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_ */