1 // SPDX-License-Identifier: GPL-2.0-only
3 * QLogic FCoE Offload Driver
4 * Copyright (c) 2016-2018 Cavium Inc.
6 #include <linux/init.h>
7 #include <linux/kernel.h>
8 #include <linux/module.h>
10 #include <linux/device.h>
11 #include <linux/highmem.h>
12 #include <linux/crc32.h>
13 #include <linux/interrupt.h>
14 #include <linux/list.h>
15 #include <linux/kthread.h>
16 #include <linux/phylink.h>
17 #include <scsi/libfc.h>
18 #include <scsi/scsi_host.h>
19 #include <scsi/fc_frame.h>
20 #include <linux/if_ether.h>
21 #include <linux/if_vlan.h>
22 #include <linux/cpu.h>
25 #include <uapi/linux/pci_regs.h>
27 const struct qed_fcoe_ops *qed_ops;
29 static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id);
30 static void qedf_remove(struct pci_dev *pdev);
31 static void qedf_shutdown(struct pci_dev *pdev);
32 static void qedf_schedule_recovery_handler(void *dev);
33 static void qedf_recovery_handler(struct work_struct *work);
34 static int qedf_suspend(struct pci_dev *pdev, pm_message_t state);
37 * Driver module parameters.
39 static unsigned int qedf_dev_loss_tmo = 60;
40 module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
41 MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
42 "remote ports (default 60)");
44 uint qedf_debug = QEDF_LOG_INFO;
45 module_param_named(debug, qedf_debug, uint, S_IRUGO|S_IWUSR);
46 MODULE_PARM_DESC(debug, " Debug mask. Pass '1' to enable default debugging"
49 static uint qedf_fipvlan_retries = 60;
50 module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
51 MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
52 "before giving up (default 60)");
54 static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
55 module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
56 MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
59 static int qedf_default_prio = -1;
60 module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
61 MODULE_PARM_DESC(default_prio, " Override 802.1q priority for FIP and FCoE"
62 " traffic (value between 0 and 7, default 3).");
64 uint qedf_dump_frames;
65 module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
66 MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
69 static uint qedf_queue_depth;
70 module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
71 MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
72 "by the qedf driver. Default is 0 (use OS default).");
75 module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
76 MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
77 "into trace buffer. (default off).");
79 static uint qedf_max_lun = MAX_FIBRE_LUNS;
80 module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
81 MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
82 "supports. (default 0xffffffff)");
84 uint qedf_link_down_tmo;
85 module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
86 MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
87 "link is down by N seconds.");
89 bool qedf_retry_delay;
90 module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
91 MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
92 "delay handling (default off).");
94 static bool qedf_dcbx_no_wait;
95 module_param_named(dcbx_no_wait, qedf_dcbx_no_wait, bool, S_IRUGO | S_IWUSR);
96 MODULE_PARM_DESC(dcbx_no_wait, " Do not wait for DCBX convergence to start "
97 "sending FIP VLAN requests on link up (Default: off).");
99 static uint qedf_dp_module;
100 module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
101 MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
102 "qed module during probe.");
104 static uint qedf_dp_level = QED_LEVEL_NOTICE;
105 module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
106 MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
107 "during probe (0-3: 0 more verbose).");
109 static bool qedf_enable_recovery = true;
110 module_param_named(enable_recovery, qedf_enable_recovery,
111 bool, S_IRUGO | S_IWUSR);
112 MODULE_PARM_DESC(enable_recovery, "Enable/disable recovery on driver/firmware "
113 "interface level errors 0 = Disabled, 1 = Enabled (Default: 1).");
115 struct workqueue_struct *qedf_io_wq;
117 static struct fcoe_percpu_s qedf_global;
118 static DEFINE_SPINLOCK(qedf_global_lock);
120 static struct kmem_cache *qedf_io_work_cache;
122 void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
126 vlan_id_tmp = vlan_id | (qedf->prio << VLAN_PRIO_SHIFT);
127 qedf->vlan_id = vlan_id_tmp;
128 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
129 "Setting vlan_id=0x%04x prio=%d.\n",
130 vlan_id_tmp, qedf->prio);
133 /* Returns true if we have a valid vlan, false otherwise */
134 static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
137 while (qedf->fipvlan_retries--) {
138 /* This is to catch if link goes down during fipvlan retries */
139 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
140 QEDF_ERR(&qedf->dbg_ctx, "Link not up.\n");
144 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
145 QEDF_ERR(&qedf->dbg_ctx, "Driver unloading.\n");
149 if (qedf->vlan_id > 0) {
150 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
151 "vlan = 0x%x already set, calling ctlr_link_up.\n",
153 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
154 fcoe_ctlr_link_up(&qedf->ctlr);
158 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
159 "Retry %d.\n", qedf->fipvlan_retries);
160 init_completion(&qedf->fipvlan_compl);
161 qedf_fcoe_send_vlan_req(qedf);
162 wait_for_completion_timeout(&qedf->fipvlan_compl, 1 * HZ);
168 static void qedf_handle_link_update(struct work_struct *work)
170 struct qedf_ctx *qedf =
171 container_of(work, struct qedf_ctx, link_update.work);
174 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Entered. link_state=%d.\n",
175 atomic_read(&qedf->link_state));
177 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
178 rc = qedf_initiate_fipvlan_req(qedf);
182 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
183 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
184 "Link is down, resetting vlan_id.\n");
190 * If we get here then we never received a repsonse to our
191 * fip vlan request so set the vlan_id to the default and
192 * tell FCoE that the link is up
194 QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
195 "response, falling back to default VLAN %d.\n",
197 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
200 * Zero out data_src_addr so we'll update it with the new
203 eth_zero_addr(qedf->data_src_addr);
204 fcoe_ctlr_link_up(&qedf->ctlr);
205 } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
207 * If we hit here and link_down_tmo_valid is still 1 it means
208 * that link_down_tmo timed out so set it to 0 to make sure any
209 * other readers have accurate state.
211 atomic_set(&qedf->link_down_tmo_valid, 0);
212 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
213 "Calling fcoe_ctlr_link_down().\n");
214 fcoe_ctlr_link_down(&qedf->ctlr);
215 if (qedf_wait_for_upload(qedf) == false)
216 QEDF_ERR(&qedf->dbg_ctx,
217 "Could not upload all sessions.\n");
218 /* Reset the number of FIP VLAN retries */
219 qedf->fipvlan_retries = qedf_fipvlan_retries;
223 #define QEDF_FCOE_MAC_METHOD_GRANGED_MAC 1
224 #define QEDF_FCOE_MAC_METHOD_FCF_MAP 2
225 #define QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC 3
226 static void qedf_set_data_src_addr(struct qedf_ctx *qedf, struct fc_frame *fp)
229 struct fc_frame_header *fh = fc_frame_header_get(fp);
233 /* Get granted MAC address from FIP FLOGI payload */
234 granted_mac = fr_cb(fp)->granted_mac;
237 * We set the source MAC for FCoE traffic based on the Granted MAC
238 * address from the switch.
240 * If granted_mac is non-zero, we used that.
241 * If the granted_mac is zeroed out, created the FCoE MAC based on
242 * the sel_fcf->fc_map and the d_id fo the FLOGI frame.
243 * If sel_fcf->fc_map is 0 then we use the default FCF-MAC plus the
244 * d_id of the FLOGI frame.
246 if (!is_zero_ether_addr(granted_mac)) {
247 ether_addr_copy(qedf->data_src_addr, granted_mac);
248 method = QEDF_FCOE_MAC_METHOD_GRANGED_MAC;
249 } else if (qedf->ctlr.sel_fcf->fc_map != 0) {
250 hton24(fc_map, qedf->ctlr.sel_fcf->fc_map);
251 qedf->data_src_addr[0] = fc_map[0];
252 qedf->data_src_addr[1] = fc_map[1];
253 qedf->data_src_addr[2] = fc_map[2];
254 qedf->data_src_addr[3] = fh->fh_d_id[0];
255 qedf->data_src_addr[4] = fh->fh_d_id[1];
256 qedf->data_src_addr[5] = fh->fh_d_id[2];
257 method = QEDF_FCOE_MAC_METHOD_FCF_MAP;
259 fc_fcoe_set_mac(qedf->data_src_addr, fh->fh_d_id);
260 method = QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC;
263 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
264 "QEDF data_src_mac=%pM method=%d.\n", qedf->data_src_addr, method);
267 static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
270 struct fc_exch *exch = fc_seq_exch(seq);
271 struct fc_lport *lport = exch->lp;
272 struct qedf_ctx *qedf = lport_priv(lport);
275 QEDF_ERR(NULL, "qedf is NULL.\n");
280 * If ERR_PTR is set then don't try to stat anything as it will cause
281 * a crash when we access fp.
284 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
285 "fp has IS_ERR() set.\n");
289 /* Log stats for FLOGI reject */
290 if (fc_frame_payload_op(fp) == ELS_LS_RJT)
291 qedf->flogi_failed++;
292 else if (fc_frame_payload_op(fp) == ELS_LS_ACC) {
293 /* Set the source MAC we will use for FCoE traffic */
294 qedf_set_data_src_addr(qedf, fp);
295 qedf->flogi_pending = 0;
298 /* Complete flogi_compl so we can proceed to sending ADISCs */
299 complete(&qedf->flogi_compl);
302 /* Report response to libfc */
303 fc_lport_flogi_resp(seq, fp, lport);
306 static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
307 struct fc_frame *fp, unsigned int op,
308 void (*resp)(struct fc_seq *,
311 void *arg, u32 timeout)
313 struct qedf_ctx *qedf = lport_priv(lport);
316 * Intercept FLOGI for statistic purposes. Note we use the resp
317 * callback to tell if this is really a flogi.
319 if (resp == fc_lport_flogi_resp) {
321 if (qedf->flogi_pending >= QEDF_FLOGI_RETRY_CNT) {
322 schedule_delayed_work(&qedf->stag_work, 2);
325 qedf->flogi_pending++;
326 return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
330 return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
333 int qedf_send_flogi(struct qedf_ctx *qedf)
335 struct fc_lport *lport;
340 if (!lport->tt.elsct_send) {
341 QEDF_ERR(&qedf->dbg_ctx, "tt.elsct_send not set.\n");
345 fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
347 QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
351 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
352 "Sending FLOGI to reestablish session with switch.\n");
353 lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
354 ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
356 init_completion(&qedf->flogi_compl);
362 * This function is called if link_down_tmo is in use. If we get a link up and
363 * link_down_tmo has not expired then use just FLOGI/ADISC to recover our
364 * sessions with targets. Otherwise, just call fcoe_ctlr_link_up().
366 static void qedf_link_recovery(struct work_struct *work)
368 struct qedf_ctx *qedf =
369 container_of(work, struct qedf_ctx, link_recovery.work);
370 struct fc_lport *lport = qedf->lport;
371 struct fc_rport_priv *rdata;
375 struct list_head rdata_login_list;
377 INIT_LIST_HEAD(&rdata_login_list);
379 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
380 "Link down tmo did not expire.\n");
383 * Essentially reset the fcoe_ctlr here without affecting the state
384 * of the libfc structs.
386 qedf->ctlr.state = FIP_ST_LINK_WAIT;
387 fcoe_ctlr_link_down(&qedf->ctlr);
390 * Bring the link up before we send the fipvlan request so libfcoe
391 * can select a new fcf in parallel
393 fcoe_ctlr_link_up(&qedf->ctlr);
395 /* Since the link when down and up to verify which vlan we're on */
396 qedf->fipvlan_retries = qedf_fipvlan_retries;
397 rc = qedf_initiate_fipvlan_req(qedf);
398 /* If getting the VLAN fails, set the VLAN to the fallback one */
400 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
403 * We need to wait for an FCF to be selected due to the
404 * fcoe_ctlr_link_up other the FLOGI will be rejected.
406 while (retries > 0) {
407 if (qedf->ctlr.sel_fcf) {
408 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
409 "FCF reselected, proceeding with FLOGI.\n");
417 QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
422 rval = qedf_send_flogi(qedf);
426 /* Wait for FLOGI completion before proceeding with sending ADISCs */
427 i = wait_for_completion_timeout(&qedf->flogi_compl,
428 qedf->lport->r_a_tov);
430 QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
435 * Call lport->tt.rport_login which will cause libfc to send an
436 * ADISC since the rport is in state ready.
438 mutex_lock(&lport->disc.disc_mutex);
439 list_for_each_entry_rcu(rdata, &lport->disc.rports, peers) {
440 if (kref_get_unless_zero(&rdata->kref)) {
441 fc_rport_login(rdata);
442 kref_put(&rdata->kref, fc_rport_destroy);
445 mutex_unlock(&lport->disc.disc_mutex);
448 static void qedf_update_link_speed(struct qedf_ctx *qedf,
449 struct qed_link_output *link)
451 __ETHTOOL_DECLARE_LINK_MODE_MASK(sup_caps);
452 struct fc_lport *lport = qedf->lport;
454 lport->link_speed = FC_PORTSPEED_UNKNOWN;
455 lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
457 /* Set fc_host link speed */
458 switch (link->speed) {
460 lport->link_speed = FC_PORTSPEED_10GBIT;
463 lport->link_speed = FC_PORTSPEED_25GBIT;
466 lport->link_speed = FC_PORTSPEED_40GBIT;
469 lport->link_speed = FC_PORTSPEED_50GBIT;
472 lport->link_speed = FC_PORTSPEED_100GBIT;
475 lport->link_speed = FC_PORTSPEED_20GBIT;
478 lport->link_speed = FC_PORTSPEED_UNKNOWN;
483 * Set supported link speed by querying the supported
484 * capabilities of the link.
487 phylink_zero(sup_caps);
488 phylink_set(sup_caps, 10000baseT_Full);
489 phylink_set(sup_caps, 10000baseKX4_Full);
490 phylink_set(sup_caps, 10000baseR_FEC);
491 phylink_set(sup_caps, 10000baseCR_Full);
492 phylink_set(sup_caps, 10000baseSR_Full);
493 phylink_set(sup_caps, 10000baseLR_Full);
494 phylink_set(sup_caps, 10000baseLRM_Full);
495 phylink_set(sup_caps, 10000baseKR_Full);
497 if (linkmode_intersects(link->supported_caps, sup_caps))
498 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
500 phylink_zero(sup_caps);
501 phylink_set(sup_caps, 25000baseKR_Full);
502 phylink_set(sup_caps, 25000baseCR_Full);
503 phylink_set(sup_caps, 25000baseSR_Full);
505 if (linkmode_intersects(link->supported_caps, sup_caps))
506 lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
508 phylink_zero(sup_caps);
509 phylink_set(sup_caps, 40000baseLR4_Full);
510 phylink_set(sup_caps, 40000baseKR4_Full);
511 phylink_set(sup_caps, 40000baseCR4_Full);
512 phylink_set(sup_caps, 40000baseSR4_Full);
514 if (linkmode_intersects(link->supported_caps, sup_caps))
515 lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
517 phylink_zero(sup_caps);
518 phylink_set(sup_caps, 50000baseKR2_Full);
519 phylink_set(sup_caps, 50000baseCR2_Full);
520 phylink_set(sup_caps, 50000baseSR2_Full);
522 if (linkmode_intersects(link->supported_caps, sup_caps))
523 lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
525 phylink_zero(sup_caps);
526 phylink_set(sup_caps, 100000baseKR4_Full);
527 phylink_set(sup_caps, 100000baseSR4_Full);
528 phylink_set(sup_caps, 100000baseCR4_Full);
529 phylink_set(sup_caps, 100000baseLR4_ER4_Full);
531 if (linkmode_intersects(link->supported_caps, sup_caps))
532 lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
534 phylink_zero(sup_caps);
535 phylink_set(sup_caps, 20000baseKR2_Full);
537 if (linkmode_intersects(link->supported_caps, sup_caps))
538 lport->link_supported_speeds |= FC_PORTSPEED_20GBIT;
540 if (lport->host && lport->host->shost_data)
541 fc_host_supported_speeds(lport->host) =
542 lport->link_supported_speeds;
545 static void qedf_bw_update(void *dev)
547 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
548 struct qed_link_output link;
550 /* Get the latest status of the link */
551 qed_ops->common->get_link(qedf->cdev, &link);
553 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
554 QEDF_ERR(&qedf->dbg_ctx,
555 "Ignore link update, driver getting unload.\n");
560 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
561 qedf_update_link_speed(qedf, &link);
563 QEDF_ERR(&qedf->dbg_ctx,
564 "Ignore bw update, link is down.\n");
567 QEDF_ERR(&qedf->dbg_ctx, "link_up is not set.\n");
571 static void qedf_link_update(void *dev, struct qed_link_output *link)
573 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
576 * Prevent race where we're removing the module and we get link update
579 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
580 QEDF_ERR(&qedf->dbg_ctx,
581 "Ignore link update, driver getting unload.\n");
586 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
587 QEDF_INFO((&qedf->dbg_ctx), QEDF_LOG_DISC,
588 "Ignoring link up event as link is already up.\n");
591 QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
594 /* Cancel any pending link down work */
595 cancel_delayed_work(&qedf->link_update);
597 atomic_set(&qedf->link_state, QEDF_LINK_UP);
598 qedf_update_link_speed(qedf, link);
600 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE ||
602 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
604 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
605 queue_delayed_work(qedf->link_update_wq,
606 &qedf->link_recovery, 0);
608 queue_delayed_work(qedf->link_update_wq,
609 &qedf->link_update, 0);
610 atomic_set(&qedf->link_down_tmo_valid, 0);
614 QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
616 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
617 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
619 * Flag that we're waiting for the link to come back up before
620 * informing the fcoe layer of the event.
622 if (qedf_link_down_tmo > 0) {
623 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
624 "Starting link down tmo.\n");
625 atomic_set(&qedf->link_down_tmo_valid, 1);
628 qedf_update_link_speed(qedf, link);
629 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
630 qedf_link_down_tmo * HZ);
635 static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
637 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
640 QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
641 "prio=%d.\n", get->operational.valid, get->operational.enabled,
642 get->operational.app_prio.fcoe);
644 if (get->operational.enabled && get->operational.valid) {
645 /* If DCBX was already negotiated on link up then just exit */
646 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
647 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
648 "DCBX already set on link up.\n");
652 atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
655 * Set the 8021q priority in the following manner:
657 * 1. If a modparam is set use that
658 * 2. If the value is not between 0..7 use the default
659 * 3. Use the priority we get from the DCBX app tag
661 tmp_prio = get->operational.app_prio.fcoe;
662 if (qedf_default_prio > -1)
663 qedf->prio = qedf_default_prio;
664 else if (tmp_prio > 7) {
665 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
666 "FIP/FCoE prio %d out of range, setting to %d.\n",
667 tmp_prio, QEDF_DEFAULT_PRIO);
668 qedf->prio = QEDF_DEFAULT_PRIO;
670 qedf->prio = tmp_prio;
672 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP &&
673 !qedf_dcbx_no_wait) {
674 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
675 queue_delayed_work(qedf->link_update_wq,
676 &qedf->link_recovery, 0);
678 queue_delayed_work(qedf->link_update_wq,
679 &qedf->link_update, 0);
680 atomic_set(&qedf->link_down_tmo_valid, 0);
686 static u32 qedf_get_login_failures(void *cookie)
688 struct qedf_ctx *qedf;
690 qedf = (struct qedf_ctx *)cookie;
691 return qedf->flogi_failed;
694 static struct qed_fcoe_cb_ops qedf_cb_ops = {
696 .link_update = qedf_link_update,
697 .bw_update = qedf_bw_update,
698 .schedule_recovery_handler = qedf_schedule_recovery_handler,
699 .dcbx_aen = qedf_dcbx_handler,
700 .get_generic_tlv_data = qedf_get_generic_tlv_data,
701 .get_protocol_tlv_data = qedf_get_protocol_tlv_data,
702 .schedule_hw_err_handler = qedf_schedule_hw_err_handler,
707 * Various transport templates.
710 static struct scsi_transport_template *qedf_fc_transport_template;
711 static struct scsi_transport_template *qedf_fc_vport_transport_template;
716 static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
718 struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
719 struct fc_lport *lport;
720 struct qedf_ctx *qedf;
721 struct qedf_ioreq *io_req;
722 struct fc_rport_libfc_priv *rp = rport->dd_data;
723 struct fc_rport_priv *rdata;
724 struct qedf_rport *fcport = NULL;
726 int wait_count = 100;
731 lport = shost_priv(sc_cmd->device->host);
732 qedf = (struct qedf_ctx *)lport_priv(lport);
734 /* rport and tgt are allocated together, so tgt should be non-NULL */
735 fcport = (struct qedf_rport *)&rp[1];
736 rdata = fcport->rdata;
737 if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
738 QEDF_ERR(&qedf->dbg_ctx, "stale rport, sc_cmd=%p\n", sc_cmd);
744 io_req = (struct qedf_ioreq *)sc_cmd->SCp.ptr;
746 QEDF_ERR(&qedf->dbg_ctx,
747 "sc_cmd not queued with lld, sc_cmd=%p op=0x%02x, port_id=%06x\n",
748 sc_cmd, sc_cmd->cmnd[0],
751 goto drop_rdata_kref;
754 rval = kref_get_unless_zero(&io_req->refcount); /* ID: 005 */
758 /* If we got a valid io_req, confirm it belongs to this sc_cmd. */
759 if (!rval || io_req->sc_cmd != sc_cmd) {
760 QEDF_ERR(&qedf->dbg_ctx,
761 "Freed/Incorrect io_req, io_req->sc_cmd=%p, sc_cmd=%p, port_id=%06x, bailing out.\n",
762 io_req->sc_cmd, sc_cmd, rdata->ids.port_id);
764 goto drop_rdata_kref;
767 if (fc_remote_port_chkready(rport)) {
768 refcount = kref_read(&io_req->refcount);
769 QEDF_ERR(&qedf->dbg_ctx,
770 "rport not ready, io_req=%p, xid=0x%x sc_cmd=%p op=0x%02x, refcount=%d, port_id=%06x\n",
771 io_req, io_req->xid, sc_cmd, sc_cmd->cmnd[0],
772 refcount, rdata->ids.port_id);
774 goto drop_rdata_kref;
777 rc = fc_block_scsi_eh(sc_cmd);
779 goto drop_rdata_kref;
781 if (test_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags)) {
782 QEDF_ERR(&qedf->dbg_ctx,
783 "Connection uploading, xid=0x%x., port_id=%06x\n",
784 io_req->xid, rdata->ids.port_id);
785 while (io_req->sc_cmd && (wait_count != 0)) {
790 QEDF_ERR(&qedf->dbg_ctx, "ABTS succeeded\n");
793 QEDF_ERR(&qedf->dbg_ctx, "ABTS failed\n");
796 goto drop_rdata_kref;
799 if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
800 QEDF_ERR(&qedf->dbg_ctx, "link not ready.\n");
801 goto drop_rdata_kref;
804 QEDF_ERR(&qedf->dbg_ctx,
805 "Aborting io_req=%p sc_cmd=%p xid=0x%x fp_idx=%d, port_id=%06x.\n",
806 io_req, sc_cmd, io_req->xid, io_req->fp_idx,
809 if (qedf->stop_io_on_error) {
810 qedf_stop_all_io(qedf);
812 goto drop_rdata_kref;
815 init_completion(&io_req->abts_done);
816 rval = qedf_initiate_abts(io_req, true);
818 QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
820 * If we fail to queue the ABTS then return this command to
821 * the SCSI layer as it will own and free the xid
824 qedf_scsi_done(qedf, io_req, DID_ERROR);
825 goto drop_rdata_kref;
828 wait_for_completion(&io_req->abts_done);
830 if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
831 io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
832 io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
834 * If we get a reponse to the abort this is success from
835 * the perspective that all references to the command have
836 * been removed from the driver and firmware
840 /* If the abort and cleanup failed then return a failure */
845 QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
848 QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
852 kref_put(&rdata->kref, fc_rport_destroy);
855 kref_put(&io_req->refcount, qedf_release_cmd);
859 static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
861 QEDF_ERR(NULL, "%d:0:%d:%lld: TARGET RESET Issued...",
862 sc_cmd->device->host->host_no, sc_cmd->device->id,
863 sc_cmd->device->lun);
864 return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
867 static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
869 QEDF_ERR(NULL, "%d:0:%d:%lld: LUN RESET Issued... ",
870 sc_cmd->device->host->host_no, sc_cmd->device->id,
871 sc_cmd->device->lun);
872 return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
875 bool qedf_wait_for_upload(struct qedf_ctx *qedf)
877 struct qedf_rport *fcport = NULL;
881 if (atomic_read(&qedf->num_offloads))
882 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
883 "Waiting for all uploads to complete num_offloads = 0x%x.\n",
884 atomic_read(&qedf->num_offloads));
891 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
892 if (fcport && test_bit(QEDF_RPORT_SESSION_READY,
895 QEDF_ERR(&qedf->dbg_ctx,
896 "Waiting for fcport %p portid=%06x.\n",
897 fcport, fcport->rdata->ids.port_id);
899 QEDF_ERR(&qedf->dbg_ctx,
900 "Waiting for fcport %p.\n", fcport);
908 /* Performs soft reset of qedf_ctx by simulating a link down/up */
909 void qedf_ctx_soft_reset(struct fc_lport *lport)
911 struct qedf_ctx *qedf;
912 struct qed_link_output if_link;
915 QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n");
919 qedf = lport_priv(lport);
921 qedf->flogi_pending = 0;
922 /* For host reset, essentially do a soft link up/down */
923 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
924 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
925 "Queuing link down work.\n");
926 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
929 if (qedf_wait_for_upload(qedf) == false) {
930 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
931 WARN_ON(atomic_read(&qedf->num_offloads));
934 /* Before setting link up query physical link state */
935 qed_ops->common->get_link(qedf->cdev, &if_link);
936 /* Bail if the physical link is not up */
937 if (!if_link.link_up) {
938 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
939 "Physical link is not up.\n");
942 /* Flush and wait to make sure link down is processed */
943 flush_delayed_work(&qedf->link_update);
946 atomic_set(&qedf->link_state, QEDF_LINK_UP);
948 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
949 "Queue link up work.\n");
950 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
954 /* Reset the host by gracefully logging out and then logging back in */
955 static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
957 struct fc_lport *lport;
958 struct qedf_ctx *qedf;
960 lport = shost_priv(sc_cmd->device->host);
961 qedf = lport_priv(lport);
963 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
964 test_bit(QEDF_UNLOADING, &qedf->flags))
967 QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
969 qedf_ctx_soft_reset(lport);
974 static int qedf_slave_configure(struct scsi_device *sdev)
976 if (qedf_queue_depth) {
977 scsi_change_queue_depth(sdev, qedf_queue_depth);
983 static struct scsi_host_template qedf_host_template = {
984 .module = THIS_MODULE,
985 .name = QEDF_MODULE_NAME,
988 .max_sectors = 0xffff,
989 .queuecommand = qedf_queuecommand,
990 .shost_attrs = qedf_host_attrs,
991 .eh_abort_handler = qedf_eh_abort,
992 .eh_device_reset_handler = qedf_eh_device_reset, /* lun reset */
993 .eh_target_reset_handler = qedf_eh_target_reset, /* target reset */
994 .eh_host_reset_handler = qedf_eh_host_reset,
995 .slave_configure = qedf_slave_configure,
996 .dma_boundary = QED_HW_DMA_BOUNDARY,
997 .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
998 .can_queue = FCOE_PARAMS_NUM_TASKS,
999 .change_queue_depth = scsi_change_queue_depth,
1002 static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
1006 spin_lock(&qedf_global_lock);
1007 rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
1008 spin_unlock(&qedf_global_lock);
1013 static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
1015 struct qedf_rport *fcport;
1016 struct fc_rport_priv *rdata;
1019 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
1020 rdata = fcport->rdata;
1023 if (rdata->ids.port_id == port_id) {
1030 /* Return NULL to caller to let them know fcport was not found */
1034 /* Transmits an ELS frame over an offloaded session */
1035 static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
1037 struct fc_frame_header *fh;
1040 fh = fc_frame_header_get(fp);
1041 if ((fh->fh_type == FC_TYPE_ELS) &&
1042 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1043 switch (fc_frame_payload_op(fp)) {
1045 qedf_send_adisc(fcport, fp);
1055 * qedf_xmit - qedf FCoE frame transmit function
1057 static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
1059 struct fc_lport *base_lport;
1060 struct qedf_ctx *qedf;
1062 struct fcoe_crc_eof *cp;
1063 struct sk_buff *skb;
1064 struct fc_frame_header *fh;
1065 struct fcoe_hdr *hp;
1068 unsigned int hlen, tlen, elen;
1070 struct fc_stats *stats;
1071 struct fc_lport *tmp_lport;
1072 struct fc_lport *vn_port = NULL;
1073 struct qedf_rport *fcport;
1077 qedf = (struct qedf_ctx *)lport_priv(lport);
1079 fh = fc_frame_header_get(fp);
1082 /* Filter out traffic to other NPIV ports on the same host */
1084 base_lport = shost_priv(vport_to_shost(lport->vport));
1088 /* Flag if the destination is the base port */
1089 if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
1090 vn_port = base_lport;
1092 /* Got through the list of vports attached to the base_lport
1093 * and see if we have a match with the destination address.
1095 list_for_each_entry(tmp_lport, &base_lport->vports, list) {
1096 if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
1097 vn_port = tmp_lport;
1102 if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
1103 struct fc_rport_priv *rdata = NULL;
1105 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
1106 "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
1108 rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
1110 rdata->retries = lport->max_rport_retry_count;
1111 kref_put(&rdata->kref, fc_rport_destroy);
1115 /* End NPIV filtering */
1117 if (!qedf->ctlr.sel_fcf) {
1122 if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
1123 QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
1128 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
1129 QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
1134 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1135 if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
1139 /* Check to see if this needs to be sent on an offloaded session */
1140 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
1142 if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1143 rc = qedf_xmit_l2_frame(fcport, fp);
1145 * If the frame was successfully sent over the middle path
1146 * then do not try to also send it over the LL2 path
1155 elen = sizeof(struct ethhdr);
1156 hlen = sizeof(struct fcoe_hdr);
1157 tlen = sizeof(struct fcoe_crc_eof);
1158 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
1160 skb->ip_summed = CHECKSUM_NONE;
1161 crc = fcoe_fc_crc(fp);
1163 /* copy port crc and eof to the skb buff */
1164 if (skb_is_nonlinear(skb)) {
1167 if (qedf_get_paged_crc_eof(skb, tlen)) {
1171 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
1172 cp = kmap_atomic(skb_frag_page(frag)) + skb_frag_off(frag);
1174 cp = skb_put(skb, tlen);
1177 memset(cp, 0, sizeof(*cp));
1179 cp->fcoe_crc32 = cpu_to_le32(~crc);
1180 if (skb_is_nonlinear(skb)) {
1186 /* adjust skb network/transport offsets to match mac/fcoe/port */
1187 skb_push(skb, elen + hlen);
1188 skb_reset_mac_header(skb);
1189 skb_reset_network_header(skb);
1190 skb->mac_len = elen;
1191 skb->protocol = htons(ETH_P_FCOE);
1194 * Add VLAN tag to non-offload FCoE frame based on current stored VLAN
1195 * for FIP/FCoE traffic.
1197 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
1199 /* fill up mac and fcoe headers */
1201 eh->h_proto = htons(ETH_P_FCOE);
1202 if (qedf->ctlr.map_dest)
1203 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
1205 /* insert GW address */
1206 ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
1208 /* Set the source MAC address */
1209 ether_addr_copy(eh->h_source, qedf->data_src_addr);
1211 hp = (struct fcoe_hdr *)(eh + 1);
1212 memset(hp, 0, sizeof(*hp));
1214 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
1217 /*update tx stats */
1218 stats = per_cpu_ptr(lport->stats, get_cpu());
1220 stats->TxWords += wlen;
1223 /* Get VLAN ID from skb for printing purposes */
1224 __vlan_hwaccel_get_tag(skb, &vlan_tci);
1226 /* send down to lld */
1228 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
1229 "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
1230 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
1232 if (qedf_dump_frames)
1233 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
1234 1, skb->data, skb->len, false);
1235 rc = qed_ops->ll2->start_xmit(qedf->cdev, skb, 0);
1237 QEDF_ERR(&qedf->dbg_ctx, "start_xmit failed rc = %d.\n", rc);
1245 static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1252 /* Calculate appropriate queue and PBL sizes */
1253 fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
1254 fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
1255 fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
1257 fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
1259 fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1260 &fcport->sq_dma, GFP_KERNEL);
1262 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue.\n");
1267 fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
1268 fcport->sq_pbl_size,
1269 &fcport->sq_pbl_dma, GFP_KERNEL);
1270 if (!fcport->sq_pbl) {
1271 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue PBL.\n");
1277 num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
1278 page = fcport->sq_dma;
1279 pbl = (u32 *)fcport->sq_pbl;
1281 while (num_pages--) {
1282 *pbl = U64_LO(page);
1284 *pbl = U64_HI(page);
1286 page += QEDF_PAGE_SIZE;
1292 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
1298 static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1301 dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
1302 fcport->sq_pbl, fcport->sq_pbl_dma);
1304 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1305 fcport->sq, fcport->sq_dma);
1308 static int qedf_offload_connection(struct qedf_ctx *qedf,
1309 struct qedf_rport *fcport)
1311 struct qed_fcoe_params_offload conn_info;
1314 uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
1316 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
1317 "portid=%06x.\n", fcport->rdata->ids.port_id);
1318 rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
1319 &fcport->fw_cid, &fcport->p_doorbell);
1321 QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
1322 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1323 rval = 1; /* For some reason qed returns 0 on failure here */
1327 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
1328 "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
1329 fcport->fw_cid, fcport->handle);
1331 memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
1333 /* Fill in the offload connection info */
1334 conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
1336 conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
1337 conn_info.sq_next_page_addr =
1338 (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
1340 /* Need to use our FCoE MAC for the offload session */
1341 ether_addr_copy(conn_info.src_mac, qedf->data_src_addr);
1343 ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
1345 conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
1346 conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov;
1347 conn_info.rec_tov_timer_val = 3; /* I think this is what E3 was */
1348 conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
1351 conn_info.vlan_tag = qedf->vlan_id <<
1352 FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
1353 conn_info.vlan_tag |=
1354 qedf->prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
1355 conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
1356 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
1358 /* Set host port source id */
1359 port_id = fc_host_port_id(qedf->lport->host);
1360 fcport->sid = port_id;
1361 conn_info.s_id.addr_hi = (port_id & 0x000000FF);
1362 conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1363 conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1365 conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
1367 /* Set remote port destination id */
1368 port_id = fcport->rdata->rport->port_id;
1369 conn_info.d_id.addr_hi = (port_id & 0x000000FF);
1370 conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1371 conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1373 conn_info.def_q_idx = 0; /* Default index for send queue? */
1375 /* Set FC-TAPE specific flags if needed */
1376 if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
1377 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
1378 "Enable CONF, REC for portid=%06x.\n",
1379 fcport->rdata->ids.port_id);
1380 conn_info.flags |= 1 <<
1381 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
1383 ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
1384 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
1387 rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
1389 QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
1390 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1393 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
1394 "succeeded portid=%06x total_sqe=%d.\n",
1395 fcport->rdata->ids.port_id, total_sqe);
1397 spin_lock_init(&fcport->rport_lock);
1398 atomic_set(&fcport->free_sqes, total_sqe);
1401 qed_ops->release_conn(qedf->cdev, fcport->handle);
1406 #define QEDF_TERM_BUFF_SIZE 10
1407 static void qedf_upload_connection(struct qedf_ctx *qedf,
1408 struct qedf_rport *fcport)
1411 dma_addr_t term_params_dma;
1413 /* Term params needs to be a DMA coherent buffer as qed shared the
1414 * physical DMA address with the firmware. The buffer may be used in
1415 * the receive path so we may eventually have to move this.
1417 term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
1418 &term_params_dma, GFP_KERNEL);
1420 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
1421 "port_id=%06x.\n", fcport->rdata->ids.port_id);
1423 qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
1424 qed_ops->release_conn(qedf->cdev, fcport->handle);
1426 dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
1430 static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
1431 struct qedf_rport *fcport)
1433 struct fc_rport_priv *rdata = fcport->rdata;
1435 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
1436 fcport->rdata->ids.port_id);
1438 /* Flush any remaining i/o's before we upload the connection */
1439 qedf_flush_active_ios(fcport, -1);
1441 if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
1442 qedf_upload_connection(qedf, fcport);
1443 qedf_free_sq(qedf, fcport);
1444 fcport->rdata = NULL;
1445 fcport->qedf = NULL;
1446 kref_put(&rdata->kref, fc_rport_destroy);
1450 * This event_callback is called after successful completion of libfc
1451 * initiated target login. qedf can proceed with initiating the session
1454 static void qedf_rport_event_handler(struct fc_lport *lport,
1455 struct fc_rport_priv *rdata,
1456 enum fc_rport_event event)
1458 struct qedf_ctx *qedf = lport_priv(lport);
1459 struct fc_rport *rport = rdata->rport;
1460 struct fc_rport_libfc_priv *rp;
1461 struct qedf_rport *fcport;
1464 unsigned long flags;
1466 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
1467 "port_id = 0x%x\n", event, rdata->ids.port_id);
1470 case RPORT_EV_READY:
1472 QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
1476 rp = rport->dd_data;
1477 fcport = (struct qedf_rport *)&rp[1];
1478 fcport->qedf = qedf;
1480 if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
1481 QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
1482 "portid=0x%x as max number of offloaded sessions "
1483 "reached.\n", rdata->ids.port_id);
1488 * Don't try to offload the session again. Can happen when we
1491 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1492 QEDF_WARN(&(qedf->dbg_ctx), "Session already "
1493 "offloaded, portid=0x%x.\n",
1494 rdata->ids.port_id);
1498 if (rport->port_id == FC_FID_DIR_SERV) {
1500 * qedf_rport structure doesn't exist for
1502 * We should not come here, as lport will
1503 * take care of fabric login
1505 QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
1506 "exist for dir server port_id=%x\n",
1507 rdata->ids.port_id);
1511 if (rdata->spp_type != FC_TYPE_FCP) {
1512 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1513 "Not offloading since spp type isn't FCP\n");
1516 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1517 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1518 "Not FCP target so not offloading\n");
1522 /* Initial reference held on entry, so this can't fail */
1523 kref_get(&rdata->kref);
1524 fcport->rdata = rdata;
1525 fcport->rport = rport;
1527 rval = qedf_alloc_sq(qedf, fcport);
1529 qedf_cleanup_fcport(qedf, fcport);
1533 /* Set device type */
1534 if (rdata->flags & FC_RP_FLAGS_RETRY &&
1535 rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
1536 !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
1537 fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
1538 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1539 "portid=%06x is a TAPE device.\n",
1540 rdata->ids.port_id);
1542 fcport->dev_type = QEDF_RPORT_TYPE_DISK;
1545 rval = qedf_offload_connection(qedf, fcport);
1547 qedf_cleanup_fcport(qedf, fcport);
1551 /* Add fcport to list of qedf_ctx list of offloaded ports */
1552 spin_lock_irqsave(&qedf->hba_lock, flags);
1553 list_add_rcu(&fcport->peers, &qedf->fcports);
1554 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1557 * Set the session ready bit to let everyone know that this
1558 * connection is ready for I/O
1560 set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
1561 atomic_inc(&qedf->num_offloads);
1565 case RPORT_EV_FAILED:
1567 port_id = rdata->ids.port_id;
1568 if (port_id == FC_FID_DIR_SERV)
1571 if (rdata->spp_type != FC_TYPE_FCP) {
1572 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1573 "No action since spp type isn't FCP\n");
1576 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1577 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1578 "Not FCP target so no action\n");
1583 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1584 "port_id=%x - rport notcreated Yet!!\n", port_id);
1587 rp = rport->dd_data;
1589 * Perform session upload. Note that rdata->peers is already
1590 * removed from disc->rports list before we get this event.
1592 fcport = (struct qedf_rport *)&rp[1];
1594 spin_lock_irqsave(&fcport->rport_lock, flags);
1595 /* Only free this fcport if it is offloaded already */
1596 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags) &&
1597 !test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1599 set_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1601 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1602 qedf_cleanup_fcport(qedf, fcport);
1604 * Remove fcport to list of qedf_ctx list of offloaded
1607 spin_lock_irqsave(&qedf->hba_lock, flags);
1608 list_del_rcu(&fcport->peers);
1609 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1611 clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1613 atomic_dec(&qedf->num_offloads);
1615 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1624 static void qedf_abort_io(struct fc_lport *lport)
1626 /* NO-OP but need to fill in the template */
1629 static void qedf_fcp_cleanup(struct fc_lport *lport)
1632 * NO-OP but need to fill in template to prevent a NULL
1633 * function pointer dereference during link down. I/Os
1634 * will be flushed when port is uploaded.
1638 static struct libfc_function_template qedf_lport_template = {
1639 .frame_send = qedf_xmit,
1640 .fcp_abort_io = qedf_abort_io,
1641 .fcp_cleanup = qedf_fcp_cleanup,
1642 .rport_event_callback = qedf_rport_event_handler,
1643 .elsct_send = qedf_elsct_send,
1646 static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
1648 fcoe_ctlr_init(&qedf->ctlr, FIP_MODE_AUTO);
1650 qedf->ctlr.send = qedf_fip_send;
1651 qedf->ctlr.get_src_addr = qedf_get_src_mac;
1652 ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
1655 static void qedf_setup_fdmi(struct qedf_ctx *qedf)
1657 struct fc_lport *lport = qedf->lport;
1663 * fdmi_enabled needs to be set for libfc
1664 * to execute FDMI registration
1666 lport->fdmi_enabled = 1;
1669 * Setup the necessary fc_host attributes to that will be used to fill
1670 * in the FDMI information.
1673 /* Get the PCI-e Device Serial Number Capability */
1674 pos = pci_find_ext_capability(qedf->pdev, PCI_EXT_CAP_ID_DSN);
1677 for (i = 0; i < 8; i++)
1678 pci_read_config_byte(qedf->pdev, pos + i, &buf[i]);
1680 snprintf(fc_host_serial_number(lport->host),
1681 FC_SERIAL_NUMBER_SIZE,
1682 "%02X%02X%02X%02X%02X%02X%02X%02X",
1683 buf[7], buf[6], buf[5], buf[4],
1684 buf[3], buf[2], buf[1], buf[0]);
1686 snprintf(fc_host_serial_number(lport->host),
1687 FC_SERIAL_NUMBER_SIZE, "Unknown");
1689 snprintf(fc_host_manufacturer(lport->host),
1690 FC_SERIAL_NUMBER_SIZE, "%s", "Marvell Semiconductor Inc.");
1692 if (qedf->pdev->device == QL45xxx) {
1693 snprintf(fc_host_model(lport->host),
1694 FC_SYMBOLIC_NAME_SIZE, "%s", "QL45xxx");
1696 snprintf(fc_host_model_description(lport->host),
1697 FC_SYMBOLIC_NAME_SIZE, "%s",
1698 "Marvell FastLinQ QL45xxx FCoE Adapter");
1701 if (qedf->pdev->device == QL41xxx) {
1702 snprintf(fc_host_model(lport->host),
1703 FC_SYMBOLIC_NAME_SIZE, "%s", "QL41xxx");
1705 snprintf(fc_host_model_description(lport->host),
1706 FC_SYMBOLIC_NAME_SIZE, "%s",
1707 "Marvell FastLinQ QL41xxx FCoE Adapter");
1710 snprintf(fc_host_hardware_version(lport->host),
1711 FC_VERSION_STRING_SIZE, "Rev %d", qedf->pdev->revision);
1713 snprintf(fc_host_driver_version(lport->host),
1714 FC_VERSION_STRING_SIZE, "%s", QEDF_VERSION);
1716 snprintf(fc_host_firmware_version(lport->host),
1717 FC_VERSION_STRING_SIZE, "%d.%d.%d.%d",
1718 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
1719 FW_ENGINEERING_VERSION);
1723 static int qedf_lport_setup(struct qedf_ctx *qedf)
1725 struct fc_lport *lport = qedf->lport;
1728 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1729 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1730 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1731 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1732 lport->boot_time = jiffies;
1733 lport->e_d_tov = 2 * 1000;
1734 lport->r_a_tov = 10 * 1000;
1736 /* Set NPIV support */
1737 lport->does_npiv = 1;
1738 fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
1740 fc_set_wwnn(lport, qedf->wwnn);
1741 fc_set_wwpn(lport, qedf->wwpn);
1743 if (fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0)) {
1744 QEDF_ERR(&qedf->dbg_ctx,
1745 "fcoe_libfc_config failed.\n");
1749 /* Allocate the exchange manager */
1750 fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_PARAMS_NUM_TASKS,
1753 if (fc_lport_init_stats(lport))
1756 /* Finish lport config */
1757 fc_lport_config(lport);
1759 /* Set max frame size */
1760 fc_set_mfs(lport, QEDF_MFS);
1761 fc_host_maxframe_size(lport->host) = lport->mfs;
1763 /* Set default dev_loss_tmo based on module parameter */
1764 fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
1766 /* Set symbolic node name */
1767 if (qedf->pdev->device == QL45xxx)
1768 snprintf(fc_host_symbolic_name(lport->host), 256,
1769 "Marvell FastLinQ 45xxx FCoE v%s", QEDF_VERSION);
1771 if (qedf->pdev->device == QL41xxx)
1772 snprintf(fc_host_symbolic_name(lport->host), 256,
1773 "Marvell FastLinQ 41xxx FCoE v%s", QEDF_VERSION);
1775 qedf_setup_fdmi(qedf);
1784 static int qedf_vport_libfc_config(struct fc_vport *vport,
1785 struct fc_lport *lport)
1789 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1790 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1791 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1792 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1793 lport->boot_time = jiffies;
1794 lport->e_d_tov = 2 * 1000;
1795 lport->r_a_tov = 10 * 1000;
1796 lport->does_npiv = 1; /* Temporary until we add NPIV support */
1798 /* Allocate stats for vport */
1799 if (fc_lport_init_stats(lport))
1802 /* Finish lport config */
1803 fc_lport_config(lport);
1805 /* offload related configuration */
1806 lport->crc_offload = 0;
1807 lport->seq_offload = 0;
1808 lport->lro_enabled = 0;
1815 static int qedf_vport_create(struct fc_vport *vport, bool disabled)
1817 struct Scsi_Host *shost = vport_to_shost(vport);
1818 struct fc_lport *n_port = shost_priv(shost);
1819 struct fc_lport *vn_port;
1820 struct qedf_ctx *base_qedf = lport_priv(n_port);
1821 struct qedf_ctx *vport_qedf;
1826 rc = fcoe_validate_vport_create(vport);
1828 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1829 QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
1830 "WWPN (0x%s) already exists.\n", buf);
1834 if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
1835 QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
1836 "because link is not up.\n");
1840 vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
1842 QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
1847 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1848 QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
1851 /* Copy some fields from base_qedf */
1852 vport_qedf = lport_priv(vn_port);
1853 memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
1855 /* Set qedf data specific to this vport */
1856 vport_qedf->lport = vn_port;
1857 /* Use same hba_lock as base_qedf */
1858 vport_qedf->hba_lock = base_qedf->hba_lock;
1859 vport_qedf->pdev = base_qedf->pdev;
1860 vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
1861 init_completion(&vport_qedf->flogi_compl);
1862 INIT_LIST_HEAD(&vport_qedf->fcports);
1863 INIT_DELAYED_WORK(&vport_qedf->stag_work, qedf_stag_change_work);
1865 rc = qedf_vport_libfc_config(vport, vn_port);
1867 QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
1868 "for lport stats.\n");
1872 fc_set_wwnn(vn_port, vport->node_name);
1873 fc_set_wwpn(vn_port, vport->port_name);
1874 vport_qedf->wwnn = vn_port->wwnn;
1875 vport_qedf->wwpn = vn_port->wwpn;
1877 vn_port->host->transportt = qedf_fc_vport_transport_template;
1878 vn_port->host->can_queue = FCOE_PARAMS_NUM_TASKS;
1879 vn_port->host->max_lun = qedf_max_lun;
1880 vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
1881 vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
1883 rc = scsi_add_host(vn_port->host, &vport->dev);
1885 QEDF_WARN(&base_qedf->dbg_ctx,
1886 "Error adding Scsi_Host rc=0x%x.\n", rc);
1890 /* Set default dev_loss_tmo based on module parameter */
1891 fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
1893 /* Init libfc stuffs */
1894 memcpy(&vn_port->tt, &qedf_lport_template,
1895 sizeof(qedf_lport_template));
1896 fc_exch_init(vn_port);
1897 fc_elsct_init(vn_port);
1898 fc_lport_init(vn_port);
1899 fc_disc_init(vn_port);
1900 fc_disc_config(vn_port, vn_port);
1903 /* Allocate the exchange manager */
1904 shost = vport_to_shost(vport);
1905 n_port = shost_priv(shost);
1906 fc_exch_mgr_list_clone(n_port, vn_port);
1908 /* Set max frame size */
1909 fc_set_mfs(vn_port, QEDF_MFS);
1911 fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
1914 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1916 vn_port->boot_time = jiffies;
1917 fc_fabric_login(vn_port);
1918 fc_vport_setlink(vn_port);
1921 /* Set symbolic node name */
1922 if (base_qedf->pdev->device == QL45xxx)
1923 snprintf(fc_host_symbolic_name(vn_port->host), 256,
1924 "Marvell FastLinQ 45xxx FCoE v%s", QEDF_VERSION);
1926 if (base_qedf->pdev->device == QL41xxx)
1927 snprintf(fc_host_symbolic_name(vn_port->host), 256,
1928 "Marvell FastLinQ 41xxx FCoE v%s", QEDF_VERSION);
1930 /* Set supported speed */
1931 fc_host_supported_speeds(vn_port->host) = n_port->link_supported_speeds;
1934 vn_port->link_speed = n_port->link_speed;
1937 fc_host_port_type(vn_port->host) = FC_PORTTYPE_NPIV;
1939 /* Set maxframe size */
1940 fc_host_maxframe_size(vn_port->host) = n_port->mfs;
1942 QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
1945 /* Set up debug context for vport */
1946 vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
1947 vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
1952 scsi_host_put(vn_port->host);
1956 static int qedf_vport_destroy(struct fc_vport *vport)
1958 struct Scsi_Host *shost = vport_to_shost(vport);
1959 struct fc_lport *n_port = shost_priv(shost);
1960 struct fc_lport *vn_port = vport->dd_data;
1961 struct qedf_ctx *qedf = lport_priv(vn_port);
1964 QEDF_ERR(NULL, "qedf is NULL.\n");
1968 /* Set unloading bit on vport qedf_ctx to prevent more I/O */
1969 set_bit(QEDF_UNLOADING, &qedf->flags);
1971 mutex_lock(&n_port->lp_mutex);
1972 list_del(&vn_port->list);
1973 mutex_unlock(&n_port->lp_mutex);
1975 fc_fabric_logoff(vn_port);
1976 fc_lport_destroy(vn_port);
1978 /* Detach from scsi-ml */
1979 fc_remove_host(vn_port->host);
1980 scsi_remove_host(vn_port->host);
1983 * Only try to release the exchange manager if the vn_port
1984 * configuration is complete.
1986 if (vn_port->state == LPORT_ST_READY)
1987 fc_exch_mgr_free(vn_port);
1989 /* Free memory used by statistical counters */
1990 fc_lport_free_stats(vn_port);
1992 /* Release Scsi_Host */
1993 scsi_host_put(vn_port->host);
1999 static int qedf_vport_disable(struct fc_vport *vport, bool disable)
2001 struct fc_lport *lport = vport->dd_data;
2004 fc_vport_set_state(vport, FC_VPORT_DISABLED);
2005 fc_fabric_logoff(lport);
2007 lport->boot_time = jiffies;
2008 fc_fabric_login(lport);
2009 fc_vport_setlink(lport);
2015 * During removal we need to wait for all the vports associated with a port
2016 * to be destroyed so we avoid a race condition where libfc is still trying
2017 * to reap vports while the driver remove function has already reaped the
2018 * driver contexts associated with the physical port.
2020 static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
2022 struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
2024 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
2026 while (fc_host->npiv_vports_inuse > 0) {
2027 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
2028 "Waiting for all vports to be reaped.\n");
2034 * qedf_fcoe_reset - Resets the fcoe
2036 * @shost: shost the reset is from
2040 static int qedf_fcoe_reset(struct Scsi_Host *shost)
2042 struct fc_lport *lport = shost_priv(shost);
2044 qedf_ctx_soft_reset(lport);
2048 static void qedf_get_host_port_id(struct Scsi_Host *shost)
2050 struct fc_lport *lport = shost_priv(shost);
2052 fc_host_port_id(shost) = lport->port_id;
2055 static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
2058 struct fc_host_statistics *qedf_stats;
2059 struct fc_lport *lport = shost_priv(shost);
2060 struct qedf_ctx *qedf = lport_priv(lport);
2061 struct qed_fcoe_stats *fw_fcoe_stats;
2063 qedf_stats = fc_get_host_stats(shost);
2065 /* We don't collect offload stats for specific NPIV ports */
2069 fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
2070 if (!fw_fcoe_stats) {
2071 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
2072 "fw_fcoe_stats.\n");
2076 mutex_lock(&qedf->stats_mutex);
2078 /* Query firmware for offload stats */
2079 qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
2082 * The expectation is that we add our offload stats to the stats
2083 * being maintained by libfc each time the fc_get_host_status callback
2084 * is invoked. The additions are not carried over for each call to
2085 * the fc_get_host_stats callback.
2087 qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
2088 fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
2089 fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
2090 qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
2091 fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
2092 fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
2093 qedf_stats->fcp_input_megabytes +=
2094 do_div(fw_fcoe_stats->fcoe_rx_byte_cnt, 1000000);
2095 qedf_stats->fcp_output_megabytes +=
2096 do_div(fw_fcoe_stats->fcoe_tx_byte_cnt, 1000000);
2097 qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
2098 qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
2099 qedf_stats->invalid_crc_count +=
2100 fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
2101 qedf_stats->dumped_frames =
2102 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
2103 qedf_stats->error_frames +=
2104 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
2105 qedf_stats->fcp_input_requests += qedf->input_requests;
2106 qedf_stats->fcp_output_requests += qedf->output_requests;
2107 qedf_stats->fcp_control_requests += qedf->control_requests;
2108 qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
2109 qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
2111 mutex_unlock(&qedf->stats_mutex);
2112 kfree(fw_fcoe_stats);
2117 static struct fc_function_template qedf_fc_transport_fn = {
2118 .show_host_node_name = 1,
2119 .show_host_port_name = 1,
2120 .show_host_supported_classes = 1,
2121 .show_host_supported_fc4s = 1,
2122 .show_host_active_fc4s = 1,
2123 .show_host_maxframe_size = 1,
2125 .get_host_port_id = qedf_get_host_port_id,
2126 .show_host_port_id = 1,
2127 .show_host_supported_speeds = 1,
2128 .get_host_speed = fc_get_host_speed,
2129 .show_host_speed = 1,
2130 .show_host_port_type = 1,
2131 .get_host_port_state = fc_get_host_port_state,
2132 .show_host_port_state = 1,
2133 .show_host_symbolic_name = 1,
2136 * Tell FC transport to allocate enough space to store the backpointer
2137 * for the associate qedf_rport struct.
2139 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2140 sizeof(struct qedf_rport)),
2141 .show_rport_maxframe_size = 1,
2142 .show_rport_supported_classes = 1,
2143 .show_host_fabric_name = 1,
2144 .show_starget_node_name = 1,
2145 .show_starget_port_name = 1,
2146 .show_starget_port_id = 1,
2147 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2148 .show_rport_dev_loss_tmo = 1,
2149 .get_fc_host_stats = qedf_fc_get_host_stats,
2150 .issue_fc_host_lip = qedf_fcoe_reset,
2151 .vport_create = qedf_vport_create,
2152 .vport_delete = qedf_vport_destroy,
2153 .vport_disable = qedf_vport_disable,
2154 .bsg_request = fc_lport_bsg_request,
2157 static struct fc_function_template qedf_fc_vport_transport_fn = {
2158 .show_host_node_name = 1,
2159 .show_host_port_name = 1,
2160 .show_host_supported_classes = 1,
2161 .show_host_supported_fc4s = 1,
2162 .show_host_active_fc4s = 1,
2163 .show_host_maxframe_size = 1,
2164 .show_host_port_id = 1,
2165 .show_host_supported_speeds = 1,
2166 .get_host_speed = fc_get_host_speed,
2167 .show_host_speed = 1,
2168 .show_host_port_type = 1,
2169 .get_host_port_state = fc_get_host_port_state,
2170 .show_host_port_state = 1,
2171 .show_host_symbolic_name = 1,
2172 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2173 sizeof(struct qedf_rport)),
2174 .show_rport_maxframe_size = 1,
2175 .show_rport_supported_classes = 1,
2176 .show_host_fabric_name = 1,
2177 .show_starget_node_name = 1,
2178 .show_starget_port_name = 1,
2179 .show_starget_port_id = 1,
2180 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2181 .show_rport_dev_loss_tmo = 1,
2182 .get_fc_host_stats = fc_get_host_stats,
2183 .issue_fc_host_lip = qedf_fcoe_reset,
2184 .bsg_request = fc_lport_bsg_request,
2187 static bool qedf_fp_has_work(struct qedf_fastpath *fp)
2189 struct qedf_ctx *qedf = fp->qedf;
2190 struct global_queue *que;
2191 struct qed_sb_info *sb_info = fp->sb_info;
2192 struct status_block_e4 *sb = sb_info->sb_virt;
2195 /* Get the pointer to the global CQ this completion is on */
2196 que = qedf->global_queues[fp->sb_id];
2198 /* Be sure all responses have been written to PI */
2201 /* Get the current firmware producer index */
2202 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2204 return (que->cq_prod_idx != prod_idx);
2208 * Interrupt handler code.
2211 /* Process completion queue and copy CQE contents for deferred processesing
2213 * Return true if we should wake the I/O thread, false if not.
2215 static bool qedf_process_completions(struct qedf_fastpath *fp)
2217 struct qedf_ctx *qedf = fp->qedf;
2218 struct qed_sb_info *sb_info = fp->sb_info;
2219 struct status_block_e4 *sb = sb_info->sb_virt;
2220 struct global_queue *que;
2222 struct fcoe_cqe *cqe;
2223 struct qedf_io_work *io_work;
2224 int num_handled = 0;
2226 struct qedf_ioreq *io_req = NULL;
2231 /* Get the current firmware producer index */
2232 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2234 /* Get the pointer to the global CQ this completion is on */
2235 que = qedf->global_queues[fp->sb_id];
2237 /* Calculate the amount of new elements since last processing */
2238 new_cqes = (prod_idx >= que->cq_prod_idx) ?
2239 (prod_idx - que->cq_prod_idx) :
2240 0x10000 - que->cq_prod_idx + prod_idx;
2242 /* Save producer index */
2243 que->cq_prod_idx = prod_idx;
2248 cqe = &que->cq[que->cq_cons_idx];
2250 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2251 FCOE_CQE_CQE_TYPE_MASK;
2254 * Process unsolicited CQEs directly in the interrupt handler
2255 * sine we need the fastpath ID
2257 if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
2258 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
2259 "Unsolicated CQE.\n");
2260 qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
2262 * Don't add a work list item. Increment consumer
2263 * consumer index and move on.
2268 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2269 io_req = &qedf->cmd_mgr->cmds[xid];
2272 * Figure out which percpu thread we should queue this I/O
2276 /* If there is not io_req assocated with this CQE
2277 * just queue it on CPU 0
2282 io_req->int_cpu = smp_processor_id();
2285 io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
2287 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
2288 "work for I/O completion.\n");
2291 memset(io_work, 0, sizeof(struct qedf_io_work));
2293 INIT_WORK(&io_work->work, qedf_fp_io_handler);
2295 /* Copy contents of CQE for deferred processing */
2296 memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
2298 io_work->qedf = fp->qedf;
2299 io_work->fp = NULL; /* Only used for unsolicited frames */
2301 queue_work_on(cpu, qedf_io_wq, &io_work->work);
2305 if (que->cq_cons_idx == fp->cq_num_entries)
2306 que->cq_cons_idx = 0;
2314 /* MSI-X fastpath handler code */
2315 static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
2317 struct qedf_fastpath *fp = dev_id;
2320 QEDF_ERR(NULL, "fp is null.\n");
2324 QEDF_ERR(NULL, "fp->sb_info in null.");
2329 * Disable interrupts for this status block while we process new
2332 qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/);
2335 qedf_process_completions(fp);
2337 if (qedf_fp_has_work(fp) == 0) {
2338 /* Update the sb information */
2339 qed_sb_update_sb_idx(fp->sb_info);
2341 /* Check for more work */
2344 if (qedf_fp_has_work(fp) == 0) {
2345 /* Re-enable interrupts */
2346 qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
2352 /* Do we ever want to break out of above loop? */
2356 /* simd handler for MSI/INTa */
2357 static void qedf_simd_int_handler(void *cookie)
2359 /* Cookie is qedf_ctx struct */
2360 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2362 QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
2365 #define QEDF_SIMD_HANDLER_NUM 0
2366 static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
2372 if (qedf->int_info.msix_cnt) {
2373 for (i = 0; i < qedf->int_info.used_cnt; i++) {
2374 vector_idx = i * qedf->dev_info.common.num_hwfns +
2375 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2376 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2377 "Freeing IRQ #%d vector_idx=%d.\n",
2379 vector = qedf->int_info.msix[vector_idx].vector;
2380 synchronize_irq(vector);
2381 irq_set_affinity_hint(vector, NULL);
2382 irq_set_affinity_notifier(vector, NULL);
2383 free_irq(vector, &qedf->fp_array[i]);
2386 qed_ops->common->simd_handler_clean(qedf->cdev,
2387 QEDF_SIMD_HANDLER_NUM);
2389 qedf->int_info.used_cnt = 0;
2390 qed_ops->common->set_fp_int(qedf->cdev, 0);
2393 static int qedf_request_msix_irq(struct qedf_ctx *qedf)
2399 cpu = cpumask_first(cpu_online_mask);
2400 for (i = 0; i < qedf->num_queues; i++) {
2401 vector_idx = i * qedf->dev_info.common.num_hwfns +
2402 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2403 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2404 "Requesting IRQ #%d vector_idx=%d.\n",
2406 vector = qedf->int_info.msix[vector_idx].vector;
2407 rc = request_irq(vector, qedf_msix_handler, 0, "qedf",
2408 &qedf->fp_array[i]);
2411 QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
2412 qedf_sync_free_irqs(qedf);
2416 qedf->int_info.used_cnt++;
2417 rc = irq_set_affinity_hint(vector, get_cpu_mask(cpu));
2418 cpu = cpumask_next(cpu, cpu_online_mask);
2424 static int qedf_setup_int(struct qedf_ctx *qedf)
2429 * Learn interrupt configuration
2431 rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
2435 rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
2439 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
2440 "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
2443 if (qedf->int_info.msix_cnt)
2444 return qedf_request_msix_irq(qedf);
2446 qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
2447 QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
2448 qedf->int_info.used_cnt = 1;
2450 QEDF_ERR(&qedf->dbg_ctx,
2451 "Cannot load driver due to a lack of MSI-X vectors.\n");
2455 /* Main function for libfc frame reception */
2456 static void qedf_recv_frame(struct qedf_ctx *qedf,
2457 struct sk_buff *skb)
2460 struct fc_lport *lport;
2461 struct fc_frame_header *fh;
2462 struct fcoe_crc_eof crc_eof;
2463 struct fc_frame *fp;
2465 u8 *dest_mac = NULL;
2466 struct fcoe_hdr *hp;
2467 struct qedf_rport *fcport;
2468 struct fc_lport *vn_port;
2471 lport = qedf->lport;
2472 if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
2473 QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
2478 if (skb_is_nonlinear(skb))
2480 mac = eth_hdr(skb)->h_source;
2481 dest_mac = eth_hdr(skb)->h_dest;
2483 /* Pull the header */
2484 hp = (struct fcoe_hdr *)skb->data;
2485 fh = (struct fc_frame_header *) skb_transport_header(skb);
2486 skb_pull(skb, sizeof(struct fcoe_hdr));
2487 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
2489 fp = (struct fc_frame *)skb;
2492 fr_sof(fp) = hp->fcoe_sof;
2493 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
2494 QEDF_INFO(NULL, QEDF_LOG_LL2, "skb_copy_bits failed.\n");
2498 fr_eof(fp) = crc_eof.fcoe_eof;
2499 fr_crc(fp) = crc_eof.fcoe_crc32;
2500 if (pskb_trim(skb, fr_len)) {
2501 QEDF_INFO(NULL, QEDF_LOG_LL2, "pskb_trim failed.\n");
2506 fh = fc_frame_header_get(fp);
2509 * Invalid frame filters.
2512 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
2513 fh->fh_type == FC_TYPE_FCP) {
2514 /* Drop FCP data. We dont this in L2 path */
2518 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
2519 fh->fh_type == FC_TYPE_ELS) {
2520 switch (fc_frame_payload_op(fp)) {
2522 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
2523 /* drop non-FIP LOGO */
2531 if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
2532 /* Drop incoming ABTS */
2537 if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
2538 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2539 "FC frame d_id mismatch with MAC %pM.\n", dest_mac);
2544 if (qedf->ctlr.state) {
2545 if (!ether_addr_equal(mac, qedf->ctlr.dest_addr)) {
2546 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2547 "Wrong source address: mac:%pM dest_addr:%pM.\n",
2548 mac, qedf->ctlr.dest_addr);
2554 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
2557 * If the destination ID from the frame header does not match what we
2558 * have on record for lport and the search for a NPIV port came up
2559 * empty then this is not addressed to our port so simply drop it.
2561 if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
2562 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2563 "Dropping frame due to destination mismatch: lport->port_id=0x%x fh->d_id=0x%x.\n",
2564 lport->port_id, ntoh24(fh->fh_d_id));
2569 f_ctl = ntoh24(fh->fh_f_ctl);
2570 if ((fh->fh_type == FC_TYPE_BLS) && (f_ctl & FC_FC_SEQ_CTX) &&
2571 (f_ctl & FC_FC_EX_CTX)) {
2572 /* Drop incoming ABTS response that has both SEQ/EX CTX set */
2573 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2574 "Dropping ABTS response as both SEQ/EX CTX set.\n");
2580 * If a connection is uploading, drop incoming FCoE frames as there
2581 * is a small window where we could try to return a frame while libfc
2582 * is trying to clean things up.
2585 /* Get fcport associated with d_id if it exists */
2586 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
2588 if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
2590 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2591 "Connection uploading, dropping fp=%p.\n", fp);
2596 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
2597 "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
2598 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
2600 if (qedf_dump_frames)
2601 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
2602 1, skb->data, skb->len, false);
2603 fc_exch_recv(lport, fp);
2606 static void qedf_ll2_process_skb(struct work_struct *work)
2608 struct qedf_skb_work *skb_work =
2609 container_of(work, struct qedf_skb_work, work);
2610 struct qedf_ctx *qedf = skb_work->qedf;
2611 struct sk_buff *skb = skb_work->skb;
2615 QEDF_ERR(NULL, "qedf is NULL\n");
2619 eh = (struct ethhdr *)skb->data;
2621 /* Undo VLAN encapsulation */
2622 if (eh->h_proto == htons(ETH_P_8021Q)) {
2623 memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
2624 eh = skb_pull(skb, VLAN_HLEN);
2625 skb_reset_mac_header(skb);
2629 * Process either a FIP frame or FCoE frame based on the
2630 * protocol value. If it's not either just drop the
2633 if (eh->h_proto == htons(ETH_P_FIP)) {
2634 qedf_fip_recv(qedf, skb);
2636 } else if (eh->h_proto == htons(ETH_P_FCOE)) {
2637 __skb_pull(skb, ETH_HLEN);
2638 qedf_recv_frame(qedf, skb);
2650 static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
2653 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2654 struct qedf_skb_work *skb_work;
2656 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
2657 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2658 "Dropping frame as link state is down.\n");
2663 skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
2665 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
2666 "dropping frame.\n");
2671 INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
2672 skb_work->skb = skb;
2673 skb_work->qedf = qedf;
2674 queue_work(qedf->ll2_recv_wq, &skb_work->work);
2679 static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
2680 .rx_cb = qedf_ll2_rx,
2684 /* Main thread to process I/O completions */
2685 void qedf_fp_io_handler(struct work_struct *work)
2687 struct qedf_io_work *io_work =
2688 container_of(work, struct qedf_io_work, work);
2692 * Deferred part of unsolicited CQE sends
2695 comp_type = (io_work->cqe.cqe_data >>
2696 FCOE_CQE_CQE_TYPE_SHIFT) &
2697 FCOE_CQE_CQE_TYPE_MASK;
2698 if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
2700 fc_exch_recv(io_work->qedf->lport, io_work->fp);
2702 qedf_process_cqe(io_work->qedf, &io_work->cqe);
2707 static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
2708 struct qed_sb_info *sb_info, u16 sb_id)
2710 struct status_block_e4 *sb_virt;
2714 sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
2715 sizeof(struct status_block_e4), &sb_phys, GFP_KERNEL);
2718 QEDF_ERR(&qedf->dbg_ctx,
2719 "Status block allocation failed for id = %d.\n",
2724 ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
2725 sb_id, QED_SB_TYPE_STORAGE);
2728 QEDF_ERR(&qedf->dbg_ctx,
2729 "Status block initialization failed (0x%x) for id = %d.\n",
2737 static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
2739 if (sb_info->sb_virt)
2740 dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
2741 (void *)sb_info->sb_virt, sb_info->sb_phys);
2744 static void qedf_destroy_sb(struct qedf_ctx *qedf)
2747 struct qedf_fastpath *fp = NULL;
2749 for (id = 0; id < qedf->num_queues; id++) {
2750 fp = &(qedf->fp_array[id]);
2751 if (fp->sb_id == QEDF_SB_ID_NULL)
2753 qedf_free_sb(qedf, fp->sb_info);
2756 kfree(qedf->fp_array);
2759 static int qedf_prepare_sb(struct qedf_ctx *qedf)
2762 struct qedf_fastpath *fp;
2766 kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
2769 if (!qedf->fp_array) {
2770 QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
2775 for (id = 0; id < qedf->num_queues; id++) {
2776 fp = &(qedf->fp_array[id]);
2777 fp->sb_id = QEDF_SB_ID_NULL;
2778 fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
2780 QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
2781 "allocation failed.\n");
2784 ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
2786 QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
2787 "initialization failed.\n");
2792 fp->cq_num_entries =
2793 qedf->global_queues[id]->cq_mem_size /
2794 sizeof(struct fcoe_cqe);
2800 void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
2803 struct qedf_ioreq *io_req;
2804 struct qedf_rport *fcport;
2807 unsigned long flags;
2809 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2810 FCOE_CQE_CQE_TYPE_MASK;
2812 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2813 io_req = &qedf->cmd_mgr->cmds[xid];
2815 /* Completion not for a valid I/O anymore so just return */
2817 QEDF_ERR(&qedf->dbg_ctx,
2818 "io_req is NULL for xid=0x%x.\n", xid);
2822 fcport = io_req->fcport;
2824 if (fcport == NULL) {
2825 QEDF_ERR(&qedf->dbg_ctx,
2826 "fcport is NULL for xid=0x%x io_req=%p.\n",
2832 * Check that fcport is offloaded. If it isn't then the spinlock
2833 * isn't valid and shouldn't be taken. We should just return.
2835 if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
2836 QEDF_ERR(&qedf->dbg_ctx,
2837 "Session not offloaded yet, fcport = %p.\n", fcport);
2841 spin_lock_irqsave(&fcport->rport_lock, flags);
2842 io_comp_type = io_req->cmd_type;
2843 spin_unlock_irqrestore(&fcport->rport_lock, flags);
2845 switch (comp_type) {
2846 case FCOE_GOOD_COMPLETION_CQE_TYPE:
2847 atomic_inc(&fcport->free_sqes);
2848 switch (io_comp_type) {
2850 qedf_scsi_completion(qedf, cqe, io_req);
2853 qedf_process_els_compl(qedf, cqe, io_req);
2855 case QEDF_TASK_MGMT_CMD:
2856 qedf_process_tmf_compl(qedf, cqe, io_req);
2858 case QEDF_SEQ_CLEANUP:
2859 qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
2863 case FCOE_ERROR_DETECTION_CQE_TYPE:
2864 atomic_inc(&fcport->free_sqes);
2865 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2866 "Error detect CQE.\n");
2867 qedf_process_error_detect(qedf, cqe, io_req);
2869 case FCOE_EXCH_CLEANUP_CQE_TYPE:
2870 atomic_inc(&fcport->free_sqes);
2871 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2873 qedf_process_cleanup_compl(qedf, cqe, io_req);
2875 case FCOE_ABTS_CQE_TYPE:
2876 atomic_inc(&fcport->free_sqes);
2877 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2879 qedf_process_abts_compl(qedf, cqe, io_req);
2881 case FCOE_DUMMY_CQE_TYPE:
2882 atomic_inc(&fcport->free_sqes);
2883 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2886 case FCOE_LOCAL_COMP_CQE_TYPE:
2887 atomic_inc(&fcport->free_sqes);
2888 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2889 "Local completion CQE.\n");
2891 case FCOE_WARNING_CQE_TYPE:
2892 atomic_inc(&fcport->free_sqes);
2893 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2895 qedf_process_warning_compl(qedf, cqe, io_req);
2897 case MAX_FCOE_CQE_TYPE:
2898 atomic_inc(&fcport->free_sqes);
2899 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2903 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2909 static void qedf_free_bdq(struct qedf_ctx *qedf)
2913 if (qedf->bdq_pbl_list)
2914 dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
2915 qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
2918 dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
2919 qedf->bdq_pbl, qedf->bdq_pbl_dma);
2921 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2922 if (qedf->bdq[i].buf_addr) {
2923 dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
2924 qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
2929 static void qedf_free_global_queues(struct qedf_ctx *qedf)
2932 struct global_queue **gl = qedf->global_queues;
2934 for (i = 0; i < qedf->num_queues; i++) {
2939 dma_free_coherent(&qedf->pdev->dev,
2940 gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
2942 dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
2943 gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
2948 qedf_free_bdq(qedf);
2951 static int qedf_alloc_bdq(struct qedf_ctx *qedf)
2954 struct scsi_bd *pbl;
2958 /* Alloc dma memory for BDQ buffers */
2959 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2960 qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
2961 QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
2962 if (!qedf->bdq[i].buf_addr) {
2963 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
2969 /* Alloc dma memory for BDQ page buffer list */
2970 qedf->bdq_pbl_mem_size =
2971 QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
2972 qedf->bdq_pbl_mem_size =
2973 ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
2975 qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
2976 qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
2977 if (!qedf->bdq_pbl) {
2978 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
2982 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
2983 "BDQ PBL addr=0x%p dma=%pad\n",
2984 qedf->bdq_pbl, &qedf->bdq_pbl_dma);
2987 * Populate BDQ PBL with physical and virtual address of individual
2990 pbl = (struct scsi_bd *)qedf->bdq_pbl;
2991 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2992 pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
2993 pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
2994 pbl->opaque.fcoe_opaque.hi = 0;
2995 /* Opaque lo data is an index into the BDQ array */
2996 pbl->opaque.fcoe_opaque.lo = cpu_to_le32(i);
3000 /* Allocate list of PBL pages */
3001 qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
3003 &qedf->bdq_pbl_list_dma,
3005 if (!qedf->bdq_pbl_list) {
3006 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL pages.\n");
3011 * Now populate PBL list with pages that contain pointers to the
3012 * individual buffers.
3014 qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
3016 list = (u64 *)qedf->bdq_pbl_list;
3017 page = qedf->bdq_pbl_list_dma;
3018 for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
3019 *list = qedf->bdq_pbl_dma;
3021 page += QEDF_PAGE_SIZE;
3027 static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
3036 /* Allocate and map CQs, RQs */
3038 * Number of global queues (CQ / RQ). This should
3039 * be <= number of available MSIX vectors for the PF
3041 if (!qedf->num_queues) {
3042 QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
3047 * Make sure we allocated the PBL that will contain the physical
3048 * addresses of our queues
3050 if (!qedf->p_cpuq) {
3051 QEDF_ERR(&qedf->dbg_ctx, "p_cpuq is NULL.\n");
3055 qedf->global_queues = kzalloc((sizeof(struct global_queue *)
3056 * qedf->num_queues), GFP_KERNEL);
3057 if (!qedf->global_queues) {
3058 QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
3059 "queues array ptr memory\n");
3062 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3063 "qedf->global_queues=%p.\n", qedf->global_queues);
3065 /* Allocate DMA coherent buffers for BDQ */
3066 status = qedf_alloc_bdq(qedf);
3068 QEDF_ERR(&qedf->dbg_ctx, "Unable to allocate bdq.\n");
3069 goto mem_alloc_failure;
3072 /* Allocate a CQ and an associated PBL for each MSI-X vector */
3073 for (i = 0; i < qedf->num_queues; i++) {
3074 qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
3076 if (!qedf->global_queues[i]) {
3077 QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocate "
3078 "global queue %d.\n", i);
3080 goto mem_alloc_failure;
3083 qedf->global_queues[i]->cq_mem_size =
3084 FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3085 qedf->global_queues[i]->cq_mem_size =
3086 ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
3088 qedf->global_queues[i]->cq_pbl_size =
3089 (qedf->global_queues[i]->cq_mem_size /
3090 PAGE_SIZE) * sizeof(void *);
3091 qedf->global_queues[i]->cq_pbl_size =
3092 ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
3094 qedf->global_queues[i]->cq =
3095 dma_alloc_coherent(&qedf->pdev->dev,
3096 qedf->global_queues[i]->cq_mem_size,
3097 &qedf->global_queues[i]->cq_dma,
3100 if (!qedf->global_queues[i]->cq) {
3101 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq.\n");
3103 goto mem_alloc_failure;
3106 qedf->global_queues[i]->cq_pbl =
3107 dma_alloc_coherent(&qedf->pdev->dev,
3108 qedf->global_queues[i]->cq_pbl_size,
3109 &qedf->global_queues[i]->cq_pbl_dma,
3112 if (!qedf->global_queues[i]->cq_pbl) {
3113 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq PBL.\n");
3115 goto mem_alloc_failure;
3119 num_pages = qedf->global_queues[i]->cq_mem_size /
3121 page = qedf->global_queues[i]->cq_dma;
3122 pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
3124 while (num_pages--) {
3125 *pbl = U64_LO(page);
3127 *pbl = U64_HI(page);
3129 page += QEDF_PAGE_SIZE;
3131 /* Set the initial consumer index for cq */
3132 qedf->global_queues[i]->cq_cons_idx = 0;
3135 list = (u32 *)qedf->p_cpuq;
3138 * The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer,
3139 * CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points
3140 * to the physical address which contains an array of pointers to
3141 * the physical addresses of the specific queue pages.
3143 for (i = 0; i < qedf->num_queues; i++) {
3144 *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
3146 *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
3157 qedf_free_global_queues(qedf);
3161 static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
3163 u8 sq_num_pbl_pages;
3170 * The number of completion queues/fastpath interrupts/status blocks
3171 * we allocation is the minimum off:
3174 * Number allocated by qed for our PCI function
3176 qedf->num_queues = MIN_NUM_CPUS_MSIX(qedf);
3178 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
3181 qedf->p_cpuq = dma_alloc_coherent(&qedf->pdev->dev,
3182 qedf->num_queues * sizeof(struct qedf_glbl_q_params),
3183 &qedf->hw_p_cpuq, GFP_KERNEL);
3185 if (!qedf->p_cpuq) {
3186 QEDF_ERR(&(qedf->dbg_ctx), "dma_alloc_coherent failed.\n");
3190 rval = qedf_alloc_global_queues(qedf);
3192 QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
3197 /* Calculate SQ PBL size in the same manner as in qedf_sq_alloc() */
3198 sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
3199 sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
3200 sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
3202 /* Calculate CQ num entries */
3203 cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3204 cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
3205 cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
3207 memset(&(qedf->pf_params), 0, sizeof(qedf->pf_params));
3209 /* Setup the value for fcoe PF */
3210 qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
3211 qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
3212 qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
3213 (u64)qedf->hw_p_cpuq;
3214 qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
3216 qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
3218 qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
3219 qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
3221 /* log_page_size: 12 for 4KB pages */
3222 qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
3224 qedf->pf_params.fcoe_pf_params.mtu = 9000;
3225 qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
3226 qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
3228 /* BDQ address and size */
3229 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
3230 qedf->bdq_pbl_list_dma;
3231 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
3232 qedf->bdq_pbl_list_num_entries;
3233 qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
3235 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3236 "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
3238 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
3239 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
3241 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3242 "cq_num_entries=%d.\n",
3243 qedf->pf_params.fcoe_pf_params.cq_num_entries);
3248 /* Free DMA coherent memory for array of queue pointers we pass to qed */
3249 static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
3254 size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
3255 dma_free_coherent(&qedf->pdev->dev, size, qedf->p_cpuq,
3259 qedf_free_global_queues(qedf);
3261 kfree(qedf->global_queues);
3265 * PCI driver functions
3268 static const struct pci_device_id qedf_pci_tbl[] = {
3269 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
3270 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
3273 MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
3275 static struct pci_driver qedf_pci_driver = {
3276 .name = QEDF_MODULE_NAME,
3277 .id_table = qedf_pci_tbl,
3278 .probe = qedf_probe,
3279 .remove = qedf_remove,
3280 .shutdown = qedf_shutdown,
3281 .suspend = qedf_suspend,
3284 static int __qedf_probe(struct pci_dev *pdev, int mode)
3287 struct fc_lport *lport;
3288 struct qedf_ctx *qedf = NULL;
3289 struct Scsi_Host *host;
3291 struct qed_ll2_params params;
3293 struct qed_link_params link_params;
3295 void *task_start, *task_end;
3296 struct qed_slowpath_params slowpath_params;
3297 struct qed_probe_params qed_params;
3301 * When doing error recovery we didn't reap the lport so don't try
3305 if (mode == QEDF_MODE_RECOVERY)
3308 if (mode != QEDF_MODE_RECOVERY) {
3309 lport = libfc_host_alloc(&qedf_host_template,
3310 sizeof(struct qedf_ctx));
3313 QEDF_ERR(NULL, "Could not allocate lport.\n");
3318 fc_disc_init(lport);
3320 /* Initialize qedf_ctx */
3321 qedf = lport_priv(lport);
3322 set_bit(QEDF_PROBING, &qedf->flags);
3323 qedf->lport = lport;
3324 qedf->ctlr.lp = lport;
3326 qedf->dbg_ctx.pdev = pdev;
3327 qedf->dbg_ctx.host_no = lport->host->host_no;
3328 spin_lock_init(&qedf->hba_lock);
3329 INIT_LIST_HEAD(&qedf->fcports);
3330 qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
3331 atomic_set(&qedf->num_offloads, 0);
3332 qedf->stop_io_on_error = false;
3333 pci_set_drvdata(pdev, qedf);
3334 init_completion(&qedf->fipvlan_compl);
3335 mutex_init(&qedf->stats_mutex);
3336 mutex_init(&qedf->flush_mutex);
3337 qedf->flogi_pending = 0;
3339 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
3340 "QLogic FastLinQ FCoE Module qedf %s, "
3341 "FW %d.%d.%d.%d\n", QEDF_VERSION,
3342 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
3343 FW_ENGINEERING_VERSION);
3345 /* Init pointers during recovery */
3346 qedf = pci_get_drvdata(pdev);
3347 set_bit(QEDF_PROBING, &qedf->flags);
3348 lport = qedf->lport;
3351 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe started.\n");
3355 /* Allocate mempool for qedf_io_work structs */
3356 qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
3357 qedf_io_work_cache);
3358 if (qedf->io_mempool == NULL) {
3359 QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
3362 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
3365 sprintf(host_buf, "qedf_%u_link",
3366 qedf->lport->host->host_no);
3367 qedf->link_update_wq = create_workqueue(host_buf);
3368 INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
3369 INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
3370 INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump);
3371 INIT_DELAYED_WORK(&qedf->stag_work, qedf_stag_change_work);
3372 qedf->fipvlan_retries = qedf_fipvlan_retries;
3373 /* Set a default prio in case DCBX doesn't converge */
3374 if (qedf_default_prio > -1) {
3376 * This is the case where we pass a modparam in so we want to
3377 * honor it even if dcbx doesn't converge.
3379 qedf->prio = qedf_default_prio;
3381 qedf->prio = QEDF_DEFAULT_PRIO;
3384 * Common probe. Takes care of basic hardware init and pci_*
3387 memset(&qed_params, 0, sizeof(qed_params));
3388 qed_params.protocol = QED_PROTOCOL_FCOE;
3389 qed_params.dp_module = qedf_dp_module;
3390 qed_params.dp_level = qedf_dp_level;
3391 qed_params.is_vf = is_vf;
3392 qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
3394 if ((mode == QEDF_MODE_RECOVERY) && retry_cnt) {
3395 QEDF_ERR(&qedf->dbg_ctx,
3396 "Retry %d initialize hardware\n", retry_cnt);
3400 QEDF_ERR(&qedf->dbg_ctx, "common probe failed.\n");
3405 /* Learn information crucial for qedf to progress */
3406 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3408 QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
3412 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
3413 "dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
3414 qedf->dev_info.common.num_hwfns,
3415 qed_ops->common->get_affin_hwfn_idx(qedf->cdev));
3417 /* queue allocation code should come here
3420 * status block allocation
3421 * interrupt registration (to get min number of queues)
3423 * qed_sp_fcoe_func_start
3425 rc = qedf_set_fcoe_pf_param(qedf);
3427 QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
3430 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3432 /* Learn information crucial for qedf to progress */
3433 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3435 QEDF_ERR(&qedf->dbg_ctx, "Failed to fill dev info.\n");
3439 /* Record BDQ producer doorbell addresses */
3440 qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
3441 qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
3442 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3443 "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
3444 qedf->bdq_secondary_prod);
3446 qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
3448 rc = qedf_prepare_sb(qedf);
3451 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3455 /* Start the Slowpath-process */
3456 slowpath_params.int_mode = QED_INT_MODE_MSIX;
3457 slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
3458 slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
3459 slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
3460 slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
3461 strncpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
3462 rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
3464 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3469 * update_pf_params needs to be called before and after slowpath
3472 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3474 /* Setup interrupts */
3475 rc = qedf_setup_int(qedf);
3477 QEDF_ERR(&qedf->dbg_ctx, "Setup interrupts failed.\n");
3481 rc = qed_ops->start(qedf->cdev, &qedf->tasks);
3483 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
3486 task_start = qedf_get_task_mem(&qedf->tasks, 0);
3487 task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
3488 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
3489 "end=%p block_size=%u.\n", task_start, task_end,
3493 * We need to write the number of BDs in the BDQ we've preallocated so
3494 * the f/w will do a prefetch and we'll get an unsolicited CQE when a
3497 qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
3498 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3499 "Writing %d to primary and secondary BDQ doorbell registers.\n",
3500 qedf->bdq_prod_idx);
3501 writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
3502 readw(qedf->bdq_primary_prod);
3503 writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
3504 readw(qedf->bdq_secondary_prod);
3506 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3508 /* Now that the dev_info struct has been filled in set the MAC
3511 ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
3512 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
3516 * Set the WWNN and WWPN in the following way:
3518 * If the info we get from qed is non-zero then use that to set the
3519 * WWPN and WWNN. Otherwise fall back to use fcoe_wwn_from_mac() based
3520 * on the MAC address.
3522 if (qedf->dev_info.wwnn != 0 && qedf->dev_info.wwpn != 0) {
3523 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3524 "Setting WWPN and WWNN from qed dev_info.\n");
3525 qedf->wwnn = qedf->dev_info.wwnn;
3526 qedf->wwpn = qedf->dev_info.wwpn;
3528 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3529 "Setting WWPN and WWNN using fcoe_wwn_from_mac().\n");
3530 qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
3531 qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
3533 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
3534 "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
3536 sprintf(host_buf, "host_%d", host->host_no);
3537 qed_ops->common->set_name(qedf->cdev, host_buf);
3539 /* Allocate cmd mgr */
3540 qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
3541 if (!qedf->cmd_mgr) {
3542 QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
3547 if (mode != QEDF_MODE_RECOVERY) {
3548 host->transportt = qedf_fc_transport_template;
3549 host->max_lun = qedf_max_lun;
3550 host->max_cmd_len = QEDF_MAX_CDB_LEN;
3551 host->can_queue = FCOE_PARAMS_NUM_TASKS;
3552 rc = scsi_add_host(host, &pdev->dev);
3554 QEDF_WARN(&qedf->dbg_ctx,
3555 "Error adding Scsi_Host rc=0x%x.\n", rc);
3560 memset(¶ms, 0, sizeof(params));
3561 params.mtu = QEDF_LL2_BUF_SIZE;
3562 ether_addr_copy(params.ll2_mac_address, qedf->mac);
3564 /* Start LL2 processing thread */
3565 snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
3567 create_workqueue(host_buf);
3568 if (!qedf->ll2_recv_wq) {
3569 QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
3574 #ifdef CONFIG_DEBUG_FS
3575 qedf_dbg_host_init(&(qedf->dbg_ctx), qedf_debugfs_ops,
3580 qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
3581 rc = qed_ops->ll2->start(qedf->cdev, ¶ms);
3583 QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
3586 set_bit(QEDF_LL2_STARTED, &qedf->flags);
3588 /* Set initial FIP/FCoE VLAN to NULL */
3592 * No need to setup fcoe_ctlr or fc_lport objects during recovery since
3593 * they were not reaped during the unload process.
3595 if (mode != QEDF_MODE_RECOVERY) {
3596 /* Setup imbedded fcoe controller */
3597 qedf_fcoe_ctlr_setup(qedf);
3600 rc = qedf_lport_setup(qedf);
3602 QEDF_ERR(&(qedf->dbg_ctx),
3603 "qedf_lport_setup failed.\n");
3608 sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
3609 qedf->timer_work_queue =
3610 create_workqueue(host_buf);
3611 if (!qedf->timer_work_queue) {
3612 QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
3618 /* DPC workqueue is not reaped during recovery unload */
3619 if (mode != QEDF_MODE_RECOVERY) {
3620 sprintf(host_buf, "qedf_%u_dpc",
3621 qedf->lport->host->host_no);
3622 qedf->dpc_wq = create_workqueue(host_buf);
3624 INIT_DELAYED_WORK(&qedf->recovery_work, qedf_recovery_handler);
3627 * GRC dump and sysfs parameters are not reaped during the recovery
3630 if (mode != QEDF_MODE_RECOVERY) {
3631 qedf->grcdump_size =
3632 qed_ops->common->dbg_all_data_size(qedf->cdev);
3633 if (qedf->grcdump_size) {
3634 rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
3635 qedf->grcdump_size);
3637 QEDF_ERR(&(qedf->dbg_ctx),
3638 "GRC Dump buffer alloc failed.\n");
3639 qedf->grcdump = NULL;
3642 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3643 "grcdump: addr=%p, size=%u.\n",
3644 qedf->grcdump, qedf->grcdump_size);
3646 qedf_create_sysfs_ctx_attr(qedf);
3648 /* Initialize I/O tracing for this adapter */
3649 spin_lock_init(&qedf->io_trace_lock);
3650 qedf->io_trace_idx = 0;
3653 init_completion(&qedf->flogi_compl);
3655 status = qed_ops->common->update_drv_state(qedf->cdev, true);
3657 QEDF_ERR(&(qedf->dbg_ctx),
3658 "Failed to send drv state to MFW.\n");
3660 memset(&link_params, 0, sizeof(struct qed_link_params));
3661 link_params.link_up = true;
3662 status = qed_ops->common->set_link(qedf->cdev, &link_params);
3664 QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
3666 /* Start/restart discovery */
3667 if (mode == QEDF_MODE_RECOVERY)
3668 fcoe_ctlr_link_up(&qedf->ctlr);
3670 fc_fabric_login(lport);
3672 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
3674 clear_bit(QEDF_PROBING, &qedf->flags);
3680 if (qedf->ll2_recv_wq)
3681 destroy_workqueue(qedf->ll2_recv_wq);
3682 fc_remove_host(qedf->lport->host);
3683 scsi_remove_host(qedf->lport->host);
3684 #ifdef CONFIG_DEBUG_FS
3685 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3688 qedf_cmd_mgr_free(qedf->cmd_mgr);
3690 qed_ops->stop(qedf->cdev);
3692 qedf_free_fcoe_pf_param(qedf);
3693 qedf_sync_free_irqs(qedf);
3695 qed_ops->common->slowpath_stop(qedf->cdev);
3697 qed_ops->common->remove(qedf->cdev);
3699 scsi_host_put(lport->host);
3704 static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
3706 return __qedf_probe(pdev, QEDF_MODE_NORMAL);
3709 static void __qedf_remove(struct pci_dev *pdev, int mode)
3711 struct qedf_ctx *qedf;
3715 QEDF_ERR(NULL, "pdev is NULL.\n");
3719 qedf = pci_get_drvdata(pdev);
3722 * Prevent race where we're in board disable work and then try to
3725 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
3726 QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
3730 if (mode != QEDF_MODE_RECOVERY)
3731 set_bit(QEDF_UNLOADING, &qedf->flags);
3733 /* Logoff the fabric to upload all connections */
3734 if (mode == QEDF_MODE_RECOVERY)
3735 fcoe_ctlr_link_down(&qedf->ctlr);
3737 fc_fabric_logoff(qedf->lport);
3739 if (qedf_wait_for_upload(qedf) == false)
3740 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
3742 #ifdef CONFIG_DEBUG_FS
3743 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3746 /* Stop any link update handling */
3747 cancel_delayed_work_sync(&qedf->link_update);
3748 destroy_workqueue(qedf->link_update_wq);
3749 qedf->link_update_wq = NULL;
3751 if (qedf->timer_work_queue)
3752 destroy_workqueue(qedf->timer_work_queue);
3755 clear_bit(QEDF_LL2_STARTED, &qedf->flags);
3756 qed_ops->ll2->stop(qedf->cdev);
3757 if (qedf->ll2_recv_wq)
3758 destroy_workqueue(qedf->ll2_recv_wq);
3761 qedf_sync_free_irqs(qedf);
3762 qedf_destroy_sb(qedf);
3765 * During recovery don't destroy OS constructs that represent the
3768 if (mode != QEDF_MODE_RECOVERY) {
3769 qedf_free_grc_dump_buf(&qedf->grcdump);
3770 qedf_remove_sysfs_ctx_attr(qedf);
3772 /* Remove all SCSI/libfc/libfcoe structures */
3773 fcoe_ctlr_destroy(&qedf->ctlr);
3774 fc_lport_destroy(qedf->lport);
3775 fc_remove_host(qedf->lport->host);
3776 scsi_remove_host(qedf->lport->host);
3779 qedf_cmd_mgr_free(qedf->cmd_mgr);
3781 if (mode != QEDF_MODE_RECOVERY) {
3782 fc_exch_mgr_free(qedf->lport);
3783 fc_lport_free_stats(qedf->lport);
3785 /* Wait for all vports to be reaped */
3786 qedf_wait_for_vport_destroy(qedf);
3790 * Now that all connections have been uploaded we can stop the
3791 * rest of the qed operations
3793 qed_ops->stop(qedf->cdev);
3795 if (mode != QEDF_MODE_RECOVERY) {
3797 /* Stop general DPC handling */
3798 destroy_workqueue(qedf->dpc_wq);
3799 qedf->dpc_wq = NULL;
3803 /* Final shutdown for the board */
3804 qedf_free_fcoe_pf_param(qedf);
3805 if (mode != QEDF_MODE_RECOVERY) {
3806 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3807 pci_set_drvdata(pdev, NULL);
3810 rc = qed_ops->common->update_drv_state(qedf->cdev, false);
3812 QEDF_ERR(&(qedf->dbg_ctx),
3813 "Failed to send drv state to MFW.\n");
3815 qed_ops->common->slowpath_stop(qedf->cdev);
3816 qed_ops->common->remove(qedf->cdev);
3818 mempool_destroy(qedf->io_mempool);
3820 /* Only reap the Scsi_host on a real removal */
3821 if (mode != QEDF_MODE_RECOVERY)
3822 scsi_host_put(qedf->lport->host);
3825 static void qedf_remove(struct pci_dev *pdev)
3827 /* Check to make sure this function wasn't already disabled */
3828 if (!atomic_read(&pdev->enable_cnt))
3831 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3834 void qedf_wq_grcdump(struct work_struct *work)
3836 struct qedf_ctx *qedf =
3837 container_of(work, struct qedf_ctx, grcdump_work.work);
3839 QEDF_ERR(&(qedf->dbg_ctx), "Collecting GRC dump.\n");
3840 qedf_capture_grc_dump(qedf);
3843 void qedf_schedule_hw_err_handler(void *dev, enum qed_hw_err_type err_type)
3845 struct qedf_ctx *qedf = dev;
3847 QEDF_ERR(&(qedf->dbg_ctx),
3848 "Hardware error handler scheduled, event=%d.\n",
3851 if (test_bit(QEDF_IN_RECOVERY, &qedf->flags)) {
3852 QEDF_ERR(&(qedf->dbg_ctx),
3853 "Already in recovery, not scheduling board disable work.\n");
3858 case QED_HW_ERR_FAN_FAIL:
3859 schedule_delayed_work(&qedf->board_disable_work, 0);
3861 case QED_HW_ERR_MFW_RESP_FAIL:
3862 case QED_HW_ERR_HW_ATTN:
3863 case QED_HW_ERR_DMAE_FAIL:
3864 case QED_HW_ERR_FW_ASSERT:
3865 /* Prevent HW attentions from being reasserted */
3866 qed_ops->common->attn_clr_enable(qedf->cdev, true);
3868 case QED_HW_ERR_RAMROD_FAIL:
3869 /* Prevent HW attentions from being reasserted */
3870 qed_ops->common->attn_clr_enable(qedf->cdev, true);
3872 if (qedf_enable_recovery)
3873 qed_ops->common->recovery_process(qedf->cdev);
3882 * Protocol TLV handler
3884 void qedf_get_protocol_tlv_data(void *dev, void *data)
3886 struct qedf_ctx *qedf = dev;
3887 struct qed_mfw_tlv_fcoe *fcoe = data;
3888 struct fc_lport *lport;
3889 struct Scsi_Host *host;
3890 struct fc_host_attrs *fc_host;
3891 struct fc_host_statistics *hst;
3894 QEDF_ERR(NULL, "qedf is null.\n");
3898 if (test_bit(QEDF_PROBING, &qedf->flags)) {
3899 QEDF_ERR(&qedf->dbg_ctx, "Function is still probing.\n");
3903 lport = qedf->lport;
3905 fc_host = shost_to_fc_host(host);
3907 /* Force a refresh of the fc_host stats including offload stats */
3908 hst = qedf_fc_get_host_stats(host);
3910 fcoe->qos_pri_set = true;
3911 fcoe->qos_pri = 3; /* Hard coded to 3 in driver */
3913 fcoe->ra_tov_set = true;
3914 fcoe->ra_tov = lport->r_a_tov;
3916 fcoe->ed_tov_set = true;
3917 fcoe->ed_tov = lport->e_d_tov;
3919 fcoe->npiv_state_set = true;
3920 fcoe->npiv_state = 1; /* NPIV always enabled */
3922 fcoe->num_npiv_ids_set = true;
3923 fcoe->num_npiv_ids = fc_host->npiv_vports_inuse;
3925 /* Certain attributes we only want to set if we've selected an FCF */
3926 if (qedf->ctlr.sel_fcf) {
3927 fcoe->switch_name_set = true;
3928 u64_to_wwn(qedf->ctlr.sel_fcf->switch_name, fcoe->switch_name);
3931 fcoe->port_state_set = true;
3932 /* For qedf we're either link down or fabric attach */
3934 fcoe->port_state = QED_MFW_TLV_PORT_STATE_FABRIC;
3936 fcoe->port_state = QED_MFW_TLV_PORT_STATE_OFFLINE;
3938 fcoe->link_failures_set = true;
3939 fcoe->link_failures = (u16)hst->link_failure_count;
3941 fcoe->fcoe_txq_depth_set = true;
3942 fcoe->fcoe_rxq_depth_set = true;
3943 fcoe->fcoe_rxq_depth = FCOE_PARAMS_NUM_TASKS;
3944 fcoe->fcoe_txq_depth = FCOE_PARAMS_NUM_TASKS;
3946 fcoe->fcoe_rx_frames_set = true;
3947 fcoe->fcoe_rx_frames = hst->rx_frames;
3949 fcoe->fcoe_tx_frames_set = true;
3950 fcoe->fcoe_tx_frames = hst->tx_frames;
3952 fcoe->fcoe_rx_bytes_set = true;
3953 fcoe->fcoe_rx_bytes = hst->fcp_input_megabytes * 1000000;
3955 fcoe->fcoe_tx_bytes_set = true;
3956 fcoe->fcoe_tx_bytes = hst->fcp_output_megabytes * 1000000;
3958 fcoe->crc_count_set = true;
3959 fcoe->crc_count = hst->invalid_crc_count;
3961 fcoe->tx_abts_set = true;
3962 fcoe->tx_abts = hst->fcp_packet_aborts;
3964 fcoe->tx_lun_rst_set = true;
3965 fcoe->tx_lun_rst = qedf->lun_resets;
3967 fcoe->abort_task_sets_set = true;
3968 fcoe->abort_task_sets = qedf->packet_aborts;
3970 fcoe->scsi_busy_set = true;
3971 fcoe->scsi_busy = qedf->busy;
3973 fcoe->scsi_tsk_full_set = true;
3974 fcoe->scsi_tsk_full = qedf->task_set_fulls;
3977 /* Deferred work function to perform soft context reset on STAG change */
3978 void qedf_stag_change_work(struct work_struct *work)
3980 struct qedf_ctx *qedf =
3981 container_of(work, struct qedf_ctx, stag_work.work);
3984 QEDF_ERR(NULL, "qedf is NULL");
3987 QEDF_ERR(&qedf->dbg_ctx, "Performing software context reset.\n");
3988 qedf_ctx_soft_reset(qedf->lport);
3991 static void qedf_shutdown(struct pci_dev *pdev)
3993 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3996 static int qedf_suspend(struct pci_dev *pdev, pm_message_t state)
3998 struct qedf_ctx *qedf;
4001 QEDF_ERR(NULL, "pdev is NULL.\n");
4005 qedf = pci_get_drvdata(pdev);
4007 QEDF_ERR(&qedf->dbg_ctx, "%s: Device does not support suspend operation\n", __func__);
4013 * Recovery handler code
4015 static void qedf_schedule_recovery_handler(void *dev)
4017 struct qedf_ctx *qedf = dev;
4019 QEDF_ERR(&qedf->dbg_ctx, "Recovery handler scheduled.\n");
4020 schedule_delayed_work(&qedf->recovery_work, 0);
4023 static void qedf_recovery_handler(struct work_struct *work)
4025 struct qedf_ctx *qedf =
4026 container_of(work, struct qedf_ctx, recovery_work.work);
4028 if (test_and_set_bit(QEDF_IN_RECOVERY, &qedf->flags))
4032 * Call common_ops->recovery_prolog to allow the MFW to quiesce
4033 * any PCI transactions.
4035 qed_ops->common->recovery_prolog(qedf->cdev);
4037 QEDF_ERR(&qedf->dbg_ctx, "Recovery work start.\n");
4038 __qedf_remove(qedf->pdev, QEDF_MODE_RECOVERY);
4040 * Reset link and dcbx to down state since we will not get a link down
4041 * event from the MFW but calling __qedf_remove will essentially be a
4044 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
4045 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
4046 __qedf_probe(qedf->pdev, QEDF_MODE_RECOVERY);
4047 clear_bit(QEDF_IN_RECOVERY, &qedf->flags);
4048 QEDF_ERR(&qedf->dbg_ctx, "Recovery work complete.\n");
4051 /* Generic TLV data callback */
4052 void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
4054 struct qedf_ctx *qedf;
4057 QEDF_INFO(NULL, QEDF_LOG_EVT,
4058 "dev is NULL so ignoring get_generic_tlv_data request.\n");
4061 qedf = (struct qedf_ctx *)dev;
4063 memset(data, 0, sizeof(struct qed_generic_tlvs));
4064 ether_addr_copy(data->mac[0], qedf->mac);
4068 * Module Init/Remove
4071 static int __init qedf_init(void)
4075 /* If debug=1 passed, set the default log mask */
4076 if (qedf_debug == QEDF_LOG_DEFAULT)
4077 qedf_debug = QEDF_DEFAULT_LOG_MASK;
4080 * Check that default prio for FIP/FCoE traffic is between 0..7 if a
4081 * value has been set
4083 if (qedf_default_prio > -1)
4084 if (qedf_default_prio > 7) {
4085 qedf_default_prio = QEDF_DEFAULT_PRIO;
4086 QEDF_ERR(NULL, "FCoE/FIP priority out of range, resetting to %d.\n",
4090 /* Print driver banner */
4091 QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
4094 /* Create kmem_cache for qedf_io_work structs */
4095 qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
4096 sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
4097 if (qedf_io_work_cache == NULL) {
4098 QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
4101 QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
4102 qedf_io_work_cache);
4104 qed_ops = qed_get_fcoe_ops();
4106 QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
4110 #ifdef CONFIG_DEBUG_FS
4111 qedf_dbg_init("qedf");
4114 qedf_fc_transport_template =
4115 fc_attach_transport(&qedf_fc_transport_fn);
4116 if (!qedf_fc_transport_template) {
4117 QEDF_ERR(NULL, "Could not register with FC transport\n");
4121 qedf_fc_vport_transport_template =
4122 fc_attach_transport(&qedf_fc_vport_transport_fn);
4123 if (!qedf_fc_vport_transport_template) {
4124 QEDF_ERR(NULL, "Could not register vport template with FC "
4129 qedf_io_wq = create_workqueue("qedf_io_wq");
4131 QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
4135 qedf_cb_ops.get_login_failures = qedf_get_login_failures;
4137 ret = pci_register_driver(&qedf_pci_driver);
4139 QEDF_ERR(NULL, "Failed to register driver\n");
4146 destroy_workqueue(qedf_io_wq);
4148 fc_release_transport(qedf_fc_vport_transport_template);
4150 fc_release_transport(qedf_fc_transport_template);
4152 #ifdef CONFIG_DEBUG_FS
4160 static void __exit qedf_cleanup(void)
4162 pci_unregister_driver(&qedf_pci_driver);
4164 destroy_workqueue(qedf_io_wq);
4166 fc_release_transport(qedf_fc_vport_transport_template);
4167 fc_release_transport(qedf_fc_transport_template);
4168 #ifdef CONFIG_DEBUG_FS
4173 kmem_cache_destroy(qedf_io_work_cache);
4176 MODULE_LICENSE("GPL");
4177 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx FCoE Module");
4178 MODULE_AUTHOR("QLogic Corporation");
4179 MODULE_VERSION(QEDF_VERSION);
4180 module_init(qedf_init);
4181 module_exit(qedf_cleanup);