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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 | #include <bfa.h> | |
20 | #include <bfa_svc.h> | |
21 | #include "fcs_lport.h" | |
22 | #include "fcs_rport.h" | |
23 | #include "fcs_trcmod.h" | |
24 | #include "fcs_fcxp.h" | |
25 | #include "lport_priv.h" | |
26 | ||
27 | BFA_TRC_FILE(FCS, MS); | |
28 | ||
29 | #define BFA_FCS_MS_CMD_MAX_RETRIES 2 | |
30 | /* | |
31 | * forward declarations | |
32 | */ | |
33 | static void bfa_fcs_port_ms_send_plogi(void *ms_cbarg, | |
34 | struct bfa_fcxp_s *fcxp_alloced); | |
35 | static void bfa_fcs_port_ms_timeout(void *arg); | |
36 | static void bfa_fcs_port_ms_plogi_response(void *fcsarg, | |
37 | struct bfa_fcxp_s *fcxp, | |
38 | void *cbarg, | |
39 | bfa_status_t req_status, | |
40 | u32 rsp_len, | |
41 | u32 resid_len, | |
42 | struct fchs_s *rsp_fchs); | |
43 | ||
44 | static void bfa_fcs_port_ms_send_gmal(void *ms_cbarg, | |
45 | struct bfa_fcxp_s *fcxp_alloced); | |
46 | static void bfa_fcs_port_ms_gmal_response(void *fcsarg, | |
47 | struct bfa_fcxp_s *fcxp, | |
48 | void *cbarg, | |
49 | bfa_status_t req_status, | |
50 | u32 rsp_len, | |
51 | u32 resid_len, | |
52 | struct fchs_s *rsp_fchs); | |
53 | static void bfa_fcs_port_ms_send_gfn(void *ms_cbarg, | |
54 | struct bfa_fcxp_s *fcxp_alloced); | |
55 | static void bfa_fcs_port_ms_gfn_response(void *fcsarg, | |
56 | struct bfa_fcxp_s *fcxp, | |
57 | void *cbarg, | |
58 | bfa_status_t req_status, | |
59 | u32 rsp_len, | |
60 | u32 resid_len, | |
61 | struct fchs_s *rsp_fchs); | |
62 | /** | |
63 | * fcs_ms_sm FCS MS state machine | |
64 | */ | |
65 | ||
66 | /** | |
67 | * MS State Machine events | |
68 | */ | |
69 | enum port_ms_event { | |
70 | MSSM_EVENT_PORT_ONLINE = 1, | |
71 | MSSM_EVENT_PORT_OFFLINE = 2, | |
72 | MSSM_EVENT_RSP_OK = 3, | |
73 | MSSM_EVENT_RSP_ERROR = 4, | |
74 | MSSM_EVENT_TIMEOUT = 5, | |
75 | MSSM_EVENT_FCXP_SENT = 6, | |
76 | MSSM_EVENT_PORT_FABRIC_RSCN = 7 | |
77 | }; | |
78 | ||
79 | static void bfa_fcs_port_ms_sm_offline(struct bfa_fcs_port_ms_s *ms, | |
80 | enum port_ms_event event); | |
81 | static void bfa_fcs_port_ms_sm_plogi_sending(struct bfa_fcs_port_ms_s *ms, | |
82 | enum port_ms_event event); | |
83 | static void bfa_fcs_port_ms_sm_plogi(struct bfa_fcs_port_ms_s *ms, | |
84 | enum port_ms_event event); | |
85 | static void bfa_fcs_port_ms_sm_plogi_retry(struct bfa_fcs_port_ms_s *ms, | |
86 | enum port_ms_event event); | |
87 | static void bfa_fcs_port_ms_sm_gmal_sending(struct bfa_fcs_port_ms_s *ms, | |
88 | enum port_ms_event event); | |
89 | static void bfa_fcs_port_ms_sm_gmal(struct bfa_fcs_port_ms_s *ms, | |
90 | enum port_ms_event event); | |
91 | static void bfa_fcs_port_ms_sm_gmal_retry(struct bfa_fcs_port_ms_s *ms, | |
92 | enum port_ms_event event); | |
93 | static void bfa_fcs_port_ms_sm_gfn_sending(struct bfa_fcs_port_ms_s *ms, | |
94 | enum port_ms_event event); | |
95 | static void bfa_fcs_port_ms_sm_gfn(struct bfa_fcs_port_ms_s *ms, | |
96 | enum port_ms_event event); | |
97 | static void bfa_fcs_port_ms_sm_gfn_retry(struct bfa_fcs_port_ms_s *ms, | |
98 | enum port_ms_event event); | |
99 | static void bfa_fcs_port_ms_sm_online(struct bfa_fcs_port_ms_s *ms, | |
100 | enum port_ms_event event); | |
101 | /** | |
102 | * Start in offline state - awaiting NS to send start. | |
103 | */ | |
104 | static void | |
105 | bfa_fcs_port_ms_sm_offline(struct bfa_fcs_port_ms_s *ms, | |
106 | enum port_ms_event event) | |
107 | { | |
108 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
109 | bfa_trc(ms->port->fcs, event); | |
110 | ||
111 | switch (event) { | |
112 | case MSSM_EVENT_PORT_ONLINE: | |
113 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_plogi_sending); | |
114 | bfa_fcs_port_ms_send_plogi(ms, NULL); | |
115 | break; | |
116 | ||
117 | case MSSM_EVENT_PORT_OFFLINE: | |
118 | break; | |
119 | ||
120 | default: | |
121 | bfa_assert(0); | |
122 | } | |
123 | } | |
124 | ||
125 | static void | |
126 | bfa_fcs_port_ms_sm_plogi_sending(struct bfa_fcs_port_ms_s *ms, | |
127 | enum port_ms_event event) | |
128 | { | |
129 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
130 | bfa_trc(ms->port->fcs, event); | |
131 | ||
132 | switch (event) { | |
133 | case MSSM_EVENT_FCXP_SENT: | |
134 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_plogi); | |
135 | break; | |
136 | ||
137 | case MSSM_EVENT_PORT_OFFLINE: | |
138 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
139 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ms->port), | |
140 | &ms->fcxp_wqe); | |
141 | break; | |
142 | ||
143 | default: | |
144 | bfa_assert(0); | |
145 | } | |
146 | } | |
147 | ||
148 | static void | |
149 | bfa_fcs_port_ms_sm_plogi(struct bfa_fcs_port_ms_s *ms, enum port_ms_event event) | |
150 | { | |
151 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
152 | bfa_trc(ms->port->fcs, event); | |
153 | ||
154 | switch (event) { | |
155 | case MSSM_EVENT_RSP_ERROR: | |
156 | /* | |
157 | * Start timer for a delayed retry | |
158 | */ | |
159 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_plogi_retry); | |
160 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port), &ms->timer, | |
161 | bfa_fcs_port_ms_timeout, ms, | |
162 | BFA_FCS_RETRY_TIMEOUT); | |
163 | break; | |
164 | ||
165 | case MSSM_EVENT_RSP_OK: | |
166 | /* | |
167 | * since plogi is done, now invoke MS related sub-modules | |
168 | */ | |
169 | bfa_fcs_port_fdmi_online(ms); | |
170 | ||
171 | /** | |
172 | * if this is a Vport, go to online state. | |
173 | */ | |
174 | if (ms->port->vport) { | |
175 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_online); | |
176 | break; | |
177 | } | |
178 | ||
179 | /* | |
180 | * For a base port we need to get the | |
181 | * switch's IP address. | |
182 | */ | |
183 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gmal_sending); | |
184 | bfa_fcs_port_ms_send_gmal(ms, NULL); | |
185 | break; | |
186 | ||
187 | case MSSM_EVENT_PORT_OFFLINE: | |
188 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
189 | bfa_fcxp_discard(ms->fcxp); | |
190 | break; | |
191 | ||
192 | default: | |
193 | bfa_assert(0); | |
194 | } | |
195 | } | |
196 | ||
197 | static void | |
198 | bfa_fcs_port_ms_sm_plogi_retry(struct bfa_fcs_port_ms_s *ms, | |
199 | enum port_ms_event event) | |
200 | { | |
201 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
202 | bfa_trc(ms->port->fcs, event); | |
203 | ||
204 | switch (event) { | |
205 | case MSSM_EVENT_TIMEOUT: | |
206 | /* | |
207 | * Retry Timer Expired. Re-send | |
208 | */ | |
209 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_plogi_sending); | |
210 | bfa_fcs_port_ms_send_plogi(ms, NULL); | |
211 | break; | |
212 | ||
213 | case MSSM_EVENT_PORT_OFFLINE: | |
214 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
215 | bfa_timer_stop(&ms->timer); | |
216 | break; | |
217 | ||
218 | default: | |
219 | bfa_assert(0); | |
220 | } | |
221 | } | |
222 | ||
223 | static void | |
224 | bfa_fcs_port_ms_sm_online(struct bfa_fcs_port_ms_s *ms, | |
225 | enum port_ms_event event) | |
226 | { | |
227 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
228 | bfa_trc(ms->port->fcs, event); | |
229 | ||
230 | switch (event) { | |
231 | case MSSM_EVENT_PORT_OFFLINE: | |
232 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
233 | /* | |
234 | * now invoke MS related sub-modules | |
235 | */ | |
236 | bfa_fcs_port_fdmi_offline(ms); | |
237 | break; | |
238 | ||
239 | case MSSM_EVENT_PORT_FABRIC_RSCN: | |
240 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gfn_sending); | |
241 | ms->retry_cnt = 0; | |
242 | bfa_fcs_port_ms_send_gfn(ms, NULL); | |
243 | break; | |
244 | ||
245 | default: | |
246 | bfa_assert(0); | |
247 | } | |
248 | } | |
249 | ||
250 | static void | |
251 | bfa_fcs_port_ms_sm_gmal_sending(struct bfa_fcs_port_ms_s *ms, | |
252 | enum port_ms_event event) | |
253 | { | |
254 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
255 | bfa_trc(ms->port->fcs, event); | |
256 | ||
257 | switch (event) { | |
258 | case MSSM_EVENT_FCXP_SENT: | |
259 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gmal); | |
260 | break; | |
261 | ||
262 | case MSSM_EVENT_PORT_OFFLINE: | |
263 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
264 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ms->port), | |
265 | &ms->fcxp_wqe); | |
266 | break; | |
267 | ||
268 | default: | |
269 | bfa_assert(0); | |
270 | } | |
271 | } | |
272 | ||
273 | static void | |
274 | bfa_fcs_port_ms_sm_gmal(struct bfa_fcs_port_ms_s *ms, enum port_ms_event event) | |
275 | { | |
276 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
277 | bfa_trc(ms->port->fcs, event); | |
278 | ||
279 | switch (event) { | |
280 | case MSSM_EVENT_RSP_ERROR: | |
281 | /* | |
282 | * Start timer for a delayed retry | |
283 | */ | |
284 | if (ms->retry_cnt++ < BFA_FCS_MS_CMD_MAX_RETRIES) { | |
285 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gmal_retry); | |
286 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port), | |
287 | &ms->timer, bfa_fcs_port_ms_timeout, ms, | |
288 | BFA_FCS_RETRY_TIMEOUT); | |
289 | } else { | |
290 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gfn_sending); | |
291 | bfa_fcs_port_ms_send_gfn(ms, NULL); | |
292 | ms->retry_cnt = 0; | |
293 | } | |
294 | break; | |
295 | ||
296 | case MSSM_EVENT_RSP_OK: | |
297 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gfn_sending); | |
298 | bfa_fcs_port_ms_send_gfn(ms, NULL); | |
299 | break; | |
300 | ||
301 | case MSSM_EVENT_PORT_OFFLINE: | |
302 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
303 | bfa_fcxp_discard(ms->fcxp); | |
304 | break; | |
305 | ||
306 | default: | |
307 | bfa_assert(0); | |
308 | } | |
309 | } | |
310 | ||
311 | static void | |
312 | bfa_fcs_port_ms_sm_gmal_retry(struct bfa_fcs_port_ms_s *ms, | |
313 | enum port_ms_event event) | |
314 | { | |
315 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
316 | bfa_trc(ms->port->fcs, event); | |
317 | ||
318 | switch (event) { | |
319 | case MSSM_EVENT_TIMEOUT: | |
320 | /* | |
321 | * Retry Timer Expired. Re-send | |
322 | */ | |
323 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gmal_sending); | |
324 | bfa_fcs_port_ms_send_gmal(ms, NULL); | |
325 | break; | |
326 | ||
327 | case MSSM_EVENT_PORT_OFFLINE: | |
328 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
329 | bfa_timer_stop(&ms->timer); | |
330 | break; | |
331 | ||
332 | default: | |
333 | bfa_assert(0); | |
334 | } | |
335 | } | |
336 | ||
337 | /** | |
338 | * ms_pvt MS local functions | |
339 | */ | |
340 | ||
341 | static void | |
342 | bfa_fcs_port_ms_send_gmal(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
343 | { | |
344 | struct bfa_fcs_port_ms_s *ms = ms_cbarg; | |
345 | struct bfa_fcs_port_s *port = ms->port; | |
346 | struct fchs_s fchs; | |
347 | int len; | |
348 | struct bfa_fcxp_s *fcxp; | |
349 | ||
350 | bfa_trc(port->fcs, port->pid); | |
351 | ||
352 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
353 | if (!fcxp) { | |
354 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe, | |
355 | bfa_fcs_port_ms_send_gmal, ms); | |
356 | return; | |
357 | } | |
358 | ms->fcxp = fcxp; | |
359 | ||
360 | len = fc_gmal_req_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
361 | bfa_fcs_port_get_fcid(port), | |
362 | bfa_lps_get_peer_nwwn(port->fabric->lps)); | |
363 | ||
364 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
365 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ms_gmal_response, | |
366 | (void *)ms, FC_MAX_PDUSZ, FC_RA_TOV); | |
367 | ||
368 | bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT); | |
369 | } | |
370 | ||
371 | static void | |
372 | bfa_fcs_port_ms_gmal_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
373 | void *cbarg, bfa_status_t req_status, | |
374 | u32 rsp_len, u32 resid_len, | |
375 | struct fchs_s *rsp_fchs) | |
376 | { | |
377 | struct bfa_fcs_port_ms_s *ms = (struct bfa_fcs_port_ms_s *)cbarg; | |
378 | struct bfa_fcs_port_s *port = ms->port; | |
379 | struct ct_hdr_s *cthdr = NULL; | |
380 | struct fcgs_gmal_resp_s *gmal_resp; | |
381 | struct fc_gmal_entry_s *gmal_entry; | |
382 | u32 num_entries; | |
383 | u8 *rsp_str; | |
384 | ||
385 | bfa_trc(port->fcs, req_status); | |
386 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
387 | ||
388 | /* | |
389 | * Sanity Checks | |
390 | */ | |
391 | if (req_status != BFA_STATUS_OK) { | |
392 | bfa_trc(port->fcs, req_status); | |
393 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
394 | return; | |
395 | } | |
396 | ||
397 | cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); | |
398 | cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); | |
399 | ||
400 | if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) { | |
401 | gmal_resp = (struct fcgs_gmal_resp_s *)(cthdr + 1); | |
402 | num_entries = bfa_os_ntohl(gmal_resp->ms_len); | |
403 | if (num_entries == 0) { | |
404 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
405 | return; | |
406 | } | |
407 | /* | |
408 | * The response could contain multiple Entries. | |
409 | * Entries for SNMP interface, etc. | |
410 | * We look for the entry with a telnet prefix. | |
411 | * First "http://" entry refers to IP addr | |
412 | */ | |
413 | ||
414 | gmal_entry = (struct fc_gmal_entry_s *)gmal_resp->ms_ma; | |
415 | while (num_entries > 0) { | |
416 | if (strncmp | |
417 | (gmal_entry->prefix, CT_GMAL_RESP_PREFIX_HTTP, | |
418 | sizeof(gmal_entry->prefix)) == 0) { | |
419 | ||
420 | /* | |
421 | * if the IP address is terminating with a '/', | |
422 | * remove it. *Byte 0 consists of the length | |
423 | * of the string. | |
424 | */ | |
425 | rsp_str = &(gmal_entry->prefix[0]); | |
426 | if (rsp_str[gmal_entry->len - 1] == '/') | |
427 | rsp_str[gmal_entry->len - 1] = 0; | |
428 | /* | |
429 | * copy IP Address to fabric | |
430 | */ | |
431 | strncpy(bfa_fcs_port_get_fabric_ipaddr(port), | |
432 | gmal_entry->ip_addr, | |
433 | BFA_FCS_FABRIC_IPADDR_SZ); | |
434 | break; | |
435 | } else { | |
436 | --num_entries; | |
437 | ++gmal_entry; | |
438 | } | |
439 | } | |
440 | ||
441 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK); | |
442 | return; | |
443 | } | |
444 | ||
445 | bfa_trc(port->fcs, cthdr->reason_code); | |
446 | bfa_trc(port->fcs, cthdr->exp_code); | |
447 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
448 | } | |
449 | ||
450 | static void | |
451 | bfa_fcs_port_ms_sm_gfn_sending(struct bfa_fcs_port_ms_s *ms, | |
452 | enum port_ms_event event) | |
453 | { | |
454 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
455 | bfa_trc(ms->port->fcs, event); | |
456 | ||
457 | switch (event) { | |
458 | case MSSM_EVENT_FCXP_SENT: | |
459 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gfn); | |
460 | break; | |
461 | ||
462 | case MSSM_EVENT_PORT_OFFLINE: | |
463 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
464 | bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ms->port), | |
465 | &ms->fcxp_wqe); | |
466 | break; | |
467 | ||
468 | default: | |
469 | bfa_assert(0); | |
470 | } | |
471 | } | |
472 | ||
473 | static void | |
474 | bfa_fcs_port_ms_sm_gfn(struct bfa_fcs_port_ms_s *ms, enum port_ms_event event) | |
475 | { | |
476 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
477 | bfa_trc(ms->port->fcs, event); | |
478 | ||
479 | switch (event) { | |
480 | case MSSM_EVENT_RSP_ERROR: | |
481 | /* | |
482 | * Start timer for a delayed retry | |
483 | */ | |
484 | if (ms->retry_cnt++ < BFA_FCS_MS_CMD_MAX_RETRIES) { | |
485 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gfn_retry); | |
486 | bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port), | |
487 | &ms->timer, bfa_fcs_port_ms_timeout, ms, | |
488 | BFA_FCS_RETRY_TIMEOUT); | |
489 | } else { | |
490 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_online); | |
491 | ms->retry_cnt = 0; | |
492 | } | |
493 | break; | |
494 | ||
495 | case MSSM_EVENT_RSP_OK: | |
496 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_online); | |
497 | break; | |
498 | ||
499 | case MSSM_EVENT_PORT_OFFLINE: | |
500 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
501 | bfa_fcxp_discard(ms->fcxp); | |
502 | break; | |
503 | ||
504 | default: | |
505 | bfa_assert(0); | |
506 | } | |
507 | } | |
508 | ||
509 | static void | |
510 | bfa_fcs_port_ms_sm_gfn_retry(struct bfa_fcs_port_ms_s *ms, | |
511 | enum port_ms_event event) | |
512 | { | |
513 | bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn); | |
514 | bfa_trc(ms->port->fcs, event); | |
515 | ||
516 | switch (event) { | |
517 | case MSSM_EVENT_TIMEOUT: | |
518 | /* | |
519 | * Retry Timer Expired. Re-send | |
520 | */ | |
521 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gfn_sending); | |
522 | bfa_fcs_port_ms_send_gfn(ms, NULL); | |
523 | break; | |
524 | ||
525 | case MSSM_EVENT_PORT_OFFLINE: | |
526 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
527 | bfa_timer_stop(&ms->timer); | |
528 | break; | |
529 | ||
530 | default: | |
531 | bfa_assert(0); | |
532 | } | |
533 | } | |
534 | ||
535 | /** | |
536 | * ms_pvt MS local functions | |
537 | */ | |
538 | ||
539 | static void | |
540 | bfa_fcs_port_ms_send_gfn(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
541 | { | |
542 | struct bfa_fcs_port_ms_s *ms = ms_cbarg; | |
543 | struct bfa_fcs_port_s *port = ms->port; | |
544 | struct fchs_s fchs; | |
545 | int len; | |
546 | struct bfa_fcxp_s *fcxp; | |
547 | ||
548 | bfa_trc(port->fcs, port->pid); | |
549 | ||
550 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
551 | if (!fcxp) { | |
552 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe, | |
553 | bfa_fcs_port_ms_send_gfn, ms); | |
554 | return; | |
555 | } | |
556 | ms->fcxp = fcxp; | |
557 | ||
558 | len = fc_gfn_req_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
559 | bfa_fcs_port_get_fcid(port), | |
560 | bfa_lps_get_peer_nwwn(port->fabric->lps)); | |
561 | ||
562 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
563 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ms_gfn_response, | |
564 | (void *)ms, FC_MAX_PDUSZ, FC_RA_TOV); | |
565 | ||
566 | bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT); | |
567 | } | |
568 | ||
569 | static void | |
570 | bfa_fcs_port_ms_gfn_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, | |
571 | bfa_status_t req_status, u32 rsp_len, | |
572 | u32 resid_len, struct fchs_s *rsp_fchs) | |
573 | { | |
574 | struct bfa_fcs_port_ms_s *ms = (struct bfa_fcs_port_ms_s *)cbarg; | |
575 | struct bfa_fcs_port_s *port = ms->port; | |
576 | struct ct_hdr_s *cthdr = NULL; | |
577 | wwn_t *gfn_resp; | |
578 | ||
579 | bfa_trc(port->fcs, req_status); | |
580 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
581 | ||
582 | /* | |
583 | * Sanity Checks | |
584 | */ | |
585 | if (req_status != BFA_STATUS_OK) { | |
586 | bfa_trc(port->fcs, req_status); | |
587 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
588 | return; | |
589 | } | |
590 | ||
591 | cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); | |
592 | cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); | |
593 | ||
594 | if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) { | |
595 | gfn_resp = (wwn_t *) (cthdr + 1); | |
596 | /* | |
597 | * check if it has actually changed | |
598 | */ | |
599 | if ((memcmp | |
600 | ((void *)&bfa_fcs_port_get_fabric_name(port), gfn_resp, | |
601 | sizeof(wwn_t)) != 0)) | |
602 | bfa_fcs_fabric_set_fabric_name(port->fabric, *gfn_resp); | |
603 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK); | |
604 | return; | |
605 | } | |
606 | ||
607 | bfa_trc(port->fcs, cthdr->reason_code); | |
608 | bfa_trc(port->fcs, cthdr->exp_code); | |
609 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
610 | } | |
611 | ||
612 | /** | |
613 | * ms_pvt MS local functions | |
614 | */ | |
615 | ||
616 | static void | |
617 | bfa_fcs_port_ms_send_plogi(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced) | |
618 | { | |
619 | struct bfa_fcs_port_ms_s *ms = ms_cbarg; | |
620 | struct bfa_fcs_port_s *port = ms->port; | |
621 | struct fchs_s fchs; | |
622 | int len; | |
623 | struct bfa_fcxp_s *fcxp; | |
624 | ||
625 | bfa_trc(port->fcs, port->pid); | |
626 | ||
627 | fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); | |
628 | if (!fcxp) { | |
629 | port->stats.ms_plogi_alloc_wait++; | |
630 | bfa_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe, | |
631 | bfa_fcs_port_ms_send_plogi, ms); | |
632 | return; | |
633 | } | |
634 | ms->fcxp = fcxp; | |
635 | ||
636 | len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), | |
637 | bfa_os_hton3b(FC_MGMT_SERVER), | |
638 | bfa_fcs_port_get_fcid(port), 0, | |
639 | port->port_cfg.pwwn, port->port_cfg.nwwn, | |
640 | bfa_pport_get_maxfrsize(port->fcs->bfa)); | |
641 | ||
642 | bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, | |
643 | FC_CLASS_3, len, &fchs, bfa_fcs_port_ms_plogi_response, | |
644 | (void *)ms, FC_MAX_PDUSZ, FC_RA_TOV); | |
645 | ||
646 | port->stats.ms_plogi_sent++; | |
647 | bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT); | |
648 | } | |
649 | ||
650 | static void | |
651 | bfa_fcs_port_ms_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp, | |
652 | void *cbarg, bfa_status_t req_status, | |
653 | u32 rsp_len, u32 resid_len, | |
654 | struct fchs_s *rsp_fchs) | |
655 | { | |
656 | struct bfa_fcs_port_ms_s *ms = (struct bfa_fcs_port_ms_s *)cbarg; | |
657 | ||
658 | struct bfa_fcs_port_s *port = ms->port; | |
659 | struct fc_els_cmd_s *els_cmd; | |
660 | struct fc_ls_rjt_s *ls_rjt; | |
661 | ||
662 | bfa_trc(port->fcs, req_status); | |
663 | bfa_trc(port->fcs, port->port_cfg.pwwn); | |
664 | ||
665 | /* | |
666 | * Sanity Checks | |
667 | */ | |
668 | if (req_status != BFA_STATUS_OK) { | |
669 | port->stats.ms_plogi_rsp_err++; | |
670 | bfa_trc(port->fcs, req_status); | |
671 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
672 | return; | |
673 | } | |
674 | ||
675 | els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp); | |
676 | ||
677 | switch (els_cmd->els_code) { | |
678 | ||
679 | case FC_ELS_ACC: | |
680 | if (rsp_len < sizeof(struct fc_logi_s)) { | |
681 | bfa_trc(port->fcs, rsp_len); | |
682 | port->stats.ms_plogi_acc_err++; | |
683 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
684 | break; | |
685 | } | |
686 | port->stats.ms_plogi_accepts++; | |
687 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK); | |
688 | break; | |
689 | ||
690 | case FC_ELS_LS_RJT: | |
691 | ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp); | |
692 | ||
693 | bfa_trc(port->fcs, ls_rjt->reason_code); | |
694 | bfa_trc(port->fcs, ls_rjt->reason_code_expl); | |
695 | ||
696 | port->stats.ms_rejects++; | |
697 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
698 | break; | |
699 | ||
700 | default: | |
701 | port->stats.ms_plogi_unknown_rsp++; | |
702 | bfa_trc(port->fcs, els_cmd->els_code); | |
703 | bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR); | |
704 | } | |
705 | } | |
706 | ||
707 | static void | |
708 | bfa_fcs_port_ms_timeout(void *arg) | |
709 | { | |
710 | struct bfa_fcs_port_ms_s *ms = (struct bfa_fcs_port_ms_s *)arg; | |
711 | ||
712 | ms->port->stats.ms_timeouts++; | |
713 | bfa_sm_send_event(ms, MSSM_EVENT_TIMEOUT); | |
714 | } | |
715 | ||
716 | ||
717 | void | |
718 | bfa_fcs_port_ms_init(struct bfa_fcs_port_s *port) | |
719 | { | |
720 | struct bfa_fcs_port_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port); | |
721 | ||
722 | ms->port = port; | |
723 | bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline); | |
724 | ||
725 | /* | |
726 | * Invoke init routines of sub modules. | |
727 | */ | |
728 | bfa_fcs_port_fdmi_init(ms); | |
729 | } | |
730 | ||
731 | void | |
732 | bfa_fcs_port_ms_offline(struct bfa_fcs_port_s *port) | |
733 | { | |
734 | struct bfa_fcs_port_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port); | |
735 | ||
736 | ms->port = port; | |
737 | bfa_sm_send_event(ms, MSSM_EVENT_PORT_OFFLINE); | |
738 | } | |
739 | ||
740 | void | |
741 | bfa_fcs_port_ms_online(struct bfa_fcs_port_s *port) | |
742 | { | |
743 | struct bfa_fcs_port_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port); | |
744 | ||
745 | ms->port = port; | |
746 | bfa_sm_send_event(ms, MSSM_EVENT_PORT_ONLINE); | |
747 | } | |
748 | ||
749 | void | |
750 | bfa_fcs_port_ms_fabric_rscn(struct bfa_fcs_port_s *port) | |
751 | { | |
752 | struct bfa_fcs_port_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port); | |
753 | ||
754 | /* | |
755 | * @todo. Handle this only when in Online state | |
756 | */ | |
757 | if (bfa_sm_cmp_state(ms, bfa_fcs_port_ms_sm_online)) | |
758 | bfa_sm_send_event(ms, MSSM_EVENT_PORT_FABRIC_RSCN); | |
759 | } |