2 * Linux network driver for Brocade 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) 2005-2010 Brocade Communications Systems, Inc.
18 #include <linux/netdevice.h>
19 #include <linux/skbuff.h>
20 #include <linux/etherdevice.h>
22 #include <linux/ethtool.h>
23 #include <linux/if_vlan.h>
24 #include <linux/if_ether.h>
31 static DEFINE_MUTEX(bnad_fwimg_mutex
);
36 static uint bnad_msix_disable
;
37 module_param(bnad_msix_disable
, uint
, 0444);
38 MODULE_PARM_DESC(bnad_msix_disable
, "Disable MSIX mode");
40 static uint bnad_ioc_auto_recover
= 1;
41 module_param(bnad_ioc_auto_recover
, uint
, 0444);
42 MODULE_PARM_DESC(bnad_ioc_auto_recover
, "Enable / Disable auto recovery");
47 u32 bnad_rxqs_per_cq
= 2;
49 static const u8 bnad_bcast_addr
[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
54 #define BNAD_TX_UNMAPQ_DEPTH (bnad->txq_depth * 2)
56 #define BNAD_RX_UNMAPQ_DEPTH (bnad->rxq_depth)
58 #define BNAD_GET_MBOX_IRQ(_bnad) \
59 (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \
60 ((_bnad)->msix_table[(_bnad)->msix_num - 1].vector) : \
61 ((_bnad)->pcidev->irq))
63 #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _depth) \
65 (_res_info)->res_type = BNA_RES_T_MEM; \
66 (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \
67 (_res_info)->res_u.mem_info.num = (_num); \
68 (_res_info)->res_u.mem_info.len = \
69 sizeof(struct bnad_unmap_q) + \
70 (sizeof(struct bnad_skb_unmap) * ((_depth) - 1)); \
74 * Reinitialize completions in CQ, once Rx is taken down
77 bnad_cq_cmpl_init(struct bnad
*bnad
, struct bna_ccb
*ccb
)
79 struct bna_cq_entry
*cmpl
, *next_cmpl
;
80 unsigned int wi_range
, wis
= 0, ccb_prod
= 0;
83 BNA_CQ_QPGE_PTR_GET(ccb_prod
, ccb
->sw_qpt
, cmpl
,
86 for (i
= 0; i
< ccb
->q_depth
; i
++) {
88 if (likely(--wi_range
))
91 BNA_QE_INDX_ADD(ccb_prod
, wis
, ccb
->q_depth
);
93 BNA_CQ_QPGE_PTR_GET(ccb_prod
, ccb
->sw_qpt
,
102 * Frees all pending Tx Bufs
103 * At this point no activity is expected on the Q,
104 * so DMA unmap & freeing is fine.
107 bnad_free_all_txbufs(struct bnad
*bnad
,
111 struct bnad_unmap_q
*unmap_q
= tcb
->unmap_q
;
112 struct bnad_skb_unmap
*unmap_array
;
113 struct sk_buff
*skb
= NULL
;
116 unmap_array
= unmap_q
->unmap_array
;
119 while (unmap_cons
< unmap_q
->q_depth
) {
120 skb
= unmap_array
[unmap_cons
].skb
;
125 unmap_array
[unmap_cons
].skb
= NULL
;
127 pci_unmap_single(bnad
->pcidev
,
128 pci_unmap_addr(&unmap_array
[unmap_cons
],
129 dma_addr
), skb_headlen(skb
),
132 pci_unmap_addr_set(&unmap_array
[unmap_cons
], dma_addr
, 0);
134 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
135 pci_unmap_page(bnad
->pcidev
,
136 pci_unmap_addr(&unmap_array
[unmap_cons
],
138 skb_shinfo(skb
)->frags
[i
].size
,
140 pci_unmap_addr_set(&unmap_array
[unmap_cons
], dma_addr
,
144 dev_kfree_skb_any(skb
);
148 /* Data Path Handlers */
151 * bnad_free_txbufs : Frees the Tx bufs on Tx completion
152 * Can be called in a) Interrupt context
157 bnad_free_txbufs(struct bnad
*bnad
,
160 u32 sent_packets
= 0, sent_bytes
= 0;
161 u16 wis
, unmap_cons
, updated_hw_cons
;
162 struct bnad_unmap_q
*unmap_q
= tcb
->unmap_q
;
163 struct bnad_skb_unmap
*unmap_array
;
168 * Just return if TX is stopped. This check is useful
169 * when bnad_free_txbufs() runs out of a tasklet scheduled
170 * before bnad_cb_tx_cleanup() cleared BNAD_RF_TX_STARTED bit
171 * but this routine runs actually after the cleanup has been
174 if (!test_bit(BNAD_RF_TX_STARTED
, &bnad
->run_flags
))
177 updated_hw_cons
= *(tcb
->hw_consumer_index
);
179 wis
= BNA_Q_INDEX_CHANGE(tcb
->consumer_index
,
180 updated_hw_cons
, tcb
->q_depth
);
182 BUG_ON(!(wis
<= BNA_QE_IN_USE_CNT(tcb
, tcb
->q_depth
)));
184 unmap_array
= unmap_q
->unmap_array
;
185 unmap_cons
= unmap_q
->consumer_index
;
187 prefetch(&unmap_array
[unmap_cons
+ 1]);
189 skb
= unmap_array
[unmap_cons
].skb
;
191 unmap_array
[unmap_cons
].skb
= NULL
;
194 sent_bytes
+= skb
->len
;
195 wis
-= BNA_TXQ_WI_NEEDED(1 + skb_shinfo(skb
)->nr_frags
);
197 pci_unmap_single(bnad
->pcidev
,
198 pci_unmap_addr(&unmap_array
[unmap_cons
],
199 dma_addr
), skb_headlen(skb
),
201 pci_unmap_addr_set(&unmap_array
[unmap_cons
], dma_addr
, 0);
202 BNA_QE_INDX_ADD(unmap_cons
, 1, unmap_q
->q_depth
);
204 prefetch(&unmap_array
[unmap_cons
+ 1]);
205 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
206 prefetch(&unmap_array
[unmap_cons
+ 1]);
208 pci_unmap_page(bnad
->pcidev
,
209 pci_unmap_addr(&unmap_array
[unmap_cons
],
211 skb_shinfo(skb
)->frags
[i
].size
,
213 pci_unmap_addr_set(&unmap_array
[unmap_cons
], dma_addr
,
215 BNA_QE_INDX_ADD(unmap_cons
, 1, unmap_q
->q_depth
);
217 dev_kfree_skb_any(skb
);
220 /* Update consumer pointers. */
221 tcb
->consumer_index
= updated_hw_cons
;
222 unmap_q
->consumer_index
= unmap_cons
;
224 tcb
->txq
->tx_packets
+= sent_packets
;
225 tcb
->txq
->tx_bytes
+= sent_bytes
;
230 /* Tx Free Tasklet function */
231 /* Frees for all the tcb's in all the Tx's */
233 * Scheduled from sending context, so that
234 * the fat Tx lock is not held for too long
235 * in the sending context.
238 bnad_tx_free_tasklet(unsigned long bnad_ptr
)
240 struct bnad
*bnad
= (struct bnad
*)bnad_ptr
;
245 for (i
= 0; i
< bnad
->num_tx
; i
++) {
246 for (j
= 0; j
< bnad
->num_txq_per_tx
; j
++) {
247 tcb
= bnad
->tx_info
[i
].tcb
[j
];
250 if (((u16
) (*tcb
->hw_consumer_index
) !=
251 tcb
->consumer_index
) &&
252 (!test_and_set_bit(BNAD_TXQ_FREE_SENT
,
254 acked
= bnad_free_txbufs(bnad
, tcb
);
255 bna_ib_ack(tcb
->i_dbell
, acked
);
256 smp_mb__before_clear_bit();
257 clear_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
);
264 bnad_tx(struct bnad
*bnad
, struct bna_tcb
*tcb
)
266 struct net_device
*netdev
= bnad
->netdev
;
269 if (test_and_set_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
))
272 sent
= bnad_free_txbufs(bnad
, tcb
);
274 if (netif_queue_stopped(netdev
) &&
275 netif_carrier_ok(netdev
) &&
276 BNA_QE_FREE_CNT(tcb
, tcb
->q_depth
) >=
277 BNAD_NETIF_WAKE_THRESHOLD
) {
278 netif_wake_queue(netdev
);
279 BNAD_UPDATE_CTR(bnad
, netif_queue_wakeup
);
281 bna_ib_ack(tcb
->i_dbell
, sent
);
283 bna_ib_ack(tcb
->i_dbell
, 0);
285 smp_mb__before_clear_bit();
286 clear_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
);
291 /* MSIX Tx Completion Handler */
293 bnad_msix_tx(int irq
, void *data
)
295 struct bna_tcb
*tcb
= (struct bna_tcb
*)data
;
296 struct bnad
*bnad
= tcb
->bnad
;
304 bnad_reset_rcb(struct bnad
*bnad
, struct bna_rcb
*rcb
)
306 struct bnad_unmap_q
*unmap_q
= rcb
->unmap_q
;
308 rcb
->producer_index
= 0;
309 rcb
->consumer_index
= 0;
311 unmap_q
->producer_index
= 0;
312 unmap_q
->consumer_index
= 0;
316 bnad_free_rxbufs(struct bnad
*bnad
, struct bna_rcb
*rcb
)
318 struct bnad_unmap_q
*unmap_q
;
321 unmap_q
= rcb
->unmap_q
;
322 while (BNA_QE_IN_USE_CNT(unmap_q
, unmap_q
->q_depth
)) {
323 skb
= unmap_q
->unmap_array
[unmap_q
->consumer_index
].skb
;
325 unmap_q
->unmap_array
[unmap_q
->consumer_index
].skb
= NULL
;
326 pci_unmap_single(bnad
->pcidev
, pci_unmap_addr(&unmap_q
->
327 unmap_array
[unmap_q
->consumer_index
],
328 dma_addr
), rcb
->rxq
->buffer_size
+
329 NET_IP_ALIGN
, PCI_DMA_FROMDEVICE
);
331 BNA_QE_INDX_ADD(unmap_q
->consumer_index
, 1, unmap_q
->q_depth
);
332 BNA_QE_INDX_ADD(rcb
->consumer_index
, 1, rcb
->q_depth
);
335 bnad_reset_rcb(bnad
, rcb
);
339 bnad_alloc_n_post_rxbufs(struct bnad
*bnad
, struct bna_rcb
*rcb
)
341 u16 to_alloc
, alloced
, unmap_prod
, wi_range
;
342 struct bnad_unmap_q
*unmap_q
= rcb
->unmap_q
;
343 struct bnad_skb_unmap
*unmap_array
;
344 struct bna_rxq_entry
*rxent
;
350 BNA_QE_FREE_CNT(unmap_q
, unmap_q
->q_depth
);
352 unmap_array
= unmap_q
->unmap_array
;
353 unmap_prod
= unmap_q
->producer_index
;
355 BNA_RXQ_QPGE_PTR_GET(unmap_prod
, rcb
->sw_qpt
, rxent
, wi_range
);
359 BNA_RXQ_QPGE_PTR_GET(unmap_prod
, rcb
->sw_qpt
, rxent
,
362 skb
= alloc_skb(rcb
->rxq
->buffer_size
+ NET_IP_ALIGN
,
364 if (unlikely(!skb
)) {
365 BNAD_UPDATE_CTR(bnad
, rxbuf_alloc_failed
);
368 skb
->dev
= bnad
->netdev
;
369 skb_reserve(skb
, NET_IP_ALIGN
);
370 unmap_array
[unmap_prod
].skb
= skb
;
371 dma_addr
= pci_map_single(bnad
->pcidev
, skb
->data
,
372 rcb
->rxq
->buffer_size
, PCI_DMA_FROMDEVICE
);
373 pci_unmap_addr_set(&unmap_array
[unmap_prod
], dma_addr
,
375 BNA_SET_DMA_ADDR(dma_addr
, &rxent
->host_addr
);
376 BNA_QE_INDX_ADD(unmap_prod
, 1, unmap_q
->q_depth
);
384 if (likely(alloced
)) {
385 unmap_q
->producer_index
= unmap_prod
;
386 rcb
->producer_index
= unmap_prod
;
388 bna_rxq_prod_indx_doorbell(rcb
);
393 * Locking is required in the enable path
394 * because it is called from a napi poll
395 * context, where the bna_lock is not held
396 * unlike the IRQ context.
399 bnad_enable_txrx_irqs(struct bnad
*bnad
)
406 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
407 for (i
= 0; i
< bnad
->num_tx
; i
++) {
408 for (j
= 0; j
< bnad
->num_txq_per_tx
; j
++) {
409 tcb
= bnad
->tx_info
[i
].tcb
[j
];
410 bna_ib_coalescing_timer_set(tcb
->i_dbell
,
411 tcb
->txq
->ib
->ib_config
.coalescing_timeo
);
412 bna_ib_ack(tcb
->i_dbell
, 0);
416 for (i
= 0; i
< bnad
->num_rx
; i
++) {
417 for (j
= 0; j
< bnad
->num_rxp_per_rx
; j
++) {
418 ccb
= bnad
->rx_info
[i
].rx_ctrl
[j
].ccb
;
419 bnad_enable_rx_irq_unsafe(ccb
);
422 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
426 bnad_refill_rxq(struct bnad
*bnad
, struct bna_rcb
*rcb
)
428 struct bnad_unmap_q
*unmap_q
= rcb
->unmap_q
;
430 if (!test_and_set_bit(BNAD_RXQ_REFILL
, &rcb
->flags
)) {
431 if (BNA_QE_FREE_CNT(unmap_q
, unmap_q
->q_depth
)
432 >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT
)
433 bnad_alloc_n_post_rxbufs(bnad
, rcb
);
434 smp_mb__before_clear_bit();
435 clear_bit(BNAD_RXQ_REFILL
, &rcb
->flags
);
440 bnad_poll_cq(struct bnad
*bnad
, struct bna_ccb
*ccb
, int budget
)
442 struct bna_cq_entry
*cmpl
, *next_cmpl
;
443 struct bna_rcb
*rcb
= NULL
;
444 unsigned int wi_range
, packets
= 0, wis
= 0;
445 struct bnad_unmap_q
*unmap_q
;
448 u32 qid0
= ccb
->rcb
[0]->rxq
->rxq_id
;
449 struct bna_pkt_rate
*pkt_rt
= &ccb
->pkt_rate
;
451 prefetch(bnad
->netdev
);
452 BNA_CQ_QPGE_PTR_GET(ccb
->producer_index
, ccb
->sw_qpt
, cmpl
,
454 BUG_ON(!(wi_range
<= ccb
->q_depth
));
455 while (cmpl
->valid
&& packets
< budget
) {
457 BNA_UPDATE_PKT_CNT(pkt_rt
, ntohs(cmpl
->length
));
459 if (qid0
== cmpl
->rxq_id
)
464 unmap_q
= rcb
->unmap_q
;
466 skb
= unmap_q
->unmap_array
[unmap_q
->consumer_index
].skb
;
468 unmap_q
->unmap_array
[unmap_q
->consumer_index
].skb
= NULL
;
469 pci_unmap_single(bnad
->pcidev
,
470 pci_unmap_addr(&unmap_q
->
471 unmap_array
[unmap_q
->
474 rcb
->rxq
->buffer_size
,
476 BNA_QE_INDX_ADD(unmap_q
->consumer_index
, 1, unmap_q
->q_depth
);
478 /* Should be more efficient ? Performance ? */
479 BNA_QE_INDX_ADD(rcb
->consumer_index
, 1, rcb
->q_depth
);
482 if (likely(--wi_range
))
483 next_cmpl
= cmpl
+ 1;
485 BNA_QE_INDX_ADD(ccb
->producer_index
, wis
, ccb
->q_depth
);
487 BNA_CQ_QPGE_PTR_GET(ccb
->producer_index
, ccb
->sw_qpt
,
488 next_cmpl
, wi_range
);
489 BUG_ON(!(wi_range
<= ccb
->q_depth
));
493 flags
= ntohl(cmpl
->flags
);
496 (BNA_CQ_EF_MAC_ERROR
| BNA_CQ_EF_FCS_ERROR
|
497 BNA_CQ_EF_TOO_LONG
))) {
498 dev_kfree_skb_any(skb
);
499 rcb
->rxq
->rx_packets_with_error
++;
503 skb_put(skb
, ntohs(cmpl
->length
));
506 (((flags
& BNA_CQ_EF_IPV4
) &&
507 (flags
& BNA_CQ_EF_L3_CKSUM_OK
)) ||
508 (flags
& BNA_CQ_EF_IPV6
)) &&
509 (flags
& (BNA_CQ_EF_TCP
| BNA_CQ_EF_UDP
)) &&
510 (flags
& BNA_CQ_EF_L4_CKSUM_OK
)))
511 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
513 skb_checksum_none_assert(skb
);
515 rcb
->rxq
->rx_packets
++;
516 rcb
->rxq
->rx_bytes
+= skb
->len
;
517 skb
->protocol
= eth_type_trans(skb
, bnad
->netdev
);
519 if (bnad
->vlan_grp
&& (flags
& BNA_CQ_EF_VLAN
)) {
520 struct bnad_rx_ctrl
*rx_ctrl
=
521 (struct bnad_rx_ctrl
*)ccb
->ctrl
;
522 if (skb
->ip_summed
== CHECKSUM_UNNECESSARY
)
523 vlan_gro_receive(&rx_ctrl
->napi
, bnad
->vlan_grp
,
524 ntohs(cmpl
->vlan_tag
), skb
);
526 vlan_hwaccel_receive_skb(skb
,
528 ntohs(cmpl
->vlan_tag
));
530 } else { /* Not VLAN tagged/stripped */
531 struct bnad_rx_ctrl
*rx_ctrl
=
532 (struct bnad_rx_ctrl
*)ccb
->ctrl
;
533 if (skb
->ip_summed
== CHECKSUM_UNNECESSARY
)
534 napi_gro_receive(&rx_ctrl
->napi
, skb
);
536 netif_receive_skb(skb
);
544 BNA_QE_INDX_ADD(ccb
->producer_index
, wis
, ccb
->q_depth
);
547 bna_ib_ack(ccb
->i_dbell
, packets
);
548 bnad_refill_rxq(bnad
, ccb
->rcb
[0]);
550 bnad_refill_rxq(bnad
, ccb
->rcb
[1]);
552 bna_ib_ack(ccb
->i_dbell
, 0);
558 bnad_disable_rx_irq(struct bnad
*bnad
, struct bna_ccb
*ccb
)
560 bna_ib_coalescing_timer_set(ccb
->i_dbell
, 0);
561 bna_ib_ack(ccb
->i_dbell
, 0);
565 bnad_enable_rx_irq(struct bnad
*bnad
, struct bna_ccb
*ccb
)
569 spin_lock_irqsave(&bnad
->bna_lock
, flags
); /* Because of polling context */
570 bnad_enable_rx_irq_unsafe(ccb
);
571 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
575 bnad_netif_rx_schedule_poll(struct bnad
*bnad
, struct bna_ccb
*ccb
)
577 struct bnad_rx_ctrl
*rx_ctrl
= (struct bnad_rx_ctrl
*)(ccb
->ctrl
);
578 if (likely(napi_schedule_prep((&rx_ctrl
->napi
)))) {
579 bnad_disable_rx_irq(bnad
, ccb
);
580 __napi_schedule((&rx_ctrl
->napi
));
582 BNAD_UPDATE_CTR(bnad
, netif_rx_schedule
);
585 /* MSIX Rx Path Handler */
587 bnad_msix_rx(int irq
, void *data
)
589 struct bna_ccb
*ccb
= (struct bna_ccb
*)data
;
590 struct bnad
*bnad
= ccb
->bnad
;
592 bnad_netif_rx_schedule_poll(bnad
, ccb
);
597 /* Interrupt handlers */
599 /* Mbox Interrupt Handlers */
601 bnad_msix_mbox_handler(int irq
, void *data
)
605 struct net_device
*netdev
= data
;
608 bnad
= netdev_priv(netdev
);
610 /* BNA_ISR_GET(bnad); Inc Ref count */
611 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
613 bna_intr_status_get(&bnad
->bna
, intr_status
);
615 if (BNA_IS_MBOX_ERR_INTR(intr_status
))
616 bna_mbox_handler(&bnad
->bna
, intr_status
);
618 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
620 /* BNAD_ISR_PUT(bnad); Dec Ref count */
625 bnad_isr(int irq
, void *data
)
630 struct net_device
*netdev
= data
;
631 struct bnad
*bnad
= netdev_priv(netdev
);
632 struct bnad_rx_info
*rx_info
;
633 struct bnad_rx_ctrl
*rx_ctrl
;
635 if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED
, &bnad
->run_flags
)))
638 bna_intr_status_get(&bnad
->bna
, intr_status
);
640 if (unlikely(!intr_status
))
643 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
645 if (BNA_IS_MBOX_ERR_INTR(intr_status
)) {
646 bna_mbox_handler(&bnad
->bna
, intr_status
);
647 if (!BNA_IS_INTX_DATA_INTR(intr_status
)) {
648 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
652 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
654 /* Process data interrupts */
655 for (i
= 0; i
< bnad
->num_rx
; i
++) {
656 rx_info
= &bnad
->rx_info
[i
];
659 for (j
= 0; j
< bnad
->num_rxp_per_rx
; j
++) {
660 rx_ctrl
= &rx_info
->rx_ctrl
[j
];
662 bnad_netif_rx_schedule_poll(bnad
,
671 * Called in interrupt / callback context
672 * with bna_lock held, so cfg_flags access is OK
675 bnad_enable_mbox_irq(struct bnad
*bnad
)
677 int irq
= BNAD_GET_MBOX_IRQ(bnad
);
679 if (test_and_clear_bit(BNAD_RF_MBOX_IRQ_DISABLED
, &bnad
->run_flags
))
680 if (bnad
->cfg_flags
& BNAD_CF_MSIX
)
683 BNAD_UPDATE_CTR(bnad
, mbox_intr_enabled
);
687 * Called with bnad->bna_lock held b'cos of
688 * bnad->cfg_flags access.
691 bnad_disable_mbox_irq(struct bnad
*bnad
)
693 int irq
= BNAD_GET_MBOX_IRQ(bnad
);
696 if (!test_and_set_bit(BNAD_RF_MBOX_IRQ_DISABLED
, &bnad
->run_flags
))
697 if (bnad
->cfg_flags
& BNAD_CF_MSIX
)
698 disable_irq_nosync(irq
);
700 BNAD_UPDATE_CTR(bnad
, mbox_intr_disabled
);
703 /* Control Path Handlers */
707 bnad_cb_device_enable_mbox_intr(struct bnad
*bnad
)
709 bnad_enable_mbox_irq(bnad
);
713 bnad_cb_device_disable_mbox_intr(struct bnad
*bnad
)
715 bnad_disable_mbox_irq(bnad
);
719 bnad_cb_device_enabled(struct bnad
*bnad
, enum bna_cb_status status
)
721 complete(&bnad
->bnad_completions
.ioc_comp
);
722 bnad
->bnad_completions
.ioc_comp_status
= status
;
726 bnad_cb_device_disabled(struct bnad
*bnad
, enum bna_cb_status status
)
728 complete(&bnad
->bnad_completions
.ioc_comp
);
729 bnad
->bnad_completions
.ioc_comp_status
= status
;
733 bnad_cb_port_disabled(void *arg
, enum bna_cb_status status
)
735 struct bnad
*bnad
= (struct bnad
*)arg
;
737 complete(&bnad
->bnad_completions
.port_comp
);
739 netif_carrier_off(bnad
->netdev
);
743 bnad_cb_port_link_status(struct bnad
*bnad
,
744 enum bna_link_status link_status
)
748 link_up
= (link_status
== BNA_LINK_UP
) || (link_status
== BNA_CEE_UP
);
750 if (link_status
== BNA_CEE_UP
) {
751 set_bit(BNAD_RF_CEE_RUNNING
, &bnad
->run_flags
);
752 BNAD_UPDATE_CTR(bnad
, cee_up
);
754 clear_bit(BNAD_RF_CEE_RUNNING
, &bnad
->run_flags
);
757 if (!netif_carrier_ok(bnad
->netdev
)) {
758 pr_warn("bna: %s link up\n",
760 netif_carrier_on(bnad
->netdev
);
761 BNAD_UPDATE_CTR(bnad
, link_toggle
);
762 if (test_bit(BNAD_RF_TX_STARTED
, &bnad
->run_flags
)) {
763 /* Force an immediate Transmit Schedule */
764 pr_info("bna: %s TX_STARTED\n",
766 netif_wake_queue(bnad
->netdev
);
767 BNAD_UPDATE_CTR(bnad
, netif_queue_wakeup
);
769 netif_stop_queue(bnad
->netdev
);
770 BNAD_UPDATE_CTR(bnad
, netif_queue_stop
);
774 if (netif_carrier_ok(bnad
->netdev
)) {
775 pr_warn("bna: %s link down\n",
777 netif_carrier_off(bnad
->netdev
);
778 BNAD_UPDATE_CTR(bnad
, link_toggle
);
784 bnad_cb_tx_disabled(void *arg
, struct bna_tx
*tx
,
785 enum bna_cb_status status
)
787 struct bnad
*bnad
= (struct bnad
*)arg
;
789 complete(&bnad
->bnad_completions
.tx_comp
);
793 bnad_cb_tcb_setup(struct bnad
*bnad
, struct bna_tcb
*tcb
)
795 struct bnad_tx_info
*tx_info
=
796 (struct bnad_tx_info
*)tcb
->txq
->tx
->priv
;
797 struct bnad_unmap_q
*unmap_q
= tcb
->unmap_q
;
799 tx_info
->tcb
[tcb
->id
] = tcb
;
800 unmap_q
->producer_index
= 0;
801 unmap_q
->consumer_index
= 0;
802 unmap_q
->q_depth
= BNAD_TX_UNMAPQ_DEPTH
;
806 bnad_cb_tcb_destroy(struct bnad
*bnad
, struct bna_tcb
*tcb
)
808 struct bnad_tx_info
*tx_info
=
809 (struct bnad_tx_info
*)tcb
->txq
->tx
->priv
;
811 tx_info
->tcb
[tcb
->id
] = NULL
;
815 bnad_cb_rcb_setup(struct bnad
*bnad
, struct bna_rcb
*rcb
)
817 struct bnad_unmap_q
*unmap_q
= rcb
->unmap_q
;
819 unmap_q
->producer_index
= 0;
820 unmap_q
->consumer_index
= 0;
821 unmap_q
->q_depth
= BNAD_RX_UNMAPQ_DEPTH
;
825 bnad_cb_ccb_setup(struct bnad
*bnad
, struct bna_ccb
*ccb
)
827 struct bnad_rx_info
*rx_info
=
828 (struct bnad_rx_info
*)ccb
->cq
->rx
->priv
;
830 rx_info
->rx_ctrl
[ccb
->id
].ccb
= ccb
;
831 ccb
->ctrl
= &rx_info
->rx_ctrl
[ccb
->id
];
835 bnad_cb_ccb_destroy(struct bnad
*bnad
, struct bna_ccb
*ccb
)
837 struct bnad_rx_info
*rx_info
=
838 (struct bnad_rx_info
*)ccb
->cq
->rx
->priv
;
840 rx_info
->rx_ctrl
[ccb
->id
].ccb
= NULL
;
844 bnad_cb_tx_stall(struct bnad
*bnad
, struct bna_tcb
*tcb
)
846 struct bnad_tx_info
*tx_info
=
847 (struct bnad_tx_info
*)tcb
->txq
->tx
->priv
;
849 if (tx_info
!= &bnad
->tx_info
[0])
852 clear_bit(BNAD_RF_TX_STARTED
, &bnad
->run_flags
);
853 netif_stop_queue(bnad
->netdev
);
854 pr_info("bna: %s TX_STOPPED\n", bnad
->netdev
->name
);
858 bnad_cb_tx_resume(struct bnad
*bnad
, struct bna_tcb
*tcb
)
860 if (test_and_set_bit(BNAD_RF_TX_STARTED
, &bnad
->run_flags
))
863 if (netif_carrier_ok(bnad
->netdev
)) {
864 pr_info("bna: %s TX_STARTED\n", bnad
->netdev
->name
);
865 netif_wake_queue(bnad
->netdev
);
866 BNAD_UPDATE_CTR(bnad
, netif_queue_wakeup
);
871 bnad_cb_tx_cleanup(struct bnad
*bnad
, struct bna_tcb
*tcb
)
873 struct bnad_unmap_q
*unmap_q
;
875 if (!tcb
|| (!tcb
->unmap_q
))
878 unmap_q
= tcb
->unmap_q
;
879 if (!unmap_q
->unmap_array
)
882 if (test_and_set_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
))
885 bnad_free_all_txbufs(bnad
, tcb
);
887 unmap_q
->producer_index
= 0;
888 unmap_q
->consumer_index
= 0;
890 smp_mb__before_clear_bit();
891 clear_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
);
895 bnad_cb_rx_cleanup(struct bnad
*bnad
,
898 bnad_cq_cmpl_init(bnad
, ccb
);
900 bnad_free_rxbufs(bnad
, ccb
->rcb
[0]);
901 clear_bit(BNAD_RXQ_STARTED
, &ccb
->rcb
[0]->flags
);
904 bnad_free_rxbufs(bnad
, ccb
->rcb
[1]);
905 clear_bit(BNAD_RXQ_STARTED
, &ccb
->rcb
[1]->flags
);
910 bnad_cb_rx_post(struct bnad
*bnad
, struct bna_rcb
*rcb
)
912 struct bnad_unmap_q
*unmap_q
= rcb
->unmap_q
;
914 set_bit(BNAD_RXQ_STARTED
, &rcb
->flags
);
916 /* Now allocate & post buffers for this RCB */
917 /* !!Allocation in callback context */
918 if (!test_and_set_bit(BNAD_RXQ_REFILL
, &rcb
->flags
)) {
919 if (BNA_QE_FREE_CNT(unmap_q
, unmap_q
->q_depth
)
920 >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT
)
921 bnad_alloc_n_post_rxbufs(bnad
, rcb
);
922 smp_mb__before_clear_bit();
923 clear_bit(BNAD_RXQ_REFILL
, &rcb
->flags
);
928 bnad_cb_rx_disabled(void *arg
, struct bna_rx
*rx
,
929 enum bna_cb_status status
)
931 struct bnad
*bnad
= (struct bnad
*)arg
;
933 complete(&bnad
->bnad_completions
.rx_comp
);
937 bnad_cb_rx_mcast_add(struct bnad
*bnad
, struct bna_rx
*rx
,
938 enum bna_cb_status status
)
940 bnad
->bnad_completions
.mcast_comp_status
= status
;
941 complete(&bnad
->bnad_completions
.mcast_comp
);
945 bnad_cb_stats_get(struct bnad
*bnad
, enum bna_cb_status status
,
946 struct bna_stats
*stats
)
948 if (status
== BNA_CB_SUCCESS
)
949 BNAD_UPDATE_CTR(bnad
, hw_stats_updates
);
951 if (!netif_running(bnad
->netdev
) ||
952 !test_bit(BNAD_RF_STATS_TIMER_RUNNING
, &bnad
->run_flags
))
955 mod_timer(&bnad
->stats_timer
,
956 jiffies
+ msecs_to_jiffies(BNAD_STATS_TIMER_FREQ
));
959 /* Resource allocation, free functions */
962 bnad_mem_free(struct bnad
*bnad
,
963 struct bna_mem_info
*mem_info
)
968 if (mem_info
->mdl
== NULL
)
971 for (i
= 0; i
< mem_info
->num
; i
++) {
972 if (mem_info
->mdl
[i
].kva
!= NULL
) {
973 if (mem_info
->mem_type
== BNA_MEM_T_DMA
) {
974 BNA_GET_DMA_ADDR(&(mem_info
->mdl
[i
].dma
),
976 pci_free_consistent(bnad
->pcidev
,
977 mem_info
->mdl
[i
].len
,
978 mem_info
->mdl
[i
].kva
, dma_pa
);
980 kfree(mem_info
->mdl
[i
].kva
);
983 kfree(mem_info
->mdl
);
984 mem_info
->mdl
= NULL
;
988 bnad_mem_alloc(struct bnad
*bnad
,
989 struct bna_mem_info
*mem_info
)
994 if ((mem_info
->num
== 0) || (mem_info
->len
== 0)) {
995 mem_info
->mdl
= NULL
;
999 mem_info
->mdl
= kcalloc(mem_info
->num
, sizeof(struct bna_mem_descr
),
1001 if (mem_info
->mdl
== NULL
)
1004 if (mem_info
->mem_type
== BNA_MEM_T_DMA
) {
1005 for (i
= 0; i
< mem_info
->num
; i
++) {
1006 mem_info
->mdl
[i
].len
= mem_info
->len
;
1007 mem_info
->mdl
[i
].kva
=
1008 pci_alloc_consistent(bnad
->pcidev
,
1009 mem_info
->len
, &dma_pa
);
1011 if (mem_info
->mdl
[i
].kva
== NULL
)
1014 BNA_SET_DMA_ADDR(dma_pa
,
1015 &(mem_info
->mdl
[i
].dma
));
1018 for (i
= 0; i
< mem_info
->num
; i
++) {
1019 mem_info
->mdl
[i
].len
= mem_info
->len
;
1020 mem_info
->mdl
[i
].kva
= kzalloc(mem_info
->len
,
1022 if (mem_info
->mdl
[i
].kva
== NULL
)
1030 bnad_mem_free(bnad
, mem_info
);
1034 /* Free IRQ for Mailbox */
1036 bnad_mbox_irq_free(struct bnad
*bnad
,
1037 struct bna_intr_info
*intr_info
)
1040 unsigned long flags
;
1042 if (intr_info
->idl
== NULL
)
1045 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1046 bnad_disable_mbox_irq(bnad
);
1047 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1049 irq
= BNAD_GET_MBOX_IRQ(bnad
);
1050 free_irq(irq
, bnad
->netdev
);
1052 kfree(intr_info
->idl
);
1056 * Allocates IRQ for Mailbox, but keep it disabled
1057 * This will be enabled once we get the mbox enable callback
1061 bnad_mbox_irq_alloc(struct bnad
*bnad
,
1062 struct bna_intr_info
*intr_info
)
1065 unsigned long flags
;
1067 irq_handler_t irq_handler
;
1069 /* Mbox should use only 1 vector */
1071 intr_info
->idl
= kzalloc(sizeof(*(intr_info
->idl
)), GFP_KERNEL
);
1072 if (!intr_info
->idl
)
1075 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1076 if (bnad
->cfg_flags
& BNAD_CF_MSIX
) {
1077 irq_handler
= (irq_handler_t
)bnad_msix_mbox_handler
;
1078 irq
= bnad
->msix_table
[bnad
->msix_num
- 1].vector
;
1080 intr_info
->intr_type
= BNA_INTR_T_MSIX
;
1081 intr_info
->idl
[0].vector
= bnad
->msix_num
- 1;
1083 irq_handler
= (irq_handler_t
)bnad_isr
;
1084 irq
= bnad
->pcidev
->irq
;
1085 flags
= IRQF_SHARED
;
1086 intr_info
->intr_type
= BNA_INTR_T_INTX
;
1087 /* intr_info->idl.vector = 0 ? */
1089 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1091 sprintf(bnad
->mbox_irq_name
, "%s", BNAD_NAME
);
1094 * Set the Mbox IRQ disable flag, so that the IRQ handler
1095 * called from request_irq() for SHARED IRQs do not execute
1097 set_bit(BNAD_RF_MBOX_IRQ_DISABLED
, &bnad
->run_flags
);
1099 err
= request_irq(irq
, irq_handler
, flags
,
1100 bnad
->mbox_irq_name
, bnad
->netdev
);
1103 kfree(intr_info
->idl
);
1104 intr_info
->idl
= NULL
;
1108 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1110 if (bnad
->cfg_flags
& BNAD_CF_MSIX
)
1111 disable_irq_nosync(irq
);
1113 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1118 bnad_txrx_irq_free(struct bnad
*bnad
, struct bna_intr_info
*intr_info
)
1120 kfree(intr_info
->idl
);
1121 intr_info
->idl
= NULL
;
1124 /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */
1126 bnad_txrx_irq_alloc(struct bnad
*bnad
, enum bnad_intr_source src
,
1127 uint txrx_id
, struct bna_intr_info
*intr_info
)
1129 int i
, vector_start
= 0;
1131 unsigned long flags
;
1133 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1134 cfg_flags
= bnad
->cfg_flags
;
1135 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1137 if (cfg_flags
& BNAD_CF_MSIX
) {
1138 intr_info
->intr_type
= BNA_INTR_T_MSIX
;
1139 intr_info
->idl
= kcalloc(intr_info
->num
,
1140 sizeof(struct bna_intr_descr
),
1142 if (!intr_info
->idl
)
1147 vector_start
= txrx_id
;
1151 vector_start
= bnad
->num_tx
* bnad
->num_txq_per_tx
+
1159 for (i
= 0; i
< intr_info
->num
; i
++)
1160 intr_info
->idl
[i
].vector
= vector_start
+ i
;
1162 intr_info
->intr_type
= BNA_INTR_T_INTX
;
1164 intr_info
->idl
= kcalloc(intr_info
->num
,
1165 sizeof(struct bna_intr_descr
),
1167 if (!intr_info
->idl
)
1172 intr_info
->idl
[0].vector
= 0x1; /* Bit mask : Tx IB */
1176 intr_info
->idl
[0].vector
= 0x2; /* Bit mask : Rx IB */
1184 * NOTE: Should be called for MSIX only
1185 * Unregisters Tx MSIX vector(s) from the kernel
1188 bnad_tx_msix_unregister(struct bnad
*bnad
, struct bnad_tx_info
*tx_info
,
1194 for (i
= 0; i
< num_txqs
; i
++) {
1195 if (tx_info
->tcb
[i
] == NULL
)
1198 vector_num
= tx_info
->tcb
[i
]->intr_vector
;
1199 free_irq(bnad
->msix_table
[vector_num
].vector
, tx_info
->tcb
[i
]);
1204 * NOTE: Should be called for MSIX only
1205 * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
1208 bnad_tx_msix_register(struct bnad
*bnad
, struct bnad_tx_info
*tx_info
,
1209 uint tx_id
, int num_txqs
)
1215 for (i
= 0; i
< num_txqs
; i
++) {
1216 vector_num
= tx_info
->tcb
[i
]->intr_vector
;
1217 sprintf(tx_info
->tcb
[i
]->name
, "%s TXQ %d", bnad
->netdev
->name
,
1218 tx_id
+ tx_info
->tcb
[i
]->id
);
1219 err
= request_irq(bnad
->msix_table
[vector_num
].vector
,
1220 (irq_handler_t
)bnad_msix_tx
, 0,
1221 tx_info
->tcb
[i
]->name
,
1231 bnad_tx_msix_unregister(bnad
, tx_info
, (i
- 1));
1236 * NOTE: Should be called for MSIX only
1237 * Unregisters Rx MSIX vector(s) from the kernel
1240 bnad_rx_msix_unregister(struct bnad
*bnad
, struct bnad_rx_info
*rx_info
,
1246 for (i
= 0; i
< num_rxps
; i
++) {
1247 if (rx_info
->rx_ctrl
[i
].ccb
== NULL
)
1250 vector_num
= rx_info
->rx_ctrl
[i
].ccb
->intr_vector
;
1251 free_irq(bnad
->msix_table
[vector_num
].vector
,
1252 rx_info
->rx_ctrl
[i
].ccb
);
1257 * NOTE: Should be called for MSIX only
1258 * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
1261 bnad_rx_msix_register(struct bnad
*bnad
, struct bnad_rx_info
*rx_info
,
1262 uint rx_id
, int num_rxps
)
1268 for (i
= 0; i
< num_rxps
; i
++) {
1269 vector_num
= rx_info
->rx_ctrl
[i
].ccb
->intr_vector
;
1270 sprintf(rx_info
->rx_ctrl
[i
].ccb
->name
, "%s CQ %d",
1272 rx_id
+ rx_info
->rx_ctrl
[i
].ccb
->id
);
1273 err
= request_irq(bnad
->msix_table
[vector_num
].vector
,
1274 (irq_handler_t
)bnad_msix_rx
, 0,
1275 rx_info
->rx_ctrl
[i
].ccb
->name
,
1276 rx_info
->rx_ctrl
[i
].ccb
);
1285 bnad_rx_msix_unregister(bnad
, rx_info
, (i
- 1));
1289 /* Free Tx object Resources */
1291 bnad_tx_res_free(struct bnad
*bnad
, struct bna_res_info
*res_info
)
1295 for (i
= 0; i
< BNA_TX_RES_T_MAX
; i
++) {
1296 if (res_info
[i
].res_type
== BNA_RES_T_MEM
)
1297 bnad_mem_free(bnad
, &res_info
[i
].res_u
.mem_info
);
1298 else if (res_info
[i
].res_type
== BNA_RES_T_INTR
)
1299 bnad_txrx_irq_free(bnad
, &res_info
[i
].res_u
.intr_info
);
1303 /* Allocates memory and interrupt resources for Tx object */
1305 bnad_tx_res_alloc(struct bnad
*bnad
, struct bna_res_info
*res_info
,
1310 for (i
= 0; i
< BNA_TX_RES_T_MAX
; i
++) {
1311 if (res_info
[i
].res_type
== BNA_RES_T_MEM
)
1312 err
= bnad_mem_alloc(bnad
,
1313 &res_info
[i
].res_u
.mem_info
);
1314 else if (res_info
[i
].res_type
== BNA_RES_T_INTR
)
1315 err
= bnad_txrx_irq_alloc(bnad
, BNAD_INTR_TX
, tx_id
,
1316 &res_info
[i
].res_u
.intr_info
);
1323 bnad_tx_res_free(bnad
, res_info
);
1327 /* Free Rx object Resources */
1329 bnad_rx_res_free(struct bnad
*bnad
, struct bna_res_info
*res_info
)
1333 for (i
= 0; i
< BNA_RX_RES_T_MAX
; i
++) {
1334 if (res_info
[i
].res_type
== BNA_RES_T_MEM
)
1335 bnad_mem_free(bnad
, &res_info
[i
].res_u
.mem_info
);
1336 else if (res_info
[i
].res_type
== BNA_RES_T_INTR
)
1337 bnad_txrx_irq_free(bnad
, &res_info
[i
].res_u
.intr_info
);
1341 /* Allocates memory and interrupt resources for Rx object */
1343 bnad_rx_res_alloc(struct bnad
*bnad
, struct bna_res_info
*res_info
,
1348 /* All memory needs to be allocated before setup_ccbs */
1349 for (i
= 0; i
< BNA_RX_RES_T_MAX
; i
++) {
1350 if (res_info
[i
].res_type
== BNA_RES_T_MEM
)
1351 err
= bnad_mem_alloc(bnad
,
1352 &res_info
[i
].res_u
.mem_info
);
1353 else if (res_info
[i
].res_type
== BNA_RES_T_INTR
)
1354 err
= bnad_txrx_irq_alloc(bnad
, BNAD_INTR_RX
, rx_id
,
1355 &res_info
[i
].res_u
.intr_info
);
1362 bnad_rx_res_free(bnad
, res_info
);
1366 /* Timer callbacks */
1369 bnad_ioc_timeout(unsigned long data
)
1371 struct bnad
*bnad
= (struct bnad
*)data
;
1372 unsigned long flags
;
1374 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1375 bfa_nw_ioc_timeout((void *) &bnad
->bna
.device
.ioc
);
1376 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1380 bnad_ioc_hb_check(unsigned long data
)
1382 struct bnad
*bnad
= (struct bnad
*)data
;
1383 unsigned long flags
;
1385 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1386 bfa_nw_ioc_hb_check((void *) &bnad
->bna
.device
.ioc
);
1387 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1391 bnad_ioc_sem_timeout(unsigned long data
)
1393 struct bnad
*bnad
= (struct bnad
*)data
;
1394 unsigned long flags
;
1396 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1397 bfa_nw_ioc_sem_timeout((void *) &bnad
->bna
.device
.ioc
);
1398 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1402 * All timer routines use bnad->bna_lock to protect against
1403 * the following race, which may occur in case of no locking:
1411 /* b) Dynamic Interrupt Moderation Timer */
1413 bnad_dim_timeout(unsigned long data
)
1415 struct bnad
*bnad
= (struct bnad
*)data
;
1416 struct bnad_rx_info
*rx_info
;
1417 struct bnad_rx_ctrl
*rx_ctrl
;
1419 unsigned long flags
;
1421 if (!netif_carrier_ok(bnad
->netdev
))
1424 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1425 for (i
= 0; i
< bnad
->num_rx
; i
++) {
1426 rx_info
= &bnad
->rx_info
[i
];
1429 for (j
= 0; j
< bnad
->num_rxp_per_rx
; j
++) {
1430 rx_ctrl
= &rx_info
->rx_ctrl
[j
];
1433 bna_rx_dim_update(rx_ctrl
->ccb
);
1437 /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */
1438 if (test_bit(BNAD_RF_DIM_TIMER_RUNNING
, &bnad
->run_flags
))
1439 mod_timer(&bnad
->dim_timer
,
1440 jiffies
+ msecs_to_jiffies(BNAD_DIM_TIMER_FREQ
));
1441 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1444 /* c) Statistics Timer */
1446 bnad_stats_timeout(unsigned long data
)
1448 struct bnad
*bnad
= (struct bnad
*)data
;
1449 unsigned long flags
;
1451 if (!netif_running(bnad
->netdev
) ||
1452 !test_bit(BNAD_RF_STATS_TIMER_RUNNING
, &bnad
->run_flags
))
1455 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1456 bna_stats_get(&bnad
->bna
);
1457 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1461 * Set up timer for DIM
1462 * Called with bnad->bna_lock held
1465 bnad_dim_timer_start(struct bnad
*bnad
)
1467 if (bnad
->cfg_flags
& BNAD_CF_DIM_ENABLED
&&
1468 !test_bit(BNAD_RF_DIM_TIMER_RUNNING
, &bnad
->run_flags
)) {
1469 setup_timer(&bnad
->dim_timer
, bnad_dim_timeout
,
1470 (unsigned long)bnad
);
1471 set_bit(BNAD_RF_DIM_TIMER_RUNNING
, &bnad
->run_flags
);
1472 mod_timer(&bnad
->dim_timer
,
1473 jiffies
+ msecs_to_jiffies(BNAD_DIM_TIMER_FREQ
));
1478 * Set up timer for statistics
1479 * Called with mutex_lock(&bnad->conf_mutex) held
1482 bnad_stats_timer_start(struct bnad
*bnad
)
1484 unsigned long flags
;
1486 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1487 if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING
, &bnad
->run_flags
)) {
1488 setup_timer(&bnad
->stats_timer
, bnad_stats_timeout
,
1489 (unsigned long)bnad
);
1490 mod_timer(&bnad
->stats_timer
,
1491 jiffies
+ msecs_to_jiffies(BNAD_STATS_TIMER_FREQ
));
1493 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1497 * Stops the stats timer
1498 * Called with mutex_lock(&bnad->conf_mutex) held
1501 bnad_stats_timer_stop(struct bnad
*bnad
)
1504 unsigned long flags
;
1506 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1507 if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING
, &bnad
->run_flags
))
1509 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1511 del_timer_sync(&bnad
->stats_timer
);
1517 bnad_netdev_mc_list_get(struct net_device
*netdev
, u8
*mc_list
)
1519 int i
= 1; /* Index 0 has broadcast address */
1520 struct netdev_hw_addr
*mc_addr
;
1522 netdev_for_each_mc_addr(mc_addr
, netdev
) {
1523 memcpy(&mc_list
[i
* ETH_ALEN
], &mc_addr
->addr
[0],
1530 bnad_napi_poll_rx(struct napi_struct
*napi
, int budget
)
1532 struct bnad_rx_ctrl
*rx_ctrl
=
1533 container_of(napi
, struct bnad_rx_ctrl
, napi
);
1534 struct bna_ccb
*ccb
;
1542 if (!netif_carrier_ok(bnad
->netdev
))
1545 rcvd
= bnad_poll_cq(bnad
, ccb
, budget
);
1550 napi_complete((napi
));
1552 BNAD_UPDATE_CTR(bnad
, netif_rx_complete
);
1554 bnad_enable_rx_irq(bnad
, ccb
);
1559 bnad_napi_poll_txrx(struct napi_struct
*napi
, int budget
)
1561 struct bnad_rx_ctrl
*rx_ctrl
=
1562 container_of(napi
, struct bnad_rx_ctrl
, napi
);
1563 struct bna_ccb
*ccb
;
1572 if (!netif_carrier_ok(bnad
->netdev
))
1575 /* Handle Tx Completions, if any */
1576 for (i
= 0; i
< bnad
->num_tx
; i
++) {
1577 for (j
= 0; j
< bnad
->num_txq_per_tx
; j
++)
1578 bnad_tx(bnad
, bnad
->tx_info
[i
].tcb
[j
]);
1581 /* Handle Rx Completions */
1582 rcvd
= bnad_poll_cq(bnad
, ccb
, budget
);
1586 napi_complete((napi
));
1588 BNAD_UPDATE_CTR(bnad
, netif_rx_complete
);
1590 bnad_enable_txrx_irqs(bnad
);
1595 bnad_napi_enable(struct bnad
*bnad
, u32 rx_id
)
1597 int (*napi_poll
) (struct napi_struct
*, int);
1598 struct bnad_rx_ctrl
*rx_ctrl
;
1600 unsigned long flags
;
1602 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1603 if (bnad
->cfg_flags
& BNAD_CF_MSIX
)
1604 napi_poll
= bnad_napi_poll_rx
;
1606 napi_poll
= bnad_napi_poll_txrx
;
1607 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1609 /* Initialize & enable NAPI */
1610 for (i
= 0; i
< bnad
->num_rxp_per_rx
; i
++) {
1611 rx_ctrl
= &bnad
->rx_info
[rx_id
].rx_ctrl
[i
];
1612 netif_napi_add(bnad
->netdev
, &rx_ctrl
->napi
,
1614 napi_enable(&rx_ctrl
->napi
);
1619 bnad_napi_disable(struct bnad
*bnad
, u32 rx_id
)
1623 /* First disable and then clean up */
1624 for (i
= 0; i
< bnad
->num_rxp_per_rx
; i
++) {
1625 napi_disable(&bnad
->rx_info
[rx_id
].rx_ctrl
[i
].napi
);
1626 netif_napi_del(&bnad
->rx_info
[rx_id
].rx_ctrl
[i
].napi
);
1630 /* Should be held with conf_lock held */
1632 bnad_cleanup_tx(struct bnad
*bnad
, uint tx_id
)
1634 struct bnad_tx_info
*tx_info
= &bnad
->tx_info
[tx_id
];
1635 struct bna_res_info
*res_info
= &bnad
->tx_res_info
[tx_id
].res_info
[0];
1636 unsigned long flags
;
1641 init_completion(&bnad
->bnad_completions
.tx_comp
);
1642 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1643 bna_tx_disable(tx_info
->tx
, BNA_HARD_CLEANUP
, bnad_cb_tx_disabled
);
1644 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1645 wait_for_completion(&bnad
->bnad_completions
.tx_comp
);
1647 if (tx_info
->tcb
[0]->intr_type
== BNA_INTR_T_MSIX
)
1648 bnad_tx_msix_unregister(bnad
, tx_info
,
1649 bnad
->num_txq_per_tx
);
1651 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1652 bna_tx_destroy(tx_info
->tx
);
1653 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1658 tasklet_kill(&bnad
->tx_free_tasklet
);
1660 bnad_tx_res_free(bnad
, res_info
);
1663 /* Should be held with conf_lock held */
1665 bnad_setup_tx(struct bnad
*bnad
, uint tx_id
)
1668 struct bnad_tx_info
*tx_info
= &bnad
->tx_info
[tx_id
];
1669 struct bna_res_info
*res_info
= &bnad
->tx_res_info
[tx_id
].res_info
[0];
1670 struct bna_intr_info
*intr_info
=
1671 &res_info
[BNA_TX_RES_INTR_T_TXCMPL
].res_u
.intr_info
;
1672 struct bna_tx_config
*tx_config
= &bnad
->tx_config
[tx_id
];
1673 struct bna_tx_event_cbfn tx_cbfn
;
1675 unsigned long flags
;
1677 /* Initialize the Tx object configuration */
1678 tx_config
->num_txq
= bnad
->num_txq_per_tx
;
1679 tx_config
->txq_depth
= bnad
->txq_depth
;
1680 tx_config
->tx_type
= BNA_TX_T_REGULAR
;
1682 /* Initialize the tx event handlers */
1683 tx_cbfn
.tcb_setup_cbfn
= bnad_cb_tcb_setup
;
1684 tx_cbfn
.tcb_destroy_cbfn
= bnad_cb_tcb_destroy
;
1685 tx_cbfn
.tx_stall_cbfn
= bnad_cb_tx_stall
;
1686 tx_cbfn
.tx_resume_cbfn
= bnad_cb_tx_resume
;
1687 tx_cbfn
.tx_cleanup_cbfn
= bnad_cb_tx_cleanup
;
1689 /* Get BNA's resource requirement for one tx object */
1690 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1691 bna_tx_res_req(bnad
->num_txq_per_tx
,
1692 bnad
->txq_depth
, res_info
);
1693 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1695 /* Fill Unmap Q memory requirements */
1696 BNAD_FILL_UNMAPQ_MEM_REQ(
1697 &res_info
[BNA_TX_RES_MEM_T_UNMAPQ
],
1698 bnad
->num_txq_per_tx
,
1699 BNAD_TX_UNMAPQ_DEPTH
);
1701 /* Allocate resources */
1702 err
= bnad_tx_res_alloc(bnad
, res_info
, tx_id
);
1706 /* Ask BNA to create one Tx object, supplying required resources */
1707 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1708 tx
= bna_tx_create(&bnad
->bna
, bnad
, tx_config
, &tx_cbfn
, res_info
,
1710 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1715 /* Register ISR for the Tx object */
1716 if (intr_info
->intr_type
== BNA_INTR_T_MSIX
) {
1717 err
= bnad_tx_msix_register(bnad
, tx_info
,
1718 tx_id
, bnad
->num_txq_per_tx
);
1723 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1725 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1730 bnad_tx_res_free(bnad
, res_info
);
1734 /* Setup the rx config for bna_rx_create */
1735 /* bnad decides the configuration */
1737 bnad_init_rx_config(struct bnad
*bnad
, struct bna_rx_config
*rx_config
)
1739 rx_config
->rx_type
= BNA_RX_T_REGULAR
;
1740 rx_config
->num_paths
= bnad
->num_rxp_per_rx
;
1742 if (bnad
->num_rxp_per_rx
> 1) {
1743 rx_config
->rss_status
= BNA_STATUS_T_ENABLED
;
1744 rx_config
->rss_config
.hash_type
=
1749 rx_config
->rss_config
.hash_mask
=
1750 bnad
->num_rxp_per_rx
- 1;
1751 get_random_bytes(rx_config
->rss_config
.toeplitz_hash_key
,
1752 sizeof(rx_config
->rss_config
.toeplitz_hash_key
));
1754 rx_config
->rss_status
= BNA_STATUS_T_DISABLED
;
1755 memset(&rx_config
->rss_config
, 0,
1756 sizeof(rx_config
->rss_config
));
1758 rx_config
->rxp_type
= BNA_RXP_SLR
;
1759 rx_config
->q_depth
= bnad
->rxq_depth
;
1761 rx_config
->small_buff_size
= BFI_SMALL_RXBUF_SIZE
;
1763 rx_config
->vlan_strip_status
= BNA_STATUS_T_ENABLED
;
1766 /* Called with mutex_lock(&bnad->conf_mutex) held */
1768 bnad_cleanup_rx(struct bnad
*bnad
, uint rx_id
)
1770 struct bnad_rx_info
*rx_info
= &bnad
->rx_info
[rx_id
];
1771 struct bna_rx_config
*rx_config
= &bnad
->rx_config
[rx_id
];
1772 struct bna_res_info
*res_info
= &bnad
->rx_res_info
[rx_id
].res_info
[0];
1773 unsigned long flags
;
1774 int dim_timer_del
= 0;
1780 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1781 dim_timer_del
= bnad_dim_timer_running(bnad
);
1783 clear_bit(BNAD_RF_DIM_TIMER_RUNNING
, &bnad
->run_flags
);
1784 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1786 del_timer_sync(&bnad
->dim_timer
);
1789 bnad_napi_disable(bnad
, rx_id
);
1791 init_completion(&bnad
->bnad_completions
.rx_comp
);
1792 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1793 bna_rx_disable(rx_info
->rx
, BNA_HARD_CLEANUP
, bnad_cb_rx_disabled
);
1794 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1795 wait_for_completion(&bnad
->bnad_completions
.rx_comp
);
1797 if (rx_info
->rx_ctrl
[0].ccb
->intr_type
== BNA_INTR_T_MSIX
)
1798 bnad_rx_msix_unregister(bnad
, rx_info
, rx_config
->num_paths
);
1800 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1801 bna_rx_destroy(rx_info
->rx
);
1802 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1806 bnad_rx_res_free(bnad
, res_info
);
1809 /* Called with mutex_lock(&bnad->conf_mutex) held */
1811 bnad_setup_rx(struct bnad
*bnad
, uint rx_id
)
1814 struct bnad_rx_info
*rx_info
= &bnad
->rx_info
[rx_id
];
1815 struct bna_res_info
*res_info
= &bnad
->rx_res_info
[rx_id
].res_info
[0];
1816 struct bna_intr_info
*intr_info
=
1817 &res_info
[BNA_RX_RES_T_INTR
].res_u
.intr_info
;
1818 struct bna_rx_config
*rx_config
= &bnad
->rx_config
[rx_id
];
1819 struct bna_rx_event_cbfn rx_cbfn
;
1821 unsigned long flags
;
1823 /* Initialize the Rx object configuration */
1824 bnad_init_rx_config(bnad
, rx_config
);
1826 /* Initialize the Rx event handlers */
1827 rx_cbfn
.rcb_setup_cbfn
= bnad_cb_rcb_setup
;
1828 rx_cbfn
.rcb_destroy_cbfn
= NULL
;
1829 rx_cbfn
.ccb_setup_cbfn
= bnad_cb_ccb_setup
;
1830 rx_cbfn
.ccb_destroy_cbfn
= bnad_cb_ccb_destroy
;
1831 rx_cbfn
.rx_cleanup_cbfn
= bnad_cb_rx_cleanup
;
1832 rx_cbfn
.rx_post_cbfn
= bnad_cb_rx_post
;
1834 /* Get BNA's resource requirement for one Rx object */
1835 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1836 bna_rx_res_req(rx_config
, res_info
);
1837 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1839 /* Fill Unmap Q memory requirements */
1840 BNAD_FILL_UNMAPQ_MEM_REQ(
1841 &res_info
[BNA_RX_RES_MEM_T_UNMAPQ
],
1842 rx_config
->num_paths
+
1843 ((rx_config
->rxp_type
== BNA_RXP_SINGLE
) ? 0 :
1844 rx_config
->num_paths
), BNAD_RX_UNMAPQ_DEPTH
);
1846 /* Allocate resource */
1847 err
= bnad_rx_res_alloc(bnad
, res_info
, rx_id
);
1851 /* Ask BNA to create one Rx object, supplying required resources */
1852 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1853 rx
= bna_rx_create(&bnad
->bna
, bnad
, rx_config
, &rx_cbfn
, res_info
,
1855 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1860 /* Register ISR for the Rx object */
1861 if (intr_info
->intr_type
== BNA_INTR_T_MSIX
) {
1862 err
= bnad_rx_msix_register(bnad
, rx_info
, rx_id
,
1863 rx_config
->num_paths
);
1869 bnad_napi_enable(bnad
, rx_id
);
1871 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1873 /* Set up Dynamic Interrupt Moderation Vector */
1874 if (bnad
->cfg_flags
& BNAD_CF_DIM_ENABLED
)
1875 bna_rx_dim_reconfig(&bnad
->bna
, bna_napi_dim_vector
);
1877 /* Enable VLAN filtering only on the default Rx */
1878 bna_rx_vlanfilter_enable(rx
);
1880 /* Start the DIM timer */
1881 bnad_dim_timer_start(bnad
);
1885 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1890 bnad_cleanup_rx(bnad
, rx_id
);
1894 /* Called with conf_lock & bnad->bna_lock held */
1896 bnad_tx_coalescing_timeo_set(struct bnad
*bnad
)
1898 struct bnad_tx_info
*tx_info
;
1900 tx_info
= &bnad
->tx_info
[0];
1904 bna_tx_coalescing_timeo_set(tx_info
->tx
, bnad
->tx_coalescing_timeo
);
1907 /* Called with conf_lock & bnad->bna_lock held */
1909 bnad_rx_coalescing_timeo_set(struct bnad
*bnad
)
1911 struct bnad_rx_info
*rx_info
;
1914 for (i
= 0; i
< bnad
->num_rx
; i
++) {
1915 rx_info
= &bnad
->rx_info
[i
];
1918 bna_rx_coalescing_timeo_set(rx_info
->rx
,
1919 bnad
->rx_coalescing_timeo
);
1924 * Called with bnad->bna_lock held
1927 bnad_mac_addr_set_locked(struct bnad
*bnad
, u8
*mac_addr
)
1931 if (!is_valid_ether_addr(mac_addr
))
1932 return -EADDRNOTAVAIL
;
1934 /* If datapath is down, pretend everything went through */
1935 if (!bnad
->rx_info
[0].rx
)
1938 ret
= bna_rx_ucast_set(bnad
->rx_info
[0].rx
, mac_addr
, NULL
);
1939 if (ret
!= BNA_CB_SUCCESS
)
1940 return -EADDRNOTAVAIL
;
1945 /* Should be called with conf_lock held */
1947 bnad_enable_default_bcast(struct bnad
*bnad
)
1949 struct bnad_rx_info
*rx_info
= &bnad
->rx_info
[0];
1951 unsigned long flags
;
1953 init_completion(&bnad
->bnad_completions
.mcast_comp
);
1955 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
1956 ret
= bna_rx_mcast_add(rx_info
->rx
, (u8
*)bnad_bcast_addr
,
1957 bnad_cb_rx_mcast_add
);
1958 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
1960 if (ret
== BNA_CB_SUCCESS
)
1961 wait_for_completion(&bnad
->bnad_completions
.mcast_comp
);
1965 if (bnad
->bnad_completions
.mcast_comp_status
!= BNA_CB_SUCCESS
)
1971 /* Statistics utilities */
1973 bnad_netdev_qstats_fill(struct bnad
*bnad
, struct rtnl_link_stats64
*stats
)
1977 for (i
= 0; i
< bnad
->num_rx
; i
++) {
1978 for (j
= 0; j
< bnad
->num_rxp_per_rx
; j
++) {
1979 if (bnad
->rx_info
[i
].rx_ctrl
[j
].ccb
) {
1980 stats
->rx_packets
+= bnad
->rx_info
[i
].
1981 rx_ctrl
[j
].ccb
->rcb
[0]->rxq
->rx_packets
;
1982 stats
->rx_bytes
+= bnad
->rx_info
[i
].
1983 rx_ctrl
[j
].ccb
->rcb
[0]->rxq
->rx_bytes
;
1984 if (bnad
->rx_info
[i
].rx_ctrl
[j
].ccb
->rcb
[1] &&
1985 bnad
->rx_info
[i
].rx_ctrl
[j
].ccb
->
1987 stats
->rx_packets
+=
1988 bnad
->rx_info
[i
].rx_ctrl
[j
].
1989 ccb
->rcb
[1]->rxq
->rx_packets
;
1991 bnad
->rx_info
[i
].rx_ctrl
[j
].
1992 ccb
->rcb
[1]->rxq
->rx_bytes
;
1997 for (i
= 0; i
< bnad
->num_tx
; i
++) {
1998 for (j
= 0; j
< bnad
->num_txq_per_tx
; j
++) {
1999 if (bnad
->tx_info
[i
].tcb
[j
]) {
2000 stats
->tx_packets
+=
2001 bnad
->tx_info
[i
].tcb
[j
]->txq
->tx_packets
;
2003 bnad
->tx_info
[i
].tcb
[j
]->txq
->tx_bytes
;
2010 * Must be called with the bna_lock held.
2013 bnad_netdev_hwstats_fill(struct bnad
*bnad
, struct rtnl_link_stats64
*stats
)
2015 struct bfi_ll_stats_mac
*mac_stats
;
2019 mac_stats
= &bnad
->stats
.bna_stats
->hw_stats
->mac_stats
;
2021 mac_stats
->rx_fcs_error
+ mac_stats
->rx_alignment_error
+
2022 mac_stats
->rx_frame_length_error
+ mac_stats
->rx_code_error
+
2023 mac_stats
->rx_undersize
;
2024 stats
->tx_errors
= mac_stats
->tx_fcs_error
+
2025 mac_stats
->tx_undersize
;
2026 stats
->rx_dropped
= mac_stats
->rx_drop
;
2027 stats
->tx_dropped
= mac_stats
->tx_drop
;
2028 stats
->multicast
= mac_stats
->rx_multicast
;
2029 stats
->collisions
= mac_stats
->tx_total_collision
;
2031 stats
->rx_length_errors
= mac_stats
->rx_frame_length_error
;
2033 /* receive ring buffer overflow ?? */
2035 stats
->rx_crc_errors
= mac_stats
->rx_fcs_error
;
2036 stats
->rx_frame_errors
= mac_stats
->rx_alignment_error
;
2037 /* recv'r fifo overrun */
2038 bmap
= (u64
)bnad
->stats
.bna_stats
->rxf_bmap
[0] |
2039 ((u64
)bnad
->stats
.bna_stats
->rxf_bmap
[1] << 32);
2040 for (i
= 0; bmap
&& (i
< BFI_LL_RXF_ID_MAX
); i
++) {
2042 stats
->rx_fifo_errors
+=
2043 bnad
->stats
.bna_stats
->
2044 hw_stats
->rxf_stats
[i
].frame_drops
;
2052 bnad_mbox_irq_sync(struct bnad
*bnad
)
2055 unsigned long flags
;
2057 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2058 if (bnad
->cfg_flags
& BNAD_CF_MSIX
)
2059 irq
= bnad
->msix_table
[bnad
->msix_num
- 1].vector
;
2061 irq
= bnad
->pcidev
->irq
;
2062 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2064 synchronize_irq(irq
);
2067 /* Utility used by bnad_start_xmit, for doing TSO */
2069 bnad_tso_prepare(struct bnad
*bnad
, struct sk_buff
*skb
)
2073 /* SKB_GSO_TCPV4 and SKB_GSO_TCPV6 is defined since 2.6.18. */
2074 BUG_ON(!(skb_shinfo(skb
)->gso_type
== SKB_GSO_TCPV4
||
2075 skb_shinfo(skb
)->gso_type
== SKB_GSO_TCPV6
));
2076 if (skb_header_cloned(skb
)) {
2077 err
= pskb_expand_head(skb
, 0, 0, GFP_ATOMIC
);
2079 BNAD_UPDATE_CTR(bnad
, tso_err
);
2085 * For TSO, the TCP checksum field is seeded with pseudo-header sum
2086 * excluding the length field.
2088 if (skb
->protocol
== htons(ETH_P_IP
)) {
2089 struct iphdr
*iph
= ip_hdr(skb
);
2091 /* Do we really need these? */
2095 tcp_hdr(skb
)->check
=
2096 ~csum_tcpudp_magic(iph
->saddr
, iph
->daddr
, 0,
2098 BNAD_UPDATE_CTR(bnad
, tso4
);
2100 struct ipv6hdr
*ipv6h
= ipv6_hdr(skb
);
2102 BUG_ON(!(skb
->protocol
== htons(ETH_P_IPV6
)));
2103 ipv6h
->payload_len
= 0;
2104 tcp_hdr(skb
)->check
=
2105 ~csum_ipv6_magic(&ipv6h
->saddr
, &ipv6h
->daddr
, 0,
2107 BNAD_UPDATE_CTR(bnad
, tso6
);
2114 * Initialize Q numbers depending on Rx Paths
2115 * Called with bnad->bna_lock held, because of cfg_flags
2119 bnad_q_num_init(struct bnad
*bnad
)
2123 rxps
= min((uint
)num_online_cpus(),
2124 (uint
)(BNAD_MAX_RXS
* BNAD_MAX_RXPS_PER_RX
));
2126 if (!(bnad
->cfg_flags
& BNAD_CF_MSIX
))
2127 rxps
= 1; /* INTx */
2131 bnad
->num_rxp_per_rx
= rxps
;
2132 bnad
->num_txq_per_tx
= BNAD_TXQ_NUM
;
2136 * Adjusts the Q numbers, given a number of msix vectors
2137 * Give preference to RSS as opposed to Tx priority Queues,
2138 * in such a case, just use 1 Tx Q
2139 * Called with bnad->bna_lock held b'cos of cfg_flags access
2142 bnad_q_num_adjust(struct bnad
*bnad
, int msix_vectors
)
2144 bnad
->num_txq_per_tx
= 1;
2145 if ((msix_vectors
>= (bnad
->num_tx
* bnad
->num_txq_per_tx
) +
2146 bnad_rxqs_per_cq
+ BNAD_MAILBOX_MSIX_VECTORS
) &&
2147 (bnad
->cfg_flags
& BNAD_CF_MSIX
)) {
2148 bnad
->num_rxp_per_rx
= msix_vectors
-
2149 (bnad
->num_tx
* bnad
->num_txq_per_tx
) -
2150 BNAD_MAILBOX_MSIX_VECTORS
;
2152 bnad
->num_rxp_per_rx
= 1;
2156 bnad_set_netdev_perm_addr(struct bnad
*bnad
)
2158 struct net_device
*netdev
= bnad
->netdev
;
2160 memcpy(netdev
->perm_addr
, &bnad
->perm_addr
, netdev
->addr_len
);
2161 if (is_zero_ether_addr(netdev
->dev_addr
))
2162 memcpy(netdev
->dev_addr
, &bnad
->perm_addr
, netdev
->addr_len
);
2165 /* Enable / disable device */
2167 bnad_device_disable(struct bnad
*bnad
)
2169 unsigned long flags
;
2171 init_completion(&bnad
->bnad_completions
.ioc_comp
);
2173 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2174 bna_device_disable(&bnad
->bna
.device
, BNA_HARD_CLEANUP
);
2175 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2177 wait_for_completion(&bnad
->bnad_completions
.ioc_comp
);
2181 bnad_device_enable(struct bnad
*bnad
)
2184 unsigned long flags
;
2186 init_completion(&bnad
->bnad_completions
.ioc_comp
);
2188 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2189 bna_device_enable(&bnad
->bna
.device
);
2190 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2192 wait_for_completion(&bnad
->bnad_completions
.ioc_comp
);
2194 if (bnad
->bnad_completions
.ioc_comp_status
)
2195 err
= bnad
->bnad_completions
.ioc_comp_status
;
2200 /* Free BNA resources */
2202 bnad_res_free(struct bnad
*bnad
)
2205 struct bna_res_info
*res_info
= &bnad
->res_info
[0];
2207 for (i
= 0; i
< BNA_RES_T_MAX
; i
++) {
2208 if (res_info
[i
].res_type
== BNA_RES_T_MEM
)
2209 bnad_mem_free(bnad
, &res_info
[i
].res_u
.mem_info
);
2211 bnad_mbox_irq_free(bnad
, &res_info
[i
].res_u
.intr_info
);
2215 /* Allocates memory and interrupt resources for BNA */
2217 bnad_res_alloc(struct bnad
*bnad
)
2220 struct bna_res_info
*res_info
= &bnad
->res_info
[0];
2222 for (i
= 0; i
< BNA_RES_T_MAX
; i
++) {
2223 if (res_info
[i
].res_type
== BNA_RES_T_MEM
)
2224 err
= bnad_mem_alloc(bnad
, &res_info
[i
].res_u
.mem_info
);
2226 err
= bnad_mbox_irq_alloc(bnad
,
2227 &res_info
[i
].res_u
.intr_info
);
2234 bnad_res_free(bnad
);
2238 /* Interrupt enable / disable */
2240 bnad_enable_msix(struct bnad
*bnad
)
2243 unsigned long flags
;
2245 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2246 if (!(bnad
->cfg_flags
& BNAD_CF_MSIX
)) {
2247 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2250 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2252 if (bnad
->msix_table
)
2256 kcalloc(bnad
->msix_num
, sizeof(struct msix_entry
), GFP_KERNEL
);
2258 if (!bnad
->msix_table
)
2261 for (i
= 0; i
< bnad
->msix_num
; i
++)
2262 bnad
->msix_table
[i
].entry
= i
;
2264 ret
= pci_enable_msix(bnad
->pcidev
, bnad
->msix_table
, bnad
->msix_num
);
2266 /* Not enough MSI-X vectors. */
2268 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2269 /* ret = #of vectors that we got */
2270 bnad_q_num_adjust(bnad
, ret
);
2271 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2273 bnad
->msix_num
= (bnad
->num_tx
* bnad
->num_txq_per_tx
)
2275 * bnad
->num_rxp_per_rx
) +
2276 BNAD_MAILBOX_MSIX_VECTORS
;
2278 /* Try once more with adjusted numbers */
2279 /* If this fails, fall back to INTx */
2280 ret
= pci_enable_msix(bnad
->pcidev
, bnad
->msix_table
,
2291 kfree(bnad
->msix_table
);
2292 bnad
->msix_table
= NULL
;
2294 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2295 bnad
->cfg_flags
&= ~BNAD_CF_MSIX
;
2296 bnad_q_num_init(bnad
);
2297 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2301 bnad_disable_msix(struct bnad
*bnad
)
2304 unsigned long flags
;
2306 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2307 cfg_flags
= bnad
->cfg_flags
;
2308 if (bnad
->cfg_flags
& BNAD_CF_MSIX
)
2309 bnad
->cfg_flags
&= ~BNAD_CF_MSIX
;
2310 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2312 if (cfg_flags
& BNAD_CF_MSIX
) {
2313 pci_disable_msix(bnad
->pcidev
);
2314 kfree(bnad
->msix_table
);
2315 bnad
->msix_table
= NULL
;
2319 /* Netdev entry points */
2321 bnad_open(struct net_device
*netdev
)
2324 struct bnad
*bnad
= netdev_priv(netdev
);
2325 struct bna_pause_config pause_config
;
2327 unsigned long flags
;
2329 mutex_lock(&bnad
->conf_mutex
);
2332 err
= bnad_setup_tx(bnad
, 0);
2337 err
= bnad_setup_rx(bnad
, 0);
2342 pause_config
.tx_pause
= 0;
2343 pause_config
.rx_pause
= 0;
2345 mtu
= ETH_HLEN
+ bnad
->netdev
->mtu
+ ETH_FCS_LEN
;
2347 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2348 bna_port_mtu_set(&bnad
->bna
.port
, mtu
, NULL
);
2349 bna_port_pause_config(&bnad
->bna
.port
, &pause_config
, NULL
);
2350 bna_port_enable(&bnad
->bna
.port
);
2351 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2353 /* Enable broadcast */
2354 bnad_enable_default_bcast(bnad
);
2356 /* Set the UCAST address */
2357 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2358 bnad_mac_addr_set_locked(bnad
, netdev
->dev_addr
);
2359 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2361 /* Start the stats timer */
2362 bnad_stats_timer_start(bnad
);
2364 mutex_unlock(&bnad
->conf_mutex
);
2369 bnad_cleanup_tx(bnad
, 0);
2372 mutex_unlock(&bnad
->conf_mutex
);
2377 bnad_stop(struct net_device
*netdev
)
2379 struct bnad
*bnad
= netdev_priv(netdev
);
2380 unsigned long flags
;
2382 mutex_lock(&bnad
->conf_mutex
);
2384 /* Stop the stats timer */
2385 bnad_stats_timer_stop(bnad
);
2387 init_completion(&bnad
->bnad_completions
.port_comp
);
2389 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2390 bna_port_disable(&bnad
->bna
.port
, BNA_HARD_CLEANUP
,
2391 bnad_cb_port_disabled
);
2392 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2394 wait_for_completion(&bnad
->bnad_completions
.port_comp
);
2396 bnad_cleanup_tx(bnad
, 0);
2397 bnad_cleanup_rx(bnad
, 0);
2399 /* Synchronize mailbox IRQ */
2400 bnad_mbox_irq_sync(bnad
);
2402 mutex_unlock(&bnad
->conf_mutex
);
2409 * bnad_start_xmit : Netdev entry point for Transmit
2410 * Called under lock held by net_device
2413 bnad_start_xmit(struct sk_buff
*skb
, struct net_device
*netdev
)
2415 struct bnad
*bnad
= netdev_priv(netdev
);
2417 u16 txq_prod
, vlan_tag
= 0;
2418 u32 unmap_prod
, wis
, wis_used
, wi_range
;
2419 u32 vectors
, vect_id
, i
, acked
;
2423 struct bnad_tx_info
*tx_info
;
2424 struct bna_tcb
*tcb
;
2425 struct bnad_unmap_q
*unmap_q
;
2426 dma_addr_t dma_addr
;
2427 struct bna_txq_entry
*txqent
;
2428 bna_txq_wi_ctrl_flag_t flags
;
2431 (skb
->len
<= ETH_HLEN
|| skb
->len
> BFI_TX_MAX_DATA_PER_PKT
)) {
2433 return NETDEV_TX_OK
;
2437 * Takes care of the Tx that is scheduled between clearing the flag
2438 * and the netif_stop_queue() call.
2440 if (unlikely(!test_bit(BNAD_RF_TX_STARTED
, &bnad
->run_flags
))) {
2442 return NETDEV_TX_OK
;
2447 tx_info
= &bnad
->tx_info
[tx_id
];
2448 tcb
= tx_info
->tcb
[tx_id
];
2449 unmap_q
= tcb
->unmap_q
;
2451 vectors
= 1 + skb_shinfo(skb
)->nr_frags
;
2452 if (vectors
> BFI_TX_MAX_VECTORS_PER_PKT
) {
2454 return NETDEV_TX_OK
;
2456 wis
= BNA_TXQ_WI_NEEDED(vectors
); /* 4 vectors per work item */
2459 (wis
> BNA_QE_FREE_CNT(tcb
, tcb
->q_depth
) ||
2460 vectors
> BNA_QE_FREE_CNT(unmap_q
, unmap_q
->q_depth
))) {
2461 if ((u16
) (*tcb
->hw_consumer_index
) !=
2462 tcb
->consumer_index
&&
2463 !test_and_set_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
)) {
2464 acked
= bnad_free_txbufs(bnad
, tcb
);
2465 bna_ib_ack(tcb
->i_dbell
, acked
);
2466 smp_mb__before_clear_bit();
2467 clear_bit(BNAD_TXQ_FREE_SENT
, &tcb
->flags
);
2469 netif_stop_queue(netdev
);
2470 BNAD_UPDATE_CTR(bnad
, netif_queue_stop
);
2475 * Check again to deal with race condition between
2476 * netif_stop_queue here, and netif_wake_queue in
2477 * interrupt handler which is not inside netif tx lock.
2480 (wis
> BNA_QE_FREE_CNT(tcb
, tcb
->q_depth
) ||
2481 vectors
> BNA_QE_FREE_CNT(unmap_q
, unmap_q
->q_depth
))) {
2482 BNAD_UPDATE_CTR(bnad
, netif_queue_stop
);
2483 return NETDEV_TX_BUSY
;
2485 netif_wake_queue(netdev
);
2486 BNAD_UPDATE_CTR(bnad
, netif_queue_wakeup
);
2490 unmap_prod
= unmap_q
->producer_index
;
2495 txq_prod
= tcb
->producer_index
;
2496 BNA_TXQ_QPGE_PTR_GET(txq_prod
, tcb
->sw_qpt
, txqent
, wi_range
);
2497 BUG_ON(!(wi_range
<= tcb
->q_depth
));
2498 txqent
->hdr
.wi
.reserved
= 0;
2499 txqent
->hdr
.wi
.num_vectors
= vectors
;
2500 txqent
->hdr
.wi
.opcode
=
2501 htons((skb_is_gso(skb
) ? BNA_TXQ_WI_SEND_LSO
:
2504 if (bnad
->vlan_grp
&& vlan_tx_tag_present(skb
)) {
2505 vlan_tag
= (u16
) vlan_tx_tag_get(skb
);
2506 flags
|= (BNA_TXQ_WI_CF_INS_PRIO
| BNA_TXQ_WI_CF_INS_VLAN
);
2508 if (test_bit(BNAD_RF_CEE_RUNNING
, &bnad
->run_flags
)) {
2510 (tcb
->priority
& 0x7) << 13 | (vlan_tag
& 0x1fff);
2511 flags
|= (BNA_TXQ_WI_CF_INS_PRIO
| BNA_TXQ_WI_CF_INS_VLAN
);
2514 txqent
->hdr
.wi
.vlan_tag
= htons(vlan_tag
);
2516 if (skb_is_gso(skb
)) {
2517 err
= bnad_tso_prepare(bnad
, skb
);
2520 return NETDEV_TX_OK
;
2522 txqent
->hdr
.wi
.lso_mss
= htons(skb_is_gso(skb
));
2523 flags
|= (BNA_TXQ_WI_CF_IP_CKSUM
| BNA_TXQ_WI_CF_TCP_CKSUM
);
2524 txqent
->hdr
.wi
.l4_hdr_size_n_offset
=
2525 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2526 (tcp_hdrlen(skb
) >> 2,
2527 skb_transport_offset(skb
)));
2528 } else if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
2531 txqent
->hdr
.wi
.lso_mss
= 0;
2533 if (skb
->protocol
== htons(ETH_P_IP
))
2534 proto
= ip_hdr(skb
)->protocol
;
2535 else if (skb
->protocol
== htons(ETH_P_IPV6
)) {
2536 /* nexthdr may not be TCP immediately. */
2537 proto
= ipv6_hdr(skb
)->nexthdr
;
2539 if (proto
== IPPROTO_TCP
) {
2540 flags
|= BNA_TXQ_WI_CF_TCP_CKSUM
;
2541 txqent
->hdr
.wi
.l4_hdr_size_n_offset
=
2542 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2543 (0, skb_transport_offset(skb
)));
2545 BNAD_UPDATE_CTR(bnad
, tcpcsum_offload
);
2547 BUG_ON(!(skb_headlen(skb
) >=
2548 skb_transport_offset(skb
) + tcp_hdrlen(skb
)));
2550 } else if (proto
== IPPROTO_UDP
) {
2551 flags
|= BNA_TXQ_WI_CF_UDP_CKSUM
;
2552 txqent
->hdr
.wi
.l4_hdr_size_n_offset
=
2553 htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
2554 (0, skb_transport_offset(skb
)));
2556 BNAD_UPDATE_CTR(bnad
, udpcsum_offload
);
2558 BUG_ON(!(skb_headlen(skb
) >=
2559 skb_transport_offset(skb
) +
2560 sizeof(struct udphdr
)));
2562 err
= skb_checksum_help(skb
);
2563 BNAD_UPDATE_CTR(bnad
, csum_help
);
2566 BNAD_UPDATE_CTR(bnad
, csum_help_err
);
2567 return NETDEV_TX_OK
;
2571 txqent
->hdr
.wi
.lso_mss
= 0;
2572 txqent
->hdr
.wi
.l4_hdr_size_n_offset
= 0;
2575 txqent
->hdr
.wi
.flags
= htons(flags
);
2577 txqent
->hdr
.wi
.frame_length
= htonl(skb
->len
);
2579 unmap_q
->unmap_array
[unmap_prod
].skb
= skb
;
2580 BUG_ON(!(skb_headlen(skb
) <= BFI_TX_MAX_DATA_PER_VECTOR
));
2581 txqent
->vector
[vect_id
].length
= htons(skb_headlen(skb
));
2582 dma_addr
= pci_map_single(bnad
->pcidev
, skb
->data
, skb_headlen(skb
),
2584 pci_unmap_addr_set(&unmap_q
->unmap_array
[unmap_prod
], dma_addr
,
2587 BNA_SET_DMA_ADDR(dma_addr
, &txqent
->vector
[vect_id
].host_addr
);
2588 BNA_QE_INDX_ADD(unmap_prod
, 1, unmap_q
->q_depth
);
2590 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
2591 struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[i
];
2592 u32 size
= frag
->size
;
2594 if (++vect_id
== BFI_TX_MAX_VECTORS_PER_WI
) {
2599 BNA_QE_INDX_ADD(txq_prod
, wis_used
,
2602 BNA_TXQ_QPGE_PTR_GET(txq_prod
, tcb
->sw_qpt
,
2604 BUG_ON(!(wi_range
<= tcb
->q_depth
));
2607 txqent
->hdr
.wi_ext
.opcode
= htons(BNA_TXQ_WI_EXTENSION
);
2610 BUG_ON(!(size
<= BFI_TX_MAX_DATA_PER_VECTOR
));
2611 txqent
->vector
[vect_id
].length
= htons(size
);
2613 pci_map_page(bnad
->pcidev
, frag
->page
,
2614 frag
->page_offset
, size
,
2616 pci_unmap_addr_set(&unmap_q
->unmap_array
[unmap_prod
], dma_addr
,
2618 BNA_SET_DMA_ADDR(dma_addr
, &txqent
->vector
[vect_id
].host_addr
);
2619 BNA_QE_INDX_ADD(unmap_prod
, 1, unmap_q
->q_depth
);
2622 unmap_q
->producer_index
= unmap_prod
;
2623 BNA_QE_INDX_ADD(txq_prod
, wis_used
, tcb
->q_depth
);
2624 tcb
->producer_index
= txq_prod
;
2627 bna_txq_prod_indx_doorbell(tcb
);
2629 if ((u16
) (*tcb
->hw_consumer_index
) != tcb
->consumer_index
)
2630 tasklet_schedule(&bnad
->tx_free_tasklet
);
2632 return NETDEV_TX_OK
;
2636 * Used spin_lock to synchronize reading of stats structures, which
2637 * is written by BNA under the same lock.
2639 static struct rtnl_link_stats64
*
2640 bnad_get_stats64(struct net_device
*netdev
, struct rtnl_link_stats64
*stats
)
2642 struct bnad
*bnad
= netdev_priv(netdev
);
2643 unsigned long flags
;
2645 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2647 bnad_netdev_qstats_fill(bnad
, stats
);
2648 bnad_netdev_hwstats_fill(bnad
, stats
);
2650 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2656 bnad_set_rx_mode(struct net_device
*netdev
)
2658 struct bnad
*bnad
= netdev_priv(netdev
);
2659 u32 new_mask
, valid_mask
;
2660 unsigned long flags
;
2662 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2664 new_mask
= valid_mask
= 0;
2666 if (netdev
->flags
& IFF_PROMISC
) {
2667 if (!(bnad
->cfg_flags
& BNAD_CF_PROMISC
)) {
2668 new_mask
= BNAD_RXMODE_PROMISC_DEFAULT
;
2669 valid_mask
= BNAD_RXMODE_PROMISC_DEFAULT
;
2670 bnad
->cfg_flags
|= BNAD_CF_PROMISC
;
2673 if (bnad
->cfg_flags
& BNAD_CF_PROMISC
) {
2674 new_mask
= ~BNAD_RXMODE_PROMISC_DEFAULT
;
2675 valid_mask
= BNAD_RXMODE_PROMISC_DEFAULT
;
2676 bnad
->cfg_flags
&= ~BNAD_CF_PROMISC
;
2680 if (netdev
->flags
& IFF_ALLMULTI
) {
2681 if (!(bnad
->cfg_flags
& BNAD_CF_ALLMULTI
)) {
2682 new_mask
|= BNA_RXMODE_ALLMULTI
;
2683 valid_mask
|= BNA_RXMODE_ALLMULTI
;
2684 bnad
->cfg_flags
|= BNAD_CF_ALLMULTI
;
2687 if (bnad
->cfg_flags
& BNAD_CF_ALLMULTI
) {
2688 new_mask
&= ~BNA_RXMODE_ALLMULTI
;
2689 valid_mask
|= BNA_RXMODE_ALLMULTI
;
2690 bnad
->cfg_flags
&= ~BNAD_CF_ALLMULTI
;
2694 bna_rx_mode_set(bnad
->rx_info
[0].rx
, new_mask
, valid_mask
, NULL
);
2696 if (!netdev_mc_empty(netdev
)) {
2698 int mc_count
= netdev_mc_count(netdev
);
2700 /* Index 0 holds the broadcast address */
2702 kzalloc((mc_count
+ 1) * ETH_ALEN
,
2707 memcpy(&mcaddr_list
[0], &bnad_bcast_addr
[0], ETH_ALEN
);
2709 /* Copy rest of the MC addresses */
2710 bnad_netdev_mc_list_get(netdev
, mcaddr_list
);
2712 bna_rx_mcast_listset(bnad
->rx_info
[0].rx
, mc_count
+ 1,
2715 /* Should we enable BNAD_CF_ALLMULTI for err != 0 ? */
2719 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2723 * bna_lock is used to sync writes to netdev->addr
2724 * conf_lock cannot be used since this call may be made
2725 * in a non-blocking context.
2728 bnad_set_mac_address(struct net_device
*netdev
, void *mac_addr
)
2731 struct bnad
*bnad
= netdev_priv(netdev
);
2732 struct sockaddr
*sa
= (struct sockaddr
*)mac_addr
;
2733 unsigned long flags
;
2735 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2737 err
= bnad_mac_addr_set_locked(bnad
, sa
->sa_data
);
2740 memcpy(netdev
->dev_addr
, sa
->sa_data
, netdev
->addr_len
);
2742 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2748 bnad_change_mtu(struct net_device
*netdev
, int new_mtu
)
2751 unsigned long flags
;
2753 struct bnad
*bnad
= netdev_priv(netdev
);
2755 if (new_mtu
+ ETH_HLEN
< ETH_ZLEN
|| new_mtu
> BNAD_JUMBO_MTU
)
2758 mutex_lock(&bnad
->conf_mutex
);
2760 netdev
->mtu
= new_mtu
;
2762 mtu
= ETH_HLEN
+ new_mtu
+ ETH_FCS_LEN
;
2764 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2765 bna_port_mtu_set(&bnad
->bna
.port
, mtu
, NULL
);
2766 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2768 mutex_unlock(&bnad
->conf_mutex
);
2773 bnad_vlan_rx_register(struct net_device
*netdev
,
2774 struct vlan_group
*vlan_grp
)
2776 struct bnad
*bnad
= netdev_priv(netdev
);
2778 mutex_lock(&bnad
->conf_mutex
);
2779 bnad
->vlan_grp
= vlan_grp
;
2780 mutex_unlock(&bnad
->conf_mutex
);
2784 bnad_vlan_rx_add_vid(struct net_device
*netdev
,
2787 struct bnad
*bnad
= netdev_priv(netdev
);
2788 unsigned long flags
;
2790 if (!bnad
->rx_info
[0].rx
)
2793 mutex_lock(&bnad
->conf_mutex
);
2795 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2796 bna_rx_vlan_add(bnad
->rx_info
[0].rx
, vid
);
2797 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2799 mutex_unlock(&bnad
->conf_mutex
);
2803 bnad_vlan_rx_kill_vid(struct net_device
*netdev
,
2806 struct bnad
*bnad
= netdev_priv(netdev
);
2807 unsigned long flags
;
2809 if (!bnad
->rx_info
[0].rx
)
2812 mutex_lock(&bnad
->conf_mutex
);
2814 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2815 bna_rx_vlan_del(bnad
->rx_info
[0].rx
, vid
);
2816 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2818 mutex_unlock(&bnad
->conf_mutex
);
2821 #ifdef CONFIG_NET_POLL_CONTROLLER
2823 bnad_netpoll(struct net_device
*netdev
)
2825 struct bnad
*bnad
= netdev_priv(netdev
);
2826 struct bnad_rx_info
*rx_info
;
2827 struct bnad_rx_ctrl
*rx_ctrl
;
2831 if (!(bnad
->cfg_flags
& BNAD_CF_MSIX
)) {
2832 bna_intx_disable(&bnad
->bna
, curr_mask
);
2833 bnad_isr(bnad
->pcidev
->irq
, netdev
);
2834 bna_intx_enable(&bnad
->bna
, curr_mask
);
2836 for (i
= 0; i
< bnad
->num_rx
; i
++) {
2837 rx_info
= &bnad
->rx_info
[i
];
2840 for (j
= 0; j
< bnad
->num_rxp_per_rx
; j
++) {
2841 rx_ctrl
= &rx_info
->rx_ctrl
[j
];
2843 bnad_disable_rx_irq(bnad
,
2845 bnad_netif_rx_schedule_poll(bnad
,
2854 static const struct net_device_ops bnad_netdev_ops
= {
2855 .ndo_open
= bnad_open
,
2856 .ndo_stop
= bnad_stop
,
2857 .ndo_start_xmit
= bnad_start_xmit
,
2858 .ndo_get_stats64
= bnad_get_stats64
,
2859 .ndo_set_rx_mode
= bnad_set_rx_mode
,
2860 .ndo_set_multicast_list
= bnad_set_rx_mode
,
2861 .ndo_validate_addr
= eth_validate_addr
,
2862 .ndo_set_mac_address
= bnad_set_mac_address
,
2863 .ndo_change_mtu
= bnad_change_mtu
,
2864 .ndo_vlan_rx_register
= bnad_vlan_rx_register
,
2865 .ndo_vlan_rx_add_vid
= bnad_vlan_rx_add_vid
,
2866 .ndo_vlan_rx_kill_vid
= bnad_vlan_rx_kill_vid
,
2867 #ifdef CONFIG_NET_POLL_CONTROLLER
2868 .ndo_poll_controller
= bnad_netpoll
2873 bnad_netdev_init(struct bnad
*bnad
, bool using_dac
)
2875 struct net_device
*netdev
= bnad
->netdev
;
2877 netdev
->features
|= NETIF_F_IPV6_CSUM
;
2878 netdev
->features
|= NETIF_F_TSO
;
2879 netdev
->features
|= NETIF_F_TSO6
;
2881 netdev
->features
|= NETIF_F_GRO
;
2882 pr_warn("bna: GRO enabled, using kernel stack GRO\n");
2884 netdev
->features
|= NETIF_F_SG
| NETIF_F_IP_CSUM
;
2887 netdev
->features
|= NETIF_F_HIGHDMA
;
2890 NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
|
2891 NETIF_F_HW_VLAN_FILTER
;
2893 netdev
->vlan_features
= netdev
->features
;
2894 netdev
->mem_start
= bnad
->mmio_start
;
2895 netdev
->mem_end
= bnad
->mmio_start
+ bnad
->mmio_len
- 1;
2897 netdev
->netdev_ops
= &bnad_netdev_ops
;
2898 bnad_set_ethtool_ops(netdev
);
2902 * 1. Initialize the bnad structure
2903 * 2. Setup netdev pointer in pci_dev
2904 * 3. Initialze Tx free tasklet
2905 * 4. Initialize no. of TxQ & CQs & MSIX vectors
2908 bnad_init(struct bnad
*bnad
,
2909 struct pci_dev
*pdev
, struct net_device
*netdev
)
2911 unsigned long flags
;
2913 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
2914 pci_set_drvdata(pdev
, netdev
);
2916 bnad
->netdev
= netdev
;
2917 bnad
->pcidev
= pdev
;
2918 bnad
->mmio_start
= pci_resource_start(pdev
, 0);
2919 bnad
->mmio_len
= pci_resource_len(pdev
, 0);
2920 bnad
->bar0
= ioremap_nocache(bnad
->mmio_start
, bnad
->mmio_len
);
2922 dev_err(&pdev
->dev
, "ioremap for bar0 failed\n");
2923 pci_set_drvdata(pdev
, NULL
);
2926 pr_info("bar0 mapped to %p, len %llu\n", bnad
->bar0
,
2927 (unsigned long long) bnad
->mmio_len
);
2929 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
2930 if (!bnad_msix_disable
)
2931 bnad
->cfg_flags
= BNAD_CF_MSIX
;
2933 bnad
->cfg_flags
|= BNAD_CF_DIM_ENABLED
;
2935 bnad_q_num_init(bnad
);
2936 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
2938 bnad
->msix_num
= (bnad
->num_tx
* bnad
->num_txq_per_tx
) +
2939 (bnad
->num_rx
* bnad
->num_rxp_per_rx
) +
2940 BNAD_MAILBOX_MSIX_VECTORS
;
2942 bnad
->txq_depth
= BNAD_TXQ_DEPTH
;
2943 bnad
->rxq_depth
= BNAD_RXQ_DEPTH
;
2944 bnad
->rx_csum
= true;
2946 bnad
->tx_coalescing_timeo
= BFI_TX_COALESCING_TIMEO
;
2947 bnad
->rx_coalescing_timeo
= BFI_RX_COALESCING_TIMEO
;
2949 tasklet_init(&bnad
->tx_free_tasklet
, bnad_tx_free_tasklet
,
2950 (unsigned long)bnad
);
2956 * Must be called after bnad_pci_uninit()
2957 * so that iounmap() and pci_set_drvdata(NULL)
2958 * happens only after PCI uninitialization.
2961 bnad_uninit(struct bnad
*bnad
)
2964 iounmap(bnad
->bar0
);
2965 pci_set_drvdata(bnad
->pcidev
, NULL
);
2970 a) Per device mutes used for serializing configuration
2971 changes from OS interface
2972 b) spin lock used to protect bna state machine
2975 bnad_lock_init(struct bnad
*bnad
)
2977 spin_lock_init(&bnad
->bna_lock
);
2978 mutex_init(&bnad
->conf_mutex
);
2982 bnad_lock_uninit(struct bnad
*bnad
)
2984 mutex_destroy(&bnad
->conf_mutex
);
2987 /* PCI Initialization */
2989 bnad_pci_init(struct bnad
*bnad
,
2990 struct pci_dev
*pdev
, bool *using_dac
)
2994 err
= pci_enable_device(pdev
);
2997 err
= pci_request_regions(pdev
, BNAD_NAME
);
2999 goto disable_device
;
3000 if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) &&
3001 !pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(64))) {
3004 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
3006 err
= pci_set_consistent_dma_mask(pdev
,
3009 goto release_regions
;
3013 pci_set_master(pdev
);
3017 pci_release_regions(pdev
);
3019 pci_disable_device(pdev
);
3025 bnad_pci_uninit(struct pci_dev
*pdev
)
3027 pci_release_regions(pdev
);
3028 pci_disable_device(pdev
);
3031 static int __devinit
3032 bnad_pci_probe(struct pci_dev
*pdev
,
3033 const struct pci_device_id
*pcidev_id
)
3039 struct net_device
*netdev
;
3040 struct bfa_pcidev pcidev_info
;
3041 unsigned long flags
;
3043 pr_info("bnad_pci_probe : (0x%p, 0x%p) PCI Func : (%d)\n",
3044 pdev
, pcidev_id
, PCI_FUNC(pdev
->devfn
));
3046 mutex_lock(&bnad_fwimg_mutex
);
3047 if (!cna_get_firmware_buf(pdev
)) {
3048 mutex_unlock(&bnad_fwimg_mutex
);
3049 pr_warn("Failed to load Firmware Image!\n");
3052 mutex_unlock(&bnad_fwimg_mutex
);
3055 * Allocates sizeof(struct net_device + struct bnad)
3056 * bnad = netdev->priv
3058 netdev
= alloc_etherdev(sizeof(struct bnad
));
3060 dev_err(&pdev
->dev
, "alloc_etherdev failed\n");
3064 bnad
= netdev_priv(netdev
);
3067 * PCI initialization
3068 * Output : using_dac = 1 for 64 bit DMA
3069 * = 0 for 32 bit DMA
3071 err
= bnad_pci_init(bnad
, pdev
, &using_dac
);
3075 bnad_lock_init(bnad
);
3077 * Initialize bnad structure
3078 * Setup relation between pci_dev & netdev
3079 * Init Tx free tasklet
3081 err
= bnad_init(bnad
, pdev
, netdev
);
3084 /* Initialize netdev structure, set up ethtool ops */
3085 bnad_netdev_init(bnad
, using_dac
);
3087 bnad_enable_msix(bnad
);
3089 /* Get resource requirement form bna */
3090 bna_res_req(&bnad
->res_info
[0]);
3092 /* Allocate resources from bna */
3093 err
= bnad_res_alloc(bnad
);
3099 /* Setup pcidev_info for bna_init() */
3100 pcidev_info
.pci_slot
= PCI_SLOT(bnad
->pcidev
->devfn
);
3101 pcidev_info
.pci_func
= PCI_FUNC(bnad
->pcidev
->devfn
);
3102 pcidev_info
.device_id
= bnad
->pcidev
->device
;
3103 pcidev_info
.pci_bar_kva
= bnad
->bar0
;
3105 mutex_lock(&bnad
->conf_mutex
);
3107 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
3108 bna_init(bna
, bnad
, &pcidev_info
, &bnad
->res_info
[0]);
3109 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
3111 bnad
->stats
.bna_stats
= &bna
->stats
;
3114 setup_timer(&bnad
->bna
.device
.ioc
.ioc_timer
, bnad_ioc_timeout
,
3115 ((unsigned long)bnad
));
3116 setup_timer(&bnad
->bna
.device
.ioc
.hb_timer
, bnad_ioc_hb_check
,
3117 ((unsigned long)bnad
));
3118 setup_timer(&bnad
->bna
.device
.ioc
.sem_timer
, bnad_ioc_sem_timeout
,
3119 ((unsigned long)bnad
));
3121 /* Now start the timer before calling IOC */
3122 mod_timer(&bnad
->bna
.device
.ioc
.ioc_timer
,
3123 jiffies
+ msecs_to_jiffies(BNA_IOC_TIMER_FREQ
));
3127 * Don't care even if err != 0, bna state machine will
3130 err
= bnad_device_enable(bnad
);
3132 /* Get the burnt-in mac */
3133 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
3134 bna_port_mac_get(&bna
->port
, &bnad
->perm_addr
);
3135 bnad_set_netdev_perm_addr(bnad
);
3136 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
3138 mutex_unlock(&bnad
->conf_mutex
);
3141 * Make sure the link appears down to the stack
3143 netif_carrier_off(netdev
);
3145 /* Finally, reguister with net_device layer */
3146 err
= register_netdev(netdev
);
3148 pr_err("BNA : Registering with netdev failed\n");
3149 goto disable_device
;
3155 mutex_lock(&bnad
->conf_mutex
);
3156 bnad_device_disable(bnad
);
3157 del_timer_sync(&bnad
->bna
.device
.ioc
.ioc_timer
);
3158 del_timer_sync(&bnad
->bna
.device
.ioc
.sem_timer
);
3159 del_timer_sync(&bnad
->bna
.device
.ioc
.hb_timer
);
3160 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
3162 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
3163 mutex_unlock(&bnad
->conf_mutex
);
3165 bnad_res_free(bnad
);
3166 bnad_disable_msix(bnad
);
3168 bnad_pci_uninit(pdev
);
3169 bnad_lock_uninit(bnad
);
3172 free_netdev(netdev
);
3176 static void __devexit
3177 bnad_pci_remove(struct pci_dev
*pdev
)
3179 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3182 unsigned long flags
;
3187 pr_info("%s bnad_pci_remove\n", netdev
->name
);
3188 bnad
= netdev_priv(netdev
);
3191 unregister_netdev(netdev
);
3193 mutex_lock(&bnad
->conf_mutex
);
3194 bnad_device_disable(bnad
);
3195 del_timer_sync(&bnad
->bna
.device
.ioc
.ioc_timer
);
3196 del_timer_sync(&bnad
->bna
.device
.ioc
.sem_timer
);
3197 del_timer_sync(&bnad
->bna
.device
.ioc
.hb_timer
);
3198 spin_lock_irqsave(&bnad
->bna_lock
, flags
);
3200 spin_unlock_irqrestore(&bnad
->bna_lock
, flags
);
3201 mutex_unlock(&bnad
->conf_mutex
);
3203 bnad_res_free(bnad
);
3204 bnad_disable_msix(bnad
);
3205 bnad_pci_uninit(pdev
);
3206 bnad_lock_uninit(bnad
);
3208 free_netdev(netdev
);
3211 static const struct pci_device_id bnad_pci_id_table
[] = {
3213 PCI_DEVICE(PCI_VENDOR_ID_BROCADE
,
3214 PCI_DEVICE_ID_BROCADE_CT
),
3215 .class = PCI_CLASS_NETWORK_ETHERNET
<< 8,
3216 .class_mask
= 0xffff00
3220 MODULE_DEVICE_TABLE(pci
, bnad_pci_id_table
);
3222 static struct pci_driver bnad_pci_driver
= {
3224 .id_table
= bnad_pci_id_table
,
3225 .probe
= bnad_pci_probe
,
3226 .remove
= __devexit_p(bnad_pci_remove
),
3230 bnad_module_init(void)
3234 pr_info("Brocade 10G Ethernet driver\n");
3236 bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover
);
3238 err
= pci_register_driver(&bnad_pci_driver
);
3240 pr_err("bna : PCI registration failed in module init "
3249 bnad_module_exit(void)
3251 pci_unregister_driver(&bnad_pci_driver
);
3254 release_firmware(bfi_fw
);
3257 module_init(bnad_module_init
);
3258 module_exit(bnad_module_exit
);
3260 MODULE_AUTHOR("Brocade");
3261 MODULE_LICENSE("GPL");
3262 MODULE_DESCRIPTION("Brocade 10G PCIe Ethernet driver");
3263 MODULE_VERSION(BNAD_VERSION
);
3264 MODULE_FIRMWARE(CNA_FW_FILE_CT
);