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);
36 * Driver module parameters.
38 static unsigned int qedf_dev_loss_tmo = 60;
39 module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
40 MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
41 "remote ports (default 60)");
43 uint qedf_debug = QEDF_LOG_INFO;
44 module_param_named(debug, qedf_debug, uint, S_IRUGO|S_IWUSR);
45 MODULE_PARM_DESC(debug, " Debug mask. Pass '1' to enable default debugging"
48 static uint qedf_fipvlan_retries = 60;
49 module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
50 MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
51 "before giving up (default 60)");
53 static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
54 module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
55 MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
58 static int qedf_default_prio = -1;
59 module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
60 MODULE_PARM_DESC(default_prio, " Override 802.1q priority for FIP and FCoE"
61 " traffic (value between 0 and 7, default 3).");
63 uint qedf_dump_frames;
64 module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
65 MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
68 static uint qedf_queue_depth;
69 module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
70 MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
71 "by the qedf driver. Default is 0 (use OS default).");
74 module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
75 MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
76 "into trace buffer. (default off).");
78 static uint qedf_max_lun = MAX_FIBRE_LUNS;
79 module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
80 MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
81 "supports. (default 0xffffffff)");
83 uint qedf_link_down_tmo;
84 module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
85 MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
86 "link is down by N seconds.");
88 bool qedf_retry_delay;
89 module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
90 MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
91 "delay handling (default off).");
93 static bool qedf_dcbx_no_wait;
94 module_param_named(dcbx_no_wait, qedf_dcbx_no_wait, bool, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(dcbx_no_wait, " Do not wait for DCBX convergence to start "
96 "sending FIP VLAN requests on link up (Default: off).");
98 static uint qedf_dp_module;
99 module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
100 MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
101 "qed module during probe.");
103 static uint qedf_dp_level = QED_LEVEL_NOTICE;
104 module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
105 MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
106 "during probe (0-3: 0 more verbose).");
108 static bool qedf_enable_recovery = true;
109 module_param_named(enable_recovery, qedf_enable_recovery,
110 bool, S_IRUGO | S_IWUSR);
111 MODULE_PARM_DESC(enable_recovery, "Enable/disable recovery on driver/firmware "
112 "interface level errors 0 = Disabled, 1 = Enabled (Default: 1).");
114 struct workqueue_struct *qedf_io_wq;
116 static struct fcoe_percpu_s qedf_global;
117 static DEFINE_SPINLOCK(qedf_global_lock);
119 static struct kmem_cache *qedf_io_work_cache;
121 void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
125 vlan_id_tmp = vlan_id | (qedf->prio << VLAN_PRIO_SHIFT);
126 qedf->vlan_id = vlan_id_tmp;
127 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
128 "Setting vlan_id=0x%04x prio=%d.\n",
129 vlan_id_tmp, qedf->prio);
132 /* Returns true if we have a valid vlan, false otherwise */
133 static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
136 while (qedf->fipvlan_retries--) {
137 /* This is to catch if link goes down during fipvlan retries */
138 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
139 QEDF_ERR(&qedf->dbg_ctx, "Link not up.\n");
143 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
144 QEDF_ERR(&qedf->dbg_ctx, "Driver unloading.\n");
148 if (qedf->vlan_id > 0) {
149 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
150 "vlan = 0x%x already set, calling ctlr_link_up.\n",
152 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
153 fcoe_ctlr_link_up(&qedf->ctlr);
157 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
158 "Retry %d.\n", qedf->fipvlan_retries);
159 init_completion(&qedf->fipvlan_compl);
160 qedf_fcoe_send_vlan_req(qedf);
161 wait_for_completion_timeout(&qedf->fipvlan_compl, 1 * HZ);
167 static void qedf_handle_link_update(struct work_struct *work)
169 struct qedf_ctx *qedf =
170 container_of(work, struct qedf_ctx, link_update.work);
173 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Entered. link_state=%d.\n",
174 atomic_read(&qedf->link_state));
176 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
177 rc = qedf_initiate_fipvlan_req(qedf);
181 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
182 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
183 "Link is down, resetting vlan_id.\n");
189 * If we get here then we never received a repsonse to our
190 * fip vlan request so set the vlan_id to the default and
191 * tell FCoE that the link is up
193 QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
194 "response, falling back to default VLAN %d.\n",
196 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
199 * Zero out data_src_addr so we'll update it with the new
202 eth_zero_addr(qedf->data_src_addr);
203 fcoe_ctlr_link_up(&qedf->ctlr);
204 } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
206 * If we hit here and link_down_tmo_valid is still 1 it means
207 * that link_down_tmo timed out so set it to 0 to make sure any
208 * other readers have accurate state.
210 atomic_set(&qedf->link_down_tmo_valid, 0);
211 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
212 "Calling fcoe_ctlr_link_down().\n");
213 fcoe_ctlr_link_down(&qedf->ctlr);
214 if (qedf_wait_for_upload(qedf) == false)
215 QEDF_ERR(&qedf->dbg_ctx,
216 "Could not upload all sessions.\n");
217 /* Reset the number of FIP VLAN retries */
218 qedf->fipvlan_retries = qedf_fipvlan_retries;
222 #define QEDF_FCOE_MAC_METHOD_GRANGED_MAC 1
223 #define QEDF_FCOE_MAC_METHOD_FCF_MAP 2
224 #define QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC 3
225 static void qedf_set_data_src_addr(struct qedf_ctx *qedf, struct fc_frame *fp)
228 struct fc_frame_header *fh = fc_frame_header_get(fp);
232 /* Get granted MAC address from FIP FLOGI payload */
233 granted_mac = fr_cb(fp)->granted_mac;
236 * We set the source MAC for FCoE traffic based on the Granted MAC
237 * address from the switch.
239 * If granted_mac is non-zero, we used that.
240 * If the granted_mac is zeroed out, created the FCoE MAC based on
241 * the sel_fcf->fc_map and the d_id fo the FLOGI frame.
242 * If sel_fcf->fc_map is 0 then we use the default FCF-MAC plus the
243 * d_id of the FLOGI frame.
245 if (!is_zero_ether_addr(granted_mac)) {
246 ether_addr_copy(qedf->data_src_addr, granted_mac);
247 method = QEDF_FCOE_MAC_METHOD_GRANGED_MAC;
248 } else if (qedf->ctlr.sel_fcf->fc_map != 0) {
249 hton24(fc_map, qedf->ctlr.sel_fcf->fc_map);
250 qedf->data_src_addr[0] = fc_map[0];
251 qedf->data_src_addr[1] = fc_map[1];
252 qedf->data_src_addr[2] = fc_map[2];
253 qedf->data_src_addr[3] = fh->fh_d_id[0];
254 qedf->data_src_addr[4] = fh->fh_d_id[1];
255 qedf->data_src_addr[5] = fh->fh_d_id[2];
256 method = QEDF_FCOE_MAC_METHOD_FCF_MAP;
258 fc_fcoe_set_mac(qedf->data_src_addr, fh->fh_d_id);
259 method = QEDF_FCOE_MAC_METHOD_FCOE_SET_MAC;
262 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
263 "QEDF data_src_mac=%pM method=%d.\n", qedf->data_src_addr, method);
266 static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
269 struct fc_exch *exch = fc_seq_exch(seq);
270 struct fc_lport *lport = exch->lp;
271 struct qedf_ctx *qedf = lport_priv(lport);
274 QEDF_ERR(NULL, "qedf is NULL.\n");
279 * If ERR_PTR is set then don't try to stat anything as it will cause
280 * a crash when we access fp.
283 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
284 "fp has IS_ERR() set.\n");
288 /* Log stats for FLOGI reject */
289 if (fc_frame_payload_op(fp) == ELS_LS_RJT)
290 qedf->flogi_failed++;
291 else if (fc_frame_payload_op(fp) == ELS_LS_ACC) {
292 /* Set the source MAC we will use for FCoE traffic */
293 qedf_set_data_src_addr(qedf, fp);
294 qedf->flogi_pending = 0;
297 /* Complete flogi_compl so we can proceed to sending ADISCs */
298 complete(&qedf->flogi_compl);
301 /* Report response to libfc */
302 fc_lport_flogi_resp(seq, fp, lport);
305 static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
306 struct fc_frame *fp, unsigned int op,
307 void (*resp)(struct fc_seq *,
310 void *arg, u32 timeout)
312 struct qedf_ctx *qedf = lport_priv(lport);
315 * Intercept FLOGI for statistic purposes. Note we use the resp
316 * callback to tell if this is really a flogi.
318 if (resp == fc_lport_flogi_resp) {
320 if (qedf->flogi_pending >= QEDF_FLOGI_RETRY_CNT) {
321 schedule_delayed_work(&qedf->stag_work, 2);
324 qedf->flogi_pending++;
325 return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
329 return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
332 int qedf_send_flogi(struct qedf_ctx *qedf)
334 struct fc_lport *lport;
339 if (!lport->tt.elsct_send) {
340 QEDF_ERR(&qedf->dbg_ctx, "tt.elsct_send not set.\n");
344 fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
346 QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
350 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
351 "Sending FLOGI to reestablish session with switch.\n");
352 lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
353 ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
355 init_completion(&qedf->flogi_compl);
361 * This function is called if link_down_tmo is in use. If we get a link up and
362 * link_down_tmo has not expired then use just FLOGI/ADISC to recover our
363 * sessions with targets. Otherwise, just call fcoe_ctlr_link_up().
365 static void qedf_link_recovery(struct work_struct *work)
367 struct qedf_ctx *qedf =
368 container_of(work, struct qedf_ctx, link_recovery.work);
369 struct fc_lport *lport = qedf->lport;
370 struct fc_rport_priv *rdata;
374 struct list_head rdata_login_list;
376 INIT_LIST_HEAD(&rdata_login_list);
378 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
379 "Link down tmo did not expire.\n");
382 * Essentially reset the fcoe_ctlr here without affecting the state
383 * of the libfc structs.
385 qedf->ctlr.state = FIP_ST_LINK_WAIT;
386 fcoe_ctlr_link_down(&qedf->ctlr);
389 * Bring the link up before we send the fipvlan request so libfcoe
390 * can select a new fcf in parallel
392 fcoe_ctlr_link_up(&qedf->ctlr);
394 /* Since the link when down and up to verify which vlan we're on */
395 qedf->fipvlan_retries = qedf_fipvlan_retries;
396 rc = qedf_initiate_fipvlan_req(qedf);
397 /* If getting the VLAN fails, set the VLAN to the fallback one */
399 qedf_set_vlan_id(qedf, qedf_fallback_vlan);
402 * We need to wait for an FCF to be selected due to the
403 * fcoe_ctlr_link_up other the FLOGI will be rejected.
405 while (retries > 0) {
406 if (qedf->ctlr.sel_fcf) {
407 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
408 "FCF reselected, proceeding with FLOGI.\n");
416 QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
421 rval = qedf_send_flogi(qedf);
425 /* Wait for FLOGI completion before proceeding with sending ADISCs */
426 i = wait_for_completion_timeout(&qedf->flogi_compl,
427 qedf->lport->r_a_tov);
429 QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
434 * Call lport->tt.rport_login which will cause libfc to send an
435 * ADISC since the rport is in state ready.
437 mutex_lock(&lport->disc.disc_mutex);
438 list_for_each_entry_rcu(rdata, &lport->disc.rports, peers) {
439 if (kref_get_unless_zero(&rdata->kref)) {
440 fc_rport_login(rdata);
441 kref_put(&rdata->kref, fc_rport_destroy);
444 mutex_unlock(&lport->disc.disc_mutex);
447 static void qedf_update_link_speed(struct qedf_ctx *qedf,
448 struct qed_link_output *link)
450 __ETHTOOL_DECLARE_LINK_MODE_MASK(sup_caps);
451 struct fc_lport *lport = qedf->lport;
453 lport->link_speed = FC_PORTSPEED_UNKNOWN;
454 lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
456 /* Set fc_host link speed */
457 switch (link->speed) {
459 lport->link_speed = FC_PORTSPEED_10GBIT;
462 lport->link_speed = FC_PORTSPEED_25GBIT;
465 lport->link_speed = FC_PORTSPEED_40GBIT;
468 lport->link_speed = FC_PORTSPEED_50GBIT;
471 lport->link_speed = FC_PORTSPEED_100GBIT;
474 lport->link_speed = FC_PORTSPEED_20GBIT;
477 lport->link_speed = FC_PORTSPEED_UNKNOWN;
482 * Set supported link speed by querying the supported
483 * capabilities of the link.
486 phylink_zero(sup_caps);
487 phylink_set(sup_caps, 10000baseT_Full);
488 phylink_set(sup_caps, 10000baseKX4_Full);
489 phylink_set(sup_caps, 10000baseR_FEC);
490 phylink_set(sup_caps, 10000baseCR_Full);
491 phylink_set(sup_caps, 10000baseSR_Full);
492 phylink_set(sup_caps, 10000baseLR_Full);
493 phylink_set(sup_caps, 10000baseLRM_Full);
494 phylink_set(sup_caps, 10000baseKR_Full);
496 if (linkmode_intersects(link->supported_caps, sup_caps))
497 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
499 phylink_zero(sup_caps);
500 phylink_set(sup_caps, 25000baseKR_Full);
501 phylink_set(sup_caps, 25000baseCR_Full);
502 phylink_set(sup_caps, 25000baseSR_Full);
504 if (linkmode_intersects(link->supported_caps, sup_caps))
505 lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
507 phylink_zero(sup_caps);
508 phylink_set(sup_caps, 40000baseLR4_Full);
509 phylink_set(sup_caps, 40000baseKR4_Full);
510 phylink_set(sup_caps, 40000baseCR4_Full);
511 phylink_set(sup_caps, 40000baseSR4_Full);
513 if (linkmode_intersects(link->supported_caps, sup_caps))
514 lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
516 phylink_zero(sup_caps);
517 phylink_set(sup_caps, 50000baseKR2_Full);
518 phylink_set(sup_caps, 50000baseCR2_Full);
519 phylink_set(sup_caps, 50000baseSR2_Full);
521 if (linkmode_intersects(link->supported_caps, sup_caps))
522 lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
524 phylink_zero(sup_caps);
525 phylink_set(sup_caps, 100000baseKR4_Full);
526 phylink_set(sup_caps, 100000baseSR4_Full);
527 phylink_set(sup_caps, 100000baseCR4_Full);
528 phylink_set(sup_caps, 100000baseLR4_ER4_Full);
530 if (linkmode_intersects(link->supported_caps, sup_caps))
531 lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
533 phylink_zero(sup_caps);
534 phylink_set(sup_caps, 20000baseKR2_Full);
536 if (linkmode_intersects(link->supported_caps, sup_caps))
537 lport->link_supported_speeds |= FC_PORTSPEED_20GBIT;
539 if (lport->host && lport->host->shost_data)
540 fc_host_supported_speeds(lport->host) =
541 lport->link_supported_speeds;
544 static void qedf_bw_update(void *dev)
546 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
547 struct qed_link_output link;
549 /* Get the latest status of the link */
550 qed_ops->common->get_link(qedf->cdev, &link);
552 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
553 QEDF_ERR(&qedf->dbg_ctx,
554 "Ignore link update, driver getting unload.\n");
559 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)
560 qedf_update_link_speed(qedf, &link);
562 QEDF_ERR(&qedf->dbg_ctx,
563 "Ignore bw update, link is down.\n");
566 QEDF_ERR(&qedf->dbg_ctx, "link_up is not set.\n");
570 static void qedf_link_update(void *dev, struct qed_link_output *link)
572 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
575 * Prevent race where we're removing the module and we get link update
578 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
579 QEDF_ERR(&qedf->dbg_ctx,
580 "Ignore link update, driver getting unload.\n");
585 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
586 QEDF_INFO((&qedf->dbg_ctx), QEDF_LOG_DISC,
587 "Ignoring link up event as link is already up.\n");
590 QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
593 /* Cancel any pending link down work */
594 cancel_delayed_work(&qedf->link_update);
596 atomic_set(&qedf->link_state, QEDF_LINK_UP);
597 qedf_update_link_speed(qedf, link);
599 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE ||
601 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
603 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
604 queue_delayed_work(qedf->link_update_wq,
605 &qedf->link_recovery, 0);
607 queue_delayed_work(qedf->link_update_wq,
608 &qedf->link_update, 0);
609 atomic_set(&qedf->link_down_tmo_valid, 0);
613 QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
615 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
616 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
618 * Flag that we're waiting for the link to come back up before
619 * informing the fcoe layer of the event.
621 if (qedf_link_down_tmo > 0) {
622 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
623 "Starting link down tmo.\n");
624 atomic_set(&qedf->link_down_tmo_valid, 1);
627 qedf_update_link_speed(qedf, link);
628 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
629 qedf_link_down_tmo * HZ);
634 static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
636 struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
639 QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
640 "prio=%d.\n", get->operational.valid, get->operational.enabled,
641 get->operational.app_prio.fcoe);
643 if (get->operational.enabled && get->operational.valid) {
644 /* If DCBX was already negotiated on link up then just exit */
645 if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
646 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
647 "DCBX already set on link up.\n");
651 atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
654 * Set the 8021q priority in the following manner:
656 * 1. If a modparam is set use that
657 * 2. If the value is not between 0..7 use the default
658 * 3. Use the priority we get from the DCBX app tag
660 tmp_prio = get->operational.app_prio.fcoe;
661 if (qedf_default_prio > -1)
662 qedf->prio = qedf_default_prio;
663 else if (tmp_prio > 7) {
664 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
665 "FIP/FCoE prio %d out of range, setting to %d.\n",
666 tmp_prio, QEDF_DEFAULT_PRIO);
667 qedf->prio = QEDF_DEFAULT_PRIO;
669 qedf->prio = tmp_prio;
671 if (atomic_read(&qedf->link_state) == QEDF_LINK_UP &&
672 !qedf_dcbx_no_wait) {
673 if (atomic_read(&qedf->link_down_tmo_valid) > 0)
674 queue_delayed_work(qedf->link_update_wq,
675 &qedf->link_recovery, 0);
677 queue_delayed_work(qedf->link_update_wq,
678 &qedf->link_update, 0);
679 atomic_set(&qedf->link_down_tmo_valid, 0);
685 static u32 qedf_get_login_failures(void *cookie)
687 struct qedf_ctx *qedf;
689 qedf = (struct qedf_ctx *)cookie;
690 return qedf->flogi_failed;
693 static struct qed_fcoe_cb_ops qedf_cb_ops = {
695 .link_update = qedf_link_update,
696 .bw_update = qedf_bw_update,
697 .schedule_recovery_handler = qedf_schedule_recovery_handler,
698 .dcbx_aen = qedf_dcbx_handler,
699 .get_generic_tlv_data = qedf_get_generic_tlv_data,
700 .get_protocol_tlv_data = qedf_get_protocol_tlv_data,
701 .schedule_hw_err_handler = qedf_schedule_hw_err_handler,
706 * Various transport templates.
709 static struct scsi_transport_template *qedf_fc_transport_template;
710 static struct scsi_transport_template *qedf_fc_vport_transport_template;
715 static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
717 struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
718 struct fc_lport *lport;
719 struct qedf_ctx *qedf;
720 struct qedf_ioreq *io_req;
721 struct fc_rport_libfc_priv *rp = rport->dd_data;
722 struct fc_rport_priv *rdata;
723 struct qedf_rport *fcport = NULL;
725 int wait_count = 100;
730 lport = shost_priv(sc_cmd->device->host);
731 qedf = (struct qedf_ctx *)lport_priv(lport);
733 /* rport and tgt are allocated together, so tgt should be non-NULL */
734 fcport = (struct qedf_rport *)&rp[1];
735 rdata = fcport->rdata;
736 if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
737 QEDF_ERR(&qedf->dbg_ctx, "stale rport, sc_cmd=%p\n", sc_cmd);
743 io_req = (struct qedf_ioreq *)sc_cmd->SCp.ptr;
745 QEDF_ERR(&qedf->dbg_ctx,
746 "sc_cmd not queued with lld, sc_cmd=%p op=0x%02x, port_id=%06x\n",
747 sc_cmd, sc_cmd->cmnd[0],
750 goto drop_rdata_kref;
753 rval = kref_get_unless_zero(&io_req->refcount); /* ID: 005 */
757 /* If we got a valid io_req, confirm it belongs to this sc_cmd. */
758 if (!rval || io_req->sc_cmd != sc_cmd) {
759 QEDF_ERR(&qedf->dbg_ctx,
760 "Freed/Incorrect io_req, io_req->sc_cmd=%p, sc_cmd=%p, port_id=%06x, bailing out.\n",
761 io_req->sc_cmd, sc_cmd, rdata->ids.port_id);
763 goto drop_rdata_kref;
766 if (fc_remote_port_chkready(rport)) {
767 refcount = kref_read(&io_req->refcount);
768 QEDF_ERR(&qedf->dbg_ctx,
769 "rport not ready, io_req=%p, xid=0x%x sc_cmd=%p op=0x%02x, refcount=%d, port_id=%06x\n",
770 io_req, io_req->xid, sc_cmd, sc_cmd->cmnd[0],
771 refcount, rdata->ids.port_id);
773 goto drop_rdata_kref;
776 rc = fc_block_scsi_eh(sc_cmd);
778 goto drop_rdata_kref;
780 if (test_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags)) {
781 QEDF_ERR(&qedf->dbg_ctx,
782 "Connection uploading, xid=0x%x., port_id=%06x\n",
783 io_req->xid, rdata->ids.port_id);
784 while (io_req->sc_cmd && (wait_count != 0)) {
789 QEDF_ERR(&qedf->dbg_ctx, "ABTS succeeded\n");
792 QEDF_ERR(&qedf->dbg_ctx, "ABTS failed\n");
795 goto drop_rdata_kref;
798 if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
799 QEDF_ERR(&qedf->dbg_ctx, "link not ready.\n");
800 goto drop_rdata_kref;
803 QEDF_ERR(&qedf->dbg_ctx,
804 "Aborting io_req=%p sc_cmd=%p xid=0x%x fp_idx=%d, port_id=%06x.\n",
805 io_req, sc_cmd, io_req->xid, io_req->fp_idx,
808 if (qedf->stop_io_on_error) {
809 qedf_stop_all_io(qedf);
811 goto drop_rdata_kref;
814 init_completion(&io_req->abts_done);
815 rval = qedf_initiate_abts(io_req, true);
817 QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
819 * If we fail to queue the ABTS then return this command to
820 * the SCSI layer as it will own and free the xid
823 qedf_scsi_done(qedf, io_req, DID_ERROR);
824 goto drop_rdata_kref;
827 wait_for_completion(&io_req->abts_done);
829 if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
830 io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
831 io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
833 * If we get a reponse to the abort this is success from
834 * the perspective that all references to the command have
835 * been removed from the driver and firmware
839 /* If the abort and cleanup failed then return a failure */
844 QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
847 QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
851 kref_put(&rdata->kref, fc_rport_destroy);
854 kref_put(&io_req->refcount, qedf_release_cmd);
858 static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
860 QEDF_ERR(NULL, "%d:0:%d:%lld: TARGET RESET Issued...",
861 sc_cmd->device->host->host_no, sc_cmd->device->id,
862 sc_cmd->device->lun);
863 return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
866 static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
868 QEDF_ERR(NULL, "%d:0:%d:%lld: LUN RESET Issued... ",
869 sc_cmd->device->host->host_no, sc_cmd->device->id,
870 sc_cmd->device->lun);
871 return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
874 bool qedf_wait_for_upload(struct qedf_ctx *qedf)
876 struct qedf_rport *fcport = NULL;
880 if (atomic_read(&qedf->num_offloads))
881 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
882 "Waiting for all uploads to complete num_offloads = 0x%x.\n",
883 atomic_read(&qedf->num_offloads));
890 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
891 if (fcport && test_bit(QEDF_RPORT_SESSION_READY,
894 QEDF_ERR(&qedf->dbg_ctx,
895 "Waiting for fcport %p portid=%06x.\n",
896 fcport, fcport->rdata->ids.port_id);
898 QEDF_ERR(&qedf->dbg_ctx,
899 "Waiting for fcport %p.\n", fcport);
907 /* Performs soft reset of qedf_ctx by simulating a link down/up */
908 void qedf_ctx_soft_reset(struct fc_lport *lport)
910 struct qedf_ctx *qedf;
911 struct qed_link_output if_link;
914 QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n");
918 qedf = lport_priv(lport);
920 qedf->flogi_pending = 0;
921 /* For host reset, essentially do a soft link up/down */
922 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
923 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
924 "Queuing link down work.\n");
925 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
928 if (qedf_wait_for_upload(qedf) == false) {
929 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
930 WARN_ON(atomic_read(&qedf->num_offloads));
933 /* Before setting link up query physical link state */
934 qed_ops->common->get_link(qedf->cdev, &if_link);
935 /* Bail if the physical link is not up */
936 if (!if_link.link_up) {
937 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
938 "Physical link is not up.\n");
941 /* Flush and wait to make sure link down is processed */
942 flush_delayed_work(&qedf->link_update);
945 atomic_set(&qedf->link_state, QEDF_LINK_UP);
947 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
948 "Queue link up work.\n");
949 queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
953 /* Reset the host by gracefully logging out and then logging back in */
954 static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
956 struct fc_lport *lport;
957 struct qedf_ctx *qedf;
959 lport = shost_priv(sc_cmd->device->host);
960 qedf = lport_priv(lport);
962 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
963 test_bit(QEDF_UNLOADING, &qedf->flags))
966 QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
968 qedf_ctx_soft_reset(lport);
973 static int qedf_slave_configure(struct scsi_device *sdev)
975 if (qedf_queue_depth) {
976 scsi_change_queue_depth(sdev, qedf_queue_depth);
982 static struct scsi_host_template qedf_host_template = {
983 .module = THIS_MODULE,
984 .name = QEDF_MODULE_NAME,
987 .max_sectors = 0xffff,
988 .queuecommand = qedf_queuecommand,
989 .shost_attrs = qedf_host_attrs,
990 .eh_abort_handler = qedf_eh_abort,
991 .eh_device_reset_handler = qedf_eh_device_reset, /* lun reset */
992 .eh_target_reset_handler = qedf_eh_target_reset, /* target reset */
993 .eh_host_reset_handler = qedf_eh_host_reset,
994 .slave_configure = qedf_slave_configure,
995 .dma_boundary = QED_HW_DMA_BOUNDARY,
996 .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
997 .can_queue = FCOE_PARAMS_NUM_TASKS,
998 .change_queue_depth = scsi_change_queue_depth,
1001 static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
1005 spin_lock(&qedf_global_lock);
1006 rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
1007 spin_unlock(&qedf_global_lock);
1012 static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
1014 struct qedf_rport *fcport;
1015 struct fc_rport_priv *rdata;
1018 list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
1019 rdata = fcport->rdata;
1022 if (rdata->ids.port_id == port_id) {
1029 /* Return NULL to caller to let them know fcport was not found */
1033 /* Transmits an ELS frame over an offloaded session */
1034 static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
1036 struct fc_frame_header *fh;
1039 fh = fc_frame_header_get(fp);
1040 if ((fh->fh_type == FC_TYPE_ELS) &&
1041 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1042 switch (fc_frame_payload_op(fp)) {
1044 qedf_send_adisc(fcport, fp);
1054 * qedf_xmit - qedf FCoE frame transmit function
1056 static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
1058 struct fc_lport *base_lport;
1059 struct qedf_ctx *qedf;
1061 struct fcoe_crc_eof *cp;
1062 struct sk_buff *skb;
1063 struct fc_frame_header *fh;
1064 struct fcoe_hdr *hp;
1067 unsigned int hlen, tlen, elen;
1069 struct fc_stats *stats;
1070 struct fc_lport *tmp_lport;
1071 struct fc_lport *vn_port = NULL;
1072 struct qedf_rport *fcport;
1076 qedf = (struct qedf_ctx *)lport_priv(lport);
1078 fh = fc_frame_header_get(fp);
1081 /* Filter out traffic to other NPIV ports on the same host */
1083 base_lport = shost_priv(vport_to_shost(lport->vport));
1087 /* Flag if the destination is the base port */
1088 if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
1089 vn_port = base_lport;
1091 /* Got through the list of vports attached to the base_lport
1092 * and see if we have a match with the destination address.
1094 list_for_each_entry(tmp_lport, &base_lport->vports, list) {
1095 if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
1096 vn_port = tmp_lport;
1101 if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
1102 struct fc_rport_priv *rdata = NULL;
1104 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
1105 "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
1107 rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
1109 rdata->retries = lport->max_rport_retry_count;
1110 kref_put(&rdata->kref, fc_rport_destroy);
1114 /* End NPIV filtering */
1116 if (!qedf->ctlr.sel_fcf) {
1121 if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
1122 QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
1127 if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
1128 QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
1133 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
1134 if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
1138 /* Check to see if this needs to be sent on an offloaded session */
1139 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
1141 if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1142 rc = qedf_xmit_l2_frame(fcport, fp);
1144 * If the frame was successfully sent over the middle path
1145 * then do not try to also send it over the LL2 path
1154 elen = sizeof(struct ethhdr);
1155 hlen = sizeof(struct fcoe_hdr);
1156 tlen = sizeof(struct fcoe_crc_eof);
1157 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
1159 skb->ip_summed = CHECKSUM_NONE;
1160 crc = fcoe_fc_crc(fp);
1162 /* copy port crc and eof to the skb buff */
1163 if (skb_is_nonlinear(skb)) {
1166 if (qedf_get_paged_crc_eof(skb, tlen)) {
1170 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
1171 cp = kmap_atomic(skb_frag_page(frag)) + skb_frag_off(frag);
1173 cp = skb_put(skb, tlen);
1176 memset(cp, 0, sizeof(*cp));
1178 cp->fcoe_crc32 = cpu_to_le32(~crc);
1179 if (skb_is_nonlinear(skb)) {
1185 /* adjust skb network/transport offsets to match mac/fcoe/port */
1186 skb_push(skb, elen + hlen);
1187 skb_reset_mac_header(skb);
1188 skb_reset_network_header(skb);
1189 skb->mac_len = elen;
1190 skb->protocol = htons(ETH_P_FCOE);
1193 * Add VLAN tag to non-offload FCoE frame based on current stored VLAN
1194 * for FIP/FCoE traffic.
1196 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
1198 /* fill up mac and fcoe headers */
1200 eh->h_proto = htons(ETH_P_FCOE);
1201 if (qedf->ctlr.map_dest)
1202 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
1204 /* insert GW address */
1205 ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
1207 /* Set the source MAC address */
1208 ether_addr_copy(eh->h_source, qedf->data_src_addr);
1210 hp = (struct fcoe_hdr *)(eh + 1);
1211 memset(hp, 0, sizeof(*hp));
1213 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
1216 /*update tx stats */
1217 stats = per_cpu_ptr(lport->stats, get_cpu());
1219 stats->TxWords += wlen;
1222 /* Get VLAN ID from skb for printing purposes */
1223 __vlan_hwaccel_get_tag(skb, &vlan_tci);
1225 /* send down to lld */
1227 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
1228 "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
1229 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
1231 if (qedf_dump_frames)
1232 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
1233 1, skb->data, skb->len, false);
1234 rc = qed_ops->ll2->start_xmit(qedf->cdev, skb, 0);
1236 QEDF_ERR(&qedf->dbg_ctx, "start_xmit failed rc = %d.\n", rc);
1244 static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1251 /* Calculate appropriate queue and PBL sizes */
1252 fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
1253 fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
1254 fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
1256 fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
1258 fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1259 &fcport->sq_dma, GFP_KERNEL);
1261 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue.\n");
1266 fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
1267 fcport->sq_pbl_size,
1268 &fcport->sq_pbl_dma, GFP_KERNEL);
1269 if (!fcport->sq_pbl) {
1270 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send queue PBL.\n");
1276 num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
1277 page = fcport->sq_dma;
1278 pbl = (u32 *)fcport->sq_pbl;
1280 while (num_pages--) {
1281 *pbl = U64_LO(page);
1283 *pbl = U64_HI(page);
1285 page += QEDF_PAGE_SIZE;
1291 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
1297 static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
1300 dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
1301 fcport->sq_pbl, fcport->sq_pbl_dma);
1303 dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
1304 fcport->sq, fcport->sq_dma);
1307 static int qedf_offload_connection(struct qedf_ctx *qedf,
1308 struct qedf_rport *fcport)
1310 struct qed_fcoe_params_offload conn_info;
1313 uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
1315 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
1316 "portid=%06x.\n", fcport->rdata->ids.port_id);
1317 rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
1318 &fcport->fw_cid, &fcport->p_doorbell);
1320 QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
1321 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1322 rval = 1; /* For some reason qed returns 0 on failure here */
1326 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
1327 "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
1328 fcport->fw_cid, fcport->handle);
1330 memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
1332 /* Fill in the offload connection info */
1333 conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
1335 conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
1336 conn_info.sq_next_page_addr =
1337 (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
1339 /* Need to use our FCoE MAC for the offload session */
1340 ether_addr_copy(conn_info.src_mac, qedf->data_src_addr);
1342 ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
1344 conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
1345 conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov;
1346 conn_info.rec_tov_timer_val = 3; /* I think this is what E3 was */
1347 conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
1350 conn_info.vlan_tag = qedf->vlan_id <<
1351 FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
1352 conn_info.vlan_tag |=
1353 qedf->prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
1354 conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
1355 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
1357 /* Set host port source id */
1358 port_id = fc_host_port_id(qedf->lport->host);
1359 fcport->sid = port_id;
1360 conn_info.s_id.addr_hi = (port_id & 0x000000FF);
1361 conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1362 conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1364 conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
1366 /* Set remote port destination id */
1367 port_id = fcport->rdata->rport->port_id;
1368 conn_info.d_id.addr_hi = (port_id & 0x000000FF);
1369 conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
1370 conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
1372 conn_info.def_q_idx = 0; /* Default index for send queue? */
1374 /* Set FC-TAPE specific flags if needed */
1375 if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
1376 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
1377 "Enable CONF, REC for portid=%06x.\n",
1378 fcport->rdata->ids.port_id);
1379 conn_info.flags |= 1 <<
1380 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
1382 ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
1383 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
1386 rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
1388 QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
1389 "for portid=%06x.\n", fcport->rdata->ids.port_id);
1392 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
1393 "succeeded portid=%06x total_sqe=%d.\n",
1394 fcport->rdata->ids.port_id, total_sqe);
1396 spin_lock_init(&fcport->rport_lock);
1397 atomic_set(&fcport->free_sqes, total_sqe);
1400 qed_ops->release_conn(qedf->cdev, fcport->handle);
1405 #define QEDF_TERM_BUFF_SIZE 10
1406 static void qedf_upload_connection(struct qedf_ctx *qedf,
1407 struct qedf_rport *fcport)
1410 dma_addr_t term_params_dma;
1412 /* Term params needs to be a DMA coherent buffer as qed shared the
1413 * physical DMA address with the firmware. The buffer may be used in
1414 * the receive path so we may eventually have to move this.
1416 term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
1417 &term_params_dma, GFP_KERNEL);
1419 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
1420 "port_id=%06x.\n", fcport->rdata->ids.port_id);
1422 qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
1423 qed_ops->release_conn(qedf->cdev, fcport->handle);
1425 dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
1429 static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
1430 struct qedf_rport *fcport)
1432 struct fc_rport_priv *rdata = fcport->rdata;
1434 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
1435 fcport->rdata->ids.port_id);
1437 /* Flush any remaining i/o's before we upload the connection */
1438 qedf_flush_active_ios(fcport, -1);
1440 if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
1441 qedf_upload_connection(qedf, fcport);
1442 qedf_free_sq(qedf, fcport);
1443 fcport->rdata = NULL;
1444 fcport->qedf = NULL;
1445 kref_put(&rdata->kref, fc_rport_destroy);
1449 * This event_callback is called after successful completion of libfc
1450 * initiated target login. qedf can proceed with initiating the session
1453 static void qedf_rport_event_handler(struct fc_lport *lport,
1454 struct fc_rport_priv *rdata,
1455 enum fc_rport_event event)
1457 struct qedf_ctx *qedf = lport_priv(lport);
1458 struct fc_rport *rport = rdata->rport;
1459 struct fc_rport_libfc_priv *rp;
1460 struct qedf_rport *fcport;
1463 unsigned long flags;
1465 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
1466 "port_id = 0x%x\n", event, rdata->ids.port_id);
1469 case RPORT_EV_READY:
1471 QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
1475 rp = rport->dd_data;
1476 fcport = (struct qedf_rport *)&rp[1];
1477 fcport->qedf = qedf;
1479 if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
1480 QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
1481 "portid=0x%x as max number of offloaded sessions "
1482 "reached.\n", rdata->ids.port_id);
1487 * Don't try to offload the session again. Can happen when we
1490 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
1491 QEDF_WARN(&(qedf->dbg_ctx), "Session already "
1492 "offloaded, portid=0x%x.\n",
1493 rdata->ids.port_id);
1497 if (rport->port_id == FC_FID_DIR_SERV) {
1499 * qedf_rport structure doesn't exist for
1501 * We should not come here, as lport will
1502 * take care of fabric login
1504 QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
1505 "exist for dir server port_id=%x\n",
1506 rdata->ids.port_id);
1510 if (rdata->spp_type != FC_TYPE_FCP) {
1511 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1512 "Not offloading since spp type isn't FCP\n");
1515 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1516 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1517 "Not FCP target so not offloading\n");
1521 /* Initial reference held on entry, so this can't fail */
1522 kref_get(&rdata->kref);
1523 fcport->rdata = rdata;
1524 fcport->rport = rport;
1526 rval = qedf_alloc_sq(qedf, fcport);
1528 qedf_cleanup_fcport(qedf, fcport);
1532 /* Set device type */
1533 if (rdata->flags & FC_RP_FLAGS_RETRY &&
1534 rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
1535 !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
1536 fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
1537 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1538 "portid=%06x is a TAPE device.\n",
1539 rdata->ids.port_id);
1541 fcport->dev_type = QEDF_RPORT_TYPE_DISK;
1544 rval = qedf_offload_connection(qedf, fcport);
1546 qedf_cleanup_fcport(qedf, fcport);
1550 /* Add fcport to list of qedf_ctx list of offloaded ports */
1551 spin_lock_irqsave(&qedf->hba_lock, flags);
1552 list_add_rcu(&fcport->peers, &qedf->fcports);
1553 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1556 * Set the session ready bit to let everyone know that this
1557 * connection is ready for I/O
1559 set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
1560 atomic_inc(&qedf->num_offloads);
1564 case RPORT_EV_FAILED:
1566 port_id = rdata->ids.port_id;
1567 if (port_id == FC_FID_DIR_SERV)
1570 if (rdata->spp_type != FC_TYPE_FCP) {
1571 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1572 "No action since spp type isn't FCP\n");
1575 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
1576 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1577 "Not FCP target so no action\n");
1582 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
1583 "port_id=%x - rport notcreated Yet!!\n", port_id);
1586 rp = rport->dd_data;
1588 * Perform session upload. Note that rdata->peers is already
1589 * removed from disc->rports list before we get this event.
1591 fcport = (struct qedf_rport *)&rp[1];
1593 spin_lock_irqsave(&fcport->rport_lock, flags);
1594 /* Only free this fcport if it is offloaded already */
1595 if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags) &&
1596 !test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1598 set_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1600 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1601 qedf_cleanup_fcport(qedf, fcport);
1603 * Remove fcport to list of qedf_ctx list of offloaded
1606 spin_lock_irqsave(&qedf->hba_lock, flags);
1607 list_del_rcu(&fcport->peers);
1608 spin_unlock_irqrestore(&qedf->hba_lock, flags);
1610 clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
1612 atomic_dec(&qedf->num_offloads);
1614 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1623 static void qedf_abort_io(struct fc_lport *lport)
1625 /* NO-OP but need to fill in the template */
1628 static void qedf_fcp_cleanup(struct fc_lport *lport)
1631 * NO-OP but need to fill in template to prevent a NULL
1632 * function pointer dereference during link down. I/Os
1633 * will be flushed when port is uploaded.
1637 static struct libfc_function_template qedf_lport_template = {
1638 .frame_send = qedf_xmit,
1639 .fcp_abort_io = qedf_abort_io,
1640 .fcp_cleanup = qedf_fcp_cleanup,
1641 .rport_event_callback = qedf_rport_event_handler,
1642 .elsct_send = qedf_elsct_send,
1645 static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
1647 fcoe_ctlr_init(&qedf->ctlr, FIP_MODE_AUTO);
1649 qedf->ctlr.send = qedf_fip_send;
1650 qedf->ctlr.get_src_addr = qedf_get_src_mac;
1651 ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
1654 static void qedf_setup_fdmi(struct qedf_ctx *qedf)
1656 struct fc_lport *lport = qedf->lport;
1662 * fdmi_enabled needs to be set for libfc
1663 * to execute FDMI registration
1665 lport->fdmi_enabled = 1;
1668 * Setup the necessary fc_host attributes to that will be used to fill
1669 * in the FDMI information.
1672 /* Get the PCI-e Device Serial Number Capability */
1673 pos = pci_find_ext_capability(qedf->pdev, PCI_EXT_CAP_ID_DSN);
1676 for (i = 0; i < 8; i++)
1677 pci_read_config_byte(qedf->pdev, pos + i, &buf[i]);
1679 snprintf(fc_host_serial_number(lport->host),
1680 FC_SERIAL_NUMBER_SIZE,
1681 "%02X%02X%02X%02X%02X%02X%02X%02X",
1682 buf[7], buf[6], buf[5], buf[4],
1683 buf[3], buf[2], buf[1], buf[0]);
1685 snprintf(fc_host_serial_number(lport->host),
1686 FC_SERIAL_NUMBER_SIZE, "Unknown");
1688 snprintf(fc_host_manufacturer(lport->host),
1689 FC_SERIAL_NUMBER_SIZE, "%s", "Marvell Semiconductor Inc.");
1691 if (qedf->pdev->device == QL45xxx) {
1692 snprintf(fc_host_model(lport->host),
1693 FC_SYMBOLIC_NAME_SIZE, "%s", "QL45xxx");
1695 snprintf(fc_host_model_description(lport->host),
1696 FC_SYMBOLIC_NAME_SIZE, "%s",
1697 "Marvell FastLinQ QL45xxx FCoE Adapter");
1700 if (qedf->pdev->device == QL41xxx) {
1701 snprintf(fc_host_model(lport->host),
1702 FC_SYMBOLIC_NAME_SIZE, "%s", "QL41xxx");
1704 snprintf(fc_host_model_description(lport->host),
1705 FC_SYMBOLIC_NAME_SIZE, "%s",
1706 "Marvell FastLinQ QL41xxx FCoE Adapter");
1709 snprintf(fc_host_hardware_version(lport->host),
1710 FC_VERSION_STRING_SIZE, "Rev %d", qedf->pdev->revision);
1712 snprintf(fc_host_driver_version(lport->host),
1713 FC_VERSION_STRING_SIZE, "%s", QEDF_VERSION);
1715 snprintf(fc_host_firmware_version(lport->host),
1716 FC_VERSION_STRING_SIZE, "%d.%d.%d.%d",
1717 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
1718 FW_ENGINEERING_VERSION);
1720 snprintf(fc_host_vendor_identifier(lport->host),
1721 FC_VENDOR_IDENTIFIER, "%s", "Marvell");
1725 static int qedf_lport_setup(struct qedf_ctx *qedf)
1727 struct fc_lport *lport = qedf->lport;
1730 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1731 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1732 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1733 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1734 lport->boot_time = jiffies;
1735 lport->e_d_tov = 2 * 1000;
1736 lport->r_a_tov = 10 * 1000;
1738 /* Set NPIV support */
1739 lport->does_npiv = 1;
1740 fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
1742 fc_set_wwnn(lport, qedf->wwnn);
1743 fc_set_wwpn(lport, qedf->wwpn);
1745 if (fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0)) {
1746 QEDF_ERR(&qedf->dbg_ctx,
1747 "fcoe_libfc_config failed.\n");
1751 /* Allocate the exchange manager */
1752 fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_PARAMS_NUM_TASKS,
1755 if (fc_lport_init_stats(lport))
1758 /* Finish lport config */
1759 fc_lport_config(lport);
1761 /* Set max frame size */
1762 fc_set_mfs(lport, QEDF_MFS);
1763 fc_host_maxframe_size(lport->host) = lport->mfs;
1765 /* Set default dev_loss_tmo based on module parameter */
1766 fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
1768 /* Set symbolic node name */
1769 if (qedf->pdev->device == QL45xxx)
1770 snprintf(fc_host_symbolic_name(lport->host), 256,
1771 "Marvell FastLinQ 45xxx FCoE v%s", QEDF_VERSION);
1773 if (qedf->pdev->device == QL41xxx)
1774 snprintf(fc_host_symbolic_name(lport->host), 256,
1775 "Marvell FastLinQ 41xxx FCoE v%s", QEDF_VERSION);
1777 qedf_setup_fdmi(qedf);
1786 static int qedf_vport_libfc_config(struct fc_vport *vport,
1787 struct fc_lport *lport)
1791 lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
1792 lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
1793 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1794 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1795 lport->boot_time = jiffies;
1796 lport->e_d_tov = 2 * 1000;
1797 lport->r_a_tov = 10 * 1000;
1798 lport->does_npiv = 1; /* Temporary until we add NPIV support */
1800 /* Allocate stats for vport */
1801 if (fc_lport_init_stats(lport))
1804 /* Finish lport config */
1805 fc_lport_config(lport);
1807 /* offload related configuration */
1808 lport->crc_offload = 0;
1809 lport->seq_offload = 0;
1810 lport->lro_enabled = 0;
1817 static int qedf_vport_create(struct fc_vport *vport, bool disabled)
1819 struct Scsi_Host *shost = vport_to_shost(vport);
1820 struct fc_lport *n_port = shost_priv(shost);
1821 struct fc_lport *vn_port;
1822 struct qedf_ctx *base_qedf = lport_priv(n_port);
1823 struct qedf_ctx *vport_qedf;
1828 rc = fcoe_validate_vport_create(vport);
1830 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1831 QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
1832 "WWPN (0x%s) already exists.\n", buf);
1836 if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
1837 QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
1838 "because link is not up.\n");
1842 vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
1844 QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
1849 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1850 QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
1853 /* Copy some fields from base_qedf */
1854 vport_qedf = lport_priv(vn_port);
1855 memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
1857 /* Set qedf data specific to this vport */
1858 vport_qedf->lport = vn_port;
1859 /* Use same hba_lock as base_qedf */
1860 vport_qedf->hba_lock = base_qedf->hba_lock;
1861 vport_qedf->pdev = base_qedf->pdev;
1862 vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
1863 init_completion(&vport_qedf->flogi_compl);
1864 INIT_LIST_HEAD(&vport_qedf->fcports);
1866 rc = qedf_vport_libfc_config(vport, vn_port);
1868 QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
1869 "for lport stats.\n");
1873 fc_set_wwnn(vn_port, vport->node_name);
1874 fc_set_wwpn(vn_port, vport->port_name);
1875 vport_qedf->wwnn = vn_port->wwnn;
1876 vport_qedf->wwpn = vn_port->wwpn;
1878 vn_port->host->transportt = qedf_fc_vport_transport_template;
1879 vn_port->host->can_queue = FCOE_PARAMS_NUM_TASKS;
1880 vn_port->host->max_lun = qedf_max_lun;
1881 vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
1882 vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
1883 vn_port->host->max_id = QEDF_MAX_SESSIONS;
1885 rc = scsi_add_host(vn_port->host, &vport->dev);
1887 QEDF_WARN(&base_qedf->dbg_ctx,
1888 "Error adding Scsi_Host rc=0x%x.\n", rc);
1892 /* Set default dev_loss_tmo based on module parameter */
1893 fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
1895 /* Init libfc stuffs */
1896 memcpy(&vn_port->tt, &qedf_lport_template,
1897 sizeof(qedf_lport_template));
1898 fc_exch_init(vn_port);
1899 fc_elsct_init(vn_port);
1900 fc_lport_init(vn_port);
1901 fc_disc_init(vn_port);
1902 fc_disc_config(vn_port, vn_port);
1905 /* Allocate the exchange manager */
1906 shost = vport_to_shost(vport);
1907 n_port = shost_priv(shost);
1908 fc_exch_mgr_list_clone(n_port, vn_port);
1910 /* Set max frame size */
1911 fc_set_mfs(vn_port, QEDF_MFS);
1913 fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
1916 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1918 vn_port->boot_time = jiffies;
1919 fc_fabric_login(vn_port);
1920 fc_vport_setlink(vn_port);
1923 QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
1926 /* Set up debug context for vport */
1927 vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
1928 vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
1933 scsi_host_put(vn_port->host);
1937 static int qedf_vport_destroy(struct fc_vport *vport)
1939 struct Scsi_Host *shost = vport_to_shost(vport);
1940 struct fc_lport *n_port = shost_priv(shost);
1941 struct fc_lport *vn_port = vport->dd_data;
1942 struct qedf_ctx *qedf = lport_priv(vn_port);
1945 QEDF_ERR(NULL, "qedf is NULL.\n");
1949 /* Set unloading bit on vport qedf_ctx to prevent more I/O */
1950 set_bit(QEDF_UNLOADING, &qedf->flags);
1952 mutex_lock(&n_port->lp_mutex);
1953 list_del(&vn_port->list);
1954 mutex_unlock(&n_port->lp_mutex);
1956 fc_fabric_logoff(vn_port);
1957 fc_lport_destroy(vn_port);
1959 /* Detach from scsi-ml */
1960 fc_remove_host(vn_port->host);
1961 scsi_remove_host(vn_port->host);
1964 * Only try to release the exchange manager if the vn_port
1965 * configuration is complete.
1967 if (vn_port->state == LPORT_ST_READY)
1968 fc_exch_mgr_free(vn_port);
1970 /* Free memory used by statistical counters */
1971 fc_lport_free_stats(vn_port);
1973 /* Release Scsi_Host */
1974 scsi_host_put(vn_port->host);
1980 static int qedf_vport_disable(struct fc_vport *vport, bool disable)
1982 struct fc_lport *lport = vport->dd_data;
1985 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1986 fc_fabric_logoff(lport);
1988 lport->boot_time = jiffies;
1989 fc_fabric_login(lport);
1990 fc_vport_setlink(lport);
1996 * During removal we need to wait for all the vports associated with a port
1997 * to be destroyed so we avoid a race condition where libfc is still trying
1998 * to reap vports while the driver remove function has already reaped the
1999 * driver contexts associated with the physical port.
2001 static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
2003 struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
2005 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
2007 while (fc_host->npiv_vports_inuse > 0) {
2008 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
2009 "Waiting for all vports to be reaped.\n");
2015 * qedf_fcoe_reset - Resets the fcoe
2017 * @shost: shost the reset is from
2021 static int qedf_fcoe_reset(struct Scsi_Host *shost)
2023 struct fc_lport *lport = shost_priv(shost);
2025 qedf_ctx_soft_reset(lport);
2029 static void qedf_get_host_port_id(struct Scsi_Host *shost)
2031 struct fc_lport *lport = shost_priv(shost);
2033 fc_host_port_id(shost) = lport->port_id;
2036 static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
2039 struct fc_host_statistics *qedf_stats;
2040 struct fc_lport *lport = shost_priv(shost);
2041 struct qedf_ctx *qedf = lport_priv(lport);
2042 struct qed_fcoe_stats *fw_fcoe_stats;
2044 qedf_stats = fc_get_host_stats(shost);
2046 /* We don't collect offload stats for specific NPIV ports */
2050 fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
2051 if (!fw_fcoe_stats) {
2052 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
2053 "fw_fcoe_stats.\n");
2057 mutex_lock(&qedf->stats_mutex);
2059 /* Query firmware for offload stats */
2060 qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
2063 * The expectation is that we add our offload stats to the stats
2064 * being maintained by libfc each time the fc_get_host_status callback
2065 * is invoked. The additions are not carried over for each call to
2066 * the fc_get_host_stats callback.
2068 qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
2069 fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
2070 fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
2071 qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
2072 fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
2073 fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
2074 qedf_stats->fcp_input_megabytes +=
2075 do_div(fw_fcoe_stats->fcoe_rx_byte_cnt, 1000000);
2076 qedf_stats->fcp_output_megabytes +=
2077 do_div(fw_fcoe_stats->fcoe_tx_byte_cnt, 1000000);
2078 qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
2079 qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
2080 qedf_stats->invalid_crc_count +=
2081 fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
2082 qedf_stats->dumped_frames =
2083 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
2084 qedf_stats->error_frames +=
2085 fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
2086 qedf_stats->fcp_input_requests += qedf->input_requests;
2087 qedf_stats->fcp_output_requests += qedf->output_requests;
2088 qedf_stats->fcp_control_requests += qedf->control_requests;
2089 qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
2090 qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
2092 mutex_unlock(&qedf->stats_mutex);
2093 kfree(fw_fcoe_stats);
2098 static struct fc_function_template qedf_fc_transport_fn = {
2099 .show_host_node_name = 1,
2100 .show_host_port_name = 1,
2101 .show_host_supported_classes = 1,
2102 .show_host_supported_fc4s = 1,
2103 .show_host_active_fc4s = 1,
2104 .show_host_maxframe_size = 1,
2106 .get_host_port_id = qedf_get_host_port_id,
2107 .show_host_port_id = 1,
2108 .show_host_supported_speeds = 1,
2109 .get_host_speed = fc_get_host_speed,
2110 .show_host_speed = 1,
2111 .show_host_port_type = 1,
2112 .get_host_port_state = fc_get_host_port_state,
2113 .show_host_port_state = 1,
2114 .show_host_symbolic_name = 1,
2117 * Tell FC transport to allocate enough space to store the backpointer
2118 * for the associate qedf_rport struct.
2120 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2121 sizeof(struct qedf_rport)),
2122 .show_rport_maxframe_size = 1,
2123 .show_rport_supported_classes = 1,
2124 .show_host_fabric_name = 1,
2125 .show_starget_node_name = 1,
2126 .show_starget_port_name = 1,
2127 .show_starget_port_id = 1,
2128 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2129 .show_rport_dev_loss_tmo = 1,
2130 .get_fc_host_stats = qedf_fc_get_host_stats,
2131 .issue_fc_host_lip = qedf_fcoe_reset,
2132 .vport_create = qedf_vport_create,
2133 .vport_delete = qedf_vport_destroy,
2134 .vport_disable = qedf_vport_disable,
2135 .bsg_request = fc_lport_bsg_request,
2138 static struct fc_function_template qedf_fc_vport_transport_fn = {
2139 .show_host_node_name = 1,
2140 .show_host_port_name = 1,
2141 .show_host_supported_classes = 1,
2142 .show_host_supported_fc4s = 1,
2143 .show_host_active_fc4s = 1,
2144 .show_host_maxframe_size = 1,
2145 .show_host_port_id = 1,
2146 .show_host_supported_speeds = 1,
2147 .get_host_speed = fc_get_host_speed,
2148 .show_host_speed = 1,
2149 .show_host_port_type = 1,
2150 .get_host_port_state = fc_get_host_port_state,
2151 .show_host_port_state = 1,
2152 .show_host_symbolic_name = 1,
2153 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2154 sizeof(struct qedf_rport)),
2155 .show_rport_maxframe_size = 1,
2156 .show_rport_supported_classes = 1,
2157 .show_host_fabric_name = 1,
2158 .show_starget_node_name = 1,
2159 .show_starget_port_name = 1,
2160 .show_starget_port_id = 1,
2161 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2162 .show_rport_dev_loss_tmo = 1,
2163 .get_fc_host_stats = fc_get_host_stats,
2164 .issue_fc_host_lip = qedf_fcoe_reset,
2165 .bsg_request = fc_lport_bsg_request,
2168 static bool qedf_fp_has_work(struct qedf_fastpath *fp)
2170 struct qedf_ctx *qedf = fp->qedf;
2171 struct global_queue *que;
2172 struct qed_sb_info *sb_info = fp->sb_info;
2173 struct status_block_e4 *sb = sb_info->sb_virt;
2176 /* Get the pointer to the global CQ this completion is on */
2177 que = qedf->global_queues[fp->sb_id];
2179 /* Be sure all responses have been written to PI */
2182 /* Get the current firmware producer index */
2183 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2185 return (que->cq_prod_idx != prod_idx);
2189 * Interrupt handler code.
2192 /* Process completion queue and copy CQE contents for deferred processesing
2194 * Return true if we should wake the I/O thread, false if not.
2196 static bool qedf_process_completions(struct qedf_fastpath *fp)
2198 struct qedf_ctx *qedf = fp->qedf;
2199 struct qed_sb_info *sb_info = fp->sb_info;
2200 struct status_block_e4 *sb = sb_info->sb_virt;
2201 struct global_queue *que;
2203 struct fcoe_cqe *cqe;
2204 struct qedf_io_work *io_work;
2205 int num_handled = 0;
2207 struct qedf_ioreq *io_req = NULL;
2212 /* Get the current firmware producer index */
2213 prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
2215 /* Get the pointer to the global CQ this completion is on */
2216 que = qedf->global_queues[fp->sb_id];
2218 /* Calculate the amount of new elements since last processing */
2219 new_cqes = (prod_idx >= que->cq_prod_idx) ?
2220 (prod_idx - que->cq_prod_idx) :
2221 0x10000 - que->cq_prod_idx + prod_idx;
2223 /* Save producer index */
2224 que->cq_prod_idx = prod_idx;
2229 cqe = &que->cq[que->cq_cons_idx];
2231 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2232 FCOE_CQE_CQE_TYPE_MASK;
2235 * Process unsolicited CQEs directly in the interrupt handler
2236 * sine we need the fastpath ID
2238 if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
2239 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
2240 "Unsolicated CQE.\n");
2241 qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
2243 * Don't add a work list item. Increment consumer
2244 * consumer index and move on.
2249 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2250 io_req = &qedf->cmd_mgr->cmds[xid];
2253 * Figure out which percpu thread we should queue this I/O
2257 /* If there is not io_req assocated with this CQE
2258 * just queue it on CPU 0
2263 io_req->int_cpu = smp_processor_id();
2266 io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
2268 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
2269 "work for I/O completion.\n");
2272 memset(io_work, 0, sizeof(struct qedf_io_work));
2274 INIT_WORK(&io_work->work, qedf_fp_io_handler);
2276 /* Copy contents of CQE for deferred processing */
2277 memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
2279 io_work->qedf = fp->qedf;
2280 io_work->fp = NULL; /* Only used for unsolicited frames */
2282 queue_work_on(cpu, qedf_io_wq, &io_work->work);
2286 if (que->cq_cons_idx == fp->cq_num_entries)
2287 que->cq_cons_idx = 0;
2295 /* MSI-X fastpath handler code */
2296 static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
2298 struct qedf_fastpath *fp = dev_id;
2301 QEDF_ERR(NULL, "fp is null.\n");
2305 QEDF_ERR(NULL, "fp->sb_info in null.");
2310 * Disable interrupts for this status block while we process new
2313 qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/);
2316 qedf_process_completions(fp);
2318 if (qedf_fp_has_work(fp) == 0) {
2319 /* Update the sb information */
2320 qed_sb_update_sb_idx(fp->sb_info);
2322 /* Check for more work */
2325 if (qedf_fp_has_work(fp) == 0) {
2326 /* Re-enable interrupts */
2327 qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
2333 /* Do we ever want to break out of above loop? */
2337 /* simd handler for MSI/INTa */
2338 static void qedf_simd_int_handler(void *cookie)
2340 /* Cookie is qedf_ctx struct */
2341 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2343 QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
2346 #define QEDF_SIMD_HANDLER_NUM 0
2347 static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
2353 if (qedf->int_info.msix_cnt) {
2354 for (i = 0; i < qedf->int_info.used_cnt; i++) {
2355 vector_idx = i * qedf->dev_info.common.num_hwfns +
2356 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2357 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2358 "Freeing IRQ #%d vector_idx=%d.\n",
2360 vector = qedf->int_info.msix[vector_idx].vector;
2361 synchronize_irq(vector);
2362 irq_set_affinity_hint(vector, NULL);
2363 irq_set_affinity_notifier(vector, NULL);
2364 free_irq(vector, &qedf->fp_array[i]);
2367 qed_ops->common->simd_handler_clean(qedf->cdev,
2368 QEDF_SIMD_HANDLER_NUM);
2370 qedf->int_info.used_cnt = 0;
2371 qed_ops->common->set_fp_int(qedf->cdev, 0);
2374 static int qedf_request_msix_irq(struct qedf_ctx *qedf)
2380 cpu = cpumask_first(cpu_online_mask);
2381 for (i = 0; i < qedf->num_queues; i++) {
2382 vector_idx = i * qedf->dev_info.common.num_hwfns +
2383 qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
2384 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
2385 "Requesting IRQ #%d vector_idx=%d.\n",
2387 vector = qedf->int_info.msix[vector_idx].vector;
2388 rc = request_irq(vector, qedf_msix_handler, 0, "qedf",
2389 &qedf->fp_array[i]);
2392 QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
2393 qedf_sync_free_irqs(qedf);
2397 qedf->int_info.used_cnt++;
2398 rc = irq_set_affinity_hint(vector, get_cpu_mask(cpu));
2399 cpu = cpumask_next(cpu, cpu_online_mask);
2405 static int qedf_setup_int(struct qedf_ctx *qedf)
2410 * Learn interrupt configuration
2412 rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
2416 rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
2420 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
2421 "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
2424 if (qedf->int_info.msix_cnt)
2425 return qedf_request_msix_irq(qedf);
2427 qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
2428 QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
2429 qedf->int_info.used_cnt = 1;
2431 QEDF_ERR(&qedf->dbg_ctx,
2432 "Cannot load driver due to a lack of MSI-X vectors.\n");
2436 /* Main function for libfc frame reception */
2437 static void qedf_recv_frame(struct qedf_ctx *qedf,
2438 struct sk_buff *skb)
2441 struct fc_lport *lport;
2442 struct fc_frame_header *fh;
2443 struct fcoe_crc_eof crc_eof;
2444 struct fc_frame *fp;
2446 u8 *dest_mac = NULL;
2447 struct fcoe_hdr *hp;
2448 struct qedf_rport *fcport;
2449 struct fc_lport *vn_port;
2452 lport = qedf->lport;
2453 if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
2454 QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
2459 if (skb_is_nonlinear(skb))
2461 mac = eth_hdr(skb)->h_source;
2462 dest_mac = eth_hdr(skb)->h_dest;
2464 /* Pull the header */
2465 hp = (struct fcoe_hdr *)skb->data;
2466 fh = (struct fc_frame_header *) skb_transport_header(skb);
2467 skb_pull(skb, sizeof(struct fcoe_hdr));
2468 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
2470 fp = (struct fc_frame *)skb;
2473 fr_sof(fp) = hp->fcoe_sof;
2474 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
2475 QEDF_INFO(NULL, QEDF_LOG_LL2, "skb_copy_bits failed.\n");
2479 fr_eof(fp) = crc_eof.fcoe_eof;
2480 fr_crc(fp) = crc_eof.fcoe_crc32;
2481 if (pskb_trim(skb, fr_len)) {
2482 QEDF_INFO(NULL, QEDF_LOG_LL2, "pskb_trim failed.\n");
2487 fh = fc_frame_header_get(fp);
2490 * Invalid frame filters.
2493 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
2494 fh->fh_type == FC_TYPE_FCP) {
2495 /* Drop FCP data. We dont this in L2 path */
2499 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
2500 fh->fh_type == FC_TYPE_ELS) {
2501 switch (fc_frame_payload_op(fp)) {
2503 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
2504 /* drop non-FIP LOGO */
2512 if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
2513 /* Drop incoming ABTS */
2518 if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
2519 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2520 "FC frame d_id mismatch with MAC %pM.\n", dest_mac);
2525 if (qedf->ctlr.state) {
2526 if (!ether_addr_equal(mac, qedf->ctlr.dest_addr)) {
2527 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2528 "Wrong source address: mac:%pM dest_addr:%pM.\n",
2529 mac, qedf->ctlr.dest_addr);
2535 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
2538 * If the destination ID from the frame header does not match what we
2539 * have on record for lport and the search for a NPIV port came up
2540 * empty then this is not addressed to our port so simply drop it.
2542 if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
2543 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2544 "Dropping frame due to destination mismatch: lport->port_id=0x%x fh->d_id=0x%x.\n",
2545 lport->port_id, ntoh24(fh->fh_d_id));
2550 f_ctl = ntoh24(fh->fh_f_ctl);
2551 if ((fh->fh_type == FC_TYPE_BLS) && (f_ctl & FC_FC_SEQ_CTX) &&
2552 (f_ctl & FC_FC_EX_CTX)) {
2553 /* Drop incoming ABTS response that has both SEQ/EX CTX set */
2554 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2555 "Dropping ABTS response as both SEQ/EX CTX set.\n");
2561 * If a connection is uploading, drop incoming FCoE frames as there
2562 * is a small window where we could try to return a frame while libfc
2563 * is trying to clean things up.
2566 /* Get fcport associated with d_id if it exists */
2567 fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
2569 if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
2571 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
2572 "Connection uploading, dropping fp=%p.\n", fp);
2577 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
2578 "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
2579 ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
2581 if (qedf_dump_frames)
2582 print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
2583 1, skb->data, skb->len, false);
2584 fc_exch_recv(lport, fp);
2587 static void qedf_ll2_process_skb(struct work_struct *work)
2589 struct qedf_skb_work *skb_work =
2590 container_of(work, struct qedf_skb_work, work);
2591 struct qedf_ctx *qedf = skb_work->qedf;
2592 struct sk_buff *skb = skb_work->skb;
2596 QEDF_ERR(NULL, "qedf is NULL\n");
2600 eh = (struct ethhdr *)skb->data;
2602 /* Undo VLAN encapsulation */
2603 if (eh->h_proto == htons(ETH_P_8021Q)) {
2604 memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
2605 eh = skb_pull(skb, VLAN_HLEN);
2606 skb_reset_mac_header(skb);
2610 * Process either a FIP frame or FCoE frame based on the
2611 * protocol value. If it's not either just drop the
2614 if (eh->h_proto == htons(ETH_P_FIP)) {
2615 qedf_fip_recv(qedf, skb);
2617 } else if (eh->h_proto == htons(ETH_P_FCOE)) {
2618 __skb_pull(skb, ETH_HLEN);
2619 qedf_recv_frame(qedf, skb);
2631 static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
2634 struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
2635 struct qedf_skb_work *skb_work;
2637 if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
2638 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_LL2,
2639 "Dropping frame as link state is down.\n");
2644 skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
2646 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
2647 "dropping frame.\n");
2652 INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
2653 skb_work->skb = skb;
2654 skb_work->qedf = qedf;
2655 queue_work(qedf->ll2_recv_wq, &skb_work->work);
2660 static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
2661 .rx_cb = qedf_ll2_rx,
2665 /* Main thread to process I/O completions */
2666 void qedf_fp_io_handler(struct work_struct *work)
2668 struct qedf_io_work *io_work =
2669 container_of(work, struct qedf_io_work, work);
2673 * Deferred part of unsolicited CQE sends
2676 comp_type = (io_work->cqe.cqe_data >>
2677 FCOE_CQE_CQE_TYPE_SHIFT) &
2678 FCOE_CQE_CQE_TYPE_MASK;
2679 if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
2681 fc_exch_recv(io_work->qedf->lport, io_work->fp);
2683 qedf_process_cqe(io_work->qedf, &io_work->cqe);
2688 static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
2689 struct qed_sb_info *sb_info, u16 sb_id)
2691 struct status_block_e4 *sb_virt;
2695 sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
2696 sizeof(struct status_block_e4), &sb_phys, GFP_KERNEL);
2699 QEDF_ERR(&qedf->dbg_ctx,
2700 "Status block allocation failed for id = %d.\n",
2705 ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
2706 sb_id, QED_SB_TYPE_STORAGE);
2709 QEDF_ERR(&qedf->dbg_ctx,
2710 "Status block initialization failed (0x%x) for id = %d.\n",
2718 static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
2720 if (sb_info->sb_virt)
2721 dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
2722 (void *)sb_info->sb_virt, sb_info->sb_phys);
2725 static void qedf_destroy_sb(struct qedf_ctx *qedf)
2728 struct qedf_fastpath *fp = NULL;
2730 for (id = 0; id < qedf->num_queues; id++) {
2731 fp = &(qedf->fp_array[id]);
2732 if (fp->sb_id == QEDF_SB_ID_NULL)
2734 qedf_free_sb(qedf, fp->sb_info);
2737 kfree(qedf->fp_array);
2740 static int qedf_prepare_sb(struct qedf_ctx *qedf)
2743 struct qedf_fastpath *fp;
2747 kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
2750 if (!qedf->fp_array) {
2751 QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
2756 for (id = 0; id < qedf->num_queues; id++) {
2757 fp = &(qedf->fp_array[id]);
2758 fp->sb_id = QEDF_SB_ID_NULL;
2759 fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
2761 QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
2762 "allocation failed.\n");
2765 ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
2767 QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
2768 "initialization failed.\n");
2773 fp->cq_num_entries =
2774 qedf->global_queues[id]->cq_mem_size /
2775 sizeof(struct fcoe_cqe);
2781 void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
2784 struct qedf_ioreq *io_req;
2785 struct qedf_rport *fcport;
2788 comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
2789 FCOE_CQE_CQE_TYPE_MASK;
2791 xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
2792 io_req = &qedf->cmd_mgr->cmds[xid];
2794 /* Completion not for a valid I/O anymore so just return */
2796 QEDF_ERR(&qedf->dbg_ctx,
2797 "io_req is NULL for xid=0x%x.\n", xid);
2801 fcport = io_req->fcport;
2803 if (fcport == NULL) {
2804 QEDF_ERR(&qedf->dbg_ctx,
2805 "fcport is NULL for xid=0x%x io_req=%p.\n",
2811 * Check that fcport is offloaded. If it isn't then the spinlock
2812 * isn't valid and shouldn't be taken. We should just return.
2814 if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
2815 QEDF_ERR(&qedf->dbg_ctx,
2816 "Session not offloaded yet, fcport = %p.\n", fcport);
2821 switch (comp_type) {
2822 case FCOE_GOOD_COMPLETION_CQE_TYPE:
2823 atomic_inc(&fcport->free_sqes);
2824 switch (io_req->cmd_type) {
2826 qedf_scsi_completion(qedf, cqe, io_req);
2829 qedf_process_els_compl(qedf, cqe, io_req);
2831 case QEDF_TASK_MGMT_CMD:
2832 qedf_process_tmf_compl(qedf, cqe, io_req);
2834 case QEDF_SEQ_CLEANUP:
2835 qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
2839 case FCOE_ERROR_DETECTION_CQE_TYPE:
2840 atomic_inc(&fcport->free_sqes);
2841 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2842 "Error detect CQE.\n");
2843 qedf_process_error_detect(qedf, cqe, io_req);
2845 case FCOE_EXCH_CLEANUP_CQE_TYPE:
2846 atomic_inc(&fcport->free_sqes);
2847 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2849 qedf_process_cleanup_compl(qedf, cqe, io_req);
2851 case FCOE_ABTS_CQE_TYPE:
2852 atomic_inc(&fcport->free_sqes);
2853 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2855 qedf_process_abts_compl(qedf, cqe, io_req);
2857 case FCOE_DUMMY_CQE_TYPE:
2858 atomic_inc(&fcport->free_sqes);
2859 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2862 case FCOE_LOCAL_COMP_CQE_TYPE:
2863 atomic_inc(&fcport->free_sqes);
2864 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2865 "Local completion CQE.\n");
2867 case FCOE_WARNING_CQE_TYPE:
2868 atomic_inc(&fcport->free_sqes);
2869 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2871 qedf_process_warning_compl(qedf, cqe, io_req);
2873 case MAX_FCOE_CQE_TYPE:
2874 atomic_inc(&fcport->free_sqes);
2875 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2879 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
2885 static void qedf_free_bdq(struct qedf_ctx *qedf)
2889 if (qedf->bdq_pbl_list)
2890 dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
2891 qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
2894 dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
2895 qedf->bdq_pbl, qedf->bdq_pbl_dma);
2897 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2898 if (qedf->bdq[i].buf_addr) {
2899 dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
2900 qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
2905 static void qedf_free_global_queues(struct qedf_ctx *qedf)
2908 struct global_queue **gl = qedf->global_queues;
2910 for (i = 0; i < qedf->num_queues; i++) {
2915 dma_free_coherent(&qedf->pdev->dev,
2916 gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
2918 dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
2919 gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
2924 qedf_free_bdq(qedf);
2927 static int qedf_alloc_bdq(struct qedf_ctx *qedf)
2930 struct scsi_bd *pbl;
2934 /* Alloc dma memory for BDQ buffers */
2935 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2936 qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
2937 QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
2938 if (!qedf->bdq[i].buf_addr) {
2939 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
2945 /* Alloc dma memory for BDQ page buffer list */
2946 qedf->bdq_pbl_mem_size =
2947 QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
2948 qedf->bdq_pbl_mem_size =
2949 ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
2951 qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
2952 qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
2953 if (!qedf->bdq_pbl) {
2954 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
2958 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
2959 "BDQ PBL addr=0x%p dma=%pad\n",
2960 qedf->bdq_pbl, &qedf->bdq_pbl_dma);
2963 * Populate BDQ PBL with physical and virtual address of individual
2966 pbl = (struct scsi_bd *)qedf->bdq_pbl;
2967 for (i = 0; i < QEDF_BDQ_SIZE; i++) {
2968 pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
2969 pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
2970 pbl->opaque.fcoe_opaque.hi = 0;
2971 /* Opaque lo data is an index into the BDQ array */
2972 pbl->opaque.fcoe_opaque.lo = cpu_to_le32(i);
2976 /* Allocate list of PBL pages */
2977 qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
2979 &qedf->bdq_pbl_list_dma,
2981 if (!qedf->bdq_pbl_list) {
2982 QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL pages.\n");
2987 * Now populate PBL list with pages that contain pointers to the
2988 * individual buffers.
2990 qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
2992 list = (u64 *)qedf->bdq_pbl_list;
2993 page = qedf->bdq_pbl_list_dma;
2994 for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
2995 *list = qedf->bdq_pbl_dma;
2997 page += QEDF_PAGE_SIZE;
3003 static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
3012 /* Allocate and map CQs, RQs */
3014 * Number of global queues (CQ / RQ). This should
3015 * be <= number of available MSIX vectors for the PF
3017 if (!qedf->num_queues) {
3018 QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
3023 * Make sure we allocated the PBL that will contain the physical
3024 * addresses of our queues
3026 if (!qedf->p_cpuq) {
3028 QEDF_ERR(&qedf->dbg_ctx, "p_cpuq is NULL.\n");
3029 goto mem_alloc_failure;
3032 qedf->global_queues = kzalloc((sizeof(struct global_queue *)
3033 * qedf->num_queues), GFP_KERNEL);
3034 if (!qedf->global_queues) {
3035 QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
3036 "queues array ptr memory\n");
3039 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3040 "qedf->global_queues=%p.\n", qedf->global_queues);
3042 /* Allocate DMA coherent buffers for BDQ */
3043 rc = qedf_alloc_bdq(qedf);
3045 QEDF_ERR(&qedf->dbg_ctx, "Unable to allocate bdq.\n");
3046 goto mem_alloc_failure;
3049 /* Allocate a CQ and an associated PBL for each MSI-X vector */
3050 for (i = 0; i < qedf->num_queues; i++) {
3051 qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
3053 if (!qedf->global_queues[i]) {
3054 QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocate "
3055 "global queue %d.\n", i);
3057 goto mem_alloc_failure;
3060 qedf->global_queues[i]->cq_mem_size =
3061 FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3062 qedf->global_queues[i]->cq_mem_size =
3063 ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
3065 qedf->global_queues[i]->cq_pbl_size =
3066 (qedf->global_queues[i]->cq_mem_size /
3067 PAGE_SIZE) * sizeof(void *);
3068 qedf->global_queues[i]->cq_pbl_size =
3069 ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
3071 qedf->global_queues[i]->cq =
3072 dma_alloc_coherent(&qedf->pdev->dev,
3073 qedf->global_queues[i]->cq_mem_size,
3074 &qedf->global_queues[i]->cq_dma,
3077 if (!qedf->global_queues[i]->cq) {
3078 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq.\n");
3080 goto mem_alloc_failure;
3083 qedf->global_queues[i]->cq_pbl =
3084 dma_alloc_coherent(&qedf->pdev->dev,
3085 qedf->global_queues[i]->cq_pbl_size,
3086 &qedf->global_queues[i]->cq_pbl_dma,
3089 if (!qedf->global_queues[i]->cq_pbl) {
3090 QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate cq PBL.\n");
3092 goto mem_alloc_failure;
3096 num_pages = qedf->global_queues[i]->cq_mem_size /
3098 page = qedf->global_queues[i]->cq_dma;
3099 pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
3101 while (num_pages--) {
3102 *pbl = U64_LO(page);
3104 *pbl = U64_HI(page);
3106 page += QEDF_PAGE_SIZE;
3108 /* Set the initial consumer index for cq */
3109 qedf->global_queues[i]->cq_cons_idx = 0;
3112 list = (u32 *)qedf->p_cpuq;
3115 * The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer,
3116 * CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points
3117 * to the physical address which contains an array of pointers to
3118 * the physical addresses of the specific queue pages.
3120 for (i = 0; i < qedf->num_queues; i++) {
3121 *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
3123 *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
3134 qedf_free_global_queues(qedf);
3138 static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
3140 u8 sq_num_pbl_pages;
3147 * The number of completion queues/fastpath interrupts/status blocks
3148 * we allocation is the minimum off:
3151 * Number allocated by qed for our PCI function
3153 qedf->num_queues = MIN_NUM_CPUS_MSIX(qedf);
3155 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
3158 qedf->p_cpuq = dma_alloc_coherent(&qedf->pdev->dev,
3159 qedf->num_queues * sizeof(struct qedf_glbl_q_params),
3160 &qedf->hw_p_cpuq, GFP_KERNEL);
3162 if (!qedf->p_cpuq) {
3163 QEDF_ERR(&(qedf->dbg_ctx), "dma_alloc_coherent failed.\n");
3167 rval = qedf_alloc_global_queues(qedf);
3169 QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
3174 /* Calculate SQ PBL size in the same manner as in qedf_sq_alloc() */
3175 sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
3176 sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
3177 sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
3179 /* Calculate CQ num entries */
3180 cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
3181 cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
3182 cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
3184 memset(&(qedf->pf_params), 0, sizeof(qedf->pf_params));
3186 /* Setup the value for fcoe PF */
3187 qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
3188 qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
3189 qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
3190 (u64)qedf->hw_p_cpuq;
3191 qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
3193 qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
3195 qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
3196 qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
3198 /* log_page_size: 12 for 4KB pages */
3199 qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
3201 qedf->pf_params.fcoe_pf_params.mtu = 9000;
3202 qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
3203 qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
3205 /* BDQ address and size */
3206 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
3207 qedf->bdq_pbl_list_dma;
3208 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
3209 qedf->bdq_pbl_list_num_entries;
3210 qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
3212 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3213 "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
3215 qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
3216 qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
3218 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3219 "cq_num_entries=%d.\n",
3220 qedf->pf_params.fcoe_pf_params.cq_num_entries);
3225 /* Free DMA coherent memory for array of queue pointers we pass to qed */
3226 static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
3231 size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
3232 dma_free_coherent(&qedf->pdev->dev, size, qedf->p_cpuq,
3236 qedf_free_global_queues(qedf);
3238 kfree(qedf->global_queues);
3242 * PCI driver functions
3245 static const struct pci_device_id qedf_pci_tbl[] = {
3246 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
3247 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
3250 MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
3252 static struct pci_driver qedf_pci_driver = {
3253 .name = QEDF_MODULE_NAME,
3254 .id_table = qedf_pci_tbl,
3255 .probe = qedf_probe,
3256 .remove = qedf_remove,
3257 .shutdown = qedf_shutdown,
3260 static int __qedf_probe(struct pci_dev *pdev, int mode)
3263 struct fc_lport *lport;
3264 struct qedf_ctx *qedf = NULL;
3265 struct Scsi_Host *host;
3267 struct qed_ll2_params params;
3269 struct qed_link_params link_params;
3271 void *task_start, *task_end;
3272 struct qed_slowpath_params slowpath_params;
3273 struct qed_probe_params qed_params;
3277 * When doing error recovery we didn't reap the lport so don't try
3281 if (mode == QEDF_MODE_RECOVERY)
3284 if (mode != QEDF_MODE_RECOVERY) {
3285 lport = libfc_host_alloc(&qedf_host_template,
3286 sizeof(struct qedf_ctx));
3289 QEDF_ERR(NULL, "Could not allocate lport.\n");
3294 fc_disc_init(lport);
3296 /* Initialize qedf_ctx */
3297 qedf = lport_priv(lport);
3298 set_bit(QEDF_PROBING, &qedf->flags);
3299 qedf->lport = lport;
3300 qedf->ctlr.lp = lport;
3302 qedf->dbg_ctx.pdev = pdev;
3303 qedf->dbg_ctx.host_no = lport->host->host_no;
3304 spin_lock_init(&qedf->hba_lock);
3305 INIT_LIST_HEAD(&qedf->fcports);
3306 qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
3307 atomic_set(&qedf->num_offloads, 0);
3308 qedf->stop_io_on_error = false;
3309 pci_set_drvdata(pdev, qedf);
3310 init_completion(&qedf->fipvlan_compl);
3311 mutex_init(&qedf->stats_mutex);
3312 mutex_init(&qedf->flush_mutex);
3313 qedf->flogi_pending = 0;
3315 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
3316 "QLogic FastLinQ FCoE Module qedf %s, "
3317 "FW %d.%d.%d.%d\n", QEDF_VERSION,
3318 FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
3319 FW_ENGINEERING_VERSION);
3321 /* Init pointers during recovery */
3322 qedf = pci_get_drvdata(pdev);
3323 set_bit(QEDF_PROBING, &qedf->flags);
3324 lport = qedf->lport;
3327 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe started.\n");
3331 /* Allocate mempool for qedf_io_work structs */
3332 qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
3333 qedf_io_work_cache);
3334 if (qedf->io_mempool == NULL) {
3335 QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
3338 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
3341 sprintf(host_buf, "qedf_%u_link",
3342 qedf->lport->host->host_no);
3343 qedf->link_update_wq = create_workqueue(host_buf);
3344 INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
3345 INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
3346 INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump);
3347 INIT_DELAYED_WORK(&qedf->stag_work, qedf_stag_change_work);
3348 qedf->fipvlan_retries = qedf_fipvlan_retries;
3349 /* Set a default prio in case DCBX doesn't converge */
3350 if (qedf_default_prio > -1) {
3352 * This is the case where we pass a modparam in so we want to
3353 * honor it even if dcbx doesn't converge.
3355 qedf->prio = qedf_default_prio;
3357 qedf->prio = QEDF_DEFAULT_PRIO;
3360 * Common probe. Takes care of basic hardware init and pci_*
3363 memset(&qed_params, 0, sizeof(qed_params));
3364 qed_params.protocol = QED_PROTOCOL_FCOE;
3365 qed_params.dp_module = qedf_dp_module;
3366 qed_params.dp_level = qedf_dp_level;
3367 qed_params.is_vf = is_vf;
3368 qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
3370 if ((mode == QEDF_MODE_RECOVERY) && retry_cnt) {
3371 QEDF_ERR(&qedf->dbg_ctx,
3372 "Retry %d initialize hardware\n", retry_cnt);
3376 QEDF_ERR(&qedf->dbg_ctx, "common probe failed.\n");
3381 /* Learn information crucial for qedf to progress */
3382 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3384 QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
3388 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
3389 "dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
3390 qedf->dev_info.common.num_hwfns,
3391 qed_ops->common->get_affin_hwfn_idx(qedf->cdev));
3393 /* queue allocation code should come here
3396 * status block allocation
3397 * interrupt registration (to get min number of queues)
3399 * qed_sp_fcoe_func_start
3401 rc = qedf_set_fcoe_pf_param(qedf);
3403 QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
3406 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3408 /* Learn information crucial for qedf to progress */
3409 rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
3411 QEDF_ERR(&qedf->dbg_ctx, "Failed to fill dev info.\n");
3415 if (mode != QEDF_MODE_RECOVERY) {
3416 qedf->devlink = qed_ops->common->devlink_register(qedf->cdev);
3417 if (IS_ERR(qedf->devlink)) {
3418 QEDF_ERR(&qedf->dbg_ctx, "Cannot register devlink\n");
3419 qedf->devlink = NULL;
3423 /* Record BDQ producer doorbell addresses */
3424 qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
3425 qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
3426 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3427 "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
3428 qedf->bdq_secondary_prod);
3430 qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
3432 rc = qedf_prepare_sb(qedf);
3435 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3439 /* Start the Slowpath-process */
3440 slowpath_params.int_mode = QED_INT_MODE_MSIX;
3441 slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
3442 slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
3443 slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
3444 slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
3445 strncpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
3446 rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
3448 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
3453 * update_pf_params needs to be called before and after slowpath
3456 qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
3458 /* Setup interrupts */
3459 rc = qedf_setup_int(qedf);
3461 QEDF_ERR(&qedf->dbg_ctx, "Setup interrupts failed.\n");
3465 rc = qed_ops->start(qedf->cdev, &qedf->tasks);
3467 QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
3470 task_start = qedf_get_task_mem(&qedf->tasks, 0);
3471 task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
3472 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
3473 "end=%p block_size=%u.\n", task_start, task_end,
3477 * We need to write the number of BDs in the BDQ we've preallocated so
3478 * the f/w will do a prefetch and we'll get an unsolicited CQE when a
3481 qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
3482 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3483 "Writing %d to primary and secondary BDQ doorbell registers.\n",
3484 qedf->bdq_prod_idx);
3485 writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
3486 readw(qedf->bdq_primary_prod);
3487 writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
3488 readw(qedf->bdq_secondary_prod);
3490 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3492 /* Now that the dev_info struct has been filled in set the MAC
3495 ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
3496 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
3500 * Set the WWNN and WWPN in the following way:
3502 * If the info we get from qed is non-zero then use that to set the
3503 * WWPN and WWNN. Otherwise fall back to use fcoe_wwn_from_mac() based
3504 * on the MAC address.
3506 if (qedf->dev_info.wwnn != 0 && qedf->dev_info.wwpn != 0) {
3507 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3508 "Setting WWPN and WWNN from qed dev_info.\n");
3509 qedf->wwnn = qedf->dev_info.wwnn;
3510 qedf->wwpn = qedf->dev_info.wwpn;
3512 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3513 "Setting WWPN and WWNN using fcoe_wwn_from_mac().\n");
3514 qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
3515 qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
3517 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
3518 "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
3520 sprintf(host_buf, "host_%d", host->host_no);
3521 qed_ops->common->set_name(qedf->cdev, host_buf);
3523 /* Allocate cmd mgr */
3524 qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
3525 if (!qedf->cmd_mgr) {
3526 QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
3531 if (mode != QEDF_MODE_RECOVERY) {
3532 host->transportt = qedf_fc_transport_template;
3533 host->max_lun = qedf_max_lun;
3534 host->max_cmd_len = QEDF_MAX_CDB_LEN;
3535 host->max_id = QEDF_MAX_SESSIONS;
3536 host->can_queue = FCOE_PARAMS_NUM_TASKS;
3537 rc = scsi_add_host(host, &pdev->dev);
3539 QEDF_WARN(&qedf->dbg_ctx,
3540 "Error adding Scsi_Host rc=0x%x.\n", rc);
3545 memset(¶ms, 0, sizeof(params));
3546 params.mtu = QEDF_LL2_BUF_SIZE;
3547 ether_addr_copy(params.ll2_mac_address, qedf->mac);
3549 /* Start LL2 processing thread */
3550 snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
3552 create_workqueue(host_buf);
3553 if (!qedf->ll2_recv_wq) {
3554 QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
3559 #ifdef CONFIG_DEBUG_FS
3560 qedf_dbg_host_init(&(qedf->dbg_ctx), qedf_debugfs_ops,
3565 qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
3566 rc = qed_ops->ll2->start(qedf->cdev, ¶ms);
3568 QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
3571 set_bit(QEDF_LL2_STARTED, &qedf->flags);
3573 /* Set initial FIP/FCoE VLAN to NULL */
3577 * No need to setup fcoe_ctlr or fc_lport objects during recovery since
3578 * they were not reaped during the unload process.
3580 if (mode != QEDF_MODE_RECOVERY) {
3581 /* Setup imbedded fcoe controller */
3582 qedf_fcoe_ctlr_setup(qedf);
3585 rc = qedf_lport_setup(qedf);
3587 QEDF_ERR(&(qedf->dbg_ctx),
3588 "qedf_lport_setup failed.\n");
3593 sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
3594 qedf->timer_work_queue =
3595 create_workqueue(host_buf);
3596 if (!qedf->timer_work_queue) {
3597 QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
3603 /* DPC workqueue is not reaped during recovery unload */
3604 if (mode != QEDF_MODE_RECOVERY) {
3605 sprintf(host_buf, "qedf_%u_dpc",
3606 qedf->lport->host->host_no);
3607 qedf->dpc_wq = create_workqueue(host_buf);
3609 INIT_DELAYED_WORK(&qedf->recovery_work, qedf_recovery_handler);
3612 * GRC dump and sysfs parameters are not reaped during the recovery
3615 if (mode != QEDF_MODE_RECOVERY) {
3616 qedf->grcdump_size =
3617 qed_ops->common->dbg_all_data_size(qedf->cdev);
3618 if (qedf->grcdump_size) {
3619 rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
3620 qedf->grcdump_size);
3622 QEDF_ERR(&(qedf->dbg_ctx),
3623 "GRC Dump buffer alloc failed.\n");
3624 qedf->grcdump = NULL;
3627 QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
3628 "grcdump: addr=%p, size=%u.\n",
3629 qedf->grcdump, qedf->grcdump_size);
3631 qedf_create_sysfs_ctx_attr(qedf);
3633 /* Initialize I/O tracing for this adapter */
3634 spin_lock_init(&qedf->io_trace_lock);
3635 qedf->io_trace_idx = 0;
3638 init_completion(&qedf->flogi_compl);
3640 status = qed_ops->common->update_drv_state(qedf->cdev, true);
3642 QEDF_ERR(&(qedf->dbg_ctx),
3643 "Failed to send drv state to MFW.\n");
3645 memset(&link_params, 0, sizeof(struct qed_link_params));
3646 link_params.link_up = true;
3647 status = qed_ops->common->set_link(qedf->cdev, &link_params);
3649 QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
3651 /* Start/restart discovery */
3652 if (mode == QEDF_MODE_RECOVERY)
3653 fcoe_ctlr_link_up(&qedf->ctlr);
3655 fc_fabric_login(lport);
3657 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
3659 clear_bit(QEDF_PROBING, &qedf->flags);
3665 if (qedf->ll2_recv_wq)
3666 destroy_workqueue(qedf->ll2_recv_wq);
3667 fc_remove_host(qedf->lport->host);
3668 scsi_remove_host(qedf->lport->host);
3669 #ifdef CONFIG_DEBUG_FS
3670 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3673 qedf_cmd_mgr_free(qedf->cmd_mgr);
3675 qed_ops->stop(qedf->cdev);
3677 qedf_free_fcoe_pf_param(qedf);
3678 qedf_sync_free_irqs(qedf);
3680 qed_ops->common->slowpath_stop(qedf->cdev);
3682 qed_ops->common->remove(qedf->cdev);
3684 scsi_host_put(lport->host);
3687 QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
3689 clear_bit(QEDF_PROBING, &qedf->flags);
3694 static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
3696 return __qedf_probe(pdev, QEDF_MODE_NORMAL);
3699 static void __qedf_remove(struct pci_dev *pdev, int mode)
3701 struct qedf_ctx *qedf;
3705 QEDF_ERR(NULL, "pdev is NULL.\n");
3709 qedf = pci_get_drvdata(pdev);
3712 * Prevent race where we're in board disable work and then try to
3715 if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
3716 QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
3720 if (mode != QEDF_MODE_RECOVERY)
3721 set_bit(QEDF_UNLOADING, &qedf->flags);
3723 /* Logoff the fabric to upload all connections */
3724 if (mode == QEDF_MODE_RECOVERY)
3725 fcoe_ctlr_link_down(&qedf->ctlr);
3727 fc_fabric_logoff(qedf->lport);
3729 if (!qedf_wait_for_upload(qedf))
3730 QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n");
3732 #ifdef CONFIG_DEBUG_FS
3733 qedf_dbg_host_exit(&(qedf->dbg_ctx));
3736 /* Stop any link update handling */
3737 cancel_delayed_work_sync(&qedf->link_update);
3738 destroy_workqueue(qedf->link_update_wq);
3739 qedf->link_update_wq = NULL;
3741 if (qedf->timer_work_queue)
3742 destroy_workqueue(qedf->timer_work_queue);
3745 clear_bit(QEDF_LL2_STARTED, &qedf->flags);
3746 qed_ops->ll2->stop(qedf->cdev);
3747 if (qedf->ll2_recv_wq)
3748 destroy_workqueue(qedf->ll2_recv_wq);
3751 qedf_sync_free_irqs(qedf);
3752 qedf_destroy_sb(qedf);
3755 * During recovery don't destroy OS constructs that represent the
3758 if (mode != QEDF_MODE_RECOVERY) {
3759 qedf_free_grc_dump_buf(&qedf->grcdump);
3760 qedf_remove_sysfs_ctx_attr(qedf);
3762 /* Remove all SCSI/libfc/libfcoe structures */
3763 fcoe_ctlr_destroy(&qedf->ctlr);
3764 fc_lport_destroy(qedf->lport);
3765 fc_remove_host(qedf->lport->host);
3766 scsi_remove_host(qedf->lport->host);
3769 qedf_cmd_mgr_free(qedf->cmd_mgr);
3771 if (mode != QEDF_MODE_RECOVERY) {
3772 fc_exch_mgr_free(qedf->lport);
3773 fc_lport_free_stats(qedf->lport);
3775 /* Wait for all vports to be reaped */
3776 qedf_wait_for_vport_destroy(qedf);
3780 * Now that all connections have been uploaded we can stop the
3781 * rest of the qed operations
3783 qed_ops->stop(qedf->cdev);
3785 if (mode != QEDF_MODE_RECOVERY) {
3787 /* Stop general DPC handling */
3788 destroy_workqueue(qedf->dpc_wq);
3789 qedf->dpc_wq = NULL;
3793 /* Final shutdown for the board */
3794 qedf_free_fcoe_pf_param(qedf);
3795 if (mode != QEDF_MODE_RECOVERY) {
3796 qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
3797 pci_set_drvdata(pdev, NULL);
3800 rc = qed_ops->common->update_drv_state(qedf->cdev, false);
3802 QEDF_ERR(&(qedf->dbg_ctx),
3803 "Failed to send drv state to MFW.\n");
3805 if (mode != QEDF_MODE_RECOVERY && qedf->devlink) {
3806 qed_ops->common->devlink_unregister(qedf->devlink);
3807 qedf->devlink = NULL;
3810 qed_ops->common->slowpath_stop(qedf->cdev);
3811 qed_ops->common->remove(qedf->cdev);
3813 mempool_destroy(qedf->io_mempool);
3815 /* Only reap the Scsi_host on a real removal */
3816 if (mode != QEDF_MODE_RECOVERY)
3817 scsi_host_put(qedf->lport->host);
3820 static void qedf_remove(struct pci_dev *pdev)
3822 /* Check to make sure this function wasn't already disabled */
3823 if (!atomic_read(&pdev->enable_cnt))
3826 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3829 void qedf_wq_grcdump(struct work_struct *work)
3831 struct qedf_ctx *qedf =
3832 container_of(work, struct qedf_ctx, grcdump_work.work);
3834 QEDF_ERR(&(qedf->dbg_ctx), "Collecting GRC dump.\n");
3835 qedf_capture_grc_dump(qedf);
3838 void qedf_schedule_hw_err_handler(void *dev, enum qed_hw_err_type err_type)
3840 struct qedf_ctx *qedf = dev;
3842 QEDF_ERR(&(qedf->dbg_ctx),
3843 "Hardware error handler scheduled, event=%d.\n",
3846 if (test_bit(QEDF_IN_RECOVERY, &qedf->flags)) {
3847 QEDF_ERR(&(qedf->dbg_ctx),
3848 "Already in recovery, not scheduling board disable work.\n");
3853 case QED_HW_ERR_FAN_FAIL:
3854 schedule_delayed_work(&qedf->board_disable_work, 0);
3856 case QED_HW_ERR_MFW_RESP_FAIL:
3857 case QED_HW_ERR_HW_ATTN:
3858 case QED_HW_ERR_DMAE_FAIL:
3859 case QED_HW_ERR_FW_ASSERT:
3860 /* Prevent HW attentions from being reasserted */
3861 qed_ops->common->attn_clr_enable(qedf->cdev, true);
3863 case QED_HW_ERR_RAMROD_FAIL:
3864 /* Prevent HW attentions from being reasserted */
3865 qed_ops->common->attn_clr_enable(qedf->cdev, true);
3867 if (qedf_enable_recovery && qedf->devlink)
3868 qed_ops->common->report_fatal_error(qedf->devlink,
3878 * Protocol TLV handler
3880 void qedf_get_protocol_tlv_data(void *dev, void *data)
3882 struct qedf_ctx *qedf = dev;
3883 struct qed_mfw_tlv_fcoe *fcoe = data;
3884 struct fc_lport *lport;
3885 struct Scsi_Host *host;
3886 struct fc_host_attrs *fc_host;
3887 struct fc_host_statistics *hst;
3890 QEDF_ERR(NULL, "qedf is null.\n");
3894 if (test_bit(QEDF_PROBING, &qedf->flags)) {
3895 QEDF_ERR(&qedf->dbg_ctx, "Function is still probing.\n");
3899 lport = qedf->lport;
3901 fc_host = shost_to_fc_host(host);
3903 /* Force a refresh of the fc_host stats including offload stats */
3904 hst = qedf_fc_get_host_stats(host);
3906 fcoe->qos_pri_set = true;
3907 fcoe->qos_pri = 3; /* Hard coded to 3 in driver */
3909 fcoe->ra_tov_set = true;
3910 fcoe->ra_tov = lport->r_a_tov;
3912 fcoe->ed_tov_set = true;
3913 fcoe->ed_tov = lport->e_d_tov;
3915 fcoe->npiv_state_set = true;
3916 fcoe->npiv_state = 1; /* NPIV always enabled */
3918 fcoe->num_npiv_ids_set = true;
3919 fcoe->num_npiv_ids = fc_host->npiv_vports_inuse;
3921 /* Certain attributes we only want to set if we've selected an FCF */
3922 if (qedf->ctlr.sel_fcf) {
3923 fcoe->switch_name_set = true;
3924 u64_to_wwn(qedf->ctlr.sel_fcf->switch_name, fcoe->switch_name);
3927 fcoe->port_state_set = true;
3928 /* For qedf we're either link down or fabric attach */
3930 fcoe->port_state = QED_MFW_TLV_PORT_STATE_FABRIC;
3932 fcoe->port_state = QED_MFW_TLV_PORT_STATE_OFFLINE;
3934 fcoe->link_failures_set = true;
3935 fcoe->link_failures = (u16)hst->link_failure_count;
3937 fcoe->fcoe_txq_depth_set = true;
3938 fcoe->fcoe_rxq_depth_set = true;
3939 fcoe->fcoe_rxq_depth = FCOE_PARAMS_NUM_TASKS;
3940 fcoe->fcoe_txq_depth = FCOE_PARAMS_NUM_TASKS;
3942 fcoe->fcoe_rx_frames_set = true;
3943 fcoe->fcoe_rx_frames = hst->rx_frames;
3945 fcoe->fcoe_tx_frames_set = true;
3946 fcoe->fcoe_tx_frames = hst->tx_frames;
3948 fcoe->fcoe_rx_bytes_set = true;
3949 fcoe->fcoe_rx_bytes = hst->fcp_input_megabytes * 1000000;
3951 fcoe->fcoe_tx_bytes_set = true;
3952 fcoe->fcoe_tx_bytes = hst->fcp_output_megabytes * 1000000;
3954 fcoe->crc_count_set = true;
3955 fcoe->crc_count = hst->invalid_crc_count;
3957 fcoe->tx_abts_set = true;
3958 fcoe->tx_abts = hst->fcp_packet_aborts;
3960 fcoe->tx_lun_rst_set = true;
3961 fcoe->tx_lun_rst = qedf->lun_resets;
3963 fcoe->abort_task_sets_set = true;
3964 fcoe->abort_task_sets = qedf->packet_aborts;
3966 fcoe->scsi_busy_set = true;
3967 fcoe->scsi_busy = qedf->busy;
3969 fcoe->scsi_tsk_full_set = true;
3970 fcoe->scsi_tsk_full = qedf->task_set_fulls;
3973 /* Deferred work function to perform soft context reset on STAG change */
3974 void qedf_stag_change_work(struct work_struct *work)
3976 struct qedf_ctx *qedf =
3977 container_of(work, struct qedf_ctx, stag_work.work);
3979 QEDF_ERR(&qedf->dbg_ctx, "Performing software context reset.\n");
3980 qedf_ctx_soft_reset(qedf->lport);
3983 static void qedf_shutdown(struct pci_dev *pdev)
3985 __qedf_remove(pdev, QEDF_MODE_NORMAL);
3989 * Recovery handler code
3991 static void qedf_schedule_recovery_handler(void *dev)
3993 struct qedf_ctx *qedf = dev;
3995 QEDF_ERR(&qedf->dbg_ctx, "Recovery handler scheduled.\n");
3996 schedule_delayed_work(&qedf->recovery_work, 0);
3999 static void qedf_recovery_handler(struct work_struct *work)
4001 struct qedf_ctx *qedf =
4002 container_of(work, struct qedf_ctx, recovery_work.work);
4004 if (test_and_set_bit(QEDF_IN_RECOVERY, &qedf->flags))
4008 * Call common_ops->recovery_prolog to allow the MFW to quiesce
4009 * any PCI transactions.
4011 qed_ops->common->recovery_prolog(qedf->cdev);
4013 QEDF_ERR(&qedf->dbg_ctx, "Recovery work start.\n");
4014 __qedf_remove(qedf->pdev, QEDF_MODE_RECOVERY);
4016 * Reset link and dcbx to down state since we will not get a link down
4017 * event from the MFW but calling __qedf_remove will essentially be a
4020 atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
4021 atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
4022 __qedf_probe(qedf->pdev, QEDF_MODE_RECOVERY);
4023 clear_bit(QEDF_IN_RECOVERY, &qedf->flags);
4024 QEDF_ERR(&qedf->dbg_ctx, "Recovery work complete.\n");
4027 /* Generic TLV data callback */
4028 void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
4030 struct qedf_ctx *qedf;
4033 QEDF_INFO(NULL, QEDF_LOG_EVT,
4034 "dev is NULL so ignoring get_generic_tlv_data request.\n");
4037 qedf = (struct qedf_ctx *)dev;
4039 memset(data, 0, sizeof(struct qed_generic_tlvs));
4040 ether_addr_copy(data->mac[0], qedf->mac);
4044 * Module Init/Remove
4047 static int __init qedf_init(void)
4051 /* If debug=1 passed, set the default log mask */
4052 if (qedf_debug == QEDF_LOG_DEFAULT)
4053 qedf_debug = QEDF_DEFAULT_LOG_MASK;
4056 * Check that default prio for FIP/FCoE traffic is between 0..7 if a
4057 * value has been set
4059 if (qedf_default_prio > -1)
4060 if (qedf_default_prio > 7) {
4061 qedf_default_prio = QEDF_DEFAULT_PRIO;
4062 QEDF_ERR(NULL, "FCoE/FIP priority out of range, resetting to %d.\n",
4066 /* Print driver banner */
4067 QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
4070 /* Create kmem_cache for qedf_io_work structs */
4071 qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
4072 sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
4073 if (qedf_io_work_cache == NULL) {
4074 QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
4077 QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
4078 qedf_io_work_cache);
4080 qed_ops = qed_get_fcoe_ops();
4082 QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
4086 #ifdef CONFIG_DEBUG_FS
4087 qedf_dbg_init("qedf");
4090 qedf_fc_transport_template =
4091 fc_attach_transport(&qedf_fc_transport_fn);
4092 if (!qedf_fc_transport_template) {
4093 QEDF_ERR(NULL, "Could not register with FC transport\n");
4097 qedf_fc_vport_transport_template =
4098 fc_attach_transport(&qedf_fc_vport_transport_fn);
4099 if (!qedf_fc_vport_transport_template) {
4100 QEDF_ERR(NULL, "Could not register vport template with FC "
4105 qedf_io_wq = create_workqueue("qedf_io_wq");
4107 QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
4111 qedf_cb_ops.get_login_failures = qedf_get_login_failures;
4113 ret = pci_register_driver(&qedf_pci_driver);
4115 QEDF_ERR(NULL, "Failed to register driver\n");
4122 destroy_workqueue(qedf_io_wq);
4124 fc_release_transport(qedf_fc_vport_transport_template);
4126 fc_release_transport(qedf_fc_transport_template);
4128 #ifdef CONFIG_DEBUG_FS
4136 static void __exit qedf_cleanup(void)
4138 pci_unregister_driver(&qedf_pci_driver);
4140 destroy_workqueue(qedf_io_wq);
4142 fc_release_transport(qedf_fc_vport_transport_template);
4143 fc_release_transport(qedf_fc_transport_template);
4144 #ifdef CONFIG_DEBUG_FS
4149 kmem_cache_destroy(qedf_io_work_cache);
4152 MODULE_LICENSE("GPL");
4153 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx FCoE Module");
4154 MODULE_AUTHOR("QLogic Corporation");
4155 MODULE_VERSION(QEDF_VERSION);
4156 module_init(qedf_init);
4157 module_exit(qedf_cleanup);