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
18struct 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
35enum fc_ct_rev {
36	FC_CT_REV = 1		/* common transport revision */
37};
38
39/*
40 * ct_fs_type values.
41 */
42enum 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 */
52enum fc_ct_cmd {
53	FC_FS_RJT =	0x8001,	/* reject */
54	FC_FS_ACC =	0x8002,	/* accept */
55};
56
57/*
58 * FS_RJT reason codes.
59 */
60enum 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 */
74enum 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_ */
85