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7725ccfd JH |
1 | /* |
2 | * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. | |
3 | * All rights reserved | |
4 | * www.brocade.com | |
5 | * | |
6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
10 | * published by the Free Software Foundation | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
18 | /** | |
19 | * @page ns_sm_info VPORT NS State Machine | |
20 | * | |
21 | * @section ns_sm_interactions VPORT NS State Machine Interactions | |
22 | * | |
23 | * @section ns_sm VPORT NS State Machine | |
24 | * img ns_sm.jpg | |
25 | */ | |
26 | #include <bfa.h> | |
27 | #include <bfa_svc.h> | |
28 | #include <bfa_iocfc.h> | |
29 | #include "fcs_lport.h" | |
30 | #include "fcs_rport.h" | |
31 | #include "fcs_trcmod.h" | |
32 | #include "fcs_fcxp.h" | |
33 | #include "fcs.h" | |
34 | #include "lport_priv.h" | |
35 | ||
36 | BFA_TRC_FILE(FCS, NS); | |
37 | ||
38 | /* | |
39 | * forward declarations | |
40 | */ | |
41 | static void bfa_fcs_port_ns_send_plogi(void *ns_cbarg, | |
42 | struct bfa_fcxp_s *fcxp_alloced); | |
43 | static void bfa_fcs_port_ns_send_rspn_id(void *ns_cbarg, | |
44 | struct bfa_fcxp_s *fcxp_alloced); | |
45 | static void bfa_fcs_port_ns_send_rft_id(void *ns_cbarg, | |
46 | struct bfa_fcxp_s *fcxp_alloced); | |
47 | static void bfa_fcs_port_ns_send_rff_id(void *ns_cbarg, | |
48 | struct bfa_fcxp_s *fcxp_alloced); | |
49 | static void bfa_fcs_port_ns_send_gid_ft(void *ns_cbarg, | |
50 | struct bfa_fcxp_s *fcxp_alloced); | |
51 | static void bfa_fcs_port_ns_timeout(void *arg); | |
52 | static void bfa_fcs_port_ns_plogi_response(void *fcsarg, | |
53 | struct bfa_fcxp_s *fcxp, | |
54 | void *cbarg, | |
55 | bfa_status_t req_status, | |
56 | u32 rsp_len, | |
57 | u32 resid_len, | |
58 | struct fchs_s *rsp_fchs); | |
59 | static void bfa_fcs_port_ns_rspn_id_response(void *fcsarg, | |
60 | struct bfa_fcxp_s *fcxp, | |
61 | void *cbarg, | |
62 | bfa_status_t req_status, | |
63 | u32 rsp_len, | |
64 | u32 resid_len, | |
65 | struct fchs_s *rsp_fchs); | |
66 | static void bfa_fcs_port_ns_rft_id_response(void *fcsarg, | |
67 | struct bfa_fcxp_s *fcxp, | |
68 | void *cbarg, | |
69 | bfa_status_t req_status, | |
70 | u32 rsp_len, | |
71 | u32 resid_len, | |
72 | struct fchs_s *rsp_fchs); | |
73 | static void bfa_fcs_port_ns_rff_id_response(void *fcsarg, | |
74 | struct bfa_fcxp_s *fcxp, | |
75 | void *cbarg, | |
76 | bfa_status_t req_status, | |
77 | u32 rsp_len, | |
78 | u32 resid_len, | |
79 | struct fchs_s *rsp_fchs); | |
80 | static void bfa_fcs_port_ns_gid_ft_response(void *fcsarg, | |
81 | struct bfa_fcxp_s *fcxp, | |
82 | void *cbarg, | |
83 | bfa_status_t req_status, | |
84 | u32 rsp_len, | |
85 | u32 resid_len, | |
86 | struct fchs_s *rsp_fchs); | |
87 | static void bfa_fcs_port_ns_process_gidft_pids(struct bfa_fcs_port_s *port, | |
88 | u32 *pid_buf, | |
89 | u32 n_pids); | |
90 | ||
91 | static void bfa_fcs_port_ns_boot_target_disc(struct bfa_fcs_port_s *port); | |
92 | /** | |
93 | * fcs_ns_sm FCS nameserver interface state machine | |
94 | */ | |
95 | ||
96 | /** | |
97 | * VPort NS State Machine events | |
98 | */ | |
99 | enum vport_ns_event { | |
100 | NSSM_EVENT_PORT_ONLINE = 1, | |
101 | NSSM_EVENT_PORT_OFFLINE = 2, | |
102 | NSSM_EVENT_PLOGI_SENT = 3, | |
103 | NSSM_EVENT_RSP_OK = 4, | |
104 | NSSM_EVENT_RSP_ERROR = 5, | |
105 | NSSM_EVENT_TIMEOUT = 6, | |
106 | NSSM_EVENT_NS_QUERY = 7, | |
107 | NSSM_EVENT_RSPNID_SENT = 8, | |
108 | NSSM_EVENT_RFTID_SENT = 9, | |
109 | NSSM_EVENT_RFFID_SENT = 10, | |
110 | NSSM_EVENT_GIDFT_SENT = 11, | |
111 | }; | |
112 | ||
113 | static void bfa_fcs_port_ns_sm_offline(struct bfa_fcs_port_ns_s *ns, | |
114 | enum vport_ns_event event); | |
115 | static void bfa_fcs_port_ns_sm_plogi_sending(struct bfa_fcs_port_ns_s *ns, | |
116 | enum vport_ns_event event); | |
117 | static void bfa_fcs_port_ns_sm_plogi(struct bfa_fcs_port_ns_s *ns, | |
118 | enum vport_ns_event event); | |
119 | static void bfa_fcs_port_ns_sm_plogi_retry(struct bfa_fcs_port_ns_s *ns, | |
120 | enum vport_ns_event event); | |
121 | static void bfa_fcs_port_ns_sm_sending_rspn_id(struct bfa_fcs_port_ns_s *ns, | |
122 | enum vport_ns_event event); | |
123 | static void bfa_fcs_port_ns_sm_rspn_id(struct bfa_fcs_port_ns_s *ns, | |
124 | enum vport_ns_event event); | |
125 | static void bfa_fcs_port_ns_sm_rspn_id_retry(struct bfa_fcs_port_ns_s *ns, | |
126 | enum vport_ns_event event); | |
127 | static void bfa_fcs_port_ns_sm_sending_rft_id(struct bfa_fcs_port_ns_s *ns, | |
128 | enum vport_ns_event event); | |
129 | static void bfa_fcs_port_ns_sm_rft_id_retry(struct bfa_fcs_port_ns_s *ns, | |
130 | enum vport_ns_event event); | |
131 | static void bfa_fcs_port_ns_sm_rft_id(struct bfa_fcs_port_ns_s *ns, | |
132 | enum vport_ns_event event); | |
133 | static void bfa_fcs_port_ns_sm_sending_rff_id(struct bfa_fcs_port_ns_s *ns, | |
134 | enum vport_ns_event event); | |
135 | static void bfa_fcs_port_ns_sm_rff_id_retry(struct bfa_fcs_port_ns_s *ns, | |
136 | enum vport_ns_event event); | |
137 | static void bfa_fcs_port_ns_sm_rff_id(struct bfa_fcs_port_ns_s *ns, | |
138 | enum vport_ns_event event); | |
139 | static void bfa_fcs_port_ns_sm_sending_gid_ft(struct bfa_fcs_port_ns_s *ns, | |
140 | enum vport_ns_event event); | |
141 | static void bfa_fcs_port_ns_sm_gid_ft(struct bfa_fcs_port_ns_s *ns, | |
142 | enum vport_ns_event event); | |
143 | static void bfa_fcs_port_ns_sm_gid_ft_retry(struct bfa_fcs_port_ns_s *ns, | |
144 | enum vport_ns_event event); | |
145 | static void bfa_fcs_port_ns_sm_online(struct bfa_fcs_port_ns_s *ns, | |
146 | enum vport_ns_event event); | |
147 | /** | |
148 | * Start in offline state - awaiting linkup | |
149 | */ | |
150 | static void | |
151 | bfa_fcs_port_ns_sm_offline(struct bfa_fcs_port_ns_s *ns, | |
152 | enum vport_ns_event event) | |
153 | { | |
154 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
155 | bfa_trc(ns->port->fcs, event); | |
156 | ||
157 | switch (event) { | |
158 | case NSSM_EVENT_PORT_ONLINE: | |
159 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi_sending); | |
160 | bfa_fcs_port_ns_send_plogi(ns, NULL); | |
161 | break; | |
162 | ||
163 | case NSSM_EVENT_PORT_OFFLINE: | |
164 | break; | |
165 | ||
166 | default: | |
167 | bfa_assert(0); | |
168 | } | |
169 | } | |
170 | ||
171 | static void | |
172 | bfa_fcs_port_ns_sm_plogi_sending(struct bfa_fcs_port_ns_s *ns, | |
173 | enum vport_ns_event event) | |
174 | { | |
175 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
176 | bfa_trc(ns->port->fcs, event); | |
177 | ||
178 | switch (event) { | |
179 | case NSSM_EVENT_PLOGI_SENT: | |
180 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi); | |
181 | break; | |
182 | ||
183 | case NSSM_EVENT_PORT_OFFLINE: | |
184 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
185 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port), | |
186 | &ns->fcxp_wqe); | |
187 | break; | |
188 | ||
189 | default: | |
190 | bfa_assert(0); | |
191 | } | |
192 | } | |
193 | ||
194 | static void | |
195 | bfa_fcs_port_ns_sm_plogi(struct bfa_fcs_port_ns_s *ns, | |
196 | enum vport_ns_event event) | |
197 | { | |
198 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
199 | bfa_trc(ns->port->fcs, event); | |
200 | ||
201 | switch (event) { | |
202 | case NSSM_EVENT_RSP_ERROR: | |
203 | /* | |
204 | * Start timer for a delayed retry | |
205 | */ | |
206 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi_retry); | |
207 | ns->port->stats.ns_retries++; | |
208 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port), &ns->timer, | |
209 | bfa_fcs_port_ns_timeout, ns, | |
210 | BFA_FCS_RETRY_TIMEOUT); | |
211 | break; | |
212 | ||
213 | case NSSM_EVENT_RSP_OK: | |
214 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rspn_id); | |
215 | bfa_fcs_port_ns_send_rspn_id(ns, NULL); | |
216 | break; | |
217 | ||
218 | case NSSM_EVENT_PORT_OFFLINE: | |
219 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
220 | bfa_fcxp_discard(ns->fcxp); | |
221 | break; | |
222 | ||
223 | default: | |
224 | bfa_assert(0); | |
225 | } | |
226 | } | |
227 | ||
228 | static void | |
229 | bfa_fcs_port_ns_sm_plogi_retry(struct bfa_fcs_port_ns_s *ns, | |
230 | enum vport_ns_event event) | |
231 | { | |
232 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
233 | bfa_trc(ns->port->fcs, event); | |
234 | ||
235 | switch (event) { | |
236 | case NSSM_EVENT_TIMEOUT: | |
237 | /* | |
238 | * Retry Timer Expired. Re-send | |
239 | */ | |
240 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi_sending); | |
241 | bfa_fcs_port_ns_send_plogi(ns, NULL); | |
242 | break; | |
243 | ||
244 | case NSSM_EVENT_PORT_OFFLINE: | |
245 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
246 | bfa_timer_stop(&ns->timer); | |
247 | break; | |
248 | ||
249 | default: | |
250 | bfa_assert(0); | |
251 | } | |
252 | } | |
253 | ||
254 | static void | |
255 | bfa_fcs_port_ns_sm_sending_rspn_id(struct bfa_fcs_port_ns_s *ns, | |
256 | enum vport_ns_event event) | |
257 | { | |
258 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
259 | bfa_trc(ns->port->fcs, event); | |
260 | ||
261 | switch (event) { | |
262 | case NSSM_EVENT_RSPNID_SENT: | |
263 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rspn_id); | |
264 | break; | |
265 | ||
266 | case NSSM_EVENT_PORT_OFFLINE: | |
267 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
268 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port), | |
269 | &ns->fcxp_wqe); | |
270 | break; | |
271 | ||
272 | default: | |
273 | bfa_assert(0); | |
274 | } | |
275 | } | |
276 | ||
277 | static void | |
278 | bfa_fcs_port_ns_sm_rspn_id(struct bfa_fcs_port_ns_s *ns, | |
279 | enum vport_ns_event event) | |
280 | { | |
281 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
282 | bfa_trc(ns->port->fcs, event); | |
283 | ||
284 | switch (event) { | |
285 | case NSSM_EVENT_RSP_ERROR: | |
286 | /* | |
287 | * Start timer for a delayed retry | |
288 | */ | |
289 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rspn_id_retry); | |
290 | ns->port->stats.ns_retries++; | |
291 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port), &ns->timer, | |
292 | bfa_fcs_port_ns_timeout, ns, | |
293 | BFA_FCS_RETRY_TIMEOUT); | |
294 | break; | |
295 | ||
296 | case NSSM_EVENT_RSP_OK: | |
297 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rft_id); | |
298 | bfa_fcs_port_ns_send_rft_id(ns, NULL); | |
299 | break; | |
300 | ||
301 | case NSSM_EVENT_PORT_OFFLINE: | |
302 | bfa_fcxp_discard(ns->fcxp); | |
303 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
304 | break; | |
305 | ||
306 | default: | |
307 | bfa_assert(0); | |
308 | } | |
309 | } | |
310 | ||
311 | static void | |
312 | bfa_fcs_port_ns_sm_rspn_id_retry(struct bfa_fcs_port_ns_s *ns, | |
313 | enum vport_ns_event event) | |
314 | { | |
315 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
316 | bfa_trc(ns->port->fcs, event); | |
317 | ||
318 | switch (event) { | |
319 | case NSSM_EVENT_TIMEOUT: | |
320 | /* | |
321 | * Retry Timer Expired. Re-send | |
322 | */ | |
323 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rspn_id); | |
324 | bfa_fcs_port_ns_send_rspn_id(ns, NULL); | |
325 | break; | |
326 | ||
327 | case NSSM_EVENT_PORT_OFFLINE: | |
328 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
329 | bfa_timer_stop(&ns->timer); | |
330 | break; | |
331 | ||
332 | default: | |
333 | bfa_assert(0); | |
334 | } | |
335 | } | |
336 | ||
337 | static void | |
338 | bfa_fcs_port_ns_sm_sending_rft_id(struct bfa_fcs_port_ns_s *ns, | |
339 | enum vport_ns_event event) | |
340 | { | |
341 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
342 | bfa_trc(ns->port->fcs, event); | |
343 | ||
344 | switch (event) { | |
345 | case NSSM_EVENT_RFTID_SENT: | |
346 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rft_id); | |
347 | break; | |
348 | ||
349 | case NSSM_EVENT_PORT_OFFLINE: | |
350 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
351 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port), | |
352 | &ns->fcxp_wqe); | |
353 | break; | |
354 | ||
355 | default: | |
356 | bfa_assert(0); | |
357 | } | |
358 | } | |
359 | ||
360 | static void | |
361 | bfa_fcs_port_ns_sm_rft_id(struct bfa_fcs_port_ns_s *ns, | |
362 | enum vport_ns_event event) | |
363 | { | |
364 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
365 | bfa_trc(ns->port->fcs, event); | |
366 | ||
367 | switch (event) { | |
368 | case NSSM_EVENT_RSP_OK: | |
369 | /* | |
370 | * Now move to register FC4 Features | |
371 | */ | |
372 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rff_id); | |
373 | bfa_fcs_port_ns_send_rff_id(ns, NULL); | |
374 | break; | |
375 | ||
376 | case NSSM_EVENT_RSP_ERROR: | |
377 | /* | |
378 | * Start timer for a delayed retry | |
379 | */ | |
380 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rft_id_retry); | |
381 | ns->port->stats.ns_retries++; | |
382 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port), &ns->timer, | |
383 | bfa_fcs_port_ns_timeout, ns, | |
384 | BFA_FCS_RETRY_TIMEOUT); | |
385 | break; | |
386 | ||
387 | case NSSM_EVENT_PORT_OFFLINE: | |
388 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
389 | bfa_fcxp_discard(ns->fcxp); | |
390 | break; | |
391 | ||
392 | default: | |
393 | bfa_assert(0); | |
394 | } | |
395 | } | |
396 | ||
397 | static void | |
398 | bfa_fcs_port_ns_sm_rft_id_retry(struct bfa_fcs_port_ns_s *ns, | |
399 | enum vport_ns_event event) | |
400 | { | |
401 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
402 | bfa_trc(ns->port->fcs, event); | |
403 | ||
404 | switch (event) { | |
405 | case NSSM_EVENT_TIMEOUT: | |
406 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rft_id); | |
407 | bfa_fcs_port_ns_send_rft_id(ns, NULL); | |
408 | break; | |
409 | ||
410 | case NSSM_EVENT_PORT_OFFLINE: | |
411 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
412 | bfa_timer_stop(&ns->timer); | |
413 | break; | |
414 | ||
415 | default: | |
416 | bfa_assert(0); | |
417 | } | |
418 | } | |
419 | ||
420 | static void | |
421 | bfa_fcs_port_ns_sm_sending_rff_id(struct bfa_fcs_port_ns_s *ns, | |
422 | enum vport_ns_event event) | |
423 | { | |
424 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
425 | bfa_trc(ns->port->fcs, event); | |
426 | ||
427 | switch (event) { | |
428 | case NSSM_EVENT_RFFID_SENT: | |
429 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rff_id); | |
430 | break; | |
431 | ||
432 | case NSSM_EVENT_PORT_OFFLINE: | |
433 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
434 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port), | |
435 | &ns->fcxp_wqe); | |
436 | break; | |
437 | ||
438 | default: | |
439 | bfa_assert(0); | |
440 | } | |
441 | } | |
442 | ||
443 | static void | |
444 | bfa_fcs_port_ns_sm_rff_id(struct bfa_fcs_port_ns_s *ns, | |
445 | enum vport_ns_event event) | |
446 | { | |
447 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
448 | bfa_trc(ns->port->fcs, event); | |
449 | ||
450 | switch (event) { | |
451 | case NSSM_EVENT_RSP_OK: | |
452 | ||
453 | /* | |
454 | * If min cfg mode is enabled, we donot initiate rport | |
455 | * discovery with the fabric. Instead, we will retrieve the | |
456 | * boot targets from HAL/FW. | |
457 | */ | |
458 | if (__fcs_min_cfg(ns->port->fcs)) { | |
459 | bfa_fcs_port_ns_boot_target_disc(ns->port); | |
460 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_online); | |
461 | return; | |
462 | } | |
463 | ||
464 | /* | |
465 | * If the port role is Initiator Mode issue NS query. | |
466 | * If it is Target Mode, skip this and go to online. | |
467 | */ | |
468 | if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) { | |
469 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_gid_ft); | |
470 | bfa_fcs_port_ns_send_gid_ft(ns, NULL); | |
471 | } else if (BFA_FCS_VPORT_IS_TARGET_MODE(ns->port)) { | |
472 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_online); | |
473 | } | |
474 | /* | |
475 | * kick off mgmt srvr state machine | |
476 | */ | |
477 | bfa_fcs_port_ms_online(ns->port); | |
478 | break; | |
479 | ||
480 | case NSSM_EVENT_RSP_ERROR: | |
481 | /* | |
482 | * Start timer for a delayed retry | |
483 | */ | |
484 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rff_id_retry); | |
485 | ns->port->stats.ns_retries++; | |
486 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port), &ns->timer, | |
487 | bfa_fcs_port_ns_timeout, ns, | |
488 | BFA_FCS_RETRY_TIMEOUT); | |
489 | break; | |
490 | ||
491 | case NSSM_EVENT_PORT_OFFLINE: | |
492 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
493 | bfa_fcxp_discard(ns->fcxp); | |
494 | break; | |
495 | ||
496 | default: | |
497 | bfa_assert(0); | |
498 | } | |
499 | } | |
500 | ||
501 | static void | |
502 | bfa_fcs_port_ns_sm_rff_id_retry(struct bfa_fcs_port_ns_s *ns, | |
503 | enum vport_ns_event event) | |
504 | { | |
505 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
506 | bfa_trc(ns->port->fcs, event); | |
507 | ||
508 | switch (event) { | |
509 | case NSSM_EVENT_TIMEOUT: | |
510 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rff_id); | |
511 | bfa_fcs_port_ns_send_rff_id(ns, NULL); | |
512 | break; | |
513 | ||
514 | case NSSM_EVENT_PORT_OFFLINE: | |
515 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
516 | bfa_timer_stop(&ns->timer); | |
517 | break; | |
518 | ||
519 | default: | |
520 | bfa_assert(0); | |
521 | } | |
522 | } | |
523 | static void | |
524 | bfa_fcs_port_ns_sm_sending_gid_ft(struct bfa_fcs_port_ns_s *ns, | |
525 | enum vport_ns_event event) | |
526 | { | |
527 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
528 | bfa_trc(ns->port->fcs, event); | |
529 | ||
530 | switch (event) { | |
531 | case NSSM_EVENT_GIDFT_SENT: | |
532 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_gid_ft); | |
533 | break; | |
534 | ||
535 | case NSSM_EVENT_PORT_OFFLINE: | |
536 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
537 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port), | |
538 | &ns->fcxp_wqe); | |
539 | break; | |
540 | ||
541 | default: | |
542 | bfa_assert(0); | |
543 | } | |
544 | } | |
545 | ||
546 | static void | |
547 | bfa_fcs_port_ns_sm_gid_ft(struct bfa_fcs_port_ns_s *ns, | |
548 | enum vport_ns_event event) | |
549 | { | |
550 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
551 | bfa_trc(ns->port->fcs, event); | |
552 | ||
553 | switch (event) { | |
554 | case NSSM_EVENT_RSP_OK: | |
555 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_online); | |
556 | break; | |
557 | ||
558 | case NSSM_EVENT_RSP_ERROR: | |
559 | /* | |
560 | * TBD: for certain reject codes, we don't need to retry | |
561 | */ | |
562 | /* | |
563 | * Start timer for a delayed retry | |
564 | */ | |
565 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_gid_ft_retry); | |
566 | ns->port->stats.ns_retries++; | |
567 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port), &ns->timer, | |
568 | bfa_fcs_port_ns_timeout, ns, | |
569 | BFA_FCS_RETRY_TIMEOUT); | |
570 | break; | |
571 | ||
572 | case NSSM_EVENT_PORT_OFFLINE: | |
573 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
574 | bfa_fcxp_discard(ns->fcxp); | |
575 | break; | |
576 | ||
577 | default: | |
578 | bfa_assert(0); | |
579 | } | |
580 | } | |
581 | ||
582 | static void | |
583 | bfa_fcs_port_ns_sm_gid_ft_retry(struct bfa_fcs_port_ns_s *ns, | |
584 | enum vport_ns_event event) | |
585 | { | |
586 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
587 | bfa_trc(ns->port->fcs, event); | |
588 | ||
589 | switch (event) { | |
590 | case NSSM_EVENT_TIMEOUT: | |
591 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_gid_ft); | |
592 | bfa_fcs_port_ns_send_gid_ft(ns, NULL); | |
593 | break; | |
594 | ||
595 | case NSSM_EVENT_PORT_OFFLINE: | |
596 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
597 | bfa_timer_stop(&ns->timer); | |
598 | break; | |
599 | ||
600 | default: | |
601 | bfa_assert(0); | |
602 | } | |
603 | } | |
604 | ||
605 | static void | |
606 | bfa_fcs_port_ns_sm_online(struct bfa_fcs_port_ns_s *ns, | |
607 | enum vport_ns_event event) | |
608 | { | |
609 | bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn); | |
610 | bfa_trc(ns->port->fcs, event); | |
611 | ||
612 | switch (event) { | |
613 | case NSSM_EVENT_PORT_OFFLINE: | |
614 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
615 | break; | |
616 | ||
617 | case NSSM_EVENT_NS_QUERY: | |
618 | /* | |
619 | * If the port role is Initiator Mode issue NS query. | |
620 | * If it is Target Mode, skip this and go to online. | |
621 | */ | |
622 | if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) { | |
623 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_gid_ft); | |
624 | bfa_fcs_port_ns_send_gid_ft(ns, NULL); | |
625 | }; | |
626 | break; | |
627 | ||
628 | default: | |
629 | bfa_assert(0); | |
630 | } | |
631 | } | |
632 | ||
633 | ||
634 | ||
635 | /** | |
636 | * ns_pvt Nameserver local functions | |
637 | */ | |
638 | ||
639 | static void | |
640 | bfa_fcs_port_ns_send_plogi(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
641 | { | |
642 | struct bfa_fcs_port_ns_s *ns = ns_cbarg; | |
643 | struct bfa_fcs_port_s *port = ns->port; | |
644 | struct fchs_s fchs; | |
645 | int len; | |
646 | struct bfa_fcxp_s *fcxp; | |
647 | ||
648 | bfa_trc(port->fcs, port->pid); | |
649 | ||
650 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
651 | if (!fcxp) { | |
652 | port->stats.ns_plogi_alloc_wait++; | |
653 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe, | |
654 | bfa_fcs_port_ns_send_plogi, ns); | |
655 | return; | |
656 | } | |
657 | ns->fcxp = fcxp; | |
658 | ||
659 | len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
660 | bfa_os_hton3b(FC_NAME_SERVER), | |
661 | bfa_fcs_port_get_fcid(port), 0, | |
662 | port->port_cfg.pwwn, port->port_cfg.nwwn, | |
663 | bfa_pport_get_maxfrsize(port->fcs->bfa)); | |
664 | ||
665 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
666 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_plogi_response, | |
667 | (void *)ns, FC_MAX_PDUSZ, FC_RA_TOV); | |
668 | port->stats.ns_plogi_sent++; | |
669 | ||
670 | bfa_sm_send_event(ns, NSSM_EVENT_PLOGI_SENT); | |
671 | } | |
672 | ||
673 | static void | |
674 | bfa_fcs_port_ns_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
675 | void *cbarg, bfa_status_t req_status, | |
676 | u32 rsp_len, u32 resid_len, | |
677 | struct fchs_s *rsp_fchs) | |
678 | { | |
679 | struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg; | |
680 | struct bfa_fcs_port_s *port = ns->port; | |
681 | /* struct fc_logi_s *plogi_resp; */ | |
682 | struct fc_els_cmd_s *els_cmd; | |
683 | struct fc_ls_rjt_s *ls_rjt; | |
684 | ||
685 | bfa_trc(port->fcs, req_status); | |
686 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
687 | ||
688 | /* | |
689 | * Sanity Checks | |
690 | */ | |
691 | if (req_status != BFA_STATUS_OK) { | |
692 | bfa_trc(port->fcs, req_status); | |
693 | port->stats.ns_plogi_rsp_err++; | |
694 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
695 | return; | |
696 | } | |
697 | ||
698 | els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp); | |
699 | ||
700 | switch (els_cmd->els_code) { | |
701 | ||
702 | case FC_ELS_ACC: | |
703 | if (rsp_len < sizeof(struct fc_logi_s)) { | |
704 | bfa_trc(port->fcs, rsp_len); | |
705 | port->stats.ns_plogi_acc_err++; | |
706 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
707 | break; | |
708 | } | |
709 | port->stats.ns_plogi_accepts++; | |
710 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
711 | break; | |
712 | ||
713 | case FC_ELS_LS_RJT: | |
714 | ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp); | |
715 | ||
716 | bfa_trc(port->fcs, ls_rjt->reason_code); | |
717 | bfa_trc(port->fcs, ls_rjt->reason_code_expl); | |
718 | ||
719 | port->stats.ns_rejects++; | |
720 | ||
721 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
722 | break; | |
723 | ||
724 | default: | |
725 | port->stats.ns_plogi_unknown_rsp++; | |
726 | bfa_trc(port->fcs, els_cmd->els_code); | |
727 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
728 | } | |
729 | } | |
730 | ||
731 | /** | |
732 | * Register the symbolic port name. | |
733 | */ | |
734 | static void | |
735 | bfa_fcs_port_ns_send_rspn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
736 | { | |
737 | struct bfa_fcs_port_ns_s *ns = ns_cbarg; | |
738 | struct bfa_fcs_port_s *port = ns->port; | |
739 | struct fchs_s fchs; | |
740 | int len; | |
741 | struct bfa_fcxp_s *fcxp; | |
742 | u8 symbl[256]; | |
743 | u8 *psymbl = &symbl[0]; | |
744 | ||
745 | bfa_os_memset(symbl, 0, sizeof(symbl)); | |
746 | ||
747 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
748 | ||
749 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
750 | if (!fcxp) { | |
751 | port->stats.ns_rspnid_alloc_wait++; | |
752 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe, | |
753 | bfa_fcs_port_ns_send_rspn_id, ns); | |
754 | return; | |
755 | } | |
756 | ns->fcxp = fcxp; | |
757 | ||
758 | /* | |
759 | * for V-Port, form a Port Symbolic Name | |
760 | */ | |
761 | if (port->vport) { | |
762 | /**For Vports, | |
763 | * we append the vport's port symbolic name to that of the base port. | |
764 | */ | |
765 | ||
766 | strncpy((char *)psymbl, | |
767 | (char *) | |
768 | &(bfa_fcs_port_get_psym_name | |
769 | (bfa_fcs_get_base_port(port->fcs))), | |
770 | strlen((char *) | |
771 | &bfa_fcs_port_get_psym_name(bfa_fcs_get_base_port | |
772 | (port->fcs)))); | |
773 | ||
774 | /* | |
775 | * Ensure we have a null terminating string. | |
776 | */ | |
777 | ((char *) | |
778 | psymbl)[strlen((char *) | |
779 | &bfa_fcs_port_get_psym_name | |
780 | (bfa_fcs_get_base_port(port->fcs)))] = 0; | |
781 | ||
782 | strncat((char *)psymbl, | |
783 | (char *)&(bfa_fcs_port_get_psym_name(port)), | |
784 | strlen((char *)&bfa_fcs_port_get_psym_name(port))); | |
785 | } else { | |
786 | psymbl = (u8 *) &(bfa_fcs_port_get_psym_name(port)); | |
787 | } | |
788 | ||
789 | len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
790 | bfa_fcs_port_get_fcid(port), 0, psymbl); | |
791 | ||
792 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
793 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_rspn_id_response, | |
794 | (void *)ns, FC_MAX_PDUSZ, FC_RA_TOV); | |
795 | ||
796 | port->stats.ns_rspnid_sent++; | |
797 | ||
798 | bfa_sm_send_event(ns, NSSM_EVENT_RSPNID_SENT); | |
799 | } | |
800 | ||
801 | static void | |
802 | bfa_fcs_port_ns_rspn_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
803 | void *cbarg, bfa_status_t req_status, | |
804 | u32 rsp_len, u32 resid_len, | |
805 | struct fchs_s *rsp_fchs) | |
806 | { | |
807 | struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg; | |
808 | struct bfa_fcs_port_s *port = ns->port; | |
809 | struct ct_hdr_s *cthdr = NULL; | |
810 | ||
811 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
812 | ||
813 | /* | |
814 | * Sanity Checks | |
815 | */ | |
816 | if (req_status != BFA_STATUS_OK) { | |
817 | bfa_trc(port->fcs, req_status); | |
818 | port->stats.ns_rspnid_rsp_err++; | |
819 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
820 | return; | |
821 | } | |
822 | ||
823 | cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); | |
824 | cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); | |
825 | ||
826 | if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) { | |
827 | port->stats.ns_rspnid_accepts++; | |
828 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
829 | return; | |
830 | } | |
831 | ||
832 | port->stats.ns_rspnid_rejects++; | |
833 | bfa_trc(port->fcs, cthdr->reason_code); | |
834 | bfa_trc(port->fcs, cthdr->exp_code); | |
835 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
836 | } | |
837 | ||
838 | /** | |
839 | * Register FC4-Types | |
840 | * TBD, Need to retrieve this from the OS driver, in case IPFC is enabled ? | |
841 | */ | |
842 | static void | |
843 | bfa_fcs_port_ns_send_rft_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
844 | { | |
845 | struct bfa_fcs_port_ns_s *ns = ns_cbarg; | |
846 | struct bfa_fcs_port_s *port = ns->port; | |
847 | struct fchs_s fchs; | |
848 | int len; | |
849 | struct bfa_fcxp_s *fcxp; | |
850 | ||
851 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
852 | ||
853 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
854 | if (!fcxp) { | |
855 | port->stats.ns_rftid_alloc_wait++; | |
856 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe, | |
857 | bfa_fcs_port_ns_send_rft_id, ns); | |
858 | return; | |
859 | } | |
860 | ns->fcxp = fcxp; | |
861 | ||
862 | len = fc_rftid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
863 | bfa_fcs_port_get_fcid(port), 0, | |
864 | port->port_cfg.roles); | |
865 | ||
866 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
867 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_rft_id_response, | |
868 | (void *)ns, FC_MAX_PDUSZ, FC_RA_TOV); | |
869 | ||
870 | port->stats.ns_rftid_sent++; | |
871 | bfa_sm_send_event(ns, NSSM_EVENT_RFTID_SENT); | |
872 | } | |
873 | ||
874 | static void | |
875 | bfa_fcs_port_ns_rft_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
876 | void *cbarg, bfa_status_t req_status, | |
877 | u32 rsp_len, u32 resid_len, | |
878 | struct fchs_s *rsp_fchs) | |
879 | { | |
880 | struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg; | |
881 | struct bfa_fcs_port_s *port = ns->port; | |
882 | struct ct_hdr_s *cthdr = NULL; | |
883 | ||
884 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
885 | ||
886 | /* | |
887 | * Sanity Checks | |
888 | */ | |
889 | if (req_status != BFA_STATUS_OK) { | |
890 | bfa_trc(port->fcs, req_status); | |
891 | port->stats.ns_rftid_rsp_err++; | |
892 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
893 | return; | |
894 | } | |
895 | ||
896 | cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); | |
897 | cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); | |
898 | ||
899 | if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) { | |
900 | port->stats.ns_rftid_accepts++; | |
901 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
902 | return; | |
903 | } | |
904 | ||
905 | port->stats.ns_rftid_rejects++; | |
906 | bfa_trc(port->fcs, cthdr->reason_code); | |
907 | bfa_trc(port->fcs, cthdr->exp_code); | |
908 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
909 | } | |
910 | ||
911 | /** | |
912 | * Register FC4-Features : Should be done after RFT_ID | |
913 | */ | |
914 | static void | |
915 | bfa_fcs_port_ns_send_rff_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
916 | { | |
917 | struct bfa_fcs_port_ns_s *ns = ns_cbarg; | |
918 | struct bfa_fcs_port_s *port = ns->port; | |
919 | struct fchs_s fchs; | |
920 | int len; | |
921 | struct bfa_fcxp_s *fcxp; | |
922 | u8 fc4_ftrs = 0; | |
923 | ||
924 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
925 | ||
926 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
927 | if (!fcxp) { | |
928 | port->stats.ns_rffid_alloc_wait++; | |
929 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe, | |
930 | bfa_fcs_port_ns_send_rff_id, ns); | |
931 | return; | |
932 | } | |
933 | ns->fcxp = fcxp; | |
934 | ||
f8ceafde | 935 | if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) |
7725ccfd | 936 | fc4_ftrs = FC_GS_FCP_FC4_FEATURE_INITIATOR; |
f8ceafde | 937 | else if (BFA_FCS_VPORT_IS_TARGET_MODE(ns->port)) |
7725ccfd | 938 | fc4_ftrs = FC_GS_FCP_FC4_FEATURE_TARGET; |
7725ccfd JH |
939 | |
940 | len = fc_rffid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
941 | bfa_fcs_port_get_fcid(port), 0, FC_TYPE_FCP, | |
942 | fc4_ftrs); | |
943 | ||
944 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
945 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_rff_id_response, | |
946 | (void *)ns, FC_MAX_PDUSZ, FC_RA_TOV); | |
947 | ||
948 | port->stats.ns_rffid_sent++; | |
949 | bfa_sm_send_event(ns, NSSM_EVENT_RFFID_SENT); | |
950 | } | |
951 | ||
952 | static void | |
953 | bfa_fcs_port_ns_rff_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
954 | void *cbarg, bfa_status_t req_status, | |
955 | u32 rsp_len, u32 resid_len, | |
956 | struct fchs_s *rsp_fchs) | |
957 | { | |
958 | struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg; | |
959 | struct bfa_fcs_port_s *port = ns->port; | |
960 | struct ct_hdr_s *cthdr = NULL; | |
961 | ||
962 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
963 | ||
964 | /* | |
965 | * Sanity Checks | |
966 | */ | |
967 | if (req_status != BFA_STATUS_OK) { | |
968 | bfa_trc(port->fcs, req_status); | |
969 | port->stats.ns_rffid_rsp_err++; | |
970 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
971 | return; | |
972 | } | |
973 | ||
974 | cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); | |
975 | cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); | |
976 | ||
977 | if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) { | |
978 | port->stats.ns_rffid_accepts++; | |
979 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
980 | return; | |
981 | } | |
982 | ||
983 | port->stats.ns_rffid_rejects++; | |
984 | bfa_trc(port->fcs, cthdr->reason_code); | |
985 | bfa_trc(port->fcs, cthdr->exp_code); | |
986 | ||
987 | if (cthdr->reason_code == CT_RSN_NOT_SUPP) { | |
988 | /* | |
989 | * if this command is not supported, we don't retry | |
990 | */ | |
991 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
992 | } else { | |
993 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
994 | } | |
995 | } | |
996 | ||
997 | /** | |
998 | * Query Fabric for FC4-Types Devices. | |
999 | * | |
1000 | * TBD : Need to use a local (FCS private) response buffer, since the response | |
1001 | * can be larger than 2K. | |
1002 | */ | |
1003 | static void | |
1004 | bfa_fcs_port_ns_send_gid_ft(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
1005 | { | |
1006 | struct bfa_fcs_port_ns_s *ns = ns_cbarg; | |
1007 | struct bfa_fcs_port_s *port = ns->port; | |
1008 | struct fchs_s fchs; | |
1009 | int len; | |
1010 | struct bfa_fcxp_s *fcxp; | |
1011 | ||
1012 | bfa_trc(port->fcs, port->pid); | |
1013 | ||
1014 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
1015 | if (!fcxp) { | |
1016 | port->stats.ns_gidft_alloc_wait++; | |
1017 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe, | |
1018 | bfa_fcs_port_ns_send_gid_ft, ns); | |
1019 | return; | |
1020 | } | |
1021 | ns->fcxp = fcxp; | |
1022 | ||
1023 | /* | |
1024 | * This query is only initiated for FCP initiator mode. | |
1025 | */ | |
1026 | len = fc_gid_ft_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), ns->port->pid, | |
1027 | FC_TYPE_FCP); | |
1028 | ||
1029 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
1030 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_gid_ft_response, | |
1031 | (void *)ns, bfa_fcxp_get_maxrsp(port->fcs->bfa), | |
1032 | FC_RA_TOV); | |
1033 | ||
1034 | port->stats.ns_gidft_sent++; | |
1035 | ||
1036 | bfa_sm_send_event(ns, NSSM_EVENT_GIDFT_SENT); | |
1037 | } | |
1038 | ||
1039 | static void | |
1040 | bfa_fcs_port_ns_gid_ft_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
1041 | void *cbarg, bfa_status_t req_status, | |
1042 | u32 rsp_len, u32 resid_len, | |
1043 | struct fchs_s *rsp_fchs) | |
1044 | { | |
1045 | struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg; | |
1046 | struct bfa_fcs_port_s *port = ns->port; | |
1047 | struct ct_hdr_s *cthdr = NULL; | |
1048 | u32 n_pids; | |
1049 | ||
1050 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
1051 | ||
1052 | /* | |
1053 | * Sanity Checks | |
1054 | */ | |
1055 | if (req_status != BFA_STATUS_OK) { | |
1056 | bfa_trc(port->fcs, req_status); | |
1057 | port->stats.ns_gidft_rsp_err++; | |
1058 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
1059 | return; | |
1060 | } | |
1061 | ||
1062 | if (resid_len != 0) { | |
1063 | /* | |
1064 | * TBD : we will need to allocate a larger buffer & retry the | |
1065 | * command | |
1066 | */ | |
1067 | bfa_trc(port->fcs, rsp_len); | |
1068 | bfa_trc(port->fcs, resid_len); | |
1069 | return; | |
1070 | } | |
1071 | ||
1072 | cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); | |
1073 | cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); | |
1074 | ||
1075 | switch (cthdr->cmd_rsp_code) { | |
1076 | ||
1077 | case CT_RSP_ACCEPT: | |
1078 | ||
1079 | port->stats.ns_gidft_accepts++; | |
1080 | n_pids = (fc_get_ctresp_pyld_len(rsp_len) / sizeof(u32)); | |
1081 | bfa_trc(port->fcs, n_pids); | |
1082 | bfa_fcs_port_ns_process_gidft_pids(port, | |
1083 | (u32 *) (cthdr + 1), | |
1084 | n_pids); | |
1085 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
1086 | break; | |
1087 | ||
1088 | case CT_RSP_REJECT: | |
1089 | ||
1090 | /* | |
1091 | * Check the reason code & explanation. | |
1092 | * There may not have been any FC4 devices in the fabric | |
1093 | */ | |
1094 | port->stats.ns_gidft_rejects++; | |
1095 | bfa_trc(port->fcs, cthdr->reason_code); | |
1096 | bfa_trc(port->fcs, cthdr->exp_code); | |
1097 | ||
1098 | if ((cthdr->reason_code == CT_RSN_UNABLE_TO_PERF) | |
1099 | && (cthdr->exp_code == CT_NS_EXP_FT_NOT_REG)) { | |
1100 | ||
1101 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK); | |
1102 | } else { | |
1103 | /* | |
1104 | * for all other errors, retry | |
1105 | */ | |
1106 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
1107 | } | |
1108 | break; | |
1109 | ||
1110 | default: | |
1111 | port->stats.ns_gidft_unknown_rsp++; | |
1112 | bfa_trc(port->fcs, cthdr->cmd_rsp_code); | |
1113 | bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR); | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | /** | |
1118 | * This routine will be called by bfa_timer on timer timeouts. | |
1119 | * | |
1120 | * param[in] port - pointer to bfa_fcs_port_t. | |
1121 | * | |
1122 | * return | |
1123 | * void | |
1124 | * | |
1125 | * Special Considerations: | |
1126 | * | |
1127 | * note | |
1128 | */ | |
1129 | static void | |
1130 | bfa_fcs_port_ns_timeout(void *arg) | |
1131 | { | |
1132 | struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)arg; | |
1133 | ||
1134 | ns->port->stats.ns_timeouts++; | |
1135 | bfa_sm_send_event(ns, NSSM_EVENT_TIMEOUT); | |
1136 | } | |
1137 | ||
1138 | /* | |
1139 | * Process the PID list in GID_FT response | |
1140 | */ | |
1141 | static void | |
1142 | bfa_fcs_port_ns_process_gidft_pids(struct bfa_fcs_port_s *port, | |
1143 | u32 *pid_buf, u32 n_pids) | |
1144 | { | |
1145 | struct fcgs_gidft_resp_s *gidft_entry; | |
1146 | struct bfa_fcs_rport_s *rport; | |
1147 | u32 ii; | |
1148 | ||
1149 | for (ii = 0; ii < n_pids; ii++) { | |
1150 | gidft_entry = (struct fcgs_gidft_resp_s *) &pid_buf[ii]; | |
1151 | ||
1152 | if (gidft_entry->pid == port->pid) | |
1153 | continue; | |
1154 | ||
1155 | /* | |
1156 | * Check if this rport already exists | |
1157 | */ | |
1158 | rport = bfa_fcs_port_get_rport_by_pid(port, gidft_entry->pid); | |
1159 | if (rport == NULL) { | |
1160 | /* | |
1161 | * this is a new device. create rport | |
1162 | */ | |
1163 | rport = bfa_fcs_rport_create(port, gidft_entry->pid); | |
1164 | } else { | |
1165 | /* | |
1166 | * this rport already exists | |
1167 | */ | |
1168 | bfa_fcs_rport_scn(rport); | |
1169 | } | |
1170 | ||
1171 | bfa_trc(port->fcs, gidft_entry->pid); | |
1172 | ||
1173 | /* | |
1174 | * if the last entry bit is set, bail out. | |
1175 | */ | |
1176 | if (gidft_entry->last) | |
1177 | return; | |
1178 | } | |
1179 | } | |
1180 | ||
1181 | /** | |
1182 | * fcs_ns_public FCS nameserver public interfaces | |
1183 | */ | |
1184 | ||
1185 | /* | |
1186 | * Functions called by port/fab. | |
1187 | * These will send relevant Events to the ns state machine. | |
1188 | */ | |
1189 | void | |
1190 | bfa_fcs_port_ns_init(struct bfa_fcs_port_s *port) | |
1191 | { | |
1192 | struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port); | |
1193 | ||
1194 | ns->port = port; | |
1195 | bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline); | |
1196 | } | |
1197 | ||
1198 | void | |
1199 | bfa_fcs_port_ns_offline(struct bfa_fcs_port_s *port) | |
1200 | { | |
1201 | struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port); | |
1202 | ||
1203 | ns->port = port; | |
1204 | bfa_sm_send_event(ns, NSSM_EVENT_PORT_OFFLINE); | |
1205 | } | |
1206 | ||
1207 | void | |
1208 | bfa_fcs_port_ns_online(struct bfa_fcs_port_s *port) | |
1209 | { | |
1210 | struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port); | |
1211 | ||
1212 | ns->port = port; | |
1213 | bfa_sm_send_event(ns, NSSM_EVENT_PORT_ONLINE); | |
1214 | } | |
1215 | ||
1216 | void | |
1217 | bfa_fcs_port_ns_query(struct bfa_fcs_port_s *port) | |
1218 | { | |
1219 | struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port); | |
1220 | ||
1221 | bfa_trc(port->fcs, port->pid); | |
1222 | bfa_sm_send_event(ns, NSSM_EVENT_NS_QUERY); | |
1223 | } | |
1224 | ||
1225 | static void | |
1226 | bfa_fcs_port_ns_boot_target_disc(struct bfa_fcs_port_s *port) | |
1227 | { | |
1228 | ||
1229 | struct bfa_fcs_rport_s *rport; | |
1230 | u8 nwwns; | |
1231 | wwn_t *wwns; | |
1232 | int ii; | |
1233 | ||
1234 | bfa_iocfc_get_bootwwns(port->fcs->bfa, &nwwns, &wwns); | |
1235 | ||
1236 | for (ii = 0; ii < nwwns; ++ii) { | |
1237 | rport = bfa_fcs_rport_create_by_wwn(port, wwns[ii]); | |
1238 | bfa_assert(rport); | |
1239 | } | |
1240 | } | |
1241 | ||
1242 |