diff options
Diffstat (limited to 'kernel/include/scsi/fc')
| -rw-r--r-- | kernel/include/scsi/fc/Kbuild | 0 | ||||
| -rw-r--r-- | kernel/include/scsi/fc/fc_encaps.h | 138 | ||||
| -rw-r--r-- | kernel/include/scsi/fc/fc_fc2.h | 123 | ||||
| -rw-r--r-- | kernel/include/scsi/fc/fc_fcoe.h | 108 | ||||
| -rw-r--r-- | kernel/include/scsi/fc/fc_fcp.h | 216 | ||||
| -rw-r--r-- | kernel/include/scsi/fc/fc_fip.h | 280 | ||||
| -rw-r--r-- | kernel/include/scsi/fc/fc_ms.h | 213 |
7 files changed, 1078 insertions, 0 deletions
diff --git a/kernel/include/scsi/fc/Kbuild b/kernel/include/scsi/fc/Kbuild new file mode 100644 index 000000000..e69de29bb --- /dev/null +++ b/kernel/include/scsi/fc/Kbuild diff --git a/kernel/include/scsi/fc/fc_encaps.h b/kernel/include/scsi/fc/fc_encaps.h new file mode 100644 index 000000000..f180c3e16 --- /dev/null +++ b/kernel/include/scsi/fc/fc_encaps.h @@ -0,0 +1,138 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ +#ifndef _FC_ENCAPS_H_ +#define _FC_ENCAPS_H_ + +/* + * Protocol definitions from RFC 3643 - Fibre Channel Frame Encapsulation. + * + * Note: The frame length field is the number of 32-bit words in + * the encapsulation including the fcip_encaps_header, CRC and EOF words. + * The minimum frame length value in bytes is (32 + 24 + 4 + 4) * 4 = 64. + * The maximum frame length value in bytes is (32 + 24 + 2112 + 4 + 4) = 2172. + */ +#define FC_ENCAPS_MIN_FRAME_LEN 64 /* min frame len (bytes) (see above) */ +#define FC_ENCAPS_MAX_FRAME_LEN (FC_ENCAPS_MIN_FRAME_LEN + FC_MAX_PAYLOAD) + +#define FC_ENCAPS_VER 1 /* current version number */ + +struct fc_encaps_hdr { + __u8 fc_proto; /* protocol number */ + __u8 fc_ver; /* version of encapsulation */ + __u8 fc_proto_n; /* ones complement of protocol */ + __u8 fc_ver_n; /* ones complement of version */ + + unsigned char fc_proto_data[8]; /* protocol specific data */ + + __be16 fc_len_flags; /* 10-bit length/4 w/ 6 flag bits */ + __be16 fc_len_flags_n; /* ones complement of length / flags */ + + /* + * Offset 0x10 + */ + __be32 fc_time[2]; /* time stamp: seconds and fraction */ + __be32 fc_crc; /* CRC */ + __be32 fc_sof; /* start of frame (see FC_SOF below) */ + + /* 0x20 - FC frame content followed by EOF word */ +}; + +#define FCIP_ENCAPS_HDR_LEN 0x20 /* expected length for asserts */ + +/* + * Macro's for making redundant copies of EOF and SOF. + */ +#define FC_XY(x, y) ((((x) & 0xff) << 8) | ((y) & 0xff)) +#define FC_XYXY(x, y) ((FCIP_XY(x, y) << 16) | FCIP_XY(x, y)) +#define FC_XYNN(x, y) (FCIP_XYXY(x, y) ^ 0xffff) + +#define FC_SOF_ENCODE(n) FC_XYNN(n, n) +#define FC_EOF_ENCODE(n) FC_XYNN(n, n) + +/* + * SOF / EOF bytes. + */ +enum fc_sof { + FC_SOF_F = 0x28, /* fabric */ + FC_SOF_I4 = 0x29, /* initiate class 4 */ + FC_SOF_I2 = 0x2d, /* initiate class 2 */ + FC_SOF_I3 = 0x2e, /* initiate class 3 */ + FC_SOF_N4 = 0x31, /* normal class 4 */ + FC_SOF_N2 = 0x35, /* normal class 2 */ + FC_SOF_N3 = 0x36, /* normal class 3 */ + FC_SOF_C4 = 0x39, /* activate class 4 */ +} __attribute__((packed)); + +enum fc_eof { + FC_EOF_N = 0x41, /* normal (not last frame of seq) */ + FC_EOF_T = 0x42, /* terminate (last frame of sequence) */ + FC_EOF_RT = 0x44, + FC_EOF_DT = 0x46, /* disconnect-terminate class-1 */ + FC_EOF_NI = 0x49, /* normal-invalid */ + FC_EOF_DTI = 0x4e, /* disconnect-terminate-invalid */ + FC_EOF_RTI = 0x4f, + FC_EOF_A = 0x50, /* abort */ +} __attribute__((packed)); + +#define FC_SOF_CLASS_MASK 0x06 /* mask for class of service in SOF */ + +/* + * Define classes in terms of the SOF code (initial). + */ +enum fc_class { + FC_CLASS_NONE = 0, /* software value indicating no class */ + FC_CLASS_2 = FC_SOF_I2, + FC_CLASS_3 = FC_SOF_I3, + FC_CLASS_4 = FC_SOF_I4, + FC_CLASS_F = FC_SOF_F, +}; + +/* + * Determine whether SOF code indicates the need for a BLS ACK. + */ +static inline int fc_sof_needs_ack(enum fc_sof sof) +{ + return (~sof) & 0x02; /* true for class 1, 2, 4, 6, or F */ +} + +/* + * Given an fc_class, return the normal (non-initial) SOF value. + */ +static inline enum fc_sof fc_sof_normal(enum fc_class class) +{ + return class + FC_SOF_N3 - FC_SOF_I3; /* diff is always 8 */ +} + +/* + * Compute class from SOF value. + */ +static inline enum fc_class fc_sof_class(enum fc_sof sof) +{ + return (sof & 0x7) | FC_SOF_F; +} + +/* + * Determine whether SOF is for the initial frame of a sequence. + */ +static inline int fc_sof_is_init(enum fc_sof sof) +{ + return sof < 0x30; +} + +#endif /* _FC_ENCAPS_H_ */ diff --git a/kernel/include/scsi/fc/fc_fc2.h b/kernel/include/scsi/fc/fc_fc2.h new file mode 100644 index 000000000..0b2671431 --- /dev/null +++ b/kernel/include/scsi/fc/fc_fc2.h @@ -0,0 +1,123 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FC2_H_ +#define _FC_FC2_H_ + +/* + * Fibre Channel Exchanges and Sequences. + */ +#ifndef PACKED +#define PACKED __attribute__ ((__packed__)) +#endif /* PACKED */ + + +/* + * Sequence Status Block. + * This format is set by the FC-FS standard and is sent over the wire. + * Note that the fields aren't all naturally aligned. + */ +struct fc_ssb { + __u8 ssb_seq_id; /* sequence ID */ + __u8 _ssb_resvd; + __be16 ssb_low_seq_cnt; /* lowest SEQ_CNT */ + + __be16 ssb_high_seq_cnt; /* highest SEQ_CNT */ + __be16 ssb_s_stat; /* sequence status flags */ + + __be16 ssb_err_seq_cnt; /* error SEQ_CNT */ + __u8 ssb_fh_cs_ctl; /* frame header CS_CTL */ + __be16 ssb_fh_ox_id; /* frame header OX_ID */ + __be16 ssb_rx_id; /* responder's exchange ID */ + __u8 _ssb_resvd2[2]; +} PACKED; + +/* + * The SSB should be 17 bytes. Since it's layout is somewhat strange, + * we define the size here so that code can ASSERT that the size comes out + * correct. + */ +#define FC_SSB_SIZE 17 /* length of fc_ssb for assert */ + +/* + * ssb_s_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. + */ +#define SSB_ST_RESP (1 << 15) /* sequence responder */ +#define SSB_ST_ACTIVE (1 << 14) /* sequence is active */ +#define SSB_ST_ABNORMAL (1 << 12) /* abnormal ending condition */ + +#define SSB_ST_REQ_MASK (3 << 10) /* ACK, abort sequence condition */ +#define SSB_ST_REQ_CONT (0 << 10) +#define SSB_ST_REQ_ABORT (1 << 10) +#define SSB_ST_REQ_STOP (2 << 10) +#define SSB_ST_REQ_RETRANS (3 << 10) + +#define SSB_ST_ABTS (1 << 9) /* ABTS protocol completed */ +#define SSB_ST_RETRANS (1 << 8) /* retransmission completed */ +#define SSB_ST_TIMEOUT (1 << 7) /* sequence timed out by recipient */ +#define SSB_ST_P_RJT (1 << 6) /* P_RJT transmitted */ + +#define SSB_ST_CLASS_BIT 4 /* class of service field LSB */ +#define SSB_ST_CLASS_MASK 3 /* class of service mask */ +#define SSB_ST_ACK (1 << 3) /* ACK (EOFt or EOFdt) transmitted */ + +/* + * Exchange Status Block. + * This format is set by the FC-FS standard and is sent over the wire. + * Note that the fields aren't all naturally aligned. + */ +struct fc_esb { + __u8 esb_cs_ctl; /* CS_CTL for frame header */ + __be16 esb_ox_id; /* originator exchange ID */ + __be16 esb_rx_id; /* responder exchange ID */ + __be32 esb_orig_fid; /* fabric ID of originator */ + __be32 esb_resp_fid; /* fabric ID of responder */ + __be32 esb_e_stat; /* status */ + __u8 _esb_resvd[4]; + __u8 esb_service_params[112]; /* TBD */ + __u8 esb_seq_status[8]; /* sequence statuses, 8 bytes each */ +} __attribute__((packed)); + +/* + * Define expected size for ASSERTs. + * See comments on FC_SSB_SIZE. + */ +#define FC_ESB_SIZE (1 + 5*4 + 112 + 8) /* expected size */ + +/* + * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. + */ +#define ESB_ST_RESP (1 << 31) /* responder to exchange */ +#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiative */ +#define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */ +#define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */ +#define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */ + +#define ESB_ST_ERRP_BIT 24 /* LSB for error policy */ +#define ESB_ST_ERRP_MASK (3 << 24) /* mask for error policy */ +#define ESB_ST_ERRP_MULT (0 << 24) /* abort, discard multiple sequences */ +#define ESB_ST_ERRP_SING (1 << 24) /* abort, discard single sequence */ +#define ESB_ST_ERRP_INF (2 << 24) /* process with infinite buffers */ +#define ESB_ST_ERRP_IMM (3 << 24) /* discard mult. with immed. retran. */ + +#define ESB_ST_OX_ID_INVL (1 << 23) /* originator XID invalid */ +#define ESB_ST_RX_ID_INVL (1 << 22) /* responder XID invalid */ +#define ESB_ST_PRI_INUSE (1 << 21) /* priority / preemption in use */ + +#endif /* _FC_FC2_H_ */ diff --git a/kernel/include/scsi/fc/fc_fcoe.h b/kernel/include/scsi/fc/fc_fcoe.h new file mode 100644 index 000000000..d5dcd6062 --- /dev/null +++ b/kernel/include/scsi/fc/fc_fcoe.h @@ -0,0 +1,108 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FCOE_H_ +#define _FC_FCOE_H_ + +/* + * FCoE - Fibre Channel over Ethernet. + * See T11 FC-BB-5 Rev 2.00 (09-056v5.pdf) + */ + +/* + * Default FC_FCOE_OUI / FC-MAP value. + */ +#define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE MAC */ + +/* + * Fabric Login (FLOGI) MAC for non-FIP use. Non-FIP use is deprecated. + */ +#define FC_FCOE_FLOGI_MAC { 0x0e, 0xfc, 0x00, 0xff, 0xff, 0xfe } + +#define FC_FCOE_VER 0 /* version */ + +/* + * Ethernet Addresses based on FC S_ID and D_ID. + * Generated by FC_FCOE_OUI | S_ID/D_ID + */ +#define FC_FCOE_ENCAPS_ID(n) (((u64) FC_FCOE_OUI << 24) | (n)) +#define FC_FCOE_DECAPS_ID(n) ((n) >> 24) + +/* + * FCoE frame header - 14 bytes + * This follows the VLAN header, which includes the ethertype. + */ +struct fcoe_hdr { + __u8 fcoe_ver; /* version field - upper 4 bits */ + __u8 fcoe_resvd[12]; /* reserved - send zero and ignore */ + __u8 fcoe_sof; /* start of frame per RFC 3643 */ +}; + +#define FC_FCOE_DECAPS_VER(hp) ((hp)->fcoe_ver >> 4) +#define FC_FCOE_ENCAPS_VER(hp, ver) ((hp)->fcoe_ver = (ver) << 4) + +/* + * FCoE CRC & EOF - 8 bytes. + */ +struct fcoe_crc_eof { + __le32 fcoe_crc32; /* CRC for FC packet */ + __u8 fcoe_eof; /* EOF from RFC 3643 */ + __u8 fcoe_resvd[3]; /* reserved - send zero and ignore */ +} __attribute__((packed)); + +/* + * Minimum FCoE + FC header length + * 14 bytes FCoE header + 24 byte FC header = 38 bytes + */ +#define FCOE_HEADER_LEN 38 + +/* + * Minimum FCoE frame size + * 14 bytes FCoE header + 24 byte FC header + 8 byte FCoE trailer = 46 bytes + */ +#define FCOE_MIN_FRAME 46 + +/* + * FCoE Link Error Status Block: T11 FC-BB-5 Rev2.0, Clause 7.10. + */ +struct fcoe_fc_els_lesb { + __be32 lesb_link_fail; /* link failure count */ + __be32 lesb_vlink_fail; /* virtual link failure count */ + __be32 lesb_miss_fka; /* missing FIP keep-alive count */ + __be32 lesb_symb_err; /* symbol error during carrier count */ + __be32 lesb_err_block; /* errored block count */ + __be32 lesb_fcs_error; /* frame check sequence error count */ +}; + +/* + * fc_fcoe_set_mac - Store OUI + DID into MAC address field. + * @mac: mac address to be set + * @did: fc dest id to use + */ +static inline void fc_fcoe_set_mac(u8 *mac, u8 *did) +{ + mac[0] = (u8) (FC_FCOE_OUI >> 16); + mac[1] = (u8) (FC_FCOE_OUI >> 8); + mac[2] = (u8) FC_FCOE_OUI; + mac[3] = did[0]; + mac[4] = did[1]; + mac[5] = did[2]; +} + +#endif /* _FC_FCOE_H_ */ diff --git a/kernel/include/scsi/fc/fc_fcp.h b/kernel/include/scsi/fc/fc_fcp.h new file mode 100644 index 000000000..9c8702942 --- /dev/null +++ b/kernel/include/scsi/fc/fc_fcp.h @@ -0,0 +1,216 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FCP_H_ +#define _FC_FCP_H_ + +#include <scsi/scsi.h> + +/* + * Fibre Channel Protocol for SCSI. + * From T10 FCP-3, T10 project 1560-D Rev 4, Sept. 13, 2005. + */ + +/* + * fc/fs.h defines FC_TYPE_FCP. + */ + +/* + * Service parameter page parameters (word 3 bits) for Process Login. + */ +#define FCP_SPPF_TASK_RETRY_ID 0x0200 /* task retry ID requested */ +#define FCP_SPPF_RETRY 0x0100 /* retry supported */ +#define FCP_SPPF_CONF_COMPL 0x0080 /* confirmed completion allowed */ +#define FCP_SPPF_OVLY_ALLOW 0x0040 /* data overlay allowed */ +#define FCP_SPPF_INIT_FCN 0x0020 /* initiator function */ +#define FCP_SPPF_TARG_FCN 0x0010 /* target function */ +#define FCP_SPPF_RD_XRDY_DIS 0x0002 /* disable XFER_RDY for reads */ +#define FCP_SPPF_WR_XRDY_DIS 0x0001 /* disable XFER_RDY for writes */ + +/* + * FCP_CMND IU Payload. + */ +struct fcp_cmnd { + struct scsi_lun fc_lun; /* logical unit number */ + __u8 fc_cmdref; /* command reference number */ + __u8 fc_pri_ta; /* priority and task attribute */ + __u8 fc_tm_flags; /* task management flags */ + __u8 fc_flags; /* additional len & flags */ + __u8 fc_cdb[16]; /* base CDB */ + __be32 fc_dl; /* data length (must follow fc_cdb) */ +}; + +#define FCP_CMND_LEN 32 /* expected length of structure */ + +struct fcp_cmnd32 { + struct scsi_lun fc_lun; /* logical unit number */ + __u8 fc_cmdref; /* command reference number */ + __u8 fc_pri_ta; /* priority and task attribute */ + __u8 fc_tm_flags; /* task management flags */ + __u8 fc_flags; /* additional len & flags */ + __u8 fc_cdb[32]; /* base CDB */ + __be32 fc_dl; /* data length (must follow fc_cdb) */ +}; + +#define FCP_CMND32_LEN 48 /* expected length of structure */ +#define FCP_CMND32_ADD_LEN (16 / 4) /* Additional cdb length */ + +/* + * fc_pri_ta. + */ +#define FCP_PTA_SIMPLE 0 /* simple task attribute */ +#define FCP_PTA_HEADQ 1 /* head of queue task attribute */ +#define FCP_PTA_ORDERED 2 /* ordered task attribute */ +#define FCP_PTA_ACA 4 /* auto. contingent allegiance */ +#define FCP_PTA_MASK 7 /* mask for task attribute field */ +#define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */ +#define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */ + +/* + * fc_tm_flags - task management flags field. + */ +#define FCP_TMF_CLR_ACA 0x40 /* clear ACA condition */ +#define FCP_TMF_TGT_RESET 0x20 /* target reset task management, + deprecated as of FCP-3 */ +#define FCP_TMF_LUN_RESET 0x10 /* logical unit reset task management */ +#define FCP_TMF_CLR_TASK_SET 0x04 /* clear task set */ +#define FCP_TMF_ABT_TASK_SET 0x02 /* abort task set */ + +/* + * fc_flags. + * Bits 7:2 are the additional FCP_CDB length / 4. + */ +#define FCP_CFL_LEN_MASK 0xfc /* mask for additional length */ +#define FCP_CFL_LEN_SHIFT 2 /* shift bits for additional length */ +#define FCP_CFL_RDDATA 0x02 /* read data */ +#define FCP_CFL_WRDATA 0x01 /* write data */ + +/* + * FCP_TXRDY IU - transfer ready payload. + */ +struct fcp_txrdy { + __be32 ft_data_ro; /* data relative offset */ + __be32 ft_burst_len; /* burst length */ + __u8 _ft_resvd[4]; /* reserved */ +}; + +#define FCP_TXRDY_LEN 12 /* expected length of structure */ + +/* + * FCP_RESP IU - response payload. + * + * The response payload comes in three parts: the flags/status, the + * sense/response lengths and the sense data/response info section. + * + * From FCP3r04, note 6 of section 9.5.13: + * + * Some early implementations presented the FCP_RSP IU without the FCP_RESID, + * FCP_SNS_LEN, and FCP_RSP_LEN fields if the FCP_RESID_UNDER, FCP_RESID_OVER, + * FCP_SNS_LEN_VALID, and FCP_RSP_LEN_VALID bits were all set to zero. This + * non-standard behavior should be tolerated. + * + * All response frames will always contain the fcp_resp template. Some + * will also include the fcp_resp_len template. + * + * From Table 23, the FCP_RSP_INFO can either be 4 bytes or 8 bytes, both + * are valid length. + */ +struct fcp_resp { + __u8 _fr_resvd[8]; /* reserved */ + __be16 fr_retry_delay; /* retry delay timer */ + __u8 fr_flags; /* flags */ + __u8 fr_status; /* SCSI status code */ +}; + +#define FCP_RESP_LEN 12 /* expected length of structure */ + +struct fcp_resp_ext { + __be32 fr_resid; /* Residual value */ + __be32 fr_sns_len; /* SCSI Sense length */ + __be32 fr_rsp_len; /* Response Info length */ + + /* + * Optionally followed by RSP info and/or SNS info and/or + * bidirectional read residual length, if any. + */ +}; + +#define FCP_RESP_EXT_LEN 12 /* expected length of the structure */ + +struct fcp_resp_rsp_info { + __u8 _fr_resvd[3]; /* reserved */ + __u8 rsp_code; /* Response Info Code */ + __u8 _fr_resvd2[4]; /* reserved */ +}; + +#define FCP_RESP_RSP_INFO_LEN4 4 /* without reserved field */ +#define FCP_RESP_RSP_INFO_LEN8 8 /* with reserved field */ + +struct fcp_resp_with_ext { + struct fcp_resp resp; + struct fcp_resp_ext ext; +}; + +#define FCP_RESP_WITH_EXT (FCP_RESP_LEN + FCP_RESP_EXT_LEN) + +/* + * fr_flags. + */ +#define FCP_BIDI_RSP 0x80 /* bidirectional read response */ +#define FCP_BIDI_READ_UNDER 0x40 /* bidir. read less than requested */ +#define FCP_BIDI_READ_OVER 0x20 /* DL insufficient for full transfer */ +#define FCP_CONF_REQ 0x10 /* confirmation requested */ +#define FCP_RESID_UNDER 0x08 /* transfer shorter than expected */ +#define FCP_RESID_OVER 0x04 /* DL insufficient for full transfer */ +#define FCP_SNS_LEN_VAL 0x02 /* SNS_LEN field is valid */ +#define FCP_RSP_LEN_VAL 0x01 /* RSP_LEN field is valid */ + +/* + * rsp_codes + */ +enum fcp_resp_rsp_codes { + FCP_TMF_CMPL = 0, + FCP_DATA_LEN_INVALID = 1, + FCP_CMND_FIELDS_INVALID = 2, + FCP_DATA_PARAM_MISMATCH = 3, + FCP_TMF_REJECTED = 4, + FCP_TMF_FAILED = 5, + FCP_TMF_INVALID_LUN = 9, +}; + +/* + * FCP SRR Link Service request - Sequence Retransmission Request. + */ +struct fcp_srr { + __u8 srr_op; /* opcode ELS_SRR */ + __u8 srr_resvd[3]; /* opcode / reserved - must be zero */ + __be16 srr_ox_id; /* OX_ID of failed command */ + __be16 srr_rx_id; /* RX_ID of failed command */ + __be32 srr_rel_off; /* relative offset */ + __u8 srr_r_ctl; /* r_ctl for the information unit */ + __u8 srr_resvd2[3]; /* reserved */ +}; + +/* + * Feature bits in name server FC-4 Features object. + */ +#define FCP_FEAT_TARG (1 << 0) /* target function supported */ +#define FCP_FEAT_INIT (1 << 1) /* initiator function supported */ + +#endif /* _FC_FCP_H_ */ diff --git a/kernel/include/scsi/fc/fc_fip.h b/kernel/include/scsi/fc/fc_fip.h new file mode 100644 index 000000000..ae25d4ab2 --- /dev/null +++ b/kernel/include/scsi/fc/fc_fip.h @@ -0,0 +1,280 @@ +/* + * Copyright 2008 Cisco Systems, Inc. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _FC_FIP_H_ +#define _FC_FIP_H_ + +#include <scsi/fc/fc_ns.h> + +/* + * This version is based on: + * http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf + * and T11 FC-BB-6 10-019v4.pdf (June 2010 VN2VN proposal) + */ + +#define FIP_DEF_PRI 128 /* default selection priority */ +#define FIP_DEF_FC_MAP 0x0efc00 /* default FCoE MAP (MAC OUI) value */ +#define FIP_DEF_FKA 8000 /* default FCF keep-alive/advert period (mS) */ +#define FIP_VN_KA_PERIOD 90000 /* required VN_port keep-alive period (mS) */ +#define FIP_FCF_FUZZ 100 /* random time added by FCF (mS) */ + +/* + * VN2VN proposed-standard values. + */ +#define FIP_VN_FC_MAP 0x0efd00 /* MAC OUI for VN2VN use */ +#define FIP_VN_PROBE_WAIT 100 /* interval between VN2VN probes (ms) */ +#define FIP_VN_ANN_WAIT 400 /* interval between VN2VN announcements (ms) */ +#define FIP_VN_RLIM_INT 10000 /* interval between probes when rate limited */ +#define FIP_VN_RLIM_COUNT 10 /* number of probes before rate limiting */ +#define FIP_VN_BEACON_INT 8000 /* interval between VN2VN beacons */ +#define FIP_VN_BEACON_FUZZ 100 /* random time to add to beacon period (ms) */ + +/* + * Multicast MAC addresses. T11-adopted. + */ +#define FIP_ALL_FCOE_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 0 }) +#define FIP_ALL_ENODE_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 1 }) +#define FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 }) +#define FIP_ALL_VN2VN_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 4 }) +#define FIP_ALL_P2P_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 5 }) + +#define FIP_VER 1 /* version for fip_header */ + +struct fip_header { + __u8 fip_ver; /* upper 4 bits are the version */ + __u8 fip_resv1; /* reserved */ + __be16 fip_op; /* operation code */ + __u8 fip_resv2; /* reserved */ + __u8 fip_subcode; /* lower 4 bits are sub-code */ + __be16 fip_dl_len; /* length of descriptors in words */ + __be16 fip_flags; /* header flags */ +} __attribute__((packed)); + +#define FIP_VER_SHIFT 4 +#define FIP_VER_ENCAPS(v) ((v) << FIP_VER_SHIFT) +#define FIP_VER_DECAPS(v) ((v) >> FIP_VER_SHIFT) +#define FIP_BPW 4 /* bytes per word for lengths */ + +/* + * fip_op. + */ +enum fip_opcode { + FIP_OP_DISC = 1, /* discovery, advertisement, etc. */ + FIP_OP_LS = 2, /* Link Service request or reply */ + FIP_OP_CTRL = 3, /* Keep Alive / Link Reset */ + FIP_OP_VLAN = 4, /* VLAN discovery */ + FIP_OP_VN2VN = 5, /* VN2VN operation */ + FIP_OP_VENDOR_MIN = 0xfff8, /* min vendor-specific opcode */ + FIP_OP_VENDOR_MAX = 0xfffe, /* max vendor-specific opcode */ +}; + +/* + * Subcodes for FIP_OP_DISC. + */ +enum fip_disc_subcode { + FIP_SC_SOL = 1, /* solicitation */ + FIP_SC_ADV = 2, /* advertisement */ +}; + +/* + * Subcodes for FIP_OP_LS. + */ +enum fip_trans_subcode { + FIP_SC_REQ = 1, /* request */ + FIP_SC_REP = 2, /* reply */ +}; + +/* + * Subcodes for FIP_OP_RESET. + */ +enum fip_reset_subcode { + FIP_SC_KEEP_ALIVE = 1, /* keep-alive from VN_Port */ + FIP_SC_CLR_VLINK = 2, /* clear virtual link from VF_Port */ +}; + +/* + * Subcodes for FIP_OP_VLAN. + */ +enum fip_vlan_subcode { + FIP_SC_VL_REQ = 1, /* request */ + FIP_SC_VL_REP = 2, /* reply */ +}; + +/* + * Subcodes for FIP_OP_VN2VN. + */ +enum fip_vn2vn_subcode { + FIP_SC_VN_PROBE_REQ = 1, /* probe request */ + FIP_SC_VN_PROBE_REP = 2, /* probe reply */ + FIP_SC_VN_CLAIM_NOTIFY = 3, /* claim notification */ + FIP_SC_VN_CLAIM_REP = 4, /* claim response */ + FIP_SC_VN_BEACON = 5, /* beacon */ +}; + +/* + * flags in header fip_flags. + */ +enum fip_flag { + FIP_FL_FPMA = 0x8000, /* supports FPMA fabric-provided MACs */ + FIP_FL_SPMA = 0x4000, /* supports SPMA server-provided MACs */ + FIP_FL_REC_OR_P2P = 0x0008, /* configured addr or point-to-point */ + FIP_FL_AVAIL = 0x0004, /* available for FLOGI/ELP */ + FIP_FL_SOL = 0x0002, /* this is a solicited message */ + FIP_FL_FPORT = 0x0001, /* sent from an F port */ +}; + +/* + * Common descriptor header format. + */ +struct fip_desc { + __u8 fip_dtype; /* type - see below */ + __u8 fip_dlen; /* length - in 32-bit words */ +}; + +enum fip_desc_type { + FIP_DT_PRI = 1, /* priority for forwarder selection */ + FIP_DT_MAC = 2, /* MAC address */ + FIP_DT_MAP_OUI = 3, /* FC-MAP OUI */ + FIP_DT_NAME = 4, /* switch name or node name */ + FIP_DT_FAB = 5, /* fabric descriptor */ + FIP_DT_FCOE_SIZE = 6, /* max FCoE frame size */ + FIP_DT_FLOGI = 7, /* FLOGI request or response */ + FIP_DT_FDISC = 8, /* FDISC request or response */ + FIP_DT_LOGO = 9, /* LOGO request or response */ + FIP_DT_ELP = 10, /* ELP request or response */ + FIP_DT_VN_ID = 11, /* VN_Node Identifier */ + FIP_DT_FKA = 12, /* advertisement keep-alive period */ + FIP_DT_VENDOR = 13, /* vendor ID */ + FIP_DT_VLAN = 14, /* vlan number */ + FIP_DT_FC4F = 15, /* FC-4 features */ + FIP_DT_LIMIT, /* max defined desc_type + 1 */ + FIP_DT_VENDOR_BASE = 128, /* first vendor-specific desc_type */ +}; + +/* + * FIP_DT_PRI - priority descriptor. + */ +struct fip_pri_desc { + struct fip_desc fd_desc; + __u8 fd_resvd; + __u8 fd_pri; /* FCF priority: higher is better */ +} __attribute__((packed)); + +/* + * FIP_DT_MAC - MAC address descriptor. + */ +struct fip_mac_desc { + struct fip_desc fd_desc; + __u8 fd_mac[ETH_ALEN]; +} __attribute__((packed)); + +/* + * FIP_DT_MAP - descriptor. + */ +struct fip_map_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[3]; + __u8 fd_map[3]; +} __attribute__((packed)); + +/* + * FIP_DT_NAME descriptor. + */ +struct fip_wwn_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + __be64 fd_wwn; /* 64-bit WWN, unaligned */ +} __attribute__((packed)); + +/* + * FIP_DT_FAB descriptor. + */ +struct fip_fab_desc { + struct fip_desc fd_desc; + __be16 fd_vfid; /* virtual fabric ID */ + __u8 fd_resvd; + __u8 fd_map[3]; /* FC-MAP value */ + __be64 fd_wwn; /* fabric name, unaligned */ +} __attribute__((packed)); + +/* + * FIP_DT_FCOE_SIZE descriptor. + */ +struct fip_size_desc { + struct fip_desc fd_desc; + __be16 fd_size; +} __attribute__((packed)); + +/* + * Descriptor that encapsulates an ELS or ILS frame. + * The encapsulated frame immediately follows this header, without + * SOF, EOF, or CRC. + */ +struct fip_encaps { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; +} __attribute__((packed)); + +/* + * FIP_DT_VN_ID - VN_Node Identifier descriptor. + */ +struct fip_vn_desc { + struct fip_desc fd_desc; + __u8 fd_mac[ETH_ALEN]; + __u8 fd_resvd; + __u8 fd_fc_id[3]; + __be64 fd_wwpn; /* port name, unaligned */ +} __attribute__((packed)); + +/* + * FIP_DT_FKA - Advertisement keep-alive period. + */ +struct fip_fka_desc { + struct fip_desc fd_desc; + __u8 fd_resvd; + __u8 fd_flags; /* bit0 is fka disable flag */ + __be32 fd_fka_period; /* adv./keep-alive period in mS */ +} __attribute__((packed)); + +/* + * flags for fip_fka_desc.fd_flags + */ +enum fip_fka_flags { + FIP_FKA_ADV_D = 0x01, /* no need for FKA from ENode */ +}; + +/* FIP_DT_FKA flags */ + +/* + * FIP_DT_FC4F - FC-4 features. + */ +struct fip_fc4_feat { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + struct fc_ns_fts fd_fts; + struct fc_ns_ff fd_ff; +} __attribute__((packed)); + +/* + * FIP_DT_VENDOR descriptor. + */ +struct fip_vendor_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + __u8 fd_vendor_id[8]; +} __attribute__((packed)); + +#endif /* _FC_FIP_H_ */ diff --git a/kernel/include/scsi/fc/fc_ms.h b/kernel/include/scsi/fc/fc_ms.h new file mode 100644 index 000000000..f52b921b5 --- /dev/null +++ b/kernel/include/scsi/fc/fc_ms.h @@ -0,0 +1,213 @@ +/* * Copyright(c) 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_MS_H_ +#define _FC_MS_H_ + +#include <linux/types.h> + +/* + * Fibre Channel Services - Management Service (MS) + * From T11.org FC-GS-4 Rev 7.91 February 4, 2004 + */ + +/* + * Fabric Device Management Interface + */ + +/* + * Common-transport sub-type for FDMI + */ +#define FC_FDMI_SUBTYPE 0x10 /* fs_ct_hdr.ct_fs_subtype */ + +/* + * Management server FDMI Requests. + */ +enum fc_fdmi_req { + FC_FDMI_GRHL = 0x0100, /* Get Registered HBA List */ + FC_FDMI_GHAT = 0x0101, /* Get HBA Attributes */ + FC_FDMI_GRPL = 0x0102, /* Get Registered Port List */ + FC_FDMI_GPAT = 0x0110, /* Get Port Attributes */ + FC_FDMI_RHBA = 0x0200, /* Register HBA */ + FC_FDMI_RHAT = 0x0201, /* Register HBA Attributes */ + FC_FDMI_RPRT = 0x0210, /* Register Port */ + FC_FDMI_RPA = 0x0211, /* Register Port Attributes */ + FC_FDMI_DHBA = 0x0300, /* Deregister HBA */ + FC_FDMI_DHAT = 0x0301, /* Deregister HBA Attributes */ + FC_FDMI_DPRT = 0x0310, /* Deregister Port */ + FC_FDMI_DPA = 0x0311, /* Deregister Port Attributes */ +}; + +/* + * HBA Attribute Entry Type + */ +enum fc_fdmi_hba_attr_type { + FC_FDMI_HBA_ATTR_NODENAME = 0x0001, + FC_FDMI_HBA_ATTR_MANUFACTURER = 0x0002, + FC_FDMI_HBA_ATTR_SERIALNUMBER = 0x0003, + FC_FDMI_HBA_ATTR_MODEL = 0x0004, + FC_FDMI_HBA_ATTR_MODELDESCRIPTION = 0x0005, + FC_FDMI_HBA_ATTR_HARDWAREVERSION = 0x0006, + FC_FDMI_HBA_ATTR_DRIVERVERSION = 0x0007, + FC_FDMI_HBA_ATTR_OPTIONROMVERSION = 0x0008, + FC_FDMI_HBA_ATTR_FIRMWAREVERSION = 0x0009, + FC_FDMI_HBA_ATTR_OSNAMEVERSION = 0x000A, + FC_FDMI_HBA_ATTR_MAXCTPAYLOAD = 0x000B, +}; + +/* + * HBA Attribute Length + */ +#define FC_FDMI_HBA_ATTR_NODENAME_LEN 8 +#define FC_FDMI_HBA_ATTR_MANUFACTURER_LEN 64 +#define FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN 64 +#define FC_FDMI_HBA_ATTR_MODEL_LEN 256 +#define FC_FDMI_HBA_ATTR_MODELDESCR_LEN 256 +#define FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN 256 +#define FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN 256 +#define FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN 256 +#define FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN 256 +#define FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN 256 +#define FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN 4 + +/* + * Port Attribute Type + */ +enum fc_fdmi_port_attr_type { + FC_FDMI_PORT_ATTR_FC4TYPES = 0x0001, + FC_FDMI_PORT_ATTR_SUPPORTEDSPEED = 0x0002, + FC_FDMI_PORT_ATTR_CURRENTPORTSPEED = 0x0003, + FC_FDMI_PORT_ATTR_MAXFRAMESIZE = 0x0004, + FC_FDMI_PORT_ATTR_OSDEVICENAME = 0x0005, + FC_FDMI_PORT_ATTR_HOSTNAME = 0x0006, +}; + +/* + * Port Attribute Length + */ +#define FC_FDMI_PORT_ATTR_FC4TYPES_LEN 32 +#define FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN 4 +#define FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN 4 +#define FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN 4 +#define FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN 256 +#define FC_FDMI_PORT_ATTR_HOSTNAME_LEN 256 + +/* + * HBA Attribute ID + */ +struct fc_fdmi_hba_identifier { + __be64 id; +}; + +/* + * Port Name + */ +struct fc_fdmi_port_name { + __be64 portname; +}; + +/* + * Attribute Entry Block for HBA/Port Attributes + */ +#define FC_FDMI_ATTR_ENTRY_HEADER_LEN 4 +struct fc_fdmi_attr_entry { + __be16 type; + __be16 len; + __u8 value[1]; +} __attribute__((__packed__)); + +/* + * Common for HBA/Port Attributes + */ +struct fs_fdmi_attrs { + __be32 numattrs; + struct fc_fdmi_attr_entry attr[1]; +} __attribute__((__packed__)); + +/* + * Registered Port List + */ +struct fc_fdmi_rpl { + __be32 numport; + struct fc_fdmi_port_name port[1]; +} __attribute__((__packed__)); + +/* + * Register HBA (RHBA) + */ +struct fc_fdmi_rhba { + struct fc_fdmi_hba_identifier hbaid; + struct fc_fdmi_rpl port; + struct fs_fdmi_attrs hba_attrs; +} __attribute__((__packed__)); + +/* + * Register HBA Attributes (RHAT) + */ +struct fc_fdmi_rhat { + struct fc_fdmi_hba_identifier hbaid; + struct fs_fdmi_attrs hba_attrs; +} __attribute__((__packed__)); + +/* + * Register Port (RPRT) + */ +struct fc_fdmi_rprt { + struct fc_fdmi_hba_identifier hbaid; + struct fc_fdmi_port_name port; + struct fs_fdmi_attrs hba_attrs; +} __attribute__((__packed__)); + +/* + * Register Port Attributes (RPA) + */ +struct fc_fdmi_rpa { + struct fc_fdmi_port_name port; + struct fs_fdmi_attrs hba_attrs; +} __attribute__((__packed__)); + +/* + * Deregister Port (DPRT) + */ +struct fc_fdmi_dprt { + struct fc_fdmi_port_name port; +} __attribute__((__packed__)); + +/* + * Deregister Port Attributes (DPA) + */ +struct fc_fdmi_dpa { + struct fc_fdmi_port_name port; + struct fs_fdmi_attrs hba_attrs; +} __attribute__((__packed__)); + +/* + * Deregister HBA Attributes (DHAT) + */ +struct fc_fdmi_dhat { + struct fc_fdmi_hba_identifier hbaid; +} __attribute__((__packed__)); + +/* + * Deregister HBA (DHBA) + */ +struct fc_fdmi_dhba { + struct fc_fdmi_hba_identifier hbaid; +} __attribute__((__packed__)); + +#endif /* _FC_MS_H_ */ |