LXR linux/include/uapi/scsi/fc/fc

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * Copyright(c) 2007 Intel Corporation. All rights reserved.
   4 *
   5 * Maintained at www.Open-FCoE.org
   6 */
   7
   8#ifndef _FC_GS_H_
   9#define _FC_GS_H_
  10
  11#include <linux/types.h>
  12
  13/*
  14 * Fibre Channel Services - Common Transport.
  15 * From T11.org FC-GS-2 Rev 5.3 November 1998.
  16 */
  17
  18struct fc_ct_hdr {
  19        __u8            ct_rev;         /* revision */
  20        __u8            ct_in_id[3];    /* N_Port ID of original requestor */
  21        __u8            ct_fs_type;     /* type of fibre channel service */
  22        __u8            ct_fs_subtype;  /* subtype */
  23        __u8            ct_options;
  24        __u8            _ct_resvd1;
  25        __be16          ct_cmd;         /* command / response code */
  26        __be16          ct_mr_size;     /* maximum / residual size */
  27        __u8            _ct_resvd2;
  28        __u8            ct_reason;      /* reject reason */
  29        __u8            ct_explan;      /* reason code explanation */
  30        __u8            ct_vendor;      /* vendor unique data */
  31};
  32
  33#define FC_CT_HDR_LEN   16      /* expected sizeof (struct fc_ct_hdr) */
  34
  35enum fc_ct_rev {
  36        FC_CT_REV = 1           /* common transport revision */
  37};
  38
  39/*
  40 * ct_fs_type values.
  41 */
  42enum fc_ct_fs_type {
  43        FC_FST_ALIAS =  0xf8,   /* alias service */
  44        FC_FST_MGMT =   0xfa,   /* management service */
  45        FC_FST_TIME =   0xfb,   /* time service */
  46        FC_FST_DIR =    0xfc,   /* directory service */
  47};
  48
  49/*
  50 * ct_cmd: Command / response codes
  51 */
  52enum fc_ct_cmd {
  53        FC_FS_RJT =     0x8001, /* reject */
  54        FC_FS_ACC =     0x8002, /* accept */
  55};
  56
  57/*
  58 * FS_RJT reason codes.
  59 */
  60enum fc_ct_reason {
  61        FC_FS_RJT_CMD =         0x01,   /* invalid command code */
  62        FC_FS_RJT_VER =         0x02,   /* invalid version level */
  63        FC_FS_RJT_LOG =         0x03,   /* logical error */
  64        FC_FS_RJT_IUSIZ =       0x04,   /* invalid IU size */
  65        FC_FS_RJT_BSY =         0x05,   /* logical busy */
  66        FC_FS_RJT_PROTO =       0x07,   /* protocol error */
  67        FC_FS_RJT_UNABL =       0x09,   /* unable to perform command request */
  68        FC_FS_RJT_UNSUP =       0x0b,   /* command not supported */
  69};
  70
  71/*
  72 * FS_RJT reason code explanations.
  73 */
  74enum fc_ct_explan {
  75        FC_FS_EXP_NONE =        0x00,   /* no additional explanation */
  76        FC_FS_EXP_PID =         0x01,   /* port ID not registered */
  77        FC_FS_EXP_PNAM =        0x02,   /* port name not registered */
  78        FC_FS_EXP_NNAM =        0x03,   /* node name not registered */
  79        FC_FS_EXP_COS =         0x04,   /* class of service not registered */
  80        FC_FS_EXP_FTNR =        0x07,   /* FC-4 types not registered */
  81        /* definitions not complete */
  82};
  83
  84#endif /* _FC_GS_H_ */
  85