2 * Linux network driver for QLogic BR-series Converged Network Adapter.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License (GPL) Version 2 as
6 * published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
14 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
15 * Copyright (c) 2014-2015 QLogic Corporation
19 #include <linux/bitops.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/etherdevice.h>
24 #include <linux/ethtool.h>
25 #include <linux/if_vlan.h>
26 #include <linux/if_ether.h>
28 #include <linux/prefetch.h>
29 #include <linux/module.h>
35 static DEFINE_MUTEX(bnad_fwimg_mutex);
40 static uint bnad_msix_disable;
41 module_param(bnad_msix_disable, uint, 0444);
42 MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode");
44 static uint bnad_ioc_auto_recover = 1;
45 module_param(bnad_ioc_auto_recover, uint, 0444);
46 MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery");
48 static uint bna_debugfs_enable = 1;
49 module_param(bna_debugfs_enable, uint, S_IRUGO | S_IWUSR);
50 MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1,"
51 " Range[false:0|true:1]");
56 static u32 bnad_rxqs_per_cq = 2;
58 static struct mutex bnad_list_mutex;
59 static LIST_HEAD(bnad_list);
60 static const u8 bnad_bcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
65 #define BNAD_GET_MBOX_IRQ(_bnad) \
66 (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \
67 ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \
68 ((_bnad)->pcidev->irq))
70 #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _size) \
72 (_res_info)->res_type = BNA_RES_T_MEM; \
73 (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \
74 (_res_info)->res_u.mem_info.num = (_num); \
75 (_res_info)->res_u.mem_info.len = (_size); \
79 bnad_add_to_list(struct bnad *bnad)
81 mutex_lock(&bnad_list_mutex);
82 list_add_tail(&bnad->list_entry, &bnad_list);
84 mutex_unlock(&bnad_list_mutex);
88 bnad_remove_from_list(struct bnad *bnad)
90 mutex_lock(&bnad_list_mutex);
91 list_del(&bnad->list_entry);
92 mutex_unlock(&bnad_list_mutex);
96 * Reinitialize completions in CQ, once Rx is taken down
99 bnad_cq_cleanup(struct bnad *bnad, struct bna_ccb *ccb)
101 struct bna_cq_entry *cmpl;
104 for (i = 0; i < ccb->q_depth; i++) {
105 cmpl = &((struct bna_cq_entry *)ccb->sw_q)[i];
110 /* Tx Datapath functions */
113 /* Caller should ensure that the entry at unmap_q[index] is valid */
115 bnad_tx_buff_unmap(struct bnad *bnad,
116 struct bnad_tx_unmap *unmap_q,
117 u32 q_depth, u32 index)
119 struct bnad_tx_unmap *unmap;
123 unmap = &unmap_q[index];
124 nvecs = unmap->nvecs;
129 dma_unmap_single(&bnad->pcidev->dev,
130 dma_unmap_addr(&unmap->vectors[0], dma_addr),
131 skb_headlen(skb), DMA_TO_DEVICE);
132 dma_unmap_addr_set(&unmap->vectors[0], dma_addr, 0);
138 if (vector == BFI_TX_MAX_VECTORS_PER_WI) {
140 BNA_QE_INDX_INC(index, q_depth);
141 unmap = &unmap_q[index];
144 dma_unmap_page(&bnad->pcidev->dev,
145 dma_unmap_addr(&unmap->vectors[vector], dma_addr),
146 dma_unmap_len(&unmap->vectors[vector], dma_len),
148 dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0);
152 BNA_QE_INDX_INC(index, q_depth);
158 * Frees all pending Tx Bufs
159 * At this point no activity is expected on the Q,
160 * so DMA unmap & freeing is fine.
163 bnad_txq_cleanup(struct bnad *bnad, struct bna_tcb *tcb)
165 struct bnad_tx_unmap *unmap_q = tcb->unmap_q;
169 for (i = 0; i < tcb->q_depth; i++) {
170 skb = unmap_q[i].skb;
173 bnad_tx_buff_unmap(bnad, unmap_q, tcb->q_depth, i);
175 dev_kfree_skb_any(skb);
180 * bnad_txcmpl_process : Frees the Tx bufs on Tx completion
181 * Can be called in a) Interrupt context
185 bnad_txcmpl_process(struct bnad *bnad, struct bna_tcb *tcb)
187 u32 sent_packets = 0, sent_bytes = 0;
188 u32 wis, unmap_wis, hw_cons, cons, q_depth;
189 struct bnad_tx_unmap *unmap_q = tcb->unmap_q;
190 struct bnad_tx_unmap *unmap;
193 /* Just return if TX is stopped */
194 if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
197 hw_cons = *(tcb->hw_consumer_index);
198 cons = tcb->consumer_index;
199 q_depth = tcb->q_depth;
201 wis = BNA_Q_INDEX_CHANGE(cons, hw_cons, q_depth);
202 BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth)));
205 unmap = &unmap_q[cons];
210 sent_bytes += skb->len;
212 unmap_wis = BNA_TXQ_WI_NEEDED(unmap->nvecs);
215 cons = bnad_tx_buff_unmap(bnad, unmap_q, q_depth, cons);
216 dev_kfree_skb_any(skb);
219 /* Update consumer pointers. */
220 tcb->consumer_index = hw_cons;
222 tcb->txq->tx_packets += sent_packets;
223 tcb->txq->tx_bytes += sent_bytes;
229 bnad_tx_complete(struct bnad *bnad, struct bna_tcb *tcb)
231 struct net_device *netdev = bnad->netdev;
234 if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
237 sent = bnad_txcmpl_process(bnad, tcb);
239 if (netif_queue_stopped(netdev) &&
240 netif_carrier_ok(netdev) &&
241 BNA_QE_FREE_CNT(tcb, tcb->q_depth) >=
242 BNAD_NETIF_WAKE_THRESHOLD) {
243 if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) {
244 netif_wake_queue(netdev);
245 BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
250 if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
251 bna_ib_ack(tcb->i_dbell, sent);
253 smp_mb__before_atomic();
254 clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
259 /* MSIX Tx Completion Handler */
261 bnad_msix_tx(int irq, void *data)
263 struct bna_tcb *tcb = (struct bna_tcb *)data;
264 struct bnad *bnad = tcb->bnad;
266 bnad_tx_complete(bnad, tcb);
272 bnad_rxq_alloc_uninit(struct bnad *bnad, struct bna_rcb *rcb)
274 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
276 unmap_q->reuse_pi = -1;
277 unmap_q->alloc_order = -1;
278 unmap_q->map_size = 0;
279 unmap_q->type = BNAD_RXBUF_NONE;
282 /* Default is page-based allocation. Multi-buffer support - TBD */
284 bnad_rxq_alloc_init(struct bnad *bnad, struct bna_rcb *rcb)
286 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
289 bnad_rxq_alloc_uninit(bnad, rcb);
291 order = get_order(rcb->rxq->buffer_size);
293 unmap_q->type = BNAD_RXBUF_PAGE;
295 if (bna_is_small_rxq(rcb->id)) {
296 unmap_q->alloc_order = 0;
297 unmap_q->map_size = rcb->rxq->buffer_size;
299 if (rcb->rxq->multi_buffer) {
300 unmap_q->alloc_order = 0;
301 unmap_q->map_size = rcb->rxq->buffer_size;
302 unmap_q->type = BNAD_RXBUF_MULTI_BUFF;
304 unmap_q->alloc_order = order;
306 (rcb->rxq->buffer_size > 2048) ?
307 PAGE_SIZE << order : 2048;
311 BUG_ON(((PAGE_SIZE << order) % unmap_q->map_size));
317 bnad_rxq_cleanup_page(struct bnad *bnad, struct bnad_rx_unmap *unmap)
322 dma_unmap_page(&bnad->pcidev->dev,
323 dma_unmap_addr(&unmap->vector, dma_addr),
324 unmap->vector.len, DMA_FROM_DEVICE);
325 put_page(unmap->page);
327 dma_unmap_addr_set(&unmap->vector, dma_addr, 0);
328 unmap->vector.len = 0;
332 bnad_rxq_cleanup_skb(struct bnad *bnad, struct bnad_rx_unmap *unmap)
337 dma_unmap_single(&bnad->pcidev->dev,
338 dma_unmap_addr(&unmap->vector, dma_addr),
339 unmap->vector.len, DMA_FROM_DEVICE);
340 dev_kfree_skb_any(unmap->skb);
342 dma_unmap_addr_set(&unmap->vector, dma_addr, 0);
343 unmap->vector.len = 0;
347 bnad_rxq_cleanup(struct bnad *bnad, struct bna_rcb *rcb)
349 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
352 for (i = 0; i < rcb->q_depth; i++) {
353 struct bnad_rx_unmap *unmap = &unmap_q->unmap[i];
355 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
356 bnad_rxq_cleanup_skb(bnad, unmap);
358 bnad_rxq_cleanup_page(bnad, unmap);
360 bnad_rxq_alloc_uninit(bnad, rcb);
364 bnad_rxq_refill_page(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc)
366 u32 alloced, prod, q_depth;
367 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
368 struct bnad_rx_unmap *unmap, *prev;
369 struct bna_rxq_entry *rxent;
371 u32 page_offset, alloc_size;
374 prod = rcb->producer_index;
375 q_depth = rcb->q_depth;
377 alloc_size = PAGE_SIZE << unmap_q->alloc_order;
381 unmap = &unmap_q->unmap[prod];
383 if (unmap_q->reuse_pi < 0) {
384 page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
385 unmap_q->alloc_order);
388 prev = &unmap_q->unmap[unmap_q->reuse_pi];
390 page_offset = prev->page_offset + unmap_q->map_size;
394 if (unlikely(!page)) {
395 BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
396 rcb->rxq->rxbuf_alloc_failed++;
400 dma_addr = dma_map_page(&bnad->pcidev->dev, page, page_offset,
401 unmap_q->map_size, DMA_FROM_DEVICE);
404 unmap->page_offset = page_offset;
405 dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr);
406 unmap->vector.len = unmap_q->map_size;
407 page_offset += unmap_q->map_size;
409 if (page_offset < alloc_size)
410 unmap_q->reuse_pi = prod;
412 unmap_q->reuse_pi = -1;
414 rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod];
415 BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
416 BNA_QE_INDX_INC(prod, q_depth);
421 if (likely(alloced)) {
422 rcb->producer_index = prod;
424 if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags)))
425 bna_rxq_prod_indx_doorbell(rcb);
432 bnad_rxq_refill_skb(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc)
434 u32 alloced, prod, q_depth, buff_sz;
435 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
436 struct bnad_rx_unmap *unmap;
437 struct bna_rxq_entry *rxent;
441 buff_sz = rcb->rxq->buffer_size;
442 prod = rcb->producer_index;
443 q_depth = rcb->q_depth;
447 unmap = &unmap_q->unmap[prod];
449 skb = netdev_alloc_skb_ip_align(bnad->netdev, buff_sz);
451 if (unlikely(!skb)) {
452 BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
453 rcb->rxq->rxbuf_alloc_failed++;
456 dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
457 buff_sz, DMA_FROM_DEVICE);
460 dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr);
461 unmap->vector.len = buff_sz;
463 rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod];
464 BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
465 BNA_QE_INDX_INC(prod, q_depth);
470 if (likely(alloced)) {
471 rcb->producer_index = prod;
473 if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags)))
474 bna_rxq_prod_indx_doorbell(rcb);
481 bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb)
483 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
486 to_alloc = BNA_QE_FREE_CNT(rcb, rcb->q_depth);
487 if (!(to_alloc >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT))
490 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
491 bnad_rxq_refill_skb(bnad, rcb, to_alloc);
493 bnad_rxq_refill_page(bnad, rcb, to_alloc);
496 #define flags_cksum_prot_mask (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
498 BNA_CQ_EF_TCP | BNA_CQ_EF_UDP | \
499 BNA_CQ_EF_L4_CKSUM_OK)
501 #define flags_tcp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
502 BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK)
503 #define flags_tcp6 (BNA_CQ_EF_IPV6 | \
504 BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK)
505 #define flags_udp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
506 BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK)
507 #define flags_udp6 (BNA_CQ_EF_IPV6 | \
508 BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK)
511 bnad_cq_drop_packet(struct bnad *bnad, struct bna_rcb *rcb,
512 u32 sop_ci, u32 nvecs)
514 struct bnad_rx_unmap_q *unmap_q;
515 struct bnad_rx_unmap *unmap;
518 unmap_q = rcb->unmap_q;
519 for (vec = 0, ci = sop_ci; vec < nvecs; vec++) {
520 unmap = &unmap_q->unmap[ci];
521 BNA_QE_INDX_INC(ci, rcb->q_depth);
523 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
524 bnad_rxq_cleanup_skb(bnad, unmap);
526 bnad_rxq_cleanup_page(bnad, unmap);
531 bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
532 u32 sop_ci, u32 nvecs, u32 last_fraglen)
535 u32 ci, vec, len, totlen = 0;
536 struct bnad_rx_unmap_q *unmap_q;
537 struct bnad_rx_unmap *unmap;
539 unmap_q = rcb->unmap_q;
542 /* prefetch header */
543 prefetch(page_address(unmap_q->unmap[sop_ci].page) +
544 unmap_q->unmap[sop_ci].page_offset);
546 for (vec = 1, ci = sop_ci; vec <= nvecs; vec++) {
547 unmap = &unmap_q->unmap[ci];
548 BNA_QE_INDX_INC(ci, rcb->q_depth);
550 dma_unmap_page(&bnad->pcidev->dev,
551 dma_unmap_addr(&unmap->vector, dma_addr),
552 unmap->vector.len, DMA_FROM_DEVICE);
554 len = (vec == nvecs) ?
555 last_fraglen : unmap->vector.len;
556 skb->truesize += unmap->vector.len;
559 skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
560 unmap->page, unmap->page_offset, len);
563 unmap->vector.len = 0;
567 skb->data_len += totlen;
571 bnad_cq_setup_skb(struct bnad *bnad, struct sk_buff *skb,
572 struct bnad_rx_unmap *unmap, u32 len)
576 dma_unmap_single(&bnad->pcidev->dev,
577 dma_unmap_addr(&unmap->vector, dma_addr),
578 unmap->vector.len, DMA_FROM_DEVICE);
581 skb->protocol = eth_type_trans(skb, bnad->netdev);
584 unmap->vector.len = 0;
588 bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget)
590 struct bna_cq_entry *cq, *cmpl, *next_cmpl;
591 struct bna_rcb *rcb = NULL;
592 struct bnad_rx_unmap_q *unmap_q;
593 struct bnad_rx_unmap *unmap = NULL;
594 struct sk_buff *skb = NULL;
595 struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate;
596 struct bnad_rx_ctrl *rx_ctrl = ccb->ctrl;
597 u32 packets = 0, len = 0, totlen = 0;
598 u32 pi, vec, sop_ci = 0, nvecs = 0;
599 u32 flags, masked_flags;
601 prefetch(bnad->netdev);
605 while (packets < budget) {
606 cmpl = &cq[ccb->producer_index];
609 /* The 'valid' field is set by the adapter, only after writing
610 * the other fields of completion entry. Hence, do not load
611 * other fields of completion entry *before* the 'valid' is
612 * loaded. Adding the rmb() here prevents the compiler and/or
613 * CPU from reordering the reads which would potentially result
614 * in reading stale values in completion entry.
618 BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length));
620 if (bna_is_small_rxq(cmpl->rxq_id))
625 unmap_q = rcb->unmap_q;
627 /* start of packet ci */
628 sop_ci = rcb->consumer_index;
630 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) {
631 unmap = &unmap_q->unmap[sop_ci];
634 skb = napi_get_frags(&rx_ctrl->napi);
640 flags = ntohl(cmpl->flags);
641 len = ntohs(cmpl->length);
645 /* Check all the completions for this frame.
646 * busy-wait doesn't help much, break here.
648 if (BNAD_RXBUF_IS_MULTI_BUFF(unmap_q->type) &&
649 (flags & BNA_CQ_EF_EOP) == 0) {
650 pi = ccb->producer_index;
652 BNA_QE_INDX_INC(pi, ccb->q_depth);
655 if (!next_cmpl->valid)
657 /* The 'valid' field is set by the adapter, only
658 * after writing the other fields of completion
659 * entry. Hence, do not load other fields of
660 * completion entry *before* the 'valid' is
661 * loaded. Adding the rmb() here prevents the
662 * compiler and/or CPU from reordering the reads
663 * which would potentially result in reading
664 * stale values in completion entry.
668 len = ntohs(next_cmpl->length);
669 flags = ntohl(next_cmpl->flags);
673 } while ((flags & BNA_CQ_EF_EOP) == 0);
675 if (!next_cmpl->valid)
679 /* TODO: BNA_CQ_EF_LOCAL ? */
680 if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR |
681 BNA_CQ_EF_FCS_ERROR |
682 BNA_CQ_EF_TOO_LONG))) {
683 bnad_cq_drop_packet(bnad, rcb, sop_ci, nvecs);
684 rcb->rxq->rx_packets_with_error++;
689 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
690 bnad_cq_setup_skb(bnad, skb, unmap, len);
692 bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len);
695 rcb->rxq->rx_packets++;
696 rcb->rxq->rx_bytes += totlen;
697 ccb->bytes_per_intr += totlen;
699 masked_flags = flags & flags_cksum_prot_mask;
702 ((bnad->netdev->features & NETIF_F_RXCSUM) &&
703 ((masked_flags == flags_tcp4) ||
704 (masked_flags == flags_udp4) ||
705 (masked_flags == flags_tcp6) ||
706 (masked_flags == flags_udp6))))
707 skb->ip_summed = CHECKSUM_UNNECESSARY;
709 skb_checksum_none_assert(skb);
711 if ((flags & BNA_CQ_EF_VLAN) &&
712 (bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX))
713 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(cmpl->vlan_tag));
715 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
716 netif_receive_skb(skb);
718 napi_gro_frags(&rx_ctrl->napi);
721 BNA_QE_INDX_ADD(rcb->consumer_index, nvecs, rcb->q_depth);
722 for (vec = 0; vec < nvecs; vec++) {
723 cmpl = &cq[ccb->producer_index];
725 BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth);
727 cmpl = &cq[ccb->producer_index];
730 napi_gro_flush(&rx_ctrl->napi, false);
731 if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)))
732 bna_ib_ack_disable_irq(ccb->i_dbell, packets);
734 bnad_rxq_post(bnad, ccb->rcb[0]);
736 bnad_rxq_post(bnad, ccb->rcb[1]);
742 bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb)
744 struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl);
745 struct napi_struct *napi = &rx_ctrl->napi;
747 if (likely(napi_schedule_prep(napi))) {
748 __napi_schedule(napi);
749 rx_ctrl->rx_schedule++;
753 /* MSIX Rx Path Handler */
755 bnad_msix_rx(int irq, void *data)
757 struct bna_ccb *ccb = (struct bna_ccb *)data;
760 ((struct bnad_rx_ctrl *)(ccb->ctrl))->rx_intr_ctr++;
761 bnad_netif_rx_schedule_poll(ccb->bnad, ccb);
767 /* Interrupt handlers */
769 /* Mbox Interrupt Handlers */
771 bnad_msix_mbox_handler(int irq, void *data)
775 struct bnad *bnad = (struct bnad *)data;
777 spin_lock_irqsave(&bnad->bna_lock, flags);
778 if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) {
779 spin_unlock_irqrestore(&bnad->bna_lock, flags);
783 bna_intr_status_get(&bnad->bna, intr_status);
785 if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status))
786 bna_mbox_handler(&bnad->bna, intr_status);
788 spin_unlock_irqrestore(&bnad->bna_lock, flags);
794 bnad_isr(int irq, void *data)
799 struct bnad *bnad = (struct bnad *)data;
800 struct bnad_rx_info *rx_info;
801 struct bnad_rx_ctrl *rx_ctrl;
802 struct bna_tcb *tcb = NULL;
804 spin_lock_irqsave(&bnad->bna_lock, flags);
805 if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) {
806 spin_unlock_irqrestore(&bnad->bna_lock, flags);
810 bna_intr_status_get(&bnad->bna, intr_status);
812 if (unlikely(!intr_status)) {
813 spin_unlock_irqrestore(&bnad->bna_lock, flags);
817 if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status))
818 bna_mbox_handler(&bnad->bna, intr_status);
820 spin_unlock_irqrestore(&bnad->bna_lock, flags);
822 if (!BNA_IS_INTX_DATA_INTR(intr_status))
825 /* Process data interrupts */
827 for (i = 0; i < bnad->num_tx; i++) {
828 for (j = 0; j < bnad->num_txq_per_tx; j++) {
829 tcb = bnad->tx_info[i].tcb[j];
830 if (tcb && test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
831 bnad_tx_complete(bnad, bnad->tx_info[i].tcb[j]);
835 for (i = 0; i < bnad->num_rx; i++) {
836 rx_info = &bnad->rx_info[i];
839 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
840 rx_ctrl = &rx_info->rx_ctrl[j];
842 bnad_netif_rx_schedule_poll(bnad,
850 * Called in interrupt / callback context
851 * with bna_lock held, so cfg_flags access is OK
854 bnad_enable_mbox_irq(struct bnad *bnad)
856 clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
858 BNAD_UPDATE_CTR(bnad, mbox_intr_enabled);
862 * Called with bnad->bna_lock held b'cos of
863 * bnad->cfg_flags access.
866 bnad_disable_mbox_irq(struct bnad *bnad)
868 set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
870 BNAD_UPDATE_CTR(bnad, mbox_intr_disabled);
874 bnad_set_netdev_perm_addr(struct bnad *bnad)
876 struct net_device *netdev = bnad->netdev;
878 memcpy(netdev->perm_addr, &bnad->perm_addr, netdev->addr_len);
879 if (is_zero_ether_addr(netdev->dev_addr))
880 memcpy(netdev->dev_addr, &bnad->perm_addr, netdev->addr_len);
883 /* Control Path Handlers */
887 bnad_cb_mbox_intr_enable(struct bnad *bnad)
889 bnad_enable_mbox_irq(bnad);
893 bnad_cb_mbox_intr_disable(struct bnad *bnad)
895 bnad_disable_mbox_irq(bnad);
899 bnad_cb_ioceth_ready(struct bnad *bnad)
901 bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS;
902 complete(&bnad->bnad_completions.ioc_comp);
906 bnad_cb_ioceth_failed(struct bnad *bnad)
908 bnad->bnad_completions.ioc_comp_status = BNA_CB_FAIL;
909 complete(&bnad->bnad_completions.ioc_comp);
913 bnad_cb_ioceth_disabled(struct bnad *bnad)
915 bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS;
916 complete(&bnad->bnad_completions.ioc_comp);
920 bnad_cb_enet_disabled(void *arg)
922 struct bnad *bnad = (struct bnad *)arg;
924 netif_carrier_off(bnad->netdev);
925 complete(&bnad->bnad_completions.enet_comp);
929 bnad_cb_ethport_link_status(struct bnad *bnad,
930 enum bna_link_status link_status)
932 bool link_up = false;
934 link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP);
936 if (link_status == BNA_CEE_UP) {
937 if (!test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags))
938 BNAD_UPDATE_CTR(bnad, cee_toggle);
939 set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
941 if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags))
942 BNAD_UPDATE_CTR(bnad, cee_toggle);
943 clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
947 if (!netif_carrier_ok(bnad->netdev)) {
949 printk(KERN_WARNING "bna: %s link up\n",
951 netif_carrier_on(bnad->netdev);
952 BNAD_UPDATE_CTR(bnad, link_toggle);
953 for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) {
954 for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx;
956 struct bna_tcb *tcb =
957 bnad->tx_info[tx_id].tcb[tcb_id];
964 if (test_bit(BNAD_TXQ_TX_STARTED,
968 * Transmit Schedule */
969 printk(KERN_INFO "bna: %s %d "
976 BNAD_UPDATE_CTR(bnad,
982 BNAD_UPDATE_CTR(bnad,
989 if (netif_carrier_ok(bnad->netdev)) {
990 printk(KERN_WARNING "bna: %s link down\n",
992 netif_carrier_off(bnad->netdev);
993 BNAD_UPDATE_CTR(bnad, link_toggle);
999 bnad_cb_tx_disabled(void *arg, struct bna_tx *tx)
1001 struct bnad *bnad = (struct bnad *)arg;
1003 complete(&bnad->bnad_completions.tx_comp);
1007 bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb)
1009 struct bnad_tx_info *tx_info =
1010 (struct bnad_tx_info *)tcb->txq->tx->priv;
1013 tx_info->tcb[tcb->id] = tcb;
1017 bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb)
1019 struct bnad_tx_info *tx_info =
1020 (struct bnad_tx_info *)tcb->txq->tx->priv;
1022 tx_info->tcb[tcb->id] = NULL;
1027 bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb)
1029 struct bnad_rx_info *rx_info =
1030 (struct bnad_rx_info *)ccb->cq->rx->priv;
1032 rx_info->rx_ctrl[ccb->id].ccb = ccb;
1033 ccb->ctrl = &rx_info->rx_ctrl[ccb->id];
1037 bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb)
1039 struct bnad_rx_info *rx_info =
1040 (struct bnad_rx_info *)ccb->cq->rx->priv;
1042 rx_info->rx_ctrl[ccb->id].ccb = NULL;
1046 bnad_cb_tx_stall(struct bnad *bnad, struct bna_tx *tx)
1048 struct bnad_tx_info *tx_info =
1049 (struct bnad_tx_info *)tx->priv;
1050 struct bna_tcb *tcb;
1054 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1055 tcb = tx_info->tcb[i];
1059 clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
1060 netif_stop_subqueue(bnad->netdev, txq_id);
1061 printk(KERN_INFO "bna: %s %d TXQ_STOPPED\n",
1062 bnad->netdev->name, txq_id);
1067 bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx)
1069 struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv;
1070 struct bna_tcb *tcb;
1074 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1075 tcb = tx_info->tcb[i];
1080 BUG_ON(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags));
1081 set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
1082 BUG_ON(*(tcb->hw_consumer_index) != 0);
1084 if (netif_carrier_ok(bnad->netdev)) {
1085 printk(KERN_INFO "bna: %s %d TXQ_STARTED\n",
1086 bnad->netdev->name, txq_id);
1087 netif_wake_subqueue(bnad->netdev, txq_id);
1088 BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
1093 * Workaround for first ioceth enable failure & we
1094 * get a 0 MAC address. We try to get the MAC address
1097 if (is_zero_ether_addr(&bnad->perm_addr.mac[0])) {
1098 bna_enet_perm_mac_get(&bnad->bna.enet, &bnad->perm_addr);
1099 bnad_set_netdev_perm_addr(bnad);
1104 * Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm.
1107 bnad_tx_cleanup(struct delayed_work *work)
1109 struct bnad_tx_info *tx_info =
1110 container_of(work, struct bnad_tx_info, tx_cleanup_work);
1111 struct bnad *bnad = NULL;
1112 struct bna_tcb *tcb;
1113 unsigned long flags;
1116 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1117 tcb = tx_info->tcb[i];
1123 if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
1128 bnad_txq_cleanup(bnad, tcb);
1130 smp_mb__before_atomic();
1131 clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
1135 queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work,
1136 msecs_to_jiffies(1));
1140 spin_lock_irqsave(&bnad->bna_lock, flags);
1141 bna_tx_cleanup_complete(tx_info->tx);
1142 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1146 bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx)
1148 struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv;
1149 struct bna_tcb *tcb;
1152 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1153 tcb = tx_info->tcb[i];
1158 queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, 0);
1162 bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx)
1164 struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
1165 struct bna_ccb *ccb;
1166 struct bnad_rx_ctrl *rx_ctrl;
1169 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1170 rx_ctrl = &rx_info->rx_ctrl[i];
1175 clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags);
1178 clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags);
1183 * Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm.
1186 bnad_rx_cleanup(void *work)
1188 struct bnad_rx_info *rx_info =
1189 container_of(work, struct bnad_rx_info, rx_cleanup_work);
1190 struct bnad_rx_ctrl *rx_ctrl;
1191 struct bnad *bnad = NULL;
1192 unsigned long flags;
1195 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1196 rx_ctrl = &rx_info->rx_ctrl[i];
1201 bnad = rx_ctrl->ccb->bnad;
1204 * Wait till the poll handler has exited
1205 * and nothing can be scheduled anymore
1207 napi_disable(&rx_ctrl->napi);
1209 bnad_cq_cleanup(bnad, rx_ctrl->ccb);
1210 bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[0]);
1211 if (rx_ctrl->ccb->rcb[1])
1212 bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[1]);
1215 spin_lock_irqsave(&bnad->bna_lock, flags);
1216 bna_rx_cleanup_complete(rx_info->rx);
1217 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1221 bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx)
1223 struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
1224 struct bna_ccb *ccb;
1225 struct bnad_rx_ctrl *rx_ctrl;
1228 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1229 rx_ctrl = &rx_info->rx_ctrl[i];
1234 clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags);
1237 clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags);
1240 queue_work(bnad->work_q, &rx_info->rx_cleanup_work);
1244 bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx)
1246 struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
1247 struct bna_ccb *ccb;
1248 struct bna_rcb *rcb;
1249 struct bnad_rx_ctrl *rx_ctrl;
1252 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1253 rx_ctrl = &rx_info->rx_ctrl[i];
1258 napi_enable(&rx_ctrl->napi);
1260 for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) {
1265 bnad_rxq_alloc_init(bnad, rcb);
1266 set_bit(BNAD_RXQ_STARTED, &rcb->flags);
1267 set_bit(BNAD_RXQ_POST_OK, &rcb->flags);
1268 bnad_rxq_post(bnad, rcb);
1274 bnad_cb_rx_disabled(void *arg, struct bna_rx *rx)
1276 struct bnad *bnad = (struct bnad *)arg;
1278 complete(&bnad->bnad_completions.rx_comp);
1282 bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx)
1284 bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS;
1285 complete(&bnad->bnad_completions.mcast_comp);
1289 bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status,
1290 struct bna_stats *stats)
1292 if (status == BNA_CB_SUCCESS)
1293 BNAD_UPDATE_CTR(bnad, hw_stats_updates);
1295 if (!netif_running(bnad->netdev) ||
1296 !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
1299 mod_timer(&bnad->stats_timer,
1300 jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
1304 bnad_cb_enet_mtu_set(struct bnad *bnad)
1306 bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS;
1307 complete(&bnad->bnad_completions.mtu_comp);
1311 bnad_cb_completion(void *arg, enum bfa_status status)
1313 struct bnad_iocmd_comp *iocmd_comp =
1314 (struct bnad_iocmd_comp *)arg;
1316 iocmd_comp->comp_status = (u32) status;
1317 complete(&iocmd_comp->comp);
1320 /* Resource allocation, free functions */
1323 bnad_mem_free(struct bnad *bnad,
1324 struct bna_mem_info *mem_info)
1329 if (mem_info->mdl == NULL)
1332 for (i = 0; i < mem_info->num; i++) {
1333 if (mem_info->mdl[i].kva != NULL) {
1334 if (mem_info->mem_type == BNA_MEM_T_DMA) {
1335 BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma),
1337 dma_free_coherent(&bnad->pcidev->dev,
1338 mem_info->mdl[i].len,
1339 mem_info->mdl[i].kva, dma_pa);
1341 kfree(mem_info->mdl[i].kva);
1344 kfree(mem_info->mdl);
1345 mem_info->mdl = NULL;
1349 bnad_mem_alloc(struct bnad *bnad,
1350 struct bna_mem_info *mem_info)
1355 if ((mem_info->num == 0) || (mem_info->len == 0)) {
1356 mem_info->mdl = NULL;
1360 mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr),
1362 if (mem_info->mdl == NULL)
1365 if (mem_info->mem_type == BNA_MEM_T_DMA) {
1366 for (i = 0; i < mem_info->num; i++) {
1367 mem_info->mdl[i].len = mem_info->len;
1368 mem_info->mdl[i].kva =
1369 dma_alloc_coherent(&bnad->pcidev->dev,
1370 mem_info->len, &dma_pa,
1372 if (mem_info->mdl[i].kva == NULL)
1375 BNA_SET_DMA_ADDR(dma_pa,
1376 &(mem_info->mdl[i].dma));
1379 for (i = 0; i < mem_info->num; i++) {
1380 mem_info->mdl[i].len = mem_info->len;
1381 mem_info->mdl[i].kva = kzalloc(mem_info->len,
1383 if (mem_info->mdl[i].kva == NULL)
1391 bnad_mem_free(bnad, mem_info);
1395 /* Free IRQ for Mailbox */
1397 bnad_mbox_irq_free(struct bnad *bnad)
1400 unsigned long flags;
1402 spin_lock_irqsave(&bnad->bna_lock, flags);
1403 bnad_disable_mbox_irq(bnad);
1404 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1406 irq = BNAD_GET_MBOX_IRQ(bnad);
1407 free_irq(irq, bnad);
1411 * Allocates IRQ for Mailbox, but keep it disabled
1412 * This will be enabled once we get the mbox enable callback
1416 bnad_mbox_irq_alloc(struct bnad *bnad)
1419 unsigned long irq_flags, flags;
1421 irq_handler_t irq_handler;
1423 spin_lock_irqsave(&bnad->bna_lock, flags);
1424 if (bnad->cfg_flags & BNAD_CF_MSIX) {
1425 irq_handler = (irq_handler_t)bnad_msix_mbox_handler;
1426 irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector;
1429 irq_handler = (irq_handler_t)bnad_isr;
1430 irq = bnad->pcidev->irq;
1431 irq_flags = IRQF_SHARED;
1434 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1435 sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME);
1438 * Set the Mbox IRQ disable flag, so that the IRQ handler
1439 * called from request_irq() for SHARED IRQs do not execute
1441 set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
1443 BNAD_UPDATE_CTR(bnad, mbox_intr_disabled);
1445 err = request_irq(irq, irq_handler, irq_flags,
1446 bnad->mbox_irq_name, bnad);
1452 bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info)
1454 kfree(intr_info->idl);
1455 intr_info->idl = NULL;
1458 /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */
1460 bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src,
1461 u32 txrx_id, struct bna_intr_info *intr_info)
1463 int i, vector_start = 0;
1465 unsigned long flags;
1467 spin_lock_irqsave(&bnad->bna_lock, flags);
1468 cfg_flags = bnad->cfg_flags;
1469 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1471 if (cfg_flags & BNAD_CF_MSIX) {
1472 intr_info->intr_type = BNA_INTR_T_MSIX;
1473 intr_info->idl = kcalloc(intr_info->num,
1474 sizeof(struct bna_intr_descr),
1476 if (!intr_info->idl)
1481 vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id;
1485 vector_start = BNAD_MAILBOX_MSIX_VECTORS +
1486 (bnad->num_tx * bnad->num_txq_per_tx) +
1494 for (i = 0; i < intr_info->num; i++)
1495 intr_info->idl[i].vector = vector_start + i;
1497 intr_info->intr_type = BNA_INTR_T_INTX;
1499 intr_info->idl = kcalloc(intr_info->num,
1500 sizeof(struct bna_intr_descr),
1502 if (!intr_info->idl)
1507 intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK;
1511 intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK;
1518 /* NOTE: Should be called for MSIX only
1519 * Unregisters Tx MSIX vector(s) from the kernel
1522 bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info,
1528 for (i = 0; i < num_txqs; i++) {
1529 if (tx_info->tcb[i] == NULL)
1532 vector_num = tx_info->tcb[i]->intr_vector;
1533 free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]);
1537 /* NOTE: Should be called for MSIX only
1538 * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
1541 bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info,
1542 u32 tx_id, int num_txqs)
1548 for (i = 0; i < num_txqs; i++) {
1549 vector_num = tx_info->tcb[i]->intr_vector;
1550 sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name,
1551 tx_id + tx_info->tcb[i]->id);
1552 err = request_irq(bnad->msix_table[vector_num].vector,
1553 (irq_handler_t)bnad_msix_tx, 0,
1554 tx_info->tcb[i]->name,
1564 bnad_tx_msix_unregister(bnad, tx_info, (i - 1));
1568 /* NOTE: Should be called for MSIX only
1569 * Unregisters Rx MSIX vector(s) from the kernel
1572 bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info,
1578 for (i = 0; i < num_rxps; i++) {
1579 if (rx_info->rx_ctrl[i].ccb == NULL)
1582 vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
1583 free_irq(bnad->msix_table[vector_num].vector,
1584 rx_info->rx_ctrl[i].ccb);
1588 /* NOTE: Should be called for MSIX only
1589 * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
1592 bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info,
1593 u32 rx_id, int num_rxps)
1599 for (i = 0; i < num_rxps; i++) {
1600 vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
1601 sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d",
1603 rx_id + rx_info->rx_ctrl[i].ccb->id);
1604 err = request_irq(bnad->msix_table[vector_num].vector,
1605 (irq_handler_t)bnad_msix_rx, 0,
1606 rx_info->rx_ctrl[i].ccb->name,
1607 rx_info->rx_ctrl[i].ccb);
1616 bnad_rx_msix_unregister(bnad, rx_info, (i - 1));
1620 /* Free Tx object Resources */
1622 bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
1626 for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
1627 if (res_info[i].res_type == BNA_RES_T_MEM)
1628 bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
1629 else if (res_info[i].res_type == BNA_RES_T_INTR)
1630 bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
1634 /* Allocates memory and interrupt resources for Tx object */
1636 bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
1641 for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
1642 if (res_info[i].res_type == BNA_RES_T_MEM)
1643 err = bnad_mem_alloc(bnad,
1644 &res_info[i].res_u.mem_info);
1645 else if (res_info[i].res_type == BNA_RES_T_INTR)
1646 err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id,
1647 &res_info[i].res_u.intr_info);
1654 bnad_tx_res_free(bnad, res_info);
1658 /* Free Rx object Resources */
1660 bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
1664 for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
1665 if (res_info[i].res_type == BNA_RES_T_MEM)
1666 bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
1667 else if (res_info[i].res_type == BNA_RES_T_INTR)
1668 bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
1672 /* Allocates memory and interrupt resources for Rx object */
1674 bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
1679 /* All memory needs to be allocated before setup_ccbs */
1680 for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
1681 if (res_info[i].res_type == BNA_RES_T_MEM)
1682 err = bnad_mem_alloc(bnad,
1683 &res_info[i].res_u.mem_info);
1684 else if (res_info[i].res_type == BNA_RES_T_INTR)
1685 err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id,
1686 &res_info[i].res_u.intr_info);
1693 bnad_rx_res_free(bnad, res_info);
1697 /* Timer callbacks */
1700 bnad_ioc_timeout(unsigned long data)
1702 struct bnad *bnad = (struct bnad *)data;
1703 unsigned long flags;
1705 spin_lock_irqsave(&bnad->bna_lock, flags);
1706 bfa_nw_ioc_timeout((void *) &bnad->bna.ioceth.ioc);
1707 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1711 bnad_ioc_hb_check(unsigned long data)
1713 struct bnad *bnad = (struct bnad *)data;
1714 unsigned long flags;
1716 spin_lock_irqsave(&bnad->bna_lock, flags);
1717 bfa_nw_ioc_hb_check((void *) &bnad->bna.ioceth.ioc);
1718 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1722 bnad_iocpf_timeout(unsigned long data)
1724 struct bnad *bnad = (struct bnad *)data;
1725 unsigned long flags;
1727 spin_lock_irqsave(&bnad->bna_lock, flags);
1728 bfa_nw_iocpf_timeout((void *) &bnad->bna.ioceth.ioc);
1729 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1733 bnad_iocpf_sem_timeout(unsigned long data)
1735 struct bnad *bnad = (struct bnad *)data;
1736 unsigned long flags;
1738 spin_lock_irqsave(&bnad->bna_lock, flags);
1739 bfa_nw_iocpf_sem_timeout((void *) &bnad->bna.ioceth.ioc);
1740 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1744 * All timer routines use bnad->bna_lock to protect against
1745 * the following race, which may occur in case of no locking:
1753 /* b) Dynamic Interrupt Moderation Timer */
1755 bnad_dim_timeout(unsigned long data)
1757 struct bnad *bnad = (struct bnad *)data;
1758 struct bnad_rx_info *rx_info;
1759 struct bnad_rx_ctrl *rx_ctrl;
1761 unsigned long flags;
1763 if (!netif_carrier_ok(bnad->netdev))
1766 spin_lock_irqsave(&bnad->bna_lock, flags);
1767 for (i = 0; i < bnad->num_rx; i++) {
1768 rx_info = &bnad->rx_info[i];
1771 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
1772 rx_ctrl = &rx_info->rx_ctrl[j];
1775 bna_rx_dim_update(rx_ctrl->ccb);
1779 /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */
1780 if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags))
1781 mod_timer(&bnad->dim_timer,
1782 jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
1783 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1786 /* c) Statistics Timer */
1788 bnad_stats_timeout(unsigned long data)
1790 struct bnad *bnad = (struct bnad *)data;
1791 unsigned long flags;
1793 if (!netif_running(bnad->netdev) ||
1794 !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
1797 spin_lock_irqsave(&bnad->bna_lock, flags);
1798 bna_hw_stats_get(&bnad->bna);
1799 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1803 * Set up timer for DIM
1804 * Called with bnad->bna_lock held
1807 bnad_dim_timer_start(struct bnad *bnad)
1809 if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
1810 !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
1811 setup_timer(&bnad->dim_timer, bnad_dim_timeout,
1812 (unsigned long)bnad);
1813 set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
1814 mod_timer(&bnad->dim_timer,
1815 jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
1820 * Set up timer for statistics
1821 * Called with mutex_lock(&bnad->conf_mutex) held
1824 bnad_stats_timer_start(struct bnad *bnad)
1826 unsigned long flags;
1828 spin_lock_irqsave(&bnad->bna_lock, flags);
1829 if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) {
1830 setup_timer(&bnad->stats_timer, bnad_stats_timeout,
1831 (unsigned long)bnad);
1832 mod_timer(&bnad->stats_timer,
1833 jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
1835 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1839 * Stops the stats timer
1840 * Called with mutex_lock(&bnad->conf_mutex) held
1843 bnad_stats_timer_stop(struct bnad *bnad)
1846 unsigned long flags;
1848 spin_lock_irqsave(&bnad->bna_lock, flags);
1849 if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
1851 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1853 del_timer_sync(&bnad->stats_timer);
1859 bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list)
1861 int i = 1; /* Index 0 has broadcast address */
1862 struct netdev_hw_addr *mc_addr;
1864 netdev_for_each_mc_addr(mc_addr, netdev) {
1865 memcpy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0],
1872 bnad_napi_poll_rx(struct napi_struct *napi, int budget)
1874 struct bnad_rx_ctrl *rx_ctrl =
1875 container_of(napi, struct bnad_rx_ctrl, napi);
1876 struct bnad *bnad = rx_ctrl->bnad;
1879 rx_ctrl->rx_poll_ctr++;
1881 if (!netif_carrier_ok(bnad->netdev))
1884 rcvd = bnad_cq_process(bnad, rx_ctrl->ccb, budget);
1889 napi_complete(napi);
1891 rx_ctrl->rx_complete++;
1894 bnad_enable_rx_irq_unsafe(rx_ctrl->ccb);
1899 #define BNAD_NAPI_POLL_QUOTA 64
1901 bnad_napi_add(struct bnad *bnad, u32 rx_id)
1903 struct bnad_rx_ctrl *rx_ctrl;
1906 /* Initialize & enable NAPI */
1907 for (i = 0; i < bnad->num_rxp_per_rx; i++) {
1908 rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i];
1909 netif_napi_add(bnad->netdev, &rx_ctrl->napi,
1910 bnad_napi_poll_rx, BNAD_NAPI_POLL_QUOTA);
1915 bnad_napi_delete(struct bnad *bnad, u32 rx_id)
1919 /* First disable and then clean up */
1920 for (i = 0; i < bnad->num_rxp_per_rx; i++)
1921 netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
1924 /* Should be held with conf_lock held */
1926 bnad_destroy_tx(struct bnad *bnad, u32 tx_id)
1928 struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
1929 struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
1930 unsigned long flags;
1935 init_completion(&bnad->bnad_completions.tx_comp);
1936 spin_lock_irqsave(&bnad->bna_lock, flags);
1937 bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled);
1938 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1939 wait_for_completion(&bnad->bnad_completions.tx_comp);
1941 if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX)
1942 bnad_tx_msix_unregister(bnad, tx_info,
1943 bnad->num_txq_per_tx);
1945 spin_lock_irqsave(&bnad->bna_lock, flags);
1946 bna_tx_destroy(tx_info->tx);
1947 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1952 bnad_tx_res_free(bnad, res_info);
1955 /* Should be held with conf_lock held */
1957 bnad_setup_tx(struct bnad *bnad, u32 tx_id)
1960 struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
1961 struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
1962 struct bna_intr_info *intr_info =
1963 &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info;
1964 struct bna_tx_config *tx_config = &bnad->tx_config[tx_id];
1965 static const struct bna_tx_event_cbfn tx_cbfn = {
1966 .tcb_setup_cbfn = bnad_cb_tcb_setup,
1967 .tcb_destroy_cbfn = bnad_cb_tcb_destroy,
1968 .tx_stall_cbfn = bnad_cb_tx_stall,
1969 .tx_resume_cbfn = bnad_cb_tx_resume,
1970 .tx_cleanup_cbfn = bnad_cb_tx_cleanup,
1974 unsigned long flags;
1976 tx_info->tx_id = tx_id;
1978 /* Initialize the Tx object configuration */
1979 tx_config->num_txq = bnad->num_txq_per_tx;
1980 tx_config->txq_depth = bnad->txq_depth;
1981 tx_config->tx_type = BNA_TX_T_REGULAR;
1982 tx_config->coalescing_timeo = bnad->tx_coalescing_timeo;
1984 /* Get BNA's resource requirement for one tx object */
1985 spin_lock_irqsave(&bnad->bna_lock, flags);
1986 bna_tx_res_req(bnad->num_txq_per_tx,
1987 bnad->txq_depth, res_info);
1988 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1990 /* Fill Unmap Q memory requirements */
1991 BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_TX_RES_MEM_T_UNMAPQ],
1992 bnad->num_txq_per_tx, (sizeof(struct bnad_tx_unmap) *
1995 /* Allocate resources */
1996 err = bnad_tx_res_alloc(bnad, res_info, tx_id);
2000 /* Ask BNA to create one Tx object, supplying required resources */
2001 spin_lock_irqsave(&bnad->bna_lock, flags);
2002 tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info,
2004 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2011 INIT_DELAYED_WORK(&tx_info->tx_cleanup_work,
2012 (work_func_t)bnad_tx_cleanup);
2014 /* Register ISR for the Tx object */
2015 if (intr_info->intr_type == BNA_INTR_T_MSIX) {
2016 err = bnad_tx_msix_register(bnad, tx_info,
2017 tx_id, bnad->num_txq_per_tx);
2022 spin_lock_irqsave(&bnad->bna_lock, flags);
2024 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2029 spin_lock_irqsave(&bnad->bna_lock, flags);
2030 bna_tx_destroy(tx_info->tx);
2031 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2035 bnad_tx_res_free(bnad, res_info);
2039 /* Setup the rx config for bna_rx_create */
2040 /* bnad decides the configuration */
2042 bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config)
2044 memset(rx_config, 0, sizeof(*rx_config));
2045 rx_config->rx_type = BNA_RX_T_REGULAR;
2046 rx_config->num_paths = bnad->num_rxp_per_rx;
2047 rx_config->coalescing_timeo = bnad->rx_coalescing_timeo;
2049 if (bnad->num_rxp_per_rx > 1) {
2050 rx_config->rss_status = BNA_STATUS_T_ENABLED;
2051 rx_config->rss_config.hash_type =
2052 (BFI_ENET_RSS_IPV6 |
2053 BFI_ENET_RSS_IPV6_TCP |
2055 BFI_ENET_RSS_IPV4_TCP);
2056 rx_config->rss_config.hash_mask =
2057 bnad->num_rxp_per_rx - 1;
2058 netdev_rss_key_fill(rx_config->rss_config.toeplitz_hash_key,
2059 sizeof(rx_config->rss_config.toeplitz_hash_key));
2061 rx_config->rss_status = BNA_STATUS_T_DISABLED;
2062 memset(&rx_config->rss_config, 0,
2063 sizeof(rx_config->rss_config));
2066 rx_config->frame_size = BNAD_FRAME_SIZE(bnad->netdev->mtu);
2067 rx_config->q0_multi_buf = BNA_STATUS_T_DISABLED;
2069 /* BNA_RXP_SINGLE - one data-buffer queue
2070 * BNA_RXP_SLR - one small-buffer and one large-buffer queues
2071 * BNA_RXP_HDS - one header-buffer and one data-buffer queues
2073 /* TODO: configurable param for queue type */
2074 rx_config->rxp_type = BNA_RXP_SLR;
2076 if (BNAD_PCI_DEV_IS_CAT2(bnad) &&
2077 rx_config->frame_size > 4096) {
2078 /* though size_routing_enable is set in SLR,
2079 * small packets may get routed to same rxq.
2080 * set buf_size to 2048 instead of PAGE_SIZE.
2082 rx_config->q0_buf_size = 2048;
2083 /* this should be in multiples of 2 */
2084 rx_config->q0_num_vecs = 4;
2085 rx_config->q0_depth = bnad->rxq_depth * rx_config->q0_num_vecs;
2086 rx_config->q0_multi_buf = BNA_STATUS_T_ENABLED;
2088 rx_config->q0_buf_size = rx_config->frame_size;
2089 rx_config->q0_num_vecs = 1;
2090 rx_config->q0_depth = bnad->rxq_depth;
2093 /* initialize for q1 for BNA_RXP_SLR/BNA_RXP_HDS */
2094 if (rx_config->rxp_type == BNA_RXP_SLR) {
2095 rx_config->q1_depth = bnad->rxq_depth;
2096 rx_config->q1_buf_size = BFI_SMALL_RXBUF_SIZE;
2099 rx_config->vlan_strip_status =
2100 (bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) ?
2101 BNA_STATUS_T_ENABLED : BNA_STATUS_T_DISABLED;
2105 bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id)
2107 struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
2110 for (i = 0; i < bnad->num_rxp_per_rx; i++)
2111 rx_info->rx_ctrl[i].bnad = bnad;
2114 /* Called with mutex_lock(&bnad->conf_mutex) held */
2116 bnad_reinit_rx(struct bnad *bnad)
2118 struct net_device *netdev = bnad->netdev;
2119 u32 err = 0, current_err = 0;
2120 u32 rx_id = 0, count = 0;
2121 unsigned long flags;
2123 /* destroy and create new rx objects */
2124 for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) {
2125 if (!bnad->rx_info[rx_id].rx)
2127 bnad_destroy_rx(bnad, rx_id);
2130 spin_lock_irqsave(&bnad->bna_lock, flags);
2131 bna_enet_mtu_set(&bnad->bna.enet,
2132 BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL);
2133 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2135 for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) {
2137 current_err = bnad_setup_rx(bnad, rx_id);
2138 if (current_err && !err) {
2140 pr_err("RXQ:%u setup failed\n", rx_id);
2144 /* restore rx configuration */
2145 if (bnad->rx_info[0].rx && !err) {
2146 bnad_restore_vlans(bnad, 0);
2147 bnad_enable_default_bcast(bnad);
2148 spin_lock_irqsave(&bnad->bna_lock, flags);
2149 bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
2150 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2151 bnad_set_rx_mode(netdev);
2157 /* Called with bnad_conf_lock() held */
2159 bnad_destroy_rx(struct bnad *bnad, u32 rx_id)
2161 struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
2162 struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
2163 struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
2164 unsigned long flags;
2171 spin_lock_irqsave(&bnad->bna_lock, flags);
2172 if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
2173 test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
2174 clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
2177 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2179 del_timer_sync(&bnad->dim_timer);
2182 init_completion(&bnad->bnad_completions.rx_comp);
2183 spin_lock_irqsave(&bnad->bna_lock, flags);
2184 bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled);
2185 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2186 wait_for_completion(&bnad->bnad_completions.rx_comp);
2188 if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX)
2189 bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths);
2191 bnad_napi_delete(bnad, rx_id);
2193 spin_lock_irqsave(&bnad->bna_lock, flags);
2194 bna_rx_destroy(rx_info->rx);
2198 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2200 bnad_rx_res_free(bnad, res_info);
2203 /* Called with mutex_lock(&bnad->conf_mutex) held */
2205 bnad_setup_rx(struct bnad *bnad, u32 rx_id)
2208 struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
2209 struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
2210 struct bna_intr_info *intr_info =
2211 &res_info[BNA_RX_RES_T_INTR].res_u.intr_info;
2212 struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
2213 static const struct bna_rx_event_cbfn rx_cbfn = {
2214 .rcb_setup_cbfn = NULL,
2215 .rcb_destroy_cbfn = NULL,
2216 .ccb_setup_cbfn = bnad_cb_ccb_setup,
2217 .ccb_destroy_cbfn = bnad_cb_ccb_destroy,
2218 .rx_stall_cbfn = bnad_cb_rx_stall,
2219 .rx_cleanup_cbfn = bnad_cb_rx_cleanup,
2220 .rx_post_cbfn = bnad_cb_rx_post,
2223 unsigned long flags;
2225 rx_info->rx_id = rx_id;
2227 /* Initialize the Rx object configuration */
2228 bnad_init_rx_config(bnad, rx_config);
2230 /* Get BNA's resource requirement for one Rx object */
2231 spin_lock_irqsave(&bnad->bna_lock, flags);
2232 bna_rx_res_req(rx_config, res_info);
2233 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2235 /* Fill Unmap Q memory requirements */
2236 BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPDQ],
2237 rx_config->num_paths,
2238 (rx_config->q0_depth *
2239 sizeof(struct bnad_rx_unmap)) +
2240 sizeof(struct bnad_rx_unmap_q));
2242 if (rx_config->rxp_type != BNA_RXP_SINGLE) {
2243 BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPHQ],
2244 rx_config->num_paths,
2245 (rx_config->q1_depth *
2246 sizeof(struct bnad_rx_unmap) +
2247 sizeof(struct bnad_rx_unmap_q)));
2249 /* Allocate resource */
2250 err = bnad_rx_res_alloc(bnad, res_info, rx_id);
2254 bnad_rx_ctrl_init(bnad, rx_id);
2256 /* Ask BNA to create one Rx object, supplying required resources */
2257 spin_lock_irqsave(&bnad->bna_lock, flags);
2258 rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info,
2262 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2266 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2268 INIT_WORK(&rx_info->rx_cleanup_work,
2269 (work_func_t)(bnad_rx_cleanup));
2272 * Init NAPI, so that state is set to NAPI_STATE_SCHED,
2273 * so that IRQ handler cannot schedule NAPI at this point.
2275 bnad_napi_add(bnad, rx_id);
2277 /* Register ISR for the Rx object */
2278 if (intr_info->intr_type == BNA_INTR_T_MSIX) {
2279 err = bnad_rx_msix_register(bnad, rx_info, rx_id,
2280 rx_config->num_paths);
2285 spin_lock_irqsave(&bnad->bna_lock, flags);
2287 /* Set up Dynamic Interrupt Moderation Vector */
2288 if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED)
2289 bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector);
2291 /* Enable VLAN filtering only on the default Rx */
2292 bna_rx_vlanfilter_enable(rx);
2294 /* Start the DIM timer */
2295 bnad_dim_timer_start(bnad);
2299 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2304 bnad_destroy_rx(bnad, rx_id);
2308 /* Called with conf_lock & bnad->bna_lock held */
2310 bnad_tx_coalescing_timeo_set(struct bnad *bnad)
2312 struct bnad_tx_info *tx_info;
2314 tx_info = &bnad->tx_info[0];
2318 bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo);
2321 /* Called with conf_lock & bnad->bna_lock held */
2323 bnad_rx_coalescing_timeo_set(struct bnad *bnad)
2325 struct bnad_rx_info *rx_info;
2328 for (i = 0; i < bnad->num_rx; i++) {
2329 rx_info = &bnad->rx_info[i];
2332 bna_rx_coalescing_timeo_set(rx_info->rx,
2333 bnad->rx_coalescing_timeo);
2338 * Called with bnad->bna_lock held
2341 bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr)
2345 if (!is_valid_ether_addr(mac_addr))
2346 return -EADDRNOTAVAIL;
2348 /* If datapath is down, pretend everything went through */
2349 if (!bnad->rx_info[0].rx)
2352 ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr, NULL);
2353 if (ret != BNA_CB_SUCCESS)
2354 return -EADDRNOTAVAIL;
2359 /* Should be called with conf_lock held */
2361 bnad_enable_default_bcast(struct bnad *bnad)
2363 struct bnad_rx_info *rx_info = &bnad->rx_info[0];
2365 unsigned long flags;
2367 init_completion(&bnad->bnad_completions.mcast_comp);
2369 spin_lock_irqsave(&bnad->bna_lock, flags);
2370 ret = bna_rx_mcast_add(rx_info->rx, (u8 *)bnad_bcast_addr,
2371 bnad_cb_rx_mcast_add);
2372 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2374 if (ret == BNA_CB_SUCCESS)
2375 wait_for_completion(&bnad->bnad_completions.mcast_comp);
2379 if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS)
2385 /* Called with mutex_lock(&bnad->conf_mutex) held */
2387 bnad_restore_vlans(struct bnad *bnad, u32 rx_id)
2390 unsigned long flags;
2392 for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) {
2393 spin_lock_irqsave(&bnad->bna_lock, flags);
2394 bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid);
2395 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2399 /* Statistics utilities */
2401 bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats)
2405 for (i = 0; i < bnad->num_rx; i++) {
2406 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
2407 if (bnad->rx_info[i].rx_ctrl[j].ccb) {
2408 stats->rx_packets += bnad->rx_info[i].
2409 rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets;
2410 stats->rx_bytes += bnad->rx_info[i].
2411 rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes;
2412 if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] &&
2413 bnad->rx_info[i].rx_ctrl[j].ccb->
2415 stats->rx_packets +=
2416 bnad->rx_info[i].rx_ctrl[j].
2417 ccb->rcb[1]->rxq->rx_packets;
2419 bnad->rx_info[i].rx_ctrl[j].
2420 ccb->rcb[1]->rxq->rx_bytes;
2425 for (i = 0; i < bnad->num_tx; i++) {
2426 for (j = 0; j < bnad->num_txq_per_tx; j++) {
2427 if (bnad->tx_info[i].tcb[j]) {
2428 stats->tx_packets +=
2429 bnad->tx_info[i].tcb[j]->txq->tx_packets;
2431 bnad->tx_info[i].tcb[j]->txq->tx_bytes;
2438 * Must be called with the bna_lock held.
2441 bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats)
2443 struct bfi_enet_stats_mac *mac_stats;
2447 mac_stats = &bnad->stats.bna_stats->hw_stats.mac_stats;
2449 mac_stats->rx_fcs_error + mac_stats->rx_alignment_error +
2450 mac_stats->rx_frame_length_error + mac_stats->rx_code_error +
2451 mac_stats->rx_undersize;
2452 stats->tx_errors = mac_stats->tx_fcs_error +
2453 mac_stats->tx_undersize;
2454 stats->rx_dropped = mac_stats->rx_drop;
2455 stats->tx_dropped = mac_stats->tx_drop;
2456 stats->multicast = mac_stats->rx_multicast;
2457 stats->collisions = mac_stats->tx_total_collision;
2459 stats->rx_length_errors = mac_stats->rx_frame_length_error;
2461 /* receive ring buffer overflow ?? */
2463 stats->rx_crc_errors = mac_stats->rx_fcs_error;
2464 stats->rx_frame_errors = mac_stats->rx_alignment_error;
2465 /* recv'r fifo overrun */
2466 bmap = bna_rx_rid_mask(&bnad->bna);
2467 for (i = 0; bmap; i++) {
2469 stats->rx_fifo_errors +=
2470 bnad->stats.bna_stats->
2471 hw_stats.rxf_stats[i].frame_drops;
2479 bnad_mbox_irq_sync(struct bnad *bnad)
2482 unsigned long flags;
2484 spin_lock_irqsave(&bnad->bna_lock, flags);
2485 if (bnad->cfg_flags & BNAD_CF_MSIX)
2486 irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector;
2488 irq = bnad->pcidev->irq;
2489 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2491 synchronize_irq(irq);
2494 /* Utility used by bnad_start_xmit, for doing TSO */
2496 bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb)
2500 err = skb_cow_head(skb, 0);
2502 BNAD_UPDATE_CTR(bnad, tso_err);
2507 * For TSO, the TCP checksum field is seeded with pseudo-header sum
2508 * excluding the length field.
2510 if (vlan_get_protocol(skb) == htons(ETH_P_IP)) {
2511 struct iphdr *iph = ip_hdr(skb);
2513 /* Do we really need these? */
2517 tcp_hdr(skb)->check =
2518 ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
2520 BNAD_UPDATE_CTR(bnad, tso4);
2522 struct ipv6hdr *ipv6h = ipv6_hdr(skb);
2524 ipv6h->payload_len = 0;
2525 tcp_hdr(skb)->check =
2526 ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0,
2528 BNAD_UPDATE_CTR(bnad, tso6);
2535 * Initialize Q numbers depending on Rx Paths
2536 * Called with bnad->bna_lock held, because of cfg_flags
2540 bnad_q_num_init(struct bnad *bnad)
2544 rxps = min((uint)num_online_cpus(),
2545 (uint)(BNAD_MAX_RX * BNAD_MAX_RXP_PER_RX));
2547 if (!(bnad->cfg_flags & BNAD_CF_MSIX))
2548 rxps = 1; /* INTx */
2552 bnad->num_rxp_per_rx = rxps;
2553 bnad->num_txq_per_tx = BNAD_TXQ_NUM;
2557 * Adjusts the Q numbers, given a number of msix vectors
2558 * Give preference to RSS as opposed to Tx priority Queues,
2559 * in such a case, just use 1 Tx Q
2560 * Called with bnad->bna_lock held b'cos of cfg_flags access
2563 bnad_q_num_adjust(struct bnad *bnad, int msix_vectors, int temp)
2565 bnad->num_txq_per_tx = 1;
2566 if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) +
2567 bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) &&
2568 (bnad->cfg_flags & BNAD_CF_MSIX)) {
2569 bnad->num_rxp_per_rx = msix_vectors -
2570 (bnad->num_tx * bnad->num_txq_per_tx) -
2571 BNAD_MAILBOX_MSIX_VECTORS;
2573 bnad->num_rxp_per_rx = 1;
2576 /* Enable / disable ioceth */
2578 bnad_ioceth_disable(struct bnad *bnad)
2580 unsigned long flags;
2583 spin_lock_irqsave(&bnad->bna_lock, flags);
2584 init_completion(&bnad->bnad_completions.ioc_comp);
2585 bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP);
2586 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2588 wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp,
2589 msecs_to_jiffies(BNAD_IOCETH_TIMEOUT));
2591 err = bnad->bnad_completions.ioc_comp_status;
2596 bnad_ioceth_enable(struct bnad *bnad)
2599 unsigned long flags;
2601 spin_lock_irqsave(&bnad->bna_lock, flags);
2602 init_completion(&bnad->bnad_completions.ioc_comp);
2603 bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING;
2604 bna_ioceth_enable(&bnad->bna.ioceth);
2605 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2607 wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp,
2608 msecs_to_jiffies(BNAD_IOCETH_TIMEOUT));
2610 err = bnad->bnad_completions.ioc_comp_status;
2615 /* Free BNA resources */
2617 bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info,
2622 for (i = 0; i < res_val_max; i++)
2623 bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
2626 /* Allocates memory and interrupt resources for BNA */
2628 bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
2633 for (i = 0; i < res_val_max; i++) {
2634 err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info);
2641 bnad_res_free(bnad, res_info, res_val_max);
2645 /* Interrupt enable / disable */
2647 bnad_enable_msix(struct bnad *bnad)
2650 unsigned long flags;
2652 spin_lock_irqsave(&bnad->bna_lock, flags);
2653 if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
2654 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2657 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2659 if (bnad->msix_table)
2663 kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL);
2665 if (!bnad->msix_table)
2668 for (i = 0; i < bnad->msix_num; i++)
2669 bnad->msix_table[i].entry = i;
2671 ret = pci_enable_msix_range(bnad->pcidev, bnad->msix_table,
2675 } else if (ret < bnad->msix_num) {
2676 pr_warn("BNA: %d MSI-X vectors allocated < %d requested\n",
2677 ret, bnad->msix_num);
2679 spin_lock_irqsave(&bnad->bna_lock, flags);
2680 /* ret = #of vectors that we got */
2681 bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2,
2682 (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2);
2683 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2685 bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP +
2686 BNAD_MAILBOX_MSIX_VECTORS;
2688 if (bnad->msix_num > ret) {
2689 pci_disable_msix(bnad->pcidev);
2694 pci_intx(bnad->pcidev, 0);
2699 pr_warn("BNA: MSI-X enable failed - operating in INTx mode\n");
2701 kfree(bnad->msix_table);
2702 bnad->msix_table = NULL;
2704 spin_lock_irqsave(&bnad->bna_lock, flags);
2705 bnad->cfg_flags &= ~BNAD_CF_MSIX;
2706 bnad_q_num_init(bnad);
2707 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2711 bnad_disable_msix(struct bnad *bnad)
2714 unsigned long flags;
2716 spin_lock_irqsave(&bnad->bna_lock, flags);
2717 cfg_flags = bnad->cfg_flags;
2718 if (bnad->cfg_flags & BNAD_CF_MSIX)
2719 bnad->cfg_flags &= ~BNAD_CF_MSIX;
2720 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2722 if (cfg_flags & BNAD_CF_MSIX) {
2723 pci_disable_msix(bnad->pcidev);
2724 kfree(bnad->msix_table);
2725 bnad->msix_table = NULL;
2729 /* Netdev entry points */
2731 bnad_open(struct net_device *netdev)
2734 struct bnad *bnad = netdev_priv(netdev);
2735 struct bna_pause_config pause_config;
2736 unsigned long flags;
2738 mutex_lock(&bnad->conf_mutex);
2741 err = bnad_setup_tx(bnad, 0);
2746 err = bnad_setup_rx(bnad, 0);
2751 pause_config.tx_pause = 0;
2752 pause_config.rx_pause = 0;
2754 spin_lock_irqsave(&bnad->bna_lock, flags);
2755 bna_enet_mtu_set(&bnad->bna.enet,
2756 BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL);
2757 bna_enet_pause_config(&bnad->bna.enet, &pause_config, NULL);
2758 bna_enet_enable(&bnad->bna.enet);
2759 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2761 /* Enable broadcast */
2762 bnad_enable_default_bcast(bnad);
2764 /* Restore VLANs, if any */
2765 bnad_restore_vlans(bnad, 0);
2767 /* Set the UCAST address */
2768 spin_lock_irqsave(&bnad->bna_lock, flags);
2769 bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
2770 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2772 /* Start the stats timer */
2773 bnad_stats_timer_start(bnad);
2775 mutex_unlock(&bnad->conf_mutex);
2780 bnad_destroy_tx(bnad, 0);
2783 mutex_unlock(&bnad->conf_mutex);
2788 bnad_stop(struct net_device *netdev)
2790 struct bnad *bnad = netdev_priv(netdev);
2791 unsigned long flags;
2793 mutex_lock(&bnad->conf_mutex);
2795 /* Stop the stats timer */
2796 bnad_stats_timer_stop(bnad);
2798 init_completion(&bnad->bnad_completions.enet_comp);
2800 spin_lock_irqsave(&bnad->bna_lock, flags);
2801 bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP,
2802 bnad_cb_enet_disabled);
2803 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2805 wait_for_completion(&bnad->bnad_completions.enet_comp);
2807 bnad_destroy_tx(bnad, 0);
2808 bnad_destroy_rx(bnad, 0);
2810 /* Synchronize mailbox IRQ */
2811 bnad_mbox_irq_sync(bnad);
2813 mutex_unlock(&bnad->conf_mutex);
2819 /* Returns 0 for success */
2821 bnad_txq_wi_prepare(struct bnad *bnad, struct bna_tcb *tcb,
2822 struct sk_buff *skb, struct bna_txq_entry *txqent)
2828 if (skb_vlan_tag_present(skb)) {
2829 vlan_tag = (u16)skb_vlan_tag_get(skb);
2830 flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
2832 if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) {
2833 vlan_tag = ((tcb->priority & 0x7) << VLAN_PRIO_SHIFT)
2834 | (vlan_tag & 0x1fff);
2835 flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
2837 txqent->hdr.wi.vlan_tag = htons(vlan_tag);
2839 if (skb_is_gso(skb)) {
2840 gso_size = skb_shinfo(skb)->gso_size;
2841 if (unlikely(gso_size > bnad->netdev->mtu)) {
2842 BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long);
2845 if (unlikely((gso_size + skb_transport_offset(skb) +
2846 tcp_hdrlen(skb)) >= skb->len)) {
2847 txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND);
2848 txqent->hdr.wi.lso_mss = 0;
2849 BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short);
2851 txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND_LSO);
2852 txqent->hdr.wi.lso_mss = htons(gso_size);
2855 if (bnad_tso_prepare(bnad, skb)) {
2856 BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare);
2860 flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM);
2861 txqent->hdr.wi.l4_hdr_size_n_offset =
2862 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET(
2863 tcp_hdrlen(skb) >> 2, skb_transport_offset(skb)));
2865 txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND);
2866 txqent->hdr.wi.lso_mss = 0;
2868 if (unlikely(skb->len > (bnad->netdev->mtu + VLAN_ETH_HLEN))) {
2869 BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long);
2873 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2874 __be16 net_proto = vlan_get_protocol(skb);
2877 if (net_proto == htons(ETH_P_IP))
2878 proto = ip_hdr(skb)->protocol;
2879 #ifdef NETIF_F_IPV6_CSUM
2880 else if (net_proto == htons(ETH_P_IPV6)) {
2881 /* nexthdr may not be TCP immediately. */
2882 proto = ipv6_hdr(skb)->nexthdr;
2885 if (proto == IPPROTO_TCP) {
2886 flags |= BNA_TXQ_WI_CF_TCP_CKSUM;
2887 txqent->hdr.wi.l4_hdr_size_n_offset =
2888 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2889 (0, skb_transport_offset(skb)));
2891 BNAD_UPDATE_CTR(bnad, tcpcsum_offload);
2893 if (unlikely(skb_headlen(skb) <
2894 skb_transport_offset(skb) +
2896 BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr);
2899 } else if (proto == IPPROTO_UDP) {
2900 flags |= BNA_TXQ_WI_CF_UDP_CKSUM;
2901 txqent->hdr.wi.l4_hdr_size_n_offset =
2902 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2903 (0, skb_transport_offset(skb)));
2905 BNAD_UPDATE_CTR(bnad, udpcsum_offload);
2906 if (unlikely(skb_headlen(skb) <
2907 skb_transport_offset(skb) +
2908 sizeof(struct udphdr))) {
2909 BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr);
2914 BNAD_UPDATE_CTR(bnad, tx_skb_csum_err);
2918 txqent->hdr.wi.l4_hdr_size_n_offset = 0;
2921 txqent->hdr.wi.flags = htons(flags);
2922 txqent->hdr.wi.frame_length = htonl(skb->len);
2928 * bnad_start_xmit : Netdev entry point for Transmit
2929 * Called under lock held by net_device
2932 bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev)
2934 struct bnad *bnad = netdev_priv(netdev);
2936 struct bna_tcb *tcb = NULL;
2937 struct bnad_tx_unmap *unmap_q, *unmap, *head_unmap;
2938 u32 prod, q_depth, vect_id;
2939 u32 wis, vectors, len;
2941 dma_addr_t dma_addr;
2942 struct bna_txq_entry *txqent;
2944 len = skb_headlen(skb);
2946 /* Sanity checks for the skb */
2948 if (unlikely(skb->len <= ETH_HLEN)) {
2949 dev_kfree_skb_any(skb);
2950 BNAD_UPDATE_CTR(bnad, tx_skb_too_short);
2951 return NETDEV_TX_OK;
2953 if (unlikely(len > BFI_TX_MAX_DATA_PER_VECTOR)) {
2954 dev_kfree_skb_any(skb);
2955 BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero);
2956 return NETDEV_TX_OK;
2958 if (unlikely(len == 0)) {
2959 dev_kfree_skb_any(skb);
2960 BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero);
2961 return NETDEV_TX_OK;
2964 tcb = bnad->tx_info[0].tcb[txq_id];
2967 * Takes care of the Tx that is scheduled between clearing the flag
2968 * and the netif_tx_stop_all_queues() call.
2970 if (unlikely(!tcb || !test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) {
2971 dev_kfree_skb_any(skb);
2972 BNAD_UPDATE_CTR(bnad, tx_skb_stopping);
2973 return NETDEV_TX_OK;
2976 q_depth = tcb->q_depth;
2977 prod = tcb->producer_index;
2978 unmap_q = tcb->unmap_q;
2980 vectors = 1 + skb_shinfo(skb)->nr_frags;
2981 wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */
2983 if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) {
2984 dev_kfree_skb_any(skb);
2985 BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors);
2986 return NETDEV_TX_OK;
2989 /* Check for available TxQ resources */
2990 if (unlikely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) {
2991 if ((*tcb->hw_consumer_index != tcb->consumer_index) &&
2992 !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
2994 sent = bnad_txcmpl_process(bnad, tcb);
2995 if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
2996 bna_ib_ack(tcb->i_dbell, sent);
2997 smp_mb__before_atomic();
2998 clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
3000 netif_stop_queue(netdev);
3001 BNAD_UPDATE_CTR(bnad, netif_queue_stop);
3006 * Check again to deal with race condition between
3007 * netif_stop_queue here, and netif_wake_queue in
3008 * interrupt handler which is not inside netif tx lock.
3010 if (likely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) {
3011 BNAD_UPDATE_CTR(bnad, netif_queue_stop);
3012 return NETDEV_TX_BUSY;
3014 netif_wake_queue(netdev);
3015 BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
3019 txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod];
3020 head_unmap = &unmap_q[prod];
3022 /* Program the opcode, flags, frame_len, num_vectors in WI */
3023 if (bnad_txq_wi_prepare(bnad, tcb, skb, txqent)) {
3024 dev_kfree_skb_any(skb);
3025 return NETDEV_TX_OK;
3027 txqent->hdr.wi.reserved = 0;
3028 txqent->hdr.wi.num_vectors = vectors;
3030 head_unmap->skb = skb;
3031 head_unmap->nvecs = 0;
3033 /* Program the vectors */
3035 dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
3036 len, DMA_TO_DEVICE);
3037 BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr);
3038 txqent->vector[0].length = htons(len);
3039 dma_unmap_addr_set(&unmap->vectors[0], dma_addr, dma_addr);
3040 head_unmap->nvecs++;
3042 for (i = 0, vect_id = 0; i < vectors - 1; i++) {
3043 const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
3044 u32 size = skb_frag_size(frag);
3046 if (unlikely(size == 0)) {
3047 /* Undo the changes starting at tcb->producer_index */
3048 bnad_tx_buff_unmap(bnad, unmap_q, q_depth,
3049 tcb->producer_index);
3050 dev_kfree_skb_any(skb);
3051 BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero);
3052 return NETDEV_TX_OK;
3058 if (vect_id == BFI_TX_MAX_VECTORS_PER_WI) {
3060 BNA_QE_INDX_INC(prod, q_depth);
3061 txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod];
3062 txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION);
3063 unmap = &unmap_q[prod];
3066 dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag,
3067 0, size, DMA_TO_DEVICE);
3068 dma_unmap_len_set(&unmap->vectors[vect_id], dma_len, size);
3069 BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
3070 txqent->vector[vect_id].length = htons(size);
3071 dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr,
3073 head_unmap->nvecs++;
3076 if (unlikely(len != skb->len)) {
3077 /* Undo the changes starting at tcb->producer_index */
3078 bnad_tx_buff_unmap(bnad, unmap_q, q_depth, tcb->producer_index);
3079 dev_kfree_skb_any(skb);
3080 BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch);
3081 return NETDEV_TX_OK;
3084 BNA_QE_INDX_INC(prod, q_depth);
3085 tcb->producer_index = prod;
3089 if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
3090 return NETDEV_TX_OK;
3092 skb_tx_timestamp(skb);
3094 bna_txq_prod_indx_doorbell(tcb);
3097 return NETDEV_TX_OK;
3101 * Used spin_lock to synchronize reading of stats structures, which
3102 * is written by BNA under the same lock.
3104 static struct rtnl_link_stats64 *
3105 bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
3107 struct bnad *bnad = netdev_priv(netdev);
3108 unsigned long flags;
3110 spin_lock_irqsave(&bnad->bna_lock, flags);
3112 bnad_netdev_qstats_fill(bnad, stats);
3113 bnad_netdev_hwstats_fill(bnad, stats);
3115 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3121 bnad_set_rx_ucast_fltr(struct bnad *bnad)
3123 struct net_device *netdev = bnad->netdev;
3124 int uc_count = netdev_uc_count(netdev);
3125 enum bna_cb_status ret;
3127 struct netdev_hw_addr *ha;
3130 if (netdev_uc_empty(bnad->netdev)) {
3131 bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL, NULL);
3135 if (uc_count > bna_attr(&bnad->bna)->num_ucmac)
3138 mac_list = kzalloc(uc_count * ETH_ALEN, GFP_ATOMIC);
3139 if (mac_list == NULL)
3143 netdev_for_each_uc_addr(ha, netdev) {
3144 memcpy(&mac_list[entry * ETH_ALEN],
3145 &ha->addr[0], ETH_ALEN);
3149 ret = bna_rx_ucast_listset(bnad->rx_info[0].rx, entry,
3153 if (ret != BNA_CB_SUCCESS)
3158 /* ucast packets not in UCAM are routed to default function */
3160 bnad->cfg_flags |= BNAD_CF_DEFAULT;
3161 bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL, NULL);
3165 bnad_set_rx_mcast_fltr(struct bnad *bnad)
3167 struct net_device *netdev = bnad->netdev;
3168 int mc_count = netdev_mc_count(netdev);
3169 enum bna_cb_status ret;
3172 if (netdev->flags & IFF_ALLMULTI)
3175 if (netdev_mc_empty(netdev))
3178 if (mc_count > bna_attr(&bnad->bna)->num_mcmac)
3181 mac_list = kzalloc((mc_count + 1) * ETH_ALEN, GFP_ATOMIC);
3183 if (mac_list == NULL)
3186 memcpy(&mac_list[0], &bnad_bcast_addr[0], ETH_ALEN);
3188 /* copy rest of the MCAST addresses */
3189 bnad_netdev_mc_list_get(netdev, mac_list);
3190 ret = bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1,
3194 if (ret != BNA_CB_SUCCESS)
3200 bnad->cfg_flags |= BNAD_CF_ALLMULTI;
3201 bna_rx_mcast_delall(bnad->rx_info[0].rx, NULL);
3205 bnad_set_rx_mode(struct net_device *netdev)
3207 struct bnad *bnad = netdev_priv(netdev);
3208 enum bna_rxmode new_mode, mode_mask;
3209 unsigned long flags;
3211 spin_lock_irqsave(&bnad->bna_lock, flags);
3213 if (bnad->rx_info[0].rx == NULL) {
3214 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3218 /* clear bnad flags to update it with new settings */
3219 bnad->cfg_flags &= ~(BNAD_CF_PROMISC | BNAD_CF_DEFAULT |
3223 if (netdev->flags & IFF_PROMISC) {
3224 new_mode |= BNAD_RXMODE_PROMISC_DEFAULT;
3225 bnad->cfg_flags |= BNAD_CF_PROMISC;
3227 bnad_set_rx_mcast_fltr(bnad);
3229 if (bnad->cfg_flags & BNAD_CF_ALLMULTI)
3230 new_mode |= BNA_RXMODE_ALLMULTI;
3232 bnad_set_rx_ucast_fltr(bnad);
3234 if (bnad->cfg_flags & BNAD_CF_DEFAULT)
3235 new_mode |= BNA_RXMODE_DEFAULT;
3238 mode_mask = BNA_RXMODE_PROMISC | BNA_RXMODE_DEFAULT |
3239 BNA_RXMODE_ALLMULTI;
3240 bna_rx_mode_set(bnad->rx_info[0].rx, new_mode, mode_mask, NULL);
3242 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3246 * bna_lock is used to sync writes to netdev->addr
3247 * conf_lock cannot be used since this call may be made
3248 * in a non-blocking context.
3251 bnad_set_mac_address(struct net_device *netdev, void *mac_addr)
3254 struct bnad *bnad = netdev_priv(netdev);
3255 struct sockaddr *sa = (struct sockaddr *)mac_addr;
3256 unsigned long flags;
3258 spin_lock_irqsave(&bnad->bna_lock, flags);
3260 err = bnad_mac_addr_set_locked(bnad, sa->sa_data);
3263 memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len);
3265 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3271 bnad_mtu_set(struct bnad *bnad, int frame_size)
3273 unsigned long flags;
3275 init_completion(&bnad->bnad_completions.mtu_comp);
3277 spin_lock_irqsave(&bnad->bna_lock, flags);
3278 bna_enet_mtu_set(&bnad->bna.enet, frame_size, bnad_cb_enet_mtu_set);
3279 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3281 wait_for_completion(&bnad->bnad_completions.mtu_comp);
3283 return bnad->bnad_completions.mtu_comp_status;
3287 bnad_change_mtu(struct net_device *netdev, int new_mtu)
3290 struct bnad *bnad = netdev_priv(netdev);
3291 u32 rx_count = 0, frame, new_frame;
3293 if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU)
3296 mutex_lock(&bnad->conf_mutex);
3299 netdev->mtu = new_mtu;
3301 frame = BNAD_FRAME_SIZE(mtu);
3302 new_frame = BNAD_FRAME_SIZE(new_mtu);
3304 /* check if multi-buffer needs to be enabled */
3305 if (BNAD_PCI_DEV_IS_CAT2(bnad) &&
3306 netif_running(bnad->netdev)) {
3307 /* only when transition is over 4K */
3308 if ((frame <= 4096 && new_frame > 4096) ||
3309 (frame > 4096 && new_frame <= 4096))
3310 rx_count = bnad_reinit_rx(bnad);
3313 /* rx_count > 0 - new rx created
3314 * - Linux set err = 0 and return
3316 err = bnad_mtu_set(bnad, new_frame);
3320 mutex_unlock(&bnad->conf_mutex);
3325 bnad_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
3327 struct bnad *bnad = netdev_priv(netdev);
3328 unsigned long flags;
3330 if (!bnad->rx_info[0].rx)
3333 mutex_lock(&bnad->conf_mutex);
3335 spin_lock_irqsave(&bnad->bna_lock, flags);
3336 bna_rx_vlan_add(bnad->rx_info[0].rx, vid);
3337 set_bit(vid, bnad->active_vlans);
3338 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3340 mutex_unlock(&bnad->conf_mutex);
3346 bnad_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
3348 struct bnad *bnad = netdev_priv(netdev);
3349 unsigned long flags;
3351 if (!bnad->rx_info[0].rx)
3354 mutex_lock(&bnad->conf_mutex);
3356 spin_lock_irqsave(&bnad->bna_lock, flags);
3357 clear_bit(vid, bnad->active_vlans);
3358 bna_rx_vlan_del(bnad->rx_info[0].rx, vid);
3359 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3361 mutex_unlock(&bnad->conf_mutex);
3366 static int bnad_set_features(struct net_device *dev, netdev_features_t features)
3368 struct bnad *bnad = netdev_priv(dev);
3369 netdev_features_t changed = features ^ dev->features;
3371 if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && netif_running(dev)) {
3372 unsigned long flags;
3374 spin_lock_irqsave(&bnad->bna_lock, flags);
3376 if (features & NETIF_F_HW_VLAN_CTAG_RX)
3377 bna_rx_vlan_strip_enable(bnad->rx_info[0].rx);
3379 bna_rx_vlan_strip_disable(bnad->rx_info[0].rx);
3381 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3387 #ifdef CONFIG_NET_POLL_CONTROLLER
3389 bnad_netpoll(struct net_device *netdev)
3391 struct bnad *bnad = netdev_priv(netdev);
3392 struct bnad_rx_info *rx_info;
3393 struct bnad_rx_ctrl *rx_ctrl;
3397 if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
3398 bna_intx_disable(&bnad->bna, curr_mask);
3399 bnad_isr(bnad->pcidev->irq, netdev);
3400 bna_intx_enable(&bnad->bna, curr_mask);
3403 * Tx processing may happen in sending context, so no need
3404 * to explicitly process completions here
3408 for (i = 0; i < bnad->num_rx; i++) {
3409 rx_info = &bnad->rx_info[i];
3412 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
3413 rx_ctrl = &rx_info->rx_ctrl[j];
3415 bnad_netif_rx_schedule_poll(bnad,
3423 static const struct net_device_ops bnad_netdev_ops = {
3424 .ndo_open = bnad_open,
3425 .ndo_stop = bnad_stop,
3426 .ndo_start_xmit = bnad_start_xmit,
3427 .ndo_get_stats64 = bnad_get_stats64,
3428 .ndo_set_rx_mode = bnad_set_rx_mode,
3429 .ndo_validate_addr = eth_validate_addr,
3430 .ndo_set_mac_address = bnad_set_mac_address,
3431 .ndo_change_mtu = bnad_change_mtu,
3432 .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid,
3433 .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid,
3434 .ndo_set_features = bnad_set_features,
3435 #ifdef CONFIG_NET_POLL_CONTROLLER
3436 .ndo_poll_controller = bnad_netpoll
3441 bnad_netdev_init(struct bnad *bnad, bool using_dac)
3443 struct net_device *netdev = bnad->netdev;
3445 netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
3446 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
3447 NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_TX |
3448 NETIF_F_HW_VLAN_CTAG_RX;
3450 netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA |
3451 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
3452 NETIF_F_TSO | NETIF_F_TSO6;
3454 netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
3457 netdev->features |= NETIF_F_HIGHDMA;
3459 netdev->mem_start = bnad->mmio_start;
3460 netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1;
3462 netdev->netdev_ops = &bnad_netdev_ops;
3463 bnad_set_ethtool_ops(netdev);
3467 * 1. Initialize the bnad structure
3468 * 2. Setup netdev pointer in pci_dev
3469 * 3. Initialize no. of TxQ & CQs & MSIX vectors
3470 * 4. Initialize work queue.
3473 bnad_init(struct bnad *bnad,
3474 struct pci_dev *pdev, struct net_device *netdev)
3476 unsigned long flags;
3478 SET_NETDEV_DEV(netdev, &pdev->dev);
3479 pci_set_drvdata(pdev, netdev);
3481 bnad->netdev = netdev;
3482 bnad->pcidev = pdev;
3483 bnad->mmio_start = pci_resource_start(pdev, 0);
3484 bnad->mmio_len = pci_resource_len(pdev, 0);
3485 bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len);
3487 dev_err(&pdev->dev, "ioremap for bar0 failed\n");
3490 pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0,
3491 (unsigned long long) bnad->mmio_len);
3493 spin_lock_irqsave(&bnad->bna_lock, flags);
3494 if (!bnad_msix_disable)
3495 bnad->cfg_flags = BNAD_CF_MSIX;
3497 bnad->cfg_flags |= BNAD_CF_DIM_ENABLED;
3499 bnad_q_num_init(bnad);
3500 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3502 bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) +
3503 (bnad->num_rx * bnad->num_rxp_per_rx) +
3504 BNAD_MAILBOX_MSIX_VECTORS;
3506 bnad->txq_depth = BNAD_TXQ_DEPTH;
3507 bnad->rxq_depth = BNAD_RXQ_DEPTH;
3509 bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO;
3510 bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO;
3512 sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id);
3513 bnad->work_q = create_singlethread_workqueue(bnad->wq_name);
3514 if (!bnad->work_q) {
3515 iounmap(bnad->bar0);
3523 * Must be called after bnad_pci_uninit()
3524 * so that iounmap() and pci_set_drvdata(NULL)
3525 * happens only after PCI uninitialization.
3528 bnad_uninit(struct bnad *bnad)
3531 flush_workqueue(bnad->work_q);
3532 destroy_workqueue(bnad->work_q);
3533 bnad->work_q = NULL;
3537 iounmap(bnad->bar0);
3542 a) Per ioceth mutes used for serializing configuration
3543 changes from OS interface
3544 b) spin lock used to protect bna state machine
3547 bnad_lock_init(struct bnad *bnad)
3549 spin_lock_init(&bnad->bna_lock);
3550 mutex_init(&bnad->conf_mutex);
3551 mutex_init(&bnad_list_mutex);
3555 bnad_lock_uninit(struct bnad *bnad)
3557 mutex_destroy(&bnad->conf_mutex);
3558 mutex_destroy(&bnad_list_mutex);
3561 /* PCI Initialization */
3563 bnad_pci_init(struct bnad *bnad,
3564 struct pci_dev *pdev, bool *using_dac)
3568 err = pci_enable_device(pdev);
3571 err = pci_request_regions(pdev, BNAD_NAME);
3573 goto disable_device;
3574 if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
3577 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
3579 goto release_regions;
3582 pci_set_master(pdev);
3586 pci_release_regions(pdev);
3588 pci_disable_device(pdev);
3594 bnad_pci_uninit(struct pci_dev *pdev)
3596 pci_release_regions(pdev);
3597 pci_disable_device(pdev);
3601 bnad_pci_probe(struct pci_dev *pdev,
3602 const struct pci_device_id *pcidev_id)
3608 struct net_device *netdev;
3609 struct bfa_pcidev pcidev_info;
3610 unsigned long flags;
3612 pr_info("bnad_pci_probe : (0x%p, 0x%p) PCI Func : (%d)\n",
3613 pdev, pcidev_id, PCI_FUNC(pdev->devfn));
3615 mutex_lock(&bnad_fwimg_mutex);
3616 if (!cna_get_firmware_buf(pdev)) {
3617 mutex_unlock(&bnad_fwimg_mutex);
3618 pr_warn("Failed to load Firmware Image!\n");
3621 mutex_unlock(&bnad_fwimg_mutex);
3624 * Allocates sizeof(struct net_device + struct bnad)
3625 * bnad = netdev->priv
3627 netdev = alloc_etherdev(sizeof(struct bnad));
3632 bnad = netdev_priv(netdev);
3633 bnad_lock_init(bnad);
3634 bnad_add_to_list(bnad);
3636 mutex_lock(&bnad->conf_mutex);
3638 * PCI initialization
3639 * Output : using_dac = 1 for 64 bit DMA
3640 * = 0 for 32 bit DMA
3643 err = bnad_pci_init(bnad, pdev, &using_dac);
3648 * Initialize bnad structure
3649 * Setup relation between pci_dev & netdev
3651 err = bnad_init(bnad, pdev, netdev);
3655 /* Initialize netdev structure, set up ethtool ops */
3656 bnad_netdev_init(bnad, using_dac);
3658 /* Set link to down state */
3659 netif_carrier_off(netdev);
3661 /* Setup the debugfs node for this bfad */
3662 if (bna_debugfs_enable)
3663 bnad_debugfs_init(bnad);
3665 /* Get resource requirement form bna */
3666 spin_lock_irqsave(&bnad->bna_lock, flags);
3667 bna_res_req(&bnad->res_info[0]);
3668 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3670 /* Allocate resources from bna */
3671 err = bnad_res_alloc(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
3677 /* Setup pcidev_info for bna_init() */
3678 pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn);
3679 pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn);
3680 pcidev_info.device_id = bnad->pcidev->device;
3681 pcidev_info.pci_bar_kva = bnad->bar0;
3683 spin_lock_irqsave(&bnad->bna_lock, flags);
3684 bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]);
3685 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3687 bnad->stats.bna_stats = &bna->stats;
3689 bnad_enable_msix(bnad);
3690 err = bnad_mbox_irq_alloc(bnad);
3695 setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout,
3696 ((unsigned long)bnad));
3697 setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check,
3698 ((unsigned long)bnad));
3699 setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout,
3700 ((unsigned long)bnad));
3701 setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout,
3702 ((unsigned long)bnad));
3706 * If the call back comes with error, we bail out.
3707 * This is a catastrophic error.
3709 err = bnad_ioceth_enable(bnad);
3711 pr_err("BNA: Initialization failed err=%d\n",
3716 spin_lock_irqsave(&bnad->bna_lock, flags);
3717 if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) ||
3718 bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) {
3719 bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1,
3720 bna_attr(bna)->num_rxp - 1);
3721 if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) ||
3722 bna_num_rxp_set(bna, BNAD_NUM_RXP + 1))
3725 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3727 goto disable_ioceth;
3729 spin_lock_irqsave(&bnad->bna_lock, flags);
3730 bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]);
3731 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3733 err = bnad_res_alloc(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
3736 goto disable_ioceth;
3739 spin_lock_irqsave(&bnad->bna_lock, flags);
3740 bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]);
3741 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3743 /* Get the burnt-in mac */
3744 spin_lock_irqsave(&bnad->bna_lock, flags);
3745 bna_enet_perm_mac_get(&bna->enet, &bnad->perm_addr);
3746 bnad_set_netdev_perm_addr(bnad);
3747 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3749 mutex_unlock(&bnad->conf_mutex);
3751 /* Finally, reguister with net_device layer */
3752 err = register_netdev(netdev);
3754 pr_err("BNA : Registering with netdev failed\n");
3757 set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags);
3762 mutex_unlock(&bnad->conf_mutex);
3766 mutex_lock(&bnad->conf_mutex);
3767 bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
3769 bnad_ioceth_disable(bnad);
3770 del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer);
3771 del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer);
3772 del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer);
3773 spin_lock_irqsave(&bnad->bna_lock, flags);
3775 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3776 bnad_mbox_irq_free(bnad);
3777 bnad_disable_msix(bnad);
3779 bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
3781 /* Remove the debugfs node for this bnad */
3782 kfree(bnad->regdata);
3783 bnad_debugfs_uninit(bnad);
3786 bnad_pci_uninit(pdev);
3788 mutex_unlock(&bnad->conf_mutex);
3789 bnad_remove_from_list(bnad);
3790 bnad_lock_uninit(bnad);
3791 free_netdev(netdev);
3796 bnad_pci_remove(struct pci_dev *pdev)
3798 struct net_device *netdev = pci_get_drvdata(pdev);
3801 unsigned long flags;
3806 pr_info("%s bnad_pci_remove\n", netdev->name);
3807 bnad = netdev_priv(netdev);
3810 if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags))
3811 unregister_netdev(netdev);
3813 mutex_lock(&bnad->conf_mutex);
3814 bnad_ioceth_disable(bnad);
3815 del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer);
3816 del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer);
3817 del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer);
3818 spin_lock_irqsave(&bnad->bna_lock, flags);
3820 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3822 bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
3823 bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
3824 bnad_mbox_irq_free(bnad);
3825 bnad_disable_msix(bnad);
3826 bnad_pci_uninit(pdev);
3827 mutex_unlock(&bnad->conf_mutex);
3828 bnad_remove_from_list(bnad);
3829 bnad_lock_uninit(bnad);
3830 /* Remove the debugfs node for this bnad */
3831 kfree(bnad->regdata);
3832 bnad_debugfs_uninit(bnad);
3834 free_netdev(netdev);
3837 static const struct pci_device_id bnad_pci_id_table[] = {
3839 PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
3840 PCI_DEVICE_ID_BROCADE_CT),
3841 .class = PCI_CLASS_NETWORK_ETHERNET << 8,
3842 .class_mask = 0xffff00
3845 PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
3846 BFA_PCI_DEVICE_ID_CT2),
3847 .class = PCI_CLASS_NETWORK_ETHERNET << 8,
3848 .class_mask = 0xffff00
3853 MODULE_DEVICE_TABLE(pci, bnad_pci_id_table);
3855 static struct pci_driver bnad_pci_driver = {
3857 .id_table = bnad_pci_id_table,
3858 .probe = bnad_pci_probe,
3859 .remove = bnad_pci_remove,
3863 bnad_module_init(void)
3867 pr_info("QLogic BR-series 10G Ethernet driver - version: %s\n",
3870 bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover);
3872 err = pci_register_driver(&bnad_pci_driver);
3874 pr_err("bna : PCI registration failed in module init "
3883 bnad_module_exit(void)
3885 pci_unregister_driver(&bnad_pci_driver);
3886 release_firmware(bfi_fw);
3889 module_init(bnad_module_init);
3890 module_exit(bnad_module_exit);
3892 MODULE_AUTHOR("Brocade");
3893 MODULE_LICENSE("GPL");
3894 MODULE_DESCRIPTION("QLogic BR-series 10G PCIe Ethernet driver");
3895 MODULE_VERSION(BNAD_VERSION);
3896 MODULE_FIRMWARE(CNA_FW_FILE_CT);
3897 MODULE_FIRMWARE(CNA_FW_FILE_CT2);