2 * Copyright 2008 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * This program is free software; you may redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
18 #include <linux/errno.h>
19 #include <linux/pci.h>
20 #include <linux/slab.h>
21 #include <linux/skbuff.h>
22 #include <linux/interrupt.h>
23 #include <linux/spinlock.h>
24 #include <linux/if_ether.h>
25 #include <linux/if_vlan.h>
26 #include <linux/workqueue.h>
27 #include <scsi/fc/fc_fip.h>
28 #include <scsi/fc/fc_els.h>
29 #include <scsi/fc/fc_fcoe.h>
30 #include <scsi/fc_frame.h>
31 #include <scsi/libfc.h>
34 #include "cq_enet_desc.h"
35 #include "cq_exch_desc.h"
37 struct workqueue_struct *fnic_event_queue;
39 static void fnic_set_eth_mode(struct fnic *);
41 void fnic_handle_link(struct work_struct *work)
43 struct fnic *fnic = container_of(work, struct fnic, link_work);
46 u32 old_link_down_cnt;
48 spin_lock_irqsave(&fnic->fnic_lock, flags);
50 if (fnic->stop_rx_link_events) {
51 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
55 old_link_down_cnt = fnic->link_down_cnt;
56 old_link_status = fnic->link_status;
57 fnic->link_status = vnic_dev_link_status(fnic->vdev);
58 fnic->link_down_cnt = vnic_dev_link_down_cnt(fnic->vdev);
60 if (old_link_status == fnic->link_status) {
61 if (!fnic->link_status)
63 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
65 if (old_link_down_cnt != fnic->link_down_cnt) {
66 /* UP -> DOWN -> UP */
67 fnic->lport->host_stats.link_failure_count++;
68 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
69 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
71 fcoe_ctlr_link_down(&fnic->ctlr);
72 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
74 fcoe_ctlr_link_up(&fnic->ctlr);
77 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
79 } else if (fnic->link_status) {
81 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
82 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, "link up\n");
83 fcoe_ctlr_link_up(&fnic->ctlr);
86 fnic->lport->host_stats.link_failure_count++;
87 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
88 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, "link down\n");
89 fcoe_ctlr_link_down(&fnic->ctlr);
95 * This function passes incoming fabric frames to libFC
97 void fnic_handle_frame(struct work_struct *work)
99 struct fnic *fnic = container_of(work, struct fnic, frame_work);
100 struct fc_lport *lp = fnic->lport;
105 while ((skb = skb_dequeue(&fnic->frame_queue))) {
107 spin_lock_irqsave(&fnic->fnic_lock, flags);
108 if (fnic->stop_rx_link_events) {
109 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
113 fp = (struct fc_frame *)skb;
116 * If we're in a transitional state, just re-queue and return.
117 * The queue will be serviced when we get to a stable state.
119 if (fnic->state != FNIC_IN_FC_MODE &&
120 fnic->state != FNIC_IN_ETH_MODE) {
121 skb_queue_head(&fnic->frame_queue, skb);
122 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
125 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
127 fc_exch_recv(lp, fp);
132 * fnic_import_rq_eth_pkt() - handle received FCoE or FIP frame.
133 * @fnic: fnic instance.
134 * @skb: Ethernet Frame.
136 static inline int fnic_import_rq_eth_pkt(struct fnic *fnic, struct sk_buff *skb)
140 struct fcoe_hdr *fcoe_hdr;
141 struct fcoe_crc_eof *ft;
144 * Undo VLAN encapsulation if present.
146 eh = (struct ethhdr *)skb->data;
147 if (eh->h_proto == htons(ETH_P_8021Q)) {
148 memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
149 eh = (struct ethhdr *)skb_pull(skb, VLAN_HLEN);
150 skb_reset_mac_header(skb);
152 if (eh->h_proto == htons(ETH_P_FIP)) {
153 skb_pull(skb, sizeof(*eh));
154 fcoe_ctlr_recv(&fnic->ctlr, skb);
155 return 1; /* let caller know packet was used */
157 if (eh->h_proto != htons(ETH_P_FCOE))
159 skb_set_network_header(skb, sizeof(*eh));
160 skb_pull(skb, sizeof(*eh));
162 fcoe_hdr = (struct fcoe_hdr *)skb->data;
163 if (FC_FCOE_DECAPS_VER(fcoe_hdr) != FC_FCOE_VER)
166 fp = (struct fc_frame *)skb;
168 fr_sof(fp) = fcoe_hdr->fcoe_sof;
169 skb_pull(skb, sizeof(struct fcoe_hdr));
170 skb_reset_transport_header(skb);
172 ft = (struct fcoe_crc_eof *)(skb->data + skb->len - sizeof(*ft));
173 fr_eof(fp) = ft->fcoe_eof;
174 skb_trim(skb, skb->len - sizeof(*ft));
177 dev_kfree_skb_irq(skb);
182 * fnic_update_mac_locked() - set data MAC address and filters.
183 * @fnic: fnic instance.
184 * @new: newly-assigned FCoE MAC address.
186 * Called with the fnic lock held.
188 void fnic_update_mac_locked(struct fnic *fnic, u8 *new)
190 u8 *ctl = fnic->ctlr.ctl_src_addr;
191 u8 *data = fnic->data_src_addr;
193 if (is_zero_ether_addr(new))
195 if (!compare_ether_addr(data, new))
197 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, "update_mac %pM\n", new);
198 if (!is_zero_ether_addr(data) && compare_ether_addr(data, ctl))
199 vnic_dev_del_addr(fnic->vdev, data);
200 memcpy(data, new, ETH_ALEN);
201 if (compare_ether_addr(new, ctl))
202 vnic_dev_add_addr(fnic->vdev, new);
206 * fnic_update_mac() - set data MAC address and filters.
207 * @lport: local port.
208 * @new: newly-assigned FCoE MAC address.
210 void fnic_update_mac(struct fc_lport *lport, u8 *new)
212 struct fnic *fnic = lport_priv(lport);
214 spin_lock_irq(&fnic->fnic_lock);
215 fnic_update_mac_locked(fnic, new);
216 spin_unlock_irq(&fnic->fnic_lock);
220 * fnic_set_port_id() - set the port_ID after successful FLOGI.
221 * @lport: local port.
222 * @port_id: assigned FC_ID.
223 * @fp: received frame containing the FLOGI accept or NULL.
225 * This is called from libfc when a new FC_ID has been assigned.
226 * This causes us to reset the firmware to FC_MODE and setup the new MAC
229 * It is also called with FC_ID 0 when we're logged off.
231 * If the FC_ID is due to point-to-point, fp may be NULL.
233 void fnic_set_port_id(struct fc_lport *lport, u32 port_id, struct fc_frame *fp)
235 struct fnic *fnic = lport_priv(lport);
239 FNIC_FCS_DBG(KERN_DEBUG, lport->host, "set port_id %x fp %p\n",
243 * If we're clearing the FC_ID, change to use the ctl_src_addr.
244 * Set ethernet mode to send FLOGI.
247 fnic_update_mac(lport, fnic->ctlr.ctl_src_addr);
248 fnic_set_eth_mode(fnic);
253 mac = fr_cb(fp)->granted_mac;
254 if (is_zero_ether_addr(mac)) {
255 /* non-FIP - FLOGI already accepted - ignore return */
256 fcoe_ctlr_recv_flogi(&fnic->ctlr, lport, fp);
258 fnic_update_mac(lport, mac);
261 /* Change state to reflect transition to FC mode */
262 spin_lock_irq(&fnic->fnic_lock);
263 if (fnic->state == FNIC_IN_ETH_MODE || fnic->state == FNIC_IN_FC_MODE)
264 fnic->state = FNIC_IN_ETH_TRANS_FC_MODE;
266 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
267 "Unexpected fnic state %s while"
268 " processing flogi resp\n",
269 fnic_state_to_str(fnic->state));
270 spin_unlock_irq(&fnic->fnic_lock);
273 spin_unlock_irq(&fnic->fnic_lock);
276 * Send FLOGI registration to firmware to set up FC mode.
277 * The new address will be set up when registration completes.
279 ret = fnic_flogi_reg_handler(fnic, port_id);
282 spin_lock_irq(&fnic->fnic_lock);
283 if (fnic->state == FNIC_IN_ETH_TRANS_FC_MODE)
284 fnic->state = FNIC_IN_ETH_MODE;
285 spin_unlock_irq(&fnic->fnic_lock);
289 static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc
290 *cq_desc, struct vnic_rq_buf *buf,
291 int skipped __attribute__((unused)),
294 struct fnic *fnic = vnic_dev_priv(rq->vdev);
297 unsigned int eth_hdrs_stripped;
298 u8 type, color, eop, sop, ingress_port, vlan_stripped;
299 u8 fcoe = 0, fcoe_sof, fcoe_eof;
300 u8 fcoe_fc_crc_ok = 1, fcoe_enc_error = 0;
301 u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
302 u8 ipv6, ipv4, ipv4_fragment, rss_type, csum_not_calc;
303 u8 fcs_ok = 1, packet_error = 0;
304 u16 q_number, completed_index, bytes_written = 0, vlan, checksum;
306 u16 exchange_id, tmpl;
309 u32 fcp_bytes_written = 0;
312 pci_unmap_single(fnic->pdev, buf->dma_addr, buf->len,
315 fp = (struct fc_frame *)skb;
318 cq_desc_dec(cq_desc, &type, &color, &q_number, &completed_index);
319 if (type == CQ_DESC_TYPE_RQ_FCP) {
320 cq_fcp_rq_desc_dec((struct cq_fcp_rq_desc *)cq_desc,
321 &type, &color, &q_number, &completed_index,
322 &eop, &sop, &fcoe_fc_crc_ok, &exchange_id,
323 &tmpl, &fcp_bytes_written, &sof, &eof,
324 &ingress_port, &packet_error,
325 &fcoe_enc_error, &fcs_ok, &vlan_stripped,
327 eth_hdrs_stripped = 1;
328 skb_trim(skb, fcp_bytes_written);
332 } else if (type == CQ_DESC_TYPE_RQ_ENET) {
333 cq_enet_rq_desc_dec((struct cq_enet_rq_desc *)cq_desc,
334 &type, &color, &q_number, &completed_index,
335 &ingress_port, &fcoe, &eop, &sop,
336 &rss_type, &csum_not_calc, &rss_hash,
337 &bytes_written, &packet_error,
338 &vlan_stripped, &vlan, &checksum,
339 &fcoe_sof, &fcoe_fc_crc_ok,
340 &fcoe_enc_error, &fcoe_eof,
341 &tcp_udp_csum_ok, &udp, &tcp,
342 &ipv4_csum_ok, &ipv6, &ipv4,
343 &ipv4_fragment, &fcs_ok);
344 eth_hdrs_stripped = 0;
345 skb_trim(skb, bytes_written);
347 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
348 "fcs error. dropping packet.\n");
351 if (fnic_import_rq_eth_pkt(fnic, skb))
356 shost_printk(KERN_ERR, fnic->lport->host,
357 "fnic rq_cmpl wrong cq type x%x\n", type);
361 if (!fcs_ok || packet_error || !fcoe_fc_crc_ok || fcoe_enc_error) {
362 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
363 "fnic rq_cmpl fcoe x%x fcsok x%x"
364 " pkterr x%x fcoe_fc_crc_ok x%x, fcoe_enc_err"
366 fcoe, fcs_ok, packet_error,
367 fcoe_fc_crc_ok, fcoe_enc_error);
371 spin_lock_irqsave(&fnic->fnic_lock, flags);
372 if (fnic->stop_rx_link_events) {
373 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
376 fr_dev(fp) = fnic->lport;
377 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
379 skb_queue_tail(&fnic->frame_queue, skb);
380 queue_work(fnic_event_queue, &fnic->frame_work);
384 dev_kfree_skb_irq(skb);
387 static int fnic_rq_cmpl_handler_cont(struct vnic_dev *vdev,
388 struct cq_desc *cq_desc, u8 type,
389 u16 q_number, u16 completed_index,
392 struct fnic *fnic = vnic_dev_priv(vdev);
394 vnic_rq_service(&fnic->rq[q_number], cq_desc, completed_index,
395 VNIC_RQ_RETURN_DESC, fnic_rq_cmpl_frame_recv,
400 int fnic_rq_cmpl_handler(struct fnic *fnic, int rq_work_to_do)
402 unsigned int tot_rq_work_done = 0, cur_work_done;
406 for (i = 0; i < fnic->rq_count; i++) {
407 cur_work_done = vnic_cq_service(&fnic->cq[i], rq_work_to_do,
408 fnic_rq_cmpl_handler_cont,
411 err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame);
413 shost_printk(KERN_ERR, fnic->lport->host,
414 "fnic_alloc_rq_frame can't alloc"
417 tot_rq_work_done += cur_work_done;
420 return tot_rq_work_done;
424 * This function is called once at init time to allocate and fill RQ
425 * buffers. Subsequently, it is called in the interrupt context after RQ
426 * buffer processing to replenish the buffers in the RQ
428 int fnic_alloc_rq_frame(struct vnic_rq *rq)
430 struct fnic *fnic = vnic_dev_priv(rq->vdev);
435 len = FC_FRAME_HEADROOM + FC_MAX_FRAME + FC_FRAME_TAILROOM;
436 skb = dev_alloc_skb(len);
438 FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
439 "Unable to allocate RQ sk_buff\n");
442 skb_reset_mac_header(skb);
443 skb_reset_transport_header(skb);
444 skb_reset_network_header(skb);
446 pa = pci_map_single(fnic->pdev, skb->data, len, PCI_DMA_FROMDEVICE);
447 fnic_queue_rq_desc(rq, skb, pa, len);
451 void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf)
453 struct fc_frame *fp = buf->os_buf;
454 struct fnic *fnic = vnic_dev_priv(rq->vdev);
456 pci_unmap_single(fnic->pdev, buf->dma_addr, buf->len,
459 dev_kfree_skb(fp_skb(fp));
464 * fnic_eth_send() - Send Ethernet frame.
465 * @fip: fcoe_ctlr instance.
466 * @skb: Ethernet Frame, FIP, without VLAN encapsulation.
468 void fnic_eth_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
470 struct fnic *fnic = fnic_from_ctlr(fip);
471 struct vnic_wq *wq = &fnic->wq[0];
473 struct ethhdr *eth_hdr;
474 struct vlan_ethhdr *vlan_hdr;
477 if (!fnic->vlan_hw_insert) {
478 eth_hdr = (struct ethhdr *)skb_mac_header(skb);
479 vlan_hdr = (struct vlan_ethhdr *)skb_push(skb,
480 sizeof(*vlan_hdr) - sizeof(*eth_hdr));
481 memcpy(vlan_hdr, eth_hdr, 2 * ETH_ALEN);
482 vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
483 vlan_hdr->h_vlan_encapsulated_proto = eth_hdr->h_proto;
484 vlan_hdr->h_vlan_TCI = htons(fnic->vlan_id);
487 pa = pci_map_single(fnic->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
489 spin_lock_irqsave(&fnic->wq_lock[0], flags);
490 if (!vnic_wq_desc_avail(wq)) {
491 pci_unmap_single(fnic->pdev, pa, skb->len, PCI_DMA_TODEVICE);
492 spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
497 fnic_queue_wq_eth_desc(wq, skb, pa, skb->len,
498 0 /* hw inserts cos value */,
500 spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
506 static int fnic_send_frame(struct fnic *fnic, struct fc_frame *fp)
508 struct vnic_wq *wq = &fnic->wq[0];
511 struct ethhdr *eth_hdr;
512 struct vlan_ethhdr *vlan_hdr;
513 struct fcoe_hdr *fcoe_hdr;
514 struct fc_frame_header *fh;
515 u32 tot_len, eth_hdr_len;
519 fh = fc_frame_header_get(fp);
522 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ) &&
523 fcoe_ctlr_els_send(&fnic->ctlr, fnic->lport, skb))
526 if (!fnic->vlan_hw_insert) {
527 eth_hdr_len = sizeof(*vlan_hdr) + sizeof(*fcoe_hdr);
528 vlan_hdr = (struct vlan_ethhdr *)skb_push(skb, eth_hdr_len);
529 eth_hdr = (struct ethhdr *)vlan_hdr;
530 vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
531 vlan_hdr->h_vlan_encapsulated_proto = htons(ETH_P_FCOE);
532 vlan_hdr->h_vlan_TCI = htons(fnic->vlan_id);
533 fcoe_hdr = (struct fcoe_hdr *)(vlan_hdr + 1);
535 eth_hdr_len = sizeof(*eth_hdr) + sizeof(*fcoe_hdr);
536 eth_hdr = (struct ethhdr *)skb_push(skb, eth_hdr_len);
537 eth_hdr->h_proto = htons(ETH_P_FCOE);
538 fcoe_hdr = (struct fcoe_hdr *)(eth_hdr + 1);
541 if (fnic->ctlr.map_dest)
542 fc_fcoe_set_mac(eth_hdr->h_dest, fh->fh_d_id);
544 memcpy(eth_hdr->h_dest, fnic->ctlr.dest_addr, ETH_ALEN);
545 memcpy(eth_hdr->h_source, fnic->data_src_addr, ETH_ALEN);
550 memset(fcoe_hdr, 0, sizeof(*fcoe_hdr));
551 fcoe_hdr->fcoe_sof = fr_sof(fp);
553 FC_FCOE_ENCAPS_VER(fcoe_hdr, FC_FCOE_VER);
555 pa = pci_map_single(fnic->pdev, eth_hdr, tot_len, PCI_DMA_TODEVICE);
557 spin_lock_irqsave(&fnic->wq_lock[0], flags);
559 if (!vnic_wq_desc_avail(wq)) {
560 pci_unmap_single(fnic->pdev, pa,
561 tot_len, PCI_DMA_TODEVICE);
563 goto fnic_send_frame_end;
566 fnic_queue_wq_desc(wq, skb, pa, tot_len, fr_eof(fp),
567 0 /* hw inserts cos value */,
568 fnic->vlan_id, 1, 1, 1);
570 spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
573 dev_kfree_skb_any(fp_skb(fp));
580 * Routine to send a raw frame
582 int fnic_send(struct fc_lport *lp, struct fc_frame *fp)
584 struct fnic *fnic = lport_priv(lp);
587 if (fnic->in_remove) {
588 dev_kfree_skb(fp_skb(fp));
593 * Queue frame if in a transitional state.
594 * This occurs while registering the Port_ID / MAC address after FLOGI.
596 spin_lock_irqsave(&fnic->fnic_lock, flags);
597 if (fnic->state != FNIC_IN_FC_MODE && fnic->state != FNIC_IN_ETH_MODE) {
598 skb_queue_tail(&fnic->tx_queue, fp_skb(fp));
599 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
602 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
604 return fnic_send_frame(fnic, fp);
608 * fnic_flush_tx() - send queued frames.
611 * Send frames that were waiting to go out in FC or Ethernet mode.
612 * Whenever changing modes we purge queued frames, so these frames should
613 * be queued for the stable mode that we're in, either FC or Ethernet.
615 * Called without fnic_lock held.
617 void fnic_flush_tx(struct fnic *fnic)
622 while ((skb = skb_dequeue(&fnic->tx_queue))) {
623 fp = (struct fc_frame *)skb;
624 fnic_send_frame(fnic, fp);
629 * fnic_set_eth_mode() - put fnic into ethernet mode.
632 * Called without fnic lock held.
634 static void fnic_set_eth_mode(struct fnic *fnic)
637 enum fnic_state old_state;
640 spin_lock_irqsave(&fnic->fnic_lock, flags);
642 old_state = fnic->state;
644 case FNIC_IN_FC_MODE:
645 case FNIC_IN_ETH_TRANS_FC_MODE:
647 fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
648 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
650 ret = fnic_fw_reset_handler(fnic);
652 spin_lock_irqsave(&fnic->fnic_lock, flags);
653 if (fnic->state != FNIC_IN_FC_TRANS_ETH_MODE)
656 fnic->state = old_state;
659 case FNIC_IN_FC_TRANS_ETH_MODE:
660 case FNIC_IN_ETH_MODE:
663 spin_unlock_irqrestore(&fnic->fnic_lock, flags);
666 static void fnic_wq_complete_frame_send(struct vnic_wq *wq,
667 struct cq_desc *cq_desc,
668 struct vnic_wq_buf *buf, void *opaque)
670 struct sk_buff *skb = buf->os_buf;
671 struct fc_frame *fp = (struct fc_frame *)skb;
672 struct fnic *fnic = vnic_dev_priv(wq->vdev);
674 pci_unmap_single(fnic->pdev, buf->dma_addr,
675 buf->len, PCI_DMA_TODEVICE);
676 dev_kfree_skb_irq(fp_skb(fp));
680 static int fnic_wq_cmpl_handler_cont(struct vnic_dev *vdev,
681 struct cq_desc *cq_desc, u8 type,
682 u16 q_number, u16 completed_index,
685 struct fnic *fnic = vnic_dev_priv(vdev);
688 spin_lock_irqsave(&fnic->wq_lock[q_number], flags);
689 vnic_wq_service(&fnic->wq[q_number], cq_desc, completed_index,
690 fnic_wq_complete_frame_send, NULL);
691 spin_unlock_irqrestore(&fnic->wq_lock[q_number], flags);
696 int fnic_wq_cmpl_handler(struct fnic *fnic, int work_to_do)
698 unsigned int wq_work_done = 0;
701 for (i = 0; i < fnic->raw_wq_count; i++) {
702 wq_work_done += vnic_cq_service(&fnic->cq[fnic->rq_count+i],
704 fnic_wq_cmpl_handler_cont,
712 void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf)
714 struct fc_frame *fp = buf->os_buf;
715 struct fnic *fnic = vnic_dev_priv(wq->vdev);
717 pci_unmap_single(fnic->pdev, buf->dma_addr,
718 buf->len, PCI_DMA_TODEVICE);
720 dev_kfree_skb(fp_skb(fp));