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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#ifdef __KERNEL__
15#include <linux/stddef.h> /* for offsetof */
16#else
17#include <stddef.h> /* for offsetof */
18#endif
19
20/*
21 * Fibre Channel Switch - Enhanced Link Services definitions.
22 * From T11 FC-LS Rev 1.2 June 7, 2005.
23 */
24
25/*
26 * ELS Command codes - byte 0 of the frame payload
27 */
28enum fc_els_cmd {
29 ELS_LS_RJT = 0x01, /* ESL reject */
30 ELS_LS_ACC = 0x02, /* ESL Accept */
31 ELS_PLOGI = 0x03, /* N_Port login */
32 ELS_FLOGI = 0x04, /* F_Port login */
33 ELS_LOGO = 0x05, /* Logout */
34 ELS_ABTX = 0x06, /* Abort exchange - obsolete */
35 ELS_RCS = 0x07, /* read connection status */
36 ELS_RES = 0x08, /* read exchange status block */
37 ELS_RSS = 0x09, /* read sequence status block */
38 ELS_RSI = 0x0a, /* read sequence initiative */
39 ELS_ESTS = 0x0b, /* establish streaming */
40 ELS_ESTC = 0x0c, /* estimate credit */
41 ELS_ADVC = 0x0d, /* advise credit */
42 ELS_RTV = 0x0e, /* read timeout value */
43 ELS_RLS = 0x0f, /* read link error status block */
44 ELS_ECHO = 0x10, /* echo */
45 ELS_TEST = 0x11, /* test */
46 ELS_RRQ = 0x12, /* reinstate recovery qualifier */
47 ELS_REC = 0x13, /* read exchange concise */
48 ELS_SRR = 0x14, /* sequence retransmission request */
49 ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */
50 ELS_EDC = 0x17, /* Exchange Diagnostic Capabilities */
51 ELS_RDP = 0x18, /* Read Diagnostic Parameters */
52 ELS_RDF = 0x19, /* Register Diagnostic Functions */
53 ELS_PRLI = 0x20, /* process login */
54 ELS_PRLO = 0x21, /* process logout */
55 ELS_SCN = 0x22, /* state change notification */
56 ELS_TPLS = 0x23, /* test process login state */
57 ELS_TPRLO = 0x24, /* third party process logout */
58 ELS_LCLM = 0x25, /* login control list mgmt (obs) */
59 ELS_GAID = 0x30, /* get alias_ID */
60 ELS_FACT = 0x31, /* fabric activate alias_id */
61 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */
62 ELS_NACT = 0x33, /* N-port activate alias_id */
63 ELS_NDACT = 0x34, /* N-port deactivate alias_id */
64 ELS_QOSR = 0x40, /* quality of service request */
65 ELS_RVCS = 0x41, /* read virtual circuit status */
66 ELS_PDISC = 0x50, /* discover N_port service params */
67 ELS_FDISC = 0x51, /* discover F_port service params */
68 ELS_ADISC = 0x52, /* discover address */
69 ELS_RNC = 0x53, /* report node cap (obs) */
70 ELS_FARP_REQ = 0x54, /* FC ARP request */
71 ELS_FARP_REPL = 0x55, /* FC ARP reply */
72 ELS_RPS = 0x56, /* read port status block */
73 ELS_RPL = 0x57, /* read port list */
74 ELS_RPBC = 0x58, /* read port buffer condition */
75 ELS_FAN = 0x60, /* fabric address notification */
76 ELS_RSCN = 0x61, /* registered state change notification */
77 ELS_SCR = 0x62, /* state change registration */
78 ELS_RNFT = 0x63, /* report node FC-4 types */
79 ELS_CSR = 0x68, /* clock synch. request */
80 ELS_CSU = 0x69, /* clock synch. update */
81 ELS_LINIT = 0x70, /* loop initialize */
82 ELS_LSTS = 0x72, /* loop status */
83 ELS_RNID = 0x78, /* request node ID data */
84 ELS_RLIR = 0x79, /* registered link incident report */
85 ELS_LIRR = 0x7a, /* link incident record registration */
86 ELS_SRL = 0x7b, /* scan remote loop */
87 ELS_SBRP = 0x7c, /* set bit-error reporting params */
88 ELS_RPSC = 0x7d, /* report speed capabilities */
89 ELS_QSA = 0x7e, /* query security attributes */
90 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */
91 ELS_LKA = 0x80, /* link keep-alive */
92 ELS_AUTH_ELS = 0x90, /* authentication ELS */
93};
94
95/*
96 * Initializer useful for decoding table.
97 * Please keep this in sync with the above definitions.
98 */
99#define FC_ELS_CMDS_INIT { \
100 [ELS_LS_RJT] = "LS_RJT", \
101 [ELS_LS_ACC] = "LS_ACC", \
102 [ELS_PLOGI] = "PLOGI", \
103 [ELS_FLOGI] = "FLOGI", \
104 [ELS_LOGO] = "LOGO", \
105 [ELS_ABTX] = "ABTX", \
106 [ELS_RCS] = "RCS", \
107 [ELS_RES] = "RES", \
108 [ELS_RSS] = "RSS", \
109 [ELS_RSI] = "RSI", \
110 [ELS_ESTS] = "ESTS", \
111 [ELS_ESTC] = "ESTC", \
112 [ELS_ADVC] = "ADVC", \
113 [ELS_RTV] = "RTV", \
114 [ELS_RLS] = "RLS", \
115 [ELS_ECHO] = "ECHO", \
116 [ELS_TEST] = "TEST", \
117 [ELS_RRQ] = "RRQ", \
118 [ELS_REC] = "REC", \
119 [ELS_SRR] = "SRR", \
120 [ELS_FPIN] = "FPIN", \
121 [ELS_EDC] = "EDC", \
122 [ELS_RDP] = "RDP", \
123 [ELS_RDF] = "RDF", \
124 [ELS_PRLI] = "PRLI", \
125 [ELS_PRLO] = "PRLO", \
126 [ELS_SCN] = "SCN", \
127 [ELS_TPLS] = "TPLS", \
128 [ELS_TPRLO] = "TPRLO", \
129 [ELS_LCLM] = "LCLM", \
130 [ELS_GAID] = "GAID", \
131 [ELS_FACT] = "FACT", \
132 [ELS_FDACDT] = "FDACDT", \
133 [ELS_NACT] = "NACT", \
134 [ELS_NDACT] = "NDACT", \
135 [ELS_QOSR] = "QOSR", \
136 [ELS_RVCS] = "RVCS", \
137 [ELS_PDISC] = "PDISC", \
138 [ELS_FDISC] = "FDISC", \
139 [ELS_ADISC] = "ADISC", \
140 [ELS_RNC] = "RNC", \
141 [ELS_FARP_REQ] = "FARP_REQ", \
142 [ELS_FARP_REPL] = "FARP_REPL", \
143 [ELS_RPS] = "RPS", \
144 [ELS_RPL] = "RPL", \
145 [ELS_RPBC] = "RPBC", \
146 [ELS_FAN] = "FAN", \
147 [ELS_RSCN] = "RSCN", \
148 [ELS_SCR] = "SCR", \
149 [ELS_RNFT] = "RNFT", \
150 [ELS_CSR] = "CSR", \
151 [ELS_CSU] = "CSU", \
152 [ELS_LINIT] = "LINIT", \
153 [ELS_LSTS] = "LSTS", \
154 [ELS_RNID] = "RNID", \
155 [ELS_RLIR] = "RLIR", \
156 [ELS_LIRR] = "LIRR", \
157 [ELS_SRL] = "SRL", \
158 [ELS_SBRP] = "SBRP", \
159 [ELS_RPSC] = "RPSC", \
160 [ELS_QSA] = "QSA", \
161 [ELS_EVFP] = "EVFP", \
162 [ELS_LKA] = "LKA", \
163 [ELS_AUTH_ELS] = "AUTH_ELS", \
164}
165
166/*
167 * LS_ACC payload.
168 */
169struct fc_els_ls_acc {
170 __u8 la_cmd; /* command code ELS_LS_ACC */
171 __u8 la_resv[3]; /* reserved */
172};
173
174/*
175 * ELS reject payload.
176 */
177struct fc_els_ls_rjt {
178 __u8 er_cmd; /* command code ELS_LS_RJT */
179 __u8 er_resv[4]; /* reserved must be zero */
180 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */
181 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */
182 __u8 er_vendor; /* vendor specific code */
183};
184
185/*
186 * ELS reject reason codes (er_reason).
187 */
188enum fc_els_rjt_reason {
189 ELS_RJT_NONE = 0, /* no reject - not to be sent */
190 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */
191 ELS_RJT_LOGIC = 0x03, /* logical error */
192 ELS_RJT_BUSY = 0x05, /* logical busy */
193 ELS_RJT_PROT = 0x07, /* protocol error */
194 ELS_RJT_UNAB = 0x09, /* unable to perform command request */
195 ELS_RJT_UNSUP = 0x0b, /* command not supported */
196 ELS_RJT_INPROG = 0x0e, /* command already in progress */
197 ELS_RJT_FIP = 0x20, /* FIP error */
198 ELS_RJT_VENDOR = 0xff, /* vendor specific error */
199};
200
201
202/*
203 * reason code explanation (er_explan).
204 */
205enum fc_els_rjt_explan {
206 ELS_EXPL_NONE = 0x00, /* No additional explanation */
207 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */
208 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */
209 ELS_EXPL_AH = 0x11, /* invalid association header */
210 ELS_EXPL_AH_REQ = 0x13, /* association_header required */
211 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */
212 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */
213 ELS_EXPL_INPROG = 0x19, /* Request already in progress */
214 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */
215 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */
216 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */
217 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */
218 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */
219 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */
220 /* TBD - above definitions incomplete */
221};
222
223/*
224 * Link Service TLV Descriptor Tag Values
225 */
226enum fc_ls_tlv_dtag {
227 ELS_DTAG_LS_REQ_INFO = 0x00000001,
228 /* Link Service Request Information Descriptor */
229 ELS_DTAG_LNK_FAULT_CAP = 0x0001000D,
230 /* Link Fault Capability Descriptor */
231 ELS_DTAG_CG_SIGNAL_CAP = 0x0001000F,
232 /* Congestion Signaling Capability Descriptor */
233 ELS_DTAG_LNK_INTEGRITY = 0x00020001,
234 /* Link Integrity Notification Descriptor */
235 ELS_DTAG_DELIVERY = 0x00020002,
236 /* Delivery Notification Descriptor */
237 ELS_DTAG_PEER_CONGEST = 0x00020003,
238 /* Peer Congestion Notification Descriptor */
239 ELS_DTAG_CONGESTION = 0x00020004,
240 /* Congestion Notification Descriptor */
241 ELS_DTAG_FPIN_REGISTER = 0x00030001,
242 /* FPIN Registration Descriptor */
243};
244
245/*
246 * Initializer useful for decoding table.
247 * Please keep this in sync with the above definitions.
248 */
249#define FC_LS_TLV_DTAG_INIT { \
250 { ELS_DTAG_LS_REQ_INFO, "Link Service Request Information" }, \
251 { ELS_DTAG_LNK_FAULT_CAP, "Link Fault Capability" }, \
252 { ELS_DTAG_CG_SIGNAL_CAP, "Congestion Signaling Capability" }, \
253 { ELS_DTAG_LNK_INTEGRITY, "Link Integrity Notification" }, \
254 { ELS_DTAG_DELIVERY, "Delivery Notification Present" }, \
255 { ELS_DTAG_PEER_CONGEST, "Peer Congestion Notification" }, \
256 { ELS_DTAG_CONGESTION, "Congestion Notification" }, \
257 { ELS_DTAG_FPIN_REGISTER, "FPIN Registration" }, \
258}
259
260
261/*
262 * Generic Link Service TLV Descriptor format
263 *
264 * This structure, as it defines no payload, will also be referred to
265 * as the "tlv header" - which contains the tag and len fields.
266 */
267struct fc_tlv_desc {
268 __be32 desc_tag; /* Notification Descriptor Tag */
269 __be32 desc_len; /* Length of Descriptor (in bytes).
270 * Size of descriptor excluding
271 * desc_tag and desc_len fields.
272 */
273 __u8 desc_value[]; /* Descriptor Value */
274};
275
276/* Descriptor tag and len fields are considered the mandatory header
277 * for a descriptor
278 */
279#define FC_TLV_DESC_HDR_SZ sizeof(struct fc_tlv_desc)
280
281/*
282 * Macro, used when initializing payloads, to return the descriptor length.
283 * Length is size of descriptor minus the tag and len fields.
284 */
285#define FC_TLV_DESC_LENGTH_FROM_SZ(desc) \
286 (sizeof(desc) - FC_TLV_DESC_HDR_SZ)
287
288/* Macro, used on received payloads, to return the descriptor length */
289#define FC_TLV_DESC_SZ_FROM_LENGTH(tlv) \
290 (__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ)
291
292/*
293 * This helper is used to walk descriptors in a descriptor list.
294 * Given the address of the current descriptor, which minimally contains a
295 * tag and len field, calculate the address of the next descriptor based
296 * on the len field.
297 */
298static inline void *fc_tlv_next_desc(void *desc)
299{
300 struct fc_tlv_desc *tlv = desc;
301
302 return (desc + FC_TLV_DESC_SZ_FROM_LENGTH(tlv));
303}
304
305
306/*
307 * Link Service Request Information Descriptor
308 */
309struct fc_els_lsri_desc {
310 __be32 desc_tag; /* descriptor tag (0x0000 0001) */
311 __be32 desc_len; /* Length of Descriptor (in bytes) (4).
312 * Size of descriptor excluding
313 * desc_tag and desc_len fields.
314 */
315 struct {
316 __u8 cmd; /* ELS cmd byte */
317 __u8 bytes[3]; /* bytes 1..3 */
318 } rqst_w0; /* Request word 0 */
319};
320
321
322/*
323 * Common service parameters (N ports).
324 */
325struct fc_els_csp {
326 __u8 sp_hi_ver; /* highest version supported (obs.) */
327 __u8 sp_lo_ver; /* highest version supported (obs.) */
328 __be16 sp_bb_cred; /* buffer-to-buffer credits */
329 __be16 sp_features; /* common feature flags */
330 __be16 sp_bb_data; /* b-b state number and data field sz */
331 union {
332 struct {
333 __be16 _sp_tot_seq; /* total concurrent sequences */
334 __be16 _sp_rel_off; /* rel. offset by info cat */
335 } sp_plogi;
336 struct {
337 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */
338 } sp_flogi_acc;
339 } sp_u;
340 __be32 sp_e_d_tov; /* error detect timeout value */
341};
342#define sp_tot_seq sp_u.sp_plogi._sp_tot_seq
343#define sp_rel_off sp_u.sp_plogi._sp_rel_off
344#define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov
345
346#define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */
347
348/*
349 * Minimum and maximum values for max data field size in service parameters.
350 */
351#define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD
352#define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD
353
354/*
355 * sp_features
356 */
357#define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */
358#define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */
359#define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */
360#define FC_SP_FT_RAND 0x4000 /* random relative offset */
361#define FC_SP_FT_VAL 0x2000 /* valid vendor version level */
362#define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */
363#define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */
364#define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */
365#define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */
366#define FC_SP_FT_MCAST 0x0200 /* multicast */
367#define FC_SP_FT_BCAST 0x0100 /* broadcast */
368#define FC_SP_FT_HUNT 0x0080 /* hunt group */
369#define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */
370#define FC_SP_FT_SEC 0x0020 /* reserved for security */
371#define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */
372#define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */
373#define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */
374#define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */
375#define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */
376
377/*
378 * Class-specific service parameters.
379 */
380struct fc_els_cssp {
381 __be16 cp_class; /* class flags */
382 __be16 cp_init; /* initiator flags */
383 __be16 cp_recip; /* recipient flags */
384 __be16 cp_rdfs; /* receive data field size */
385 __be16 cp_con_seq; /* concurrent sequences */
386 __be16 cp_ee_cred; /* N-port end-to-end credit */
387 __u8 cp_resv1; /* reserved */
388 __u8 cp_open_seq; /* open sequences per exchange */
389 __u8 _cp_resv2[2]; /* reserved */
390};
391
392/*
393 * cp_class flags.
394 */
395#define FC_CPC_VALID 0x8000 /* class valid */
396#define FC_CPC_IMIX 0x4000 /* intermix mode */
397#define FC_CPC_SEQ 0x0800 /* sequential delivery */
398#define FC_CPC_CAMP 0x0200 /* camp-on */
399#define FC_CPC_PRI 0x0080 /* priority */
400
401/*
402 * cp_init flags.
403 * (TBD: not all flags defined here).
404 */
405#define FC_CPI_CSYN 0x0010 /* clock synch. capable */
406
407/*
408 * cp_recip flags.
409 */
410#define FC_CPR_CSYN 0x0008 /* clock synch. capable */
411
412/*
413 * NFC_ELS_FLOGI: Fabric login request.
414 * NFC_ELS_PLOGI: Port login request (same format).
415 */
416struct fc_els_flogi {
417 __u8 fl_cmd; /* command */
418 __u8 _fl_resvd[3]; /* must be zero */
419 struct fc_els_csp fl_csp; /* common service parameters */
420 __be64 fl_wwpn; /* port name */
421 __be64 fl_wwnn; /* node name */
422 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */
423 __u8 fl_vend[16]; /* vendor version level */
424} __attribute__((__packed__));
425
426/*
427 * Process login service parameter page.
428 */
429struct fc_els_spp {
430 __u8 spp_type; /* type code or common service params */
431 __u8 spp_type_ext; /* type code extension */
432 __u8 spp_flags;
433 __u8 _spp_resvd;
434 __be32 spp_orig_pa; /* originator process associator */
435 __be32 spp_resp_pa; /* responder process associator */
436 __be32 spp_params; /* service parameters */
437};
438
439/*
440 * spp_flags.
441 */
442#define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */
443#define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */
444#define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */
445#define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */
446
447/*
448 * SPP response code in spp_flags - lower 4 bits.
449 */
450enum fc_els_spp_resp {
451 FC_SPP_RESP_ACK = 1, /* request executed */
452 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */
453 FC_SPP_RESP_INIT = 3, /* initialization not complete */
454 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */
455 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */
456 FC_SPP_RESP_COND = 6, /* request completed conditionally */
457 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */
458 FC_SPP_RESP_INVL = 8, /* SPP is invalid */
459};
460
461/*
462 * ELS_RRQ - Reinstate Recovery Qualifier
463 */
464struct fc_els_rrq {
465 __u8 rrq_cmd; /* command (0x12) */
466 __u8 rrq_zero[3]; /* specified as zero - part of cmd */
467 __u8 rrq_resvd; /* reserved */
468 __u8 rrq_s_id[3]; /* originator FID */
469 __be16 rrq_ox_id; /* originator exchange ID */
470 __be16 rrq_rx_id; /* responders exchange ID */
471};
472
473/*
474 * ELS_REC - Read exchange concise.
475 */
476struct fc_els_rec {
477 __u8 rec_cmd; /* command (0x13) */
478 __u8 rec_zero[3]; /* specified as zero - part of cmd */
479 __u8 rec_resvd; /* reserved */
480 __u8 rec_s_id[3]; /* originator FID */
481 __be16 rec_ox_id; /* originator exchange ID */
482 __be16 rec_rx_id; /* responders exchange ID */
483};
484
485/*
486 * ELS_REC LS_ACC payload.
487 */
488struct fc_els_rec_acc {
489 __u8 reca_cmd; /* accept (0x02) */
490 __u8 reca_zero[3]; /* specified as zero - part of cmd */
491 __be16 reca_ox_id; /* originator exchange ID */
492 __be16 reca_rx_id; /* responders exchange ID */
493 __u8 reca_resvd1; /* reserved */
494 __u8 reca_ofid[3]; /* originator FID */
495 __u8 reca_resvd2; /* reserved */
496 __u8 reca_rfid[3]; /* responder FID */
497 __be32 reca_fc4value; /* FC4 value */
498 __be32 reca_e_stat; /* ESB (exchange status block) status */
499};
500
501/*
502 * ELS_PRLI - Process login request and response.
503 */
504struct fc_els_prli {
505 __u8 prli_cmd; /* command */
506 __u8 prli_spp_len; /* length of each serv. parm. page */
507 __be16 prli_len; /* length of entire payload */
508 /* service parameter pages follow */
509};
510
511/*
512 * ELS_PRLO - Process logout request and response.
513 */
514struct fc_els_prlo {
515 __u8 prlo_cmd; /* command */
516 __u8 prlo_obs; /* obsolete, but shall be set to 10h */
517 __be16 prlo_len; /* payload length */
518};
519
520/*
521 * ELS_ADISC payload
522 */
523struct fc_els_adisc {
524 __u8 adisc_cmd;
525 __u8 adisc_resv[3];
526 __u8 adisc_resv1;
527 __u8 adisc_hard_addr[3];
528 __be64 adisc_wwpn;
529 __be64 adisc_wwnn;
530 __u8 adisc_resv2;
531 __u8 adisc_port_id[3];
532} __attribute__((__packed__));
533
534/*
535 * ELS_LOGO - process or fabric logout.
536 */
537struct fc_els_logo {
538 __u8 fl_cmd; /* command code */
539 __u8 fl_zero[3]; /* specified as zero - part of cmd */
540 __u8 fl_resvd; /* reserved */
541 __u8 fl_n_port_id[3];/* N port ID */
542 __be64 fl_n_port_wwn; /* port name */
543};
544
545/*
546 * ELS_RTV - read timeout value.
547 */
548struct fc_els_rtv {
549 __u8 rtv_cmd; /* command code 0x0e */
550 __u8 rtv_zero[3]; /* specified as zero - part of cmd */
551};
552
553/*
554 * LS_ACC for ELS_RTV - read timeout value.
555 */
556struct fc_els_rtv_acc {
557 __u8 rtv_cmd; /* command code 0x02 */
558 __u8 rtv_zero[3]; /* specified as zero - part of cmd */
559 __be32 rtv_r_a_tov; /* resource allocation timeout value */
560 __be32 rtv_e_d_tov; /* error detection timeout value */
561 __be32 rtv_toq; /* timeout qualifier (see below) */
562};
563
564/*
565 * rtv_toq bits.
566 */
567#define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */
568#define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */
569
570/*
571 * ELS_SCR - state change registration payload.
572 */
573struct fc_els_scr {
574 __u8 scr_cmd; /* command code */
575 __u8 scr_resv[6]; /* reserved */
576 __u8 scr_reg_func; /* registration function (see below) */
577};
578
579enum fc_els_scr_func {
580 ELS_SCRF_FAB = 1, /* fabric-detected registration */
581 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */
582 ELS_SCRF_FULL = 3, /* full registration */
583 ELS_SCRF_CLEAR = 255, /* remove any current registrations */
584};
585
586/*
587 * ELS_RSCN - registered state change notification payload.
588 */
589struct fc_els_rscn {
590 __u8 rscn_cmd; /* RSCN opcode (0x61) */
591 __u8 rscn_page_len; /* page length (4) */
592 __be16 rscn_plen; /* payload length including this word */
593
594 /* followed by 4-byte generic affected Port_ID pages */
595};
596
597struct fc_els_rscn_page {
598 __u8 rscn_page_flags; /* event and address format */
599 __u8 rscn_fid[3]; /* fabric ID */
600};
601
602#define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */
603#define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */
604#define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */
605#define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */
606
607enum fc_els_rscn_ev_qual {
608 ELS_EV_QUAL_NONE = 0, /* unspecified */
609 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */
610 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */
611 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */
612 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */
613 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */
614};
615
616enum fc_els_rscn_addr_fmt {
617 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */
618 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */
619 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */
620 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */
621};
622
623/*
624 * ELS_RNID - request Node ID.
625 */
626struct fc_els_rnid {
627 __u8 rnid_cmd; /* RNID opcode (0x78) */
628 __u8 rnid_resv[3]; /* reserved */
629 __u8 rnid_fmt; /* data format */
630 __u8 rnid_resv2[3]; /* reserved */
631};
632
633/*
634 * Node Identification Data formats (rnid_fmt)
635 */
636enum fc_els_rnid_fmt {
637 ELS_RNIDF_NONE = 0, /* no specific identification data */
638 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */
639};
640
641/*
642 * ELS_RNID response.
643 */
644struct fc_els_rnid_resp {
645 __u8 rnid_cmd; /* response code (LS_ACC) */
646 __u8 rnid_resv[3]; /* reserved */
647 __u8 rnid_fmt; /* data format */
648 __u8 rnid_cid_len; /* common ID data length */
649 __u8 rnid_resv2; /* reserved */
650 __u8 rnid_sid_len; /* specific ID data length */
651};
652
653struct fc_els_rnid_cid {
654 __be64 rnid_wwpn; /* N port name */
655 __be64 rnid_wwnn; /* node name */
656};
657
658struct fc_els_rnid_gen {
659 __u8 rnid_vend_id[16]; /* vendor-unique ID */
660 __be32 rnid_atype; /* associated type (see below) */
661 __be32 rnid_phys_port; /* physical port number */
662 __be32 rnid_att_nodes; /* number of attached nodes */
663 __u8 rnid_node_mgmt; /* node management (see below) */
664 __u8 rnid_ip_ver; /* IP version (see below) */
665 __be16 rnid_prot_port; /* UDP / TCP port number */
666 __be32 rnid_ip_addr[4]; /* IP address */
667 __u8 rnid_resvd[2]; /* reserved */
668 __be16 rnid_vend_spec; /* vendor-specific field */
669};
670
671enum fc_els_rnid_atype {
672 ELS_RNIDA_UNK = 0x01, /* unknown */
673 ELS_RNIDA_OTHER = 0x02, /* none of the following */
674 ELS_RNIDA_HUB = 0x03,
675 ELS_RNIDA_SWITCH = 0x04,
676 ELS_RNIDA_GATEWAY = 0x05,
677 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */
678 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */
679 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */
680 ELS_RNIDA_STORAGE = 0x09,
681 ELS_RNIDA_HOST = 0x0a,
682 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */
683 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */
684 ELS_RNIDA_NAS = 0x11, /* NAS server */
685 ELS_RNIDA_BRIDGE = 0x12, /* bridge */
686 ELS_RNIDA_VIRT = 0x13, /* virtualization device */
687 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */
688 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */
689 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */
690 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */
691 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */
692 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */
693 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */
694 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */
695 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */
696 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */
697 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */
698 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */
699};
700
701enum fc_els_rnid_mgmt {
702 ELS_RNIDM_SNMP = 0,
703 ELS_RNIDM_TELNET = 1,
704 ELS_RNIDM_HTTP = 2,
705 ELS_RNIDM_HTTPS = 3,
706 ELS_RNIDM_XML = 4, /* HTTP + XML */
707};
708
709enum fc_els_rnid_ipver {
710 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */
711 ELS_RNIDIP_V4 = 1, /* IPv4 */
712 ELS_RNIDIP_V6 = 2, /* IPv6 */
713};
714
715/*
716 * ELS RPL - Read Port List.
717 */
718struct fc_els_rpl {
719 __u8 rpl_cmd; /* command */
720 __u8 rpl_resv[5]; /* reserved - must be zero */
721 __be16 rpl_max_size; /* maximum response size or zero */
722 __u8 rpl_resv1; /* reserved - must be zero */
723 __u8 rpl_index[3]; /* starting index */
724};
725
726/*
727 * Port number block in RPL response.
728 */
729struct fc_els_pnb {
730 __be32 pnb_phys_pn; /* physical port number */
731 __u8 pnb_resv; /* reserved */
732 __u8 pnb_port_id[3]; /* port ID */
733 __be64 pnb_wwpn; /* port name */
734};
735
736/*
737 * RPL LS_ACC response.
738 */
739struct fc_els_rpl_resp {
740 __u8 rpl_cmd; /* ELS_LS_ACC */
741 __u8 rpl_resv1; /* reserved - must be zero */
742 __be16 rpl_plen; /* payload length */
743 __u8 rpl_resv2; /* reserved - must be zero */
744 __u8 rpl_llen[3]; /* list length */
745 __u8 rpl_resv3; /* reserved - must be zero */
746 __u8 rpl_index[3]; /* starting index */
747 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */
748};
749
750/*
751 * Link Error Status Block.
752 */
753struct fc_els_lesb {
754 __be32 lesb_link_fail; /* link failure count */
755 __be32 lesb_sync_loss; /* loss of synchronization count */
756 __be32 lesb_sig_loss; /* loss of signal count */
757 __be32 lesb_prim_err; /* primitive sequence error count */
758 __be32 lesb_inv_word; /* invalid transmission word count */
759 __be32 lesb_inv_crc; /* invalid CRC count */
760};
761
762/*
763 * ELS RPS - Read Port Status Block request.
764 */
765struct fc_els_rps {
766 __u8 rps_cmd; /* command */
767 __u8 rps_resv[2]; /* reserved - must be zero */
768 __u8 rps_flag; /* flag - see below */
769 __be64 rps_port_spec; /* port selection */
770};
771
772enum fc_els_rps_flag {
773 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */
774 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */
775 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */
776};
777
778/*
779 * ELS RPS LS_ACC response.
780 */
781struct fc_els_rps_resp {
782 __u8 rps_cmd; /* command - LS_ACC */
783 __u8 rps_resv[2]; /* reserved - must be zero */
784 __u8 rps_flag; /* flag - see below */
785 __u8 rps_resv2[2]; /* reserved */
786 __be16 rps_status; /* port status - see below */
787 struct fc_els_lesb rps_lesb; /* link error status block */
788};
789
790enum fc_els_rps_resp_flag {
791 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */
792};
793
794enum fc_els_rps_resp_status {
795 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */
796 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */
797 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */
798 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */
799 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */
800 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */
801};
802
803/*
804 * ELS LIRR - Link Incident Record Registration request.
805 */
806struct fc_els_lirr {
807 __u8 lirr_cmd; /* command */
808 __u8 lirr_resv[3]; /* reserved - must be zero */
809 __u8 lirr_func; /* registration function */
810 __u8 lirr_fmt; /* FC-4 type of RLIR requested */
811 __u8 lirr_resv2[2]; /* reserved - must be zero */
812};
813
814enum fc_els_lirr_func {
815 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */
816 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */
817 ELS_LIRR_CLEAR = 0xff /* clear registration */
818};
819
820/*
821 * ELS SRL - Scan Remote Loop request.
822 */
823struct fc_els_srl {
824 __u8 srl_cmd; /* command */
825 __u8 srl_resv[3]; /* reserved - must be zero */
826 __u8 srl_flag; /* flag - see below */
827 __u8 srl_flag_param[3]; /* flag parameter */
828};
829
830enum fc_els_srl_flag {
831 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */
832 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */
833 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */
834 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */
835};
836
837/*
838 * ELS RLS - Read Link Error Status Block request.
839 */
840struct fc_els_rls {
841 __u8 rls_cmd; /* command */
842 __u8 rls_resv[4]; /* reserved - must be zero */
843 __u8 rls_port_id[3]; /* port ID */
844};
845
846/*
847 * ELS RLS LS_ACC Response.
848 */
849struct fc_els_rls_resp {
850 __u8 rls_cmd; /* ELS_LS_ACC */
851 __u8 rls_resv[3]; /* reserved - must be zero */
852 struct fc_els_lesb rls_lesb; /* link error status block */
853};
854
855/*
856 * ELS RLIR - Registered Link Incident Report.
857 * This is followed by the CLIR and the CLID, described below.
858 */
859struct fc_els_rlir {
860 __u8 rlir_cmd; /* command */
861 __u8 rlir_resv[3]; /* reserved - must be zero */
862 __u8 rlir_fmt; /* format (FC4-type if type specific) */
863 __u8 rlir_clr_len; /* common link incident record length */
864 __u8 rlir_cld_len; /* common link incident desc. length */
865 __u8 rlir_slr_len; /* spec. link incident record length */
866};
867
868/*
869 * CLIR - Common Link Incident Record Data. - Sent via RLIR.
870 */
871struct fc_els_clir {
872 __be64 clir_wwpn; /* incident port name */
873 __be64 clir_wwnn; /* incident port node name */
874 __u8 clir_port_type; /* incident port type */
875 __u8 clir_port_id[3]; /* incident port ID */
876
877 __be64 clir_conn_wwpn; /* connected port name */
878 __be64 clir_conn_wwnn; /* connected node name */
879 __be64 clir_fab_name; /* fabric name */
880 __be32 clir_phys_port; /* physical port number */
881 __be32 clir_trans_id; /* transaction ID */
882 __u8 clir_resv[3]; /* reserved */
883 __u8 clir_ts_fmt; /* time stamp format */
884 __be64 clir_timestamp; /* time stamp */
885};
886
887/*
888 * CLIR clir_ts_fmt - time stamp format values.
889 */
890enum fc_els_clir_ts_fmt {
891 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */
892 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */
893 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */
894};
895
896/*
897 * Common Link Incident Descriptor - sent via RLIR.
898 */
899struct fc_els_clid {
900 __u8 clid_iq; /* incident qualifier flags */
901 __u8 clid_ic; /* incident code */
902 __be16 clid_epai; /* domain/area of ISL */
903};
904
905/*
906 * CLID incident qualifier flags.
907 */
908enum fc_els_clid_iq {
909 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */
910 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */
911 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */
912 ELS_CLID_SEV_INFO = 0x00, /* report is informational */
913 ELS_CLID_SEV_INOP = 0x08, /* link not operational */
914 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */
915 ELS_CLID_LASER = 0x02, /* subassembly is a laser */
916 ELS_CLID_FRU = 0x01, /* format can identify a FRU */
917};
918
919/*
920 * CLID incident code.
921 */
922enum fc_els_clid_ic {
923 ELS_CLID_IC_IMPL = 1, /* implicit incident */
924 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */
925 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */
926 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */
927 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */
928 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */
929 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */
930 ELS_CLID_IC_LIP = 8, /* receiving LIP */
931};
932
933/*
934 * Link Integrity event types
935 */
936enum fc_fpin_li_event_types {
937 FPIN_LI_UNKNOWN = 0x0,
938 FPIN_LI_LINK_FAILURE = 0x1,
939 FPIN_LI_LOSS_OF_SYNC = 0x2,
940 FPIN_LI_LOSS_OF_SIG = 0x3,
941 FPIN_LI_PRIM_SEQ_ERR = 0x4,
942 FPIN_LI_INVALID_TX_WD = 0x5,
943 FPIN_LI_INVALID_CRC = 0x6,
944 FPIN_LI_DEVICE_SPEC = 0xF,
945};
946
947/*
948 * Initializer useful for decoding table.
949 * Please keep this in sync with the above definitions.
950 */
951#define FC_FPIN_LI_EVT_TYPES_INIT { \
952 { FPIN_LI_UNKNOWN, "Unknown" }, \
953 { FPIN_LI_LINK_FAILURE, "Link Failure" }, \
954 { FPIN_LI_LOSS_OF_SYNC, "Loss of Synchronization" }, \
955 { FPIN_LI_LOSS_OF_SIG, "Loss of Signal" }, \
956 { FPIN_LI_PRIM_SEQ_ERR, "Primitive Sequence Protocol Error" }, \
957 { FPIN_LI_INVALID_TX_WD, "Invalid Transmission Word" }, \
958 { FPIN_LI_INVALID_CRC, "Invalid CRC" }, \
959 { FPIN_LI_DEVICE_SPEC, "Device Specific" }, \
960}
961
962/*
963 * Delivery event types
964 */
965enum fc_fpin_deli_event_types {
966 FPIN_DELI_UNKNOWN = 0x0,
967 FPIN_DELI_TIMEOUT = 0x1,
968 FPIN_DELI_UNABLE_TO_ROUTE = 0x2,
969 FPIN_DELI_DEVICE_SPEC = 0xF,
970};
971
972/*
973 * Initializer useful for decoding table.
974 * Please keep this in sync with the above definitions.
975 */
976#define FC_FPIN_DELI_EVT_TYPES_INIT { \
977 { FPIN_DELI_UNKNOWN, "Unknown" }, \
978 { FPIN_DELI_TIMEOUT, "Timeout" }, \
979 { FPIN_DELI_UNABLE_TO_ROUTE, "Unable to Route" }, \
980 { FPIN_DELI_DEVICE_SPEC, "Device Specific" }, \
981}
982
983/*
984 * Congestion event types
985 */
986enum fc_fpin_congn_event_types {
987 FPIN_CONGN_CLEAR = 0x0,
988 FPIN_CONGN_LOST_CREDIT = 0x1,
989 FPIN_CONGN_CREDIT_STALL = 0x2,
990 FPIN_CONGN_OVERSUBSCRIPTION = 0x3,
991 FPIN_CONGN_DEVICE_SPEC = 0xF,
992};
993
994/*
995 * Initializer useful for decoding table.
996 * Please keep this in sync with the above definitions.
997 */
998#define FC_FPIN_CONGN_EVT_TYPES_INIT { \
999 { FPIN_CONGN_CLEAR, "Clear" }, \
1000 { FPIN_CONGN_LOST_CREDIT, "Lost Credit" }, \
1001 { FPIN_CONGN_CREDIT_STALL, "Credit Stall" }, \
1002 { FPIN_CONGN_OVERSUBSCRIPTION, "Oversubscription" }, \
1003 { FPIN_CONGN_DEVICE_SPEC, "Device Specific" }, \
1004}
1005
1006enum fc_fpin_congn_severity_types {
1007 FPIN_CONGN_SEVERITY_WARNING = 0xF1,
1008 FPIN_CONGN_SEVERITY_ERROR = 0xF7,
1009};
1010
1011/*
1012 * Link Integrity Notification Descriptor
1013 */
1014struct fc_fn_li_desc {
1015 __be32 desc_tag; /* Descriptor Tag (0x00020001) */
1016 __be32 desc_len; /* Length of Descriptor (in bytes).
1017 * Size of descriptor excluding
1018 * desc_tag and desc_len fields.
1019 */
1020 __be64 detecting_wwpn; /* Port Name that detected event */
1021 __be64 attached_wwpn; /* Port Name of device attached to
1022 * detecting Port Name
1023 */
1024 __be16 event_type; /* see enum fc_fpin_li_event_types */
1025 __be16 event_modifier; /* Implementation specific value
1026 * describing the event type
1027 */
1028 __be32 event_threshold;/* duration in ms of the link
1029 * integrity detection cycle
1030 */
1031 __be32 event_count; /* minimum number of event
1032 * occurrences during the event
1033 * threshold to cause the LI event
1034 */
1035 __be32 pname_count; /* number of portname_list elements */
1036 __be64 pname_list[]; /* list of N_Port_Names accessible
1037 * through the attached port
1038 */
1039};
1040
1041/*
1042 * Delivery Notification Descriptor
1043 */
1044struct fc_fn_deli_desc {
1045 __be32 desc_tag; /* Descriptor Tag (0x00020002) */
1046 __be32 desc_len; /* Length of Descriptor (in bytes).
1047 * Size of descriptor excluding
1048 * desc_tag and desc_len fields.
1049 */
1050 __be64 detecting_wwpn; /* Port Name that detected event */
1051 __be64 attached_wwpn; /* Port Name of device attached to
1052 * detecting Port Name
1053 */
1054 __be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */
1055};
1056
1057/*
1058 * Peer Congestion Notification Descriptor
1059 */
1060struct fc_fn_peer_congn_desc {
1061 __be32 desc_tag; /* Descriptor Tag (0x00020003) */
1062 __be32 desc_len; /* Length of Descriptor (in bytes).
1063 * Size of descriptor excluding
1064 * desc_tag and desc_len fields.
1065 */
1066 __be64 detecting_wwpn; /* Port Name that detected event */
1067 __be64 attached_wwpn; /* Port Name of device attached to
1068 * detecting Port Name
1069 */
1070 __be16 event_type; /* see enum fc_fpin_congn_event_types */
1071 __be16 event_modifier; /* Implementation specific value
1072 * describing the event type
1073 */
1074 __be32 event_period; /* duration (ms) of the detected
1075 * congestion event
1076 */
1077 __be32 pname_count; /* number of portname_list elements */
1078 __be64 pname_list[]; /* list of N_Port_Names accessible
1079 * through the attached port
1080 */
1081};
1082
1083/*
1084 * Congestion Notification Descriptor
1085 */
1086struct fc_fn_congn_desc {
1087 __be32 desc_tag; /* Descriptor Tag (0x00020004) */
1088 __be32 desc_len; /* Length of Descriptor (in bytes).
1089 * Size of descriptor excluding
1090 * desc_tag and desc_len fields.
1091 */
1092 __be16 event_type; /* see enum fc_fpin_congn_event_types */
1093 __be16 event_modifier; /* Implementation specific value
1094 * describing the event type
1095 */
1096 __be32 event_period; /* duration (ms) of the detected
1097 * congestion event
1098 */
1099 __u8 severity; /* command */
1100 __u8 resv[3]; /* reserved - must be zero */
1101};
1102
1103/*
1104 * ELS_FPIN - Fabric Performance Impact Notification
1105 */
1106struct fc_els_fpin {
1107 __u8 fpin_cmd; /* command (0x16) */
1108 __u8 fpin_zero[3]; /* specified as zero - part of cmd */
1109 __be32 desc_len; /* Length of Descriptor List (in bytes).
1110 * Size of ELS excluding fpin_cmd,
1111 * fpin_zero and desc_len fields.
1112 */
1113 struct fc_tlv_desc fpin_desc[]; /* Descriptor list */
1114};
1115
1116/* Diagnostic Function Descriptor - FPIN Registration */
1117struct fc_df_desc_fpin_reg {
1118 /* New members MUST be added within the __struct_group() macro below. */
1119 __struct_group(fc_df_desc_fpin_reg_hdr, __hdr, /* no attrs */,
1120 __be32 desc_tag; /* FPIN Registration (0x00030001) */
1121 __be32 desc_len; /* Length of Descriptor (in bytes).
1122 * Size of descriptor excluding
1123 * desc_tag and desc_len fields.
1124 */
1125 __be32 count; /* Number of desc_tags elements */
1126 );
1127 __be32 desc_tags[]; /* Array of Descriptor Tags.
1128 * Each tag indicates a function
1129 * supported by the N_Port (request)
1130 * or by the N_Port and Fabric
1131 * Controller (reply; may be a subset
1132 * of the request).
1133 * See ELS_FN_DTAG_xxx for tag values.
1134 */
1135};
1136_Static_assert(offsetof(struct fc_df_desc_fpin_reg, desc_tags) == sizeof(struct fc_df_desc_fpin_reg_hdr),
1137 "struct member likely outside of __struct_group()");
1138
1139/*
1140 * ELS_RDF - Register Diagnostic Functions
1141 */
1142struct fc_els_rdf {
1143 /* New members MUST be added within the __struct_group() macro below. */
1144 __struct_group(fc_els_rdf_hdr, __hdr, /* no attrs */,
1145 __u8 fpin_cmd; /* command (0x19) */
1146 __u8 fpin_zero[3]; /* specified as zero - part of cmd */
1147 __be32 desc_len; /* Length of Descriptor List (in bytes).
1148 * Size of ELS excluding fpin_cmd,
1149 * fpin_zero and desc_len fields.
1150 */
1151 );
1152 struct fc_tlv_desc desc[]; /* Descriptor list */
1153};
1154_Static_assert(offsetof(struct fc_els_rdf, desc) == sizeof(struct fc_els_rdf_hdr),
1155 "struct member likely outside of __struct_group()");
1156
1157/*
1158 * ELS RDF LS_ACC Response.
1159 */
1160struct fc_els_rdf_resp {
1161 /* New members MUST be added within the __struct_group() macro below. */
1162 __struct_group(fc_els_rdf_resp_hdr, __hdr, /* no attrs */,
1163 struct fc_els_ls_acc acc_hdr;
1164 __be32 desc_list_len; /* Length of response (in
1165 * bytes). Excludes acc_hdr
1166 * and desc_list_len fields.
1167 */
1168 struct fc_els_lsri_desc lsri;
1169 );
1170 struct fc_tlv_desc desc[]; /* Supported Descriptor list */
1171};
1172_Static_assert(offsetof(struct fc_els_rdf_resp, desc) == sizeof(struct fc_els_rdf_resp_hdr),
1173 "struct member likely outside of __struct_group()");
1174
1175/*
1176 * Diagnostic Capability Descriptors for EDC ELS
1177 */
1178
1179/*
1180 * Diagnostic: Link Fault Capability Descriptor
1181 */
1182struct fc_diag_lnkflt_desc {
1183 __be32 desc_tag; /* Descriptor Tag (0x0001000D) */
1184 __be32 desc_len; /* Length of Descriptor (in bytes).
1185 * Size of descriptor excluding
1186 * desc_tag and desc_len fields.
1187 * 12 bytes
1188 */
1189 __be32 degrade_activate_threshold;
1190 __be32 degrade_deactivate_threshold;
1191 __be32 fec_degrade_interval;
1192};
1193
1194enum fc_edc_cg_signal_cap_types {
1195 /* Note: Capability: bits 31:4 Rsvd; bits 3:0 are capabilities */
1196 EDC_CG_SIG_NOTSUPPORTED = 0x00, /* neither supported */
1197 EDC_CG_SIG_WARN_ONLY = 0x01,
1198 EDC_CG_SIG_WARN_ALARM = 0x02, /* both supported */
1199};
1200
1201/*
1202 * Initializer useful for decoding table.
1203 * Please keep this in sync with the above definitions.
1204 */
1205#define FC_EDC_CG_SIGNAL_CAP_TYPES_INIT { \
1206 { EDC_CG_SIG_NOTSUPPORTED, "Signaling Not Supported" }, \
1207 { EDC_CG_SIG_WARN_ONLY, "Warning Signal" }, \
1208 { EDC_CG_SIG_WARN_ALARM, "Warning and Alarm Signals" }, \
1209}
1210
1211enum fc_diag_cg_sig_freq_types {
1212 EDC_CG_SIGFREQ_CNT_MIN = 1, /* Min Frequency Count */
1213 EDC_CG_SIGFREQ_CNT_MAX = 999, /* Max Frequency Count */
1214
1215 EDC_CG_SIGFREQ_SEC = 0x1, /* Units: seconds */
1216 EDC_CG_SIGFREQ_MSEC = 0x2, /* Units: milliseconds */
1217};
1218
1219struct fc_diag_cg_sig_freq {
1220 __be16 count; /* Time between signals
1221 * note: upper 6 bits rsvd
1222 */
1223 __be16 units; /* Time unit for count
1224 * note: upper 12 bits rsvd
1225 */
1226};
1227
1228/*
1229 * Diagnostic: Congestion Signaling Capability Descriptor
1230 */
1231struct fc_diag_cg_sig_desc {
1232 __be32 desc_tag; /* Descriptor Tag (0x0001000F) */
1233 __be32 desc_len; /* Length of Descriptor (in bytes).
1234 * Size of descriptor excluding
1235 * desc_tag and desc_len fields.
1236 * 16 bytes
1237 */
1238 __be32 xmt_signal_capability;
1239 struct fc_diag_cg_sig_freq xmt_signal_frequency;
1240 __be32 rcv_signal_capability;
1241 struct fc_diag_cg_sig_freq rcv_signal_frequency;
1242};
1243
1244/*
1245 * ELS_EDC - Exchange Diagnostic Capabilities
1246 */
1247struct fc_els_edc {
1248 __u8 edc_cmd; /* command (0x17) */
1249 __u8 edc_zero[3]; /* specified as zero - part of cmd */
1250 __be32 desc_len; /* Length of Descriptor List (in bytes).
1251 * Size of ELS excluding edc_cmd,
1252 * edc_zero and desc_len fields.
1253 */
1254 struct fc_tlv_desc desc[];
1255 /* Diagnostic Descriptor list */
1256};
1257
1258/*
1259 * ELS EDC LS_ACC Response.
1260 */
1261struct fc_els_edc_resp {
1262 struct fc_els_ls_acc acc_hdr;
1263 __be32 desc_list_len; /* Length of response (in
1264 * bytes). Excludes acc_hdr
1265 * and desc_list_len fields.
1266 */
1267 struct fc_els_lsri_desc lsri;
1268 struct fc_tlv_desc desc[];
1269 /* Supported Diagnostic Descriptor list */
1270};
1271
1272
1273#endif /* _FC_ELS_H_ */