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_ELS_H_
9 #define _FC_ELS_H_
10
11 #include <linux/types.h>
12 #include <asm/byteorder.h>
13
14 /*
15 * Fibre Channel Switch - Enhanced Link Services definitions.
16 * From T11 FC-LS Rev 1.2 June 7, 2005.
17 */
18
19 /*
20 * ELS Command codes - byte 0 of the frame payload
21 */
22 enum fc_els_cmd {
23 ELS_LS_RJT = 0x01, /* ESL reject */
24 ELS_LS_ACC = 0x02, /* ESL Accept */
25 ELS_PLOGI = 0x03, /* N_Port login */
26 ELS_FLOGI = 0x04, /* F_Port login */
27 ELS_LOGO = 0x05, /* Logout */
28 ELS_ABTX = 0x06, /* Abort exchange - obsolete */
29 ELS_RCS = 0x07, /* read connection status */
30 ELS_RES = 0x08, /* read exchange status block */
31 ELS_RSS = 0x09, /* read sequence status block */
32 ELS_RSI = 0x0a, /* read sequence initiative */
33 ELS_ESTS = 0x0b, /* establish streaming */
34 ELS_ESTC = 0x0c, /* estimate credit */
35 ELS_ADVC = 0x0d, /* advise credit */
36 ELS_RTV = 0x0e, /* read timeout value */
37 ELS_RLS = 0x0f, /* read link error status block */
38 ELS_ECHO = 0x10, /* echo */
39 ELS_TEST = 0x11, /* test */
40 ELS_RRQ = 0x12, /* reinstate recovery qualifier */
41 ELS_REC = 0x13, /* read exchange concise */
42 ELS_SRR = 0x14, /* sequence retransmission request */
43 ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */
44 ELS_EDC = 0x17, /* Exchange Diagnostic Capabilities */
45 ELS_RDP = 0x18, /* Read Diagnostic Parameters */
46 ELS_RDF = 0x19, /* Register Diagnostic Functions */
47 ELS_PRLI = 0x20, /* process login */
48 ELS_PRLO = 0x21, /* process logout */
49 ELS_SCN = 0x22, /* state change notification */
50 ELS_TPLS = 0x23, /* test process login state */
51 ELS_TPRLO = 0x24, /* third party process logout */
52 ELS_LCLM = 0x25, /* login control list mgmt (obs) */
53 ELS_GAID = 0x30, /* get alias_ID */
54 ELS_FACT = 0x31, /* fabric activate alias_id */
55 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */
56 ELS_NACT = 0x33, /* N-port activate alias_id */
57 ELS_NDACT = 0x34, /* N-port deactivate alias_id */
58 ELS_QOSR = 0x40, /* quality of service request */
59 ELS_RVCS = 0x41, /* read virtual circuit status */
60 ELS_PDISC = 0x50, /* discover N_port service params */
61 ELS_FDISC = 0x51, /* discover F_port service params */
62 ELS_ADISC = 0x52, /* discover address */
63 ELS_RNC = 0x53, /* report node cap (obs) */
64 ELS_FARP_REQ = 0x54, /* FC ARP request */
65 ELS_FARP_REPL = 0x55, /* FC ARP reply */
66 ELS_RPS = 0x56, /* read port status block */
67 ELS_RPL = 0x57, /* read port list */
68 ELS_RPBC = 0x58, /* read port buffer condition */
69 ELS_FAN = 0x60, /* fabric address notification */
70 ELS_RSCN = 0x61, /* registered state change notification */
71 ELS_SCR = 0x62, /* state change registration */
72 ELS_RNFT = 0x63, /* report node FC-4 types */
73 ELS_CSR = 0x68, /* clock synch. request */
74 ELS_CSU = 0x69, /* clock synch. update */
75 ELS_LINIT = 0x70, /* loop initialize */
76 ELS_LSTS = 0x72, /* loop status */
77 ELS_RNID = 0x78, /* request node ID data */
78 ELS_RLIR = 0x79, /* registered link incident report */
79 ELS_LIRR = 0x7a, /* link incident record registration */
80 ELS_SRL = 0x7b, /* scan remote loop */
81 ELS_SBRP = 0x7c, /* set bit-error reporting params */
82 ELS_RPSC = 0x7d, /* report speed capabilities */
83 ELS_QSA = 0x7e, /* query security attributes */
84 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */
85 ELS_LKA = 0x80, /* link keep-alive */
86 ELS_AUTH_ELS = 0x90, /* authentication ELS */
87 };
88
89 /*
90 * Initializer useful for decoding table.
91 * Please keep this in sync with the above definitions.
92 */
93 #define FC_ELS_CMDS_INIT { \
94 [ELS_LS_RJT] = "LS_RJT", \
95 [ELS_LS_ACC] = "LS_ACC", \
96 [ELS_PLOGI] = "PLOGI", \
97 [ELS_FLOGI] = "FLOGI", \
98 [ELS_LOGO] = "LOGO", \
99 [ELS_ABTX] = "ABTX", \
100 [ELS_RCS] = "RCS", \
101 [ELS_RES] = "RES", \
102 [ELS_RSS] = "RSS", \
103 [ELS_RSI] = "RSI", \
104 [ELS_ESTS] = "ESTS", \
105 [ELS_ESTC] = "ESTC", \
106 [ELS_ADVC] = "ADVC", \
107 [ELS_RTV] = "RTV", \
108 [ELS_RLS] = "RLS", \
109 [ELS_ECHO] = "ECHO", \
110 [ELS_TEST] = "TEST", \
111 [ELS_RRQ] = "RRQ", \
112 [ELS_REC] = "REC", \
113 [ELS_SRR] = "SRR", \
114 [ELS_FPIN] = "FPIN", \
115 [ELS_EDC] = "EDC", \
116 [ELS_RDP] = "RDP", \
117 [ELS_RDF] = "RDF", \
118 [ELS_PRLI] = "PRLI", \
119 [ELS_PRLO] = "PRLO", \
120 [ELS_SCN] = "SCN", \
121 [ELS_TPLS] = "TPLS", \
122 [ELS_TPRLO] = "TPRLO", \
123 [ELS_LCLM] = "LCLM", \
124 [ELS_GAID] = "GAID", \
125 [ELS_FACT] = "FACT", \
126 [ELS_FDACDT] = "FDACDT", \
127 [ELS_NACT] = "NACT", \
128 [ELS_NDACT] = "NDACT", \
129 [ELS_QOSR] = "QOSR", \
130 [ELS_RVCS] = "RVCS", \
131 [ELS_PDISC] = "PDISC", \
132 [ELS_FDISC] = "FDISC", \
133 [ELS_ADISC] = "ADISC", \
134 [ELS_RNC] = "RNC", \
135 [ELS_FARP_REQ] = "FARP_REQ", \
136 [ELS_FARP_REPL] = "FARP_REPL", \
137 [ELS_RPS] = "RPS", \
138 [ELS_RPL] = "RPL", \
139 [ELS_RPBC] = "RPBC", \
140 [ELS_FAN] = "FAN", \
141 [ELS_RSCN] = "RSCN", \
142 [ELS_SCR] = "SCR", \
143 [ELS_RNFT] = "RNFT", \
144 [ELS_CSR] = "CSR", \
145 [ELS_CSU] = "CSU", \
146 [ELS_LINIT] = "LINIT", \
147 [ELS_LSTS] = "LSTS", \
148 [ELS_RNID] = "RNID", \
149 [ELS_RLIR] = "RLIR", \
150 [ELS_LIRR] = "LIRR", \
151 [ELS_SRL] = "SRL", \
152 [ELS_SBRP] = "SBRP", \
153 [ELS_RPSC] = "RPSC", \
154 [ELS_QSA] = "QSA", \
155 [ELS_EVFP] = "EVFP", \
156 [ELS_LKA] = "LKA", \
157 [ELS_AUTH_ELS] = "AUTH_ELS", \
158 }
159
160 /*
161 * LS_ACC payload.
162 */
163 struct fc_els_ls_acc {
164 __u8 la_cmd; /* command code ELS_LS_ACC */
165 __u8 la_resv[3]; /* reserved */
166 };
167
168 /*
169 * ELS reject payload.
170 */
171 struct fc_els_ls_rjt {
172 __u8 er_cmd; /* command code ELS_LS_RJT */
173 __u8 er_resv[4]; /* reserved must be zero */
174 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */
175 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */
176 __u8 er_vendor; /* vendor specific code */
177 };
178
179 /*
180 * ELS reject reason codes (er_reason).
181 */
182 enum fc_els_rjt_reason {
183 ELS_RJT_NONE = 0, /* no reject - not to be sent */
184 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */
185 ELS_RJT_LOGIC = 0x03, /* logical error */
186 ELS_RJT_BUSY = 0x05, /* logical busy */
187 ELS_RJT_PROT = 0x07, /* protocol error */
188 ELS_RJT_UNAB = 0x09, /* unable to perform command request */
189 ELS_RJT_UNSUP = 0x0b, /* command not supported */
190 ELS_RJT_INPROG = 0x0e, /* command already in progress */
191 ELS_RJT_FIP = 0x20, /* FIP error */
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 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */
214 /* TBD - above definitions incomplete */
215 };
216
217 /*
218 * Link Service TLV Descriptor Tag Values
219 */
220 enum fc_ls_tlv_dtag {
221 ELS_DTAG_LS_REQ_INFO = 0x00000001,
222 /* Link Service Request Information Descriptor */
223 ELS_DTAG_LNK_FAULT_CAP = 0x0001000D,
224 /* Link Fault Capability Descriptor */
225 ELS_DTAG_CG_SIGNAL_CAP = 0x0001000F,
226 /* Congestion Signaling Capability Descriptor */
227 ELS_DTAG_LNK_INTEGRITY = 0x00020001,
228 /* Link Integrity Notification Descriptor */
229 ELS_DTAG_DELIVERY = 0x00020002,
230 /* Delivery Notification Descriptor */
231 ELS_DTAG_PEER_CONGEST = 0x00020003,
232 /* Peer Congestion Notification Descriptor */
233 ELS_DTAG_CONGESTION = 0x00020004,
234 /* Congestion Notification Descriptor */
235 ELS_DTAG_FPIN_REGISTER = 0x00030001,
236 /* FPIN Registration Descriptor */
237 };
238
239 /*
240 * Initializer useful for decoding table.
241 * Please keep this in sync with the above definitions.
242 */
243 #define FC_LS_TLV_DTAG_INIT { \
244 { ELS_DTAG_LS_REQ_INFO, "Link Service Request Information" }, \
245 { ELS_DTAG_LNK_FAULT_CAP, "Link Fault Capability" }, \
246 { ELS_DTAG_CG_SIGNAL_CAP, "Congestion Signaling Capability" }, \
247 { ELS_DTAG_LNK_INTEGRITY, "Link Integrity Notification" }, \
248 { ELS_DTAG_DELIVERY, "Delivery Notification Present" }, \
249 { ELS_DTAG_PEER_CONGEST, "Peer Congestion Notification" }, \
250 { ELS_DTAG_CONGESTION, "Congestion Notification" }, \
251 { ELS_DTAG_FPIN_REGISTER, "FPIN Registration" }, \
252 }
253
254
255 /*
256 * Generic Link Service TLV Descriptor format
257 *
258 * This structure, as it defines no payload, will also be referred to
259 * as the "tlv header" - which contains the tag and len fields.
260 */
261 struct fc_tlv_desc {
262 __be32 desc_tag; /* Notification Descriptor Tag */
263 __be32 desc_len; /* Length of Descriptor (in bytes).
264 * Size of descriptor excluding
265 * desc_tag and desc_len fields.
266 */
267 __u8 desc_value[]; /* Descriptor Value */
268 };
269
270 /* Descriptor tag and len fields are considered the mandatory header
271 * for a descriptor
272 */
273 #define FC_TLV_DESC_HDR_SZ sizeof(struct fc_tlv_desc)
274
275 /*
276 * Macro, used when initializing payloads, to return the descriptor length.
277 * Length is size of descriptor minus the tag and len fields.
278 */
279 #define FC_TLV_DESC_LENGTH_FROM_SZ(desc) \
280 (sizeof(desc) - FC_TLV_DESC_HDR_SZ)
281
282 /* Macro, used on received payloads, to return the descriptor length */
283 #define FC_TLV_DESC_SZ_FROM_LENGTH(tlv) \
284 (__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ)
285
286 /*
287 * This helper is used to walk descriptors in a descriptor list.
288 * Given the address of the current descriptor, which minimally contains a
289 * tag and len field, calculate the address of the next descriptor based
290 * on the len field.
291 */
292 static inline void *fc_tlv_next_desc(void *desc)
293 {
294 struct fc_tlv_desc *tlv = desc;
295
296 return (desc + FC_TLV_DESC_SZ_FROM_LENGTH(tlv));
297 }
298
299
300 /*
301 * Link Service Request Information Descriptor
302 */
303 struct fc_els_lsri_desc {
304 __be32 desc_tag; /* descriptor tag (0x0000 0001) */
305 __be32 desc_len; /* Length of Descriptor (in bytes) (4).
306 * Size of descriptor excluding
307 * desc_tag and desc_len fields.
308 */
309 struct {
310 __u8 cmd; /* ELS cmd byte */
311 __u8 bytes[3]; /* bytes 1..3 */
312 } rqst_w0; /* Request word 0 */
313 };
314
315
316 /*
317 * Common service parameters (N ports).
318 */
319 struct fc_els_csp {
320 __u8 sp_hi_ver; /* highest version supported (obs.) */
321 __u8 sp_lo_ver; /* highest version supported (obs.) */
322 __be16 sp_bb_cred; /* buffer-to-buffer credits */
323 __be16 sp_features; /* common feature flags */
324 __be16 sp_bb_data; /* b-b state number and data field sz */
325 union {
326 struct {
327 __be16 _sp_tot_seq; /* total concurrent sequences */
328 __be16 _sp_rel_off; /* rel. offset by info cat */
329 } sp_plogi;
330 struct {
331 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */
332 } sp_flogi_acc;
333 } sp_u;
334 __be32 sp_e_d_tov; /* error detect timeout value */
335 };
336 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq
337 #define sp_rel_off sp_u.sp_plogi._sp_rel_off
338 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov
339
340 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */
341
342 /*
343 * Minimum and maximum values for max data field size in service parameters.
344 */
345 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD
346 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD
347
348 /*
349 * sp_features
350 */
351 #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */
352 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */
353 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */
354 #define FC_SP_FT_RAND 0x4000 /* random relative offset */
355 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */
356 #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */
357 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */
358 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */
359 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */
360 #define FC_SP_FT_MCAST 0x0200 /* multicast */
361 #define FC_SP_FT_BCAST 0x0100 /* broadcast */
362 #define FC_SP_FT_HUNT 0x0080 /* hunt group */
363 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */
364 #define FC_SP_FT_SEC 0x0020 /* reserved for security */
365 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */
366 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */
367 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */
368 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */
369 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */
370
371 /*
372 * Class-specific service parameters.
373 */
374 struct fc_els_cssp {
375 __be16 cp_class; /* class flags */
376 __be16 cp_init; /* initiator flags */
377 __be16 cp_recip; /* recipient flags */
378 __be16 cp_rdfs; /* receive data field size */
379 __be16 cp_con_seq; /* concurrent sequences */
380 __be16 cp_ee_cred; /* N-port end-to-end credit */
381 __u8 cp_resv1; /* reserved */
382 __u8 cp_open_seq; /* open sequences per exchange */
383 __u8 _cp_resv2[2]; /* reserved */
384 };
385
386 /*
387 * cp_class flags.
388 */
389 #define FC_CPC_VALID 0x8000 /* class valid */
390 #define FC_CPC_IMIX 0x4000 /* intermix mode */
391 #define FC_CPC_SEQ 0x0800 /* sequential delivery */
392 #define FC_CPC_CAMP 0x0200 /* camp-on */
393 #define FC_CPC_PRI 0x0080 /* priority */
394
395 /*
396 * cp_init flags.
397 * (TBD: not all flags defined here).
398 */
399 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */
400
401 /*
402 * cp_recip flags.
403 */
404 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */
405
406 /*
407 * NFC_ELS_FLOGI: Fabric login request.
408 * NFC_ELS_PLOGI: Port login request (same format).
409 */
410 struct fc_els_flogi {
411 __u8 fl_cmd; /* command */
412 __u8 _fl_resvd[3]; /* must be zero */
413 struct fc_els_csp fl_csp; /* common service parameters */
414 __be64 fl_wwpn; /* port name */
415 __be64 fl_wwnn; /* node name */
416 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */
417 __u8 fl_vend[16]; /* vendor version level */
418 } __attribute__((__packed__));
419
420 /*
421 * Process login service parameter page.
422 */
423 struct fc_els_spp {
424 __u8 spp_type; /* type code or common service params */
425 __u8 spp_type_ext; /* type code extension */
426 __u8 spp_flags;
427 __u8 _spp_resvd;
428 __be32 spp_orig_pa; /* originator process associator */
429 __be32 spp_resp_pa; /* responder process associator */
430 __be32 spp_params; /* service parameters */
431 };
432
433 /*
434 * spp_flags.
435 */
436 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */
437 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */
438 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */
439 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */
440
441 /*
442 * SPP response code in spp_flags - lower 4 bits.
443 */
444 enum fc_els_spp_resp {
445 FC_SPP_RESP_ACK = 1, /* request executed */
446 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */
447 FC_SPP_RESP_INIT = 3, /* initialization not complete */
448 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */
449 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */
450 FC_SPP_RESP_COND = 6, /* request completed conditionally */
451 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */
452 FC_SPP_RESP_INVL = 8, /* SPP is invalid */
453 };
454
455 /*
456 * ELS_RRQ - Reinstate Recovery Qualifier
457 */
458 struct fc_els_rrq {
459 __u8 rrq_cmd; /* command (0x12) */
460 __u8 rrq_zero[3]; /* specified as zero - part of cmd */
461 __u8 rrq_resvd; /* reserved */
462 __u8 rrq_s_id[3]; /* originator FID */
463 __be16 rrq_ox_id; /* originator exchange ID */
464 __be16 rrq_rx_id; /* responders exchange ID */
465 };
466
467 /*
468 * ELS_REC - Read exchange concise.
469 */
470 struct fc_els_rec {
471 __u8 rec_cmd; /* command (0x13) */
472 __u8 rec_zero[3]; /* specified as zero - part of cmd */
473 __u8 rec_resvd; /* reserved */
474 __u8 rec_s_id[3]; /* originator FID */
475 __be16 rec_ox_id; /* originator exchange ID */
476 __be16 rec_rx_id; /* responders exchange ID */
477 };
478
479 /*
480 * ELS_REC LS_ACC payload.
481 */
482 struct fc_els_rec_acc {
483 __u8 reca_cmd; /* accept (0x02) */
484 __u8 reca_zero[3]; /* specified as zero - part of cmd */
485 __be16 reca_ox_id; /* originator exchange ID */
486 __be16 reca_rx_id; /* responders exchange ID */
487 __u8 reca_resvd1; /* reserved */
488 __u8 reca_ofid[3]; /* originator FID */
489 __u8 reca_resvd2; /* reserved */
490 __u8 reca_rfid[3]; /* responder FID */
491 __be32 reca_fc4value; /* FC4 value */
492 __be32 reca_e_stat; /* ESB (exchange status block) status */
493 };
494
495 /*
496 * ELS_PRLI - Process login request and response.
497 */
498 struct fc_els_prli {
499 __u8 prli_cmd; /* command */
500 __u8 prli_spp_len; /* length of each serv. parm. page */
501 __be16 prli_len; /* length of entire payload */
502 /* service parameter pages follow */
503 };
504
505 /*
506 * ELS_PRLO - Process logout request and response.
507 */
508 struct fc_els_prlo {
509 __u8 prlo_cmd; /* command */
510 __u8 prlo_obs; /* obsolete, but shall be set to 10h */
511 __be16 prlo_len; /* payload length */
512 };
513
514 /*
515 * ELS_ADISC payload
516 */
517 struct fc_els_adisc {
518 __u8 adisc_cmd;
519 __u8 adisc_resv[3];
520 __u8 adisc_resv1;
521 __u8 adisc_hard_addr[3];
522 __be64 adisc_wwpn;
523 __be64 adisc_wwnn;
524 __u8 adisc_resv2;
525 __u8 adisc_port_id[3];
526 } __attribute__((__packed__));
527
528 /*
529 * ELS_LOGO - process or fabric logout.
530 */
531 struct fc_els_logo {
532 __u8 fl_cmd; /* command code */
533 __u8 fl_zero[3]; /* specified as zero - part of cmd */
534 __u8 fl_resvd; /* reserved */
535 __u8 fl_n_port_id[3];/* N port ID */
536 __be64 fl_n_port_wwn; /* port name */
537 };
538
539 /*
540 * ELS_RTV - read timeout value.
541 */
542 struct fc_els_rtv {
543 __u8 rtv_cmd; /* command code 0x0e */
544 __u8 rtv_zero[3]; /* specified as zero - part of cmd */
545 };
546
547 /*
548 * LS_ACC for ELS_RTV - read timeout value.
549 */
550 struct fc_els_rtv_acc {
551 __u8 rtv_cmd; /* command code 0x02 */
552 __u8 rtv_zero[3]; /* specified as zero - part of cmd */
553 __be32 rtv_r_a_tov; /* resource allocation timeout value */
554 __be32 rtv_e_d_tov; /* error detection timeout value */
555 __be32 rtv_toq; /* timeout qualifier (see below) */
556 };
557
558 /*
559 * rtv_toq bits.
560 */
561 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */
562 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */
563
564 /*
565 * ELS_SCR - state change registration payload.
566 */
567 struct fc_els_scr {
568 __u8 scr_cmd; /* command code */
569 __u8 scr_resv[6]; /* reserved */
570 __u8 scr_reg_func; /* registration function (see below) */
571 };
572
573 enum fc_els_scr_func {
574 ELS_SCRF_FAB = 1, /* fabric-detected registration */
575 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */
576 ELS_SCRF_FULL = 3, /* full registration */
577 ELS_SCRF_CLEAR = 255, /* remove any current registrations */
578 };
579
580 /*
581 * ELS_RSCN - registered state change notification payload.
582 */
583 struct fc_els_rscn {
584 __u8 rscn_cmd; /* RSCN opcode (0x61) */
585 __u8 rscn_page_len; /* page length (4) */
586 __be16 rscn_plen; /* payload length including this word */
587
588 /* followed by 4-byte generic affected Port_ID pages */
589 };
590
591 struct fc_els_rscn_page {
592 __u8 rscn_page_flags; /* event and address format */
593 __u8 rscn_fid[3]; /* fabric ID */
594 };
595
596 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */
597 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */
598 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */
599 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */
600
601 enum fc_els_rscn_ev_qual {
602 ELS_EV_QUAL_NONE = 0, /* unspecified */
603 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */
604 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */
605 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */
606 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */
607 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */
608 };
609
610 enum fc_els_rscn_addr_fmt {
611 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */
612 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */
613 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */
614 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */
615 };
616
617 /*
618 * ELS_RNID - request Node ID.
619 */
620 struct fc_els_rnid {
621 __u8 rnid_cmd; /* RNID opcode (0x78) */
622 __u8 rnid_resv[3]; /* reserved */
623 __u8 rnid_fmt; /* data format */
624 __u8 rnid_resv2[3]; /* reserved */
625 };
626
627 /*
628 * Node Identification Data formats (rnid_fmt)
629 */
630 enum fc_els_rnid_fmt {
631 ELS_RNIDF_NONE = 0, /* no specific identification data */
632 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */
633 };
634
635 /*
636 * ELS_RNID response.
637 */
638 struct fc_els_rnid_resp {
639 __u8 rnid_cmd; /* response code (LS_ACC) */
640 __u8 rnid_resv[3]; /* reserved */
641 __u8 rnid_fmt; /* data format */
642 __u8 rnid_cid_len; /* common ID data length */
643 __u8 rnid_resv2; /* reserved */
644 __u8 rnid_sid_len; /* specific ID data length */
645 };
646
647 struct fc_els_rnid_cid {
648 __be64 rnid_wwpn; /* N port name */
649 __be64 rnid_wwnn; /* node name */
650 };
651
652 struct fc_els_rnid_gen {
653 __u8 rnid_vend_id[16]; /* vendor-unique ID */
654 __be32 rnid_atype; /* associated type (see below) */
655 __be32 rnid_phys_port; /* physical port number */
656 __be32 rnid_att_nodes; /* number of attached nodes */
657 __u8 rnid_node_mgmt; /* node management (see below) */
658 __u8 rnid_ip_ver; /* IP version (see below) */
659 __be16 rnid_prot_port; /* UDP / TCP port number */
660 __be32 rnid_ip_addr[4]; /* IP address */
661 __u8 rnid_resvd[2]; /* reserved */
662 __be16 rnid_vend_spec; /* vendor-specific field */
663 };
664
665 enum fc_els_rnid_atype {
666 ELS_RNIDA_UNK = 0x01, /* unknown */
667 ELS_RNIDA_OTHER = 0x02, /* none of the following */
668 ELS_RNIDA_HUB = 0x03,
669 ELS_RNIDA_SWITCH = 0x04,
670 ELS_RNIDA_GATEWAY = 0x05,
671 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */
672 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */
673 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */
674 ELS_RNIDA_STORAGE = 0x09,
675 ELS_RNIDA_HOST = 0x0a,
676 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */
677 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */
678 ELS_RNIDA_NAS = 0x11, /* NAS server */
679 ELS_RNIDA_BRIDGE = 0x12, /* bridge */
680 ELS_RNIDA_VIRT = 0x13, /* virtualization device */
681 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */
682 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */
683 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */
684 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */
685 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */
686 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */
687 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */
688 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */
689 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */
690 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */
691 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */
692 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */
693 };
694
695 enum fc_els_rnid_mgmt {
696 ELS_RNIDM_SNMP = 0,
697 ELS_RNIDM_TELNET = 1,
698 ELS_RNIDM_HTTP = 2,
699 ELS_RNIDM_HTTPS = 3,
700 ELS_RNIDM_XML = 4, /* HTTP + XML */
701 };
702
703 enum fc_els_rnid_ipver {
704 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */
705 ELS_RNIDIP_V4 = 1, /* IPv4 */
706 ELS_RNIDIP_V6 = 2, /* IPv6 */
707 };
708
709 /*
710 * ELS RPL - Read Port List.
711 */
712 struct fc_els_rpl {
713 __u8 rpl_cmd; /* command */
714 __u8 rpl_resv[5]; /* reserved - must be zero */
715 __be16 rpl_max_size; /* maximum response size or zero */
716 __u8 rpl_resv1; /* reserved - must be zero */
717 __u8 rpl_index[3]; /* starting index */
718 };
719
720 /*
721 * Port number block in RPL response.
722 */
723 struct fc_els_pnb {
724 __be32 pnb_phys_pn; /* physical port number */
725 __u8 pnb_resv; /* reserved */
726 __u8 pnb_port_id[3]; /* port ID */
727 __be64 pnb_wwpn; /* port name */
728 };
729
730 /*
731 * RPL LS_ACC response.
732 */
733 struct fc_els_rpl_resp {
734 __u8 rpl_cmd; /* ELS_LS_ACC */
735 __u8 rpl_resv1; /* reserved - must be zero */
736 __be16 rpl_plen; /* payload length */
737 __u8 rpl_resv2; /* reserved - must be zero */
738 __u8 rpl_llen[3]; /* list length */
739 __u8 rpl_resv3; /* reserved - must be zero */
740 __u8 rpl_index[3]; /* starting index */
741 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */
742 };
743
744 /*
745 * Link Error Status Block.
746 */
747 struct fc_els_lesb {
748 __be32 lesb_link_fail; /* link failure count */
749 __be32 lesb_sync_loss; /* loss of synchronization count */
750 __be32 lesb_sig_loss; /* loss of signal count */
751 __be32 lesb_prim_err; /* primitive sequence error count */
752 __be32 lesb_inv_word; /* invalid transmission word count */
753 __be32 lesb_inv_crc; /* invalid CRC count */
754 };
755
756 /*
757 * ELS RPS - Read Port Status Block request.
758 */
759 struct fc_els_rps {
760 __u8 rps_cmd; /* command */
761 __u8 rps_resv[2]; /* reserved - must be zero */
762 __u8 rps_flag; /* flag - see below */
763 __be64 rps_port_spec; /* port selection */
764 };
765
766 enum fc_els_rps_flag {
767 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */
768 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */
769 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */
770 };
771
772 /*
773 * ELS RPS LS_ACC response.
774 */
775 struct fc_els_rps_resp {
776 __u8 rps_cmd; /* command - LS_ACC */
777 __u8 rps_resv[2]; /* reserved - must be zero */
778 __u8 rps_flag; /* flag - see below */
779 __u8 rps_resv2[2]; /* reserved */
780 __be16 rps_status; /* port status - see below */
781 struct fc_els_lesb rps_lesb; /* link error status block */
782 };
783
784 enum fc_els_rps_resp_flag {
785 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */
786 };
787
788 enum fc_els_rps_resp_status {
789 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */
790 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */
791 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */
792 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */
793 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */
794 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */
795 };
796
797 /*
798 * ELS LIRR - Link Incident Record Registration request.
799 */
800 struct fc_els_lirr {
801 __u8 lirr_cmd; /* command */
802 __u8 lirr_resv[3]; /* reserved - must be zero */
803 __u8 lirr_func; /* registration function */
804 __u8 lirr_fmt; /* FC-4 type of RLIR requested */
805 __u8 lirr_resv2[2]; /* reserved - must be zero */
806 };
807
808 enum fc_els_lirr_func {
809 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */
810 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */
811 ELS_LIRR_CLEAR = 0xff /* clear registration */
812 };
813
814 /*
815 * ELS SRL - Scan Remote Loop request.
816 */
817 struct fc_els_srl {
818 __u8 srl_cmd; /* command */
819 __u8 srl_resv[3]; /* reserved - must be zero */
820 __u8 srl_flag; /* flag - see below */
821 __u8 srl_flag_param[3]; /* flag parameter */
822 };
823
824 enum fc_els_srl_flag {
825 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */
826 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */
827 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */
828 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */
829 };
830
831 /*
832 * ELS RLS - Read Link Error Status Block request.
833 */
834 struct fc_els_rls {
835 __u8 rls_cmd; /* command */
836 __u8 rls_resv[4]; /* reserved - must be zero */
837 __u8 rls_port_id[3]; /* port ID */
838 };
839
840 /*
841 * ELS RLS LS_ACC Response.
842 */
843 struct fc_els_rls_resp {
844 __u8 rls_cmd; /* ELS_LS_ACC */
845 __u8 rls_resv[3]; /* reserved - must be zero */
846 struct fc_els_lesb rls_lesb; /* link error status block */
847 };
848
849 /*
850 * ELS RLIR - Registered Link Incident Report.
851 * This is followed by the CLIR and the CLID, described below.
852 */
853 struct fc_els_rlir {
854 __u8 rlir_cmd; /* command */
855 __u8 rlir_resv[3]; /* reserved - must be zero */
856 __u8 rlir_fmt; /* format (FC4-type if type specific) */
857 __u8 rlir_clr_len; /* common link incident record length */
858 __u8 rlir_cld_len; /* common link incident desc. length */
859 __u8 rlir_slr_len; /* spec. link incident record length */
860 };
861
862 /*
863 * CLIR - Common Link Incident Record Data. - Sent via RLIR.
864 */
865 struct fc_els_clir {
866 __be64 clir_wwpn; /* incident port name */
867 __be64 clir_wwnn; /* incident port node name */
868 __u8 clir_port_type; /* incident port type */
869 __u8 clir_port_id[3]; /* incident port ID */
870
871 __be64 clir_conn_wwpn; /* connected port name */
872 __be64 clir_conn_wwnn; /* connected node name */
873 __be64 clir_fab_name; /* fabric name */
874 __be32 clir_phys_port; /* physical port number */
875 __be32 clir_trans_id; /* transaction ID */
876 __u8 clir_resv[3]; /* reserved */
877 __u8 clir_ts_fmt; /* time stamp format */
878 __be64 clir_timestamp; /* time stamp */
879 };
880
881 /*
882 * CLIR clir_ts_fmt - time stamp format values.
883 */
884 enum fc_els_clir_ts_fmt {
885 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */
886 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */
887 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */
888 };
889
890 /*
891 * Common Link Incident Descriptor - sent via RLIR.
892 */
893 struct fc_els_clid {
894 __u8 clid_iq; /* incident qualifier flags */
895 __u8 clid_ic; /* incident code */
896 __be16 clid_epai; /* domain/area of ISL */
897 };
898
899 /*
900 * CLID incident qualifier flags.
901 */
902 enum fc_els_clid_iq {
903 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */
904 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */
905 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */
906 ELS_CLID_SEV_INFO = 0x00, /* report is informational */
907 ELS_CLID_SEV_INOP = 0x08, /* link not operational */
908 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */
909 ELS_CLID_LASER = 0x02, /* subassembly is a laser */
910 ELS_CLID_FRU = 0x01, /* format can identify a FRU */
911 };
912
913 /*
914 * CLID incident code.
915 */
916 enum fc_els_clid_ic {
917 ELS_CLID_IC_IMPL = 1, /* implicit incident */
918 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */
919 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */
920 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */
921 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */
922 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */
923 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */
924 ELS_CLID_IC_LIP = 8, /* receiving LIP */
925 };
926
927 /*
928 * Link Integrity event types
929 */
930 enum fc_fpin_li_event_types {
931 FPIN_LI_UNKNOWN = 0x0,
932 FPIN_LI_LINK_FAILURE = 0x1,
933 FPIN_LI_LOSS_OF_SYNC = 0x2,
934 FPIN_LI_LOSS_OF_SIG = 0x3,
935 FPIN_LI_PRIM_SEQ_ERR = 0x4,
936 FPIN_LI_INVALID_TX_WD = 0x5,
937 FPIN_LI_INVALID_CRC = 0x6,
938 FPIN_LI_DEVICE_SPEC = 0xF,
939 };
940
941 /*
942 * Initializer useful for decoding table.
943 * Please keep this in sync with the above definitions.
944 */
945 #define FC_FPIN_LI_EVT_TYPES_INIT { \
946 { FPIN_LI_UNKNOWN, "Unknown" }, \
947 { FPIN_LI_LINK_FAILURE, "Link Failure" }, \
948 { FPIN_LI_LOSS_OF_SYNC, "Loss of Synchronization" }, \
949 { FPIN_LI_LOSS_OF_SIG, "Loss of Signal" }, \
950 { FPIN_LI_PRIM_SEQ_ERR, "Primitive Sequence Protocol Error" }, \
951 { FPIN_LI_INVALID_TX_WD, "Invalid Transmission Word" }, \
952 { FPIN_LI_INVALID_CRC, "Invalid CRC" }, \
953 { FPIN_LI_DEVICE_SPEC, "Device Specific" }, \
954 }
955
956 /*
957 * Delivery event types
958 */
959 enum fc_fpin_deli_event_types {
960 FPIN_DELI_UNKNOWN = 0x0,
961 FPIN_DELI_TIMEOUT = 0x1,
962 FPIN_DELI_UNABLE_TO_ROUTE = 0x2,
963 FPIN_DELI_DEVICE_SPEC = 0xF,
964 };
965
966 /*
967 * Initializer useful for decoding table.
968 * Please keep this in sync with the above definitions.
969 */
970 #define FC_FPIN_DELI_EVT_TYPES_INIT { \
971 { FPIN_DELI_UNKNOWN, "Unknown" }, \
972 { FPIN_DELI_TIMEOUT, "Timeout" }, \
973 { FPIN_DELI_UNABLE_TO_ROUTE, "Unable to Route" }, \
974 { FPIN_DELI_DEVICE_SPEC, "Device Specific" }, \
975 }
976
977 /*
978 * Congestion event types
979 */
980 enum fc_fpin_congn_event_types {
981 FPIN_CONGN_CLEAR = 0x0,
982 FPIN_CONGN_LOST_CREDIT = 0x1,
983 FPIN_CONGN_CREDIT_STALL = 0x2,
984 FPIN_CONGN_OVERSUBSCRIPTION = 0x3,
985 FPIN_CONGN_DEVICE_SPEC = 0xF,
986 };
987
988 /*
989 * Initializer useful for decoding table.
990 * Please keep this in sync with the above definitions.
991 */
992 #define FC_FPIN_CONGN_EVT_TYPES_INIT { \
993 { FPIN_CONGN_CLEAR, "Clear" }, \
994 { FPIN_CONGN_LOST_CREDIT, "Lost Credit" }, \
995 { FPIN_CONGN_CREDIT_STALL, "Credit Stall" }, \
996 { FPIN_CONGN_OVERSUBSCRIPTION, "Oversubscription" }, \
997 { FPIN_CONGN_DEVICE_SPEC, "Device Specific" }, \
998 }
999
1000 enum fc_fpin_congn_severity_types {
1001 FPIN_CONGN_SEVERITY_WARNING = 0xF1,
1002 FPIN_CONGN_SEVERITY_ERROR = 0xF7,
1003 };
1004
1005 /*
1006 * Link Integrity Notification Descriptor
1007 */
1008 struct fc_fn_li_desc {
1009 __be32 desc_tag; /* Descriptor Tag (0x00020001) */
1010 __be32 desc_len; /* Length of Descriptor (in bytes).
1011 * Size of descriptor excluding
1012 * desc_tag and desc_len fields.
1013 */
1014 __be64 detecting_wwpn; /* Port Name that detected event */
1015 __be64 attached_wwpn; /* Port Name of device attached to
1016 * detecting Port Name
1017 */
1018 __be16 event_type; /* see enum fc_fpin_li_event_types */
1019 __be16 event_modifier; /* Implementation specific value
1020 * describing the event type
1021 */
1022 __be32 event_threshold;/* duration in ms of the link
1023 * integrity detection cycle
1024 */
1025 __be32 event_count; /* minimum number of event
1026 * occurrences during the event
1027 * threshold to caause the LI event
1028 */
1029 __be32 pname_count; /* number of portname_list elements */
1030 __be64 pname_list[]; /* list of N_Port_Names accessible
1031 * through the attached port
1032 */
1033 };
1034
1035 /*
1036 * Delivery Notification Descriptor
1037 */
1038 struct fc_fn_deli_desc {
1039 __be32 desc_tag; /* Descriptor Tag (0x00020002) */
1040 __be32 desc_len; /* Length of Descriptor (in bytes).
1041 * Size of descriptor excluding
1042 * desc_tag and desc_len fields.
1043 */
1044 __be64 detecting_wwpn; /* Port Name that detected event */
1045 __be64 attached_wwpn; /* Port Name of device attached to
1046 * detecting Port Name
1047 */
1048 __be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */
1049 };
1050
1051 /*
1052 * Peer Congestion Notification Descriptor
1053 */
1054 struct fc_fn_peer_congn_desc {
1055 __be32 desc_tag; /* Descriptor Tag (0x00020003) */
1056 __be32 desc_len; /* Length of Descriptor (in bytes).
1057 * Size of descriptor excluding
1058 * desc_tag and desc_len fields.
1059 */
1060 __be64 detecting_wwpn; /* Port Name that detected event */
1061 __be64 attached_wwpn; /* Port Name of device attached to
1062 * detecting Port Name
1063 */
1064 __be16 event_type; /* see enum fc_fpin_congn_event_types */
1065 __be16 event_modifier; /* Implementation specific value
1066 * describing the event type
1067 */
1068 __be32 event_period; /* duration (ms) of the detected
1069 * congestion event
1070 */
1071 __be32 pname_count; /* number of portname_list elements */
1072 __be64 pname_list[]; /* list of N_Port_Names accessible
1073 * through the attached port
1074 */
1075 };
1076
1077 /*
1078 * Congestion Notification Descriptor
1079 */
1080 struct fc_fn_congn_desc {
1081 __be32 desc_tag; /* Descriptor Tag (0x00020004) */
1082 __be32 desc_len; /* Length of Descriptor (in bytes).
1083 * Size of descriptor excluding
1084 * desc_tag and desc_len fields.
1085 */
1086 __be16 event_type; /* see enum fc_fpin_congn_event_types */
1087 __be16 event_modifier; /* Implementation specific value
1088 * describing the event type
1089 */
1090 __be32 event_period; /* duration (ms) of the detected
1091 * congestion event
1092 */
1093 __u8 severity; /* command */
1094 __u8 resv[3]; /* reserved - must be zero */
1095 };
1096
1097 /*
1098 * ELS_FPIN - Fabric Performance Impact Notification
1099 */
1100 struct fc_els_fpin {
1101 __u8 fpin_cmd; /* command (0x16) */
1102 __u8 fpin_zero[3]; /* specified as zero - part of cmd */
1103 __be32 desc_len; /* Length of Descriptor List (in bytes).
1104 * Size of ELS excluding fpin_cmd,
1105 * fpin_zero and desc_len fields.
1106 */
1107 struct fc_tlv_desc fpin_desc[]; /* Descriptor list */
1108 };
1109
1110 /* Diagnostic Function Descriptor - FPIN Registration */
1111 struct fc_df_desc_fpin_reg {
1112 __be32 desc_tag; /* FPIN Registration (0x00030001) */
1113 __be32 desc_len; /* Length of Descriptor (in bytes).
1114 * Size of descriptor excluding
1115 * desc_tag and desc_len fields.
1116 */
1117 __be32 count; /* Number of desc_tags elements */
1118 __be32 desc_tags[]; /* Array of Descriptor Tags.
1119 * Each tag indicates a function
1120 * supported by the N_Port (request)
1121 * or by the N_Port and Fabric
1122 * Controller (reply; may be a subset
1123 * of the request).
1124 * See ELS_FN_DTAG_xxx for tag values.
1125 */
1126 };
1127
1128 /*
1129 * ELS_RDF - Register Diagnostic Functions
1130 */
1131 struct fc_els_rdf {
1132 __u8 fpin_cmd; /* command (0x19) */
1133 __u8 fpin_zero[3]; /* specified as zero - part of cmd */
1134 __be32 desc_len; /* Length of Descriptor List (in bytes).
1135 * Size of ELS excluding fpin_cmd,
1136 * fpin_zero and desc_len fields.
1137 */
1138 struct fc_tlv_desc desc[]; /* Descriptor list */
1139 };
1140
1141 /*
1142 * ELS RDF LS_ACC Response.
1143 */
1144 struct fc_els_rdf_resp {
1145 struct fc_els_ls_acc acc_hdr;
1146 __be32 desc_list_len; /* Length of response (in
1147 * bytes). Excludes acc_hdr
1148 * and desc_list_len fields.
1149 */
1150 struct fc_els_lsri_desc lsri;
1151 struct fc_tlv_desc desc[]; /* Supported Descriptor list */
1152 };
1153
1154
1155 /*
1156 * Diagnostic Capability Descriptors for EDC ELS
1157 */
1158
1159 /*
1160 * Diagnostic: Link Fault Capability Descriptor
1161 */
1162 struct fc_diag_lnkflt_desc {
1163 __be32 desc_tag; /* Descriptor Tag (0x0001000D) */
1164 __be32 desc_len; /* Length of Descriptor (in bytes).
1165 * Size of descriptor excluding
1166 * desc_tag and desc_len fields.
1167 * 12 bytes
1168 */
1169 __be32 degrade_activate_threshold;
1170 __be32 degrade_deactivate_threshold;
1171 __be32 fec_degrade_interval;
1172 };
1173
1174 enum fc_edc_cg_signal_cap_types {
1175 /* Note: Capability: bits 31:4 Rsvd; bits 3:0 are capabilities */
1176 EDC_CG_SIG_NOTSUPPORTED = 0x00, /* neither supported */
1177 EDC_CG_SIG_WARN_ONLY = 0x01,
1178 EDC_CG_SIG_WARN_ALARM = 0x02, /* both supported */
1179 };
1180
1181 /*
1182 * Initializer useful for decoding table.
1183 * Please keep this in sync with the above definitions.
1184 */
1185 #define FC_EDC_CG_SIGNAL_CAP_TYPES_INIT { \
1186 { EDC_CG_SIG_NOTSUPPORTED, "Signaling Not Supported" }, \
1187 { EDC_CG_SIG_WARN_ONLY, "Warning Signal" }, \
1188 { EDC_CG_SIG_WARN_ALARM, "Warning and Alarm Signals" }, \
1189 }
1190
1191 enum fc_diag_cg_sig_freq_types {
1192 EDC_CG_SIGFREQ_CNT_MIN = 1, /* Min Frequency Count */
1193 EDC_CG_SIGFREQ_CNT_MAX = 999, /* Max Frequency Count */
1194
1195 EDC_CG_SIGFREQ_SEC = 0x1, /* Units: seconds */
1196 EDC_CG_SIGFREQ_MSEC = 0x2, /* Units: milliseconds */
1197 };
1198
1199 struct fc_diag_cg_sig_freq {
1200 __be16 count; /* Time between signals
1201 * note: upper 6 bits rsvd
1202 */
1203 __be16 units; /* Time unit for count
1204 * note: upper 12 bits rsvd
1205 */
1206 };
1207
1208 /*
1209 * Diagnostic: Congestion Signaling Capability Descriptor
1210 */
1211 struct fc_diag_cg_sig_desc {
1212 __be32 desc_tag; /* Descriptor Tag (0x0001000F) */
1213 __be32 desc_len; /* Length of Descriptor (in bytes).
1214 * Size of descriptor excluding
1215 * desc_tag and desc_len fields.
1216 * 16 bytes
1217 */
1218 __be32 xmt_signal_capability;
1219 struct fc_diag_cg_sig_freq xmt_signal_frequency;
1220 __be32 rcv_signal_capability;
1221 struct fc_diag_cg_sig_freq rcv_signal_frequency;
1222 };
1223
1224 /*
1225 * ELS_EDC - Exchange Diagnostic Capabilities
1226 */
1227 struct fc_els_edc {
1228 __u8 edc_cmd; /* command (0x17) */
1229 __u8 edc_zero[3]; /* specified as zero - part of cmd */
1230 __be32 desc_len; /* Length of Descriptor List (in bytes).
1231 * Size of ELS excluding edc_cmd,
1232 * edc_zero and desc_len fields.
1233 */
1234 struct fc_tlv_desc desc[];
1235 /* Diagnostic Descriptor list */
1236 };
1237
1238 /*
1239 * ELS EDC LS_ACC Response.
1240 */
1241 struct fc_els_edc_resp {
1242 struct fc_els_ls_acc acc_hdr;
1243 __be32 desc_list_len; /* Length of response (in
1244 * bytes). Excludes acc_hdr
1245 * and desc_list_len fields.
1246 */
1247 struct fc_els_lsri_desc lsri;
1248 struct fc_tlv_desc desc[];
1249 /* Supported Diagnostic Descriptor list */
1250 };
1251
1252
1253 #endif /* _FC_ELS_H_ */
1254
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