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8b230ed8 RM |
1 | /* |
2 | * Linux network driver for Brocade Converged Network Adapter. | |
3 | * | |
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 | |
7 | * | |
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. | |
12 | */ | |
13 | /* | |
14 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. | |
15 | * All rights reserved | |
16 | * www.brocade.com | |
17 | */ | |
f859d7cb | 18 | #include <linux/bitops.h> |
8b230ed8 RM |
19 | #include <linux/netdevice.h> |
20 | #include <linux/skbuff.h> | |
21 | #include <linux/etherdevice.h> | |
22 | #include <linux/in.h> | |
23 | #include <linux/ethtool.h> | |
24 | #include <linux/if_vlan.h> | |
25 | #include <linux/if_ether.h> | |
26 | #include <linux/ip.h> | |
70c71606 | 27 | #include <linux/prefetch.h> |
8b230ed8 RM |
28 | |
29 | #include "bnad.h" | |
30 | #include "bna.h" | |
31 | #include "cna.h" | |
32 | ||
b7ee31c5 | 33 | static DEFINE_MUTEX(bnad_fwimg_mutex); |
8b230ed8 RM |
34 | |
35 | /* | |
36 | * Module params | |
37 | */ | |
38 | static uint bnad_msix_disable; | |
39 | module_param(bnad_msix_disable, uint, 0444); | |
40 | MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode"); | |
41 | ||
42 | static uint bnad_ioc_auto_recover = 1; | |
43 | module_param(bnad_ioc_auto_recover, uint, 0444); | |
44 | MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery"); | |
45 | ||
46 | /* | |
47 | * Global variables | |
48 | */ | |
49 | u32 bnad_rxqs_per_cq = 2; | |
50 | ||
b7ee31c5 | 51 | static const u8 bnad_bcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
8b230ed8 RM |
52 | |
53 | /* | |
54 | * Local MACROS | |
55 | */ | |
56 | #define BNAD_TX_UNMAPQ_DEPTH (bnad->txq_depth * 2) | |
57 | ||
58 | #define BNAD_RX_UNMAPQ_DEPTH (bnad->rxq_depth) | |
59 | ||
60 | #define BNAD_GET_MBOX_IRQ(_bnad) \ | |
61 | (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \ | |
8811e267 | 62 | ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \ |
8b230ed8 RM |
63 | ((_bnad)->pcidev->irq)) |
64 | ||
65 | #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _depth) \ | |
66 | do { \ | |
67 | (_res_info)->res_type = BNA_RES_T_MEM; \ | |
68 | (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \ | |
69 | (_res_info)->res_u.mem_info.num = (_num); \ | |
70 | (_res_info)->res_u.mem_info.len = \ | |
71 | sizeof(struct bnad_unmap_q) + \ | |
72 | (sizeof(struct bnad_skb_unmap) * ((_depth) - 1)); \ | |
73 | } while (0) | |
74 | ||
be7fa326 RM |
75 | #define BNAD_TXRX_SYNC_MDELAY 250 /* 250 msecs */ |
76 | ||
8b230ed8 RM |
77 | /* |
78 | * Reinitialize completions in CQ, once Rx is taken down | |
79 | */ | |
80 | static void | |
81 | bnad_cq_cmpl_init(struct bnad *bnad, struct bna_ccb *ccb) | |
82 | { | |
83 | struct bna_cq_entry *cmpl, *next_cmpl; | |
84 | unsigned int wi_range, wis = 0, ccb_prod = 0; | |
85 | int i; | |
86 | ||
87 | BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt, cmpl, | |
88 | wi_range); | |
89 | ||
90 | for (i = 0; i < ccb->q_depth; i++) { | |
91 | wis++; | |
92 | if (likely(--wi_range)) | |
93 | next_cmpl = cmpl + 1; | |
94 | else { | |
95 | BNA_QE_INDX_ADD(ccb_prod, wis, ccb->q_depth); | |
96 | wis = 0; | |
97 | BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt, | |
98 | next_cmpl, wi_range); | |
99 | } | |
100 | cmpl->valid = 0; | |
101 | cmpl = next_cmpl; | |
102 | } | |
103 | } | |
104 | ||
271e8b79 RM |
105 | static u32 |
106 | bnad_pci_unmap_skb(struct device *pdev, struct bnad_skb_unmap *array, | |
107 | u32 index, u32 depth, struct sk_buff *skb, u32 frag) | |
108 | { | |
109 | int j; | |
110 | array[index].skb = NULL; | |
111 | ||
112 | dma_unmap_single(pdev, dma_unmap_addr(&array[index], dma_addr), | |
113 | skb_headlen(skb), DMA_TO_DEVICE); | |
114 | dma_unmap_addr_set(&array[index], dma_addr, 0); | |
115 | BNA_QE_INDX_ADD(index, 1, depth); | |
116 | ||
117 | for (j = 0; j < frag; j++) { | |
118 | dma_unmap_page(pdev, dma_unmap_addr(&array[index], dma_addr), | |
119 | skb_shinfo(skb)->frags[j].size, DMA_TO_DEVICE); | |
120 | dma_unmap_addr_set(&array[index], dma_addr, 0); | |
121 | BNA_QE_INDX_ADD(index, 1, depth); | |
122 | } | |
123 | ||
124 | return index; | |
125 | } | |
126 | ||
8b230ed8 RM |
127 | /* |
128 | * Frees all pending Tx Bufs | |
129 | * At this point no activity is expected on the Q, | |
130 | * so DMA unmap & freeing is fine. | |
131 | */ | |
132 | static void | |
133 | bnad_free_all_txbufs(struct bnad *bnad, | |
134 | struct bna_tcb *tcb) | |
135 | { | |
0120b99c | 136 | u32 unmap_cons; |
8b230ed8 RM |
137 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
138 | struct bnad_skb_unmap *unmap_array; | |
0120b99c | 139 | struct sk_buff *skb = NULL; |
938fa488 | 140 | int q; |
8b230ed8 RM |
141 | |
142 | unmap_array = unmap_q->unmap_array; | |
143 | ||
938fa488 RM |
144 | for (q = 0; q < unmap_q->q_depth; q++) { |
145 | skb = unmap_array[q].skb; | |
146 | if (!skb) | |
8b230ed8 | 147 | continue; |
938fa488 RM |
148 | |
149 | unmap_cons = q; | |
150 | unmap_cons = bnad_pci_unmap_skb(&bnad->pcidev->dev, unmap_array, | |
151 | unmap_cons, unmap_q->q_depth, skb, | |
152 | skb_shinfo(skb)->nr_frags); | |
153 | ||
8b230ed8 RM |
154 | dev_kfree_skb_any(skb); |
155 | } | |
156 | } | |
157 | ||
158 | /* Data Path Handlers */ | |
159 | ||
160 | /* | |
161 | * bnad_free_txbufs : Frees the Tx bufs on Tx completion | |
162 | * Can be called in a) Interrupt context | |
163 | * b) Sending context | |
164 | * c) Tasklet context | |
165 | */ | |
166 | static u32 | |
167 | bnad_free_txbufs(struct bnad *bnad, | |
168 | struct bna_tcb *tcb) | |
169 | { | |
271e8b79 RM |
170 | u32 unmap_cons, sent_packets = 0, sent_bytes = 0; |
171 | u16 wis, updated_hw_cons; | |
8b230ed8 RM |
172 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
173 | struct bnad_skb_unmap *unmap_array; | |
0120b99c | 174 | struct sk_buff *skb; |
8b230ed8 RM |
175 | |
176 | /* | |
177 | * Just return if TX is stopped. This check is useful | |
178 | * when bnad_free_txbufs() runs out of a tasklet scheduled | |
be7fa326 | 179 | * before bnad_cb_tx_cleanup() cleared BNAD_TXQ_TX_STARTED bit |
8b230ed8 RM |
180 | * but this routine runs actually after the cleanup has been |
181 | * executed. | |
182 | */ | |
be7fa326 | 183 | if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
8b230ed8 RM |
184 | return 0; |
185 | ||
186 | updated_hw_cons = *(tcb->hw_consumer_index); | |
187 | ||
188 | wis = BNA_Q_INDEX_CHANGE(tcb->consumer_index, | |
189 | updated_hw_cons, tcb->q_depth); | |
190 | ||
191 | BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth))); | |
192 | ||
193 | unmap_array = unmap_q->unmap_array; | |
194 | unmap_cons = unmap_q->consumer_index; | |
195 | ||
196 | prefetch(&unmap_array[unmap_cons + 1]); | |
197 | while (wis) { | |
198 | skb = unmap_array[unmap_cons].skb; | |
199 | ||
8b230ed8 RM |
200 | sent_packets++; |
201 | sent_bytes += skb->len; | |
202 | wis -= BNA_TXQ_WI_NEEDED(1 + skb_shinfo(skb)->nr_frags); | |
203 | ||
271e8b79 RM |
204 | unmap_cons = bnad_pci_unmap_skb(&bnad->pcidev->dev, unmap_array, |
205 | unmap_cons, unmap_q->q_depth, skb, | |
206 | skb_shinfo(skb)->nr_frags); | |
8b230ed8 | 207 | |
8b230ed8 RM |
208 | dev_kfree_skb_any(skb); |
209 | } | |
210 | ||
211 | /* Update consumer pointers. */ | |
212 | tcb->consumer_index = updated_hw_cons; | |
213 | unmap_q->consumer_index = unmap_cons; | |
214 | ||
215 | tcb->txq->tx_packets += sent_packets; | |
216 | tcb->txq->tx_bytes += sent_bytes; | |
217 | ||
218 | return sent_packets; | |
219 | } | |
220 | ||
221 | /* Tx Free Tasklet function */ | |
222 | /* Frees for all the tcb's in all the Tx's */ | |
223 | /* | |
224 | * Scheduled from sending context, so that | |
225 | * the fat Tx lock is not held for too long | |
226 | * in the sending context. | |
227 | */ | |
228 | static void | |
229 | bnad_tx_free_tasklet(unsigned long bnad_ptr) | |
230 | { | |
231 | struct bnad *bnad = (struct bnad *)bnad_ptr; | |
232 | struct bna_tcb *tcb; | |
0120b99c | 233 | u32 acked = 0; |
8b230ed8 RM |
234 | int i, j; |
235 | ||
236 | for (i = 0; i < bnad->num_tx; i++) { | |
237 | for (j = 0; j < bnad->num_txq_per_tx; j++) { | |
238 | tcb = bnad->tx_info[i].tcb[j]; | |
239 | if (!tcb) | |
240 | continue; | |
241 | if (((u16) (*tcb->hw_consumer_index) != | |
242 | tcb->consumer_index) && | |
243 | (!test_and_set_bit(BNAD_TXQ_FREE_SENT, | |
244 | &tcb->flags))) { | |
245 | acked = bnad_free_txbufs(bnad, tcb); | |
be7fa326 RM |
246 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, |
247 | &tcb->flags))) | |
248 | bna_ib_ack(tcb->i_dbell, acked); | |
8b230ed8 RM |
249 | smp_mb__before_clear_bit(); |
250 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
251 | } | |
f7c0fa4c RM |
252 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, |
253 | &tcb->flags))) | |
254 | continue; | |
255 | if (netif_queue_stopped(bnad->netdev)) { | |
256 | if (acked && netif_carrier_ok(bnad->netdev) && | |
257 | BNA_QE_FREE_CNT(tcb, tcb->q_depth) >= | |
258 | BNAD_NETIF_WAKE_THRESHOLD) { | |
259 | netif_wake_queue(bnad->netdev); | |
260 | /* TODO */ | |
261 | /* Counters for individual TxQs? */ | |
262 | BNAD_UPDATE_CTR(bnad, | |
263 | netif_queue_wakeup); | |
264 | } | |
265 | } | |
8b230ed8 RM |
266 | } |
267 | } | |
268 | } | |
269 | ||
270 | static u32 | |
271 | bnad_tx(struct bnad *bnad, struct bna_tcb *tcb) | |
272 | { | |
273 | struct net_device *netdev = bnad->netdev; | |
be7fa326 | 274 | u32 sent = 0; |
8b230ed8 RM |
275 | |
276 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) | |
277 | return 0; | |
278 | ||
279 | sent = bnad_free_txbufs(bnad, tcb); | |
280 | if (sent) { | |
281 | if (netif_queue_stopped(netdev) && | |
282 | netif_carrier_ok(netdev) && | |
283 | BNA_QE_FREE_CNT(tcb, tcb->q_depth) >= | |
284 | BNAD_NETIF_WAKE_THRESHOLD) { | |
be7fa326 RM |
285 | if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) { |
286 | netif_wake_queue(netdev); | |
287 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); | |
288 | } | |
8b230ed8 | 289 | } |
be7fa326 RM |
290 | } |
291 | ||
292 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) | |
8b230ed8 | 293 | bna_ib_ack(tcb->i_dbell, sent); |
8b230ed8 RM |
294 | |
295 | smp_mb__before_clear_bit(); | |
296 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
297 | ||
298 | return sent; | |
299 | } | |
300 | ||
301 | /* MSIX Tx Completion Handler */ | |
302 | static irqreturn_t | |
303 | bnad_msix_tx(int irq, void *data) | |
304 | { | |
305 | struct bna_tcb *tcb = (struct bna_tcb *)data; | |
306 | struct bnad *bnad = tcb->bnad; | |
307 | ||
308 | bnad_tx(bnad, tcb); | |
309 | ||
310 | return IRQ_HANDLED; | |
311 | } | |
312 | ||
313 | static void | |
314 | bnad_reset_rcb(struct bnad *bnad, struct bna_rcb *rcb) | |
315 | { | |
316 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
317 | ||
318 | rcb->producer_index = 0; | |
319 | rcb->consumer_index = 0; | |
320 | ||
321 | unmap_q->producer_index = 0; | |
322 | unmap_q->consumer_index = 0; | |
323 | } | |
324 | ||
325 | static void | |
be7fa326 | 326 | bnad_free_all_rxbufs(struct bnad *bnad, struct bna_rcb *rcb) |
8b230ed8 RM |
327 | { |
328 | struct bnad_unmap_q *unmap_q; | |
5ea74318 | 329 | struct bnad_skb_unmap *unmap_array; |
8b230ed8 | 330 | struct sk_buff *skb; |
be7fa326 | 331 | int unmap_cons; |
8b230ed8 RM |
332 | |
333 | unmap_q = rcb->unmap_q; | |
5ea74318 | 334 | unmap_array = unmap_q->unmap_array; |
be7fa326 | 335 | for (unmap_cons = 0; unmap_cons < unmap_q->q_depth; unmap_cons++) { |
5ea74318 | 336 | skb = unmap_array[unmap_cons].skb; |
be7fa326 RM |
337 | if (!skb) |
338 | continue; | |
5ea74318 IV |
339 | unmap_array[unmap_cons].skb = NULL; |
340 | dma_unmap_single(&bnad->pcidev->dev, | |
341 | dma_unmap_addr(&unmap_array[unmap_cons], | |
342 | dma_addr), | |
343 | rcb->rxq->buffer_size, | |
344 | DMA_FROM_DEVICE); | |
8b230ed8 | 345 | dev_kfree_skb(skb); |
8b230ed8 | 346 | } |
8b230ed8 RM |
347 | bnad_reset_rcb(bnad, rcb); |
348 | } | |
349 | ||
350 | static void | |
351 | bnad_alloc_n_post_rxbufs(struct bnad *bnad, struct bna_rcb *rcb) | |
352 | { | |
353 | u16 to_alloc, alloced, unmap_prod, wi_range; | |
354 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
355 | struct bnad_skb_unmap *unmap_array; | |
356 | struct bna_rxq_entry *rxent; | |
357 | struct sk_buff *skb; | |
358 | dma_addr_t dma_addr; | |
359 | ||
360 | alloced = 0; | |
361 | to_alloc = | |
362 | BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth); | |
363 | ||
364 | unmap_array = unmap_q->unmap_array; | |
365 | unmap_prod = unmap_q->producer_index; | |
366 | ||
367 | BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent, wi_range); | |
368 | ||
369 | while (to_alloc--) { | |
19dbff9f | 370 | if (!wi_range) |
8b230ed8 RM |
371 | BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent, |
372 | wi_range); | |
0a0e2344 ED |
373 | skb = netdev_alloc_skb_ip_align(bnad->netdev, |
374 | rcb->rxq->buffer_size); | |
8b230ed8 RM |
375 | if (unlikely(!skb)) { |
376 | BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed); | |
3caa1e95 | 377 | rcb->rxq->rxbuf_alloc_failed++; |
8b230ed8 RM |
378 | goto finishing; |
379 | } | |
8b230ed8 | 380 | unmap_array[unmap_prod].skb = skb; |
5ea74318 IV |
381 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
382 | rcb->rxq->buffer_size, | |
383 | DMA_FROM_DEVICE); | |
384 | dma_unmap_addr_set(&unmap_array[unmap_prod], dma_addr, | |
8b230ed8 RM |
385 | dma_addr); |
386 | BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr); | |
387 | BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth); | |
388 | ||
389 | rxent++; | |
390 | wi_range--; | |
391 | alloced++; | |
392 | } | |
393 | ||
394 | finishing: | |
395 | if (likely(alloced)) { | |
396 | unmap_q->producer_index = unmap_prod; | |
397 | rcb->producer_index = unmap_prod; | |
398 | smp_mb(); | |
5bcf6ac0 | 399 | if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags))) |
be7fa326 | 400 | bna_rxq_prod_indx_doorbell(rcb); |
8b230ed8 | 401 | } |
8b230ed8 RM |
402 | } |
403 | ||
404 | static inline void | |
405 | bnad_refill_rxq(struct bnad *bnad, struct bna_rcb *rcb) | |
406 | { | |
407 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
408 | ||
409 | if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) { | |
410 | if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth) | |
411 | >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT) | |
412 | bnad_alloc_n_post_rxbufs(bnad, rcb); | |
413 | smp_mb__before_clear_bit(); | |
414 | clear_bit(BNAD_RXQ_REFILL, &rcb->flags); | |
415 | } | |
416 | } | |
417 | ||
418 | static u32 | |
419 | bnad_poll_cq(struct bnad *bnad, struct bna_ccb *ccb, int budget) | |
420 | { | |
421 | struct bna_cq_entry *cmpl, *next_cmpl; | |
422 | struct bna_rcb *rcb = NULL; | |
423 | unsigned int wi_range, packets = 0, wis = 0; | |
424 | struct bnad_unmap_q *unmap_q; | |
5ea74318 | 425 | struct bnad_skb_unmap *unmap_array; |
8b230ed8 | 426 | struct sk_buff *skb; |
5ea74318 | 427 | u32 flags, unmap_cons; |
8b230ed8 | 428 | struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate; |
078086f3 RM |
429 | struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl); |
430 | ||
431 | set_bit(BNAD_FP_IN_RX_PATH, &rx_ctrl->flags); | |
8b230ed8 | 432 | |
078086f3 RM |
433 | if (!test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)) { |
434 | clear_bit(BNAD_FP_IN_RX_PATH, &rx_ctrl->flags); | |
be7fa326 | 435 | return 0; |
078086f3 | 436 | } |
be7fa326 | 437 | |
8b230ed8 RM |
438 | prefetch(bnad->netdev); |
439 | BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt, cmpl, | |
440 | wi_range); | |
441 | BUG_ON(!(wi_range <= ccb->q_depth)); | |
442 | while (cmpl->valid && packets < budget) { | |
443 | packets++; | |
444 | BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length)); | |
445 | ||
078086f3 | 446 | if (bna_is_small_rxq(cmpl->rxq_id)) |
8b230ed8 | 447 | rcb = ccb->rcb[1]; |
078086f3 RM |
448 | else |
449 | rcb = ccb->rcb[0]; | |
8b230ed8 RM |
450 | |
451 | unmap_q = rcb->unmap_q; | |
5ea74318 IV |
452 | unmap_array = unmap_q->unmap_array; |
453 | unmap_cons = unmap_q->consumer_index; | |
8b230ed8 | 454 | |
5ea74318 | 455 | skb = unmap_array[unmap_cons].skb; |
8b230ed8 | 456 | BUG_ON(!(skb)); |
5ea74318 IV |
457 | unmap_array[unmap_cons].skb = NULL; |
458 | dma_unmap_single(&bnad->pcidev->dev, | |
459 | dma_unmap_addr(&unmap_array[unmap_cons], | |
8b230ed8 | 460 | dma_addr), |
5ea74318 IV |
461 | rcb->rxq->buffer_size, |
462 | DMA_FROM_DEVICE); | |
8b230ed8 RM |
463 | BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth); |
464 | ||
465 | /* Should be more efficient ? Performance ? */ | |
466 | BNA_QE_INDX_ADD(rcb->consumer_index, 1, rcb->q_depth); | |
467 | ||
468 | wis++; | |
469 | if (likely(--wi_range)) | |
470 | next_cmpl = cmpl + 1; | |
471 | else { | |
472 | BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth); | |
473 | wis = 0; | |
474 | BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt, | |
475 | next_cmpl, wi_range); | |
476 | BUG_ON(!(wi_range <= ccb->q_depth)); | |
477 | } | |
478 | prefetch(next_cmpl); | |
479 | ||
480 | flags = ntohl(cmpl->flags); | |
481 | if (unlikely | |
482 | (flags & | |
483 | (BNA_CQ_EF_MAC_ERROR | BNA_CQ_EF_FCS_ERROR | | |
484 | BNA_CQ_EF_TOO_LONG))) { | |
485 | dev_kfree_skb_any(skb); | |
486 | rcb->rxq->rx_packets_with_error++; | |
487 | goto next; | |
488 | } | |
489 | ||
490 | skb_put(skb, ntohs(cmpl->length)); | |
491 | if (likely | |
e5ee20e7 | 492 | ((bnad->netdev->features & NETIF_F_RXCSUM) && |
8b230ed8 RM |
493 | (((flags & BNA_CQ_EF_IPV4) && |
494 | (flags & BNA_CQ_EF_L3_CKSUM_OK)) || | |
495 | (flags & BNA_CQ_EF_IPV6)) && | |
496 | (flags & (BNA_CQ_EF_TCP | BNA_CQ_EF_UDP)) && | |
497 | (flags & BNA_CQ_EF_L4_CKSUM_OK))) | |
498 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
499 | else | |
bc8acf2c | 500 | skb_checksum_none_assert(skb); |
8b230ed8 RM |
501 | |
502 | rcb->rxq->rx_packets++; | |
503 | rcb->rxq->rx_bytes += skb->len; | |
504 | skb->protocol = eth_type_trans(skb, bnad->netdev); | |
505 | ||
f859d7cb JP |
506 | if (flags & BNA_CQ_EF_VLAN) |
507 | __vlan_hwaccel_put_tag(skb, ntohs(cmpl->vlan_tag)); | |
508 | ||
078086f3 | 509 | if (skb->ip_summed == CHECKSUM_UNNECESSARY) |
f859d7cb | 510 | napi_gro_receive(&rx_ctrl->napi, skb); |
078086f3 | 511 | else { |
f859d7cb | 512 | netif_receive_skb(skb); |
8b230ed8 RM |
513 | } |
514 | ||
515 | next: | |
516 | cmpl->valid = 0; | |
517 | cmpl = next_cmpl; | |
518 | } | |
519 | ||
520 | BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth); | |
521 | ||
2be67144 | 522 | if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))) |
271e8b79 RM |
523 | bna_ib_ack_disable_irq(ccb->i_dbell, packets); |
524 | ||
2be67144 RM |
525 | bnad_refill_rxq(bnad, ccb->rcb[0]); |
526 | if (ccb->rcb[1]) | |
527 | bnad_refill_rxq(bnad, ccb->rcb[1]); | |
8b230ed8 | 528 | |
078086f3 RM |
529 | clear_bit(BNAD_FP_IN_RX_PATH, &rx_ctrl->flags); |
530 | ||
8b230ed8 RM |
531 | return packets; |
532 | } | |
533 | ||
8b230ed8 RM |
534 | static void |
535 | bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb) | |
536 | { | |
537 | struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl); | |
be7fa326 RM |
538 | struct napi_struct *napi = &rx_ctrl->napi; |
539 | ||
540 | if (likely(napi_schedule_prep(napi))) { | |
be7fa326 | 541 | __napi_schedule(napi); |
271e8b79 | 542 | rx_ctrl->rx_schedule++; |
8b230ed8 | 543 | } |
8b230ed8 RM |
544 | } |
545 | ||
546 | /* MSIX Rx Path Handler */ | |
547 | static irqreturn_t | |
548 | bnad_msix_rx(int irq, void *data) | |
549 | { | |
550 | struct bna_ccb *ccb = (struct bna_ccb *)data; | |
8b230ed8 | 551 | |
271e8b79 RM |
552 | if (ccb) { |
553 | ((struct bnad_rx_ctrl *)(ccb->ctrl))->rx_intr_ctr++; | |
2be67144 | 554 | bnad_netif_rx_schedule_poll(ccb->bnad, ccb); |
271e8b79 | 555 | } |
8b230ed8 RM |
556 | |
557 | return IRQ_HANDLED; | |
558 | } | |
559 | ||
560 | /* Interrupt handlers */ | |
561 | ||
562 | /* Mbox Interrupt Handlers */ | |
563 | static irqreturn_t | |
564 | bnad_msix_mbox_handler(int irq, void *data) | |
565 | { | |
566 | u32 intr_status; | |
e2fa6f2e | 567 | unsigned long flags; |
be7fa326 | 568 | struct bnad *bnad = (struct bnad *)data; |
8b230ed8 | 569 | |
8b230ed8 | 570 | spin_lock_irqsave(&bnad->bna_lock, flags); |
dfee325a RM |
571 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { |
572 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
573 | return IRQ_HANDLED; | |
574 | } | |
8b230ed8 RM |
575 | |
576 | bna_intr_status_get(&bnad->bna, intr_status); | |
577 | ||
078086f3 | 578 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
8b230ed8 RM |
579 | bna_mbox_handler(&bnad->bna, intr_status); |
580 | ||
581 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
582 | ||
8b230ed8 RM |
583 | return IRQ_HANDLED; |
584 | } | |
585 | ||
586 | static irqreturn_t | |
587 | bnad_isr(int irq, void *data) | |
588 | { | |
589 | int i, j; | |
590 | u32 intr_status; | |
591 | unsigned long flags; | |
be7fa326 | 592 | struct bnad *bnad = (struct bnad *)data; |
8b230ed8 RM |
593 | struct bnad_rx_info *rx_info; |
594 | struct bnad_rx_ctrl *rx_ctrl; | |
078086f3 | 595 | struct bna_tcb *tcb = NULL; |
8b230ed8 | 596 | |
dfee325a RM |
597 | spin_lock_irqsave(&bnad->bna_lock, flags); |
598 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { | |
599 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
e2fa6f2e | 600 | return IRQ_NONE; |
dfee325a | 601 | } |
8b230ed8 RM |
602 | |
603 | bna_intr_status_get(&bnad->bna, intr_status); | |
e2fa6f2e | 604 | |
dfee325a RM |
605 | if (unlikely(!intr_status)) { |
606 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 | 607 | return IRQ_NONE; |
dfee325a | 608 | } |
8b230ed8 | 609 | |
078086f3 | 610 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
8b230ed8 | 611 | bna_mbox_handler(&bnad->bna, intr_status); |
be7fa326 | 612 | |
8b230ed8 RM |
613 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
614 | ||
be7fa326 RM |
615 | if (!BNA_IS_INTX_DATA_INTR(intr_status)) |
616 | return IRQ_HANDLED; | |
617 | ||
8b230ed8 | 618 | /* Process data interrupts */ |
be7fa326 RM |
619 | /* Tx processing */ |
620 | for (i = 0; i < bnad->num_tx; i++) { | |
078086f3 RM |
621 | for (j = 0; j < bnad->num_txq_per_tx; j++) { |
622 | tcb = bnad->tx_info[i].tcb[j]; | |
623 | if (tcb && test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) | |
624 | bnad_tx(bnad, bnad->tx_info[i].tcb[j]); | |
625 | } | |
be7fa326 RM |
626 | } |
627 | /* Rx processing */ | |
8b230ed8 RM |
628 | for (i = 0; i < bnad->num_rx; i++) { |
629 | rx_info = &bnad->rx_info[i]; | |
630 | if (!rx_info->rx) | |
631 | continue; | |
632 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
633 | rx_ctrl = &rx_info->rx_ctrl[j]; | |
634 | if (rx_ctrl->ccb) | |
635 | bnad_netif_rx_schedule_poll(bnad, | |
636 | rx_ctrl->ccb); | |
637 | } | |
638 | } | |
8b230ed8 RM |
639 | return IRQ_HANDLED; |
640 | } | |
641 | ||
642 | /* | |
643 | * Called in interrupt / callback context | |
644 | * with bna_lock held, so cfg_flags access is OK | |
645 | */ | |
646 | static void | |
647 | bnad_enable_mbox_irq(struct bnad *bnad) | |
648 | { | |
be7fa326 | 649 | clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
e2fa6f2e | 650 | |
8b230ed8 RM |
651 | BNAD_UPDATE_CTR(bnad, mbox_intr_enabled); |
652 | } | |
653 | ||
654 | /* | |
655 | * Called with bnad->bna_lock held b'cos of | |
656 | * bnad->cfg_flags access. | |
657 | */ | |
b7ee31c5 | 658 | static void |
8b230ed8 RM |
659 | bnad_disable_mbox_irq(struct bnad *bnad) |
660 | { | |
be7fa326 | 661 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
8b230ed8 | 662 | |
be7fa326 RM |
663 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
664 | } | |
8b230ed8 | 665 | |
be7fa326 RM |
666 | static void |
667 | bnad_set_netdev_perm_addr(struct bnad *bnad) | |
668 | { | |
669 | struct net_device *netdev = bnad->netdev; | |
e2fa6f2e | 670 | |
be7fa326 RM |
671 | memcpy(netdev->perm_addr, &bnad->perm_addr, netdev->addr_len); |
672 | if (is_zero_ether_addr(netdev->dev_addr)) | |
673 | memcpy(netdev->dev_addr, &bnad->perm_addr, netdev->addr_len); | |
8b230ed8 RM |
674 | } |
675 | ||
676 | /* Control Path Handlers */ | |
677 | ||
678 | /* Callbacks */ | |
679 | void | |
078086f3 | 680 | bnad_cb_mbox_intr_enable(struct bnad *bnad) |
8b230ed8 RM |
681 | { |
682 | bnad_enable_mbox_irq(bnad); | |
683 | } | |
684 | ||
685 | void | |
078086f3 | 686 | bnad_cb_mbox_intr_disable(struct bnad *bnad) |
8b230ed8 RM |
687 | { |
688 | bnad_disable_mbox_irq(bnad); | |
689 | } | |
690 | ||
691 | void | |
078086f3 RM |
692 | bnad_cb_ioceth_ready(struct bnad *bnad) |
693 | { | |
694 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; | |
695 | complete(&bnad->bnad_completions.ioc_comp); | |
696 | } | |
697 | ||
698 | void | |
699 | bnad_cb_ioceth_failed(struct bnad *bnad) | |
8b230ed8 | 700 | { |
078086f3 | 701 | bnad->bnad_completions.ioc_comp_status = BNA_CB_FAIL; |
8b230ed8 | 702 | complete(&bnad->bnad_completions.ioc_comp); |
8b230ed8 RM |
703 | } |
704 | ||
705 | void | |
078086f3 | 706 | bnad_cb_ioceth_disabled(struct bnad *bnad) |
8b230ed8 | 707 | { |
078086f3 | 708 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; |
8b230ed8 | 709 | complete(&bnad->bnad_completions.ioc_comp); |
8b230ed8 RM |
710 | } |
711 | ||
712 | static void | |
078086f3 | 713 | bnad_cb_enet_disabled(void *arg) |
8b230ed8 RM |
714 | { |
715 | struct bnad *bnad = (struct bnad *)arg; | |
716 | ||
8b230ed8 | 717 | netif_carrier_off(bnad->netdev); |
078086f3 | 718 | complete(&bnad->bnad_completions.enet_comp); |
8b230ed8 RM |
719 | } |
720 | ||
721 | void | |
078086f3 | 722 | bnad_cb_ethport_link_status(struct bnad *bnad, |
8b230ed8 RM |
723 | enum bna_link_status link_status) |
724 | { | |
725 | bool link_up = 0; | |
726 | ||
727 | link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP); | |
728 | ||
729 | if (link_status == BNA_CEE_UP) { | |
078086f3 RM |
730 | if (!test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) |
731 | BNAD_UPDATE_CTR(bnad, cee_toggle); | |
8b230ed8 | 732 | set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
078086f3 RM |
733 | } else { |
734 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) | |
735 | BNAD_UPDATE_CTR(bnad, cee_toggle); | |
8b230ed8 | 736 | clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
078086f3 | 737 | } |
8b230ed8 RM |
738 | |
739 | if (link_up) { | |
740 | if (!netif_carrier_ok(bnad->netdev)) { | |
078086f3 RM |
741 | uint tx_id, tcb_id; |
742 | printk(KERN_WARNING "bna: %s link up\n", | |
8b230ed8 RM |
743 | bnad->netdev->name); |
744 | netif_carrier_on(bnad->netdev); | |
745 | BNAD_UPDATE_CTR(bnad, link_toggle); | |
078086f3 RM |
746 | for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) { |
747 | for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx; | |
748 | tcb_id++) { | |
749 | struct bna_tcb *tcb = | |
750 | bnad->tx_info[tx_id].tcb[tcb_id]; | |
751 | u32 txq_id; | |
752 | if (!tcb) | |
753 | continue; | |
754 | ||
755 | txq_id = tcb->id; | |
756 | ||
757 | if (test_bit(BNAD_TXQ_TX_STARTED, | |
758 | &tcb->flags)) { | |
759 | /* | |
760 | * Force an immediate | |
761 | * Transmit Schedule */ | |
762 | printk(KERN_INFO "bna: %s %d " | |
763 | "TXQ_STARTED\n", | |
764 | bnad->netdev->name, | |
765 | txq_id); | |
766 | netif_wake_subqueue( | |
767 | bnad->netdev, | |
768 | txq_id); | |
769 | BNAD_UPDATE_CTR(bnad, | |
770 | netif_queue_wakeup); | |
771 | } else { | |
772 | netif_stop_subqueue( | |
773 | bnad->netdev, | |
774 | txq_id); | |
775 | BNAD_UPDATE_CTR(bnad, | |
776 | netif_queue_stop); | |
777 | } | |
778 | } | |
8b230ed8 RM |
779 | } |
780 | } | |
781 | } else { | |
782 | if (netif_carrier_ok(bnad->netdev)) { | |
078086f3 | 783 | printk(KERN_WARNING "bna: %s link down\n", |
8b230ed8 RM |
784 | bnad->netdev->name); |
785 | netif_carrier_off(bnad->netdev); | |
786 | BNAD_UPDATE_CTR(bnad, link_toggle); | |
787 | } | |
788 | } | |
789 | } | |
790 | ||
791 | static void | |
078086f3 | 792 | bnad_cb_tx_disabled(void *arg, struct bna_tx *tx) |
8b230ed8 RM |
793 | { |
794 | struct bnad *bnad = (struct bnad *)arg; | |
795 | ||
796 | complete(&bnad->bnad_completions.tx_comp); | |
797 | } | |
798 | ||
799 | static void | |
800 | bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb) | |
801 | { | |
802 | struct bnad_tx_info *tx_info = | |
803 | (struct bnad_tx_info *)tcb->txq->tx->priv; | |
804 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; | |
805 | ||
806 | tx_info->tcb[tcb->id] = tcb; | |
807 | unmap_q->producer_index = 0; | |
808 | unmap_q->consumer_index = 0; | |
809 | unmap_q->q_depth = BNAD_TX_UNMAPQ_DEPTH; | |
810 | } | |
811 | ||
812 | static void | |
813 | bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb) | |
814 | { | |
815 | struct bnad_tx_info *tx_info = | |
816 | (struct bnad_tx_info *)tcb->txq->tx->priv; | |
be7fa326 RM |
817 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
818 | ||
819 | while (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) | |
820 | cpu_relax(); | |
821 | ||
822 | bnad_free_all_txbufs(bnad, tcb); | |
823 | ||
824 | unmap_q->producer_index = 0; | |
825 | unmap_q->consumer_index = 0; | |
826 | ||
827 | smp_mb__before_clear_bit(); | |
828 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
8b230ed8 RM |
829 | |
830 | tx_info->tcb[tcb->id] = NULL; | |
831 | } | |
832 | ||
833 | static void | |
834 | bnad_cb_rcb_setup(struct bnad *bnad, struct bna_rcb *rcb) | |
835 | { | |
836 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
837 | ||
838 | unmap_q->producer_index = 0; | |
839 | unmap_q->consumer_index = 0; | |
840 | unmap_q->q_depth = BNAD_RX_UNMAPQ_DEPTH; | |
841 | } | |
842 | ||
be7fa326 RM |
843 | static void |
844 | bnad_cb_rcb_destroy(struct bnad *bnad, struct bna_rcb *rcb) | |
845 | { | |
846 | bnad_free_all_rxbufs(bnad, rcb); | |
847 | } | |
848 | ||
8b230ed8 RM |
849 | static void |
850 | bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb) | |
851 | { | |
852 | struct bnad_rx_info *rx_info = | |
853 | (struct bnad_rx_info *)ccb->cq->rx->priv; | |
854 | ||
855 | rx_info->rx_ctrl[ccb->id].ccb = ccb; | |
856 | ccb->ctrl = &rx_info->rx_ctrl[ccb->id]; | |
857 | } | |
858 | ||
859 | static void | |
860 | bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb) | |
861 | { | |
862 | struct bnad_rx_info *rx_info = | |
863 | (struct bnad_rx_info *)ccb->cq->rx->priv; | |
864 | ||
865 | rx_info->rx_ctrl[ccb->id].ccb = NULL; | |
866 | } | |
867 | ||
868 | static void | |
078086f3 | 869 | bnad_cb_tx_stall(struct bnad *bnad, struct bna_tx *tx) |
8b230ed8 RM |
870 | { |
871 | struct bnad_tx_info *tx_info = | |
078086f3 RM |
872 | (struct bnad_tx_info *)tx->priv; |
873 | struct bna_tcb *tcb; | |
874 | u32 txq_id; | |
875 | int i; | |
8b230ed8 | 876 | |
078086f3 RM |
877 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
878 | tcb = tx_info->tcb[i]; | |
879 | if (!tcb) | |
880 | continue; | |
881 | txq_id = tcb->id; | |
882 | clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); | |
883 | netif_stop_subqueue(bnad->netdev, txq_id); | |
884 | printk(KERN_INFO "bna: %s %d TXQ_STOPPED\n", | |
885 | bnad->netdev->name, txq_id); | |
886 | } | |
8b230ed8 RM |
887 | } |
888 | ||
889 | static void | |
078086f3 | 890 | bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx) |
8b230ed8 | 891 | { |
078086f3 RM |
892 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
893 | struct bna_tcb *tcb; | |
894 | struct bnad_unmap_q *unmap_q; | |
895 | u32 txq_id; | |
896 | int i; | |
8b230ed8 | 897 | |
078086f3 RM |
898 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
899 | tcb = tx_info->tcb[i]; | |
900 | if (!tcb) | |
901 | continue; | |
902 | txq_id = tcb->id; | |
8b230ed8 | 903 | |
078086f3 | 904 | unmap_q = tcb->unmap_q; |
8b230ed8 | 905 | |
078086f3 RM |
906 | if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
907 | continue; | |
8b230ed8 | 908 | |
078086f3 RM |
909 | while (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) |
910 | cpu_relax(); | |
8b230ed8 | 911 | |
078086f3 | 912 | bnad_free_all_txbufs(bnad, tcb); |
8b230ed8 | 913 | |
078086f3 RM |
914 | unmap_q->producer_index = 0; |
915 | unmap_q->consumer_index = 0; | |
916 | ||
917 | smp_mb__before_clear_bit(); | |
918 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
919 | ||
920 | set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); | |
921 | ||
922 | if (netif_carrier_ok(bnad->netdev)) { | |
923 | printk(KERN_INFO "bna: %s %d TXQ_STARTED\n", | |
924 | bnad->netdev->name, txq_id); | |
925 | netif_wake_subqueue(bnad->netdev, txq_id); | |
926 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); | |
927 | } | |
928 | } | |
be7fa326 RM |
929 | |
930 | /* | |
078086f3 | 931 | * Workaround for first ioceth enable failure & we |
be7fa326 RM |
932 | * get a 0 MAC address. We try to get the MAC address |
933 | * again here. | |
934 | */ | |
935 | if (is_zero_ether_addr(&bnad->perm_addr.mac[0])) { | |
078086f3 | 936 | bna_enet_perm_mac_get(&bnad->bna.enet, &bnad->perm_addr); |
be7fa326 RM |
937 | bnad_set_netdev_perm_addr(bnad); |
938 | } | |
be7fa326 RM |
939 | } |
940 | ||
941 | static void | |
078086f3 | 942 | bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx) |
be7fa326 | 943 | { |
078086f3 RM |
944 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
945 | struct bna_tcb *tcb; | |
946 | int i; | |
947 | ||
948 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { | |
949 | tcb = tx_info->tcb[i]; | |
950 | if (!tcb) | |
951 | continue; | |
952 | } | |
953 | ||
954 | mdelay(BNAD_TXRX_SYNC_MDELAY); | |
955 | bna_tx_cleanup_complete(tx); | |
8b230ed8 RM |
956 | } |
957 | ||
5bcf6ac0 RM |
958 | static void |
959 | bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx) | |
960 | { | |
961 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; | |
962 | struct bna_ccb *ccb; | |
963 | struct bnad_rx_ctrl *rx_ctrl; | |
964 | int i; | |
965 | ||
966 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { | |
967 | rx_ctrl = &rx_info->rx_ctrl[i]; | |
968 | ccb = rx_ctrl->ccb; | |
969 | if (!ccb) | |
970 | continue; | |
971 | ||
972 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags); | |
973 | ||
974 | if (ccb->rcb[1]) | |
975 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags); | |
976 | } | |
977 | } | |
978 | ||
8b230ed8 | 979 | static void |
078086f3 | 980 | bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx) |
8b230ed8 | 981 | { |
078086f3 RM |
982 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
983 | struct bna_ccb *ccb; | |
984 | struct bnad_rx_ctrl *rx_ctrl; | |
985 | int i; | |
986 | ||
987 | mdelay(BNAD_TXRX_SYNC_MDELAY); | |
988 | ||
772b5235 | 989 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
078086f3 RM |
990 | rx_ctrl = &rx_info->rx_ctrl[i]; |
991 | ccb = rx_ctrl->ccb; | |
992 | if (!ccb) | |
993 | continue; | |
994 | ||
995 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags); | |
996 | ||
997 | if (ccb->rcb[1]) | |
998 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags); | |
8b230ed8 | 999 | |
078086f3 RM |
1000 | while (test_bit(BNAD_FP_IN_RX_PATH, &rx_ctrl->flags)) |
1001 | cpu_relax(); | |
1002 | } | |
be7fa326 | 1003 | |
078086f3 | 1004 | bna_rx_cleanup_complete(rx); |
8b230ed8 RM |
1005 | } |
1006 | ||
1007 | static void | |
078086f3 | 1008 | bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx) |
8b230ed8 | 1009 | { |
078086f3 RM |
1010 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
1011 | struct bna_ccb *ccb; | |
1012 | struct bna_rcb *rcb; | |
1013 | struct bnad_rx_ctrl *rx_ctrl; | |
1014 | struct bnad_unmap_q *unmap_q; | |
1015 | int i; | |
1016 | int j; | |
be7fa326 | 1017 | |
772b5235 | 1018 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
078086f3 RM |
1019 | rx_ctrl = &rx_info->rx_ctrl[i]; |
1020 | ccb = rx_ctrl->ccb; | |
1021 | if (!ccb) | |
1022 | continue; | |
be7fa326 | 1023 | |
078086f3 | 1024 | bnad_cq_cmpl_init(bnad, ccb); |
8b230ed8 | 1025 | |
078086f3 RM |
1026 | for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) { |
1027 | rcb = ccb->rcb[j]; | |
1028 | if (!rcb) | |
1029 | continue; | |
1030 | bnad_free_all_rxbufs(bnad, rcb); | |
1031 | ||
1032 | set_bit(BNAD_RXQ_STARTED, &rcb->flags); | |
5bcf6ac0 | 1033 | set_bit(BNAD_RXQ_POST_OK, &rcb->flags); |
078086f3 RM |
1034 | unmap_q = rcb->unmap_q; |
1035 | ||
1036 | /* Now allocate & post buffers for this RCB */ | |
1037 | /* !!Allocation in callback context */ | |
1038 | if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) { | |
1039 | if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth) | |
1040 | >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT) | |
1041 | bnad_alloc_n_post_rxbufs(bnad, rcb); | |
1042 | smp_mb__before_clear_bit(); | |
1043 | clear_bit(BNAD_RXQ_REFILL, &rcb->flags); | |
1044 | } | |
1045 | } | |
8b230ed8 RM |
1046 | } |
1047 | } | |
1048 | ||
1049 | static void | |
078086f3 | 1050 | bnad_cb_rx_disabled(void *arg, struct bna_rx *rx) |
8b230ed8 RM |
1051 | { |
1052 | struct bnad *bnad = (struct bnad *)arg; | |
1053 | ||
1054 | complete(&bnad->bnad_completions.rx_comp); | |
1055 | } | |
1056 | ||
1057 | static void | |
078086f3 | 1058 | bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx) |
8b230ed8 | 1059 | { |
078086f3 | 1060 | bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS; |
8b230ed8 RM |
1061 | complete(&bnad->bnad_completions.mcast_comp); |
1062 | } | |
1063 | ||
1064 | void | |
1065 | bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status, | |
1066 | struct bna_stats *stats) | |
1067 | { | |
1068 | if (status == BNA_CB_SUCCESS) | |
1069 | BNAD_UPDATE_CTR(bnad, hw_stats_updates); | |
1070 | ||
1071 | if (!netif_running(bnad->netdev) || | |
1072 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) | |
1073 | return; | |
1074 | ||
1075 | mod_timer(&bnad->stats_timer, | |
1076 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); | |
1077 | } | |
1078 | ||
078086f3 RM |
1079 | static void |
1080 | bnad_cb_enet_mtu_set(struct bnad *bnad) | |
1081 | { | |
1082 | bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS; | |
1083 | complete(&bnad->bnad_completions.mtu_comp); | |
1084 | } | |
1085 | ||
8b230ed8 RM |
1086 | /* Resource allocation, free functions */ |
1087 | ||
1088 | static void | |
1089 | bnad_mem_free(struct bnad *bnad, | |
1090 | struct bna_mem_info *mem_info) | |
1091 | { | |
1092 | int i; | |
1093 | dma_addr_t dma_pa; | |
1094 | ||
1095 | if (mem_info->mdl == NULL) | |
1096 | return; | |
1097 | ||
1098 | for (i = 0; i < mem_info->num; i++) { | |
1099 | if (mem_info->mdl[i].kva != NULL) { | |
1100 | if (mem_info->mem_type == BNA_MEM_T_DMA) { | |
1101 | BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma), | |
1102 | dma_pa); | |
5ea74318 IV |
1103 | dma_free_coherent(&bnad->pcidev->dev, |
1104 | mem_info->mdl[i].len, | |
1105 | mem_info->mdl[i].kva, dma_pa); | |
8b230ed8 RM |
1106 | } else |
1107 | kfree(mem_info->mdl[i].kva); | |
1108 | } | |
1109 | } | |
1110 | kfree(mem_info->mdl); | |
1111 | mem_info->mdl = NULL; | |
1112 | } | |
1113 | ||
1114 | static int | |
1115 | bnad_mem_alloc(struct bnad *bnad, | |
1116 | struct bna_mem_info *mem_info) | |
1117 | { | |
1118 | int i; | |
1119 | dma_addr_t dma_pa; | |
1120 | ||
1121 | if ((mem_info->num == 0) || (mem_info->len == 0)) { | |
1122 | mem_info->mdl = NULL; | |
1123 | return 0; | |
1124 | } | |
1125 | ||
1126 | mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr), | |
1127 | GFP_KERNEL); | |
1128 | if (mem_info->mdl == NULL) | |
1129 | return -ENOMEM; | |
1130 | ||
1131 | if (mem_info->mem_type == BNA_MEM_T_DMA) { | |
1132 | for (i = 0; i < mem_info->num; i++) { | |
1133 | mem_info->mdl[i].len = mem_info->len; | |
1134 | mem_info->mdl[i].kva = | |
5ea74318 IV |
1135 | dma_alloc_coherent(&bnad->pcidev->dev, |
1136 | mem_info->len, &dma_pa, | |
1137 | GFP_KERNEL); | |
8b230ed8 RM |
1138 | |
1139 | if (mem_info->mdl[i].kva == NULL) | |
1140 | goto err_return; | |
1141 | ||
1142 | BNA_SET_DMA_ADDR(dma_pa, | |
1143 | &(mem_info->mdl[i].dma)); | |
1144 | } | |
1145 | } else { | |
1146 | for (i = 0; i < mem_info->num; i++) { | |
1147 | mem_info->mdl[i].len = mem_info->len; | |
1148 | mem_info->mdl[i].kva = kzalloc(mem_info->len, | |
1149 | GFP_KERNEL); | |
1150 | if (mem_info->mdl[i].kva == NULL) | |
1151 | goto err_return; | |
1152 | } | |
1153 | } | |
1154 | ||
1155 | return 0; | |
1156 | ||
1157 | err_return: | |
1158 | bnad_mem_free(bnad, mem_info); | |
1159 | return -ENOMEM; | |
1160 | } | |
1161 | ||
1162 | /* Free IRQ for Mailbox */ | |
1163 | static void | |
078086f3 | 1164 | bnad_mbox_irq_free(struct bnad *bnad) |
8b230ed8 RM |
1165 | { |
1166 | int irq; | |
1167 | unsigned long flags; | |
1168 | ||
8b230ed8 | 1169 | spin_lock_irqsave(&bnad->bna_lock, flags); |
8b230ed8 | 1170 | bnad_disable_mbox_irq(bnad); |
e2fa6f2e | 1171 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
1172 | |
1173 | irq = BNAD_GET_MBOX_IRQ(bnad); | |
be7fa326 | 1174 | free_irq(irq, bnad); |
8b230ed8 RM |
1175 | } |
1176 | ||
1177 | /* | |
1178 | * Allocates IRQ for Mailbox, but keep it disabled | |
1179 | * This will be enabled once we get the mbox enable callback | |
1180 | * from bna | |
1181 | */ | |
1182 | static int | |
078086f3 | 1183 | bnad_mbox_irq_alloc(struct bnad *bnad) |
8b230ed8 | 1184 | { |
0120b99c RM |
1185 | int err = 0; |
1186 | unsigned long irq_flags, flags; | |
8b230ed8 | 1187 | u32 irq; |
0120b99c | 1188 | irq_handler_t irq_handler; |
8b230ed8 | 1189 | |
8b230ed8 RM |
1190 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1191 | if (bnad->cfg_flags & BNAD_CF_MSIX) { | |
1192 | irq_handler = (irq_handler_t)bnad_msix_mbox_handler; | |
8811e267 | 1193 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
8279171a | 1194 | irq_flags = 0; |
8b230ed8 RM |
1195 | } else { |
1196 | irq_handler = (irq_handler_t)bnad_isr; | |
1197 | irq = bnad->pcidev->irq; | |
5f77898d | 1198 | irq_flags = IRQF_SHARED; |
8b230ed8 | 1199 | } |
8811e267 | 1200 | |
8b230ed8 | 1201 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
1202 | sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME); |
1203 | ||
e2fa6f2e RM |
1204 | /* |
1205 | * Set the Mbox IRQ disable flag, so that the IRQ handler | |
1206 | * called from request_irq() for SHARED IRQs do not execute | |
1207 | */ | |
1208 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); | |
1209 | ||
be7fa326 RM |
1210 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
1211 | ||
8279171a | 1212 | err = request_irq(irq, irq_handler, irq_flags, |
be7fa326 | 1213 | bnad->mbox_irq_name, bnad); |
e2fa6f2e | 1214 | |
be7fa326 | 1215 | return err; |
8b230ed8 RM |
1216 | } |
1217 | ||
1218 | static void | |
1219 | bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info) | |
1220 | { | |
1221 | kfree(intr_info->idl); | |
1222 | intr_info->idl = NULL; | |
1223 | } | |
1224 | ||
1225 | /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */ | |
1226 | static int | |
1227 | bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src, | |
078086f3 | 1228 | u32 txrx_id, struct bna_intr_info *intr_info) |
8b230ed8 RM |
1229 | { |
1230 | int i, vector_start = 0; | |
1231 | u32 cfg_flags; | |
1232 | unsigned long flags; | |
1233 | ||
1234 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1235 | cfg_flags = bnad->cfg_flags; | |
1236 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1237 | ||
1238 | if (cfg_flags & BNAD_CF_MSIX) { | |
1239 | intr_info->intr_type = BNA_INTR_T_MSIX; | |
1240 | intr_info->idl = kcalloc(intr_info->num, | |
1241 | sizeof(struct bna_intr_descr), | |
1242 | GFP_KERNEL); | |
1243 | if (!intr_info->idl) | |
1244 | return -ENOMEM; | |
1245 | ||
1246 | switch (src) { | |
1247 | case BNAD_INTR_TX: | |
8811e267 | 1248 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id; |
8b230ed8 RM |
1249 | break; |
1250 | ||
1251 | case BNAD_INTR_RX: | |
8811e267 RM |
1252 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + |
1253 | (bnad->num_tx * bnad->num_txq_per_tx) + | |
8b230ed8 RM |
1254 | txrx_id; |
1255 | break; | |
1256 | ||
1257 | default: | |
1258 | BUG(); | |
1259 | } | |
1260 | ||
1261 | for (i = 0; i < intr_info->num; i++) | |
1262 | intr_info->idl[i].vector = vector_start + i; | |
1263 | } else { | |
1264 | intr_info->intr_type = BNA_INTR_T_INTX; | |
1265 | intr_info->num = 1; | |
1266 | intr_info->idl = kcalloc(intr_info->num, | |
1267 | sizeof(struct bna_intr_descr), | |
1268 | GFP_KERNEL); | |
1269 | if (!intr_info->idl) | |
1270 | return -ENOMEM; | |
1271 | ||
1272 | switch (src) { | |
1273 | case BNAD_INTR_TX: | |
8811e267 | 1274 | intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK; |
8b230ed8 RM |
1275 | break; |
1276 | ||
1277 | case BNAD_INTR_RX: | |
8811e267 | 1278 | intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK; |
8b230ed8 RM |
1279 | break; |
1280 | } | |
1281 | } | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | /** | |
1286 | * NOTE: Should be called for MSIX only | |
1287 | * Unregisters Tx MSIX vector(s) from the kernel | |
1288 | */ | |
1289 | static void | |
1290 | bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info, | |
1291 | int num_txqs) | |
1292 | { | |
1293 | int i; | |
1294 | int vector_num; | |
1295 | ||
1296 | for (i = 0; i < num_txqs; i++) { | |
1297 | if (tx_info->tcb[i] == NULL) | |
1298 | continue; | |
1299 | ||
1300 | vector_num = tx_info->tcb[i]->intr_vector; | |
1301 | free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]); | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | /** | |
1306 | * NOTE: Should be called for MSIX only | |
1307 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel | |
1308 | */ | |
1309 | static int | |
1310 | bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info, | |
078086f3 | 1311 | u32 tx_id, int num_txqs) |
8b230ed8 RM |
1312 | { |
1313 | int i; | |
1314 | int err; | |
1315 | int vector_num; | |
1316 | ||
1317 | for (i = 0; i < num_txqs; i++) { | |
1318 | vector_num = tx_info->tcb[i]->intr_vector; | |
1319 | sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name, | |
1320 | tx_id + tx_info->tcb[i]->id); | |
1321 | err = request_irq(bnad->msix_table[vector_num].vector, | |
1322 | (irq_handler_t)bnad_msix_tx, 0, | |
1323 | tx_info->tcb[i]->name, | |
1324 | tx_info->tcb[i]); | |
1325 | if (err) | |
1326 | goto err_return; | |
1327 | } | |
1328 | ||
1329 | return 0; | |
1330 | ||
1331 | err_return: | |
1332 | if (i > 0) | |
1333 | bnad_tx_msix_unregister(bnad, tx_info, (i - 1)); | |
1334 | return -1; | |
1335 | } | |
1336 | ||
1337 | /** | |
1338 | * NOTE: Should be called for MSIX only | |
1339 | * Unregisters Rx MSIX vector(s) from the kernel | |
1340 | */ | |
1341 | static void | |
1342 | bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info, | |
1343 | int num_rxps) | |
1344 | { | |
1345 | int i; | |
1346 | int vector_num; | |
1347 | ||
1348 | for (i = 0; i < num_rxps; i++) { | |
1349 | if (rx_info->rx_ctrl[i].ccb == NULL) | |
1350 | continue; | |
1351 | ||
1352 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; | |
1353 | free_irq(bnad->msix_table[vector_num].vector, | |
1354 | rx_info->rx_ctrl[i].ccb); | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | /** | |
1359 | * NOTE: Should be called for MSIX only | |
1360 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel | |
1361 | */ | |
1362 | static int | |
1363 | bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info, | |
078086f3 | 1364 | u32 rx_id, int num_rxps) |
8b230ed8 RM |
1365 | { |
1366 | int i; | |
1367 | int err; | |
1368 | int vector_num; | |
1369 | ||
1370 | for (i = 0; i < num_rxps; i++) { | |
1371 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; | |
1372 | sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d", | |
1373 | bnad->netdev->name, | |
1374 | rx_id + rx_info->rx_ctrl[i].ccb->id); | |
1375 | err = request_irq(bnad->msix_table[vector_num].vector, | |
1376 | (irq_handler_t)bnad_msix_rx, 0, | |
1377 | rx_info->rx_ctrl[i].ccb->name, | |
1378 | rx_info->rx_ctrl[i].ccb); | |
1379 | if (err) | |
1380 | goto err_return; | |
1381 | } | |
1382 | ||
1383 | return 0; | |
1384 | ||
1385 | err_return: | |
1386 | if (i > 0) | |
1387 | bnad_rx_msix_unregister(bnad, rx_info, (i - 1)); | |
1388 | return -1; | |
1389 | } | |
1390 | ||
1391 | /* Free Tx object Resources */ | |
1392 | static void | |
1393 | bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info) | |
1394 | { | |
1395 | int i; | |
1396 | ||
1397 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { | |
1398 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1399 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); | |
1400 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1401 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | /* Allocates memory and interrupt resources for Tx object */ | |
1406 | static int | |
1407 | bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, | |
078086f3 | 1408 | u32 tx_id) |
8b230ed8 RM |
1409 | { |
1410 | int i, err = 0; | |
1411 | ||
1412 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { | |
1413 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1414 | err = bnad_mem_alloc(bnad, | |
1415 | &res_info[i].res_u.mem_info); | |
1416 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1417 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id, | |
1418 | &res_info[i].res_u.intr_info); | |
1419 | if (err) | |
1420 | goto err_return; | |
1421 | } | |
1422 | return 0; | |
1423 | ||
1424 | err_return: | |
1425 | bnad_tx_res_free(bnad, res_info); | |
1426 | return err; | |
1427 | } | |
1428 | ||
1429 | /* Free Rx object Resources */ | |
1430 | static void | |
1431 | bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info) | |
1432 | { | |
1433 | int i; | |
1434 | ||
1435 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { | |
1436 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1437 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); | |
1438 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1439 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | /* Allocates memory and interrupt resources for Rx object */ | |
1444 | static int | |
1445 | bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, | |
1446 | uint rx_id) | |
1447 | { | |
1448 | int i, err = 0; | |
1449 | ||
1450 | /* All memory needs to be allocated before setup_ccbs */ | |
1451 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { | |
1452 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1453 | err = bnad_mem_alloc(bnad, | |
1454 | &res_info[i].res_u.mem_info); | |
1455 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1456 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id, | |
1457 | &res_info[i].res_u.intr_info); | |
1458 | if (err) | |
1459 | goto err_return; | |
1460 | } | |
1461 | return 0; | |
1462 | ||
1463 | err_return: | |
1464 | bnad_rx_res_free(bnad, res_info); | |
1465 | return err; | |
1466 | } | |
1467 | ||
1468 | /* Timer callbacks */ | |
1469 | /* a) IOC timer */ | |
1470 | static void | |
1471 | bnad_ioc_timeout(unsigned long data) | |
1472 | { | |
1473 | struct bnad *bnad = (struct bnad *)data; | |
1474 | unsigned long flags; | |
1475 | ||
1476 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1477 | bfa_nw_ioc_timeout((void *) &bnad->bna.ioceth.ioc); |
8b230ed8 RM |
1478 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1479 | } | |
1480 | ||
1481 | static void | |
1482 | bnad_ioc_hb_check(unsigned long data) | |
1483 | { | |
1484 | struct bnad *bnad = (struct bnad *)data; | |
1485 | unsigned long flags; | |
1486 | ||
1487 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1488 | bfa_nw_ioc_hb_check((void *) &bnad->bna.ioceth.ioc); |
8b230ed8 RM |
1489 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1490 | } | |
1491 | ||
1492 | static void | |
1d32f769 | 1493 | bnad_iocpf_timeout(unsigned long data) |
8b230ed8 RM |
1494 | { |
1495 | struct bnad *bnad = (struct bnad *)data; | |
1496 | unsigned long flags; | |
1497 | ||
1498 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1499 | bfa_nw_iocpf_timeout((void *) &bnad->bna.ioceth.ioc); |
1d32f769 RM |
1500 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1501 | } | |
1502 | ||
1503 | static void | |
1504 | bnad_iocpf_sem_timeout(unsigned long data) | |
1505 | { | |
1506 | struct bnad *bnad = (struct bnad *)data; | |
1507 | unsigned long flags; | |
1508 | ||
1509 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1510 | bfa_nw_iocpf_sem_timeout((void *) &bnad->bna.ioceth.ioc); |
8b230ed8 RM |
1511 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1512 | } | |
1513 | ||
1514 | /* | |
1515 | * All timer routines use bnad->bna_lock to protect against | |
1516 | * the following race, which may occur in case of no locking: | |
0120b99c | 1517 | * Time CPU m CPU n |
8b230ed8 RM |
1518 | * 0 1 = test_bit |
1519 | * 1 clear_bit | |
1520 | * 2 del_timer_sync | |
1521 | * 3 mod_timer | |
1522 | */ | |
1523 | ||
1524 | /* b) Dynamic Interrupt Moderation Timer */ | |
1525 | static void | |
1526 | bnad_dim_timeout(unsigned long data) | |
1527 | { | |
1528 | struct bnad *bnad = (struct bnad *)data; | |
1529 | struct bnad_rx_info *rx_info; | |
1530 | struct bnad_rx_ctrl *rx_ctrl; | |
1531 | int i, j; | |
1532 | unsigned long flags; | |
1533 | ||
1534 | if (!netif_carrier_ok(bnad->netdev)) | |
1535 | return; | |
1536 | ||
1537 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1538 | for (i = 0; i < bnad->num_rx; i++) { | |
1539 | rx_info = &bnad->rx_info[i]; | |
1540 | if (!rx_info->rx) | |
1541 | continue; | |
1542 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
1543 | rx_ctrl = &rx_info->rx_ctrl[j]; | |
1544 | if (!rx_ctrl->ccb) | |
1545 | continue; | |
1546 | bna_rx_dim_update(rx_ctrl->ccb); | |
1547 | } | |
1548 | } | |
1549 | ||
1550 | /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */ | |
1551 | if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) | |
1552 | mod_timer(&bnad->dim_timer, | |
1553 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); | |
1554 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1555 | } | |
1556 | ||
1557 | /* c) Statistics Timer */ | |
1558 | static void | |
1559 | bnad_stats_timeout(unsigned long data) | |
1560 | { | |
1561 | struct bnad *bnad = (struct bnad *)data; | |
1562 | unsigned long flags; | |
1563 | ||
1564 | if (!netif_running(bnad->netdev) || | |
1565 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) | |
1566 | return; | |
1567 | ||
1568 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1569 | bna_hw_stats_get(&bnad->bna); |
8b230ed8 RM |
1570 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1571 | } | |
1572 | ||
1573 | /* | |
1574 | * Set up timer for DIM | |
1575 | * Called with bnad->bna_lock held | |
1576 | */ | |
1577 | void | |
1578 | bnad_dim_timer_start(struct bnad *bnad) | |
1579 | { | |
1580 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && | |
1581 | !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { | |
1582 | setup_timer(&bnad->dim_timer, bnad_dim_timeout, | |
1583 | (unsigned long)bnad); | |
1584 | set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); | |
1585 | mod_timer(&bnad->dim_timer, | |
1586 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | /* | |
1591 | * Set up timer for statistics | |
1592 | * Called with mutex_lock(&bnad->conf_mutex) held | |
1593 | */ | |
1594 | static void | |
1595 | bnad_stats_timer_start(struct bnad *bnad) | |
1596 | { | |
1597 | unsigned long flags; | |
1598 | ||
1599 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1600 | if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) { | |
1601 | setup_timer(&bnad->stats_timer, bnad_stats_timeout, | |
1602 | (unsigned long)bnad); | |
1603 | mod_timer(&bnad->stats_timer, | |
1604 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); | |
1605 | } | |
1606 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 RM |
1607 | } |
1608 | ||
1609 | /* | |
1610 | * Stops the stats timer | |
1611 | * Called with mutex_lock(&bnad->conf_mutex) held | |
1612 | */ | |
1613 | static void | |
1614 | bnad_stats_timer_stop(struct bnad *bnad) | |
1615 | { | |
1616 | int to_del = 0; | |
1617 | unsigned long flags; | |
1618 | ||
1619 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1620 | if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) | |
1621 | to_del = 1; | |
1622 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1623 | if (to_del) | |
1624 | del_timer_sync(&bnad->stats_timer); | |
1625 | } | |
1626 | ||
1627 | /* Utilities */ | |
1628 | ||
1629 | static void | |
1630 | bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list) | |
1631 | { | |
1632 | int i = 1; /* Index 0 has broadcast address */ | |
1633 | struct netdev_hw_addr *mc_addr; | |
1634 | ||
1635 | netdev_for_each_mc_addr(mc_addr, netdev) { | |
1636 | memcpy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0], | |
1637 | ETH_ALEN); | |
1638 | i++; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | static int | |
1643 | bnad_napi_poll_rx(struct napi_struct *napi, int budget) | |
1644 | { | |
1645 | struct bnad_rx_ctrl *rx_ctrl = | |
1646 | container_of(napi, struct bnad_rx_ctrl, napi); | |
2be67144 | 1647 | struct bnad *bnad = rx_ctrl->bnad; |
8b230ed8 RM |
1648 | int rcvd = 0; |
1649 | ||
271e8b79 | 1650 | rx_ctrl->rx_poll_ctr++; |
8b230ed8 RM |
1651 | |
1652 | if (!netif_carrier_ok(bnad->netdev)) | |
1653 | goto poll_exit; | |
1654 | ||
2be67144 | 1655 | rcvd = bnad_poll_cq(bnad, rx_ctrl->ccb, budget); |
271e8b79 | 1656 | if (rcvd >= budget) |
8b230ed8 RM |
1657 | return rcvd; |
1658 | ||
1659 | poll_exit: | |
19dbff9f | 1660 | napi_complete(napi); |
8b230ed8 | 1661 | |
271e8b79 | 1662 | rx_ctrl->rx_complete++; |
2be67144 RM |
1663 | |
1664 | if (rx_ctrl->ccb) | |
271e8b79 RM |
1665 | bnad_enable_rx_irq_unsafe(rx_ctrl->ccb); |
1666 | ||
8b230ed8 RM |
1667 | return rcvd; |
1668 | } | |
1669 | ||
2be67144 | 1670 | #define BNAD_NAPI_POLL_QUOTA 64 |
8b230ed8 | 1671 | static void |
2be67144 | 1672 | bnad_napi_init(struct bnad *bnad, u32 rx_id) |
8b230ed8 | 1673 | { |
8b230ed8 RM |
1674 | struct bnad_rx_ctrl *rx_ctrl; |
1675 | int i; | |
8b230ed8 RM |
1676 | |
1677 | /* Initialize & enable NAPI */ | |
1678 | for (i = 0; i < bnad->num_rxp_per_rx; i++) { | |
1679 | rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i]; | |
1680 | netif_napi_add(bnad->netdev, &rx_ctrl->napi, | |
2be67144 RM |
1681 | bnad_napi_poll_rx, BNAD_NAPI_POLL_QUOTA); |
1682 | } | |
1683 | } | |
1684 | ||
1685 | static void | |
1686 | bnad_napi_enable(struct bnad *bnad, u32 rx_id) | |
1687 | { | |
1688 | struct bnad_rx_ctrl *rx_ctrl; | |
1689 | int i; | |
1690 | ||
1691 | /* Initialize & enable NAPI */ | |
1692 | for (i = 0; i < bnad->num_rxp_per_rx; i++) { | |
1693 | rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i]; | |
be7fa326 | 1694 | |
8b230ed8 RM |
1695 | napi_enable(&rx_ctrl->napi); |
1696 | } | |
1697 | } | |
1698 | ||
1699 | static void | |
1700 | bnad_napi_disable(struct bnad *bnad, u32 rx_id) | |
1701 | { | |
1702 | int i; | |
1703 | ||
1704 | /* First disable and then clean up */ | |
1705 | for (i = 0; i < bnad->num_rxp_per_rx; i++) { | |
1706 | napi_disable(&bnad->rx_info[rx_id].rx_ctrl[i].napi); | |
1707 | netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi); | |
1708 | } | |
1709 | } | |
1710 | ||
1711 | /* Should be held with conf_lock held */ | |
1712 | void | |
078086f3 | 1713 | bnad_cleanup_tx(struct bnad *bnad, u32 tx_id) |
8b230ed8 RM |
1714 | { |
1715 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; | |
1716 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; | |
1717 | unsigned long flags; | |
1718 | ||
1719 | if (!tx_info->tx) | |
1720 | return; | |
1721 | ||
1722 | init_completion(&bnad->bnad_completions.tx_comp); | |
1723 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1724 | bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled); | |
1725 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1726 | wait_for_completion(&bnad->bnad_completions.tx_comp); | |
1727 | ||
1728 | if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX) | |
1729 | bnad_tx_msix_unregister(bnad, tx_info, | |
1730 | bnad->num_txq_per_tx); | |
1731 | ||
2be67144 RM |
1732 | if (0 == tx_id) |
1733 | tasklet_kill(&bnad->tx_free_tasklet); | |
1734 | ||
8b230ed8 RM |
1735 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1736 | bna_tx_destroy(tx_info->tx); | |
1737 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1738 | ||
1739 | tx_info->tx = NULL; | |
078086f3 | 1740 | tx_info->tx_id = 0; |
8b230ed8 | 1741 | |
8b230ed8 RM |
1742 | bnad_tx_res_free(bnad, res_info); |
1743 | } | |
1744 | ||
1745 | /* Should be held with conf_lock held */ | |
1746 | int | |
078086f3 | 1747 | bnad_setup_tx(struct bnad *bnad, u32 tx_id) |
8b230ed8 RM |
1748 | { |
1749 | int err; | |
1750 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; | |
1751 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; | |
1752 | struct bna_intr_info *intr_info = | |
1753 | &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; | |
1754 | struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; | |
d91d25d5 | 1755 | static const struct bna_tx_event_cbfn tx_cbfn = { |
1756 | .tcb_setup_cbfn = bnad_cb_tcb_setup, | |
1757 | .tcb_destroy_cbfn = bnad_cb_tcb_destroy, | |
1758 | .tx_stall_cbfn = bnad_cb_tx_stall, | |
1759 | .tx_resume_cbfn = bnad_cb_tx_resume, | |
1760 | .tx_cleanup_cbfn = bnad_cb_tx_cleanup, | |
1761 | }; | |
1762 | ||
8b230ed8 RM |
1763 | struct bna_tx *tx; |
1764 | unsigned long flags; | |
1765 | ||
078086f3 RM |
1766 | tx_info->tx_id = tx_id; |
1767 | ||
8b230ed8 RM |
1768 | /* Initialize the Tx object configuration */ |
1769 | tx_config->num_txq = bnad->num_txq_per_tx; | |
1770 | tx_config->txq_depth = bnad->txq_depth; | |
1771 | tx_config->tx_type = BNA_TX_T_REGULAR; | |
078086f3 | 1772 | tx_config->coalescing_timeo = bnad->tx_coalescing_timeo; |
8b230ed8 | 1773 | |
8b230ed8 RM |
1774 | /* Get BNA's resource requirement for one tx object */ |
1775 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1776 | bna_tx_res_req(bnad->num_txq_per_tx, | |
1777 | bnad->txq_depth, res_info); | |
1778 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1779 | ||
1780 | /* Fill Unmap Q memory requirements */ | |
1781 | BNAD_FILL_UNMAPQ_MEM_REQ( | |
1782 | &res_info[BNA_TX_RES_MEM_T_UNMAPQ], | |
1783 | bnad->num_txq_per_tx, | |
1784 | BNAD_TX_UNMAPQ_DEPTH); | |
1785 | ||
1786 | /* Allocate resources */ | |
1787 | err = bnad_tx_res_alloc(bnad, res_info, tx_id); | |
1788 | if (err) | |
1789 | return err; | |
1790 | ||
1791 | /* Ask BNA to create one Tx object, supplying required resources */ | |
1792 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1793 | tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info, | |
1794 | tx_info); | |
1795 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1796 | if (!tx) | |
1797 | goto err_return; | |
1798 | tx_info->tx = tx; | |
1799 | ||
1800 | /* Register ISR for the Tx object */ | |
1801 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { | |
1802 | err = bnad_tx_msix_register(bnad, tx_info, | |
1803 | tx_id, bnad->num_txq_per_tx); | |
1804 | if (err) | |
1805 | goto err_return; | |
1806 | } | |
1807 | ||
1808 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1809 | bna_tx_enable(tx); | |
1810 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1811 | ||
1812 | return 0; | |
1813 | ||
1814 | err_return: | |
1815 | bnad_tx_res_free(bnad, res_info); | |
1816 | return err; | |
1817 | } | |
1818 | ||
1819 | /* Setup the rx config for bna_rx_create */ | |
1820 | /* bnad decides the configuration */ | |
1821 | static void | |
1822 | bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config) | |
1823 | { | |
1824 | rx_config->rx_type = BNA_RX_T_REGULAR; | |
1825 | rx_config->num_paths = bnad->num_rxp_per_rx; | |
078086f3 | 1826 | rx_config->coalescing_timeo = bnad->rx_coalescing_timeo; |
8b230ed8 RM |
1827 | |
1828 | if (bnad->num_rxp_per_rx > 1) { | |
1829 | rx_config->rss_status = BNA_STATUS_T_ENABLED; | |
1830 | rx_config->rss_config.hash_type = | |
078086f3 RM |
1831 | (BFI_ENET_RSS_IPV6 | |
1832 | BFI_ENET_RSS_IPV6_TCP | | |
1833 | BFI_ENET_RSS_IPV4 | | |
1834 | BFI_ENET_RSS_IPV4_TCP); | |
8b230ed8 RM |
1835 | rx_config->rss_config.hash_mask = |
1836 | bnad->num_rxp_per_rx - 1; | |
1837 | get_random_bytes(rx_config->rss_config.toeplitz_hash_key, | |
1838 | sizeof(rx_config->rss_config.toeplitz_hash_key)); | |
1839 | } else { | |
1840 | rx_config->rss_status = BNA_STATUS_T_DISABLED; | |
1841 | memset(&rx_config->rss_config, 0, | |
1842 | sizeof(rx_config->rss_config)); | |
1843 | } | |
1844 | rx_config->rxp_type = BNA_RXP_SLR; | |
1845 | rx_config->q_depth = bnad->rxq_depth; | |
1846 | ||
1847 | rx_config->small_buff_size = BFI_SMALL_RXBUF_SIZE; | |
1848 | ||
1849 | rx_config->vlan_strip_status = BNA_STATUS_T_ENABLED; | |
1850 | } | |
1851 | ||
2be67144 RM |
1852 | static void |
1853 | bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id) | |
1854 | { | |
1855 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; | |
1856 | int i; | |
1857 | ||
1858 | for (i = 0; i < bnad->num_rxp_per_rx; i++) | |
1859 | rx_info->rx_ctrl[i].bnad = bnad; | |
1860 | } | |
1861 | ||
8b230ed8 RM |
1862 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
1863 | void | |
078086f3 | 1864 | bnad_cleanup_rx(struct bnad *bnad, u32 rx_id) |
8b230ed8 RM |
1865 | { |
1866 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; | |
1867 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; | |
1868 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; | |
1869 | unsigned long flags; | |
271e8b79 | 1870 | int to_del = 0; |
8b230ed8 RM |
1871 | |
1872 | if (!rx_info->rx) | |
1873 | return; | |
1874 | ||
1875 | if (0 == rx_id) { | |
1876 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
271e8b79 RM |
1877 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && |
1878 | test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { | |
8b230ed8 | 1879 | clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); |
271e8b79 RM |
1880 | to_del = 1; |
1881 | } | |
8b230ed8 | 1882 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
271e8b79 | 1883 | if (to_del) |
8b230ed8 RM |
1884 | del_timer_sync(&bnad->dim_timer); |
1885 | } | |
1886 | ||
8b230ed8 RM |
1887 | init_completion(&bnad->bnad_completions.rx_comp); |
1888 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1889 | bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled); | |
1890 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1891 | wait_for_completion(&bnad->bnad_completions.rx_comp); | |
1892 | ||
1893 | if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX) | |
1894 | bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths); | |
1895 | ||
2be67144 RM |
1896 | bnad_napi_disable(bnad, rx_id); |
1897 | ||
8b230ed8 RM |
1898 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1899 | bna_rx_destroy(rx_info->rx); | |
8b230ed8 RM |
1900 | |
1901 | rx_info->rx = NULL; | |
3caa1e95 | 1902 | rx_info->rx_id = 0; |
b9fa1fbf | 1903 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
1904 | |
1905 | bnad_rx_res_free(bnad, res_info); | |
1906 | } | |
1907 | ||
1908 | /* Called with mutex_lock(&bnad->conf_mutex) held */ | |
1909 | int | |
078086f3 | 1910 | bnad_setup_rx(struct bnad *bnad, u32 rx_id) |
8b230ed8 RM |
1911 | { |
1912 | int err; | |
1913 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; | |
1914 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; | |
1915 | struct bna_intr_info *intr_info = | |
1916 | &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; | |
1917 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; | |
d91d25d5 | 1918 | static const struct bna_rx_event_cbfn rx_cbfn = { |
1919 | .rcb_setup_cbfn = bnad_cb_rcb_setup, | |
1920 | .rcb_destroy_cbfn = bnad_cb_rcb_destroy, | |
1921 | .ccb_setup_cbfn = bnad_cb_ccb_setup, | |
1922 | .ccb_destroy_cbfn = bnad_cb_ccb_destroy, | |
5bcf6ac0 | 1923 | .rx_stall_cbfn = bnad_cb_rx_stall, |
d91d25d5 | 1924 | .rx_cleanup_cbfn = bnad_cb_rx_cleanup, |
1925 | .rx_post_cbfn = bnad_cb_rx_post, | |
1926 | }; | |
8b230ed8 RM |
1927 | struct bna_rx *rx; |
1928 | unsigned long flags; | |
1929 | ||
078086f3 RM |
1930 | rx_info->rx_id = rx_id; |
1931 | ||
8b230ed8 RM |
1932 | /* Initialize the Rx object configuration */ |
1933 | bnad_init_rx_config(bnad, rx_config); | |
1934 | ||
8b230ed8 RM |
1935 | /* Get BNA's resource requirement for one Rx object */ |
1936 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1937 | bna_rx_res_req(rx_config, res_info); | |
1938 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1939 | ||
1940 | /* Fill Unmap Q memory requirements */ | |
1941 | BNAD_FILL_UNMAPQ_MEM_REQ( | |
1942 | &res_info[BNA_RX_RES_MEM_T_UNMAPQ], | |
1943 | rx_config->num_paths + | |
1944 | ((rx_config->rxp_type == BNA_RXP_SINGLE) ? 0 : | |
1945 | rx_config->num_paths), BNAD_RX_UNMAPQ_DEPTH); | |
1946 | ||
1947 | /* Allocate resource */ | |
1948 | err = bnad_rx_res_alloc(bnad, res_info, rx_id); | |
1949 | if (err) | |
1950 | return err; | |
1951 | ||
2be67144 RM |
1952 | bnad_rx_ctrl_init(bnad, rx_id); |
1953 | ||
8b230ed8 RM |
1954 | /* Ask BNA to create one Rx object, supplying required resources */ |
1955 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1956 | rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info, | |
1957 | rx_info); | |
3caa1e95 RM |
1958 | if (!rx) { |
1959 | err = -ENOMEM; | |
b9fa1fbf | 1960 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 | 1961 | goto err_return; |
3caa1e95 | 1962 | } |
8b230ed8 | 1963 | rx_info->rx = rx; |
b9fa1fbf | 1964 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 | 1965 | |
2be67144 RM |
1966 | /* |
1967 | * Init NAPI, so that state is set to NAPI_STATE_SCHED, | |
1968 | * so that IRQ handler cannot schedule NAPI at this point. | |
1969 | */ | |
1970 | bnad_napi_init(bnad, rx_id); | |
1971 | ||
8b230ed8 RM |
1972 | /* Register ISR for the Rx object */ |
1973 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { | |
1974 | err = bnad_rx_msix_register(bnad, rx_info, rx_id, | |
1975 | rx_config->num_paths); | |
1976 | if (err) | |
1977 | goto err_return; | |
1978 | } | |
1979 | ||
8b230ed8 RM |
1980 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1981 | if (0 == rx_id) { | |
1982 | /* Set up Dynamic Interrupt Moderation Vector */ | |
1983 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED) | |
1984 | bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector); | |
1985 | ||
1986 | /* Enable VLAN filtering only on the default Rx */ | |
1987 | bna_rx_vlanfilter_enable(rx); | |
1988 | ||
1989 | /* Start the DIM timer */ | |
1990 | bnad_dim_timer_start(bnad); | |
1991 | } | |
1992 | ||
1993 | bna_rx_enable(rx); | |
1994 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1995 | ||
2be67144 RM |
1996 | /* Enable scheduling of NAPI */ |
1997 | bnad_napi_enable(bnad, rx_id); | |
1998 | ||
8b230ed8 RM |
1999 | return 0; |
2000 | ||
2001 | err_return: | |
2002 | bnad_cleanup_rx(bnad, rx_id); | |
2003 | return err; | |
2004 | } | |
2005 | ||
2006 | /* Called with conf_lock & bnad->bna_lock held */ | |
2007 | void | |
2008 | bnad_tx_coalescing_timeo_set(struct bnad *bnad) | |
2009 | { | |
2010 | struct bnad_tx_info *tx_info; | |
2011 | ||
2012 | tx_info = &bnad->tx_info[0]; | |
2013 | if (!tx_info->tx) | |
2014 | return; | |
2015 | ||
2016 | bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo); | |
2017 | } | |
2018 | ||
2019 | /* Called with conf_lock & bnad->bna_lock held */ | |
2020 | void | |
2021 | bnad_rx_coalescing_timeo_set(struct bnad *bnad) | |
2022 | { | |
2023 | struct bnad_rx_info *rx_info; | |
0120b99c | 2024 | int i; |
8b230ed8 RM |
2025 | |
2026 | for (i = 0; i < bnad->num_rx; i++) { | |
2027 | rx_info = &bnad->rx_info[i]; | |
2028 | if (!rx_info->rx) | |
2029 | continue; | |
2030 | bna_rx_coalescing_timeo_set(rx_info->rx, | |
2031 | bnad->rx_coalescing_timeo); | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | /* | |
2036 | * Called with bnad->bna_lock held | |
2037 | */ | |
a2122d95 | 2038 | int |
8b230ed8 RM |
2039 | bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr) |
2040 | { | |
2041 | int ret; | |
2042 | ||
2043 | if (!is_valid_ether_addr(mac_addr)) | |
2044 | return -EADDRNOTAVAIL; | |
2045 | ||
2046 | /* If datapath is down, pretend everything went through */ | |
2047 | if (!bnad->rx_info[0].rx) | |
2048 | return 0; | |
2049 | ||
2050 | ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr, NULL); | |
2051 | if (ret != BNA_CB_SUCCESS) | |
2052 | return -EADDRNOTAVAIL; | |
2053 | ||
2054 | return 0; | |
2055 | } | |
2056 | ||
2057 | /* Should be called with conf_lock held */ | |
a2122d95 | 2058 | int |
8b230ed8 RM |
2059 | bnad_enable_default_bcast(struct bnad *bnad) |
2060 | { | |
2061 | struct bnad_rx_info *rx_info = &bnad->rx_info[0]; | |
2062 | int ret; | |
2063 | unsigned long flags; | |
2064 | ||
2065 | init_completion(&bnad->bnad_completions.mcast_comp); | |
2066 | ||
2067 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2068 | ret = bna_rx_mcast_add(rx_info->rx, (u8 *)bnad_bcast_addr, | |
2069 | bnad_cb_rx_mcast_add); | |
2070 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2071 | ||
2072 | if (ret == BNA_CB_SUCCESS) | |
2073 | wait_for_completion(&bnad->bnad_completions.mcast_comp); | |
2074 | else | |
2075 | return -ENODEV; | |
2076 | ||
2077 | if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS) | |
2078 | return -ENODEV; | |
2079 | ||
2080 | return 0; | |
2081 | } | |
2082 | ||
19dbff9f | 2083 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
a2122d95 | 2084 | void |
aad75b66 RM |
2085 | bnad_restore_vlans(struct bnad *bnad, u32 rx_id) |
2086 | { | |
f859d7cb | 2087 | u16 vid; |
aad75b66 RM |
2088 | unsigned long flags; |
2089 | ||
f859d7cb | 2090 | for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) { |
aad75b66 | 2091 | spin_lock_irqsave(&bnad->bna_lock, flags); |
f859d7cb | 2092 | bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid); |
aad75b66 RM |
2093 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2094 | } | |
2095 | } | |
2096 | ||
8b230ed8 RM |
2097 | /* Statistics utilities */ |
2098 | void | |
250e061e | 2099 | bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
8b230ed8 | 2100 | { |
8b230ed8 RM |
2101 | int i, j; |
2102 | ||
2103 | for (i = 0; i < bnad->num_rx; i++) { | |
2104 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
2105 | if (bnad->rx_info[i].rx_ctrl[j].ccb) { | |
250e061e | 2106 | stats->rx_packets += bnad->rx_info[i]. |
8b230ed8 | 2107 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets; |
250e061e | 2108 | stats->rx_bytes += bnad->rx_info[i]. |
8b230ed8 RM |
2109 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes; |
2110 | if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] && | |
2111 | bnad->rx_info[i].rx_ctrl[j].ccb-> | |
2112 | rcb[1]->rxq) { | |
250e061e | 2113 | stats->rx_packets += |
8b230ed8 RM |
2114 | bnad->rx_info[i].rx_ctrl[j]. |
2115 | ccb->rcb[1]->rxq->rx_packets; | |
250e061e | 2116 | stats->rx_bytes += |
8b230ed8 RM |
2117 | bnad->rx_info[i].rx_ctrl[j]. |
2118 | ccb->rcb[1]->rxq->rx_bytes; | |
2119 | } | |
2120 | } | |
2121 | } | |
2122 | } | |
2123 | for (i = 0; i < bnad->num_tx; i++) { | |
2124 | for (j = 0; j < bnad->num_txq_per_tx; j++) { | |
2125 | if (bnad->tx_info[i].tcb[j]) { | |
250e061e | 2126 | stats->tx_packets += |
8b230ed8 | 2127 | bnad->tx_info[i].tcb[j]->txq->tx_packets; |
250e061e | 2128 | stats->tx_bytes += |
8b230ed8 RM |
2129 | bnad->tx_info[i].tcb[j]->txq->tx_bytes; |
2130 | } | |
2131 | } | |
2132 | } | |
2133 | } | |
2134 | ||
2135 | /* | |
2136 | * Must be called with the bna_lock held. | |
2137 | */ | |
2138 | void | |
250e061e | 2139 | bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
8b230ed8 | 2140 | { |
078086f3 RM |
2141 | struct bfi_enet_stats_mac *mac_stats; |
2142 | u32 bmap; | |
8b230ed8 RM |
2143 | int i; |
2144 | ||
078086f3 | 2145 | mac_stats = &bnad->stats.bna_stats->hw_stats.mac_stats; |
250e061e | 2146 | stats->rx_errors = |
8b230ed8 RM |
2147 | mac_stats->rx_fcs_error + mac_stats->rx_alignment_error + |
2148 | mac_stats->rx_frame_length_error + mac_stats->rx_code_error + | |
2149 | mac_stats->rx_undersize; | |
250e061e | 2150 | stats->tx_errors = mac_stats->tx_fcs_error + |
8b230ed8 | 2151 | mac_stats->tx_undersize; |
250e061e ED |
2152 | stats->rx_dropped = mac_stats->rx_drop; |
2153 | stats->tx_dropped = mac_stats->tx_drop; | |
2154 | stats->multicast = mac_stats->rx_multicast; | |
2155 | stats->collisions = mac_stats->tx_total_collision; | |
8b230ed8 | 2156 | |
250e061e | 2157 | stats->rx_length_errors = mac_stats->rx_frame_length_error; |
8b230ed8 RM |
2158 | |
2159 | /* receive ring buffer overflow ?? */ | |
2160 | ||
250e061e ED |
2161 | stats->rx_crc_errors = mac_stats->rx_fcs_error; |
2162 | stats->rx_frame_errors = mac_stats->rx_alignment_error; | |
8b230ed8 | 2163 | /* recv'r fifo overrun */ |
078086f3 RM |
2164 | bmap = bna_rx_rid_mask(&bnad->bna); |
2165 | for (i = 0; bmap; i++) { | |
8b230ed8 | 2166 | if (bmap & 1) { |
250e061e | 2167 | stats->rx_fifo_errors += |
8b230ed8 | 2168 | bnad->stats.bna_stats-> |
078086f3 | 2169 | hw_stats.rxf_stats[i].frame_drops; |
8b230ed8 RM |
2170 | break; |
2171 | } | |
2172 | bmap >>= 1; | |
2173 | } | |
2174 | } | |
2175 | ||
2176 | static void | |
2177 | bnad_mbox_irq_sync(struct bnad *bnad) | |
2178 | { | |
2179 | u32 irq; | |
2180 | unsigned long flags; | |
2181 | ||
2182 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2183 | if (bnad->cfg_flags & BNAD_CF_MSIX) | |
8811e267 | 2184 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
8b230ed8 RM |
2185 | else |
2186 | irq = bnad->pcidev->irq; | |
2187 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2188 | ||
2189 | synchronize_irq(irq); | |
2190 | } | |
2191 | ||
2192 | /* Utility used by bnad_start_xmit, for doing TSO */ | |
2193 | static int | |
2194 | bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb) | |
2195 | { | |
2196 | int err; | |
2197 | ||
8b230ed8 RM |
2198 | if (skb_header_cloned(skb)) { |
2199 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); | |
2200 | if (err) { | |
2201 | BNAD_UPDATE_CTR(bnad, tso_err); | |
2202 | return err; | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | /* | |
2207 | * For TSO, the TCP checksum field is seeded with pseudo-header sum | |
2208 | * excluding the length field. | |
2209 | */ | |
2210 | if (skb->protocol == htons(ETH_P_IP)) { | |
2211 | struct iphdr *iph = ip_hdr(skb); | |
2212 | ||
2213 | /* Do we really need these? */ | |
2214 | iph->tot_len = 0; | |
2215 | iph->check = 0; | |
2216 | ||
2217 | tcp_hdr(skb)->check = | |
2218 | ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, | |
2219 | IPPROTO_TCP, 0); | |
2220 | BNAD_UPDATE_CTR(bnad, tso4); | |
2221 | } else { | |
2222 | struct ipv6hdr *ipv6h = ipv6_hdr(skb); | |
2223 | ||
8b230ed8 RM |
2224 | ipv6h->payload_len = 0; |
2225 | tcp_hdr(skb)->check = | |
2226 | ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0, | |
2227 | IPPROTO_TCP, 0); | |
2228 | BNAD_UPDATE_CTR(bnad, tso6); | |
2229 | } | |
2230 | ||
2231 | return 0; | |
2232 | } | |
2233 | ||
2234 | /* | |
2235 | * Initialize Q numbers depending on Rx Paths | |
2236 | * Called with bnad->bna_lock held, because of cfg_flags | |
2237 | * access. | |
2238 | */ | |
2239 | static void | |
2240 | bnad_q_num_init(struct bnad *bnad) | |
2241 | { | |
2242 | int rxps; | |
2243 | ||
2244 | rxps = min((uint)num_online_cpus(), | |
772b5235 | 2245 | (uint)(BNAD_MAX_RX * BNAD_MAX_RXP_PER_RX)); |
8b230ed8 RM |
2246 | |
2247 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) | |
2248 | rxps = 1; /* INTx */ | |
2249 | ||
2250 | bnad->num_rx = 1; | |
2251 | bnad->num_tx = 1; | |
2252 | bnad->num_rxp_per_rx = rxps; | |
2253 | bnad->num_txq_per_tx = BNAD_TXQ_NUM; | |
2254 | } | |
2255 | ||
2256 | /* | |
2257 | * Adjusts the Q numbers, given a number of msix vectors | |
2258 | * Give preference to RSS as opposed to Tx priority Queues, | |
2259 | * in such a case, just use 1 Tx Q | |
2260 | * Called with bnad->bna_lock held b'cos of cfg_flags access | |
2261 | */ | |
2262 | static void | |
078086f3 | 2263 | bnad_q_num_adjust(struct bnad *bnad, int msix_vectors, int temp) |
8b230ed8 RM |
2264 | { |
2265 | bnad->num_txq_per_tx = 1; | |
2266 | if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) + | |
2267 | bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) && | |
2268 | (bnad->cfg_flags & BNAD_CF_MSIX)) { | |
2269 | bnad->num_rxp_per_rx = msix_vectors - | |
2270 | (bnad->num_tx * bnad->num_txq_per_tx) - | |
2271 | BNAD_MAILBOX_MSIX_VECTORS; | |
2272 | } else | |
2273 | bnad->num_rxp_per_rx = 1; | |
2274 | } | |
2275 | ||
078086f3 RM |
2276 | /* Enable / disable ioceth */ |
2277 | static int | |
2278 | bnad_ioceth_disable(struct bnad *bnad) | |
8b230ed8 RM |
2279 | { |
2280 | unsigned long flags; | |
078086f3 | 2281 | int err = 0; |
8b230ed8 RM |
2282 | |
2283 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
2284 | init_completion(&bnad->bnad_completions.ioc_comp); |
2285 | bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP); | |
8b230ed8 RM |
2286 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2287 | ||
078086f3 RM |
2288 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
2289 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); | |
2290 | ||
2291 | err = bnad->bnad_completions.ioc_comp_status; | |
2292 | return err; | |
8b230ed8 RM |
2293 | } |
2294 | ||
2295 | static int | |
078086f3 | 2296 | bnad_ioceth_enable(struct bnad *bnad) |
8b230ed8 RM |
2297 | { |
2298 | int err = 0; | |
2299 | unsigned long flags; | |
2300 | ||
8b230ed8 | 2301 | spin_lock_irqsave(&bnad->bna_lock, flags); |
078086f3 RM |
2302 | init_completion(&bnad->bnad_completions.ioc_comp); |
2303 | bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING; | |
2304 | bna_ioceth_enable(&bnad->bna.ioceth); | |
8b230ed8 RM |
2305 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2306 | ||
078086f3 RM |
2307 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
2308 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); | |
8b230ed8 | 2309 | |
078086f3 | 2310 | err = bnad->bnad_completions.ioc_comp_status; |
8b230ed8 RM |
2311 | |
2312 | return err; | |
2313 | } | |
2314 | ||
2315 | /* Free BNA resources */ | |
2316 | static void | |
078086f3 RM |
2317 | bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info, |
2318 | u32 res_val_max) | |
8b230ed8 RM |
2319 | { |
2320 | int i; | |
8b230ed8 | 2321 | |
078086f3 RM |
2322 | for (i = 0; i < res_val_max; i++) |
2323 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); | |
8b230ed8 RM |
2324 | } |
2325 | ||
2326 | /* Allocates memory and interrupt resources for BNA */ | |
2327 | static int | |
078086f3 RM |
2328 | bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
2329 | u32 res_val_max) | |
8b230ed8 RM |
2330 | { |
2331 | int i, err; | |
8b230ed8 | 2332 | |
078086f3 RM |
2333 | for (i = 0; i < res_val_max; i++) { |
2334 | err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info); | |
8b230ed8 RM |
2335 | if (err) |
2336 | goto err_return; | |
2337 | } | |
2338 | return 0; | |
2339 | ||
2340 | err_return: | |
078086f3 | 2341 | bnad_res_free(bnad, res_info, res_val_max); |
8b230ed8 RM |
2342 | return err; |
2343 | } | |
2344 | ||
2345 | /* Interrupt enable / disable */ | |
2346 | static void | |
2347 | bnad_enable_msix(struct bnad *bnad) | |
2348 | { | |
2349 | int i, ret; | |
8b230ed8 RM |
2350 | unsigned long flags; |
2351 | ||
2352 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2353 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { | |
2354 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2355 | return; | |
2356 | } | |
2357 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2358 | ||
2359 | if (bnad->msix_table) | |
2360 | return; | |
2361 | ||
8b230ed8 | 2362 | bnad->msix_table = |
b7ee31c5 | 2363 | kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL); |
8b230ed8 RM |
2364 | |
2365 | if (!bnad->msix_table) | |
2366 | goto intx_mode; | |
2367 | ||
b7ee31c5 | 2368 | for (i = 0; i < bnad->msix_num; i++) |
8b230ed8 RM |
2369 | bnad->msix_table[i].entry = i; |
2370 | ||
b7ee31c5 | 2371 | ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, bnad->msix_num); |
8b230ed8 RM |
2372 | if (ret > 0) { |
2373 | /* Not enough MSI-X vectors. */ | |
19dbff9f RM |
2374 | pr_warn("BNA: %d MSI-X vectors allocated < %d requested\n", |
2375 | ret, bnad->msix_num); | |
8b230ed8 RM |
2376 | |
2377 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2378 | /* ret = #of vectors that we got */ | |
271e8b79 RM |
2379 | bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2, |
2380 | (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2); | |
8b230ed8 RM |
2381 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2382 | ||
271e8b79 | 2383 | bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP + |
8b230ed8 | 2384 | BNAD_MAILBOX_MSIX_VECTORS; |
8b230ed8 | 2385 | |
078086f3 RM |
2386 | if (bnad->msix_num > ret) |
2387 | goto intx_mode; | |
2388 | ||
8b230ed8 RM |
2389 | /* Try once more with adjusted numbers */ |
2390 | /* If this fails, fall back to INTx */ | |
2391 | ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, | |
b7ee31c5 | 2392 | bnad->msix_num); |
8b230ed8 RM |
2393 | if (ret) |
2394 | goto intx_mode; | |
2395 | ||
2396 | } else if (ret < 0) | |
2397 | goto intx_mode; | |
078086f3 RM |
2398 | |
2399 | pci_intx(bnad->pcidev, 0); | |
2400 | ||
8b230ed8 RM |
2401 | return; |
2402 | ||
2403 | intx_mode: | |
19dbff9f | 2404 | pr_warn("BNA: MSI-X enable failed - operating in INTx mode\n"); |
8b230ed8 RM |
2405 | |
2406 | kfree(bnad->msix_table); | |
2407 | bnad->msix_table = NULL; | |
2408 | bnad->msix_num = 0; | |
8b230ed8 RM |
2409 | spin_lock_irqsave(&bnad->bna_lock, flags); |
2410 | bnad->cfg_flags &= ~BNAD_CF_MSIX; | |
2411 | bnad_q_num_init(bnad); | |
2412 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2413 | } | |
2414 | ||
2415 | static void | |
2416 | bnad_disable_msix(struct bnad *bnad) | |
2417 | { | |
2418 | u32 cfg_flags; | |
2419 | unsigned long flags; | |
2420 | ||
2421 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2422 | cfg_flags = bnad->cfg_flags; | |
2423 | if (bnad->cfg_flags & BNAD_CF_MSIX) | |
2424 | bnad->cfg_flags &= ~BNAD_CF_MSIX; | |
2425 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2426 | ||
2427 | if (cfg_flags & BNAD_CF_MSIX) { | |
2428 | pci_disable_msix(bnad->pcidev); | |
2429 | kfree(bnad->msix_table); | |
2430 | bnad->msix_table = NULL; | |
2431 | } | |
2432 | } | |
2433 | ||
2434 | /* Netdev entry points */ | |
2435 | static int | |
2436 | bnad_open(struct net_device *netdev) | |
2437 | { | |
2438 | int err; | |
2439 | struct bnad *bnad = netdev_priv(netdev); | |
2440 | struct bna_pause_config pause_config; | |
2441 | int mtu; | |
2442 | unsigned long flags; | |
2443 | ||
2444 | mutex_lock(&bnad->conf_mutex); | |
2445 | ||
2446 | /* Tx */ | |
2447 | err = bnad_setup_tx(bnad, 0); | |
2448 | if (err) | |
2449 | goto err_return; | |
2450 | ||
2451 | /* Rx */ | |
2452 | err = bnad_setup_rx(bnad, 0); | |
2453 | if (err) | |
2454 | goto cleanup_tx; | |
2455 | ||
2456 | /* Port */ | |
2457 | pause_config.tx_pause = 0; | |
2458 | pause_config.rx_pause = 0; | |
2459 | ||
078086f3 | 2460 | mtu = ETH_HLEN + VLAN_HLEN + bnad->netdev->mtu + ETH_FCS_LEN; |
8b230ed8 RM |
2461 | |
2462 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
2463 | bna_enet_mtu_set(&bnad->bna.enet, mtu, NULL); |
2464 | bna_enet_pause_config(&bnad->bna.enet, &pause_config, NULL); | |
2465 | bna_enet_enable(&bnad->bna.enet); | |
8b230ed8 RM |
2466 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2467 | ||
2468 | /* Enable broadcast */ | |
2469 | bnad_enable_default_bcast(bnad); | |
2470 | ||
aad75b66 RM |
2471 | /* Restore VLANs, if any */ |
2472 | bnad_restore_vlans(bnad, 0); | |
2473 | ||
8b230ed8 RM |
2474 | /* Set the UCAST address */ |
2475 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2476 | bnad_mac_addr_set_locked(bnad, netdev->dev_addr); | |
2477 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2478 | ||
2479 | /* Start the stats timer */ | |
2480 | bnad_stats_timer_start(bnad); | |
2481 | ||
2482 | mutex_unlock(&bnad->conf_mutex); | |
2483 | ||
2484 | return 0; | |
2485 | ||
2486 | cleanup_tx: | |
2487 | bnad_cleanup_tx(bnad, 0); | |
2488 | ||
2489 | err_return: | |
2490 | mutex_unlock(&bnad->conf_mutex); | |
2491 | return err; | |
2492 | } | |
2493 | ||
2494 | static int | |
2495 | bnad_stop(struct net_device *netdev) | |
2496 | { | |
2497 | struct bnad *bnad = netdev_priv(netdev); | |
2498 | unsigned long flags; | |
2499 | ||
2500 | mutex_lock(&bnad->conf_mutex); | |
2501 | ||
2502 | /* Stop the stats timer */ | |
2503 | bnad_stats_timer_stop(bnad); | |
2504 | ||
078086f3 | 2505 | init_completion(&bnad->bnad_completions.enet_comp); |
8b230ed8 RM |
2506 | |
2507 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
2508 | bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP, |
2509 | bnad_cb_enet_disabled); | |
8b230ed8 RM |
2510 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2511 | ||
078086f3 | 2512 | wait_for_completion(&bnad->bnad_completions.enet_comp); |
8b230ed8 RM |
2513 | |
2514 | bnad_cleanup_tx(bnad, 0); | |
2515 | bnad_cleanup_rx(bnad, 0); | |
2516 | ||
2517 | /* Synchronize mailbox IRQ */ | |
2518 | bnad_mbox_irq_sync(bnad); | |
2519 | ||
2520 | mutex_unlock(&bnad->conf_mutex); | |
2521 | ||
2522 | return 0; | |
2523 | } | |
2524 | ||
2525 | /* TX */ | |
2526 | /* | |
2527 | * bnad_start_xmit : Netdev entry point for Transmit | |
2528 | * Called under lock held by net_device | |
2529 | */ | |
2530 | static netdev_tx_t | |
2531 | bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) | |
2532 | { | |
2533 | struct bnad *bnad = netdev_priv(netdev); | |
078086f3 RM |
2534 | u32 txq_id = 0; |
2535 | struct bna_tcb *tcb = bnad->tx_info[0].tcb[txq_id]; | |
8b230ed8 | 2536 | |
0120b99c RM |
2537 | u16 txq_prod, vlan_tag = 0; |
2538 | u32 unmap_prod, wis, wis_used, wi_range; | |
2539 | u32 vectors, vect_id, i, acked; | |
0120b99c | 2540 | int err; |
271e8b79 RM |
2541 | unsigned int len; |
2542 | u32 gso_size; | |
8b230ed8 | 2543 | |
078086f3 | 2544 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
0120b99c | 2545 | dma_addr_t dma_addr; |
8b230ed8 | 2546 | struct bna_txq_entry *txqent; |
078086f3 | 2547 | u16 flags; |
8b230ed8 | 2548 | |
271e8b79 RM |
2549 | if (unlikely(skb->len <= ETH_HLEN)) { |
2550 | dev_kfree_skb(skb); | |
2551 | BNAD_UPDATE_CTR(bnad, tx_skb_too_short); | |
2552 | return NETDEV_TX_OK; | |
2553 | } | |
2554 | if (unlikely(skb_headlen(skb) > BFI_TX_MAX_DATA_PER_VECTOR)) { | |
8b230ed8 | 2555 | dev_kfree_skb(skb); |
271e8b79 RM |
2556 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_too_long); |
2557 | return NETDEV_TX_OK; | |
2558 | } | |
2559 | if (unlikely(skb_headlen(skb) == 0)) { | |
2560 | dev_kfree_skb(skb); | |
2561 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero); | |
8b230ed8 RM |
2562 | return NETDEV_TX_OK; |
2563 | } | |
2564 | ||
2565 | /* | |
2566 | * Takes care of the Tx that is scheduled between clearing the flag | |
19dbff9f | 2567 | * and the netif_tx_stop_all_queues() call. |
8b230ed8 | 2568 | */ |
be7fa326 | 2569 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) { |
8b230ed8 | 2570 | dev_kfree_skb(skb); |
271e8b79 | 2571 | BNAD_UPDATE_CTR(bnad, tx_skb_stopping); |
8b230ed8 RM |
2572 | return NETDEV_TX_OK; |
2573 | } | |
2574 | ||
8b230ed8 | 2575 | vectors = 1 + skb_shinfo(skb)->nr_frags; |
271e8b79 | 2576 | if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) { |
8b230ed8 | 2577 | dev_kfree_skb(skb); |
271e8b79 | 2578 | BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors); |
8b230ed8 RM |
2579 | return NETDEV_TX_OK; |
2580 | } | |
2581 | wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */ | |
2582 | acked = 0; | |
078086f3 RM |
2583 | if (unlikely(wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) || |
2584 | vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) { | |
8b230ed8 RM |
2585 | if ((u16) (*tcb->hw_consumer_index) != |
2586 | tcb->consumer_index && | |
2587 | !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { | |
2588 | acked = bnad_free_txbufs(bnad, tcb); | |
be7fa326 RM |
2589 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
2590 | bna_ib_ack(tcb->i_dbell, acked); | |
8b230ed8 RM |
2591 | smp_mb__before_clear_bit(); |
2592 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
2593 | } else { | |
2594 | netif_stop_queue(netdev); | |
2595 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); | |
2596 | } | |
2597 | ||
2598 | smp_mb(); | |
2599 | /* | |
2600 | * Check again to deal with race condition between | |
2601 | * netif_stop_queue here, and netif_wake_queue in | |
2602 | * interrupt handler which is not inside netif tx lock. | |
2603 | */ | |
2604 | if (likely | |
2605 | (wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) || | |
2606 | vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) { | |
2607 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); | |
2608 | return NETDEV_TX_BUSY; | |
2609 | } else { | |
2610 | netif_wake_queue(netdev); | |
2611 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | unmap_prod = unmap_q->producer_index; | |
8b230ed8 RM |
2616 | flags = 0; |
2617 | ||
2618 | txq_prod = tcb->producer_index; | |
2619 | BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt, txqent, wi_range); | |
8b230ed8 RM |
2620 | txqent->hdr.wi.reserved = 0; |
2621 | txqent->hdr.wi.num_vectors = vectors; | |
8b230ed8 | 2622 | |
eab6d18d | 2623 | if (vlan_tx_tag_present(skb)) { |
8b230ed8 RM |
2624 | vlan_tag = (u16) vlan_tx_tag_get(skb); |
2625 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); | |
2626 | } | |
2627 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) { | |
2628 | vlan_tag = | |
2629 | (tcb->priority & 0x7) << 13 | (vlan_tag & 0x1fff); | |
2630 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); | |
2631 | } | |
2632 | ||
2633 | txqent->hdr.wi.vlan_tag = htons(vlan_tag); | |
2634 | ||
2635 | if (skb_is_gso(skb)) { | |
271e8b79 RM |
2636 | gso_size = skb_shinfo(skb)->gso_size; |
2637 | ||
2638 | if (unlikely(gso_size > netdev->mtu)) { | |
2639 | dev_kfree_skb(skb); | |
2640 | BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long); | |
2641 | return NETDEV_TX_OK; | |
2642 | } | |
2643 | if (unlikely((gso_size + skb_transport_offset(skb) + | |
2644 | tcp_hdrlen(skb)) >= skb->len)) { | |
2645 | txqent->hdr.wi.opcode = | |
2646 | __constant_htons(BNA_TXQ_WI_SEND); | |
2647 | txqent->hdr.wi.lso_mss = 0; | |
2648 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short); | |
2649 | } else { | |
2650 | txqent->hdr.wi.opcode = | |
2651 | __constant_htons(BNA_TXQ_WI_SEND_LSO); | |
2652 | txqent->hdr.wi.lso_mss = htons(gso_size); | |
2653 | } | |
2654 | ||
8b230ed8 | 2655 | err = bnad_tso_prepare(bnad, skb); |
271e8b79 | 2656 | if (unlikely(err)) { |
8b230ed8 | 2657 | dev_kfree_skb(skb); |
271e8b79 | 2658 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare); |
8b230ed8 RM |
2659 | return NETDEV_TX_OK; |
2660 | } | |
8b230ed8 RM |
2661 | flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM); |
2662 | txqent->hdr.wi.l4_hdr_size_n_offset = | |
2663 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET | |
2664 | (tcp_hdrlen(skb) >> 2, | |
2665 | skb_transport_offset(skb))); | |
271e8b79 RM |
2666 | } else { |
2667 | txqent->hdr.wi.opcode = __constant_htons(BNA_TXQ_WI_SEND); | |
8b230ed8 RM |
2668 | txqent->hdr.wi.lso_mss = 0; |
2669 | ||
271e8b79 RM |
2670 | if (unlikely(skb->len > (netdev->mtu + ETH_HLEN))) { |
2671 | dev_kfree_skb(skb); | |
2672 | BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long); | |
2673 | return NETDEV_TX_OK; | |
8b230ed8 | 2674 | } |
8b230ed8 | 2675 | |
271e8b79 RM |
2676 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
2677 | u8 proto = 0; | |
8b230ed8 | 2678 | |
271e8b79 RM |
2679 | if (skb->protocol == __constant_htons(ETH_P_IP)) |
2680 | proto = ip_hdr(skb)->protocol; | |
2681 | else if (skb->protocol == | |
2682 | __constant_htons(ETH_P_IPV6)) { | |
2683 | /* nexthdr may not be TCP immediately. */ | |
2684 | proto = ipv6_hdr(skb)->nexthdr; | |
2685 | } | |
2686 | if (proto == IPPROTO_TCP) { | |
2687 | flags |= BNA_TXQ_WI_CF_TCP_CKSUM; | |
2688 | txqent->hdr.wi.l4_hdr_size_n_offset = | |
2689 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET | |
2690 | (0, skb_transport_offset(skb))); | |
2691 | ||
2692 | BNAD_UPDATE_CTR(bnad, tcpcsum_offload); | |
2693 | ||
2694 | if (unlikely(skb_headlen(skb) < | |
2695 | skb_transport_offset(skb) + tcp_hdrlen(skb))) { | |
2696 | dev_kfree_skb(skb); | |
2697 | BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr); | |
2698 | return NETDEV_TX_OK; | |
2699 | } | |
8b230ed8 | 2700 | |
271e8b79 RM |
2701 | } else if (proto == IPPROTO_UDP) { |
2702 | flags |= BNA_TXQ_WI_CF_UDP_CKSUM; | |
2703 | txqent->hdr.wi.l4_hdr_size_n_offset = | |
2704 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET | |
2705 | (0, skb_transport_offset(skb))); | |
2706 | ||
2707 | BNAD_UPDATE_CTR(bnad, udpcsum_offload); | |
2708 | if (unlikely(skb_headlen(skb) < | |
2709 | skb_transport_offset(skb) + | |
2710 | sizeof(struct udphdr))) { | |
2711 | dev_kfree_skb(skb); | |
2712 | BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr); | |
2713 | return NETDEV_TX_OK; | |
2714 | } | |
2715 | } else { | |
8b230ed8 | 2716 | dev_kfree_skb(skb); |
271e8b79 | 2717 | BNAD_UPDATE_CTR(bnad, tx_skb_csum_err); |
8b230ed8 RM |
2718 | return NETDEV_TX_OK; |
2719 | } | |
271e8b79 RM |
2720 | } else { |
2721 | txqent->hdr.wi.l4_hdr_size_n_offset = 0; | |
8b230ed8 | 2722 | } |
8b230ed8 RM |
2723 | } |
2724 | ||
2725 | txqent->hdr.wi.flags = htons(flags); | |
2726 | ||
2727 | txqent->hdr.wi.frame_length = htonl(skb->len); | |
2728 | ||
2729 | unmap_q->unmap_array[unmap_prod].skb = skb; | |
271e8b79 RM |
2730 | len = skb_headlen(skb); |
2731 | txqent->vector[0].length = htons(len); | |
5ea74318 IV |
2732 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
2733 | skb_headlen(skb), DMA_TO_DEVICE); | |
2734 | dma_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr, | |
8b230ed8 RM |
2735 | dma_addr); |
2736 | ||
271e8b79 | 2737 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr); |
8b230ed8 RM |
2738 | BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth); |
2739 | ||
271e8b79 RM |
2740 | vect_id = 0; |
2741 | wis_used = 1; | |
2742 | ||
8b230ed8 RM |
2743 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
2744 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; | |
078086f3 | 2745 | u16 size = frag->size; |
8b230ed8 | 2746 | |
271e8b79 RM |
2747 | if (unlikely(size == 0)) { |
2748 | unmap_prod = unmap_q->producer_index; | |
2749 | ||
2750 | unmap_prod = bnad_pci_unmap_skb(&bnad->pcidev->dev, | |
2751 | unmap_q->unmap_array, | |
2752 | unmap_prod, unmap_q->q_depth, skb, | |
2753 | i); | |
2754 | dev_kfree_skb(skb); | |
2755 | BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero); | |
2756 | return NETDEV_TX_OK; | |
2757 | } | |
2758 | ||
2759 | len += size; | |
2760 | ||
8b230ed8 RM |
2761 | if (++vect_id == BFI_TX_MAX_VECTORS_PER_WI) { |
2762 | vect_id = 0; | |
2763 | if (--wi_range) | |
2764 | txqent++; | |
2765 | else { | |
2766 | BNA_QE_INDX_ADD(txq_prod, wis_used, | |
2767 | tcb->q_depth); | |
2768 | wis_used = 0; | |
2769 | BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt, | |
2770 | txqent, wi_range); | |
8b230ed8 RM |
2771 | } |
2772 | wis_used++; | |
271e8b79 RM |
2773 | txqent->hdr.wi_ext.opcode = |
2774 | __constant_htons(BNA_TXQ_WI_EXTENSION); | |
8b230ed8 RM |
2775 | } |
2776 | ||
2777 | BUG_ON(!(size <= BFI_TX_MAX_DATA_PER_VECTOR)); | |
2778 | txqent->vector[vect_id].length = htons(size); | |
4d5b1a67 IC |
2779 | dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag, |
2780 | 0, size, DMA_TO_DEVICE); | |
5ea74318 | 2781 | dma_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr, |
8b230ed8 RM |
2782 | dma_addr); |
2783 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr); | |
2784 | BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth); | |
2785 | } | |
2786 | ||
271e8b79 RM |
2787 | if (unlikely(len != skb->len)) { |
2788 | unmap_prod = unmap_q->producer_index; | |
2789 | ||
2790 | unmap_prod = bnad_pci_unmap_skb(&bnad->pcidev->dev, | |
2791 | unmap_q->unmap_array, unmap_prod, | |
2792 | unmap_q->q_depth, skb, | |
2793 | skb_shinfo(skb)->nr_frags); | |
2794 | dev_kfree_skb(skb); | |
2795 | BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch); | |
2796 | return NETDEV_TX_OK; | |
2797 | } | |
2798 | ||
8b230ed8 RM |
2799 | unmap_q->producer_index = unmap_prod; |
2800 | BNA_QE_INDX_ADD(txq_prod, wis_used, tcb->q_depth); | |
2801 | tcb->producer_index = txq_prod; | |
2802 | ||
2803 | smp_mb(); | |
be7fa326 RM |
2804 | |
2805 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) | |
2806 | return NETDEV_TX_OK; | |
2807 | ||
8b230ed8 | 2808 | bna_txq_prod_indx_doorbell(tcb); |
271e8b79 | 2809 | smp_mb(); |
8b230ed8 RM |
2810 | |
2811 | if ((u16) (*tcb->hw_consumer_index) != tcb->consumer_index) | |
2812 | tasklet_schedule(&bnad->tx_free_tasklet); | |
2813 | ||
2814 | return NETDEV_TX_OK; | |
2815 | } | |
2816 | ||
2817 | /* | |
2818 | * Used spin_lock to synchronize reading of stats structures, which | |
2819 | * is written by BNA under the same lock. | |
2820 | */ | |
250e061e ED |
2821 | static struct rtnl_link_stats64 * |
2822 | bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) | |
8b230ed8 RM |
2823 | { |
2824 | struct bnad *bnad = netdev_priv(netdev); | |
2825 | unsigned long flags; | |
2826 | ||
2827 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2828 | ||
250e061e ED |
2829 | bnad_netdev_qstats_fill(bnad, stats); |
2830 | bnad_netdev_hwstats_fill(bnad, stats); | |
8b230ed8 RM |
2831 | |
2832 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2833 | ||
250e061e | 2834 | return stats; |
8b230ed8 RM |
2835 | } |
2836 | ||
a2122d95 | 2837 | void |
8b230ed8 RM |
2838 | bnad_set_rx_mode(struct net_device *netdev) |
2839 | { | |
2840 | struct bnad *bnad = netdev_priv(netdev); | |
2841 | u32 new_mask, valid_mask; | |
2842 | unsigned long flags; | |
2843 | ||
2844 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2845 | ||
2846 | new_mask = valid_mask = 0; | |
2847 | ||
2848 | if (netdev->flags & IFF_PROMISC) { | |
2849 | if (!(bnad->cfg_flags & BNAD_CF_PROMISC)) { | |
2850 | new_mask = BNAD_RXMODE_PROMISC_DEFAULT; | |
2851 | valid_mask = BNAD_RXMODE_PROMISC_DEFAULT; | |
2852 | bnad->cfg_flags |= BNAD_CF_PROMISC; | |
2853 | } | |
2854 | } else { | |
2855 | if (bnad->cfg_flags & BNAD_CF_PROMISC) { | |
2856 | new_mask = ~BNAD_RXMODE_PROMISC_DEFAULT; | |
2857 | valid_mask = BNAD_RXMODE_PROMISC_DEFAULT; | |
2858 | bnad->cfg_flags &= ~BNAD_CF_PROMISC; | |
2859 | } | |
2860 | } | |
2861 | ||
2862 | if (netdev->flags & IFF_ALLMULTI) { | |
2863 | if (!(bnad->cfg_flags & BNAD_CF_ALLMULTI)) { | |
2864 | new_mask |= BNA_RXMODE_ALLMULTI; | |
2865 | valid_mask |= BNA_RXMODE_ALLMULTI; | |
2866 | bnad->cfg_flags |= BNAD_CF_ALLMULTI; | |
2867 | } | |
2868 | } else { | |
2869 | if (bnad->cfg_flags & BNAD_CF_ALLMULTI) { | |
2870 | new_mask &= ~BNA_RXMODE_ALLMULTI; | |
2871 | valid_mask |= BNA_RXMODE_ALLMULTI; | |
2872 | bnad->cfg_flags &= ~BNAD_CF_ALLMULTI; | |
2873 | } | |
2874 | } | |
2875 | ||
271e8b79 RM |
2876 | if (bnad->rx_info[0].rx == NULL) |
2877 | goto unlock; | |
2878 | ||
8b230ed8 RM |
2879 | bna_rx_mode_set(bnad->rx_info[0].rx, new_mask, valid_mask, NULL); |
2880 | ||
2881 | if (!netdev_mc_empty(netdev)) { | |
2882 | u8 *mcaddr_list; | |
2883 | int mc_count = netdev_mc_count(netdev); | |
2884 | ||
2885 | /* Index 0 holds the broadcast address */ | |
2886 | mcaddr_list = | |
2887 | kzalloc((mc_count + 1) * ETH_ALEN, | |
2888 | GFP_ATOMIC); | |
2889 | if (!mcaddr_list) | |
ca1cef3a | 2890 | goto unlock; |
8b230ed8 RM |
2891 | |
2892 | memcpy(&mcaddr_list[0], &bnad_bcast_addr[0], ETH_ALEN); | |
2893 | ||
2894 | /* Copy rest of the MC addresses */ | |
2895 | bnad_netdev_mc_list_get(netdev, mcaddr_list); | |
2896 | ||
2897 | bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1, | |
2898 | mcaddr_list, NULL); | |
2899 | ||
2900 | /* Should we enable BNAD_CF_ALLMULTI for err != 0 ? */ | |
2901 | kfree(mcaddr_list); | |
2902 | } | |
ca1cef3a | 2903 | unlock: |
8b230ed8 RM |
2904 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2905 | } | |
2906 | ||
2907 | /* | |
2908 | * bna_lock is used to sync writes to netdev->addr | |
2909 | * conf_lock cannot be used since this call may be made | |
2910 | * in a non-blocking context. | |
2911 | */ | |
2912 | static int | |
2913 | bnad_set_mac_address(struct net_device *netdev, void *mac_addr) | |
2914 | { | |
2915 | int err; | |
2916 | struct bnad *bnad = netdev_priv(netdev); | |
2917 | struct sockaddr *sa = (struct sockaddr *)mac_addr; | |
2918 | unsigned long flags; | |
2919 | ||
2920 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2921 | ||
2922 | err = bnad_mac_addr_set_locked(bnad, sa->sa_data); | |
2923 | ||
2924 | if (!err) | |
2925 | memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len); | |
2926 | ||
2927 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2928 | ||
2929 | return err; | |
2930 | } | |
2931 | ||
2932 | static int | |
078086f3 | 2933 | bnad_mtu_set(struct bnad *bnad, int mtu) |
8b230ed8 | 2934 | { |
8b230ed8 RM |
2935 | unsigned long flags; |
2936 | ||
078086f3 RM |
2937 | init_completion(&bnad->bnad_completions.mtu_comp); |
2938 | ||
2939 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2940 | bna_enet_mtu_set(&bnad->bna.enet, mtu, bnad_cb_enet_mtu_set); | |
2941 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2942 | ||
2943 | wait_for_completion(&bnad->bnad_completions.mtu_comp); | |
2944 | ||
2945 | return bnad->bnad_completions.mtu_comp_status; | |
2946 | } | |
2947 | ||
2948 | static int | |
2949 | bnad_change_mtu(struct net_device *netdev, int new_mtu) | |
2950 | { | |
2951 | int err, mtu = netdev->mtu; | |
8b230ed8 RM |
2952 | struct bnad *bnad = netdev_priv(netdev); |
2953 | ||
2954 | if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU) | |
2955 | return -EINVAL; | |
2956 | ||
2957 | mutex_lock(&bnad->conf_mutex); | |
2958 | ||
2959 | netdev->mtu = new_mtu; | |
2960 | ||
078086f3 RM |
2961 | mtu = ETH_HLEN + VLAN_HLEN + new_mtu + ETH_FCS_LEN; |
2962 | err = bnad_mtu_set(bnad, mtu); | |
2963 | if (err) | |
2964 | err = -EBUSY; | |
8b230ed8 RM |
2965 | |
2966 | mutex_unlock(&bnad->conf_mutex); | |
2967 | return err; | |
2968 | } | |
2969 | ||
8b230ed8 RM |
2970 | static void |
2971 | bnad_vlan_rx_add_vid(struct net_device *netdev, | |
2972 | unsigned short vid) | |
2973 | { | |
2974 | struct bnad *bnad = netdev_priv(netdev); | |
2975 | unsigned long flags; | |
2976 | ||
2977 | if (!bnad->rx_info[0].rx) | |
2978 | return; | |
2979 | ||
2980 | mutex_lock(&bnad->conf_mutex); | |
2981 | ||
2982 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2983 | bna_rx_vlan_add(bnad->rx_info[0].rx, vid); | |
f859d7cb | 2984 | set_bit(vid, bnad->active_vlans); |
8b230ed8 RM |
2985 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2986 | ||
2987 | mutex_unlock(&bnad->conf_mutex); | |
2988 | } | |
2989 | ||
2990 | static void | |
2991 | bnad_vlan_rx_kill_vid(struct net_device *netdev, | |
2992 | unsigned short vid) | |
2993 | { | |
2994 | struct bnad *bnad = netdev_priv(netdev); | |
2995 | unsigned long flags; | |
2996 | ||
2997 | if (!bnad->rx_info[0].rx) | |
2998 | return; | |
2999 | ||
3000 | mutex_lock(&bnad->conf_mutex); | |
3001 | ||
3002 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
f859d7cb | 3003 | clear_bit(vid, bnad->active_vlans); |
8b230ed8 RM |
3004 | bna_rx_vlan_del(bnad->rx_info[0].rx, vid); |
3005 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3006 | ||
3007 | mutex_unlock(&bnad->conf_mutex); | |
3008 | } | |
3009 | ||
3010 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3011 | static void | |
3012 | bnad_netpoll(struct net_device *netdev) | |
3013 | { | |
3014 | struct bnad *bnad = netdev_priv(netdev); | |
3015 | struct bnad_rx_info *rx_info; | |
3016 | struct bnad_rx_ctrl *rx_ctrl; | |
3017 | u32 curr_mask; | |
3018 | int i, j; | |
3019 | ||
3020 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { | |
3021 | bna_intx_disable(&bnad->bna, curr_mask); | |
3022 | bnad_isr(bnad->pcidev->irq, netdev); | |
3023 | bna_intx_enable(&bnad->bna, curr_mask); | |
3024 | } else { | |
19dbff9f RM |
3025 | /* |
3026 | * Tx processing may happen in sending context, so no need | |
3027 | * to explicitly process completions here | |
3028 | */ | |
3029 | ||
3030 | /* Rx processing */ | |
8b230ed8 RM |
3031 | for (i = 0; i < bnad->num_rx; i++) { |
3032 | rx_info = &bnad->rx_info[i]; | |
3033 | if (!rx_info->rx) | |
3034 | continue; | |
3035 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
3036 | rx_ctrl = &rx_info->rx_ctrl[j]; | |
271e8b79 | 3037 | if (rx_ctrl->ccb) |
8b230ed8 RM |
3038 | bnad_netif_rx_schedule_poll(bnad, |
3039 | rx_ctrl->ccb); | |
8b230ed8 RM |
3040 | } |
3041 | } | |
3042 | } | |
3043 | } | |
3044 | #endif | |
3045 | ||
3046 | static const struct net_device_ops bnad_netdev_ops = { | |
3047 | .ndo_open = bnad_open, | |
3048 | .ndo_stop = bnad_stop, | |
3049 | .ndo_start_xmit = bnad_start_xmit, | |
250e061e | 3050 | .ndo_get_stats64 = bnad_get_stats64, |
8b230ed8 | 3051 | .ndo_set_rx_mode = bnad_set_rx_mode, |
8b230ed8 RM |
3052 | .ndo_validate_addr = eth_validate_addr, |
3053 | .ndo_set_mac_address = bnad_set_mac_address, | |
3054 | .ndo_change_mtu = bnad_change_mtu, | |
8b230ed8 RM |
3055 | .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid, |
3056 | .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid, | |
3057 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3058 | .ndo_poll_controller = bnad_netpoll | |
3059 | #endif | |
3060 | }; | |
3061 | ||
3062 | static void | |
3063 | bnad_netdev_init(struct bnad *bnad, bool using_dac) | |
3064 | { | |
3065 | struct net_device *netdev = bnad->netdev; | |
3066 | ||
e5ee20e7 MM |
3067 | netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | |
3068 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
3069 | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_TX; | |
8b230ed8 | 3070 | |
e5ee20e7 MM |
3071 | netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA | |
3072 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
3073 | NETIF_F_TSO | NETIF_F_TSO6; | |
8b230ed8 | 3074 | |
e5ee20e7 MM |
3075 | netdev->features |= netdev->hw_features | |
3076 | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; | |
8b230ed8 RM |
3077 | |
3078 | if (using_dac) | |
3079 | netdev->features |= NETIF_F_HIGHDMA; | |
3080 | ||
8b230ed8 RM |
3081 | netdev->mem_start = bnad->mmio_start; |
3082 | netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1; | |
3083 | ||
3084 | netdev->netdev_ops = &bnad_netdev_ops; | |
3085 | bnad_set_ethtool_ops(netdev); | |
3086 | } | |
3087 | ||
3088 | /* | |
3089 | * 1. Initialize the bnad structure | |
3090 | * 2. Setup netdev pointer in pci_dev | |
3091 | * 3. Initialze Tx free tasklet | |
3092 | * 4. Initialize no. of TxQ & CQs & MSIX vectors | |
3093 | */ | |
3094 | static int | |
3095 | bnad_init(struct bnad *bnad, | |
3096 | struct pci_dev *pdev, struct net_device *netdev) | |
3097 | { | |
3098 | unsigned long flags; | |
3099 | ||
3100 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
3101 | pci_set_drvdata(pdev, netdev); | |
3102 | ||
3103 | bnad->netdev = netdev; | |
3104 | bnad->pcidev = pdev; | |
3105 | bnad->mmio_start = pci_resource_start(pdev, 0); | |
3106 | bnad->mmio_len = pci_resource_len(pdev, 0); | |
3107 | bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len); | |
3108 | if (!bnad->bar0) { | |
3109 | dev_err(&pdev->dev, "ioremap for bar0 failed\n"); | |
3110 | pci_set_drvdata(pdev, NULL); | |
3111 | return -ENOMEM; | |
3112 | } | |
3113 | pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0, | |
3114 | (unsigned long long) bnad->mmio_len); | |
3115 | ||
3116 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3117 | if (!bnad_msix_disable) | |
3118 | bnad->cfg_flags = BNAD_CF_MSIX; | |
3119 | ||
3120 | bnad->cfg_flags |= BNAD_CF_DIM_ENABLED; | |
3121 | ||
3122 | bnad_q_num_init(bnad); | |
3123 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3124 | ||
3125 | bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) + | |
3126 | (bnad->num_rx * bnad->num_rxp_per_rx) + | |
3127 | BNAD_MAILBOX_MSIX_VECTORS; | |
8b230ed8 RM |
3128 | |
3129 | bnad->txq_depth = BNAD_TXQ_DEPTH; | |
3130 | bnad->rxq_depth = BNAD_RXQ_DEPTH; | |
8b230ed8 RM |
3131 | |
3132 | bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO; | |
3133 | bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO; | |
3134 | ||
3135 | tasklet_init(&bnad->tx_free_tasklet, bnad_tx_free_tasklet, | |
3136 | (unsigned long)bnad); | |
3137 | ||
3138 | return 0; | |
3139 | } | |
3140 | ||
3141 | /* | |
3142 | * Must be called after bnad_pci_uninit() | |
3143 | * so that iounmap() and pci_set_drvdata(NULL) | |
3144 | * happens only after PCI uninitialization. | |
3145 | */ | |
3146 | static void | |
3147 | bnad_uninit(struct bnad *bnad) | |
3148 | { | |
3149 | if (bnad->bar0) | |
3150 | iounmap(bnad->bar0); | |
3151 | pci_set_drvdata(bnad->pcidev, NULL); | |
3152 | } | |
3153 | ||
3154 | /* | |
3155 | * Initialize locks | |
078086f3 | 3156 | a) Per ioceth mutes used for serializing configuration |
8b230ed8 RM |
3157 | changes from OS interface |
3158 | b) spin lock used to protect bna state machine | |
3159 | */ | |
3160 | static void | |
3161 | bnad_lock_init(struct bnad *bnad) | |
3162 | { | |
3163 | spin_lock_init(&bnad->bna_lock); | |
3164 | mutex_init(&bnad->conf_mutex); | |
3165 | } | |
3166 | ||
3167 | static void | |
3168 | bnad_lock_uninit(struct bnad *bnad) | |
3169 | { | |
3170 | mutex_destroy(&bnad->conf_mutex); | |
3171 | } | |
3172 | ||
3173 | /* PCI Initialization */ | |
3174 | static int | |
3175 | bnad_pci_init(struct bnad *bnad, | |
3176 | struct pci_dev *pdev, bool *using_dac) | |
3177 | { | |
3178 | int err; | |
3179 | ||
3180 | err = pci_enable_device(pdev); | |
3181 | if (err) | |
3182 | return err; | |
3183 | err = pci_request_regions(pdev, BNAD_NAME); | |
3184 | if (err) | |
3185 | goto disable_device; | |
5ea74318 IV |
3186 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
3187 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { | |
8b230ed8 RM |
3188 | *using_dac = 1; |
3189 | } else { | |
5ea74318 | 3190 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
8b230ed8 | 3191 | if (err) { |
5ea74318 IV |
3192 | err = dma_set_coherent_mask(&pdev->dev, |
3193 | DMA_BIT_MASK(32)); | |
8b230ed8 RM |
3194 | if (err) |
3195 | goto release_regions; | |
3196 | } | |
3197 | *using_dac = 0; | |
3198 | } | |
3199 | pci_set_master(pdev); | |
3200 | return 0; | |
3201 | ||
3202 | release_regions: | |
3203 | pci_release_regions(pdev); | |
3204 | disable_device: | |
3205 | pci_disable_device(pdev); | |
3206 | ||
3207 | return err; | |
3208 | } | |
3209 | ||
3210 | static void | |
3211 | bnad_pci_uninit(struct pci_dev *pdev) | |
3212 | { | |
3213 | pci_release_regions(pdev); | |
3214 | pci_disable_device(pdev); | |
3215 | } | |
3216 | ||
3217 | static int __devinit | |
3218 | bnad_pci_probe(struct pci_dev *pdev, | |
3219 | const struct pci_device_id *pcidev_id) | |
3220 | { | |
3caa1e95 | 3221 | bool using_dac; |
0120b99c | 3222 | int err; |
8b230ed8 RM |
3223 | struct bnad *bnad; |
3224 | struct bna *bna; | |
3225 | struct net_device *netdev; | |
3226 | struct bfa_pcidev pcidev_info; | |
3227 | unsigned long flags; | |
3228 | ||
3229 | pr_info("bnad_pci_probe : (0x%p, 0x%p) PCI Func : (%d)\n", | |
3230 | pdev, pcidev_id, PCI_FUNC(pdev->devfn)); | |
3231 | ||
3232 | mutex_lock(&bnad_fwimg_mutex); | |
3233 | if (!cna_get_firmware_buf(pdev)) { | |
3234 | mutex_unlock(&bnad_fwimg_mutex); | |
3235 | pr_warn("Failed to load Firmware Image!\n"); | |
3236 | return -ENODEV; | |
3237 | } | |
3238 | mutex_unlock(&bnad_fwimg_mutex); | |
3239 | ||
3240 | /* | |
3241 | * Allocates sizeof(struct net_device + struct bnad) | |
3242 | * bnad = netdev->priv | |
3243 | */ | |
3244 | netdev = alloc_etherdev(sizeof(struct bnad)); | |
3245 | if (!netdev) { | |
078086f3 | 3246 | dev_err(&pdev->dev, "netdev allocation failed\n"); |
8b230ed8 RM |
3247 | err = -ENOMEM; |
3248 | return err; | |
3249 | } | |
3250 | bnad = netdev_priv(netdev); | |
3251 | ||
078086f3 RM |
3252 | bnad_lock_init(bnad); |
3253 | ||
3254 | mutex_lock(&bnad->conf_mutex); | |
8b230ed8 RM |
3255 | /* |
3256 | * PCI initialization | |
0120b99c | 3257 | * Output : using_dac = 1 for 64 bit DMA |
be7fa326 | 3258 | * = 0 for 32 bit DMA |
8b230ed8 RM |
3259 | */ |
3260 | err = bnad_pci_init(bnad, pdev, &using_dac); | |
3261 | if (err) | |
44861f44 | 3262 | goto unlock_mutex; |
8b230ed8 | 3263 | |
8b230ed8 RM |
3264 | /* |
3265 | * Initialize bnad structure | |
3266 | * Setup relation between pci_dev & netdev | |
3267 | * Init Tx free tasklet | |
3268 | */ | |
3269 | err = bnad_init(bnad, pdev, netdev); | |
3270 | if (err) | |
3271 | goto pci_uninit; | |
078086f3 | 3272 | |
8b230ed8 RM |
3273 | /* Initialize netdev structure, set up ethtool ops */ |
3274 | bnad_netdev_init(bnad, using_dac); | |
3275 | ||
815f41e7 RM |
3276 | /* Set link to down state */ |
3277 | netif_carrier_off(netdev); | |
3278 | ||
8b230ed8 | 3279 | /* Get resource requirement form bna */ |
078086f3 | 3280 | spin_lock_irqsave(&bnad->bna_lock, flags); |
8b230ed8 | 3281 | bna_res_req(&bnad->res_info[0]); |
078086f3 | 3282 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
3283 | |
3284 | /* Allocate resources from bna */ | |
078086f3 | 3285 | err = bnad_res_alloc(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
8b230ed8 | 3286 | if (err) |
078086f3 | 3287 | goto drv_uninit; |
8b230ed8 RM |
3288 | |
3289 | bna = &bnad->bna; | |
3290 | ||
3291 | /* Setup pcidev_info for bna_init() */ | |
3292 | pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn); | |
3293 | pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn); | |
3294 | pcidev_info.device_id = bnad->pcidev->device; | |
3295 | pcidev_info.pci_bar_kva = bnad->bar0; | |
3296 | ||
8b230ed8 RM |
3297 | spin_lock_irqsave(&bnad->bna_lock, flags); |
3298 | bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]); | |
8b230ed8 RM |
3299 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
3300 | ||
3301 | bnad->stats.bna_stats = &bna->stats; | |
3302 | ||
078086f3 RM |
3303 | bnad_enable_msix(bnad); |
3304 | err = bnad_mbox_irq_alloc(bnad); | |
3305 | if (err) | |
3306 | goto res_free; | |
3307 | ||
3308 | ||
8b230ed8 | 3309 | /* Set up timers */ |
078086f3 | 3310 | setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout, |
8b230ed8 | 3311 | ((unsigned long)bnad)); |
078086f3 | 3312 | setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check, |
8b230ed8 | 3313 | ((unsigned long)bnad)); |
078086f3 | 3314 | setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout, |
1d32f769 | 3315 | ((unsigned long)bnad)); |
078086f3 | 3316 | setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout, |
8b230ed8 RM |
3317 | ((unsigned long)bnad)); |
3318 | ||
3319 | /* Now start the timer before calling IOC */ | |
078086f3 | 3320 | mod_timer(&bnad->bna.ioceth.ioc.iocpf_timer, |
8b230ed8 RM |
3321 | jiffies + msecs_to_jiffies(BNA_IOC_TIMER_FREQ)); |
3322 | ||
3323 | /* | |
3324 | * Start the chip | |
078086f3 RM |
3325 | * If the call back comes with error, we bail out. |
3326 | * This is a catastrophic error. | |
8b230ed8 | 3327 | */ |
078086f3 RM |
3328 | err = bnad_ioceth_enable(bnad); |
3329 | if (err) { | |
3330 | pr_err("BNA: Initialization failed err=%d\n", | |
3331 | err); | |
3332 | goto probe_success; | |
3333 | } | |
3334 | ||
3335 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3336 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || | |
3337 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) { | |
3338 | bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1, | |
3339 | bna_attr(bna)->num_rxp - 1); | |
3340 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || | |
3341 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) | |
3342 | err = -EIO; | |
3343 | } | |
3caa1e95 RM |
3344 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
3345 | if (err) | |
3346 | goto disable_ioceth; | |
3347 | ||
3348 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
3349 | bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]); |
3350 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3351 | ||
3352 | err = bnad_res_alloc(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); | |
0caa9aae RM |
3353 | if (err) { |
3354 | err = -EIO; | |
078086f3 | 3355 | goto disable_ioceth; |
0caa9aae | 3356 | } |
078086f3 RM |
3357 | |
3358 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3359 | bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]); | |
3360 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 RM |
3361 | |
3362 | /* Get the burnt-in mac */ | |
3363 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 3364 | bna_enet_perm_mac_get(&bna->enet, &bnad->perm_addr); |
8b230ed8 RM |
3365 | bnad_set_netdev_perm_addr(bnad); |
3366 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3367 | ||
0caa9aae RM |
3368 | mutex_unlock(&bnad->conf_mutex); |
3369 | ||
8b230ed8 RM |
3370 | /* Finally, reguister with net_device layer */ |
3371 | err = register_netdev(netdev); | |
3372 | if (err) { | |
3373 | pr_err("BNA : Registering with netdev failed\n"); | |
078086f3 | 3374 | goto probe_uninit; |
8b230ed8 | 3375 | } |
078086f3 | 3376 | set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags); |
8b230ed8 | 3377 | |
0caa9aae RM |
3378 | return 0; |
3379 | ||
078086f3 RM |
3380 | probe_success: |
3381 | mutex_unlock(&bnad->conf_mutex); | |
8b230ed8 RM |
3382 | return 0; |
3383 | ||
078086f3 | 3384 | probe_uninit: |
3fc72370 | 3385 | mutex_lock(&bnad->conf_mutex); |
078086f3 RM |
3386 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
3387 | disable_ioceth: | |
3388 | bnad_ioceth_disable(bnad); | |
3389 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); | |
3390 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); | |
3391 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); | |
8b230ed8 RM |
3392 | spin_lock_irqsave(&bnad->bna_lock, flags); |
3393 | bna_uninit(bna); | |
3394 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
078086f3 | 3395 | bnad_mbox_irq_free(bnad); |
8b230ed8 | 3396 | bnad_disable_msix(bnad); |
078086f3 RM |
3397 | res_free: |
3398 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); | |
3399 | drv_uninit: | |
3400 | bnad_uninit(bnad); | |
8b230ed8 RM |
3401 | pci_uninit: |
3402 | bnad_pci_uninit(pdev); | |
44861f44 | 3403 | unlock_mutex: |
078086f3 | 3404 | mutex_unlock(&bnad->conf_mutex); |
8b230ed8 | 3405 | bnad_lock_uninit(bnad); |
8b230ed8 RM |
3406 | free_netdev(netdev); |
3407 | return err; | |
3408 | } | |
3409 | ||
3410 | static void __devexit | |
3411 | bnad_pci_remove(struct pci_dev *pdev) | |
3412 | { | |
3413 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3414 | struct bnad *bnad; | |
3415 | struct bna *bna; | |
3416 | unsigned long flags; | |
3417 | ||
3418 | if (!netdev) | |
3419 | return; | |
3420 | ||
3421 | pr_info("%s bnad_pci_remove\n", netdev->name); | |
3422 | bnad = netdev_priv(netdev); | |
3423 | bna = &bnad->bna; | |
3424 | ||
078086f3 RM |
3425 | if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags)) |
3426 | unregister_netdev(netdev); | |
8b230ed8 RM |
3427 | |
3428 | mutex_lock(&bnad->conf_mutex); | |
078086f3 RM |
3429 | bnad_ioceth_disable(bnad); |
3430 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); | |
3431 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); | |
3432 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); | |
8b230ed8 RM |
3433 | spin_lock_irqsave(&bnad->bna_lock, flags); |
3434 | bna_uninit(bna); | |
3435 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 | 3436 | |
078086f3 RM |
3437 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
3438 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); | |
3439 | bnad_mbox_irq_free(bnad); | |
8b230ed8 RM |
3440 | bnad_disable_msix(bnad); |
3441 | bnad_pci_uninit(pdev); | |
078086f3 | 3442 | mutex_unlock(&bnad->conf_mutex); |
8b230ed8 RM |
3443 | bnad_lock_uninit(bnad); |
3444 | bnad_uninit(bnad); | |
3445 | free_netdev(netdev); | |
3446 | } | |
3447 | ||
0120b99c | 3448 | static DEFINE_PCI_DEVICE_TABLE(bnad_pci_id_table) = { |
8b230ed8 RM |
3449 | { |
3450 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, | |
3451 | PCI_DEVICE_ID_BROCADE_CT), | |
3452 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, | |
3453 | .class_mask = 0xffff00 | |
586b2816 RM |
3454 | }, |
3455 | { | |
3456 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, | |
3457 | BFA_PCI_DEVICE_ID_CT2), | |
3458 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, | |
3459 | .class_mask = 0xffff00 | |
3460 | }, | |
3461 | {0, }, | |
8b230ed8 RM |
3462 | }; |
3463 | ||
3464 | MODULE_DEVICE_TABLE(pci, bnad_pci_id_table); | |
3465 | ||
3466 | static struct pci_driver bnad_pci_driver = { | |
3467 | .name = BNAD_NAME, | |
3468 | .id_table = bnad_pci_id_table, | |
3469 | .probe = bnad_pci_probe, | |
3470 | .remove = __devexit_p(bnad_pci_remove), | |
3471 | }; | |
3472 | ||
3473 | static int __init | |
3474 | bnad_module_init(void) | |
3475 | { | |
3476 | int err; | |
3477 | ||
5aad0011 RM |
3478 | pr_info("Brocade 10G Ethernet driver - version: %s\n", |
3479 | BNAD_VERSION); | |
8b230ed8 | 3480 | |
8a891429 | 3481 | bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover); |
8b230ed8 RM |
3482 | |
3483 | err = pci_register_driver(&bnad_pci_driver); | |
3484 | if (err < 0) { | |
3485 | pr_err("bna : PCI registration failed in module init " | |
3486 | "(%d)\n", err); | |
3487 | return err; | |
3488 | } | |
3489 | ||
3490 | return 0; | |
3491 | } | |
3492 | ||
3493 | static void __exit | |
3494 | bnad_module_exit(void) | |
3495 | { | |
3496 | pci_unregister_driver(&bnad_pci_driver); | |
3497 | ||
3498 | if (bfi_fw) | |
3499 | release_firmware(bfi_fw); | |
3500 | } | |
3501 | ||
3502 | module_init(bnad_module_init); | |
3503 | module_exit(bnad_module_exit); | |
3504 | ||
3505 | MODULE_AUTHOR("Brocade"); | |
3506 | MODULE_LICENSE("GPL"); | |
3507 | MODULE_DESCRIPTION("Brocade 10G PCIe Ethernet driver"); | |
3508 | MODULE_VERSION(BNAD_VERSION); | |
3509 | MODULE_FIRMWARE(CNA_FW_FILE_CT); | |
1bf9fd70 | 3510 | MODULE_FIRMWARE(CNA_FW_FILE_CT2); |