1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2/*
 3 * Copyright(c) 2007 Intel Corporation. All rights reserved.
 4 *
 5 * This program is free software; you can redistribute it and/or modify it
 6 * under the terms and conditions of the GNU General Public License,
 7 * version 2, as published by the Free Software Foundation.
 8 *
 9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Maintained at www.Open-FCoE.org
19 */
20
21#ifndef _FC_GS_H_
22#define	_FC_GS_H_
23
24#include <linux/types.h>
25
26/*
27 * Fibre Channel Services - Common Transport.
28 * From T11.org FC-GS-2 Rev 5.3 November 1998.
29 */
30
31struct fc_ct_hdr {
32	__u8		ct_rev;		/* revision */
33	__u8		ct_in_id[3];	/* N_Port ID of original requestor */
34	__u8		ct_fs_type;	/* type of fibre channel service */
35	__u8		ct_fs_subtype;	/* subtype */
36	__u8		ct_options;
37	__u8		_ct_resvd1;
38	__be16		ct_cmd;		/* command / response code */
39	__be16		ct_mr_size;	/* maximum / residual size */
40	__u8		_ct_resvd2;
41	__u8		ct_reason;	/* reject reason */
42	__u8		ct_explan;	/* reason code explanation */
43	__u8		ct_vendor;	/* vendor unique data */
44};
45
46#define	FC_CT_HDR_LEN	16	/* expected sizeof (struct fc_ct_hdr) */
47
48enum fc_ct_rev {
49	FC_CT_REV = 1		/* common transport revision */
50};
51
52/*
53 * ct_fs_type values.
54 */
55enum fc_ct_fs_type {
56	FC_FST_ALIAS =	0xf8,	/* alias service */
57	FC_FST_MGMT =	0xfa,	/* management service */
58	FC_FST_TIME =	0xfb,	/* time service */
59	FC_FST_DIR =	0xfc,	/* directory service */
60};
61
62/*
63 * ct_cmd: Command / response codes
64 */
65enum fc_ct_cmd {
66	FC_FS_RJT =	0x8001,	/* reject */
67	FC_FS_ACC =	0x8002,	/* accept */
68};
69
70/*
71 * FS_RJT reason codes.
72 */
73enum fc_ct_reason {
74	FC_FS_RJT_CMD =		0x01,	/* invalid command code */
75	FC_FS_RJT_VER =		0x02,	/* invalid version level */
76	FC_FS_RJT_LOG =		0x03,	/* logical error */
77	FC_FS_RJT_IUSIZ =	0x04,	/* invalid IU size */
78	FC_FS_RJT_BSY =		0x05,	/* logical busy */
79	FC_FS_RJT_PROTO =	0x07,	/* protocol error */
80	FC_FS_RJT_UNABL =	0x09,	/* unable to perform command request */
81	FC_FS_RJT_UNSUP =	0x0b,	/* command not supported */
82};
83
84/*
85 * FS_RJT reason code explanations.
86 */
87enum fc_ct_explan {
88	FC_FS_EXP_NONE =	0x00,	/* no additional explanation */
89	FC_FS_EXP_PID =		0x01,	/* port ID not registered */
90	FC_FS_EXP_PNAM =	0x02,	/* port name not registered */
91	FC_FS_EXP_NNAM =	0x03,	/* node name not registered */
92	FC_FS_EXP_COS =		0x04,	/* class of service not registered */
93	FC_FS_EXP_FTNR =	0x07,	/* FC-4 types not registered */
94	/* definitions not complete */
95};
96
97#endif /* _FC_GS_H_ */