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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_NS_H_
21#define _FC_NS_H_
22
23#include <linux/types.h>
24
25/*
26 * Fibre Channel Services - Name Service (dNS)
27 * From T11.org FC-GS-2 Rev 5.3 November 1998.
28 */
29
30/*
31 * Common-transport sub-type for Name Server.
32 */
33#define FC_NS_SUBTYPE 2 /* fs_ct_hdr.ct_fs_subtype */
34
35/*
36 * Name server Requests.
37 * Note: this is an incomplete list, some unused requests are omitted.
38 */
39enum fc_ns_req {
40 FC_NS_GA_NXT = 0x0100, /* get all next */
41 FC_NS_GI_A = 0x0101, /* get identifiers - scope */
42 FC_NS_GPN_ID = 0x0112, /* get port name by ID */
43 FC_NS_GNN_ID = 0x0113, /* get node name by ID */
44 FC_NS_GSPN_ID = 0x0118, /* get symbolic port name */
45 FC_NS_GID_PN = 0x0121, /* get ID for port name */
46 FC_NS_GID_NN = 0x0131, /* get IDs for node name */
47 FC_NS_GID_FT = 0x0171, /* get IDs by FC4 type */
48 FC_NS_GPN_FT = 0x0172, /* get port names by FC4 type */
49 FC_NS_GID_PT = 0x01a1, /* get IDs by port type */
50 FC_NS_RPN_ID = 0x0212, /* reg port name for ID */
51 FC_NS_RNN_ID = 0x0213, /* reg node name for ID */
52 FC_NS_RFT_ID = 0x0217, /* reg FC4 type for ID */
53 FC_NS_RSPN_ID = 0x0218, /* reg symbolic port name */
54 FC_NS_RFF_ID = 0x021f, /* reg FC4 Features for ID */
55 FC_NS_RSNN_NN = 0x0239, /* reg symbolic node name */
56};
57
58/*
59 * Port type values.
60 */
61enum fc_ns_pt {
62 FC_NS_UNID_PORT = 0x00, /* unidentified */
63 FC_NS_N_PORT = 0x01, /* N port */
64 FC_NS_NL_PORT = 0x02, /* NL port */
65 FC_NS_FNL_PORT = 0x03, /* F/NL port */
66 FC_NS_NX_PORT = 0x7f, /* Nx port */
67 FC_NS_F_PORT = 0x81, /* F port */
68 FC_NS_FL_PORT = 0x82, /* FL port */
69 FC_NS_E_PORT = 0x84, /* E port */
70 FC_NS_B_PORT = 0x85, /* B port */
71};
72
73/*
74 * Port type object.
75 */
76struct fc_ns_pt_obj {
77 __u8 pt_type;
78};
79
80/*
81 * Port ID object
82 */
83struct fc_ns_fid {
84 __u8 fp_flags; /* flags for responses only */
85 __u8 fp_fid[3];
86};
87
88/*
89 * fp_flags in port ID object, for responses only.
90 */
91#define FC_NS_FID_LAST 0x80 /* last object */
92
93/*
94 * FC4-types object.
95 */
96#define FC_NS_TYPES 256 /* number of possible FC-4 types */
97#define FC_NS_BPW 32 /* bits per word in bitmap */
98
99struct fc_ns_fts {
100 __be32 ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */
101};
102
103/*
104 * FC4-features object.
105 */
106struct fc_ns_ff {
107 __be32 fd_feat[FC_NS_TYPES * 4 / FC_NS_BPW]; /* 4-bits per FC-type */
108};
109
110/*
111 * GID_PT request.
112 */
113struct fc_ns_gid_pt {
114 __u8 fn_pt_type;
115 __u8 fn_domain_id_scope;
116 __u8 fn_area_id_scope;
117 __u8 fn_resvd;
118};
119
120/*
121 * GID_FT or GPN_FT request.
122 */
123struct fc_ns_gid_ft {
124 __u8 fn_resvd;
125 __u8 fn_domain_id_scope;
126 __u8 fn_area_id_scope;
127 __u8 fn_fc4_type;
128};
129
130/*
131 * GPN_FT response.
132 */
133struct fc_gpn_ft_resp {
134 __u8 fp_flags; /* see fp_flags definitions above */
135 __u8 fp_fid[3]; /* port ID */
136 __be32 fp_resvd;
137 __be64 fp_wwpn; /* port name */
138};
139
140/*
141 * GID_PN request
142 */
143struct fc_ns_gid_pn {
144 __be64 fn_wwpn; /* port name */
145};
146
147/*
148 * GID_PN response or GSPN_ID request
149 */
150struct fc_gid_pn_resp {
151 __u8 fp_resvd;
152 __u8 fp_fid[3]; /* port ID */
153};
154
155/*
156 * GSPN_ID response
157 */
158struct fc_gspn_resp {
159 __u8 fp_name_len;
160 char fp_name[];
161};
162
163/*
164 * RFT_ID request - register FC-4 types for ID.
165 */
166struct fc_ns_rft_id {
167 struct fc_ns_fid fr_fid; /* port ID object */
168 struct fc_ns_fts fr_fts; /* FC-4 types object */
169};
170
171/*
172 * RPN_ID request - register port name for ID.
173 * RNN_ID request - register node name for ID.
174 */
175struct fc_ns_rn_id {
176 struct fc_ns_fid fr_fid; /* port ID object */
177 __be64 fr_wwn; /* node name or port name */
178} __attribute__((__packed__));
179
180/*
181 * RSNN_NN request - register symbolic node name
182 */
183struct fc_ns_rsnn {
184 __be64 fr_wwn; /* node name */
185 __u8 fr_name_len;
186 char fr_name[];
187} __attribute__((__packed__));
188
189/*
190 * RSPN_ID request - register symbolic port name
191 */
192struct fc_ns_rspn {
193 struct fc_ns_fid fr_fid; /* port ID object */
194 __u8 fr_name_len;
195 char fr_name[];
196} __attribute__((__packed__));
197
198/*
199 * RFF_ID request - register FC-4 Features for ID.
200 */
201struct fc_ns_rff_id {
202 struct fc_ns_fid fr_fid; /* port ID object */
203 __u8 fr_resvd[2];
204 __u8 fr_feat; /* FC-4 Feature bits */
205 __u8 fr_type; /* FC-4 type */
206} __attribute__((__packed__));
207
208#endif /* _FC_NS_H_ */