LXR linux/include/scsi/fc/fc

   1/*
   2 * Copyright(c) 2007 Intel Corporation. All rights reserved.
   3 *
   4 * This program is free software; you can redistribute it and/or modify it
   5 * under the terms and conditions of the GNU General Public License,
   6 * version 2, as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope it will be useful, but WITHOUT
   9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11 * more details.
  12 *
  13 * You should have received a copy of the GNU General Public License along with
  14 * this program; if not, write to the Free Software Foundation, Inc.,
  15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  16 *
  17 * Maintained at www.Open-FCoE.org
  18 */
  19
  20#ifndef _FC_GS_H_
  21#define _FC_GS_H_
  22
  23#include <linux/types.h>
  24
  25/*
  26 * Fibre Channel Services - Common Transport.
  27 * From T11.org FC-GS-2 Rev 5.3 November 1998.
  28 */
  29
  30struct fc_ct_hdr {
  31        __u8            ct_rev;         /* revision */
  32        __u8            ct_in_id[3];    /* N_Port ID of original requestor */
  33        __u8            ct_fs_type;     /* type of fibre channel service */
  34        __u8            ct_fs_subtype;  /* subtype */
  35        __u8            ct_options;
  36        __u8            _ct_resvd1;
  37        __be16          ct_cmd;         /* command / response code */
  38        __be16          ct_mr_size;     /* maximum / residual size */
  39        __u8            _ct_resvd2;
  40        __u8            ct_reason;      /* reject reason */
  41        __u8            ct_explan;      /* reason code explanation */
  42        __u8            ct_vendor;      /* vendor unique data */
  43};
  44
  45#define FC_CT_HDR_LEN   16      /* expected sizeof (struct fc_ct_hdr) */
  46
  47enum fc_ct_rev {
  48        FC_CT_REV = 1           /* common transport revision */
  49};
  50
  51/*
  52 * ct_fs_type values.
  53 */
  54enum fc_ct_fs_type {
  55        FC_FST_ALIAS =  0xf8,   /* alias service */
  56        FC_FST_MGMT =   0xfa,   /* management service */
  57        FC_FST_TIME =   0xfb,   /* time service */
  58        FC_FST_DIR =    0xfc,   /* directory service */
  59};
  60
  61/*
  62 * ct_cmd: Command / response codes
  63 */
  64enum fc_ct_cmd {
  65        FC_FS_RJT =     0x8001, /* reject */
  66        FC_FS_ACC =     0x8002, /* accept */
  67};
  68
  69/*
  70 * FS_RJT reason codes.
  71 */
  72enum fc_ct_reason {
  73        FC_FS_RJT_CMD =         0x01,   /* invalid command code */
  74        FC_FS_RJT_VER =         0x02,   /* invalid version level */
  75        FC_FS_RJT_LOG =         0x03,   /* logical error */
  76        FC_FS_RJT_IUSIZ =       0x04,   /* invalid IU size */
  77        FC_FS_RJT_BSY =         0x05,   /* logical busy */
  78        FC_FS_RJT_PROTO =       0x07,   /* protocol error */
  79        FC_FS_RJT_UNABL =       0x09,   /* unable to perform command request */
  80        FC_FS_RJT_UNSUP =       0x0b,   /* command not supported */
  81};
  82
  83/*
  84 * FS_RJT reason code explanations.
  85 */
  86enum fc_ct_explan {
  87        FC_FS_EXP_NONE =        0x00,   /* no additional explanation */
  88        FC_FS_EXP_PID =         0x01,   /* port ID not registered */
  89        FC_FS_EXP_PNAM =        0x02,   /* port name not registered */
  90        FC_FS_EXP_NNAM =        0x03,   /* node name not registered */
  91        FC_FS_EXP_COS =         0x04,   /* class of service not registered */
  92        FC_FS_EXP_FTNR =        0x07,   /* FC-4 types not registered */
  93        /* definitions not complete */
  94};
  95
  96#endif /* _FC_GS_H_ */
  97