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added 2.6.29.6 aldebaran kernel
[nao-ulib.git] / kernel / 2.6.29.6-aldebaran-rt / include / scsi / fc / fc_els.h
blob195ca014d3ce3239063cd171d2aed109b0523cf0
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_ELS_H_
21 #define _FC_ELS_H_
22
23 /*
24 * Fibre Channel Switch - Enhanced Link Services definitions.
25 * From T11 FC-LS Rev 1.2 June 7, 2005.
26 */
27
28 /*
29 * ELS Command codes - byte 0 of the frame payload
30 */
31 enum fc_els_cmd {
32 ELS_LS_RJT = 0x01, /* ESL reject */
33 ELS_LS_ACC = 0x02, /* ESL Accept */
34 ELS_PLOGI = 0x03, /* N_Port login */
35 ELS_FLOGI = 0x04, /* F_Port login */
36 ELS_LOGO = 0x05, /* Logout */
37 ELS_ABTX = 0x06, /* Abort exchange - obsolete */
38 ELS_RCS = 0x07, /* read connection status */
39 ELS_RES = 0x08, /* read exchange status block */
40 ELS_RSS = 0x09, /* read sequence status block */
41 ELS_RSI = 0x0a, /* read sequence initiative */
42 ELS_ESTS = 0x0b, /* establish streaming */
43 ELS_ESTC = 0x0c, /* estimate credit */
44 ELS_ADVC = 0x0d, /* advise credit */
45 ELS_RTV = 0x0e, /* read timeout value */
46 ELS_RLS = 0x0f, /* read link error status block */
47 ELS_ECHO = 0x10, /* echo */
48 ELS_TEST = 0x11, /* test */
49 ELS_RRQ = 0x12, /* reinstate recovery qualifier */
50 ELS_REC = 0x13, /* read exchange concise */
51 ELS_SRR = 0x14, /* sequence retransmission request */
52 ELS_PRLI = 0x20, /* process login */
53 ELS_PRLO = 0x21, /* process logout */
54 ELS_SCN = 0x22, /* state change notification */
55 ELS_TPLS = 0x23, /* test process login state */
56 ELS_TPRLO = 0x24, /* third party process logout */
57 ELS_LCLM = 0x25, /* login control list mgmt (obs) */
58 ELS_GAID = 0x30, /* get alias_ID */
59 ELS_FACT = 0x31, /* fabric activate alias_id */
60 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */
61 ELS_NACT = 0x33, /* N-port activate alias_id */
62 ELS_NDACT = 0x34, /* N-port deactivate alias_id */
63 ELS_QOSR = 0x40, /* quality of service request */
64 ELS_RVCS = 0x41, /* read virtual circuit status */
65 ELS_PDISC = 0x50, /* discover N_port service params */
66 ELS_FDISC = 0x51, /* discover F_port service params */
67 ELS_ADISC = 0x52, /* discover address */
68 ELS_RNC = 0x53, /* report node cap (obs) */
69 ELS_FARP_REQ = 0x54, /* FC ARP request */
70 ELS_FARP_REPL = 0x55, /* FC ARP reply */
71 ELS_RPS = 0x56, /* read port status block */
72 ELS_RPL = 0x57, /* read port list */
73 ELS_RPBC = 0x58, /* read port buffer condition */
74 ELS_FAN = 0x60, /* fabric address notification */
75 ELS_RSCN = 0x61, /* registered state change notification */
76 ELS_SCR = 0x62, /* state change registration */
77 ELS_RNFT = 0x63, /* report node FC-4 types */
78 ELS_CSR = 0x68, /* clock synch. request */
79 ELS_CSU = 0x69, /* clock synch. update */
80 ELS_LINIT = 0x70, /* loop initialize */
81 ELS_LSTS = 0x72, /* loop status */
82 ELS_RNID = 0x78, /* request node ID data */
83 ELS_RLIR = 0x79, /* registered link incident report */
84 ELS_LIRR = 0x7a, /* link incident record registration */
85 ELS_SRL = 0x7b, /* scan remote loop */
86 ELS_SBRP = 0x7c, /* set bit-error reporting params */
87 ELS_RPSC = 0x7d, /* report speed capabilities */
88 ELS_QSA = 0x7e, /* query security attributes */
89 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */
90 ELS_LKA = 0x80, /* link keep-alive */
91 ELS_AUTH_ELS = 0x90, /* authentication ELS */
92 };
93
94 /*
95 * Initializer useful for decoding table.
96 * Please keep this in sync with the above definitions.
97 */
98 #define FC_ELS_CMDS_INIT { \
99 [ELS_LS_RJT] = "LS_RJT", \
100 [ELS_LS_ACC] = "LS_ACC", \
101 [ELS_PLOGI] = "PLOGI", \
102 [ELS_FLOGI] = "FLOGI", \
103 [ELS_LOGO] = "LOGO", \
104 [ELS_ABTX] = "ABTX", \
105 [ELS_RCS] = "RCS", \
106 [ELS_RES] = "RES", \
107 [ELS_RSS] = "RSS", \
108 [ELS_RSI] = "RSI", \
109 [ELS_ESTS] = "ESTS", \
110 [ELS_ESTC] = "ESTC", \
111 [ELS_ADVC] = "ADVC", \
112 [ELS_RTV] = "RTV", \
113 [ELS_RLS] = "RLS", \
114 [ELS_ECHO] = "ECHO", \
115 [ELS_TEST] = "TEST", \
116 [ELS_RRQ] = "RRQ", \
117 [ELS_REC] = "REC", \
118 [ELS_SRR] = "SRR", \
119 [ELS_PRLI] = "PRLI", \
120 [ELS_PRLO] = "PRLO", \
121 [ELS_SCN] = "SCN", \
122 [ELS_TPLS] = "TPLS", \
123 [ELS_TPRLO] = "TPRLO", \
124 [ELS_LCLM] = "LCLM", \
125 [ELS_GAID] = "GAID", \
126 [ELS_FACT] = "FACT", \
127 [ELS_FDACDT] = "FDACDT", \
128 [ELS_NACT] = "NACT", \
129 [ELS_NDACT] = "NDACT", \
130 [ELS_QOSR] = "QOSR", \
131 [ELS_RVCS] = "RVCS", \
132 [ELS_PDISC] = "PDISC", \
133 [ELS_FDISC] = "FDISC", \
134 [ELS_ADISC] = "ADISC", \
135 [ELS_RNC] = "RNC", \
136 [ELS_FARP_REQ] = "FARP_REQ", \
137 [ELS_FARP_REPL] = "FARP_REPL", \
138 [ELS_RPS] = "RPS", \
139 [ELS_RPL] = "RPL", \
140 [ELS_RPBC] = "RPBC", \
141 [ELS_FAN] = "FAN", \
142 [ELS_RSCN] = "RSCN", \
143 [ELS_SCR] = "SCR", \
144 [ELS_RNFT] = "RNFT", \
145 [ELS_CSR] = "CSR", \
146 [ELS_CSU] = "CSU", \
147 [ELS_LINIT] = "LINIT", \
148 [ELS_LSTS] = "LSTS", \
149 [ELS_RNID] = "RNID", \
150 [ELS_RLIR] = "RLIR", \
151 [ELS_LIRR] = "LIRR", \
152 [ELS_SRL] = "SRL", \
153 [ELS_SBRP] = "SBRP", \
154 [ELS_RPSC] = "RPSC", \
155 [ELS_QSA] = "QSA", \
156 [ELS_EVFP] = "EVFP", \
157 [ELS_LKA] = "LKA", \
158 [ELS_AUTH_ELS] = "AUTH_ELS", \
159 }
160
161 /*
162 * LS_ACC payload.
163 */
164 struct fc_els_ls_acc {
165 __u8 la_cmd; /* command code ELS_LS_ACC */
166 __u8 la_resv[3]; /* reserved */
167 };
168
169 /*
170 * ELS reject payload.
171 */
172 struct fc_els_ls_rjt {
173 __u8 er_cmd; /* command code ELS_LS_RJT */
174 __u8 er_resv[4]; /* reserved must be zero */
175 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */
176 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */
177 __u8 er_vendor; /* vendor specific code */
178 };
179
180 /*
181 * ELS reject reason codes (er_reason).
182 */
183 enum fc_els_rjt_reason {
184 ELS_RJT_NONE = 0, /* no reject - not to be sent */
185 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */
186 ELS_RJT_LOGIC = 0x03, /* logical error */
187 ELS_RJT_BUSY = 0x05, /* logical busy */
188 ELS_RJT_PROT = 0x07, /* protocol error */
189 ELS_RJT_UNAB = 0x09, /* unable to perform command request */
190 ELS_RJT_UNSUP = 0x0b, /* command not supported */
191 ELS_RJT_INPROG = 0x0e, /* command already in progress */
192 ELS_RJT_VENDOR = 0xff, /* vendor specific error */
193 };
194
195
196 /*
197 * reason code explanation (er_explan).
198 */
199 enum fc_els_rjt_explan {
200 ELS_EXPL_NONE = 0x00, /* No additional explanation */
201 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */
202 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */
203 ELS_EXPL_AH = 0x11, /* invalid association header */
204 ELS_EXPL_AH_REQ = 0x13, /* association_header required */
205 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */
206 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */
207 ELS_EXPL_INPROG = 0x19, /* Request already in progress */
208 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */
209 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */
210 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */
211 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */
212 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */
213 /* TBD - above definitions incomplete */
214 };
215
216 /*
217 * Common service parameters (N ports).
218 */
219 struct fc_els_csp {
220 __u8 sp_hi_ver; /* highest version supported (obs.) */
221 __u8 sp_lo_ver; /* highest version supported (obs.) */
222 __be16 sp_bb_cred; /* buffer-to-buffer credits */
223 __be16 sp_features; /* common feature flags */
224 __be16 sp_bb_data; /* b-b state number and data field sz */
225 union {
226 struct {
227 __be16 _sp_tot_seq; /* total concurrent sequences */
228 __be16 _sp_rel_off; /* rel. offset by info cat */
229 } sp_plogi;
230 struct {
231 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */
232 } sp_flogi_acc;
233 } sp_u;
234 __be32 sp_e_d_tov; /* error detect timeout value */
235 };
236 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq
237 #define sp_rel_off sp_u.sp_plogi._sp_rel_off
238 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov
239
240 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */
241
242 /*
243 * Minimum and maximum values for max data field size in service parameters.
244 */
245 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD
246 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD
247
248 /*
249 * sp_features
250 */
251 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel. off. */
252 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */
253 #define FC_SP_FT_RAND 0x4000 /* random relative offset */
254 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */
255 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */
256 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */
257 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */
258 #define FC_SP_FT_MCAST 0x0200 /* multicast */
259 #define FC_SP_FT_BCAST 0x0100 /* broadcast */
260 #define FC_SP_FT_HUNT 0x0080 /* hunt group */
261 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */
262 #define FC_SP_FT_SEC 0x0020 /* reserved for security */
263 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */
264 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */
265 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */
266 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */
267 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */
268
269 /*
270 * Class-specific service parameters.
271 */
272 struct fc_els_cssp {
273 __be16 cp_class; /* class flags */
274 __be16 cp_init; /* initiator flags */
275 __be16 cp_recip; /* recipient flags */
276 __be16 cp_rdfs; /* receive data field size */
277 __be16 cp_con_seq; /* concurrent sequences */
278 __be16 cp_ee_cred; /* N-port end-to-end credit */
279 __u8 cp_resv1; /* reserved */
280 __u8 cp_open_seq; /* open sequences per exchange */
281 __u8 _cp_resv2[2]; /* reserved */
282 };
283
284 /*
285 * cp_class flags.
286 */
287 #define FC_CPC_VALID 0x8000 /* class valid */
288 #define FC_CPC_IMIX 0x4000 /* intermix mode */
289 #define FC_CPC_SEQ 0x0800 /* sequential delivery */
290 #define FC_CPC_CAMP 0x0200 /* camp-on */
291 #define FC_CPC_PRI 0x0080 /* priority */
292
293 /*
294 * cp_init flags.
295 * (TBD: not all flags defined here).
296 */
297 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */
298
299 /*
300 * cp_recip flags.
301 */
302 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */
303
304 /*
305 * NFC_ELS_FLOGI: Fabric login request.
306 * NFC_ELS_PLOGI: Port login request (same format).
307 */
308 struct fc_els_flogi {
309 __u8 fl_cmd; /* command */
310 __u8 _fl_resvd[3]; /* must be zero */
311 struct fc_els_csp fl_csp; /* common service parameters */
312 __be64 fl_wwpn; /* port name */
313 __be64 fl_wwnn; /* node name */
314 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */
315 __u8 fl_vend[16]; /* vendor version level */
316 } __attribute__((__packed__));
317
318 /*
319 * Process login service parameter page.
320 */
321 struct fc_els_spp {
322 __u8 spp_type; /* type code or common service params */
323 __u8 spp_type_ext; /* type code extension */
324 __u8 spp_flags;
325 __u8 _spp_resvd;
326 __be32 spp_orig_pa; /* originator process associator */
327 __be32 spp_resp_pa; /* responder process associator */
328 __be32 spp_params; /* service parameters */
329 };
330
331 /*
332 * spp_flags.
333 */
334 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */
335 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */
336 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */
337 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */
338
339 /*
340 * SPP response code in spp_flags - lower 4 bits.
341 */
342 enum fc_els_spp_resp {
343 FC_SPP_RESP_ACK = 1, /* request executed */
344 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */
345 FC_SPP_RESP_INIT = 3, /* initialization not complete */
346 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */
347 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */
348 FC_SPP_RESP_COND = 6, /* request completed conditionally */
349 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */
350 FC_SPP_RESP_INVL = 8, /* SPP is invalid */
351 };
352
353 /*
354 * ELS_RRQ - Reinstate Recovery Qualifier
355 */
356 struct fc_els_rrq {
357 __u8 rrq_cmd; /* command (0x12) */
358 __u8 rrq_zero[3]; /* specified as zero - part of cmd */
359 __u8 rrq_resvd; /* reserved */
360 __u8 rrq_s_id[3]; /* originator FID */
361 __be16 rrq_ox_id; /* originator exchange ID */
362 __be16 rrq_rx_id; /* responders exchange ID */
363 };
364
365 /*
366 * ELS_REC - Read exchange concise.
367 */
368 struct fc_els_rec {
369 __u8 rec_cmd; /* command (0x13) */
370 __u8 rec_zero[3]; /* specified as zero - part of cmd */
371 __u8 rec_resvd; /* reserved */
372 __u8 rec_s_id[3]; /* originator FID */
373 __be16 rec_ox_id; /* originator exchange ID */
374 __be16 rec_rx_id; /* responders exchange ID */
375 };
376
377 /*
378 * ELS_REC LS_ACC payload.
379 */
380 struct fc_els_rec_acc {
381 __u8 reca_cmd; /* accept (0x02) */
382 __u8 reca_zero[3]; /* specified as zero - part of cmd */
383 __be16 reca_ox_id; /* originator exchange ID */
384 __be16 reca_rx_id; /* responders exchange ID */
385 __u8 reca_resvd1; /* reserved */
386 __u8 reca_ofid[3]; /* originator FID */
387 __u8 reca_resvd2; /* reserved */
388 __u8 reca_rfid[3]; /* responder FID */
389 __be32 reca_fc4value; /* FC4 value */
390 __be32 reca_e_stat; /* ESB (exchange status block) status */
391 };
392
393 /*
394 * ELS_PRLI - Process login request and response.
395 */
396 struct fc_els_prli {
397 __u8 prli_cmd; /* command */
398 __u8 prli_spp_len; /* length of each serv. parm. page */
399 __be16 prli_len; /* length of entire payload */
400 /* service parameter pages follow */
401 };
402
403 /*
404 * ELS_ADISC payload
405 */
406 struct fc_els_adisc {
407 __u8 adisc_cmd;
408 __u8 adisc_resv[3];
409 __u8 adisc_resv1;
410 __u8 adisc_hard_addr[3];
411 __be64 adisc_wwpn;
412 __be64 adisc_wwnn;
413 __u8 adisc_resv2;
414 __u8 adisc_port_id[3];
415 } __attribute__((__packed__));
416
417 /*
418 * ELS_LOGO - process or fabric logout.
419 */
420 struct fc_els_logo {
421 __u8 fl_cmd; /* command code */
422 __u8 fl_zero[3]; /* specified as zero - part of cmd */
423 __u8 fl_resvd; /* reserved */
424 __u8 fl_n_port_id[3];/* N port ID */
425 __be64 fl_n_port_wwn; /* port name */
426 };
427
428 /*
429 * ELS_RTV - read timeout value.
430 */
431 struct fc_els_rtv {
432 __u8 rtv_cmd; /* command code 0x0e */
433 __u8 rtv_zero[3]; /* specified as zero - part of cmd */
434 };
435
436 /*
437 * LS_ACC for ELS_RTV - read timeout value.
438 */
439 struct fc_els_rtv_acc {
440 __u8 rtv_cmd; /* command code 0x02 */
441 __u8 rtv_zero[3]; /* specified as zero - part of cmd */
442 __be32 rtv_r_a_tov; /* resource allocation timeout value */
443 __be32 rtv_e_d_tov; /* error detection timeout value */
444 __be32 rtv_toq; /* timeout qualifier (see below) */
445 };
446
447 /*
448 * rtv_toq bits.
449 */
450 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */
451 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */
452
453 /*
454 * ELS_SCR - state change registration payload.
455 */
456 struct fc_els_scr {
457 __u8 scr_cmd; /* command code */
458 __u8 scr_resv[6]; /* reserved */
459 __u8 scr_reg_func; /* registration function (see below) */
460 };
461
462 enum fc_els_scr_func {
463 ELS_SCRF_FAB = 1, /* fabric-detected registration */
464 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */
465 ELS_SCRF_FULL = 3, /* full registration */
466 ELS_SCRF_CLEAR = 255, /* remove any current registrations */
467 };
468
469 /*
470 * ELS_RSCN - registered state change notification payload.
471 */
472 struct fc_els_rscn {
473 __u8 rscn_cmd; /* RSCN opcode (0x61) */
474 __u8 rscn_page_len; /* page length (4) */
475 __be16 rscn_plen; /* payload length including this word */
476
477 /* followed by 4-byte generic affected Port_ID pages */
478 };
479
480 struct fc_els_rscn_page {
481 __u8 rscn_page_flags; /* event and address format */
482 __u8 rscn_fid[3]; /* fabric ID */
483 };
484
485 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */
486 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */
487 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */
488 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */
489
490 enum fc_els_rscn_ev_qual {
491 ELS_EV_QUAL_NONE = 0, /* unspecified */
492 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */
493 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */
494 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */
495 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */
496 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */
497 };
498
499 enum fc_els_rscn_addr_fmt {
500 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */
501 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */
502 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */
503 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */
504 };
505
506 /*
507 * ELS_RNID - request Node ID.
508 */
509 struct fc_els_rnid {
510 __u8 rnid_cmd; /* RNID opcode (0x78) */
511 __u8 rnid_resv[3]; /* reserved */
512 __u8 rnid_fmt; /* data format */
513 __u8 rnid_resv2[3]; /* reserved */
514 };
515
516 /*
517 * Node Identification Data formats (rnid_fmt)
518 */
519 enum fc_els_rnid_fmt {
520 ELS_RNIDF_NONE = 0, /* no specific identification data */
521 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */
522 };
523
524 /*
525 * ELS_RNID response.
526 */
527 struct fc_els_rnid_resp {
528 __u8 rnid_cmd; /* response code (LS_ACC) */
529 __u8 rnid_resv[3]; /* reserved */
530 __u8 rnid_fmt; /* data format */
531 __u8 rnid_cid_len; /* common ID data length */
532 __u8 rnid_resv2; /* reserved */
533 __u8 rnid_sid_len; /* specific ID data length */
534 };
535
536 struct fc_els_rnid_cid {
537 __be64 rnid_wwpn; /* N port name */
538 __be64 rnid_wwnn; /* node name */
539 };
540
541 struct fc_els_rnid_gen {
542 __u8 rnid_vend_id[16]; /* vendor-unique ID */
543 __be32 rnid_atype; /* associated type (see below) */
544 __be32 rnid_phys_port; /* physical port number */
545 __be32 rnid_att_nodes; /* number of attached nodes */
546 __u8 rnid_node_mgmt; /* node management (see below) */
547 __u8 rnid_ip_ver; /* IP version (see below) */
548 __be16 rnid_prot_port; /* UDP / TCP port number */
549 __be32 rnid_ip_addr[4]; /* IP address */
550 __u8 rnid_resvd[2]; /* reserved */
551 __be16 rnid_vend_spec; /* vendor-specific field */
552 };
553
554 enum fc_els_rnid_atype {
555 ELS_RNIDA_UNK = 0x01, /* unknown */
556 ELS_RNIDA_OTHER = 0x02, /* none of the following */
557 ELS_RNIDA_HUB = 0x03,
558 ELS_RNIDA_SWITCH = 0x04,
559 ELS_RNIDA_GATEWAY = 0x05,
560 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */
561 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */
562 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */
563 ELS_RNIDA_STORAGE = 0x09,
564 ELS_RNIDA_HOST = 0x0a,
565 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */
566 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */
567 ELS_RNIDA_NAS = 0x11, /* NAS server */
568 ELS_RNIDA_BRIDGE = 0x12, /* bridge */
569 ELS_RNIDA_VIRT = 0x13, /* virtualization device */
570 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */
571 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */
572 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */
573 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */
574 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */
575 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */
576 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */
577 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */
578 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */
579 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */
580 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */
581 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */
582 };
583
584 enum fc_els_rnid_mgmt {
585 ELS_RNIDM_SNMP = 0,
586 ELS_RNIDM_TELNET = 1,
587 ELS_RNIDM_HTTP = 2,
588 ELS_RNIDM_HTTPS = 3,
589 ELS_RNIDM_XML = 4, /* HTTP + XML */
590 };
591
592 enum fc_els_rnid_ipver {
593 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */
594 ELS_RNIDIP_V4 = 1, /* IPv4 */
595 ELS_RNIDIP_V6 = 2, /* IPv6 */
596 };
597
598 /*
599 * ELS RPL - Read Port List.
600 */
601 struct fc_els_rpl {
602 __u8 rpl_cmd; /* command */
603 __u8 rpl_resv[5]; /* reserved - must be zero */
604 __be16 rpl_max_size; /* maximum response size or zero */
605 __u8 rpl_resv1; /* reserved - must be zero */
606 __u8 rpl_index[3]; /* starting index */
607 };
608
609 /*
610 * Port number block in RPL response.
611 */
612 struct fc_els_pnb {
613 __be32 pnb_phys_pn; /* physical port number */
614 __u8 pnb_resv; /* reserved */
615 __u8 pnb_port_id[3]; /* port ID */
616 __be64 pnb_wwpn; /* port name */
617 };
618
619 /*
620 * RPL LS_ACC response.
621 */
622 struct fc_els_rpl_resp {
623 __u8 rpl_cmd; /* ELS_LS_ACC */
624 __u8 rpl_resv1; /* reserved - must be zero */
625 __be16 rpl_plen; /* payload length */
626 __u8 rpl_resv2; /* reserved - must be zero */
627 __u8 rpl_llen[3]; /* list length */
628 __u8 rpl_resv3; /* reserved - must be zero */
629 __u8 rpl_index[3]; /* starting index */
630 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */
631 };
632
633 /*
634 * Link Error Status Block.
635 */
636 struct fc_els_lesb {
637 __be32 lesb_link_fail; /* link failure count */
638 __be32 lesb_sync_loss; /* loss of synchronization count */
639 __be32 lesb_sig_loss; /* loss of signal count */
640 __be32 lesb_prim_err; /* primitive sequence error count */
641 __be32 lesb_inv_word; /* invalid transmission word count */
642 __be32 lesb_inv_crc; /* invalid CRC count */
643 };
644
645 /*
646 * ELS RPS - Read Port Status Block request.
647 */
648 struct fc_els_rps {
649 __u8 rps_cmd; /* command */
650 __u8 rps_resv[2]; /* reserved - must be zero */
651 __u8 rps_flag; /* flag - see below */
652 __be64 rps_port_spec; /* port selection */
653 };
654
655 enum fc_els_rps_flag {
656 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */
657 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */
658 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */
659 };
660
661 /*
662 * ELS RPS LS_ACC response.
663 */
664 struct fc_els_rps_resp {
665 __u8 rps_cmd; /* command - LS_ACC */
666 __u8 rps_resv[2]; /* reserved - must be zero */
667 __u8 rps_flag; /* flag - see below */
668 __u8 rps_resv2[2]; /* reserved */
669 __be16 rps_status; /* port status - see below */
670 struct fc_els_lesb rps_lesb; /* link error status block */
671 };
672
673 enum fc_els_rps_resp_flag {
674 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */
675 };
676
677 enum fc_els_rps_resp_status {
678 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */
679 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */
680 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */
681 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */
682 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */
683 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */
684 };
685
686 /*
687 * ELS LIRR - Link Incident Record Registration request.
688 */
689 struct fc_els_lirr {
690 __u8 lirr_cmd; /* command */
691 __u8 lirr_resv[3]; /* reserved - must be zero */
692 __u8 lirr_func; /* registration function */
693 __u8 lirr_fmt; /* FC-4 type of RLIR requested */
694 __u8 lirr_resv2[2]; /* reserved - must be zero */
695 };
696
697 enum fc_els_lirr_func {
698 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */
699 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */
700 ELS_LIRR_CLEAR = 0xff /* clear registration */
701 };
702
703 /*
704 * ELS SRL - Scan Remote Loop request.
705 */
706 struct fc_els_srl {
707 __u8 srl_cmd; /* command */
708 __u8 srl_resv[3]; /* reserved - must be zero */
709 __u8 srl_flag; /* flag - see below */
710 __u8 srl_flag_param[3]; /* flag parameter */
711 };
712
713 enum fc_els_srl_flag {
714 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */
715 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */
716 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */
717 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */
718 };
719
720 /*
721 * ELS RLS - Read Link Error Status Block request.
722 */
723 struct fc_els_rls {
724 __u8 rls_cmd; /* command */
725 __u8 rls_resv[4]; /* reserved - must be zero */
726 __u8 rls_port_id[3]; /* port ID */
727 };
728
729 /*
730 * ELS RLS LS_ACC Response.
731 */
732 struct fc_els_rls_resp {
733 __u8 rls_cmd; /* ELS_LS_ACC */
734 __u8 rls_resv[3]; /* reserved - must be zero */
735 struct fc_els_lesb rls_lesb; /* link error status block */
736 };
737
738 /*
739 * ELS RLIR - Registered Link Incident Report.
740 * This is followed by the CLIR and the CLID, described below.
741 */
742 struct fc_els_rlir {
743 __u8 rlir_cmd; /* command */
744 __u8 rlir_resv[3]; /* reserved - must be zero */
745 __u8 rlir_fmt; /* format (FC4-type if type specific) */
746 __u8 rlir_clr_len; /* common link incident record length */
747 __u8 rlir_cld_len; /* common link incident desc. length */
748 __u8 rlir_slr_len; /* spec. link incident record length */
749 };
750
751 /*
752 * CLIR - Common Link Incident Record Data. - Sent via RLIR.
753 */
754 struct fc_els_clir {
755 __be64 clir_wwpn; /* incident port name */
756 __be64 clir_wwnn; /* incident port node name */
757 __u8 clir_port_type; /* incident port type */
758 __u8 clir_port_id[3]; /* incident port ID */
759
760 __be64 clir_conn_wwpn; /* connected port name */
761 __be64 clir_conn_wwnn; /* connected node name */
762 __be64 clir_fab_name; /* fabric name */
763 __be32 clir_phys_port; /* physical port number */
764 __be32 clir_trans_id; /* transaction ID */
765 __u8 clir_resv[3]; /* reserved */
766 __u8 clir_ts_fmt; /* time stamp format */
767 __be64 clir_timestamp; /* time stamp */
768 };
769
770 /*
771 * CLIR clir_ts_fmt - time stamp format values.
772 */
773 enum fc_els_clir_ts_fmt {
774 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */
775 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */
776 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */
777 };
778
779 /*
780 * Common Link Incident Descriptor - sent via RLIR.
781 */
782 struct fc_els_clid {
783 __u8 clid_iq; /* incident qualifier flags */
784 __u8 clid_ic; /* incident code */
785 __be16 clid_epai; /* domain/area of ISL */
786 };
787
788 /*
789 * CLID incident qualifier flags.
790 */
791 enum fc_els_clid_iq {
792 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */
793 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */
794 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */
795 ELS_CLID_SEV_INFO = 0x00, /* report is informational */
796 ELS_CLID_SEV_INOP = 0x08, /* link not operational */
797 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */
798 ELS_CLID_LASER = 0x02, /* subassembly is a laser */
799 ELS_CLID_FRU = 0x01, /* format can identify a FRU */
800 };
801
802 /*
803 * CLID incident code.
804 */
805 enum fc_els_clid_ic {
806 ELS_CLID_IC_IMPL = 1, /* implicit incident */
807 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */
808 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */
809 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */
810 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */
811 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */
812 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */
813 ELS_CLID_IC_LIP = 8, /* receiving LIP */
814 };
815
816 #endif /* _FC_ELS_H_ */
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