rc;
+ }
+
+ for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ }
+
+ if (phba->cfg_fof) {
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ }
+ return 0;
+}
+
+/**
+ * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the MSI interrupt mode to device with
+ * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
+ * done request_irq() on before calling pci_disable_msi(). Failure to do so
+ * results in a BUG_ON() and a device will be left with MSI enabled and leaks
+ * its vector.
+ **/
+static void
+lpfc_sli4_disable_msi(struct lpfc_hba *phba)
+{
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msi(phba->pcidev);
+ return;
+}
+
+/**
+ * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable device interrupt and associate driver's
+ * interrupt handler(s) to interrupt vector(s) to device with SLI-4
+ * interface spec. Depends on the interrupt mode configured to the driver,
+ * the driver will try to fallback from the configured interrupt mode to an
+ * interrupt mode which is supported by the platform, kernel, and device in
+ * the order of:
+ * MSI-X -> MSI -> IRQ.
+ *
+ * Return codes
+ * 0 - successful
+ * other values - error
+ **/
+static uint32_t
+lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
+{
+ uint32_t intr_mode = LPFC_INTR_ERROR;
+ int retval, index;
+
+ if (cfg_mode == 2) {
+ /* Preparation before conf_msi mbox cmd */
+ retval = 0;
+ if (!retval) {
+ /* Now, try to enable MSI-X interrupt mode */
+ retval = lpfc_sli4_enable_msix(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI-X mode */
+ phba->intr_type = MSIX;
+ intr_mode = 2;
+ }
+ }
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (cfg_mode >= 1 && phba->intr_type == NONE) {
+ retval = lpfc_sli4_enable_msi(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI mode */
+ phba->intr_type = MSI;
+ intr_mode = 1;
+ }
+ }
+
+ /* Fallback to INTx if both MSI-X/MSI initalization failed */
+ if (phba->intr_type == NONE) {
+ retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (!retval) {
+ /* Indicate initialization to INTx mode */
+ phba->intr_type = INTx;
+ intr_mode = 0;
+ for (index = 0; index < phba->cfg_fcp_io_channel;
+ index++) {
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
+ fcp_eq_in_use, 1);
+ }
+ if (phba->cfg_fof) {
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
+ fcp_eq_in_use, 1);
+ }
+ }
+ }
+ return intr_mode;
+}
+
+/**
+ * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable device interrupt and disassociate
+ * the driver's interrupt handler(s) from interrupt vector(s) to device
+ * with SLI-4 interface spec. Depending on the interrupt mode, the driver
+ * will release the interrupt vector(s) for the message signaled interrupt.
+ **/
+static void
+lpfc_sli4_disable_intr(struct lpfc_hba *phba)
+{
+ /* Disable the currently initialized interrupt mode */
+ if (phba->intr_type == MSIX)
+ lpfc_sli4_disable_msix(phba);
+ else if (phba->intr_type == MSI)
+ lpfc_sli4_disable_msi(phba);
+ else if (phba->intr_type == INTx)
+ free_irq(phba->pcidev->irq, phba);
+
+ /* Reset interrupt management states */
+ phba->intr_type = NONE;
+ phba->sli.slistat.sli_intr = 0;
+
+ return;
+}
+
+/**
+ * lpfc_unset_hba - Unset SLI3 hba device initialization
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the HBA device initialization steps to
+ * a device with SLI-3 interface spec.
+ **/
+static void
+lpfc_unset_hba(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ spin_lock_irq(shost->host_lock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(shost->host_lock);
+
+ kfree(phba->vpi_bmask);
+ kfree(phba->vpi_ids);
+
+ lpfc_stop_hba_timers(phba);
+
+ phba->pport->work_port_events = 0;
+
+ lpfc_sli_hba_down(phba);
+
+ lpfc_sli_brdrestart(phba);
+
+ lpfc_sli_disable_intr(phba);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called in the SLI4 code path to wait for completion
+ * of device's XRIs exchange busy. It will check the XRI exchange busy
+ * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
+ * that, it will check the XRI exchange busy on outstanding FCP and ELS
+ * I/Os every 30 seconds, log error message, and wait forever. Only when
+ * all XRI exchange busy complete, the driver unload shall proceed with
+ * invoking the function reset ioctl mailbox command to the CNA and the
+ * the rest of the driver unload resource release.
+ **/
+static void
+lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
+{
+ int wait_time = 0;
+ int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
+ int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
+
+ while (!fcp_xri_cmpl || !els_xri_cmpl) {
+ if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
+ if (!fcp_xri_cmpl)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2877 FCP XRI exchange busy "
+ "wait time: %d seconds.\n",
+ wait_time/1000);
+ if (!els_xri_cmpl)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2878 ELS XRI exchange busy "
+ "wait time: %d seconds.\n",
+ wait_time/1000);
+ msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
+ wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
+ } else {
+ msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
+ wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
+ }
+ fcp_xri_cmpl =
+ list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
+ els_xri_cmpl =
+ list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
+ }
+}
+
+/**
+ * lpfc_sli4_hba_unset - Unset the fcoe hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called in the SLI4 code path to reset the HBA's FCoE
+ * function. The caller is not required to hold any lock. This routine
+ * issues PCI function reset mailbox command to reset the FCoE function.
+ * At the end of the function, it calls lpfc_hba_down_post function to
+ * free any pending commands.
+ **/
+static void
+lpfc_sli4_hba_unset(struct lpfc_hba *phba)
+{
+ int wait_cnt = 0;
+ LPFC_MBOXQ_t *mboxq;
+ struct pci_dev *pdev = phba->pcidev;
+
+ lpfc_stop_hba_timers(phba);
+ phba->sli4_hba.intr_enable = 0;
+
+ /*
+ * Gracefully wait out the potential current outstanding asynchronous
+ * mailbox command.
+ */
+
+ /* First, block any pending async mailbox command from posted */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
+ /* Now, trying to wait it out if we can */
+ while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ msleep(10);
+ if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
+ break;
+ }
+ /* Forcefully release the outstanding mailbox command if timed out */
+ if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ spin_lock_irq(&phba->hbalock);
+ mboxq = phba->sli.mbox_active;
+ mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
+ __lpfc_mbox_cmpl_put(phba, mboxq);
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ spin_unlock_irq(&phba->hbalock);
+ }
+
+ /* Abort all iocbs associated with the hba */
+ lpfc_sli_hba_iocb_abort(phba);
+
+ /* Wait for completion of device XRI exchange busy */
+ lpfc_sli4_xri_exchange_busy_wait(phba);
+
+ /* Disable PCI subsystem interrupt */
+ lpfc_sli4_disable_intr(phba);
+
+ /* Disable SR-IOV if enabled */
+ if (phba->cfg_sriov_nr_virtfn)
+ pci_disable_sriov(pdev);
+
+ /* Stop kthread signal shall trigger work_done one more time */
+ kthread_stop(phba->worker_thread);
+
+ /* Reset SLI4 HBA FCoE function */
+ lpfc_pci_function_reset(phba);
+ lpfc_sli4_queue_destroy(phba);
+
+ /* Stop the SLI4 device port */
+ phba->pport->work_port_events = 0;
+}
+
+ /**
+ * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
+ * @phba: Pointer to HBA context object.
+ * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
+ *
+ * This function is called in the SLI4 code path to read the port's
+ * sli4 capabilities.
+ *
+ * This function may be be called from any context that can block-wait
+ * for the completion. The expectation is that this routine is called
+ * typically from probe_one or from the online routine.
+ **/
+int
+lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ int rc;
+ struct lpfc_mqe *mqe;
+ struct lpfc_pc_sli4_params *sli4_params;
+ uint32_t mbox_tmo;
+
+ rc = 0;
+ mqe = &mboxq->u.mqe;
+
+ /* Read the port's SLI4 Parameters port capabilities */
+ lpfc_pc_sli4_params(mboxq);
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ else {
+ mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
+ rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
+ }
+
+ if (unlikely(rc))
+ return 1;
+
+ sli4_params = &phba->sli4_hba.pc_sli4_params;
+ sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
+ sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
+ sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
+ sli4_params->featurelevel_1 = bf_get(featurelevel_1,
+ &mqe->un.sli4_params);
+ sli4_params->featurelevel_2 = bf_get(featurelevel_2,
+ &mqe->un.sli4_params);
+ sli4_params->proto_types = mqe->un.sli4_params.word3;
+ sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
+ sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
+ sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
+ sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
+ sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
+ sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
+ sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
+ sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
+ sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
+ sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
+ sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
+ sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
+ sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
+ sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
+ sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
+ sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
+ sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
+ sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
+ sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
+ sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
+
+ /* Make sure that sge_supp_len can be handled by the driver */
+ if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
+ sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
+
+ return rc;
+}
+
+/**
+ * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
+ * @phba: Pointer to HBA context object.
+ * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
+ *
+ * This function is called in the SLI4 code path to read the port's
+ * sli4 capabilities.
+ *
+ * This function may be be called from any context that can block-wait
+ * for the completion. The expectation is that this routine is called
+ * typically from probe_one or from the online routine.
+ **/
+int
+lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ int rc;
+ struct lpfc_mqe *mqe = &mboxq->u.mqe;
+ struct lpfc_pc_sli4_params *sli4_params;
+ uint32_t mbox_tmo;
+ int length;
+ struct lpfc_sli4_parameters *mbx_sli4_parameters;
+
+ /*
+ * By default, the driver assumes the SLI4 port requires RPI
+ * header postings. The SLI4_PARAM response will correct this
+ * assumption.
+ */
+ phba->sli4_hba.rpi_hdrs_in_use = 1;
+
+ /* Read the port's SLI4 Config Parameters */
+ length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
+ length, LPFC_SLI4_MBX_EMBED);
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ else {
+ mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
+ rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
+ }
+ if (unlikely(rc))
+ return rc;
+ sli4_params = &phba->sli4_hba.pc_sli4_params;
+ mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
+ sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
+ sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
+ sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
+ sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
+ mbx_sli4_parameters);
+ sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
+ mbx_sli4_parameters);
+ if (bf_get(cfg_phwq, mbx_sli4_parameters))
+ phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
+ else
+ phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
+ sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
+ sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
+ sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
+ sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
+ sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
+ sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
+ sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
+ sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
+ sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
+ mbx_sli4_parameters);
+ sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
+ mbx_sli4_parameters);
+ phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
+ phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
+
+ /* Make sure that sge_supp_len can be handled by the driver */
+ if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
+ sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
+
+ return 0;
+}
+
+/**
+ * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
+ * @pdev: pointer to PCI device
+ * @pid: pointer to PCI device identifier
+ *
+ * This routine is to be called to attach a device with SLI-3 interface spec
+ * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
+ * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
+ * information of the device and driver to see if the driver state that it can
+ * support this kind of device. If the match is successful, the driver core
+ * invokes this routine. If this routine determines it can claim the HBA, it
+ * does all the initialization that it needs to do to handle the HBA properly.
+ *
+ * Return code
+ * 0 - driver can claim the device
+ * negative value - driver can not claim the device
+ **/
+static int
+lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
+{
+ struct lpfc_hba *phba;
+ struct lpfc_vport *vport = NULL;
+ struct Scsi_Host *shost = NULL;
+ int error;
+ uint32_t cfg_mode, intr_mode;
+
+ /* Allocate memory for HBA structure */
+ phba = lpfc_hba_alloc(pdev);
+ if (!phba)
+ return -ENOMEM;
+
+ /* Perform generic PCI device enabling operation */
+ error = lpfc_enable_pci_dev(phba);
+ if (error)
+ goto out_free_phba;
+
+ /* Set up SLI API function jump table for PCI-device group-0 HBAs */
+ error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
+ if (error)
+ goto out_disable_pci_dev;
+
+ /* Set up SLI-3 specific device PCI memory space */
+ error = lpfc_sli_pci_mem_setup(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1402 Failed to set up pci memory space.\n");
+ goto out_disable_pci_dev;
+ }
+
+ /* Set up phase-1 common device driver resources */
+ error = lpfc_setup_driver_resource_phase1(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1403 Failed to set up driver resource.\n");
+ goto out_unset_pci_mem_s3;
+ }
+
+ /* Set up SLI-3 specific device driver resources */
+ error = lpfc_sli_driver_resource_setup(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1404 Failed to set up driver resource.\n");
+ goto out_unset_pci_mem_s3;
+ }
+
+ /* Initialize and populate the iocb list per host */
+ error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1405 Failed to initialize iocb list.\n");
+ goto out_unset_driver_resource_s3;
+ }
+
+ /* Set up common device driver resources */
+ error = lpfc_setup_driver_resource_phase2(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1406 Failed to set up driver resource.\n");
+ goto out_free_iocb_list;
+ }
+
+ /* Get the default values for Model Name and Description */
+ lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
+
+ /* Create SCSI host to the physical port */
+ error = lpfc_create_shost(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1407 Failed to create scsi host.\n");
+ goto out_unset_driver_resource;
+ }
+
+ /* Configure sysfs attributes */
+ vport = phba->pport;
+ error = lpfc_alloc_sysfs_attr(vport);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1476 Failed to allocate sysfs attr\n");
+ goto out_destroy_shost;
+ }
+
+ shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
+ /* Now, trying to enable interrupt and bring up the device */
+ cfg_mode = phba->cfg_use_msi;
+ while (true) {
+ /* Put device to a known state before enabling interrupt */
+ lpfc_stop_port(phba);
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0431 Failed to enable interrupt.\n");
+ error = -ENODEV;
+ goto out_free_sysfs_attr;
+ }
+ /* SLI-3 HBA setup */
+ if (lpfc_sli_hba_setup(phba)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1477 Failed to set up hba\n");
+ error = -ENODEV;
+ goto out_remove_device;
+ }
+
+ /* Wait 50ms for the interrupts of previous mailbox commands */
+ msleep(50);
+ /* Check active interrupts on message signaled interrupts */
+ if (intr_mode == 0 ||
+ phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
+ /* Log the current active interrupt mode */
+ phba->intr_mode = intr_mode;
+ lpfc_log_intr_mode(phba, intr_mode);
+ break;
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0447 Configure interrupt mode (%d) "
+ "failed active interrupt test.\n",
+ intr_mode);
+ /* Disable the current interrupt mode */
+ lpfc_sli_disable_intr(phba);
+ /* Try next level of interrupt mode */
+ cfg_mode = --intr_mode;
+ }
+ }
+
+ /* Perform post initialization setup */
+ lpfc_post_init_setup(phba);
+
+ /* Check if there are static vports to be created. */
+ lpfc_create_static_vport(phba);
+
+ return 0;
+
+out_remove_device:
+ lpfc_unset_hba(phba);
+out_free_sysfs_attr:
+ lpfc_free_sysfs_attr(vport);
+out_destroy_shost:
+ lpfc_destroy_shost(phba);
+out_unset_driver_resource:
+ lpfc_unset_driver_resource_phase2(phba);
+out_free_iocb_list:
+ lpfc_free_iocb_list(phba);
+out_unset_driver_resource_s3:
+ lpfc_sli_driver_resource_unset(phba);
+out_unset_pci_mem_s3:
+ lpfc_sli_pci_mem_unset(phba);
+out_disable_pci_dev:
+ lpfc_disable_pci_dev(phba);
+ if (shost)
+ scsi_host_put(shost);
+out_free_phba:
+ lpfc_hba_free(phba);
+ return error;
+}
+
+/**
+ * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be called to disattach a device with SLI-3 interface
+ * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
+ * removed from PCI bus, it performs all the necessary cleanup for the HBA
+ * device to be removed from the PCI subsystem properly.
+ **/
+static void
+lpfc_pci_remove_one_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_vport **vports;
+ struct lpfc_hba *phba = vport->phba;
+ int i;
+ int bars = pci_select_bars(pdev, IORESOURCE_MEM);
+
+ spin_lock_irq(&phba->hbalock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_free_sysfs_attr(vport);
+
+ /* Release all the vports against this physical port */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
+ continue;
+ fc_vport_terminate(vports[i]->fc_vport);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ /* Remove FC host and then SCSI host with the physical port */
+ fc_remove_host(shost);
+ scsi_remove_host(shost);
+ lpfc_cleanup(vport);
+
+ /*
+ * Bring down the SLI Layer. This step disable all interrupts,
+ * clears the rings, discards all mailbox commands, and resets
+ * the HBA.
+ */
+
+ /* HBA interrupt will be disabled after this call */
+ lpfc_sli_hba_down(phba);
+ /* Stop kthread signal shall trigger work_done one more time */
+ kthread_stop(phba->worker_thread);
+ /* Final cleanup of txcmplq and reset the HBA */
+ lpfc_sli_brdrestart(phba);
+
+ kfree(phba->vpi_bmask);
+ kfree(phba->vpi_ids);
+
+ lpfc_stop_hba_timers(phba);
+ spin_lock_irq(&phba->hbalock);
+ list_del_init(&vport->listentry);
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_debugfs_terminate(vport);
+
+ /* Disable SR-IOV if enabled */
+ if (phba->cfg_sriov_nr_virtfn)
+ pci_disable_sriov(pdev);
+
+ /* Disable interrupt */
+ lpfc_sli_disable_intr(phba);
+
+ scsi_host_put(shost);
+
+ /*
+ * Call scsi_free before mem_free since scsi bufs are released to their
+ * corresponding pools here.
+ */
+ lpfc_scsi_free(phba);
+ lpfc_mem_free_all(phba);
+
+ dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
+ phba->hbqslimp.virt, phba->hbqslimp.phys);
+
+ /* Free resources associated with SLI2 interface */
+ dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
+ phba->slim2p.virt, phba->slim2p.phys);
+
+ /* unmap adapter SLIM and Control Registers */
+ iounmap(phba->ctrl_regs_memmap_p);
+ iounmap(phba->slim_memmap_p);
+
+ lpfc_hba_free(phba);
+
+ pci_release_selected_regions(pdev, bars);
+ pci_disable_device(pdev);
+}
+
+/**
+ * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
+ * @pdev: pointer to PCI device
+ * @msg: power management message
+ *
+ * This routine is to be called from the kernel's PCI subsystem to support
+ * system Power Management (PM) to device with SLI-3 interface spec. When
+ * PM invokes this method, it quiesces the device by stopping the driver's
+ * worker thread for the device, turning off device's interrupt and DMA,
+ * and bring the device offline. Note that as the driver implements the
+ * minimum PM requirements to a power-aware driver's PM support for the
+ * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
+ * to the suspend() method call will be treated as SUSPEND and the driver will
+ * fully reinitialize its device during resume() method call, the driver will
+ * set device to PCI_D3hot state in PCI config space instead of setting it
+ * according to the @msg provided by the PM.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0473 PCI device Power Management suspend.\n");
+
+ /* Bring down the device */
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ lpfc_offline(phba);
+ kthread_stop(phba->worker_thread);
+
+ /* Disable interrupt from device */
+ lpfc_sli_disable_intr(phba);
+
+ /* Save device state to PCI config space */
+ pci_save_state(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return 0;
+}
+
+/**
+ * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be called from the kernel's PCI subsystem to support
+ * system Power Management (PM) to device with SLI-3 interface spec. When PM
+ * invokes this method, it restores the device's PCI config space state and
+ * fully reinitializes the device and brings it online. Note that as the
+ * driver implements the minimum PM requirements to a power-aware driver's
+ * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
+ * FREEZE) to the suspend() method call will be treated as SUSPEND and the
+ * driver will fully reinitialize its device during resume() method call,
+ * the device will be set to PCI_D0 directly in PCI config space before
+ * restoring the state.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_resume_one_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ uint32_t intr_mode;
+ int error;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0452 PCI device Power Management resume.\n");
+
+ /* Restore device state from PCI config space */
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ /*
+ * As the new kernel behavior of pci_restore_state() API call clears
+ * device saved_state flag, need to save the restored state again.
+ */
+ pci_save_state(pdev);
+
+ if (pdev->is_busmaster)
+ pci_set_master(pdev);
+
+ /* Startup the kernel thread for this host adapter. */
+ phba->worker_thread = kthread_run(lpfc_do_work, phba,
+ "lpfc_worker_%d", phba->brd_no);
+ if (IS_ERR(phba->worker_thread)) {
+ error = PTR_ERR(phba->worker_thread);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0434 PM resume failed to start worker "
+ "thread: error=x%x.\n", error);
+ return error;
+ }
+
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0430 PM resume Failed to enable interrupt\n");
+ return -EIO;
+ } else
+ phba->intr_mode = intr_mode;
+
+ /* Restart HBA and bring it online */
+ lpfc_sli_brdrestart(phba);
+ lpfc_online(phba);
+
+ /* Log the current active interrupt mode */
+ lpfc_log_intr_mode(phba, phba->intr_mode);
+
+ return 0;
+}
+
+/**
+ * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to prepare the SLI3 device for PCI slot recover. It
+ * aborts all the outstanding SCSI I/Os to the pci device.
+ **/
+static void
+lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
+{
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2723 PCI channel I/O abort preparing for recovery\n");
+
+ /*
+ * There may be errored I/Os through HBA, abort all I/Os on txcmplq
+ * and let the SCSI mid-layer to retry them to recover.
+ */
+ lpfc_sli_abort_fcp_rings(phba);
+}
+
+/**
+ * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to prepare the SLI3 device for PCI slot reset. It
+ * disables the device interrupt and pci device, and aborts the internal FCP
+ * pending I/Os.
+ **/
+static void
+lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
+{
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2710 PCI channel disable preparing for reset\n");
+
+ /* Block any management I/Os to the device */
+ lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
+
+ /* Block all SCSI devices' I/Os on the host */
+ lpfc_scsi_dev_block(phba);
+
+ /* Flush all driver's outstanding SCSI I/Os as we are to reset */
+ lpfc_sli_flush_fcp_rings(phba);
+
+ /* stop all timers */
+ lpfc_stop_hba_timers(phba);
+
+ /* Disable interrupt and pci device */
+ lpfc_sli_disable_intr(phba);
+ pci_disable_device(phba->pcidev);
+}
+
+/**
+ * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to prepare the SLI3 device for PCI slot permanently
+ * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
+ * pending I/Os.
+ **/
+static void
+lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
+{
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2711 PCI channel permanent disable for failure\n");
+ /* Block all SCSI devices' I/Os on the host */
+ lpfc_scsi_dev_block(phba);
+
+ /* stop all timers */
+ lpfc_stop_hba_timers(phba);
+
+ /* Clean up all driver's outstanding SCSI I/Os */
+ lpfc_sli_flush_fcp_rings(phba);
+}
+
+/**
+ * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
+ * @pdev: pointer to PCI device.
+ * @state: the current PCI connection state.
+ *
+ * This routine is called from the PCI subsystem for I/O error handling to
+ * device with SLI-3 interface spec. This function is called by the PCI
+ * subsystem after a PCI bus error affecting this device has been detected.
+ * When this function is invoked, it will need to stop all the I/Os and
+ * interrupt(s) to the device. Once that is done, it will return
+ * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
+ * as desired.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
+ * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ **/
+static pci_ers_result_t
+lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ switch (state) {
+ case pci_channel_io_normal:
+ /* Non-fatal error, prepare for recovery */
+ lpfc_sli_prep_dev_for_recover(phba);
+ return PCI_ERS_RESULT_CAN_RECOVER;
+ case pci_channel_io_frozen:
+ /* Fatal error, prepare for slot reset */
+ lpfc_sli_prep_dev_for_reset(phba);
+ return PCI_ERS_RESULT_NEED_RESET;
+ case pci_channel_io_perm_failure:
+ /* Permanent failure, prepare for device down */
+ lpfc_sli_prep_dev_for_perm_failure(phba);
+ return PCI_ERS_RESULT_DISCONNECT;
+ default:
+ /* Unknown state, prepare and request slot reset */
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0472 Unknown PCI error state: x%x\n", state);
+ lpfc_sli_prep_dev_for_reset(phba);
+ return PCI_ERS_RESULT_NEED_RESET;
+ }
+}
+
+/**
+ * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
+ * @pdev: pointer to PCI device.
+ *
+ * This routine is called from the PCI subsystem for error handling to
+ * device with SLI-3 interface spec. This is called after PCI bus has been
+ * reset to restart the PCI card from scratch, as if from a cold-boot.
+ * During the PCI subsystem error recovery, after driver returns
+ * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
+ * recovery and then call this routine before calling the .resume method
+ * to recover the device. This function will initialize the HBA device,
+ * enable the interrupt, but it will just put the HBA to offline state
+ * without passing any I/O traffic.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_RECOVERED - the device has been recovered
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ */
+static pci_ers_result_t
+lpfc_io_slot_reset_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ uint32_t intr_mode;
+
+ dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
+ if (pci_enable_device_mem(pdev)) {
+ printk(KERN_ERR "lpfc: Cannot re-enable "
+ "PCI device after reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ pci_restore_state(pdev);
+
+ /*
+ * As the new kernel behavior of pci_restore_state() API call clears
+ * device saved_state flag, need to save the restored state again.
+ */
+ pci_save_state(pdev);
+
+ if (pdev->is_busmaster)
+ pci_set_master(pdev);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0427 Cannot re-enable interrupt after "
+ "slot reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ } else
+ phba->intr_mode = intr_mode;
+
+ /* Take device offline, it will perform cleanup */
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+
+ /* Log the current active interrupt mode */
+ lpfc_log_intr_mode(phba, phba->intr_mode);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is called from the PCI subsystem for error handling to device
+ * with SLI-3 interface spec. It is called when kernel error recovery tells
+ * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
+ * error recovery. After this call, traffic can start to flow from this device
+ * again.
+ */
+static void
+lpfc_io_resume_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ /* Bring device online, it will be no-op for non-fatal error resume */
+ lpfc_online(phba);
+
+ /* Clean up Advanced Error Reporting (AER) if needed */
+ if (phba->hba_flag & HBA_AER_ENABLED)
+ pci_cleanup_aer_uncorrect_error_status(pdev);
+}
+
+/**
+ * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * returns the number of ELS/CT IOCBs to reserve
+ **/
+int
+lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
+{
+ int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
+
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (max_xri <= 100)
+ return 10;
+ else if (max_xri <= 256)
+ return 25;
+ else if (max_xri <= 512)
+ return 50;
+ else if (max_xri <= 1024)
+ return 100;
+ else if (max_xri <= 1536)
+ return 150;
+ else if (max_xri <= 2048)
+ return 200;
+ else
+ return 250;
+ } else
+ return 0;
+}
+
+/**
+ * lpfc_write_firmware - attempt to write a firmware image to the port
+ * @fw: pointer to firmware image returned from request_firmware.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ **/
+static void
+lpfc_write_firmware(const struct firmware *fw, void *context)
+{
+ struct lpfc_hba *phba = (struct lpfc_hba *)context;
+ char fwrev[FW_REV_STR_SIZE];
+ struct lpfc_grp_hdr *image;
+ struct list_head dma_buffer_list;
+ int i, rc = 0;
+ struct lpfc_dmabuf *dmabuf, *next;
+ uint32_t offset = 0, temp_offset = 0;
+
+ /* It can be null in no-wait mode, sanity check */
+ if (!fw) {
+ rc = -ENXIO;
+ goto out;
+ }
+ image = (struct lpfc_grp_hdr *)fw->data;
+
+ INIT_LIST_HEAD(&dma_buffer_list);
+ if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
+ (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
+ LPFC_FILE_TYPE_GROUP) ||
+ (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
+ (be32_to_cpu(image->size) != fw->size)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3022 Invalid FW image found. "
+ "Magic:%x Type:%x ID:%x\n",
+ be32_to_cpu(image->magic_number),
+ bf_get_be32(lpfc_grp_hdr_file_type, image),
+ bf_get_be32(lpfc_grp_hdr_id, image));
+ rc = -EINVAL;
+ goto release_out;
+ }
+ lpfc_decode_firmware_rev(phba, fwrev, 1);
+ if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3023 Updating Firmware, Current Version:%s "
+ "New Version:%s\n",
+ fwrev, image->revision);
+ for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
+ GFP_KERNEL);
+ if (!dmabuf) {
+ rc = -ENOMEM;
+ goto release_out;
+ }
+ dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
+ SLI4_PAGE_SIZE,
+ &dmabuf->phys,
+ GFP_KERNEL);
+ if (!dmabuf->virt) {
+ kfree(dmabuf);
+ rc = -ENOMEM;
+ goto release_out;
+ }
+ list_add_tail(&dmabuf->list, &dma_buffer_list);
+ }
+ while (offset < fw->size) {
+ temp_offset = offset;
+ list_for_each_entry(dmabuf, &dma_buffer_list, list) {
+ if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
+ memcpy(dmabuf->virt,
+ fw->data + temp_offset,
+ fw->size - temp_offset);
+ temp_offset = fw->size;
+ break;
+ }
+ memcpy(dmabuf->virt, fw->data + temp_offset,
+ SLI4_PAGE_SIZE);
+ temp_offset += SLI4_PAGE_SIZE;
+ }
+ rc = lpfc_wr_object(phba, &dma_buffer_list,
+ (fw->size - offset), &offset);
+ if (rc)
+ goto release_out;
+ }
+ rc = offset;
+ }
+
+release_out:
+ list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
+ list_del(&dmabuf->list);
+ dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
+ dmabuf->virt, dmabuf->phys);
+ kfree(dmabuf);
+ }
+ release_firmware(fw);
+out:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3024 Firmware update done: %d.\n", rc);
+ return;
+}
+
+/**
+ * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to perform Linux generic firmware upgrade on device
+ * that supports such feature.
+ **/
+int
+lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
+{
+ uint8_t file_name[ELX_MODEL_NAME_SIZE];
+ int ret;
+ const struct firmware *fw;
+
+ /* Only supported on SLI4 interface type 2 for now */
+ if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
+ LPFC_SLI_INTF_IF_TYPE_2)
+ return -EPERM;
+
+ snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
+
+ if (fw_upgrade == INT_FW_UPGRADE) {
+ ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
+ file_name, &phba->pcidev->dev,
+ GFP_KERNEL, (void *)phba,
+ lpfc_write_firmware);
+ } else if (fw_upgrade == RUN_FW_UPGRADE) {
+ ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
+ if (!ret)
+ lpfc_write_firmware(fw, (void *)phba);
+ } else {
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+/**
+ * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
+ * @pdev: pointer to PCI device
+ * @pid: pointer to PCI device identifier
+ *
+ * This routine is called from the kernel's PCI subsystem to device with
+ * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
+ * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
+ * information of the device and driver to see if the driver state that it
+ * can support this kind of device. If the match is successful, the driver
+ * core invokes this routine. If this routine determines it can claim the HBA,
+ * it does all the initialization that it needs to do to handle the HBA
+ * properly.
+ *
+ * Return code
+ * 0 - driver can claim the device
+ * negative value - driver can not claim the device
+ **/
+static int
+lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
+{
+ struct lpfc_hba *phba;
+ struct lpfc_vport *vport = NULL;
+ struct Scsi_Host *shost = NULL;
+ int error, ret;
+ uint32_t cfg_mode, intr_mode;
+ int adjusted_fcp_io_channel;
+
+ /* Allocate memory for HBA structure */
+ phba = lpfc_hba_alloc(pdev);
+ if (!phba)
+ return -ENOMEM;
+
+ /* Perform generic PCI device enabling operation */
+ error = lpfc_enable_pci_dev(phba);
+ if (error)
+ goto out_free_phba;
+
+ /* Set up SLI API function jump table for PCI-device group-1 HBAs */
+ error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
+ if (error)
+ goto out_disable_pci_dev;
+
+ /* Set up SLI-4 specific device PCI memory space */
+ error = lpfc_sli4_pci_mem_setup(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1410 Failed to set up pci memory space.\n");
+ goto out_disable_pci_dev;
+ }
+
+ /* Set up phase-1 common device driver resources */
+ error = lpfc_setup_driver_resource_phase1(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1411 Failed to set up driver resource.\n");
+ goto out_unset_pci_mem_s4;
+ }
+
+ /* Set up SLI-4 Specific device driver resources */
+ error = lpfc_sli4_driver_resource_setup(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1412 Failed to set up driver resource.\n");
+ goto out_unset_pci_mem_s4;
+ }
+
+ /* Initialize and populate the iocb list per host */
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2821 initialize iocb list %d.\n",
+ phba->cfg_iocb_cnt*1024);
+ error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
+
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1413 Failed to initialize iocb list.\n");
+ goto out_unset_driver_resource_s4;
+ }
+
+ INIT_LIST_HEAD(&phba->active_rrq_list);
+ INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
+
+ /* Set up common device driver resources */
+ error = lpfc_setup_driver_resource_phase2(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1414 Failed to set up driver resource.\n");
+ goto out_free_iocb_list;
+ }
+
+ /* Get the default values for Model Name and Description */
+ lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
+
+ /* Create SCSI host to the physical port */
+ error = lpfc_create_shost(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1415 Failed to create scsi host.\n");
+ goto out_unset_driver_resource;
+ }
+
+ /* Configure sysfs attributes */
+ vport = phba->pport;
+ error = lpfc_alloc_sysfs_attr(vport);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1416 Failed to allocate sysfs attr\n");
+ goto out_destroy_shost;
+ }
+
+ shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
+ /* Now, trying to enable interrupt and bring up the device */
+ cfg_mode = phba->cfg_use_msi;
+
+ /* Put device to a known state before enabling interrupt */
+ lpfc_stop_port(phba);
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0426 Failed to enable interrupt.\n");
+ error = -ENODEV;
+ goto out_free_sysfs_attr;
+ }
+ /* Default to single EQ for non-MSI-X */
+ if (phba->intr_type != MSIX)
+ adjusted_fcp_io_channel = 1;
+ else
+ adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
+ phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
+ /* Set up SLI-4 HBA */
+ if (lpfc_sli4_hba_setup(phba)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1421 Failed to set up hba\n");
+ error = -ENODEV;
+ goto out_disable_intr;
+ }
+
+ /* Log the current active interrupt mode */
+ phba->intr_mode = intr_mode;
+ lpfc_log_intr_mode(phba, intr_mode);
+
+ /* Perform post initialization setup */
+ lpfc_post_init_setup(phba);
+
+ /* check for firmware upgrade or downgrade */
+ if (phba->cfg_request_firmware_upgrade)
+ ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
+
+ /* Check if there are static vports to be created. */
+ lpfc_create_static_vport(phba);
+ return 0;
+
+out_disable_intr:
+ lpfc_sli4_disable_intr(phba);
+out_free_sysfs_attr:
+ lpfc_free_sysfs_attr(vport);
+out_destroy_shost:
+ lpfc_destroy_shost(phba);
+out_unset_driver_resource:
+ lpfc_unset_driver_resource_phase2(phba);
+out_free_iocb_list:
+ lpfc_free_iocb_list(phba);
+out_unset_driver_resource_s4:
+ lpfc_sli4_driver_resource_unset(phba);
+out_unset_pci_mem_s4:
+ lpfc_sli4_pci_mem_unset(phba);
+out_disable_pci_dev:
+ lpfc_disable_pci_dev(phba);
+ if (shost)
+ scsi_host_put(shost);
+out_free_phba:
+ lpfc_hba_free(phba);
+ return error;
+}
+
+/**
+ * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
+ * @pdev: pointer to PCI device
+ *
+ * This routine is called from the kernel's PCI subsystem to device with
+ * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
+ * removed from PCI bus, it performs all the necessary cleanup for the HBA
+ * device to be removed from the PCI subsystem properly.
+ **/
+static void
+lpfc_pci_remove_one_s4(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_vport **vports;
+ struct lpfc_hba *phba = vport->phba;
+ int i;
+
+ /* Mark the device unloading flag */
+ spin_lock_irq(&phba->hbalock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Free the HBA sysfs attributes */
+ lpfc_free_sysfs_attr(vport);
+
+ /* Release all the vports against this physical port */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
+ continue;
+ fc_vport_terminate(vports[i]->fc_vport);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ /* Remove FC host and then SCSI host with the physical port */
+ fc_remove_host(shost);
+ scsi_remove_host(shost);
+
+ /* Perform cleanup on the physical port */
+ lpfc_cleanup(vport);
+
+ /*
+ * Bring down the SLI Layer. This step disables all interrupts,
+ * clears the rings, discards all mailbox commands, and resets
+ * the HBA FCoE function.
+ */
+ lpfc_debugfs_terminate(vport);
+ lpfc_sli4_hba_unset(phba);
+
+ spin_lock_irq(&phba->hbalock);
+ list_del_init(&vport->listentry);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Perform scsi free before driver resource_unset since scsi
+ * buffers are released to their corresponding pools here.
+ */
+ lpfc_scsi_free(phba);
+
+ lpfc_sli4_driver_resource_unset(phba);
+
+ /* Unmap adapter Control and Doorbell registers */
+ lpfc_sli4_pci_mem_unset(phba);
+
+ /* Release PCI resources and disable device's PCI function */
+ scsi_host_put(shost);
+ lpfc_disable_pci_dev(phba);
+
+ /* Finally, free the driver's device data structure */
+ lpfc_hba_free(phba);
+
+ return;
+}
+
+/**
+ * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
+ * @pdev: pointer to PCI device
+ * @msg: power management message
+ *
+ * This routine is called from the kernel's PCI subsystem to support system
+ * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
+ * this method, it quiesces the device by stopping the driver's worker
+ * thread for the device, turning off device's interrupt and DMA, and bring
+ * the device offline. Note that as the driver implements the minimum PM
+ * requirements to a power-aware driver's PM support for suspend/resume -- all
+ * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
+ * method call will be treated as SUSPEND and the driver will fully
+ * reinitialize its device during resume() method call, the driver will set
+ * device to PCI_D3hot state in PCI config space instead of setting it
+ * according to the @msg provided by the PM.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2843 PCI device Power Management suspend.\n");
+
+ /* Bring down the device */
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ lpfc_offline(phba);
+ kthread_stop(phba->worker_thread);
+
+ /* Disable interrupt from device */
+ lpfc_sli4_disable_intr(phba);
+ lpfc_sli4_queue_destroy(phba);
+
+ /* Save device state to PCI config space */
+ pci_save_state(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return 0;
+}
+
+/**
+ * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
+ * @pdev: pointer to PCI device
+ *
+ * This routine is called from the kernel's PCI subsystem to support system
+ * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
+ * this method, it restores the device's PCI config space state and fully
+ * reinitializes the device and brings it online. Note that as the driver
+ * implements the minimum PM requirements to a power-aware driver's PM for
+ * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
+ * to the suspend() method call will be treated as SUSPEND and the driver
+ * will fully reinitialize its device during resume() method call, the device
+ * will be set to PCI_D0 directly in PCI config space before restoring the
+ * state.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_resume_one_s4(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ uint32_t intr_mode;
+ int error;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0292 PCI device Power Management resume.\n");
+
+ /* Restore device state from PCI config space */
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ /*
+ * As the new kernel behavior of pci_restore_state() API call clears
+ * device saved_state flag, need to save the restored state again.
+ */
+ pci_save_state(pdev);
+
+ if (pdev->is_busmaster)
+ pci_set_master(pdev);
+
+ /* Startup the kernel thread for this host adapter. */
+ phba->worker_thread = kthread_run(lpfc_do_work, phba,
+ "lpfc_worker_%d", phba->brd_no);
+ if (IS_ERR(phba->worker_thread)) {
+ error = PTR_ERR(phba->worker_thread);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0293 PM resume failed to start worker "
+ "thread: error=x%x.\n", error);
+ return error;
+ }
+
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0294 PM resume Failed to enable interrupt\n");
+ return -EIO;
+ } else
+ phba->intr_mode = intr_mode;
+
+ /* Restart HBA and bring it online */
+ lpfc_sli_brdrestart(phba);
+ lpfc_online(phba);
+
+ /* Log the current active interrupt mode */
+ lpfc_log_intr_mode(phba, phba->intr_mode);
+
+ return 0;
+}
+
+/**
+ * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to prepare the SLI4 device for PCI slot recover. It
+ * aborts all the outstanding SCSI I/Os to the pci device.
+ **/
+static void
+lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
+{
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2828 PCI channel I/O abort preparing for recovery\n");
+ /*
+ * There may be errored I/Os through HBA, abort all I/Os on txcmplq
+ * and let the SCSI mid-layer to retry them to recover.
+ */
+ lpfc_sli_abort_fcp_rings(phba);
+}
+
+/**
+ * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to prepare the SLI4 device for PCI slot reset. It
+ * disables the device interrupt and pci device, and aborts the internal FCP
+ * pending I/Os.
+ **/
+static void
+lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
+{
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2826 PCI channel disable preparing for reset\n");
+
+ /* Block any management I/Os to the device */
+ lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
+
+ /* Block all SCSI devices' I/Os on the host */
+ lpfc_scsi_dev_block(phba);
+
+ /* Flush all driver's outstanding SCSI I/Os as we are to reset */
+ lpfc_sli_flush_fcp_rings(phba);
+
+ /* stop all timers */
+ lpfc_stop_hba_timers(phba);
+
+ /* Disable interrupt and pci device */
+ lpfc_sli4_disable_intr(phba);
+ lpfc_sli4_queue_destroy(phba);
+ pci_disable_device(phba->pcidev);
+}
+
+/**
+ * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to prepare the SLI4 device for PCI slot permanently
+ * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
+ * pending I/Os.
+ **/
+static void
+lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
+{
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2827 PCI channel permanent disable for failure\n");
+
+ /* Block all SCSI devices' I/Os on the host */
+ lpfc_scsi_dev_block(phba);
+
+ /* stop all timers */
+ lpfc_stop_hba_timers(phba);
+
+ /* Clean up all driver's outstanding SCSI I/Os */
+ lpfc_sli_flush_fcp_rings(phba);
+}
+
+/**
+ * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
+ * @pdev: pointer to PCI device.
+ * @state: the current PCI connection state.
+ *
+ * This routine is called from the PCI subsystem for error handling to device
+ * with SLI-4 interface spec. This function is called by the PCI subsystem
+ * after a PCI bus error affecting this device has been detected. When this
+ * function is invoked, it will need to stop all the I/Os and interrupt(s)
+ * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
+ * for the PCI subsystem to perform proper recovery as desired.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ **/
+static pci_ers_result_t
+lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ switch (state) {
+ case pci_channel_io_normal:
+ /* Non-fatal error, prepare for recovery */
+ lpfc_sli4_prep_dev_for_recover(phba);
+ return PCI_ERS_RESULT_CAN_RECOVER;
+ case pci_channel_io_frozen:
+ /* Fatal error, prepare for slot reset */
+ lpfc_sli4_prep_dev_for_reset(phba);
+ return PCI_ERS_RESULT_NEED_RESET;
+ case pci_channel_io_perm_failure:
+ /* Permanent failure, prepare for device down */
+ lpfc_sli4_prep_dev_for_perm_failure(phba);
+ return PCI_ERS_RESULT_DISCONNECT;
+ default:
+ /* Unknown state, prepare and request slot reset */
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2825 Unknown PCI error state: x%x\n", state);
+ lpfc_sli4_prep_dev_for_reset(phba);
+ return PCI_ERS_RESULT_NEED_RESET;
+ }
+}
+
+/**
+ * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
+ * @pdev: pointer to PCI device.
+ *
+ * This routine is called from the PCI subsystem for error handling to device
+ * with SLI-4 interface spec. It is called after PCI bus has been reset to
+ * restart the PCI card from scratch, as if from a cold-boot. During the
+ * PCI subsystem error recovery, after the driver returns
+ * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
+ * recovery and then call this routine before calling the .resume method to
+ * recover the device. This function will initialize the HBA device, enable
+ * the interrupt, but it will just put the HBA to offline state without
+ * passing any I/O traffic.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_RECOVERED - the device has been recovered
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ */
+static pci_ers_result_t
+lpfc_io_slot_reset_s4(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ uint32_t intr_mode;
+
+ dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
+ if (pci_enable_device_mem(pdev)) {
+ printk(KERN_ERR "lpfc: Cannot re-enable "
+ "PCI device after reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ pci_restore_state(pdev);
+
+ /*
+ * As the new kernel behavior of pci_restore_state() API call clears
+ * device saved_state flag, need to save the restored state again.
+ */
+ pci_save_state(pdev);
+
+ if (pdev->is_busmaster)
+ pci_set_master(pdev);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2824 Cannot re-enable interrupt after "
+ "slot reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ } else
+ phba->intr_mode = intr_mode;
+
+ /* Log the current active interrupt mode */
+ lpfc_log_intr_mode(phba, phba->intr_mode);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
+ * @pdev: pointer to PCI device
+ *
+ * This routine is called from the PCI subsystem for error handling to device
+ * with SLI-4 interface spec. It is called when kernel error recovery tells
+ * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
+ * error recovery. After this call, traffic can start to flow from this device
+ * again.
+ **/
+static void
+lpfc_io_resume_s4(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ /*
+ * In case of slot reset, as function reset is performed through
+ * mailbox command which needs DMA to be enabled, this operation
+ * has to be moved to the io resume phase. Taking device offline
+ * will perform the necessary cleanup.
+ */
+ if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
+ /* Perform device reset */
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+ /* Bring the device back online */
+ lpfc_online(phba);
+ }
+
+ /* Clean up Advanced Error Reporting (AER) if needed */
+ if (phba->hba_flag & HBA_AER_ENABLED)
+ pci_cleanup_aer_uncorrect_error_status(pdev);
+}
+
+/**
+ * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
+ * @pdev: pointer to PCI device
+ * @pid: pointer to PCI device identifier
+ *
+ * This routine is to be registered to the kernel's PCI subsystem. When an
+ * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
+ * at PCI device-specific information of the device and driver to see if the
+ * driver state that it can support this kind of device. If the match is
+ * successful, the driver core invokes this routine. This routine dispatches
+ * the action to the proper SLI-3 or SLI-4 device probing routine, which will
+ * do all the initialization that it needs to do to handle the HBA device
+ * properly.
+ *
+ * Return code
+ * 0 - driver can claim the device
+ * negative value - driver can not claim the device
+ **/
+static int
+lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
+{
+ int rc;
+ struct lpfc_sli_intf intf;
+
+ if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
+ return -ENODEV;
+
+ if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
+ (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
+ rc = lpfc_pci_probe_one_s4(pdev, pid);
+ else
+ rc = lpfc_pci_probe_one_s3(pdev, pid);
+
+ return rc;
+}
+
+/**
+ * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be registered to the kernel's PCI subsystem. When an
+ * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
+ * This routine dispatches the action to the proper SLI-3 or SLI-4 device
+ * remove routine, which will perform all the necessary cleanup for the
+ * device to be removed from the PCI subsystem properly.
+ **/
+static void
+lpfc_pci_remove_one(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ lpfc_pci_remove_one_s3(pdev);
+ break;
+ case LPFC_PCI_DEV_OC:
+ lpfc_pci_remove_one_s4(pdev);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1424 Invalid PCI device group: 0x%x\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return;
+}
+
+/**
+ * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
+ * @pdev: pointer to PCI device
+ * @msg: power management message
+ *
+ * This routine is to be registered to the kernel's PCI subsystem to support
+ * system Power Management (PM). When PM invokes this method, it dispatches
+ * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
+ * suspend the device.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ int rc = -ENODEV;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ rc = lpfc_pci_suspend_one_s3(pdev, msg);
+ break;
+ case LPFC_PCI_DEV_OC:
+ rc = lpfc_pci_suspend_one_s4(pdev, msg);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1425 Invalid PCI device group: 0x%x\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be registered to the kernel's PCI subsystem to support
+ * system Power Management (PM). When PM invokes this method, it dispatches
+ * the action to the proper SLI-3 or SLI-4 device resume routine, which will
+ * resume the device.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_resume_one(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ int rc = -ENODEV;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ rc = lpfc_pci_resume_one_s3(pdev);
+ break;
+ case LPFC_PCI_DEV_OC:
+ rc = lpfc_pci_resume_one_s4(pdev);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1426 Invalid PCI device group: 0x%x\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_io_error_detected - lpfc method for handling PCI I/O error
+ * @pdev: pointer to PCI device.
+ * @state: the current PCI connection state.
+ *
+ * This routine is registered to the PCI subsystem for error handling. This
+ * function is called by the PCI subsystem after a PCI bus error affecting
+ * this device has been detected. When this routine is invoked, it dispatches
+ * the action to the proper SLI-3 or SLI-4 device error detected handling
+ * routine, which will perform the proper error detected operation.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ **/
+static pci_ers_result_t
+lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ rc = lpfc_io_error_detected_s3(pdev, state);
+ break;
+ case LPFC_PCI_DEV_OC:
+ rc = lpfc_io_error_detected_s4(pdev, state);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1427 Invalid PCI device group: 0x%x\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
+ * @pdev: pointer to PCI device.
+ *
+ * This routine is registered to the PCI subsystem for error handling. This
+ * function is called after PCI bus has been reset to restart the PCI card
+ * from scratch, as if from a cold-boot. When this routine is invoked, it
+ * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
+ * routine, which will perform the proper device reset.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_RECOVERED - the device has been recovered
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ **/
+static pci_ers_result_t
+lpfc_io_slot_reset(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ rc = lpfc_io_slot_reset_s3(pdev);
+ break;
+ case LPFC_PCI_DEV_OC:
+ rc = lpfc_io_slot_reset_s4(pdev);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1428 Invalid PCI device group: 0x%x\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_io_resume - lpfc method for resuming PCI I/O operation
+ * @pdev: pointer to PCI device
+ *
+ * This routine is registered to the PCI subsystem for error handling. It
+ * is called when kernel error recovery tells the lpfc driver that it is
+ * OK to resume normal PCI operation after PCI bus error recovery. When
+ * this routine is invoked, it dispatches the action to the proper SLI-3
+ * or SLI-4 device io_resume routine, which will resume the device operation.
+ **/
+static void
+lpfc_io_resume(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ switch (phba->pci_dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ lpfc_io_resume_s3(pdev);
+ break;
+ case LPFC_PCI_DEV_OC:
+ lpfc_io_resume_s4(pdev);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1429 Invalid PCI device group: 0x%x\n",
+ phba->pci_dev_grp);
+ break;
+ }
+ return;
+}
+
+/**
+ * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine checks to see if OAS is supported for this adapter. If
+ * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
+ * the enable oas flag is cleared and the pool created for OAS device data
+ * is destroyed.
+ *
+ **/
+void
+lpfc_sli4_oas_verify(struct lpfc_hba *phba)
+{
+
+ if (!phba->cfg_EnableXLane)
+ return;
+
+ if (phba->sli4_hba.pc_sli4_params.oas_supported) {
+ phba->cfg_fof = 1;
+ } else {
+ phba->cfg_fof = 0;
+ if (phba->device_data_mem_pool)
+ mempool_destroy(phba->device_data_mem_pool);
+ phba->device_data_mem_pool = NULL;
+ }
+
+ return;
+}
+
+/**
+ * lpfc_fof_queue_setup - Set up all the fof queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up all the fof queues for the FC HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No available memory
+ **/
+int
+lpfc_fof_queue_setup(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ int rc;
+
+ rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
+ if (rc)
+ return -ENOMEM;
+
+ if (phba->cfg_fof) {
+
+ rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
+ phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
+ if (rc)
+ goto out_oas_cq;
+
+ rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
+ phba->sli4_hba.oas_cq, LPFC_FCP);
+ if (rc)
+ goto out_oas_wq;
+
+ phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
+ phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
+ }
+
+ return 0;
+
+out_oas_wq:
+ lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
+out_oas_cq:
+ lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
+ return rc;
+
+}
+
+/**
+ * lpfc_fof_queue_create - Create all the fof queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate all the fof queues for the FC HBA
+ * operation. For each SLI4 queue type, the parameters such as queue entry
+ * count (queue depth) shall be taken from the module parameter. For now,
+ * we just use some constant number as place holder.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - No availble memory
+ * -EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_fof_queue_create(struct lpfc_hba *phba)
+{
+ struct lpfc_queue *qdesc;
+
+ /* Create FOF EQ */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
+ phba->sli4_hba.eq_ecount);
+ if (!qdesc)
+ goto out_error;
+
+ phba->sli4_hba.fof_eq = qdesc;
+
+ if (phba->cfg_fof) {
+
+ /* Create OAS CQ */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc)
+ goto out_error;
+
+ phba->sli4_hba.oas_cq = qdesc;
+
+ /* Create OAS WQ */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+ phba->sli4_hba.wq_ecount);
+ if (!qdesc)
+ goto out_error;
+
+ phba->sli4_hba.oas_wq = qdesc;
+
+ }
+ return 0;
+
+out_error:
+ lpfc_fof_queue_destroy(phba);
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_fof_queue_destroy - Destroy all the fof queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release all the SLI4 queues with the FC HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - successful
+ **/
+int
+lpfc_fof_queue_destroy(struct lpfc_hba *phba)
+{
+ /* Release FOF Event queue */
+ if (phba->sli4_hba.fof_eq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
+ phba->sli4_hba.fof_eq = NULL;
+ }
+
+ /* Release OAS Completion queue */
+ if (phba->sli4_hba.oas_cq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
+ phba->sli4_hba.oas_cq = NULL;
+ }
+
+ /* Release OAS Work queue */
+ if (phba->sli4_hba.oas_wq != NULL) {
+ lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
+ phba->sli4_hba.oas_wq = NULL;
+ }
+ return 0;
+}
+
+static struct pci_device_id lpfc_id_table[] = {
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(pci, lpfc_id_table);
+
+static const struct pci_error_handlers lpfc_err_handler = {
+ .error_detected = lpfc_io_error_detected,
+ .slot_reset = lpfc_io_slot_reset,
+ .resume = lpfc_io_resume,
+};
+
+static struct pci_driver lpfc_driver = {
+ .name = LPFC_DRIVER_NAME,
+ .id_table = lpfc_id_table,
+ .probe = lpfc_pci_probe_one,
+ .remove = lpfc_pci_remove_one,
+ .suspend = lpfc_pci_suspend_one,
+ .resume = lpfc_pci_resume_one,
+ .err_handler = &lpfc_err_handler,
+};
+
+static const struct file_operations lpfc_mgmt_fop = {
+ .owner = THIS_MODULE,
+};
+
+static struct miscdevice lpfc_mgmt_dev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "lpfcmgmt",
+ .fops = &lpfc_mgmt_fop,
+};
+
+/**
+ * lpfc_init - lpfc module initialization routine
+ *
+ * This routine is to be invoked when the lpfc module is loaded into the
+ * kernel. The special kernel macro module_init() is used to indicate the
+ * role of this routine to the kernel as lpfc module entry point.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - FC attach transport failed
+ * all others - failed
+ */
+static int __init
+lpfc_init(void)
+{
+ int cpu;
+ int error = 0;
+
+ printk(LPFC_MODULE_DESC "\n");
+ printk(LPFC_COPYRIGHT "\n");
+
+ error = misc_register(&lpfc_mgmt_dev);
+ if (error)
+ printk(KERN_ERR "Could not register lpfcmgmt device, "
+ "misc_register returned with status %d", error);
+
+ if (lpfc_enable_npiv) {
+ lpfc_transport_functions.vport_create = lpfc_vport_create;
+ lpfc_transport_functions.vport_delete = lpfc_vport_delete;
+ }
+ lpfc_transport_template =
+ fc_attach_transport(&lpfc_transport_functions);
+ if (lpfc_transport_template == NULL)
+ return -ENOMEM;
+ if (lpfc_enable_npiv) {
+ lpfc_vport_transport_template =
+ fc_attach_transport(&lpfc_vport_transport_functions);
+ if (lpfc_vport_transport_template == NULL) {
+ fc_release_transport(lpfc_transport_template);
+ return -ENOMEM;
+ }
+ }
+
+ /* Initialize in case vector mapping is needed */
+ lpfc_used_cpu = NULL;
+ lpfc_present_cpu = 0;
+ for_each_present_cpu(cpu)
+ lpfc_present_cpu++;
+
+ error = pci_register_driver(&lpfc_driver);
+ if (error) {
+ fc_release_transport(lpfc_transport_template);
+ if (lpfc_enable_npiv)
+ fc_release_transport(lpfc_vport_transport_template);
+ }
+
+ return error;
+}
+
+/**
+ * lpfc_exit - lpfc module removal routine
+ *
+ * This routine is invoked when the lpfc module is removed from the kernel.
+ * The special kernel macro module_exit() is used to indicate the role of
+ * this routine to the kernel as lpfc module exit point.
+ */
+static void __exit
+lpfc_exit(void)
+{
+ misc_deregister(&lpfc_mgmt_dev);
+ pci_unregister_driver(&lpfc_driver);
+ fc_release_transport(lpfc_transport_template);
+ if (lpfc_enable_npiv)
+ fc_release_transport(lpfc_vport_transport_template);
+ if (_dump_buf_data) {
+ printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
+ "_dump_buf_data at 0x%p\n",
+ (1L << _dump_buf_data_order), _dump_buf_data);
+ free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
+ }
+
+ if (_dump_buf_dif) {
+ printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
+ "_dump_buf_dif at 0x%p\n",
+ (1L << _dump_buf_dif_order), _dump_buf_dif);
+ free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
+ }
+ kfree(lpfc_used_cpu);
+}
+
+module_init(lpfc_init);
+module_exit(lpfc_exit);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(LPFC_MODULE_DESC);
+MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
+MODULE_VERSION("0:" LPFC_DRIVER_VERSION);