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Commit | Line | Data |
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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> |
9d9779e7 | 28 | #include <linux/module.h> |
8b230ed8 RM |
29 | |
30 | #include "bnad.h" | |
31 | #include "bna.h" | |
32 | #include "cna.h" | |
33 | ||
b7ee31c5 | 34 | static DEFINE_MUTEX(bnad_fwimg_mutex); |
8b230ed8 RM |
35 | |
36 | /* | |
37 | * Module params | |
38 | */ | |
39 | static uint bnad_msix_disable; | |
40 | module_param(bnad_msix_disable, uint, 0444); | |
41 | MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode"); | |
42 | ||
43 | static uint bnad_ioc_auto_recover = 1; | |
44 | module_param(bnad_ioc_auto_recover, uint, 0444); | |
45 | MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery"); | |
46 | ||
7afc5dbd KG |
47 | static uint bna_debugfs_enable = 1; |
48 | module_param(bna_debugfs_enable, uint, S_IRUGO | S_IWUSR); | |
49 | MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1," | |
50 | " Range[false:0|true:1]"); | |
51 | ||
8b230ed8 RM |
52 | /* |
53 | * Global variables | |
54 | */ | |
55 | u32 bnad_rxqs_per_cq = 2; | |
e1e0918f | 56 | static u32 bna_id; |
57 | static struct mutex bnad_list_mutex; | |
58 | static LIST_HEAD(bnad_list); | |
b7ee31c5 | 59 | static const u8 bnad_bcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
8b230ed8 RM |
60 | |
61 | /* | |
62 | * Local MACROS | |
63 | */ | |
64 | #define BNAD_TX_UNMAPQ_DEPTH (bnad->txq_depth * 2) | |
65 | ||
66 | #define BNAD_RX_UNMAPQ_DEPTH (bnad->rxq_depth) | |
67 | ||
68 | #define BNAD_GET_MBOX_IRQ(_bnad) \ | |
69 | (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \ | |
8811e267 | 70 | ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \ |
8b230ed8 RM |
71 | ((_bnad)->pcidev->irq)) |
72 | ||
73 | #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _depth) \ | |
74 | do { \ | |
75 | (_res_info)->res_type = BNA_RES_T_MEM; \ | |
76 | (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \ | |
77 | (_res_info)->res_u.mem_info.num = (_num); \ | |
78 | (_res_info)->res_u.mem_info.len = \ | |
79 | sizeof(struct bnad_unmap_q) + \ | |
80 | (sizeof(struct bnad_skb_unmap) * ((_depth) - 1)); \ | |
81 | } while (0) | |
82 | ||
72a9730b KG |
83 | static void |
84 | bnad_add_to_list(struct bnad *bnad) | |
85 | { | |
86 | mutex_lock(&bnad_list_mutex); | |
87 | list_add_tail(&bnad->list_entry, &bnad_list); | |
88 | bnad->id = bna_id++; | |
89 | mutex_unlock(&bnad_list_mutex); | |
90 | } | |
91 | ||
92 | static void | |
93 | bnad_remove_from_list(struct bnad *bnad) | |
94 | { | |
95 | mutex_lock(&bnad_list_mutex); | |
96 | list_del(&bnad->list_entry); | |
97 | mutex_unlock(&bnad_list_mutex); | |
98 | } | |
99 | ||
8b230ed8 RM |
100 | /* |
101 | * Reinitialize completions in CQ, once Rx is taken down | |
102 | */ | |
103 | static void | |
104 | bnad_cq_cmpl_init(struct bnad *bnad, struct bna_ccb *ccb) | |
105 | { | |
106 | struct bna_cq_entry *cmpl, *next_cmpl; | |
107 | unsigned int wi_range, wis = 0, ccb_prod = 0; | |
108 | int i; | |
109 | ||
110 | BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt, cmpl, | |
111 | wi_range); | |
112 | ||
113 | for (i = 0; i < ccb->q_depth; i++) { | |
114 | wis++; | |
115 | if (likely(--wi_range)) | |
116 | next_cmpl = cmpl + 1; | |
117 | else { | |
118 | BNA_QE_INDX_ADD(ccb_prod, wis, ccb->q_depth); | |
119 | wis = 0; | |
120 | BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt, | |
121 | next_cmpl, wi_range); | |
122 | } | |
123 | cmpl->valid = 0; | |
124 | cmpl = next_cmpl; | |
125 | } | |
126 | } | |
127 | ||
271e8b79 RM |
128 | static u32 |
129 | bnad_pci_unmap_skb(struct device *pdev, struct bnad_skb_unmap *array, | |
130 | u32 index, u32 depth, struct sk_buff *skb, u32 frag) | |
131 | { | |
132 | int j; | |
133 | array[index].skb = NULL; | |
134 | ||
135 | dma_unmap_single(pdev, dma_unmap_addr(&array[index], dma_addr), | |
136 | skb_headlen(skb), DMA_TO_DEVICE); | |
137 | dma_unmap_addr_set(&array[index], dma_addr, 0); | |
138 | BNA_QE_INDX_ADD(index, 1, depth); | |
139 | ||
140 | for (j = 0; j < frag; j++) { | |
141 | dma_unmap_page(pdev, dma_unmap_addr(&array[index], dma_addr), | |
01b54b14 JH |
142 | skb_frag_size(&skb_shinfo(skb)->frags[j]), |
143 | DMA_TO_DEVICE); | |
271e8b79 RM |
144 | dma_unmap_addr_set(&array[index], dma_addr, 0); |
145 | BNA_QE_INDX_ADD(index, 1, depth); | |
146 | } | |
147 | ||
148 | return index; | |
149 | } | |
150 | ||
8b230ed8 RM |
151 | /* |
152 | * Frees all pending Tx Bufs | |
153 | * At this point no activity is expected on the Q, | |
154 | * so DMA unmap & freeing is fine. | |
155 | */ | |
156 | static void | |
157 | bnad_free_all_txbufs(struct bnad *bnad, | |
158 | struct bna_tcb *tcb) | |
159 | { | |
0120b99c | 160 | u32 unmap_cons; |
8b230ed8 RM |
161 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
162 | struct bnad_skb_unmap *unmap_array; | |
0120b99c | 163 | struct sk_buff *skb = NULL; |
938fa488 | 164 | int q; |
8b230ed8 RM |
165 | |
166 | unmap_array = unmap_q->unmap_array; | |
167 | ||
938fa488 RM |
168 | for (q = 0; q < unmap_q->q_depth; q++) { |
169 | skb = unmap_array[q].skb; | |
170 | if (!skb) | |
8b230ed8 | 171 | continue; |
938fa488 RM |
172 | |
173 | unmap_cons = q; | |
174 | unmap_cons = bnad_pci_unmap_skb(&bnad->pcidev->dev, unmap_array, | |
175 | unmap_cons, unmap_q->q_depth, skb, | |
176 | skb_shinfo(skb)->nr_frags); | |
177 | ||
8b230ed8 RM |
178 | dev_kfree_skb_any(skb); |
179 | } | |
180 | } | |
181 | ||
182 | /* Data Path Handlers */ | |
183 | ||
184 | /* | |
185 | * bnad_free_txbufs : Frees the Tx bufs on Tx completion | |
186 | * Can be called in a) Interrupt context | |
187 | * b) Sending context | |
188 | * c) Tasklet context | |
189 | */ | |
190 | static u32 | |
191 | bnad_free_txbufs(struct bnad *bnad, | |
192 | struct bna_tcb *tcb) | |
193 | { | |
271e8b79 RM |
194 | u32 unmap_cons, sent_packets = 0, sent_bytes = 0; |
195 | u16 wis, updated_hw_cons; | |
8b230ed8 RM |
196 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
197 | struct bnad_skb_unmap *unmap_array; | |
0120b99c | 198 | struct sk_buff *skb; |
8b230ed8 RM |
199 | |
200 | /* | |
201 | * Just return if TX is stopped. This check is useful | |
202 | * when bnad_free_txbufs() runs out of a tasklet scheduled | |
be7fa326 | 203 | * before bnad_cb_tx_cleanup() cleared BNAD_TXQ_TX_STARTED bit |
8b230ed8 RM |
204 | * but this routine runs actually after the cleanup has been |
205 | * executed. | |
206 | */ | |
be7fa326 | 207 | if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
8b230ed8 RM |
208 | return 0; |
209 | ||
210 | updated_hw_cons = *(tcb->hw_consumer_index); | |
211 | ||
212 | wis = BNA_Q_INDEX_CHANGE(tcb->consumer_index, | |
213 | updated_hw_cons, tcb->q_depth); | |
214 | ||
215 | BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth))); | |
216 | ||
217 | unmap_array = unmap_q->unmap_array; | |
218 | unmap_cons = unmap_q->consumer_index; | |
219 | ||
220 | prefetch(&unmap_array[unmap_cons + 1]); | |
221 | while (wis) { | |
222 | skb = unmap_array[unmap_cons].skb; | |
223 | ||
8b230ed8 RM |
224 | sent_packets++; |
225 | sent_bytes += skb->len; | |
226 | wis -= BNA_TXQ_WI_NEEDED(1 + skb_shinfo(skb)->nr_frags); | |
227 | ||
271e8b79 RM |
228 | unmap_cons = bnad_pci_unmap_skb(&bnad->pcidev->dev, unmap_array, |
229 | unmap_cons, unmap_q->q_depth, skb, | |
230 | skb_shinfo(skb)->nr_frags); | |
8b230ed8 | 231 | |
8b230ed8 RM |
232 | dev_kfree_skb_any(skb); |
233 | } | |
234 | ||
235 | /* Update consumer pointers. */ | |
236 | tcb->consumer_index = updated_hw_cons; | |
237 | unmap_q->consumer_index = unmap_cons; | |
238 | ||
239 | tcb->txq->tx_packets += sent_packets; | |
240 | tcb->txq->tx_bytes += sent_bytes; | |
241 | ||
242 | return sent_packets; | |
243 | } | |
244 | ||
245 | /* Tx Free Tasklet function */ | |
246 | /* Frees for all the tcb's in all the Tx's */ | |
247 | /* | |
248 | * Scheduled from sending context, so that | |
249 | * the fat Tx lock is not held for too long | |
250 | * in the sending context. | |
251 | */ | |
252 | static void | |
253 | bnad_tx_free_tasklet(unsigned long bnad_ptr) | |
254 | { | |
255 | struct bnad *bnad = (struct bnad *)bnad_ptr; | |
256 | struct bna_tcb *tcb; | |
0120b99c | 257 | u32 acked = 0; |
8b230ed8 RM |
258 | int i, j; |
259 | ||
260 | for (i = 0; i < bnad->num_tx; i++) { | |
261 | for (j = 0; j < bnad->num_txq_per_tx; j++) { | |
262 | tcb = bnad->tx_info[i].tcb[j]; | |
263 | if (!tcb) | |
264 | continue; | |
265 | if (((u16) (*tcb->hw_consumer_index) != | |
266 | tcb->consumer_index) && | |
267 | (!test_and_set_bit(BNAD_TXQ_FREE_SENT, | |
268 | &tcb->flags))) { | |
269 | acked = bnad_free_txbufs(bnad, tcb); | |
be7fa326 RM |
270 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, |
271 | &tcb->flags))) | |
272 | bna_ib_ack(tcb->i_dbell, acked); | |
8b230ed8 RM |
273 | smp_mb__before_clear_bit(); |
274 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
275 | } | |
f7c0fa4c RM |
276 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, |
277 | &tcb->flags))) | |
278 | continue; | |
279 | if (netif_queue_stopped(bnad->netdev)) { | |
280 | if (acked && netif_carrier_ok(bnad->netdev) && | |
281 | BNA_QE_FREE_CNT(tcb, tcb->q_depth) >= | |
282 | BNAD_NETIF_WAKE_THRESHOLD) { | |
283 | netif_wake_queue(bnad->netdev); | |
284 | /* TODO */ | |
285 | /* Counters for individual TxQs? */ | |
286 | BNAD_UPDATE_CTR(bnad, | |
287 | netif_queue_wakeup); | |
288 | } | |
289 | } | |
8b230ed8 RM |
290 | } |
291 | } | |
292 | } | |
293 | ||
294 | static u32 | |
295 | bnad_tx(struct bnad *bnad, struct bna_tcb *tcb) | |
296 | { | |
297 | struct net_device *netdev = bnad->netdev; | |
be7fa326 | 298 | u32 sent = 0; |
8b230ed8 RM |
299 | |
300 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) | |
301 | return 0; | |
302 | ||
303 | sent = bnad_free_txbufs(bnad, tcb); | |
304 | if (sent) { | |
305 | if (netif_queue_stopped(netdev) && | |
306 | netif_carrier_ok(netdev) && | |
307 | BNA_QE_FREE_CNT(tcb, tcb->q_depth) >= | |
308 | BNAD_NETIF_WAKE_THRESHOLD) { | |
be7fa326 RM |
309 | if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) { |
310 | netif_wake_queue(netdev); | |
311 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); | |
312 | } | |
8b230ed8 | 313 | } |
be7fa326 RM |
314 | } |
315 | ||
316 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) | |
8b230ed8 | 317 | bna_ib_ack(tcb->i_dbell, sent); |
8b230ed8 RM |
318 | |
319 | smp_mb__before_clear_bit(); | |
320 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
321 | ||
322 | return sent; | |
323 | } | |
324 | ||
325 | /* MSIX Tx Completion Handler */ | |
326 | static irqreturn_t | |
327 | bnad_msix_tx(int irq, void *data) | |
328 | { | |
329 | struct bna_tcb *tcb = (struct bna_tcb *)data; | |
330 | struct bnad *bnad = tcb->bnad; | |
331 | ||
332 | bnad_tx(bnad, tcb); | |
333 | ||
334 | return IRQ_HANDLED; | |
335 | } | |
336 | ||
337 | static void | |
338 | bnad_reset_rcb(struct bnad *bnad, struct bna_rcb *rcb) | |
339 | { | |
340 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
341 | ||
342 | rcb->producer_index = 0; | |
343 | rcb->consumer_index = 0; | |
344 | ||
345 | unmap_q->producer_index = 0; | |
346 | unmap_q->consumer_index = 0; | |
347 | } | |
348 | ||
349 | static void | |
be7fa326 | 350 | bnad_free_all_rxbufs(struct bnad *bnad, struct bna_rcb *rcb) |
8b230ed8 RM |
351 | { |
352 | struct bnad_unmap_q *unmap_q; | |
5ea74318 | 353 | struct bnad_skb_unmap *unmap_array; |
8b230ed8 | 354 | struct sk_buff *skb; |
be7fa326 | 355 | int unmap_cons; |
8b230ed8 RM |
356 | |
357 | unmap_q = rcb->unmap_q; | |
5ea74318 | 358 | unmap_array = unmap_q->unmap_array; |
be7fa326 | 359 | for (unmap_cons = 0; unmap_cons < unmap_q->q_depth; unmap_cons++) { |
5ea74318 | 360 | skb = unmap_array[unmap_cons].skb; |
be7fa326 RM |
361 | if (!skb) |
362 | continue; | |
5ea74318 IV |
363 | unmap_array[unmap_cons].skb = NULL; |
364 | dma_unmap_single(&bnad->pcidev->dev, | |
365 | dma_unmap_addr(&unmap_array[unmap_cons], | |
366 | dma_addr), | |
367 | rcb->rxq->buffer_size, | |
368 | DMA_FROM_DEVICE); | |
8b230ed8 | 369 | dev_kfree_skb(skb); |
8b230ed8 | 370 | } |
8b230ed8 RM |
371 | bnad_reset_rcb(bnad, rcb); |
372 | } | |
373 | ||
374 | static void | |
375 | bnad_alloc_n_post_rxbufs(struct bnad *bnad, struct bna_rcb *rcb) | |
376 | { | |
377 | u16 to_alloc, alloced, unmap_prod, wi_range; | |
378 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
379 | struct bnad_skb_unmap *unmap_array; | |
380 | struct bna_rxq_entry *rxent; | |
381 | struct sk_buff *skb; | |
382 | dma_addr_t dma_addr; | |
383 | ||
384 | alloced = 0; | |
385 | to_alloc = | |
386 | BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth); | |
387 | ||
388 | unmap_array = unmap_q->unmap_array; | |
389 | unmap_prod = unmap_q->producer_index; | |
390 | ||
391 | BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent, wi_range); | |
392 | ||
393 | while (to_alloc--) { | |
19dbff9f | 394 | if (!wi_range) |
8b230ed8 RM |
395 | BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent, |
396 | wi_range); | |
0a0e2344 ED |
397 | skb = netdev_alloc_skb_ip_align(bnad->netdev, |
398 | rcb->rxq->buffer_size); | |
8b230ed8 RM |
399 | if (unlikely(!skb)) { |
400 | BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed); | |
3caa1e95 | 401 | rcb->rxq->rxbuf_alloc_failed++; |
8b230ed8 RM |
402 | goto finishing; |
403 | } | |
8b230ed8 | 404 | unmap_array[unmap_prod].skb = skb; |
5ea74318 IV |
405 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
406 | rcb->rxq->buffer_size, | |
407 | DMA_FROM_DEVICE); | |
408 | dma_unmap_addr_set(&unmap_array[unmap_prod], dma_addr, | |
8b230ed8 RM |
409 | dma_addr); |
410 | BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr); | |
411 | BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth); | |
412 | ||
413 | rxent++; | |
414 | wi_range--; | |
415 | alloced++; | |
416 | } | |
417 | ||
418 | finishing: | |
419 | if (likely(alloced)) { | |
420 | unmap_q->producer_index = unmap_prod; | |
421 | rcb->producer_index = unmap_prod; | |
422 | smp_mb(); | |
5bcf6ac0 | 423 | if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags))) |
be7fa326 | 424 | bna_rxq_prod_indx_doorbell(rcb); |
8b230ed8 | 425 | } |
8b230ed8 RM |
426 | } |
427 | ||
428 | static inline void | |
429 | bnad_refill_rxq(struct bnad *bnad, struct bna_rcb *rcb) | |
430 | { | |
431 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
432 | ||
433 | if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) { | |
434 | if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth) | |
435 | >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT) | |
436 | bnad_alloc_n_post_rxbufs(bnad, rcb); | |
437 | smp_mb__before_clear_bit(); | |
438 | clear_bit(BNAD_RXQ_REFILL, &rcb->flags); | |
439 | } | |
440 | } | |
441 | ||
442 | static u32 | |
443 | bnad_poll_cq(struct bnad *bnad, struct bna_ccb *ccb, int budget) | |
444 | { | |
445 | struct bna_cq_entry *cmpl, *next_cmpl; | |
446 | struct bna_rcb *rcb = NULL; | |
447 | unsigned int wi_range, packets = 0, wis = 0; | |
448 | struct bnad_unmap_q *unmap_q; | |
5ea74318 | 449 | struct bnad_skb_unmap *unmap_array; |
8b230ed8 | 450 | struct sk_buff *skb; |
5ea74318 | 451 | u32 flags, unmap_cons; |
8b230ed8 | 452 | struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate; |
078086f3 RM |
453 | struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl); |
454 | ||
01b54b14 | 455 | if (!test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)) |
be7fa326 RM |
456 | return 0; |
457 | ||
8b230ed8 RM |
458 | prefetch(bnad->netdev); |
459 | BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt, cmpl, | |
460 | wi_range); | |
461 | BUG_ON(!(wi_range <= ccb->q_depth)); | |
462 | while (cmpl->valid && packets < budget) { | |
463 | packets++; | |
464 | BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length)); | |
465 | ||
078086f3 | 466 | if (bna_is_small_rxq(cmpl->rxq_id)) |
8b230ed8 | 467 | rcb = ccb->rcb[1]; |
078086f3 RM |
468 | else |
469 | rcb = ccb->rcb[0]; | |
8b230ed8 RM |
470 | |
471 | unmap_q = rcb->unmap_q; | |
5ea74318 IV |
472 | unmap_array = unmap_q->unmap_array; |
473 | unmap_cons = unmap_q->consumer_index; | |
8b230ed8 | 474 | |
5ea74318 | 475 | skb = unmap_array[unmap_cons].skb; |
8b230ed8 | 476 | BUG_ON(!(skb)); |
5ea74318 IV |
477 | unmap_array[unmap_cons].skb = NULL; |
478 | dma_unmap_single(&bnad->pcidev->dev, | |
479 | dma_unmap_addr(&unmap_array[unmap_cons], | |
8b230ed8 | 480 | dma_addr), |
5ea74318 IV |
481 | rcb->rxq->buffer_size, |
482 | DMA_FROM_DEVICE); | |
8b230ed8 RM |
483 | BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth); |
484 | ||
485 | /* Should be more efficient ? Performance ? */ | |
486 | BNA_QE_INDX_ADD(rcb->consumer_index, 1, rcb->q_depth); | |
487 | ||
488 | wis++; | |
489 | if (likely(--wi_range)) | |
490 | next_cmpl = cmpl + 1; | |
491 | else { | |
492 | BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth); | |
493 | wis = 0; | |
494 | BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt, | |
495 | next_cmpl, wi_range); | |
496 | BUG_ON(!(wi_range <= ccb->q_depth)); | |
497 | } | |
498 | prefetch(next_cmpl); | |
499 | ||
500 | flags = ntohl(cmpl->flags); | |
501 | if (unlikely | |
502 | (flags & | |
503 | (BNA_CQ_EF_MAC_ERROR | BNA_CQ_EF_FCS_ERROR | | |
504 | BNA_CQ_EF_TOO_LONG))) { | |
505 | dev_kfree_skb_any(skb); | |
506 | rcb->rxq->rx_packets_with_error++; | |
507 | goto next; | |
508 | } | |
509 | ||
510 | skb_put(skb, ntohs(cmpl->length)); | |
511 | if (likely | |
e5ee20e7 | 512 | ((bnad->netdev->features & NETIF_F_RXCSUM) && |
8b230ed8 RM |
513 | (((flags & BNA_CQ_EF_IPV4) && |
514 | (flags & BNA_CQ_EF_L3_CKSUM_OK)) || | |
515 | (flags & BNA_CQ_EF_IPV6)) && | |
516 | (flags & (BNA_CQ_EF_TCP | BNA_CQ_EF_UDP)) && | |
517 | (flags & BNA_CQ_EF_L4_CKSUM_OK))) | |
518 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
519 | else | |
bc8acf2c | 520 | skb_checksum_none_assert(skb); |
8b230ed8 RM |
521 | |
522 | rcb->rxq->rx_packets++; | |
523 | rcb->rxq->rx_bytes += skb->len; | |
524 | skb->protocol = eth_type_trans(skb, bnad->netdev); | |
525 | ||
f859d7cb JP |
526 | if (flags & BNA_CQ_EF_VLAN) |
527 | __vlan_hwaccel_put_tag(skb, ntohs(cmpl->vlan_tag)); | |
528 | ||
078086f3 | 529 | if (skb->ip_summed == CHECKSUM_UNNECESSARY) |
f859d7cb | 530 | napi_gro_receive(&rx_ctrl->napi, skb); |
01b54b14 | 531 | else |
f859d7cb | 532 | netif_receive_skb(skb); |
8b230ed8 RM |
533 | |
534 | next: | |
535 | cmpl->valid = 0; | |
536 | cmpl = next_cmpl; | |
537 | } | |
538 | ||
539 | BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth); | |
540 | ||
2be67144 | 541 | if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))) |
271e8b79 RM |
542 | bna_ib_ack_disable_irq(ccb->i_dbell, packets); |
543 | ||
2be67144 RM |
544 | bnad_refill_rxq(bnad, ccb->rcb[0]); |
545 | if (ccb->rcb[1]) | |
546 | bnad_refill_rxq(bnad, ccb->rcb[1]); | |
8b230ed8 | 547 | |
078086f3 RM |
548 | clear_bit(BNAD_FP_IN_RX_PATH, &rx_ctrl->flags); |
549 | ||
8b230ed8 RM |
550 | return packets; |
551 | } | |
552 | ||
8b230ed8 RM |
553 | static void |
554 | bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb) | |
555 | { | |
556 | struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl); | |
be7fa326 RM |
557 | struct napi_struct *napi = &rx_ctrl->napi; |
558 | ||
559 | if (likely(napi_schedule_prep(napi))) { | |
be7fa326 | 560 | __napi_schedule(napi); |
271e8b79 | 561 | rx_ctrl->rx_schedule++; |
8b230ed8 | 562 | } |
8b230ed8 RM |
563 | } |
564 | ||
565 | /* MSIX Rx Path Handler */ | |
566 | static irqreturn_t | |
567 | bnad_msix_rx(int irq, void *data) | |
568 | { | |
569 | struct bna_ccb *ccb = (struct bna_ccb *)data; | |
8b230ed8 | 570 | |
271e8b79 RM |
571 | if (ccb) { |
572 | ((struct bnad_rx_ctrl *)(ccb->ctrl))->rx_intr_ctr++; | |
2be67144 | 573 | bnad_netif_rx_schedule_poll(ccb->bnad, ccb); |
271e8b79 | 574 | } |
8b230ed8 RM |
575 | |
576 | return IRQ_HANDLED; | |
577 | } | |
578 | ||
579 | /* Interrupt handlers */ | |
580 | ||
581 | /* Mbox Interrupt Handlers */ | |
582 | static irqreturn_t | |
583 | bnad_msix_mbox_handler(int irq, void *data) | |
584 | { | |
585 | u32 intr_status; | |
e2fa6f2e | 586 | unsigned long flags; |
be7fa326 | 587 | struct bnad *bnad = (struct bnad *)data; |
8b230ed8 | 588 | |
8b230ed8 | 589 | spin_lock_irqsave(&bnad->bna_lock, flags); |
dfee325a RM |
590 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { |
591 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
592 | return IRQ_HANDLED; | |
593 | } | |
8b230ed8 RM |
594 | |
595 | bna_intr_status_get(&bnad->bna, intr_status); | |
596 | ||
078086f3 | 597 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
8b230ed8 RM |
598 | bna_mbox_handler(&bnad->bna, intr_status); |
599 | ||
600 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
601 | ||
8b230ed8 RM |
602 | return IRQ_HANDLED; |
603 | } | |
604 | ||
605 | static irqreturn_t | |
606 | bnad_isr(int irq, void *data) | |
607 | { | |
608 | int i, j; | |
609 | u32 intr_status; | |
610 | unsigned long flags; | |
be7fa326 | 611 | struct bnad *bnad = (struct bnad *)data; |
8b230ed8 RM |
612 | struct bnad_rx_info *rx_info; |
613 | struct bnad_rx_ctrl *rx_ctrl; | |
078086f3 | 614 | struct bna_tcb *tcb = NULL; |
8b230ed8 | 615 | |
dfee325a RM |
616 | spin_lock_irqsave(&bnad->bna_lock, flags); |
617 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { | |
618 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
e2fa6f2e | 619 | return IRQ_NONE; |
dfee325a | 620 | } |
8b230ed8 RM |
621 | |
622 | bna_intr_status_get(&bnad->bna, intr_status); | |
e2fa6f2e | 623 | |
dfee325a RM |
624 | if (unlikely(!intr_status)) { |
625 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 | 626 | return IRQ_NONE; |
dfee325a | 627 | } |
8b230ed8 | 628 | |
078086f3 | 629 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
8b230ed8 | 630 | bna_mbox_handler(&bnad->bna, intr_status); |
be7fa326 | 631 | |
8b230ed8 RM |
632 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
633 | ||
be7fa326 RM |
634 | if (!BNA_IS_INTX_DATA_INTR(intr_status)) |
635 | return IRQ_HANDLED; | |
636 | ||
8b230ed8 | 637 | /* Process data interrupts */ |
be7fa326 RM |
638 | /* Tx processing */ |
639 | for (i = 0; i < bnad->num_tx; i++) { | |
078086f3 RM |
640 | for (j = 0; j < bnad->num_txq_per_tx; j++) { |
641 | tcb = bnad->tx_info[i].tcb[j]; | |
642 | if (tcb && test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) | |
643 | bnad_tx(bnad, bnad->tx_info[i].tcb[j]); | |
644 | } | |
be7fa326 RM |
645 | } |
646 | /* Rx processing */ | |
8b230ed8 RM |
647 | for (i = 0; i < bnad->num_rx; i++) { |
648 | rx_info = &bnad->rx_info[i]; | |
649 | if (!rx_info->rx) | |
650 | continue; | |
651 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
652 | rx_ctrl = &rx_info->rx_ctrl[j]; | |
653 | if (rx_ctrl->ccb) | |
654 | bnad_netif_rx_schedule_poll(bnad, | |
655 | rx_ctrl->ccb); | |
656 | } | |
657 | } | |
8b230ed8 RM |
658 | return IRQ_HANDLED; |
659 | } | |
660 | ||
661 | /* | |
662 | * Called in interrupt / callback context | |
663 | * with bna_lock held, so cfg_flags access is OK | |
664 | */ | |
665 | static void | |
666 | bnad_enable_mbox_irq(struct bnad *bnad) | |
667 | { | |
be7fa326 | 668 | clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
e2fa6f2e | 669 | |
8b230ed8 RM |
670 | BNAD_UPDATE_CTR(bnad, mbox_intr_enabled); |
671 | } | |
672 | ||
673 | /* | |
674 | * Called with bnad->bna_lock held b'cos of | |
675 | * bnad->cfg_flags access. | |
676 | */ | |
b7ee31c5 | 677 | static void |
8b230ed8 RM |
678 | bnad_disable_mbox_irq(struct bnad *bnad) |
679 | { | |
be7fa326 | 680 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
8b230ed8 | 681 | |
be7fa326 RM |
682 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
683 | } | |
8b230ed8 | 684 | |
be7fa326 RM |
685 | static void |
686 | bnad_set_netdev_perm_addr(struct bnad *bnad) | |
687 | { | |
688 | struct net_device *netdev = bnad->netdev; | |
e2fa6f2e | 689 | |
be7fa326 RM |
690 | memcpy(netdev->perm_addr, &bnad->perm_addr, netdev->addr_len); |
691 | if (is_zero_ether_addr(netdev->dev_addr)) | |
692 | memcpy(netdev->dev_addr, &bnad->perm_addr, netdev->addr_len); | |
8b230ed8 RM |
693 | } |
694 | ||
695 | /* Control Path Handlers */ | |
696 | ||
697 | /* Callbacks */ | |
698 | void | |
078086f3 | 699 | bnad_cb_mbox_intr_enable(struct bnad *bnad) |
8b230ed8 RM |
700 | { |
701 | bnad_enable_mbox_irq(bnad); | |
702 | } | |
703 | ||
704 | void | |
078086f3 | 705 | bnad_cb_mbox_intr_disable(struct bnad *bnad) |
8b230ed8 RM |
706 | { |
707 | bnad_disable_mbox_irq(bnad); | |
708 | } | |
709 | ||
710 | void | |
078086f3 RM |
711 | bnad_cb_ioceth_ready(struct bnad *bnad) |
712 | { | |
713 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; | |
714 | complete(&bnad->bnad_completions.ioc_comp); | |
715 | } | |
716 | ||
717 | void | |
718 | bnad_cb_ioceth_failed(struct bnad *bnad) | |
8b230ed8 | 719 | { |
078086f3 | 720 | bnad->bnad_completions.ioc_comp_status = BNA_CB_FAIL; |
8b230ed8 | 721 | complete(&bnad->bnad_completions.ioc_comp); |
8b230ed8 RM |
722 | } |
723 | ||
724 | void | |
078086f3 | 725 | bnad_cb_ioceth_disabled(struct bnad *bnad) |
8b230ed8 | 726 | { |
078086f3 | 727 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; |
8b230ed8 | 728 | complete(&bnad->bnad_completions.ioc_comp); |
8b230ed8 RM |
729 | } |
730 | ||
731 | static void | |
078086f3 | 732 | bnad_cb_enet_disabled(void *arg) |
8b230ed8 RM |
733 | { |
734 | struct bnad *bnad = (struct bnad *)arg; | |
735 | ||
8b230ed8 | 736 | netif_carrier_off(bnad->netdev); |
078086f3 | 737 | complete(&bnad->bnad_completions.enet_comp); |
8b230ed8 RM |
738 | } |
739 | ||
740 | void | |
078086f3 | 741 | bnad_cb_ethport_link_status(struct bnad *bnad, |
8b230ed8 RM |
742 | enum bna_link_status link_status) |
743 | { | |
3db1cd5c | 744 | bool link_up = false; |
8b230ed8 RM |
745 | |
746 | link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP); | |
747 | ||
748 | if (link_status == BNA_CEE_UP) { | |
078086f3 RM |
749 | if (!test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) |
750 | BNAD_UPDATE_CTR(bnad, cee_toggle); | |
8b230ed8 | 751 | set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
078086f3 RM |
752 | } else { |
753 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) | |
754 | BNAD_UPDATE_CTR(bnad, cee_toggle); | |
8b230ed8 | 755 | clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
078086f3 | 756 | } |
8b230ed8 RM |
757 | |
758 | if (link_up) { | |
759 | if (!netif_carrier_ok(bnad->netdev)) { | |
078086f3 RM |
760 | uint tx_id, tcb_id; |
761 | printk(KERN_WARNING "bna: %s link up\n", | |
8b230ed8 RM |
762 | bnad->netdev->name); |
763 | netif_carrier_on(bnad->netdev); | |
764 | BNAD_UPDATE_CTR(bnad, link_toggle); | |
078086f3 RM |
765 | for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) { |
766 | for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx; | |
767 | tcb_id++) { | |
768 | struct bna_tcb *tcb = | |
769 | bnad->tx_info[tx_id].tcb[tcb_id]; | |
770 | u32 txq_id; | |
771 | if (!tcb) | |
772 | continue; | |
773 | ||
774 | txq_id = tcb->id; | |
775 | ||
776 | if (test_bit(BNAD_TXQ_TX_STARTED, | |
777 | &tcb->flags)) { | |
778 | /* | |
779 | * Force an immediate | |
780 | * Transmit Schedule */ | |
781 | printk(KERN_INFO "bna: %s %d " | |
782 | "TXQ_STARTED\n", | |
783 | bnad->netdev->name, | |
784 | txq_id); | |
785 | netif_wake_subqueue( | |
786 | bnad->netdev, | |
787 | txq_id); | |
788 | BNAD_UPDATE_CTR(bnad, | |
789 | netif_queue_wakeup); | |
790 | } else { | |
791 | netif_stop_subqueue( | |
792 | bnad->netdev, | |
793 | txq_id); | |
794 | BNAD_UPDATE_CTR(bnad, | |
795 | netif_queue_stop); | |
796 | } | |
797 | } | |
8b230ed8 RM |
798 | } |
799 | } | |
800 | } else { | |
801 | if (netif_carrier_ok(bnad->netdev)) { | |
078086f3 | 802 | printk(KERN_WARNING "bna: %s link down\n", |
8b230ed8 RM |
803 | bnad->netdev->name); |
804 | netif_carrier_off(bnad->netdev); | |
805 | BNAD_UPDATE_CTR(bnad, link_toggle); | |
806 | } | |
807 | } | |
808 | } | |
809 | ||
810 | static void | |
078086f3 | 811 | bnad_cb_tx_disabled(void *arg, struct bna_tx *tx) |
8b230ed8 RM |
812 | { |
813 | struct bnad *bnad = (struct bnad *)arg; | |
814 | ||
815 | complete(&bnad->bnad_completions.tx_comp); | |
816 | } | |
817 | ||
818 | static void | |
819 | bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb) | |
820 | { | |
821 | struct bnad_tx_info *tx_info = | |
822 | (struct bnad_tx_info *)tcb->txq->tx->priv; | |
823 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; | |
824 | ||
825 | tx_info->tcb[tcb->id] = tcb; | |
826 | unmap_q->producer_index = 0; | |
827 | unmap_q->consumer_index = 0; | |
828 | unmap_q->q_depth = BNAD_TX_UNMAPQ_DEPTH; | |
829 | } | |
830 | ||
831 | static void | |
832 | bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb) | |
833 | { | |
834 | struct bnad_tx_info *tx_info = | |
835 | (struct bnad_tx_info *)tcb->txq->tx->priv; | |
836 | ||
837 | tx_info->tcb[tcb->id] = NULL; | |
01b54b14 | 838 | tcb->priv = NULL; |
8b230ed8 RM |
839 | } |
840 | ||
841 | static void | |
842 | bnad_cb_rcb_setup(struct bnad *bnad, struct bna_rcb *rcb) | |
843 | { | |
844 | struct bnad_unmap_q *unmap_q = rcb->unmap_q; | |
845 | ||
846 | unmap_q->producer_index = 0; | |
847 | unmap_q->consumer_index = 0; | |
848 | unmap_q->q_depth = BNAD_RX_UNMAPQ_DEPTH; | |
849 | } | |
850 | ||
851 | static void | |
852 | bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb) | |
853 | { | |
854 | struct bnad_rx_info *rx_info = | |
855 | (struct bnad_rx_info *)ccb->cq->rx->priv; | |
856 | ||
857 | rx_info->rx_ctrl[ccb->id].ccb = ccb; | |
858 | ccb->ctrl = &rx_info->rx_ctrl[ccb->id]; | |
859 | } | |
860 | ||
861 | static void | |
862 | bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb) | |
863 | { | |
864 | struct bnad_rx_info *rx_info = | |
865 | (struct bnad_rx_info *)ccb->cq->rx->priv; | |
866 | ||
867 | rx_info->rx_ctrl[ccb->id].ccb = NULL; | |
868 | } | |
869 | ||
870 | static void | |
078086f3 | 871 | bnad_cb_tx_stall(struct bnad *bnad, struct bna_tx *tx) |
8b230ed8 RM |
872 | { |
873 | struct bnad_tx_info *tx_info = | |
078086f3 RM |
874 | (struct bnad_tx_info *)tx->priv; |
875 | struct bna_tcb *tcb; | |
876 | u32 txq_id; | |
877 | int i; | |
8b230ed8 | 878 | |
078086f3 RM |
879 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
880 | tcb = tx_info->tcb[i]; | |
881 | if (!tcb) | |
882 | continue; | |
883 | txq_id = tcb->id; | |
884 | clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); | |
885 | netif_stop_subqueue(bnad->netdev, txq_id); | |
886 | printk(KERN_INFO "bna: %s %d TXQ_STOPPED\n", | |
887 | bnad->netdev->name, txq_id); | |
888 | } | |
8b230ed8 RM |
889 | } |
890 | ||
891 | static void | |
078086f3 | 892 | bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx) |
8b230ed8 | 893 | { |
078086f3 RM |
894 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
895 | struct bna_tcb *tcb; | |
078086f3 RM |
896 | u32 txq_id; |
897 | int i; | |
8b230ed8 | 898 | |
078086f3 RM |
899 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
900 | tcb = tx_info->tcb[i]; | |
901 | if (!tcb) | |
902 | continue; | |
903 | txq_id = tcb->id; | |
8b230ed8 | 904 | |
01b54b14 | 905 | BUG_ON(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)); |
078086f3 | 906 | set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); |
01b54b14 | 907 | BUG_ON(*(tcb->hw_consumer_index) != 0); |
078086f3 RM |
908 | |
909 | if (netif_carrier_ok(bnad->netdev)) { | |
910 | printk(KERN_INFO "bna: %s %d TXQ_STARTED\n", | |
911 | bnad->netdev->name, txq_id); | |
912 | netif_wake_subqueue(bnad->netdev, txq_id); | |
913 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); | |
914 | } | |
915 | } | |
be7fa326 RM |
916 | |
917 | /* | |
078086f3 | 918 | * Workaround for first ioceth enable failure & we |
be7fa326 RM |
919 | * get a 0 MAC address. We try to get the MAC address |
920 | * again here. | |
921 | */ | |
922 | if (is_zero_ether_addr(&bnad->perm_addr.mac[0])) { | |
078086f3 | 923 | bna_enet_perm_mac_get(&bnad->bna.enet, &bnad->perm_addr); |
be7fa326 RM |
924 | bnad_set_netdev_perm_addr(bnad); |
925 | } | |
be7fa326 RM |
926 | } |
927 | ||
01b54b14 JH |
928 | /* |
929 | * Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm. | |
930 | */ | |
931 | static void | |
932 | bnad_tx_cleanup(struct delayed_work *work) | |
933 | { | |
934 | struct bnad_tx_info *tx_info = | |
935 | container_of(work, struct bnad_tx_info, tx_cleanup_work); | |
936 | struct bnad *bnad = NULL; | |
937 | struct bnad_unmap_q *unmap_q; | |
938 | struct bna_tcb *tcb; | |
939 | unsigned long flags; | |
940 | uint32_t i, pending = 0; | |
941 | ||
942 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { | |
943 | tcb = tx_info->tcb[i]; | |
944 | if (!tcb) | |
945 | continue; | |
946 | ||
947 | bnad = tcb->bnad; | |
948 | ||
949 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { | |
950 | pending++; | |
951 | continue; | |
952 | } | |
953 | ||
954 | bnad_free_all_txbufs(bnad, tcb); | |
955 | ||
956 | unmap_q = tcb->unmap_q; | |
957 | unmap_q->producer_index = 0; | |
958 | unmap_q->consumer_index = 0; | |
959 | ||
960 | smp_mb__before_clear_bit(); | |
961 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
962 | } | |
963 | ||
964 | if (pending) { | |
965 | queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, | |
966 | msecs_to_jiffies(1)); | |
967 | return; | |
968 | } | |
969 | ||
970 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
971 | bna_tx_cleanup_complete(tx_info->tx); | |
972 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
973 | } | |
974 | ||
975 | ||
be7fa326 | 976 | static void |
078086f3 | 977 | bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx) |
be7fa326 | 978 | { |
078086f3 RM |
979 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
980 | struct bna_tcb *tcb; | |
981 | int i; | |
982 | ||
983 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { | |
984 | tcb = tx_info->tcb[i]; | |
985 | if (!tcb) | |
986 | continue; | |
987 | } | |
988 | ||
01b54b14 | 989 | queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, 0); |
8b230ed8 RM |
990 | } |
991 | ||
5bcf6ac0 RM |
992 | static void |
993 | bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx) | |
994 | { | |
995 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; | |
996 | struct bna_ccb *ccb; | |
997 | struct bnad_rx_ctrl *rx_ctrl; | |
998 | int i; | |
999 | ||
1000 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { | |
1001 | rx_ctrl = &rx_info->rx_ctrl[i]; | |
1002 | ccb = rx_ctrl->ccb; | |
1003 | if (!ccb) | |
1004 | continue; | |
1005 | ||
1006 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags); | |
1007 | ||
1008 | if (ccb->rcb[1]) | |
1009 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags); | |
1010 | } | |
1011 | } | |
1012 | ||
01b54b14 JH |
1013 | /* |
1014 | * Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm. | |
1015 | */ | |
1016 | static void | |
1017 | bnad_rx_cleanup(void *work) | |
1018 | { | |
1019 | struct bnad_rx_info *rx_info = | |
1020 | container_of(work, struct bnad_rx_info, rx_cleanup_work); | |
1021 | struct bnad_rx_ctrl *rx_ctrl; | |
1022 | struct bnad *bnad = NULL; | |
1023 | unsigned long flags; | |
1024 | uint32_t i; | |
1025 | ||
1026 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { | |
1027 | rx_ctrl = &rx_info->rx_ctrl[i]; | |
1028 | ||
1029 | if (!rx_ctrl->ccb) | |
1030 | continue; | |
1031 | ||
1032 | bnad = rx_ctrl->ccb->bnad; | |
1033 | ||
1034 | /* | |
1035 | * Wait till the poll handler has exited | |
1036 | * and nothing can be scheduled anymore | |
1037 | */ | |
1038 | napi_disable(&rx_ctrl->napi); | |
1039 | ||
1040 | bnad_cq_cmpl_init(bnad, rx_ctrl->ccb); | |
1041 | bnad_free_all_rxbufs(bnad, rx_ctrl->ccb->rcb[0]); | |
1042 | if (rx_ctrl->ccb->rcb[1]) | |
1043 | bnad_free_all_rxbufs(bnad, rx_ctrl->ccb->rcb[1]); | |
1044 | } | |
1045 | ||
1046 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1047 | bna_rx_cleanup_complete(rx_info->rx); | |
1048 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1049 | } | |
1050 | ||
8b230ed8 | 1051 | static void |
078086f3 | 1052 | bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx) |
8b230ed8 | 1053 | { |
078086f3 RM |
1054 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
1055 | struct bna_ccb *ccb; | |
1056 | struct bnad_rx_ctrl *rx_ctrl; | |
1057 | int i; | |
1058 | ||
772b5235 | 1059 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
078086f3 RM |
1060 | rx_ctrl = &rx_info->rx_ctrl[i]; |
1061 | ccb = rx_ctrl->ccb; | |
1062 | if (!ccb) | |
1063 | continue; | |
1064 | ||
1065 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags); | |
1066 | ||
1067 | if (ccb->rcb[1]) | |
1068 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags); | |
078086f3 | 1069 | } |
be7fa326 | 1070 | |
01b54b14 | 1071 | queue_work(bnad->work_q, &rx_info->rx_cleanup_work); |
8b230ed8 RM |
1072 | } |
1073 | ||
1074 | static void | |
078086f3 | 1075 | bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx) |
8b230ed8 | 1076 | { |
078086f3 RM |
1077 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
1078 | struct bna_ccb *ccb; | |
1079 | struct bna_rcb *rcb; | |
1080 | struct bnad_rx_ctrl *rx_ctrl; | |
1081 | struct bnad_unmap_q *unmap_q; | |
1082 | int i; | |
1083 | int j; | |
be7fa326 | 1084 | |
772b5235 | 1085 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
078086f3 RM |
1086 | rx_ctrl = &rx_info->rx_ctrl[i]; |
1087 | ccb = rx_ctrl->ccb; | |
1088 | if (!ccb) | |
1089 | continue; | |
be7fa326 | 1090 | |
01b54b14 | 1091 | napi_enable(&rx_ctrl->napi); |
8b230ed8 | 1092 | |
078086f3 RM |
1093 | for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) { |
1094 | rcb = ccb->rcb[j]; | |
1095 | if (!rcb) | |
1096 | continue; | |
078086f3 RM |
1097 | |
1098 | set_bit(BNAD_RXQ_STARTED, &rcb->flags); | |
5bcf6ac0 | 1099 | set_bit(BNAD_RXQ_POST_OK, &rcb->flags); |
078086f3 RM |
1100 | unmap_q = rcb->unmap_q; |
1101 | ||
1102 | /* Now allocate & post buffers for this RCB */ | |
1103 | /* !!Allocation in callback context */ | |
1104 | if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) { | |
1105 | if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth) | |
1106 | >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT) | |
1107 | bnad_alloc_n_post_rxbufs(bnad, rcb); | |
1108 | smp_mb__before_clear_bit(); | |
1109 | clear_bit(BNAD_RXQ_REFILL, &rcb->flags); | |
1110 | } | |
1111 | } | |
8b230ed8 RM |
1112 | } |
1113 | } | |
1114 | ||
1115 | static void | |
078086f3 | 1116 | bnad_cb_rx_disabled(void *arg, struct bna_rx *rx) |
8b230ed8 RM |
1117 | { |
1118 | struct bnad *bnad = (struct bnad *)arg; | |
1119 | ||
1120 | complete(&bnad->bnad_completions.rx_comp); | |
1121 | } | |
1122 | ||
1123 | static void | |
078086f3 | 1124 | bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx) |
8b230ed8 | 1125 | { |
078086f3 | 1126 | bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS; |
8b230ed8 RM |
1127 | complete(&bnad->bnad_completions.mcast_comp); |
1128 | } | |
1129 | ||
1130 | void | |
1131 | bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status, | |
1132 | struct bna_stats *stats) | |
1133 | { | |
1134 | if (status == BNA_CB_SUCCESS) | |
1135 | BNAD_UPDATE_CTR(bnad, hw_stats_updates); | |
1136 | ||
1137 | if (!netif_running(bnad->netdev) || | |
1138 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) | |
1139 | return; | |
1140 | ||
1141 | mod_timer(&bnad->stats_timer, | |
1142 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); | |
1143 | } | |
1144 | ||
078086f3 RM |
1145 | static void |
1146 | bnad_cb_enet_mtu_set(struct bnad *bnad) | |
1147 | { | |
1148 | bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS; | |
1149 | complete(&bnad->bnad_completions.mtu_comp); | |
1150 | } | |
1151 | ||
72a9730b KG |
1152 | void |
1153 | bnad_cb_completion(void *arg, enum bfa_status status) | |
1154 | { | |
1155 | struct bnad_iocmd_comp *iocmd_comp = | |
1156 | (struct bnad_iocmd_comp *)arg; | |
1157 | ||
1158 | iocmd_comp->comp_status = (u32) status; | |
1159 | complete(&iocmd_comp->comp); | |
1160 | } | |
1161 | ||
8b230ed8 RM |
1162 | /* Resource allocation, free functions */ |
1163 | ||
1164 | static void | |
1165 | bnad_mem_free(struct bnad *bnad, | |
1166 | struct bna_mem_info *mem_info) | |
1167 | { | |
1168 | int i; | |
1169 | dma_addr_t dma_pa; | |
1170 | ||
1171 | if (mem_info->mdl == NULL) | |
1172 | return; | |
1173 | ||
1174 | for (i = 0; i < mem_info->num; i++) { | |
1175 | if (mem_info->mdl[i].kva != NULL) { | |
1176 | if (mem_info->mem_type == BNA_MEM_T_DMA) { | |
1177 | BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma), | |
1178 | dma_pa); | |
5ea74318 IV |
1179 | dma_free_coherent(&bnad->pcidev->dev, |
1180 | mem_info->mdl[i].len, | |
1181 | mem_info->mdl[i].kva, dma_pa); | |
8b230ed8 RM |
1182 | } else |
1183 | kfree(mem_info->mdl[i].kva); | |
1184 | } | |
1185 | } | |
1186 | kfree(mem_info->mdl); | |
1187 | mem_info->mdl = NULL; | |
1188 | } | |
1189 | ||
1190 | static int | |
1191 | bnad_mem_alloc(struct bnad *bnad, | |
1192 | struct bna_mem_info *mem_info) | |
1193 | { | |
1194 | int i; | |
1195 | dma_addr_t dma_pa; | |
1196 | ||
1197 | if ((mem_info->num == 0) || (mem_info->len == 0)) { | |
1198 | mem_info->mdl = NULL; | |
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr), | |
1203 | GFP_KERNEL); | |
1204 | if (mem_info->mdl == NULL) | |
1205 | return -ENOMEM; | |
1206 | ||
1207 | if (mem_info->mem_type == BNA_MEM_T_DMA) { | |
1208 | for (i = 0; i < mem_info->num; i++) { | |
1209 | mem_info->mdl[i].len = mem_info->len; | |
1210 | mem_info->mdl[i].kva = | |
5ea74318 IV |
1211 | dma_alloc_coherent(&bnad->pcidev->dev, |
1212 | mem_info->len, &dma_pa, | |
1213 | GFP_KERNEL); | |
8b230ed8 RM |
1214 | |
1215 | if (mem_info->mdl[i].kva == NULL) | |
1216 | goto err_return; | |
1217 | ||
1218 | BNA_SET_DMA_ADDR(dma_pa, | |
1219 | &(mem_info->mdl[i].dma)); | |
1220 | } | |
1221 | } else { | |
1222 | for (i = 0; i < mem_info->num; i++) { | |
1223 | mem_info->mdl[i].len = mem_info->len; | |
1224 | mem_info->mdl[i].kva = kzalloc(mem_info->len, | |
1225 | GFP_KERNEL); | |
1226 | if (mem_info->mdl[i].kva == NULL) | |
1227 | goto err_return; | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | return 0; | |
1232 | ||
1233 | err_return: | |
1234 | bnad_mem_free(bnad, mem_info); | |
1235 | return -ENOMEM; | |
1236 | } | |
1237 | ||
1238 | /* Free IRQ for Mailbox */ | |
1239 | static void | |
078086f3 | 1240 | bnad_mbox_irq_free(struct bnad *bnad) |
8b230ed8 RM |
1241 | { |
1242 | int irq; | |
1243 | unsigned long flags; | |
1244 | ||
8b230ed8 | 1245 | spin_lock_irqsave(&bnad->bna_lock, flags); |
8b230ed8 | 1246 | bnad_disable_mbox_irq(bnad); |
e2fa6f2e | 1247 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
1248 | |
1249 | irq = BNAD_GET_MBOX_IRQ(bnad); | |
be7fa326 | 1250 | free_irq(irq, bnad); |
8b230ed8 RM |
1251 | } |
1252 | ||
1253 | /* | |
1254 | * Allocates IRQ for Mailbox, but keep it disabled | |
1255 | * This will be enabled once we get the mbox enable callback | |
1256 | * from bna | |
1257 | */ | |
1258 | static int | |
078086f3 | 1259 | bnad_mbox_irq_alloc(struct bnad *bnad) |
8b230ed8 | 1260 | { |
0120b99c RM |
1261 | int err = 0; |
1262 | unsigned long irq_flags, flags; | |
8b230ed8 | 1263 | u32 irq; |
0120b99c | 1264 | irq_handler_t irq_handler; |
8b230ed8 | 1265 | |
8b230ed8 RM |
1266 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1267 | if (bnad->cfg_flags & BNAD_CF_MSIX) { | |
1268 | irq_handler = (irq_handler_t)bnad_msix_mbox_handler; | |
8811e267 | 1269 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
8279171a | 1270 | irq_flags = 0; |
8b230ed8 RM |
1271 | } else { |
1272 | irq_handler = (irq_handler_t)bnad_isr; | |
1273 | irq = bnad->pcidev->irq; | |
5f77898d | 1274 | irq_flags = IRQF_SHARED; |
8b230ed8 | 1275 | } |
8811e267 | 1276 | |
8b230ed8 | 1277 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
1278 | sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME); |
1279 | ||
e2fa6f2e RM |
1280 | /* |
1281 | * Set the Mbox IRQ disable flag, so that the IRQ handler | |
1282 | * called from request_irq() for SHARED IRQs do not execute | |
1283 | */ | |
1284 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); | |
1285 | ||
be7fa326 RM |
1286 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
1287 | ||
8279171a | 1288 | err = request_irq(irq, irq_handler, irq_flags, |
be7fa326 | 1289 | bnad->mbox_irq_name, bnad); |
e2fa6f2e | 1290 | |
be7fa326 | 1291 | return err; |
8b230ed8 RM |
1292 | } |
1293 | ||
1294 | static void | |
1295 | bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info) | |
1296 | { | |
1297 | kfree(intr_info->idl); | |
1298 | intr_info->idl = NULL; | |
1299 | } | |
1300 | ||
1301 | /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */ | |
1302 | static int | |
1303 | bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src, | |
078086f3 | 1304 | u32 txrx_id, struct bna_intr_info *intr_info) |
8b230ed8 RM |
1305 | { |
1306 | int i, vector_start = 0; | |
1307 | u32 cfg_flags; | |
1308 | unsigned long flags; | |
1309 | ||
1310 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1311 | cfg_flags = bnad->cfg_flags; | |
1312 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1313 | ||
1314 | if (cfg_flags & BNAD_CF_MSIX) { | |
1315 | intr_info->intr_type = BNA_INTR_T_MSIX; | |
1316 | intr_info->idl = kcalloc(intr_info->num, | |
1317 | sizeof(struct bna_intr_descr), | |
1318 | GFP_KERNEL); | |
1319 | if (!intr_info->idl) | |
1320 | return -ENOMEM; | |
1321 | ||
1322 | switch (src) { | |
1323 | case BNAD_INTR_TX: | |
8811e267 | 1324 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id; |
8b230ed8 RM |
1325 | break; |
1326 | ||
1327 | case BNAD_INTR_RX: | |
8811e267 RM |
1328 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + |
1329 | (bnad->num_tx * bnad->num_txq_per_tx) + | |
8b230ed8 RM |
1330 | txrx_id; |
1331 | break; | |
1332 | ||
1333 | default: | |
1334 | BUG(); | |
1335 | } | |
1336 | ||
1337 | for (i = 0; i < intr_info->num; i++) | |
1338 | intr_info->idl[i].vector = vector_start + i; | |
1339 | } else { | |
1340 | intr_info->intr_type = BNA_INTR_T_INTX; | |
1341 | intr_info->num = 1; | |
1342 | intr_info->idl = kcalloc(intr_info->num, | |
1343 | sizeof(struct bna_intr_descr), | |
1344 | GFP_KERNEL); | |
1345 | if (!intr_info->idl) | |
1346 | return -ENOMEM; | |
1347 | ||
1348 | switch (src) { | |
1349 | case BNAD_INTR_TX: | |
8811e267 | 1350 | intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK; |
8b230ed8 RM |
1351 | break; |
1352 | ||
1353 | case BNAD_INTR_RX: | |
8811e267 | 1354 | intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK; |
8b230ed8 RM |
1355 | break; |
1356 | } | |
1357 | } | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | /** | |
1362 | * NOTE: Should be called for MSIX only | |
1363 | * Unregisters Tx MSIX vector(s) from the kernel | |
1364 | */ | |
1365 | static void | |
1366 | bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info, | |
1367 | int num_txqs) | |
1368 | { | |
1369 | int i; | |
1370 | int vector_num; | |
1371 | ||
1372 | for (i = 0; i < num_txqs; i++) { | |
1373 | if (tx_info->tcb[i] == NULL) | |
1374 | continue; | |
1375 | ||
1376 | vector_num = tx_info->tcb[i]->intr_vector; | |
1377 | free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]); | |
1378 | } | |
1379 | } | |
1380 | ||
1381 | /** | |
1382 | * NOTE: Should be called for MSIX only | |
1383 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel | |
1384 | */ | |
1385 | static int | |
1386 | bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info, | |
078086f3 | 1387 | u32 tx_id, int num_txqs) |
8b230ed8 RM |
1388 | { |
1389 | int i; | |
1390 | int err; | |
1391 | int vector_num; | |
1392 | ||
1393 | for (i = 0; i < num_txqs; i++) { | |
1394 | vector_num = tx_info->tcb[i]->intr_vector; | |
1395 | sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name, | |
1396 | tx_id + tx_info->tcb[i]->id); | |
1397 | err = request_irq(bnad->msix_table[vector_num].vector, | |
1398 | (irq_handler_t)bnad_msix_tx, 0, | |
1399 | tx_info->tcb[i]->name, | |
1400 | tx_info->tcb[i]); | |
1401 | if (err) | |
1402 | goto err_return; | |
1403 | } | |
1404 | ||
1405 | return 0; | |
1406 | ||
1407 | err_return: | |
1408 | if (i > 0) | |
1409 | bnad_tx_msix_unregister(bnad, tx_info, (i - 1)); | |
1410 | return -1; | |
1411 | } | |
1412 | ||
1413 | /** | |
1414 | * NOTE: Should be called for MSIX only | |
1415 | * Unregisters Rx MSIX vector(s) from the kernel | |
1416 | */ | |
1417 | static void | |
1418 | bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info, | |
1419 | int num_rxps) | |
1420 | { | |
1421 | int i; | |
1422 | int vector_num; | |
1423 | ||
1424 | for (i = 0; i < num_rxps; i++) { | |
1425 | if (rx_info->rx_ctrl[i].ccb == NULL) | |
1426 | continue; | |
1427 | ||
1428 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; | |
1429 | free_irq(bnad->msix_table[vector_num].vector, | |
1430 | rx_info->rx_ctrl[i].ccb); | |
1431 | } | |
1432 | } | |
1433 | ||
1434 | /** | |
1435 | * NOTE: Should be called for MSIX only | |
1436 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel | |
1437 | */ | |
1438 | static int | |
1439 | bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info, | |
078086f3 | 1440 | u32 rx_id, int num_rxps) |
8b230ed8 RM |
1441 | { |
1442 | int i; | |
1443 | int err; | |
1444 | int vector_num; | |
1445 | ||
1446 | for (i = 0; i < num_rxps; i++) { | |
1447 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; | |
1448 | sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d", | |
1449 | bnad->netdev->name, | |
1450 | rx_id + rx_info->rx_ctrl[i].ccb->id); | |
1451 | err = request_irq(bnad->msix_table[vector_num].vector, | |
1452 | (irq_handler_t)bnad_msix_rx, 0, | |
1453 | rx_info->rx_ctrl[i].ccb->name, | |
1454 | rx_info->rx_ctrl[i].ccb); | |
1455 | if (err) | |
1456 | goto err_return; | |
1457 | } | |
1458 | ||
1459 | return 0; | |
1460 | ||
1461 | err_return: | |
1462 | if (i > 0) | |
1463 | bnad_rx_msix_unregister(bnad, rx_info, (i - 1)); | |
1464 | return -1; | |
1465 | } | |
1466 | ||
1467 | /* Free Tx object Resources */ | |
1468 | static void | |
1469 | bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info) | |
1470 | { | |
1471 | int i; | |
1472 | ||
1473 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { | |
1474 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1475 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); | |
1476 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1477 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); | |
1478 | } | |
1479 | } | |
1480 | ||
1481 | /* Allocates memory and interrupt resources for Tx object */ | |
1482 | static int | |
1483 | bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, | |
078086f3 | 1484 | u32 tx_id) |
8b230ed8 RM |
1485 | { |
1486 | int i, err = 0; | |
1487 | ||
1488 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { | |
1489 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1490 | err = bnad_mem_alloc(bnad, | |
1491 | &res_info[i].res_u.mem_info); | |
1492 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1493 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id, | |
1494 | &res_info[i].res_u.intr_info); | |
1495 | if (err) | |
1496 | goto err_return; | |
1497 | } | |
1498 | return 0; | |
1499 | ||
1500 | err_return: | |
1501 | bnad_tx_res_free(bnad, res_info); | |
1502 | return err; | |
1503 | } | |
1504 | ||
1505 | /* Free Rx object Resources */ | |
1506 | static void | |
1507 | bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info) | |
1508 | { | |
1509 | int i; | |
1510 | ||
1511 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { | |
1512 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1513 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); | |
1514 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1515 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); | |
1516 | } | |
1517 | } | |
1518 | ||
1519 | /* Allocates memory and interrupt resources for Rx object */ | |
1520 | static int | |
1521 | bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, | |
1522 | uint rx_id) | |
1523 | { | |
1524 | int i, err = 0; | |
1525 | ||
1526 | /* All memory needs to be allocated before setup_ccbs */ | |
1527 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { | |
1528 | if (res_info[i].res_type == BNA_RES_T_MEM) | |
1529 | err = bnad_mem_alloc(bnad, | |
1530 | &res_info[i].res_u.mem_info); | |
1531 | else if (res_info[i].res_type == BNA_RES_T_INTR) | |
1532 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id, | |
1533 | &res_info[i].res_u.intr_info); | |
1534 | if (err) | |
1535 | goto err_return; | |
1536 | } | |
1537 | return 0; | |
1538 | ||
1539 | err_return: | |
1540 | bnad_rx_res_free(bnad, res_info); | |
1541 | return err; | |
1542 | } | |
1543 | ||
1544 | /* Timer callbacks */ | |
1545 | /* a) IOC timer */ | |
1546 | static void | |
1547 | bnad_ioc_timeout(unsigned long data) | |
1548 | { | |
1549 | struct bnad *bnad = (struct bnad *)data; | |
1550 | unsigned long flags; | |
1551 | ||
1552 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1553 | bfa_nw_ioc_timeout((void *) &bnad->bna.ioceth.ioc); |
8b230ed8 RM |
1554 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1555 | } | |
1556 | ||
1557 | static void | |
1558 | bnad_ioc_hb_check(unsigned long data) | |
1559 | { | |
1560 | struct bnad *bnad = (struct bnad *)data; | |
1561 | unsigned long flags; | |
1562 | ||
1563 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1564 | bfa_nw_ioc_hb_check((void *) &bnad->bna.ioceth.ioc); |
8b230ed8 RM |
1565 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1566 | } | |
1567 | ||
1568 | static void | |
1d32f769 | 1569 | bnad_iocpf_timeout(unsigned long data) |
8b230ed8 RM |
1570 | { |
1571 | struct bnad *bnad = (struct bnad *)data; | |
1572 | unsigned long flags; | |
1573 | ||
1574 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1575 | bfa_nw_iocpf_timeout((void *) &bnad->bna.ioceth.ioc); |
1d32f769 RM |
1576 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1577 | } | |
1578 | ||
1579 | static void | |
1580 | bnad_iocpf_sem_timeout(unsigned long data) | |
1581 | { | |
1582 | struct bnad *bnad = (struct bnad *)data; | |
1583 | unsigned long flags; | |
1584 | ||
1585 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1586 | bfa_nw_iocpf_sem_timeout((void *) &bnad->bna.ioceth.ioc); |
8b230ed8 RM |
1587 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1588 | } | |
1589 | ||
1590 | /* | |
1591 | * All timer routines use bnad->bna_lock to protect against | |
1592 | * the following race, which may occur in case of no locking: | |
0120b99c | 1593 | * Time CPU m CPU n |
8b230ed8 RM |
1594 | * 0 1 = test_bit |
1595 | * 1 clear_bit | |
1596 | * 2 del_timer_sync | |
1597 | * 3 mod_timer | |
1598 | */ | |
1599 | ||
1600 | /* b) Dynamic Interrupt Moderation Timer */ | |
1601 | static void | |
1602 | bnad_dim_timeout(unsigned long data) | |
1603 | { | |
1604 | struct bnad *bnad = (struct bnad *)data; | |
1605 | struct bnad_rx_info *rx_info; | |
1606 | struct bnad_rx_ctrl *rx_ctrl; | |
1607 | int i, j; | |
1608 | unsigned long flags; | |
1609 | ||
1610 | if (!netif_carrier_ok(bnad->netdev)) | |
1611 | return; | |
1612 | ||
1613 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1614 | for (i = 0; i < bnad->num_rx; i++) { | |
1615 | rx_info = &bnad->rx_info[i]; | |
1616 | if (!rx_info->rx) | |
1617 | continue; | |
1618 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
1619 | rx_ctrl = &rx_info->rx_ctrl[j]; | |
1620 | if (!rx_ctrl->ccb) | |
1621 | continue; | |
1622 | bna_rx_dim_update(rx_ctrl->ccb); | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */ | |
1627 | if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) | |
1628 | mod_timer(&bnad->dim_timer, | |
1629 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); | |
1630 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1631 | } | |
1632 | ||
1633 | /* c) Statistics Timer */ | |
1634 | static void | |
1635 | bnad_stats_timeout(unsigned long data) | |
1636 | { | |
1637 | struct bnad *bnad = (struct bnad *)data; | |
1638 | unsigned long flags; | |
1639 | ||
1640 | if (!netif_running(bnad->netdev) || | |
1641 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) | |
1642 | return; | |
1643 | ||
1644 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 1645 | bna_hw_stats_get(&bnad->bna); |
8b230ed8 RM |
1646 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
1647 | } | |
1648 | ||
1649 | /* | |
1650 | * Set up timer for DIM | |
1651 | * Called with bnad->bna_lock held | |
1652 | */ | |
1653 | void | |
1654 | bnad_dim_timer_start(struct bnad *bnad) | |
1655 | { | |
1656 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && | |
1657 | !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { | |
1658 | setup_timer(&bnad->dim_timer, bnad_dim_timeout, | |
1659 | (unsigned long)bnad); | |
1660 | set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); | |
1661 | mod_timer(&bnad->dim_timer, | |
1662 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* | |
1667 | * Set up timer for statistics | |
1668 | * Called with mutex_lock(&bnad->conf_mutex) held | |
1669 | */ | |
1670 | static void | |
1671 | bnad_stats_timer_start(struct bnad *bnad) | |
1672 | { | |
1673 | unsigned long flags; | |
1674 | ||
1675 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1676 | if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) { | |
1677 | setup_timer(&bnad->stats_timer, bnad_stats_timeout, | |
1678 | (unsigned long)bnad); | |
1679 | mod_timer(&bnad->stats_timer, | |
1680 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); | |
1681 | } | |
1682 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 RM |
1683 | } |
1684 | ||
1685 | /* | |
1686 | * Stops the stats timer | |
1687 | * Called with mutex_lock(&bnad->conf_mutex) held | |
1688 | */ | |
1689 | static void | |
1690 | bnad_stats_timer_stop(struct bnad *bnad) | |
1691 | { | |
1692 | int to_del = 0; | |
1693 | unsigned long flags; | |
1694 | ||
1695 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1696 | if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) | |
1697 | to_del = 1; | |
1698 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1699 | if (to_del) | |
1700 | del_timer_sync(&bnad->stats_timer); | |
1701 | } | |
1702 | ||
1703 | /* Utilities */ | |
1704 | ||
1705 | static void | |
1706 | bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list) | |
1707 | { | |
1708 | int i = 1; /* Index 0 has broadcast address */ | |
1709 | struct netdev_hw_addr *mc_addr; | |
1710 | ||
1711 | netdev_for_each_mc_addr(mc_addr, netdev) { | |
1712 | memcpy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0], | |
1713 | ETH_ALEN); | |
1714 | i++; | |
1715 | } | |
1716 | } | |
1717 | ||
1718 | static int | |
1719 | bnad_napi_poll_rx(struct napi_struct *napi, int budget) | |
1720 | { | |
1721 | struct bnad_rx_ctrl *rx_ctrl = | |
1722 | container_of(napi, struct bnad_rx_ctrl, napi); | |
2be67144 | 1723 | struct bnad *bnad = rx_ctrl->bnad; |
8b230ed8 RM |
1724 | int rcvd = 0; |
1725 | ||
271e8b79 | 1726 | rx_ctrl->rx_poll_ctr++; |
8b230ed8 RM |
1727 | |
1728 | if (!netif_carrier_ok(bnad->netdev)) | |
1729 | goto poll_exit; | |
1730 | ||
2be67144 | 1731 | rcvd = bnad_poll_cq(bnad, rx_ctrl->ccb, budget); |
271e8b79 | 1732 | if (rcvd >= budget) |
8b230ed8 RM |
1733 | return rcvd; |
1734 | ||
1735 | poll_exit: | |
19dbff9f | 1736 | napi_complete(napi); |
8b230ed8 | 1737 | |
271e8b79 | 1738 | rx_ctrl->rx_complete++; |
2be67144 RM |
1739 | |
1740 | if (rx_ctrl->ccb) | |
271e8b79 RM |
1741 | bnad_enable_rx_irq_unsafe(rx_ctrl->ccb); |
1742 | ||
8b230ed8 RM |
1743 | return rcvd; |
1744 | } | |
1745 | ||
2be67144 | 1746 | #define BNAD_NAPI_POLL_QUOTA 64 |
8b230ed8 | 1747 | static void |
01b54b14 | 1748 | bnad_napi_add(struct bnad *bnad, u32 rx_id) |
8b230ed8 | 1749 | { |
8b230ed8 RM |
1750 | struct bnad_rx_ctrl *rx_ctrl; |
1751 | int i; | |
8b230ed8 RM |
1752 | |
1753 | /* Initialize & enable NAPI */ | |
1754 | for (i = 0; i < bnad->num_rxp_per_rx; i++) { | |
1755 | rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i]; | |
1756 | netif_napi_add(bnad->netdev, &rx_ctrl->napi, | |
2be67144 RM |
1757 | bnad_napi_poll_rx, BNAD_NAPI_POLL_QUOTA); |
1758 | } | |
1759 | } | |
1760 | ||
1761 | static void | |
01b54b14 | 1762 | bnad_napi_delete(struct bnad *bnad, u32 rx_id) |
8b230ed8 RM |
1763 | { |
1764 | int i; | |
1765 | ||
1766 | /* First disable and then clean up */ | |
01b54b14 | 1767 | for (i = 0; i < bnad->num_rxp_per_rx; i++) |
8b230ed8 | 1768 | netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi); |
8b230ed8 RM |
1769 | } |
1770 | ||
1771 | /* Should be held with conf_lock held */ | |
1772 | void | |
078086f3 | 1773 | bnad_cleanup_tx(struct bnad *bnad, u32 tx_id) |
8b230ed8 RM |
1774 | { |
1775 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; | |
1776 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; | |
1777 | unsigned long flags; | |
1778 | ||
1779 | if (!tx_info->tx) | |
1780 | return; | |
1781 | ||
1782 | init_completion(&bnad->bnad_completions.tx_comp); | |
1783 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1784 | bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled); | |
1785 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1786 | wait_for_completion(&bnad->bnad_completions.tx_comp); | |
1787 | ||
1788 | if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX) | |
1789 | bnad_tx_msix_unregister(bnad, tx_info, | |
1790 | bnad->num_txq_per_tx); | |
1791 | ||
2be67144 RM |
1792 | if (0 == tx_id) |
1793 | tasklet_kill(&bnad->tx_free_tasklet); | |
1794 | ||
8b230ed8 RM |
1795 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1796 | bna_tx_destroy(tx_info->tx); | |
1797 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1798 | ||
1799 | tx_info->tx = NULL; | |
078086f3 | 1800 | tx_info->tx_id = 0; |
8b230ed8 | 1801 | |
8b230ed8 RM |
1802 | bnad_tx_res_free(bnad, res_info); |
1803 | } | |
1804 | ||
1805 | /* Should be held with conf_lock held */ | |
1806 | int | |
078086f3 | 1807 | bnad_setup_tx(struct bnad *bnad, u32 tx_id) |
8b230ed8 RM |
1808 | { |
1809 | int err; | |
1810 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; | |
1811 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; | |
1812 | struct bna_intr_info *intr_info = | |
1813 | &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; | |
1814 | struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; | |
d91d25d5 | 1815 | static const struct bna_tx_event_cbfn tx_cbfn = { |
1816 | .tcb_setup_cbfn = bnad_cb_tcb_setup, | |
1817 | .tcb_destroy_cbfn = bnad_cb_tcb_destroy, | |
1818 | .tx_stall_cbfn = bnad_cb_tx_stall, | |
1819 | .tx_resume_cbfn = bnad_cb_tx_resume, | |
1820 | .tx_cleanup_cbfn = bnad_cb_tx_cleanup, | |
1821 | }; | |
1822 | ||
8b230ed8 RM |
1823 | struct bna_tx *tx; |
1824 | unsigned long flags; | |
1825 | ||
078086f3 RM |
1826 | tx_info->tx_id = tx_id; |
1827 | ||
8b230ed8 RM |
1828 | /* Initialize the Tx object configuration */ |
1829 | tx_config->num_txq = bnad->num_txq_per_tx; | |
1830 | tx_config->txq_depth = bnad->txq_depth; | |
1831 | tx_config->tx_type = BNA_TX_T_REGULAR; | |
078086f3 | 1832 | tx_config->coalescing_timeo = bnad->tx_coalescing_timeo; |
8b230ed8 | 1833 | |
8b230ed8 RM |
1834 | /* Get BNA's resource requirement for one tx object */ |
1835 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1836 | bna_tx_res_req(bnad->num_txq_per_tx, | |
1837 | bnad->txq_depth, res_info); | |
1838 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1839 | ||
1840 | /* Fill Unmap Q memory requirements */ | |
1841 | BNAD_FILL_UNMAPQ_MEM_REQ( | |
1842 | &res_info[BNA_TX_RES_MEM_T_UNMAPQ], | |
1843 | bnad->num_txq_per_tx, | |
1844 | BNAD_TX_UNMAPQ_DEPTH); | |
1845 | ||
1846 | /* Allocate resources */ | |
1847 | err = bnad_tx_res_alloc(bnad, res_info, tx_id); | |
1848 | if (err) | |
1849 | return err; | |
1850 | ||
1851 | /* Ask BNA to create one Tx object, supplying required resources */ | |
1852 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1853 | tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info, | |
1854 | tx_info); | |
1855 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1856 | if (!tx) | |
1857 | goto err_return; | |
1858 | tx_info->tx = tx; | |
1859 | ||
01b54b14 JH |
1860 | INIT_DELAYED_WORK(&tx_info->tx_cleanup_work, |
1861 | (work_func_t)bnad_tx_cleanup); | |
1862 | ||
8b230ed8 RM |
1863 | /* Register ISR for the Tx object */ |
1864 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { | |
1865 | err = bnad_tx_msix_register(bnad, tx_info, | |
1866 | tx_id, bnad->num_txq_per_tx); | |
1867 | if (err) | |
1868 | goto err_return; | |
1869 | } | |
1870 | ||
1871 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1872 | bna_tx_enable(tx); | |
1873 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1874 | ||
1875 | return 0; | |
1876 | ||
1877 | err_return: | |
1878 | bnad_tx_res_free(bnad, res_info); | |
1879 | return err; | |
1880 | } | |
1881 | ||
1882 | /* Setup the rx config for bna_rx_create */ | |
1883 | /* bnad decides the configuration */ | |
1884 | static void | |
1885 | bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config) | |
1886 | { | |
1887 | rx_config->rx_type = BNA_RX_T_REGULAR; | |
1888 | rx_config->num_paths = bnad->num_rxp_per_rx; | |
078086f3 | 1889 | rx_config->coalescing_timeo = bnad->rx_coalescing_timeo; |
8b230ed8 RM |
1890 | |
1891 | if (bnad->num_rxp_per_rx > 1) { | |
1892 | rx_config->rss_status = BNA_STATUS_T_ENABLED; | |
1893 | rx_config->rss_config.hash_type = | |
078086f3 RM |
1894 | (BFI_ENET_RSS_IPV6 | |
1895 | BFI_ENET_RSS_IPV6_TCP | | |
1896 | BFI_ENET_RSS_IPV4 | | |
1897 | BFI_ENET_RSS_IPV4_TCP); | |
8b230ed8 RM |
1898 | rx_config->rss_config.hash_mask = |
1899 | bnad->num_rxp_per_rx - 1; | |
1900 | get_random_bytes(rx_config->rss_config.toeplitz_hash_key, | |
1901 | sizeof(rx_config->rss_config.toeplitz_hash_key)); | |
1902 | } else { | |
1903 | rx_config->rss_status = BNA_STATUS_T_DISABLED; | |
1904 | memset(&rx_config->rss_config, 0, | |
1905 | sizeof(rx_config->rss_config)); | |
1906 | } | |
1907 | rx_config->rxp_type = BNA_RXP_SLR; | |
1908 | rx_config->q_depth = bnad->rxq_depth; | |
1909 | ||
1910 | rx_config->small_buff_size = BFI_SMALL_RXBUF_SIZE; | |
1911 | ||
1912 | rx_config->vlan_strip_status = BNA_STATUS_T_ENABLED; | |
1913 | } | |
1914 | ||
2be67144 RM |
1915 | static void |
1916 | bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id) | |
1917 | { | |
1918 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; | |
1919 | int i; | |
1920 | ||
1921 | for (i = 0; i < bnad->num_rxp_per_rx; i++) | |
1922 | rx_info->rx_ctrl[i].bnad = bnad; | |
1923 | } | |
1924 | ||
8b230ed8 RM |
1925 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
1926 | void | |
078086f3 | 1927 | bnad_cleanup_rx(struct bnad *bnad, u32 rx_id) |
8b230ed8 RM |
1928 | { |
1929 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; | |
1930 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; | |
1931 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; | |
1932 | unsigned long flags; | |
271e8b79 | 1933 | int to_del = 0; |
8b230ed8 RM |
1934 | |
1935 | if (!rx_info->rx) | |
1936 | return; | |
1937 | ||
1938 | if (0 == rx_id) { | |
1939 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
271e8b79 RM |
1940 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && |
1941 | test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { | |
8b230ed8 | 1942 | clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); |
271e8b79 RM |
1943 | to_del = 1; |
1944 | } | |
8b230ed8 | 1945 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
271e8b79 | 1946 | if (to_del) |
8b230ed8 RM |
1947 | del_timer_sync(&bnad->dim_timer); |
1948 | } | |
1949 | ||
8b230ed8 RM |
1950 | init_completion(&bnad->bnad_completions.rx_comp); |
1951 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
1952 | bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled); | |
1953 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
1954 | wait_for_completion(&bnad->bnad_completions.rx_comp); | |
1955 | ||
1956 | if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX) | |
1957 | bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths); | |
1958 | ||
01b54b14 | 1959 | bnad_napi_delete(bnad, rx_id); |
2be67144 | 1960 | |
8b230ed8 RM |
1961 | spin_lock_irqsave(&bnad->bna_lock, flags); |
1962 | bna_rx_destroy(rx_info->rx); | |
8b230ed8 RM |
1963 | |
1964 | rx_info->rx = NULL; | |
3caa1e95 | 1965 | rx_info->rx_id = 0; |
b9fa1fbf | 1966 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
1967 | |
1968 | bnad_rx_res_free(bnad, res_info); | |
1969 | } | |
1970 | ||
1971 | /* Called with mutex_lock(&bnad->conf_mutex) held */ | |
1972 | int | |
078086f3 | 1973 | bnad_setup_rx(struct bnad *bnad, u32 rx_id) |
8b230ed8 RM |
1974 | { |
1975 | int err; | |
1976 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; | |
1977 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; | |
1978 | struct bna_intr_info *intr_info = | |
1979 | &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; | |
1980 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; | |
d91d25d5 | 1981 | static const struct bna_rx_event_cbfn rx_cbfn = { |
1982 | .rcb_setup_cbfn = bnad_cb_rcb_setup, | |
01b54b14 | 1983 | .rcb_destroy_cbfn = NULL, |
d91d25d5 | 1984 | .ccb_setup_cbfn = bnad_cb_ccb_setup, |
1985 | .ccb_destroy_cbfn = bnad_cb_ccb_destroy, | |
5bcf6ac0 | 1986 | .rx_stall_cbfn = bnad_cb_rx_stall, |
d91d25d5 | 1987 | .rx_cleanup_cbfn = bnad_cb_rx_cleanup, |
1988 | .rx_post_cbfn = bnad_cb_rx_post, | |
1989 | }; | |
8b230ed8 RM |
1990 | struct bna_rx *rx; |
1991 | unsigned long flags; | |
1992 | ||
078086f3 RM |
1993 | rx_info->rx_id = rx_id; |
1994 | ||
8b230ed8 RM |
1995 | /* Initialize the Rx object configuration */ |
1996 | bnad_init_rx_config(bnad, rx_config); | |
1997 | ||
8b230ed8 RM |
1998 | /* Get BNA's resource requirement for one Rx object */ |
1999 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2000 | bna_rx_res_req(rx_config, res_info); | |
2001 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2002 | ||
2003 | /* Fill Unmap Q memory requirements */ | |
2004 | BNAD_FILL_UNMAPQ_MEM_REQ( | |
2005 | &res_info[BNA_RX_RES_MEM_T_UNMAPQ], | |
2006 | rx_config->num_paths + | |
2007 | ((rx_config->rxp_type == BNA_RXP_SINGLE) ? 0 : | |
2008 | rx_config->num_paths), BNAD_RX_UNMAPQ_DEPTH); | |
2009 | ||
2010 | /* Allocate resource */ | |
2011 | err = bnad_rx_res_alloc(bnad, res_info, rx_id); | |
2012 | if (err) | |
2013 | return err; | |
2014 | ||
2be67144 RM |
2015 | bnad_rx_ctrl_init(bnad, rx_id); |
2016 | ||
8b230ed8 RM |
2017 | /* Ask BNA to create one Rx object, supplying required resources */ |
2018 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2019 | rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info, | |
2020 | rx_info); | |
3caa1e95 RM |
2021 | if (!rx) { |
2022 | err = -ENOMEM; | |
b9fa1fbf | 2023 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 | 2024 | goto err_return; |
3caa1e95 | 2025 | } |
8b230ed8 | 2026 | rx_info->rx = rx; |
b9fa1fbf | 2027 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 | 2028 | |
01b54b14 JH |
2029 | INIT_WORK(&rx_info->rx_cleanup_work, |
2030 | (work_func_t)(bnad_rx_cleanup)); | |
2031 | ||
2be67144 RM |
2032 | /* |
2033 | * Init NAPI, so that state is set to NAPI_STATE_SCHED, | |
2034 | * so that IRQ handler cannot schedule NAPI at this point. | |
2035 | */ | |
01b54b14 | 2036 | bnad_napi_add(bnad, rx_id); |
2be67144 | 2037 | |
8b230ed8 RM |
2038 | /* Register ISR for the Rx object */ |
2039 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { | |
2040 | err = bnad_rx_msix_register(bnad, rx_info, rx_id, | |
2041 | rx_config->num_paths); | |
2042 | if (err) | |
2043 | goto err_return; | |
2044 | } | |
2045 | ||
8b230ed8 RM |
2046 | spin_lock_irqsave(&bnad->bna_lock, flags); |
2047 | if (0 == rx_id) { | |
2048 | /* Set up Dynamic Interrupt Moderation Vector */ | |
2049 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED) | |
2050 | bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector); | |
2051 | ||
2052 | /* Enable VLAN filtering only on the default Rx */ | |
2053 | bna_rx_vlanfilter_enable(rx); | |
2054 | ||
2055 | /* Start the DIM timer */ | |
2056 | bnad_dim_timer_start(bnad); | |
2057 | } | |
2058 | ||
2059 | bna_rx_enable(rx); | |
2060 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2061 | ||
2062 | return 0; | |
2063 | ||
2064 | err_return: | |
2065 | bnad_cleanup_rx(bnad, rx_id); | |
2066 | return err; | |
2067 | } | |
2068 | ||
2069 | /* Called with conf_lock & bnad->bna_lock held */ | |
2070 | void | |
2071 | bnad_tx_coalescing_timeo_set(struct bnad *bnad) | |
2072 | { | |
2073 | struct bnad_tx_info *tx_info; | |
2074 | ||
2075 | tx_info = &bnad->tx_info[0]; | |
2076 | if (!tx_info->tx) | |
2077 | return; | |
2078 | ||
2079 | bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo); | |
2080 | } | |
2081 | ||
2082 | /* Called with conf_lock & bnad->bna_lock held */ | |
2083 | void | |
2084 | bnad_rx_coalescing_timeo_set(struct bnad *bnad) | |
2085 | { | |
2086 | struct bnad_rx_info *rx_info; | |
0120b99c | 2087 | int i; |
8b230ed8 RM |
2088 | |
2089 | for (i = 0; i < bnad->num_rx; i++) { | |
2090 | rx_info = &bnad->rx_info[i]; | |
2091 | if (!rx_info->rx) | |
2092 | continue; | |
2093 | bna_rx_coalescing_timeo_set(rx_info->rx, | |
2094 | bnad->rx_coalescing_timeo); | |
2095 | } | |
2096 | } | |
2097 | ||
2098 | /* | |
2099 | * Called with bnad->bna_lock held | |
2100 | */ | |
a2122d95 | 2101 | int |
8b230ed8 RM |
2102 | bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr) |
2103 | { | |
2104 | int ret; | |
2105 | ||
2106 | if (!is_valid_ether_addr(mac_addr)) | |
2107 | return -EADDRNOTAVAIL; | |
2108 | ||
2109 | /* If datapath is down, pretend everything went through */ | |
2110 | if (!bnad->rx_info[0].rx) | |
2111 | return 0; | |
2112 | ||
2113 | ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr, NULL); | |
2114 | if (ret != BNA_CB_SUCCESS) | |
2115 | return -EADDRNOTAVAIL; | |
2116 | ||
2117 | return 0; | |
2118 | } | |
2119 | ||
2120 | /* Should be called with conf_lock held */ | |
a2122d95 | 2121 | int |
8b230ed8 RM |
2122 | bnad_enable_default_bcast(struct bnad *bnad) |
2123 | { | |
2124 | struct bnad_rx_info *rx_info = &bnad->rx_info[0]; | |
2125 | int ret; | |
2126 | unsigned long flags; | |
2127 | ||
2128 | init_completion(&bnad->bnad_completions.mcast_comp); | |
2129 | ||
2130 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2131 | ret = bna_rx_mcast_add(rx_info->rx, (u8 *)bnad_bcast_addr, | |
2132 | bnad_cb_rx_mcast_add); | |
2133 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2134 | ||
2135 | if (ret == BNA_CB_SUCCESS) | |
2136 | wait_for_completion(&bnad->bnad_completions.mcast_comp); | |
2137 | else | |
2138 | return -ENODEV; | |
2139 | ||
2140 | if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS) | |
2141 | return -ENODEV; | |
2142 | ||
2143 | return 0; | |
2144 | } | |
2145 | ||
19dbff9f | 2146 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
a2122d95 | 2147 | void |
aad75b66 RM |
2148 | bnad_restore_vlans(struct bnad *bnad, u32 rx_id) |
2149 | { | |
f859d7cb | 2150 | u16 vid; |
aad75b66 RM |
2151 | unsigned long flags; |
2152 | ||
f859d7cb | 2153 | for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) { |
aad75b66 | 2154 | spin_lock_irqsave(&bnad->bna_lock, flags); |
f859d7cb | 2155 | bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid); |
aad75b66 RM |
2156 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2157 | } | |
2158 | } | |
2159 | ||
8b230ed8 RM |
2160 | /* Statistics utilities */ |
2161 | void | |
250e061e | 2162 | bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
8b230ed8 | 2163 | { |
8b230ed8 RM |
2164 | int i, j; |
2165 | ||
2166 | for (i = 0; i < bnad->num_rx; i++) { | |
2167 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
2168 | if (bnad->rx_info[i].rx_ctrl[j].ccb) { | |
250e061e | 2169 | stats->rx_packets += bnad->rx_info[i]. |
8b230ed8 | 2170 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets; |
250e061e | 2171 | stats->rx_bytes += bnad->rx_info[i]. |
8b230ed8 RM |
2172 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes; |
2173 | if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] && | |
2174 | bnad->rx_info[i].rx_ctrl[j].ccb-> | |
2175 | rcb[1]->rxq) { | |
250e061e | 2176 | stats->rx_packets += |
8b230ed8 RM |
2177 | bnad->rx_info[i].rx_ctrl[j]. |
2178 | ccb->rcb[1]->rxq->rx_packets; | |
250e061e | 2179 | stats->rx_bytes += |
8b230ed8 RM |
2180 | bnad->rx_info[i].rx_ctrl[j]. |
2181 | ccb->rcb[1]->rxq->rx_bytes; | |
2182 | } | |
2183 | } | |
2184 | } | |
2185 | } | |
2186 | for (i = 0; i < bnad->num_tx; i++) { | |
2187 | for (j = 0; j < bnad->num_txq_per_tx; j++) { | |
2188 | if (bnad->tx_info[i].tcb[j]) { | |
250e061e | 2189 | stats->tx_packets += |
8b230ed8 | 2190 | bnad->tx_info[i].tcb[j]->txq->tx_packets; |
250e061e | 2191 | stats->tx_bytes += |
8b230ed8 RM |
2192 | bnad->tx_info[i].tcb[j]->txq->tx_bytes; |
2193 | } | |
2194 | } | |
2195 | } | |
2196 | } | |
2197 | ||
2198 | /* | |
2199 | * Must be called with the bna_lock held. | |
2200 | */ | |
2201 | void | |
250e061e | 2202 | bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
8b230ed8 | 2203 | { |
078086f3 RM |
2204 | struct bfi_enet_stats_mac *mac_stats; |
2205 | u32 bmap; | |
8b230ed8 RM |
2206 | int i; |
2207 | ||
078086f3 | 2208 | mac_stats = &bnad->stats.bna_stats->hw_stats.mac_stats; |
250e061e | 2209 | stats->rx_errors = |
8b230ed8 RM |
2210 | mac_stats->rx_fcs_error + mac_stats->rx_alignment_error + |
2211 | mac_stats->rx_frame_length_error + mac_stats->rx_code_error + | |
2212 | mac_stats->rx_undersize; | |
250e061e | 2213 | stats->tx_errors = mac_stats->tx_fcs_error + |
8b230ed8 | 2214 | mac_stats->tx_undersize; |
250e061e ED |
2215 | stats->rx_dropped = mac_stats->rx_drop; |
2216 | stats->tx_dropped = mac_stats->tx_drop; | |
2217 | stats->multicast = mac_stats->rx_multicast; | |
2218 | stats->collisions = mac_stats->tx_total_collision; | |
8b230ed8 | 2219 | |
250e061e | 2220 | stats->rx_length_errors = mac_stats->rx_frame_length_error; |
8b230ed8 RM |
2221 | |
2222 | /* receive ring buffer overflow ?? */ | |
2223 | ||
250e061e ED |
2224 | stats->rx_crc_errors = mac_stats->rx_fcs_error; |
2225 | stats->rx_frame_errors = mac_stats->rx_alignment_error; | |
8b230ed8 | 2226 | /* recv'r fifo overrun */ |
078086f3 RM |
2227 | bmap = bna_rx_rid_mask(&bnad->bna); |
2228 | for (i = 0; bmap; i++) { | |
8b230ed8 | 2229 | if (bmap & 1) { |
250e061e | 2230 | stats->rx_fifo_errors += |
8b230ed8 | 2231 | bnad->stats.bna_stats-> |
078086f3 | 2232 | hw_stats.rxf_stats[i].frame_drops; |
8b230ed8 RM |
2233 | break; |
2234 | } | |
2235 | bmap >>= 1; | |
2236 | } | |
2237 | } | |
2238 | ||
2239 | static void | |
2240 | bnad_mbox_irq_sync(struct bnad *bnad) | |
2241 | { | |
2242 | u32 irq; | |
2243 | unsigned long flags; | |
2244 | ||
2245 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2246 | if (bnad->cfg_flags & BNAD_CF_MSIX) | |
8811e267 | 2247 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
8b230ed8 RM |
2248 | else |
2249 | irq = bnad->pcidev->irq; | |
2250 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2251 | ||
2252 | synchronize_irq(irq); | |
2253 | } | |
2254 | ||
2255 | /* Utility used by bnad_start_xmit, for doing TSO */ | |
2256 | static int | |
2257 | bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb) | |
2258 | { | |
2259 | int err; | |
2260 | ||
8b230ed8 RM |
2261 | if (skb_header_cloned(skb)) { |
2262 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); | |
2263 | if (err) { | |
2264 | BNAD_UPDATE_CTR(bnad, tso_err); | |
2265 | return err; | |
2266 | } | |
2267 | } | |
2268 | ||
2269 | /* | |
2270 | * For TSO, the TCP checksum field is seeded with pseudo-header sum | |
2271 | * excluding the length field. | |
2272 | */ | |
2273 | if (skb->protocol == htons(ETH_P_IP)) { | |
2274 | struct iphdr *iph = ip_hdr(skb); | |
2275 | ||
2276 | /* Do we really need these? */ | |
2277 | iph->tot_len = 0; | |
2278 | iph->check = 0; | |
2279 | ||
2280 | tcp_hdr(skb)->check = | |
2281 | ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, | |
2282 | IPPROTO_TCP, 0); | |
2283 | BNAD_UPDATE_CTR(bnad, tso4); | |
2284 | } else { | |
2285 | struct ipv6hdr *ipv6h = ipv6_hdr(skb); | |
2286 | ||
8b230ed8 RM |
2287 | ipv6h->payload_len = 0; |
2288 | tcp_hdr(skb)->check = | |
2289 | ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0, | |
2290 | IPPROTO_TCP, 0); | |
2291 | BNAD_UPDATE_CTR(bnad, tso6); | |
2292 | } | |
2293 | ||
2294 | return 0; | |
2295 | } | |
2296 | ||
2297 | /* | |
2298 | * Initialize Q numbers depending on Rx Paths | |
2299 | * Called with bnad->bna_lock held, because of cfg_flags | |
2300 | * access. | |
2301 | */ | |
2302 | static void | |
2303 | bnad_q_num_init(struct bnad *bnad) | |
2304 | { | |
2305 | int rxps; | |
2306 | ||
2307 | rxps = min((uint)num_online_cpus(), | |
772b5235 | 2308 | (uint)(BNAD_MAX_RX * BNAD_MAX_RXP_PER_RX)); |
8b230ed8 RM |
2309 | |
2310 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) | |
2311 | rxps = 1; /* INTx */ | |
2312 | ||
2313 | bnad->num_rx = 1; | |
2314 | bnad->num_tx = 1; | |
2315 | bnad->num_rxp_per_rx = rxps; | |
2316 | bnad->num_txq_per_tx = BNAD_TXQ_NUM; | |
2317 | } | |
2318 | ||
2319 | /* | |
2320 | * Adjusts the Q numbers, given a number of msix vectors | |
2321 | * Give preference to RSS as opposed to Tx priority Queues, | |
2322 | * in such a case, just use 1 Tx Q | |
2323 | * Called with bnad->bna_lock held b'cos of cfg_flags access | |
2324 | */ | |
2325 | static void | |
078086f3 | 2326 | bnad_q_num_adjust(struct bnad *bnad, int msix_vectors, int temp) |
8b230ed8 RM |
2327 | { |
2328 | bnad->num_txq_per_tx = 1; | |
2329 | if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) + | |
2330 | bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) && | |
2331 | (bnad->cfg_flags & BNAD_CF_MSIX)) { | |
2332 | bnad->num_rxp_per_rx = msix_vectors - | |
2333 | (bnad->num_tx * bnad->num_txq_per_tx) - | |
2334 | BNAD_MAILBOX_MSIX_VECTORS; | |
2335 | } else | |
2336 | bnad->num_rxp_per_rx = 1; | |
2337 | } | |
2338 | ||
078086f3 RM |
2339 | /* Enable / disable ioceth */ |
2340 | static int | |
2341 | bnad_ioceth_disable(struct bnad *bnad) | |
8b230ed8 RM |
2342 | { |
2343 | unsigned long flags; | |
078086f3 | 2344 | int err = 0; |
8b230ed8 RM |
2345 | |
2346 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
2347 | init_completion(&bnad->bnad_completions.ioc_comp); |
2348 | bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP); | |
8b230ed8 RM |
2349 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2350 | ||
078086f3 RM |
2351 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
2352 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); | |
2353 | ||
2354 | err = bnad->bnad_completions.ioc_comp_status; | |
2355 | return err; | |
8b230ed8 RM |
2356 | } |
2357 | ||
2358 | static int | |
078086f3 | 2359 | bnad_ioceth_enable(struct bnad *bnad) |
8b230ed8 RM |
2360 | { |
2361 | int err = 0; | |
2362 | unsigned long flags; | |
2363 | ||
8b230ed8 | 2364 | spin_lock_irqsave(&bnad->bna_lock, flags); |
078086f3 RM |
2365 | init_completion(&bnad->bnad_completions.ioc_comp); |
2366 | bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING; | |
2367 | bna_ioceth_enable(&bnad->bna.ioceth); | |
8b230ed8 RM |
2368 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2369 | ||
078086f3 RM |
2370 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
2371 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); | |
8b230ed8 | 2372 | |
078086f3 | 2373 | err = bnad->bnad_completions.ioc_comp_status; |
8b230ed8 RM |
2374 | |
2375 | return err; | |
2376 | } | |
2377 | ||
2378 | /* Free BNA resources */ | |
2379 | static void | |
078086f3 RM |
2380 | bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info, |
2381 | u32 res_val_max) | |
8b230ed8 RM |
2382 | { |
2383 | int i; | |
8b230ed8 | 2384 | |
078086f3 RM |
2385 | for (i = 0; i < res_val_max; i++) |
2386 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); | |
8b230ed8 RM |
2387 | } |
2388 | ||
2389 | /* Allocates memory and interrupt resources for BNA */ | |
2390 | static int | |
078086f3 RM |
2391 | bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
2392 | u32 res_val_max) | |
8b230ed8 RM |
2393 | { |
2394 | int i, err; | |
8b230ed8 | 2395 | |
078086f3 RM |
2396 | for (i = 0; i < res_val_max; i++) { |
2397 | err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info); | |
8b230ed8 RM |
2398 | if (err) |
2399 | goto err_return; | |
2400 | } | |
2401 | return 0; | |
2402 | ||
2403 | err_return: | |
078086f3 | 2404 | bnad_res_free(bnad, res_info, res_val_max); |
8b230ed8 RM |
2405 | return err; |
2406 | } | |
2407 | ||
2408 | /* Interrupt enable / disable */ | |
2409 | static void | |
2410 | bnad_enable_msix(struct bnad *bnad) | |
2411 | { | |
2412 | int i, ret; | |
8b230ed8 RM |
2413 | unsigned long flags; |
2414 | ||
2415 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2416 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { | |
2417 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2418 | return; | |
2419 | } | |
2420 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2421 | ||
2422 | if (bnad->msix_table) | |
2423 | return; | |
2424 | ||
8b230ed8 | 2425 | bnad->msix_table = |
b7ee31c5 | 2426 | kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL); |
8b230ed8 RM |
2427 | |
2428 | if (!bnad->msix_table) | |
2429 | goto intx_mode; | |
2430 | ||
b7ee31c5 | 2431 | for (i = 0; i < bnad->msix_num; i++) |
8b230ed8 RM |
2432 | bnad->msix_table[i].entry = i; |
2433 | ||
b7ee31c5 | 2434 | ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, bnad->msix_num); |
8b230ed8 RM |
2435 | if (ret > 0) { |
2436 | /* Not enough MSI-X vectors. */ | |
19dbff9f RM |
2437 | pr_warn("BNA: %d MSI-X vectors allocated < %d requested\n", |
2438 | ret, bnad->msix_num); | |
8b230ed8 RM |
2439 | |
2440 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2441 | /* ret = #of vectors that we got */ | |
271e8b79 RM |
2442 | bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2, |
2443 | (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2); | |
8b230ed8 RM |
2444 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2445 | ||
271e8b79 | 2446 | bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP + |
8b230ed8 | 2447 | BNAD_MAILBOX_MSIX_VECTORS; |
8b230ed8 | 2448 | |
078086f3 RM |
2449 | if (bnad->msix_num > ret) |
2450 | goto intx_mode; | |
2451 | ||
8b230ed8 RM |
2452 | /* Try once more with adjusted numbers */ |
2453 | /* If this fails, fall back to INTx */ | |
2454 | ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, | |
b7ee31c5 | 2455 | bnad->msix_num); |
8b230ed8 RM |
2456 | if (ret) |
2457 | goto intx_mode; | |
2458 | ||
2459 | } else if (ret < 0) | |
2460 | goto intx_mode; | |
078086f3 RM |
2461 | |
2462 | pci_intx(bnad->pcidev, 0); | |
2463 | ||
8b230ed8 RM |
2464 | return; |
2465 | ||
2466 | intx_mode: | |
19dbff9f | 2467 | pr_warn("BNA: MSI-X enable failed - operating in INTx mode\n"); |
8b230ed8 RM |
2468 | |
2469 | kfree(bnad->msix_table); | |
2470 | bnad->msix_table = NULL; | |
2471 | bnad->msix_num = 0; | |
8b230ed8 RM |
2472 | spin_lock_irqsave(&bnad->bna_lock, flags); |
2473 | bnad->cfg_flags &= ~BNAD_CF_MSIX; | |
2474 | bnad_q_num_init(bnad); | |
2475 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2476 | } | |
2477 | ||
2478 | static void | |
2479 | bnad_disable_msix(struct bnad *bnad) | |
2480 | { | |
2481 | u32 cfg_flags; | |
2482 | unsigned long flags; | |
2483 | ||
2484 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2485 | cfg_flags = bnad->cfg_flags; | |
2486 | if (bnad->cfg_flags & BNAD_CF_MSIX) | |
2487 | bnad->cfg_flags &= ~BNAD_CF_MSIX; | |
2488 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2489 | ||
2490 | if (cfg_flags & BNAD_CF_MSIX) { | |
2491 | pci_disable_msix(bnad->pcidev); | |
2492 | kfree(bnad->msix_table); | |
2493 | bnad->msix_table = NULL; | |
2494 | } | |
2495 | } | |
2496 | ||
2497 | /* Netdev entry points */ | |
2498 | static int | |
2499 | bnad_open(struct net_device *netdev) | |
2500 | { | |
2501 | int err; | |
2502 | struct bnad *bnad = netdev_priv(netdev); | |
2503 | struct bna_pause_config pause_config; | |
2504 | int mtu; | |
2505 | unsigned long flags; | |
2506 | ||
2507 | mutex_lock(&bnad->conf_mutex); | |
2508 | ||
2509 | /* Tx */ | |
2510 | err = bnad_setup_tx(bnad, 0); | |
2511 | if (err) | |
2512 | goto err_return; | |
2513 | ||
2514 | /* Rx */ | |
2515 | err = bnad_setup_rx(bnad, 0); | |
2516 | if (err) | |
2517 | goto cleanup_tx; | |
2518 | ||
2519 | /* Port */ | |
2520 | pause_config.tx_pause = 0; | |
2521 | pause_config.rx_pause = 0; | |
2522 | ||
078086f3 | 2523 | mtu = ETH_HLEN + VLAN_HLEN + bnad->netdev->mtu + ETH_FCS_LEN; |
8b230ed8 RM |
2524 | |
2525 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
2526 | bna_enet_mtu_set(&bnad->bna.enet, mtu, NULL); |
2527 | bna_enet_pause_config(&bnad->bna.enet, &pause_config, NULL); | |
2528 | bna_enet_enable(&bnad->bna.enet); | |
8b230ed8 RM |
2529 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2530 | ||
2531 | /* Enable broadcast */ | |
2532 | bnad_enable_default_bcast(bnad); | |
2533 | ||
aad75b66 RM |
2534 | /* Restore VLANs, if any */ |
2535 | bnad_restore_vlans(bnad, 0); | |
2536 | ||
8b230ed8 RM |
2537 | /* Set the UCAST address */ |
2538 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2539 | bnad_mac_addr_set_locked(bnad, netdev->dev_addr); | |
2540 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2541 | ||
2542 | /* Start the stats timer */ | |
2543 | bnad_stats_timer_start(bnad); | |
2544 | ||
2545 | mutex_unlock(&bnad->conf_mutex); | |
2546 | ||
2547 | return 0; | |
2548 | ||
2549 | cleanup_tx: | |
2550 | bnad_cleanup_tx(bnad, 0); | |
2551 | ||
2552 | err_return: | |
2553 | mutex_unlock(&bnad->conf_mutex); | |
2554 | return err; | |
2555 | } | |
2556 | ||
2557 | static int | |
2558 | bnad_stop(struct net_device *netdev) | |
2559 | { | |
2560 | struct bnad *bnad = netdev_priv(netdev); | |
2561 | unsigned long flags; | |
2562 | ||
2563 | mutex_lock(&bnad->conf_mutex); | |
2564 | ||
2565 | /* Stop the stats timer */ | |
2566 | bnad_stats_timer_stop(bnad); | |
2567 | ||
078086f3 | 2568 | init_completion(&bnad->bnad_completions.enet_comp); |
8b230ed8 RM |
2569 | |
2570 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
2571 | bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP, |
2572 | bnad_cb_enet_disabled); | |
8b230ed8 RM |
2573 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2574 | ||
078086f3 | 2575 | wait_for_completion(&bnad->bnad_completions.enet_comp); |
8b230ed8 RM |
2576 | |
2577 | bnad_cleanup_tx(bnad, 0); | |
2578 | bnad_cleanup_rx(bnad, 0); | |
2579 | ||
2580 | /* Synchronize mailbox IRQ */ | |
2581 | bnad_mbox_irq_sync(bnad); | |
2582 | ||
2583 | mutex_unlock(&bnad->conf_mutex); | |
2584 | ||
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | /* TX */ | |
2589 | /* | |
2590 | * bnad_start_xmit : Netdev entry point for Transmit | |
2591 | * Called under lock held by net_device | |
2592 | */ | |
2593 | static netdev_tx_t | |
2594 | bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) | |
2595 | { | |
2596 | struct bnad *bnad = netdev_priv(netdev); | |
078086f3 RM |
2597 | u32 txq_id = 0; |
2598 | struct bna_tcb *tcb = bnad->tx_info[0].tcb[txq_id]; | |
8b230ed8 | 2599 | |
0120b99c RM |
2600 | u16 txq_prod, vlan_tag = 0; |
2601 | u32 unmap_prod, wis, wis_used, wi_range; | |
2602 | u32 vectors, vect_id, i, acked; | |
0120b99c | 2603 | int err; |
271e8b79 RM |
2604 | unsigned int len; |
2605 | u32 gso_size; | |
8b230ed8 | 2606 | |
078086f3 | 2607 | struct bnad_unmap_q *unmap_q = tcb->unmap_q; |
0120b99c | 2608 | dma_addr_t dma_addr; |
8b230ed8 | 2609 | struct bna_txq_entry *txqent; |
078086f3 | 2610 | u16 flags; |
8b230ed8 | 2611 | |
271e8b79 RM |
2612 | if (unlikely(skb->len <= ETH_HLEN)) { |
2613 | dev_kfree_skb(skb); | |
2614 | BNAD_UPDATE_CTR(bnad, tx_skb_too_short); | |
2615 | return NETDEV_TX_OK; | |
2616 | } | |
2617 | if (unlikely(skb_headlen(skb) > BFI_TX_MAX_DATA_PER_VECTOR)) { | |
8b230ed8 | 2618 | dev_kfree_skb(skb); |
271e8b79 RM |
2619 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_too_long); |
2620 | return NETDEV_TX_OK; | |
2621 | } | |
2622 | if (unlikely(skb_headlen(skb) == 0)) { | |
2623 | dev_kfree_skb(skb); | |
2624 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero); | |
8b230ed8 RM |
2625 | return NETDEV_TX_OK; |
2626 | } | |
2627 | ||
2628 | /* | |
2629 | * Takes care of the Tx that is scheduled between clearing the flag | |
19dbff9f | 2630 | * and the netif_tx_stop_all_queues() call. |
8b230ed8 | 2631 | */ |
be7fa326 | 2632 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) { |
8b230ed8 | 2633 | dev_kfree_skb(skb); |
271e8b79 | 2634 | BNAD_UPDATE_CTR(bnad, tx_skb_stopping); |
8b230ed8 RM |
2635 | return NETDEV_TX_OK; |
2636 | } | |
2637 | ||
8b230ed8 | 2638 | vectors = 1 + skb_shinfo(skb)->nr_frags; |
271e8b79 | 2639 | if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) { |
8b230ed8 | 2640 | dev_kfree_skb(skb); |
271e8b79 | 2641 | BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors); |
8b230ed8 RM |
2642 | return NETDEV_TX_OK; |
2643 | } | |
2644 | wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */ | |
2645 | acked = 0; | |
078086f3 RM |
2646 | if (unlikely(wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) || |
2647 | vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) { | |
8b230ed8 RM |
2648 | if ((u16) (*tcb->hw_consumer_index) != |
2649 | tcb->consumer_index && | |
2650 | !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { | |
2651 | acked = bnad_free_txbufs(bnad, tcb); | |
be7fa326 RM |
2652 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
2653 | bna_ib_ack(tcb->i_dbell, acked); | |
8b230ed8 RM |
2654 | smp_mb__before_clear_bit(); |
2655 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); | |
2656 | } else { | |
2657 | netif_stop_queue(netdev); | |
2658 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); | |
2659 | } | |
2660 | ||
2661 | smp_mb(); | |
2662 | /* | |
2663 | * Check again to deal with race condition between | |
2664 | * netif_stop_queue here, and netif_wake_queue in | |
2665 | * interrupt handler which is not inside netif tx lock. | |
2666 | */ | |
2667 | if (likely | |
2668 | (wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) || | |
2669 | vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) { | |
2670 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); | |
2671 | return NETDEV_TX_BUSY; | |
2672 | } else { | |
2673 | netif_wake_queue(netdev); | |
2674 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); | |
2675 | } | |
2676 | } | |
2677 | ||
2678 | unmap_prod = unmap_q->producer_index; | |
8b230ed8 RM |
2679 | flags = 0; |
2680 | ||
2681 | txq_prod = tcb->producer_index; | |
2682 | BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt, txqent, wi_range); | |
8b230ed8 RM |
2683 | txqent->hdr.wi.reserved = 0; |
2684 | txqent->hdr.wi.num_vectors = vectors; | |
8b230ed8 | 2685 | |
eab6d18d | 2686 | if (vlan_tx_tag_present(skb)) { |
8b230ed8 RM |
2687 | vlan_tag = (u16) vlan_tx_tag_get(skb); |
2688 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); | |
2689 | } | |
2690 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) { | |
2691 | vlan_tag = | |
2692 | (tcb->priority & 0x7) << 13 | (vlan_tag & 0x1fff); | |
2693 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); | |
2694 | } | |
2695 | ||
2696 | txqent->hdr.wi.vlan_tag = htons(vlan_tag); | |
2697 | ||
2698 | if (skb_is_gso(skb)) { | |
271e8b79 RM |
2699 | gso_size = skb_shinfo(skb)->gso_size; |
2700 | ||
2701 | if (unlikely(gso_size > netdev->mtu)) { | |
2702 | dev_kfree_skb(skb); | |
2703 | BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long); | |
2704 | return NETDEV_TX_OK; | |
2705 | } | |
2706 | if (unlikely((gso_size + skb_transport_offset(skb) + | |
2707 | tcp_hdrlen(skb)) >= skb->len)) { | |
2708 | txqent->hdr.wi.opcode = | |
2709 | __constant_htons(BNA_TXQ_WI_SEND); | |
2710 | txqent->hdr.wi.lso_mss = 0; | |
2711 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short); | |
2712 | } else { | |
2713 | txqent->hdr.wi.opcode = | |
2714 | __constant_htons(BNA_TXQ_WI_SEND_LSO); | |
2715 | txqent->hdr.wi.lso_mss = htons(gso_size); | |
2716 | } | |
2717 | ||
8b230ed8 | 2718 | err = bnad_tso_prepare(bnad, skb); |
271e8b79 | 2719 | if (unlikely(err)) { |
8b230ed8 | 2720 | dev_kfree_skb(skb); |
271e8b79 | 2721 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare); |
8b230ed8 RM |
2722 | return NETDEV_TX_OK; |
2723 | } | |
8b230ed8 RM |
2724 | flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM); |
2725 | txqent->hdr.wi.l4_hdr_size_n_offset = | |
2726 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET | |
2727 | (tcp_hdrlen(skb) >> 2, | |
2728 | skb_transport_offset(skb))); | |
271e8b79 RM |
2729 | } else { |
2730 | txqent->hdr.wi.opcode = __constant_htons(BNA_TXQ_WI_SEND); | |
8b230ed8 RM |
2731 | txqent->hdr.wi.lso_mss = 0; |
2732 | ||
271e8b79 RM |
2733 | if (unlikely(skb->len > (netdev->mtu + ETH_HLEN))) { |
2734 | dev_kfree_skb(skb); | |
2735 | BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long); | |
2736 | return NETDEV_TX_OK; | |
8b230ed8 | 2737 | } |
8b230ed8 | 2738 | |
271e8b79 RM |
2739 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
2740 | u8 proto = 0; | |
8b230ed8 | 2741 | |
271e8b79 RM |
2742 | if (skb->protocol == __constant_htons(ETH_P_IP)) |
2743 | proto = ip_hdr(skb)->protocol; | |
2744 | else if (skb->protocol == | |
2745 | __constant_htons(ETH_P_IPV6)) { | |
2746 | /* nexthdr may not be TCP immediately. */ | |
2747 | proto = ipv6_hdr(skb)->nexthdr; | |
2748 | } | |
2749 | if (proto == IPPROTO_TCP) { | |
2750 | flags |= BNA_TXQ_WI_CF_TCP_CKSUM; | |
2751 | txqent->hdr.wi.l4_hdr_size_n_offset = | |
2752 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET | |
2753 | (0, skb_transport_offset(skb))); | |
2754 | ||
2755 | BNAD_UPDATE_CTR(bnad, tcpcsum_offload); | |
2756 | ||
2757 | if (unlikely(skb_headlen(skb) < | |
2758 | skb_transport_offset(skb) + tcp_hdrlen(skb))) { | |
2759 | dev_kfree_skb(skb); | |
2760 | BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr); | |
2761 | return NETDEV_TX_OK; | |
2762 | } | |
8b230ed8 | 2763 | |
271e8b79 RM |
2764 | } else if (proto == IPPROTO_UDP) { |
2765 | flags |= BNA_TXQ_WI_CF_UDP_CKSUM; | |
2766 | txqent->hdr.wi.l4_hdr_size_n_offset = | |
2767 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET | |
2768 | (0, skb_transport_offset(skb))); | |
2769 | ||
2770 | BNAD_UPDATE_CTR(bnad, udpcsum_offload); | |
2771 | if (unlikely(skb_headlen(skb) < | |
2772 | skb_transport_offset(skb) + | |
2773 | sizeof(struct udphdr))) { | |
2774 | dev_kfree_skb(skb); | |
2775 | BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr); | |
2776 | return NETDEV_TX_OK; | |
2777 | } | |
2778 | } else { | |
8b230ed8 | 2779 | dev_kfree_skb(skb); |
271e8b79 | 2780 | BNAD_UPDATE_CTR(bnad, tx_skb_csum_err); |
8b230ed8 RM |
2781 | return NETDEV_TX_OK; |
2782 | } | |
271e8b79 RM |
2783 | } else { |
2784 | txqent->hdr.wi.l4_hdr_size_n_offset = 0; | |
8b230ed8 | 2785 | } |
8b230ed8 RM |
2786 | } |
2787 | ||
2788 | txqent->hdr.wi.flags = htons(flags); | |
2789 | ||
2790 | txqent->hdr.wi.frame_length = htonl(skb->len); | |
2791 | ||
2792 | unmap_q->unmap_array[unmap_prod].skb = skb; | |
271e8b79 RM |
2793 | len = skb_headlen(skb); |
2794 | txqent->vector[0].length = htons(len); | |
5ea74318 IV |
2795 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
2796 | skb_headlen(skb), DMA_TO_DEVICE); | |
2797 | dma_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr, | |
8b230ed8 RM |
2798 | dma_addr); |
2799 | ||
271e8b79 | 2800 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr); |
8b230ed8 RM |
2801 | BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth); |
2802 | ||
271e8b79 RM |
2803 | vect_id = 0; |
2804 | wis_used = 1; | |
2805 | ||
8b230ed8 | 2806 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
9e903e08 ED |
2807 | const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; |
2808 | u16 size = skb_frag_size(frag); | |
8b230ed8 | 2809 | |
271e8b79 RM |
2810 | if (unlikely(size == 0)) { |
2811 | unmap_prod = unmap_q->producer_index; | |
2812 | ||
2813 | unmap_prod = bnad_pci_unmap_skb(&bnad->pcidev->dev, | |
2814 | unmap_q->unmap_array, | |
2815 | unmap_prod, unmap_q->q_depth, skb, | |
2816 | i); | |
2817 | dev_kfree_skb(skb); | |
2818 | BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero); | |
2819 | return NETDEV_TX_OK; | |
2820 | } | |
2821 | ||
2822 | len += size; | |
2823 | ||
8b230ed8 RM |
2824 | if (++vect_id == BFI_TX_MAX_VECTORS_PER_WI) { |
2825 | vect_id = 0; | |
2826 | if (--wi_range) | |
2827 | txqent++; | |
2828 | else { | |
2829 | BNA_QE_INDX_ADD(txq_prod, wis_used, | |
2830 | tcb->q_depth); | |
2831 | wis_used = 0; | |
2832 | BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt, | |
2833 | txqent, wi_range); | |
8b230ed8 RM |
2834 | } |
2835 | wis_used++; | |
271e8b79 RM |
2836 | txqent->hdr.wi_ext.opcode = |
2837 | __constant_htons(BNA_TXQ_WI_EXTENSION); | |
8b230ed8 RM |
2838 | } |
2839 | ||
2840 | BUG_ON(!(size <= BFI_TX_MAX_DATA_PER_VECTOR)); | |
2841 | txqent->vector[vect_id].length = htons(size); | |
4d5b1a67 IC |
2842 | dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag, |
2843 | 0, size, DMA_TO_DEVICE); | |
5ea74318 | 2844 | dma_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr, |
8b230ed8 RM |
2845 | dma_addr); |
2846 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr); | |
2847 | BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth); | |
2848 | } | |
2849 | ||
271e8b79 RM |
2850 | if (unlikely(len != skb->len)) { |
2851 | unmap_prod = unmap_q->producer_index; | |
2852 | ||
2853 | unmap_prod = bnad_pci_unmap_skb(&bnad->pcidev->dev, | |
2854 | unmap_q->unmap_array, unmap_prod, | |
2855 | unmap_q->q_depth, skb, | |
2856 | skb_shinfo(skb)->nr_frags); | |
2857 | dev_kfree_skb(skb); | |
2858 | BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch); | |
2859 | return NETDEV_TX_OK; | |
2860 | } | |
2861 | ||
8b230ed8 RM |
2862 | unmap_q->producer_index = unmap_prod; |
2863 | BNA_QE_INDX_ADD(txq_prod, wis_used, tcb->q_depth); | |
2864 | tcb->producer_index = txq_prod; | |
2865 | ||
2866 | smp_mb(); | |
be7fa326 RM |
2867 | |
2868 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) | |
2869 | return NETDEV_TX_OK; | |
2870 | ||
8b230ed8 | 2871 | bna_txq_prod_indx_doorbell(tcb); |
271e8b79 | 2872 | smp_mb(); |
8b230ed8 RM |
2873 | |
2874 | if ((u16) (*tcb->hw_consumer_index) != tcb->consumer_index) | |
2875 | tasklet_schedule(&bnad->tx_free_tasklet); | |
2876 | ||
2877 | return NETDEV_TX_OK; | |
2878 | } | |
2879 | ||
2880 | /* | |
2881 | * Used spin_lock to synchronize reading of stats structures, which | |
2882 | * is written by BNA under the same lock. | |
2883 | */ | |
250e061e ED |
2884 | static struct rtnl_link_stats64 * |
2885 | bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) | |
8b230ed8 RM |
2886 | { |
2887 | struct bnad *bnad = netdev_priv(netdev); | |
2888 | unsigned long flags; | |
2889 | ||
2890 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2891 | ||
250e061e ED |
2892 | bnad_netdev_qstats_fill(bnad, stats); |
2893 | bnad_netdev_hwstats_fill(bnad, stats); | |
8b230ed8 RM |
2894 | |
2895 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2896 | ||
250e061e | 2897 | return stats; |
8b230ed8 RM |
2898 | } |
2899 | ||
a2122d95 | 2900 | void |
8b230ed8 RM |
2901 | bnad_set_rx_mode(struct net_device *netdev) |
2902 | { | |
2903 | struct bnad *bnad = netdev_priv(netdev); | |
2904 | u32 new_mask, valid_mask; | |
2905 | unsigned long flags; | |
2906 | ||
2907 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2908 | ||
2909 | new_mask = valid_mask = 0; | |
2910 | ||
2911 | if (netdev->flags & IFF_PROMISC) { | |
2912 | if (!(bnad->cfg_flags & BNAD_CF_PROMISC)) { | |
2913 | new_mask = BNAD_RXMODE_PROMISC_DEFAULT; | |
2914 | valid_mask = BNAD_RXMODE_PROMISC_DEFAULT; | |
2915 | bnad->cfg_flags |= BNAD_CF_PROMISC; | |
2916 | } | |
2917 | } else { | |
2918 | if (bnad->cfg_flags & BNAD_CF_PROMISC) { | |
2919 | new_mask = ~BNAD_RXMODE_PROMISC_DEFAULT; | |
2920 | valid_mask = BNAD_RXMODE_PROMISC_DEFAULT; | |
2921 | bnad->cfg_flags &= ~BNAD_CF_PROMISC; | |
2922 | } | |
2923 | } | |
2924 | ||
2925 | if (netdev->flags & IFF_ALLMULTI) { | |
2926 | if (!(bnad->cfg_flags & BNAD_CF_ALLMULTI)) { | |
2927 | new_mask |= BNA_RXMODE_ALLMULTI; | |
2928 | valid_mask |= BNA_RXMODE_ALLMULTI; | |
2929 | bnad->cfg_flags |= BNAD_CF_ALLMULTI; | |
2930 | } | |
2931 | } else { | |
2932 | if (bnad->cfg_flags & BNAD_CF_ALLMULTI) { | |
2933 | new_mask &= ~BNA_RXMODE_ALLMULTI; | |
2934 | valid_mask |= BNA_RXMODE_ALLMULTI; | |
2935 | bnad->cfg_flags &= ~BNAD_CF_ALLMULTI; | |
2936 | } | |
2937 | } | |
2938 | ||
271e8b79 RM |
2939 | if (bnad->rx_info[0].rx == NULL) |
2940 | goto unlock; | |
2941 | ||
8b230ed8 RM |
2942 | bna_rx_mode_set(bnad->rx_info[0].rx, new_mask, valid_mask, NULL); |
2943 | ||
2944 | if (!netdev_mc_empty(netdev)) { | |
2945 | u8 *mcaddr_list; | |
2946 | int mc_count = netdev_mc_count(netdev); | |
2947 | ||
2948 | /* Index 0 holds the broadcast address */ | |
2949 | mcaddr_list = | |
2950 | kzalloc((mc_count + 1) * ETH_ALEN, | |
2951 | GFP_ATOMIC); | |
2952 | if (!mcaddr_list) | |
ca1cef3a | 2953 | goto unlock; |
8b230ed8 RM |
2954 | |
2955 | memcpy(&mcaddr_list[0], &bnad_bcast_addr[0], ETH_ALEN); | |
2956 | ||
2957 | /* Copy rest of the MC addresses */ | |
2958 | bnad_netdev_mc_list_get(netdev, mcaddr_list); | |
2959 | ||
2960 | bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1, | |
2961 | mcaddr_list, NULL); | |
2962 | ||
2963 | /* Should we enable BNAD_CF_ALLMULTI for err != 0 ? */ | |
2964 | kfree(mcaddr_list); | |
2965 | } | |
ca1cef3a | 2966 | unlock: |
8b230ed8 RM |
2967 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
2968 | } | |
2969 | ||
2970 | /* | |
2971 | * bna_lock is used to sync writes to netdev->addr | |
2972 | * conf_lock cannot be used since this call may be made | |
2973 | * in a non-blocking context. | |
2974 | */ | |
2975 | static int | |
2976 | bnad_set_mac_address(struct net_device *netdev, void *mac_addr) | |
2977 | { | |
2978 | int err; | |
2979 | struct bnad *bnad = netdev_priv(netdev); | |
2980 | struct sockaddr *sa = (struct sockaddr *)mac_addr; | |
2981 | unsigned long flags; | |
2982 | ||
2983 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
2984 | ||
2985 | err = bnad_mac_addr_set_locked(bnad, sa->sa_data); | |
2986 | ||
2987 | if (!err) | |
2988 | memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len); | |
2989 | ||
2990 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
2991 | ||
2992 | return err; | |
2993 | } | |
2994 | ||
2995 | static int | |
078086f3 | 2996 | bnad_mtu_set(struct bnad *bnad, int mtu) |
8b230ed8 | 2997 | { |
8b230ed8 RM |
2998 | unsigned long flags; |
2999 | ||
078086f3 RM |
3000 | init_completion(&bnad->bnad_completions.mtu_comp); |
3001 | ||
3002 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3003 | bna_enet_mtu_set(&bnad->bna.enet, mtu, bnad_cb_enet_mtu_set); | |
3004 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3005 | ||
3006 | wait_for_completion(&bnad->bnad_completions.mtu_comp); | |
3007 | ||
3008 | return bnad->bnad_completions.mtu_comp_status; | |
3009 | } | |
3010 | ||
3011 | static int | |
3012 | bnad_change_mtu(struct net_device *netdev, int new_mtu) | |
3013 | { | |
3014 | int err, mtu = netdev->mtu; | |
8b230ed8 RM |
3015 | struct bnad *bnad = netdev_priv(netdev); |
3016 | ||
3017 | if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU) | |
3018 | return -EINVAL; | |
3019 | ||
3020 | mutex_lock(&bnad->conf_mutex); | |
3021 | ||
3022 | netdev->mtu = new_mtu; | |
3023 | ||
078086f3 RM |
3024 | mtu = ETH_HLEN + VLAN_HLEN + new_mtu + ETH_FCS_LEN; |
3025 | err = bnad_mtu_set(bnad, mtu); | |
3026 | if (err) | |
3027 | err = -EBUSY; | |
8b230ed8 RM |
3028 | |
3029 | mutex_unlock(&bnad->conf_mutex); | |
3030 | return err; | |
3031 | } | |
3032 | ||
8e586137 | 3033 | static int |
8b230ed8 RM |
3034 | bnad_vlan_rx_add_vid(struct net_device *netdev, |
3035 | unsigned short vid) | |
3036 | { | |
3037 | struct bnad *bnad = netdev_priv(netdev); | |
3038 | unsigned long flags; | |
3039 | ||
3040 | if (!bnad->rx_info[0].rx) | |
8e586137 | 3041 | return 0; |
8b230ed8 RM |
3042 | |
3043 | mutex_lock(&bnad->conf_mutex); | |
3044 | ||
3045 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3046 | bna_rx_vlan_add(bnad->rx_info[0].rx, vid); | |
f859d7cb | 3047 | set_bit(vid, bnad->active_vlans); |
8b230ed8 RM |
3048 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
3049 | ||
3050 | mutex_unlock(&bnad->conf_mutex); | |
8e586137 JP |
3051 | |
3052 | return 0; | |
8b230ed8 RM |
3053 | } |
3054 | ||
8e586137 | 3055 | static int |
8b230ed8 RM |
3056 | bnad_vlan_rx_kill_vid(struct net_device *netdev, |
3057 | unsigned short vid) | |
3058 | { | |
3059 | struct bnad *bnad = netdev_priv(netdev); | |
3060 | unsigned long flags; | |
3061 | ||
3062 | if (!bnad->rx_info[0].rx) | |
8e586137 | 3063 | return 0; |
8b230ed8 RM |
3064 | |
3065 | mutex_lock(&bnad->conf_mutex); | |
3066 | ||
3067 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
f859d7cb | 3068 | clear_bit(vid, bnad->active_vlans); |
8b230ed8 RM |
3069 | bna_rx_vlan_del(bnad->rx_info[0].rx, vid); |
3070 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3071 | ||
3072 | mutex_unlock(&bnad->conf_mutex); | |
8e586137 JP |
3073 | |
3074 | return 0; | |
8b230ed8 RM |
3075 | } |
3076 | ||
3077 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3078 | static void | |
3079 | bnad_netpoll(struct net_device *netdev) | |
3080 | { | |
3081 | struct bnad *bnad = netdev_priv(netdev); | |
3082 | struct bnad_rx_info *rx_info; | |
3083 | struct bnad_rx_ctrl *rx_ctrl; | |
3084 | u32 curr_mask; | |
3085 | int i, j; | |
3086 | ||
3087 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { | |
3088 | bna_intx_disable(&bnad->bna, curr_mask); | |
3089 | bnad_isr(bnad->pcidev->irq, netdev); | |
3090 | bna_intx_enable(&bnad->bna, curr_mask); | |
3091 | } else { | |
19dbff9f RM |
3092 | /* |
3093 | * Tx processing may happen in sending context, so no need | |
3094 | * to explicitly process completions here | |
3095 | */ | |
3096 | ||
3097 | /* Rx processing */ | |
8b230ed8 RM |
3098 | for (i = 0; i < bnad->num_rx; i++) { |
3099 | rx_info = &bnad->rx_info[i]; | |
3100 | if (!rx_info->rx) | |
3101 | continue; | |
3102 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { | |
3103 | rx_ctrl = &rx_info->rx_ctrl[j]; | |
271e8b79 | 3104 | if (rx_ctrl->ccb) |
8b230ed8 RM |
3105 | bnad_netif_rx_schedule_poll(bnad, |
3106 | rx_ctrl->ccb); | |
8b230ed8 RM |
3107 | } |
3108 | } | |
3109 | } | |
3110 | } | |
3111 | #endif | |
3112 | ||
3113 | static const struct net_device_ops bnad_netdev_ops = { | |
3114 | .ndo_open = bnad_open, | |
3115 | .ndo_stop = bnad_stop, | |
3116 | .ndo_start_xmit = bnad_start_xmit, | |
250e061e | 3117 | .ndo_get_stats64 = bnad_get_stats64, |
8b230ed8 | 3118 | .ndo_set_rx_mode = bnad_set_rx_mode, |
8b230ed8 RM |
3119 | .ndo_validate_addr = eth_validate_addr, |
3120 | .ndo_set_mac_address = bnad_set_mac_address, | |
3121 | .ndo_change_mtu = bnad_change_mtu, | |
8b230ed8 RM |
3122 | .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid, |
3123 | .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid, | |
3124 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3125 | .ndo_poll_controller = bnad_netpoll | |
3126 | #endif | |
3127 | }; | |
3128 | ||
3129 | static void | |
3130 | bnad_netdev_init(struct bnad *bnad, bool using_dac) | |
3131 | { | |
3132 | struct net_device *netdev = bnad->netdev; | |
3133 | ||
e5ee20e7 MM |
3134 | netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | |
3135 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
3136 | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_TX; | |
8b230ed8 | 3137 | |
e5ee20e7 MM |
3138 | netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA | |
3139 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
3140 | NETIF_F_TSO | NETIF_F_TSO6; | |
8b230ed8 | 3141 | |
e5ee20e7 MM |
3142 | netdev->features |= netdev->hw_features | |
3143 | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; | |
8b230ed8 RM |
3144 | |
3145 | if (using_dac) | |
3146 | netdev->features |= NETIF_F_HIGHDMA; | |
3147 | ||
8b230ed8 RM |
3148 | netdev->mem_start = bnad->mmio_start; |
3149 | netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1; | |
3150 | ||
3151 | netdev->netdev_ops = &bnad_netdev_ops; | |
3152 | bnad_set_ethtool_ops(netdev); | |
3153 | } | |
3154 | ||
3155 | /* | |
3156 | * 1. Initialize the bnad structure | |
3157 | * 2. Setup netdev pointer in pci_dev | |
3158 | * 3. Initialze Tx free tasklet | |
3159 | * 4. Initialize no. of TxQ & CQs & MSIX vectors | |
01b54b14 | 3160 | * 5. Initialize work queue. |
8b230ed8 RM |
3161 | */ |
3162 | static int | |
3163 | bnad_init(struct bnad *bnad, | |
3164 | struct pci_dev *pdev, struct net_device *netdev) | |
3165 | { | |
3166 | unsigned long flags; | |
3167 | ||
3168 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
3169 | pci_set_drvdata(pdev, netdev); | |
3170 | ||
3171 | bnad->netdev = netdev; | |
3172 | bnad->pcidev = pdev; | |
3173 | bnad->mmio_start = pci_resource_start(pdev, 0); | |
3174 | bnad->mmio_len = pci_resource_len(pdev, 0); | |
3175 | bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len); | |
3176 | if (!bnad->bar0) { | |
3177 | dev_err(&pdev->dev, "ioremap for bar0 failed\n"); | |
3178 | pci_set_drvdata(pdev, NULL); | |
3179 | return -ENOMEM; | |
3180 | } | |
3181 | pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0, | |
3182 | (unsigned long long) bnad->mmio_len); | |
3183 | ||
3184 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3185 | if (!bnad_msix_disable) | |
3186 | bnad->cfg_flags = BNAD_CF_MSIX; | |
3187 | ||
3188 | bnad->cfg_flags |= BNAD_CF_DIM_ENABLED; | |
3189 | ||
3190 | bnad_q_num_init(bnad); | |
3191 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3192 | ||
3193 | bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) + | |
3194 | (bnad->num_rx * bnad->num_rxp_per_rx) + | |
3195 | BNAD_MAILBOX_MSIX_VECTORS; | |
8b230ed8 RM |
3196 | |
3197 | bnad->txq_depth = BNAD_TXQ_DEPTH; | |
3198 | bnad->rxq_depth = BNAD_RXQ_DEPTH; | |
8b230ed8 RM |
3199 | |
3200 | bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO; | |
3201 | bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO; | |
3202 | ||
3203 | tasklet_init(&bnad->tx_free_tasklet, bnad_tx_free_tasklet, | |
3204 | (unsigned long)bnad); | |
3205 | ||
01b54b14 JH |
3206 | sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id); |
3207 | bnad->work_q = create_singlethread_workqueue(bnad->wq_name); | |
3208 | ||
3209 | if (!bnad->work_q) | |
3210 | return -ENOMEM; | |
3211 | ||
8b230ed8 RM |
3212 | return 0; |
3213 | } | |
3214 | ||
3215 | /* | |
3216 | * Must be called after bnad_pci_uninit() | |
3217 | * so that iounmap() and pci_set_drvdata(NULL) | |
3218 | * happens only after PCI uninitialization. | |
3219 | */ | |
3220 | static void | |
3221 | bnad_uninit(struct bnad *bnad) | |
3222 | { | |
01b54b14 JH |
3223 | if (bnad->work_q) { |
3224 | flush_workqueue(bnad->work_q); | |
3225 | destroy_workqueue(bnad->work_q); | |
3226 | bnad->work_q = NULL; | |
3227 | } | |
3228 | ||
8b230ed8 RM |
3229 | if (bnad->bar0) |
3230 | iounmap(bnad->bar0); | |
3231 | pci_set_drvdata(bnad->pcidev, NULL); | |
3232 | } | |
3233 | ||
3234 | /* | |
3235 | * Initialize locks | |
078086f3 | 3236 | a) Per ioceth mutes used for serializing configuration |
8b230ed8 RM |
3237 | changes from OS interface |
3238 | b) spin lock used to protect bna state machine | |
3239 | */ | |
3240 | static void | |
3241 | bnad_lock_init(struct bnad *bnad) | |
3242 | { | |
3243 | spin_lock_init(&bnad->bna_lock); | |
3244 | mutex_init(&bnad->conf_mutex); | |
72a9730b | 3245 | mutex_init(&bnad_list_mutex); |
8b230ed8 RM |
3246 | } |
3247 | ||
3248 | static void | |
3249 | bnad_lock_uninit(struct bnad *bnad) | |
3250 | { | |
3251 | mutex_destroy(&bnad->conf_mutex); | |
72a9730b | 3252 | mutex_destroy(&bnad_list_mutex); |
8b230ed8 RM |
3253 | } |
3254 | ||
3255 | /* PCI Initialization */ | |
3256 | static int | |
3257 | bnad_pci_init(struct bnad *bnad, | |
3258 | struct pci_dev *pdev, bool *using_dac) | |
3259 | { | |
3260 | int err; | |
3261 | ||
3262 | err = pci_enable_device(pdev); | |
3263 | if (err) | |
3264 | return err; | |
3265 | err = pci_request_regions(pdev, BNAD_NAME); | |
3266 | if (err) | |
3267 | goto disable_device; | |
5ea74318 IV |
3268 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
3269 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { | |
3db1cd5c | 3270 | *using_dac = true; |
8b230ed8 | 3271 | } else { |
5ea74318 | 3272 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
8b230ed8 | 3273 | if (err) { |
5ea74318 IV |
3274 | err = dma_set_coherent_mask(&pdev->dev, |
3275 | DMA_BIT_MASK(32)); | |
8b230ed8 RM |
3276 | if (err) |
3277 | goto release_regions; | |
3278 | } | |
3db1cd5c | 3279 | *using_dac = false; |
8b230ed8 RM |
3280 | } |
3281 | pci_set_master(pdev); | |
3282 | return 0; | |
3283 | ||
3284 | release_regions: | |
3285 | pci_release_regions(pdev); | |
3286 | disable_device: | |
3287 | pci_disable_device(pdev); | |
3288 | ||
3289 | return err; | |
3290 | } | |
3291 | ||
3292 | static void | |
3293 | bnad_pci_uninit(struct pci_dev *pdev) | |
3294 | { | |
3295 | pci_release_regions(pdev); | |
3296 | pci_disable_device(pdev); | |
3297 | } | |
3298 | ||
3299 | static int __devinit | |
3300 | bnad_pci_probe(struct pci_dev *pdev, | |
3301 | const struct pci_device_id *pcidev_id) | |
3302 | { | |
3caa1e95 | 3303 | bool using_dac; |
0120b99c | 3304 | int err; |
8b230ed8 RM |
3305 | struct bnad *bnad; |
3306 | struct bna *bna; | |
3307 | struct net_device *netdev; | |
3308 | struct bfa_pcidev pcidev_info; | |
3309 | unsigned long flags; | |
3310 | ||
3311 | pr_info("bnad_pci_probe : (0x%p, 0x%p) PCI Func : (%d)\n", | |
3312 | pdev, pcidev_id, PCI_FUNC(pdev->devfn)); | |
3313 | ||
3314 | mutex_lock(&bnad_fwimg_mutex); | |
3315 | if (!cna_get_firmware_buf(pdev)) { | |
3316 | mutex_unlock(&bnad_fwimg_mutex); | |
3317 | pr_warn("Failed to load Firmware Image!\n"); | |
3318 | return -ENODEV; | |
3319 | } | |
3320 | mutex_unlock(&bnad_fwimg_mutex); | |
3321 | ||
3322 | /* | |
3323 | * Allocates sizeof(struct net_device + struct bnad) | |
3324 | * bnad = netdev->priv | |
3325 | */ | |
3326 | netdev = alloc_etherdev(sizeof(struct bnad)); | |
3327 | if (!netdev) { | |
8b230ed8 RM |
3328 | err = -ENOMEM; |
3329 | return err; | |
3330 | } | |
3331 | bnad = netdev_priv(netdev); | |
078086f3 | 3332 | bnad_lock_init(bnad); |
72a9730b | 3333 | bnad_add_to_list(bnad); |
078086f3 RM |
3334 | |
3335 | mutex_lock(&bnad->conf_mutex); | |
8b230ed8 RM |
3336 | /* |
3337 | * PCI initialization | |
0120b99c | 3338 | * Output : using_dac = 1 for 64 bit DMA |
be7fa326 | 3339 | * = 0 for 32 bit DMA |
8b230ed8 RM |
3340 | */ |
3341 | err = bnad_pci_init(bnad, pdev, &using_dac); | |
3342 | if (err) | |
44861f44 | 3343 | goto unlock_mutex; |
8b230ed8 | 3344 | |
8b230ed8 RM |
3345 | /* |
3346 | * Initialize bnad structure | |
3347 | * Setup relation between pci_dev & netdev | |
3348 | * Init Tx free tasklet | |
3349 | */ | |
3350 | err = bnad_init(bnad, pdev, netdev); | |
3351 | if (err) | |
3352 | goto pci_uninit; | |
078086f3 | 3353 | |
8b230ed8 RM |
3354 | /* Initialize netdev structure, set up ethtool ops */ |
3355 | bnad_netdev_init(bnad, using_dac); | |
3356 | ||
815f41e7 RM |
3357 | /* Set link to down state */ |
3358 | netif_carrier_off(netdev); | |
3359 | ||
7afc5dbd KG |
3360 | /* Setup the debugfs node for this bfad */ |
3361 | if (bna_debugfs_enable) | |
3362 | bnad_debugfs_init(bnad); | |
3363 | ||
8b230ed8 | 3364 | /* Get resource requirement form bna */ |
078086f3 | 3365 | spin_lock_irqsave(&bnad->bna_lock, flags); |
8b230ed8 | 3366 | bna_res_req(&bnad->res_info[0]); |
078086f3 | 3367 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
8b230ed8 RM |
3368 | |
3369 | /* Allocate resources from bna */ | |
078086f3 | 3370 | err = bnad_res_alloc(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
8b230ed8 | 3371 | if (err) |
078086f3 | 3372 | goto drv_uninit; |
8b230ed8 RM |
3373 | |
3374 | bna = &bnad->bna; | |
3375 | ||
3376 | /* Setup pcidev_info for bna_init() */ | |
3377 | pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn); | |
3378 | pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn); | |
3379 | pcidev_info.device_id = bnad->pcidev->device; | |
3380 | pcidev_info.pci_bar_kva = bnad->bar0; | |
3381 | ||
8b230ed8 RM |
3382 | spin_lock_irqsave(&bnad->bna_lock, flags); |
3383 | bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]); | |
8b230ed8 RM |
3384 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
3385 | ||
3386 | bnad->stats.bna_stats = &bna->stats; | |
3387 | ||
078086f3 RM |
3388 | bnad_enable_msix(bnad); |
3389 | err = bnad_mbox_irq_alloc(bnad); | |
3390 | if (err) | |
3391 | goto res_free; | |
3392 | ||
3393 | ||
8b230ed8 | 3394 | /* Set up timers */ |
078086f3 | 3395 | setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout, |
8b230ed8 | 3396 | ((unsigned long)bnad)); |
078086f3 | 3397 | setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check, |
8b230ed8 | 3398 | ((unsigned long)bnad)); |
078086f3 | 3399 | setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout, |
1d32f769 | 3400 | ((unsigned long)bnad)); |
078086f3 | 3401 | setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout, |
8b230ed8 RM |
3402 | ((unsigned long)bnad)); |
3403 | ||
3404 | /* Now start the timer before calling IOC */ | |
078086f3 | 3405 | mod_timer(&bnad->bna.ioceth.ioc.iocpf_timer, |
8b230ed8 RM |
3406 | jiffies + msecs_to_jiffies(BNA_IOC_TIMER_FREQ)); |
3407 | ||
3408 | /* | |
3409 | * Start the chip | |
078086f3 RM |
3410 | * If the call back comes with error, we bail out. |
3411 | * This is a catastrophic error. | |
8b230ed8 | 3412 | */ |
078086f3 RM |
3413 | err = bnad_ioceth_enable(bnad); |
3414 | if (err) { | |
3415 | pr_err("BNA: Initialization failed err=%d\n", | |
3416 | err); | |
3417 | goto probe_success; | |
3418 | } | |
3419 | ||
3420 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3421 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || | |
3422 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) { | |
3423 | bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1, | |
3424 | bna_attr(bna)->num_rxp - 1); | |
3425 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || | |
3426 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) | |
3427 | err = -EIO; | |
3428 | } | |
3caa1e95 RM |
3429 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
3430 | if (err) | |
3431 | goto disable_ioceth; | |
3432 | ||
3433 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 RM |
3434 | bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]); |
3435 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3436 | ||
3437 | err = bnad_res_alloc(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); | |
0caa9aae RM |
3438 | if (err) { |
3439 | err = -EIO; | |
078086f3 | 3440 | goto disable_ioceth; |
0caa9aae | 3441 | } |
078086f3 RM |
3442 | |
3443 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
3444 | bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]); | |
3445 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 RM |
3446 | |
3447 | /* Get the burnt-in mac */ | |
3448 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
078086f3 | 3449 | bna_enet_perm_mac_get(&bna->enet, &bnad->perm_addr); |
8b230ed8 RM |
3450 | bnad_set_netdev_perm_addr(bnad); |
3451 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
3452 | ||
0caa9aae RM |
3453 | mutex_unlock(&bnad->conf_mutex); |
3454 | ||
8b230ed8 RM |
3455 | /* Finally, reguister with net_device layer */ |
3456 | err = register_netdev(netdev); | |
3457 | if (err) { | |
3458 | pr_err("BNA : Registering with netdev failed\n"); | |
078086f3 | 3459 | goto probe_uninit; |
8b230ed8 | 3460 | } |
078086f3 | 3461 | set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags); |
8b230ed8 | 3462 | |
0caa9aae RM |
3463 | return 0; |
3464 | ||
078086f3 RM |
3465 | probe_success: |
3466 | mutex_unlock(&bnad->conf_mutex); | |
8b230ed8 RM |
3467 | return 0; |
3468 | ||
078086f3 | 3469 | probe_uninit: |
3fc72370 | 3470 | mutex_lock(&bnad->conf_mutex); |
078086f3 RM |
3471 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
3472 | disable_ioceth: | |
3473 | bnad_ioceth_disable(bnad); | |
3474 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); | |
3475 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); | |
3476 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); | |
8b230ed8 RM |
3477 | spin_lock_irqsave(&bnad->bna_lock, flags); |
3478 | bna_uninit(bna); | |
3479 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
078086f3 | 3480 | bnad_mbox_irq_free(bnad); |
8b230ed8 | 3481 | bnad_disable_msix(bnad); |
078086f3 RM |
3482 | res_free: |
3483 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); | |
3484 | drv_uninit: | |
7afc5dbd KG |
3485 | /* Remove the debugfs node for this bnad */ |
3486 | kfree(bnad->regdata); | |
3487 | bnad_debugfs_uninit(bnad); | |
078086f3 | 3488 | bnad_uninit(bnad); |
8b230ed8 RM |
3489 | pci_uninit: |
3490 | bnad_pci_uninit(pdev); | |
44861f44 | 3491 | unlock_mutex: |
078086f3 | 3492 | mutex_unlock(&bnad->conf_mutex); |
72a9730b | 3493 | bnad_remove_from_list(bnad); |
8b230ed8 | 3494 | bnad_lock_uninit(bnad); |
8b230ed8 RM |
3495 | free_netdev(netdev); |
3496 | return err; | |
3497 | } | |
3498 | ||
3499 | static void __devexit | |
3500 | bnad_pci_remove(struct pci_dev *pdev) | |
3501 | { | |
3502 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3503 | struct bnad *bnad; | |
3504 | struct bna *bna; | |
3505 | unsigned long flags; | |
3506 | ||
3507 | if (!netdev) | |
3508 | return; | |
3509 | ||
3510 | pr_info("%s bnad_pci_remove\n", netdev->name); | |
3511 | bnad = netdev_priv(netdev); | |
3512 | bna = &bnad->bna; | |
3513 | ||
078086f3 RM |
3514 | if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags)) |
3515 | unregister_netdev(netdev); | |
8b230ed8 RM |
3516 | |
3517 | mutex_lock(&bnad->conf_mutex); | |
078086f3 RM |
3518 | bnad_ioceth_disable(bnad); |
3519 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); | |
3520 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); | |
3521 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); | |
8b230ed8 RM |
3522 | spin_lock_irqsave(&bnad->bna_lock, flags); |
3523 | bna_uninit(bna); | |
3524 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
8b230ed8 | 3525 | |
078086f3 RM |
3526 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
3527 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); | |
3528 | bnad_mbox_irq_free(bnad); | |
8b230ed8 RM |
3529 | bnad_disable_msix(bnad); |
3530 | bnad_pci_uninit(pdev); | |
078086f3 | 3531 | mutex_unlock(&bnad->conf_mutex); |
72a9730b | 3532 | bnad_remove_from_list(bnad); |
8b230ed8 | 3533 | bnad_lock_uninit(bnad); |
7afc5dbd KG |
3534 | /* Remove the debugfs node for this bnad */ |
3535 | kfree(bnad->regdata); | |
3536 | bnad_debugfs_uninit(bnad); | |
8b230ed8 RM |
3537 | bnad_uninit(bnad); |
3538 | free_netdev(netdev); | |
3539 | } | |
3540 | ||
0120b99c | 3541 | static DEFINE_PCI_DEVICE_TABLE(bnad_pci_id_table) = { |
8b230ed8 RM |
3542 | { |
3543 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, | |
3544 | PCI_DEVICE_ID_BROCADE_CT), | |
3545 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, | |
3546 | .class_mask = 0xffff00 | |
586b2816 RM |
3547 | }, |
3548 | { | |
3549 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, | |
3550 | BFA_PCI_DEVICE_ID_CT2), | |
3551 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, | |
3552 | .class_mask = 0xffff00 | |
3553 | }, | |
3554 | {0, }, | |
8b230ed8 RM |
3555 | }; |
3556 | ||
3557 | MODULE_DEVICE_TABLE(pci, bnad_pci_id_table); | |
3558 | ||
3559 | static struct pci_driver bnad_pci_driver = { | |
3560 | .name = BNAD_NAME, | |
3561 | .id_table = bnad_pci_id_table, | |
3562 | .probe = bnad_pci_probe, | |
3563 | .remove = __devexit_p(bnad_pci_remove), | |
3564 | }; | |
3565 | ||
3566 | static int __init | |
3567 | bnad_module_init(void) | |
3568 | { | |
3569 | int err; | |
3570 | ||
5aad0011 RM |
3571 | pr_info("Brocade 10G Ethernet driver - version: %s\n", |
3572 | BNAD_VERSION); | |
8b230ed8 | 3573 | |
8a891429 | 3574 | bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover); |
8b230ed8 RM |
3575 | |
3576 | err = pci_register_driver(&bnad_pci_driver); | |
3577 | if (err < 0) { | |
3578 | pr_err("bna : PCI registration failed in module init " | |
3579 | "(%d)\n", err); | |
3580 | return err; | |
3581 | } | |
3582 | ||
3583 | return 0; | |
3584 | } | |
3585 | ||
3586 | static void __exit | |
3587 | bnad_module_exit(void) | |
3588 | { | |
3589 | pci_unregister_driver(&bnad_pci_driver); | |
3590 | ||
3591 | if (bfi_fw) | |
3592 | release_firmware(bfi_fw); | |
3593 | } | |
3594 | ||
3595 | module_init(bnad_module_init); | |
3596 | module_exit(bnad_module_exit); | |
3597 | ||
3598 | MODULE_AUTHOR("Brocade"); | |
3599 | MODULE_LICENSE("GPL"); | |
3600 | MODULE_DESCRIPTION("Brocade 10G PCIe Ethernet driver"); | |
3601 | MODULE_VERSION(BNAD_VERSION); | |
3602 | MODULE_FIRMWARE(CNA_FW_FILE_CT); | |
1bf9fd70 | 3603 | MODULE_FIRMWARE(CNA_FW_FILE_CT2); |