scsi/fc/fc_gs.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 /*
0003  * Copyright(c) 2007 Intel Corporation. All rights reserved.
0004  *
0005  * Maintained at www.Open-FCoE.org
0006  */
0007
0008 #ifndef _FC_GS_H_
0009 #define _FC_GS_H_
0010
0011 #include <linux/types.h>
0012
0013 /*
0014  * Fibre Channel Services - Common Transport.
0015  * From T11.org FC-GS-2 Rev 5.3 November 1998.
0016  */
0017
0018 struct fc_ct_hdr {
0019     __u8        ct_rev;     /* revision */
0020     __u8        ct_in_id[3];    /* N_Port ID of original requestor */
0021     __u8        ct_fs_type; /* type of fibre channel service */
0022     __u8        ct_fs_subtype;  /* subtype */
0023     __u8        ct_options;
0024     __u8        _ct_resvd1;
0025     __be16      ct_cmd;     /* command / response code */
0026     __be16      ct_mr_size; /* maximum / residual size */
0027     __u8        _ct_resvd2;
0028     __u8        ct_reason;  /* reject reason */
0029     __u8        ct_explan;  /* reason code explanation */
0030     __u8        ct_vendor;  /* vendor unique data */
0031 };
0032
0033 #define FC_CT_HDR_LEN   16  /* expected sizeof (struct fc_ct_hdr) */
0034
0035 enum fc_ct_rev {
0036     FC_CT_REV = 1       /* common transport revision */
0037 };
0038
0039 /*
0040  * ct_fs_type values.
0041  */
0042 enum fc_ct_fs_type {
0043     FC_FST_ALIAS =  0xf8,   /* alias service */
0044     FC_FST_MGMT =   0xfa,   /* management service */
0045     FC_FST_TIME =   0xfb,   /* time service */
0046     FC_FST_DIR =    0xfc,   /* directory service */
0047 };
0048
0049 /*
0050  * ct_cmd: Command / response codes
0051  */
0052 enum fc_ct_cmd {
0053     FC_FS_RJT = 0x8001, /* reject */
0054     FC_FS_ACC = 0x8002, /* accept */
0055 };
0056
0057 /*
0058  * FS_RJT reason codes.
0059  */
0060 enum fc_ct_reason {
0061     FC_FS_RJT_CMD =     0x01,   /* invalid command code */
0062     FC_FS_RJT_VER =     0x02,   /* invalid version level */
0063     FC_FS_RJT_LOG =     0x03,   /* logical error */
0064     FC_FS_RJT_IUSIZ =   0x04,   /* invalid IU size */
0065     FC_FS_RJT_BSY =     0x05,   /* logical busy */
0066     FC_FS_RJT_PROTO =   0x07,   /* protocol error */
0067     FC_FS_RJT_UNABL =   0x09,   /* unable to perform command request */
0068     FC_FS_RJT_UNSUP =   0x0b,   /* command not supported */
0069 };
0070
0071 /*
0072  * FS_RJT reason code explanations.
0073  */
0074 enum fc_ct_explan {
0075     FC_FS_EXP_NONE =    0x00,   /* no additional explanation */
0076     FC_FS_EXP_PID =     0x01,   /* port ID not registered */
0077     FC_FS_EXP_PNAM =    0x02,   /* port name not registered */
0078     FC_FS_EXP_NNAM =    0x03,   /* node name not registered */
0079     FC_FS_EXP_COS =     0x04,   /* class of service not registered */
0080     FC_FS_EXP_FTNR =    0x07,   /* FC-4 types not registered */
0081     /* definitions not complete */
0082 };
0083
0084 #endif /* _FC_GS_H_ */