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[linux-2.6/kvm.git] / drivers / net / bna / bna_ctrl.c
blobcb2594c564dc16936bf3650f5297ec8bd278035b
1 /*
2 * Linux network driver for Brocade Converged Network Adapter.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License (GPL) Version 2 as
6 * published by the Free Software Foundation
7 *
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
12 */
13 /*
14 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
15 * All rights reserved
16 * www.brocade.com
17 */
18 #include "bna.h"
19 #include "bfa_cs.h"
20
21 static void bna_device_cb_port_stopped(void *arg, enum bna_cb_status status);
22
23 static void
24 bna_port_cb_link_up(struct bna_port *port, struct bfi_ll_aen *aen,
25 int status)
26 {
27 int i;
28 u8 prio_map;
29
30 port->llport.link_status = BNA_LINK_UP;
31 if (aen->cee_linkup)
32 port->llport.link_status = BNA_CEE_UP;
33
34 /* Compute the priority */
35 prio_map = aen->prio_map;
36 if (prio_map) {
37 for (i = 0; i < 8; i++) {
38 if ((prio_map >> i) & 0x1)
39 break;
40 }
41 port->priority = i;
42 } else
43 port->priority = 0;
44
45 /* Dispatch events */
46 bna_tx_mod_cee_link_status(&port->bna->tx_mod, aen->cee_linkup);
47 bna_tx_mod_prio_changed(&port->bna->tx_mod, port->priority);
48 port->link_cbfn(port->bna->bnad, port->llport.link_status);
49 }
50
51 static void
52 bna_port_cb_link_down(struct bna_port *port, int status)
53 {
54 port->llport.link_status = BNA_LINK_DOWN;
55
56 /* Dispatch events */
57 bna_tx_mod_cee_link_status(&port->bna->tx_mod, BNA_LINK_DOWN);
58 port->link_cbfn(port->bna->bnad, BNA_LINK_DOWN);
59 }
60
61 static inline int
62 llport_can_be_up(struct bna_llport *llport)
63 {
64 int ready = 0;
65 if (llport->type == BNA_PORT_T_REGULAR)
66 ready = ((llport->flags & BNA_LLPORT_F_ADMIN_UP) &&
67 (llport->flags & BNA_LLPORT_F_RX_STARTED) &&
68 (llport->flags & BNA_LLPORT_F_PORT_ENABLED));
69 else
70 ready = ((llport->flags & BNA_LLPORT_F_ADMIN_UP) &&
71 (llport->flags & BNA_LLPORT_F_RX_STARTED) &&
72 !(llport->flags & BNA_LLPORT_F_PORT_ENABLED));
73 return ready;
74 }
75
76 #define llport_is_up llport_can_be_up
77
78 enum bna_llport_event {
79 LLPORT_E_START = 1,
80 LLPORT_E_STOP = 2,
81 LLPORT_E_FAIL = 3,
82 LLPORT_E_UP = 4,
83 LLPORT_E_DOWN = 5,
84 LLPORT_E_FWRESP_UP_OK = 6,
85 LLPORT_E_FWRESP_UP_FAIL = 7,
86 LLPORT_E_FWRESP_DOWN = 8
87 };
88
89 static void
90 bna_llport_cb_port_enabled(struct bna_llport *llport)
91 {
92 llport->flags |= BNA_LLPORT_F_PORT_ENABLED;
93
94 if (llport_can_be_up(llport))
95 bfa_fsm_send_event(llport, LLPORT_E_UP);
96 }
97
98 static void
99 bna_llport_cb_port_disabled(struct bna_llport *llport)
100 {
101 int llport_up = llport_is_up(llport);
102
103 llport->flags &= ~BNA_LLPORT_F_PORT_ENABLED;
104
105 if (llport_up)
106 bfa_fsm_send_event(llport, LLPORT_E_DOWN);
107 }
108
109 /**
110 * MBOX
111 */
112 static int
113 bna_is_aen(u8 msg_id)
114 {
115 switch (msg_id) {
116 case BFI_LL_I2H_LINK_DOWN_AEN:
117 case BFI_LL_I2H_LINK_UP_AEN:
118 case BFI_LL_I2H_PORT_ENABLE_AEN:
119 case BFI_LL_I2H_PORT_DISABLE_AEN:
120 return 1;
121
122 default:
123 return 0;
124 }
125 }
126
127 static void
128 bna_mbox_aen_callback(struct bna *bna, struct bfi_mbmsg *msg)
129 {
130 struct bfi_ll_aen *aen = (struct bfi_ll_aen *)(msg);
131
132 switch (aen->mh.msg_id) {
133 case BFI_LL_I2H_LINK_UP_AEN:
134 bna_port_cb_link_up(&bna->port, aen, aen->reason);
135 break;
136 case BFI_LL_I2H_LINK_DOWN_AEN:
137 bna_port_cb_link_down(&bna->port, aen->reason);
138 break;
139 case BFI_LL_I2H_PORT_ENABLE_AEN:
140 bna_llport_cb_port_enabled(&bna->port.llport);
141 break;
142 case BFI_LL_I2H_PORT_DISABLE_AEN:
143 bna_llport_cb_port_disabled(&bna->port.llport);
144 break;
145 default:
146 break;
147 }
148 }
149
150 static void
151 bna_ll_isr(void *llarg, struct bfi_mbmsg *msg)
152 {
153 struct bna *bna = (struct bna *)(llarg);
154 struct bfi_ll_rsp *mb_rsp = (struct bfi_ll_rsp *)(msg);
155 struct bfi_mhdr *cmd_h, *rsp_h;
156 struct bna_mbox_qe *mb_qe = NULL;
157 int to_post = 0;
158 u8 aen = 0;
159 char message[BNA_MESSAGE_SIZE];
160
161 aen = bna_is_aen(mb_rsp->mh.msg_id);
162
163 if (!aen) {
164 mb_qe = bfa_q_first(&bna->mbox_mod.posted_q);
165 cmd_h = (struct bfi_mhdr *)(&mb_qe->cmd.msg[0]);
166 rsp_h = (struct bfi_mhdr *)(&mb_rsp->mh);
167
168 if ((BFA_I2HM(cmd_h->msg_id) == rsp_h->msg_id) &&
169 (cmd_h->mtag.i2htok == rsp_h->mtag.i2htok)) {
170 /* Remove the request from posted_q, update state */
171 list_del(&mb_qe->qe);
172 bna->mbox_mod.msg_pending--;
173 if (list_empty(&bna->mbox_mod.posted_q))
174 bna->mbox_mod.state = BNA_MBOX_FREE;
175 else
176 to_post = 1;
177
178 /* Dispatch the cbfn */
179 if (mb_qe->cbfn)
180 mb_qe->cbfn(mb_qe->cbarg, mb_rsp->error);
181
182 /* Post the next entry, if needed */
183 if (to_post) {
184 mb_qe = bfa_q_first(&bna->mbox_mod.posted_q);
185 bfa_nw_ioc_mbox_queue(&bna->device.ioc,
186 &mb_qe->cmd);
187 }
188 } else {
189 snprintf(message, BNA_MESSAGE_SIZE,
190 "No matching rsp for [%d:%d:%d]\n",
191 mb_rsp->mh.msg_class, mb_rsp->mh.msg_id,
192 mb_rsp->mh.mtag.i2htok);
193 pr_info("%s", message);
194 }
195
196 } else
197 bna_mbox_aen_callback(bna, msg);
198 }
199
200 static void
201 bna_err_handler(struct bna *bna, u32 intr_status)
202 {
203 u32 init_halt;
204
205 if (intr_status & __HALT_STATUS_BITS) {
206 init_halt = readl(bna->device.ioc.ioc_regs.ll_halt);
207 init_halt &= ~__FW_INIT_HALT_P;
208 writel(init_halt, bna->device.ioc.ioc_regs.ll_halt);
209 }
210
211 bfa_nw_ioc_error_isr(&bna->device.ioc);
212 }
213
214 void
215 bna_mbox_handler(struct bna *bna, u32 intr_status)
216 {
217 if (BNA_IS_ERR_INTR(intr_status)) {
218 bna_err_handler(bna, intr_status);
219 return;
220 }
221 if (BNA_IS_MBOX_INTR(intr_status))
222 bfa_nw_ioc_mbox_isr(&bna->device.ioc);
223 }
224
225 void
226 bna_mbox_send(struct bna *bna, struct bna_mbox_qe *mbox_qe)
227 {
228 struct bfi_mhdr *mh;
229
230 mh = (struct bfi_mhdr *)(&mbox_qe->cmd.msg[0]);
231
232 mh->mtag.i2htok = htons(bna->mbox_mod.msg_ctr);
233 bna->mbox_mod.msg_ctr++;
234 bna->mbox_mod.msg_pending++;
235 if (bna->mbox_mod.state == BNA_MBOX_FREE) {
236 list_add_tail(&mbox_qe->qe, &bna->mbox_mod.posted_q);
237 bfa_nw_ioc_mbox_queue(&bna->device.ioc, &mbox_qe->cmd);
238 bna->mbox_mod.state = BNA_MBOX_POSTED;
239 } else {
240 list_add_tail(&mbox_qe->qe, &bna->mbox_mod.posted_q);
241 }
242 }
243
244 static void
245 bna_mbox_flush_q(struct bna *bna, struct list_head *q)
246 {
247 struct bna_mbox_qe *mb_qe = NULL;
248 struct list_head *mb_q;
249 void (*cbfn)(void *arg, int status);
250 void *cbarg;
251
252 mb_q = &bna->mbox_mod.posted_q;
253
254 while (!list_empty(mb_q)) {
255 bfa_q_deq(mb_q, &mb_qe);
256 cbfn = mb_qe->cbfn;
257 cbarg = mb_qe->cbarg;
258 bfa_q_qe_init(mb_qe);
259 bna->mbox_mod.msg_pending--;
260
261 if (cbfn)
262 cbfn(cbarg, BNA_CB_NOT_EXEC);
263 }
264
265 bna->mbox_mod.state = BNA_MBOX_FREE;
266 }
267
268 static void
269 bna_mbox_mod_start(struct bna_mbox_mod *mbox_mod)
270 {
271 }
272
273 static void
274 bna_mbox_mod_stop(struct bna_mbox_mod *mbox_mod)
275 {
276 bna_mbox_flush_q(mbox_mod->bna, &mbox_mod->posted_q);
277 }
278
279 static void
280 bna_mbox_mod_init(struct bna_mbox_mod *mbox_mod, struct bna *bna)
281 {
282 bfa_nw_ioc_mbox_regisr(&bna->device.ioc, BFI_MC_LL, bna_ll_isr, bna);
283 mbox_mod->state = BNA_MBOX_FREE;
284 mbox_mod->msg_ctr = mbox_mod->msg_pending = 0;
285 INIT_LIST_HEAD(&mbox_mod->posted_q);
286 mbox_mod->bna = bna;
287 }
288
289 static void
290 bna_mbox_mod_uninit(struct bna_mbox_mod *mbox_mod)
291 {
292 mbox_mod->bna = NULL;
293 }
294
295 /**
296 * LLPORT
297 */
298 #define call_llport_stop_cbfn(llport, status)\
299 do {\
300 if ((llport)->stop_cbfn)\
301 (llport)->stop_cbfn(&(llport)->bna->port, status);\
302 (llport)->stop_cbfn = NULL;\
303 } while (0)
304
305 static void bna_fw_llport_up(struct bna_llport *llport);
306 static void bna_fw_cb_llport_up(void *arg, int status);
307 static void bna_fw_llport_down(struct bna_llport *llport);
308 static void bna_fw_cb_llport_down(void *arg, int status);
309 static void bna_llport_start(struct bna_llport *llport);
310 static void bna_llport_stop(struct bna_llport *llport);
311 static void bna_llport_fail(struct bna_llport *llport);
312
313 enum bna_llport_state {
314 BNA_LLPORT_STOPPED = 1,
315 BNA_LLPORT_DOWN = 2,
316 BNA_LLPORT_UP_RESP_WAIT = 3,
317 BNA_LLPORT_DOWN_RESP_WAIT = 4,
318 BNA_LLPORT_UP = 5,
319 BNA_LLPORT_LAST_RESP_WAIT = 6
320 };
321
322 bfa_fsm_state_decl(bna_llport, stopped, struct bna_llport,
323 enum bna_llport_event);
324 bfa_fsm_state_decl(bna_llport, down, struct bna_llport,
325 enum bna_llport_event);
326 bfa_fsm_state_decl(bna_llport, up_resp_wait, struct bna_llport,
327 enum bna_llport_event);
328 bfa_fsm_state_decl(bna_llport, down_resp_wait, struct bna_llport,
329 enum bna_llport_event);
330 bfa_fsm_state_decl(bna_llport, up, struct bna_llport,
331 enum bna_llport_event);
332 bfa_fsm_state_decl(bna_llport, last_resp_wait, struct bna_llport,
333 enum bna_llport_event);
334
335 static struct bfa_sm_table llport_sm_table[] = {
336 {BFA_SM(bna_llport_sm_stopped), BNA_LLPORT_STOPPED},
337 {BFA_SM(bna_llport_sm_down), BNA_LLPORT_DOWN},
338 {BFA_SM(bna_llport_sm_up_resp_wait), BNA_LLPORT_UP_RESP_WAIT},
339 {BFA_SM(bna_llport_sm_down_resp_wait), BNA_LLPORT_DOWN_RESP_WAIT},
340 {BFA_SM(bna_llport_sm_up), BNA_LLPORT_UP},
341 {BFA_SM(bna_llport_sm_last_resp_wait), BNA_LLPORT_LAST_RESP_WAIT}
342 };
343
344 static void
345 bna_llport_sm_stopped_entry(struct bna_llport *llport)
346 {
347 llport->bna->port.link_cbfn((llport)->bna->bnad, BNA_LINK_DOWN);
348 call_llport_stop_cbfn(llport, BNA_CB_SUCCESS);
349 }
350
351 static void
352 bna_llport_sm_stopped(struct bna_llport *llport,
353 enum bna_llport_event event)
354 {
355 switch (event) {
356 case LLPORT_E_START:
357 bfa_fsm_set_state(llport, bna_llport_sm_down);
358 break;
359
360 case LLPORT_E_STOP:
361 call_llport_stop_cbfn(llport, BNA_CB_SUCCESS);
362 break;
363
364 case LLPORT_E_FAIL:
365 break;
366
367 case LLPORT_E_DOWN:
368 /* This event is received due to Rx objects failing */
369 /* No-op */
370 break;
371
372 case LLPORT_E_FWRESP_UP_OK:
373 case LLPORT_E_FWRESP_DOWN:
374 /**
375 * These events are received due to flushing of mbox when
376 * device fails
377 */
378 /* No-op */
379 break;
380
381 default:
382 bfa_sm_fault(event);
383 }
384 }
385
386 static void
387 bna_llport_sm_down_entry(struct bna_llport *llport)
388 {
389 bnad_cb_port_link_status((llport)->bna->bnad, BNA_LINK_DOWN);
390 }
391
392 static void
393 bna_llport_sm_down(struct bna_llport *llport,
394 enum bna_llport_event event)
395 {
396 switch (event) {
397 case LLPORT_E_STOP:
398 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
399 break;
400
401 case LLPORT_E_FAIL:
402 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
403 break;
404
405 case LLPORT_E_UP:
406 bfa_fsm_set_state(llport, bna_llport_sm_up_resp_wait);
407 bna_fw_llport_up(llport);
408 break;
409
410 default:
411 bfa_sm_fault(event);
412 }
413 }
414
415 static void
416 bna_llport_sm_up_resp_wait_entry(struct bna_llport *llport)
417 {
418 BUG_ON(!llport_can_be_up(llport));
419 /**
420 * NOTE: Do not call bna_fw_llport_up() here. That will over step
421 * mbox due to down_resp_wait -> up_resp_wait transition on event
422 * LLPORT_E_UP
423 */
424 }
425
426 static void
427 bna_llport_sm_up_resp_wait(struct bna_llport *llport,
428 enum bna_llport_event event)
429 {
430 switch (event) {
431 case LLPORT_E_STOP:
432 bfa_fsm_set_state(llport, bna_llport_sm_last_resp_wait);
433 break;
434
435 case LLPORT_E_FAIL:
436 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
437 break;
438
439 case LLPORT_E_DOWN:
440 bfa_fsm_set_state(llport, bna_llport_sm_down_resp_wait);
441 break;
442
443 case LLPORT_E_FWRESP_UP_OK:
444 bfa_fsm_set_state(llport, bna_llport_sm_up);
445 break;
446
447 case LLPORT_E_FWRESP_UP_FAIL:
448 bfa_fsm_set_state(llport, bna_llport_sm_down);
449 break;
450
451 case LLPORT_E_FWRESP_DOWN:
452 /* down_resp_wait -> up_resp_wait transition on LLPORT_E_UP */
453 bna_fw_llport_up(llport);
454 break;
455
456 default:
457 bfa_sm_fault(event);
458 }
459 }
460
461 static void
462 bna_llport_sm_down_resp_wait_entry(struct bna_llport *llport)
463 {
464 /**
465 * NOTE: Do not call bna_fw_llport_down() here. That will over step
466 * mbox due to up_resp_wait -> down_resp_wait transition on event
467 * LLPORT_E_DOWN
468 */
469 }
470
471 static void
472 bna_llport_sm_down_resp_wait(struct bna_llport *llport,
473 enum bna_llport_event event)
474 {
475 switch (event) {
476 case LLPORT_E_STOP:
477 bfa_fsm_set_state(llport, bna_llport_sm_last_resp_wait);
478 break;
479
480 case LLPORT_E_FAIL:
481 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
482 break;
483
484 case LLPORT_E_UP:
485 bfa_fsm_set_state(llport, bna_llport_sm_up_resp_wait);
486 break;
487
488 case LLPORT_E_FWRESP_UP_OK:
489 /* up_resp_wait->down_resp_wait transition on LLPORT_E_DOWN */
490 bna_fw_llport_down(llport);
491 break;
492
493 case LLPORT_E_FWRESP_UP_FAIL:
494 case LLPORT_E_FWRESP_DOWN:
495 bfa_fsm_set_state(llport, bna_llport_sm_down);
496 break;
497
498 default:
499 bfa_sm_fault(event);
500 }
501 }
502
503 static void
504 bna_llport_sm_up_entry(struct bna_llport *llport)
505 {
506 }
507
508 static void
509 bna_llport_sm_up(struct bna_llport *llport,
510 enum bna_llport_event event)
511 {
512 switch (event) {
513 case LLPORT_E_STOP:
514 bfa_fsm_set_state(llport, bna_llport_sm_last_resp_wait);
515 bna_fw_llport_down(llport);
516 break;
517
518 case LLPORT_E_FAIL:
519 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
520 break;
521
522 case LLPORT_E_DOWN:
523 bfa_fsm_set_state(llport, bna_llport_sm_down_resp_wait);
524 bna_fw_llport_down(llport);
525 break;
526
527 default:
528 bfa_sm_fault(event);
529 }
530 }
531
532 static void
533 bna_llport_sm_last_resp_wait_entry(struct bna_llport *llport)
534 {
535 }
536
537 static void
538 bna_llport_sm_last_resp_wait(struct bna_llport *llport,
539 enum bna_llport_event event)
540 {
541 switch (event) {
542 case LLPORT_E_FAIL:
543 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
544 break;
545
546 case LLPORT_E_DOWN:
547 /**
548 * This event is received due to Rx objects stopping in
549 * parallel to llport
550 */
551 /* No-op */
552 break;
553
554 case LLPORT_E_FWRESP_UP_OK:
555 /* up_resp_wait->last_resp_wait transition on LLPORT_T_STOP */
556 bna_fw_llport_down(llport);
557 break;
558
559 case LLPORT_E_FWRESP_UP_FAIL:
560 case LLPORT_E_FWRESP_DOWN:
561 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
562 break;
563
564 default:
565 bfa_sm_fault(event);
566 }
567 }
568
569 static void
570 bna_fw_llport_admin_up(struct bna_llport *llport)
571 {
572 struct bfi_ll_port_admin_req ll_req;
573
574 memset(&ll_req, 0, sizeof(ll_req));
575 ll_req.mh.msg_class = BFI_MC_LL;
576 ll_req.mh.msg_id = BFI_LL_H2I_PORT_ADMIN_REQ;
577 ll_req.mh.mtag.h2i.lpu_id = 0;
578
579 ll_req.up = BNA_STATUS_T_ENABLED;
580
581 bna_mbox_qe_fill(&llport->mbox_qe, &ll_req, sizeof(ll_req),
582 bna_fw_cb_llport_up, llport);
583
584 bna_mbox_send(llport->bna, &llport->mbox_qe);
585 }
586
587 static void
588 bna_fw_llport_up(struct bna_llport *llport)
589 {
590 if (llport->type == BNA_PORT_T_REGULAR)
591 bna_fw_llport_admin_up(llport);
592 }
593
594 static void
595 bna_fw_cb_llport_up(void *arg, int status)
596 {
597 struct bna_llport *llport = (struct bna_llport *)arg;
598
599 bfa_q_qe_init(&llport->mbox_qe.qe);
600 if (status == BFI_LL_CMD_FAIL) {
601 if (llport->type == BNA_PORT_T_REGULAR)
602 llport->flags &= ~BNA_LLPORT_F_PORT_ENABLED;
603 else
604 llport->flags &= ~BNA_LLPORT_F_ADMIN_UP;
605 bfa_fsm_send_event(llport, LLPORT_E_FWRESP_UP_FAIL);
606 } else
607 bfa_fsm_send_event(llport, LLPORT_E_FWRESP_UP_OK);
608 }
609
610 static void
611 bna_fw_llport_admin_down(struct bna_llport *llport)
612 {
613 struct bfi_ll_port_admin_req ll_req;
614
615 memset(&ll_req, 0, sizeof(ll_req));
616 ll_req.mh.msg_class = BFI_MC_LL;
617 ll_req.mh.msg_id = BFI_LL_H2I_PORT_ADMIN_REQ;
618 ll_req.mh.mtag.h2i.lpu_id = 0;
619
620 ll_req.up = BNA_STATUS_T_DISABLED;
621
622 bna_mbox_qe_fill(&llport->mbox_qe, &ll_req, sizeof(ll_req),
623 bna_fw_cb_llport_down, llport);
624
625 bna_mbox_send(llport->bna, &llport->mbox_qe);
626 }
627
628 static void
629 bna_fw_llport_down(struct bna_llport *llport)
630 {
631 if (llport->type == BNA_PORT_T_REGULAR)
632 bna_fw_llport_admin_down(llport);
633 }
634
635 static void
636 bna_fw_cb_llport_down(void *arg, int status)
637 {
638 struct bna_llport *llport = (struct bna_llport *)arg;
639
640 bfa_q_qe_init(&llport->mbox_qe.qe);
641 bfa_fsm_send_event(llport, LLPORT_E_FWRESP_DOWN);
642 }
643
644 static void
645 bna_port_cb_llport_stopped(struct bna_port *port,
646 enum bna_cb_status status)
647 {
648 bfa_wc_down(&port->chld_stop_wc);
649 }
650
651 static void
652 bna_llport_init(struct bna_llport *llport, struct bna *bna)
653 {
654 llport->flags |= BNA_LLPORT_F_ADMIN_UP;
655 llport->flags |= BNA_LLPORT_F_PORT_ENABLED;
656 llport->type = BNA_PORT_T_REGULAR;
657 llport->bna = bna;
658
659 llport->link_status = BNA_LINK_DOWN;
660
661 llport->rx_started_count = 0;
662
663 llport->stop_cbfn = NULL;
664
665 bfa_q_qe_init(&llport->mbox_qe.qe);
666
667 bfa_fsm_set_state(llport, bna_llport_sm_stopped);
668 }
669
670 static void
671 bna_llport_uninit(struct bna_llport *llport)
672 {
673 llport->flags &= ~BNA_LLPORT_F_ADMIN_UP;
674 llport->flags &= ~BNA_LLPORT_F_PORT_ENABLED;
675
676 llport->bna = NULL;
677 }
678
679 static void
680 bna_llport_start(struct bna_llport *llport)
681 {
682 bfa_fsm_send_event(llport, LLPORT_E_START);
683 }
684
685 static void
686 bna_llport_stop(struct bna_llport *llport)
687 {
688 llport->stop_cbfn = bna_port_cb_llport_stopped;
689
690 bfa_fsm_send_event(llport, LLPORT_E_STOP);
691 }
692
693 static void
694 bna_llport_fail(struct bna_llport *llport)
695 {
696 /* Reset the physical port status to enabled */
697 llport->flags |= BNA_LLPORT_F_PORT_ENABLED;
698 bfa_fsm_send_event(llport, LLPORT_E_FAIL);
699 }
700
701 static int
702 bna_llport_state_get(struct bna_llport *llport)
703 {
704 return bfa_sm_to_state(llport_sm_table, llport->fsm);
705 }
706
707 void
708 bna_llport_rx_started(struct bna_llport *llport)
709 {
710 llport->rx_started_count++;
711
712 if (llport->rx_started_count == 1) {
713
714 llport->flags |= BNA_LLPORT_F_RX_STARTED;
715
716 if (llport_can_be_up(llport))
717 bfa_fsm_send_event(llport, LLPORT_E_UP);
718 }
719 }
720
721 void
722 bna_llport_rx_stopped(struct bna_llport *llport)
723 {
724 int llport_up = llport_is_up(llport);
725
726 llport->rx_started_count--;
727
728 if (llport->rx_started_count == 0) {
729
730 llport->flags &= ~BNA_LLPORT_F_RX_STARTED;
731
732 if (llport_up)
733 bfa_fsm_send_event(llport, LLPORT_E_DOWN);
734 }
735 }
736
737 /**
738 * PORT
739 */
740 #define bna_port_chld_start(port)\
741 do {\
742 enum bna_tx_type tx_type = ((port)->type == BNA_PORT_T_REGULAR) ?\
743 BNA_TX_T_REGULAR : BNA_TX_T_LOOPBACK;\
744 enum bna_rx_type rx_type = ((port)->type == BNA_PORT_T_REGULAR) ?\
745 BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK;\
746 bna_llport_start(&(port)->llport);\
747 bna_tx_mod_start(&(port)->bna->tx_mod, tx_type);\
748 bna_rx_mod_start(&(port)->bna->rx_mod, rx_type);\
749 } while (0)
750
751 #define bna_port_chld_stop(port)\
752 do {\
753 enum bna_tx_type tx_type = ((port)->type == BNA_PORT_T_REGULAR) ?\
754 BNA_TX_T_REGULAR : BNA_TX_T_LOOPBACK;\
755 enum bna_rx_type rx_type = ((port)->type == BNA_PORT_T_REGULAR) ?\
756 BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK;\
757 bfa_wc_up(&(port)->chld_stop_wc);\
758 bfa_wc_up(&(port)->chld_stop_wc);\
759 bfa_wc_up(&(port)->chld_stop_wc);\
760 bna_llport_stop(&(port)->llport);\
761 bna_tx_mod_stop(&(port)->bna->tx_mod, tx_type);\
762 bna_rx_mod_stop(&(port)->bna->rx_mod, rx_type);\
763 } while (0)
764
765 #define bna_port_chld_fail(port)\
766 do {\
767 bna_llport_fail(&(port)->llport);\
768 bna_tx_mod_fail(&(port)->bna->tx_mod);\
769 bna_rx_mod_fail(&(port)->bna->rx_mod);\
770 } while (0)
771
772 #define bna_port_rx_start(port)\
773 do {\
774 enum bna_rx_type rx_type = ((port)->type == BNA_PORT_T_REGULAR) ?\
775 BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK;\
776 bna_rx_mod_start(&(port)->bna->rx_mod, rx_type);\
777 } while (0)
778
779 #define bna_port_rx_stop(port)\
780 do {\
781 enum bna_rx_type rx_type = ((port)->type == BNA_PORT_T_REGULAR) ?\
782 BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK;\
783 bfa_wc_up(&(port)->chld_stop_wc);\
784 bna_rx_mod_stop(&(port)->bna->rx_mod, rx_type);\
785 } while (0)
786
787 #define call_port_stop_cbfn(port, status)\
788 do {\
789 if ((port)->stop_cbfn)\
790 (port)->stop_cbfn((port)->stop_cbarg, status);\
791 (port)->stop_cbfn = NULL;\
792 (port)->stop_cbarg = NULL;\
793 } while (0)
794
795 #define call_port_pause_cbfn(port, status)\
796 do {\
797 if ((port)->pause_cbfn)\
798 (port)->pause_cbfn((port)->bna->bnad, status);\
799 (port)->pause_cbfn = NULL;\
800 } while (0)
801
802 #define call_port_mtu_cbfn(port, status)\
803 do {\
804 if ((port)->mtu_cbfn)\
805 (port)->mtu_cbfn((port)->bna->bnad, status);\
806 (port)->mtu_cbfn = NULL;\
807 } while (0)
808
809 static void bna_fw_pause_set(struct bna_port *port);
810 static void bna_fw_cb_pause_set(void *arg, int status);
811 static void bna_fw_mtu_set(struct bna_port *port);
812 static void bna_fw_cb_mtu_set(void *arg, int status);
813
814 enum bna_port_event {
815 PORT_E_START = 1,
816 PORT_E_STOP = 2,
817 PORT_E_FAIL = 3,
818 PORT_E_PAUSE_CFG = 4,
819 PORT_E_MTU_CFG = 5,
820 PORT_E_CHLD_STOPPED = 6,
821 PORT_E_FWRESP_PAUSE = 7,
822 PORT_E_FWRESP_MTU = 8
823 };
824
825 enum bna_port_state {
826 BNA_PORT_STOPPED = 1,
827 BNA_PORT_MTU_INIT_WAIT = 2,
828 BNA_PORT_PAUSE_INIT_WAIT = 3,
829 BNA_PORT_LAST_RESP_WAIT = 4,
830 BNA_PORT_STARTED = 5,
831 BNA_PORT_PAUSE_CFG_WAIT = 6,
832 BNA_PORT_RX_STOP_WAIT = 7,
833 BNA_PORT_MTU_CFG_WAIT = 8,
834 BNA_PORT_CHLD_STOP_WAIT = 9
835 };
836
837 bfa_fsm_state_decl(bna_port, stopped, struct bna_port,
838 enum bna_port_event);
839 bfa_fsm_state_decl(bna_port, mtu_init_wait, struct bna_port,
840 enum bna_port_event);
841 bfa_fsm_state_decl(bna_port, pause_init_wait, struct bna_port,
842 enum bna_port_event);
843 bfa_fsm_state_decl(bna_port, last_resp_wait, struct bna_port,
844 enum bna_port_event);
845 bfa_fsm_state_decl(bna_port, started, struct bna_port,
846 enum bna_port_event);
847 bfa_fsm_state_decl(bna_port, pause_cfg_wait, struct bna_port,
848 enum bna_port_event);
849 bfa_fsm_state_decl(bna_port, rx_stop_wait, struct bna_port,
850 enum bna_port_event);
851 bfa_fsm_state_decl(bna_port, mtu_cfg_wait, struct bna_port,
852 enum bna_port_event);
853 bfa_fsm_state_decl(bna_port, chld_stop_wait, struct bna_port,
854 enum bna_port_event);
855
856 static struct bfa_sm_table port_sm_table[] = {
857 {BFA_SM(bna_port_sm_stopped), BNA_PORT_STOPPED},
858 {BFA_SM(bna_port_sm_mtu_init_wait), BNA_PORT_MTU_INIT_WAIT},
859 {BFA_SM(bna_port_sm_pause_init_wait), BNA_PORT_PAUSE_INIT_WAIT},
860 {BFA_SM(bna_port_sm_last_resp_wait), BNA_PORT_LAST_RESP_WAIT},
861 {BFA_SM(bna_port_sm_started), BNA_PORT_STARTED},
862 {BFA_SM(bna_port_sm_pause_cfg_wait), BNA_PORT_PAUSE_CFG_WAIT},
863 {BFA_SM(bna_port_sm_rx_stop_wait), BNA_PORT_RX_STOP_WAIT},
864 {BFA_SM(bna_port_sm_mtu_cfg_wait), BNA_PORT_MTU_CFG_WAIT},
865 {BFA_SM(bna_port_sm_chld_stop_wait), BNA_PORT_CHLD_STOP_WAIT}
866 };
867
868 static void
869 bna_port_sm_stopped_entry(struct bna_port *port)
870 {
871 call_port_pause_cbfn(port, BNA_CB_SUCCESS);
872 call_port_mtu_cbfn(port, BNA_CB_SUCCESS);
873 call_port_stop_cbfn(port, BNA_CB_SUCCESS);
874 }
875
876 static void
877 bna_port_sm_stopped(struct bna_port *port, enum bna_port_event event)
878 {
879 switch (event) {
880 case PORT_E_START:
881 bfa_fsm_set_state(port, bna_port_sm_mtu_init_wait);
882 break;
883
884 case PORT_E_STOP:
885 call_port_stop_cbfn(port, BNA_CB_SUCCESS);
886 break;
887
888 case PORT_E_FAIL:
889 /* No-op */
890 break;
891
892 case PORT_E_PAUSE_CFG:
893 call_port_pause_cbfn(port, BNA_CB_SUCCESS);
894 break;
895
896 case PORT_E_MTU_CFG:
897 call_port_mtu_cbfn(port, BNA_CB_SUCCESS);
898 break;
899
900 case PORT_E_CHLD_STOPPED:
901 /**
902 * This event is received due to LLPort, Tx and Rx objects
903 * failing
904 */
905 /* No-op */
906 break;
907
908 case PORT_E_FWRESP_PAUSE:
909 case PORT_E_FWRESP_MTU:
910 /**
911 * These events are received due to flushing of mbox when
912 * device fails
913 */
914 /* No-op */
915 break;
916
917 default:
918 bfa_sm_fault(event);
919 }
920 }
921
922 static void
923 bna_port_sm_mtu_init_wait_entry(struct bna_port *port)
924 {
925 bna_fw_mtu_set(port);
926 }
927
928 static void
929 bna_port_sm_mtu_init_wait(struct bna_port *port, enum bna_port_event event)
930 {
931 switch (event) {
932 case PORT_E_STOP:
933 bfa_fsm_set_state(port, bna_port_sm_last_resp_wait);
934 break;
935
936 case PORT_E_FAIL:
937 bfa_fsm_set_state(port, bna_port_sm_stopped);
938 break;
939
940 case PORT_E_PAUSE_CFG:
941 /* No-op */
942 break;
943
944 case PORT_E_MTU_CFG:
945 port->flags |= BNA_PORT_F_MTU_CHANGED;
946 break;
947
948 case PORT_E_FWRESP_MTU:
949 if (port->flags & BNA_PORT_F_MTU_CHANGED) {
950 port->flags &= ~BNA_PORT_F_MTU_CHANGED;
951 bna_fw_mtu_set(port);
952 } else {
953 bfa_fsm_set_state(port, bna_port_sm_pause_init_wait);
954 }
955 break;
956
957 default:
958 bfa_sm_fault(event);
959 }
960 }
961
962 static void
963 bna_port_sm_pause_init_wait_entry(struct bna_port *port)
964 {
965 bna_fw_pause_set(port);
966 }
967
968 static void
969 bna_port_sm_pause_init_wait(struct bna_port *port,
970 enum bna_port_event event)
971 {
972 switch (event) {
973 case PORT_E_STOP:
974 bfa_fsm_set_state(port, bna_port_sm_last_resp_wait);
975 break;
976
977 case PORT_E_FAIL:
978 bfa_fsm_set_state(port, bna_port_sm_stopped);
979 break;
980
981 case PORT_E_PAUSE_CFG:
982 port->flags |= BNA_PORT_F_PAUSE_CHANGED;
983 break;
984
985 case PORT_E_MTU_CFG:
986 port->flags |= BNA_PORT_F_MTU_CHANGED;
987 break;
988
989 case PORT_E_FWRESP_PAUSE:
990 if (port->flags & BNA_PORT_F_PAUSE_CHANGED) {
991 port->flags &= ~BNA_PORT_F_PAUSE_CHANGED;
992 bna_fw_pause_set(port);
993 } else if (port->flags & BNA_PORT_F_MTU_CHANGED) {
994 port->flags &= ~BNA_PORT_F_MTU_CHANGED;
995 bfa_fsm_set_state(port, bna_port_sm_mtu_init_wait);
996 } else {
997 bfa_fsm_set_state(port, bna_port_sm_started);
998 bna_port_chld_start(port);
999 }
1000 break;
1001
1002 default:
1003 bfa_sm_fault(event);
1004 }
1005 }
1006
1007 static void
1008 bna_port_sm_last_resp_wait_entry(struct bna_port *port)
1009 {
1010 }
1011
1012 static void
1013 bna_port_sm_last_resp_wait(struct bna_port *port,
1014 enum bna_port_event event)
1015 {
1016 switch (event) {
1017 case PORT_E_FAIL:
1018 case PORT_E_FWRESP_PAUSE:
1019 case PORT_E_FWRESP_MTU:
1020 bfa_fsm_set_state(port, bna_port_sm_stopped);
1021 break;
1022
1023 default:
1024 bfa_sm_fault(event);
1025 }
1026 }
1027
1028 static void
1029 bna_port_sm_started_entry(struct bna_port *port)
1030 {
1031 /**
1032 * NOTE: Do not call bna_port_chld_start() here, since it will be
1033 * inadvertently called during pause_cfg_wait->started transition
1034 * as well
1035 */
1036 call_port_pause_cbfn(port, BNA_CB_SUCCESS);
1037 call_port_mtu_cbfn(port, BNA_CB_SUCCESS);
1038 }
1039
1040 static void
1041 bna_port_sm_started(struct bna_port *port,
1042 enum bna_port_event event)
1043 {
1044 switch (event) {
1045 case PORT_E_STOP:
1046 bfa_fsm_set_state(port, bna_port_sm_chld_stop_wait);
1047 break;
1048
1049 case PORT_E_FAIL:
1050 bfa_fsm_set_state(port, bna_port_sm_stopped);
1051 bna_port_chld_fail(port);
1052 break;
1053
1054 case PORT_E_PAUSE_CFG:
1055 bfa_fsm_set_state(port, bna_port_sm_pause_cfg_wait);
1056 break;
1057
1058 case PORT_E_MTU_CFG:
1059 bfa_fsm_set_state(port, bna_port_sm_rx_stop_wait);
1060 break;
1061
1062 default:
1063 bfa_sm_fault(event);
1064 }
1065 }
1066
1067 static void
1068 bna_port_sm_pause_cfg_wait_entry(struct bna_port *port)
1069 {
1070 bna_fw_pause_set(port);
1071 }
1072
1073 static void
1074 bna_port_sm_pause_cfg_wait(struct bna_port *port,
1075 enum bna_port_event event)
1076 {
1077 switch (event) {
1078 case PORT_E_FAIL:
1079 bfa_fsm_set_state(port, bna_port_sm_stopped);
1080 bna_port_chld_fail(port);
1081 break;
1082
1083 case PORT_E_FWRESP_PAUSE:
1084 bfa_fsm_set_state(port, bna_port_sm_started);
1085 break;
1086
1087 default:
1088 bfa_sm_fault(event);
1089 }
1090 }
1091
1092 static void
1093 bna_port_sm_rx_stop_wait_entry(struct bna_port *port)
1094 {
1095 bna_port_rx_stop(port);
1096 }
1097
1098 static void
1099 bna_port_sm_rx_stop_wait(struct bna_port *port,
1100 enum bna_port_event event)
1101 {
1102 switch (event) {
1103 case PORT_E_FAIL:
1104 bfa_fsm_set_state(port, bna_port_sm_stopped);
1105 bna_port_chld_fail(port);
1106 break;
1107
1108 case PORT_E_CHLD_STOPPED:
1109 bfa_fsm_set_state(port, bna_port_sm_mtu_cfg_wait);
1110 break;
1111
1112 default:
1113 bfa_sm_fault(event);
1114 }
1115 }
1116
1117 static void
1118 bna_port_sm_mtu_cfg_wait_entry(struct bna_port *port)
1119 {
1120 bna_fw_mtu_set(port);
1121 }
1122
1123 static void
1124 bna_port_sm_mtu_cfg_wait(struct bna_port *port, enum bna_port_event event)
1125 {
1126 switch (event) {
1127 case PORT_E_FAIL:
1128 bfa_fsm_set_state(port, bna_port_sm_stopped);
1129 bna_port_chld_fail(port);
1130 break;
1131
1132 case PORT_E_FWRESP_MTU:
1133 bfa_fsm_set_state(port, bna_port_sm_started);
1134 bna_port_rx_start(port);
1135 break;
1136
1137 default:
1138 bfa_sm_fault(event);
1139 }
1140 }
1141
1142 static void
1143 bna_port_sm_chld_stop_wait_entry(struct bna_port *port)
1144 {
1145 bna_port_chld_stop(port);
1146 }
1147
1148 static void
1149 bna_port_sm_chld_stop_wait(struct bna_port *port,
1150 enum bna_port_event event)
1151 {
1152 switch (event) {
1153 case PORT_E_FAIL:
1154 bfa_fsm_set_state(port, bna_port_sm_stopped);
1155 bna_port_chld_fail(port);
1156 break;
1157
1158 case PORT_E_CHLD_STOPPED:
1159 bfa_fsm_set_state(port, bna_port_sm_stopped);
1160 break;
1161
1162 default:
1163 bfa_sm_fault(event);
1164 }
1165 }
1166
1167 static void
1168 bna_fw_pause_set(struct bna_port *port)
1169 {
1170 struct bfi_ll_set_pause_req ll_req;
1171
1172 memset(&ll_req, 0, sizeof(ll_req));
1173 ll_req.mh.msg_class = BFI_MC_LL;
1174 ll_req.mh.msg_id = BFI_LL_H2I_SET_PAUSE_REQ;
1175 ll_req.mh.mtag.h2i.lpu_id = 0;
1176
1177 ll_req.tx_pause = port->pause_config.tx_pause;
1178 ll_req.rx_pause = port->pause_config.rx_pause;
1179
1180 bna_mbox_qe_fill(&port->mbox_qe, &ll_req, sizeof(ll_req),
1181 bna_fw_cb_pause_set, port);
1182
1183 bna_mbox_send(port->bna, &port->mbox_qe);
1184 }
1185
1186 static void
1187 bna_fw_cb_pause_set(void *arg, int status)
1188 {
1189 struct bna_port *port = (struct bna_port *)arg;
1190
1191 bfa_q_qe_init(&port->mbox_qe.qe);
1192 bfa_fsm_send_event(port, PORT_E_FWRESP_PAUSE);
1193 }
1194
1195 void
1196 bna_fw_mtu_set(struct bna_port *port)
1197 {
1198 struct bfi_ll_mtu_info_req ll_req;
1199
1200 bfi_h2i_set(ll_req.mh, BFI_MC_LL, BFI_LL_H2I_MTU_INFO_REQ, 0);
1201 ll_req.mtu = htons((u16)port->mtu);
1202
1203 bna_mbox_qe_fill(&port->mbox_qe, &ll_req, sizeof(ll_req),
1204 bna_fw_cb_mtu_set, port);
1205 bna_mbox_send(port->bna, &port->mbox_qe);
1206 }
1207
1208 void
1209 bna_fw_cb_mtu_set(void *arg, int status)
1210 {
1211 struct bna_port *port = (struct bna_port *)arg;
1212
1213 bfa_q_qe_init(&port->mbox_qe.qe);
1214 bfa_fsm_send_event(port, PORT_E_FWRESP_MTU);
1215 }
1216
1217 static void
1218 bna_port_cb_chld_stopped(void *arg)
1219 {
1220 struct bna_port *port = (struct bna_port *)arg;
1221
1222 bfa_fsm_send_event(port, PORT_E_CHLD_STOPPED);
1223 }
1224
1225 static void
1226 bna_port_init(struct bna_port *port, struct bna *bna)
1227 {
1228 port->bna = bna;
1229 port->flags = 0;
1230 port->mtu = 0;
1231 port->type = BNA_PORT_T_REGULAR;
1232
1233 port->link_cbfn = bnad_cb_port_link_status;
1234
1235 port->chld_stop_wc.wc_resume = bna_port_cb_chld_stopped;
1236 port->chld_stop_wc.wc_cbarg = port;
1237 port->chld_stop_wc.wc_count = 0;
1238
1239 port->stop_cbfn = NULL;
1240 port->stop_cbarg = NULL;
1241
1242 port->pause_cbfn = NULL;
1243
1244 port->mtu_cbfn = NULL;
1245
1246 bfa_q_qe_init(&port->mbox_qe.qe);
1247
1248 bfa_fsm_set_state(port, bna_port_sm_stopped);
1249
1250 bna_llport_init(&port->llport, bna);
1251 }
1252
1253 static void
1254 bna_port_uninit(struct bna_port *port)
1255 {
1256 bna_llport_uninit(&port->llport);
1257
1258 port->flags = 0;
1259
1260 port->bna = NULL;
1261 }
1262
1263 static int
1264 bna_port_state_get(struct bna_port *port)
1265 {
1266 return bfa_sm_to_state(port_sm_table, port->fsm);
1267 }
1268
1269 static void
1270 bna_port_start(struct bna_port *port)
1271 {
1272 port->flags |= BNA_PORT_F_DEVICE_READY;
1273 if (port->flags & BNA_PORT_F_ENABLED)
1274 bfa_fsm_send_event(port, PORT_E_START);
1275 }
1276
1277 static void
1278 bna_port_stop(struct bna_port *port)
1279 {
1280 port->stop_cbfn = bna_device_cb_port_stopped;
1281 port->stop_cbarg = &port->bna->device;
1282
1283 port->flags &= ~BNA_PORT_F_DEVICE_READY;
1284 bfa_fsm_send_event(port, PORT_E_STOP);
1285 }
1286
1287 static void
1288 bna_port_fail(struct bna_port *port)
1289 {
1290 port->flags &= ~BNA_PORT_F_DEVICE_READY;
1291 bfa_fsm_send_event(port, PORT_E_FAIL);
1292 }
1293
1294 void
1295 bna_port_cb_tx_stopped(struct bna_port *port, enum bna_cb_status status)
1296 {
1297 bfa_wc_down(&port->chld_stop_wc);
1298 }
1299
1300 void
1301 bna_port_cb_rx_stopped(struct bna_port *port, enum bna_cb_status status)
1302 {
1303 bfa_wc_down(&port->chld_stop_wc);
1304 }
1305
1306 int
1307 bna_port_mtu_get(struct bna_port *port)
1308 {
1309 return port->mtu;
1310 }
1311
1312 void
1313 bna_port_enable(struct bna_port *port)
1314 {
1315 if (port->fsm != (bfa_sm_t)bna_port_sm_stopped)
1316 return;
1317
1318 port->flags |= BNA_PORT_F_ENABLED;
1319
1320 if (port->flags & BNA_PORT_F_DEVICE_READY)
1321 bfa_fsm_send_event(port, PORT_E_START);
1322 }
1323
1324 void
1325 bna_port_disable(struct bna_port *port, enum bna_cleanup_type type,
1326 void (*cbfn)(void *, enum bna_cb_status))
1327 {
1328 if (type == BNA_SOFT_CLEANUP) {
1329 (*cbfn)(port->bna->bnad, BNA_CB_SUCCESS);
1330 return;
1331 }
1332
1333 port->stop_cbfn = cbfn;
1334 port->stop_cbarg = port->bna->bnad;
1335
1336 port->flags &= ~BNA_PORT_F_ENABLED;
1337
1338 bfa_fsm_send_event(port, PORT_E_STOP);
1339 }
1340
1341 void
1342 bna_port_pause_config(struct bna_port *port,
1343 struct bna_pause_config *pause_config,
1344 void (*cbfn)(struct bnad *, enum bna_cb_status))
1345 {
1346 port->pause_config = *pause_config;
1347
1348 port->pause_cbfn = cbfn;
1349
1350 bfa_fsm_send_event(port, PORT_E_PAUSE_CFG);
1351 }
1352
1353 void
1354 bna_port_mtu_set(struct bna_port *port, int mtu,
1355 void (*cbfn)(struct bnad *, enum bna_cb_status))
1356 {
1357 port->mtu = mtu;
1358
1359 port->mtu_cbfn = cbfn;
1360
1361 bfa_fsm_send_event(port, PORT_E_MTU_CFG);
1362 }
1363
1364 void
1365 bna_port_mac_get(struct bna_port *port, mac_t *mac)
1366 {
1367 *mac = bfa_nw_ioc_get_mac(&port->bna->device.ioc);
1368 }
1369
1370 /**
1371 * DEVICE
1372 */
1373 #define enable_mbox_intr(_device)\
1374 do {\
1375 u32 intr_status;\
1376 bna_intr_status_get((_device)->bna, intr_status);\
1377 bnad_cb_device_enable_mbox_intr((_device)->bna->bnad);\
1378 bna_mbox_intr_enable((_device)->bna);\
1379 } while (0)
1380
1381 #define disable_mbox_intr(_device)\
1382 do {\
1383 bna_mbox_intr_disable((_device)->bna);\
1384 bnad_cb_device_disable_mbox_intr((_device)->bna->bnad);\
1385 } while (0)
1386
1387 static const struct bna_chip_regs_offset reg_offset[] =
1388 {{HOST_PAGE_NUM_FN0, HOSTFN0_INT_STATUS,
1389 HOSTFN0_INT_MASK, HOST_MSIX_ERR_INDEX_FN0},
1390 {HOST_PAGE_NUM_FN1, HOSTFN1_INT_STATUS,
1391 HOSTFN1_INT_MASK, HOST_MSIX_ERR_INDEX_FN1},
1392 {HOST_PAGE_NUM_FN2, HOSTFN2_INT_STATUS,
1393 HOSTFN2_INT_MASK, HOST_MSIX_ERR_INDEX_FN2},
1394 {HOST_PAGE_NUM_FN3, HOSTFN3_INT_STATUS,
1395 HOSTFN3_INT_MASK, HOST_MSIX_ERR_INDEX_FN3},
1396 };
1397
1398 enum bna_device_event {
1399 DEVICE_E_ENABLE = 1,
1400 DEVICE_E_DISABLE = 2,
1401 DEVICE_E_IOC_READY = 3,
1402 DEVICE_E_IOC_FAILED = 4,
1403 DEVICE_E_IOC_DISABLED = 5,
1404 DEVICE_E_IOC_RESET = 6,
1405 DEVICE_E_PORT_STOPPED = 7,
1406 };
1407
1408 enum bna_device_state {
1409 BNA_DEVICE_STOPPED = 1,
1410 BNA_DEVICE_IOC_READY_WAIT = 2,
1411 BNA_DEVICE_READY = 3,
1412 BNA_DEVICE_PORT_STOP_WAIT = 4,
1413 BNA_DEVICE_IOC_DISABLE_WAIT = 5,
1414 BNA_DEVICE_FAILED = 6
1415 };
1416
1417 bfa_fsm_state_decl(bna_device, stopped, struct bna_device,
1418 enum bna_device_event);
1419 bfa_fsm_state_decl(bna_device, ioc_ready_wait, struct bna_device,
1420 enum bna_device_event);
1421 bfa_fsm_state_decl(bna_device, ready, struct bna_device,
1422 enum bna_device_event);
1423 bfa_fsm_state_decl(bna_device, port_stop_wait, struct bna_device,
1424 enum bna_device_event);
1425 bfa_fsm_state_decl(bna_device, ioc_disable_wait, struct bna_device,
1426 enum bna_device_event);
1427 bfa_fsm_state_decl(bna_device, failed, struct bna_device,
1428 enum bna_device_event);
1429
1430 static struct bfa_sm_table device_sm_table[] = {
1431 {BFA_SM(bna_device_sm_stopped), BNA_DEVICE_STOPPED},
1432 {BFA_SM(bna_device_sm_ioc_ready_wait), BNA_DEVICE_IOC_READY_WAIT},
1433 {BFA_SM(bna_device_sm_ready), BNA_DEVICE_READY},
1434 {BFA_SM(bna_device_sm_port_stop_wait), BNA_DEVICE_PORT_STOP_WAIT},
1435 {BFA_SM(bna_device_sm_ioc_disable_wait), BNA_DEVICE_IOC_DISABLE_WAIT},
1436 {BFA_SM(bna_device_sm_failed), BNA_DEVICE_FAILED},
1437 };
1438
1439 static void
1440 bna_device_sm_stopped_entry(struct bna_device *device)
1441 {
1442 if (device->stop_cbfn)
1443 device->stop_cbfn(device->stop_cbarg, BNA_CB_SUCCESS);
1444
1445 device->stop_cbfn = NULL;
1446 device->stop_cbarg = NULL;
1447 }
1448
1449 static void
1450 bna_device_sm_stopped(struct bna_device *device,
1451 enum bna_device_event event)
1452 {
1453 switch (event) {
1454 case DEVICE_E_ENABLE:
1455 if (device->intr_type == BNA_INTR_T_MSIX)
1456 bna_mbox_msix_idx_set(device);
1457 bfa_nw_ioc_enable(&device->ioc);
1458 bfa_fsm_set_state(device, bna_device_sm_ioc_ready_wait);
1459 break;
1460
1461 case DEVICE_E_DISABLE:
1462 bfa_fsm_set_state(device, bna_device_sm_stopped);
1463 break;
1464
1465 case DEVICE_E_IOC_RESET:
1466 enable_mbox_intr(device);
1467 break;
1468
1469 case DEVICE_E_IOC_FAILED:
1470 bfa_fsm_set_state(device, bna_device_sm_failed);
1471 break;
1472
1473 default:
1474 bfa_sm_fault(event);
1475 }
1476 }
1477
1478 static void
1479 bna_device_sm_ioc_ready_wait_entry(struct bna_device *device)
1480 {
1481 /**
1482 * Do not call bfa_ioc_enable() here. It must be called in the
1483 * previous state due to failed -> ioc_ready_wait transition.
1484 */
1485 }
1486
1487 static void
1488 bna_device_sm_ioc_ready_wait(struct bna_device *device,
1489 enum bna_device_event event)
1490 {
1491 switch (event) {
1492 case DEVICE_E_DISABLE:
1493 if (device->ready_cbfn)
1494 device->ready_cbfn(device->ready_cbarg,
1495 BNA_CB_INTERRUPT);
1496 device->ready_cbfn = NULL;
1497 device->ready_cbarg = NULL;
1498 bfa_fsm_set_state(device, bna_device_sm_ioc_disable_wait);
1499 break;
1500
1501 case DEVICE_E_IOC_READY:
1502 bfa_fsm_set_state(device, bna_device_sm_ready);
1503 break;
1504
1505 case DEVICE_E_IOC_FAILED:
1506 bfa_fsm_set_state(device, bna_device_sm_failed);
1507 break;
1508
1509 case DEVICE_E_IOC_RESET:
1510 enable_mbox_intr(device);
1511 break;
1512
1513 default:
1514 bfa_sm_fault(event);
1515 }
1516 }
1517
1518 static void
1519 bna_device_sm_ready_entry(struct bna_device *device)
1520 {
1521 bna_mbox_mod_start(&device->bna->mbox_mod);
1522 bna_port_start(&device->bna->port);
1523
1524 if (device->ready_cbfn)
1525 device->ready_cbfn(device->ready_cbarg,
1526 BNA_CB_SUCCESS);
1527 device->ready_cbfn = NULL;
1528 device->ready_cbarg = NULL;
1529 }
1530
1531 static void
1532 bna_device_sm_ready(struct bna_device *device, enum bna_device_event event)
1533 {
1534 switch (event) {
1535 case DEVICE_E_DISABLE:
1536 bfa_fsm_set_state(device, bna_device_sm_port_stop_wait);
1537 break;
1538
1539 case DEVICE_E_IOC_FAILED:
1540 bfa_fsm_set_state(device, bna_device_sm_failed);
1541 break;
1542
1543 default:
1544 bfa_sm_fault(event);
1545 }
1546 }
1547
1548 static void
1549 bna_device_sm_port_stop_wait_entry(struct bna_device *device)
1550 {
1551 bna_port_stop(&device->bna->port);
1552 }
1553
1554 static void
1555 bna_device_sm_port_stop_wait(struct bna_device *device,
1556 enum bna_device_event event)
1557 {
1558 switch (event) {
1559 case DEVICE_E_PORT_STOPPED:
1560 bna_mbox_mod_stop(&device->bna->mbox_mod);
1561 bfa_fsm_set_state(device, bna_device_sm_ioc_disable_wait);
1562 break;
1563
1564 case DEVICE_E_IOC_FAILED:
1565 disable_mbox_intr(device);
1566 bna_port_fail(&device->bna->port);
1567 break;
1568
1569 default:
1570 bfa_sm_fault(event);
1571 }
1572 }
1573
1574 static void
1575 bna_device_sm_ioc_disable_wait_entry(struct bna_device *device)
1576 {
1577 bfa_nw_ioc_disable(&device->ioc);
1578 }
1579
1580 static void
1581 bna_device_sm_ioc_disable_wait(struct bna_device *device,
1582 enum bna_device_event event)
1583 {
1584 switch (event) {
1585 case DEVICE_E_IOC_DISABLED:
1586 disable_mbox_intr(device);
1587 bfa_fsm_set_state(device, bna_device_sm_stopped);
1588 break;
1589
1590 default:
1591 bfa_sm_fault(event);
1592 }
1593 }
1594
1595 static void
1596 bna_device_sm_failed_entry(struct bna_device *device)
1597 {
1598 disable_mbox_intr(device);
1599 bna_port_fail(&device->bna->port);
1600 bna_mbox_mod_stop(&device->bna->mbox_mod);
1601
1602 if (device->ready_cbfn)
1603 device->ready_cbfn(device->ready_cbarg,
1604 BNA_CB_FAIL);
1605 device->ready_cbfn = NULL;
1606 device->ready_cbarg = NULL;
1607 }
1608
1609 static void
1610 bna_device_sm_failed(struct bna_device *device,
1611 enum bna_device_event event)
1612 {
1613 switch (event) {
1614 case DEVICE_E_DISABLE:
1615 bfa_fsm_set_state(device, bna_device_sm_ioc_disable_wait);
1616 break;
1617
1618 case DEVICE_E_IOC_RESET:
1619 enable_mbox_intr(device);
1620 bfa_fsm_set_state(device, bna_device_sm_ioc_ready_wait);
1621 break;
1622
1623 default:
1624 bfa_sm_fault(event);
1625 }
1626 }
1627
1628 /* IOC callback functions */
1629
1630 static void
1631 bna_device_cb_iocll_ready(void *dev, enum bfa_status error)
1632 {
1633 struct bna_device *device = (struct bna_device *)dev;
1634
1635 if (error)
1636 bfa_fsm_send_event(device, DEVICE_E_IOC_FAILED);
1637 else
1638 bfa_fsm_send_event(device, DEVICE_E_IOC_READY);
1639 }
1640
1641 static void
1642 bna_device_cb_iocll_disabled(void *dev)
1643 {
1644 struct bna_device *device = (struct bna_device *)dev;
1645
1646 bfa_fsm_send_event(device, DEVICE_E_IOC_DISABLED);
1647 }
1648
1649 static void
1650 bna_device_cb_iocll_failed(void *dev)
1651 {
1652 struct bna_device *device = (struct bna_device *)dev;
1653
1654 bfa_fsm_send_event(device, DEVICE_E_IOC_FAILED);
1655 }
1656
1657 static void
1658 bna_device_cb_iocll_reset(void *dev)
1659 {
1660 struct bna_device *device = (struct bna_device *)dev;
1661
1662 bfa_fsm_send_event(device, DEVICE_E_IOC_RESET);
1663 }
1664
1665 static struct bfa_ioc_cbfn bfa_iocll_cbfn = {
1666 bna_device_cb_iocll_ready,
1667 bna_device_cb_iocll_disabled,
1668 bna_device_cb_iocll_failed,
1669 bna_device_cb_iocll_reset
1670 };
1671
1672 /* device */
1673 static void
1674 bna_adv_device_init(struct bna_device *device, struct bna *bna,
1675 struct bna_res_info *res_info)
1676 {
1677 u8 *kva;
1678 u64 dma;
1679
1680 device->bna = bna;
1681
1682 kva = res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.mdl[0].kva;
1683
1684 /**
1685 * Attach common modules (Diag, SFP, CEE, Port) and claim respective
1686 * DMA memory.
1687 */
1688 BNA_GET_DMA_ADDR(
1689 &res_info[BNA_RES_MEM_T_COM].res_u.mem_info.mdl[0].dma, dma);
1690 kva = res_info[BNA_RES_MEM_T_COM].res_u.mem_info.mdl[0].kva;
1691
1692 bfa_nw_cee_attach(&bna->cee, &device->ioc, bna);
1693 bfa_nw_cee_mem_claim(&bna->cee, kva, dma);
1694 kva += bfa_nw_cee_meminfo();
1695 dma += bfa_nw_cee_meminfo();
1696
1697 }
1698
1699 static void
1700 bna_device_init(struct bna_device *device, struct bna *bna,
1701 struct bna_res_info *res_info)
1702 {
1703 u64 dma;
1704
1705 device->bna = bna;
1706
1707 /**
1708 * Attach IOC and claim:
1709 * 1. DMA memory for IOC attributes
1710 * 2. Kernel memory for FW trace
1711 */
1712 bfa_nw_ioc_attach(&device->ioc, device, &bfa_iocll_cbfn);
1713 bfa_nw_ioc_pci_init(&device->ioc, &bna->pcidev, BFI_MC_LL);
1714
1715 BNA_GET_DMA_ADDR(
1716 &res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.mdl[0].dma, dma);
1717 bfa_nw_ioc_mem_claim(&device->ioc,
1718 res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.mdl[0].kva,
1719 dma);
1720
1721 bna_adv_device_init(device, bna, res_info);
1722 /*
1723 * Initialize mbox_mod only after IOC, so that mbox handler
1724 * registration goes through
1725 */
1726 device->intr_type =
1727 res_info[BNA_RES_INTR_T_MBOX].res_u.intr_info.intr_type;
1728 device->vector =
1729 res_info[BNA_RES_INTR_T_MBOX].res_u.intr_info.idl[0].vector;
1730 bna_mbox_mod_init(&bna->mbox_mod, bna);
1731
1732 device->ready_cbfn = device->stop_cbfn = NULL;
1733 device->ready_cbarg = device->stop_cbarg = NULL;
1734
1735 bfa_fsm_set_state(device, bna_device_sm_stopped);
1736 }
1737
1738 static void
1739 bna_device_uninit(struct bna_device *device)
1740 {
1741 bna_mbox_mod_uninit(&device->bna->mbox_mod);
1742
1743 bfa_nw_ioc_detach(&device->ioc);
1744
1745 device->bna = NULL;
1746 }
1747
1748 static void
1749 bna_device_cb_port_stopped(void *arg, enum bna_cb_status status)
1750 {
1751 struct bna_device *device = (struct bna_device *)arg;
1752
1753 bfa_fsm_send_event(device, DEVICE_E_PORT_STOPPED);
1754 }
1755
1756 static int
1757 bna_device_status_get(struct bna_device *device)
1758 {
1759 return device->fsm == (bfa_fsm_t)bna_device_sm_ready;
1760 }
1761
1762 void
1763 bna_device_enable(struct bna_device *device)
1764 {
1765 if (device->fsm != (bfa_fsm_t)bna_device_sm_stopped) {
1766 bnad_cb_device_enabled(device->bna->bnad, BNA_CB_BUSY);
1767 return;
1768 }
1769
1770 device->ready_cbfn = bnad_cb_device_enabled;
1771 device->ready_cbarg = device->bna->bnad;
1772
1773 bfa_fsm_send_event(device, DEVICE_E_ENABLE);
1774 }
1775
1776 void
1777 bna_device_disable(struct bna_device *device, enum bna_cleanup_type type)
1778 {
1779 if (type == BNA_SOFT_CLEANUP) {
1780 bnad_cb_device_disabled(device->bna->bnad, BNA_CB_SUCCESS);
1781 return;
1782 }
1783
1784 device->stop_cbfn = bnad_cb_device_disabled;
1785 device->stop_cbarg = device->bna->bnad;
1786
1787 bfa_fsm_send_event(device, DEVICE_E_DISABLE);
1788 }
1789
1790 static int
1791 bna_device_state_get(struct bna_device *device)
1792 {
1793 return bfa_sm_to_state(device_sm_table, device->fsm);
1794 }
1795
1796 const u32 bna_napi_dim_vector[BNA_LOAD_T_MAX][BNA_BIAS_T_MAX] = {
1797 {12, 12},
1798 {6, 10},
1799 {5, 10},
1800 {4, 8},
1801 {3, 6},
1802 {3, 6},
1803 {2, 4},
1804 {1, 2},
1805 };
1806
1807 /* utils */
1808
1809 static void
1810 bna_adv_res_req(struct bna_res_info *res_info)
1811 {
1812 /* DMA memory for COMMON_MODULE */
1813 res_info[BNA_RES_MEM_T_COM].res_type = BNA_RES_T_MEM;
1814 res_info[BNA_RES_MEM_T_COM].res_u.mem_info.mem_type = BNA_MEM_T_DMA;
1815 res_info[BNA_RES_MEM_T_COM].res_u.mem_info.num = 1;
1816 res_info[BNA_RES_MEM_T_COM].res_u.mem_info.len = ALIGN(
1817 bfa_nw_cee_meminfo(), PAGE_SIZE);
1818
1819 /* Virtual memory for retreiving fw_trc */
1820 res_info[BNA_RES_MEM_T_FWTRC].res_type = BNA_RES_T_MEM;
1821 res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.mem_type = BNA_MEM_T_KVA;
1822 res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.num = 0;
1823 res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.len = 0;
1824
1825 /* DMA memory for retreiving stats */
1826 res_info[BNA_RES_MEM_T_STATS].res_type = BNA_RES_T_MEM;
1827 res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mem_type = BNA_MEM_T_DMA;
1828 res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.num = 1;
1829 res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.len =
1830 ALIGN(BFI_HW_STATS_SIZE, PAGE_SIZE);
1831
1832 /* Virtual memory for soft stats */
1833 res_info[BNA_RES_MEM_T_SWSTATS].res_type = BNA_RES_T_MEM;
1834 res_info[BNA_RES_MEM_T_SWSTATS].res_u.mem_info.mem_type = BNA_MEM_T_KVA;
1835 res_info[BNA_RES_MEM_T_SWSTATS].res_u.mem_info.num = 1;
1836 res_info[BNA_RES_MEM_T_SWSTATS].res_u.mem_info.len =
1837 sizeof(struct bna_sw_stats);
1838 }
1839
1840 static void
1841 bna_sw_stats_get(struct bna *bna, struct bna_sw_stats *sw_stats)
1842 {
1843 struct bna_tx *tx;
1844 struct bna_txq *txq;
1845 struct bna_rx *rx;
1846 struct bna_rxp *rxp;
1847 struct list_head *qe;
1848 struct list_head *txq_qe;
1849 struct list_head *rxp_qe;
1850 struct list_head *mac_qe;
1851 int i;
1852
1853 sw_stats->device_state = bna_device_state_get(&bna->device);
1854 sw_stats->port_state = bna_port_state_get(&bna->port);
1855 sw_stats->port_flags = bna->port.flags;
1856 sw_stats->llport_state = bna_llport_state_get(&bna->port.llport);
1857 sw_stats->priority = bna->port.priority;
1858
1859 i = 0;
1860 list_for_each(qe, &bna->tx_mod.tx_active_q) {
1861 tx = (struct bna_tx *)qe;
1862 sw_stats->tx_stats[i].tx_state = bna_tx_state_get(tx);
1863 sw_stats->tx_stats[i].tx_flags = tx->flags;
1864
1865 sw_stats->tx_stats[i].num_txqs = 0;
1866 sw_stats->tx_stats[i].txq_bmap[0] = 0;
1867 sw_stats->tx_stats[i].txq_bmap[1] = 0;
1868 list_for_each(txq_qe, &tx->txq_q) {
1869 txq = (struct bna_txq *)txq_qe;
1870 if (txq->txq_id < 32)
1871 sw_stats->tx_stats[i].txq_bmap[0] |=
1872 ((u32)1 << txq->txq_id);
1873 else
1874 sw_stats->tx_stats[i].txq_bmap[1] |=
1875 ((u32)
1876 1 << (txq->txq_id - 32));
1877 sw_stats->tx_stats[i].num_txqs++;
1878 }
1879
1880 sw_stats->tx_stats[i].txf_id = tx->txf.txf_id;
1881
1882 i++;
1883 }
1884 sw_stats->num_active_tx = i;
1885
1886 i = 0;
1887 list_for_each(qe, &bna->rx_mod.rx_active_q) {
1888 rx = (struct bna_rx *)qe;
1889 sw_stats->rx_stats[i].rx_state = bna_rx_state_get(rx);
1890 sw_stats->rx_stats[i].rx_flags = rx->rx_flags;
1891
1892 sw_stats->rx_stats[i].num_rxps = 0;
1893 sw_stats->rx_stats[i].num_rxqs = 0;
1894 sw_stats->rx_stats[i].rxq_bmap[0] = 0;
1895 sw_stats->rx_stats[i].rxq_bmap[1] = 0;
1896 sw_stats->rx_stats[i].cq_bmap[0] = 0;
1897 sw_stats->rx_stats[i].cq_bmap[1] = 0;
1898 list_for_each(rxp_qe, &rx->rxp_q) {
1899 rxp = (struct bna_rxp *)rxp_qe;
1900
1901 sw_stats->rx_stats[i].num_rxqs += 1;
1902
1903 if (rxp->type == BNA_RXP_SINGLE) {
1904 if (rxp->rxq.single.only->rxq_id < 32) {
1905 sw_stats->rx_stats[i].rxq_bmap[0] |=
1906 ((u32)1 <<
1907 rxp->rxq.single.only->rxq_id);
1908 } else {
1909 sw_stats->rx_stats[i].rxq_bmap[1] |=
1910 ((u32)1 <<
1911 (rxp->rxq.single.only->rxq_id - 32));
1912 }
1913 } else {
1914 if (rxp->rxq.slr.large->rxq_id < 32) {
1915 sw_stats->rx_stats[i].rxq_bmap[0] |=
1916 ((u32)1 <<
1917 rxp->rxq.slr.large->rxq_id);
1918 } else {
1919 sw_stats->rx_stats[i].rxq_bmap[1] |=
1920 ((u32)1 <<
1921 (rxp->rxq.slr.large->rxq_id - 32));
1922 }
1923
1924 if (rxp->rxq.slr.small->rxq_id < 32) {
1925 sw_stats->rx_stats[i].rxq_bmap[0] |=
1926 ((u32)1 <<
1927 rxp->rxq.slr.small->rxq_id);
1928 } else {
1929 sw_stats->rx_stats[i].rxq_bmap[1] |=
1930 ((u32)1 <<
1931 (rxp->rxq.slr.small->rxq_id - 32));
1932 }
1933 sw_stats->rx_stats[i].num_rxqs += 1;
1934 }
1935
1936 if (rxp->cq.cq_id < 32)
1937 sw_stats->rx_stats[i].cq_bmap[0] |=
1938 (1 << rxp->cq.cq_id);
1939 else
1940 sw_stats->rx_stats[i].cq_bmap[1] |=
1941 (1 << (rxp->cq.cq_id - 32));
1942
1943 sw_stats->rx_stats[i].num_rxps++;
1944 }
1945
1946 sw_stats->rx_stats[i].rxf_id = rx->rxf.rxf_id;
1947 sw_stats->rx_stats[i].rxf_state = bna_rxf_state_get(&rx->rxf);
1948 sw_stats->rx_stats[i].rxf_oper_state = rx->rxf.rxf_oper_state;
1949
1950 sw_stats->rx_stats[i].num_active_ucast = 0;
1951 if (rx->rxf.ucast_active_mac)
1952 sw_stats->rx_stats[i].num_active_ucast++;
1953 list_for_each(mac_qe, &rx->rxf.ucast_active_q)
1954 sw_stats->rx_stats[i].num_active_ucast++;
1955
1956 sw_stats->rx_stats[i].num_active_mcast = 0;
1957 list_for_each(mac_qe, &rx->rxf.mcast_active_q)
1958 sw_stats->rx_stats[i].num_active_mcast++;
1959
1960 sw_stats->rx_stats[i].rxmode_active = rx->rxf.rxmode_active;
1961 sw_stats->rx_stats[i].vlan_filter_status =
1962 rx->rxf.vlan_filter_status;
1963 memcpy(sw_stats->rx_stats[i].vlan_filter_table,
1964 rx->rxf.vlan_filter_table,
1965 sizeof(u32) * ((BFI_MAX_VLAN + 1) / 32));
1966
1967 sw_stats->rx_stats[i].rss_status = rx->rxf.rss_status;
1968 sw_stats->rx_stats[i].hds_status = rx->rxf.hds_status;
1969
1970 i++;
1971 }
1972 sw_stats->num_active_rx = i;
1973 }
1974
1975 static void
1976 bna_fw_cb_stats_get(void *arg, int status)
1977 {
1978 struct bna *bna = (struct bna *)arg;
1979 u64 *p_stats;
1980 int i, count;
1981 int rxf_count, txf_count;
1982 u64 rxf_bmap, txf_bmap;
1983
1984 bfa_q_qe_init(&bna->mbox_qe.qe);
1985
1986 if (status == 0) {
1987 p_stats = (u64 *)bna->stats.hw_stats;
1988 count = sizeof(struct bfi_ll_stats) / sizeof(u64);
1989 for (i = 0; i < count; i++)
1990 p_stats[i] = cpu_to_be64(p_stats[i]);
1991
1992 rxf_count = 0;
1993 rxf_bmap = (u64)bna->stats.rxf_bmap[0] |
1994 ((u64)bna->stats.rxf_bmap[1] << 32);
1995 for (i = 0; i < BFI_LL_RXF_ID_MAX; i++)
1996 if (rxf_bmap & ((u64)1 << i))
1997 rxf_count++;
1998
1999 txf_count = 0;
2000 txf_bmap = (u64)bna->stats.txf_bmap[0] |
2001 ((u64)bna->stats.txf_bmap[1] << 32);
2002 for (i = 0; i < BFI_LL_TXF_ID_MAX; i++)
2003 if (txf_bmap & ((u64)1 << i))
2004 txf_count++;
2005
2006 p_stats = (u64 *)&bna->stats.hw_stats->rxf_stats[0] +
2007 ((rxf_count * sizeof(struct bfi_ll_stats_rxf) +
2008 txf_count * sizeof(struct bfi_ll_stats_txf))/
2009 sizeof(u64));
2010
2011 /* Populate the TXF stats from the firmware DMAed copy */
2012 for (i = (BFI_LL_TXF_ID_MAX - 1); i >= 0; i--)
2013 if (txf_bmap & ((u64)1 << i)) {
2014 p_stats -= sizeof(struct bfi_ll_stats_txf)/
2015 sizeof(u64);
2016 memcpy(&bna->stats.hw_stats->txf_stats[i],
2017 p_stats,
2018 sizeof(struct bfi_ll_stats_txf));
2019 }
2020
2021 /* Populate the RXF stats from the firmware DMAed copy */
2022 for (i = (BFI_LL_RXF_ID_MAX - 1); i >= 0; i--)
2023 if (rxf_bmap & ((u64)1 << i)) {
2024 p_stats -= sizeof(struct bfi_ll_stats_rxf)/
2025 sizeof(u64);
2026 memcpy(&bna->stats.hw_stats->rxf_stats[i],
2027 p_stats,
2028 sizeof(struct bfi_ll_stats_rxf));
2029 }
2030
2031 bna_sw_stats_get(bna, bna->stats.sw_stats);
2032 bnad_cb_stats_get(bna->bnad, BNA_CB_SUCCESS, &bna->stats);
2033 } else
2034 bnad_cb_stats_get(bna->bnad, BNA_CB_FAIL, &bna->stats);
2035 }
2036
2037 static void
2038 bna_fw_stats_get(struct bna *bna)
2039 {
2040 struct bfi_ll_stats_req ll_req;
2041
2042 bfi_h2i_set(ll_req.mh, BFI_MC_LL, BFI_LL_H2I_STATS_GET_REQ, 0);
2043 ll_req.stats_mask = htons(BFI_LL_STATS_ALL);
2044
2045 ll_req.rxf_id_mask[0] = htonl(bna->rx_mod.rxf_bmap[0]);
2046 ll_req.rxf_id_mask[1] = htonl(bna->rx_mod.rxf_bmap[1]);
2047 ll_req.txf_id_mask[0] = htonl(bna->tx_mod.txf_bmap[0]);
2048 ll_req.txf_id_mask[1] = htonl(bna->tx_mod.txf_bmap[1]);
2049
2050 ll_req.host_buffer.a32.addr_hi = bna->hw_stats_dma.msb;
2051 ll_req.host_buffer.a32.addr_lo = bna->hw_stats_dma.lsb;
2052
2053 bna_mbox_qe_fill(&bna->mbox_qe, &ll_req, sizeof(ll_req),
2054 bna_fw_cb_stats_get, bna);
2055 bna_mbox_send(bna, &bna->mbox_qe);
2056
2057 bna->stats.rxf_bmap[0] = bna->rx_mod.rxf_bmap[0];
2058 bna->stats.rxf_bmap[1] = bna->rx_mod.rxf_bmap[1];
2059 bna->stats.txf_bmap[0] = bna->tx_mod.txf_bmap[0];
2060 bna->stats.txf_bmap[1] = bna->tx_mod.txf_bmap[1];
2061 }
2062
2063 void
2064 bna_stats_get(struct bna *bna)
2065 {
2066 if (bna_device_status_get(&bna->device))
2067 bna_fw_stats_get(bna);
2068 else
2069 bnad_cb_stats_get(bna->bnad, BNA_CB_FAIL, &bna->stats);
2070 }
2071
2072 /* IB */
2073 static void
2074 bna_ib_coalescing_timeo_set(struct bna_ib *ib, u8 coalescing_timeo)
2075 {
2076 ib->ib_config.coalescing_timeo = coalescing_timeo;
2077
2078 if (ib->start_count)
2079 ib->door_bell.doorbell_ack = BNA_DOORBELL_IB_INT_ACK(
2080 (u32)ib->ib_config.coalescing_timeo, 0);
2081 }
2082
2083 /* RxF */
2084 void
2085 bna_rxf_adv_init(struct bna_rxf *rxf,
2086 struct bna_rx *rx,
2087 struct bna_rx_config *q_config)
2088 {
2089 switch (q_config->rxp_type) {
2090 case BNA_RXP_SINGLE:
2091 /* No-op */
2092 break;
2093 case BNA_RXP_SLR:
2094 rxf->ctrl_flags |= BNA_RXF_CF_SM_LG_RXQ;
2095 break;
2096 case BNA_RXP_HDS:
2097 rxf->hds_cfg.hdr_type = q_config->hds_config.hdr_type;
2098 rxf->hds_cfg.header_size =
2099 q_config->hds_config.header_size;
2100 rxf->forced_offset = 0;
2101 break;
2102 default:
2103 break;
2104 }
2105
2106 if (q_config->rss_status == BNA_STATUS_T_ENABLED) {
2107 rxf->ctrl_flags |= BNA_RXF_CF_RSS_ENABLE;
2108 rxf->rss_cfg.hash_type = q_config->rss_config.hash_type;
2109 rxf->rss_cfg.hash_mask = q_config->rss_config.hash_mask;
2110 memcpy(&rxf->rss_cfg.toeplitz_hash_key[0],
2111 &q_config->rss_config.toeplitz_hash_key[0],
2112 sizeof(rxf->rss_cfg.toeplitz_hash_key));
2113 }
2114 }
2115
2116 static void
2117 rxf_fltr_mbox_cmd(struct bna_rxf *rxf, u8 cmd, enum bna_status status)
2118 {
2119 struct bfi_ll_rxf_req req;
2120
2121 bfi_h2i_set(req.mh, BFI_MC_LL, cmd, 0);
2122
2123 req.rxf_id = rxf->rxf_id;
2124 req.enable = status;
2125
2126 bna_mbox_qe_fill(&rxf->mbox_qe, &req, sizeof(req),
2127 rxf_cb_cam_fltr_mbox_cmd, rxf);
2128
2129 bna_mbox_send(rxf->rx->bna, &rxf->mbox_qe);
2130 }
2131
2132 int
2133 rxf_process_packet_filter_ucast(struct bna_rxf *rxf)
2134 {
2135 struct bna_mac *mac = NULL;
2136 struct list_head *qe;
2137
2138 /* Add additional MAC entries */
2139 if (!list_empty(&rxf->ucast_pending_add_q)) {
2140 bfa_q_deq(&rxf->ucast_pending_add_q, &qe);
2141 bfa_q_qe_init(qe);
2142 mac = (struct bna_mac *)qe;
2143 rxf_cam_mbox_cmd(rxf, BFI_LL_H2I_MAC_UCAST_ADD_REQ, mac);
2144 list_add_tail(&mac->qe, &rxf->ucast_active_q);
2145 return 1;
2146 }
2147
2148 /* Delete MAC addresses previousely added */
2149 if (!list_empty(&rxf->ucast_pending_del_q)) {
2150 bfa_q_deq(&rxf->ucast_pending_del_q, &qe);
2151 bfa_q_qe_init(qe);
2152 mac = (struct bna_mac *)qe;
2153 rxf_cam_mbox_cmd(rxf, BFI_LL_H2I_MAC_UCAST_DEL_REQ, mac);
2154 bna_ucam_mod_mac_put(&rxf->rx->bna->ucam_mod, mac);
2155 return 1;
2156 }
2157
2158 return 0;
2159 }
2160
2161 int
2162 rxf_process_packet_filter_promisc(struct bna_rxf *rxf)
2163 {
2164 struct bna *bna = rxf->rx->bna;
2165
2166 /* Enable/disable promiscuous mode */
2167 if (is_promisc_enable(rxf->rxmode_pending,
2168 rxf->rxmode_pending_bitmask)) {
2169 /* move promisc configuration from pending -> active */
2170 promisc_inactive(rxf->rxmode_pending,
2171 rxf->rxmode_pending_bitmask);
2172 rxf->rxmode_active |= BNA_RXMODE_PROMISC;
2173
2174 /* Disable VLAN filter to allow all VLANs */
2175 __rxf_vlan_filter_set(rxf, BNA_STATUS_T_DISABLED);
2176 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_RXF_PROMISCUOUS_SET_REQ,
2177 BNA_STATUS_T_ENABLED);
2178 return 1;
2179 } else if (is_promisc_disable(rxf->rxmode_pending,
2180 rxf->rxmode_pending_bitmask)) {
2181 /* move promisc configuration from pending -> active */
2182 promisc_inactive(rxf->rxmode_pending,
2183 rxf->rxmode_pending_bitmask);
2184 rxf->rxmode_active &= ~BNA_RXMODE_PROMISC;
2185 bna->rxf_promisc_id = BFI_MAX_RXF;
2186
2187 /* Revert VLAN filter */
2188 __rxf_vlan_filter_set(rxf, rxf->vlan_filter_status);
2189 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_RXF_PROMISCUOUS_SET_REQ,
2190 BNA_STATUS_T_DISABLED);
2191 return 1;
2192 }
2193
2194 return 0;
2195 }
2196
2197 int
2198 rxf_process_packet_filter_allmulti(struct bna_rxf *rxf)
2199 {
2200 /* Enable/disable allmulti mode */
2201 if (is_allmulti_enable(rxf->rxmode_pending,
2202 rxf->rxmode_pending_bitmask)) {
2203 /* move allmulti configuration from pending -> active */
2204 allmulti_inactive(rxf->rxmode_pending,
2205 rxf->rxmode_pending_bitmask);
2206 rxf->rxmode_active |= BNA_RXMODE_ALLMULTI;
2207
2208 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_MAC_MCAST_FILTER_REQ,
2209 BNA_STATUS_T_ENABLED);
2210 return 1;
2211 } else if (is_allmulti_disable(rxf->rxmode_pending,
2212 rxf->rxmode_pending_bitmask)) {
2213 /* move allmulti configuration from pending -> active */
2214 allmulti_inactive(rxf->rxmode_pending,
2215 rxf->rxmode_pending_bitmask);
2216 rxf->rxmode_active &= ~BNA_RXMODE_ALLMULTI;
2217
2218 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_MAC_MCAST_FILTER_REQ,
2219 BNA_STATUS_T_DISABLED);
2220 return 1;
2221 }
2222
2223 return 0;
2224 }
2225
2226 int
2227 rxf_clear_packet_filter_ucast(struct bna_rxf *rxf)
2228 {
2229 struct bna_mac *mac = NULL;
2230 struct list_head *qe;
2231
2232 /* 1. delete pending ucast entries */
2233 if (!list_empty(&rxf->ucast_pending_del_q)) {
2234 bfa_q_deq(&rxf->ucast_pending_del_q, &qe);
2235 bfa_q_qe_init(qe);
2236 mac = (struct bna_mac *)qe;
2237 rxf_cam_mbox_cmd(rxf, BFI_LL_H2I_MAC_UCAST_DEL_REQ, mac);
2238 bna_ucam_mod_mac_put(&rxf->rx->bna->ucam_mod, mac);
2239 return 1;
2240 }
2241
2242 /* 2. clear active ucast entries; move them to pending_add_q */
2243 if (!list_empty(&rxf->ucast_active_q)) {
2244 bfa_q_deq(&rxf->ucast_active_q, &qe);
2245 bfa_q_qe_init(qe);
2246 mac = (struct bna_mac *)qe;
2247 rxf_cam_mbox_cmd(rxf, BFI_LL_H2I_MAC_UCAST_DEL_REQ, mac);
2248 list_add_tail(&mac->qe, &rxf->ucast_pending_add_q);
2249 return 1;
2250 }
2251
2252 return 0;
2253 }
2254
2255 int
2256 rxf_clear_packet_filter_promisc(struct bna_rxf *rxf)
2257 {
2258 struct bna *bna = rxf->rx->bna;
2259
2260 /* 6. Execute pending promisc mode disable command */
2261 if (is_promisc_disable(rxf->rxmode_pending,
2262 rxf->rxmode_pending_bitmask)) {
2263 /* move promisc configuration from pending -> active */
2264 promisc_inactive(rxf->rxmode_pending,
2265 rxf->rxmode_pending_bitmask);
2266 rxf->rxmode_active &= ~BNA_RXMODE_PROMISC;
2267 bna->rxf_promisc_id = BFI_MAX_RXF;
2268
2269 /* Revert VLAN filter */
2270 __rxf_vlan_filter_set(rxf, rxf->vlan_filter_status);
2271 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_RXF_PROMISCUOUS_SET_REQ,
2272 BNA_STATUS_T_DISABLED);
2273 return 1;
2274 }
2275
2276 /* 7. Clear active promisc mode; move it to pending enable */
2277 if (rxf->rxmode_active & BNA_RXMODE_PROMISC) {
2278 /* move promisc configuration from active -> pending */
2279 promisc_enable(rxf->rxmode_pending,
2280 rxf->rxmode_pending_bitmask);
2281 rxf->rxmode_active &= ~BNA_RXMODE_PROMISC;
2282
2283 /* Revert VLAN filter */
2284 __rxf_vlan_filter_set(rxf, rxf->vlan_filter_status);
2285 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_RXF_PROMISCUOUS_SET_REQ,
2286 BNA_STATUS_T_DISABLED);
2287 return 1;
2288 }
2289
2290 return 0;
2291 }
2292
2293 int
2294 rxf_clear_packet_filter_allmulti(struct bna_rxf *rxf)
2295 {
2296 /* 10. Execute pending allmulti mode disable command */
2297 if (is_allmulti_disable(rxf->rxmode_pending,
2298 rxf->rxmode_pending_bitmask)) {
2299 /* move allmulti configuration from pending -> active */
2300 allmulti_inactive(rxf->rxmode_pending,
2301 rxf->rxmode_pending_bitmask);
2302 rxf->rxmode_active &= ~BNA_RXMODE_ALLMULTI;
2303 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_MAC_MCAST_FILTER_REQ,
2304 BNA_STATUS_T_DISABLED);
2305 return 1;
2306 }
2307
2308 /* 11. Clear active allmulti mode; move it to pending enable */
2309 if (rxf->rxmode_active & BNA_RXMODE_ALLMULTI) {
2310 /* move allmulti configuration from active -> pending */
2311 allmulti_enable(rxf->rxmode_pending,
2312 rxf->rxmode_pending_bitmask);
2313 rxf->rxmode_active &= ~BNA_RXMODE_ALLMULTI;
2314 rxf_fltr_mbox_cmd(rxf, BFI_LL_H2I_MAC_MCAST_FILTER_REQ,
2315 BNA_STATUS_T_DISABLED);
2316 return 1;
2317 }
2318
2319 return 0;
2320 }
2321
2322 void
2323 rxf_reset_packet_filter_ucast(struct bna_rxf *rxf)
2324 {
2325 struct list_head *qe;
2326 struct bna_mac *mac;
2327
2328 /* 1. Move active ucast entries to pending_add_q */
2329 while (!list_empty(&rxf->ucast_active_q)) {
2330 bfa_q_deq(&rxf->ucast_active_q, &qe);
2331 bfa_q_qe_init(qe);
2332 list_add_tail(qe, &rxf->ucast_pending_add_q);
2333 }
2334
2335 /* 2. Throw away delete pending ucast entries */
2336 while (!list_empty(&rxf->ucast_pending_del_q)) {
2337 bfa_q_deq(&rxf->ucast_pending_del_q, &qe);
2338 bfa_q_qe_init(qe);
2339 mac = (struct bna_mac *)qe;
2340 bna_ucam_mod_mac_put(&rxf->rx->bna->ucam_mod, mac);
2341 }
2342 }
2343
2344 void
2345 rxf_reset_packet_filter_promisc(struct bna_rxf *rxf)
2346 {
2347 struct bna *bna = rxf->rx->bna;
2348
2349 /* 6. Clear pending promisc mode disable */
2350 if (is_promisc_disable(rxf->rxmode_pending,
2351 rxf->rxmode_pending_bitmask)) {
2352 promisc_inactive(rxf->rxmode_pending,
2353 rxf->rxmode_pending_bitmask);
2354 rxf->rxmode_active &= ~BNA_RXMODE_PROMISC;
2355 bna->rxf_promisc_id = BFI_MAX_RXF;
2356 }
2357
2358 /* 7. Move promisc mode config from active -> pending */
2359 if (rxf->rxmode_active & BNA_RXMODE_PROMISC) {
2360 promisc_enable(rxf->rxmode_pending,
2361 rxf->rxmode_pending_bitmask);
2362 rxf->rxmode_active &= ~BNA_RXMODE_PROMISC;
2363 }
2364
2365 }
2366
2367 void
2368 rxf_reset_packet_filter_allmulti(struct bna_rxf *rxf)
2369 {
2370 /* 10. Clear pending allmulti mode disable */
2371 if (is_allmulti_disable(rxf->rxmode_pending,
2372 rxf->rxmode_pending_bitmask)) {
2373 allmulti_inactive(rxf->rxmode_pending,
2374 rxf->rxmode_pending_bitmask);
2375 rxf->rxmode_active &= ~BNA_RXMODE_ALLMULTI;
2376 }
2377
2378 /* 11. Move allmulti mode config from active -> pending */
2379 if (rxf->rxmode_active & BNA_RXMODE_ALLMULTI) {
2380 allmulti_enable(rxf->rxmode_pending,
2381 rxf->rxmode_pending_bitmask);
2382 rxf->rxmode_active &= ~BNA_RXMODE_ALLMULTI;
2383 }
2384 }
2385
2386 /**
2387 * Should only be called by bna_rxf_mode_set.
2388 * Helps deciding if h/w configuration is needed or not.
2389 * Returns:
2390 * 0 = no h/w change
2391 * 1 = need h/w change
2392 */
2393 static int
2394 rxf_promisc_enable(struct bna_rxf *rxf)
2395 {
2396 struct bna *bna = rxf->rx->bna;
2397 int ret = 0;
2398
2399 /* There can not be any pending disable command */
2400
2401 /* Do nothing if pending enable or already enabled */
2402 if (is_promisc_enable(rxf->rxmode_pending,
2403 rxf->rxmode_pending_bitmask) ||
2404 (rxf->rxmode_active & BNA_RXMODE_PROMISC)) {
2405 /* Schedule enable */
2406 } else {
2407 /* Promisc mode should not be active in the system */
2408 promisc_enable(rxf->rxmode_pending,
2409 rxf->rxmode_pending_bitmask);
2410 bna->rxf_promisc_id = rxf->rxf_id;
2411 ret = 1;
2412 }
2413
2414 return ret;
2415 }
2416
2417 /**
2418 * Should only be called by bna_rxf_mode_set.
2419 * Helps deciding if h/w configuration is needed or not.
2420 * Returns:
2421 * 0 = no h/w change
2422 * 1 = need h/w change
2423 */
2424 static int
2425 rxf_promisc_disable(struct bna_rxf *rxf)
2426 {
2427 struct bna *bna = rxf->rx->bna;
2428 int ret = 0;
2429
2430 /* There can not be any pending disable */
2431
2432 /* Turn off pending enable command , if any */
2433 if (is_promisc_enable(rxf->rxmode_pending,
2434 rxf->rxmode_pending_bitmask)) {
2435 /* Promisc mode should not be active */
2436 /* system promisc state should be pending */
2437 promisc_inactive(rxf->rxmode_pending,
2438 rxf->rxmode_pending_bitmask);
2439 /* Remove the promisc state from the system */
2440 bna->rxf_promisc_id = BFI_MAX_RXF;
2441
2442 /* Schedule disable */
2443 } else if (rxf->rxmode_active & BNA_RXMODE_PROMISC) {
2444 /* Promisc mode should be active in the system */
2445 promisc_disable(rxf->rxmode_pending,
2446 rxf->rxmode_pending_bitmask);
2447 ret = 1;
2448
2449 /* Do nothing if already disabled */
2450 } else {
2451 }
2452
2453 return ret;
2454 }
2455
2456 /**
2457 * Should only be called by bna_rxf_mode_set.
2458 * Helps deciding if h/w configuration is needed or not.
2459 * Returns:
2460 * 0 = no h/w change
2461 * 1 = need h/w change
2462 */
2463 static int
2464 rxf_allmulti_enable(struct bna_rxf *rxf)
2465 {
2466 int ret = 0;
2467
2468 /* There can not be any pending disable command */
2469
2470 /* Do nothing if pending enable or already enabled */
2471 if (is_allmulti_enable(rxf->rxmode_pending,
2472 rxf->rxmode_pending_bitmask) ||
2473 (rxf->rxmode_active & BNA_RXMODE_ALLMULTI)) {
2474 /* Schedule enable */
2475 } else {
2476 allmulti_enable(rxf->rxmode_pending,
2477 rxf->rxmode_pending_bitmask);
2478 ret = 1;
2479 }
2480
2481 return ret;
2482 }
2483
2484 /**
2485 * Should only be called by bna_rxf_mode_set.
2486 * Helps deciding if h/w configuration is needed or not.
2487 * Returns:
2488 * 0 = no h/w change
2489 * 1 = need h/w change
2490 */
2491 static int
2492 rxf_allmulti_disable(struct bna_rxf *rxf)
2493 {
2494 int ret = 0;
2495
2496 /* There can not be any pending disable */
2497
2498 /* Turn off pending enable command , if any */
2499 if (is_allmulti_enable(rxf->rxmode_pending,
2500 rxf->rxmode_pending_bitmask)) {
2501 /* Allmulti mode should not be active */
2502 allmulti_inactive(rxf->rxmode_pending,
2503 rxf->rxmode_pending_bitmask);
2504
2505 /* Schedule disable */
2506 } else if (rxf->rxmode_active & BNA_RXMODE_ALLMULTI) {
2507 allmulti_disable(rxf->rxmode_pending,
2508 rxf->rxmode_pending_bitmask);
2509 ret = 1;
2510 }
2511
2512 return ret;
2513 }
2514
2515 /* RxF <- bnad */
2516 enum bna_cb_status
2517 bna_rx_mode_set(struct bna_rx *rx, enum bna_rxmode new_mode,
2518 enum bna_rxmode bitmask,
2519 void (*cbfn)(struct bnad *, struct bna_rx *,
2520 enum bna_cb_status))
2521 {
2522 struct bna_rxf *rxf = &rx->rxf;
2523 int need_hw_config = 0;
2524
2525 /* Process the commands */
2526
2527 if (is_promisc_enable(new_mode, bitmask)) {
2528 /* If promisc mode is already enabled elsewhere in the system */
2529 if ((rx->bna->rxf_promisc_id != BFI_MAX_RXF) &&
2530 (rx->bna->rxf_promisc_id != rxf->rxf_id))
2531 goto err_return;
2532 if (rxf_promisc_enable(rxf))
2533 need_hw_config = 1;
2534 } else if (is_promisc_disable(new_mode, bitmask)) {
2535 if (rxf_promisc_disable(rxf))
2536 need_hw_config = 1;
2537 }
2538
2539 if (is_allmulti_enable(new_mode, bitmask)) {
2540 if (rxf_allmulti_enable(rxf))
2541 need_hw_config = 1;
2542 } else if (is_allmulti_disable(new_mode, bitmask)) {
2543 if (rxf_allmulti_disable(rxf))
2544 need_hw_config = 1;
2545 }
2546
2547 /* Trigger h/w if needed */
2548
2549 if (need_hw_config) {
2550 rxf->cam_fltr_cbfn = cbfn;
2551 rxf->cam_fltr_cbarg = rx->bna->bnad;
2552 bfa_fsm_send_event(rxf, RXF_E_CAM_FLTR_MOD);
2553 } else if (cbfn)
2554 (*cbfn)(rx->bna->bnad, rx, BNA_CB_SUCCESS);
2555
2556 return BNA_CB_SUCCESS;
2557
2558 err_return:
2559 return BNA_CB_FAIL;
2560 }
2561
2562 void
2563 /* RxF <- bnad */
2564 bna_rx_vlanfilter_enable(struct bna_rx *rx)
2565 {
2566 struct bna_rxf *rxf = &rx->rxf;
2567
2568 if (rxf->vlan_filter_status == BNA_STATUS_T_DISABLED) {
2569 rxf->rxf_flags |= BNA_RXF_FL_VLAN_CONFIG_PENDING;
2570 rxf->vlan_filter_status = BNA_STATUS_T_ENABLED;
2571 bfa_fsm_send_event(rxf, RXF_E_CAM_FLTR_MOD);
2572 }
2573 }
2574
2575 /* Rx */
2576
2577 /* Rx <- bnad */
2578 void
2579 bna_rx_coalescing_timeo_set(struct bna_rx *rx, int coalescing_timeo)
2580 {
2581 struct bna_rxp *rxp;
2582 struct list_head *qe;
2583
2584 list_for_each(qe, &rx->rxp_q) {
2585 rxp = (struct bna_rxp *)qe;
2586 rxp->cq.ccb->rx_coalescing_timeo = coalescing_timeo;
2587 bna_ib_coalescing_timeo_set(rxp->cq.ib, coalescing_timeo);
2588 }
2589 }
2590
2591 /* Rx <- bnad */
2592 void
2593 bna_rx_dim_reconfig(struct bna *bna, const u32 vector[][BNA_BIAS_T_MAX])
2594 {
2595 int i, j;
2596
2597 for (i = 0; i < BNA_LOAD_T_MAX; i++)
2598 for (j = 0; j < BNA_BIAS_T_MAX; j++)
2599 bna->rx_mod.dim_vector[i][j] = vector[i][j];
2600 }
2601
2602 /* Rx <- bnad */
2603 void
2604 bna_rx_dim_update(struct bna_ccb *ccb)
2605 {
2606 struct bna *bna = ccb->cq->rx->bna;
2607 u32 load, bias;
2608 u32 pkt_rt, small_rt, large_rt;
2609 u8 coalescing_timeo;
2610
2611 if ((ccb->pkt_rate.small_pkt_cnt == 0) &&
2612 (ccb->pkt_rate.large_pkt_cnt == 0))
2613 return;
2614
2615 /* Arrive at preconfigured coalescing timeo value based on pkt rate */
2616
2617 small_rt = ccb->pkt_rate.small_pkt_cnt;
2618 large_rt = ccb->pkt_rate.large_pkt_cnt;
2619
2620 pkt_rt = small_rt + large_rt;
2621
2622 if (pkt_rt < BNA_PKT_RATE_10K)
2623 load = BNA_LOAD_T_LOW_4;
2624 else if (pkt_rt < BNA_PKT_RATE_20K)
2625 load = BNA_LOAD_T_LOW_3;
2626 else if (pkt_rt < BNA_PKT_RATE_30K)
2627 load = BNA_LOAD_T_LOW_2;
2628 else if (pkt_rt < BNA_PKT_RATE_40K)
2629 load = BNA_LOAD_T_LOW_1;
2630 else if (pkt_rt < BNA_PKT_RATE_50K)
2631 load = BNA_LOAD_T_HIGH_1;
2632 else if (pkt_rt < BNA_PKT_RATE_60K)
2633 load = BNA_LOAD_T_HIGH_2;
2634 else if (pkt_rt < BNA_PKT_RATE_80K)
2635 load = BNA_LOAD_T_HIGH_3;
2636 else
2637 load = BNA_LOAD_T_HIGH_4;
2638
2639 if (small_rt > (large_rt << 1))
2640 bias = 0;
2641 else
2642 bias = 1;
2643
2644 ccb->pkt_rate.small_pkt_cnt = 0;
2645 ccb->pkt_rate.large_pkt_cnt = 0;
2646
2647 coalescing_timeo = bna->rx_mod.dim_vector[load][bias];
2648 ccb->rx_coalescing_timeo = coalescing_timeo;
2649
2650 /* Set it to IB */
2651 bna_ib_coalescing_timeo_set(ccb->cq->ib, coalescing_timeo);
2652 }
2653
2654 /* Tx */
2655 /* TX <- bnad */
2656 void
2657 bna_tx_coalescing_timeo_set(struct bna_tx *tx, int coalescing_timeo)
2658 {
2659 struct bna_txq *txq;
2660 struct list_head *qe;
2661
2662 list_for_each(qe, &tx->txq_q) {
2663 txq = (struct bna_txq *)qe;
2664 bna_ib_coalescing_timeo_set(txq->ib, coalescing_timeo);
2665 }
2666 }
2667
2668 /*
2669 * Private data
2670 */
2671
2672 struct bna_ritseg_pool_cfg {
2673 u32 pool_size;
2674 u32 pool_entry_size;
2675 };
2676 init_ritseg_pool(ritseg_pool_cfg);
2677
2678 /*
2679 * Private functions
2680 */
2681 static void
2682 bna_ucam_mod_init(struct bna_ucam_mod *ucam_mod, struct bna *bna,
2683 struct bna_res_info *res_info)
2684 {
2685 int i;
2686
2687 ucam_mod->ucmac = (struct bna_mac *)
2688 res_info[BNA_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.mdl[0].kva;
2689
2690 INIT_LIST_HEAD(&ucam_mod->free_q);
2691 for (i = 0; i < BFI_MAX_UCMAC; i++) {
2692 bfa_q_qe_init(&ucam_mod->ucmac[i].qe);
2693 list_add_tail(&ucam_mod->ucmac[i].qe, &ucam_mod->free_q);
2694 }
2695
2696 ucam_mod->bna = bna;
2697 }
2698
2699 static void
2700 bna_ucam_mod_uninit(struct bna_ucam_mod *ucam_mod)
2701 {
2702 struct list_head *qe;
2703 int i = 0;
2704
2705 list_for_each(qe, &ucam_mod->free_q)
2706 i++;
2707
2708 ucam_mod->bna = NULL;
2709 }
2710
2711 static void
2712 bna_mcam_mod_init(struct bna_mcam_mod *mcam_mod, struct bna *bna,
2713 struct bna_res_info *res_info)
2714 {
2715 int i;
2716
2717 mcam_mod->mcmac = (struct bna_mac *)
2718 res_info[BNA_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.mdl[0].kva;
2719
2720 INIT_LIST_HEAD(&mcam_mod->free_q);
2721 for (i = 0; i < BFI_MAX_MCMAC; i++) {
2722 bfa_q_qe_init(&mcam_mod->mcmac[i].qe);
2723 list_add_tail(&mcam_mod->mcmac[i].qe, &mcam_mod->free_q);
2724 }
2725
2726 mcam_mod->bna = bna;
2727 }
2728
2729 static void
2730 bna_mcam_mod_uninit(struct bna_mcam_mod *mcam_mod)
2731 {
2732 struct list_head *qe;
2733 int i = 0;
2734
2735 list_for_each(qe, &mcam_mod->free_q)
2736 i++;
2737
2738 mcam_mod->bna = NULL;
2739 }
2740
2741 static void
2742 bna_rit_mod_init(struct bna_rit_mod *rit_mod,
2743 struct bna_res_info *res_info)
2744 {
2745 int i;
2746 int j;
2747 int count;
2748 int offset;
2749
2750 rit_mod->rit = (struct bna_rit_entry *)
2751 res_info[BNA_RES_MEM_T_RIT_ENTRY].res_u.mem_info.mdl[0].kva;
2752 rit_mod->rit_segment = (struct bna_rit_segment *)
2753 res_info[BNA_RES_MEM_T_RIT_SEGMENT].res_u.mem_info.mdl[0].kva;
2754
2755 count = 0;
2756 offset = 0;
2757 for (i = 0; i < BFI_RIT_SEG_TOTAL_POOLS; i++) {
2758 INIT_LIST_HEAD(&rit_mod->rit_seg_pool[i]);
2759 for (j = 0; j < ritseg_pool_cfg[i].pool_size; j++) {
2760 bfa_q_qe_init(&rit_mod->rit_segment[count].qe);
2761 rit_mod->rit_segment[count].max_rit_size =
2762 ritseg_pool_cfg[i].pool_entry_size;
2763 rit_mod->rit_segment[count].rit_offset = offset;
2764 rit_mod->rit_segment[count].rit =
2765 &rit_mod->rit[offset];
2766 list_add_tail(&rit_mod->rit_segment[count].qe,
2767 &rit_mod->rit_seg_pool[i]);
2768 count++;
2769 offset += ritseg_pool_cfg[i].pool_entry_size;
2770 }
2771 }
2772 }
2773
2774 /*
2775 * Public functions
2776 */
2777
2778 /* Called during probe(), before calling bna_init() */
2779 void
2780 bna_res_req(struct bna_res_info *res_info)
2781 {
2782 bna_adv_res_req(res_info);
2783
2784 /* DMA memory for retrieving IOC attributes */
2785 res_info[BNA_RES_MEM_T_ATTR].res_type = BNA_RES_T_MEM;
2786 res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.mem_type = BNA_MEM_T_DMA;
2787 res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.num = 1;
2788 res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.len =
2789 ALIGN(bfa_nw_ioc_meminfo(), PAGE_SIZE);
2790
2791 /* DMA memory for index segment of an IB */
2792 res_info[BNA_RES_MEM_T_IBIDX].res_type = BNA_RES_T_MEM;
2793 res_info[BNA_RES_MEM_T_IBIDX].res_u.mem_info.mem_type = BNA_MEM_T_DMA;
2794 res_info[BNA_RES_MEM_T_IBIDX].res_u.mem_info.len =
2795 BFI_IBIDX_SIZE * BFI_IBIDX_MAX_SEGSIZE;
2796 res_info[BNA_RES_MEM_T_IBIDX].res_u.mem_info.num = BFI_MAX_IB;
2797
2798 /* Virtual memory for IB objects - stored by IB module */
2799 res_info[BNA_RES_MEM_T_IB_ARRAY].res_type = BNA_RES_T_MEM;
2800 res_info[BNA_RES_MEM_T_IB_ARRAY].res_u.mem_info.mem_type =
2801 BNA_MEM_T_KVA;
2802 res_info[BNA_RES_MEM_T_IB_ARRAY].res_u.mem_info.num = 1;
2803 res_info[BNA_RES_MEM_T_IB_ARRAY].res_u.mem_info.len =
2804 BFI_MAX_IB * sizeof(struct bna_ib);
2805
2806 /* Virtual memory for intr objects - stored by IB module */
2807 res_info[BNA_RES_MEM_T_INTR_ARRAY].res_type = BNA_RES_T_MEM;
2808 res_info[BNA_RES_MEM_T_INTR_ARRAY].res_u.mem_info.mem_type =
2809 BNA_MEM_T_KVA;
2810 res_info[BNA_RES_MEM_T_INTR_ARRAY].res_u.mem_info.num = 1;
2811 res_info[BNA_RES_MEM_T_INTR_ARRAY].res_u.mem_info.len =
2812 BFI_MAX_IB * sizeof(struct bna_intr);
2813
2814 /* Virtual memory for idx_seg objects - stored by IB module */
2815 res_info[BNA_RES_MEM_T_IDXSEG_ARRAY].res_type = BNA_RES_T_MEM;
2816 res_info[BNA_RES_MEM_T_IDXSEG_ARRAY].res_u.mem_info.mem_type =
2817 BNA_MEM_T_KVA;
2818 res_info[BNA_RES_MEM_T_IDXSEG_ARRAY].res_u.mem_info.num = 1;
2819 res_info[BNA_RES_MEM_T_IDXSEG_ARRAY].res_u.mem_info.len =
2820 BFI_IBIDX_TOTAL_SEGS * sizeof(struct bna_ibidx_seg);
2821
2822 /* Virtual memory for Tx objects - stored by Tx module */
2823 res_info[BNA_RES_MEM_T_TX_ARRAY].res_type = BNA_RES_T_MEM;
2824 res_info[BNA_RES_MEM_T_TX_ARRAY].res_u.mem_info.mem_type =
2825 BNA_MEM_T_KVA;
2826 res_info[BNA_RES_MEM_T_TX_ARRAY].res_u.mem_info.num = 1;
2827 res_info[BNA_RES_MEM_T_TX_ARRAY].res_u.mem_info.len =
2828 BFI_MAX_TXQ * sizeof(struct bna_tx);
2829
2830 /* Virtual memory for TxQ - stored by Tx module */
2831 res_info[BNA_RES_MEM_T_TXQ_ARRAY].res_type = BNA_RES_T_MEM;
2832 res_info[BNA_RES_MEM_T_TXQ_ARRAY].res_u.mem_info.mem_type =
2833 BNA_MEM_T_KVA;
2834 res_info[BNA_RES_MEM_T_TXQ_ARRAY].res_u.mem_info.num = 1;
2835 res_info[BNA_RES_MEM_T_TXQ_ARRAY].res_u.mem_info.len =
2836 BFI_MAX_TXQ * sizeof(struct bna_txq);
2837
2838 /* Virtual memory for Rx objects - stored by Rx module */
2839 res_info[BNA_RES_MEM_T_RX_ARRAY].res_type = BNA_RES_T_MEM;
2840 res_info[BNA_RES_MEM_T_RX_ARRAY].res_u.mem_info.mem_type =
2841 BNA_MEM_T_KVA;
2842 res_info[BNA_RES_MEM_T_RX_ARRAY].res_u.mem_info.num = 1;
2843 res_info[BNA_RES_MEM_T_RX_ARRAY].res_u.mem_info.len =
2844 BFI_MAX_RXQ * sizeof(struct bna_rx);
2845
2846 /* Virtual memory for RxPath - stored by Rx module */
2847 res_info[BNA_RES_MEM_T_RXP_ARRAY].res_type = BNA_RES_T_MEM;
2848 res_info[BNA_RES_MEM_T_RXP_ARRAY].res_u.mem_info.mem_type =
2849 BNA_MEM_T_KVA;
2850 res_info[BNA_RES_MEM_T_RXP_ARRAY].res_u.mem_info.num = 1;
2851 res_info[BNA_RES_MEM_T_RXP_ARRAY].res_u.mem_info.len =
2852 BFI_MAX_RXQ * sizeof(struct bna_rxp);
2853
2854 /* Virtual memory for RxQ - stored by Rx module */
2855 res_info[BNA_RES_MEM_T_RXQ_ARRAY].res_type = BNA_RES_T_MEM;
2856 res_info[BNA_RES_MEM_T_RXQ_ARRAY].res_u.mem_info.mem_type =
2857 BNA_MEM_T_KVA;
2858 res_info[BNA_RES_MEM_T_RXQ_ARRAY].res_u.mem_info.num = 1;
2859 res_info[BNA_RES_MEM_T_RXQ_ARRAY].res_u.mem_info.len =
2860 BFI_MAX_RXQ * sizeof(struct bna_rxq);
2861
2862 /* Virtual memory for Unicast MAC address - stored by ucam module */
2863 res_info[BNA_RES_MEM_T_UCMAC_ARRAY].res_type = BNA_RES_T_MEM;
2864 res_info[BNA_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.mem_type =
2865 BNA_MEM_T_KVA;
2866 res_info[BNA_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.num = 1;
2867 res_info[BNA_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.len =
2868 BFI_MAX_UCMAC * sizeof(struct bna_mac);
2869
2870 /* Virtual memory for Multicast MAC address - stored by mcam module */
2871 res_info[BNA_RES_MEM_T_MCMAC_ARRAY].res_type = BNA_RES_T_MEM;
2872 res_info[BNA_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.mem_type =
2873 BNA_MEM_T_KVA;
2874 res_info[BNA_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.num = 1;
2875 res_info[BNA_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.len =
2876 BFI_MAX_MCMAC * sizeof(struct bna_mac);
2877
2878 /* Virtual memory for RIT entries */
2879 res_info[BNA_RES_MEM_T_RIT_ENTRY].res_type = BNA_RES_T_MEM;
2880 res_info[BNA_RES_MEM_T_RIT_ENTRY].res_u.mem_info.mem_type =
2881 BNA_MEM_T_KVA;
2882 res_info[BNA_RES_MEM_T_RIT_ENTRY].res_u.mem_info.num = 1;
2883 res_info[BNA_RES_MEM_T_RIT_ENTRY].res_u.mem_info.len =
2884 BFI_MAX_RIT_SIZE * sizeof(struct bna_rit_entry);
2885
2886 /* Virtual memory for RIT segment table */
2887 res_info[BNA_RES_MEM_T_RIT_SEGMENT].res_type = BNA_RES_T_MEM;
2888 res_info[BNA_RES_MEM_T_RIT_SEGMENT].res_u.mem_info.mem_type =
2889 BNA_MEM_T_KVA;
2890 res_info[BNA_RES_MEM_T_RIT_SEGMENT].res_u.mem_info.num = 1;
2891 res_info[BNA_RES_MEM_T_RIT_SEGMENT].res_u.mem_info.len =
2892 BFI_RIT_TOTAL_SEGS * sizeof(struct bna_rit_segment);
2893
2894 /* Interrupt resource for mailbox interrupt */
2895 res_info[BNA_RES_INTR_T_MBOX].res_type = BNA_RES_T_INTR;
2896 res_info[BNA_RES_INTR_T_MBOX].res_u.intr_info.intr_type =
2897 BNA_INTR_T_MSIX;
2898 res_info[BNA_RES_INTR_T_MBOX].res_u.intr_info.num = 1;
2899 }
2900
2901 /* Called during probe() */
2902 void
2903 bna_init(struct bna *bna, struct bnad *bnad, struct bfa_pcidev *pcidev,
2904 struct bna_res_info *res_info)
2905 {
2906 bna->bnad = bnad;
2907 bna->pcidev = *pcidev;
2908
2909 bna->stats.hw_stats = (struct bfi_ll_stats *)
2910 res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mdl[0].kva;
2911 bna->hw_stats_dma.msb =
2912 res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mdl[0].dma.msb;
2913 bna->hw_stats_dma.lsb =
2914 res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mdl[0].dma.lsb;
2915 bna->stats.sw_stats = (struct bna_sw_stats *)
2916 res_info[BNA_RES_MEM_T_SWSTATS].res_u.mem_info.mdl[0].kva;
2917
2918 bna->regs.page_addr = bna->pcidev.pci_bar_kva +
2919 reg_offset[bna->pcidev.pci_func].page_addr;
2920 bna->regs.fn_int_status = bna->pcidev.pci_bar_kva +
2921 reg_offset[bna->pcidev.pci_func].fn_int_status;
2922 bna->regs.fn_int_mask = bna->pcidev.pci_bar_kva +
2923 reg_offset[bna->pcidev.pci_func].fn_int_mask;
2924
2925 if (bna->pcidev.pci_func < 3)
2926 bna->port_num = 0;
2927 else
2928 bna->port_num = 1;
2929
2930 /* Also initializes diag, cee, sfp, phy_port and mbox_mod */
2931 bna_device_init(&bna->device, bna, res_info);
2932
2933 bna_port_init(&bna->port, bna);
2934
2935 bna_tx_mod_init(&bna->tx_mod, bna, res_info);
2936
2937 bna_rx_mod_init(&bna->rx_mod, bna, res_info);
2938
2939 bna_ib_mod_init(&bna->ib_mod, bna, res_info);
2940
2941 bna_rit_mod_init(&bna->rit_mod, res_info);
2942
2943 bna_ucam_mod_init(&bna->ucam_mod, bna, res_info);
2944
2945 bna_mcam_mod_init(&bna->mcam_mod, bna, res_info);
2946
2947 bna->rxf_promisc_id = BFI_MAX_RXF;
2948
2949 /* Mbox q element for posting stat request to f/w */
2950 bfa_q_qe_init(&bna->mbox_qe.qe);
2951 }
2952
2953 void
2954 bna_uninit(struct bna *bna)
2955 {
2956 bna_mcam_mod_uninit(&bna->mcam_mod);
2957
2958 bna_ucam_mod_uninit(&bna->ucam_mod);
2959
2960 bna_ib_mod_uninit(&bna->ib_mod);
2961
2962 bna_rx_mod_uninit(&bna->rx_mod);
2963
2964 bna_tx_mod_uninit(&bna->tx_mod);
2965
2966 bna_port_uninit(&bna->port);
2967
2968 bna_device_uninit(&bna->device);
2969
2970 bna->bnad = NULL;
2971 }
2972
2973 struct bna_mac *
2974 bna_ucam_mod_mac_get(struct bna_ucam_mod *ucam_mod)
2975 {
2976 struct list_head *qe;
2977
2978 if (list_empty(&ucam_mod->free_q))
2979 return NULL;
2980
2981 bfa_q_deq(&ucam_mod->free_q, &qe);
2982
2983 return (struct bna_mac *)qe;
2984 }
2985
2986 void
2987 bna_ucam_mod_mac_put(struct bna_ucam_mod *ucam_mod, struct bna_mac *mac)
2988 {
2989 list_add_tail(&mac->qe, &ucam_mod->free_q);
2990 }
2991
2992 struct bna_mac *
2993 bna_mcam_mod_mac_get(struct bna_mcam_mod *mcam_mod)
2994 {
2995 struct list_head *qe;
2996
2997 if (list_empty(&mcam_mod->free_q))
2998 return NULL;
2999
3000 bfa_q_deq(&mcam_mod->free_q, &qe);
3001
3002 return (struct bna_mac *)qe;
3003 }
3004
3005 void
3006 bna_mcam_mod_mac_put(struct bna_mcam_mod *mcam_mod, struct bna_mac *mac)
3007 {
3008 list_add_tail(&mac->qe, &mcam_mod->free_q);
3009 }
3010
3011 /**
3012 * Note: This should be called in the same locking context as the call to
3013 * bna_rit_mod_seg_get()
3014 */
3015 int
3016 bna_rit_mod_can_satisfy(struct bna_rit_mod *rit_mod, int seg_size)
3017 {
3018 int i;
3019
3020 /* Select the pool for seg_size */
3021 for (i = 0; i < BFI_RIT_SEG_TOTAL_POOLS; i++) {
3022 if (seg_size <= ritseg_pool_cfg[i].pool_entry_size)
3023 break;
3024 }
3025
3026 if (i == BFI_RIT_SEG_TOTAL_POOLS)
3027 return 0;
3028
3029 if (list_empty(&rit_mod->rit_seg_pool[i]))
3030 return 0;
3031
3032 return 1;
3033 }
3034
3035 struct bna_rit_segment *
3036 bna_rit_mod_seg_get(struct bna_rit_mod *rit_mod, int seg_size)
3037 {
3038 struct bna_rit_segment *seg;
3039 struct list_head *qe;
3040 int i;
3041
3042 /* Select the pool for seg_size */
3043 for (i = 0; i < BFI_RIT_SEG_TOTAL_POOLS; i++) {
3044 if (seg_size <= ritseg_pool_cfg[i].pool_entry_size)
3045 break;
3046 }
3047
3048 if (i == BFI_RIT_SEG_TOTAL_POOLS)
3049 return NULL;
3050
3051 if (list_empty(&rit_mod->rit_seg_pool[i]))
3052 return NULL;
3053
3054 bfa_q_deq(&rit_mod->rit_seg_pool[i], &qe);
3055 seg = (struct bna_rit_segment *)qe;
3056 bfa_q_qe_init(&seg->qe);
3057 seg->rit_size = seg_size;
3058
3059 return seg;
3060 }
3061
3062 void
3063 bna_rit_mod_seg_put(struct bna_rit_mod *rit_mod,
3064 struct bna_rit_segment *seg)
3065 {
3066 int i;
3067
3068 /* Select the pool for seg->max_rit_size */
3069 for (i = 0; i < BFI_RIT_SEG_TOTAL_POOLS; i++) {
3070 if (seg->max_rit_size == ritseg_pool_cfg[i].pool_entry_size)
3071 break;
3072 }
3073
3074 seg->rit_size = 0;
3075 list_add_tail(&seg->qe, &rit_mod->rit_seg_pool[i]);
3076 }
kernel-based virtual machine