include/uapi/scsi/fc/fc_gs.h

   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
  18 struct 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
  35 enum fc_ct_rev {
  36         FC_CT_REV = 1           /* common transport revision */
  37 };
  38
  39 /*
  40  * ct_fs_type values.
  41  */
  42 enum 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  */
  52 enum fc_ct_cmd {
  53         FC_FS_RJT =     0x8001, /* reject */
  54         FC_FS_ACC =     0x8002, /* accept */
  55 };
  56
  57 /*
  58  * FS_RJT reason codes.
  59  */
  60 enum 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  */
  74 enum 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_ */