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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2008 Cisco Systems, Inc. All rights reserved.
*/
#ifndef _FC_FIP_H_
#define _FC_FIP_H_
#include <scsi/fc/fc_ns.h>
/*
* This version is based on:
* http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf
* and T11 FC-BB-6 13-091v5.pdf (December 2013 VN2VN proposal)
*/
#define FIP_DEF_PRI 128 /* default selection priority */
#define FIP_DEF_FC_MAP 0x0efc00 /* default FCoE MAP (MAC OUI) value */
#define FIP_DEF_FKA 8000 /* default FCF keep-alive/advert period (mS) */
#define FIP_VN_KA_PERIOD 90000 /* required VN_port keep-alive period (mS) */
#define FIP_FCF_FUZZ 100 /* random time added by FCF (mS) */
/*
* VN2VN proposed-standard values.
*/
#define FIP_VN_FC_MAP 0x0efd00 /* MAC OUI for VN2VN use */
#define FIP_VN_PROBE_WAIT 100 /* interval between VN2VN probes (ms) */
#define FIP_VN_ANN_WAIT 400 /* interval between VN2VN announcements (ms) */
#define FIP_VN_RLIM_INT 10000 /* interval between probes when rate limited */
#define FIP_VN_RLIM_COUNT 10 /* number of probes before rate limiting */
#define FIP_VN_BEACON_INT 8000 /* interval between VN2VN beacons */
#define FIP_VN_BEACON_FUZZ 100 /* random time to add to beacon period (ms) */
/*
* Multicast MAC addresses. T11-adopted.
*/
#define FIP_ALL_FCOE_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 0 })
#define FIP_ALL_ENODE_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 1 })
#define FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
#define FIP_ALL_VN2VN_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 4 })
#define FIP_ALL_P2P_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 5 })
#define FIP_VER 1 /* version for fip_header */
struct fip_header {
__u8 fip_ver; /* upper 4 bits are the version */
__u8 fip_resv1; /* reserved */
__be16 fip_op; /* operation code */
__u8 fip_resv2; /* reserved */
__u8 fip_subcode; /* lower 4 bits are sub-code */
__be16 fip_dl_len; /* length of descriptors in words */
__be16 fip_flags; /* header flags */
} __attribute__((packed));
#define FIP_VER_SHIFT 4
#define FIP_VER_ENCAPS(v) ((v) << FIP_VER_SHIFT)
#define FIP_VER_DECAPS(v) ((v) >> FIP_VER_SHIFT)
#define FIP_BPW 4 /* bytes per word for lengths */
/*
* fip_op.
*/
enum fip_opcode {
FIP_OP_DISC = 1, /* discovery, advertisement, etc. */
FIP_OP_LS = 2, /* Link Service request or reply */
FIP_OP_CTRL = 3, /* Keep Alive / Link Reset */
FIP_OP_VLAN = 4, /* VLAN discovery */
FIP_OP_VN2VN = 5, /* VN2VN operation */
FIP_OP_VENDOR_MIN = 0xfff8, /* min vendor-specific opcode */
FIP_OP_VENDOR_MAX = 0xfffe, /* max vendor-specific opcode */
};
/*
* Subcodes for FIP_OP_DISC.
*/
enum fip_disc_subcode {
FIP_SC_SOL = 1, /* solicitation */
FIP_SC_ADV = 2, /* advertisement */
};
/*
* Subcodes for FIP_OP_LS.
*/
enum fip_trans_subcode {
FIP_SC_REQ = 1, /* request */
FIP_SC_REP = 2, /* reply */
};
/*
* Subcodes for FIP_OP_RESET.
*/
enum fip_reset_subcode {
FIP_SC_KEEP_ALIVE = 1, /* keep-alive from VN_Port */
FIP_SC_CLR_VLINK = 2, /* clear virtual link from VF_Port */
};
/*
* Subcodes for FIP_OP_VLAN.
*/
enum fip_vlan_subcode {
FIP_SC_VL_REQ = 1, /* vlan request */
FIP_SC_VL_NOTE = 2, /* vlan notification */
FIP_SC_VL_VN2VN_NOTE = 3, /* VN2VN vlan notification */
};
/*
* Subcodes for FIP_OP_VN2VN.
*/
enum fip_vn2vn_subcode {
FIP_SC_VN_PROBE_REQ = 1, /* probe request */
FIP_SC_VN_PROBE_REP = 2, /* probe reply */
FIP_SC_VN_CLAIM_NOTIFY = 3, /* claim notification */
FIP_SC_VN_CLAIM_REP = 4, /* claim response */
FIP_SC_VN_BEACON = 5, /* beacon */
};
/*
* flags in header fip_flags.
*/
enum fip_flag {
FIP_FL_FPMA = 0x8000, /* supports FPMA fabric-provided MACs */
FIP_FL_SPMA = 0x4000, /* supports SPMA server-provided MACs */
FIP_FL_FCF = 0x0020, /* originated from a controlling FCF */
FIP_FL_FDF = 0x0010, /* originated from an FDF */
FIP_FL_REC_OR_P2P = 0x0008, /* configured addr or point-to-point */
FIP_FL_AVAIL = 0x0004, /* available for FLOGI/ELP */
FIP_FL_SOL = 0x0002, /* this is a solicited message */
FIP_FL_FPORT = 0x0001, /* sent from an F port */
};
/*
* Common descriptor header format.
*/
struct fip_desc {
__u8 fip_dtype; /* type - see below */
__u8 fip_dlen; /* length - in 32-bit words */
};
enum fip_desc_type {
FIP_DT_PRI = 1, /* priority for forwarder selection */
FIP_DT_MAC = 2, /* MAC address */
FIP_DT_MAP_OUI = 3, /* FC-MAP OUI */
FIP_DT_NAME = 4, /* switch name or node name */
FIP_DT_FAB = 5, /* fabric descriptor */
FIP_DT_FCOE_SIZE = 6, /* max FCoE frame size */
FIP_DT_FLOGI = 7, /* FLOGI request or response */
FIP_DT_FDISC = 8, /* FDISC request or response */
FIP_DT_LOGO = 9, /* LOGO request or response */
FIP_DT_ELP = 10, /* ELP request or response */
FIP_DT_VN_ID = 11, /* VN_Node Identifier */
FIP_DT_FKA = 12, /* advertisement keep-alive period */
FIP_DT_VENDOR = 13, /* vendor ID */
FIP_DT_VLAN = 14, /* vlan number */
FIP_DT_FC4F = 15, /* FC-4 features */
FIP_DT_LIMIT, /* max defined desc_type + 1 */
FIP_DT_NON_CRITICAL = 128, /* First non-critical descriptor */
FIP_DT_CLR_VLINKS = 128, /* Clear virtual links reason code */
FIP_DT_VENDOR_BASE = 241, /* first vendor-specific desc_type */
};
/*
* FIP_DT_PRI - priority descriptor.
*/
struct fip_pri_desc {
struct fip_desc fd_desc;
__u8 fd_resvd;
__u8 fd_pri; /* FCF priority: higher is better */
} __attribute__((packed));
/*
* FIP_DT_MAC - MAC address descriptor.
*/
struct fip_mac_desc {
struct fip_desc fd_desc;
__u8 fd_mac[ETH_ALEN];
} __attribute__((packed));
/*
* FIP_DT_MAP - descriptor.
*/
struct fip_map_desc {
struct fip_desc fd_desc;
__u8 fd_resvd[3];
__u8 fd_map[3];
} __attribute__((packed));
/*
* FIP_DT_NAME descriptor.
*/
struct fip_wwn_desc {
struct fip_desc fd_desc;
__u8 fd_resvd[2];
__be64 fd_wwn; /* 64-bit WWN, unaligned */
} __attribute__((packed));
/*
* FIP_DT_FAB descriptor.
*/
struct fip_fab_desc {
struct fip_desc fd_desc;
__be16 fd_vfid; /* virtual fabric ID */
__u8 fd_resvd;
__u8 fd_map[3]; /* FC-MAP value */
__be64 fd_wwn; /* fabric name, unaligned */
} __attribute__((packed));
/*
* FIP_DT_FCOE_SIZE descriptor.
*/
struct fip_size_desc {
struct fip_desc fd_desc;
__be16 fd_size;
} __attribute__((packed));
/*
* Descriptor that encapsulates an ELS or ILS frame.
* The encapsulated frame immediately follows this header, without
* SOF, EOF, or CRC.
*/
struct fip_encaps {
struct fip_desc fd_desc;
__u8 fd_resvd[2];
} __attribute__((packed));
/*
* FIP_DT_VN_ID - VN_Node Identifier descriptor.
*/
struct fip_vn_desc {
struct fip_desc fd_desc;
__u8 fd_mac[ETH_ALEN];
__u8 fd_resvd;
__u8 fd_fc_id[3];
__be64 fd_wwpn; /* port name, unaligned */
} __attribute__((packed));
/*
* FIP_DT_FKA - Advertisement keep-alive period.
*/
struct fip_fka_desc {
struct fip_desc fd_desc;
__u8 fd_resvd;
__u8 fd_flags; /* bit0 is fka disable flag */
__be32 fd_fka_period; /* adv./keep-alive period in mS */
} __attribute__((packed));
/*
* flags for fip_fka_desc.fd_flags
*/
enum fip_fka_flags {
FIP_FKA_ADV_D = 0x01, /* no need for FKA from ENode */
};
/* FIP_DT_FKA flags */
/*
* FIP_DT_VLAN descriptor
*/
struct fip_vlan_desc {
struct fip_desc fd_desc;
__be16 fd_vlan; /* Note: highest 4 bytes are unused */
} __attribute__((packed));
/*
* FIP_DT_FC4F - FC-4 features.
*/
struct fip_fc4_feat {
struct fip_desc fd_desc;
__u8 fd_resvd[2];
struct fc_ns_fts fd_fts;
struct fc_ns_ff fd_ff;
} __attribute__((packed));
/*
* FIP_DT_VENDOR descriptor.
*/
struct fip_vendor_desc {
struct fip_desc fd_desc;
__u8 fd_resvd[2];
__u8 fd_vendor_id[8];
} __attribute__((packed));
#endif /* _FC_FIP_H_ */
|