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 <scsi/libfc.h>
17#include <scsi/scsi_host.h>
18#include <scsi/fc_frame.h>
19#include <linux/if_ether.h>
20#include <linux/if_vlan.h>
21#include <linux/cpu.h>
22#include "qedf.h"
23#include "qedf_dbg.h"
24#include <uapi/linux/pci_regs.h>
25
26const struct qed_fcoe_ops *qed_ops;
27
28static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id);
29static void qedf_remove(struct pci_dev *pdev);
30
31
32
33
34static unsigned int qedf_dev_loss_tmo = 60;
35module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
36MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
37 "remote ports (default 60)");
38
39uint qedf_debug = QEDF_LOG_INFO;
40module_param_named(debug, qedf_debug, uint, S_IRUGO);
41MODULE_PARM_DESC(debug, " Debug mask. Pass '1' to enable default debugging"
42 " mask");
43
44static uint qedf_fipvlan_retries = 60;
45module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
46MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
47 "before giving up (default 60)");
48
49static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
50module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
51MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
52 "(default 1002).");
53
54static int qedf_default_prio = -1;
55module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
56MODULE_PARM_DESC(default_prio, " Override 802.1q priority for FIP and FCoE"
57 " traffic (value between 0 and 7, default 3).");
58
59uint qedf_dump_frames;
60module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
61MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
62 "(default off)");
63
64static uint qedf_queue_depth;
65module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
66MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
67 "by the qedf driver. Default is 0 (use OS default).");
68
69uint qedf_io_tracing;
70module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
71MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
72 "into trace buffer. (default off).");
73
74static uint qedf_max_lun = MAX_FIBRE_LUNS;
75module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
76MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
77 "supports. (default 0xffffffff)");
78
79uint qedf_link_down_tmo;
80module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
81MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
82 "link is down by N seconds.");
83
84bool qedf_retry_delay;
85module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
86MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
87 "delay handling (default off).");
88
89static bool qedf_dcbx_no_wait;
90module_param_named(dcbx_no_wait, qedf_dcbx_no_wait, bool, S_IRUGO | S_IWUSR);
91MODULE_PARM_DESC(dcbx_no_wait, " Do not wait for DCBX convergence to start "
92 "sending FIP VLAN requests on link up (Default: off).");
93
94static uint qedf_dp_module;
95module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
96MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
97 "qed module during probe.");
98
99static uint qedf_dp_level = QED_LEVEL_NOTICE;
100module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
101MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
102 "during probe (0-3: 0 more verbose).");
103
104struct workqueue_struct *qedf_io_wq;
105
106static struct fcoe_percpu_s qedf_global;
107static DEFINE_SPINLOCK(qedf_global_lock);
108
109static struct kmem_cache *qedf_io_work_cache;
110
111void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
112{
113 qedf->vlan_id = vlan_id;
114 qedf->vlan_id |= qedf->prio << VLAN_PRIO_SHIFT;
115 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Setting vlan_id=%04x "
116 "prio=%d.\n", vlan_id, qedf->prio);
117}
118
119
120static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
121{
122 int rc;
123
124 while (qedf->fipvlan_retries--) {
125
126 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
127 QEDF_ERR(&qedf->dbg_ctx, "Link not up.\n");
128 return false;
129 }
130
131 if (qedf->vlan_id > 0)
132 return true;
133
134 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
135 "Retry %d.\n", qedf->fipvlan_retries);
136 init_completion(&qedf->fipvlan_compl);
137 qedf_fcoe_send_vlan_req(qedf);
138 rc = wait_for_completion_timeout(&qedf->fipvlan_compl,
139 1 * HZ);
140 if (rc > 0 &&
141 (atomic_read(&qedf->link_state) == QEDF_LINK_UP)) {
142 fcoe_ctlr_link_up(&qedf->ctlr);
143 return true;
144 }
145 }
146
147 return false;
148}
149
150static void qedf_handle_link_update(struct work_struct *work)
151{
152 struct qedf_ctx *qedf =
153 container_of(work, struct qedf_ctx, link_update.work);
154 int rc;
155
156 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Entered. link_state=%d.\n",
157 atomic_read(&qedf->link_state));
158
159 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
160 rc = qedf_initiate_fipvlan_req(qedf);
161 if (rc)
162 return;
163
164 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
165 qedf->vlan_id = 0;
166 return;
167 }
168
169
170
171
172
173
174 QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
175 "response, falling back to default VLAN %d.\n",
176 qedf_fallback_vlan);
177 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
178
179
180
181
182
183 eth_zero_addr(qedf->data_src_addr);
184 fcoe_ctlr_link_up(&qedf->ctlr);
185 } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
186
187
188
189
190
191 atomic_set(&qedf->link_down_tmo_valid, 0);
192 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
193 "Calling fcoe_ctlr_link_down().\n");
194 fcoe_ctlr_link_down(&qedf->ctlr);
195 if (qedf_wait_for_upload(qedf) == false)
196 QEDF_ERR(&qedf->dbg_ctx,
197 "Could not upload all sessions.\n");
198
199 qedf->fipvlan_retries = qedf_fipvlan_retries;
200 }
201}
202
203#define QEDF_FCOE_MAC_METHOD_GRANGED_MAC 1
204#define QEDF_FCOE_MAC_METHOD_FCF_MAP 2
205#define QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC 3
206static void qedf_set_data_src_addr(struct qedf_ctx *qedf, struct fc_frame *fp)
207{
208 u8 *granted_mac;
209 struct fc_frame_header *fh = fc_frame_header_get(fp);
210 u8 fc_map[3];
211 int method = 0;
212
213
214 granted_mac = fr_cb(fp)->granted_mac;
215
216
217
218
219
220
221
222
223
224
225
226 if (!is_zero_ether_addr(granted_mac)) {
227 ether_addr_copy(qedf->data_src_addr, granted_mac);
228 method = QEDF_FCOE_MAC_METHOD_GRANGED_MAC;
229 } else if (qedf->ctlr.sel_fcf->fc_map != 0) {
230 hton24(fc_map, qedf->ctlr.sel_fcf->fc_map);
231 qedf->data_src_addr[0] = fc_map[0];
232 qedf->data_src_addr[1] = fc_map[1];
233 qedf->data_src_addr[2] = fc_map[2];
234 qedf->data_src_addr[3] = fh->fh_d_id[0];
235 qedf->data_src_addr[4] = fh->fh_d_id[1];
236 qedf->data_src_addr[5] = fh->fh_d_id[2];
237 method = QEDF_FCOE_MAC_METHOD_FCF_MAP;
238 } else {
239 fc_fcoe_set_mac(qedf->data_src_addr, fh->fh_d_id);
240 method = QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC;
241 }
242
243 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
244 "QEDF data_src_mac=%pM method=%d.\n", qedf->data_src_addr, method);
245}
246
247static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
248 void *arg)
249{
250 struct fc_exch *exch = fc_seq_exch(seq);
251 struct fc_lport *lport = exch->lp;
252 struct qedf_ctx *qedf = lport_priv(lport);
253
254 if (!qedf) {
255 QEDF_ERR(NULL, "qedf is NULL.\n");
256 return;
257 }
258
259
260
261
262
263 if (IS_ERR(fp)) {
264 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
265 "fp has IS_ERR() set.\n");
266 goto skip_stat;
267 }
268
269
270 if (fc_frame_payload_op(fp) == ELS_LS_RJT)
271 qedf->flogi_failed++;
272 else if (fc_frame_payload_op(fp) == ELS_LS_ACC) {
273
274 qedf_set_data_src_addr(qedf, fp);
275 }
276
277
278 complete(&qedf->flogi_compl);
279
280skip_stat:
281
282 fc_lport_flogi_resp(seq, fp, lport);
283}
284
285static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
286 struct fc_frame *fp, unsigned int op,
287 void (*resp)(struct fc_seq *,
288 struct fc_frame *,
289 void *),
290 void *arg, u32 timeout)
291{
292 struct qedf_ctx *qedf = lport_priv(lport);
293
294
295
296
297
298 if (resp == fc_lport_flogi_resp) {
299 qedf->flogi_cnt++;
300 return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
301 arg, timeout);
302 }
303
304 return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
305}
306
307int qedf_send_flogi(struct qedf_ctx *qedf)
308{
309 struct fc_lport *lport;
310 struct fc_frame *fp;
311
312 lport = qedf->lport;
313
314 if (!lport->tt.elsct_send)
315 return -EINVAL;
316
317 fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
318 if (!fp) {
319 QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
320 return -ENOMEM;
321 }
322
323 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
324 "Sending FLOGI to reestablish session with switch.\n");
325 lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
326 ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
327
328 init_completion(&qedf->flogi_compl);
329
330 return 0;
331}
332
333struct qedf_tmp_rdata_item {
334 struct fc_rport_priv *rdata;
335 struct list_head list;
336};
337
338
339
340
341
342
343static void qedf_link_recovery(struct work_struct *work)
344{
345 struct qedf_ctx *qedf =
346 container_of(work, struct qedf_ctx, link_recovery.work);
347 struct qedf_rport *fcport;
348 struct fc_rport_priv *rdata;
349 struct qedf_tmp_rdata_item *rdata_item, *tmp_rdata_item;
350 bool rc;
351 int retries = 30;
352 int rval, i;
353 struct list_head rdata_login_list;
354
355 INIT_LIST_HEAD(&rdata_login_list);
356
357 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
358 "Link down tmo did not expire.\n");
359
360
361
362
363
364 qedf->ctlr.state = FIP_ST_LINK_WAIT;
365 fcoe_ctlr_link_down(&qedf->ctlr);
366
367
368
369
370
371 fcoe_ctlr_link_up(&qedf->ctlr);
372
373
374 qedf->fipvlan_retries = qedf_fipvlan_retries;
375 rc = qedf_initiate_fipvlan_req(qedf);
376
377 if (!rc)
378 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
379
380
381
382
383
384 while (retries > 0) {
385 if (qedf->ctlr.sel_fcf) {
386 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
387 "FCF reselected, proceeding with FLOGI.\n");
388 break;
389 }
390 msleep(500);
391 retries--;
392 }
393
394 if (retries < 1) {
395 QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
396 "FCF selection.\n");
397 return;
398 }
399
400 rval = qedf_send_flogi(qedf);
401 if (rval)
402 return;
403
404
405 i = wait_for_completion_timeout(&qedf->flogi_compl,
406 qedf->lport->r_a_tov);
407 if (i == 0) {
408 QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
409 return;
410 }
411
412
413
414
415
416 rcu_read_lock();
417 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
418 rdata = fcport->rdata;
419 if (rdata == NULL)
420 continue;
421 rdata_item = kzalloc(sizeof(struct qedf_tmp_rdata_item),
422 GFP_ATOMIC);
423 if (!rdata_item)
424 continue;
425 if (kref_get_unless_zero(&rdata->kref)) {
426 rdata_item->rdata = rdata;
427 list_add(&rdata_item->list, &rdata_login_list);
428 } else
429 kfree(rdata_item);
430 }
431 rcu_read_unlock();
432
433
434
435
436 list_for_each_entry_safe(rdata_item, tmp_rdata_item, &rdata_login_list,
437 list) {
438 list_del(&rdata_item->list);
439 fc_rport_login(rdata_item->rdata);
440 kref_put(&rdata_item->rdata->kref, fc_rport_destroy);
441 kfree(rdata_item);
442 }
443}
444
445static void qedf_update_link_speed(struct qedf_ctx *qedf,
446 struct qed_link_output *link)
447{
448 struct fc_lport *lport = qedf->lport;
449
450 lport->link_speed = FC_PORTSPEED_UNKNOWN;
451 lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
452
453
454 switch (link->speed) {
455 case 10000:
456 lport->link_speed = FC_PORTSPEED_10GBIT;
457 break;
458 case 25000:
459 lport->link_speed = FC_PORTSPEED_25GBIT;
460 break;
461 case 40000:
462 lport->link_speed = FC_PORTSPEED_40GBIT;
463 break;
464 case 50000:
465 lport->link_speed = FC_PORTSPEED_50GBIT;
466 break;
467 case 100000:
468 lport->link_speed = FC_PORTSPEED_100GBIT;
469 break;
470 default:
471 lport->link_speed = FC_PORTSPEED_UNKNOWN;
472 break;
473 }
474
475
476
477
478
479 if (link->supported_caps & SUPPORTED_10000baseKR_Full)
480 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
481 if (link->supported_caps & SUPPORTED_25000baseKR_Full)
482 lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
483 if (link->supported_caps & SUPPORTED_40000baseLR4_Full)
484 lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
485 if (link->supported_caps & SUPPORTED_50000baseKR2_Full)
486 lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
487 if (link->supported_caps & SUPPORTED_100000baseKR4_Full)
488 lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
489 fc_host_supported_speeds(lport->host) = lport->link_supported_speeds;
490}
491
492static void qedf_link_update(void *dev, struct qed_link_output *link)
493{
494 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
495
496 if (link->link_up) {
497 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
498 QEDF_INFO((&qedf->dbg_ctx), QEDF_LOG_DISC,
499 "Ignoring link up event as link is already up.\n");
500 return;
501 }
502 QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
503 link->speed / 1000);
504
505
506 cancel_delayed_work(&qedf->link_update);
507
508 atomic_set(&qedf->link_state, QEDF_LINK_UP);
509 qedf_update_link_speed(qedf, link);
510
511 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE ||
512 qedf_dcbx_no_wait) {
513 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
514 "DCBx done.\n");
515 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
516 queue_delayed_work(qedf->link_update_wq,
517 &qedf->link_recovery, 0);
518 else
519 queue_delayed_work(qedf->link_update_wq,
520 &qedf->link_update, 0);
521 atomic_set(&qedf->link_down_tmo_valid, 0);
522 }
523
524 } else {
525 QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
526
527 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
528 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
529
530
531
532
533 if (qedf_link_down_tmo > 0) {
534 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
535 "Starting link down tmo.\n");
536 atomic_set(&qedf->link_down_tmo_valid, 1);
537 }
538 qedf->vlan_id = 0;
539 qedf_update_link_speed(qedf, link);
540 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
541 qedf_link_down_tmo * HZ);
542 }
543}
544
545
546static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
547{
548 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
549 u8 tmp_prio;
550
551 QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
552 "prio=%d.\n", get->operational.valid, get->operational.enabled,
553 get->operational.app_prio.fcoe);
554
555 if (get->operational.enabled && get->operational.valid) {
556
557 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
558 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
559 "DCBX already set on link up.\n");
560 return;
561 }
562
563 atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
564
565
566
567
568
569
570
571
572 tmp_prio = get->operational.app_prio.fcoe;
573 if (qedf_default_prio > -1)
574 qedf->prio = qedf_default_prio;
575 else if (tmp_prio < 0 || tmp_prio > 7) {
576 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
577 "FIP/FCoE prio %d out of range, setting to %d.\n",
578 tmp_prio, QEDF_DEFAULT_PRIO);
579 qedf->prio = QEDF_DEFAULT_PRIO;
580 } else
581 qedf->prio = tmp_prio;
582
583 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP &&
584 !qedf_dcbx_no_wait) {
585 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
586 queue_delayed_work(qedf->link_update_wq,
587 &qedf->link_recovery, 0);
588 else
589 queue_delayed_work(qedf->link_update_wq,
590 &qedf->link_update, 0);
591 atomic_set(&qedf->link_down_tmo_valid, 0);
592 }
593 }
594
595}
596
597static u32 qedf_get_login_failures(void *cookie)
598{
599 struct qedf_ctx *qedf;
600
601 qedf = (struct qedf_ctx *)cookie;
602 return qedf->flogi_failed;
603}
604
605static struct qed_fcoe_cb_ops qedf_cb_ops = {
606 {
607 .link_update = qedf_link_update,
608 .dcbx_aen = qedf_dcbx_handler,
609 .get_generic_tlv_data = qedf_get_generic_tlv_data,
610 .get_protocol_tlv_data = qedf_get_protocol_tlv_data,
611 }
612};
613
614
615
616
617
618static struct scsi_transport_template *qedf_fc_transport_template;
619static struct scsi_transport_template *qedf_fc_vport_transport_template;
620
621
622
623
624static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
625{
626 struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
627 struct fc_lport *lport;
628 struct qedf_ctx *qedf;
629 struct qedf_ioreq *io_req;
630 struct fc_rport_libfc_priv *rp = rport->dd_data;
631 struct fc_rport_priv *rdata;
632 struct qedf_rport *fcport = NULL;
633 int rc = FAILED;
634 int wait_count = 100;
635 int refcount = 0;
636 int rval;
637 int got_ref = 0;
638
639 lport = shost_priv(sc_cmd->device->host);
640 qedf = (struct qedf_ctx *)lport_priv(lport);
641
642
643 fcport = (struct qedf_rport *)&rp[1];
644 rdata = fcport->rdata;
645 if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
646 QEDF_ERR(&qedf->dbg_ctx, "stale rport, sc_cmd=%p\n", sc_cmd);
647 rc = 1;
648 goto out;
649 }
650
651
652 io_req = (struct qedf_ioreq *)sc_cmd->SCp.ptr;
653 if (!io_req) {
654 QEDF_ERR(&qedf->dbg_ctx,
655 "sc_cmd not queued with lld, sc_cmd=%p op=0x%02x, port_id=%06x\n",
656 sc_cmd, sc_cmd->cmnd[0],
657 rdata->ids.port_id);
658 rc = SUCCESS;
659 goto drop_rdata_kref;
660 }
661
662 rval = kref_get_unless_zero(&io_req->refcount);
663 if (rval)
664 got_ref = 1;
665
666
667 if (!rval || io_req->sc_cmd != sc_cmd) {
668 QEDF_ERR(&qedf->dbg_ctx,
669 "Freed/Incorrect io_req, io_req->sc_cmd=%p, sc_cmd=%p, port_id=%06x, bailing out.\n",
670 io_req->sc_cmd, sc_cmd, rdata->ids.port_id);
671
672 goto drop_rdata_kref;
673 }
674
675 if (fc_remote_port_chkready(rport)) {
676 refcount = kref_read(&io_req->refcount);
677 QEDF_ERR(&qedf->dbg_ctx,
678 "rport not ready, io_req=%p, xid=0x%x sc_cmd=%p op=0x%02x, refcount=%d, port_id=%06x\n",
679 io_req, io_req->xid, sc_cmd, sc_cmd->cmnd[0],
680 refcount, rdata->ids.port_id);
681
682 goto drop_rdata_kref;
683 }
684
685 rc = fc_block_scsi_eh(sc_cmd);
686 if (rc)
687 goto drop_rdata_kref;
688
689 if (test_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags)) {
690 QEDF_ERR(&qedf->dbg_ctx,
691 "Connection uploading, xid=0x%x., port_id=%06x\n",
692 io_req->xid, rdata->ids.port_id);
693 while (io_req->sc_cmd && (wait_count != 0)) {
694 msleep(100);
695 wait_count--;
696 }
697 if (wait_count) {
698 QEDF_ERR(&qedf->dbg_ctx, "ABTS succeeded\n");
699 rc = SUCCESS;
700 } else {
701 QEDF_ERR(&qedf->dbg_ctx, "ABTS failed\n");
702 rc = FAILED;
703 }
704 goto drop_rdata_kref;
705 }
706
707 if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
708 QEDF_ERR(&qedf->dbg_ctx, "link not ready.\n");
709 goto drop_rdata_kref;
710 }
711
712 QEDF_ERR(&qedf->dbg_ctx,
713 "Aborting io_req=%p sc_cmd=%p xid=0x%x fp_idx=%d, port_id=%06x.\n",
714 io_req, sc_cmd, io_req->xid, io_req->fp_idx,
715 rdata->ids.port_id);
716
717 if (qedf->stop_io_on_error) {
718 qedf_stop_all_io(qedf);
719 rc = SUCCESS;
720 goto drop_rdata_kref;
721 }
722
723 init_completion(&io_req->abts_done);
724 rval = qedf_initiate_abts(io_req, true);
725 if (rval) {
726 QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
727
728
729
730
731 rc = SUCCESS;
732 qedf_scsi_done(qedf, io_req, DID_ERROR);
733 goto drop_rdata_kref;
734 }
735
736 wait_for_completion(&io_req->abts_done);
737
738 if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
739 io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
740 io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
741
742
743
744
745
746 rc = SUCCESS;
747 } else {
748
749 rc = FAILED;
750 }
751
752 if (rc == SUCCESS)
753 QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
754 io_req->xid);
755 else
756 QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
757 io_req->xid);
758
759drop_rdata_kref:
760 kref_put(&rdata->kref, fc_rport_destroy);
761out:
762 if (got_ref)
763 kref_put(&io_req->refcount, qedf_release_cmd);
764 return rc;
765}
766
767static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
768{
769 QEDF_ERR(NULL, "%d:0:%d:%lld: TARGET RESET Issued...",
770 sc_cmd->device->host->host_no, sc_cmd->device->id,
771 sc_cmd->device->lun);
772 return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
773}
774
775static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
776{
777 QEDF_ERR(NULL, "%d:0:%d:%lld: LUN RESET Issued... ",
778 sc_cmd->device->host->host_no, sc_cmd->device->id,
779 sc_cmd->device->lun);
780 return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
781}
782
783bool qedf_wait_for_upload(struct qedf_ctx *qedf)
784{
785 struct qedf_rport *fcport = NULL;
786 int wait_cnt = 120;
787
788 while (wait_cnt--) {
789 if (atomic_read(&qedf->num_offloads))
790 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
791 "Waiting for all uploads to complete num_offloads = 0x%x.\n",
792 atomic_read(&qedf->num_offloads));
793 else
794 return true;
795 msleep(500);
796 }
797
798 rcu_read_lock();
799 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
800 if (fcport && test_bit(QEDF_RPORT_SESSION_READY,
801 &fcport->flags)) {
802 if (fcport->rdata)
803 QEDF_ERR(&qedf->dbg_ctx,
804 "Waiting for fcport %p portid=%06x.\n",
805 fcport, fcport->rdata->ids.port_id);
806 } else {
807 QEDF_ERR(&qedf->dbg_ctx,
808 "Waiting for fcport %p.\n", fcport);
809 }
810 }
811 rcu_read_unlock();
812 return false;
813
814}
815
816
817void qedf_ctx_soft_reset(struct fc_lport *lport)
818{
819 struct qedf_ctx *qedf;
820 struct qed_link_output if_link;
821
822 if (lport->vport) {
823 QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n");
824 return;
825 }
826
827 qedf = lport_priv(lport);
828
829
830 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
831 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
832 "Queuing link down work.\n");
833 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
834 0);
835
836 if (qedf_wait_for_upload(qedf) == false) {
837 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
838 WARN_ON(atomic_read(&qedf->num_offloads));
839 }
840
841
842 qed_ops->common->get_link(qedf->cdev, &if_link);
843
844 if (!if_link.link_up) {
845 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
846 "Physical link is not up.\n");
847 return;
848 }
849
850 flush_delayed_work(&qedf->link_update);
851 msleep(500);
852
853 atomic_set(&qedf->link_state, QEDF_LINK_UP);
854 qedf->vlan_id = 0;
855 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
856 "Queue link up work.\n");
857 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
858 0);
859}
860
861
862static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
863{
864 struct fc_lport *lport;
865 struct qedf_ctx *qedf;
866
867 lport = shost_priv(sc_cmd->device->host);
868 qedf = lport_priv(lport);
869
870 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
871 test_bit(QEDF_UNLOADING, &qedf->flags))
872 return FAILED;
873
874 QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
875
876 qedf_ctx_soft_reset(lport);
877
878 return SUCCESS;
879}
880
881static int qedf_slave_configure(struct scsi_device *sdev)
882{
883 if (qedf_queue_depth) {
884 scsi_change_queue_depth(sdev, qedf_queue_depth);
885 }
886
887 return 0;
888}
889
890static struct scsi_host_template qedf_host_template = {
891 .module = THIS_MODULE,
892 .name = QEDF_MODULE_NAME,
893 .this_id = -1,
894 .cmd_per_lun = 32,
895 .max_sectors = 0xffff,
896 .queuecommand = qedf_queuecommand,
897 .shost_attrs = qedf_host_attrs,
898 .eh_abort_handler = qedf_eh_abort,
899 .eh_device_reset_handler = qedf_eh_device_reset,
900 .eh_target_reset_handler = qedf_eh_target_reset,
901 .eh_host_reset_handler = qedf_eh_host_reset,
902 .slave_configure = qedf_slave_configure,
903 .dma_boundary = QED_HW_DMA_BOUNDARY,
904 .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
905 .can_queue = FCOE_PARAMS_NUM_TASKS,
906 .change_queue_depth = scsi_change_queue_depth,
907};
908
909static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
910{
911 int rc;
912
913 spin_lock(&qedf_global_lock);
914 rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
915 spin_unlock(&qedf_global_lock);
916
917 return rc;
918}
919
920static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
921{
922 struct qedf_rport *fcport;
923 struct fc_rport_priv *rdata;
924
925 rcu_read_lock();
926 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
927 rdata = fcport->rdata;
928 if (rdata == NULL)
929 continue;
930 if (rdata->ids.port_id == port_id) {
931 rcu_read_unlock();
932 return fcport;
933 }
934 }
935 rcu_read_unlock();
936
937
938 return NULL;
939}
940
941
942static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
943{
944 struct fc_frame_header *fh;
945 int rc = 0;
946
947 fh = fc_frame_header_get(fp);
948 if ((fh->fh_type == FC_TYPE_ELS) &&
949 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
950 switch (fc_frame_payload_op(fp)) {
951 case ELS_ADISC:
952 qedf_send_adisc(fcport, fp);
953 rc = 1;
954 break;
955 }
956 }
957
958 return rc;
959}
960
961
962
963
964
965static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
966{
967 struct fc_lport *base_lport;
968 struct qedf_ctx *qedf;
969 struct ethhdr *eh;
970 struct fcoe_crc_eof *cp;
971 struct sk_buff *skb;
972 struct fc_frame_header *fh;
973 struct fcoe_hdr *hp;
974 u8 sof, eof;
975 u32 crc;
976 unsigned int hlen, tlen, elen;
977 int wlen;
978 struct fc_stats *stats;
979 struct fc_lport *tmp_lport;
980 struct fc_lport *vn_port = NULL;
981 struct qedf_rport *fcport;
982 int rc;
983 u16 vlan_tci = 0;
984
985 qedf = (struct qedf_ctx *)lport_priv(lport);
986
987 fh = fc_frame_header_get(fp);
988 skb = fp_skb(fp);
989
990
991 if (lport->vport)
992 base_lport = shost_priv(vport_to_shost(lport->vport));
993 else
994 base_lport = lport;
995
996
997 if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
998 vn_port = base_lport;
999 } else {
1000
1001
1002
1003 list_for_each_entry(tmp_lport, &base_lport->vports, list) {
1004 if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
1005 vn_port = tmp_lport;
1006 break;
1007 }
1008 }
1009 }
1010 if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
1011 struct fc_rport_priv *rdata = NULL;
1012
1013 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
1014 "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
1015 kfree_skb(skb);
1016 rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
1017 if (rdata) {
1018 rdata->retries = lport->max_rport_retry_count;
1019 kref_put(&rdata->kref, fc_rport_destroy);
1020 }
1021 return -EINVAL;
1022 }
1023
1024
1025 if (!qedf->ctlr.sel_fcf) {
1026 kfree_skb(skb);
1027 return 0;
1028 }
1029
1030 if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
1031 QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
1032 kfree_skb(skb);
1033 return 0;
1034 }
1035
1036 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
1037 QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
1038 kfree_skb(skb);
1039 return 0;
1040 }
1041
1042 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1043 if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
1044 return 0;
1045 }
1046
1047
1048 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
1049
1050 if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1051 rc = qedf_xmit_l2_frame(fcport, fp);
1052
1053
1054
1055
1056 if (rc)
1057 return 0;
1058 }
1059
1060 sof = fr_sof(fp);
1061 eof = fr_eof(fp);
1062
1063 elen = sizeof(struct ethhdr);
1064 hlen = sizeof(struct fcoe_hdr);
1065 tlen = sizeof(struct fcoe_crc_eof);
1066 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
1067
1068 skb->ip_summed = CHECKSUM_NONE;
1069 crc = fcoe_fc_crc(fp);
1070
1071
1072 if (skb_is_nonlinear(skb)) {
1073 skb_frag_t *frag;
1074
1075 if (qedf_get_paged_crc_eof(skb, tlen)) {
1076 kfree_skb(skb);
1077 return -ENOMEM;
1078 }
1079 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
1080 cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
1081 } else {
1082 cp = skb_put(skb, tlen);
1083 }
1084
1085 memset(cp, 0, sizeof(*cp));
1086 cp->fcoe_eof = eof;
1087 cp->fcoe_crc32 = cpu_to_le32(~crc);
1088 if (skb_is_nonlinear(skb)) {
1089 kunmap_atomic(cp);
1090 cp = NULL;
1091 }
1092
1093
1094
1095 skb_push(skb, elen + hlen);
1096 skb_reset_mac_header(skb);
1097 skb_reset_network_header(skb);
1098 skb->mac_len = elen;
1099 skb->protocol = htons(ETH_P_FCOE);
1100
1101
1102
1103
1104
1105 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
1106
1107
1108 eh = eth_hdr(skb);
1109 eh->h_proto = htons(ETH_P_FCOE);
1110 if (qedf->ctlr.map_dest)
1111 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
1112 else
1113
1114 ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
1115
1116
1117 ether_addr_copy(eh->h_source, qedf->data_src_addr);
1118
1119 hp = (struct fcoe_hdr *)(eh + 1);
1120 memset(hp, 0, sizeof(*hp));
1121 if (FC_FCOE_VER)
1122 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
1123 hp->fcoe_sof = sof;
1124
1125
1126 stats = per_cpu_ptr(lport->stats, get_cpu());
1127 stats->TxFrames++;
1128 stats->TxWords += wlen;
1129 put_cpu();
1130
1131
1132 __vlan_hwaccel_get_tag(skb, &vlan_tci);
1133
1134
1135 fr_dev(fp) = lport;
1136 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
1137 "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
1138 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
1139 vlan_tci);
1140 if (qedf_dump_frames)
1141 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
1142 1, skb->data, skb->len, false);
1143 rc = qed_ops->ll2->start_xmit(qedf->cdev, skb, 0);
1144 if (rc) {
1145 QEDF_ERR(&qedf->dbg_ctx, "start_xmit failed rc = %d.\n", rc);
1146 kfree_skb(skb);
1147 return rc;
1148 }
1149
1150 return 0;
1151}
1152
1153static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1154{
1155 int rval = 0;
1156 u32 *pbl;
1157 dma_addr_t page;
1158 int num_pages;
1159
1160
1161 fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
1162 fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
1163 fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
1164 sizeof(void *);
1165 fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
1166
1167 fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1168 &fcport->sq_dma, GFP_KERNEL);
1169 if (!fcport->sq) {
1170 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue.\n");
1171 rval = 1;
1172 goto out;
1173 }
1174
1175 fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
1176 fcport->sq_pbl_size,
1177 &fcport->sq_pbl_dma, GFP_KERNEL);
1178 if (!fcport->sq_pbl) {
1179 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue PBL.\n");
1180 rval = 1;
1181 goto out_free_sq;
1182 }
1183
1184
1185 num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
1186 page = fcport->sq_dma;
1187 pbl = (u32 *)fcport->sq_pbl;
1188
1189 while (num_pages--) {
1190 *pbl = U64_LO(page);
1191 pbl++;
1192 *pbl = U64_HI(page);
1193 pbl++;
1194 page += QEDF_PAGE_SIZE;
1195 }
1196
1197 return rval;
1198
1199out_free_sq:
1200 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
1201 fcport->sq_dma);
1202out:
1203 return rval;
1204}
1205
1206static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1207{
1208 if (fcport->sq_pbl)
1209 dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
1210 fcport->sq_pbl, fcport->sq_pbl_dma);
1211 if (fcport->sq)
1212 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1213 fcport->sq, fcport->sq_dma);
1214}
1215
1216static int qedf_offload_connection(struct qedf_ctx *qedf,
1217 struct qedf_rport *fcport)
1218{
1219 struct qed_fcoe_params_offload conn_info;
1220 u32 port_id;
1221 int rval;
1222 uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
1223
1224 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
1225 "portid=%06x.\n", fcport->rdata->ids.port_id);
1226 rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
1227 &fcport->fw_cid, &fcport->p_doorbell);
1228 if (rval) {
1229 QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
1230 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1231 rval = 1;
1232 goto out;
1233 }
1234
1235 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
1236 "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
1237 fcport->fw_cid, fcport->handle);
1238
1239 memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
1240
1241
1242 conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
1243
1244 conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
1245 conn_info.sq_next_page_addr =
1246 (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
1247
1248
1249 ether_addr_copy(conn_info.src_mac, qedf->data_src_addr);
1250
1251 ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
1252
1253 conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
1254 conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov / 20;
1255 conn_info.rec_tov_timer_val = 3;
1256 conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
1257
1258
1259 conn_info.vlan_tag = qedf->vlan_id <<
1260 FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
1261 conn_info.vlan_tag |=
1262 qedf->prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
1263 conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
1264 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
1265
1266
1267 port_id = fc_host_port_id(qedf->lport->host);
1268 fcport->sid = port_id;
1269 conn_info.s_id.addr_hi = (port_id & 0x000000FF);
1270 conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1271 conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1272
1273 conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
1274
1275
1276 port_id = fcport->rdata->rport->port_id;
1277 conn_info.d_id.addr_hi = (port_id & 0x000000FF);
1278 conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1279 conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1280
1281 conn_info.def_q_idx = 0;
1282
1283
1284 if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
1285 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
1286 "Enable CONF, REC for portid=%06x.\n",
1287 fcport->rdata->ids.port_id);
1288 conn_info.flags |= 1 <<
1289 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
1290 conn_info.flags |=
1291 ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
1292 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
1293 }
1294
1295 rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
1296 if (rval) {
1297 QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
1298 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1299 goto out_free_conn;
1300 } else
1301 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
1302 "succeeded portid=%06x total_sqe=%d.\n",
1303 fcport->rdata->ids.port_id, total_sqe);
1304
1305 spin_lock_init(&fcport->rport_lock);
1306 atomic_set(&fcport->free_sqes, total_sqe);
1307 return 0;
1308out_free_conn:
1309 qed_ops->release_conn(qedf->cdev, fcport->handle);
1310out:
1311 return rval;
1312}
1313
1314#define QEDF_TERM_BUFF_SIZE 10
1315static void qedf_upload_connection(struct qedf_ctx *qedf,
1316 struct qedf_rport *fcport)
1317{
1318 void *term_params;
1319 dma_addr_t term_params_dma;
1320
1321
1322
1323
1324
1325 term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
1326 &term_params_dma, GFP_KERNEL);
1327
1328 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
1329 "port_id=%06x.\n", fcport->rdata->ids.port_id);
1330
1331 qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
1332 qed_ops->release_conn(qedf->cdev, fcport->handle);
1333
1334 dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
1335 term_params_dma);
1336}
1337
1338static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
1339 struct qedf_rport *fcport)
1340{
1341 struct fc_rport_priv *rdata = fcport->rdata;
1342
1343 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
1344 fcport->rdata->ids.port_id);
1345
1346
1347 qedf_flush_active_ios(fcport, -1);
1348
1349 if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
1350 qedf_upload_connection(qedf, fcport);
1351 qedf_free_sq(qedf, fcport);
1352 fcport->rdata = NULL;
1353 fcport->qedf = NULL;
1354 kref_put(&rdata->kref, fc_rport_destroy);
1355}
1356
1357
1358
1359
1360
1361
1362static void qedf_rport_event_handler(struct fc_lport *lport,
1363 struct fc_rport_priv *rdata,
1364 enum fc_rport_event event)
1365{
1366 struct qedf_ctx *qedf = lport_priv(lport);
1367 struct fc_rport *rport = rdata->rport;
1368 struct fc_rport_libfc_priv *rp;
1369 struct qedf_rport *fcport;
1370 u32 port_id;
1371 int rval;
1372 unsigned long flags;
1373
1374 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
1375 "port_id = 0x%x\n", event, rdata->ids.port_id);
1376
1377 switch (event) {
1378 case RPORT_EV_READY:
1379 if (!rport) {
1380 QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
1381 break;
1382 }
1383
1384 rp = rport->dd_data;
1385 fcport = (struct qedf_rport *)&rp[1];
1386 fcport->qedf = qedf;
1387
1388 if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
1389 QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
1390 "portid=0x%x as max number of offloaded sessions "
1391 "reached.\n", rdata->ids.port_id);
1392 return;
1393 }
1394
1395
1396
1397
1398
1399 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1400 QEDF_WARN(&(qedf->dbg_ctx), "Session already "
1401 "offloaded, portid=0x%x.\n",
1402 rdata->ids.port_id);
1403 return;
1404 }
1405
1406 if (rport->port_id == FC_FID_DIR_SERV) {
1407
1408
1409
1410
1411
1412
1413 QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
1414 "exist for dir server port_id=%x\n",
1415 rdata->ids.port_id);
1416 break;
1417 }
1418
1419 if (rdata->spp_type != FC_TYPE_FCP) {
1420 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1421 "Not offloading since spp type isn't FCP\n");
1422 break;
1423 }
1424 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1425 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1426 "Not FCP target so not offloading\n");
1427 break;
1428 }
1429
1430
1431 kref_get(&rdata->kref);
1432 fcport->rdata = rdata;
1433 fcport->rport = rport;
1434
1435 rval = qedf_alloc_sq(qedf, fcport);
1436 if (rval) {
1437 qedf_cleanup_fcport(qedf, fcport);
1438 break;
1439 }
1440
1441
1442 if (rdata->flags & FC_RP_FLAGS_RETRY &&
1443 rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
1444 !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
1445 fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
1446 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1447 "portid=%06x is a TAPE device.\n",
1448 rdata->ids.port_id);
1449 } else {
1450 fcport->dev_type = QEDF_RPORT_TYPE_DISK;
1451 }
1452
1453 rval = qedf_offload_connection(qedf, fcport);
1454 if (rval) {
1455 qedf_cleanup_fcport(qedf, fcport);
1456 break;
1457 }
1458
1459
1460 spin_lock_irqsave(&qedf->hba_lock, flags);
1461 list_add_rcu(&fcport->peers, &qedf->fcports);
1462 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1463
1464
1465
1466
1467
1468 set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
1469 atomic_inc(&qedf->num_offloads);
1470
1471 break;
1472 case RPORT_EV_LOGO:
1473 case RPORT_EV_FAILED:
1474 case RPORT_EV_STOP:
1475 port_id = rdata->ids.port_id;
1476 if (port_id == FC_FID_DIR_SERV)
1477 break;
1478
1479 if (!rport) {
1480 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1481 "port_id=%x - rport notcreated Yet!!\n", port_id);
1482 break;
1483 }
1484 rp = rport->dd_data;
1485
1486
1487
1488
1489 fcport = (struct qedf_rport *)&rp[1];
1490
1491 spin_lock_irqsave(&fcport->rport_lock, flags);
1492
1493 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags) &&
1494 !test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1495 &fcport->flags)) {
1496 set_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1497 &fcport->flags);
1498 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1499 qedf_cleanup_fcport(qedf, fcport);
1500
1501
1502
1503
1504 spin_lock_irqsave(&qedf->hba_lock, flags);
1505 list_del_rcu(&fcport->peers);
1506 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1507
1508 clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1509 &fcport->flags);
1510 atomic_dec(&qedf->num_offloads);
1511 } else {
1512 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1513 }
1514 break;
1515
1516 case RPORT_EV_NONE:
1517 break;
1518 }
1519}
1520
1521static void qedf_abort_io(struct fc_lport *lport)
1522{
1523
1524}
1525
1526static void qedf_fcp_cleanup(struct fc_lport *lport)
1527{
1528
1529
1530
1531
1532
1533}
1534
1535static struct libfc_function_template qedf_lport_template = {
1536 .frame_send = qedf_xmit,
1537 .fcp_abort_io = qedf_abort_io,
1538 .fcp_cleanup = qedf_fcp_cleanup,
1539 .rport_event_callback = qedf_rport_event_handler,
1540 .elsct_send = qedf_elsct_send,
1541};
1542
1543static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
1544{
1545 fcoe_ctlr_init(&qedf->ctlr, FIP_MODE_AUTO);
1546
1547 qedf->ctlr.send = qedf_fip_send;
1548 qedf->ctlr.get_src_addr = qedf_get_src_mac;
1549 ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
1550}
1551
1552static void qedf_setup_fdmi(struct qedf_ctx *qedf)
1553{
1554 struct fc_lport *lport = qedf->lport;
1555 struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
1556 u8 buf[8];
1557 int i, pos;
1558
1559
1560
1561
1562 lport->fdmi_enabled = 1;
1563
1564
1565
1566
1567
1568
1569
1570 pos = pci_find_ext_capability(qedf->pdev, PCI_EXT_CAP_ID_DSN);
1571 if (pos) {
1572 pos += 4;
1573 for (i = 0; i < 8; i++)
1574 pci_read_config_byte(qedf->pdev, pos + i, &buf[i]);
1575
1576 snprintf(fc_host->serial_number,
1577 sizeof(fc_host->serial_number),
1578 "%02X%02X%02X%02X%02X%02X%02X%02X",
1579 buf[7], buf[6], buf[5], buf[4],
1580 buf[3], buf[2], buf[1], buf[0]);
1581 } else
1582 snprintf(fc_host->serial_number,
1583 sizeof(fc_host->serial_number), "Unknown");
1584
1585 snprintf(fc_host->manufacturer,
1586 sizeof(fc_host->manufacturer), "%s", "Cavium Inc.");
1587
1588 snprintf(fc_host->model, sizeof(fc_host->model), "%s", "QL41000");
1589
1590 snprintf(fc_host->model_description, sizeof(fc_host->model_description),
1591 "%s", "QLogic FastLinQ QL41000 Series 10/25/40/50GGbE Controller"
1592 "(FCoE)");
1593
1594 snprintf(fc_host->hardware_version, sizeof(fc_host->hardware_version),
1595 "Rev %d", qedf->pdev->revision);
1596
1597 snprintf(fc_host->driver_version, sizeof(fc_host->driver_version),
1598 "%s", QEDF_VERSION);
1599
1600 snprintf(fc_host->firmware_version, sizeof(fc_host->firmware_version),
1601 "%d.%d.%d.%d", FW_MAJOR_VERSION, FW_MINOR_VERSION,
1602 FW_REVISION_VERSION, FW_ENGINEERING_VERSION);
1603}
1604
1605static int qedf_lport_setup(struct qedf_ctx *qedf)
1606{
1607 struct fc_lport *lport = qedf->lport;
1608
1609 lport->link_up = 0;
1610 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1611 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1612 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1613 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1614 lport->boot_time = jiffies;
1615 lport->e_d_tov = 2 * 1000;
1616 lport->r_a_tov = 10 * 1000;
1617
1618
1619 lport->does_npiv = 1;
1620 fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
1621
1622 fc_set_wwnn(lport, qedf->wwnn);
1623 fc_set_wwpn(lport, qedf->wwpn);
1624
1625 if (fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0)) {
1626 QEDF_ERR(&qedf->dbg_ctx,
1627 "fcoe_libfc_config failed.\n");
1628 return -ENOMEM;
1629 }
1630
1631
1632 fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_PARAMS_NUM_TASKS,
1633 0xfffe, NULL);
1634
1635 if (fc_lport_init_stats(lport))
1636 return -ENOMEM;
1637
1638
1639 fc_lport_config(lport);
1640
1641
1642 fc_set_mfs(lport, QEDF_MFS);
1643 fc_host_maxframe_size(lport->host) = lport->mfs;
1644
1645
1646 fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
1647
1648
1649 snprintf(fc_host_symbolic_name(lport->host), 256,
1650 "QLogic %s v%s", QEDF_MODULE_NAME, QEDF_VERSION);
1651
1652 qedf_setup_fdmi(qedf);
1653
1654 return 0;
1655}
1656
1657
1658
1659
1660
1661static int qedf_vport_libfc_config(struct fc_vport *vport,
1662 struct fc_lport *lport)
1663{
1664 lport->link_up = 0;
1665 lport->qfull = 0;
1666 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1667 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1668 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1669 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1670 lport->boot_time = jiffies;
1671 lport->e_d_tov = 2 * 1000;
1672 lport->r_a_tov = 10 * 1000;
1673 lport->does_npiv = 1;
1674
1675
1676 if (fc_lport_init_stats(lport))
1677 return -ENOMEM;
1678
1679
1680 fc_lport_config(lport);
1681
1682
1683 lport->crc_offload = 0;
1684 lport->seq_offload = 0;
1685 lport->lro_enabled = 0;
1686 lport->lro_xid = 0;
1687 lport->lso_max = 0;
1688
1689 return 0;
1690}
1691
1692static int qedf_vport_create(struct fc_vport *vport, bool disabled)
1693{
1694 struct Scsi_Host *shost = vport_to_shost(vport);
1695 struct fc_lport *n_port = shost_priv(shost);
1696 struct fc_lport *vn_port;
1697 struct qedf_ctx *base_qedf = lport_priv(n_port);
1698 struct qedf_ctx *vport_qedf;
1699
1700 char buf[32];
1701 int rc = 0;
1702
1703 rc = fcoe_validate_vport_create(vport);
1704 if (rc) {
1705 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1706 QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
1707 "WWPN (0x%s) already exists.\n", buf);
1708 goto err1;
1709 }
1710
1711 if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
1712 QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
1713 "because link is not up.\n");
1714 rc = -EIO;
1715 goto err1;
1716 }
1717
1718 vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
1719 if (!vn_port) {
1720 QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
1721 "for vport.\n");
1722 rc = -ENOMEM;
1723 goto err1;
1724 }
1725
1726 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1727 QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
1728 buf);
1729
1730
1731 vport_qedf = lport_priv(vn_port);
1732 memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
1733
1734
1735 vport_qedf->lport = vn_port;
1736
1737 vport_qedf->hba_lock = base_qedf->hba_lock;
1738 vport_qedf->pdev = base_qedf->pdev;
1739 vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
1740 init_completion(&vport_qedf->flogi_compl);
1741 INIT_LIST_HEAD(&vport_qedf->fcports);
1742
1743 rc = qedf_vport_libfc_config(vport, vn_port);
1744 if (rc) {
1745 QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
1746 "for lport stats.\n");
1747 goto err2;
1748 }
1749
1750 fc_set_wwnn(vn_port, vport->node_name);
1751 fc_set_wwpn(vn_port, vport->port_name);
1752 vport_qedf->wwnn = vn_port->wwnn;
1753 vport_qedf->wwpn = vn_port->wwpn;
1754
1755 vn_port->host->transportt = qedf_fc_vport_transport_template;
1756 vn_port->host->can_queue = FCOE_PARAMS_NUM_TASKS;
1757 vn_port->host->max_lun = qedf_max_lun;
1758 vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
1759 vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
1760
1761 rc = scsi_add_host(vn_port->host, &vport->dev);
1762 if (rc) {
1763 QEDF_WARN(&base_qedf->dbg_ctx,
1764 "Error adding Scsi_Host rc=0x%x.\n", rc);
1765 goto err2;
1766 }
1767
1768
1769 fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
1770
1771
1772 memcpy(&vn_port->tt, &qedf_lport_template,
1773 sizeof(qedf_lport_template));
1774 fc_exch_init(vn_port);
1775 fc_elsct_init(vn_port);
1776 fc_lport_init(vn_port);
1777 fc_disc_init(vn_port);
1778 fc_disc_config(vn_port, vn_port);
1779
1780
1781
1782 shost = vport_to_shost(vport);
1783 n_port = shost_priv(shost);
1784 fc_exch_mgr_list_clone(n_port, vn_port);
1785
1786
1787 fc_set_mfs(vn_port, QEDF_MFS);
1788
1789 fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
1790
1791 if (disabled) {
1792 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1793 } else {
1794 vn_port->boot_time = jiffies;
1795 fc_fabric_login(vn_port);
1796 fc_vport_setlink(vn_port);
1797 }
1798
1799 QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
1800 vn_port);
1801
1802
1803 vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
1804 vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
1805
1806err2:
1807 scsi_host_put(vn_port->host);
1808err1:
1809 return rc;
1810}
1811
1812static int qedf_vport_destroy(struct fc_vport *vport)
1813{
1814 struct Scsi_Host *shost = vport_to_shost(vport);
1815 struct fc_lport *n_port = shost_priv(shost);
1816 struct fc_lport *vn_port = vport->dd_data;
1817 struct qedf_ctx *qedf = lport_priv(vn_port);
1818
1819 if (!qedf) {
1820 QEDF_ERR(NULL, "qedf is NULL.\n");
1821 goto out;
1822 }
1823
1824
1825 set_bit(QEDF_UNLOADING, &qedf->flags);
1826
1827 mutex_lock(&n_port->lp_mutex);
1828 list_del(&vn_port->list);
1829 mutex_unlock(&n_port->lp_mutex);
1830
1831 fc_fabric_logoff(vn_port);
1832 fc_lport_destroy(vn_port);
1833
1834
1835 fc_remove_host(vn_port->host);
1836 scsi_remove_host(vn_port->host);
1837
1838
1839
1840
1841
1842 if (vn_port->state == LPORT_ST_READY)
1843 fc_exch_mgr_free(vn_port);
1844
1845
1846 fc_lport_free_stats(vn_port);
1847
1848
1849 if (vn_port->host)
1850 scsi_host_put(vn_port->host);
1851
1852out:
1853 return 0;
1854}
1855
1856static int qedf_vport_disable(struct fc_vport *vport, bool disable)
1857{
1858 struct fc_lport *lport = vport->dd_data;
1859
1860 if (disable) {
1861 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1862 fc_fabric_logoff(lport);
1863 } else {
1864 lport->boot_time = jiffies;
1865 fc_fabric_login(lport);
1866 fc_vport_setlink(lport);
1867 }
1868 return 0;
1869}
1870
1871
1872
1873
1874
1875
1876
1877static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
1878{
1879 struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
1880
1881 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
1882 "Entered.\n");
1883 while (fc_host->npiv_vports_inuse > 0) {
1884 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
1885 "Waiting for all vports to be reaped.\n");
1886 msleep(1000);
1887 }
1888}
1889
1890
1891
1892
1893
1894
1895
1896
1897static int qedf_fcoe_reset(struct Scsi_Host *shost)
1898{
1899 struct fc_lport *lport = shost_priv(shost);
1900
1901 qedf_ctx_soft_reset(lport);
1902 return 0;
1903}
1904
1905static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
1906 *shost)
1907{
1908 struct fc_host_statistics *qedf_stats;
1909 struct fc_lport *lport = shost_priv(shost);
1910 struct qedf_ctx *qedf = lport_priv(lport);
1911 struct qed_fcoe_stats *fw_fcoe_stats;
1912
1913 qedf_stats = fc_get_host_stats(shost);
1914
1915
1916 if (lport->vport)
1917 goto out;
1918
1919 fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
1920 if (!fw_fcoe_stats) {
1921 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
1922 "fw_fcoe_stats.\n");
1923 goto out;
1924 }
1925
1926 mutex_lock(&qedf->stats_mutex);
1927
1928
1929 qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
1930
1931
1932
1933
1934
1935
1936
1937 qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
1938 fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
1939 fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
1940 qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
1941 fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
1942 fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
1943 qedf_stats->fcp_input_megabytes +=
1944 do_div(fw_fcoe_stats->fcoe_rx_byte_cnt, 1000000);
1945 qedf_stats->fcp_output_megabytes +=
1946 do_div(fw_fcoe_stats->fcoe_tx_byte_cnt, 1000000);
1947 qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
1948 qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
1949 qedf_stats->invalid_crc_count +=
1950 fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
1951 qedf_stats->dumped_frames =
1952 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
1953 qedf_stats->error_frames +=
1954 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
1955 qedf_stats->fcp_input_requests += qedf->input_requests;
1956 qedf_stats->fcp_output_requests += qedf->output_requests;
1957 qedf_stats->fcp_control_requests += qedf->control_requests;
1958 qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
1959 qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
1960
1961 mutex_unlock(&qedf->stats_mutex);
1962 kfree(fw_fcoe_stats);
1963out:
1964 return qedf_stats;
1965}
1966
1967static struct fc_function_template qedf_fc_transport_fn = {
1968 .show_host_node_name = 1,
1969 .show_host_port_name = 1,
1970 .show_host_supported_classes = 1,
1971 .show_host_supported_fc4s = 1,
1972 .show_host_active_fc4s = 1,
1973 .show_host_maxframe_size = 1,
1974
1975 .show_host_port_id = 1,
1976 .show_host_supported_speeds = 1,
1977 .get_host_speed = fc_get_host_speed,
1978 .show_host_speed = 1,
1979 .show_host_port_type = 1,
1980 .get_host_port_state = fc_get_host_port_state,
1981 .show_host_port_state = 1,
1982 .show_host_symbolic_name = 1,
1983
1984
1985
1986
1987
1988 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
1989 sizeof(struct qedf_rport)),
1990 .show_rport_maxframe_size = 1,
1991 .show_rport_supported_classes = 1,
1992 .show_host_fabric_name = 1,
1993 .show_starget_node_name = 1,
1994 .show_starget_port_name = 1,
1995 .show_starget_port_id = 1,
1996 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
1997 .show_rport_dev_loss_tmo = 1,
1998 .get_fc_host_stats = qedf_fc_get_host_stats,
1999 .issue_fc_host_lip = qedf_fcoe_reset,
2000 .vport_create = qedf_vport_create,
2001 .vport_delete = qedf_vport_destroy,
2002 .vport_disable = qedf_vport_disable,
2003 .bsg_request = fc_lport_bsg_request,
2004};
2005
2006static struct fc_function_template qedf_fc_vport_transport_fn = {
2007 .show_host_node_name = 1,
2008 .show_host_port_name = 1,
2009 .show_host_supported_classes = 1,
2010 .show_host_supported_fc4s = 1,
2011 .show_host_active_fc4s = 1,
2012 .show_host_maxframe_size = 1,
2013 .show_host_port_id = 1,
2014 .show_host_supported_speeds = 1,
2015 .get_host_speed = fc_get_host_speed,
2016 .show_host_speed = 1,
2017 .show_host_port_type = 1,
2018 .get_host_port_state = fc_get_host_port_state,
2019 .show_host_port_state = 1,
2020 .show_host_symbolic_name = 1,
2021 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2022 sizeof(struct qedf_rport)),
2023 .show_rport_maxframe_size = 1,
2024 .show_rport_supported_classes = 1,
2025 .show_host_fabric_name = 1,
2026 .show_starget_node_name = 1,
2027 .show_starget_port_name = 1,
2028 .show_starget_port_id = 1,
2029 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2030 .show_rport_dev_loss_tmo = 1,
2031 .get_fc_host_stats = fc_get_host_stats,
2032 .issue_fc_host_lip = qedf_fcoe_reset,
2033 .bsg_request = fc_lport_bsg_request,
2034};
2035
2036static bool qedf_fp_has_work(struct qedf_fastpath *fp)
2037{
2038 struct qedf_ctx *qedf = fp->qedf;
2039 struct global_queue *que;
2040 struct qed_sb_info *sb_info = fp->sb_info;
2041 struct status_block_e4 *sb = sb_info->sb_virt;
2042 u16 prod_idx;
2043
2044
2045 que = qedf->global_queues[fp->sb_id];
2046
2047
2048 rmb();
2049
2050
2051 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2052
2053 return (que->cq_prod_idx != prod_idx);
2054}
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064static bool qedf_process_completions(struct qedf_fastpath *fp)
2065{
2066 struct qedf_ctx *qedf = fp->qedf;
2067 struct qed_sb_info *sb_info = fp->sb_info;
2068 struct status_block_e4 *sb = sb_info->sb_virt;
2069 struct global_queue *que;
2070 u16 prod_idx;
2071 struct fcoe_cqe *cqe;
2072 struct qedf_io_work *io_work;
2073 int num_handled = 0;
2074 unsigned int cpu;
2075 struct qedf_ioreq *io_req = NULL;
2076 u16 xid;
2077 u16 new_cqes;
2078 u32 comp_type;
2079
2080
2081 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2082
2083
2084 que = qedf->global_queues[fp->sb_id];
2085
2086
2087 new_cqes = (prod_idx >= que->cq_prod_idx) ?
2088 (prod_idx - que->cq_prod_idx) :
2089 0x10000 - que->cq_prod_idx + prod_idx;
2090
2091
2092 que->cq_prod_idx = prod_idx;
2093
2094 while (new_cqes) {
2095 fp->completions++;
2096 num_handled++;
2097 cqe = &que->cq[que->cq_cons_idx];
2098
2099 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2100 FCOE_CQE_CQE_TYPE_MASK;
2101
2102
2103
2104
2105
2106 if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
2107 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
2108 "Unsolicated CQE.\n");
2109 qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
2110
2111
2112
2113
2114 goto inc_idx;
2115 }
2116
2117 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2118 io_req = &qedf->cmd_mgr->cmds[xid];
2119
2120
2121
2122
2123
2124 if (!io_req)
2125
2126
2127
2128 cpu = 0;
2129 else {
2130 cpu = io_req->cpu;
2131 io_req->int_cpu = smp_processor_id();
2132 }
2133
2134 io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
2135 if (!io_work) {
2136 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
2137 "work for I/O completion.\n");
2138 continue;
2139 }
2140 memset(io_work, 0, sizeof(struct qedf_io_work));
2141
2142 INIT_WORK(&io_work->work, qedf_fp_io_handler);
2143
2144
2145 memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
2146
2147 io_work->qedf = fp->qedf;
2148 io_work->fp = NULL;
2149
2150 queue_work_on(cpu, qedf_io_wq, &io_work->work);
2151
2152inc_idx:
2153 que->cq_cons_idx++;
2154 if (que->cq_cons_idx == fp->cq_num_entries)
2155 que->cq_cons_idx = 0;
2156 new_cqes--;
2157 }
2158
2159 return true;
2160}
2161
2162
2163
2164static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
2165{
2166 struct qedf_fastpath *fp = dev_id;
2167
2168 if (!fp) {
2169 QEDF_ERR(NULL, "fp is null.\n");
2170 return IRQ_HANDLED;
2171 }
2172 if (!fp->sb_info) {
2173 QEDF_ERR(NULL, "fp->sb_info in null.");
2174 return IRQ_HANDLED;
2175 }
2176
2177
2178
2179
2180
2181 qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 );
2182
2183 while (1) {
2184 qedf_process_completions(fp);
2185
2186 if (qedf_fp_has_work(fp) == 0) {
2187
2188 qed_sb_update_sb_idx(fp->sb_info);
2189
2190
2191 rmb();
2192
2193 if (qedf_fp_has_work(fp) == 0) {
2194
2195 qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
2196 return IRQ_HANDLED;
2197 }
2198 }
2199 }
2200
2201
2202 return IRQ_HANDLED;
2203}
2204
2205
2206static void qedf_simd_int_handler(void *cookie)
2207{
2208
2209 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2210
2211 QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
2212}
2213
2214#define QEDF_SIMD_HANDLER_NUM 0
2215static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
2216{
2217 int i;
2218 u16 vector_idx = 0;
2219 u32 vector;
2220
2221 if (qedf->int_info.msix_cnt) {
2222 for (i = 0; i < qedf->int_info.used_cnt; i++) {
2223 vector_idx = i * qedf->dev_info.common.num_hwfns +
2224 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2225 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2226 "Freeing IRQ #%d vector_idx=%d.\n",
2227 i, vector_idx);
2228 vector = qedf->int_info.msix[vector_idx].vector;
2229 synchronize_irq(vector);
2230 irq_set_affinity_hint(vector, NULL);
2231 irq_set_affinity_notifier(vector, NULL);
2232 free_irq(vector, &qedf->fp_array[i]);
2233 }
2234 } else
2235 qed_ops->common->simd_handler_clean(qedf->cdev,
2236 QEDF_SIMD_HANDLER_NUM);
2237
2238 qedf->int_info.used_cnt = 0;
2239 qed_ops->common->set_fp_int(qedf->cdev, 0);
2240}
2241
2242static int qedf_request_msix_irq(struct qedf_ctx *qedf)
2243{
2244 int i, rc, cpu;
2245 u16 vector_idx = 0;
2246 u32 vector;
2247
2248 cpu = cpumask_first(cpu_online_mask);
2249 for (i = 0; i < qedf->num_queues; i++) {
2250 vector_idx = i * qedf->dev_info.common.num_hwfns +
2251 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2252 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2253 "Requesting IRQ #%d vector_idx=%d.\n",
2254 i, vector_idx);
2255 vector = qedf->int_info.msix[vector_idx].vector;
2256 rc = request_irq(vector, qedf_msix_handler, 0, "qedf",
2257 &qedf->fp_array[i]);
2258
2259 if (rc) {
2260 QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
2261 qedf_sync_free_irqs(qedf);
2262 return rc;
2263 }
2264
2265 qedf->int_info.used_cnt++;
2266 rc = irq_set_affinity_hint(vector, get_cpu_mask(cpu));
2267 cpu = cpumask_next(cpu, cpu_online_mask);
2268 }
2269
2270 return 0;
2271}
2272
2273static int qedf_setup_int(struct qedf_ctx *qedf)
2274{
2275 int rc = 0;
2276
2277
2278
2279
2280 rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
2281 if (rc <= 0)
2282 return 0;
2283
2284 rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
2285 if (rc)
2286 return 0;
2287
2288 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
2289 "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
2290 num_online_cpus());
2291
2292 if (qedf->int_info.msix_cnt)
2293 return qedf_request_msix_irq(qedf);
2294
2295 qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
2296 QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
2297 qedf->int_info.used_cnt = 1;
2298
2299 QEDF_ERR(&qedf->dbg_ctx,
2300 "Cannot load driver due to a lack of MSI-X vectors.\n");
2301 return -EINVAL;
2302}
2303
2304
2305static void qedf_recv_frame(struct qedf_ctx *qedf,
2306 struct sk_buff *skb)
2307{
2308 u32 fr_len;
2309 struct fc_lport *lport;
2310 struct fc_frame_header *fh;
2311 struct fcoe_crc_eof crc_eof;
2312 struct fc_frame *fp;
2313 u8 *mac = NULL;
2314 u8 *dest_mac = NULL;
2315 struct fcoe_hdr *hp;
2316 struct qedf_rport *fcport;
2317 struct fc_lport *vn_port;
2318 u32 f_ctl;
2319
2320 lport = qedf->lport;
2321 if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
2322 QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
2323 kfree_skb(skb);
2324 return;
2325 }
2326
2327 if (skb_is_nonlinear(skb))
2328 skb_linearize(skb);
2329 mac = eth_hdr(skb)->h_source;
2330 dest_mac = eth_hdr(skb)->h_dest;
2331
2332
2333 hp = (struct fcoe_hdr *)skb->data;
2334 fh = (struct fc_frame_header *) skb_transport_header(skb);
2335 skb_pull(skb, sizeof(struct fcoe_hdr));
2336 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
2337
2338 fp = (struct fc_frame *)skb;
2339 fc_frame_init(fp);
2340 fr_dev(fp) = lport;
2341 fr_sof(fp) = hp->fcoe_sof;
2342 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
2343 kfree_skb(skb);
2344 return;
2345 }
2346 fr_eof(fp) = crc_eof.fcoe_eof;
2347 fr_crc(fp) = crc_eof.fcoe_crc32;
2348 if (pskb_trim(skb, fr_len)) {
2349 kfree_skb(skb);
2350 return;
2351 }
2352
2353 fh = fc_frame_header_get(fp);
2354
2355
2356
2357
2358
2359 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
2360 fh->fh_type == FC_TYPE_FCP) {
2361
2362 kfree_skb(skb);
2363 return;
2364 }
2365 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
2366 fh->fh_type == FC_TYPE_ELS) {
2367 switch (fc_frame_payload_op(fp)) {
2368 case ELS_LOGO:
2369 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
2370
2371 kfree_skb(skb);
2372 return;
2373 }
2374 break;
2375 }
2376 }
2377
2378 if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
2379
2380 kfree_skb(skb);
2381 return;
2382 }
2383
2384 if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
2385 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2386 "FC frame d_id mismatch with MAC %pM.\n", dest_mac);
2387 kfree_skb(skb);
2388 return;
2389 }
2390
2391 if (qedf->ctlr.state) {
2392 if (!ether_addr_equal(mac, qedf->ctlr.dest_addr)) {
2393 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2394 "Wrong source address: mac:%pM dest_addr:%pM.\n",
2395 mac, qedf->ctlr.dest_addr);
2396 kfree_skb(skb);
2397 return;
2398 }
2399 }
2400
2401 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
2402
2403
2404
2405
2406
2407
2408 if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
2409 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2410 "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
2411 lport->port_id, ntoh24(fh->fh_d_id));
2412 kfree_skb(skb);
2413 return;
2414 }
2415
2416 f_ctl = ntoh24(fh->fh_f_ctl);
2417 if ((fh->fh_type == FC_TYPE_BLS) && (f_ctl & FC_FC_SEQ_CTX) &&
2418 (f_ctl & FC_FC_EX_CTX)) {
2419
2420 kfree_skb(skb);
2421 return;
2422 }
2423
2424
2425
2426
2427
2428
2429
2430
2431 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
2432
2433 if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
2434 &fcport->flags)) {
2435 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2436 "Connection uploading, dropping fp=%p.\n", fp);
2437 kfree_skb(skb);
2438 return;
2439 }
2440
2441 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
2442 "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
2443 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
2444 fh->fh_type);
2445 if (qedf_dump_frames)
2446 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
2447 1, skb->data, skb->len, false);
2448 fc_exch_recv(lport, fp);
2449}
2450
2451static void qedf_ll2_process_skb(struct work_struct *work)
2452{
2453 struct qedf_skb_work *skb_work =
2454 container_of(work, struct qedf_skb_work, work);
2455 struct qedf_ctx *qedf = skb_work->qedf;
2456 struct sk_buff *skb = skb_work->skb;
2457 struct ethhdr *eh;
2458
2459 if (!qedf) {
2460 QEDF_ERR(NULL, "qedf is NULL\n");
2461 goto err_out;
2462 }
2463
2464 eh = (struct ethhdr *)skb->data;
2465
2466
2467 if (eh->h_proto == htons(ETH_P_8021Q)) {
2468 memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
2469 eh = skb_pull(skb, VLAN_HLEN);
2470 skb_reset_mac_header(skb);
2471 }
2472
2473
2474
2475
2476
2477
2478 if (eh->h_proto == htons(ETH_P_FIP)) {
2479 qedf_fip_recv(qedf, skb);
2480 goto out;
2481 } else if (eh->h_proto == htons(ETH_P_FCOE)) {
2482 __skb_pull(skb, ETH_HLEN);
2483 qedf_recv_frame(qedf, skb);
2484 goto out;
2485 } else
2486 goto err_out;
2487
2488err_out:
2489 kfree_skb(skb);
2490out:
2491 kfree(skb_work);
2492 return;
2493}
2494
2495static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
2496 u32 arg1, u32 arg2)
2497{
2498 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2499 struct qedf_skb_work *skb_work;
2500
2501 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
2502 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2503 "Dropping frame as link state is down.\n");
2504 kfree_skb(skb);
2505 return 0;
2506 }
2507
2508 skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
2509 if (!skb_work) {
2510 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
2511 "dropping frame.\n");
2512 kfree_skb(skb);
2513 return 0;
2514 }
2515
2516 INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
2517 skb_work->skb = skb;
2518 skb_work->qedf = qedf;
2519 queue_work(qedf->ll2_recv_wq, &skb_work->work);
2520
2521 return 0;
2522}
2523
2524static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
2525 .rx_cb = qedf_ll2_rx,
2526 .tx_cb = NULL,
2527};
2528
2529
2530void qedf_fp_io_handler(struct work_struct *work)
2531{
2532 struct qedf_io_work *io_work =
2533 container_of(work, struct qedf_io_work, work);
2534 u32 comp_type;
2535
2536
2537
2538
2539
2540 comp_type = (io_work->cqe.cqe_data >>
2541 FCOE_CQE_CQE_TYPE_SHIFT) &
2542 FCOE_CQE_CQE_TYPE_MASK;
2543 if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
2544 io_work->fp)
2545 fc_exch_recv(io_work->qedf->lport, io_work->fp);
2546 else
2547 qedf_process_cqe(io_work->qedf, &io_work->cqe);
2548
2549 kfree(io_work);
2550}
2551
2552static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
2553 struct qed_sb_info *sb_info, u16 sb_id)
2554{
2555 struct status_block_e4 *sb_virt;
2556 dma_addr_t sb_phys;
2557 int ret;
2558
2559 sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
2560 sizeof(struct status_block_e4), &sb_phys, GFP_KERNEL);
2561
2562 if (!sb_virt) {
2563 QEDF_ERR(&(qedf->dbg_ctx), "Status block allocation failed "
2564 "for id = %d.\n", sb_id);
2565 return -ENOMEM;
2566 }
2567
2568 ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
2569 sb_id, QED_SB_TYPE_STORAGE);
2570
2571 if (ret) {
2572 QEDF_ERR(&(qedf->dbg_ctx), "Status block initialization "
2573 "failed for id = %d.\n", sb_id);
2574 return ret;
2575 }
2576
2577 return 0;
2578}
2579
2580static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
2581{
2582 if (sb_info->sb_virt)
2583 dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
2584 (void *)sb_info->sb_virt, sb_info->sb_phys);
2585}
2586
2587static void qedf_destroy_sb(struct qedf_ctx *qedf)
2588{
2589 int id;
2590 struct qedf_fastpath *fp = NULL;
2591
2592 for (id = 0; id < qedf->num_queues; id++) {
2593 fp = &(qedf->fp_array[id]);
2594 if (fp->sb_id == QEDF_SB_ID_NULL)
2595 break;
2596 qedf_free_sb(qedf, fp->sb_info);
2597 kfree(fp->sb_info);
2598 }
2599 kfree(qedf->fp_array);
2600}
2601
2602static int qedf_prepare_sb(struct qedf_ctx *qedf)
2603{
2604 int id;
2605 struct qedf_fastpath *fp;
2606 int ret;
2607
2608 qedf->fp_array =
2609 kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
2610 GFP_KERNEL);
2611
2612 if (!qedf->fp_array) {
2613 QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
2614 "failed.\n");
2615 return -ENOMEM;
2616 }
2617
2618 for (id = 0; id < qedf->num_queues; id++) {
2619 fp = &(qedf->fp_array[id]);
2620 fp->sb_id = QEDF_SB_ID_NULL;
2621 fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
2622 if (!fp->sb_info) {
2623 QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
2624 "allocation failed.\n");
2625 goto err;
2626 }
2627 ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
2628 if (ret) {
2629 QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
2630 "initialization failed.\n");
2631 goto err;
2632 }
2633 fp->sb_id = id;
2634 fp->qedf = qedf;
2635 fp->cq_num_entries =
2636 qedf->global_queues[id]->cq_mem_size /
2637 sizeof(struct fcoe_cqe);
2638 }
2639err:
2640 return 0;
2641}
2642
2643void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
2644{
2645 u16 xid;
2646 struct qedf_ioreq *io_req;
2647 struct qedf_rport *fcport;
2648 u32 comp_type;
2649
2650 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2651 FCOE_CQE_CQE_TYPE_MASK;
2652
2653 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2654 io_req = &qedf->cmd_mgr->cmds[xid];
2655
2656
2657 if (!io_req)
2658 return;
2659
2660 fcport = io_req->fcport;
2661
2662 if (fcport == NULL) {
2663 QEDF_ERR(&(qedf->dbg_ctx), "fcport is NULL.\n");
2664 return;
2665 }
2666
2667
2668
2669
2670
2671 if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
2672 QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
2673 return;
2674 }
2675
2676
2677 switch (comp_type) {
2678 case FCOE_GOOD_COMPLETION_CQE_TYPE:
2679 atomic_inc(&fcport->free_sqes);
2680 switch (io_req->cmd_type) {
2681 case QEDF_SCSI_CMD:
2682 qedf_scsi_completion(qedf, cqe, io_req);
2683 break;
2684 case QEDF_ELS:
2685 qedf_process_els_compl(qedf, cqe, io_req);
2686 break;
2687 case QEDF_TASK_MGMT_CMD:
2688 qedf_process_tmf_compl(qedf, cqe, io_req);
2689 break;
2690 case QEDF_SEQ_CLEANUP:
2691 qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
2692 break;
2693 }
2694 break;
2695 case FCOE_ERROR_DETECTION_CQE_TYPE:
2696 atomic_inc(&fcport->free_sqes);
2697 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2698 "Error detect CQE.\n");
2699 qedf_process_error_detect(qedf, cqe, io_req);
2700 break;
2701 case FCOE_EXCH_CLEANUP_CQE_TYPE:
2702 atomic_inc(&fcport->free_sqes);
2703 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2704 "Cleanup CQE.\n");
2705 qedf_process_cleanup_compl(qedf, cqe, io_req);
2706 break;
2707 case FCOE_ABTS_CQE_TYPE:
2708 atomic_inc(&fcport->free_sqes);
2709 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2710 "Abort CQE.\n");
2711 qedf_process_abts_compl(qedf, cqe, io_req);
2712 break;
2713 case FCOE_DUMMY_CQE_TYPE:
2714 atomic_inc(&fcport->free_sqes);
2715 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2716 "Dummy CQE.\n");
2717 break;
2718 case FCOE_LOCAL_COMP_CQE_TYPE:
2719 atomic_inc(&fcport->free_sqes);
2720 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2721 "Local completion CQE.\n");
2722 break;
2723 case FCOE_WARNING_CQE_TYPE:
2724 atomic_inc(&fcport->free_sqes);
2725 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2726 "Warning CQE.\n");
2727 qedf_process_warning_compl(qedf, cqe, io_req);
2728 break;
2729 case MAX_FCOE_CQE_TYPE:
2730 atomic_inc(&fcport->free_sqes);
2731 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2732 "Max FCoE CQE.\n");
2733 break;
2734 default:
2735 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2736 "Default CQE.\n");
2737 break;
2738 }
2739}
2740
2741static void qedf_free_bdq(struct qedf_ctx *qedf)
2742{
2743 int i;
2744
2745 if (qedf->bdq_pbl_list)
2746 dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
2747 qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
2748
2749 if (qedf->bdq_pbl)
2750 dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
2751 qedf->bdq_pbl, qedf->bdq_pbl_dma);
2752
2753 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2754 if (qedf->bdq[i].buf_addr) {
2755 dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
2756 qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
2757 }
2758 }
2759}
2760
2761static void qedf_free_global_queues(struct qedf_ctx *qedf)
2762{
2763 int i;
2764 struct global_queue **gl = qedf->global_queues;
2765
2766 for (i = 0; i < qedf->num_queues; i++) {
2767 if (!gl[i])
2768 continue;
2769
2770 if (gl[i]->cq)
2771 dma_free_coherent(&qedf->pdev->dev,
2772 gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
2773 if (gl[i]->cq_pbl)
2774 dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
2775 gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
2776
2777 kfree(gl[i]);
2778 }
2779
2780 qedf_free_bdq(qedf);
2781}
2782
2783static int qedf_alloc_bdq(struct qedf_ctx *qedf)
2784{
2785 int i;
2786 struct scsi_bd *pbl;
2787 u64 *list;
2788 dma_addr_t page;
2789
2790
2791 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2792 qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
2793 QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
2794 if (!qedf->bdq[i].buf_addr) {
2795 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
2796 "buffer %d.\n", i);
2797 return -ENOMEM;
2798 }
2799 }
2800
2801
2802 qedf->bdq_pbl_mem_size =
2803 QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
2804 qedf->bdq_pbl_mem_size =
2805 ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
2806
2807 qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
2808 qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
2809 if (!qedf->bdq_pbl) {
2810 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
2811 return -ENOMEM;
2812 }
2813
2814 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
2815 "BDQ PBL addr=0x%p dma=%pad\n",
2816 qedf->bdq_pbl, &qedf->bdq_pbl_dma);
2817
2818
2819
2820
2821
2822 pbl = (struct scsi_bd *)qedf->bdq_pbl;
2823 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2824 pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
2825 pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
2826 pbl->opaque.fcoe_opaque.hi = 0;
2827
2828 pbl->opaque.fcoe_opaque.lo = cpu_to_le32(i);
2829 pbl++;
2830 }
2831
2832
2833 qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
2834 QEDF_PAGE_SIZE,
2835 &qedf->bdq_pbl_list_dma,
2836 GFP_KERNEL);
2837 if (!qedf->bdq_pbl_list) {
2838 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL pages.\n");
2839 return -ENOMEM;
2840 }
2841
2842
2843
2844
2845
2846 qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
2847 QEDF_PAGE_SIZE;
2848 list = (u64 *)qedf->bdq_pbl_list;
2849 page = qedf->bdq_pbl_list_dma;
2850 for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
2851 *list = qedf->bdq_pbl_dma;
2852 list++;
2853 page += QEDF_PAGE_SIZE;
2854 }
2855
2856 return 0;
2857}
2858
2859static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
2860{
2861 u32 *list;
2862 int i;
2863 int status = 0, rc;
2864 u32 *pbl;
2865 dma_addr_t page;
2866 int num_pages;
2867
2868
2869
2870
2871
2872
2873 if (!qedf->num_queues) {
2874 QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
2875 return 1;
2876 }
2877
2878
2879
2880
2881
2882 if (!qedf->p_cpuq) {
2883 status = 1;
2884 goto mem_alloc_failure;
2885 }
2886
2887 qedf->global_queues = kzalloc((sizeof(struct global_queue *)
2888 * qedf->num_queues), GFP_KERNEL);
2889 if (!qedf->global_queues) {
2890 QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
2891 "queues array ptr memory\n");
2892 return -ENOMEM;
2893 }
2894 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
2895 "qedf->global_queues=%p.\n", qedf->global_queues);
2896
2897
2898 rc = qedf_alloc_bdq(qedf);
2899 if (rc)
2900 goto mem_alloc_failure;
2901
2902
2903 for (i = 0; i < qedf->num_queues; i++) {
2904 qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
2905 GFP_KERNEL);
2906 if (!qedf->global_queues[i]) {
2907 QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocate "
2908 "global queue %d.\n", i);
2909 status = -ENOMEM;
2910 goto mem_alloc_failure;
2911 }
2912
2913 qedf->global_queues[i]->cq_mem_size =
2914 FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
2915 qedf->global_queues[i]->cq_mem_size =
2916 ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
2917
2918 qedf->global_queues[i]->cq_pbl_size =
2919 (qedf->global_queues[i]->cq_mem_size /
2920 PAGE_SIZE) * sizeof(void *);
2921 qedf->global_queues[i]->cq_pbl_size =
2922 ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
2923
2924 qedf->global_queues[i]->cq =
2925 dma_alloc_coherent(&qedf->pdev->dev,
2926 qedf->global_queues[i]->cq_mem_size,
2927 &qedf->global_queues[i]->cq_dma,
2928 GFP_KERNEL);
2929
2930 if (!qedf->global_queues[i]->cq) {
2931 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq.\n");
2932 status = -ENOMEM;
2933 goto mem_alloc_failure;
2934 }
2935
2936 qedf->global_queues[i]->cq_pbl =
2937 dma_alloc_coherent(&qedf->pdev->dev,
2938 qedf->global_queues[i]->cq_pbl_size,
2939 &qedf->global_queues[i]->cq_pbl_dma,
2940 GFP_KERNEL);
2941
2942 if (!qedf->global_queues[i]->cq_pbl) {
2943 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq PBL.\n");
2944 status = -ENOMEM;
2945 goto mem_alloc_failure;
2946 }
2947
2948
2949 num_pages = qedf->global_queues[i]->cq_mem_size /
2950 QEDF_PAGE_SIZE;
2951 page = qedf->global_queues[i]->cq_dma;
2952 pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
2953
2954 while (num_pages--) {
2955 *pbl = U64_LO(page);
2956 pbl++;
2957 *pbl = U64_HI(page);
2958 pbl++;
2959 page += QEDF_PAGE_SIZE;
2960 }
2961
2962 qedf->global_queues[i]->cq_cons_idx = 0;
2963 }
2964
2965 list = (u32 *)qedf->p_cpuq;
2966
2967
2968
2969
2970
2971
2972
2973 for (i = 0; i < qedf->num_queues; i++) {
2974 *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
2975 list++;
2976 *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
2977 list++;
2978 *list = U64_LO(0);
2979 list++;
2980 *list = U64_HI(0);
2981 list++;
2982 }
2983
2984 return 0;
2985
2986mem_alloc_failure:
2987 qedf_free_global_queues(qedf);
2988 return status;
2989}
2990
2991static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
2992{
2993 u8 sq_num_pbl_pages;
2994 u32 sq_mem_size;
2995 u32 cq_mem_size;
2996 u32 cq_num_entries;
2997 int rval;
2998
2999
3000
3001
3002
3003
3004
3005
3006 qedf->num_queues = MIN_NUM_CPUS_MSIX(qedf);
3007
3008 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
3009 qedf->num_queues);
3010
3011 qedf->p_cpuq = dma_alloc_coherent(&qedf->pdev->dev,
3012 qedf->num_queues * sizeof(struct qedf_glbl_q_params),
3013 &qedf->hw_p_cpuq, GFP_KERNEL);
3014
3015 if (!qedf->p_cpuq) {
3016 QEDF_ERR(&(qedf->dbg_ctx), "dma_alloc_coherent failed.\n");
3017 return 1;
3018 }
3019
3020 rval = qedf_alloc_global_queues(qedf);
3021 if (rval) {
3022 QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
3023 "failed.\n");
3024 return 1;
3025 }
3026
3027
3028 sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
3029 sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
3030 sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
3031
3032
3033 cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3034 cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
3035 cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
3036
3037 memset(&(qedf->pf_params), 0, sizeof(qedf->pf_params));
3038
3039
3040 qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
3041 qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
3042 qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
3043 (u64)qedf->hw_p_cpuq;
3044 qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
3045
3046 qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
3047
3048 qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
3049 qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
3050
3051
3052 qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
3053
3054 qedf->pf_params.fcoe_pf_params.mtu = 9000;
3055 qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
3056 qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
3057
3058
3059 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
3060 qedf->bdq_pbl_list_dma;
3061 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
3062 qedf->bdq_pbl_list_num_entries;
3063 qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
3064
3065 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3066 "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
3067 qedf->bdq_pbl_list,
3068 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
3069 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
3070
3071 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3072 "cq_num_entries=%d.\n",
3073 qedf->pf_params.fcoe_pf_params.cq_num_entries);
3074
3075 return 0;
3076}
3077
3078
3079static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
3080{
3081 size_t size = 0;
3082
3083 if (qedf->p_cpuq) {
3084 size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
3085 dma_free_coherent(&qedf->pdev->dev, size, qedf->p_cpuq,
3086 qedf->hw_p_cpuq);
3087 }
3088
3089 qedf_free_global_queues(qedf);
3090
3091 kfree(qedf->global_queues);
3092}
3093
3094
3095
3096
3097
3098static const struct pci_device_id qedf_pci_tbl[] = {
3099 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
3100 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
3101 {0}
3102};
3103MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
3104
3105static struct pci_driver qedf_pci_driver = {
3106 .name = QEDF_MODULE_NAME,
3107 .id_table = qedf_pci_tbl,
3108 .probe = qedf_probe,
3109 .remove = qedf_remove,
3110};
3111
3112static int __qedf_probe(struct pci_dev *pdev, int mode)
3113{
3114 int rc = -EINVAL;
3115 struct fc_lport *lport;
3116 struct qedf_ctx *qedf;
3117 struct Scsi_Host *host;
3118 bool is_vf = false;
3119 struct qed_ll2_params params;
3120 char host_buf[20];
3121 struct qed_link_params link_params;
3122 int status;
3123 void *task_start, *task_end;
3124 struct qed_slowpath_params slowpath_params;
3125 struct qed_probe_params qed_params;
3126 u16 tmp;
3127
3128
3129
3130
3131
3132 if (mode != QEDF_MODE_RECOVERY) {
3133 lport = libfc_host_alloc(&qedf_host_template,
3134 sizeof(struct qedf_ctx));
3135
3136 if (!lport) {
3137 QEDF_ERR(NULL, "Could not allocate lport.\n");
3138 rc = -ENOMEM;
3139 goto err0;
3140 }
3141
3142 fc_disc_init(lport);
3143
3144
3145 qedf = lport_priv(lport);
3146 qedf->lport = lport;
3147 qedf->ctlr.lp = lport;
3148 qedf->pdev = pdev;
3149 qedf->dbg_ctx.pdev = pdev;
3150 qedf->dbg_ctx.host_no = lport->host->host_no;
3151 spin_lock_init(&qedf->hba_lock);
3152 INIT_LIST_HEAD(&qedf->fcports);
3153 qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
3154 atomic_set(&qedf->num_offloads, 0);
3155 qedf->stop_io_on_error = false;
3156 pci_set_drvdata(pdev, qedf);
3157 init_completion(&qedf->fipvlan_compl);
3158 mutex_init(&qedf->stats_mutex);
3159 mutex_init(&qedf->flush_mutex);
3160
3161 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
3162 "QLogic FastLinQ FCoE Module qedf %s, "
3163 "FW %d.%d.%d.%d\n", QEDF_VERSION,
3164 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
3165 FW_ENGINEERING_VERSION);
3166 } else {
3167
3168 qedf = pci_get_drvdata(pdev);
3169 lport = qedf->lport;
3170 }
3171
3172 host = lport->host;
3173
3174
3175 qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
3176 qedf_io_work_cache);
3177 if (qedf->io_mempool == NULL) {
3178 QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
3179 goto err1;
3180 }
3181 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
3182 qedf->io_mempool);
3183
3184 sprintf(host_buf, "qedf_%u_link",
3185 qedf->lport->host->host_no);
3186 qedf->link_update_wq = create_workqueue(host_buf);
3187 INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
3188 INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
3189 INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump);
3190 qedf->fipvlan_retries = qedf_fipvlan_retries;
3191
3192 if (qedf_default_prio > -1) {
3193
3194
3195
3196
3197 qedf->prio = qedf_default_prio;
3198 } else
3199 qedf->prio = QEDF_DEFAULT_PRIO;
3200
3201
3202
3203
3204
3205 memset(&qed_params, 0, sizeof(qed_params));
3206 qed_params.protocol = QED_PROTOCOL_FCOE;
3207 qed_params.dp_module = qedf_dp_module;
3208 qed_params.dp_level = qedf_dp_level;
3209 qed_params.is_vf = is_vf;
3210 qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
3211 if (!qedf->cdev) {
3212 rc = -ENODEV;
3213 goto err1;
3214 }
3215
3216
3217 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3218 if (rc) {
3219 QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
3220 goto err1;
3221 }
3222
3223 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
3224 "dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
3225 qedf->dev_info.common.num_hwfns,
3226 qed_ops->common->get_affin_hwfn_idx(qedf->cdev));
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236 rc = qedf_set_fcoe_pf_param(qedf);
3237 if (rc) {
3238 QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
3239 goto err2;
3240 }
3241 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3242
3243
3244 qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
3245 qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
3246 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3247 "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
3248 qedf->bdq_secondary_prod);
3249
3250 qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
3251
3252 rc = qedf_prepare_sb(qedf);
3253 if (rc) {
3254
3255 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3256 goto err2;
3257 }
3258
3259
3260 slowpath_params.int_mode = QED_INT_MODE_MSIX;
3261 slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
3262 slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
3263 slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
3264 slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
3265 strncpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
3266 rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
3267 if (rc) {
3268 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3269 goto err2;
3270 }
3271
3272
3273
3274
3275
3276 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3277
3278
3279 rc = qedf_setup_int(qedf);
3280 if (rc)
3281 goto err3;
3282
3283 rc = qed_ops->start(qedf->cdev, &qedf->tasks);
3284 if (rc) {
3285 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
3286 goto err4;
3287 }
3288 task_start = qedf_get_task_mem(&qedf->tasks, 0);
3289 task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
3290 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
3291 "end=%p block_size=%u.\n", task_start, task_end,
3292 qedf->tasks.size);
3293
3294
3295
3296
3297
3298
3299 qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
3300 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3301 "Writing %d to primary and secondary BDQ doorbell registers.\n",
3302 qedf->bdq_prod_idx);
3303 writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
3304 tmp = readw(qedf->bdq_primary_prod);
3305 writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
3306 tmp = readw(qedf->bdq_secondary_prod);
3307
3308 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3309
3310
3311
3312
3313 ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
3314 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
3315 qedf->mac);
3316
3317
3318
3319
3320
3321
3322
3323
3324 if (qedf->dev_info.wwnn != 0 && qedf->dev_info.wwpn != 0) {
3325 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3326 "Setting WWPN and WWNN from qed dev_info.\n");
3327 qedf->wwnn = qedf->dev_info.wwnn;
3328 qedf->wwpn = qedf->dev_info.wwpn;
3329 } else {
3330 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3331 "Setting WWPN and WWNN using fcoe_wwn_from_mac().\n");
3332 qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
3333 qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
3334 }
3335 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
3336 "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
3337
3338 sprintf(host_buf, "host_%d", host->host_no);
3339 qed_ops->common->set_name(qedf->cdev, host_buf);
3340
3341
3342 qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
3343 if (!qedf->cmd_mgr) {
3344 QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
3345 rc = -ENOMEM;
3346 goto err5;
3347 }
3348
3349 if (mode != QEDF_MODE_RECOVERY) {
3350 host->transportt = qedf_fc_transport_template;
3351 host->max_lun = qedf_max_lun;
3352 host->max_cmd_len = QEDF_MAX_CDB_LEN;
3353 host->can_queue = FCOE_PARAMS_NUM_TASKS;
3354 rc = scsi_add_host(host, &pdev->dev);
3355 if (rc) {
3356 QEDF_WARN(&qedf->dbg_ctx,
3357 "Error adding Scsi_Host rc=0x%x.\n", rc);
3358 goto err6;
3359 }
3360 }
3361
3362 memset(¶ms, 0, sizeof(params));
3363 params.mtu = 9000;
3364 ether_addr_copy(params.ll2_mac_address, qedf->mac);
3365
3366
3367 snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
3368 qedf->ll2_recv_wq =
3369 create_workqueue(host_buf);
3370 if (!qedf->ll2_recv_wq) {
3371 QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
3372 rc = -ENOMEM;
3373 goto err7;
3374 }
3375
3376#ifdef CONFIG_DEBUG_FS
3377 qedf_dbg_host_init(&(qedf->dbg_ctx), qedf_debugfs_ops,
3378 qedf_dbg_fops);
3379#endif
3380
3381
3382 qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
3383 rc = qed_ops->ll2->start(qedf->cdev, ¶ms);
3384 if (rc) {
3385 QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
3386 goto err7;
3387 }
3388 set_bit(QEDF_LL2_STARTED, &qedf->flags);
3389
3390
3391 qedf->vlan_id = 0;
3392
3393
3394
3395
3396
3397 if (mode != QEDF_MODE_RECOVERY) {
3398
3399 qedf_fcoe_ctlr_setup(qedf);
3400
3401
3402 rc = qedf_lport_setup(qedf);
3403 if (rc) {
3404 QEDF_ERR(&(qedf->dbg_ctx),
3405 "qedf_lport_setup failed.\n");
3406 goto err7;
3407 }
3408 }
3409
3410 sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
3411 qedf->timer_work_queue =
3412 create_workqueue(host_buf);
3413 if (!qedf->timer_work_queue) {
3414 QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
3415 "workqueue.\n");
3416 rc = -ENOMEM;
3417 goto err7;
3418 }
3419
3420
3421 if (mode != QEDF_MODE_RECOVERY) {
3422 sprintf(host_buf, "qedf_%u_dpc",
3423 qedf->lport->host->host_no);
3424 qedf->dpc_wq = create_workqueue(host_buf);
3425 }
3426
3427
3428
3429
3430
3431 if (mode != QEDF_MODE_RECOVERY) {
3432 qedf->grcdump_size =
3433 qed_ops->common->dbg_all_data_size(qedf->cdev);
3434 if (qedf->grcdump_size) {
3435 rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
3436 qedf->grcdump_size);
3437 if (rc) {
3438 QEDF_ERR(&(qedf->dbg_ctx),
3439 "GRC Dump buffer alloc failed.\n");
3440 qedf->grcdump = NULL;
3441 }
3442
3443 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3444 "grcdump: addr=%p, size=%u.\n",
3445 qedf->grcdump, qedf->grcdump_size);
3446 }
3447 qedf_create_sysfs_ctx_attr(qedf);
3448
3449
3450 spin_lock_init(&qedf->io_trace_lock);
3451 qedf->io_trace_idx = 0;
3452 }
3453
3454 init_completion(&qedf->flogi_compl);
3455
3456 status = qed_ops->common->update_drv_state(qedf->cdev, true);
3457 if (status)
3458 QEDF_ERR(&(qedf->dbg_ctx),
3459 "Failed to send drv state to MFW.\n");
3460
3461 memset(&link_params, 0, sizeof(struct qed_link_params));
3462 link_params.link_up = true;
3463 status = qed_ops->common->set_link(qedf->cdev, &link_params);
3464 if (status)
3465 QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
3466
3467
3468 if (mode == QEDF_MODE_RECOVERY)
3469 fcoe_ctlr_link_up(&qedf->ctlr);
3470 else
3471 fc_fabric_login(lport);
3472
3473
3474 return 0;
3475
3476err7:
3477 if (qedf->ll2_recv_wq)
3478 destroy_workqueue(qedf->ll2_recv_wq);
3479 fc_remove_host(qedf->lport->host);
3480 scsi_remove_host(qedf->lport->host);
3481#ifdef CONFIG_DEBUG_FS
3482 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3483#endif
3484err6:
3485 qedf_cmd_mgr_free(qedf->cmd_mgr);
3486err5:
3487 qed_ops->stop(qedf->cdev);
3488err4:
3489 qedf_free_fcoe_pf_param(qedf);
3490 qedf_sync_free_irqs(qedf);
3491err3:
3492 qed_ops->common->slowpath_stop(qedf->cdev);
3493err2:
3494 qed_ops->common->remove(qedf->cdev);
3495err1:
3496 scsi_host_put(lport->host);
3497err0:
3498 return rc;
3499}
3500
3501static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
3502{
3503 return __qedf_probe(pdev, QEDF_MODE_NORMAL);
3504}
3505
3506static void __qedf_remove(struct pci_dev *pdev, int mode)
3507{
3508 struct qedf_ctx *qedf;
3509 int rc;
3510
3511 if (!pdev) {
3512 QEDF_ERR(NULL, "pdev is NULL.\n");
3513 return;
3514 }
3515
3516 qedf = pci_get_drvdata(pdev);
3517
3518
3519
3520
3521
3522 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
3523 QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
3524 return;
3525 }
3526
3527 if (mode != QEDF_MODE_RECOVERY)
3528 set_bit(QEDF_UNLOADING, &qedf->flags);
3529
3530
3531 if (mode == QEDF_MODE_RECOVERY)
3532 fcoe_ctlr_link_down(&qedf->ctlr);
3533 else
3534 fc_fabric_logoff(qedf->lport);
3535
3536 if (qedf_wait_for_upload(qedf) == false)
3537 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
3538
3539#ifdef CONFIG_DEBUG_FS
3540 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3541#endif
3542
3543
3544 cancel_delayed_work_sync(&qedf->link_update);
3545 destroy_workqueue(qedf->link_update_wq);
3546 qedf->link_update_wq = NULL;
3547
3548 if (qedf->timer_work_queue)
3549 destroy_workqueue(qedf->timer_work_queue);
3550
3551
3552 clear_bit(QEDF_LL2_STARTED, &qedf->flags);
3553 qed_ops->ll2->stop(qedf->cdev);
3554 if (qedf->ll2_recv_wq)
3555 destroy_workqueue(qedf->ll2_recv_wq);
3556
3557
3558 qedf_sync_free_irqs(qedf);
3559 qedf_destroy_sb(qedf);
3560
3561
3562
3563
3564
3565 if (mode != QEDF_MODE_RECOVERY) {
3566 qedf_free_grc_dump_buf(&qedf->grcdump);
3567 qedf_remove_sysfs_ctx_attr(qedf);
3568
3569
3570 fcoe_ctlr_destroy(&qedf->ctlr);
3571 fc_lport_destroy(qedf->lport);
3572 fc_remove_host(qedf->lport->host);
3573 scsi_remove_host(qedf->lport->host);
3574 }
3575
3576 qedf_cmd_mgr_free(qedf->cmd_mgr);
3577
3578 if (mode != QEDF_MODE_RECOVERY) {
3579 fc_exch_mgr_free(qedf->lport);
3580 fc_lport_free_stats(qedf->lport);
3581
3582
3583 qedf_wait_for_vport_destroy(qedf);
3584 }
3585
3586
3587
3588
3589
3590 qed_ops->stop(qedf->cdev);
3591
3592 if (mode != QEDF_MODE_RECOVERY) {
3593 if (qedf->dpc_wq) {
3594
3595 destroy_workqueue(qedf->dpc_wq);
3596 qedf->dpc_wq = NULL;
3597 }
3598 }
3599
3600
3601 qedf_free_fcoe_pf_param(qedf);
3602 if (mode != QEDF_MODE_RECOVERY) {
3603 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3604 pci_set_drvdata(pdev, NULL);
3605 }
3606
3607 rc = qed_ops->common->update_drv_state(qedf->cdev, false);
3608 if (rc)
3609 QEDF_ERR(&(qedf->dbg_ctx),
3610 "Failed to send drv state to MFW.\n");
3611
3612 qed_ops->common->slowpath_stop(qedf->cdev);
3613 qed_ops->common->remove(qedf->cdev);
3614
3615 mempool_destroy(qedf->io_mempool);
3616
3617
3618 if (mode != QEDF_MODE_RECOVERY)
3619 scsi_host_put(qedf->lport->host);
3620}
3621
3622static void qedf_remove(struct pci_dev *pdev)
3623{
3624
3625 if (!atomic_read(&pdev->enable_cnt))
3626 return;
3627
3628 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3629}
3630
3631void qedf_wq_grcdump(struct work_struct *work)
3632{
3633 struct qedf_ctx *qedf =
3634 container_of(work, struct qedf_ctx, grcdump_work.work);
3635
3636 QEDF_ERR(&(qedf->dbg_ctx), "Collecting GRC dump.\n");
3637 qedf_capture_grc_dump(qedf);
3638}
3639
3640
3641
3642
3643void qedf_get_protocol_tlv_data(void *dev, void *data)
3644{
3645 struct qedf_ctx *qedf = dev;
3646 struct qed_mfw_tlv_fcoe *fcoe = data;
3647 struct fc_lport *lport = qedf->lport;
3648 struct Scsi_Host *host = lport->host;
3649 struct fc_host_attrs *fc_host = shost_to_fc_host(host);
3650 struct fc_host_statistics *hst;
3651
3652
3653 hst = qedf_fc_get_host_stats(host);
3654
3655 fcoe->qos_pri_set = true;
3656 fcoe->qos_pri = 3;
3657
3658 fcoe->ra_tov_set = true;
3659 fcoe->ra_tov = lport->r_a_tov;
3660
3661 fcoe->ed_tov_set = true;
3662 fcoe->ed_tov = lport->e_d_tov;
3663
3664 fcoe->npiv_state_set = true;
3665 fcoe->npiv_state = 1;
3666
3667 fcoe->num_npiv_ids_set = true;
3668 fcoe->num_npiv_ids = fc_host->npiv_vports_inuse;
3669
3670
3671 if (qedf->ctlr.sel_fcf) {
3672 fcoe->switch_name_set = true;
3673 u64_to_wwn(qedf->ctlr.sel_fcf->switch_name, fcoe->switch_name);
3674 }
3675
3676 fcoe->port_state_set = true;
3677
3678 if (lport->link_up)
3679 fcoe->port_state = QED_MFW_TLV_PORT_STATE_FABRIC;
3680 else
3681 fcoe->port_state = QED_MFW_TLV_PORT_STATE_OFFLINE;
3682
3683 fcoe->link_failures_set = true;
3684 fcoe->link_failures = (u16)hst->link_failure_count;
3685
3686 fcoe->fcoe_txq_depth_set = true;
3687 fcoe->fcoe_rxq_depth_set = true;
3688 fcoe->fcoe_rxq_depth = FCOE_PARAMS_NUM_TASKS;
3689 fcoe->fcoe_txq_depth = FCOE_PARAMS_NUM_TASKS;
3690
3691 fcoe->fcoe_rx_frames_set = true;
3692 fcoe->fcoe_rx_frames = hst->rx_frames;
3693
3694 fcoe->fcoe_tx_frames_set = true;
3695 fcoe->fcoe_tx_frames = hst->tx_frames;
3696
3697 fcoe->fcoe_rx_bytes_set = true;
3698 fcoe->fcoe_rx_bytes = hst->fcp_input_megabytes * 1000000;
3699
3700 fcoe->fcoe_tx_bytes_set = true;
3701 fcoe->fcoe_tx_bytes = hst->fcp_output_megabytes * 1000000;
3702
3703 fcoe->crc_count_set = true;
3704 fcoe->crc_count = hst->invalid_crc_count;
3705
3706 fcoe->tx_abts_set = true;
3707 fcoe->tx_abts = hst->fcp_packet_aborts;
3708
3709 fcoe->tx_lun_rst_set = true;
3710 fcoe->tx_lun_rst = qedf->lun_resets;
3711
3712 fcoe->abort_task_sets_set = true;
3713 fcoe->abort_task_sets = qedf->packet_aborts;
3714
3715 fcoe->scsi_busy_set = true;
3716 fcoe->scsi_busy = qedf->busy;
3717
3718 fcoe->scsi_tsk_full_set = true;
3719 fcoe->scsi_tsk_full = qedf->task_set_fulls;
3720}
3721
3722
3723void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
3724{
3725 struct qedf_ctx *qedf;
3726
3727 if (!dev) {
3728 QEDF_INFO(NULL, QEDF_LOG_EVT,
3729 "dev is NULL so ignoring get_generic_tlv_data request.\n");
3730 return;
3731 }
3732 qedf = (struct qedf_ctx *)dev;
3733
3734 memset(data, 0, sizeof(struct qed_generic_tlvs));
3735 ether_addr_copy(data->mac[0], qedf->mac);
3736}
3737
3738
3739
3740
3741
3742static int __init qedf_init(void)
3743{
3744 int ret;
3745
3746
3747 if (qedf_debug == QEDF_LOG_DEFAULT)
3748 qedf_debug = QEDF_DEFAULT_LOG_MASK;
3749
3750
3751
3752
3753
3754 if (qedf_default_prio > -1)
3755 if (qedf_default_prio > 7) {
3756 qedf_default_prio = QEDF_DEFAULT_PRIO;
3757 QEDF_ERR(NULL, "FCoE/FIP priority out of range, resetting to %d.\n",
3758 QEDF_DEFAULT_PRIO);
3759 }
3760
3761
3762 QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
3763 QEDF_VERSION);
3764
3765
3766 qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
3767 sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
3768 if (qedf_io_work_cache == NULL) {
3769 QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
3770 goto err1;
3771 }
3772 QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
3773 qedf_io_work_cache);
3774
3775 qed_ops = qed_get_fcoe_ops();
3776 if (!qed_ops) {
3777 QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
3778 goto err1;
3779 }
3780
3781#ifdef CONFIG_DEBUG_FS
3782 qedf_dbg_init("qedf");
3783#endif
3784
3785 qedf_fc_transport_template =
3786 fc_attach_transport(&qedf_fc_transport_fn);
3787 if (!qedf_fc_transport_template) {
3788 QEDF_ERR(NULL, "Could not register with FC transport\n");
3789 goto err2;
3790 }
3791
3792 qedf_fc_vport_transport_template =
3793 fc_attach_transport(&qedf_fc_vport_transport_fn);
3794 if (!qedf_fc_vport_transport_template) {
3795 QEDF_ERR(NULL, "Could not register vport template with FC "
3796 "transport\n");
3797 goto err3;
3798 }
3799
3800 qedf_io_wq = create_workqueue("qedf_io_wq");
3801 if (!qedf_io_wq) {
3802 QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
3803 goto err4;
3804 }
3805
3806 qedf_cb_ops.get_login_failures = qedf_get_login_failures;
3807
3808 ret = pci_register_driver(&qedf_pci_driver);
3809 if (ret) {
3810 QEDF_ERR(NULL, "Failed to register driver\n");
3811 goto err5;
3812 }
3813
3814 return 0;
3815
3816err5:
3817 destroy_workqueue(qedf_io_wq);
3818err4:
3819 fc_release_transport(qedf_fc_vport_transport_template);
3820err3:
3821 fc_release_transport(qedf_fc_transport_template);
3822err2:
3823#ifdef CONFIG_DEBUG_FS
3824 qedf_dbg_exit();
3825#endif
3826 qed_put_fcoe_ops();
3827err1:
3828 return -EINVAL;
3829}
3830
3831static void __exit qedf_cleanup(void)
3832{
3833 pci_unregister_driver(&qedf_pci_driver);
3834
3835 destroy_workqueue(qedf_io_wq);
3836
3837 fc_release_transport(qedf_fc_vport_transport_template);
3838 fc_release_transport(qedf_fc_transport_template);
3839#ifdef CONFIG_DEBUG_FS
3840 qedf_dbg_exit();
3841#endif
3842 qed_put_fcoe_ops();
3843
3844 kmem_cache_destroy(qedf_io_work_cache);
3845}
3846
3847MODULE_LICENSE("GPL");
3848MODULE_DESCRIPTION("QLogic QEDF 25/40/50/100Gb FCoE Driver");
3849MODULE_AUTHOR("QLogic Corporation");
3850MODULE_VERSION(QEDF_VERSION);
3851module_init(qedf_init);
3852module_exit(qedf_cleanup);
3853