include/scsi/fc/fc_gs.h

   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 /*
  24  * Fibre Channel Services - Common Transport.
  25  * From T11.org FC-GS-2 Rev 5.3 November 1998.
  26  */
  27
  28 struct fc_ct_hdr {
  29         __u8            ct_rev;         /* revision */
  30         __u8            ct_in_id[3];    /* N_Port ID of original requestor */
  31         __u8            ct_fs_type;     /* type of fibre channel service */
  32         __u8            ct_fs_subtype;  /* subtype */
  33         __u8            ct_options;
  34         __u8            _ct_resvd1;
  35         __be16          ct_cmd;         /* command / response code */
  36         __be16          ct_mr_size;     /* maximum / residual size */
  37         __u8            _ct_resvd2;
  38         __u8            ct_reason;      /* reject reason */
  39         __u8            ct_explan;      /* reason code explanation */
  40         __u8            ct_vendor;      /* vendor unique data */
  41 };
  42
  43 #define FC_CT_HDR_LEN   16      /* expected sizeof (struct fc_ct_hdr) */
  44
  45 enum fc_ct_rev {
  46         FC_CT_REV = 1           /* common transport revision */
  47 };
  48
  49 /*
  50  * ct_fs_type values.
  51  */
  52 enum fc_ct_fs_type {
  53         FC_FST_ALIAS =  0xf8,   /* alias service */
  54         FC_FST_MGMT =   0xfa,   /* management service */
  55         FC_FST_TIME =   0xfb,   /* time service */
  56         FC_FST_DIR =    0xfc,   /* directory service */
  57 };
  58
  59 /*
  60  * ct_cmd: Command / response codes
  61  */
  62 enum fc_ct_cmd {
  63         FC_FS_RJT =     0x8001, /* reject */
  64         FC_FS_ACC =     0x8002, /* accept */
  65 };
  66
  67 /*
  68  * FS_RJT reason codes.
  69  */
  70 enum fc_ct_reason {
  71         FC_FS_RJT_CMD =         0x01,   /* invalid command code */
  72         FC_FS_RJT_VER =         0x02,   /* invalid version level */
  73         FC_FS_RJT_LOG =         0x03,   /* logical error */
  74         FC_FS_RJT_IUSIZ =       0x04,   /* invalid IU size */
  75         FC_FS_RJT_BSY =         0x05,   /* logical busy */
  76         FC_FS_RJT_PROTO =       0x07,   /* protocol error */
  77         FC_FS_RJT_UNABL =       0x09,   /* unable to perform command request */
  78         FC_FS_RJT_UNSUP =       0x0b,   /* command not supported */
  79 };
  80
  81 /*
  82  * FS_RJT reason code explanations.
  83  */
  84 enum fc_ct_explan {
  85         FC_FS_EXP_NONE =        0x00,   /* no additional explanation */
  86         FC_FS_EXP_PID =         0x01,   /* port ID not registered */
  87         FC_FS_EXP_PNAM =        0x02,   /* port name not registered */
  88         FC_FS_EXP_NNAM =        0x03,   /* node name not registered */
  89         FC_FS_EXP_COS =         0x04,   /* class of service not registered */
  90         FC_FS_EXP_FTNR =        0x07,   /* FC-4 types not registered */
  91         /* definitions not complete */
  92 };
  93
  94 #endif /* _FC_GS_H_ */