summaryrefslogtreecommitdiff
path: root/include/scsi/fc/fc_ns.h
blob: 185015dd11669c5eac0a308ef779df0e1e702011 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
/*
 * Copyright(c) 2007 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Maintained at www.Open-FCoE.org
 */

#ifndef _FC_NS_H_
#define	_FC_NS_H_

#include <linux/types.h>

/*
 * Fibre Channel Services - Name Service (dNS)
 * From T11.org FC-GS-2 Rev 5.3 November 1998.
 */

/*
 * Common-transport sub-type for Name Server.
 */
#define	FC_NS_SUBTYPE	    2	/* fs_ct_hdr.ct_fs_subtype */

/*
 * Name server Requests.
 * Note:  this is an incomplete list, some unused requests are omitted.
 */
enum fc_ns_req {
	FC_NS_GA_NXT =	0x0100,		/* get all next */
	FC_NS_GI_A =	0x0101,		/* get identifiers - scope */
	FC_NS_GPN_ID =	0x0112,		/* get port name by ID */
	FC_NS_GNN_ID =	0x0113,		/* get node name by ID */
	FC_NS_GID_PN =	0x0121,		/* get ID for port name */
	FC_NS_GID_NN =	0x0131,		/* get IDs for node name */
	FC_NS_GID_FT =	0x0171,		/* get IDs by FC4 type */
	FC_NS_GPN_FT =	0x0172,		/* get port names by FC4 type */
	FC_NS_GID_PT =	0x01a1,		/* get IDs by port type */
	FC_NS_RPN_ID =	0x0212,		/* reg port name for ID */
	FC_NS_RNN_ID =	0x0213,		/* reg node name for ID */
	FC_NS_RFT_ID =	0x0217,		/* reg FC4 type for ID */
	FC_NS_RSPN_ID =	0x0218,		/* reg symbolic port name */
	FC_NS_RFF_ID =	0x021f,		/* reg FC4 Features for ID */
	FC_NS_RSNN_NN =	0x0239,		/* reg symbolic node name */
};

/*
 * Port type values.
 */
enum fc_ns_pt {
	FC_NS_UNID_PORT = 0x00,	/* unidentified */
	FC_NS_N_PORT =	0x01,	/* N port */
	FC_NS_NL_PORT =	0x02,	/* NL port */
	FC_NS_FNL_PORT = 0x03,	/* F/NL port */
	FC_NS_NX_PORT =	0x7f,	/* Nx port */
	FC_NS_F_PORT =	0x81,	/* F port */
	FC_NS_FL_PORT =	0x82,	/* FL port */
	FC_NS_E_PORT =	0x84,	/* E port */
	FC_NS_B_PORT =	0x85,	/* B port */
};

/*
 * Port type object.
 */
struct fc_ns_pt_obj {
	__u8		pt_type;
};

/*
 * Port ID object
 */
struct fc_ns_fid {
	__u8		fp_flags;	/* flags for responses only */
	__u8		fp_fid[3];
};

/*
 * fp_flags in port ID object, for responses only.
 */
#define	FC_NS_FID_LAST	0x80		/* last object */

/*
 * FC4-types object.
 */
#define	FC_NS_TYPES	256	/* number of possible FC-4 types */
#define	FC_NS_BPW	32	/* bits per word in bitmap */

struct fc_ns_fts {
	__be32	ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */
};

/*
 * FC4-features object.
 */
struct fc_ns_ff	{
	__be32	fd_feat[FC_NS_TYPES * 4 / FC_NS_BPW]; /* 4-bits per FC-type */
};

/*
 * GID_PT request.
 */
struct fc_ns_gid_pt {
	__u8		fn_pt_type;
	__u8		fn_domain_id_scope;
	__u8		fn_area_id_scope;
	__u8		fn_resvd;
};

/*
 * GID_FT or GPN_FT request.
 */
struct fc_ns_gid_ft {
	__u8		fn_resvd;
	__u8		fn_domain_id_scope;
	__u8		fn_area_id_scope;
	__u8		fn_fc4_type;
};

/*
 * GPN_FT response.
 */
struct fc_gpn_ft_resp {
	__u8		fp_flags;	/* see fp_flags definitions above */
	__u8		fp_fid[3];	/* port ID */
	__be32		fp_resvd;
	__be64		fp_wwpn;	/* port name */
};

/*
 * GID_PN request
 */
struct fc_ns_gid_pn {
	__be64     fn_wwpn;    /* port name */
};

/*
 * GID_PN response
 */
struct fc_gid_pn_resp {
	__u8      fp_resvd;
	__u8      fp_fid[3];     /* port ID */
};

/*
 * RFT_ID request - register FC-4 types for ID.
 */
struct fc_ns_rft_id {
	struct fc_ns_fid fr_fid;	/* port ID object */
	struct fc_ns_fts fr_fts;	/* FC-4 types object */
};

/*
 * RPN_ID request - register port name for ID.
 * RNN_ID request - register node name for ID.
 */
struct fc_ns_rn_id {
	struct fc_ns_fid fr_fid;	/* port ID object */
	__be64		fr_wwn;		/* node name or port name */
} __attribute__((__packed__));

/*
 * RSNN_NN request - register symbolic node name
 */
struct fc_ns_rsnn {
	__be64		fr_wwn;		/* node name */
	__u8		fr_name_len;
	char		fr_name[];
} __attribute__((__packed__));

/*
 * RSPN_ID request - register symbolic port name
 */
struct fc_ns_rspn {
	struct fc_ns_fid fr_fid;	/* port ID object */
	__u8		fr_name_len;
	char		fr_name[];
} __attribute__((__packed__));

/*
 * RFF_ID request - register FC-4 Features for ID.
 */
struct fc_ns_rff_id {
	struct fc_ns_fid fr_fid;	/* port ID object */
	__u8		fr_resvd[2];
	__u8		fr_feat;	/* FC-4 Feature bits */
	__u8		fr_type;	/* FC-4 type */
} __attribute__((__packed__));

#endif /* _FC_NS_H_ */