1
2
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4
5
6#include <linux/init.h>
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/pci.h>
10#include <linux/device.h>
11#include <linux/highmem.h>
12#include <linux/crc32.h>
13#include <linux/interrupt.h>
14#include <linux/list.h>
15#include <linux/kthread.h>
16#include <linux/phylink.h>
17#include <scsi/libfc.h>
18#include <scsi/scsi_host.h>
19#include <scsi/fc_frame.h>
20#include <linux/if_ether.h>
21#include <linux/if_vlan.h>
22#include <linux/cpu.h>
23#include "qedf.h"
24#include "qedf_dbg.h"
25#include <uapi/linux/pci_regs.h>
26
27const struct qed_fcoe_ops *qed_ops;
28
29static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id);
30static void qedf_remove(struct pci_dev *pdev);
31static void qedf_shutdown(struct pci_dev *pdev);
32static void qedf_schedule_recovery_handler(void *dev);
33static void qedf_recovery_handler(struct work_struct *work);
34
35
36
37
38static unsigned int qedf_dev_loss_tmo = 60;
39module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
40MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
41 "remote ports (default 60)");
42
43uint qedf_debug = QEDF_LOG_INFO;
44module_param_named(debug, qedf_debug, uint, S_IRUGO|S_IWUSR);
45MODULE_PARM_DESC(debug, " Debug mask. Pass '1' to enable default debugging"
46 " mask");
47
48static uint qedf_fipvlan_retries = 60;
49module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
50MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
51 "before giving up (default 60)");
52
53static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
54module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
55MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
56 "(default 1002).");
57
58static int qedf_default_prio = -1;
59module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
60MODULE_PARM_DESC(default_prio, " Override 802.1q priority for FIP and FCoE"
61 " traffic (value between 0 and 7, default 3).");
62
63uint qedf_dump_frames;
64module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
65MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
66 "(default off)");
67
68static uint qedf_queue_depth;
69module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
70MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
71 "by the qedf driver. Default is 0 (use OS default).");
72
73uint qedf_io_tracing;
74module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
75MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
76 "into trace buffer. (default off).");
77
78static uint qedf_max_lun = MAX_FIBRE_LUNS;
79module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
80MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
81 "supports. (default 0xffffffff)");
82
83uint qedf_link_down_tmo;
84module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
85MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
86 "link is down by N seconds.");
87
88bool qedf_retry_delay;
89module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
90MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
91 "delay handling (default off).");
92
93static bool qedf_dcbx_no_wait;
94module_param_named(dcbx_no_wait, qedf_dcbx_no_wait, bool, S_IRUGO | S_IWUSR);
95MODULE_PARM_DESC(dcbx_no_wait, " Do not wait for DCBX convergence to start "
96 "sending FIP VLAN requests on link up (Default: off).");
97
98static uint qedf_dp_module;
99module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
100MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
101 "qed module during probe.");
102
103static uint qedf_dp_level = QED_LEVEL_NOTICE;
104module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
105MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
106 "during probe (0-3: 0 more verbose).");
107
108static bool qedf_enable_recovery = true;
109module_param_named(enable_recovery, qedf_enable_recovery,
110 bool, S_IRUGO | S_IWUSR);
111MODULE_PARM_DESC(enable_recovery, "Enable/disable recovery on driver/firmware "
112 "interface level errors 0 = Disabled, 1 = Enabled (Default: 1).");
113
114struct workqueue_struct *qedf_io_wq;
115
116static struct fcoe_percpu_s qedf_global;
117static DEFINE_SPINLOCK(qedf_global_lock);
118
119static struct kmem_cache *qedf_io_work_cache;
120
121void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
122{
123 int vlan_id_tmp = 0;
124
125 vlan_id_tmp = vlan_id | (qedf->prio << VLAN_PRIO_SHIFT);
126 qedf->vlan_id = vlan_id_tmp;
127 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
128 "Setting vlan_id=0x%04x prio=%d.\n",
129 vlan_id_tmp, qedf->prio);
130}
131
132
133static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
134{
135
136 while (qedf->fipvlan_retries--) {
137
138 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
139 QEDF_ERR(&qedf->dbg_ctx, "Link not up.\n");
140 return false;
141 }
142
143 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
144 QEDF_ERR(&qedf->dbg_ctx, "Driver unloading.\n");
145 return false;
146 }
147
148 if (qedf->vlan_id > 0) {
149 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
150 "vlan = 0x%x already set, calling ctlr_link_up.\n",
151 qedf->vlan_id);
152 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
153 fcoe_ctlr_link_up(&qedf->ctlr);
154 return true;
155 }
156
157 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
158 "Retry %d.\n", qedf->fipvlan_retries);
159 init_completion(&qedf->fipvlan_compl);
160 qedf_fcoe_send_vlan_req(qedf);
161 wait_for_completion_timeout(&qedf->fipvlan_compl, 1 * HZ);
162 }
163
164 return false;
165}
166
167static void qedf_handle_link_update(struct work_struct *work)
168{
169 struct qedf_ctx *qedf =
170 container_of(work, struct qedf_ctx, link_update.work);
171 int rc;
172
173 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Entered. link_state=%d.\n",
174 atomic_read(&qedf->link_state));
175
176 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
177 rc = qedf_initiate_fipvlan_req(qedf);
178 if (rc)
179 return;
180
181 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
182 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
183 "Link is down, resetting vlan_id.\n");
184 qedf->vlan_id = 0;
185 return;
186 }
187
188
189
190
191
192
193 QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
194 "response, falling back to default VLAN %d.\n",
195 qedf_fallback_vlan);
196 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
197
198
199
200
201
202 eth_zero_addr(qedf->data_src_addr);
203 fcoe_ctlr_link_up(&qedf->ctlr);
204 } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
205
206
207
208
209
210 atomic_set(&qedf->link_down_tmo_valid, 0);
211 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
212 "Calling fcoe_ctlr_link_down().\n");
213 fcoe_ctlr_link_down(&qedf->ctlr);
214 if (qedf_wait_for_upload(qedf) == false)
215 QEDF_ERR(&qedf->dbg_ctx,
216 "Could not upload all sessions.\n");
217
218 qedf->fipvlan_retries = qedf_fipvlan_retries;
219 }
220}
221
222#define QEDF_FCOE_MAC_METHOD_GRANGED_MAC 1
223#define QEDF_FCOE_MAC_METHOD_FCF_MAP 2
224#define QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC 3
225static void qedf_set_data_src_addr(struct qedf_ctx *qedf, struct fc_frame *fp)
226{
227 u8 *granted_mac;
228 struct fc_frame_header *fh = fc_frame_header_get(fp);
229 u8 fc_map[3];
230 int method = 0;
231
232
233 granted_mac = fr_cb(fp)->granted_mac;
234
235
236
237
238
239
240
241
242
243
244
245 if (!is_zero_ether_addr(granted_mac)) {
246 ether_addr_copy(qedf->data_src_addr, granted_mac);
247 method = QEDF_FCOE_MAC_METHOD_GRANGED_MAC;
248 } else if (qedf->ctlr.sel_fcf->fc_map != 0) {
249 hton24(fc_map, qedf->ctlr.sel_fcf->fc_map);
250 qedf->data_src_addr[0] = fc_map[0];
251 qedf->data_src_addr[1] = fc_map[1];
252 qedf->data_src_addr[2] = fc_map[2];
253 qedf->data_src_addr[3] = fh->fh_d_id[0];
254 qedf->data_src_addr[4] = fh->fh_d_id[1];
255 qedf->data_src_addr[5] = fh->fh_d_id[2];
256 method = QEDF_FCOE_MAC_METHOD_FCF_MAP;
257 } else {
258 fc_fcoe_set_mac(qedf->data_src_addr, fh->fh_d_id);
259 method = QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC;
260 }
261
262 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
263 "QEDF data_src_mac=%pM method=%d.\n", qedf->data_src_addr, method);
264}
265
266static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
267 void *arg)
268{
269 struct fc_exch *exch = fc_seq_exch(seq);
270 struct fc_lport *lport = exch->lp;
271 struct qedf_ctx *qedf = lport_priv(lport);
272
273 if (!qedf) {
274 QEDF_ERR(NULL, "qedf is NULL.\n");
275 return;
276 }
277
278
279
280
281
282 if (IS_ERR(fp)) {
283 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
284 "fp has IS_ERR() set.\n");
285 goto skip_stat;
286 }
287
288
289 if (fc_frame_payload_op(fp) == ELS_LS_RJT)
290 qedf->flogi_failed++;
291 else if (fc_frame_payload_op(fp) == ELS_LS_ACC) {
292
293 qedf_set_data_src_addr(qedf, fp);
294 qedf->flogi_pending = 0;
295 }
296
297
298 complete(&qedf->flogi_compl);
299
300skip_stat:
301
302 fc_lport_flogi_resp(seq, fp, lport);
303}
304
305static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
306 struct fc_frame *fp, unsigned int op,
307 void (*resp)(struct fc_seq *,
308 struct fc_frame *,
309 void *),
310 void *arg, u32 timeout)
311{
312 struct qedf_ctx *qedf = lport_priv(lport);
313
314
315
316
317
318 if (resp == fc_lport_flogi_resp) {
319 qedf->flogi_cnt++;
320 if (qedf->flogi_pending >= QEDF_FLOGI_RETRY_CNT) {
321 schedule_delayed_work(&qedf->stag_work, 2);
322 return NULL;
323 }
324 qedf->flogi_pending++;
325 return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
326 arg, timeout);
327 }
328
329 return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
330}
331
332int qedf_send_flogi(struct qedf_ctx *qedf)
333{
334 struct fc_lport *lport;
335 struct fc_frame *fp;
336
337 lport = qedf->lport;
338
339 if (!lport->tt.elsct_send) {
340 QEDF_ERR(&qedf->dbg_ctx, "tt.elsct_send not set.\n");
341 return -EINVAL;
342 }
343
344 fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
345 if (!fp) {
346 QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
347 return -ENOMEM;
348 }
349
350 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
351 "Sending FLOGI to reestablish session with switch.\n");
352 lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
353 ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
354
355 init_completion(&qedf->flogi_compl);
356
357 return 0;
358}
359
360
361
362
363
364
365static void qedf_link_recovery(struct work_struct *work)
366{
367 struct qedf_ctx *qedf =
368 container_of(work, struct qedf_ctx, link_recovery.work);
369 struct fc_lport *lport = qedf->lport;
370 struct fc_rport_priv *rdata;
371 bool rc;
372 int retries = 30;
373 int rval, i;
374 struct list_head rdata_login_list;
375
376 INIT_LIST_HEAD(&rdata_login_list);
377
378 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
379 "Link down tmo did not expire.\n");
380
381
382
383
384
385 qedf->ctlr.state = FIP_ST_LINK_WAIT;
386 fcoe_ctlr_link_down(&qedf->ctlr);
387
388
389
390
391
392 fcoe_ctlr_link_up(&qedf->ctlr);
393
394
395 qedf->fipvlan_retries = qedf_fipvlan_retries;
396 rc = qedf_initiate_fipvlan_req(qedf);
397
398 if (!rc)
399 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
400
401
402
403
404
405 while (retries > 0) {
406 if (qedf->ctlr.sel_fcf) {
407 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
408 "FCF reselected, proceeding with FLOGI.\n");
409 break;
410 }
411 msleep(500);
412 retries--;
413 }
414
415 if (retries < 1) {
416 QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
417 "FCF selection.\n");
418 return;
419 }
420
421 rval = qedf_send_flogi(qedf);
422 if (rval)
423 return;
424
425
426 i = wait_for_completion_timeout(&qedf->flogi_compl,
427 qedf->lport->r_a_tov);
428 if (i == 0) {
429 QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
430 return;
431 }
432
433
434
435
436
437 mutex_lock(&lport->disc.disc_mutex);
438 list_for_each_entry_rcu(rdata, &lport->disc.rports, peers) {
439 if (kref_get_unless_zero(&rdata->kref)) {
440 fc_rport_login(rdata);
441 kref_put(&rdata->kref, fc_rport_destroy);
442 }
443 }
444 mutex_unlock(&lport->disc.disc_mutex);
445}
446
447static void qedf_update_link_speed(struct qedf_ctx *qedf,
448 struct qed_link_output *link)
449{
450 __ETHTOOL_DECLARE_LINK_MODE_MASK(sup_caps);
451 struct fc_lport *lport = qedf->lport;
452
453 lport->link_speed = FC_PORTSPEED_UNKNOWN;
454 lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
455
456
457 switch (link->speed) {
458 case 10000:
459 lport->link_speed = FC_PORTSPEED_10GBIT;
460 break;
461 case 25000:
462 lport->link_speed = FC_PORTSPEED_25GBIT;
463 break;
464 case 40000:
465 lport->link_speed = FC_PORTSPEED_40GBIT;
466 break;
467 case 50000:
468 lport->link_speed = FC_PORTSPEED_50GBIT;
469 break;
470 case 100000:
471 lport->link_speed = FC_PORTSPEED_100GBIT;
472 break;
473 case 20000:
474 lport->link_speed = FC_PORTSPEED_20GBIT;
475 break;
476 default:
477 lport->link_speed = FC_PORTSPEED_UNKNOWN;
478 break;
479 }
480
481
482
483
484
485
486 phylink_zero(sup_caps);
487 phylink_set(sup_caps, 10000baseT_Full);
488 phylink_set(sup_caps, 10000baseKX4_Full);
489 phylink_set(sup_caps, 10000baseR_FEC);
490 phylink_set(sup_caps, 10000baseCR_Full);
491 phylink_set(sup_caps, 10000baseSR_Full);
492 phylink_set(sup_caps, 10000baseLR_Full);
493 phylink_set(sup_caps, 10000baseLRM_Full);
494 phylink_set(sup_caps, 10000baseKR_Full);
495
496 if (linkmode_intersects(link->supported_caps, sup_caps))
497 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
498
499 phylink_zero(sup_caps);
500 phylink_set(sup_caps, 25000baseKR_Full);
501 phylink_set(sup_caps, 25000baseCR_Full);
502 phylink_set(sup_caps, 25000baseSR_Full);
503
504 if (linkmode_intersects(link->supported_caps, sup_caps))
505 lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
506
507 phylink_zero(sup_caps);
508 phylink_set(sup_caps, 40000baseLR4_Full);
509 phylink_set(sup_caps, 40000baseKR4_Full);
510 phylink_set(sup_caps, 40000baseCR4_Full);
511 phylink_set(sup_caps, 40000baseSR4_Full);
512
513 if (linkmode_intersects(link->supported_caps, sup_caps))
514 lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
515
516 phylink_zero(sup_caps);
517 phylink_set(sup_caps, 50000baseKR2_Full);
518 phylink_set(sup_caps, 50000baseCR2_Full);
519 phylink_set(sup_caps, 50000baseSR2_Full);
520
521 if (linkmode_intersects(link->supported_caps, sup_caps))
522 lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
523
524 phylink_zero(sup_caps);
525 phylink_set(sup_caps, 100000baseKR4_Full);
526 phylink_set(sup_caps, 100000baseSR4_Full);
527 phylink_set(sup_caps, 100000baseCR4_Full);
528 phylink_set(sup_caps, 100000baseLR4_ER4_Full);
529
530 if (linkmode_intersects(link->supported_caps, sup_caps))
531 lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
532
533 phylink_zero(sup_caps);
534 phylink_set(sup_caps, 20000baseKR2_Full);
535
536 if (linkmode_intersects(link->supported_caps, sup_caps))
537 lport->link_supported_speeds |= FC_PORTSPEED_20GBIT;
538
539 if (lport->host && lport->host->shost_data)
540 fc_host_supported_speeds(lport->host) =
541 lport->link_supported_speeds;
542}
543
544static void qedf_bw_update(void *dev)
545{
546 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
547 struct qed_link_output link;
548
549
550 qed_ops->common->get_link(qedf->cdev, &link);
551
552 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
553 QEDF_ERR(&qedf->dbg_ctx,
554 "Ignore link update, driver getting unload.\n");
555 return;
556 }
557
558 if (link.link_up) {
559 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
560 qedf_update_link_speed(qedf, &link);
561 else
562 QEDF_ERR(&qedf->dbg_ctx,
563 "Ignore bw update, link is down.\n");
564
565 } else {
566 QEDF_ERR(&qedf->dbg_ctx, "link_up is not set.\n");
567 }
568}
569
570static void qedf_link_update(void *dev, struct qed_link_output *link)
571{
572 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
573
574
575
576
577
578 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
579 QEDF_ERR(&qedf->dbg_ctx,
580 "Ignore link update, driver getting unload.\n");
581 return;
582 }
583
584 if (link->link_up) {
585 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
586 QEDF_INFO((&qedf->dbg_ctx), QEDF_LOG_DISC,
587 "Ignoring link up event as link is already up.\n");
588 return;
589 }
590 QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
591 link->speed / 1000);
592
593
594 cancel_delayed_work(&qedf->link_update);
595
596 atomic_set(&qedf->link_state, QEDF_LINK_UP);
597 qedf_update_link_speed(qedf, link);
598
599 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE ||
600 qedf_dcbx_no_wait) {
601 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
602 "DCBx done.\n");
603 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
604 queue_delayed_work(qedf->link_update_wq,
605 &qedf->link_recovery, 0);
606 else
607 queue_delayed_work(qedf->link_update_wq,
608 &qedf->link_update, 0);
609 atomic_set(&qedf->link_down_tmo_valid, 0);
610 }
611
612 } else {
613 QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
614
615 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
616 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
617
618
619
620
621 if (qedf_link_down_tmo > 0) {
622 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
623 "Starting link down tmo.\n");
624 atomic_set(&qedf->link_down_tmo_valid, 1);
625 }
626 qedf->vlan_id = 0;
627 qedf_update_link_speed(qedf, link);
628 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
629 qedf_link_down_tmo * HZ);
630 }
631}
632
633
634static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
635{
636 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
637 u8 tmp_prio;
638
639 QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
640 "prio=%d.\n", get->operational.valid, get->operational.enabled,
641 get->operational.app_prio.fcoe);
642
643 if (get->operational.enabled && get->operational.valid) {
644
645 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
646 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
647 "DCBX already set on link up.\n");
648 return;
649 }
650
651 atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
652
653
654
655
656
657
658
659
660 tmp_prio = get->operational.app_prio.fcoe;
661 if (qedf_default_prio > -1)
662 qedf->prio = qedf_default_prio;
663 else if (tmp_prio > 7) {
664 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
665 "FIP/FCoE prio %d out of range, setting to %d.\n",
666 tmp_prio, QEDF_DEFAULT_PRIO);
667 qedf->prio = QEDF_DEFAULT_PRIO;
668 } else
669 qedf->prio = tmp_prio;
670
671 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP &&
672 !qedf_dcbx_no_wait) {
673 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
674 queue_delayed_work(qedf->link_update_wq,
675 &qedf->link_recovery, 0);
676 else
677 queue_delayed_work(qedf->link_update_wq,
678 &qedf->link_update, 0);
679 atomic_set(&qedf->link_down_tmo_valid, 0);
680 }
681 }
682
683}
684
685static u32 qedf_get_login_failures(void *cookie)
686{
687 struct qedf_ctx *qedf;
688
689 qedf = (struct qedf_ctx *)cookie;
690 return qedf->flogi_failed;
691}
692
693static struct qed_fcoe_cb_ops qedf_cb_ops = {
694 {
695 .link_update = qedf_link_update,
696 .bw_update = qedf_bw_update,
697 .schedule_recovery_handler = qedf_schedule_recovery_handler,
698 .dcbx_aen = qedf_dcbx_handler,
699 .get_generic_tlv_data = qedf_get_generic_tlv_data,
700 .get_protocol_tlv_data = qedf_get_protocol_tlv_data,
701 .schedule_hw_err_handler = qedf_schedule_hw_err_handler,
702 }
703};
704
705
706
707
708
709static struct scsi_transport_template *qedf_fc_transport_template;
710static struct scsi_transport_template *qedf_fc_vport_transport_template;
711
712
713
714
715static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
716{
717 struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
718 struct fc_lport *lport;
719 struct qedf_ctx *qedf;
720 struct qedf_ioreq *io_req;
721 struct fc_rport_libfc_priv *rp = rport->dd_data;
722 struct fc_rport_priv *rdata;
723 struct qedf_rport *fcport = NULL;
724 int rc = FAILED;
725 int wait_count = 100;
726 int refcount = 0;
727 int rval;
728 int got_ref = 0;
729
730 lport = shost_priv(sc_cmd->device->host);
731 qedf = (struct qedf_ctx *)lport_priv(lport);
732
733
734 fcport = (struct qedf_rport *)&rp[1];
735 rdata = fcport->rdata;
736 if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
737 QEDF_ERR(&qedf->dbg_ctx, "stale rport, sc_cmd=%p\n", sc_cmd);
738 rc = SUCCESS;
739 goto out;
740 }
741
742
743 io_req = qedf_priv(sc_cmd)->io_req;
744 if (!io_req) {
745 QEDF_ERR(&qedf->dbg_ctx,
746 "sc_cmd not queued with lld, sc_cmd=%p op=0x%02x, port_id=%06x\n",
747 sc_cmd, sc_cmd->cmnd[0],
748 rdata->ids.port_id);
749 rc = SUCCESS;
750 goto drop_rdata_kref;
751 }
752
753 rval = kref_get_unless_zero(&io_req->refcount);
754 if (rval)
755 got_ref = 1;
756
757
758 if (!rval || io_req->sc_cmd != sc_cmd) {
759 QEDF_ERR(&qedf->dbg_ctx,
760 "Freed/Incorrect io_req, io_req->sc_cmd=%p, sc_cmd=%p, port_id=%06x, bailing out.\n",
761 io_req->sc_cmd, sc_cmd, rdata->ids.port_id);
762
763 goto drop_rdata_kref;
764 }
765
766 if (fc_remote_port_chkready(rport)) {
767 refcount = kref_read(&io_req->refcount);
768 QEDF_ERR(&qedf->dbg_ctx,
769 "rport not ready, io_req=%p, xid=0x%x sc_cmd=%p op=0x%02x, refcount=%d, port_id=%06x\n",
770 io_req, io_req->xid, sc_cmd, sc_cmd->cmnd[0],
771 refcount, rdata->ids.port_id);
772
773 goto drop_rdata_kref;
774 }
775
776 rc = fc_block_scsi_eh(sc_cmd);
777 if (rc)
778 goto drop_rdata_kref;
779
780 if (test_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags)) {
781 QEDF_ERR(&qedf->dbg_ctx,
782 "Connection uploading, xid=0x%x., port_id=%06x\n",
783 io_req->xid, rdata->ids.port_id);
784 while (io_req->sc_cmd && (wait_count != 0)) {
785 msleep(100);
786 wait_count--;
787 }
788 if (wait_count) {
789 QEDF_ERR(&qedf->dbg_ctx, "ABTS succeeded\n");
790 rc = SUCCESS;
791 } else {
792 QEDF_ERR(&qedf->dbg_ctx, "ABTS failed\n");
793 rc = FAILED;
794 }
795 goto drop_rdata_kref;
796 }
797
798 if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
799 QEDF_ERR(&qedf->dbg_ctx, "link not ready.\n");
800 goto drop_rdata_kref;
801 }
802
803 QEDF_ERR(&qedf->dbg_ctx,
804 "Aborting io_req=%p sc_cmd=%p xid=0x%x fp_idx=%d, port_id=%06x.\n",
805 io_req, sc_cmd, io_req->xid, io_req->fp_idx,
806 rdata->ids.port_id);
807
808 if (qedf->stop_io_on_error) {
809 qedf_stop_all_io(qedf);
810 rc = SUCCESS;
811 goto drop_rdata_kref;
812 }
813
814 init_completion(&io_req->abts_done);
815 rval = qedf_initiate_abts(io_req, true);
816 if (rval) {
817 QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
818
819
820
821
822 rc = SUCCESS;
823 qedf_scsi_done(qedf, io_req, DID_ERROR);
824 goto drop_rdata_kref;
825 }
826
827 wait_for_completion(&io_req->abts_done);
828
829 if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
830 io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
831 io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
832
833
834
835
836
837 rc = SUCCESS;
838 } else {
839
840 rc = FAILED;
841 }
842
843 if (rc == SUCCESS)
844 QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
845 io_req->xid);
846 else
847 QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
848 io_req->xid);
849
850drop_rdata_kref:
851 kref_put(&rdata->kref, fc_rport_destroy);
852out:
853 if (got_ref)
854 kref_put(&io_req->refcount, qedf_release_cmd);
855 return rc;
856}
857
858static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
859{
860 QEDF_ERR(NULL, "%d:0:%d:%lld: TARGET RESET Issued...",
861 sc_cmd->device->host->host_no, sc_cmd->device->id,
862 sc_cmd->device->lun);
863 return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
864}
865
866static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
867{
868 QEDF_ERR(NULL, "%d:0:%d:%lld: LUN RESET Issued... ",
869 sc_cmd->device->host->host_no, sc_cmd->device->id,
870 sc_cmd->device->lun);
871 return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
872}
873
874bool qedf_wait_for_upload(struct qedf_ctx *qedf)
875{
876 struct qedf_rport *fcport;
877 int wait_cnt = 120;
878
879 while (wait_cnt--) {
880 if (atomic_read(&qedf->num_offloads))
881 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
882 "Waiting for all uploads to complete num_offloads = 0x%x.\n",
883 atomic_read(&qedf->num_offloads));
884 else
885 return true;
886 msleep(500);
887 }
888
889 rcu_read_lock();
890 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
891 if (test_bit(QEDF_RPORT_SESSION_READY,
892 &fcport->flags)) {
893 if (fcport->rdata)
894 QEDF_ERR(&qedf->dbg_ctx,
895 "Waiting for fcport %p portid=%06x.\n",
896 fcport, fcport->rdata->ids.port_id);
897 } else {
898 QEDF_ERR(&qedf->dbg_ctx,
899 "Waiting for fcport %p.\n", fcport);
900 }
901 }
902
903 rcu_read_unlock();
904 return false;
905}
906
907
908void qedf_ctx_soft_reset(struct fc_lport *lport)
909{
910 struct qedf_ctx *qedf;
911 struct qed_link_output if_link;
912
913 if (lport->vport) {
914 printk_ratelimited("Cannot issue host reset on NPIV port.\n");
915 return;
916 }
917
918 qedf = lport_priv(lport);
919
920 qedf->flogi_pending = 0;
921
922 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
923 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
924 "Queuing link down work.\n");
925 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
926 0);
927
928 if (qedf_wait_for_upload(qedf) == false) {
929 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
930 WARN_ON(atomic_read(&qedf->num_offloads));
931 }
932
933
934 qed_ops->common->get_link(qedf->cdev, &if_link);
935
936 if (!if_link.link_up) {
937 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
938 "Physical link is not up.\n");
939 return;
940 }
941
942 flush_delayed_work(&qedf->link_update);
943 msleep(500);
944
945 atomic_set(&qedf->link_state, QEDF_LINK_UP);
946 qedf->vlan_id = 0;
947 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
948 "Queue link up work.\n");
949 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
950 0);
951}
952
953
954static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
955{
956 struct fc_lport *lport;
957 struct qedf_ctx *qedf;
958
959 lport = shost_priv(sc_cmd->device->host);
960 qedf = lport_priv(lport);
961
962 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
963 test_bit(QEDF_UNLOADING, &qedf->flags))
964 return FAILED;
965
966 QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
967
968 qedf_ctx_soft_reset(lport);
969
970 return SUCCESS;
971}
972
973static int qedf_slave_configure(struct scsi_device *sdev)
974{
975 if (qedf_queue_depth) {
976 scsi_change_queue_depth(sdev, qedf_queue_depth);
977 }
978
979 return 0;
980}
981
982static struct scsi_host_template qedf_host_template = {
983 .module = THIS_MODULE,
984 .name = QEDF_MODULE_NAME,
985 .this_id = -1,
986 .cmd_per_lun = 32,
987 .max_sectors = 0xffff,
988 .queuecommand = qedf_queuecommand,
989 .shost_groups = qedf_host_groups,
990 .eh_abort_handler = qedf_eh_abort,
991 .eh_device_reset_handler = qedf_eh_device_reset,
992 .eh_target_reset_handler = qedf_eh_target_reset,
993 .eh_host_reset_handler = qedf_eh_host_reset,
994 .slave_configure = qedf_slave_configure,
995 .dma_boundary = QED_HW_DMA_BOUNDARY,
996 .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
997 .can_queue = FCOE_PARAMS_NUM_TASKS,
998 .change_queue_depth = scsi_change_queue_depth,
999 .cmd_size = sizeof(struct qedf_cmd_priv),
1000};
1001
1002static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
1003{
1004 int rc;
1005
1006 spin_lock(&qedf_global_lock);
1007 rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
1008 spin_unlock(&qedf_global_lock);
1009
1010 return rc;
1011}
1012
1013static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
1014{
1015 struct qedf_rport *fcport;
1016 struct fc_rport_priv *rdata;
1017
1018 rcu_read_lock();
1019 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
1020 rdata = fcport->rdata;
1021 if (rdata == NULL)
1022 continue;
1023 if (rdata->ids.port_id == port_id) {
1024 rcu_read_unlock();
1025 return fcport;
1026 }
1027 }
1028 rcu_read_unlock();
1029
1030
1031 return NULL;
1032}
1033
1034
1035static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
1036{
1037 struct fc_frame_header *fh;
1038 int rc = 0;
1039
1040 fh = fc_frame_header_get(fp);
1041 if ((fh->fh_type == FC_TYPE_ELS) &&
1042 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1043 switch (fc_frame_payload_op(fp)) {
1044 case ELS_ADISC:
1045 qedf_send_adisc(fcport, fp);
1046 rc = 1;
1047 break;
1048 }
1049 }
1050
1051 return rc;
1052}
1053
1054
1055
1056
1057static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
1058{
1059 struct fc_lport *base_lport;
1060 struct qedf_ctx *qedf;
1061 struct ethhdr *eh;
1062 struct fcoe_crc_eof *cp;
1063 struct sk_buff *skb;
1064 struct fc_frame_header *fh;
1065 struct fcoe_hdr *hp;
1066 u8 sof, eof;
1067 u32 crc;
1068 unsigned int hlen, tlen, elen;
1069 int wlen;
1070 struct fc_lport *tmp_lport;
1071 struct fc_lport *vn_port = NULL;
1072 struct qedf_rport *fcport;
1073 int rc;
1074 u16 vlan_tci = 0;
1075
1076 qedf = (struct qedf_ctx *)lport_priv(lport);
1077
1078 fh = fc_frame_header_get(fp);
1079 skb = fp_skb(fp);
1080
1081
1082 if (lport->vport)
1083 base_lport = shost_priv(vport_to_shost(lport->vport));
1084 else
1085 base_lport = lport;
1086
1087
1088 if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
1089 vn_port = base_lport;
1090 } else {
1091
1092
1093
1094 list_for_each_entry(tmp_lport, &base_lport->vports, list) {
1095 if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
1096 vn_port = tmp_lport;
1097 break;
1098 }
1099 }
1100 }
1101 if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
1102 struct fc_rport_priv *rdata = NULL;
1103
1104 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
1105 "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
1106 kfree_skb(skb);
1107 rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
1108 if (rdata) {
1109 rdata->retries = lport->max_rport_retry_count;
1110 kref_put(&rdata->kref, fc_rport_destroy);
1111 }
1112 return -EINVAL;
1113 }
1114
1115
1116 if (!qedf->ctlr.sel_fcf) {
1117 kfree_skb(skb);
1118 return 0;
1119 }
1120
1121 if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
1122 QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
1123 kfree_skb(skb);
1124 return 0;
1125 }
1126
1127 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
1128 QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
1129 kfree_skb(skb);
1130 return 0;
1131 }
1132
1133 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1134 if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
1135 return 0;
1136 }
1137
1138
1139 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
1140
1141 if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1142 rc = qedf_xmit_l2_frame(fcport, fp);
1143
1144
1145
1146
1147 if (rc)
1148 return 0;
1149 }
1150
1151 sof = fr_sof(fp);
1152 eof = fr_eof(fp);
1153
1154 elen = sizeof(struct ethhdr);
1155 hlen = sizeof(struct fcoe_hdr);
1156 tlen = sizeof(struct fcoe_crc_eof);
1157 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
1158
1159 skb->ip_summed = CHECKSUM_NONE;
1160 crc = fcoe_fc_crc(fp);
1161
1162
1163 if (skb_is_nonlinear(skb)) {
1164 skb_frag_t *frag;
1165
1166 if (qedf_get_paged_crc_eof(skb, tlen)) {
1167 kfree_skb(skb);
1168 return -ENOMEM;
1169 }
1170 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
1171 cp = kmap_atomic(skb_frag_page(frag)) + skb_frag_off(frag);
1172 } else {
1173 cp = skb_put(skb, tlen);
1174 }
1175
1176 memset(cp, 0, sizeof(*cp));
1177 cp->fcoe_eof = eof;
1178 cp->fcoe_crc32 = cpu_to_le32(~crc);
1179 if (skb_is_nonlinear(skb)) {
1180 kunmap_atomic(cp);
1181 cp = NULL;
1182 }
1183
1184
1185
1186 skb_push(skb, elen + hlen);
1187 skb_reset_mac_header(skb);
1188 skb_reset_network_header(skb);
1189 skb->mac_len = elen;
1190 skb->protocol = htons(ETH_P_FCOE);
1191
1192
1193
1194
1195
1196 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
1197
1198
1199 eh = eth_hdr(skb);
1200 eh->h_proto = htons(ETH_P_FCOE);
1201 if (qedf->ctlr.map_dest)
1202 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
1203 else
1204
1205 ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
1206
1207
1208 ether_addr_copy(eh->h_source, qedf->data_src_addr);
1209
1210 hp = (struct fcoe_hdr *)(eh + 1);
1211 memset(hp, 0, sizeof(*hp));
1212 if (FC_FCOE_VER)
1213 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
1214 hp->fcoe_sof = sof;
1215
1216
1217 this_cpu_inc(lport->stats->TxFrames);
1218 this_cpu_add(lport->stats->TxWords, wlen);
1219
1220
1221 __vlan_hwaccel_get_tag(skb, &vlan_tci);
1222
1223
1224 fr_dev(fp) = lport;
1225 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
1226 "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
1227 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
1228 vlan_tci);
1229 if (qedf_dump_frames)
1230 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
1231 1, skb->data, skb->len, false);
1232 rc = qed_ops->ll2->start_xmit(qedf->cdev, skb, 0);
1233 if (rc) {
1234 QEDF_ERR(&qedf->dbg_ctx, "start_xmit failed rc = %d.\n", rc);
1235 kfree_skb(skb);
1236 return rc;
1237 }
1238
1239 return 0;
1240}
1241
1242static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1243{
1244 int rval = 0;
1245 u32 *pbl;
1246 dma_addr_t page;
1247 int num_pages;
1248
1249
1250 fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
1251 fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
1252 fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
1253 sizeof(void *);
1254 fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
1255
1256 fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1257 &fcport->sq_dma, GFP_KERNEL);
1258 if (!fcport->sq) {
1259 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue.\n");
1260 rval = 1;
1261 goto out;
1262 }
1263
1264 fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
1265 fcport->sq_pbl_size,
1266 &fcport->sq_pbl_dma, GFP_KERNEL);
1267 if (!fcport->sq_pbl) {
1268 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue PBL.\n");
1269 rval = 1;
1270 goto out_free_sq;
1271 }
1272
1273
1274 num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
1275 page = fcport->sq_dma;
1276 pbl = (u32 *)fcport->sq_pbl;
1277
1278 while (num_pages--) {
1279 *pbl = U64_LO(page);
1280 pbl++;
1281 *pbl = U64_HI(page);
1282 pbl++;
1283 page += QEDF_PAGE_SIZE;
1284 }
1285
1286 return rval;
1287
1288out_free_sq:
1289 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
1290 fcport->sq_dma);
1291out:
1292 return rval;
1293}
1294
1295static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1296{
1297 if (fcport->sq_pbl)
1298 dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
1299 fcport->sq_pbl, fcport->sq_pbl_dma);
1300 if (fcport->sq)
1301 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1302 fcport->sq, fcport->sq_dma);
1303}
1304
1305static int qedf_offload_connection(struct qedf_ctx *qedf,
1306 struct qedf_rport *fcport)
1307{
1308 struct qed_fcoe_params_offload conn_info;
1309 u32 port_id;
1310 int rval;
1311 uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
1312
1313 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
1314 "portid=%06x.\n", fcport->rdata->ids.port_id);
1315 rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
1316 &fcport->fw_cid, &fcport->p_doorbell);
1317 if (rval) {
1318 QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
1319 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1320 rval = 1;
1321 goto out;
1322 }
1323
1324 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
1325 "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
1326 fcport->fw_cid, fcport->handle);
1327
1328 memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
1329
1330
1331 conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
1332
1333 conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
1334 conn_info.sq_next_page_addr =
1335 (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
1336
1337
1338 ether_addr_copy(conn_info.src_mac, qedf->data_src_addr);
1339
1340 ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
1341
1342 conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
1343 conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov;
1344 conn_info.rec_tov_timer_val = 3;
1345 conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
1346
1347
1348 conn_info.vlan_tag = qedf->vlan_id <<
1349 FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
1350 conn_info.vlan_tag |=
1351 qedf->prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
1352 conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
1353 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
1354
1355
1356 port_id = fc_host_port_id(qedf->lport->host);
1357 fcport->sid = port_id;
1358 conn_info.s_id.addr_hi = (port_id & 0x000000FF);
1359 conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1360 conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1361
1362 conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
1363
1364
1365 port_id = fcport->rdata->rport->port_id;
1366 conn_info.d_id.addr_hi = (port_id & 0x000000FF);
1367 conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1368 conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1369
1370 conn_info.def_q_idx = 0;
1371
1372
1373 if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
1374 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
1375 "Enable CONF, REC for portid=%06x.\n",
1376 fcport->rdata->ids.port_id);
1377 conn_info.flags |= 1 <<
1378 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
1379 conn_info.flags |=
1380 ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
1381 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
1382 }
1383
1384 rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
1385 if (rval) {
1386 QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
1387 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1388 goto out_free_conn;
1389 } else
1390 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
1391 "succeeded portid=%06x total_sqe=%d.\n",
1392 fcport->rdata->ids.port_id, total_sqe);
1393
1394 spin_lock_init(&fcport->rport_lock);
1395 atomic_set(&fcport->free_sqes, total_sqe);
1396 return 0;
1397out_free_conn:
1398 qed_ops->release_conn(qedf->cdev, fcport->handle);
1399out:
1400 return rval;
1401}
1402
1403#define QEDF_TERM_BUFF_SIZE 10
1404static void qedf_upload_connection(struct qedf_ctx *qedf,
1405 struct qedf_rport *fcport)
1406{
1407 void *term_params;
1408 dma_addr_t term_params_dma;
1409
1410
1411
1412
1413
1414 term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
1415 &term_params_dma, GFP_KERNEL);
1416 if (!term_params)
1417 return;
1418
1419 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
1420 "port_id=%06x.\n", fcport->rdata->ids.port_id);
1421
1422 qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
1423 qed_ops->release_conn(qedf->cdev, fcport->handle);
1424
1425 dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
1426 term_params_dma);
1427}
1428
1429static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
1430 struct qedf_rport *fcport)
1431{
1432 struct fc_rport_priv *rdata = fcport->rdata;
1433
1434 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
1435 fcport->rdata->ids.port_id);
1436
1437
1438 qedf_flush_active_ios(fcport, -1);
1439
1440 if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
1441 qedf_upload_connection(qedf, fcport);
1442 qedf_free_sq(qedf, fcport);
1443 fcport->rdata = NULL;
1444 fcport->qedf = NULL;
1445 kref_put(&rdata->kref, fc_rport_destroy);
1446}
1447
1448
1449
1450
1451
1452
1453static void qedf_rport_event_handler(struct fc_lport *lport,
1454 struct fc_rport_priv *rdata,
1455 enum fc_rport_event event)
1456{
1457 struct qedf_ctx *qedf = lport_priv(lport);
1458 struct fc_rport *rport = rdata->rport;
1459 struct fc_rport_libfc_priv *rp;
1460 struct qedf_rport *fcport;
1461 u32 port_id;
1462 int rval;
1463 unsigned long flags;
1464
1465 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
1466 "port_id = 0x%x\n", event, rdata->ids.port_id);
1467
1468 switch (event) {
1469 case RPORT_EV_READY:
1470 if (!rport) {
1471 QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
1472 break;
1473 }
1474
1475 rp = rport->dd_data;
1476 fcport = (struct qedf_rport *)&rp[1];
1477 fcport->qedf = qedf;
1478
1479 if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
1480 QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
1481 "portid=0x%x as max number of offloaded sessions "
1482 "reached.\n", rdata->ids.port_id);
1483 return;
1484 }
1485
1486
1487
1488
1489
1490 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1491 QEDF_WARN(&(qedf->dbg_ctx), "Session already "
1492 "offloaded, portid=0x%x.\n",
1493 rdata->ids.port_id);
1494 return;
1495 }
1496
1497 if (rport->port_id == FC_FID_DIR_SERV) {
1498
1499
1500
1501
1502
1503
1504 QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
1505 "exist for dir server port_id=%x\n",
1506 rdata->ids.port_id);
1507 break;
1508 }
1509
1510 if (rdata->spp_type != FC_TYPE_FCP) {
1511 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1512 "Not offloading since spp type isn't FCP\n");
1513 break;
1514 }
1515 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1516 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1517 "Not FCP target so not offloading\n");
1518 break;
1519 }
1520
1521
1522 kref_get(&rdata->kref);
1523 fcport->rdata = rdata;
1524 fcport->rport = rport;
1525
1526 rval = qedf_alloc_sq(qedf, fcport);
1527 if (rval) {
1528 qedf_cleanup_fcport(qedf, fcport);
1529 break;
1530 }
1531
1532
1533 if (rdata->flags & FC_RP_FLAGS_RETRY &&
1534 rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
1535 !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
1536 fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
1537 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1538 "portid=%06x is a TAPE device.\n",
1539 rdata->ids.port_id);
1540 } else {
1541 fcport->dev_type = QEDF_RPORT_TYPE_DISK;
1542 }
1543
1544 rval = qedf_offload_connection(qedf, fcport);
1545 if (rval) {
1546 qedf_cleanup_fcport(qedf, fcport);
1547 break;
1548 }
1549
1550
1551 spin_lock_irqsave(&qedf->hba_lock, flags);
1552 list_add_rcu(&fcport->peers, &qedf->fcports);
1553 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1554
1555
1556
1557
1558
1559 set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
1560 atomic_inc(&qedf->num_offloads);
1561
1562 break;
1563 case RPORT_EV_LOGO:
1564 case RPORT_EV_FAILED:
1565 case RPORT_EV_STOP:
1566 port_id = rdata->ids.port_id;
1567 if (port_id == FC_FID_DIR_SERV)
1568 break;
1569
1570 if (rdata->spp_type != FC_TYPE_FCP) {
1571 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1572 "No action since spp type isn't FCP\n");
1573 break;
1574 }
1575 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1576 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1577 "Not FCP target so no action\n");
1578 break;
1579 }
1580
1581 if (!rport) {
1582 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1583 "port_id=%x - rport notcreated Yet!!\n", port_id);
1584 break;
1585 }
1586 rp = rport->dd_data;
1587
1588
1589
1590
1591 fcport = (struct qedf_rport *)&rp[1];
1592
1593 spin_lock_irqsave(&fcport->rport_lock, flags);
1594
1595 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags) &&
1596 !test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1597 &fcport->flags)) {
1598 set_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1599 &fcport->flags);
1600 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1601 qedf_cleanup_fcport(qedf, fcport);
1602
1603
1604
1605
1606 spin_lock_irqsave(&qedf->hba_lock, flags);
1607 list_del_rcu(&fcport->peers);
1608 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1609
1610 clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1611 &fcport->flags);
1612 atomic_dec(&qedf->num_offloads);
1613 } else {
1614 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1615 }
1616 break;
1617
1618 case RPORT_EV_NONE:
1619 break;
1620 }
1621}
1622
1623static void qedf_abort_io(struct fc_lport *lport)
1624{
1625
1626}
1627
1628static void qedf_fcp_cleanup(struct fc_lport *lport)
1629{
1630
1631
1632
1633
1634
1635}
1636
1637static struct libfc_function_template qedf_lport_template = {
1638 .frame_send = qedf_xmit,
1639 .fcp_abort_io = qedf_abort_io,
1640 .fcp_cleanup = qedf_fcp_cleanup,
1641 .rport_event_callback = qedf_rport_event_handler,
1642 .elsct_send = qedf_elsct_send,
1643};
1644
1645static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
1646{
1647 fcoe_ctlr_init(&qedf->ctlr, FIP_MODE_AUTO);
1648
1649 qedf->ctlr.send = qedf_fip_send;
1650 qedf->ctlr.get_src_addr = qedf_get_src_mac;
1651 ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
1652}
1653
1654static void qedf_setup_fdmi(struct qedf_ctx *qedf)
1655{
1656 struct fc_lport *lport = qedf->lport;
1657 u8 buf[8];
1658 int pos;
1659 uint32_t i;
1660
1661
1662
1663
1664
1665 lport->fdmi_enabled = 1;
1666
1667
1668
1669
1670
1671
1672
1673 pos = pci_find_ext_capability(qedf->pdev, PCI_EXT_CAP_ID_DSN);
1674 if (pos) {
1675 pos += 4;
1676 for (i = 0; i < 8; i++)
1677 pci_read_config_byte(qedf->pdev, pos + i, &buf[i]);
1678
1679 snprintf(fc_host_serial_number(lport->host),
1680 FC_SERIAL_NUMBER_SIZE,
1681 "%02X%02X%02X%02X%02X%02X%02X%02X",
1682 buf[7], buf[6], buf[5], buf[4],
1683 buf[3], buf[2], buf[1], buf[0]);
1684 } else
1685 snprintf(fc_host_serial_number(lport->host),
1686 FC_SERIAL_NUMBER_SIZE, "Unknown");
1687
1688 snprintf(fc_host_manufacturer(lport->host),
1689 FC_SERIAL_NUMBER_SIZE, "%s", "Marvell Semiconductor Inc.");
1690
1691 if (qedf->pdev->device == QL45xxx) {
1692 snprintf(fc_host_model(lport->host),
1693 FC_SYMBOLIC_NAME_SIZE, "%s", "QL45xxx");
1694
1695 snprintf(fc_host_model_description(lport->host),
1696 FC_SYMBOLIC_NAME_SIZE, "%s",
1697 "Marvell FastLinQ QL45xxx FCoE Adapter");
1698 }
1699
1700 if (qedf->pdev->device == QL41xxx) {
1701 snprintf(fc_host_model(lport->host),
1702 FC_SYMBOLIC_NAME_SIZE, "%s", "QL41xxx");
1703
1704 snprintf(fc_host_model_description(lport->host),
1705 FC_SYMBOLIC_NAME_SIZE, "%s",
1706 "Marvell FastLinQ QL41xxx FCoE Adapter");
1707 }
1708
1709 snprintf(fc_host_hardware_version(lport->host),
1710 FC_VERSION_STRING_SIZE, "Rev %d", qedf->pdev->revision);
1711
1712 snprintf(fc_host_driver_version(lport->host),
1713 FC_VERSION_STRING_SIZE, "%s", QEDF_VERSION);
1714
1715 snprintf(fc_host_firmware_version(lport->host),
1716 FC_VERSION_STRING_SIZE, "%d.%d.%d.%d",
1717 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
1718 FW_ENGINEERING_VERSION);
1719
1720 snprintf(fc_host_vendor_identifier(lport->host),
1721 FC_VENDOR_IDENTIFIER, "%s", "Marvell");
1722
1723}
1724
1725static int qedf_lport_setup(struct qedf_ctx *qedf)
1726{
1727 struct fc_lport *lport = qedf->lport;
1728
1729 lport->link_up = 0;
1730 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1731 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1732 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1733 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1734 lport->boot_time = jiffies;
1735 lport->e_d_tov = 2 * 1000;
1736 lport->r_a_tov = 10 * 1000;
1737
1738
1739 lport->does_npiv = 1;
1740 fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
1741
1742 fc_set_wwnn(lport, qedf->wwnn);
1743 fc_set_wwpn(lport, qedf->wwpn);
1744
1745 if (fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0)) {
1746 QEDF_ERR(&qedf->dbg_ctx,
1747 "fcoe_libfc_config failed.\n");
1748 return -ENOMEM;
1749 }
1750
1751
1752 fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_PARAMS_NUM_TASKS,
1753 0xfffe, NULL);
1754
1755 if (fc_lport_init_stats(lport))
1756 return -ENOMEM;
1757
1758
1759 fc_lport_config(lport);
1760
1761
1762 fc_set_mfs(lport, QEDF_MFS);
1763 fc_host_maxframe_size(lport->host) = lport->mfs;
1764
1765
1766 fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
1767
1768
1769 if (qedf->pdev->device == QL45xxx)
1770 snprintf(fc_host_symbolic_name(lport->host), 256,
1771 "Marvell FastLinQ 45xxx FCoE v%s", QEDF_VERSION);
1772
1773 if (qedf->pdev->device == QL41xxx)
1774 snprintf(fc_host_symbolic_name(lport->host), 256,
1775 "Marvell FastLinQ 41xxx FCoE v%s", QEDF_VERSION);
1776
1777 qedf_setup_fdmi(qedf);
1778
1779 return 0;
1780}
1781
1782
1783
1784
1785
1786static int qedf_vport_libfc_config(struct fc_vport *vport,
1787 struct fc_lport *lport)
1788{
1789 lport->link_up = 0;
1790 lport->qfull = 0;
1791 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1792 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1793 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1794 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1795 lport->boot_time = jiffies;
1796 lport->e_d_tov = 2 * 1000;
1797 lport->r_a_tov = 10 * 1000;
1798 lport->does_npiv = 1;
1799
1800
1801 if (fc_lport_init_stats(lport))
1802 return -ENOMEM;
1803
1804
1805 fc_lport_config(lport);
1806
1807
1808 lport->crc_offload = 0;
1809 lport->seq_offload = 0;
1810 lport->lro_enabled = 0;
1811 lport->lro_xid = 0;
1812 lport->lso_max = 0;
1813
1814 return 0;
1815}
1816
1817static int qedf_vport_create(struct fc_vport *vport, bool disabled)
1818{
1819 struct Scsi_Host *shost = vport_to_shost(vport);
1820 struct fc_lport *n_port = shost_priv(shost);
1821 struct fc_lport *vn_port;
1822 struct qedf_ctx *base_qedf = lport_priv(n_port);
1823 struct qedf_ctx *vport_qedf;
1824
1825 char buf[32];
1826 int rc = 0;
1827
1828 rc = fcoe_validate_vport_create(vport);
1829 if (rc) {
1830 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1831 QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
1832 "WWPN (0x%s) already exists.\n", buf);
1833 return rc;
1834 }
1835
1836 if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
1837 QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
1838 "because link is not up.\n");
1839 return -EIO;
1840 }
1841
1842 vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
1843 if (!vn_port) {
1844 QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
1845 "for vport.\n");
1846 return -ENOMEM;
1847 }
1848
1849 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1850 QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
1851 buf);
1852
1853
1854 vport_qedf = lport_priv(vn_port);
1855 memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
1856
1857
1858 vport_qedf->lport = vn_port;
1859
1860 vport_qedf->hba_lock = base_qedf->hba_lock;
1861 vport_qedf->pdev = base_qedf->pdev;
1862 vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
1863 init_completion(&vport_qedf->flogi_compl);
1864 INIT_LIST_HEAD(&vport_qedf->fcports);
1865 INIT_DELAYED_WORK(&vport_qedf->stag_work, qedf_stag_change_work);
1866
1867 rc = qedf_vport_libfc_config(vport, vn_port);
1868 if (rc) {
1869 QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
1870 "for lport stats.\n");
1871 goto err;
1872 }
1873
1874 fc_set_wwnn(vn_port, vport->node_name);
1875 fc_set_wwpn(vn_port, vport->port_name);
1876 vport_qedf->wwnn = vn_port->wwnn;
1877 vport_qedf->wwpn = vn_port->wwpn;
1878
1879 vn_port->host->transportt = qedf_fc_vport_transport_template;
1880 vn_port->host->can_queue = FCOE_PARAMS_NUM_TASKS;
1881 vn_port->host->max_lun = qedf_max_lun;
1882 vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
1883 vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
1884 vn_port->host->max_id = QEDF_MAX_SESSIONS;
1885
1886 rc = scsi_add_host(vn_port->host, &vport->dev);
1887 if (rc) {
1888 QEDF_WARN(&base_qedf->dbg_ctx,
1889 "Error adding Scsi_Host rc=0x%x.\n", rc);
1890 goto err;
1891 }
1892
1893
1894 fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
1895
1896
1897 memcpy(&vn_port->tt, &qedf_lport_template,
1898 sizeof(qedf_lport_template));
1899 fc_exch_init(vn_port);
1900 fc_elsct_init(vn_port);
1901 fc_lport_init(vn_port);
1902 fc_disc_init(vn_port);
1903 fc_disc_config(vn_port, vn_port);
1904
1905
1906
1907 shost = vport_to_shost(vport);
1908 n_port = shost_priv(shost);
1909 fc_exch_mgr_list_clone(n_port, vn_port);
1910
1911
1912 fc_set_mfs(vn_port, QEDF_MFS);
1913
1914 fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
1915
1916 if (disabled) {
1917 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1918 } else {
1919 vn_port->boot_time = jiffies;
1920 fc_fabric_login(vn_port);
1921 fc_vport_setlink(vn_port);
1922 }
1923
1924 QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
1925 vn_port);
1926
1927
1928 vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
1929 vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
1930
1931 return 0;
1932
1933err:
1934 scsi_host_put(vn_port->host);
1935 return rc;
1936}
1937
1938static int qedf_vport_destroy(struct fc_vport *vport)
1939{
1940 struct Scsi_Host *shost = vport_to_shost(vport);
1941 struct fc_lport *n_port = shost_priv(shost);
1942 struct fc_lport *vn_port = vport->dd_data;
1943 struct qedf_ctx *qedf = lport_priv(vn_port);
1944
1945 if (!qedf) {
1946 QEDF_ERR(NULL, "qedf is NULL.\n");
1947 goto out;
1948 }
1949
1950
1951 set_bit(QEDF_UNLOADING, &qedf->flags);
1952
1953 mutex_lock(&n_port->lp_mutex);
1954 list_del(&vn_port->list);
1955 mutex_unlock(&n_port->lp_mutex);
1956
1957 fc_fabric_logoff(vn_port);
1958 fc_lport_destroy(vn_port);
1959
1960
1961 fc_remove_host(vn_port->host);
1962 scsi_remove_host(vn_port->host);
1963
1964
1965
1966
1967
1968 if (vn_port->state == LPORT_ST_READY)
1969 fc_exch_mgr_free(vn_port);
1970
1971
1972 fc_lport_free_stats(vn_port);
1973
1974
1975 scsi_host_put(vn_port->host);
1976
1977out:
1978 return 0;
1979}
1980
1981static int qedf_vport_disable(struct fc_vport *vport, bool disable)
1982{
1983 struct fc_lport *lport = vport->dd_data;
1984
1985 if (disable) {
1986 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1987 fc_fabric_logoff(lport);
1988 } else {
1989 lport->boot_time = jiffies;
1990 fc_fabric_login(lport);
1991 fc_vport_setlink(lport);
1992 }
1993 return 0;
1994}
1995
1996
1997
1998
1999
2000
2001
2002static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
2003{
2004 struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
2005
2006 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
2007 "Entered.\n");
2008 while (fc_host->npiv_vports_inuse > 0) {
2009 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
2010 "Waiting for all vports to be reaped.\n");
2011 msleep(1000);
2012 }
2013}
2014
2015
2016
2017
2018
2019
2020
2021
2022static int qedf_fcoe_reset(struct Scsi_Host *shost)
2023{
2024 struct fc_lport *lport = shost_priv(shost);
2025
2026 qedf_ctx_soft_reset(lport);
2027 return 0;
2028}
2029
2030static void qedf_get_host_port_id(struct Scsi_Host *shost)
2031{
2032 struct fc_lport *lport = shost_priv(shost);
2033
2034 fc_host_port_id(shost) = lport->port_id;
2035}
2036
2037static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
2038 *shost)
2039{
2040 struct fc_host_statistics *qedf_stats;
2041 struct fc_lport *lport = shost_priv(shost);
2042 struct qedf_ctx *qedf = lport_priv(lport);
2043 struct qed_fcoe_stats *fw_fcoe_stats;
2044
2045 qedf_stats = fc_get_host_stats(shost);
2046
2047
2048 if (lport->vport)
2049 goto out;
2050
2051 fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
2052 if (!fw_fcoe_stats) {
2053 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
2054 "fw_fcoe_stats.\n");
2055 goto out;
2056 }
2057
2058 mutex_lock(&qedf->stats_mutex);
2059
2060
2061 qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
2062
2063
2064
2065
2066
2067
2068
2069 qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
2070 fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
2071 fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
2072 qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
2073 fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
2074 fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
2075 qedf_stats->fcp_input_megabytes +=
2076 do_div(fw_fcoe_stats->fcoe_rx_byte_cnt, 1000000);
2077 qedf_stats->fcp_output_megabytes +=
2078 do_div(fw_fcoe_stats->fcoe_tx_byte_cnt, 1000000);
2079 qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
2080 qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
2081 qedf_stats->invalid_crc_count +=
2082 fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
2083 qedf_stats->dumped_frames =
2084 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
2085 qedf_stats->error_frames +=
2086 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
2087 qedf_stats->fcp_input_requests += qedf->input_requests;
2088 qedf_stats->fcp_output_requests += qedf->output_requests;
2089 qedf_stats->fcp_control_requests += qedf->control_requests;
2090 qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
2091 qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
2092
2093 mutex_unlock(&qedf->stats_mutex);
2094 kfree(fw_fcoe_stats);
2095out:
2096 return qedf_stats;
2097}
2098
2099static struct fc_function_template qedf_fc_transport_fn = {
2100 .show_host_node_name = 1,
2101 .show_host_port_name = 1,
2102 .show_host_supported_classes = 1,
2103 .show_host_supported_fc4s = 1,
2104 .show_host_active_fc4s = 1,
2105 .show_host_maxframe_size = 1,
2106
2107 .get_host_port_id = qedf_get_host_port_id,
2108 .show_host_port_id = 1,
2109 .show_host_supported_speeds = 1,
2110 .get_host_speed = fc_get_host_speed,
2111 .show_host_speed = 1,
2112 .show_host_port_type = 1,
2113 .get_host_port_state = fc_get_host_port_state,
2114 .show_host_port_state = 1,
2115 .show_host_symbolic_name = 1,
2116
2117
2118
2119
2120
2121 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2122 sizeof(struct qedf_rport)),
2123 .show_rport_maxframe_size = 1,
2124 .show_rport_supported_classes = 1,
2125 .show_host_fabric_name = 1,
2126 .show_starget_node_name = 1,
2127 .show_starget_port_name = 1,
2128 .show_starget_port_id = 1,
2129 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2130 .show_rport_dev_loss_tmo = 1,
2131 .get_fc_host_stats = qedf_fc_get_host_stats,
2132 .issue_fc_host_lip = qedf_fcoe_reset,
2133 .vport_create = qedf_vport_create,
2134 .vport_delete = qedf_vport_destroy,
2135 .vport_disable = qedf_vport_disable,
2136 .bsg_request = fc_lport_bsg_request,
2137};
2138
2139static struct fc_function_template qedf_fc_vport_transport_fn = {
2140 .show_host_node_name = 1,
2141 .show_host_port_name = 1,
2142 .show_host_supported_classes = 1,
2143 .show_host_supported_fc4s = 1,
2144 .show_host_active_fc4s = 1,
2145 .show_host_maxframe_size = 1,
2146 .show_host_port_id = 1,
2147 .show_host_supported_speeds = 1,
2148 .get_host_speed = fc_get_host_speed,
2149 .show_host_speed = 1,
2150 .show_host_port_type = 1,
2151 .get_host_port_state = fc_get_host_port_state,
2152 .show_host_port_state = 1,
2153 .show_host_symbolic_name = 1,
2154 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2155 sizeof(struct qedf_rport)),
2156 .show_rport_maxframe_size = 1,
2157 .show_rport_supported_classes = 1,
2158 .show_host_fabric_name = 1,
2159 .show_starget_node_name = 1,
2160 .show_starget_port_name = 1,
2161 .show_starget_port_id = 1,
2162 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2163 .show_rport_dev_loss_tmo = 1,
2164 .get_fc_host_stats = fc_get_host_stats,
2165 .issue_fc_host_lip = qedf_fcoe_reset,
2166 .bsg_request = fc_lport_bsg_request,
2167};
2168
2169static bool qedf_fp_has_work(struct qedf_fastpath *fp)
2170{
2171 struct qedf_ctx *qedf = fp->qedf;
2172 struct global_queue *que;
2173 struct qed_sb_info *sb_info = fp->sb_info;
2174 struct status_block *sb = sb_info->sb_virt;
2175 u16 prod_idx;
2176
2177
2178 que = qedf->global_queues[fp->sb_id];
2179
2180
2181 rmb();
2182
2183
2184 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2185
2186 return (que->cq_prod_idx != prod_idx);
2187}
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197static bool qedf_process_completions(struct qedf_fastpath *fp)
2198{
2199 struct qedf_ctx *qedf = fp->qedf;
2200 struct qed_sb_info *sb_info = fp->sb_info;
2201 struct status_block *sb = sb_info->sb_virt;
2202 struct global_queue *que;
2203 u16 prod_idx;
2204 struct fcoe_cqe *cqe;
2205 struct qedf_io_work *io_work;
2206 int num_handled = 0;
2207 unsigned int cpu;
2208 struct qedf_ioreq *io_req = NULL;
2209 u16 xid;
2210 u16 new_cqes;
2211 u32 comp_type;
2212
2213
2214 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2215
2216
2217 que = qedf->global_queues[fp->sb_id];
2218
2219
2220 new_cqes = (prod_idx >= que->cq_prod_idx) ?
2221 (prod_idx - que->cq_prod_idx) :
2222 0x10000 - que->cq_prod_idx + prod_idx;
2223
2224
2225 que->cq_prod_idx = prod_idx;
2226
2227 while (new_cqes) {
2228 fp->completions++;
2229 num_handled++;
2230 cqe = &que->cq[que->cq_cons_idx];
2231
2232 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2233 FCOE_CQE_CQE_TYPE_MASK;
2234
2235
2236
2237
2238
2239 if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
2240 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
2241 "Unsolicated CQE.\n");
2242 qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
2243
2244
2245
2246
2247 goto inc_idx;
2248 }
2249
2250 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2251 io_req = &qedf->cmd_mgr->cmds[xid];
2252
2253
2254
2255
2256
2257 if (!io_req)
2258
2259
2260
2261 cpu = 0;
2262 else {
2263 cpu = io_req->cpu;
2264 io_req->int_cpu = smp_processor_id();
2265 }
2266
2267 io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
2268 if (!io_work) {
2269 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
2270 "work for I/O completion.\n");
2271 continue;
2272 }
2273 memset(io_work, 0, sizeof(struct qedf_io_work));
2274
2275 INIT_WORK(&io_work->work, qedf_fp_io_handler);
2276
2277
2278 memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
2279
2280 io_work->qedf = fp->qedf;
2281 io_work->fp = NULL;
2282
2283 queue_work_on(cpu, qedf_io_wq, &io_work->work);
2284
2285inc_idx:
2286 que->cq_cons_idx++;
2287 if (que->cq_cons_idx == fp->cq_num_entries)
2288 que->cq_cons_idx = 0;
2289 new_cqes--;
2290 }
2291
2292 return true;
2293}
2294
2295
2296
2297static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
2298{
2299 struct qedf_fastpath *fp = dev_id;
2300
2301 if (!fp) {
2302 QEDF_ERR(NULL, "fp is null.\n");
2303 return IRQ_HANDLED;
2304 }
2305 if (!fp->sb_info) {
2306 QEDF_ERR(NULL, "fp->sb_info in null.");
2307 return IRQ_HANDLED;
2308 }
2309
2310
2311
2312
2313
2314 qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 );
2315
2316 while (1) {
2317 qedf_process_completions(fp);
2318
2319 if (qedf_fp_has_work(fp) == 0) {
2320
2321 qed_sb_update_sb_idx(fp->sb_info);
2322
2323
2324 rmb();
2325
2326 if (qedf_fp_has_work(fp) == 0) {
2327
2328 qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
2329 return IRQ_HANDLED;
2330 }
2331 }
2332 }
2333
2334
2335 return IRQ_HANDLED;
2336}
2337
2338
2339static void qedf_simd_int_handler(void *cookie)
2340{
2341
2342 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2343
2344 QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
2345}
2346
2347#define QEDF_SIMD_HANDLER_NUM 0
2348static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
2349{
2350 int i;
2351 u16 vector_idx = 0;
2352 u32 vector;
2353
2354 if (qedf->int_info.msix_cnt) {
2355 for (i = 0; i < qedf->int_info.used_cnt; i++) {
2356 vector_idx = i * qedf->dev_info.common.num_hwfns +
2357 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2358 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2359 "Freeing IRQ #%d vector_idx=%d.\n",
2360 i, vector_idx);
2361 vector = qedf->int_info.msix[vector_idx].vector;
2362 synchronize_irq(vector);
2363 irq_set_affinity_hint(vector, NULL);
2364 irq_set_affinity_notifier(vector, NULL);
2365 free_irq(vector, &qedf->fp_array[i]);
2366 }
2367 } else
2368 qed_ops->common->simd_handler_clean(qedf->cdev,
2369 QEDF_SIMD_HANDLER_NUM);
2370
2371 qedf->int_info.used_cnt = 0;
2372 qed_ops->common->set_fp_int(qedf->cdev, 0);
2373}
2374
2375static int qedf_request_msix_irq(struct qedf_ctx *qedf)
2376{
2377 int i, rc, cpu;
2378 u16 vector_idx = 0;
2379 u32 vector;
2380
2381 cpu = cpumask_first(cpu_online_mask);
2382 for (i = 0; i < qedf->num_queues; i++) {
2383 vector_idx = i * qedf->dev_info.common.num_hwfns +
2384 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2385 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2386 "Requesting IRQ #%d vector_idx=%d.\n",
2387 i, vector_idx);
2388 vector = qedf->int_info.msix[vector_idx].vector;
2389 rc = request_irq(vector, qedf_msix_handler, 0, "qedf",
2390 &qedf->fp_array[i]);
2391
2392 if (rc) {
2393 QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
2394 qedf_sync_free_irqs(qedf);
2395 return rc;
2396 }
2397
2398 qedf->int_info.used_cnt++;
2399 rc = irq_set_affinity_hint(vector, get_cpu_mask(cpu));
2400 cpu = cpumask_next(cpu, cpu_online_mask);
2401 }
2402
2403 return 0;
2404}
2405
2406static int qedf_setup_int(struct qedf_ctx *qedf)
2407{
2408 int rc = 0;
2409
2410
2411
2412
2413 rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
2414 if (rc <= 0)
2415 return 0;
2416
2417 rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
2418 if (rc)
2419 return 0;
2420
2421 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
2422 "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
2423 num_online_cpus());
2424
2425 if (qedf->int_info.msix_cnt)
2426 return qedf_request_msix_irq(qedf);
2427
2428 qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
2429 QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
2430 qedf->int_info.used_cnt = 1;
2431
2432 QEDF_ERR(&qedf->dbg_ctx,
2433 "Cannot load driver due to a lack of MSI-X vectors.\n");
2434 return -EINVAL;
2435}
2436
2437
2438static void qedf_recv_frame(struct qedf_ctx *qedf,
2439 struct sk_buff *skb)
2440{
2441 u32 fr_len;
2442 struct fc_lport *lport;
2443 struct fc_frame_header *fh;
2444 struct fcoe_crc_eof crc_eof;
2445 struct fc_frame *fp;
2446 u8 *mac = NULL;
2447 u8 *dest_mac = NULL;
2448 struct fcoe_hdr *hp;
2449 struct qedf_rport *fcport;
2450 struct fc_lport *vn_port;
2451 u32 f_ctl;
2452
2453 lport = qedf->lport;
2454 if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
2455 QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
2456 kfree_skb(skb);
2457 return;
2458 }
2459
2460 if (skb_is_nonlinear(skb))
2461 skb_linearize(skb);
2462 mac = eth_hdr(skb)->h_source;
2463 dest_mac = eth_hdr(skb)->h_dest;
2464
2465
2466 hp = (struct fcoe_hdr *)skb->data;
2467 fh = (struct fc_frame_header *) skb_transport_header(skb);
2468 skb_pull(skb, sizeof(struct fcoe_hdr));
2469 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
2470
2471 fp = (struct fc_frame *)skb;
2472 fc_frame_init(fp);
2473 fr_dev(fp) = lport;
2474 fr_sof(fp) = hp->fcoe_sof;
2475 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
2476 QEDF_INFO(NULL, QEDF_LOG_LL2, "skb_copy_bits failed.\n");
2477 kfree_skb(skb);
2478 return;
2479 }
2480 fr_eof(fp) = crc_eof.fcoe_eof;
2481 fr_crc(fp) = crc_eof.fcoe_crc32;
2482 if (pskb_trim(skb, fr_len)) {
2483 QEDF_INFO(NULL, QEDF_LOG_LL2, "pskb_trim failed.\n");
2484 kfree_skb(skb);
2485 return;
2486 }
2487
2488 fh = fc_frame_header_get(fp);
2489
2490
2491
2492
2493
2494 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
2495 fh->fh_type == FC_TYPE_FCP) {
2496
2497 kfree_skb(skb);
2498 return;
2499 }
2500 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
2501 fh->fh_type == FC_TYPE_ELS) {
2502 switch (fc_frame_payload_op(fp)) {
2503 case ELS_LOGO:
2504 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
2505
2506 kfree_skb(skb);
2507 return;
2508 }
2509 break;
2510 }
2511 }
2512
2513 if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
2514
2515 kfree_skb(skb);
2516 return;
2517 }
2518
2519 if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
2520 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2521 "FC frame d_id mismatch with MAC %pM.\n", dest_mac);
2522 kfree_skb(skb);
2523 return;
2524 }
2525
2526 if (qedf->ctlr.state) {
2527 if (!ether_addr_equal(mac, qedf->ctlr.dest_addr)) {
2528 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2529 "Wrong source address: mac:%pM dest_addr:%pM.\n",
2530 mac, qedf->ctlr.dest_addr);
2531 kfree_skb(skb);
2532 return;
2533 }
2534 }
2535
2536 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
2537
2538
2539
2540
2541
2542
2543 if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
2544 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2545 "Dropping frame due to destination mismatch: lport->port_id=0x%x fh->d_id=0x%x.\n",
2546 lport->port_id, ntoh24(fh->fh_d_id));
2547 kfree_skb(skb);
2548 return;
2549 }
2550
2551 f_ctl = ntoh24(fh->fh_f_ctl);
2552 if ((fh->fh_type == FC_TYPE_BLS) && (f_ctl & FC_FC_SEQ_CTX) &&
2553 (f_ctl & FC_FC_EX_CTX)) {
2554
2555 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2556 "Dropping ABTS response as both SEQ/EX CTX set.\n");
2557 kfree_skb(skb);
2558 return;
2559 }
2560
2561
2562
2563
2564
2565
2566
2567
2568 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
2569
2570 if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
2571 &fcport->flags)) {
2572 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2573 "Connection uploading, dropping fp=%p.\n", fp);
2574 kfree_skb(skb);
2575 return;
2576 }
2577
2578 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
2579 "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
2580 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
2581 fh->fh_type);
2582 if (qedf_dump_frames)
2583 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
2584 1, skb->data, skb->len, false);
2585 fc_exch_recv(lport, fp);
2586}
2587
2588static void qedf_ll2_process_skb(struct work_struct *work)
2589{
2590 struct qedf_skb_work *skb_work =
2591 container_of(work, struct qedf_skb_work, work);
2592 struct qedf_ctx *qedf = skb_work->qedf;
2593 struct sk_buff *skb = skb_work->skb;
2594 struct ethhdr *eh;
2595
2596 if (!qedf) {
2597 QEDF_ERR(NULL, "qedf is NULL\n");
2598 goto err_out;
2599 }
2600
2601 eh = (struct ethhdr *)skb->data;
2602
2603
2604 if (eh->h_proto == htons(ETH_P_8021Q)) {
2605 memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
2606 eh = skb_pull(skb, VLAN_HLEN);
2607 skb_reset_mac_header(skb);
2608 }
2609
2610
2611
2612
2613
2614
2615 if (eh->h_proto == htons(ETH_P_FIP)) {
2616 qedf_fip_recv(qedf, skb);
2617 goto out;
2618 } else if (eh->h_proto == htons(ETH_P_FCOE)) {
2619 __skb_pull(skb, ETH_HLEN);
2620 qedf_recv_frame(qedf, skb);
2621 goto out;
2622 } else
2623 goto err_out;
2624
2625err_out:
2626 kfree_skb(skb);
2627out:
2628 kfree(skb_work);
2629 return;
2630}
2631
2632static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
2633 u32 arg1, u32 arg2)
2634{
2635 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2636 struct qedf_skb_work *skb_work;
2637
2638 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
2639 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2640 "Dropping frame as link state is down.\n");
2641 kfree_skb(skb);
2642 return 0;
2643 }
2644
2645 skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
2646 if (!skb_work) {
2647 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
2648 "dropping frame.\n");
2649 kfree_skb(skb);
2650 return 0;
2651 }
2652
2653 INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
2654 skb_work->skb = skb;
2655 skb_work->qedf = qedf;
2656 queue_work(qedf->ll2_recv_wq, &skb_work->work);
2657
2658 return 0;
2659}
2660
2661static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
2662 .rx_cb = qedf_ll2_rx,
2663 .tx_cb = NULL,
2664};
2665
2666
2667void qedf_fp_io_handler(struct work_struct *work)
2668{
2669 struct qedf_io_work *io_work =
2670 container_of(work, struct qedf_io_work, work);
2671 u32 comp_type;
2672
2673
2674
2675
2676
2677 comp_type = (io_work->cqe.cqe_data >>
2678 FCOE_CQE_CQE_TYPE_SHIFT) &
2679 FCOE_CQE_CQE_TYPE_MASK;
2680 if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
2681 io_work->fp)
2682 fc_exch_recv(io_work->qedf->lport, io_work->fp);
2683 else
2684 qedf_process_cqe(io_work->qedf, &io_work->cqe);
2685
2686 kfree(io_work);
2687}
2688
2689static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
2690 struct qed_sb_info *sb_info, u16 sb_id)
2691{
2692 struct status_block *sb_virt;
2693 dma_addr_t sb_phys;
2694 int ret;
2695
2696 sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
2697 sizeof(struct status_block), &sb_phys, GFP_KERNEL);
2698
2699 if (!sb_virt) {
2700 QEDF_ERR(&qedf->dbg_ctx,
2701 "Status block allocation failed for id = %d.\n",
2702 sb_id);
2703 return -ENOMEM;
2704 }
2705
2706 ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
2707 sb_id, QED_SB_TYPE_STORAGE);
2708
2709 if (ret) {
2710 QEDF_ERR(&qedf->dbg_ctx,
2711 "Status block initialization failed (0x%x) for id = %d.\n",
2712 ret, sb_id);
2713 return ret;
2714 }
2715
2716 return 0;
2717}
2718
2719static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
2720{
2721 if (sb_info->sb_virt)
2722 dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
2723 (void *)sb_info->sb_virt, sb_info->sb_phys);
2724}
2725
2726static void qedf_destroy_sb(struct qedf_ctx *qedf)
2727{
2728 int id;
2729 struct qedf_fastpath *fp = NULL;
2730
2731 for (id = 0; id < qedf->num_queues; id++) {
2732 fp = &(qedf->fp_array[id]);
2733 if (fp->sb_id == QEDF_SB_ID_NULL)
2734 break;
2735 qedf_free_sb(qedf, fp->sb_info);
2736 kfree(fp->sb_info);
2737 }
2738 kfree(qedf->fp_array);
2739}
2740
2741static int qedf_prepare_sb(struct qedf_ctx *qedf)
2742{
2743 int id;
2744 struct qedf_fastpath *fp;
2745 int ret;
2746
2747 qedf->fp_array =
2748 kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
2749 GFP_KERNEL);
2750
2751 if (!qedf->fp_array) {
2752 QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
2753 "failed.\n");
2754 return -ENOMEM;
2755 }
2756
2757 for (id = 0; id < qedf->num_queues; id++) {
2758 fp = &(qedf->fp_array[id]);
2759 fp->sb_id = QEDF_SB_ID_NULL;
2760 fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
2761 if (!fp->sb_info) {
2762 QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
2763 "allocation failed.\n");
2764 goto err;
2765 }
2766 ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
2767 if (ret) {
2768 QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
2769 "initialization failed.\n");
2770 goto err;
2771 }
2772 fp->sb_id = id;
2773 fp->qedf = qedf;
2774 fp->cq_num_entries =
2775 qedf->global_queues[id]->cq_mem_size /
2776 sizeof(struct fcoe_cqe);
2777 }
2778err:
2779 return 0;
2780}
2781
2782void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
2783{
2784 u16 xid;
2785 struct qedf_ioreq *io_req;
2786 struct qedf_rport *fcport;
2787 u32 comp_type;
2788
2789 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2790 FCOE_CQE_CQE_TYPE_MASK;
2791
2792 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2793 io_req = &qedf->cmd_mgr->cmds[xid];
2794
2795
2796 if (!io_req) {
2797 QEDF_ERR(&qedf->dbg_ctx,
2798 "io_req is NULL for xid=0x%x.\n", xid);
2799 return;
2800 }
2801
2802 fcport = io_req->fcport;
2803
2804 if (fcport == NULL) {
2805 QEDF_ERR(&qedf->dbg_ctx,
2806 "fcport is NULL for xid=0x%x io_req=%p.\n",
2807 xid, io_req);
2808 return;
2809 }
2810
2811
2812
2813
2814
2815 if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
2816 QEDF_ERR(&qedf->dbg_ctx,
2817 "Session not offloaded yet, fcport = %p.\n", fcport);
2818 return;
2819 }
2820
2821
2822 switch (comp_type) {
2823 case FCOE_GOOD_COMPLETION_CQE_TYPE:
2824 atomic_inc(&fcport->free_sqes);
2825 switch (io_req->cmd_type) {
2826 case QEDF_SCSI_CMD:
2827 qedf_scsi_completion(qedf, cqe, io_req);
2828 break;
2829 case QEDF_ELS:
2830 qedf_process_els_compl(qedf, cqe, io_req);
2831 break;
2832 case QEDF_TASK_MGMT_CMD:
2833 qedf_process_tmf_compl(qedf, cqe, io_req);
2834 break;
2835 case QEDF_SEQ_CLEANUP:
2836 qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
2837 break;
2838 }
2839 break;
2840 case FCOE_ERROR_DETECTION_CQE_TYPE:
2841 atomic_inc(&fcport->free_sqes);
2842 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2843 "Error detect CQE.\n");
2844 qedf_process_error_detect(qedf, cqe, io_req);
2845 break;
2846 case FCOE_EXCH_CLEANUP_CQE_TYPE:
2847 atomic_inc(&fcport->free_sqes);
2848 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2849 "Cleanup CQE.\n");
2850 qedf_process_cleanup_compl(qedf, cqe, io_req);
2851 break;
2852 case FCOE_ABTS_CQE_TYPE:
2853 atomic_inc(&fcport->free_sqes);
2854 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2855 "Abort CQE.\n");
2856 qedf_process_abts_compl(qedf, cqe, io_req);
2857 break;
2858 case FCOE_DUMMY_CQE_TYPE:
2859 atomic_inc(&fcport->free_sqes);
2860 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2861 "Dummy CQE.\n");
2862 break;
2863 case FCOE_LOCAL_COMP_CQE_TYPE:
2864 atomic_inc(&fcport->free_sqes);
2865 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2866 "Local completion CQE.\n");
2867 break;
2868 case FCOE_WARNING_CQE_TYPE:
2869 atomic_inc(&fcport->free_sqes);
2870 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2871 "Warning CQE.\n");
2872 qedf_process_warning_compl(qedf, cqe, io_req);
2873 break;
2874 case MAX_FCOE_CQE_TYPE:
2875 atomic_inc(&fcport->free_sqes);
2876 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2877 "Max FCoE CQE.\n");
2878 break;
2879 default:
2880 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2881 "Default CQE.\n");
2882 break;
2883 }
2884}
2885
2886static void qedf_free_bdq(struct qedf_ctx *qedf)
2887{
2888 int i;
2889
2890 if (qedf->bdq_pbl_list)
2891 dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
2892 qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
2893
2894 if (qedf->bdq_pbl)
2895 dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
2896 qedf->bdq_pbl, qedf->bdq_pbl_dma);
2897
2898 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2899 if (qedf->bdq[i].buf_addr) {
2900 dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
2901 qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
2902 }
2903 }
2904}
2905
2906static void qedf_free_global_queues(struct qedf_ctx *qedf)
2907{
2908 int i;
2909 struct global_queue **gl = qedf->global_queues;
2910
2911 for (i = 0; i < qedf->num_queues; i++) {
2912 if (!gl[i])
2913 continue;
2914
2915 if (gl[i]->cq)
2916 dma_free_coherent(&qedf->pdev->dev,
2917 gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
2918 if (gl[i]->cq_pbl)
2919 dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
2920 gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
2921
2922 kfree(gl[i]);
2923 }
2924
2925 qedf_free_bdq(qedf);
2926}
2927
2928static int qedf_alloc_bdq(struct qedf_ctx *qedf)
2929{
2930 int i;
2931 struct scsi_bd *pbl;
2932 u64 *list;
2933 dma_addr_t page;
2934
2935
2936 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2937 qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
2938 QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
2939 if (!qedf->bdq[i].buf_addr) {
2940 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
2941 "buffer %d.\n", i);
2942 return -ENOMEM;
2943 }
2944 }
2945
2946
2947 qedf->bdq_pbl_mem_size =
2948 QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
2949 qedf->bdq_pbl_mem_size =
2950 ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
2951
2952 qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
2953 qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
2954 if (!qedf->bdq_pbl) {
2955 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
2956 return -ENOMEM;
2957 }
2958
2959 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
2960 "BDQ PBL addr=0x%p dma=%pad\n",
2961 qedf->bdq_pbl, &qedf->bdq_pbl_dma);
2962
2963
2964
2965
2966
2967 pbl = (struct scsi_bd *)qedf->bdq_pbl;
2968 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2969 pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
2970 pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
2971 pbl->opaque.fcoe_opaque.hi = 0;
2972
2973 pbl->opaque.fcoe_opaque.lo = cpu_to_le32(i);
2974 pbl++;
2975 }
2976
2977
2978 qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
2979 QEDF_PAGE_SIZE,
2980 &qedf->bdq_pbl_list_dma,
2981 GFP_KERNEL);
2982 if (!qedf->bdq_pbl_list) {
2983 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL pages.\n");
2984 return -ENOMEM;
2985 }
2986
2987
2988
2989
2990
2991 qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
2992 QEDF_PAGE_SIZE;
2993 list = (u64 *)qedf->bdq_pbl_list;
2994 page = qedf->bdq_pbl_list_dma;
2995 for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
2996 *list = qedf->bdq_pbl_dma;
2997 list++;
2998 page += QEDF_PAGE_SIZE;
2999 }
3000
3001 return 0;
3002}
3003
3004static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
3005{
3006 u32 *list;
3007 int i;
3008 int status;
3009 u32 *pbl;
3010 dma_addr_t page;
3011 int num_pages;
3012
3013
3014
3015
3016
3017
3018 if (!qedf->num_queues) {
3019 QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
3020 return -ENOMEM;
3021 }
3022
3023
3024
3025
3026
3027 if (!qedf->p_cpuq) {
3028 status = -EINVAL;
3029 QEDF_ERR(&qedf->dbg_ctx, "p_cpuq is NULL.\n");
3030 goto mem_alloc_failure;
3031 }
3032
3033 qedf->global_queues = kzalloc((sizeof(struct global_queue *)
3034 * qedf->num_queues), GFP_KERNEL);
3035 if (!qedf->global_queues) {
3036 QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
3037 "queues array ptr memory\n");
3038 return -ENOMEM;
3039 }
3040 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3041 "qedf->global_queues=%p.\n", qedf->global_queues);
3042
3043
3044 status = qedf_alloc_bdq(qedf);
3045 if (status) {
3046 QEDF_ERR(&qedf->dbg_ctx, "Unable to allocate bdq.\n");
3047 goto mem_alloc_failure;
3048 }
3049
3050
3051 for (i = 0; i < qedf->num_queues; i++) {
3052 qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
3053 GFP_KERNEL);
3054 if (!qedf->global_queues[i]) {
3055 QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocate "
3056 "global queue %d.\n", i);
3057 status = -ENOMEM;
3058 goto mem_alloc_failure;
3059 }
3060
3061 qedf->global_queues[i]->cq_mem_size =
3062 FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3063 qedf->global_queues[i]->cq_mem_size =
3064 ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
3065
3066 qedf->global_queues[i]->cq_pbl_size =
3067 (qedf->global_queues[i]->cq_mem_size /
3068 PAGE_SIZE) * sizeof(void *);
3069 qedf->global_queues[i]->cq_pbl_size =
3070 ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
3071
3072 qedf->global_queues[i]->cq =
3073 dma_alloc_coherent(&qedf->pdev->dev,
3074 qedf->global_queues[i]->cq_mem_size,
3075 &qedf->global_queues[i]->cq_dma,
3076 GFP_KERNEL);
3077
3078 if (!qedf->global_queues[i]->cq) {
3079 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq.\n");
3080 status = -ENOMEM;
3081 goto mem_alloc_failure;
3082 }
3083
3084 qedf->global_queues[i]->cq_pbl =
3085 dma_alloc_coherent(&qedf->pdev->dev,
3086 qedf->global_queues[i]->cq_pbl_size,
3087 &qedf->global_queues[i]->cq_pbl_dma,
3088 GFP_KERNEL);
3089
3090 if (!qedf->global_queues[i]->cq_pbl) {
3091 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq PBL.\n");
3092 status = -ENOMEM;
3093 goto mem_alloc_failure;
3094 }
3095
3096
3097 num_pages = qedf->global_queues[i]->cq_mem_size /
3098 QEDF_PAGE_SIZE;
3099 page = qedf->global_queues[i]->cq_dma;
3100 pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
3101
3102 while (num_pages--) {
3103 *pbl = U64_LO(page);
3104 pbl++;
3105 *pbl = U64_HI(page);
3106 pbl++;
3107 page += QEDF_PAGE_SIZE;
3108 }
3109
3110 qedf->global_queues[i]->cq_cons_idx = 0;
3111 }
3112
3113 list = (u32 *)qedf->p_cpuq;
3114
3115
3116
3117
3118
3119
3120
3121 for (i = 0; i < qedf->num_queues; i++) {
3122 *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
3123 list++;
3124 *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
3125 list++;
3126 *list = U64_LO(0);
3127 list++;
3128 *list = U64_HI(0);
3129 list++;
3130 }
3131
3132 return 0;
3133
3134mem_alloc_failure:
3135 qedf_free_global_queues(qedf);
3136 return status;
3137}
3138
3139static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
3140{
3141 u8 sq_num_pbl_pages;
3142 u32 sq_mem_size;
3143 u32 cq_mem_size;
3144 u32 cq_num_entries;
3145 int rval;
3146
3147
3148
3149
3150
3151
3152
3153
3154 qedf->num_queues = MIN_NUM_CPUS_MSIX(qedf);
3155
3156 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
3157 qedf->num_queues);
3158
3159 qedf->p_cpuq = dma_alloc_coherent(&qedf->pdev->dev,
3160 qedf->num_queues * sizeof(struct qedf_glbl_q_params),
3161 &qedf->hw_p_cpuq, GFP_KERNEL);
3162
3163 if (!qedf->p_cpuq) {
3164 QEDF_ERR(&(qedf->dbg_ctx), "dma_alloc_coherent failed.\n");
3165 return 1;
3166 }
3167
3168 rval = qedf_alloc_global_queues(qedf);
3169 if (rval) {
3170 QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
3171 "failed.\n");
3172 return 1;
3173 }
3174
3175
3176 sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
3177 sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
3178 sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
3179
3180
3181 cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3182 cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
3183 cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
3184
3185 memset(&(qedf->pf_params), 0, sizeof(qedf->pf_params));
3186
3187
3188 qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
3189 qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
3190 qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
3191 (u64)qedf->hw_p_cpuq;
3192 qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
3193
3194 qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
3195
3196 qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
3197 qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
3198
3199
3200 qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
3201
3202 qedf->pf_params.fcoe_pf_params.mtu = 9000;
3203 qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
3204 qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
3205
3206
3207 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
3208 qedf->bdq_pbl_list_dma;
3209 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
3210 qedf->bdq_pbl_list_num_entries;
3211 qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
3212
3213 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3214 "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
3215 qedf->bdq_pbl_list,
3216 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
3217 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
3218
3219 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3220 "cq_num_entries=%d.\n",
3221 qedf->pf_params.fcoe_pf_params.cq_num_entries);
3222
3223 return 0;
3224}
3225
3226
3227static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
3228{
3229 size_t size = 0;
3230
3231 if (qedf->p_cpuq) {
3232 size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
3233 dma_free_coherent(&qedf->pdev->dev, size, qedf->p_cpuq,
3234 qedf->hw_p_cpuq);
3235 }
3236
3237 qedf_free_global_queues(qedf);
3238
3239 kfree(qedf->global_queues);
3240}
3241
3242
3243
3244
3245
3246static const struct pci_device_id qedf_pci_tbl[] = {
3247 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
3248 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
3249 {0}
3250};
3251MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
3252
3253static struct pci_driver qedf_pci_driver = {
3254 .name = QEDF_MODULE_NAME,
3255 .id_table = qedf_pci_tbl,
3256 .probe = qedf_probe,
3257 .remove = qedf_remove,
3258 .shutdown = qedf_shutdown,
3259};
3260
3261static int __qedf_probe(struct pci_dev *pdev, int mode)
3262{
3263 int rc = -EINVAL;
3264 struct fc_lport *lport;
3265 struct qedf_ctx *qedf = NULL;
3266 struct Scsi_Host *host;
3267 bool is_vf = false;
3268 struct qed_ll2_params params;
3269 char host_buf[20];
3270 struct qed_link_params link_params;
3271 int status;
3272 void *task_start, *task_end;
3273 struct qed_slowpath_params slowpath_params;
3274 struct qed_probe_params qed_params;
3275 u16 retry_cnt = 10;
3276
3277
3278
3279
3280
3281retry_probe:
3282 if (mode == QEDF_MODE_RECOVERY)
3283 msleep(2000);
3284
3285 if (mode != QEDF_MODE_RECOVERY) {
3286 lport = libfc_host_alloc(&qedf_host_template,
3287 sizeof(struct qedf_ctx));
3288
3289 if (!lport) {
3290 QEDF_ERR(NULL, "Could not allocate lport.\n");
3291 rc = -ENOMEM;
3292 goto err0;
3293 }
3294
3295 fc_disc_init(lport);
3296
3297
3298 qedf = lport_priv(lport);
3299 set_bit(QEDF_PROBING, &qedf->flags);
3300 qedf->lport = lport;
3301 qedf->ctlr.lp = lport;
3302 qedf->pdev = pdev;
3303 qedf->dbg_ctx.pdev = pdev;
3304 qedf->dbg_ctx.host_no = lport->host->host_no;
3305 spin_lock_init(&qedf->hba_lock);
3306 INIT_LIST_HEAD(&qedf->fcports);
3307 qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
3308 atomic_set(&qedf->num_offloads, 0);
3309 qedf->stop_io_on_error = false;
3310 pci_set_drvdata(pdev, qedf);
3311 init_completion(&qedf->fipvlan_compl);
3312 mutex_init(&qedf->stats_mutex);
3313 mutex_init(&qedf->flush_mutex);
3314 qedf->flogi_pending = 0;
3315
3316 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
3317 "QLogic FastLinQ FCoE Module qedf %s, "
3318 "FW %d.%d.%d.%d\n", QEDF_VERSION,
3319 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
3320 FW_ENGINEERING_VERSION);
3321 } else {
3322
3323 qedf = pci_get_drvdata(pdev);
3324 set_bit(QEDF_PROBING, &qedf->flags);
3325 lport = qedf->lport;
3326 }
3327
3328 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe started.\n");
3329
3330 host = lport->host;
3331
3332
3333 qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
3334 qedf_io_work_cache);
3335 if (qedf->io_mempool == NULL) {
3336 QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
3337 goto err1;
3338 }
3339 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
3340 qedf->io_mempool);
3341
3342 sprintf(host_buf, "qedf_%u_link",
3343 qedf->lport->host->host_no);
3344 qedf->link_update_wq = create_workqueue(host_buf);
3345 INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
3346 INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
3347 INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump);
3348 INIT_DELAYED_WORK(&qedf->stag_work, qedf_stag_change_work);
3349 qedf->fipvlan_retries = qedf_fipvlan_retries;
3350
3351 if (qedf_default_prio > -1) {
3352
3353
3354
3355
3356 qedf->prio = qedf_default_prio;
3357 } else
3358 qedf->prio = QEDF_DEFAULT_PRIO;
3359
3360
3361
3362
3363
3364 memset(&qed_params, 0, sizeof(qed_params));
3365 qed_params.protocol = QED_PROTOCOL_FCOE;
3366 qed_params.dp_module = qedf_dp_module;
3367 qed_params.dp_level = qedf_dp_level;
3368 qed_params.is_vf = is_vf;
3369 qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
3370 if (!qedf->cdev) {
3371 if ((mode == QEDF_MODE_RECOVERY) && retry_cnt) {
3372 QEDF_ERR(&qedf->dbg_ctx,
3373 "Retry %d initialize hardware\n", retry_cnt);
3374 retry_cnt--;
3375 goto retry_probe;
3376 }
3377 QEDF_ERR(&qedf->dbg_ctx, "common probe failed.\n");
3378 rc = -ENODEV;
3379 goto err1;
3380 }
3381
3382
3383 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3384 if (rc) {
3385 QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
3386 goto err1;
3387 }
3388
3389 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
3390 "dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
3391 qedf->dev_info.common.num_hwfns,
3392 qed_ops->common->get_affin_hwfn_idx(qedf->cdev));
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402 rc = qedf_set_fcoe_pf_param(qedf);
3403 if (rc) {
3404 QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
3405 goto err2;
3406 }
3407 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3408
3409
3410 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3411 if (rc) {
3412 QEDF_ERR(&qedf->dbg_ctx, "Failed to fill dev info.\n");
3413 goto err2;
3414 }
3415
3416 if (mode != QEDF_MODE_RECOVERY) {
3417 qedf->devlink = qed_ops->common->devlink_register(qedf->cdev);
3418 if (IS_ERR(qedf->devlink)) {
3419 QEDF_ERR(&qedf->dbg_ctx, "Cannot register devlink\n");
3420 rc = PTR_ERR(qedf->devlink);
3421 qedf->devlink = NULL;
3422 goto err2;
3423 }
3424 }
3425
3426
3427 qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
3428 qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
3429 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3430 "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
3431 qedf->bdq_secondary_prod);
3432
3433 qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
3434
3435 rc = qedf_prepare_sb(qedf);
3436 if (rc) {
3437
3438 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3439 goto err2;
3440 }
3441
3442
3443 slowpath_params.int_mode = QED_INT_MODE_MSIX;
3444 slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
3445 slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
3446 slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
3447 slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
3448 strncpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
3449 rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
3450 if (rc) {
3451 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3452 goto err2;
3453 }
3454
3455
3456
3457
3458
3459 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3460
3461
3462 rc = qedf_setup_int(qedf);
3463 if (rc) {
3464 QEDF_ERR(&qedf->dbg_ctx, "Setup interrupts failed.\n");
3465 goto err3;
3466 }
3467
3468 rc = qed_ops->start(qedf->cdev, &qedf->tasks);
3469 if (rc) {
3470 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
3471 goto err4;
3472 }
3473 task_start = qedf_get_task_mem(&qedf->tasks, 0);
3474 task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
3475 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
3476 "end=%p block_size=%u.\n", task_start, task_end,
3477 qedf->tasks.size);
3478
3479
3480
3481
3482
3483
3484 qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
3485 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3486 "Writing %d to primary and secondary BDQ doorbell registers.\n",
3487 qedf->bdq_prod_idx);
3488 writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
3489 readw(qedf->bdq_primary_prod);
3490 writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
3491 readw(qedf->bdq_secondary_prod);
3492
3493 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3494
3495
3496
3497
3498 ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
3499 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
3500 qedf->mac);
3501
3502
3503
3504
3505
3506
3507
3508
3509 if (qedf->dev_info.wwnn != 0 && qedf->dev_info.wwpn != 0) {
3510 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3511 "Setting WWPN and WWNN from qed dev_info.\n");
3512 qedf->wwnn = qedf->dev_info.wwnn;
3513 qedf->wwpn = qedf->dev_info.wwpn;
3514 } else {
3515 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3516 "Setting WWPN and WWNN using fcoe_wwn_from_mac().\n");
3517 qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
3518 qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
3519 }
3520 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
3521 "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
3522
3523 sprintf(host_buf, "host_%d", host->host_no);
3524 qed_ops->common->set_name(qedf->cdev, host_buf);
3525
3526
3527 qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
3528 if (!qedf->cmd_mgr) {
3529 QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
3530 rc = -ENOMEM;
3531 goto err5;
3532 }
3533
3534 if (mode != QEDF_MODE_RECOVERY) {
3535 host->transportt = qedf_fc_transport_template;
3536 host->max_lun = qedf_max_lun;
3537 host->max_cmd_len = QEDF_MAX_CDB_LEN;
3538 host->max_id = QEDF_MAX_SESSIONS;
3539 host->can_queue = FCOE_PARAMS_NUM_TASKS;
3540 rc = scsi_add_host(host, &pdev->dev);
3541 if (rc) {
3542 QEDF_WARN(&qedf->dbg_ctx,
3543 "Error adding Scsi_Host rc=0x%x.\n", rc);
3544 goto err6;
3545 }
3546 }
3547
3548 memset(¶ms, 0, sizeof(params));
3549 params.mtu = QEDF_LL2_BUF_SIZE;
3550 ether_addr_copy(params.ll2_mac_address, qedf->mac);
3551
3552
3553 snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
3554 qedf->ll2_recv_wq =
3555 create_workqueue(host_buf);
3556 if (!qedf->ll2_recv_wq) {
3557 QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
3558 rc = -ENOMEM;
3559 goto err7;
3560 }
3561
3562#ifdef CONFIG_DEBUG_FS
3563 qedf_dbg_host_init(&(qedf->dbg_ctx), qedf_debugfs_ops,
3564 qedf_dbg_fops);
3565#endif
3566
3567
3568 qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
3569 rc = qed_ops->ll2->start(qedf->cdev, ¶ms);
3570 if (rc) {
3571 QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
3572 goto err7;
3573 }
3574 set_bit(QEDF_LL2_STARTED, &qedf->flags);
3575
3576
3577 qedf->vlan_id = 0;
3578
3579
3580
3581
3582
3583 if (mode != QEDF_MODE_RECOVERY) {
3584
3585 qedf_fcoe_ctlr_setup(qedf);
3586
3587
3588 rc = qedf_lport_setup(qedf);
3589 if (rc) {
3590 QEDF_ERR(&(qedf->dbg_ctx),
3591 "qedf_lport_setup failed.\n");
3592 goto err7;
3593 }
3594 }
3595
3596 sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
3597 qedf->timer_work_queue =
3598 create_workqueue(host_buf);
3599 if (!qedf->timer_work_queue) {
3600 QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
3601 "workqueue.\n");
3602 rc = -ENOMEM;
3603 goto err7;
3604 }
3605
3606
3607 if (mode != QEDF_MODE_RECOVERY) {
3608 sprintf(host_buf, "qedf_%u_dpc",
3609 qedf->lport->host->host_no);
3610 qedf->dpc_wq = create_workqueue(host_buf);
3611 }
3612 INIT_DELAYED_WORK(&qedf->recovery_work, qedf_recovery_handler);
3613
3614
3615
3616
3617
3618 if (mode != QEDF_MODE_RECOVERY) {
3619 qedf->grcdump_size =
3620 qed_ops->common->dbg_all_data_size(qedf->cdev);
3621 if (qedf->grcdump_size) {
3622 rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
3623 qedf->grcdump_size);
3624 if (rc) {
3625 QEDF_ERR(&(qedf->dbg_ctx),
3626 "GRC Dump buffer alloc failed.\n");
3627 qedf->grcdump = NULL;
3628 }
3629
3630 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3631 "grcdump: addr=%p, size=%u.\n",
3632 qedf->grcdump, qedf->grcdump_size);
3633 }
3634 qedf_create_sysfs_ctx_attr(qedf);
3635
3636
3637 spin_lock_init(&qedf->io_trace_lock);
3638 qedf->io_trace_idx = 0;
3639 }
3640
3641 init_completion(&qedf->flogi_compl);
3642
3643 status = qed_ops->common->update_drv_state(qedf->cdev, true);
3644 if (status)
3645 QEDF_ERR(&(qedf->dbg_ctx),
3646 "Failed to send drv state to MFW.\n");
3647
3648 memset(&link_params, 0, sizeof(struct qed_link_params));
3649 link_params.link_up = true;
3650 status = qed_ops->common->set_link(qedf->cdev, &link_params);
3651 if (status)
3652 QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
3653
3654
3655 if (mode == QEDF_MODE_RECOVERY)
3656 fcoe_ctlr_link_up(&qedf->ctlr);
3657 else
3658 fc_fabric_login(lport);
3659
3660 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
3661
3662 clear_bit(QEDF_PROBING, &qedf->flags);
3663
3664
3665 return 0;
3666
3667err7:
3668 if (qedf->ll2_recv_wq)
3669 destroy_workqueue(qedf->ll2_recv_wq);
3670 fc_remove_host(qedf->lport->host);
3671 scsi_remove_host(qedf->lport->host);
3672#ifdef CONFIG_DEBUG_FS
3673 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3674#endif
3675err6:
3676 qedf_cmd_mgr_free(qedf->cmd_mgr);
3677err5:
3678 qed_ops->stop(qedf->cdev);
3679err4:
3680 qedf_free_fcoe_pf_param(qedf);
3681 qedf_sync_free_irqs(qedf);
3682err3:
3683 qed_ops->common->slowpath_stop(qedf->cdev);
3684err2:
3685 qed_ops->common->remove(qedf->cdev);
3686err1:
3687 scsi_host_put(lport->host);
3688err0:
3689 if (qedf) {
3690 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
3691
3692 clear_bit(QEDF_PROBING, &qedf->flags);
3693 }
3694 return rc;
3695}
3696
3697static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
3698{
3699 return __qedf_probe(pdev, QEDF_MODE_NORMAL);
3700}
3701
3702static void __qedf_remove(struct pci_dev *pdev, int mode)
3703{
3704 struct qedf_ctx *qedf;
3705 int rc;
3706
3707 if (!pdev) {
3708 QEDF_ERR(NULL, "pdev is NULL.\n");
3709 return;
3710 }
3711
3712 qedf = pci_get_drvdata(pdev);
3713
3714
3715
3716
3717
3718 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
3719 QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
3720 return;
3721 }
3722
3723 if (mode != QEDF_MODE_RECOVERY)
3724 set_bit(QEDF_UNLOADING, &qedf->flags);
3725
3726
3727 if (mode == QEDF_MODE_RECOVERY)
3728 fcoe_ctlr_link_down(&qedf->ctlr);
3729 else
3730 fc_fabric_logoff(qedf->lport);
3731
3732 if (!qedf_wait_for_upload(qedf))
3733 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
3734
3735#ifdef CONFIG_DEBUG_FS
3736 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3737#endif
3738
3739
3740 cancel_delayed_work_sync(&qedf->link_update);
3741 destroy_workqueue(qedf->link_update_wq);
3742 qedf->link_update_wq = NULL;
3743
3744 if (qedf->timer_work_queue)
3745 destroy_workqueue(qedf->timer_work_queue);
3746
3747
3748 clear_bit(QEDF_LL2_STARTED, &qedf->flags);
3749 qed_ops->ll2->stop(qedf->cdev);
3750 if (qedf->ll2_recv_wq)
3751 destroy_workqueue(qedf->ll2_recv_wq);
3752
3753
3754 qedf_sync_free_irqs(qedf);
3755 qedf_destroy_sb(qedf);
3756
3757
3758
3759
3760
3761 if (mode != QEDF_MODE_RECOVERY) {
3762 qedf_free_grc_dump_buf(&qedf->grcdump);
3763 qedf_remove_sysfs_ctx_attr(qedf);
3764
3765
3766 fcoe_ctlr_destroy(&qedf->ctlr);
3767 fc_lport_destroy(qedf->lport);
3768 fc_remove_host(qedf->lport->host);
3769 scsi_remove_host(qedf->lport->host);
3770 }
3771
3772 qedf_cmd_mgr_free(qedf->cmd_mgr);
3773
3774 if (mode != QEDF_MODE_RECOVERY) {
3775 fc_exch_mgr_free(qedf->lport);
3776 fc_lport_free_stats(qedf->lport);
3777
3778
3779 qedf_wait_for_vport_destroy(qedf);
3780 }
3781
3782
3783
3784
3785
3786 qed_ops->stop(qedf->cdev);
3787
3788 if (mode != QEDF_MODE_RECOVERY) {
3789 if (qedf->dpc_wq) {
3790
3791 destroy_workqueue(qedf->dpc_wq);
3792 qedf->dpc_wq = NULL;
3793 }
3794 }
3795
3796
3797 qedf_free_fcoe_pf_param(qedf);
3798 if (mode != QEDF_MODE_RECOVERY) {
3799 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3800 pci_set_drvdata(pdev, NULL);
3801 }
3802
3803 rc = qed_ops->common->update_drv_state(qedf->cdev, false);
3804 if (rc)
3805 QEDF_ERR(&(qedf->dbg_ctx),
3806 "Failed to send drv state to MFW.\n");
3807
3808 if (mode != QEDF_MODE_RECOVERY && qedf->devlink) {
3809 qed_ops->common->devlink_unregister(qedf->devlink);
3810 qedf->devlink = NULL;
3811 }
3812
3813 qed_ops->common->slowpath_stop(qedf->cdev);
3814 qed_ops->common->remove(qedf->cdev);
3815
3816 mempool_destroy(qedf->io_mempool);
3817
3818
3819 if (mode != QEDF_MODE_RECOVERY)
3820 scsi_host_put(qedf->lport->host);
3821}
3822
3823static void qedf_remove(struct pci_dev *pdev)
3824{
3825
3826 if (!atomic_read(&pdev->enable_cnt))
3827 return;
3828
3829 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3830}
3831
3832void qedf_wq_grcdump(struct work_struct *work)
3833{
3834 struct qedf_ctx *qedf =
3835 container_of(work, struct qedf_ctx, grcdump_work.work);
3836
3837 QEDF_ERR(&(qedf->dbg_ctx), "Collecting GRC dump.\n");
3838 qedf_capture_grc_dump(qedf);
3839}
3840
3841void qedf_schedule_hw_err_handler(void *dev, enum qed_hw_err_type err_type)
3842{
3843 struct qedf_ctx *qedf = dev;
3844
3845 QEDF_ERR(&(qedf->dbg_ctx),
3846 "Hardware error handler scheduled, event=%d.\n",
3847 err_type);
3848
3849 if (test_bit(QEDF_IN_RECOVERY, &qedf->flags)) {
3850 QEDF_ERR(&(qedf->dbg_ctx),
3851 "Already in recovery, not scheduling board disable work.\n");
3852 return;
3853 }
3854
3855 switch (err_type) {
3856 case QED_HW_ERR_FAN_FAIL:
3857 schedule_delayed_work(&qedf->board_disable_work, 0);
3858 break;
3859 case QED_HW_ERR_MFW_RESP_FAIL:
3860 case QED_HW_ERR_HW_ATTN:
3861 case QED_HW_ERR_DMAE_FAIL:
3862 case QED_HW_ERR_FW_ASSERT:
3863
3864 qed_ops->common->attn_clr_enable(qedf->cdev, true);
3865 break;
3866 case QED_HW_ERR_RAMROD_FAIL:
3867
3868 qed_ops->common->attn_clr_enable(qedf->cdev, true);
3869
3870 if (qedf_enable_recovery && qedf->devlink)
3871 qed_ops->common->report_fatal_error(qedf->devlink,
3872 err_type);
3873
3874 break;
3875 default:
3876 break;
3877 }
3878}
3879
3880
3881
3882
3883void qedf_get_protocol_tlv_data(void *dev, void *data)
3884{
3885 struct qedf_ctx *qedf = dev;
3886 struct qed_mfw_tlv_fcoe *fcoe = data;
3887 struct fc_lport *lport;
3888 struct Scsi_Host *host;
3889 struct fc_host_attrs *fc_host;
3890 struct fc_host_statistics *hst;
3891
3892 if (!qedf) {
3893 QEDF_ERR(NULL, "qedf is null.\n");
3894 return;
3895 }
3896
3897 if (test_bit(QEDF_PROBING, &qedf->flags)) {
3898 QEDF_ERR(&qedf->dbg_ctx, "Function is still probing.\n");
3899 return;
3900 }
3901
3902 lport = qedf->lport;
3903 host = lport->host;
3904 fc_host = shost_to_fc_host(host);
3905
3906
3907 hst = qedf_fc_get_host_stats(host);
3908
3909 fcoe->qos_pri_set = true;
3910 fcoe->qos_pri = 3;
3911
3912 fcoe->ra_tov_set = true;
3913 fcoe->ra_tov = lport->r_a_tov;
3914
3915 fcoe->ed_tov_set = true;
3916 fcoe->ed_tov = lport->e_d_tov;
3917
3918 fcoe->npiv_state_set = true;
3919 fcoe->npiv_state = 1;
3920
3921 fcoe->num_npiv_ids_set = true;
3922 fcoe->num_npiv_ids = fc_host->npiv_vports_inuse;
3923
3924
3925 if (qedf->ctlr.sel_fcf) {
3926 fcoe->switch_name_set = true;
3927 u64_to_wwn(qedf->ctlr.sel_fcf->switch_name, fcoe->switch_name);
3928 }
3929
3930 fcoe->port_state_set = true;
3931
3932 if (lport->link_up)
3933 fcoe->port_state = QED_MFW_TLV_PORT_STATE_FABRIC;
3934 else
3935 fcoe->port_state = QED_MFW_TLV_PORT_STATE_OFFLINE;
3936
3937 fcoe->link_failures_set = true;
3938 fcoe->link_failures = (u16)hst->link_failure_count;
3939
3940 fcoe->fcoe_txq_depth_set = true;
3941 fcoe->fcoe_rxq_depth_set = true;
3942 fcoe->fcoe_rxq_depth = FCOE_PARAMS_NUM_TASKS;
3943 fcoe->fcoe_txq_depth = FCOE_PARAMS_NUM_TASKS;
3944
3945 fcoe->fcoe_rx_frames_set = true;
3946 fcoe->fcoe_rx_frames = hst->rx_frames;
3947
3948 fcoe->fcoe_tx_frames_set = true;
3949 fcoe->fcoe_tx_frames = hst->tx_frames;
3950
3951 fcoe->fcoe_rx_bytes_set = true;
3952 fcoe->fcoe_rx_bytes = hst->fcp_input_megabytes * 1000000;
3953
3954 fcoe->fcoe_tx_bytes_set = true;
3955 fcoe->fcoe_tx_bytes = hst->fcp_output_megabytes * 1000000;
3956
3957 fcoe->crc_count_set = true;
3958 fcoe->crc_count = hst->invalid_crc_count;
3959
3960 fcoe->tx_abts_set = true;
3961 fcoe->tx_abts = hst->fcp_packet_aborts;
3962
3963 fcoe->tx_lun_rst_set = true;
3964 fcoe->tx_lun_rst = qedf->lun_resets;
3965
3966 fcoe->abort_task_sets_set = true;
3967 fcoe->abort_task_sets = qedf->packet_aborts;
3968
3969 fcoe->scsi_busy_set = true;
3970 fcoe->scsi_busy = qedf->busy;
3971
3972 fcoe->scsi_tsk_full_set = true;
3973 fcoe->scsi_tsk_full = qedf->task_set_fulls;
3974}
3975
3976
3977void qedf_stag_change_work(struct work_struct *work)
3978{
3979 struct qedf_ctx *qedf =
3980 container_of(work, struct qedf_ctx, stag_work.work);
3981
3982 printk_ratelimited("[%s]:[%s:%d]:%d: Performing software context reset.",
3983 dev_name(&qedf->pdev->dev), __func__, __LINE__,
3984 qedf->dbg_ctx.host_no);
3985 qedf_ctx_soft_reset(qedf->lport);
3986}
3987
3988static void qedf_shutdown(struct pci_dev *pdev)
3989{
3990 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3991}
3992
3993
3994
3995
3996static void qedf_schedule_recovery_handler(void *dev)
3997{
3998 struct qedf_ctx *qedf = dev;
3999
4000 QEDF_ERR(&qedf->dbg_ctx, "Recovery handler scheduled.\n");
4001 schedule_delayed_work(&qedf->recovery_work, 0);
4002}
4003
4004static void qedf_recovery_handler(struct work_struct *work)
4005{
4006 struct qedf_ctx *qedf =
4007 container_of(work, struct qedf_ctx, recovery_work.work);
4008
4009 if (test_and_set_bit(QEDF_IN_RECOVERY, &qedf->flags))
4010 return;
4011
4012
4013
4014
4015
4016 qed_ops->common->recovery_prolog(qedf->cdev);
4017
4018 QEDF_ERR(&qedf->dbg_ctx, "Recovery work start.\n");
4019 __qedf_remove(qedf->pdev, QEDF_MODE_RECOVERY);
4020
4021
4022
4023
4024
4025 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
4026 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
4027 __qedf_probe(qedf->pdev, QEDF_MODE_RECOVERY);
4028 clear_bit(QEDF_IN_RECOVERY, &qedf->flags);
4029 QEDF_ERR(&qedf->dbg_ctx, "Recovery work complete.\n");
4030}
4031
4032
4033void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
4034{
4035 struct qedf_ctx *qedf;
4036
4037 if (!dev) {
4038 QEDF_INFO(NULL, QEDF_LOG_EVT,
4039 "dev is NULL so ignoring get_generic_tlv_data request.\n");
4040 return;
4041 }
4042 qedf = (struct qedf_ctx *)dev;
4043
4044 memset(data, 0, sizeof(struct qed_generic_tlvs));
4045 ether_addr_copy(data->mac[0], qedf->mac);
4046}
4047
4048
4049
4050
4051
4052static int __init qedf_init(void)
4053{
4054 int ret;
4055
4056
4057 if (qedf_debug == QEDF_LOG_DEFAULT)
4058 qedf_debug = QEDF_DEFAULT_LOG_MASK;
4059
4060
4061
4062
4063
4064 if (qedf_default_prio > -1)
4065 if (qedf_default_prio > 7) {
4066 qedf_default_prio = QEDF_DEFAULT_PRIO;
4067 QEDF_ERR(NULL, "FCoE/FIP priority out of range, resetting to %d.\n",
4068 QEDF_DEFAULT_PRIO);
4069 }
4070
4071
4072 QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
4073 QEDF_VERSION);
4074
4075
4076 qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
4077 sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
4078 if (qedf_io_work_cache == NULL) {
4079 QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
4080 goto err1;
4081 }
4082 QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
4083 qedf_io_work_cache);
4084
4085 qed_ops = qed_get_fcoe_ops();
4086 if (!qed_ops) {
4087 QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
4088 goto err1;
4089 }
4090
4091#ifdef CONFIG_DEBUG_FS
4092 qedf_dbg_init("qedf");
4093#endif
4094
4095 qedf_fc_transport_template =
4096 fc_attach_transport(&qedf_fc_transport_fn);
4097 if (!qedf_fc_transport_template) {
4098 QEDF_ERR(NULL, "Could not register with FC transport\n");
4099 goto err2;
4100 }
4101
4102 qedf_fc_vport_transport_template =
4103 fc_attach_transport(&qedf_fc_vport_transport_fn);
4104 if (!qedf_fc_vport_transport_template) {
4105 QEDF_ERR(NULL, "Could not register vport template with FC "
4106 "transport\n");
4107 goto err3;
4108 }
4109
4110 qedf_io_wq = create_workqueue("qedf_io_wq");
4111 if (!qedf_io_wq) {
4112 QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
4113 goto err4;
4114 }
4115
4116 qedf_cb_ops.get_login_failures = qedf_get_login_failures;
4117
4118 ret = pci_register_driver(&qedf_pci_driver);
4119 if (ret) {
4120 QEDF_ERR(NULL, "Failed to register driver\n");
4121 goto err5;
4122 }
4123
4124 return 0;
4125
4126err5:
4127 destroy_workqueue(qedf_io_wq);
4128err4:
4129 fc_release_transport(qedf_fc_vport_transport_template);
4130err3:
4131 fc_release_transport(qedf_fc_transport_template);
4132err2:
4133#ifdef CONFIG_DEBUG_FS
4134 qedf_dbg_exit();
4135#endif
4136 qed_put_fcoe_ops();
4137err1:
4138 return -EINVAL;
4139}
4140
4141static void __exit qedf_cleanup(void)
4142{
4143 pci_unregister_driver(&qedf_pci_driver);
4144
4145 destroy_workqueue(qedf_io_wq);
4146
4147 fc_release_transport(qedf_fc_vport_transport_template);
4148 fc_release_transport(qedf_fc_transport_template);
4149#ifdef CONFIG_DEBUG_FS
4150 qedf_dbg_exit();
4151#endif
4152 qed_put_fcoe_ops();
4153
4154 kmem_cache_destroy(qedf_io_work_cache);
4155}
4156
4157MODULE_LICENSE("GPL");
4158MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx FCoE Module");
4159MODULE_AUTHOR("QLogic Corporation");
4160MODULE_VERSION(QEDF_VERSION);
4161module_init(qedf_init);
4162module_exit(qedf_cleanup);
4163