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fc_gs.h
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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_ */
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