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[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / bfa / bfa_svc.c
1 /*
2 * Copyright (c) 2005-2010 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 #include "bfad_drv.h"
19 #include "bfa_plog.h"
20 #include "bfa_cs.h"
21 #include "bfa_modules.h"
22
23 BFA_TRC_FILE(HAL, FCXP);
24 BFA_MODULE(fcxp);
25 BFA_MODULE(sgpg);
26 BFA_MODULE(lps);
27 BFA_MODULE(fcport);
28 BFA_MODULE(rport);
29 BFA_MODULE(uf);
30
31 /*
32 * LPS related definitions
33 */
34 #define BFA_LPS_MIN_LPORTS (1)
35 #define BFA_LPS_MAX_LPORTS (256)
36
37 /*
38 * Maximum Vports supported per physical port or vf.
39 */
40 #define BFA_LPS_MAX_VPORTS_SUPP_CB 255
41 #define BFA_LPS_MAX_VPORTS_SUPP_CT 190
42
43
44 /*
45 * FC PORT related definitions
46 */
47 /*
48 * The port is considered disabled if corresponding physical port or IOC are
49 * disabled explicitly
50 */
51 #define BFA_PORT_IS_DISABLED(bfa) \
52 ((bfa_fcport_is_disabled(bfa) == BFA_TRUE) || \
53 (bfa_ioc_is_disabled(&bfa->ioc) == BFA_TRUE))
54
55 /*
56 * BFA port state machine events
57 */
58 enum bfa_fcport_sm_event {
59 BFA_FCPORT_SM_START = 1, /* start port state machine */
60 BFA_FCPORT_SM_STOP = 2, /* stop port state machine */
61 BFA_FCPORT_SM_ENABLE = 3, /* enable port */
62 BFA_FCPORT_SM_DISABLE = 4, /* disable port state machine */
63 BFA_FCPORT_SM_FWRSP = 5, /* firmware enable/disable rsp */
64 BFA_FCPORT_SM_LINKUP = 6, /* firmware linkup event */
65 BFA_FCPORT_SM_LINKDOWN = 7, /* firmware linkup down */
66 BFA_FCPORT_SM_QRESUME = 8, /* CQ space available */
67 BFA_FCPORT_SM_HWFAIL = 9, /* IOC h/w failure */
68 };
69
70 /*
71 * BFA port link notification state machine events
72 */
73
74 enum bfa_fcport_ln_sm_event {
75 BFA_FCPORT_LN_SM_LINKUP = 1, /* linkup event */
76 BFA_FCPORT_LN_SM_LINKDOWN = 2, /* linkdown event */
77 BFA_FCPORT_LN_SM_NOTIFICATION = 3 /* done notification */
78 };
79
80 /*
81 * RPORT related definitions
82 */
83 #define bfa_rport_offline_cb(__rp) do { \
84 if ((__rp)->bfa->fcs) \
85 bfa_cb_rport_offline((__rp)->rport_drv); \
86 else { \
87 bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe, \
88 __bfa_cb_rport_offline, (__rp)); \
89 } \
90 } while (0)
91
92 #define bfa_rport_online_cb(__rp) do { \
93 if ((__rp)->bfa->fcs) \
94 bfa_cb_rport_online((__rp)->rport_drv); \
95 else { \
96 bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe, \
97 __bfa_cb_rport_online, (__rp)); \
98 } \
99 } while (0)
100
101 /*
102 * forward declarations FCXP related functions
103 */
104 static void __bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete);
105 static void hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
106 struct bfi_fcxp_send_rsp_s *fcxp_rsp);
107 static void hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen,
108 struct bfa_fcxp_s *fcxp, struct fchs_s *fchs);
109 static void bfa_fcxp_qresume(void *cbarg);
110 static void bfa_fcxp_queue(struct bfa_fcxp_s *fcxp,
111 struct bfi_fcxp_send_req_s *send_req);
112
113 /*
114 * forward declarations for LPS functions
115 */
116 static void bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
117 u32 *dm_len);
118 static void bfa_lps_attach(struct bfa_s *bfa, void *bfad,
119 struct bfa_iocfc_cfg_s *cfg,
120 struct bfa_meminfo_s *meminfo,
121 struct bfa_pcidev_s *pcidev);
122 static void bfa_lps_detach(struct bfa_s *bfa);
123 static void bfa_lps_start(struct bfa_s *bfa);
124 static void bfa_lps_stop(struct bfa_s *bfa);
125 static void bfa_lps_iocdisable(struct bfa_s *bfa);
126 static void bfa_lps_login_rsp(struct bfa_s *bfa,
127 struct bfi_lps_login_rsp_s *rsp);
128 static void bfa_lps_logout_rsp(struct bfa_s *bfa,
129 struct bfi_lps_logout_rsp_s *rsp);
130 static void bfa_lps_reqq_resume(void *lps_arg);
131 static void bfa_lps_free(struct bfa_lps_s *lps);
132 static void bfa_lps_send_login(struct bfa_lps_s *lps);
133 static void bfa_lps_send_logout(struct bfa_lps_s *lps);
134 static void bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps);
135 static void bfa_lps_login_comp(struct bfa_lps_s *lps);
136 static void bfa_lps_logout_comp(struct bfa_lps_s *lps);
137 static void bfa_lps_cvl_event(struct bfa_lps_s *lps);
138
139 /*
140 * forward declaration for LPS state machine
141 */
142 static void bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event);
143 static void bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event);
144 static void bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event
145 event);
146 static void bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event);
147 static void bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps,
148 enum bfa_lps_event event);
149 static void bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event);
150 static void bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event
151 event);
152
153 /*
154 * forward declaration for FC Port functions
155 */
156 static bfa_boolean_t bfa_fcport_send_enable(struct bfa_fcport_s *fcport);
157 static bfa_boolean_t bfa_fcport_send_disable(struct bfa_fcport_s *fcport);
158 static void bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport);
159 static void bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport);
160 static void bfa_fcport_set_wwns(struct bfa_fcport_s *fcport);
161 static void __bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete);
162 static void bfa_fcport_scn(struct bfa_fcport_s *fcport,
163 enum bfa_port_linkstate event, bfa_boolean_t trunk);
164 static void bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln,
165 enum bfa_port_linkstate event);
166 static void __bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete);
167 static void bfa_fcport_stats_get_timeout(void *cbarg);
168 static void bfa_fcport_stats_clr_timeout(void *cbarg);
169 static void bfa_trunk_iocdisable(struct bfa_s *bfa);
170
171 /*
172 * forward declaration for FC PORT state machine
173 */
174 static void bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
175 enum bfa_fcport_sm_event event);
176 static void bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
177 enum bfa_fcport_sm_event event);
178 static void bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
179 enum bfa_fcport_sm_event event);
180 static void bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
181 enum bfa_fcport_sm_event event);
182 static void bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport,
183 enum bfa_fcport_sm_event event);
184 static void bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
185 enum bfa_fcport_sm_event event);
186 static void bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport,
187 enum bfa_fcport_sm_event event);
188 static void bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport,
189 enum bfa_fcport_sm_event event);
190 static void bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
191 enum bfa_fcport_sm_event event);
192 static void bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport,
193 enum bfa_fcport_sm_event event);
194 static void bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport,
195 enum bfa_fcport_sm_event event);
196 static void bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport,
197 enum bfa_fcport_sm_event event);
198
199 static void bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln,
200 enum bfa_fcport_ln_sm_event event);
201 static void bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln,
202 enum bfa_fcport_ln_sm_event event);
203 static void bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln,
204 enum bfa_fcport_ln_sm_event event);
205 static void bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
206 enum bfa_fcport_ln_sm_event event);
207 static void bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
208 enum bfa_fcport_ln_sm_event event);
209 static void bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
210 enum bfa_fcport_ln_sm_event event);
211 static void bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
212 enum bfa_fcport_ln_sm_event event);
213
214 static struct bfa_sm_table_s hal_port_sm_table[] = {
215 {BFA_SM(bfa_fcport_sm_uninit), BFA_PORT_ST_UNINIT},
216 {BFA_SM(bfa_fcport_sm_enabling_qwait), BFA_PORT_ST_ENABLING_QWAIT},
217 {BFA_SM(bfa_fcport_sm_enabling), BFA_PORT_ST_ENABLING},
218 {BFA_SM(bfa_fcport_sm_linkdown), BFA_PORT_ST_LINKDOWN},
219 {BFA_SM(bfa_fcport_sm_linkup), BFA_PORT_ST_LINKUP},
220 {BFA_SM(bfa_fcport_sm_disabling_qwait), BFA_PORT_ST_DISABLING_QWAIT},
221 {BFA_SM(bfa_fcport_sm_toggling_qwait), BFA_PORT_ST_TOGGLING_QWAIT},
222 {BFA_SM(bfa_fcport_sm_disabling), BFA_PORT_ST_DISABLING},
223 {BFA_SM(bfa_fcport_sm_disabled), BFA_PORT_ST_DISABLED},
224 {BFA_SM(bfa_fcport_sm_stopped), BFA_PORT_ST_STOPPED},
225 {BFA_SM(bfa_fcport_sm_iocdown), BFA_PORT_ST_IOCDOWN},
226 {BFA_SM(bfa_fcport_sm_iocfail), BFA_PORT_ST_IOCDOWN},
227 };
228
229
230 /*
231 * forward declaration for RPORT related functions
232 */
233 static struct bfa_rport_s *bfa_rport_alloc(struct bfa_rport_mod_s *rp_mod);
234 static void bfa_rport_free(struct bfa_rport_s *rport);
235 static bfa_boolean_t bfa_rport_send_fwcreate(struct bfa_rport_s *rp);
236 static bfa_boolean_t bfa_rport_send_fwdelete(struct bfa_rport_s *rp);
237 static bfa_boolean_t bfa_rport_send_fwspeed(struct bfa_rport_s *rp);
238 static void __bfa_cb_rport_online(void *cbarg,
239 bfa_boolean_t complete);
240 static void __bfa_cb_rport_offline(void *cbarg,
241 bfa_boolean_t complete);
242
243 /*
244 * forward declaration for RPORT state machine
245 */
246 static void bfa_rport_sm_uninit(struct bfa_rport_s *rp,
247 enum bfa_rport_event event);
248 static void bfa_rport_sm_created(struct bfa_rport_s *rp,
249 enum bfa_rport_event event);
250 static void bfa_rport_sm_fwcreate(struct bfa_rport_s *rp,
251 enum bfa_rport_event event);
252 static void bfa_rport_sm_online(struct bfa_rport_s *rp,
253 enum bfa_rport_event event);
254 static void bfa_rport_sm_fwdelete(struct bfa_rport_s *rp,
255 enum bfa_rport_event event);
256 static void bfa_rport_sm_offline(struct bfa_rport_s *rp,
257 enum bfa_rport_event event);
258 static void bfa_rport_sm_deleting(struct bfa_rport_s *rp,
259 enum bfa_rport_event event);
260 static void bfa_rport_sm_offline_pending(struct bfa_rport_s *rp,
261 enum bfa_rport_event event);
262 static void bfa_rport_sm_delete_pending(struct bfa_rport_s *rp,
263 enum bfa_rport_event event);
264 static void bfa_rport_sm_iocdisable(struct bfa_rport_s *rp,
265 enum bfa_rport_event event);
266 static void bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp,
267 enum bfa_rport_event event);
268 static void bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp,
269 enum bfa_rport_event event);
270 static void bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp,
271 enum bfa_rport_event event);
272
273 /*
274 * PLOG related definitions
275 */
276 static int
277 plkd_validate_logrec(struct bfa_plog_rec_s *pl_rec)
278 {
279 if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) &&
280 (pl_rec->log_type != BFA_PL_LOG_TYPE_STRING))
281 return 1;
282
283 if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) &&
284 (pl_rec->log_num_ints > BFA_PL_INT_LOG_SZ))
285 return 1;
286
287 return 0;
288 }
289
290 static u64
291 bfa_get_log_time(void)
292 {
293 u64 system_time = 0;
294 struct timeval tv;
295 do_gettimeofday(&tv);
296
297 /* We are interested in seconds only. */
298 system_time = tv.tv_sec;
299 return system_time;
300 }
301
302 static void
303 bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
304 {
305 u16 tail;
306 struct bfa_plog_rec_s *pl_recp;
307
308 if (plog->plog_enabled == 0)
309 return;
310
311 if (plkd_validate_logrec(pl_rec)) {
312 WARN_ON(1);
313 return;
314 }
315
316 tail = plog->tail;
317
318 pl_recp = &(plog->plog_recs[tail]);
319
320 memcpy(pl_recp, pl_rec, sizeof(struct bfa_plog_rec_s));
321
322 pl_recp->tv = bfa_get_log_time();
323 BFA_PL_LOG_REC_INCR(plog->tail);
324
325 if (plog->head == plog->tail)
326 BFA_PL_LOG_REC_INCR(plog->head);
327 }
328
329 void
330 bfa_plog_init(struct bfa_plog_s *plog)
331 {
332 memset((char *)plog, 0, sizeof(struct bfa_plog_s));
333
334 memcpy(plog->plog_sig, BFA_PL_SIG_STR, BFA_PL_SIG_LEN);
335 plog->head = plog->tail = 0;
336 plog->plog_enabled = 1;
337 }
338
339 void
340 bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
341 enum bfa_plog_eid event,
342 u16 misc, char *log_str)
343 {
344 struct bfa_plog_rec_s lp;
345
346 if (plog->plog_enabled) {
347 memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
348 lp.mid = mid;
349 lp.eid = event;
350 lp.log_type = BFA_PL_LOG_TYPE_STRING;
351 lp.misc = misc;
352 strncpy(lp.log_entry.string_log, log_str,
353 BFA_PL_STRING_LOG_SZ - 1);
354 lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0';
355 bfa_plog_add(plog, &lp);
356 }
357 }
358
359 void
360 bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
361 enum bfa_plog_eid event,
362 u16 misc, u32 *intarr, u32 num_ints)
363 {
364 struct bfa_plog_rec_s lp;
365 u32 i;
366
367 if (num_ints > BFA_PL_INT_LOG_SZ)
368 num_ints = BFA_PL_INT_LOG_SZ;
369
370 if (plog->plog_enabled) {
371 memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
372 lp.mid = mid;
373 lp.eid = event;
374 lp.log_type = BFA_PL_LOG_TYPE_INT;
375 lp.misc = misc;
376
377 for (i = 0; i < num_ints; i++)
378 lp.log_entry.int_log[i] = intarr[i];
379
380 lp.log_num_ints = (u8) num_ints;
381
382 bfa_plog_add(plog, &lp);
383 }
384 }
385
386 void
387 bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
388 enum bfa_plog_eid event,
389 u16 misc, struct fchs_s *fchdr)
390 {
391 struct bfa_plog_rec_s lp;
392 u32 *tmp_int = (u32 *) fchdr;
393 u32 ints[BFA_PL_INT_LOG_SZ];
394
395 if (plog->plog_enabled) {
396 memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
397
398 ints[0] = tmp_int[0];
399 ints[1] = tmp_int[1];
400 ints[2] = tmp_int[4];
401
402 bfa_plog_intarr(plog, mid, event, misc, ints, 3);
403 }
404 }
405
406 void
407 bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
408 enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr,
409 u32 pld_w0)
410 {
411 struct bfa_plog_rec_s lp;
412 u32 *tmp_int = (u32 *) fchdr;
413 u32 ints[BFA_PL_INT_LOG_SZ];
414
415 if (plog->plog_enabled) {
416 memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
417
418 ints[0] = tmp_int[0];
419 ints[1] = tmp_int[1];
420 ints[2] = tmp_int[4];
421 ints[3] = pld_w0;
422
423 bfa_plog_intarr(plog, mid, event, misc, ints, 4);
424 }
425 }
426
427
428 /*
429 * fcxp_pvt BFA FCXP private functions
430 */
431
432 static void
433 claim_fcxp_req_rsp_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi)
434 {
435 u8 *dm_kva = NULL;
436 u64 dm_pa;
437 u32 buf_pool_sz;
438
439 dm_kva = bfa_meminfo_dma_virt(mi);
440 dm_pa = bfa_meminfo_dma_phys(mi);
441
442 buf_pool_sz = mod->req_pld_sz * mod->num_fcxps;
443
444 /*
445 * Initialize the fcxp req payload list
446 */
447 mod->req_pld_list_kva = dm_kva;
448 mod->req_pld_list_pa = dm_pa;
449 dm_kva += buf_pool_sz;
450 dm_pa += buf_pool_sz;
451 memset(mod->req_pld_list_kva, 0, buf_pool_sz);
452
453 /*
454 * Initialize the fcxp rsp payload list
455 */
456 buf_pool_sz = mod->rsp_pld_sz * mod->num_fcxps;
457 mod->rsp_pld_list_kva = dm_kva;
458 mod->rsp_pld_list_pa = dm_pa;
459 dm_kva += buf_pool_sz;
460 dm_pa += buf_pool_sz;
461 memset(mod->rsp_pld_list_kva, 0, buf_pool_sz);
462
463 bfa_meminfo_dma_virt(mi) = dm_kva;
464 bfa_meminfo_dma_phys(mi) = dm_pa;
465 }
466
467 static void
468 claim_fcxps_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi)
469 {
470 u16 i;
471 struct bfa_fcxp_s *fcxp;
472
473 fcxp = (struct bfa_fcxp_s *) bfa_meminfo_kva(mi);
474 memset(fcxp, 0, sizeof(struct bfa_fcxp_s) * mod->num_fcxps);
475
476 INIT_LIST_HEAD(&mod->fcxp_free_q);
477 INIT_LIST_HEAD(&mod->fcxp_active_q);
478
479 mod->fcxp_list = fcxp;
480
481 for (i = 0; i < mod->num_fcxps; i++) {
482 fcxp->fcxp_mod = mod;
483 fcxp->fcxp_tag = i;
484
485 list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
486 bfa_reqq_winit(&fcxp->reqq_wqe, bfa_fcxp_qresume, fcxp);
487 fcxp->reqq_waiting = BFA_FALSE;
488
489 fcxp = fcxp + 1;
490 }
491
492 bfa_meminfo_kva(mi) = (void *)fcxp;
493 }
494
495 static void
496 bfa_fcxp_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
497 u32 *dm_len)
498 {
499 u16 num_fcxp_reqs = cfg->fwcfg.num_fcxp_reqs;
500
501 if (num_fcxp_reqs == 0)
502 return;
503
504 /*
505 * Account for req/rsp payload
506 */
507 *dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs;
508 if (cfg->drvcfg.min_cfg)
509 *dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs;
510 else
511 *dm_len += BFA_FCXP_MAX_LBUF_SZ * num_fcxp_reqs;
512
513 /*
514 * Account for fcxp structs
515 */
516 *ndm_len += sizeof(struct bfa_fcxp_s) * num_fcxp_reqs;
517 }
518
519 static void
520 bfa_fcxp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
521 struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
522 {
523 struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
524
525 memset(mod, 0, sizeof(struct bfa_fcxp_mod_s));
526 mod->bfa = bfa;
527 mod->num_fcxps = cfg->fwcfg.num_fcxp_reqs;
528
529 /*
530 * Initialize FCXP request and response payload sizes.
531 */
532 mod->req_pld_sz = mod->rsp_pld_sz = BFA_FCXP_MAX_IBUF_SZ;
533 if (!cfg->drvcfg.min_cfg)
534 mod->rsp_pld_sz = BFA_FCXP_MAX_LBUF_SZ;
535
536 INIT_LIST_HEAD(&mod->wait_q);
537
538 claim_fcxp_req_rsp_mem(mod, meminfo);
539 claim_fcxps_mem(mod, meminfo);
540 }
541
542 static void
543 bfa_fcxp_detach(struct bfa_s *bfa)
544 {
545 }
546
547 static void
548 bfa_fcxp_start(struct bfa_s *bfa)
549 {
550 }
551
552 static void
553 bfa_fcxp_stop(struct bfa_s *bfa)
554 {
555 }
556
557 static void
558 bfa_fcxp_iocdisable(struct bfa_s *bfa)
559 {
560 struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
561 struct bfa_fcxp_s *fcxp;
562 struct list_head *qe, *qen;
563
564 list_for_each_safe(qe, qen, &mod->fcxp_active_q) {
565 fcxp = (struct bfa_fcxp_s *) qe;
566 if (fcxp->caller == NULL) {
567 fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
568 BFA_STATUS_IOC_FAILURE, 0, 0, NULL);
569 bfa_fcxp_free(fcxp);
570 } else {
571 fcxp->rsp_status = BFA_STATUS_IOC_FAILURE;
572 bfa_cb_queue(bfa, &fcxp->hcb_qe,
573 __bfa_fcxp_send_cbfn, fcxp);
574 }
575 }
576 }
577
578 static struct bfa_fcxp_s *
579 bfa_fcxp_get(struct bfa_fcxp_mod_s *fm)
580 {
581 struct bfa_fcxp_s *fcxp;
582
583 bfa_q_deq(&fm->fcxp_free_q, &fcxp);
584
585 if (fcxp)
586 list_add_tail(&fcxp->qe, &fm->fcxp_active_q);
587
588 return fcxp;
589 }
590
591 static void
592 bfa_fcxp_init_reqrsp(struct bfa_fcxp_s *fcxp,
593 struct bfa_s *bfa,
594 u8 *use_ibuf,
595 u32 *nr_sgles,
596 bfa_fcxp_get_sgaddr_t *r_sga_cbfn,
597 bfa_fcxp_get_sglen_t *r_sglen_cbfn,
598 struct list_head *r_sgpg_q,
599 int n_sgles,
600 bfa_fcxp_get_sgaddr_t sga_cbfn,
601 bfa_fcxp_get_sglen_t sglen_cbfn)
602 {
603
604 WARN_ON(bfa == NULL);
605
606 bfa_trc(bfa, fcxp->fcxp_tag);
607
608 if (n_sgles == 0) {
609 *use_ibuf = 1;
610 } else {
611 WARN_ON(*sga_cbfn == NULL);
612 WARN_ON(*sglen_cbfn == NULL);
613
614 *use_ibuf = 0;
615 *r_sga_cbfn = sga_cbfn;
616 *r_sglen_cbfn = sglen_cbfn;
617
618 *nr_sgles = n_sgles;
619
620 /*
621 * alloc required sgpgs
622 */
623 if (n_sgles > BFI_SGE_INLINE)
624 WARN_ON(1);
625 }
626
627 }
628
629 static void
630 bfa_fcxp_init(struct bfa_fcxp_s *fcxp,
631 void *caller, struct bfa_s *bfa, int nreq_sgles,
632 int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
633 bfa_fcxp_get_sglen_t req_sglen_cbfn,
634 bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
635 bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
636 {
637
638 WARN_ON(bfa == NULL);
639
640 bfa_trc(bfa, fcxp->fcxp_tag);
641
642 fcxp->caller = caller;
643
644 bfa_fcxp_init_reqrsp(fcxp, bfa,
645 &fcxp->use_ireqbuf, &fcxp->nreq_sgles, &fcxp->req_sga_cbfn,
646 &fcxp->req_sglen_cbfn, &fcxp->req_sgpg_q,
647 nreq_sgles, req_sga_cbfn, req_sglen_cbfn);
648
649 bfa_fcxp_init_reqrsp(fcxp, bfa,
650 &fcxp->use_irspbuf, &fcxp->nrsp_sgles, &fcxp->rsp_sga_cbfn,
651 &fcxp->rsp_sglen_cbfn, &fcxp->rsp_sgpg_q,
652 nrsp_sgles, rsp_sga_cbfn, rsp_sglen_cbfn);
653
654 }
655
656 static void
657 bfa_fcxp_put(struct bfa_fcxp_s *fcxp)
658 {
659 struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
660 struct bfa_fcxp_wqe_s *wqe;
661
662 bfa_q_deq(&mod->wait_q, &wqe);
663 if (wqe) {
664 bfa_trc(mod->bfa, fcxp->fcxp_tag);
665
666 bfa_fcxp_init(fcxp, wqe->caller, wqe->bfa, wqe->nreq_sgles,
667 wqe->nrsp_sgles, wqe->req_sga_cbfn,
668 wqe->req_sglen_cbfn, wqe->rsp_sga_cbfn,
669 wqe->rsp_sglen_cbfn);
670
671 wqe->alloc_cbfn(wqe->alloc_cbarg, fcxp);
672 return;
673 }
674
675 WARN_ON(!bfa_q_is_on_q(&mod->fcxp_active_q, fcxp));
676 list_del(&fcxp->qe);
677 list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
678 }
679
680 static void
681 bfa_fcxp_null_comp(void *bfad_fcxp, struct bfa_fcxp_s *fcxp, void *cbarg,
682 bfa_status_t req_status, u32 rsp_len,
683 u32 resid_len, struct fchs_s *rsp_fchs)
684 {
685 /* discarded fcxp completion */
686 }
687
688 static void
689 __bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete)
690 {
691 struct bfa_fcxp_s *fcxp = cbarg;
692
693 if (complete) {
694 fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
695 fcxp->rsp_status, fcxp->rsp_len,
696 fcxp->residue_len, &fcxp->rsp_fchs);
697 } else {
698 bfa_fcxp_free(fcxp);
699 }
700 }
701
702 static void
703 hal_fcxp_send_comp(struct bfa_s *bfa, struct bfi_fcxp_send_rsp_s *fcxp_rsp)
704 {
705 struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
706 struct bfa_fcxp_s *fcxp;
707 u16 fcxp_tag = be16_to_cpu(fcxp_rsp->fcxp_tag);
708
709 bfa_trc(bfa, fcxp_tag);
710
711 fcxp_rsp->rsp_len = be32_to_cpu(fcxp_rsp->rsp_len);
712
713 /*
714 * @todo f/w should not set residue to non-0 when everything
715 * is received.
716 */
717 if (fcxp_rsp->req_status == BFA_STATUS_OK)
718 fcxp_rsp->residue_len = 0;
719 else
720 fcxp_rsp->residue_len = be32_to_cpu(fcxp_rsp->residue_len);
721
722 fcxp = BFA_FCXP_FROM_TAG(mod, fcxp_tag);
723
724 WARN_ON(fcxp->send_cbfn == NULL);
725
726 hal_fcxp_rx_plog(mod->bfa, fcxp, fcxp_rsp);
727
728 if (fcxp->send_cbfn != NULL) {
729 bfa_trc(mod->bfa, (NULL == fcxp->caller));
730 if (fcxp->caller == NULL) {
731 fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
732 fcxp_rsp->req_status, fcxp_rsp->rsp_len,
733 fcxp_rsp->residue_len, &fcxp_rsp->fchs);
734 /*
735 * fcxp automatically freed on return from the callback
736 */
737 bfa_fcxp_free(fcxp);
738 } else {
739 fcxp->rsp_status = fcxp_rsp->req_status;
740 fcxp->rsp_len = fcxp_rsp->rsp_len;
741 fcxp->residue_len = fcxp_rsp->residue_len;
742 fcxp->rsp_fchs = fcxp_rsp->fchs;
743
744 bfa_cb_queue(bfa, &fcxp->hcb_qe,
745 __bfa_fcxp_send_cbfn, fcxp);
746 }
747 } else {
748 bfa_trc(bfa, (NULL == fcxp->send_cbfn));
749 }
750 }
751
752 static void
753 hal_fcxp_set_local_sges(struct bfi_sge_s *sge, u32 reqlen, u64 req_pa)
754 {
755 union bfi_addr_u sga_zero = { {0} };
756
757 sge->sg_len = reqlen;
758 sge->flags = BFI_SGE_DATA_LAST;
759 bfa_dma_addr_set(sge[0].sga, req_pa);
760 bfa_sge_to_be(sge);
761 sge++;
762
763 sge->sga = sga_zero;
764 sge->sg_len = reqlen;
765 sge->flags = BFI_SGE_PGDLEN;
766 bfa_sge_to_be(sge);
767 }
768
769 static void
770 hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen, struct bfa_fcxp_s *fcxp,
771 struct fchs_s *fchs)
772 {
773 /*
774 * TODO: TX ox_id
775 */
776 if (reqlen > 0) {
777 if (fcxp->use_ireqbuf) {
778 u32 pld_w0 =
779 *((u32 *) BFA_FCXP_REQ_PLD(fcxp));
780
781 bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
782 BFA_PL_EID_TX,
783 reqlen + sizeof(struct fchs_s), fchs,
784 pld_w0);
785 } else {
786 bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
787 BFA_PL_EID_TX,
788 reqlen + sizeof(struct fchs_s),
789 fchs);
790 }
791 } else {
792 bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_TX,
793 reqlen + sizeof(struct fchs_s), fchs);
794 }
795 }
796
797 static void
798 hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
799 struct bfi_fcxp_send_rsp_s *fcxp_rsp)
800 {
801 if (fcxp_rsp->rsp_len > 0) {
802 if (fcxp->use_irspbuf) {
803 u32 pld_w0 =
804 *((u32 *) BFA_FCXP_RSP_PLD(fcxp));
805
806 bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
807 BFA_PL_EID_RX,
808 (u16) fcxp_rsp->rsp_len,
809 &fcxp_rsp->fchs, pld_w0);
810 } else {
811 bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
812 BFA_PL_EID_RX,
813 (u16) fcxp_rsp->rsp_len,
814 &fcxp_rsp->fchs);
815 }
816 } else {
817 bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_RX,
818 (u16) fcxp_rsp->rsp_len, &fcxp_rsp->fchs);
819 }
820 }
821
822 /*
823 * Handler to resume sending fcxp when space in available in cpe queue.
824 */
825 static void
826 bfa_fcxp_qresume(void *cbarg)
827 {
828 struct bfa_fcxp_s *fcxp = cbarg;
829 struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
830 struct bfi_fcxp_send_req_s *send_req;
831
832 fcxp->reqq_waiting = BFA_FALSE;
833 send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
834 bfa_fcxp_queue(fcxp, send_req);
835 }
836
837 /*
838 * Queue fcxp send request to foimrware.
839 */
840 static void
841 bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, struct bfi_fcxp_send_req_s *send_req)
842 {
843 struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
844 struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info;
845 struct bfa_fcxp_rsp_info_s *rspi = &fcxp->rsp_info;
846 struct bfa_rport_s *rport = reqi->bfa_rport;
847
848 bfi_h2i_set(send_req->mh, BFI_MC_FCXP, BFI_FCXP_H2I_SEND_REQ,
849 bfa_lpuid(bfa));
850
851 send_req->fcxp_tag = cpu_to_be16(fcxp->fcxp_tag);
852 if (rport) {
853 send_req->rport_fw_hndl = rport->fw_handle;
854 send_req->max_frmsz = cpu_to_be16(rport->rport_info.max_frmsz);
855 if (send_req->max_frmsz == 0)
856 send_req->max_frmsz = cpu_to_be16(FC_MAX_PDUSZ);
857 } else {
858 send_req->rport_fw_hndl = 0;
859 send_req->max_frmsz = cpu_to_be16(FC_MAX_PDUSZ);
860 }
861
862 send_req->vf_id = cpu_to_be16(reqi->vf_id);
863 send_req->lp_tag = reqi->lp_tag;
864 send_req->class = reqi->class;
865 send_req->rsp_timeout = rspi->rsp_timeout;
866 send_req->cts = reqi->cts;
867 send_req->fchs = reqi->fchs;
868
869 send_req->req_len = cpu_to_be32(reqi->req_tot_len);
870 send_req->rsp_maxlen = cpu_to_be32(rspi->rsp_maxlen);
871
872 /*
873 * setup req sgles
874 */
875 if (fcxp->use_ireqbuf == 1) {
876 hal_fcxp_set_local_sges(send_req->req_sge, reqi->req_tot_len,
877 BFA_FCXP_REQ_PLD_PA(fcxp));
878 } else {
879 if (fcxp->nreq_sgles > 0) {
880 WARN_ON(fcxp->nreq_sgles != 1);
881 hal_fcxp_set_local_sges(send_req->req_sge,
882 reqi->req_tot_len,
883 fcxp->req_sga_cbfn(fcxp->caller,
884 0));
885 } else {
886 WARN_ON(reqi->req_tot_len != 0);
887 hal_fcxp_set_local_sges(send_req->rsp_sge, 0, 0);
888 }
889 }
890
891 /*
892 * setup rsp sgles
893 */
894 if (fcxp->use_irspbuf == 1) {
895 WARN_ON(rspi->rsp_maxlen > BFA_FCXP_MAX_LBUF_SZ);
896
897 hal_fcxp_set_local_sges(send_req->rsp_sge, rspi->rsp_maxlen,
898 BFA_FCXP_RSP_PLD_PA(fcxp));
899
900 } else {
901 if (fcxp->nrsp_sgles > 0) {
902 WARN_ON(fcxp->nrsp_sgles != 1);
903 hal_fcxp_set_local_sges(send_req->rsp_sge,
904 rspi->rsp_maxlen,
905 fcxp->rsp_sga_cbfn(fcxp->caller,
906 0));
907 } else {
908 WARN_ON(rspi->rsp_maxlen != 0);
909 hal_fcxp_set_local_sges(send_req->rsp_sge, 0, 0);
910 }
911 }
912
913 hal_fcxp_tx_plog(bfa, reqi->req_tot_len, fcxp, &reqi->fchs);
914
915 bfa_reqq_produce(bfa, BFA_REQQ_FCXP);
916
917 bfa_trc(bfa, bfa_reqq_pi(bfa, BFA_REQQ_FCXP));
918 bfa_trc(bfa, bfa_reqq_ci(bfa, BFA_REQQ_FCXP));
919 }
920
921 /*
922 * Allocate an FCXP instance to send a response or to send a request
923 * that has a response. Request/response buffers are allocated by caller.
924 *
925 * @param[in] bfa BFA bfa instance
926 * @param[in] nreq_sgles Number of SG elements required for request
927 * buffer. 0, if fcxp internal buffers are used.
928 * Use bfa_fcxp_get_reqbuf() to get the
929 * internal req buffer.
930 * @param[in] req_sgles SG elements describing request buffer. Will be
931 * copied in by BFA and hence can be freed on
932 * return from this function.
933 * @param[in] get_req_sga function ptr to be called to get a request SG
934 * Address (given the sge index).
935 * @param[in] get_req_sglen function ptr to be called to get a request SG
936 * len (given the sge index).
937 * @param[in] get_rsp_sga function ptr to be called to get a response SG
938 * Address (given the sge index).
939 * @param[in] get_rsp_sglen function ptr to be called to get a response SG
940 * len (given the sge index).
941 *
942 * @return FCXP instance. NULL on failure.
943 */
944 struct bfa_fcxp_s *
945 bfa_fcxp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
946 int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
947 bfa_fcxp_get_sglen_t req_sglen_cbfn,
948 bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
949 bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
950 {
951 struct bfa_fcxp_s *fcxp = NULL;
952
953 WARN_ON(bfa == NULL);
954
955 fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa));
956 if (fcxp == NULL)
957 return NULL;
958
959 bfa_trc(bfa, fcxp->fcxp_tag);
960
961 bfa_fcxp_init(fcxp, caller, bfa, nreq_sgles, nrsp_sgles, req_sga_cbfn,
962 req_sglen_cbfn, rsp_sga_cbfn, rsp_sglen_cbfn);
963
964 return fcxp;
965 }
966
967 /*
968 * Get the internal request buffer pointer
969 *
970 * @param[in] fcxp BFA fcxp pointer
971 *
972 * @return pointer to the internal request buffer
973 */
974 void *
975 bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp)
976 {
977 struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
978 void *reqbuf;
979
980 WARN_ON(fcxp->use_ireqbuf != 1);
981 reqbuf = ((u8 *)mod->req_pld_list_kva) +
982 fcxp->fcxp_tag * mod->req_pld_sz;
983 return reqbuf;
984 }
985
986 u32
987 bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp)
988 {
989 struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
990
991 return mod->req_pld_sz;
992 }
993
994 /*
995 * Get the internal response buffer pointer
996 *
997 * @param[in] fcxp BFA fcxp pointer
998 *
999 * @return pointer to the internal request buffer
1000 */
1001 void *
1002 bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp)
1003 {
1004 struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
1005 void *rspbuf;
1006
1007 WARN_ON(fcxp->use_irspbuf != 1);
1008
1009 rspbuf = ((u8 *)mod->rsp_pld_list_kva) +
1010 fcxp->fcxp_tag * mod->rsp_pld_sz;
1011 return rspbuf;
1012 }
1013
1014 /*
1015 * Free the BFA FCXP
1016 *
1017 * @param[in] fcxp BFA fcxp pointer
1018 *
1019 * @return void
1020 */
1021 void
1022 bfa_fcxp_free(struct bfa_fcxp_s *fcxp)
1023 {
1024 struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
1025
1026 WARN_ON(fcxp == NULL);
1027 bfa_trc(mod->bfa, fcxp->fcxp_tag);
1028 bfa_fcxp_put(fcxp);
1029 }
1030
1031 /*
1032 * Send a FCXP request
1033 *
1034 * @param[in] fcxp BFA fcxp pointer
1035 * @param[in] rport BFA rport pointer. Could be left NULL for WKA rports
1036 * @param[in] vf_id virtual Fabric ID
1037 * @param[in] lp_tag lport tag
1038 * @param[in] cts use Continuous sequence
1039 * @param[in] cos fc Class of Service
1040 * @param[in] reqlen request length, does not include FCHS length
1041 * @param[in] fchs fc Header Pointer. The header content will be copied
1042 * in by BFA.
1043 *
1044 * @param[in] cbfn call back function to be called on receiving
1045 * the response
1046 * @param[in] cbarg arg for cbfn
1047 * @param[in] rsp_timeout
1048 * response timeout
1049 *
1050 * @return bfa_status_t
1051 */
1052 void
1053 bfa_fcxp_send(struct bfa_fcxp_s *fcxp, struct bfa_rport_s *rport,
1054 u16 vf_id, u8 lp_tag, bfa_boolean_t cts, enum fc_cos cos,
1055 u32 reqlen, struct fchs_s *fchs, bfa_cb_fcxp_send_t cbfn,
1056 void *cbarg, u32 rsp_maxlen, u8 rsp_timeout)
1057 {
1058 struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
1059 struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info;
1060 struct bfa_fcxp_rsp_info_s *rspi = &fcxp->rsp_info;
1061 struct bfi_fcxp_send_req_s *send_req;
1062
1063 bfa_trc(bfa, fcxp->fcxp_tag);
1064
1065 /*
1066 * setup request/response info
1067 */
1068 reqi->bfa_rport = rport;
1069 reqi->vf_id = vf_id;
1070 reqi->lp_tag = lp_tag;
1071 reqi->class = cos;
1072 rspi->rsp_timeout = rsp_timeout;
1073 reqi->cts = cts;
1074 reqi->fchs = *fchs;
1075 reqi->req_tot_len = reqlen;
1076 rspi->rsp_maxlen = rsp_maxlen;
1077 fcxp->send_cbfn = cbfn ? cbfn : bfa_fcxp_null_comp;
1078 fcxp->send_cbarg = cbarg;
1079
1080 /*
1081 * If no room in CPE queue, wait for space in request queue
1082 */
1083 send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
1084 if (!send_req) {
1085 bfa_trc(bfa, fcxp->fcxp_tag);
1086 fcxp->reqq_waiting = BFA_TRUE;
1087 bfa_reqq_wait(bfa, BFA_REQQ_FCXP, &fcxp->reqq_wqe);
1088 return;
1089 }
1090
1091 bfa_fcxp_queue(fcxp, send_req);
1092 }
1093
1094 /*
1095 * Abort a BFA FCXP
1096 *
1097 * @param[in] fcxp BFA fcxp pointer
1098 *
1099 * @return void
1100 */
1101 bfa_status_t
1102 bfa_fcxp_abort(struct bfa_fcxp_s *fcxp)
1103 {
1104 bfa_trc(fcxp->fcxp_mod->bfa, fcxp->fcxp_tag);
1105 WARN_ON(1);
1106 return BFA_STATUS_OK;
1107 }
1108
1109 void
1110 bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
1111 bfa_fcxp_alloc_cbfn_t alloc_cbfn, void *alloc_cbarg,
1112 void *caller, int nreq_sgles,
1113 int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
1114 bfa_fcxp_get_sglen_t req_sglen_cbfn,
1115 bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
1116 bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
1117 {
1118 struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
1119
1120 WARN_ON(!list_empty(&mod->fcxp_free_q));
1121
1122 wqe->alloc_cbfn = alloc_cbfn;
1123 wqe->alloc_cbarg = alloc_cbarg;
1124 wqe->caller = caller;
1125 wqe->bfa = bfa;
1126 wqe->nreq_sgles = nreq_sgles;
1127 wqe->nrsp_sgles = nrsp_sgles;
1128 wqe->req_sga_cbfn = req_sga_cbfn;
1129 wqe->req_sglen_cbfn = req_sglen_cbfn;
1130 wqe->rsp_sga_cbfn = rsp_sga_cbfn;
1131 wqe->rsp_sglen_cbfn = rsp_sglen_cbfn;
1132
1133 list_add_tail(&wqe->qe, &mod->wait_q);
1134 }
1135
1136 void
1137 bfa_fcxp_walloc_cancel(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe)
1138 {
1139 struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
1140
1141 WARN_ON(!bfa_q_is_on_q(&mod->wait_q, wqe));
1142 list_del(&wqe->qe);
1143 }
1144
1145 void
1146 bfa_fcxp_discard(struct bfa_fcxp_s *fcxp)
1147 {
1148 /*
1149 * If waiting for room in request queue, cancel reqq wait
1150 * and free fcxp.
1151 */
1152 if (fcxp->reqq_waiting) {
1153 fcxp->reqq_waiting = BFA_FALSE;
1154 bfa_reqq_wcancel(&fcxp->reqq_wqe);
1155 bfa_fcxp_free(fcxp);
1156 return;
1157 }
1158
1159 fcxp->send_cbfn = bfa_fcxp_null_comp;
1160 }
1161
1162 void
1163 bfa_fcxp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
1164 {
1165 switch (msg->mhdr.msg_id) {
1166 case BFI_FCXP_I2H_SEND_RSP:
1167 hal_fcxp_send_comp(bfa, (struct bfi_fcxp_send_rsp_s *) msg);
1168 break;
1169
1170 default:
1171 bfa_trc(bfa, msg->mhdr.msg_id);
1172 WARN_ON(1);
1173 }
1174 }
1175
1176 u32
1177 bfa_fcxp_get_maxrsp(struct bfa_s *bfa)
1178 {
1179 struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
1180
1181 return mod->rsp_pld_sz;
1182 }
1183
1184
1185 /*
1186 * BFA LPS state machine functions
1187 */
1188
1189 /*
1190 * Init state -- no login
1191 */
1192 static void
1193 bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event)
1194 {
1195 bfa_trc(lps->bfa, lps->lp_tag);
1196 bfa_trc(lps->bfa, event);
1197
1198 switch (event) {
1199 case BFA_LPS_SM_LOGIN:
1200 if (bfa_reqq_full(lps->bfa, lps->reqq)) {
1201 bfa_sm_set_state(lps, bfa_lps_sm_loginwait);
1202 bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
1203 } else {
1204 bfa_sm_set_state(lps, bfa_lps_sm_login);
1205 bfa_lps_send_login(lps);
1206 }
1207
1208 if (lps->fdisc)
1209 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1210 BFA_PL_EID_LOGIN, 0, "FDISC Request");
1211 else
1212 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1213 BFA_PL_EID_LOGIN, 0, "FLOGI Request");
1214 break;
1215
1216 case BFA_LPS_SM_LOGOUT:
1217 bfa_lps_logout_comp(lps);
1218 break;
1219
1220 case BFA_LPS_SM_DELETE:
1221 bfa_lps_free(lps);
1222 break;
1223
1224 case BFA_LPS_SM_RX_CVL:
1225 case BFA_LPS_SM_OFFLINE:
1226 break;
1227
1228 case BFA_LPS_SM_FWRSP:
1229 /*
1230 * Could happen when fabric detects loopback and discards
1231 * the lps request. Fw will eventually sent out the timeout
1232 * Just ignore
1233 */
1234 break;
1235
1236 default:
1237 bfa_sm_fault(lps->bfa, event);
1238 }
1239 }
1240
1241 /*
1242 * login is in progress -- awaiting response from firmware
1243 */
1244 static void
1245 bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event)
1246 {
1247 bfa_trc(lps->bfa, lps->lp_tag);
1248 bfa_trc(lps->bfa, event);
1249
1250 switch (event) {
1251 case BFA_LPS_SM_FWRSP:
1252 if (lps->status == BFA_STATUS_OK) {
1253 bfa_sm_set_state(lps, bfa_lps_sm_online);
1254 if (lps->fdisc)
1255 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1256 BFA_PL_EID_LOGIN, 0, "FDISC Accept");
1257 else
1258 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1259 BFA_PL_EID_LOGIN, 0, "FLOGI Accept");
1260 /* If N2N, send the assigned PID to FW */
1261 bfa_trc(lps->bfa, lps->fport);
1262 bfa_trc(lps->bfa, lps->lp_pid);
1263
1264 if (!lps->fport && lps->lp_pid)
1265 bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID);
1266 } else {
1267 bfa_sm_set_state(lps, bfa_lps_sm_init);
1268 if (lps->fdisc)
1269 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1270 BFA_PL_EID_LOGIN, 0,
1271 "FDISC Fail (RJT or timeout)");
1272 else
1273 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1274 BFA_PL_EID_LOGIN, 0,
1275 "FLOGI Fail (RJT or timeout)");
1276 }
1277 bfa_lps_login_comp(lps);
1278 break;
1279
1280 case BFA_LPS_SM_OFFLINE:
1281 bfa_sm_set_state(lps, bfa_lps_sm_init);
1282 break;
1283
1284 case BFA_LPS_SM_SET_N2N_PID:
1285 bfa_trc(lps->bfa, lps->fport);
1286 bfa_trc(lps->bfa, lps->lp_pid);
1287 break;
1288
1289 default:
1290 bfa_sm_fault(lps->bfa, event);
1291 }
1292 }
1293
1294 /*
1295 * login pending - awaiting space in request queue
1296 */
1297 static void
1298 bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event event)
1299 {
1300 bfa_trc(lps->bfa, lps->lp_tag);
1301 bfa_trc(lps->bfa, event);
1302
1303 switch (event) {
1304 case BFA_LPS_SM_RESUME:
1305 bfa_sm_set_state(lps, bfa_lps_sm_login);
1306 break;
1307
1308 case BFA_LPS_SM_OFFLINE:
1309 bfa_sm_set_state(lps, bfa_lps_sm_init);
1310 bfa_reqq_wcancel(&lps->wqe);
1311 break;
1312
1313 case BFA_LPS_SM_RX_CVL:
1314 /*
1315 * Login was not even sent out; so when getting out
1316 * of this state, it will appear like a login retry
1317 * after Clear virtual link
1318 */
1319 break;
1320
1321 default:
1322 bfa_sm_fault(lps->bfa, event);
1323 }
1324 }
1325
1326 /*
1327 * login complete
1328 */
1329 static void
1330 bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event)
1331 {
1332 bfa_trc(lps->bfa, lps->lp_tag);
1333 bfa_trc(lps->bfa, event);
1334
1335 switch (event) {
1336 case BFA_LPS_SM_LOGOUT:
1337 if (bfa_reqq_full(lps->bfa, lps->reqq)) {
1338 bfa_sm_set_state(lps, bfa_lps_sm_logowait);
1339 bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
1340 } else {
1341 bfa_sm_set_state(lps, bfa_lps_sm_logout);
1342 bfa_lps_send_logout(lps);
1343 }
1344 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1345 BFA_PL_EID_LOGO, 0, "Logout");
1346 break;
1347
1348 case BFA_LPS_SM_RX_CVL:
1349 bfa_sm_set_state(lps, bfa_lps_sm_init);
1350
1351 /* Let the vport module know about this event */
1352 bfa_lps_cvl_event(lps);
1353 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1354 BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
1355 break;
1356
1357 case BFA_LPS_SM_SET_N2N_PID:
1358 if (bfa_reqq_full(lps->bfa, lps->reqq)) {
1359 bfa_sm_set_state(lps, bfa_lps_sm_online_n2n_pid_wait);
1360 bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
1361 } else
1362 bfa_lps_send_set_n2n_pid(lps);
1363 break;
1364
1365 case BFA_LPS_SM_OFFLINE:
1366 case BFA_LPS_SM_DELETE:
1367 bfa_sm_set_state(lps, bfa_lps_sm_init);
1368 break;
1369
1370 default:
1371 bfa_sm_fault(lps->bfa, event);
1372 }
1373 }
1374
1375 /*
1376 * login complete
1377 */
1378 static void
1379 bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps, enum bfa_lps_event event)
1380 {
1381 bfa_trc(lps->bfa, lps->lp_tag);
1382 bfa_trc(lps->bfa, event);
1383
1384 switch (event) {
1385 case BFA_LPS_SM_RESUME:
1386 bfa_sm_set_state(lps, bfa_lps_sm_online);
1387 bfa_lps_send_set_n2n_pid(lps);
1388 break;
1389
1390 case BFA_LPS_SM_LOGOUT:
1391 bfa_sm_set_state(lps, bfa_lps_sm_logowait);
1392 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1393 BFA_PL_EID_LOGO, 0, "Logout");
1394 break;
1395
1396 case BFA_LPS_SM_RX_CVL:
1397 bfa_sm_set_state(lps, bfa_lps_sm_init);
1398 bfa_reqq_wcancel(&lps->wqe);
1399
1400 /* Let the vport module know about this event */
1401 bfa_lps_cvl_event(lps);
1402 bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
1403 BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
1404 break;
1405
1406 case BFA_LPS_SM_OFFLINE:
1407 case BFA_LPS_SM_DELETE:
1408 bfa_sm_set_state(lps, bfa_lps_sm_init);
1409 bfa_reqq_wcancel(&lps->wqe);
1410 break;
1411
1412 default:
1413 bfa_sm_fault(lps->bfa, event);
1414 }
1415 }
1416
1417 /*
1418 * logout in progress - awaiting firmware response
1419 */
1420 static void
1421 bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event)
1422 {
1423 bfa_trc(lps->bfa, lps->lp_tag);
1424 bfa_trc(lps->bfa, event);
1425
1426 switch (event) {
1427 case BFA_LPS_SM_FWRSP:
1428 bfa_sm_set_state(lps, bfa_lps_sm_init);
1429 bfa_lps_logout_comp(lps);
1430 break;
1431
1432 case BFA_LPS_SM_OFFLINE:
1433 bfa_sm_set_state(lps, bfa_lps_sm_init);
1434 break;
1435
1436 default:
1437 bfa_sm_fault(lps->bfa, event);
1438 }
1439 }
1440
1441 /*
1442 * logout pending -- awaiting space in request queue
1443 */
1444 static void
1445 bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event event)
1446 {
1447 bfa_trc(lps->bfa, lps->lp_tag);
1448 bfa_trc(lps->bfa, event);
1449
1450 switch (event) {
1451 case BFA_LPS_SM_RESUME:
1452 bfa_sm_set_state(lps, bfa_lps_sm_logout);
1453 bfa_lps_send_logout(lps);
1454 break;
1455
1456 case BFA_LPS_SM_OFFLINE:
1457 bfa_sm_set_state(lps, bfa_lps_sm_init);
1458 bfa_reqq_wcancel(&lps->wqe);
1459 break;
1460
1461 default:
1462 bfa_sm_fault(lps->bfa, event);
1463 }
1464 }
1465
1466
1467
1468 /*
1469 * lps_pvt BFA LPS private functions
1470 */
1471
1472 /*
1473 * return memory requirement
1474 */
1475 static void
1476 bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
1477 u32 *dm_len)
1478 {
1479 if (cfg->drvcfg.min_cfg)
1480 *ndm_len += sizeof(struct bfa_lps_s) * BFA_LPS_MIN_LPORTS;
1481 else
1482 *ndm_len += sizeof(struct bfa_lps_s) * BFA_LPS_MAX_LPORTS;
1483 }
1484
1485 /*
1486 * bfa module attach at initialization time
1487 */
1488 static void
1489 bfa_lps_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
1490 struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
1491 {
1492 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1493 struct bfa_lps_s *lps;
1494 int i;
1495
1496 memset(mod, 0, sizeof(struct bfa_lps_mod_s));
1497 mod->num_lps = BFA_LPS_MAX_LPORTS;
1498 if (cfg->drvcfg.min_cfg)
1499 mod->num_lps = BFA_LPS_MIN_LPORTS;
1500 else
1501 mod->num_lps = BFA_LPS_MAX_LPORTS;
1502 mod->lps_arr = lps = (struct bfa_lps_s *) bfa_meminfo_kva(meminfo);
1503
1504 bfa_meminfo_kva(meminfo) += mod->num_lps * sizeof(struct bfa_lps_s);
1505
1506 INIT_LIST_HEAD(&mod->lps_free_q);
1507 INIT_LIST_HEAD(&mod->lps_active_q);
1508
1509 for (i = 0; i < mod->num_lps; i++, lps++) {
1510 lps->bfa = bfa;
1511 lps->lp_tag = (u8) i;
1512 lps->reqq = BFA_REQQ_LPS;
1513 bfa_reqq_winit(&lps->wqe, bfa_lps_reqq_resume, lps);
1514 list_add_tail(&lps->qe, &mod->lps_free_q);
1515 }
1516 }
1517
1518 static void
1519 bfa_lps_detach(struct bfa_s *bfa)
1520 {
1521 }
1522
1523 static void
1524 bfa_lps_start(struct bfa_s *bfa)
1525 {
1526 }
1527
1528 static void
1529 bfa_lps_stop(struct bfa_s *bfa)
1530 {
1531 }
1532
1533 /*
1534 * IOC in disabled state -- consider all lps offline
1535 */
1536 static void
1537 bfa_lps_iocdisable(struct bfa_s *bfa)
1538 {
1539 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1540 struct bfa_lps_s *lps;
1541 struct list_head *qe, *qen;
1542
1543 list_for_each_safe(qe, qen, &mod->lps_active_q) {
1544 lps = (struct bfa_lps_s *) qe;
1545 bfa_sm_send_event(lps, BFA_LPS_SM_OFFLINE);
1546 }
1547 }
1548
1549 /*
1550 * Firmware login response
1551 */
1552 static void
1553 bfa_lps_login_rsp(struct bfa_s *bfa, struct bfi_lps_login_rsp_s *rsp)
1554 {
1555 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1556 struct bfa_lps_s *lps;
1557
1558 WARN_ON(rsp->lp_tag >= mod->num_lps);
1559 lps = BFA_LPS_FROM_TAG(mod, rsp->lp_tag);
1560
1561 lps->status = rsp->status;
1562 switch (rsp->status) {
1563 case BFA_STATUS_OK:
1564 lps->fport = rsp->f_port;
1565 if (lps->fport)
1566 lps->lp_pid = rsp->lp_pid;
1567 lps->npiv_en = rsp->npiv_en;
1568 lps->pr_bbcred = be16_to_cpu(rsp->bb_credit);
1569 lps->pr_pwwn = rsp->port_name;
1570 lps->pr_nwwn = rsp->node_name;
1571 lps->auth_req = rsp->auth_req;
1572 lps->lp_mac = rsp->lp_mac;
1573 lps->brcd_switch = rsp->brcd_switch;
1574 lps->fcf_mac = rsp->fcf_mac;
1575
1576 break;
1577
1578 case BFA_STATUS_FABRIC_RJT:
1579 lps->lsrjt_rsn = rsp->lsrjt_rsn;
1580 lps->lsrjt_expl = rsp->lsrjt_expl;
1581
1582 break;
1583
1584 case BFA_STATUS_EPROTOCOL:
1585 lps->ext_status = rsp->ext_status;
1586
1587 break;
1588
1589 default:
1590 /* Nothing to do with other status */
1591 break;
1592 }
1593
1594 bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
1595 }
1596
1597 /*
1598 * Firmware logout response
1599 */
1600 static void
1601 bfa_lps_logout_rsp(struct bfa_s *bfa, struct bfi_lps_logout_rsp_s *rsp)
1602 {
1603 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1604 struct bfa_lps_s *lps;
1605
1606 WARN_ON(rsp->lp_tag >= mod->num_lps);
1607 lps = BFA_LPS_FROM_TAG(mod, rsp->lp_tag);
1608
1609 bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
1610 }
1611
1612 /*
1613 * Firmware received a Clear virtual link request (for FCoE)
1614 */
1615 static void
1616 bfa_lps_rx_cvl_event(struct bfa_s *bfa, struct bfi_lps_cvl_event_s *cvl)
1617 {
1618 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1619 struct bfa_lps_s *lps;
1620
1621 lps = BFA_LPS_FROM_TAG(mod, cvl->lp_tag);
1622
1623 bfa_sm_send_event(lps, BFA_LPS_SM_RX_CVL);
1624 }
1625
1626 /*
1627 * Space is available in request queue, resume queueing request to firmware.
1628 */
1629 static void
1630 bfa_lps_reqq_resume(void *lps_arg)
1631 {
1632 struct bfa_lps_s *lps = lps_arg;
1633
1634 bfa_sm_send_event(lps, BFA_LPS_SM_RESUME);
1635 }
1636
1637 /*
1638 * lps is freed -- triggered by vport delete
1639 */
1640 static void
1641 bfa_lps_free(struct bfa_lps_s *lps)
1642 {
1643 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(lps->bfa);
1644
1645 lps->lp_pid = 0;
1646 list_del(&lps->qe);
1647 list_add_tail(&lps->qe, &mod->lps_free_q);
1648 }
1649
1650 /*
1651 * send login request to firmware
1652 */
1653 static void
1654 bfa_lps_send_login(struct bfa_lps_s *lps)
1655 {
1656 struct bfi_lps_login_req_s *m;
1657
1658 m = bfa_reqq_next(lps->bfa, lps->reqq);
1659 WARN_ON(!m);
1660
1661 bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_LOGIN_REQ,
1662 bfa_lpuid(lps->bfa));
1663
1664 m->lp_tag = lps->lp_tag;
1665 m->alpa = lps->alpa;
1666 m->pdu_size = cpu_to_be16(lps->pdusz);
1667 m->pwwn = lps->pwwn;
1668 m->nwwn = lps->nwwn;
1669 m->fdisc = lps->fdisc;
1670 m->auth_en = lps->auth_en;
1671
1672 bfa_reqq_produce(lps->bfa, lps->reqq);
1673 }
1674
1675 /*
1676 * send logout request to firmware
1677 */
1678 static void
1679 bfa_lps_send_logout(struct bfa_lps_s *lps)
1680 {
1681 struct bfi_lps_logout_req_s *m;
1682
1683 m = bfa_reqq_next(lps->bfa, lps->reqq);
1684 WARN_ON(!m);
1685
1686 bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_LOGOUT_REQ,
1687 bfa_lpuid(lps->bfa));
1688
1689 m->lp_tag = lps->lp_tag;
1690 m->port_name = lps->pwwn;
1691 bfa_reqq_produce(lps->bfa, lps->reqq);
1692 }
1693
1694 /*
1695 * send n2n pid set request to firmware
1696 */
1697 static void
1698 bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps)
1699 {
1700 struct bfi_lps_n2n_pid_req_s *m;
1701
1702 m = bfa_reqq_next(lps->bfa, lps->reqq);
1703 WARN_ON(!m);
1704
1705 bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_N2N_PID_REQ,
1706 bfa_lpuid(lps->bfa));
1707
1708 m->lp_tag = lps->lp_tag;
1709 m->lp_pid = lps->lp_pid;
1710 bfa_reqq_produce(lps->bfa, lps->reqq);
1711 }
1712
1713 /*
1714 * Indirect login completion handler for non-fcs
1715 */
1716 static void
1717 bfa_lps_login_comp_cb(void *arg, bfa_boolean_t complete)
1718 {
1719 struct bfa_lps_s *lps = arg;
1720
1721 if (!complete)
1722 return;
1723
1724 if (lps->fdisc)
1725 bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status);
1726 else
1727 bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status);
1728 }
1729
1730 /*
1731 * Login completion handler -- direct call for fcs, queue for others
1732 */
1733 static void
1734 bfa_lps_login_comp(struct bfa_lps_s *lps)
1735 {
1736 if (!lps->bfa->fcs) {
1737 bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_login_comp_cb,
1738 lps);
1739 return;
1740 }
1741
1742 if (lps->fdisc)
1743 bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status);
1744 else
1745 bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status);
1746 }
1747
1748 /*
1749 * Indirect logout completion handler for non-fcs
1750 */
1751 static void
1752 bfa_lps_logout_comp_cb(void *arg, bfa_boolean_t complete)
1753 {
1754 struct bfa_lps_s *lps = arg;
1755
1756 if (!complete)
1757 return;
1758
1759 if (lps->fdisc)
1760 bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
1761 }
1762
1763 /*
1764 * Logout completion handler -- direct call for fcs, queue for others
1765 */
1766 static void
1767 bfa_lps_logout_comp(struct bfa_lps_s *lps)
1768 {
1769 if (!lps->bfa->fcs) {
1770 bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_logout_comp_cb,
1771 lps);
1772 return;
1773 }
1774 if (lps->fdisc)
1775 bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
1776 }
1777
1778 /*
1779 * Clear virtual link completion handler for non-fcs
1780 */
1781 static void
1782 bfa_lps_cvl_event_cb(void *arg, bfa_boolean_t complete)
1783 {
1784 struct bfa_lps_s *lps = arg;
1785
1786 if (!complete)
1787 return;
1788
1789 /* Clear virtual link to base port will result in link down */
1790 if (lps->fdisc)
1791 bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
1792 }
1793
1794 /*
1795 * Received Clear virtual link event --direct call for fcs,
1796 * queue for others
1797 */
1798 static void
1799 bfa_lps_cvl_event(struct bfa_lps_s *lps)
1800 {
1801 if (!lps->bfa->fcs) {
1802 bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_cvl_event_cb,
1803 lps);
1804 return;
1805 }
1806
1807 /* Clear virtual link to base port will result in link down */
1808 if (lps->fdisc)
1809 bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
1810 }
1811
1812
1813
1814 /*
1815 * lps_public BFA LPS public functions
1816 */
1817
1818 u32
1819 bfa_lps_get_max_vport(struct bfa_s *bfa)
1820 {
1821 if (bfa_ioc_devid(&bfa->ioc) == BFA_PCI_DEVICE_ID_CT)
1822 return BFA_LPS_MAX_VPORTS_SUPP_CT;
1823 else
1824 return BFA_LPS_MAX_VPORTS_SUPP_CB;
1825 }
1826
1827 /*
1828 * Allocate a lport srvice tag.
1829 */
1830 struct bfa_lps_s *
1831 bfa_lps_alloc(struct bfa_s *bfa)
1832 {
1833 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1834 struct bfa_lps_s *lps = NULL;
1835
1836 bfa_q_deq(&mod->lps_free_q, &lps);
1837
1838 if (lps == NULL)
1839 return NULL;
1840
1841 list_add_tail(&lps->qe, &mod->lps_active_q);
1842
1843 bfa_sm_set_state(lps, bfa_lps_sm_init);
1844 return lps;
1845 }
1846
1847 /*
1848 * Free lport service tag. This can be called anytime after an alloc.
1849 * No need to wait for any pending login/logout completions.
1850 */
1851 void
1852 bfa_lps_delete(struct bfa_lps_s *lps)
1853 {
1854 bfa_sm_send_event(lps, BFA_LPS_SM_DELETE);
1855 }
1856
1857 /*
1858 * Initiate a lport login.
1859 */
1860 void
1861 bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa, u16 pdusz,
1862 wwn_t pwwn, wwn_t nwwn, bfa_boolean_t auth_en)
1863 {
1864 lps->uarg = uarg;
1865 lps->alpa = alpa;
1866 lps->pdusz = pdusz;
1867 lps->pwwn = pwwn;
1868 lps->nwwn = nwwn;
1869 lps->fdisc = BFA_FALSE;
1870 lps->auth_en = auth_en;
1871 bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN);
1872 }
1873
1874 /*
1875 * Initiate a lport fdisc login.
1876 */
1877 void
1878 bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz, wwn_t pwwn,
1879 wwn_t nwwn)
1880 {
1881 lps->uarg = uarg;
1882 lps->alpa = 0;
1883 lps->pdusz = pdusz;
1884 lps->pwwn = pwwn;
1885 lps->nwwn = nwwn;
1886 lps->fdisc = BFA_TRUE;
1887 lps->auth_en = BFA_FALSE;
1888 bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN);
1889 }
1890
1891
1892 /*
1893 * Initiate a lport FDSIC logout.
1894 */
1895 void
1896 bfa_lps_fdisclogo(struct bfa_lps_s *lps)
1897 {
1898 bfa_sm_send_event(lps, BFA_LPS_SM_LOGOUT);
1899 }
1900
1901
1902 /*
1903 * Return lport services tag given the pid
1904 */
1905 u8
1906 bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid)
1907 {
1908 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1909 struct bfa_lps_s *lps;
1910 int i;
1911
1912 for (i = 0, lps = mod->lps_arr; i < mod->num_lps; i++, lps++) {
1913 if (lps->lp_pid == pid)
1914 return lps->lp_tag;
1915 }
1916
1917 /* Return base port tag anyway */
1918 return 0;
1919 }
1920
1921
1922 /*
1923 * return port id assigned to the base lport
1924 */
1925 u32
1926 bfa_lps_get_base_pid(struct bfa_s *bfa)
1927 {
1928 struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
1929
1930 return BFA_LPS_FROM_TAG(mod, 0)->lp_pid;
1931 }
1932
1933 /*
1934 * Set PID in case of n2n (which is assigned during PLOGI)
1935 */
1936 void
1937 bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, uint32_t n2n_pid)
1938 {
1939 bfa_trc(lps->bfa, lps->lp_tag);
1940 bfa_trc(lps->bfa, n2n_pid);
1941
1942 lps->lp_pid = n2n_pid;
1943 bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID);
1944 }
1945
1946 /*
1947 * LPS firmware message class handler.
1948 */
1949 void
1950 bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
1951 {
1952 union bfi_lps_i2h_msg_u msg;
1953
1954 bfa_trc(bfa, m->mhdr.msg_id);
1955 msg.msg = m;
1956
1957 switch (m->mhdr.msg_id) {
1958 case BFI_LPS_H2I_LOGIN_RSP:
1959 bfa_lps_login_rsp(bfa, msg.login_rsp);
1960 break;
1961
1962 case BFI_LPS_H2I_LOGOUT_RSP:
1963 bfa_lps_logout_rsp(bfa, msg.logout_rsp);
1964 break;
1965
1966 case BFI_LPS_H2I_CVL_EVENT:
1967 bfa_lps_rx_cvl_event(bfa, msg.cvl_event);
1968 break;
1969
1970 default:
1971 bfa_trc(bfa, m->mhdr.msg_id);
1972 WARN_ON(1);
1973 }
1974 }
1975
1976 /*
1977 * FC PORT state machine functions
1978 */
1979 static void
1980 bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
1981 enum bfa_fcport_sm_event event)
1982 {
1983 bfa_trc(fcport->bfa, event);
1984
1985 switch (event) {
1986 case BFA_FCPORT_SM_START:
1987 /*
1988 * Start event after IOC is configured and BFA is started.
1989 */
1990 fcport->use_flash_cfg = BFA_TRUE;
1991
1992 if (bfa_fcport_send_enable(fcport)) {
1993 bfa_trc(fcport->bfa, BFA_TRUE);
1994 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
1995 } else {
1996 bfa_trc(fcport->bfa, BFA_FALSE);
1997 bfa_sm_set_state(fcport,
1998 bfa_fcport_sm_enabling_qwait);
1999 }
2000 break;
2001
2002 case BFA_FCPORT_SM_ENABLE:
2003 /*
2004 * Port is persistently configured to be in enabled state. Do
2005 * not change state. Port enabling is done when START event is
2006 * received.
2007 */
2008 break;
2009
2010 case BFA_FCPORT_SM_DISABLE:
2011 /*
2012 * If a port is persistently configured to be disabled, the
2013 * first event will a port disable request.
2014 */
2015 bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
2016 break;
2017
2018 case BFA_FCPORT_SM_HWFAIL:
2019 bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
2020 break;
2021
2022 default:
2023 bfa_sm_fault(fcport->bfa, event);
2024 }
2025 }
2026
2027 static void
2028 bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
2029 enum bfa_fcport_sm_event event)
2030 {
2031 char pwwn_buf[BFA_STRING_32];
2032 struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
2033 bfa_trc(fcport->bfa, event);
2034
2035 switch (event) {
2036 case BFA_FCPORT_SM_QRESUME:
2037 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
2038 bfa_fcport_send_enable(fcport);
2039 break;
2040
2041 case BFA_FCPORT_SM_STOP:
2042 bfa_reqq_wcancel(&fcport->reqq_wait);
2043 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2044 break;
2045
2046 case BFA_FCPORT_SM_ENABLE:
2047 /*
2048 * Already enable is in progress.
2049 */
2050 break;
2051
2052 case BFA_FCPORT_SM_DISABLE:
2053 /*
2054 * Just send disable request to firmware when room becomes
2055 * available in request queue.
2056 */
2057 bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
2058 bfa_reqq_wcancel(&fcport->reqq_wait);
2059 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2060 BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
2061 wwn2str(pwwn_buf, fcport->pwwn);
2062 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2063 "Base port disabled: WWN = %s\n", pwwn_buf);
2064 break;
2065
2066 case BFA_FCPORT_SM_LINKUP:
2067 case BFA_FCPORT_SM_LINKDOWN:
2068 /*
2069 * Possible to get link events when doing back-to-back
2070 * enable/disables.
2071 */
2072 break;
2073
2074 case BFA_FCPORT_SM_HWFAIL:
2075 bfa_reqq_wcancel(&fcport->reqq_wait);
2076 bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
2077 break;
2078
2079 default:
2080 bfa_sm_fault(fcport->bfa, event);
2081 }
2082 }
2083
2084 static void
2085 bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
2086 enum bfa_fcport_sm_event event)
2087 {
2088 char pwwn_buf[BFA_STRING_32];
2089 struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
2090 bfa_trc(fcport->bfa, event);
2091
2092 switch (event) {
2093 case BFA_FCPORT_SM_FWRSP:
2094 case BFA_FCPORT_SM_LINKDOWN:
2095 bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
2096 break;
2097
2098 case BFA_FCPORT_SM_LINKUP:
2099 bfa_fcport_update_linkinfo(fcport);
2100 bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);
2101
2102 WARN_ON(!fcport->event_cbfn);
2103 bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE);
2104 break;
2105
2106 case BFA_FCPORT_SM_ENABLE:
2107 /*
2108 * Already being enabled.
2109 */
2110 break;
2111
2112 case BFA_FCPORT_SM_DISABLE:
2113 if (bfa_fcport_send_disable(fcport))
2114 bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
2115 else
2116 bfa_sm_set_state(fcport,
2117 bfa_fcport_sm_disabling_qwait);
2118
2119 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2120 BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
2121 wwn2str(pwwn_buf, fcport->pwwn);
2122 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2123 "Base port disabled: WWN = %s\n", pwwn_buf);
2124 break;
2125
2126 case BFA_FCPORT_SM_STOP:
2127 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2128 break;
2129
2130 case BFA_FCPORT_SM_HWFAIL:
2131 bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
2132 break;
2133
2134 default:
2135 bfa_sm_fault(fcport->bfa, event);
2136 }
2137 }
2138
2139 static void
2140 bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
2141 enum bfa_fcport_sm_event event)
2142 {
2143 struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event;
2144 char pwwn_buf[BFA_STRING_32];
2145 struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
2146
2147 bfa_trc(fcport->bfa, event);
2148
2149 switch (event) {
2150 case BFA_FCPORT_SM_LINKUP:
2151 bfa_fcport_update_linkinfo(fcport);
2152 bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);
2153 WARN_ON(!fcport->event_cbfn);
2154 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2155 BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkup");
2156 if (!bfa_ioc_get_fcmode(&fcport->bfa->ioc)) {
2157
2158 bfa_trc(fcport->bfa,
2159 pevent->link_state.vc_fcf.fcf.fipenabled);
2160 bfa_trc(fcport->bfa,
2161 pevent->link_state.vc_fcf.fcf.fipfailed);
2162
2163 if (pevent->link_state.vc_fcf.fcf.fipfailed)
2164 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2165 BFA_PL_EID_FIP_FCF_DISC, 0,
2166 "FIP FCF Discovery Failed");
2167 else
2168 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2169 BFA_PL_EID_FIP_FCF_DISC, 0,
2170 "FIP FCF Discovered");
2171 }
2172
2173 bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE);
2174 wwn2str(pwwn_buf, fcport->pwwn);
2175 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2176 "Base port online: WWN = %s\n", pwwn_buf);
2177 break;
2178
2179 case BFA_FCPORT_SM_LINKDOWN:
2180 /*
2181 * Possible to get link down event.
2182 */
2183 break;
2184
2185 case BFA_FCPORT_SM_ENABLE:
2186 /*
2187 * Already enabled.
2188 */
2189 break;
2190
2191 case BFA_FCPORT_SM_DISABLE:
2192 if (bfa_fcport_send_disable(fcport))
2193 bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
2194 else
2195 bfa_sm_set_state(fcport,
2196 bfa_fcport_sm_disabling_qwait);
2197
2198 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2199 BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
2200 wwn2str(pwwn_buf, fcport->pwwn);
2201 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2202 "Base port disabled: WWN = %s\n", pwwn_buf);
2203 break;
2204
2205 case BFA_FCPORT_SM_STOP:
2206 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2207 break;
2208
2209 case BFA_FCPORT_SM_HWFAIL:
2210 bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
2211 break;
2212
2213 default:
2214 bfa_sm_fault(fcport->bfa, event);
2215 }
2216 }
2217
2218 static void
2219 bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport,
2220 enum bfa_fcport_sm_event event)
2221 {
2222 char pwwn_buf[BFA_STRING_32];
2223 struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
2224
2225 bfa_trc(fcport->bfa, event);
2226
2227 switch (event) {
2228 case BFA_FCPORT_SM_ENABLE:
2229 /*
2230 * Already enabled.
2231 */
2232 break;
2233
2234 case BFA_FCPORT_SM_DISABLE:
2235 if (bfa_fcport_send_disable(fcport))
2236 bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
2237 else
2238 bfa_sm_set_state(fcport,
2239 bfa_fcport_sm_disabling_qwait);
2240
2241 bfa_fcport_reset_linkinfo(fcport);
2242 bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
2243 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2244 BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
2245 wwn2str(pwwn_buf, fcport->pwwn);
2246 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2247 "Base port offline: WWN = %s\n", pwwn_buf);
2248 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2249 "Base port disabled: WWN = %s\n", pwwn_buf);
2250 break;
2251
2252 case BFA_FCPORT_SM_LINKDOWN:
2253 bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
2254 bfa_fcport_reset_linkinfo(fcport);
2255 bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
2256 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2257 BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkdown");
2258 wwn2str(pwwn_buf, fcport->pwwn);
2259 if (BFA_PORT_IS_DISABLED(fcport->bfa))
2260 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2261 "Base port offline: WWN = %s\n", pwwn_buf);
2262 else
2263 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
2264 "Base port (WWN = %s) "
2265 "lost fabric connectivity\n", pwwn_buf);
2266 break;
2267
2268 case BFA_FCPORT_SM_STOP:
2269 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2270 bfa_fcport_reset_linkinfo(fcport);
2271 wwn2str(pwwn_buf, fcport->pwwn);
2272 if (BFA_PORT_IS_DISABLED(fcport->bfa))
2273 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2274 "Base port offline: WWN = %s\n", pwwn_buf);
2275 else
2276 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
2277 "Base port (WWN = %s) "
2278 "lost fabric connectivity\n", pwwn_buf);
2279 break;
2280
2281 case BFA_FCPORT_SM_HWFAIL:
2282 bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
2283 bfa_fcport_reset_linkinfo(fcport);
2284 bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
2285 wwn2str(pwwn_buf, fcport->pwwn);
2286 if (BFA_PORT_IS_DISABLED(fcport->bfa))
2287 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2288 "Base port offline: WWN = %s\n", pwwn_buf);
2289 else
2290 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
2291 "Base port (WWN = %s) "
2292 "lost fabric connectivity\n", pwwn_buf);
2293 break;
2294
2295 default:
2296 bfa_sm_fault(fcport->bfa, event);
2297 }
2298 }
2299
2300 static void
2301 bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport,
2302 enum bfa_fcport_sm_event event)
2303 {
2304 bfa_trc(fcport->bfa, event);
2305
2306 switch (event) {
2307 case BFA_FCPORT_SM_QRESUME:
2308 bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
2309 bfa_fcport_send_disable(fcport);
2310 break;
2311
2312 case BFA_FCPORT_SM_STOP:
2313 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2314 bfa_reqq_wcancel(&fcport->reqq_wait);
2315 break;
2316
2317 case BFA_FCPORT_SM_ENABLE:
2318 bfa_sm_set_state(fcport, bfa_fcport_sm_toggling_qwait);
2319 break;
2320
2321 case BFA_FCPORT_SM_DISABLE:
2322 /*
2323 * Already being disabled.
2324 */
2325 break;
2326
2327 case BFA_FCPORT_SM_LINKUP:
2328 case BFA_FCPORT_SM_LINKDOWN:
2329 /*
2330 * Possible to get link events when doing back-to-back
2331 * enable/disables.
2332 */
2333 break;
2334
2335 case BFA_FCPORT_SM_HWFAIL:
2336 bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
2337 bfa_reqq_wcancel(&fcport->reqq_wait);
2338 break;
2339
2340 default:
2341 bfa_sm_fault(fcport->bfa, event);
2342 }
2343 }
2344
2345 static void
2346 bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport,
2347 enum bfa_fcport_sm_event event)
2348 {
2349 bfa_trc(fcport->bfa, event);
2350
2351 switch (event) {
2352 case BFA_FCPORT_SM_QRESUME:
2353 bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
2354 bfa_fcport_send_disable(fcport);
2355 if (bfa_fcport_send_enable(fcport))
2356 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
2357 else
2358 bfa_sm_set_state(fcport,
2359 bfa_fcport_sm_enabling_qwait);
2360 break;
2361
2362 case BFA_FCPORT_SM_STOP:
2363 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2364 bfa_reqq_wcancel(&fcport->reqq_wait);
2365 break;
2366
2367 case BFA_FCPORT_SM_ENABLE:
2368 break;
2369
2370 case BFA_FCPORT_SM_DISABLE:
2371 bfa_sm_set_state(fcport, bfa_fcport_sm_disabling_qwait);
2372 break;
2373
2374 case BFA_FCPORT_SM_LINKUP:
2375 case BFA_FCPORT_SM_LINKDOWN:
2376 /*
2377 * Possible to get link events when doing back-to-back
2378 * enable/disables.
2379 */
2380 break;
2381
2382 case BFA_FCPORT_SM_HWFAIL:
2383 bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
2384 bfa_reqq_wcancel(&fcport->reqq_wait);
2385 break;
2386
2387 default:
2388 bfa_sm_fault(fcport->bfa, event);
2389 }
2390 }
2391
2392 static void
2393 bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
2394 enum bfa_fcport_sm_event event)
2395 {
2396 char pwwn_buf[BFA_STRING_32];
2397 struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
2398 bfa_trc(fcport->bfa, event);
2399
2400 switch (event) {
2401 case BFA_FCPORT_SM_FWRSP:
2402 bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
2403 break;
2404
2405 case BFA_FCPORT_SM_DISABLE:
2406 /*
2407 * Already being disabled.
2408 */
2409 break;
2410
2411 case BFA_FCPORT_SM_ENABLE:
2412 if (bfa_fcport_send_enable(fcport))
2413 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
2414 else
2415 bfa_sm_set_state(fcport,
2416 bfa_fcport_sm_enabling_qwait);
2417
2418 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2419 BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
2420 wwn2str(pwwn_buf, fcport->pwwn);
2421 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2422 "Base port enabled: WWN = %s\n", pwwn_buf);
2423 break;
2424
2425 case BFA_FCPORT_SM_STOP:
2426 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2427 break;
2428
2429 case BFA_FCPORT_SM_LINKUP:
2430 case BFA_FCPORT_SM_LINKDOWN:
2431 /*
2432 * Possible to get link events when doing back-to-back
2433 * enable/disables.
2434 */
2435 break;
2436
2437 case BFA_FCPORT_SM_HWFAIL:
2438 bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
2439 break;
2440
2441 default:
2442 bfa_sm_fault(fcport->bfa, event);
2443 }
2444 }
2445
2446 static void
2447 bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
2448 enum bfa_fcport_sm_event event)
2449 {
2450 char pwwn_buf[BFA_STRING_32];
2451 struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
2452 bfa_trc(fcport->bfa, event);
2453
2454 switch (event) {
2455 case BFA_FCPORT_SM_START:
2456 /*
2457 * Ignore start event for a port that is disabled.
2458 */
2459 break;
2460
2461 case BFA_FCPORT_SM_STOP:
2462 bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
2463 break;
2464
2465 case BFA_FCPORT_SM_ENABLE:
2466 if (bfa_fcport_send_enable(fcport))
2467 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
2468 else
2469 bfa_sm_set_state(fcport,
2470 bfa_fcport_sm_enabling_qwait);
2471
2472 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
2473 BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
2474 wwn2str(pwwn_buf, fcport->pwwn);
2475 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
2476 "Base port enabled: WWN = %s\n", pwwn_buf);
2477 break;
2478
2479 case BFA_FCPORT_SM_DISABLE:
2480 /*
2481 * Already disabled.
2482 */
2483 break;
2484
2485 case BFA_FCPORT_SM_HWFAIL:
2486 bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
2487 break;
2488
2489 default:
2490 bfa_sm_fault(fcport->bfa, event);
2491 }
2492 }
2493
2494 static void
2495 bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport,
2496 enum bfa_fcport_sm_event event)
2497 {
2498 bfa_trc(fcport->bfa, event);
2499
2500 switch (event) {
2501 case BFA_FCPORT_SM_START:
2502 if (bfa_fcport_send_enable(fcport))
2503 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
2504 else
2505 bfa_sm_set_state(fcport,
2506 bfa_fcport_sm_enabling_qwait);
2507 break;
2508
2509 default:
2510 /*
2511 * Ignore all other events.
2512 */
2513 ;
2514 }
2515 }
2516
2517 /*
2518 * Port is enabled. IOC is down/failed.
2519 */
2520 static void
2521 bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport,
2522 enum bfa_fcport_sm_event event)
2523 {
2524 bfa_trc(fcport->bfa, event);
2525
2526 switch (event) {
2527 case BFA_FCPORT_SM_START:
2528 if (bfa_fcport_send_enable(fcport))
2529 bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
2530 else
2531 bfa_sm_set_state(fcport,
2532 bfa_fcport_sm_enabling_qwait);
2533 break;
2534
2535 default:
2536 /*
2537 * Ignore all events.
2538 */
2539 ;
2540 }
2541 }
2542
2543 /*
2544 * Port is disabled. IOC is down/failed.
2545 */
2546 static void
2547 bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport,
2548 enum bfa_fcport_sm_event event)
2549 {
2550 bfa_trc(fcport->bfa, event);
2551
2552 switch (event) {
2553 case BFA_FCPORT_SM_START:
2554 bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
2555 break;
2556
2557 case BFA_FCPORT_SM_ENABLE:
2558 bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
2559 break;
2560
2561 default:
2562 /*
2563 * Ignore all events.
2564 */
2565 ;
2566 }
2567 }
2568
2569 /*
2570 * Link state is down
2571 */
2572 static void
2573 bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln,
2574 enum bfa_fcport_ln_sm_event event)
2575 {
2576 bfa_trc(ln->fcport->bfa, event);
2577
2578 switch (event) {
2579 case BFA_FCPORT_LN_SM_LINKUP:
2580 bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf);
2581 bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP);
2582 break;
2583
2584 default:
2585 bfa_sm_fault(ln->fcport->bfa, event);
2586 }
2587 }
2588
2589 /*
2590 * Link state is waiting for down notification
2591 */
2592 static void
2593 bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln,
2594 enum bfa_fcport_ln_sm_event event)
2595 {
2596 bfa_trc(ln->fcport->bfa, event);
2597
2598 switch (event) {
2599 case BFA_FCPORT_LN_SM_LINKUP:
2600 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf);
2601 break;
2602
2603 case BFA_FCPORT_LN_SM_NOTIFICATION:
2604 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn);
2605 break;
2606
2607 default:
2608 bfa_sm_fault(ln->fcport->bfa, event);
2609 }
2610 }
2611
2612 /*
2613 * Link state is waiting for down notification and there is a pending up
2614 */
2615 static void
2616 bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln,
2617 enum bfa_fcport_ln_sm_event event)
2618 {
2619 bfa_trc(ln->fcport->bfa, event);
2620
2621 switch (event) {
2622 case BFA_FCPORT_LN_SM_LINKDOWN:
2623 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
2624 break;
2625
2626 case BFA_FCPORT_LN_SM_NOTIFICATION:
2627 bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf);
2628 bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP);
2629 break;
2630
2631 default:
2632 bfa_sm_fault(ln->fcport->bfa, event);
2633 }
2634 }
2635
2636 /*
2637 * Link state is up
2638 */
2639 static void
2640 bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
2641 enum bfa_fcport_ln_sm_event event)
2642 {
2643 bfa_trc(ln->fcport->bfa, event);
2644
2645 switch (event) {
2646 case BFA_FCPORT_LN_SM_LINKDOWN:
2647 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
2648 bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
2649 break;
2650
2651 default:
2652 bfa_sm_fault(ln->fcport->bfa, event);
2653 }
2654 }
2655
2656 /*
2657 * Link state is waiting for up notification
2658 */
2659 static void
2660 bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
2661 enum bfa_fcport_ln_sm_event event)
2662 {
2663 bfa_trc(ln->fcport->bfa, event);
2664
2665 switch (event) {
2666 case BFA_FCPORT_LN_SM_LINKDOWN:
2667 bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
2668 break;
2669
2670 case BFA_FCPORT_LN_SM_NOTIFICATION:
2671 bfa_sm_set_state(ln, bfa_fcport_ln_sm_up);
2672 break;
2673
2674 default:
2675 bfa_sm_fault(ln->fcport->bfa, event);
2676 }
2677 }
2678
2679 /*
2680 * Link state is waiting for up notification and there is a pending down
2681 */
2682 static void
2683 bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
2684 enum bfa_fcport_ln_sm_event event)
2685 {
2686 bfa_trc(ln->fcport->bfa, event);
2687
2688 switch (event) {
2689 case BFA_FCPORT_LN_SM_LINKUP:
2690 bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_up_nf);
2691 break;
2692
2693 case BFA_FCPORT_LN_SM_NOTIFICATION:
2694 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
2695 bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
2696 break;
2697
2698 default:
2699 bfa_sm_fault(ln->fcport->bfa, event);
2700 }
2701 }
2702
2703 /*
2704 * Link state is waiting for up notification and there are pending down and up
2705 */
2706 static void
2707 bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
2708 enum bfa_fcport_ln_sm_event event)
2709 {
2710 bfa_trc(ln->fcport->bfa, event);
2711
2712 switch (event) {
2713 case BFA_FCPORT_LN_SM_LINKDOWN:
2714 bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
2715 break;
2716
2717 case BFA_FCPORT_LN_SM_NOTIFICATION:
2718 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf);
2719 bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
2720 break;
2721
2722 default:
2723 bfa_sm_fault(ln->fcport->bfa, event);
2724 }
2725 }
2726
2727 static void
2728 __bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete)
2729 {
2730 struct bfa_fcport_ln_s *ln = cbarg;
2731
2732 if (complete)
2733 ln->fcport->event_cbfn(ln->fcport->event_cbarg, ln->ln_event);
2734 else
2735 bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION);
2736 }
2737
2738 /*
2739 * Send SCN notification to upper layers.
2740 * trunk - false if caller is fcport to ignore fcport event in trunked mode
2741 */
2742 static void
2743 bfa_fcport_scn(struct bfa_fcport_s *fcport, enum bfa_port_linkstate event,
2744 bfa_boolean_t trunk)
2745 {
2746 if (fcport->cfg.trunked && !trunk)
2747 return;
2748
2749 switch (event) {
2750 case BFA_PORT_LINKUP:
2751 bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKUP);
2752 break;
2753 case BFA_PORT_LINKDOWN:
2754 bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKDOWN);
2755 break;
2756 default:
2757 WARN_ON(1);
2758 }
2759 }
2760
2761 static void
2762 bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln, enum bfa_port_linkstate event)
2763 {
2764 struct bfa_fcport_s *fcport = ln->fcport;
2765
2766 if (fcport->bfa->fcs) {
2767 fcport->event_cbfn(fcport->event_cbarg, event);
2768 bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION);
2769 } else {
2770 ln->ln_event = event;
2771 bfa_cb_queue(fcport->bfa, &ln->ln_qe,
2772 __bfa_cb_fcport_event, ln);
2773 }
2774 }
2775
2776 #define FCPORT_STATS_DMA_SZ (BFA_ROUNDUP(sizeof(union bfa_fcport_stats_u), \
2777 BFA_CACHELINE_SZ))
2778
2779 static void
2780 bfa_fcport_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
2781 u32 *dm_len)
2782 {
2783 *dm_len += FCPORT_STATS_DMA_SZ;
2784 }
2785
2786 static void
2787 bfa_fcport_qresume(void *cbarg)
2788 {
2789 struct bfa_fcport_s *fcport = cbarg;
2790
2791 bfa_sm_send_event(fcport, BFA_FCPORT_SM_QRESUME);
2792 }
2793
2794 static void
2795 bfa_fcport_mem_claim(struct bfa_fcport_s *fcport, struct bfa_meminfo_s *meminfo)
2796 {
2797 u8 *dm_kva;
2798 u64 dm_pa;
2799
2800 dm_kva = bfa_meminfo_dma_virt(meminfo);
2801 dm_pa = bfa_meminfo_dma_phys(meminfo);
2802
2803 fcport->stats_kva = dm_kva;
2804 fcport->stats_pa = dm_pa;
2805 fcport->stats = (union bfa_fcport_stats_u *) dm_kva;
2806
2807 dm_kva += FCPORT_STATS_DMA_SZ;
2808 dm_pa += FCPORT_STATS_DMA_SZ;
2809
2810 bfa_meminfo_dma_virt(meminfo) = dm_kva;
2811 bfa_meminfo_dma_phys(meminfo) = dm_pa;
2812 }
2813
2814 /*
2815 * Memory initialization.
2816 */
2817 static void
2818 bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
2819 struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
2820 {
2821 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
2822 struct bfa_port_cfg_s *port_cfg = &fcport->cfg;
2823 struct bfa_fcport_ln_s *ln = &fcport->ln;
2824 struct timeval tv;
2825
2826 memset(fcport, 0, sizeof(struct bfa_fcport_s));
2827 fcport->bfa = bfa;
2828 ln->fcport = fcport;
2829
2830 bfa_fcport_mem_claim(fcport, meminfo);
2831
2832 bfa_sm_set_state(fcport, bfa_fcport_sm_uninit);
2833 bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn);
2834
2835 /*
2836 * initialize time stamp for stats reset
2837 */
2838 do_gettimeofday(&tv);
2839 fcport->stats_reset_time = tv.tv_sec;
2840
2841 /*
2842 * initialize and set default configuration
2843 */
2844 port_cfg->topology = BFA_PORT_TOPOLOGY_P2P;
2845 port_cfg->speed = BFA_PORT_SPEED_AUTO;
2846 port_cfg->trunked = BFA_FALSE;
2847 port_cfg->maxfrsize = 0;
2848
2849 port_cfg->trl_def_speed = BFA_PORT_SPEED_1GBPS;
2850
2851 bfa_reqq_winit(&fcport->reqq_wait, bfa_fcport_qresume, fcport);
2852 }
2853
2854 static void
2855 bfa_fcport_detach(struct bfa_s *bfa)
2856 {
2857 }
2858
2859 /*
2860 * Called when IOC is ready.
2861 */
2862 static void
2863 bfa_fcport_start(struct bfa_s *bfa)
2864 {
2865 bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_START);
2866 }
2867
2868 /*
2869 * Called before IOC is stopped.
2870 */
2871 static void
2872 bfa_fcport_stop(struct bfa_s *bfa)
2873 {
2874 bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_STOP);
2875 bfa_trunk_iocdisable(bfa);
2876 }
2877
2878 /*
2879 * Called when IOC failure is detected.
2880 */
2881 static void
2882 bfa_fcport_iocdisable(struct bfa_s *bfa)
2883 {
2884 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
2885
2886 bfa_sm_send_event(fcport, BFA_FCPORT_SM_HWFAIL);
2887 bfa_trunk_iocdisable(bfa);
2888 }
2889
2890 static void
2891 bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport)
2892 {
2893 struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event;
2894 struct bfa_fcport_trunk_s *trunk = &fcport->trunk;
2895
2896 fcport->speed = pevent->link_state.speed;
2897 fcport->topology = pevent->link_state.topology;
2898
2899 if (fcport->topology == BFA_PORT_TOPOLOGY_LOOP)
2900 fcport->myalpa = 0;
2901
2902 /* QoS Details */
2903 fcport->qos_attr = pevent->link_state.qos_attr;
2904 fcport->qos_vc_attr = pevent->link_state.vc_fcf.qos_vc_attr;
2905
2906 /*
2907 * update trunk state if applicable
2908 */
2909 if (!fcport->cfg.trunked)
2910 trunk->attr.state = BFA_TRUNK_DISABLED;
2911
2912 /* update FCoE specific */
2913 fcport->fcoe_vlan = be16_to_cpu(pevent->link_state.vc_fcf.fcf.vlan);
2914
2915 bfa_trc(fcport->bfa, fcport->speed);
2916 bfa_trc(fcport->bfa, fcport->topology);
2917 }
2918
2919 static void
2920 bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport)
2921 {
2922 fcport->speed = BFA_PORT_SPEED_UNKNOWN;
2923 fcport->topology = BFA_PORT_TOPOLOGY_NONE;
2924 }
2925
2926 /*
2927 * Send port enable message to firmware.
2928 */
2929 static bfa_boolean_t
2930 bfa_fcport_send_enable(struct bfa_fcport_s *fcport)
2931 {
2932 struct bfi_fcport_enable_req_s *m;
2933
2934 /*
2935 * Increment message tag before queue check, so that responses to old
2936 * requests are discarded.
2937 */
2938 fcport->msgtag++;
2939
2940 /*
2941 * check for room in queue to send request now
2942 */
2943 m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
2944 if (!m) {
2945 bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
2946 &fcport->reqq_wait);
2947 return BFA_FALSE;
2948 }
2949
2950 bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_ENABLE_REQ,
2951 bfa_lpuid(fcport->bfa));
2952 m->nwwn = fcport->nwwn;
2953 m->pwwn = fcport->pwwn;
2954 m->port_cfg = fcport->cfg;
2955 m->msgtag = fcport->msgtag;
2956 m->port_cfg.maxfrsize = cpu_to_be16(fcport->cfg.maxfrsize);
2957 m->use_flash_cfg = fcport->use_flash_cfg;
2958 bfa_dma_be_addr_set(m->stats_dma_addr, fcport->stats_pa);
2959 bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_lo);
2960 bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_hi);
2961
2962 /*
2963 * queue I/O message to firmware
2964 */
2965 bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
2966 return BFA_TRUE;
2967 }
2968
2969 /*
2970 * Send port disable message to firmware.
2971 */
2972 static bfa_boolean_t
2973 bfa_fcport_send_disable(struct bfa_fcport_s *fcport)
2974 {
2975 struct bfi_fcport_req_s *m;
2976
2977 /*
2978 * Increment message tag before queue check, so that responses to old
2979 * requests are discarded.
2980 */
2981 fcport->msgtag++;
2982
2983 /*
2984 * check for room in queue to send request now
2985 */
2986 m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
2987 if (!m) {
2988 bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
2989 &fcport->reqq_wait);
2990 return BFA_FALSE;
2991 }
2992
2993 bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_DISABLE_REQ,
2994 bfa_lpuid(fcport->bfa));
2995 m->msgtag = fcport->msgtag;
2996
2997 /*
2998 * queue I/O message to firmware
2999 */
3000 bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
3001
3002 return BFA_TRUE;
3003 }
3004
3005 static void
3006 bfa_fcport_set_wwns(struct bfa_fcport_s *fcport)
3007 {
3008 fcport->pwwn = fcport->bfa->ioc.attr->pwwn;
3009 fcport->nwwn = fcport->bfa->ioc.attr->nwwn;
3010
3011 bfa_trc(fcport->bfa, fcport->pwwn);
3012 bfa_trc(fcport->bfa, fcport->nwwn);
3013 }
3014
3015 static void
3016 bfa_fcport_send_txcredit(void *port_cbarg)
3017 {
3018
3019 struct bfa_fcport_s *fcport = port_cbarg;
3020 struct bfi_fcport_set_svc_params_req_s *m;
3021
3022 /*
3023 * check for room in queue to send request now
3024 */
3025 m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
3026 if (!m) {
3027 bfa_trc(fcport->bfa, fcport->cfg.tx_bbcredit);
3028 return;
3029 }
3030
3031 bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ,
3032 bfa_lpuid(fcport->bfa));
3033 m->tx_bbcredit = cpu_to_be16((u16)fcport->cfg.tx_bbcredit);
3034
3035 /*
3036 * queue I/O message to firmware
3037 */
3038 bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
3039 }
3040
3041 static void
3042 bfa_fcport_qos_stats_swap(struct bfa_qos_stats_s *d,
3043 struct bfa_qos_stats_s *s)
3044 {
3045 u32 *dip = (u32 *) d;
3046 __be32 *sip = (__be32 *) s;
3047 int i;
3048
3049 /* Now swap the 32 bit fields */
3050 for (i = 0; i < (sizeof(struct bfa_qos_stats_s)/sizeof(u32)); ++i)
3051 dip[i] = be32_to_cpu(sip[i]);
3052 }
3053
3054 static void
3055 bfa_fcport_fcoe_stats_swap(struct bfa_fcoe_stats_s *d,
3056 struct bfa_fcoe_stats_s *s)
3057 {
3058 u32 *dip = (u32 *) d;
3059 __be32 *sip = (__be32 *) s;
3060 int i;
3061
3062 for (i = 0; i < ((sizeof(struct bfa_fcoe_stats_s))/sizeof(u32));
3063 i = i + 2) {
3064 #ifdef __BIG_ENDIAN
3065 dip[i] = be32_to_cpu(sip[i]);
3066 dip[i + 1] = be32_to_cpu(sip[i + 1]);
3067 #else
3068 dip[i] = be32_to_cpu(sip[i + 1]);
3069 dip[i + 1] = be32_to_cpu(sip[i]);
3070 #endif
3071 }
3072 }
3073
3074 static void
3075 __bfa_cb_fcport_stats_get(void *cbarg, bfa_boolean_t complete)
3076 {
3077 struct bfa_fcport_s *fcport = cbarg;
3078
3079 if (complete) {
3080 if (fcport->stats_status == BFA_STATUS_OK) {
3081 struct timeval tv;
3082
3083 /* Swap FC QoS or FCoE stats */
3084 if (bfa_ioc_get_fcmode(&fcport->bfa->ioc)) {
3085 bfa_fcport_qos_stats_swap(
3086 &fcport->stats_ret->fcqos,
3087 &fcport->stats->fcqos);
3088 } else {
3089 bfa_fcport_fcoe_stats_swap(
3090 &fcport->stats_ret->fcoe,
3091 &fcport->stats->fcoe);
3092
3093 do_gettimeofday(&tv);
3094 fcport->stats_ret->fcoe.secs_reset =
3095 tv.tv_sec - fcport->stats_reset_time;
3096 }
3097 }
3098 fcport->stats_cbfn(fcport->stats_cbarg, fcport->stats_status);
3099 } else {
3100 fcport->stats_busy = BFA_FALSE;
3101 fcport->stats_status = BFA_STATUS_OK;
3102 }
3103 }
3104
3105 static void
3106 bfa_fcport_stats_get_timeout(void *cbarg)
3107 {
3108 struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
3109
3110 bfa_trc(fcport->bfa, fcport->stats_qfull);
3111
3112 if (fcport->stats_qfull) {
3113 bfa_reqq_wcancel(&fcport->stats_reqq_wait);
3114 fcport->stats_qfull = BFA_FALSE;
3115 }
3116
3117 fcport->stats_status = BFA_STATUS_ETIMER;
3118 bfa_cb_queue(fcport->bfa, &fcport->hcb_qe, __bfa_cb_fcport_stats_get,
3119 fcport);
3120 }
3121
3122 static void
3123 bfa_fcport_send_stats_get(void *cbarg)
3124 {
3125 struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
3126 struct bfi_fcport_req_s *msg;
3127
3128 msg = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
3129
3130 if (!msg) {
3131 fcport->stats_qfull = BFA_TRUE;
3132 bfa_reqq_winit(&fcport->stats_reqq_wait,
3133 bfa_fcport_send_stats_get, fcport);
3134 bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
3135 &fcport->stats_reqq_wait);
3136 return;
3137 }
3138 fcport->stats_qfull = BFA_FALSE;
3139
3140 memset(msg, 0, sizeof(struct bfi_fcport_req_s));
3141 bfi_h2i_set(msg->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_STATS_GET_REQ,
3142 bfa_lpuid(fcport->bfa));
3143 bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
3144 }
3145
3146 static void
3147 __bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete)
3148 {
3149 struct bfa_fcport_s *fcport = cbarg;
3150
3151 if (complete) {
3152 struct timeval tv;
3153
3154 /*
3155 * re-initialize time stamp for stats reset
3156 */
3157 do_gettimeofday(&tv);
3158 fcport->stats_reset_time = tv.tv_sec;
3159
3160 fcport->stats_cbfn(fcport->stats_cbarg, fcport->stats_status);
3161 } else {
3162 fcport->stats_busy = BFA_FALSE;
3163 fcport->stats_status = BFA_STATUS_OK;
3164 }
3165 }
3166
3167 static void
3168 bfa_fcport_stats_clr_timeout(void *cbarg)
3169 {
3170 struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
3171
3172 bfa_trc(fcport->bfa, fcport->stats_qfull);
3173
3174 if (fcport->stats_qfull) {
3175 bfa_reqq_wcancel(&fcport->stats_reqq_wait);
3176 fcport->stats_qfull = BFA_FALSE;
3177 }
3178
3179 fcport->stats_status = BFA_STATUS_ETIMER;
3180 bfa_cb_queue(fcport->bfa, &fcport->hcb_qe,
3181 __bfa_cb_fcport_stats_clr, fcport);
3182 }
3183
3184 static void
3185 bfa_fcport_send_stats_clear(void *cbarg)
3186 {
3187 struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
3188 struct bfi_fcport_req_s *msg;
3189
3190 msg = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
3191
3192 if (!msg) {
3193 fcport->stats_qfull = BFA_TRUE;
3194 bfa_reqq_winit(&fcport->stats_reqq_wait,
3195 bfa_fcport_send_stats_clear, fcport);
3196 bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
3197 &fcport->stats_reqq_wait);
3198 return;
3199 }
3200 fcport->stats_qfull = BFA_FALSE;
3201
3202 memset(msg, 0, sizeof(struct bfi_fcport_req_s));
3203 bfi_h2i_set(msg->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_STATS_CLEAR_REQ,
3204 bfa_lpuid(fcport->bfa));
3205 bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
3206 }
3207
3208 /*
3209 * Handle trunk SCN event from firmware.
3210 */
3211 static void
3212 bfa_trunk_scn(struct bfa_fcport_s *fcport, struct bfi_fcport_trunk_scn_s *scn)
3213 {
3214 struct bfa_fcport_trunk_s *trunk = &fcport->trunk;
3215 struct bfi_fcport_trunk_link_s *tlink;
3216 struct bfa_trunk_link_attr_s *lattr;
3217 enum bfa_trunk_state state_prev;
3218 int i;
3219 int link_bm = 0;
3220
3221 bfa_trc(fcport->bfa, fcport->cfg.trunked);
3222 WARN_ON(scn->trunk_state != BFA_TRUNK_ONLINE &&
3223 scn->trunk_state != BFA_TRUNK_OFFLINE);
3224
3225 bfa_trc(fcport->bfa, trunk->attr.state);
3226 bfa_trc(fcport->bfa, scn->trunk_state);
3227 bfa_trc(fcport->bfa, scn->trunk_speed);
3228
3229 /*
3230 * Save off new state for trunk attribute query
3231 */
3232 state_prev = trunk->attr.state;
3233 if (fcport->cfg.trunked && (trunk->attr.state != BFA_TRUNK_DISABLED))
3234 trunk->attr.state = scn->trunk_state;
3235 trunk->attr.speed = scn->trunk_speed;
3236 for (i = 0; i < BFA_TRUNK_MAX_PORTS; i++) {
3237 lattr = &trunk->attr.link_attr[i];
3238 tlink = &scn->tlink[i];
3239
3240 lattr->link_state = tlink->state;
3241 lattr->trunk_wwn = tlink->trunk_wwn;
3242 lattr->fctl = tlink->fctl;
3243 lattr->speed = tlink->speed;
3244 lattr->deskew = be32_to_cpu(tlink->deskew);
3245
3246 if (tlink->state == BFA_TRUNK_LINK_STATE_UP) {
3247 fcport->speed = tlink->speed;
3248 fcport->topology = BFA_PORT_TOPOLOGY_P2P;
3249 link_bm |= 1 << i;
3250 }
3251
3252 bfa_trc(fcport->bfa, lattr->link_state);
3253 bfa_trc(fcport->bfa, lattr->trunk_wwn);
3254 bfa_trc(fcport->bfa, lattr->fctl);
3255 bfa_trc(fcport->bfa, lattr->speed);
3256 bfa_trc(fcport->bfa, lattr->deskew);
3257 }
3258
3259 switch (link_bm) {
3260 case 3:
3261 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
3262 BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(0,1)");
3263 break;
3264 case 2:
3265 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
3266 BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(-,1)");
3267 break;
3268 case 1:
3269 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
3270 BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(0,-)");
3271 break;
3272 default:
3273 bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
3274 BFA_PL_EID_TRUNK_SCN, 0, "Trunk down");
3275 }
3276
3277 /*
3278 * Notify upper layers if trunk state changed.
3279 */
3280 if ((state_prev != trunk->attr.state) ||
3281 (scn->trunk_state == BFA_TRUNK_OFFLINE)) {
3282 bfa_fcport_scn(fcport, (scn->trunk_state == BFA_TRUNK_ONLINE) ?
3283 BFA_PORT_LINKUP : BFA_PORT_LINKDOWN, BFA_TRUE);
3284 }
3285 }
3286
3287 static void
3288 bfa_trunk_iocdisable(struct bfa_s *bfa)
3289 {
3290 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3291 int i = 0;
3292
3293 /*
3294 * In trunked mode, notify upper layers that link is down
3295 */
3296 if (fcport->cfg.trunked) {
3297 if (fcport->trunk.attr.state == BFA_TRUNK_ONLINE)
3298 bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_TRUE);
3299
3300 fcport->trunk.attr.state = BFA_TRUNK_OFFLINE;
3301 fcport->trunk.attr.speed = BFA_PORT_SPEED_UNKNOWN;
3302 for (i = 0; i < BFA_TRUNK_MAX_PORTS; i++) {
3303 fcport->trunk.attr.link_attr[i].trunk_wwn = 0;
3304 fcport->trunk.attr.link_attr[i].fctl =
3305 BFA_TRUNK_LINK_FCTL_NORMAL;
3306 fcport->trunk.attr.link_attr[i].link_state =
3307 BFA_TRUNK_LINK_STATE_DN_LINKDN;
3308 fcport->trunk.attr.link_attr[i].speed =
3309 BFA_PORT_SPEED_UNKNOWN;
3310 fcport->trunk.attr.link_attr[i].deskew = 0;
3311 }
3312 }
3313 }
3314
3315 /*
3316 * Called to initialize port attributes
3317 */
3318 void
3319 bfa_fcport_init(struct bfa_s *bfa)
3320 {
3321 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3322
3323 /*
3324 * Initialize port attributes from IOC hardware data.
3325 */
3326 bfa_fcport_set_wwns(fcport);
3327 if (fcport->cfg.maxfrsize == 0)
3328 fcport->cfg.maxfrsize = bfa_ioc_maxfrsize(&bfa->ioc);
3329 fcport->cfg.rx_bbcredit = bfa_ioc_rx_bbcredit(&bfa->ioc);
3330 fcport->speed_sup = bfa_ioc_speed_sup(&bfa->ioc);
3331
3332 WARN_ON(!fcport->cfg.maxfrsize);
3333 WARN_ON(!fcport->cfg.rx_bbcredit);
3334 WARN_ON(!fcport->speed_sup);
3335 }
3336
3337 /*
3338 * Firmware message handler.
3339 */
3340 void
3341 bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
3342 {
3343 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3344 union bfi_fcport_i2h_msg_u i2hmsg;
3345
3346 i2hmsg.msg = msg;
3347 fcport->event_arg.i2hmsg = i2hmsg;
3348
3349 bfa_trc(bfa, msg->mhdr.msg_id);
3350 bfa_trc(bfa, bfa_sm_to_state(hal_port_sm_table, fcport->sm));
3351
3352 switch (msg->mhdr.msg_id) {
3353 case BFI_FCPORT_I2H_ENABLE_RSP:
3354 if (fcport->msgtag == i2hmsg.penable_rsp->msgtag) {
3355
3356 if (fcport->use_flash_cfg) {
3357 fcport->cfg = i2hmsg.penable_rsp->port_cfg;
3358 fcport->cfg.maxfrsize =
3359 cpu_to_be16(fcport->cfg.maxfrsize);
3360 fcport->cfg.path_tov =
3361 cpu_to_be16(fcport->cfg.path_tov);
3362 fcport->cfg.q_depth =
3363 cpu_to_be16(fcport->cfg.q_depth);
3364
3365 if (fcport->cfg.trunked)
3366 fcport->trunk.attr.state =
3367 BFA_TRUNK_OFFLINE;
3368 else
3369 fcport->trunk.attr.state =
3370 BFA_TRUNK_DISABLED;
3371 fcport->use_flash_cfg = BFA_FALSE;
3372 }
3373
3374 bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP);
3375 }
3376 break;
3377
3378 case BFI_FCPORT_I2H_DISABLE_RSP:
3379 if (fcport->msgtag == i2hmsg.penable_rsp->msgtag)
3380 bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP);
3381 break;
3382
3383 case BFI_FCPORT_I2H_EVENT:
3384 if (i2hmsg.event->link_state.linkstate == BFA_PORT_LINKUP)
3385 bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKUP);
3386 else
3387 bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKDOWN);
3388 break;
3389
3390 case BFI_FCPORT_I2H_TRUNK_SCN:
3391 bfa_trunk_scn(fcport, i2hmsg.trunk_scn);
3392 break;
3393
3394 case BFI_FCPORT_I2H_STATS_GET_RSP:
3395 /*
3396 * check for timer pop before processing the rsp
3397 */
3398 if (fcport->stats_busy == BFA_FALSE ||
3399 fcport->stats_status == BFA_STATUS_ETIMER)
3400 break;
3401
3402 bfa_timer_stop(&fcport->timer);
3403 fcport->stats_status = i2hmsg.pstatsget_rsp->status;
3404 bfa_cb_queue(fcport->bfa, &fcport->hcb_qe,
3405 __bfa_cb_fcport_stats_get, fcport);
3406 break;
3407
3408 case BFI_FCPORT_I2H_STATS_CLEAR_RSP:
3409 /*
3410 * check for timer pop before processing the rsp
3411 */
3412 if (fcport->stats_busy == BFA_FALSE ||
3413 fcport->stats_status == BFA_STATUS_ETIMER)
3414 break;
3415
3416 bfa_timer_stop(&fcport->timer);
3417 fcport->stats_status = BFA_STATUS_OK;
3418 bfa_cb_queue(fcport->bfa, &fcport->hcb_qe,
3419 __bfa_cb_fcport_stats_clr, fcport);
3420 break;
3421
3422 case BFI_FCPORT_I2H_ENABLE_AEN:
3423 bfa_sm_send_event(fcport, BFA_FCPORT_SM_ENABLE);
3424 break;
3425
3426 case BFI_FCPORT_I2H_DISABLE_AEN:
3427 bfa_sm_send_event(fcport, BFA_FCPORT_SM_DISABLE);
3428 break;
3429
3430 default:
3431 WARN_ON(1);
3432 break;
3433 }
3434 }
3435
3436 /*
3437 * Registered callback for port events.
3438 */
3439 void
3440 bfa_fcport_event_register(struct bfa_s *bfa,
3441 void (*cbfn) (void *cbarg,
3442 enum bfa_port_linkstate event),
3443 void *cbarg)
3444 {
3445 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3446
3447 fcport->event_cbfn = cbfn;
3448 fcport->event_cbarg = cbarg;
3449 }
3450
3451 bfa_status_t
3452 bfa_fcport_enable(struct bfa_s *bfa)
3453 {
3454 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3455
3456 if (bfa_ioc_is_disabled(&bfa->ioc))
3457 return BFA_STATUS_IOC_DISABLED;
3458
3459 if (fcport->diag_busy)
3460 return BFA_STATUS_DIAG_BUSY;
3461
3462 bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_ENABLE);
3463 return BFA_STATUS_OK;
3464 }
3465
3466 bfa_status_t
3467 bfa_fcport_disable(struct bfa_s *bfa)
3468 {
3469
3470 if (bfa_ioc_is_disabled(&bfa->ioc))
3471 return BFA_STATUS_IOC_DISABLED;
3472
3473 bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_DISABLE);
3474 return BFA_STATUS_OK;
3475 }
3476
3477 /*
3478 * Configure port speed.
3479 */
3480 bfa_status_t
3481 bfa_fcport_cfg_speed(struct bfa_s *bfa, enum bfa_port_speed speed)
3482 {
3483 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3484
3485 bfa_trc(bfa, speed);
3486
3487 if (fcport->cfg.trunked == BFA_TRUE)
3488 return BFA_STATUS_TRUNK_ENABLED;
3489 if ((speed != BFA_PORT_SPEED_AUTO) && (speed > fcport->speed_sup)) {
3490 bfa_trc(bfa, fcport->speed_sup);
3491 return BFA_STATUS_UNSUPP_SPEED;
3492 }
3493
3494 fcport->cfg.speed = speed;
3495
3496 return BFA_STATUS_OK;
3497 }
3498
3499 /*
3500 * Get current speed.
3501 */
3502 enum bfa_port_speed
3503 bfa_fcport_get_speed(struct bfa_s *bfa)
3504 {
3505 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3506
3507 return fcport->speed;
3508 }
3509
3510 /*
3511 * Configure port topology.
3512 */
3513 bfa_status_t
3514 bfa_fcport_cfg_topology(struct bfa_s *bfa, enum bfa_port_topology topology)
3515 {
3516 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3517
3518 bfa_trc(bfa, topology);
3519 bfa_trc(bfa, fcport->cfg.topology);
3520
3521 switch (topology) {
3522 case BFA_PORT_TOPOLOGY_P2P:
3523 case BFA_PORT_TOPOLOGY_LOOP:
3524 case BFA_PORT_TOPOLOGY_AUTO:
3525 break;
3526
3527 default:
3528 return BFA_STATUS_EINVAL;
3529 }
3530
3531 fcport->cfg.topology = topology;
3532 return BFA_STATUS_OK;
3533 }
3534
3535 /*
3536 * Get current topology.
3537 */
3538 enum bfa_port_topology
3539 bfa_fcport_get_topology(struct bfa_s *bfa)
3540 {
3541 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3542
3543 return fcport->topology;
3544 }
3545
3546 bfa_status_t
3547 bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa)
3548 {
3549 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3550
3551 bfa_trc(bfa, alpa);
3552 bfa_trc(bfa, fcport->cfg.cfg_hardalpa);
3553 bfa_trc(bfa, fcport->cfg.hardalpa);
3554
3555 fcport->cfg.cfg_hardalpa = BFA_TRUE;
3556 fcport->cfg.hardalpa = alpa;
3557
3558 return BFA_STATUS_OK;
3559 }
3560
3561 bfa_status_t
3562 bfa_fcport_clr_hardalpa(struct bfa_s *bfa)
3563 {
3564 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3565
3566 bfa_trc(bfa, fcport->cfg.cfg_hardalpa);
3567 bfa_trc(bfa, fcport->cfg.hardalpa);
3568
3569 fcport->cfg.cfg_hardalpa = BFA_FALSE;
3570 return BFA_STATUS_OK;
3571 }
3572
3573 bfa_boolean_t
3574 bfa_fcport_get_hardalpa(struct bfa_s *bfa, u8 *alpa)
3575 {
3576 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3577
3578 *alpa = fcport->cfg.hardalpa;
3579 return fcport->cfg.cfg_hardalpa;
3580 }
3581
3582 u8
3583 bfa_fcport_get_myalpa(struct bfa_s *bfa)
3584 {
3585 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3586
3587 return fcport->myalpa;
3588 }
3589
3590 bfa_status_t
3591 bfa_fcport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxfrsize)
3592 {
3593 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3594
3595 bfa_trc(bfa, maxfrsize);
3596 bfa_trc(bfa, fcport->cfg.maxfrsize);
3597
3598 /* with in range */
3599 if ((maxfrsize > FC_MAX_PDUSZ) || (maxfrsize < FC_MIN_PDUSZ))
3600 return BFA_STATUS_INVLD_DFSZ;
3601
3602 /* power of 2, if not the max frame size of 2112 */
3603 if ((maxfrsize != FC_MAX_PDUSZ) && (maxfrsize & (maxfrsize - 1)))
3604 return BFA_STATUS_INVLD_DFSZ;
3605
3606 fcport->cfg.maxfrsize = maxfrsize;
3607 return BFA_STATUS_OK;
3608 }
3609
3610 u16
3611 bfa_fcport_get_maxfrsize(struct bfa_s *bfa)
3612 {
3613 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3614
3615 return fcport->cfg.maxfrsize;
3616 }
3617
3618 u8
3619 bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa)
3620 {
3621 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3622
3623 return fcport->cfg.rx_bbcredit;
3624 }
3625
3626 void
3627 bfa_fcport_set_tx_bbcredit(struct bfa_s *bfa, u16 tx_bbcredit)
3628 {
3629 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3630
3631 fcport->cfg.tx_bbcredit = (u8)tx_bbcredit;
3632 bfa_fcport_send_txcredit(fcport);
3633 }
3634
3635 /*
3636 * Get port attributes.
3637 */
3638
3639 wwn_t
3640 bfa_fcport_get_wwn(struct bfa_s *bfa, bfa_boolean_t node)
3641 {
3642 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3643 if (node)
3644 return fcport->nwwn;
3645 else
3646 return fcport->pwwn;
3647 }
3648
3649 void
3650 bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_port_attr_s *attr)
3651 {
3652 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3653
3654 memset(attr, 0, sizeof(struct bfa_port_attr_s));
3655
3656 attr->nwwn = fcport->nwwn;
3657 attr->pwwn = fcport->pwwn;
3658
3659 attr->factorypwwn = bfa->ioc.attr->mfg_pwwn;
3660 attr->factorynwwn = bfa->ioc.attr->mfg_nwwn;
3661
3662 memcpy(&attr->pport_cfg, &fcport->cfg,
3663 sizeof(struct bfa_port_cfg_s));
3664 /* speed attributes */
3665 attr->pport_cfg.speed = fcport->cfg.speed;
3666 attr->speed_supported = fcport->speed_sup;
3667 attr->speed = fcport->speed;
3668 attr->cos_supported = FC_CLASS_3;
3669
3670 /* topology attributes */
3671 attr->pport_cfg.topology = fcport->cfg.topology;
3672 attr->topology = fcport->topology;
3673 attr->pport_cfg.trunked = fcport->cfg.trunked;
3674
3675 /* beacon attributes */
3676 attr->beacon = fcport->beacon;
3677 attr->link_e2e_beacon = fcport->link_e2e_beacon;
3678 attr->plog_enabled = (bfa_boolean_t)fcport->bfa->plog->plog_enabled;
3679 attr->io_profile = bfa_fcpim_get_io_profile(fcport->bfa);
3680
3681 attr->pport_cfg.path_tov = bfa_fcpim_path_tov_get(bfa);
3682 attr->pport_cfg.q_depth = bfa_fcpim_qdepth_get(bfa);
3683 attr->port_state = bfa_sm_to_state(hal_port_sm_table, fcport->sm);
3684 if (bfa_ioc_is_disabled(&fcport->bfa->ioc))
3685 attr->port_state = BFA_PORT_ST_IOCDIS;
3686 else if (bfa_ioc_fw_mismatch(&fcport->bfa->ioc))
3687 attr->port_state = BFA_PORT_ST_FWMISMATCH;
3688
3689 /* FCoE vlan */
3690 attr->fcoe_vlan = fcport->fcoe_vlan;
3691 }
3692
3693 #define BFA_FCPORT_STATS_TOV 1000
3694
3695 /*
3696 * Fetch port statistics (FCQoS or FCoE).
3697 */
3698 bfa_status_t
3699 bfa_fcport_get_stats(struct bfa_s *bfa, union bfa_fcport_stats_u *stats,
3700 bfa_cb_port_t cbfn, void *cbarg)
3701 {
3702 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3703
3704 if (fcport->stats_busy) {
3705 bfa_trc(bfa, fcport->stats_busy);
3706 return BFA_STATUS_DEVBUSY;
3707 }
3708
3709 fcport->stats_busy = BFA_TRUE;
3710 fcport->stats_ret = stats;
3711 fcport->stats_cbfn = cbfn;
3712 fcport->stats_cbarg = cbarg;
3713
3714 bfa_fcport_send_stats_get(fcport);
3715
3716 bfa_timer_start(bfa, &fcport->timer, bfa_fcport_stats_get_timeout,
3717 fcport, BFA_FCPORT_STATS_TOV);
3718 return BFA_STATUS_OK;
3719 }
3720
3721 /*
3722 * Reset port statistics (FCQoS or FCoE).
3723 */
3724 bfa_status_t
3725 bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_port_t cbfn, void *cbarg)
3726 {
3727 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3728
3729 if (fcport->stats_busy) {
3730 bfa_trc(bfa, fcport->stats_busy);
3731 return BFA_STATUS_DEVBUSY;
3732 }
3733
3734 fcport->stats_busy = BFA_TRUE;
3735 fcport->stats_cbfn = cbfn;
3736 fcport->stats_cbarg = cbarg;
3737
3738 bfa_fcport_send_stats_clear(fcport);
3739
3740 bfa_timer_start(bfa, &fcport->timer, bfa_fcport_stats_clr_timeout,
3741 fcport, BFA_FCPORT_STATS_TOV);
3742 return BFA_STATUS_OK;
3743 }
3744
3745
3746 /*
3747 * Fetch port attributes.
3748 */
3749 bfa_boolean_t
3750 bfa_fcport_is_disabled(struct bfa_s *bfa)
3751 {
3752 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3753
3754 return bfa_sm_to_state(hal_port_sm_table, fcport->sm) ==
3755 BFA_PORT_ST_DISABLED;
3756
3757 }
3758
3759 bfa_boolean_t
3760 bfa_fcport_is_ratelim(struct bfa_s *bfa)
3761 {
3762 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3763
3764 return fcport->cfg.ratelimit ? BFA_TRUE : BFA_FALSE;
3765
3766 }
3767
3768 /*
3769 * Get default minimum ratelim speed
3770 */
3771 enum bfa_port_speed
3772 bfa_fcport_get_ratelim_speed(struct bfa_s *bfa)
3773 {
3774 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3775
3776 bfa_trc(bfa, fcport->cfg.trl_def_speed);
3777 return fcport->cfg.trl_def_speed;
3778
3779 }
3780
3781 bfa_boolean_t
3782 bfa_fcport_is_linkup(struct bfa_s *bfa)
3783 {
3784 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3785
3786 return (!fcport->cfg.trunked &&
3787 bfa_sm_cmp_state(fcport, bfa_fcport_sm_linkup)) ||
3788 (fcport->cfg.trunked &&
3789 fcport->trunk.attr.state == BFA_TRUNK_ONLINE);
3790 }
3791
3792 bfa_boolean_t
3793 bfa_fcport_is_qos_enabled(struct bfa_s *bfa)
3794 {
3795 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
3796
3797 return fcport->cfg.qos_enabled;
3798 }
3799
3800 /*
3801 * Rport State machine functions
3802 */
3803 /*
3804 * Beginning state, only online event expected.
3805 */
3806 static void
3807 bfa_rport_sm_uninit(struct bfa_rport_s *rp, enum bfa_rport_event event)
3808 {
3809 bfa_trc(rp->bfa, rp->rport_tag);
3810 bfa_trc(rp->bfa, event);
3811
3812 switch (event) {
3813 case BFA_RPORT_SM_CREATE:
3814 bfa_stats(rp, sm_un_cr);
3815 bfa_sm_set_state(rp, bfa_rport_sm_created);
3816 break;
3817
3818 default:
3819 bfa_stats(rp, sm_un_unexp);
3820 bfa_sm_fault(rp->bfa, event);
3821 }
3822 }
3823
3824 static void
3825 bfa_rport_sm_created(struct bfa_rport_s *rp, enum bfa_rport_event event)
3826 {
3827 bfa_trc(rp->bfa, rp->rport_tag);
3828 bfa_trc(rp->bfa, event);
3829
3830 switch (event) {
3831 case BFA_RPORT_SM_ONLINE:
3832 bfa_stats(rp, sm_cr_on);
3833 if (bfa_rport_send_fwcreate(rp))
3834 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
3835 else
3836 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull);
3837 break;
3838
3839 case BFA_RPORT_SM_DELETE:
3840 bfa_stats(rp, sm_cr_del);
3841 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
3842 bfa_rport_free(rp);
3843 break;
3844
3845 case BFA_RPORT_SM_HWFAIL:
3846 bfa_stats(rp, sm_cr_hwf);
3847 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
3848 break;
3849
3850 default:
3851 bfa_stats(rp, sm_cr_unexp);
3852 bfa_sm_fault(rp->bfa, event);
3853 }
3854 }
3855
3856 /*
3857 * Waiting for rport create response from firmware.
3858 */
3859 static void
3860 bfa_rport_sm_fwcreate(struct bfa_rport_s *rp, enum bfa_rport_event event)
3861 {
3862 bfa_trc(rp->bfa, rp->rport_tag);
3863 bfa_trc(rp->bfa, event);
3864
3865 switch (event) {
3866 case BFA_RPORT_SM_FWRSP:
3867 bfa_stats(rp, sm_fwc_rsp);
3868 bfa_sm_set_state(rp, bfa_rport_sm_online);
3869 bfa_rport_online_cb(rp);
3870 break;
3871
3872 case BFA_RPORT_SM_DELETE:
3873 bfa_stats(rp, sm_fwc_del);
3874 bfa_sm_set_state(rp, bfa_rport_sm_delete_pending);
3875 break;
3876
3877 case BFA_RPORT_SM_OFFLINE:
3878 bfa_stats(rp, sm_fwc_off);
3879 bfa_sm_set_state(rp, bfa_rport_sm_offline_pending);
3880 break;
3881
3882 case BFA_RPORT_SM_HWFAIL:
3883 bfa_stats(rp, sm_fwc_hwf);
3884 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
3885 break;
3886
3887 default:
3888 bfa_stats(rp, sm_fwc_unexp);
3889 bfa_sm_fault(rp->bfa, event);
3890 }
3891 }
3892
3893 /*
3894 * Request queue is full, awaiting queue resume to send create request.
3895 */
3896 static void
3897 bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event)
3898 {
3899 bfa_trc(rp->bfa, rp->rport_tag);
3900 bfa_trc(rp->bfa, event);
3901
3902 switch (event) {
3903 case BFA_RPORT_SM_QRESUME:
3904 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
3905 bfa_rport_send_fwcreate(rp);
3906 break;
3907
3908 case BFA_RPORT_SM_DELETE:
3909 bfa_stats(rp, sm_fwc_del);
3910 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
3911 bfa_reqq_wcancel(&rp->reqq_wait);
3912 bfa_rport_free(rp);
3913 break;
3914
3915 case BFA_RPORT_SM_OFFLINE:
3916 bfa_stats(rp, sm_fwc_off);
3917 bfa_sm_set_state(rp, bfa_rport_sm_offline);
3918 bfa_reqq_wcancel(&rp->reqq_wait);
3919 bfa_rport_offline_cb(rp);
3920 break;
3921
3922 case BFA_RPORT_SM_HWFAIL:
3923 bfa_stats(rp, sm_fwc_hwf);
3924 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
3925 bfa_reqq_wcancel(&rp->reqq_wait);
3926 break;
3927
3928 default:
3929 bfa_stats(rp, sm_fwc_unexp);
3930 bfa_sm_fault(rp->bfa, event);
3931 }
3932 }
3933
3934 /*
3935 * Online state - normal parking state.
3936 */
3937 static void
3938 bfa_rport_sm_online(struct bfa_rport_s *rp, enum bfa_rport_event event)
3939 {
3940 struct bfi_rport_qos_scn_s *qos_scn;
3941
3942 bfa_trc(rp->bfa, rp->rport_tag);
3943 bfa_trc(rp->bfa, event);
3944
3945 switch (event) {
3946 case BFA_RPORT_SM_OFFLINE:
3947 bfa_stats(rp, sm_on_off);
3948 if (bfa_rport_send_fwdelete(rp))
3949 bfa_sm_set_state(rp, bfa_rport_sm_fwdelete);
3950 else
3951 bfa_sm_set_state(rp, bfa_rport_sm_fwdelete_qfull);
3952 break;
3953
3954 case BFA_RPORT_SM_DELETE:
3955 bfa_stats(rp, sm_on_del);
3956 if (bfa_rport_send_fwdelete(rp))
3957 bfa_sm_set_state(rp, bfa_rport_sm_deleting);
3958 else
3959 bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull);
3960 break;
3961
3962 case BFA_RPORT_SM_HWFAIL:
3963 bfa_stats(rp, sm_on_hwf);
3964 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
3965 break;
3966
3967 case BFA_RPORT_SM_SET_SPEED:
3968 bfa_rport_send_fwspeed(rp);
3969 break;
3970
3971 case BFA_RPORT_SM_QOS_SCN:
3972 qos_scn = (struct bfi_rport_qos_scn_s *) rp->event_arg.fw_msg;
3973 rp->qos_attr = qos_scn->new_qos_attr;
3974 bfa_trc(rp->bfa, qos_scn->old_qos_attr.qos_flow_id);
3975 bfa_trc(rp->bfa, qos_scn->new_qos_attr.qos_flow_id);
3976 bfa_trc(rp->bfa, qos_scn->old_qos_attr.qos_priority);
3977 bfa_trc(rp->bfa, qos_scn->new_qos_attr.qos_priority);
3978
3979 qos_scn->old_qos_attr.qos_flow_id =
3980 be32_to_cpu(qos_scn->old_qos_attr.qos_flow_id);
3981 qos_scn->new_qos_attr.qos_flow_id =
3982 be32_to_cpu(qos_scn->new_qos_attr.qos_flow_id);
3983
3984 if (qos_scn->old_qos_attr.qos_flow_id !=
3985 qos_scn->new_qos_attr.qos_flow_id)
3986 bfa_cb_rport_qos_scn_flowid(rp->rport_drv,
3987 qos_scn->old_qos_attr,
3988 qos_scn->new_qos_attr);
3989 if (qos_scn->old_qos_attr.qos_priority !=
3990 qos_scn->new_qos_attr.qos_priority)
3991 bfa_cb_rport_qos_scn_prio(rp->rport_drv,
3992 qos_scn->old_qos_attr,
3993 qos_scn->new_qos_attr);
3994 break;
3995
3996 default:
3997 bfa_stats(rp, sm_on_unexp);
3998 bfa_sm_fault(rp->bfa, event);
3999 }
4000 }
4001
4002 /*
4003 * Firmware rport is being deleted - awaiting f/w response.
4004 */
4005 static void
4006 bfa_rport_sm_fwdelete(struct bfa_rport_s *rp, enum bfa_rport_event event)
4007 {
4008 bfa_trc(rp->bfa, rp->rport_tag);
4009 bfa_trc(rp->bfa, event);
4010
4011 switch (event) {
4012 case BFA_RPORT_SM_FWRSP:
4013 bfa_stats(rp, sm_fwd_rsp);
4014 bfa_sm_set_state(rp, bfa_rport_sm_offline);
4015 bfa_rport_offline_cb(rp);
4016 break;
4017
4018 case BFA_RPORT_SM_DELETE:
4019 bfa_stats(rp, sm_fwd_del);
4020 bfa_sm_set_state(rp, bfa_rport_sm_deleting);
4021 break;
4022
4023 case BFA_RPORT_SM_HWFAIL:
4024 bfa_stats(rp, sm_fwd_hwf);
4025 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
4026 bfa_rport_offline_cb(rp);
4027 break;
4028
4029 default:
4030 bfa_stats(rp, sm_fwd_unexp);
4031 bfa_sm_fault(rp->bfa, event);
4032 }
4033 }
4034
4035 static void
4036 bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event)
4037 {
4038 bfa_trc(rp->bfa, rp->rport_tag);
4039 bfa_trc(rp->bfa, event);
4040
4041 switch (event) {
4042 case BFA_RPORT_SM_QRESUME:
4043 bfa_sm_set_state(rp, bfa_rport_sm_fwdelete);
4044 bfa_rport_send_fwdelete(rp);
4045 break;
4046
4047 case BFA_RPORT_SM_DELETE:
4048 bfa_stats(rp, sm_fwd_del);
4049 bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull);
4050 break;
4051
4052 case BFA_RPORT_SM_HWFAIL:
4053 bfa_stats(rp, sm_fwd_hwf);
4054 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
4055 bfa_reqq_wcancel(&rp->reqq_wait);
4056 bfa_rport_offline_cb(rp);
4057 break;
4058
4059 default:
4060 bfa_stats(rp, sm_fwd_unexp);
4061 bfa_sm_fault(rp->bfa, event);
4062 }
4063 }
4064
4065 /*
4066 * Offline state.
4067 */
4068 static void
4069 bfa_rport_sm_offline(struct bfa_rport_s *rp, enum bfa_rport_event event)
4070 {
4071 bfa_trc(rp->bfa, rp->rport_tag);
4072 bfa_trc(rp->bfa, event);
4073
4074 switch (event) {
4075 case BFA_RPORT_SM_DELETE:
4076 bfa_stats(rp, sm_off_del);
4077 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4078 bfa_rport_free(rp);
4079 break;
4080
4081 case BFA_RPORT_SM_ONLINE:
4082 bfa_stats(rp, sm_off_on);
4083 if (bfa_rport_send_fwcreate(rp))
4084 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
4085 else
4086 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull);
4087 break;
4088
4089 case BFA_RPORT_SM_HWFAIL:
4090 bfa_stats(rp, sm_off_hwf);
4091 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
4092 break;
4093
4094 default:
4095 bfa_stats(rp, sm_off_unexp);
4096 bfa_sm_fault(rp->bfa, event);
4097 }
4098 }
4099
4100 /*
4101 * Rport is deleted, waiting for firmware response to delete.
4102 */
4103 static void
4104 bfa_rport_sm_deleting(struct bfa_rport_s *rp, enum bfa_rport_event event)
4105 {
4106 bfa_trc(rp->bfa, rp->rport_tag);
4107 bfa_trc(rp->bfa, event);
4108
4109 switch (event) {
4110 case BFA_RPORT_SM_FWRSP:
4111 bfa_stats(rp, sm_del_fwrsp);
4112 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4113 bfa_rport_free(rp);
4114 break;
4115
4116 case BFA_RPORT_SM_HWFAIL:
4117 bfa_stats(rp, sm_del_hwf);
4118 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4119 bfa_rport_free(rp);
4120 break;
4121
4122 default:
4123 bfa_sm_fault(rp->bfa, event);
4124 }
4125 }
4126
4127 static void
4128 bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event)
4129 {
4130 bfa_trc(rp->bfa, rp->rport_tag);
4131 bfa_trc(rp->bfa, event);
4132
4133 switch (event) {
4134 case BFA_RPORT_SM_QRESUME:
4135 bfa_stats(rp, sm_del_fwrsp);
4136 bfa_sm_set_state(rp, bfa_rport_sm_deleting);
4137 bfa_rport_send_fwdelete(rp);
4138 break;
4139
4140 case BFA_RPORT_SM_HWFAIL:
4141 bfa_stats(rp, sm_del_hwf);
4142 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4143 bfa_reqq_wcancel(&rp->reqq_wait);
4144 bfa_rport_free(rp);
4145 break;
4146
4147 default:
4148 bfa_sm_fault(rp->bfa, event);
4149 }
4150 }
4151
4152 /*
4153 * Waiting for rport create response from firmware. A delete is pending.
4154 */
4155 static void
4156 bfa_rport_sm_delete_pending(struct bfa_rport_s *rp,
4157 enum bfa_rport_event event)
4158 {
4159 bfa_trc(rp->bfa, rp->rport_tag);
4160 bfa_trc(rp->bfa, event);
4161
4162 switch (event) {
4163 case BFA_RPORT_SM_FWRSP:
4164 bfa_stats(rp, sm_delp_fwrsp);
4165 if (bfa_rport_send_fwdelete(rp))
4166 bfa_sm_set_state(rp, bfa_rport_sm_deleting);
4167 else
4168 bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull);
4169 break;
4170
4171 case BFA_RPORT_SM_HWFAIL:
4172 bfa_stats(rp, sm_delp_hwf);
4173 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4174 bfa_rport_free(rp);
4175 break;
4176
4177 default:
4178 bfa_stats(rp, sm_delp_unexp);
4179 bfa_sm_fault(rp->bfa, event);
4180 }
4181 }
4182
4183 /*
4184 * Waiting for rport create response from firmware. Rport offline is pending.
4185 */
4186 static void
4187 bfa_rport_sm_offline_pending(struct bfa_rport_s *rp,
4188 enum bfa_rport_event event)
4189 {
4190 bfa_trc(rp->bfa, rp->rport_tag);
4191 bfa_trc(rp->bfa, event);
4192
4193 switch (event) {
4194 case BFA_RPORT_SM_FWRSP:
4195 bfa_stats(rp, sm_offp_fwrsp);
4196 if (bfa_rport_send_fwdelete(rp))
4197 bfa_sm_set_state(rp, bfa_rport_sm_fwdelete);
4198 else
4199 bfa_sm_set_state(rp, bfa_rport_sm_fwdelete_qfull);
4200 break;
4201
4202 case BFA_RPORT_SM_DELETE:
4203 bfa_stats(rp, sm_offp_del);
4204 bfa_sm_set_state(rp, bfa_rport_sm_delete_pending);
4205 break;
4206
4207 case BFA_RPORT_SM_HWFAIL:
4208 bfa_stats(rp, sm_offp_hwf);
4209 bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
4210 break;
4211
4212 default:
4213 bfa_stats(rp, sm_offp_unexp);
4214 bfa_sm_fault(rp->bfa, event);
4215 }
4216 }
4217
4218 /*
4219 * IOC h/w failed.
4220 */
4221 static void
4222 bfa_rport_sm_iocdisable(struct bfa_rport_s *rp, enum bfa_rport_event event)
4223 {
4224 bfa_trc(rp->bfa, rp->rport_tag);
4225 bfa_trc(rp->bfa, event);
4226
4227 switch (event) {
4228 case BFA_RPORT_SM_OFFLINE:
4229 bfa_stats(rp, sm_iocd_off);
4230 bfa_rport_offline_cb(rp);
4231 break;
4232
4233 case BFA_RPORT_SM_DELETE:
4234 bfa_stats(rp, sm_iocd_del);
4235 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4236 bfa_rport_free(rp);
4237 break;
4238
4239 case BFA_RPORT_SM_ONLINE:
4240 bfa_stats(rp, sm_iocd_on);
4241 if (bfa_rport_send_fwcreate(rp))
4242 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
4243 else
4244 bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull);
4245 break;
4246
4247 case BFA_RPORT_SM_HWFAIL:
4248 break;
4249
4250 default:
4251 bfa_stats(rp, sm_iocd_unexp);
4252 bfa_sm_fault(rp->bfa, event);
4253 }
4254 }
4255
4256
4257
4258 /*
4259 * bfa_rport_private BFA rport private functions
4260 */
4261
4262 static void
4263 __bfa_cb_rport_online(void *cbarg, bfa_boolean_t complete)
4264 {
4265 struct bfa_rport_s *rp = cbarg;
4266
4267 if (complete)
4268 bfa_cb_rport_online(rp->rport_drv);
4269 }
4270
4271 static void
4272 __bfa_cb_rport_offline(void *cbarg, bfa_boolean_t complete)
4273 {
4274 struct bfa_rport_s *rp = cbarg;
4275
4276 if (complete)
4277 bfa_cb_rport_offline(rp->rport_drv);
4278 }
4279
4280 static void
4281 bfa_rport_qresume(void *cbarg)
4282 {
4283 struct bfa_rport_s *rp = cbarg;
4284
4285 bfa_sm_send_event(rp, BFA_RPORT_SM_QRESUME);
4286 }
4287
4288 static void
4289 bfa_rport_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
4290 u32 *dm_len)
4291 {
4292 if (cfg->fwcfg.num_rports < BFA_RPORT_MIN)
4293 cfg->fwcfg.num_rports = BFA_RPORT_MIN;
4294
4295 *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_rport_s);
4296 }
4297
4298 static void
4299 bfa_rport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
4300 struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
4301 {
4302 struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(bfa);
4303 struct bfa_rport_s *rp;
4304 u16 i;
4305
4306 INIT_LIST_HEAD(&mod->rp_free_q);
4307 INIT_LIST_HEAD(&mod->rp_active_q);
4308
4309 rp = (struct bfa_rport_s *) bfa_meminfo_kva(meminfo);
4310 mod->rps_list = rp;
4311 mod->num_rports = cfg->fwcfg.num_rports;
4312
4313 WARN_ON(!mod->num_rports ||
4314 (mod->num_rports & (mod->num_rports - 1)));
4315
4316 for (i = 0; i < mod->num_rports; i++, rp++) {
4317 memset(rp, 0, sizeof(struct bfa_rport_s));
4318 rp->bfa = bfa;
4319 rp->rport_tag = i;
4320 bfa_sm_set_state(rp, bfa_rport_sm_uninit);
4321
4322 /*
4323 * - is unused
4324 */
4325 if (i)
4326 list_add_tail(&rp->qe, &mod->rp_free_q);
4327
4328 bfa_reqq_winit(&rp->reqq_wait, bfa_rport_qresume, rp);
4329 }
4330
4331 /*
4332 * consume memory
4333 */
4334 bfa_meminfo_kva(meminfo) = (u8 *) rp;
4335 }
4336
4337 static void
4338 bfa_rport_detach(struct bfa_s *bfa)
4339 {
4340 }
4341
4342 static void
4343 bfa_rport_start(struct bfa_s *bfa)
4344 {
4345 }
4346
4347 static void
4348 bfa_rport_stop(struct bfa_s *bfa)
4349 {
4350 }
4351
4352 static void
4353 bfa_rport_iocdisable(struct bfa_s *bfa)
4354 {
4355 struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(bfa);
4356 struct bfa_rport_s *rport;
4357 struct list_head *qe, *qen;
4358
4359 list_for_each_safe(qe, qen, &mod->rp_active_q) {
4360 rport = (struct bfa_rport_s *) qe;
4361 bfa_sm_send_event(rport, BFA_RPORT_SM_HWFAIL);
4362 }
4363 }
4364
4365 static struct bfa_rport_s *
4366 bfa_rport_alloc(struct bfa_rport_mod_s *mod)
4367 {
4368 struct bfa_rport_s *rport;
4369
4370 bfa_q_deq(&mod->rp_free_q, &rport);
4371 if (rport)
4372 list_add_tail(&rport->qe, &mod->rp_active_q);
4373
4374 return rport;
4375 }
4376
4377 static void
4378 bfa_rport_free(struct bfa_rport_s *rport)
4379 {
4380 struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(rport->bfa);
4381
4382 WARN_ON(!bfa_q_is_on_q(&mod->rp_active_q, rport));
4383 list_del(&rport->qe);
4384 list_add_tail(&rport->qe, &mod->rp_free_q);
4385 }
4386
4387 static bfa_boolean_t
4388 bfa_rport_send_fwcreate(struct bfa_rport_s *rp)
4389 {
4390 struct bfi_rport_create_req_s *m;
4391
4392 /*
4393 * check for room in queue to send request now
4394 */
4395 m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT);
4396 if (!m) {
4397 bfa_reqq_wait(rp->bfa, BFA_REQQ_RPORT, &rp->reqq_wait);
4398 return BFA_FALSE;
4399 }
4400
4401 bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_CREATE_REQ,
4402 bfa_lpuid(rp->bfa));
4403 m->bfa_handle = rp->rport_tag;
4404 m->max_frmsz = cpu_to_be16(rp->rport_info.max_frmsz);
4405 m->pid = rp->rport_info.pid;
4406 m->lp_tag = rp->rport_info.lp_tag;
4407 m->local_pid = rp->rport_info.local_pid;
4408 m->fc_class = rp->rport_info.fc_class;
4409 m->vf_en = rp->rport_info.vf_en;
4410 m->vf_id = rp->rport_info.vf_id;
4411 m->cisc = rp->rport_info.cisc;
4412
4413 /*
4414 * queue I/O message to firmware
4415 */
4416 bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT);
4417 return BFA_TRUE;
4418 }
4419
4420 static bfa_boolean_t
4421 bfa_rport_send_fwdelete(struct bfa_rport_s *rp)
4422 {
4423 struct bfi_rport_delete_req_s *m;
4424
4425 /*
4426 * check for room in queue to send request now
4427 */
4428 m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT);
4429 if (!m) {
4430 bfa_reqq_wait(rp->bfa, BFA_REQQ_RPORT, &rp->reqq_wait);
4431 return BFA_FALSE;
4432 }
4433
4434 bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_DELETE_REQ,
4435 bfa_lpuid(rp->bfa));
4436 m->fw_handle = rp->fw_handle;
4437
4438 /*
4439 * queue I/O message to firmware
4440 */
4441 bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT);
4442 return BFA_TRUE;
4443 }
4444
4445 static bfa_boolean_t
4446 bfa_rport_send_fwspeed(struct bfa_rport_s *rp)
4447 {
4448 struct bfa_rport_speed_req_s *m;
4449
4450 /*
4451 * check for room in queue to send request now
4452 */
4453 m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT);
4454 if (!m) {
4455 bfa_trc(rp->bfa, rp->rport_info.speed);
4456 return BFA_FALSE;
4457 }
4458
4459 bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_SET_SPEED_REQ,
4460 bfa_lpuid(rp->bfa));
4461 m->fw_handle = rp->fw_handle;
4462 m->speed = (u8)rp->rport_info.speed;
4463
4464 /*
4465 * queue I/O message to firmware
4466 */
4467 bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT);
4468 return BFA_TRUE;
4469 }
4470
4471
4472
4473 /*
4474 * bfa_rport_public
4475 */
4476
4477 /*
4478 * Rport interrupt processing.
4479 */
4480 void
4481 bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
4482 {
4483 union bfi_rport_i2h_msg_u msg;
4484 struct bfa_rport_s *rp;
4485
4486 bfa_trc(bfa, m->mhdr.msg_id);
4487
4488 msg.msg = m;
4489
4490 switch (m->mhdr.msg_id) {
4491 case BFI_RPORT_I2H_CREATE_RSP:
4492 rp = BFA_RPORT_FROM_TAG(bfa, msg.create_rsp->bfa_handle);
4493 rp->fw_handle = msg.create_rsp->fw_handle;
4494 rp->qos_attr = msg.create_rsp->qos_attr;
4495 WARN_ON(msg.create_rsp->status != BFA_STATUS_OK);
4496 bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP);
4497 break;
4498
4499 case BFI_RPORT_I2H_DELETE_RSP:
4500 rp = BFA_RPORT_FROM_TAG(bfa, msg.delete_rsp->bfa_handle);
4501 WARN_ON(msg.delete_rsp->status != BFA_STATUS_OK);
4502 bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP);
4503 break;
4504
4505 case BFI_RPORT_I2H_QOS_SCN:
4506 rp = BFA_RPORT_FROM_TAG(bfa, msg.qos_scn_evt->bfa_handle);
4507 rp->event_arg.fw_msg = msg.qos_scn_evt;
4508 bfa_sm_send_event(rp, BFA_RPORT_SM_QOS_SCN);
4509 break;
4510
4511 default:
4512 bfa_trc(bfa, m->mhdr.msg_id);
4513 WARN_ON(1);
4514 }
4515 }
4516
4517
4518
4519 /*
4520 * bfa_rport_api
4521 */
4522
4523 struct bfa_rport_s *
4524 bfa_rport_create(struct bfa_s *bfa, void *rport_drv)
4525 {
4526 struct bfa_rport_s *rp;
4527
4528 rp = bfa_rport_alloc(BFA_RPORT_MOD(bfa));
4529
4530 if (rp == NULL)
4531 return NULL;
4532
4533 rp->bfa = bfa;
4534 rp->rport_drv = rport_drv;
4535 memset(&rp->stats, 0, sizeof(rp->stats));
4536
4537 WARN_ON(!bfa_sm_cmp_state(rp, bfa_rport_sm_uninit));
4538 bfa_sm_send_event(rp, BFA_RPORT_SM_CREATE);
4539
4540 return rp;
4541 }
4542
4543 void
4544 bfa_rport_online(struct bfa_rport_s *rport, struct bfa_rport_info_s *rport_info)
4545 {
4546 WARN_ON(rport_info->max_frmsz == 0);
4547
4548 /*
4549 * Some JBODs are seen to be not setting PDU size correctly in PLOGI
4550 * responses. Default to minimum size.
4551 */
4552 if (rport_info->max_frmsz == 0) {
4553 bfa_trc(rport->bfa, rport->rport_tag);
4554 rport_info->max_frmsz = FC_MIN_PDUSZ;
4555 }
4556
4557 rport->rport_info = *rport_info;
4558 bfa_sm_send_event(rport, BFA_RPORT_SM_ONLINE);
4559 }
4560
4561 void
4562 bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed)
4563 {
4564 WARN_ON(speed == 0);
4565 WARN_ON(speed == BFA_PORT_SPEED_AUTO);
4566
4567 rport->rport_info.speed = speed;
4568 bfa_sm_send_event(rport, BFA_RPORT_SM_SET_SPEED);
4569 }
4570
4571
4572 /*
4573 * SGPG related functions
4574 */
4575
4576 /*
4577 * Compute and return memory needed by FCP(im) module.
4578 */
4579 static void
4580 bfa_sgpg_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
4581 u32 *dm_len)
4582 {
4583 if (cfg->drvcfg.num_sgpgs < BFA_SGPG_MIN)
4584 cfg->drvcfg.num_sgpgs = BFA_SGPG_MIN;
4585
4586 *km_len += (cfg->drvcfg.num_sgpgs + 1) * sizeof(struct bfa_sgpg_s);
4587 *dm_len += (cfg->drvcfg.num_sgpgs + 1) * sizeof(struct bfi_sgpg_s);
4588 }
4589
4590
4591 static void
4592 bfa_sgpg_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
4593 struct bfa_meminfo_s *minfo, struct bfa_pcidev_s *pcidev)
4594 {
4595 struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
4596 int i;
4597 struct bfa_sgpg_s *hsgpg;
4598 struct bfi_sgpg_s *sgpg;
4599 u64 align_len;
4600
4601 union {
4602 u64 pa;
4603 union bfi_addr_u addr;
4604 } sgpg_pa, sgpg_pa_tmp;
4605
4606 INIT_LIST_HEAD(&mod->sgpg_q);
4607 INIT_LIST_HEAD(&mod->sgpg_wait_q);
4608
4609 bfa_trc(bfa, cfg->drvcfg.num_sgpgs);
4610
4611 mod->num_sgpgs = cfg->drvcfg.num_sgpgs;
4612 mod->sgpg_arr_pa = bfa_meminfo_dma_phys(minfo);
4613 align_len = (BFA_SGPG_ROUNDUP(mod->sgpg_arr_pa) - mod->sgpg_arr_pa);
4614 mod->sgpg_arr_pa += align_len;
4615 mod->hsgpg_arr = (struct bfa_sgpg_s *) (bfa_meminfo_kva(minfo) +
4616 align_len);
4617 mod->sgpg_arr = (struct bfi_sgpg_s *) (bfa_meminfo_dma_virt(minfo) +
4618 align_len);
4619
4620 hsgpg = mod->hsgpg_arr;
4621 sgpg = mod->sgpg_arr;
4622 sgpg_pa.pa = mod->sgpg_arr_pa;
4623 mod->free_sgpgs = mod->num_sgpgs;
4624
4625 WARN_ON(sgpg_pa.pa & (sizeof(struct bfi_sgpg_s) - 1));
4626
4627 for (i = 0; i < mod->num_sgpgs; i++) {
4628 memset(hsgpg, 0, sizeof(*hsgpg));
4629 memset(sgpg, 0, sizeof(*sgpg));
4630
4631 hsgpg->sgpg = sgpg;
4632 sgpg_pa_tmp.pa = bfa_sgaddr_le(sgpg_pa.pa);
4633 hsgpg->sgpg_pa = sgpg_pa_tmp.addr;
4634 list_add_tail(&hsgpg->qe, &mod->sgpg_q);
4635
4636 hsgpg++;
4637 sgpg++;
4638 sgpg_pa.pa += sizeof(struct bfi_sgpg_s);
4639 }
4640
4641 bfa_meminfo_kva(minfo) = (u8 *) hsgpg;
4642 bfa_meminfo_dma_virt(minfo) = (u8 *) sgpg;
4643 bfa_meminfo_dma_phys(minfo) = sgpg_pa.pa;
4644 }
4645
4646 static void
4647 bfa_sgpg_detach(struct bfa_s *bfa)
4648 {
4649 }
4650
4651 static void
4652 bfa_sgpg_start(struct bfa_s *bfa)
4653 {
4654 }
4655
4656 static void
4657 bfa_sgpg_stop(struct bfa_s *bfa)
4658 {
4659 }
4660
4661 static void
4662 bfa_sgpg_iocdisable(struct bfa_s *bfa)
4663 {
4664 }
4665
4666 bfa_status_t
4667 bfa_sgpg_malloc(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpgs)
4668 {
4669 struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
4670 struct bfa_sgpg_s *hsgpg;
4671 int i;
4672
4673 if (mod->free_sgpgs < nsgpgs)
4674 return BFA_STATUS_ENOMEM;
4675
4676 for (i = 0; i < nsgpgs; i++) {
4677 bfa_q_deq(&mod->sgpg_q, &hsgpg);
4678 WARN_ON(!hsgpg);
4679 list_add_tail(&hsgpg->qe, sgpg_q);
4680 }
4681
4682 mod->free_sgpgs -= nsgpgs;
4683 return BFA_STATUS_OK;
4684 }
4685
4686 void
4687 bfa_sgpg_mfree(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpg)
4688 {
4689 struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
4690 struct bfa_sgpg_wqe_s *wqe;
4691
4692 mod->free_sgpgs += nsgpg;
4693 WARN_ON(mod->free_sgpgs > mod->num_sgpgs);
4694
4695 list_splice_tail_init(sgpg_q, &mod->sgpg_q);
4696
4697 if (list_empty(&mod->sgpg_wait_q))
4698 return;
4699
4700 /*
4701 * satisfy as many waiting requests as possible
4702 */
4703 do {
4704 wqe = bfa_q_first(&mod->sgpg_wait_q);
4705 if (mod->free_sgpgs < wqe->nsgpg)
4706 nsgpg = mod->free_sgpgs;
4707 else
4708 nsgpg = wqe->nsgpg;
4709 bfa_sgpg_malloc(bfa, &wqe->sgpg_q, nsgpg);
4710 wqe->nsgpg -= nsgpg;
4711 if (wqe->nsgpg == 0) {
4712 list_del(&wqe->qe);
4713 wqe->cbfn(wqe->cbarg);
4714 }
4715 } while (mod->free_sgpgs && !list_empty(&mod->sgpg_wait_q));
4716 }
4717
4718 void
4719 bfa_sgpg_wait(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe, int nsgpg)
4720 {
4721 struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
4722
4723 WARN_ON(nsgpg <= 0);
4724 WARN_ON(nsgpg <= mod->free_sgpgs);
4725
4726 wqe->nsgpg_total = wqe->nsgpg = nsgpg;
4727
4728 /*
4729 * allocate any left to this one first
4730 */
4731 if (mod->free_sgpgs) {
4732 /*
4733 * no one else is waiting for SGPG
4734 */
4735 WARN_ON(!list_empty(&mod->sgpg_wait_q));
4736 list_splice_tail_init(&mod->sgpg_q, &wqe->sgpg_q);
4737 wqe->nsgpg -= mod->free_sgpgs;
4738 mod->free_sgpgs = 0;
4739 }
4740
4741 list_add_tail(&wqe->qe, &mod->sgpg_wait_q);
4742 }
4743
4744 void
4745 bfa_sgpg_wcancel(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe)
4746 {
4747 struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
4748
4749 WARN_ON(!bfa_q_is_on_q(&mod->sgpg_wait_q, wqe));
4750 list_del(&wqe->qe);
4751
4752 if (wqe->nsgpg_total != wqe->nsgpg)
4753 bfa_sgpg_mfree(bfa, &wqe->sgpg_q,
4754 wqe->nsgpg_total - wqe->nsgpg);
4755 }
4756
4757 void
4758 bfa_sgpg_winit(struct bfa_sgpg_wqe_s *wqe, void (*cbfn) (void *cbarg),
4759 void *cbarg)
4760 {
4761 INIT_LIST_HEAD(&wqe->sgpg_q);
4762 wqe->cbfn = cbfn;
4763 wqe->cbarg = cbarg;
4764 }
4765
4766 /*
4767 * UF related functions
4768 */
4769 /*
4770 *****************************************************************************
4771 * Internal functions
4772 *****************************************************************************
4773 */
4774 static void
4775 __bfa_cb_uf_recv(void *cbarg, bfa_boolean_t complete)
4776 {
4777 struct bfa_uf_s *uf = cbarg;
4778 struct bfa_uf_mod_s *ufm = BFA_UF_MOD(uf->bfa);
4779
4780 if (complete)
4781 ufm->ufrecv(ufm->cbarg, uf);
4782 }
4783
4784 static void
4785 claim_uf_pbs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
4786 {
4787 u32 uf_pb_tot_sz;
4788
4789 ufm->uf_pbs_kva = (struct bfa_uf_buf_s *) bfa_meminfo_dma_virt(mi);
4790 ufm->uf_pbs_pa = bfa_meminfo_dma_phys(mi);
4791 uf_pb_tot_sz = BFA_ROUNDUP((sizeof(struct bfa_uf_buf_s) * ufm->num_ufs),
4792 BFA_DMA_ALIGN_SZ);
4793
4794 bfa_meminfo_dma_virt(mi) += uf_pb_tot_sz;
4795 bfa_meminfo_dma_phys(mi) += uf_pb_tot_sz;
4796
4797 memset((void *)ufm->uf_pbs_kva, 0, uf_pb_tot_sz);
4798 }
4799
4800 static void
4801 claim_uf_post_msgs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
4802 {
4803 struct bfi_uf_buf_post_s *uf_bp_msg;
4804 struct bfi_sge_s *sge;
4805 union bfi_addr_u sga_zero = { {0} };
4806 u16 i;
4807 u16 buf_len;
4808
4809 ufm->uf_buf_posts = (struct bfi_uf_buf_post_s *) bfa_meminfo_kva(mi);
4810 uf_bp_msg = ufm->uf_buf_posts;
4811
4812 for (i = 0, uf_bp_msg = ufm->uf_buf_posts; i < ufm->num_ufs;
4813 i++, uf_bp_msg++) {
4814 memset(uf_bp_msg, 0, sizeof(struct bfi_uf_buf_post_s));
4815
4816 uf_bp_msg->buf_tag = i;
4817 buf_len = sizeof(struct bfa_uf_buf_s);
4818 uf_bp_msg->buf_len = cpu_to_be16(buf_len);
4819 bfi_h2i_set(uf_bp_msg->mh, BFI_MC_UF, BFI_UF_H2I_BUF_POST,
4820 bfa_lpuid(ufm->bfa));
4821
4822 sge = uf_bp_msg->sge;
4823 sge[0].sg_len = buf_len;
4824 sge[0].flags = BFI_SGE_DATA_LAST;
4825 bfa_dma_addr_set(sge[0].sga, ufm_pbs_pa(ufm, i));
4826 bfa_sge_to_be(sge);
4827
4828 sge[1].sg_len = buf_len;
4829 sge[1].flags = BFI_SGE_PGDLEN;
4830 sge[1].sga = sga_zero;
4831 bfa_sge_to_be(&sge[1]);
4832 }
4833
4834 /*
4835 * advance pointer beyond consumed memory
4836 */
4837 bfa_meminfo_kva(mi) = (u8 *) uf_bp_msg;
4838 }
4839
4840 static void
4841 claim_ufs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
4842 {
4843 u16 i;
4844 struct bfa_uf_s *uf;
4845
4846 /*
4847 * Claim block of memory for UF list
4848 */
4849 ufm->uf_list = (struct bfa_uf_s *) bfa_meminfo_kva(mi);
4850
4851 /*
4852 * Initialize UFs and queue it in UF free queue
4853 */
4854 for (i = 0, uf = ufm->uf_list; i < ufm->num_ufs; i++, uf++) {
4855 memset(uf, 0, sizeof(struct bfa_uf_s));
4856 uf->bfa = ufm->bfa;
4857 uf->uf_tag = i;
4858 uf->pb_len = sizeof(struct bfa_uf_buf_s);
4859 uf->buf_kva = (void *)&ufm->uf_pbs_kva[i];
4860 uf->buf_pa = ufm_pbs_pa(ufm, i);
4861 list_add_tail(&uf->qe, &ufm->uf_free_q);
4862 }
4863
4864 /*
4865 * advance memory pointer
4866 */
4867 bfa_meminfo_kva(mi) = (u8 *) uf;
4868 }
4869
4870 static void
4871 uf_mem_claim(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
4872 {
4873 claim_uf_pbs(ufm, mi);
4874 claim_ufs(ufm, mi);
4875 claim_uf_post_msgs(ufm, mi);
4876 }
4877
4878 static void
4879 bfa_uf_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, u32 *dm_len)
4880 {
4881 u32 num_ufs = cfg->fwcfg.num_uf_bufs;
4882
4883 /*
4884 * dma-able memory for UF posted bufs
4885 */
4886 *dm_len += BFA_ROUNDUP((sizeof(struct bfa_uf_buf_s) * num_ufs),
4887 BFA_DMA_ALIGN_SZ);
4888
4889 /*
4890 * kernel Virtual memory for UFs and UF buf post msg copies
4891 */
4892 *ndm_len += sizeof(struct bfa_uf_s) * num_ufs;
4893 *ndm_len += sizeof(struct bfi_uf_buf_post_s) * num_ufs;
4894 }
4895
4896 static void
4897 bfa_uf_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
4898 struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
4899 {
4900 struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
4901
4902 memset(ufm, 0, sizeof(struct bfa_uf_mod_s));
4903 ufm->bfa = bfa;
4904 ufm->num_ufs = cfg->fwcfg.num_uf_bufs;
4905 INIT_LIST_HEAD(&ufm->uf_free_q);
4906 INIT_LIST_HEAD(&ufm->uf_posted_q);
4907
4908 uf_mem_claim(ufm, meminfo);
4909 }
4910
4911 static void
4912 bfa_uf_detach(struct bfa_s *bfa)
4913 {
4914 }
4915
4916 static struct bfa_uf_s *
4917 bfa_uf_get(struct bfa_uf_mod_s *uf_mod)
4918 {
4919 struct bfa_uf_s *uf;
4920
4921 bfa_q_deq(&uf_mod->uf_free_q, &uf);
4922 return uf;
4923 }
4924
4925 static void
4926 bfa_uf_put(struct bfa_uf_mod_s *uf_mod, struct bfa_uf_s *uf)
4927 {
4928 list_add_tail(&uf->qe, &uf_mod->uf_free_q);
4929 }
4930
4931 static bfa_status_t
4932 bfa_uf_post(struct bfa_uf_mod_s *ufm, struct bfa_uf_s *uf)
4933 {
4934 struct bfi_uf_buf_post_s *uf_post_msg;
4935
4936 uf_post_msg = bfa_reqq_next(ufm->bfa, BFA_REQQ_FCXP);
4937 if (!uf_post_msg)
4938 return BFA_STATUS_FAILED;
4939
4940 memcpy(uf_post_msg, &ufm->uf_buf_posts[uf->uf_tag],
4941 sizeof(struct bfi_uf_buf_post_s));
4942 bfa_reqq_produce(ufm->bfa, BFA_REQQ_FCXP);
4943
4944 bfa_trc(ufm->bfa, uf->uf_tag);
4945
4946 list_add_tail(&uf->qe, &ufm->uf_posted_q);
4947 return BFA_STATUS_OK;
4948 }
4949
4950 static void
4951 bfa_uf_post_all(struct bfa_uf_mod_s *uf_mod)
4952 {
4953 struct bfa_uf_s *uf;
4954
4955 while ((uf = bfa_uf_get(uf_mod)) != NULL) {
4956 if (bfa_uf_post(uf_mod, uf) != BFA_STATUS_OK)
4957 break;
4958 }
4959 }
4960
4961 static void
4962 uf_recv(struct bfa_s *bfa, struct bfi_uf_frm_rcvd_s *m)
4963 {
4964 struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
4965 u16 uf_tag = m->buf_tag;
4966 struct bfa_uf_buf_s *uf_buf = &ufm->uf_pbs_kva[uf_tag];
4967 struct bfa_uf_s *uf = &ufm->uf_list[uf_tag];
4968 u8 *buf = &uf_buf->d[0];
4969 struct fchs_s *fchs;
4970
4971 m->frm_len = be16_to_cpu(m->frm_len);
4972 m->xfr_len = be16_to_cpu(m->xfr_len);
4973
4974 fchs = (struct fchs_s *)uf_buf;
4975
4976 list_del(&uf->qe); /* dequeue from posted queue */
4977
4978 uf->data_ptr = buf;
4979 uf->data_len = m->xfr_len;
4980
4981 WARN_ON(uf->data_len < sizeof(struct fchs_s));
4982
4983 if (uf->data_len == sizeof(struct fchs_s)) {
4984 bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_UF, BFA_PL_EID_RX,
4985 uf->data_len, (struct fchs_s *)buf);
4986 } else {
4987 u32 pld_w0 = *((u32 *) (buf + sizeof(struct fchs_s)));
4988 bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_UF,
4989 BFA_PL_EID_RX, uf->data_len,
4990 (struct fchs_s *)buf, pld_w0);
4991 }
4992
4993 if (bfa->fcs)
4994 __bfa_cb_uf_recv(uf, BFA_TRUE);
4995 else
4996 bfa_cb_queue(bfa, &uf->hcb_qe, __bfa_cb_uf_recv, uf);
4997 }
4998
4999 static void
5000 bfa_uf_stop(struct bfa_s *bfa)
5001 {
5002 }
5003
5004 static void
5005 bfa_uf_iocdisable(struct bfa_s *bfa)
5006 {
5007 struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
5008 struct bfa_uf_s *uf;
5009 struct list_head *qe, *qen;
5010
5011 list_for_each_safe(qe, qen, &ufm->uf_posted_q) {
5012 uf = (struct bfa_uf_s *) qe;
5013 list_del(&uf->qe);
5014 bfa_uf_put(ufm, uf);
5015 }
5016 }
5017
5018 static void
5019 bfa_uf_start(struct bfa_s *bfa)
5020 {
5021 bfa_uf_post_all(BFA_UF_MOD(bfa));
5022 }
5023
5024 /*
5025 * Register handler for all unsolicted receive frames.
5026 *
5027 * @param[in] bfa BFA instance
5028 * @param[in] ufrecv receive handler function
5029 * @param[in] cbarg receive handler arg
5030 */
5031 void
5032 bfa_uf_recv_register(struct bfa_s *bfa, bfa_cb_uf_recv_t ufrecv, void *cbarg)
5033 {
5034 struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
5035
5036 ufm->ufrecv = ufrecv;
5037 ufm->cbarg = cbarg;
5038 }
5039
5040 /*
5041 * Free an unsolicited frame back to BFA.
5042 *
5043 * @param[in] uf unsolicited frame to be freed
5044 *
5045 * @return None
5046 */
5047 void
5048 bfa_uf_free(struct bfa_uf_s *uf)
5049 {
5050 bfa_uf_put(BFA_UF_MOD(uf->bfa), uf);
5051 bfa_uf_post_all(BFA_UF_MOD(uf->bfa));
5052 }
5053
5054
5055
5056 /*
5057 * uf_pub BFA uf module public functions
5058 */
5059 void
5060 bfa_uf_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
5061 {
5062 bfa_trc(bfa, msg->mhdr.msg_id);
5063
5064 switch (msg->mhdr.msg_id) {
5065 case BFI_UF_I2H_FRM_RCVD:
5066 uf_recv(bfa, (struct bfi_uf_frm_rcvd_s *) msg);
5067 break;
5068
5069 default:
5070 bfa_trc(bfa, msg->mhdr.msg_id);
5071 WARN_ON(1);
5072 }
5073 }
5074
5075
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