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[] __aligned(2) =
61 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
66 #define BNAD_GET_MBOX_IRQ(_bnad) \
67 (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \
68 ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \
69 ((_bnad)->pcidev->irq))
71 #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _size) \
73 (_res_info)->res_type = BNA_RES_T_MEM; \
74 (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \
75 (_res_info)->res_u.mem_info.num = (_num); \
76 (_res_info)->res_u.mem_info.len = (_size); \
80 bnad_add_to_list(struct bnad *bnad)
82 mutex_lock(&bnad_list_mutex);
83 list_add_tail(&bnad->list_entry, &bnad_list);
85 mutex_unlock(&bnad_list_mutex);
89 bnad_remove_from_list(struct bnad *bnad)
91 mutex_lock(&bnad_list_mutex);
92 list_del(&bnad->list_entry);
93 mutex_unlock(&bnad_list_mutex);
97 * Reinitialize completions in CQ, once Rx is taken down
100 bnad_cq_cleanup(struct bnad *bnad, struct bna_ccb *ccb)
102 struct bna_cq_entry *cmpl;
105 for (i = 0; i < ccb->q_depth; i++) {
106 cmpl = &((struct bna_cq_entry *)ccb->sw_q)[i];
111 /* Tx Datapath functions */
114 /* Caller should ensure that the entry at unmap_q[index] is valid */
116 bnad_tx_buff_unmap(struct bnad *bnad,
117 struct bnad_tx_unmap *unmap_q,
118 u32 q_depth, u32 index)
120 struct bnad_tx_unmap *unmap;
124 unmap = &unmap_q[index];
125 nvecs = unmap->nvecs;
130 dma_unmap_single(&bnad->pcidev->dev,
131 dma_unmap_addr(&unmap->vectors[0], dma_addr),
132 skb_headlen(skb), DMA_TO_DEVICE);
133 dma_unmap_addr_set(&unmap->vectors[0], dma_addr, 0);
139 if (vector == BFI_TX_MAX_VECTORS_PER_WI) {
141 BNA_QE_INDX_INC(index, q_depth);
142 unmap = &unmap_q[index];
145 dma_unmap_page(&bnad->pcidev->dev,
146 dma_unmap_addr(&unmap->vectors[vector], dma_addr),
147 dma_unmap_len(&unmap->vectors[vector], dma_len),
149 dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0);
153 BNA_QE_INDX_INC(index, q_depth);
159 * Frees all pending Tx Bufs
160 * At this point no activity is expected on the Q,
161 * so DMA unmap & freeing is fine.
164 bnad_txq_cleanup(struct bnad *bnad, struct bna_tcb *tcb)
166 struct bnad_tx_unmap *unmap_q = tcb->unmap_q;
170 for (i = 0; i < tcb->q_depth; i++) {
171 skb = unmap_q[i].skb;
174 bnad_tx_buff_unmap(bnad, unmap_q, tcb->q_depth, i);
176 dev_kfree_skb_any(skb);
181 * bnad_txcmpl_process : Frees the Tx bufs on Tx completion
182 * Can be called in a) Interrupt context
186 bnad_txcmpl_process(struct bnad *bnad, struct bna_tcb *tcb)
188 u32 sent_packets = 0, sent_bytes = 0;
189 u32 wis, unmap_wis, hw_cons, cons, q_depth;
190 struct bnad_tx_unmap *unmap_q = tcb->unmap_q;
191 struct bnad_tx_unmap *unmap;
194 /* Just return if TX is stopped */
195 if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
198 hw_cons = *(tcb->hw_consumer_index);
199 cons = tcb->consumer_index;
200 q_depth = tcb->q_depth;
202 wis = BNA_Q_INDEX_CHANGE(cons, hw_cons, q_depth);
203 BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth)));
206 unmap = &unmap_q[cons];
211 sent_bytes += skb->len;
213 unmap_wis = BNA_TXQ_WI_NEEDED(unmap->nvecs);
216 cons = bnad_tx_buff_unmap(bnad, unmap_q, q_depth, cons);
217 dev_kfree_skb_any(skb);
220 /* Update consumer pointers. */
221 tcb->consumer_index = hw_cons;
223 tcb->txq->tx_packets += sent_packets;
224 tcb->txq->tx_bytes += sent_bytes;
230 bnad_tx_complete(struct bnad *bnad, struct bna_tcb *tcb)
232 struct net_device *netdev = bnad->netdev;
235 if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
238 sent = bnad_txcmpl_process(bnad, tcb);
240 if (netif_queue_stopped(netdev) &&
241 netif_carrier_ok(netdev) &&
242 BNA_QE_FREE_CNT(tcb, tcb->q_depth) >=
243 BNAD_NETIF_WAKE_THRESHOLD) {
244 if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) {
245 netif_wake_queue(netdev);
246 BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
251 if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
252 bna_ib_ack(tcb->i_dbell, sent);
254 smp_mb__before_atomic();
255 clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
260 /* MSIX Tx Completion Handler */
262 bnad_msix_tx(int irq, void *data)
264 struct bna_tcb *tcb = (struct bna_tcb *)data;
265 struct bnad *bnad = tcb->bnad;
267 bnad_tx_complete(bnad, tcb);
273 bnad_rxq_alloc_uninit(struct bnad *bnad, struct bna_rcb *rcb)
275 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
277 unmap_q->reuse_pi = -1;
278 unmap_q->alloc_order = -1;
279 unmap_q->map_size = 0;
280 unmap_q->type = BNAD_RXBUF_NONE;
283 /* Default is page-based allocation. Multi-buffer support - TBD */
285 bnad_rxq_alloc_init(struct bnad *bnad, struct bna_rcb *rcb)
287 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
290 bnad_rxq_alloc_uninit(bnad, rcb);
292 order = get_order(rcb->rxq->buffer_size);
294 unmap_q->type = BNAD_RXBUF_PAGE;
296 if (bna_is_small_rxq(rcb->id)) {
297 unmap_q->alloc_order = 0;
298 unmap_q->map_size = rcb->rxq->buffer_size;
300 if (rcb->rxq->multi_buffer) {
301 unmap_q->alloc_order = 0;
302 unmap_q->map_size = rcb->rxq->buffer_size;
303 unmap_q->type = BNAD_RXBUF_MULTI_BUFF;
305 unmap_q->alloc_order = order;
307 (rcb->rxq->buffer_size > 2048) ?
308 PAGE_SIZE << order : 2048;
312 BUG_ON((PAGE_SIZE << order) % unmap_q->map_size);
318 bnad_rxq_cleanup_page(struct bnad *bnad, struct bnad_rx_unmap *unmap)
323 dma_unmap_page(&bnad->pcidev->dev,
324 dma_unmap_addr(&unmap->vector, dma_addr),
325 unmap->vector.len, DMA_FROM_DEVICE);
326 put_page(unmap->page);
328 dma_unmap_addr_set(&unmap->vector, dma_addr, 0);
329 unmap->vector.len = 0;
333 bnad_rxq_cleanup_skb(struct bnad *bnad, struct bnad_rx_unmap *unmap)
338 dma_unmap_single(&bnad->pcidev->dev,
339 dma_unmap_addr(&unmap->vector, dma_addr),
340 unmap->vector.len, DMA_FROM_DEVICE);
341 dev_kfree_skb_any(unmap->skb);
343 dma_unmap_addr_set(&unmap->vector, dma_addr, 0);
344 unmap->vector.len = 0;
348 bnad_rxq_cleanup(struct bnad *bnad, struct bna_rcb *rcb)
350 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
353 for (i = 0; i < rcb->q_depth; i++) {
354 struct bnad_rx_unmap *unmap = &unmap_q->unmap[i];
356 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
357 bnad_rxq_cleanup_skb(bnad, unmap);
359 bnad_rxq_cleanup_page(bnad, unmap);
361 bnad_rxq_alloc_uninit(bnad, rcb);
365 bnad_rxq_refill_page(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc)
367 u32 alloced, prod, q_depth;
368 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
369 struct bnad_rx_unmap *unmap, *prev;
370 struct bna_rxq_entry *rxent;
372 u32 page_offset, alloc_size;
375 prod = rcb->producer_index;
376 q_depth = rcb->q_depth;
378 alloc_size = PAGE_SIZE << unmap_q->alloc_order;
382 unmap = &unmap_q->unmap[prod];
384 if (unmap_q->reuse_pi < 0) {
385 page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
386 unmap_q->alloc_order);
389 prev = &unmap_q->unmap[unmap_q->reuse_pi];
391 page_offset = prev->page_offset + unmap_q->map_size;
395 if (unlikely(!page)) {
396 BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
397 rcb->rxq->rxbuf_alloc_failed++;
401 dma_addr = dma_map_page(&bnad->pcidev->dev, page, page_offset,
402 unmap_q->map_size, DMA_FROM_DEVICE);
405 unmap->page_offset = page_offset;
406 dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr);
407 unmap->vector.len = unmap_q->map_size;
408 page_offset += unmap_q->map_size;
410 if (page_offset < alloc_size)
411 unmap_q->reuse_pi = prod;
413 unmap_q->reuse_pi = -1;
415 rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod];
416 BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
417 BNA_QE_INDX_INC(prod, q_depth);
422 if (likely(alloced)) {
423 rcb->producer_index = prod;
425 if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags)))
426 bna_rxq_prod_indx_doorbell(rcb);
433 bnad_rxq_refill_skb(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc)
435 u32 alloced, prod, q_depth, buff_sz;
436 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
437 struct bnad_rx_unmap *unmap;
438 struct bna_rxq_entry *rxent;
442 buff_sz = rcb->rxq->buffer_size;
443 prod = rcb->producer_index;
444 q_depth = rcb->q_depth;
448 unmap = &unmap_q->unmap[prod];
450 skb = netdev_alloc_skb_ip_align(bnad->netdev, buff_sz);
452 if (unlikely(!skb)) {
453 BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
454 rcb->rxq->rxbuf_alloc_failed++;
457 dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
458 buff_sz, DMA_FROM_DEVICE);
461 dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr);
462 unmap->vector.len = buff_sz;
464 rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod];
465 BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
466 BNA_QE_INDX_INC(prod, q_depth);
471 if (likely(alloced)) {
472 rcb->producer_index = prod;
474 if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags)))
475 bna_rxq_prod_indx_doorbell(rcb);
482 bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb)
484 struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
487 to_alloc = BNA_QE_FREE_CNT(rcb, rcb->q_depth);
488 if (!(to_alloc >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT))
491 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
492 bnad_rxq_refill_skb(bnad, rcb, to_alloc);
494 bnad_rxq_refill_page(bnad, rcb, to_alloc);
497 #define flags_cksum_prot_mask (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
499 BNA_CQ_EF_TCP | BNA_CQ_EF_UDP | \
500 BNA_CQ_EF_L4_CKSUM_OK)
502 #define flags_tcp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
503 BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK)
504 #define flags_tcp6 (BNA_CQ_EF_IPV6 | \
505 BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK)
506 #define flags_udp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
507 BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK)
508 #define flags_udp6 (BNA_CQ_EF_IPV6 | \
509 BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK)
512 bnad_cq_drop_packet(struct bnad *bnad, struct bna_rcb *rcb,
513 u32 sop_ci, u32 nvecs)
515 struct bnad_rx_unmap_q *unmap_q;
516 struct bnad_rx_unmap *unmap;
519 unmap_q = rcb->unmap_q;
520 for (vec = 0, ci = sop_ci; vec < nvecs; vec++) {
521 unmap = &unmap_q->unmap[ci];
522 BNA_QE_INDX_INC(ci, rcb->q_depth);
524 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
525 bnad_rxq_cleanup_skb(bnad, unmap);
527 bnad_rxq_cleanup_page(bnad, unmap);
532 bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
533 u32 sop_ci, u32 nvecs, u32 last_fraglen)
536 u32 ci, vec, len, totlen = 0;
537 struct bnad_rx_unmap_q *unmap_q;
538 struct bnad_rx_unmap *unmap;
540 unmap_q = rcb->unmap_q;
543 /* prefetch header */
544 prefetch(page_address(unmap_q->unmap[sop_ci].page) +
545 unmap_q->unmap[sop_ci].page_offset);
547 for (vec = 1, ci = sop_ci; vec <= nvecs; vec++) {
548 unmap = &unmap_q->unmap[ci];
549 BNA_QE_INDX_INC(ci, rcb->q_depth);
551 dma_unmap_page(&bnad->pcidev->dev,
552 dma_unmap_addr(&unmap->vector, dma_addr),
553 unmap->vector.len, DMA_FROM_DEVICE);
555 len = (vec == nvecs) ?
556 last_fraglen : unmap->vector.len;
557 skb->truesize += unmap->vector.len;
560 skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
561 unmap->page, unmap->page_offset, len);
564 unmap->vector.len = 0;
568 skb->data_len += totlen;
572 bnad_cq_setup_skb(struct bnad *bnad, struct sk_buff *skb,
573 struct bnad_rx_unmap *unmap, u32 len)
577 dma_unmap_single(&bnad->pcidev->dev,
578 dma_unmap_addr(&unmap->vector, dma_addr),
579 unmap->vector.len, DMA_FROM_DEVICE);
582 skb->protocol = eth_type_trans(skb, bnad->netdev);
585 unmap->vector.len = 0;
589 bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget)
591 struct bna_cq_entry *cq, *cmpl, *next_cmpl;
592 struct bna_rcb *rcb = NULL;
593 struct bnad_rx_unmap_q *unmap_q;
594 struct bnad_rx_unmap *unmap = NULL;
595 struct sk_buff *skb = NULL;
596 struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate;
597 struct bnad_rx_ctrl *rx_ctrl = ccb->ctrl;
598 u32 packets = 0, len = 0, totlen = 0;
599 u32 pi, vec, sop_ci = 0, nvecs = 0;
600 u32 flags, masked_flags;
602 prefetch(bnad->netdev);
606 while (packets < budget) {
607 cmpl = &cq[ccb->producer_index];
610 /* The 'valid' field is set by the adapter, only after writing
611 * the other fields of completion entry. Hence, do not load
612 * other fields of completion entry *before* the 'valid' is
613 * loaded. Adding the rmb() here prevents the compiler and/or
614 * CPU from reordering the reads which would potentially result
615 * in reading stale values in completion entry.
619 BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length));
621 if (bna_is_small_rxq(cmpl->rxq_id))
626 unmap_q = rcb->unmap_q;
628 /* start of packet ci */
629 sop_ci = rcb->consumer_index;
631 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) {
632 unmap = &unmap_q->unmap[sop_ci];
635 skb = napi_get_frags(&rx_ctrl->napi);
641 flags = ntohl(cmpl->flags);
642 len = ntohs(cmpl->length);
646 /* Check all the completions for this frame.
647 * busy-wait doesn't help much, break here.
649 if (BNAD_RXBUF_IS_MULTI_BUFF(unmap_q->type) &&
650 (flags & BNA_CQ_EF_EOP) == 0) {
651 pi = ccb->producer_index;
653 BNA_QE_INDX_INC(pi, ccb->q_depth);
656 if (!next_cmpl->valid)
658 /* The 'valid' field is set by the adapter, only
659 * after writing the other fields of completion
660 * entry. Hence, do not load other fields of
661 * completion entry *before* the 'valid' is
662 * loaded. Adding the rmb() here prevents the
663 * compiler and/or CPU from reordering the reads
664 * which would potentially result in reading
665 * stale values in completion entry.
669 len = ntohs(next_cmpl->length);
670 flags = ntohl(next_cmpl->flags);
674 } while ((flags & BNA_CQ_EF_EOP) == 0);
676 if (!next_cmpl->valid)
680 /* TODO: BNA_CQ_EF_LOCAL ? */
681 if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR |
682 BNA_CQ_EF_FCS_ERROR |
683 BNA_CQ_EF_TOO_LONG))) {
684 bnad_cq_drop_packet(bnad, rcb, sop_ci, nvecs);
685 rcb->rxq->rx_packets_with_error++;
690 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
691 bnad_cq_setup_skb(bnad, skb, unmap, len);
693 bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len);
696 rcb->rxq->rx_packets++;
697 rcb->rxq->rx_bytes += totlen;
698 ccb->bytes_per_intr += totlen;
700 masked_flags = flags & flags_cksum_prot_mask;
703 ((bnad->netdev->features & NETIF_F_RXCSUM) &&
704 ((masked_flags == flags_tcp4) ||
705 (masked_flags == flags_udp4) ||
706 (masked_flags == flags_tcp6) ||
707 (masked_flags == flags_udp6))))
708 skb->ip_summed = CHECKSUM_UNNECESSARY;
710 skb_checksum_none_assert(skb);
712 if ((flags & BNA_CQ_EF_VLAN) &&
713 (bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX))
714 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(cmpl->vlan_tag));
716 if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
717 netif_receive_skb(skb);
719 napi_gro_frags(&rx_ctrl->napi);
722 BNA_QE_INDX_ADD(rcb->consumer_index, nvecs, rcb->q_depth);
723 for (vec = 0; vec < nvecs; vec++) {
724 cmpl = &cq[ccb->producer_index];
726 BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth);
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 ether_addr_copy(netdev->perm_addr, bnad->perm_addr);
879 if (is_zero_ether_addr(netdev->dev_addr))
880 ether_addr_copy(netdev->dev_addr, bnad->perm_addr);
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 netdev_info(bnad->netdev, "link up\n");
950 netif_carrier_on(bnad->netdev);
951 BNAD_UPDATE_CTR(bnad, link_toggle);
952 for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) {
953 for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx;
955 struct bna_tcb *tcb =
956 bnad->tx_info[tx_id].tcb[tcb_id];
963 if (test_bit(BNAD_TXQ_TX_STARTED,
967 * Transmit Schedule */
971 BNAD_UPDATE_CTR(bnad,
977 BNAD_UPDATE_CTR(bnad,
984 if (netif_carrier_ok(bnad->netdev)) {
985 netdev_info(bnad->netdev, "link down\n");
986 netif_carrier_off(bnad->netdev);
987 BNAD_UPDATE_CTR(bnad, link_toggle);
993 bnad_cb_tx_disabled(void *arg, struct bna_tx *tx)
995 struct bnad *bnad = (struct bnad *)arg;
997 complete(&bnad->bnad_completions.tx_comp);
1001 bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb)
1003 struct bnad_tx_info *tx_info =
1004 (struct bnad_tx_info *)tcb->txq->tx->priv;
1007 tx_info->tcb[tcb->id] = tcb;
1011 bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb)
1013 struct bnad_tx_info *tx_info =
1014 (struct bnad_tx_info *)tcb->txq->tx->priv;
1016 tx_info->tcb[tcb->id] = NULL;
1021 bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb)
1023 struct bnad_rx_info *rx_info =
1024 (struct bnad_rx_info *)ccb->cq->rx->priv;
1026 rx_info->rx_ctrl[ccb->id].ccb = ccb;
1027 ccb->ctrl = &rx_info->rx_ctrl[ccb->id];
1031 bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb)
1033 struct bnad_rx_info *rx_info =
1034 (struct bnad_rx_info *)ccb->cq->rx->priv;
1036 rx_info->rx_ctrl[ccb->id].ccb = NULL;
1040 bnad_cb_tx_stall(struct bnad *bnad, struct bna_tx *tx)
1042 struct bnad_tx_info *tx_info =
1043 (struct bnad_tx_info *)tx->priv;
1044 struct bna_tcb *tcb;
1048 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1049 tcb = tx_info->tcb[i];
1053 clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
1054 netif_stop_subqueue(bnad->netdev, txq_id);
1059 bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx)
1061 struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv;
1062 struct bna_tcb *tcb;
1066 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1067 tcb = tx_info->tcb[i];
1072 BUG_ON(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags));
1073 set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
1074 BUG_ON(*(tcb->hw_consumer_index) != 0);
1076 if (netif_carrier_ok(bnad->netdev)) {
1077 netif_wake_subqueue(bnad->netdev, txq_id);
1078 BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
1083 * Workaround for first ioceth enable failure & we
1084 * get a 0 MAC address. We try to get the MAC address
1087 if (is_zero_ether_addr(bnad->perm_addr)) {
1088 bna_enet_perm_mac_get(&bnad->bna.enet, bnad->perm_addr);
1089 bnad_set_netdev_perm_addr(bnad);
1094 * Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm.
1097 bnad_tx_cleanup(struct delayed_work *work)
1099 struct bnad_tx_info *tx_info =
1100 container_of(work, struct bnad_tx_info, tx_cleanup_work);
1101 struct bnad *bnad = NULL;
1102 struct bna_tcb *tcb;
1103 unsigned long flags;
1106 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1107 tcb = tx_info->tcb[i];
1113 if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
1118 bnad_txq_cleanup(bnad, tcb);
1120 smp_mb__before_atomic();
1121 clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
1125 queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work,
1126 msecs_to_jiffies(1));
1130 spin_lock_irqsave(&bnad->bna_lock, flags);
1131 bna_tx_cleanup_complete(tx_info->tx);
1132 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1136 bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx)
1138 struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv;
1139 struct bna_tcb *tcb;
1142 for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
1143 tcb = tx_info->tcb[i];
1148 queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, 0);
1152 bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx)
1154 struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
1155 struct bna_ccb *ccb;
1156 struct bnad_rx_ctrl *rx_ctrl;
1159 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1160 rx_ctrl = &rx_info->rx_ctrl[i];
1165 clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags);
1168 clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags);
1173 * Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm.
1176 bnad_rx_cleanup(void *work)
1178 struct bnad_rx_info *rx_info =
1179 container_of(work, struct bnad_rx_info, rx_cleanup_work);
1180 struct bnad_rx_ctrl *rx_ctrl;
1181 struct bnad *bnad = NULL;
1182 unsigned long flags;
1185 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1186 rx_ctrl = &rx_info->rx_ctrl[i];
1191 bnad = rx_ctrl->ccb->bnad;
1194 * Wait till the poll handler has exited
1195 * and nothing can be scheduled anymore
1197 napi_disable(&rx_ctrl->napi);
1199 bnad_cq_cleanup(bnad, rx_ctrl->ccb);
1200 bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[0]);
1201 if (rx_ctrl->ccb->rcb[1])
1202 bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[1]);
1205 spin_lock_irqsave(&bnad->bna_lock, flags);
1206 bna_rx_cleanup_complete(rx_info->rx);
1207 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1211 bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx)
1213 struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
1214 struct bna_ccb *ccb;
1215 struct bnad_rx_ctrl *rx_ctrl;
1218 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1219 rx_ctrl = &rx_info->rx_ctrl[i];
1224 clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags);
1227 clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags);
1230 queue_work(bnad->work_q, &rx_info->rx_cleanup_work);
1234 bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx)
1236 struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
1237 struct bna_ccb *ccb;
1238 struct bna_rcb *rcb;
1239 struct bnad_rx_ctrl *rx_ctrl;
1242 for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
1243 rx_ctrl = &rx_info->rx_ctrl[i];
1248 napi_enable(&rx_ctrl->napi);
1250 for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) {
1255 bnad_rxq_alloc_init(bnad, rcb);
1256 set_bit(BNAD_RXQ_STARTED, &rcb->flags);
1257 set_bit(BNAD_RXQ_POST_OK, &rcb->flags);
1258 bnad_rxq_post(bnad, rcb);
1264 bnad_cb_rx_disabled(void *arg, struct bna_rx *rx)
1266 struct bnad *bnad = (struct bnad *)arg;
1268 complete(&bnad->bnad_completions.rx_comp);
1272 bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx)
1274 bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS;
1275 complete(&bnad->bnad_completions.mcast_comp);
1279 bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status,
1280 struct bna_stats *stats)
1282 if (status == BNA_CB_SUCCESS)
1283 BNAD_UPDATE_CTR(bnad, hw_stats_updates);
1285 if (!netif_running(bnad->netdev) ||
1286 !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
1289 mod_timer(&bnad->stats_timer,
1290 jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
1294 bnad_cb_enet_mtu_set(struct bnad *bnad)
1296 bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS;
1297 complete(&bnad->bnad_completions.mtu_comp);
1301 bnad_cb_completion(void *arg, enum bfa_status status)
1303 struct bnad_iocmd_comp *iocmd_comp =
1304 (struct bnad_iocmd_comp *)arg;
1306 iocmd_comp->comp_status = (u32) status;
1307 complete(&iocmd_comp->comp);
1310 /* Resource allocation, free functions */
1313 bnad_mem_free(struct bnad *bnad,
1314 struct bna_mem_info *mem_info)
1319 if (mem_info->mdl == NULL)
1322 for (i = 0; i < mem_info->num; i++) {
1323 if (mem_info->mdl[i].kva != NULL) {
1324 if (mem_info->mem_type == BNA_MEM_T_DMA) {
1325 BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma),
1327 dma_free_coherent(&bnad->pcidev->dev,
1328 mem_info->mdl[i].len,
1329 mem_info->mdl[i].kva, dma_pa);
1331 kfree(mem_info->mdl[i].kva);
1334 kfree(mem_info->mdl);
1335 mem_info->mdl = NULL;
1339 bnad_mem_alloc(struct bnad *bnad,
1340 struct bna_mem_info *mem_info)
1345 if ((mem_info->num == 0) || (mem_info->len == 0)) {
1346 mem_info->mdl = NULL;
1350 mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr),
1352 if (mem_info->mdl == NULL)
1355 if (mem_info->mem_type == BNA_MEM_T_DMA) {
1356 for (i = 0; i < mem_info->num; i++) {
1357 mem_info->mdl[i].len = mem_info->len;
1358 mem_info->mdl[i].kva =
1359 dma_alloc_coherent(&bnad->pcidev->dev,
1360 mem_info->len, &dma_pa,
1362 if (mem_info->mdl[i].kva == NULL)
1365 BNA_SET_DMA_ADDR(dma_pa,
1366 &(mem_info->mdl[i].dma));
1369 for (i = 0; i < mem_info->num; i++) {
1370 mem_info->mdl[i].len = mem_info->len;
1371 mem_info->mdl[i].kva = kzalloc(mem_info->len,
1373 if (mem_info->mdl[i].kva == NULL)
1381 bnad_mem_free(bnad, mem_info);
1385 /* Free IRQ for Mailbox */
1387 bnad_mbox_irq_free(struct bnad *bnad)
1390 unsigned long flags;
1392 spin_lock_irqsave(&bnad->bna_lock, flags);
1393 bnad_disable_mbox_irq(bnad);
1394 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1396 irq = BNAD_GET_MBOX_IRQ(bnad);
1397 free_irq(irq, bnad);
1401 * Allocates IRQ for Mailbox, but keep it disabled
1402 * This will be enabled once we get the mbox enable callback
1406 bnad_mbox_irq_alloc(struct bnad *bnad)
1409 unsigned long irq_flags, flags;
1411 irq_handler_t irq_handler;
1413 spin_lock_irqsave(&bnad->bna_lock, flags);
1414 if (bnad->cfg_flags & BNAD_CF_MSIX) {
1415 irq_handler = (irq_handler_t)bnad_msix_mbox_handler;
1416 irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector;
1419 irq_handler = (irq_handler_t)bnad_isr;
1420 irq = bnad->pcidev->irq;
1421 irq_flags = IRQF_SHARED;
1424 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1425 sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME);
1428 * Set the Mbox IRQ disable flag, so that the IRQ handler
1429 * called from request_irq() for SHARED IRQs do not execute
1431 set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
1433 BNAD_UPDATE_CTR(bnad, mbox_intr_disabled);
1435 err = request_irq(irq, irq_handler, irq_flags,
1436 bnad->mbox_irq_name, bnad);
1442 bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info)
1444 kfree(intr_info->idl);
1445 intr_info->idl = NULL;
1448 /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */
1450 bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src,
1451 u32 txrx_id, struct bna_intr_info *intr_info)
1453 int i, vector_start = 0;
1455 unsigned long flags;
1457 spin_lock_irqsave(&bnad->bna_lock, flags);
1458 cfg_flags = bnad->cfg_flags;
1459 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1461 if (cfg_flags & BNAD_CF_MSIX) {
1462 intr_info->intr_type = BNA_INTR_T_MSIX;
1463 intr_info->idl = kcalloc(intr_info->num,
1464 sizeof(struct bna_intr_descr),
1466 if (!intr_info->idl)
1471 vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id;
1475 vector_start = BNAD_MAILBOX_MSIX_VECTORS +
1476 (bnad->num_tx * bnad->num_txq_per_tx) +
1484 for (i = 0; i < intr_info->num; i++)
1485 intr_info->idl[i].vector = vector_start + i;
1487 intr_info->intr_type = BNA_INTR_T_INTX;
1489 intr_info->idl = kcalloc(intr_info->num,
1490 sizeof(struct bna_intr_descr),
1492 if (!intr_info->idl)
1497 intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK;
1501 intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK;
1508 /* NOTE: Should be called for MSIX only
1509 * Unregisters Tx MSIX vector(s) from the kernel
1512 bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info,
1518 for (i = 0; i < num_txqs; i++) {
1519 if (tx_info->tcb[i] == NULL)
1522 vector_num = tx_info->tcb[i]->intr_vector;
1523 free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]);
1527 /* NOTE: Should be called for MSIX only
1528 * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
1531 bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info,
1532 u32 tx_id, int num_txqs)
1538 for (i = 0; i < num_txqs; i++) {
1539 vector_num = tx_info->tcb[i]->intr_vector;
1540 sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name,
1541 tx_id + tx_info->tcb[i]->id);
1542 err = request_irq(bnad->msix_table[vector_num].vector,
1543 (irq_handler_t)bnad_msix_tx, 0,
1544 tx_info->tcb[i]->name,
1554 bnad_tx_msix_unregister(bnad, tx_info, (i - 1));
1558 /* NOTE: Should be called for MSIX only
1559 * Unregisters Rx MSIX vector(s) from the kernel
1562 bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info,
1568 for (i = 0; i < num_rxps; i++) {
1569 if (rx_info->rx_ctrl[i].ccb == NULL)
1572 vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
1573 free_irq(bnad->msix_table[vector_num].vector,
1574 rx_info->rx_ctrl[i].ccb);
1578 /* NOTE: Should be called for MSIX only
1579 * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
1582 bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info,
1583 u32 rx_id, int num_rxps)
1589 for (i = 0; i < num_rxps; i++) {
1590 vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
1591 sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d",
1593 rx_id + rx_info->rx_ctrl[i].ccb->id);
1594 err = request_irq(bnad->msix_table[vector_num].vector,
1595 (irq_handler_t)bnad_msix_rx, 0,
1596 rx_info->rx_ctrl[i].ccb->name,
1597 rx_info->rx_ctrl[i].ccb);
1606 bnad_rx_msix_unregister(bnad, rx_info, (i - 1));
1610 /* Free Tx object Resources */
1612 bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
1616 for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
1617 if (res_info[i].res_type == BNA_RES_T_MEM)
1618 bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
1619 else if (res_info[i].res_type == BNA_RES_T_INTR)
1620 bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
1624 /* Allocates memory and interrupt resources for Tx object */
1626 bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
1631 for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
1632 if (res_info[i].res_type == BNA_RES_T_MEM)
1633 err = bnad_mem_alloc(bnad,
1634 &res_info[i].res_u.mem_info);
1635 else if (res_info[i].res_type == BNA_RES_T_INTR)
1636 err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id,
1637 &res_info[i].res_u.intr_info);
1644 bnad_tx_res_free(bnad, res_info);
1648 /* Free Rx object Resources */
1650 bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
1654 for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
1655 if (res_info[i].res_type == BNA_RES_T_MEM)
1656 bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
1657 else if (res_info[i].res_type == BNA_RES_T_INTR)
1658 bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
1662 /* Allocates memory and interrupt resources for Rx object */
1664 bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
1669 /* All memory needs to be allocated before setup_ccbs */
1670 for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
1671 if (res_info[i].res_type == BNA_RES_T_MEM)
1672 err = bnad_mem_alloc(bnad,
1673 &res_info[i].res_u.mem_info);
1674 else if (res_info[i].res_type == BNA_RES_T_INTR)
1675 err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id,
1676 &res_info[i].res_u.intr_info);
1683 bnad_rx_res_free(bnad, res_info);
1687 /* Timer callbacks */
1690 bnad_ioc_timeout(unsigned long data)
1692 struct bnad *bnad = (struct bnad *)data;
1693 unsigned long flags;
1695 spin_lock_irqsave(&bnad->bna_lock, flags);
1696 bfa_nw_ioc_timeout(&bnad->bna.ioceth.ioc);
1697 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1701 bnad_ioc_hb_check(unsigned long data)
1703 struct bnad *bnad = (struct bnad *)data;
1704 unsigned long flags;
1706 spin_lock_irqsave(&bnad->bna_lock, flags);
1707 bfa_nw_ioc_hb_check(&bnad->bna.ioceth.ioc);
1708 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1712 bnad_iocpf_timeout(unsigned long data)
1714 struct bnad *bnad = (struct bnad *)data;
1715 unsigned long flags;
1717 spin_lock_irqsave(&bnad->bna_lock, flags);
1718 bfa_nw_iocpf_timeout(&bnad->bna.ioceth.ioc);
1719 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1723 bnad_iocpf_sem_timeout(unsigned long data)
1725 struct bnad *bnad = (struct bnad *)data;
1726 unsigned long flags;
1728 spin_lock_irqsave(&bnad->bna_lock, flags);
1729 bfa_nw_iocpf_sem_timeout(&bnad->bna.ioceth.ioc);
1730 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1734 * All timer routines use bnad->bna_lock to protect against
1735 * the following race, which may occur in case of no locking:
1743 /* b) Dynamic Interrupt Moderation Timer */
1745 bnad_dim_timeout(unsigned long data)
1747 struct bnad *bnad = (struct bnad *)data;
1748 struct bnad_rx_info *rx_info;
1749 struct bnad_rx_ctrl *rx_ctrl;
1751 unsigned long flags;
1753 if (!netif_carrier_ok(bnad->netdev))
1756 spin_lock_irqsave(&bnad->bna_lock, flags);
1757 for (i = 0; i < bnad->num_rx; i++) {
1758 rx_info = &bnad->rx_info[i];
1761 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
1762 rx_ctrl = &rx_info->rx_ctrl[j];
1765 bna_rx_dim_update(rx_ctrl->ccb);
1769 /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */
1770 if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags))
1771 mod_timer(&bnad->dim_timer,
1772 jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
1773 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1776 /* c) Statistics Timer */
1778 bnad_stats_timeout(unsigned long data)
1780 struct bnad *bnad = (struct bnad *)data;
1781 unsigned long flags;
1783 if (!netif_running(bnad->netdev) ||
1784 !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
1787 spin_lock_irqsave(&bnad->bna_lock, flags);
1788 bna_hw_stats_get(&bnad->bna);
1789 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1793 * Set up timer for DIM
1794 * Called with bnad->bna_lock held
1797 bnad_dim_timer_start(struct bnad *bnad)
1799 if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
1800 !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
1801 setup_timer(&bnad->dim_timer, bnad_dim_timeout,
1802 (unsigned long)bnad);
1803 set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
1804 mod_timer(&bnad->dim_timer,
1805 jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
1810 * Set up timer for statistics
1811 * Called with mutex_lock(&bnad->conf_mutex) held
1814 bnad_stats_timer_start(struct bnad *bnad)
1816 unsigned long flags;
1818 spin_lock_irqsave(&bnad->bna_lock, flags);
1819 if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) {
1820 setup_timer(&bnad->stats_timer, bnad_stats_timeout,
1821 (unsigned long)bnad);
1822 mod_timer(&bnad->stats_timer,
1823 jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
1825 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1829 * Stops the stats timer
1830 * Called with mutex_lock(&bnad->conf_mutex) held
1833 bnad_stats_timer_stop(struct bnad *bnad)
1836 unsigned long flags;
1838 spin_lock_irqsave(&bnad->bna_lock, flags);
1839 if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
1841 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1843 del_timer_sync(&bnad->stats_timer);
1849 bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list)
1851 int i = 1; /* Index 0 has broadcast address */
1852 struct netdev_hw_addr *mc_addr;
1854 netdev_for_each_mc_addr(mc_addr, netdev) {
1855 ether_addr_copy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0]);
1861 bnad_napi_poll_rx(struct napi_struct *napi, int budget)
1863 struct bnad_rx_ctrl *rx_ctrl =
1864 container_of(napi, struct bnad_rx_ctrl, napi);
1865 struct bnad *bnad = rx_ctrl->bnad;
1868 rx_ctrl->rx_poll_ctr++;
1870 if (!netif_carrier_ok(bnad->netdev))
1873 rcvd = bnad_cq_process(bnad, rx_ctrl->ccb, budget);
1878 napi_complete(napi);
1880 rx_ctrl->rx_complete++;
1883 bnad_enable_rx_irq_unsafe(rx_ctrl->ccb);
1888 #define BNAD_NAPI_POLL_QUOTA 64
1890 bnad_napi_add(struct bnad *bnad, u32 rx_id)
1892 struct bnad_rx_ctrl *rx_ctrl;
1895 /* Initialize & enable NAPI */
1896 for (i = 0; i < bnad->num_rxp_per_rx; i++) {
1897 rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i];
1898 netif_napi_add(bnad->netdev, &rx_ctrl->napi,
1899 bnad_napi_poll_rx, BNAD_NAPI_POLL_QUOTA);
1904 bnad_napi_delete(struct bnad *bnad, u32 rx_id)
1908 /* First disable and then clean up */
1909 for (i = 0; i < bnad->num_rxp_per_rx; i++)
1910 netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
1913 /* Should be held with conf_lock held */
1915 bnad_destroy_tx(struct bnad *bnad, u32 tx_id)
1917 struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
1918 struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
1919 unsigned long flags;
1924 init_completion(&bnad->bnad_completions.tx_comp);
1925 spin_lock_irqsave(&bnad->bna_lock, flags);
1926 bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled);
1927 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1928 wait_for_completion(&bnad->bnad_completions.tx_comp);
1930 if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX)
1931 bnad_tx_msix_unregister(bnad, tx_info,
1932 bnad->num_txq_per_tx);
1934 spin_lock_irqsave(&bnad->bna_lock, flags);
1935 bna_tx_destroy(tx_info->tx);
1936 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1941 bnad_tx_res_free(bnad, res_info);
1944 /* Should be held with conf_lock held */
1946 bnad_setup_tx(struct bnad *bnad, u32 tx_id)
1949 struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
1950 struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
1951 struct bna_intr_info *intr_info =
1952 &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info;
1953 struct bna_tx_config *tx_config = &bnad->tx_config[tx_id];
1954 static const struct bna_tx_event_cbfn tx_cbfn = {
1955 .tcb_setup_cbfn = bnad_cb_tcb_setup,
1956 .tcb_destroy_cbfn = bnad_cb_tcb_destroy,
1957 .tx_stall_cbfn = bnad_cb_tx_stall,
1958 .tx_resume_cbfn = bnad_cb_tx_resume,
1959 .tx_cleanup_cbfn = bnad_cb_tx_cleanup,
1963 unsigned long flags;
1965 tx_info->tx_id = tx_id;
1967 /* Initialize the Tx object configuration */
1968 tx_config->num_txq = bnad->num_txq_per_tx;
1969 tx_config->txq_depth = bnad->txq_depth;
1970 tx_config->tx_type = BNA_TX_T_REGULAR;
1971 tx_config->coalescing_timeo = bnad->tx_coalescing_timeo;
1973 /* Get BNA's resource requirement for one tx object */
1974 spin_lock_irqsave(&bnad->bna_lock, flags);
1975 bna_tx_res_req(bnad->num_txq_per_tx,
1976 bnad->txq_depth, res_info);
1977 spin_unlock_irqrestore(&bnad->bna_lock, flags);
1979 /* Fill Unmap Q memory requirements */
1980 BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_TX_RES_MEM_T_UNMAPQ],
1981 bnad->num_txq_per_tx, (sizeof(struct bnad_tx_unmap) *
1984 /* Allocate resources */
1985 err = bnad_tx_res_alloc(bnad, res_info, tx_id);
1989 /* Ask BNA to create one Tx object, supplying required resources */
1990 spin_lock_irqsave(&bnad->bna_lock, flags);
1991 tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info,
1993 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2000 INIT_DELAYED_WORK(&tx_info->tx_cleanup_work,
2001 (work_func_t)bnad_tx_cleanup);
2003 /* Register ISR for the Tx object */
2004 if (intr_info->intr_type == BNA_INTR_T_MSIX) {
2005 err = bnad_tx_msix_register(bnad, tx_info,
2006 tx_id, bnad->num_txq_per_tx);
2011 spin_lock_irqsave(&bnad->bna_lock, flags);
2013 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2018 spin_lock_irqsave(&bnad->bna_lock, flags);
2019 bna_tx_destroy(tx_info->tx);
2020 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2024 bnad_tx_res_free(bnad, res_info);
2028 /* Setup the rx config for bna_rx_create */
2029 /* bnad decides the configuration */
2031 bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config)
2033 memset(rx_config, 0, sizeof(*rx_config));
2034 rx_config->rx_type = BNA_RX_T_REGULAR;
2035 rx_config->num_paths = bnad->num_rxp_per_rx;
2036 rx_config->coalescing_timeo = bnad->rx_coalescing_timeo;
2038 if (bnad->num_rxp_per_rx > 1) {
2039 rx_config->rss_status = BNA_STATUS_T_ENABLED;
2040 rx_config->rss_config.hash_type =
2041 (BFI_ENET_RSS_IPV6 |
2042 BFI_ENET_RSS_IPV6_TCP |
2044 BFI_ENET_RSS_IPV4_TCP);
2045 rx_config->rss_config.hash_mask =
2046 bnad->num_rxp_per_rx - 1;
2047 netdev_rss_key_fill(rx_config->rss_config.toeplitz_hash_key,
2048 sizeof(rx_config->rss_config.toeplitz_hash_key));
2050 rx_config->rss_status = BNA_STATUS_T_DISABLED;
2051 memset(&rx_config->rss_config, 0,
2052 sizeof(rx_config->rss_config));
2055 rx_config->frame_size = BNAD_FRAME_SIZE(bnad->netdev->mtu);
2056 rx_config->q0_multi_buf = BNA_STATUS_T_DISABLED;
2058 /* BNA_RXP_SINGLE - one data-buffer queue
2059 * BNA_RXP_SLR - one small-buffer and one large-buffer queues
2060 * BNA_RXP_HDS - one header-buffer and one data-buffer queues
2062 /* TODO: configurable param for queue type */
2063 rx_config->rxp_type = BNA_RXP_SLR;
2065 if (BNAD_PCI_DEV_IS_CAT2(bnad) &&
2066 rx_config->frame_size > 4096) {
2067 /* though size_routing_enable is set in SLR,
2068 * small packets may get routed to same rxq.
2069 * set buf_size to 2048 instead of PAGE_SIZE.
2071 rx_config->q0_buf_size = 2048;
2072 /* this should be in multiples of 2 */
2073 rx_config->q0_num_vecs = 4;
2074 rx_config->q0_depth = bnad->rxq_depth * rx_config->q0_num_vecs;
2075 rx_config->q0_multi_buf = BNA_STATUS_T_ENABLED;
2077 rx_config->q0_buf_size = rx_config->frame_size;
2078 rx_config->q0_num_vecs = 1;
2079 rx_config->q0_depth = bnad->rxq_depth;
2082 /* initialize for q1 for BNA_RXP_SLR/BNA_RXP_HDS */
2083 if (rx_config->rxp_type == BNA_RXP_SLR) {
2084 rx_config->q1_depth = bnad->rxq_depth;
2085 rx_config->q1_buf_size = BFI_SMALL_RXBUF_SIZE;
2088 rx_config->vlan_strip_status =
2089 (bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) ?
2090 BNA_STATUS_T_ENABLED : BNA_STATUS_T_DISABLED;
2094 bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id)
2096 struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
2099 for (i = 0; i < bnad->num_rxp_per_rx; i++)
2100 rx_info->rx_ctrl[i].bnad = bnad;
2103 /* Called with mutex_lock(&bnad->conf_mutex) held */
2105 bnad_reinit_rx(struct bnad *bnad)
2107 struct net_device *netdev = bnad->netdev;
2108 u32 err = 0, current_err = 0;
2109 u32 rx_id = 0, count = 0;
2110 unsigned long flags;
2112 /* destroy and create new rx objects */
2113 for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) {
2114 if (!bnad->rx_info[rx_id].rx)
2116 bnad_destroy_rx(bnad, rx_id);
2119 spin_lock_irqsave(&bnad->bna_lock, flags);
2120 bna_enet_mtu_set(&bnad->bna.enet,
2121 BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL);
2122 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2124 for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) {
2126 current_err = bnad_setup_rx(bnad, rx_id);
2127 if (current_err && !err) {
2129 netdev_err(netdev, "RXQ:%u setup failed\n", rx_id);
2133 /* restore rx configuration */
2134 if (bnad->rx_info[0].rx && !err) {
2135 bnad_restore_vlans(bnad, 0);
2136 bnad_enable_default_bcast(bnad);
2137 spin_lock_irqsave(&bnad->bna_lock, flags);
2138 bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
2139 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2140 bnad_set_rx_mode(netdev);
2146 /* Called with bnad_conf_lock() held */
2148 bnad_destroy_rx(struct bnad *bnad, u32 rx_id)
2150 struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
2151 struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
2152 struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
2153 unsigned long flags;
2160 spin_lock_irqsave(&bnad->bna_lock, flags);
2161 if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
2162 test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
2163 clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
2166 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2168 del_timer_sync(&bnad->dim_timer);
2171 init_completion(&bnad->bnad_completions.rx_comp);
2172 spin_lock_irqsave(&bnad->bna_lock, flags);
2173 bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled);
2174 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2175 wait_for_completion(&bnad->bnad_completions.rx_comp);
2177 if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX)
2178 bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths);
2180 bnad_napi_delete(bnad, rx_id);
2182 spin_lock_irqsave(&bnad->bna_lock, flags);
2183 bna_rx_destroy(rx_info->rx);
2187 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2189 bnad_rx_res_free(bnad, res_info);
2192 /* Called with mutex_lock(&bnad->conf_mutex) held */
2194 bnad_setup_rx(struct bnad *bnad, u32 rx_id)
2197 struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
2198 struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
2199 struct bna_intr_info *intr_info =
2200 &res_info[BNA_RX_RES_T_INTR].res_u.intr_info;
2201 struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
2202 static const struct bna_rx_event_cbfn rx_cbfn = {
2203 .rcb_setup_cbfn = NULL,
2204 .rcb_destroy_cbfn = NULL,
2205 .ccb_setup_cbfn = bnad_cb_ccb_setup,
2206 .ccb_destroy_cbfn = bnad_cb_ccb_destroy,
2207 .rx_stall_cbfn = bnad_cb_rx_stall,
2208 .rx_cleanup_cbfn = bnad_cb_rx_cleanup,
2209 .rx_post_cbfn = bnad_cb_rx_post,
2212 unsigned long flags;
2214 rx_info->rx_id = rx_id;
2216 /* Initialize the Rx object configuration */
2217 bnad_init_rx_config(bnad, rx_config);
2219 /* Get BNA's resource requirement for one Rx object */
2220 spin_lock_irqsave(&bnad->bna_lock, flags);
2221 bna_rx_res_req(rx_config, res_info);
2222 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2224 /* Fill Unmap Q memory requirements */
2225 BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPDQ],
2226 rx_config->num_paths,
2227 (rx_config->q0_depth *
2228 sizeof(struct bnad_rx_unmap)) +
2229 sizeof(struct bnad_rx_unmap_q));
2231 if (rx_config->rxp_type != BNA_RXP_SINGLE) {
2232 BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPHQ],
2233 rx_config->num_paths,
2234 (rx_config->q1_depth *
2235 sizeof(struct bnad_rx_unmap) +
2236 sizeof(struct bnad_rx_unmap_q)));
2238 /* Allocate resource */
2239 err = bnad_rx_res_alloc(bnad, res_info, rx_id);
2243 bnad_rx_ctrl_init(bnad, rx_id);
2245 /* Ask BNA to create one Rx object, supplying required resources */
2246 spin_lock_irqsave(&bnad->bna_lock, flags);
2247 rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info,
2251 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2255 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2257 INIT_WORK(&rx_info->rx_cleanup_work,
2258 (work_func_t)(bnad_rx_cleanup));
2261 * Init NAPI, so that state is set to NAPI_STATE_SCHED,
2262 * so that IRQ handler cannot schedule NAPI at this point.
2264 bnad_napi_add(bnad, rx_id);
2266 /* Register ISR for the Rx object */
2267 if (intr_info->intr_type == BNA_INTR_T_MSIX) {
2268 err = bnad_rx_msix_register(bnad, rx_info, rx_id,
2269 rx_config->num_paths);
2274 spin_lock_irqsave(&bnad->bna_lock, flags);
2276 /* Set up Dynamic Interrupt Moderation Vector */
2277 if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED)
2278 bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector);
2280 /* Enable VLAN filtering only on the default Rx */
2281 bna_rx_vlanfilter_enable(rx);
2283 /* Start the DIM timer */
2284 bnad_dim_timer_start(bnad);
2288 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2293 bnad_destroy_rx(bnad, rx_id);
2297 /* Called with conf_lock & bnad->bna_lock held */
2299 bnad_tx_coalescing_timeo_set(struct bnad *bnad)
2301 struct bnad_tx_info *tx_info;
2303 tx_info = &bnad->tx_info[0];
2307 bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo);
2310 /* Called with conf_lock & bnad->bna_lock held */
2312 bnad_rx_coalescing_timeo_set(struct bnad *bnad)
2314 struct bnad_rx_info *rx_info;
2317 for (i = 0; i < bnad->num_rx; i++) {
2318 rx_info = &bnad->rx_info[i];
2321 bna_rx_coalescing_timeo_set(rx_info->rx,
2322 bnad->rx_coalescing_timeo);
2327 * Called with bnad->bna_lock held
2330 bnad_mac_addr_set_locked(struct bnad *bnad, const u8 *mac_addr)
2334 if (!is_valid_ether_addr(mac_addr))
2335 return -EADDRNOTAVAIL;
2337 /* If datapath is down, pretend everything went through */
2338 if (!bnad->rx_info[0].rx)
2341 ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr);
2342 if (ret != BNA_CB_SUCCESS)
2343 return -EADDRNOTAVAIL;
2348 /* Should be called with conf_lock held */
2350 bnad_enable_default_bcast(struct bnad *bnad)
2352 struct bnad_rx_info *rx_info = &bnad->rx_info[0];
2354 unsigned long flags;
2356 init_completion(&bnad->bnad_completions.mcast_comp);
2358 spin_lock_irqsave(&bnad->bna_lock, flags);
2359 ret = bna_rx_mcast_add(rx_info->rx, bnad_bcast_addr,
2360 bnad_cb_rx_mcast_add);
2361 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2363 if (ret == BNA_CB_SUCCESS)
2364 wait_for_completion(&bnad->bnad_completions.mcast_comp);
2368 if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS)
2374 /* Called with mutex_lock(&bnad->conf_mutex) held */
2376 bnad_restore_vlans(struct bnad *bnad, u32 rx_id)
2379 unsigned long flags;
2381 for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) {
2382 spin_lock_irqsave(&bnad->bna_lock, flags);
2383 bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid);
2384 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2388 /* Statistics utilities */
2390 bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats)
2394 for (i = 0; i < bnad->num_rx; i++) {
2395 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
2396 if (bnad->rx_info[i].rx_ctrl[j].ccb) {
2397 stats->rx_packets += bnad->rx_info[i].
2398 rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets;
2399 stats->rx_bytes += bnad->rx_info[i].
2400 rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes;
2401 if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] &&
2402 bnad->rx_info[i].rx_ctrl[j].ccb->
2404 stats->rx_packets +=
2405 bnad->rx_info[i].rx_ctrl[j].
2406 ccb->rcb[1]->rxq->rx_packets;
2408 bnad->rx_info[i].rx_ctrl[j].
2409 ccb->rcb[1]->rxq->rx_bytes;
2414 for (i = 0; i < bnad->num_tx; i++) {
2415 for (j = 0; j < bnad->num_txq_per_tx; j++) {
2416 if (bnad->tx_info[i].tcb[j]) {
2417 stats->tx_packets +=
2418 bnad->tx_info[i].tcb[j]->txq->tx_packets;
2420 bnad->tx_info[i].tcb[j]->txq->tx_bytes;
2427 * Must be called with the bna_lock held.
2430 bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats)
2432 struct bfi_enet_stats_mac *mac_stats;
2436 mac_stats = &bnad->stats.bna_stats->hw_stats.mac_stats;
2438 mac_stats->rx_fcs_error + mac_stats->rx_alignment_error +
2439 mac_stats->rx_frame_length_error + mac_stats->rx_code_error +
2440 mac_stats->rx_undersize;
2441 stats->tx_errors = mac_stats->tx_fcs_error +
2442 mac_stats->tx_undersize;
2443 stats->rx_dropped = mac_stats->rx_drop;
2444 stats->tx_dropped = mac_stats->tx_drop;
2445 stats->multicast = mac_stats->rx_multicast;
2446 stats->collisions = mac_stats->tx_total_collision;
2448 stats->rx_length_errors = mac_stats->rx_frame_length_error;
2450 /* receive ring buffer overflow ?? */
2452 stats->rx_crc_errors = mac_stats->rx_fcs_error;
2453 stats->rx_frame_errors = mac_stats->rx_alignment_error;
2454 /* recv'r fifo overrun */
2455 bmap = bna_rx_rid_mask(&bnad->bna);
2456 for (i = 0; bmap; i++) {
2458 stats->rx_fifo_errors +=
2459 bnad->stats.bna_stats->
2460 hw_stats.rxf_stats[i].frame_drops;
2468 bnad_mbox_irq_sync(struct bnad *bnad)
2471 unsigned long flags;
2473 spin_lock_irqsave(&bnad->bna_lock, flags);
2474 if (bnad->cfg_flags & BNAD_CF_MSIX)
2475 irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector;
2477 irq = bnad->pcidev->irq;
2478 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2480 synchronize_irq(irq);
2483 /* Utility used by bnad_start_xmit, for doing TSO */
2485 bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb)
2489 err = skb_cow_head(skb, 0);
2491 BNAD_UPDATE_CTR(bnad, tso_err);
2496 * For TSO, the TCP checksum field is seeded with pseudo-header sum
2497 * excluding the length field.
2499 if (vlan_get_protocol(skb) == htons(ETH_P_IP)) {
2500 struct iphdr *iph = ip_hdr(skb);
2502 /* Do we really need these? */
2506 tcp_hdr(skb)->check =
2507 ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
2509 BNAD_UPDATE_CTR(bnad, tso4);
2511 struct ipv6hdr *ipv6h = ipv6_hdr(skb);
2513 ipv6h->payload_len = 0;
2514 tcp_hdr(skb)->check =
2515 ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0,
2517 BNAD_UPDATE_CTR(bnad, tso6);
2524 * Initialize Q numbers depending on Rx Paths
2525 * Called with bnad->bna_lock held, because of cfg_flags
2529 bnad_q_num_init(struct bnad *bnad)
2533 rxps = min((uint)num_online_cpus(),
2534 (uint)(BNAD_MAX_RX * BNAD_MAX_RXP_PER_RX));
2536 if (!(bnad->cfg_flags & BNAD_CF_MSIX))
2537 rxps = 1; /* INTx */
2541 bnad->num_rxp_per_rx = rxps;
2542 bnad->num_txq_per_tx = BNAD_TXQ_NUM;
2546 * Adjusts the Q numbers, given a number of msix vectors
2547 * Give preference to RSS as opposed to Tx priority Queues,
2548 * in such a case, just use 1 Tx Q
2549 * Called with bnad->bna_lock held b'cos of cfg_flags access
2552 bnad_q_num_adjust(struct bnad *bnad, int msix_vectors, int temp)
2554 bnad->num_txq_per_tx = 1;
2555 if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) +
2556 bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) &&
2557 (bnad->cfg_flags & BNAD_CF_MSIX)) {
2558 bnad->num_rxp_per_rx = msix_vectors -
2559 (bnad->num_tx * bnad->num_txq_per_tx) -
2560 BNAD_MAILBOX_MSIX_VECTORS;
2562 bnad->num_rxp_per_rx = 1;
2565 /* Enable / disable ioceth */
2567 bnad_ioceth_disable(struct bnad *bnad)
2569 unsigned long flags;
2572 spin_lock_irqsave(&bnad->bna_lock, flags);
2573 init_completion(&bnad->bnad_completions.ioc_comp);
2574 bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP);
2575 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2577 wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp,
2578 msecs_to_jiffies(BNAD_IOCETH_TIMEOUT));
2580 err = bnad->bnad_completions.ioc_comp_status;
2585 bnad_ioceth_enable(struct bnad *bnad)
2588 unsigned long flags;
2590 spin_lock_irqsave(&bnad->bna_lock, flags);
2591 init_completion(&bnad->bnad_completions.ioc_comp);
2592 bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING;
2593 bna_ioceth_enable(&bnad->bna.ioceth);
2594 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2596 wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp,
2597 msecs_to_jiffies(BNAD_IOCETH_TIMEOUT));
2599 err = bnad->bnad_completions.ioc_comp_status;
2604 /* Free BNA resources */
2606 bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info,
2611 for (i = 0; i < res_val_max; i++)
2612 bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
2615 /* Allocates memory and interrupt resources for BNA */
2617 bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
2622 for (i = 0; i < res_val_max; i++) {
2623 err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info);
2630 bnad_res_free(bnad, res_info, res_val_max);
2634 /* Interrupt enable / disable */
2636 bnad_enable_msix(struct bnad *bnad)
2639 unsigned long flags;
2641 spin_lock_irqsave(&bnad->bna_lock, flags);
2642 if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
2643 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2646 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2648 if (bnad->msix_table)
2652 kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL);
2654 if (!bnad->msix_table)
2657 for (i = 0; i < bnad->msix_num; i++)
2658 bnad->msix_table[i].entry = i;
2660 ret = pci_enable_msix_range(bnad->pcidev, bnad->msix_table,
2664 } else if (ret < bnad->msix_num) {
2665 dev_warn(&bnad->pcidev->dev,
2666 "%d MSI-X vectors allocated < %d requested\n",
2667 ret, bnad->msix_num);
2669 spin_lock_irqsave(&bnad->bna_lock, flags);
2670 /* ret = #of vectors that we got */
2671 bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2,
2672 (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2);
2673 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2675 bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP +
2676 BNAD_MAILBOX_MSIX_VECTORS;
2678 if (bnad->msix_num > ret) {
2679 pci_disable_msix(bnad->pcidev);
2684 pci_intx(bnad->pcidev, 0);
2689 dev_warn(&bnad->pcidev->dev,
2690 "MSI-X enable failed - operating in INTx mode\n");
2692 kfree(bnad->msix_table);
2693 bnad->msix_table = NULL;
2695 spin_lock_irqsave(&bnad->bna_lock, flags);
2696 bnad->cfg_flags &= ~BNAD_CF_MSIX;
2697 bnad_q_num_init(bnad);
2698 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2702 bnad_disable_msix(struct bnad *bnad)
2705 unsigned long flags;
2707 spin_lock_irqsave(&bnad->bna_lock, flags);
2708 cfg_flags = bnad->cfg_flags;
2709 if (bnad->cfg_flags & BNAD_CF_MSIX)
2710 bnad->cfg_flags &= ~BNAD_CF_MSIX;
2711 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2713 if (cfg_flags & BNAD_CF_MSIX) {
2714 pci_disable_msix(bnad->pcidev);
2715 kfree(bnad->msix_table);
2716 bnad->msix_table = NULL;
2720 /* Netdev entry points */
2722 bnad_open(struct net_device *netdev)
2725 struct bnad *bnad = netdev_priv(netdev);
2726 struct bna_pause_config pause_config;
2727 unsigned long flags;
2729 mutex_lock(&bnad->conf_mutex);
2732 err = bnad_setup_tx(bnad, 0);
2737 err = bnad_setup_rx(bnad, 0);
2742 pause_config.tx_pause = 0;
2743 pause_config.rx_pause = 0;
2745 spin_lock_irqsave(&bnad->bna_lock, flags);
2746 bna_enet_mtu_set(&bnad->bna.enet,
2747 BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL);
2748 bna_enet_pause_config(&bnad->bna.enet, &pause_config);
2749 bna_enet_enable(&bnad->bna.enet);
2750 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2752 /* Enable broadcast */
2753 bnad_enable_default_bcast(bnad);
2755 /* Restore VLANs, if any */
2756 bnad_restore_vlans(bnad, 0);
2758 /* Set the UCAST address */
2759 spin_lock_irqsave(&bnad->bna_lock, flags);
2760 bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
2761 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2763 /* Start the stats timer */
2764 bnad_stats_timer_start(bnad);
2766 mutex_unlock(&bnad->conf_mutex);
2771 bnad_destroy_tx(bnad, 0);
2774 mutex_unlock(&bnad->conf_mutex);
2779 bnad_stop(struct net_device *netdev)
2781 struct bnad *bnad = netdev_priv(netdev);
2782 unsigned long flags;
2784 mutex_lock(&bnad->conf_mutex);
2786 /* Stop the stats timer */
2787 bnad_stats_timer_stop(bnad);
2789 init_completion(&bnad->bnad_completions.enet_comp);
2791 spin_lock_irqsave(&bnad->bna_lock, flags);
2792 bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP,
2793 bnad_cb_enet_disabled);
2794 spin_unlock_irqrestore(&bnad->bna_lock, flags);
2796 wait_for_completion(&bnad->bnad_completions.enet_comp);
2798 bnad_destroy_tx(bnad, 0);
2799 bnad_destroy_rx(bnad, 0);
2801 /* Synchronize mailbox IRQ */
2802 bnad_mbox_irq_sync(bnad);
2804 mutex_unlock(&bnad->conf_mutex);
2810 /* Returns 0 for success */
2812 bnad_txq_wi_prepare(struct bnad *bnad, struct bna_tcb *tcb,
2813 struct sk_buff *skb, struct bna_txq_entry *txqent)
2819 if (skb_vlan_tag_present(skb)) {
2820 vlan_tag = (u16)skb_vlan_tag_get(skb);
2821 flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
2823 if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) {
2824 vlan_tag = ((tcb->priority & 0x7) << VLAN_PRIO_SHIFT)
2825 | (vlan_tag & 0x1fff);
2826 flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
2828 txqent->hdr.wi.vlan_tag = htons(vlan_tag);
2830 if (skb_is_gso(skb)) {
2831 gso_size = skb_shinfo(skb)->gso_size;
2832 if (unlikely(gso_size > bnad->netdev->mtu)) {
2833 BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long);
2836 if (unlikely((gso_size + skb_transport_offset(skb) +
2837 tcp_hdrlen(skb)) >= skb->len)) {
2838 txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND);
2839 txqent->hdr.wi.lso_mss = 0;
2840 BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short);
2842 txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND_LSO);
2843 txqent->hdr.wi.lso_mss = htons(gso_size);
2846 if (bnad_tso_prepare(bnad, skb)) {
2847 BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare);
2851 flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM);
2852 txqent->hdr.wi.l4_hdr_size_n_offset =
2853 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET(
2854 tcp_hdrlen(skb) >> 2, skb_transport_offset(skb)));
2856 txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND);
2857 txqent->hdr.wi.lso_mss = 0;
2859 if (unlikely(skb->len > (bnad->netdev->mtu + VLAN_ETH_HLEN))) {
2860 BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long);
2864 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2865 __be16 net_proto = vlan_get_protocol(skb);
2868 if (net_proto == htons(ETH_P_IP))
2869 proto = ip_hdr(skb)->protocol;
2870 #ifdef NETIF_F_IPV6_CSUM
2871 else if (net_proto == htons(ETH_P_IPV6)) {
2872 /* nexthdr may not be TCP immediately. */
2873 proto = ipv6_hdr(skb)->nexthdr;
2876 if (proto == IPPROTO_TCP) {
2877 flags |= BNA_TXQ_WI_CF_TCP_CKSUM;
2878 txqent->hdr.wi.l4_hdr_size_n_offset =
2879 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2880 (0, skb_transport_offset(skb)));
2882 BNAD_UPDATE_CTR(bnad, tcpcsum_offload);
2884 if (unlikely(skb_headlen(skb) <
2885 skb_transport_offset(skb) +
2887 BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr);
2890 } else if (proto == IPPROTO_UDP) {
2891 flags |= BNA_TXQ_WI_CF_UDP_CKSUM;
2892 txqent->hdr.wi.l4_hdr_size_n_offset =
2893 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2894 (0, skb_transport_offset(skb)));
2896 BNAD_UPDATE_CTR(bnad, udpcsum_offload);
2897 if (unlikely(skb_headlen(skb) <
2898 skb_transport_offset(skb) +
2899 sizeof(struct udphdr))) {
2900 BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr);
2905 BNAD_UPDATE_CTR(bnad, tx_skb_csum_err);
2909 txqent->hdr.wi.l4_hdr_size_n_offset = 0;
2912 txqent->hdr.wi.flags = htons(flags);
2913 txqent->hdr.wi.frame_length = htonl(skb->len);
2919 * bnad_start_xmit : Netdev entry point for Transmit
2920 * Called under lock held by net_device
2923 bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev)
2925 struct bnad *bnad = netdev_priv(netdev);
2927 struct bna_tcb *tcb = NULL;
2928 struct bnad_tx_unmap *unmap_q, *unmap, *head_unmap;
2929 u32 prod, q_depth, vect_id;
2930 u32 wis, vectors, len;
2932 dma_addr_t dma_addr;
2933 struct bna_txq_entry *txqent;
2935 len = skb_headlen(skb);
2937 /* Sanity checks for the skb */
2939 if (unlikely(skb->len <= ETH_HLEN)) {
2940 dev_kfree_skb_any(skb);
2941 BNAD_UPDATE_CTR(bnad, tx_skb_too_short);
2942 return NETDEV_TX_OK;
2944 if (unlikely(len > BFI_TX_MAX_DATA_PER_VECTOR)) {
2945 dev_kfree_skb_any(skb);
2946 BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero);
2947 return NETDEV_TX_OK;
2949 if (unlikely(len == 0)) {
2950 dev_kfree_skb_any(skb);
2951 BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero);
2952 return NETDEV_TX_OK;
2955 tcb = bnad->tx_info[0].tcb[txq_id];
2958 * Takes care of the Tx that is scheduled between clearing the flag
2959 * and the netif_tx_stop_all_queues() call.
2961 if (unlikely(!tcb || !test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) {
2962 dev_kfree_skb_any(skb);
2963 BNAD_UPDATE_CTR(bnad, tx_skb_stopping);
2964 return NETDEV_TX_OK;
2967 q_depth = tcb->q_depth;
2968 prod = tcb->producer_index;
2969 unmap_q = tcb->unmap_q;
2971 vectors = 1 + skb_shinfo(skb)->nr_frags;
2972 wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */
2974 if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) {
2975 dev_kfree_skb_any(skb);
2976 BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors);
2977 return NETDEV_TX_OK;
2980 /* Check for available TxQ resources */
2981 if (unlikely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) {
2982 if ((*tcb->hw_consumer_index != tcb->consumer_index) &&
2983 !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
2985 sent = bnad_txcmpl_process(bnad, tcb);
2986 if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
2987 bna_ib_ack(tcb->i_dbell, sent);
2988 smp_mb__before_atomic();
2989 clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
2991 netif_stop_queue(netdev);
2992 BNAD_UPDATE_CTR(bnad, netif_queue_stop);
2997 * Check again to deal with race condition between
2998 * netif_stop_queue here, and netif_wake_queue in
2999 * interrupt handler which is not inside netif tx lock.
3001 if (likely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) {
3002 BNAD_UPDATE_CTR(bnad, netif_queue_stop);
3003 return NETDEV_TX_BUSY;
3005 netif_wake_queue(netdev);
3006 BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
3010 txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod];
3011 head_unmap = &unmap_q[prod];
3013 /* Program the opcode, flags, frame_len, num_vectors in WI */
3014 if (bnad_txq_wi_prepare(bnad, tcb, skb, txqent)) {
3015 dev_kfree_skb_any(skb);
3016 return NETDEV_TX_OK;
3018 txqent->hdr.wi.reserved = 0;
3019 txqent->hdr.wi.num_vectors = vectors;
3021 head_unmap->skb = skb;
3022 head_unmap->nvecs = 0;
3024 /* Program the vectors */
3026 dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
3027 len, DMA_TO_DEVICE);
3028 BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr);
3029 txqent->vector[0].length = htons(len);
3030 dma_unmap_addr_set(&unmap->vectors[0], dma_addr, dma_addr);
3031 head_unmap->nvecs++;
3033 for (i = 0, vect_id = 0; i < vectors - 1; i++) {
3034 const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
3035 u32 size = skb_frag_size(frag);
3037 if (unlikely(size == 0)) {
3038 /* Undo the changes starting at tcb->producer_index */
3039 bnad_tx_buff_unmap(bnad, unmap_q, q_depth,
3040 tcb->producer_index);
3041 dev_kfree_skb_any(skb);
3042 BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero);
3043 return NETDEV_TX_OK;
3049 if (vect_id == BFI_TX_MAX_VECTORS_PER_WI) {
3051 BNA_QE_INDX_INC(prod, q_depth);
3052 txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod];
3053 txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION);
3054 unmap = &unmap_q[prod];
3057 dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag,
3058 0, size, DMA_TO_DEVICE);
3059 dma_unmap_len_set(&unmap->vectors[vect_id], dma_len, size);
3060 BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
3061 txqent->vector[vect_id].length = htons(size);
3062 dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr,
3064 head_unmap->nvecs++;
3067 if (unlikely(len != skb->len)) {
3068 /* Undo the changes starting at tcb->producer_index */
3069 bnad_tx_buff_unmap(bnad, unmap_q, q_depth, tcb->producer_index);
3070 dev_kfree_skb_any(skb);
3071 BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch);
3072 return NETDEV_TX_OK;
3075 BNA_QE_INDX_INC(prod, q_depth);
3076 tcb->producer_index = prod;
3080 if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
3081 return NETDEV_TX_OK;
3083 skb_tx_timestamp(skb);
3085 bna_txq_prod_indx_doorbell(tcb);
3088 return NETDEV_TX_OK;
3092 * Used spin_lock to synchronize reading of stats structures, which
3093 * is written by BNA under the same lock.
3095 static struct rtnl_link_stats64 *
3096 bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
3098 struct bnad *bnad = netdev_priv(netdev);
3099 unsigned long flags;
3101 spin_lock_irqsave(&bnad->bna_lock, flags);
3103 bnad_netdev_qstats_fill(bnad, stats);
3104 bnad_netdev_hwstats_fill(bnad, stats);
3106 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3112 bnad_set_rx_ucast_fltr(struct bnad *bnad)
3114 struct net_device *netdev = bnad->netdev;
3115 int uc_count = netdev_uc_count(netdev);
3116 enum bna_cb_status ret;
3118 struct netdev_hw_addr *ha;
3121 if (netdev_uc_empty(bnad->netdev)) {
3122 bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL);
3126 if (uc_count > bna_attr(&bnad->bna)->num_ucmac)
3129 mac_list = kzalloc(uc_count * ETH_ALEN, GFP_ATOMIC);
3130 if (mac_list == NULL)
3134 netdev_for_each_uc_addr(ha, netdev) {
3135 ether_addr_copy(&mac_list[entry * ETH_ALEN], &ha->addr[0]);
3139 ret = bna_rx_ucast_listset(bnad->rx_info[0].rx, entry, mac_list);
3142 if (ret != BNA_CB_SUCCESS)
3147 /* ucast packets not in UCAM are routed to default function */
3149 bnad->cfg_flags |= BNAD_CF_DEFAULT;
3150 bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL);
3154 bnad_set_rx_mcast_fltr(struct bnad *bnad)
3156 struct net_device *netdev = bnad->netdev;
3157 int mc_count = netdev_mc_count(netdev);
3158 enum bna_cb_status ret;
3161 if (netdev->flags & IFF_ALLMULTI)
3164 if (netdev_mc_empty(netdev))
3167 if (mc_count > bna_attr(&bnad->bna)->num_mcmac)
3170 mac_list = kzalloc((mc_count + 1) * ETH_ALEN, GFP_ATOMIC);
3172 if (mac_list == NULL)
3175 ether_addr_copy(&mac_list[0], &bnad_bcast_addr[0]);
3177 /* copy rest of the MCAST addresses */
3178 bnad_netdev_mc_list_get(netdev, mac_list);
3179 ret = bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1, mac_list);
3182 if (ret != BNA_CB_SUCCESS)
3188 bnad->cfg_flags |= BNAD_CF_ALLMULTI;
3189 bna_rx_mcast_delall(bnad->rx_info[0].rx);
3193 bnad_set_rx_mode(struct net_device *netdev)
3195 struct bnad *bnad = netdev_priv(netdev);
3196 enum bna_rxmode new_mode, mode_mask;
3197 unsigned long flags;
3199 spin_lock_irqsave(&bnad->bna_lock, flags);
3201 if (bnad->rx_info[0].rx == NULL) {
3202 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3206 /* clear bnad flags to update it with new settings */
3207 bnad->cfg_flags &= ~(BNAD_CF_PROMISC | BNAD_CF_DEFAULT |
3211 if (netdev->flags & IFF_PROMISC) {
3212 new_mode |= BNAD_RXMODE_PROMISC_DEFAULT;
3213 bnad->cfg_flags |= BNAD_CF_PROMISC;
3215 bnad_set_rx_mcast_fltr(bnad);
3217 if (bnad->cfg_flags & BNAD_CF_ALLMULTI)
3218 new_mode |= BNA_RXMODE_ALLMULTI;
3220 bnad_set_rx_ucast_fltr(bnad);
3222 if (bnad->cfg_flags & BNAD_CF_DEFAULT)
3223 new_mode |= BNA_RXMODE_DEFAULT;
3226 mode_mask = BNA_RXMODE_PROMISC | BNA_RXMODE_DEFAULT |
3227 BNA_RXMODE_ALLMULTI;
3228 bna_rx_mode_set(bnad->rx_info[0].rx, new_mode, mode_mask);
3230 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3234 * bna_lock is used to sync writes to netdev->addr
3235 * conf_lock cannot be used since this call may be made
3236 * in a non-blocking context.
3239 bnad_set_mac_address(struct net_device *netdev, void *addr)
3242 struct bnad *bnad = netdev_priv(netdev);
3243 struct sockaddr *sa = (struct sockaddr *)addr;
3244 unsigned long flags;
3246 spin_lock_irqsave(&bnad->bna_lock, flags);
3248 err = bnad_mac_addr_set_locked(bnad, sa->sa_data);
3250 ether_addr_copy(netdev->dev_addr, sa->sa_data);
3252 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3258 bnad_mtu_set(struct bnad *bnad, int frame_size)
3260 unsigned long flags;
3262 init_completion(&bnad->bnad_completions.mtu_comp);
3264 spin_lock_irqsave(&bnad->bna_lock, flags);
3265 bna_enet_mtu_set(&bnad->bna.enet, frame_size, bnad_cb_enet_mtu_set);
3266 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3268 wait_for_completion(&bnad->bnad_completions.mtu_comp);
3270 return bnad->bnad_completions.mtu_comp_status;
3274 bnad_change_mtu(struct net_device *netdev, int new_mtu)
3277 struct bnad *bnad = netdev_priv(netdev);
3278 u32 rx_count = 0, frame, new_frame;
3280 if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU)
3283 mutex_lock(&bnad->conf_mutex);
3286 netdev->mtu = new_mtu;
3288 frame = BNAD_FRAME_SIZE(mtu);
3289 new_frame = BNAD_FRAME_SIZE(new_mtu);
3291 /* check if multi-buffer needs to be enabled */
3292 if (BNAD_PCI_DEV_IS_CAT2(bnad) &&
3293 netif_running(bnad->netdev)) {
3294 /* only when transition is over 4K */
3295 if ((frame <= 4096 && new_frame > 4096) ||
3296 (frame > 4096 && new_frame <= 4096))
3297 rx_count = bnad_reinit_rx(bnad);
3300 /* rx_count > 0 - new rx created
3301 * - Linux set err = 0 and return
3303 err = bnad_mtu_set(bnad, new_frame);
3307 mutex_unlock(&bnad->conf_mutex);
3312 bnad_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
3314 struct bnad *bnad = netdev_priv(netdev);
3315 unsigned long flags;
3317 if (!bnad->rx_info[0].rx)
3320 mutex_lock(&bnad->conf_mutex);
3322 spin_lock_irqsave(&bnad->bna_lock, flags);
3323 bna_rx_vlan_add(bnad->rx_info[0].rx, vid);
3324 set_bit(vid, bnad->active_vlans);
3325 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3327 mutex_unlock(&bnad->conf_mutex);
3333 bnad_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
3335 struct bnad *bnad = netdev_priv(netdev);
3336 unsigned long flags;
3338 if (!bnad->rx_info[0].rx)
3341 mutex_lock(&bnad->conf_mutex);
3343 spin_lock_irqsave(&bnad->bna_lock, flags);
3344 clear_bit(vid, bnad->active_vlans);
3345 bna_rx_vlan_del(bnad->rx_info[0].rx, vid);
3346 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3348 mutex_unlock(&bnad->conf_mutex);
3353 static int bnad_set_features(struct net_device *dev, netdev_features_t features)
3355 struct bnad *bnad = netdev_priv(dev);
3356 netdev_features_t changed = features ^ dev->features;
3358 if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && netif_running(dev)) {
3359 unsigned long flags;
3361 spin_lock_irqsave(&bnad->bna_lock, flags);
3363 if (features & NETIF_F_HW_VLAN_CTAG_RX)
3364 bna_rx_vlan_strip_enable(bnad->rx_info[0].rx);
3366 bna_rx_vlan_strip_disable(bnad->rx_info[0].rx);
3368 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3374 #ifdef CONFIG_NET_POLL_CONTROLLER
3376 bnad_netpoll(struct net_device *netdev)
3378 struct bnad *bnad = netdev_priv(netdev);
3379 struct bnad_rx_info *rx_info;
3380 struct bnad_rx_ctrl *rx_ctrl;
3384 if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
3385 bna_intx_disable(&bnad->bna, curr_mask);
3386 bnad_isr(bnad->pcidev->irq, netdev);
3387 bna_intx_enable(&bnad->bna, curr_mask);
3390 * Tx processing may happen in sending context, so no need
3391 * to explicitly process completions here
3395 for (i = 0; i < bnad->num_rx; i++) {
3396 rx_info = &bnad->rx_info[i];
3399 for (j = 0; j < bnad->num_rxp_per_rx; j++) {
3400 rx_ctrl = &rx_info->rx_ctrl[j];
3402 bnad_netif_rx_schedule_poll(bnad,
3410 static const struct net_device_ops bnad_netdev_ops = {
3411 .ndo_open = bnad_open,
3412 .ndo_stop = bnad_stop,
3413 .ndo_start_xmit = bnad_start_xmit,
3414 .ndo_get_stats64 = bnad_get_stats64,
3415 .ndo_set_rx_mode = bnad_set_rx_mode,
3416 .ndo_validate_addr = eth_validate_addr,
3417 .ndo_set_mac_address = bnad_set_mac_address,
3418 .ndo_change_mtu = bnad_change_mtu,
3419 .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid,
3420 .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid,
3421 .ndo_set_features = bnad_set_features,
3422 #ifdef CONFIG_NET_POLL_CONTROLLER
3423 .ndo_poll_controller = bnad_netpoll
3428 bnad_netdev_init(struct bnad *bnad, bool using_dac)
3430 struct net_device *netdev = bnad->netdev;
3432 netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
3433 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
3434 NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_TX |
3435 NETIF_F_HW_VLAN_CTAG_RX;
3437 netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA |
3438 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
3439 NETIF_F_TSO | NETIF_F_TSO6;
3441 netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
3444 netdev->features |= NETIF_F_HIGHDMA;
3446 netdev->mem_start = bnad->mmio_start;
3447 netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1;
3449 netdev->netdev_ops = &bnad_netdev_ops;
3450 bnad_set_ethtool_ops(netdev);
3454 * 1. Initialize the bnad structure
3455 * 2. Setup netdev pointer in pci_dev
3456 * 3. Initialize no. of TxQ & CQs & MSIX vectors
3457 * 4. Initialize work queue.
3460 bnad_init(struct bnad *bnad,
3461 struct pci_dev *pdev, struct net_device *netdev)
3463 unsigned long flags;
3465 SET_NETDEV_DEV(netdev, &pdev->dev);
3466 pci_set_drvdata(pdev, netdev);
3468 bnad->netdev = netdev;
3469 bnad->pcidev = pdev;
3470 bnad->mmio_start = pci_resource_start(pdev, 0);
3471 bnad->mmio_len = pci_resource_len(pdev, 0);
3472 bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len);
3474 dev_err(&pdev->dev, "ioremap for bar0 failed\n");
3477 dev_info(&pdev->dev, "bar0 mapped to %p, len %llu\n", bnad->bar0,
3478 (unsigned long long) bnad->mmio_len);
3480 spin_lock_irqsave(&bnad->bna_lock, flags);
3481 if (!bnad_msix_disable)
3482 bnad->cfg_flags = BNAD_CF_MSIX;
3484 bnad->cfg_flags |= BNAD_CF_DIM_ENABLED;
3486 bnad_q_num_init(bnad);
3487 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3489 bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) +
3490 (bnad->num_rx * bnad->num_rxp_per_rx) +
3491 BNAD_MAILBOX_MSIX_VECTORS;
3493 bnad->txq_depth = BNAD_TXQ_DEPTH;
3494 bnad->rxq_depth = BNAD_RXQ_DEPTH;
3496 bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO;
3497 bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO;
3499 sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id);
3500 bnad->work_q = create_singlethread_workqueue(bnad->wq_name);
3501 if (!bnad->work_q) {
3502 iounmap(bnad->bar0);
3510 * Must be called after bnad_pci_uninit()
3511 * so that iounmap() and pci_set_drvdata(NULL)
3512 * happens only after PCI uninitialization.
3515 bnad_uninit(struct bnad *bnad)
3518 flush_workqueue(bnad->work_q);
3519 destroy_workqueue(bnad->work_q);
3520 bnad->work_q = NULL;
3524 iounmap(bnad->bar0);
3529 a) Per ioceth mutes used for serializing configuration
3530 changes from OS interface
3531 b) spin lock used to protect bna state machine
3534 bnad_lock_init(struct bnad *bnad)
3536 spin_lock_init(&bnad->bna_lock);
3537 mutex_init(&bnad->conf_mutex);
3538 mutex_init(&bnad_list_mutex);
3542 bnad_lock_uninit(struct bnad *bnad)
3544 mutex_destroy(&bnad->conf_mutex);
3545 mutex_destroy(&bnad_list_mutex);
3548 /* PCI Initialization */
3550 bnad_pci_init(struct bnad *bnad,
3551 struct pci_dev *pdev, bool *using_dac)
3555 err = pci_enable_device(pdev);
3558 err = pci_request_regions(pdev, BNAD_NAME);
3560 goto disable_device;
3561 if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
3564 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
3566 goto release_regions;
3569 pci_set_master(pdev);
3573 pci_release_regions(pdev);
3575 pci_disable_device(pdev);
3581 bnad_pci_uninit(struct pci_dev *pdev)
3583 pci_release_regions(pdev);
3584 pci_disable_device(pdev);
3588 bnad_pci_probe(struct pci_dev *pdev,
3589 const struct pci_device_id *pcidev_id)
3595 struct net_device *netdev;
3596 struct bfa_pcidev pcidev_info;
3597 unsigned long flags;
3599 mutex_lock(&bnad_fwimg_mutex);
3600 if (!cna_get_firmware_buf(pdev)) {
3601 mutex_unlock(&bnad_fwimg_mutex);
3602 dev_err(&pdev->dev, "failed to load firmware image!\n");
3605 mutex_unlock(&bnad_fwimg_mutex);
3608 * Allocates sizeof(struct net_device + struct bnad)
3609 * bnad = netdev->priv
3611 netdev = alloc_etherdev(sizeof(struct bnad));
3616 bnad = netdev_priv(netdev);
3617 bnad_lock_init(bnad);
3618 bnad_add_to_list(bnad);
3620 mutex_lock(&bnad->conf_mutex);
3622 * PCI initialization
3623 * Output : using_dac = 1 for 64 bit DMA
3624 * = 0 for 32 bit DMA
3627 err = bnad_pci_init(bnad, pdev, &using_dac);
3632 * Initialize bnad structure
3633 * Setup relation between pci_dev & netdev
3635 err = bnad_init(bnad, pdev, netdev);
3639 /* Initialize netdev structure, set up ethtool ops */
3640 bnad_netdev_init(bnad, using_dac);
3642 /* Set link to down state */
3643 netif_carrier_off(netdev);
3645 /* Setup the debugfs node for this bfad */
3646 if (bna_debugfs_enable)
3647 bnad_debugfs_init(bnad);
3649 /* Get resource requirement form bna */
3650 spin_lock_irqsave(&bnad->bna_lock, flags);
3651 bna_res_req(&bnad->res_info[0]);
3652 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3654 /* Allocate resources from bna */
3655 err = bnad_res_alloc(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
3661 /* Setup pcidev_info for bna_init() */
3662 pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn);
3663 pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn);
3664 pcidev_info.device_id = bnad->pcidev->device;
3665 pcidev_info.pci_bar_kva = bnad->bar0;
3667 spin_lock_irqsave(&bnad->bna_lock, flags);
3668 bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]);
3669 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3671 bnad->stats.bna_stats = &bna->stats;
3673 bnad_enable_msix(bnad);
3674 err = bnad_mbox_irq_alloc(bnad);
3679 setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout,
3680 (unsigned long)bnad);
3681 setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check,
3682 (unsigned long)bnad);
3683 setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout,
3684 (unsigned long)bnad);
3685 setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout,
3686 (unsigned long)bnad);
3690 * If the call back comes with error, we bail out.
3691 * This is a catastrophic error.
3693 err = bnad_ioceth_enable(bnad);
3695 dev_err(&pdev->dev, "initialization failed err=%d\n", err);
3699 spin_lock_irqsave(&bnad->bna_lock, flags);
3700 if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) ||
3701 bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) {
3702 bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1,
3703 bna_attr(bna)->num_rxp - 1);
3704 if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) ||
3705 bna_num_rxp_set(bna, BNAD_NUM_RXP + 1))
3708 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3710 goto disable_ioceth;
3712 spin_lock_irqsave(&bnad->bna_lock, flags);
3713 bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]);
3714 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3716 err = bnad_res_alloc(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
3719 goto disable_ioceth;
3722 spin_lock_irqsave(&bnad->bna_lock, flags);
3723 bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]);
3724 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3726 /* Get the burnt-in mac */
3727 spin_lock_irqsave(&bnad->bna_lock, flags);
3728 bna_enet_perm_mac_get(&bna->enet, bnad->perm_addr);
3729 bnad_set_netdev_perm_addr(bnad);
3730 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3732 mutex_unlock(&bnad->conf_mutex);
3734 /* Finally, reguister with net_device layer */
3735 err = register_netdev(netdev);
3737 dev_err(&pdev->dev, "registering net device failed\n");
3740 set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags);
3745 mutex_unlock(&bnad->conf_mutex);
3749 mutex_lock(&bnad->conf_mutex);
3750 bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
3752 bnad_ioceth_disable(bnad);
3753 del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer);
3754 del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer);
3755 del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer);
3756 spin_lock_irqsave(&bnad->bna_lock, flags);
3758 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3759 bnad_mbox_irq_free(bnad);
3760 bnad_disable_msix(bnad);
3762 bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
3764 /* Remove the debugfs node for this bnad */
3765 kfree(bnad->regdata);
3766 bnad_debugfs_uninit(bnad);
3769 bnad_pci_uninit(pdev);
3771 mutex_unlock(&bnad->conf_mutex);
3772 bnad_remove_from_list(bnad);
3773 bnad_lock_uninit(bnad);
3774 free_netdev(netdev);
3779 bnad_pci_remove(struct pci_dev *pdev)
3781 struct net_device *netdev = pci_get_drvdata(pdev);
3784 unsigned long flags;
3789 bnad = netdev_priv(netdev);
3792 if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags))
3793 unregister_netdev(netdev);
3795 mutex_lock(&bnad->conf_mutex);
3796 bnad_ioceth_disable(bnad);
3797 del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer);
3798 del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer);
3799 del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer);
3800 spin_lock_irqsave(&bnad->bna_lock, flags);
3802 spin_unlock_irqrestore(&bnad->bna_lock, flags);
3804 bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
3805 bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
3806 bnad_mbox_irq_free(bnad);
3807 bnad_disable_msix(bnad);
3808 bnad_pci_uninit(pdev);
3809 mutex_unlock(&bnad->conf_mutex);
3810 bnad_remove_from_list(bnad);
3811 bnad_lock_uninit(bnad);
3812 /* Remove the debugfs node for this bnad */
3813 kfree(bnad->regdata);
3814 bnad_debugfs_uninit(bnad);
3816 free_netdev(netdev);
3819 static const struct pci_device_id bnad_pci_id_table[] = {
3821 PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
3822 PCI_DEVICE_ID_BROCADE_CT),
3823 .class = PCI_CLASS_NETWORK_ETHERNET << 8,
3824 .class_mask = 0xffff00
3827 PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
3828 BFA_PCI_DEVICE_ID_CT2),
3829 .class = PCI_CLASS_NETWORK_ETHERNET << 8,
3830 .class_mask = 0xffff00
3835 MODULE_DEVICE_TABLE(pci, bnad_pci_id_table);
3837 static struct pci_driver bnad_pci_driver = {
3839 .id_table = bnad_pci_id_table,
3840 .probe = bnad_pci_probe,
3841 .remove = bnad_pci_remove,
3845 bnad_module_init(void)
3849 pr_info("bna: QLogic BR-series 10G Ethernet driver - version: %s\n",
3852 bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover);
3854 err = pci_register_driver(&bnad_pci_driver);
3856 pr_err("bna: PCI driver registration failed err=%d\n", err);
3864 bnad_module_exit(void)
3866 pci_unregister_driver(&bnad_pci_driver);
3867 release_firmware(bfi_fw);
3870 module_init(bnad_module_init);
3871 module_exit(bnad_module_exit);
3873 MODULE_AUTHOR("Brocade");
3874 MODULE_LICENSE("GPL");
3875 MODULE_DESCRIPTION("QLogic BR-series 10G PCIe Ethernet driver");
3876 MODULE_VERSION(BNAD_VERSION);
3877 MODULE_FIRMWARE(CNA_FW_FILE_CT);
3878 MODULE_FIRMWARE(CNA_FW_FILE_CT2);