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 #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
  30 struct 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
  47 enum fc_ct_rev {
  48         FC_CT_REV = 1           /* common transport revision */
  49 };
  50
  51 /*
  52  * ct_fs_type values.
  53  */
  54 enum 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  */
  64 enum fc_ct_cmd {
  65         FC_FS_RJT =     0x8001, /* reject */
  66         FC_FS_ACC =     0x8002, /* accept */
  67 };
  68
  69 /*
  70  * FS_RJT reason codes.
  71  */
  72 enum 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  */
  86 enum 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_ */