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19
20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22#include <linux/etherdevice.h>
23#include <linux/if_vlan.h>
24#include <linux/interrupt.h>
25#include <linux/ip.h>
26#include <linux/crash_dump.h>
27#include <net/tcp.h>
28#include <net/ipv6.h>
29#include <net/ip6_checksum.h>
30#include <linux/prefetch.h>
31#include "bnx2x_cmn.h"
32#include "bnx2x_init.h"
33#include "bnx2x_sp.h"
34
35static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp);
36static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp);
37static int bnx2x_alloc_fp_mem(struct bnx2x *bp);
38static int bnx2x_poll(struct napi_struct *napi, int budget);
39
40static void bnx2x_add_all_napi_cnic(struct bnx2x *bp)
41{
42 int i;
43
44
45 for_each_rx_queue_cnic(bp, i) {
46 netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
47 bnx2x_poll, NAPI_POLL_WEIGHT);
48 }
49}
50
51static void bnx2x_add_all_napi(struct bnx2x *bp)
52{
53 int i;
54
55
56 for_each_eth_queue(bp, i) {
57 netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
58 bnx2x_poll, NAPI_POLL_WEIGHT);
59 }
60}
61
62static int bnx2x_calc_num_queues(struct bnx2x *bp)
63{
64 int nq = bnx2x_num_queues ? : netif_get_num_default_rss_queues();
65
66
67 if (is_kdump_kernel())
68 nq = 1;
69
70 nq = clamp(nq, 1, BNX2X_MAX_QUEUES(bp));
71 return nq;
72}
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to)
88{
89 struct bnx2x_fastpath *from_fp = &bp->fp[from];
90 struct bnx2x_fastpath *to_fp = &bp->fp[to];
91 struct bnx2x_sp_objs *from_sp_objs = &bp->sp_objs[from];
92 struct bnx2x_sp_objs *to_sp_objs = &bp->sp_objs[to];
93 struct bnx2x_fp_stats *from_fp_stats = &bp->fp_stats[from];
94 struct bnx2x_fp_stats *to_fp_stats = &bp->fp_stats[to];
95 int old_max_eth_txqs, new_max_eth_txqs;
96 int old_txdata_index = 0, new_txdata_index = 0;
97 struct bnx2x_agg_info *old_tpa_info = to_fp->tpa_info;
98
99
100 from_fp->napi = to_fp->napi;
101
102
103 memcpy(to_fp, from_fp, sizeof(*to_fp));
104 to_fp->index = to;
105
106
107
108
109 to_fp->tpa_info = old_tpa_info;
110
111
112 memcpy(to_sp_objs, from_sp_objs, sizeof(*to_sp_objs));
113
114
115 memcpy(to_fp_stats, from_fp_stats, sizeof(*to_fp_stats));
116
117
118
119
120
121
122 old_max_eth_txqs = BNX2X_NUM_ETH_QUEUES(bp) * (bp)->max_cos;
123 new_max_eth_txqs = (BNX2X_NUM_ETH_QUEUES(bp) - from + to) *
124 (bp)->max_cos;
125 if (from == FCOE_IDX(bp)) {
126 old_txdata_index = old_max_eth_txqs + FCOE_TXQ_IDX_OFFSET;
127 new_txdata_index = new_max_eth_txqs + FCOE_TXQ_IDX_OFFSET;
128 }
129
130 memcpy(&bp->bnx2x_txq[new_txdata_index],
131 &bp->bnx2x_txq[old_txdata_index],
132 sizeof(struct bnx2x_fp_txdata));
133 to_fp->txdata_ptr[0] = &bp->bnx2x_txq[new_txdata_index];
134}
135
136
137
138
139
140
141
142
143
144void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len)
145{
146 if (IS_PF(bp)) {
147 u8 phy_fw_ver[PHY_FW_VER_LEN];
148
149 phy_fw_ver[0] = '\0';
150 bnx2x_get_ext_phy_fw_version(&bp->link_params,
151 phy_fw_ver, PHY_FW_VER_LEN);
152 strlcpy(buf, bp->fw_ver, buf_len);
153 snprintf(buf + strlen(bp->fw_ver), 32 - strlen(bp->fw_ver),
154 "bc %d.%d.%d%s%s",
155 (bp->common.bc_ver & 0xff0000) >> 16,
156 (bp->common.bc_ver & 0xff00) >> 8,
157 (bp->common.bc_ver & 0xff),
158 ((phy_fw_ver[0] != '\0') ? " phy " : ""), phy_fw_ver);
159 } else {
160 bnx2x_vf_fill_fw_str(bp, buf, buf_len);
161 }
162}
163
164
165
166
167
168
169
170static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta)
171{
172 int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp);
173
174
175
176
177 for (cos = 1; cos < bp->max_cos; cos++) {
178 for (i = 0; i < old_eth_num - delta; i++) {
179 struct bnx2x_fastpath *fp = &bp->fp[i];
180 int new_idx = cos * (old_eth_num - delta) + i;
181
182 memcpy(&bp->bnx2x_txq[new_idx], fp->txdata_ptr[cos],
183 sizeof(struct bnx2x_fp_txdata));
184 fp->txdata_ptr[cos] = &bp->bnx2x_txq[new_idx];
185 }
186 }
187}
188
189int bnx2x_load_count[2][3] = { {0} };
190
191
192
193
194static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
195 u16 idx, unsigned int *pkts_compl,
196 unsigned int *bytes_compl)
197{
198 struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx];
199 struct eth_tx_start_bd *tx_start_bd;
200 struct eth_tx_bd *tx_data_bd;
201 struct sk_buff *skb = tx_buf->skb;
202 u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons;
203 int nbd;
204 u16 split_bd_len = 0;
205
206
207 prefetch(&skb->end);
208
209 DP(NETIF_MSG_TX_DONE, "fp[%d]: pkt_idx %d buff @(%p)->skb %p\n",
210 txdata->txq_index, idx, tx_buf, skb);
211
212 tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd;
213
214 nbd = le16_to_cpu(tx_start_bd->nbd) - 1;
215#ifdef BNX2X_STOP_ON_ERROR
216 if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) {
217 BNX2X_ERR("BAD nbd!\n");
218 bnx2x_panic();
219 }
220#endif
221 new_cons = nbd + tx_buf->first_bd;
222
223
224 bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
225
226
227 --nbd;
228 bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
229
230 if (tx_buf->flags & BNX2X_HAS_SECOND_PBD) {
231
232 --nbd;
233 bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
234 }
235
236
237 if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) {
238 tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd;
239 split_bd_len = BD_UNMAP_LEN(tx_data_bd);
240 --nbd;
241 bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
242 }
243
244
245 dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd),
246 BD_UNMAP_LEN(tx_start_bd) + split_bd_len,
247 DMA_TO_DEVICE);
248
249
250 while (nbd > 0) {
251
252 tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd;
253 dma_unmap_page(&bp->pdev->dev, BD_UNMAP_ADDR(tx_data_bd),
254 BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE);
255 if (--nbd)
256 bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
257 }
258
259
260 WARN_ON(!skb);
261 if (likely(skb)) {
262 (*pkts_compl)++;
263 (*bytes_compl) += skb->len;
264 dev_kfree_skb_any(skb);
265 }
266
267 tx_buf->first_bd = 0;
268 tx_buf->skb = NULL;
269
270 return new_cons;
271}
272
273int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata)
274{
275 struct netdev_queue *txq;
276 u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons;
277 unsigned int pkts_compl = 0, bytes_compl = 0;
278
279#ifdef BNX2X_STOP_ON_ERROR
280 if (unlikely(bp->panic))
281 return -1;
282#endif
283
284 txq = netdev_get_tx_queue(bp->dev, txdata->txq_index);
285 hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
286 sw_cons = txdata->tx_pkt_cons;
287
288
289 smp_rmb();
290
291 while (sw_cons != hw_cons) {
292 u16 pkt_cons;
293
294 pkt_cons = TX_BD(sw_cons);
295
296 DP(NETIF_MSG_TX_DONE,
297 "queue[%d]: hw_cons %u sw_cons %u pkt_cons %u\n",
298 txdata->txq_index, hw_cons, sw_cons, pkt_cons);
299
300 bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons,
301 &pkts_compl, &bytes_compl);
302
303 sw_cons++;
304 }
305
306 netdev_tx_completed_queue(txq, pkts_compl, bytes_compl);
307
308 txdata->tx_pkt_cons = sw_cons;
309 txdata->tx_bd_cons = bd_cons;
310
311
312
313
314
315
316
317
318
319
320 smp_mb();
321
322 if (unlikely(netif_tx_queue_stopped(txq))) {
323
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325
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327
328
329
330
331
332
333 __netif_tx_lock(txq, smp_processor_id());
334
335 if ((netif_tx_queue_stopped(txq)) &&
336 (bp->state == BNX2X_STATE_OPEN) &&
337 (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT))
338 netif_tx_wake_queue(txq);
339
340 __netif_tx_unlock(txq);
341 }
342 return 0;
343}
344
345static inline void bnx2x_update_last_max_sge(struct bnx2x_fastpath *fp,
346 u16 idx)
347{
348 u16 last_max = fp->last_max_sge;
349
350 if (SUB_S16(idx, last_max) > 0)
351 fp->last_max_sge = idx;
352}
353
354static inline void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp,
355 u16 sge_len,
356 struct eth_end_agg_rx_cqe *cqe)
357{
358 struct bnx2x *bp = fp->bp;
359 u16 last_max, last_elem, first_elem;
360 u16 delta = 0;
361 u16 i;
362
363 if (!sge_len)
364 return;
365
366
367 for (i = 0; i < sge_len; i++)
368 BIT_VEC64_CLEAR_BIT(fp->sge_mask,
369 RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[i])));
370
371 DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n",
372 sge_len - 1, le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1]));
373
374
375 prefetch((void *)(fp->sge_mask));
376 bnx2x_update_last_max_sge(fp,
377 le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1]));
378
379 last_max = RX_SGE(fp->last_max_sge);
380 last_elem = last_max >> BIT_VEC64_ELEM_SHIFT;
381 first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT;
382
383
384 if (last_elem + 1 != first_elem)
385 last_elem++;
386
387
388 for (i = first_elem; i != last_elem; i = NEXT_SGE_MASK_ELEM(i)) {
389 if (likely(fp->sge_mask[i]))
390 break;
391
392 fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK;
393 delta += BIT_VEC64_ELEM_SZ;
394 }
395
396 if (delta > 0) {
397 fp->rx_sge_prod += delta;
398
399 bnx2x_clear_sge_mask_next_elems(fp);
400 }
401
402 DP(NETIF_MSG_RX_STATUS,
403 "fp->last_max_sge = %d fp->rx_sge_prod = %d\n",
404 fp->last_max_sge, fp->rx_sge_prod);
405}
406
407
408
409
410static u32 bnx2x_get_rxhash(const struct bnx2x *bp,
411 const struct eth_fast_path_rx_cqe *cqe,
412 enum pkt_hash_types *rxhash_type)
413{
414
415 if ((bp->dev->features & NETIF_F_RXHASH) &&
416 (cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) {
417 enum eth_rss_hash_type htype;
418
419 htype = cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_TYPE;
420 *rxhash_type = ((htype == TCP_IPV4_HASH_TYPE) ||
421 (htype == TCP_IPV6_HASH_TYPE)) ?
422 PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3;
423
424 return le32_to_cpu(cqe->rss_hash_result);
425 }
426 *rxhash_type = PKT_HASH_TYPE_NONE;
427 return 0;
428}
429
430static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue,
431 u16 cons, u16 prod,
432 struct eth_fast_path_rx_cqe *cqe)
433{
434 struct bnx2x *bp = fp->bp;
435 struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons];
436 struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod];
437 struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod];
438 dma_addr_t mapping;
439 struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue];
440 struct sw_rx_bd *first_buf = &tpa_info->first_buf;
441
442
443 if (tpa_info->tpa_state != BNX2X_TPA_STOP)
444 BNX2X_ERR("start of bin not in stop [%d]\n", queue);
445
446
447 mapping = dma_map_single(&bp->pdev->dev,
448 first_buf->data + NET_SKB_PAD,
449 fp->rx_buf_size, DMA_FROM_DEVICE);
450
451
452
453
454
455
456 if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) {
457
458 bnx2x_reuse_rx_data(fp, cons, prod);
459 tpa_info->tpa_state = BNX2X_TPA_ERROR;
460 return;
461 }
462
463
464 prod_rx_buf->data = first_buf->data;
465 dma_unmap_addr_set(prod_rx_buf, mapping, mapping);
466
467 prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping));
468 prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping));
469
470
471 *first_buf = *cons_rx_buf;
472
473
474 tpa_info->parsing_flags =
475 le16_to_cpu(cqe->pars_flags.flags);
476 tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag);
477 tpa_info->tpa_state = BNX2X_TPA_START;
478 tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd);
479 tpa_info->placement_offset = cqe->placement_offset;
480 tpa_info->rxhash = bnx2x_get_rxhash(bp, cqe, &tpa_info->rxhash_type);
481 if (fp->mode == TPA_MODE_GRO) {
482 u16 gro_size = le16_to_cpu(cqe->pkt_len_or_gro_seg_len);
483 tpa_info->full_page = SGE_PAGES / gro_size * gro_size;
484 tpa_info->gro_size = gro_size;
485 }
486
487#ifdef BNX2X_STOP_ON_ERROR
488 fp->tpa_queue_used |= (1 << queue);
489 DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%llx\n",
490 fp->tpa_queue_used);
491#endif
492}
493
494
495
496
497
498#define TPA_TSTAMP_OPT_LEN 12
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513static void bnx2x_set_gro_params(struct sk_buff *skb, u16 parsing_flags,
514 u16 len_on_bd, unsigned int pkt_len,
515 u16 num_of_coalesced_segs)
516{
517
518
519
520 u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr);
521
522 if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) ==
523 PRS_FLAG_OVERETH_IPV6) {
524 hdrs_len += sizeof(struct ipv6hdr);
525 skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
526 } else {
527 hdrs_len += sizeof(struct iphdr);
528 skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
529 }
530
531
532
533
534
535
536 if (parsing_flags & PARSING_FLAGS_TIME_STAMP_EXIST_FLAG)
537 hdrs_len += TPA_TSTAMP_OPT_LEN;
538
539 skb_shinfo(skb)->gso_size = len_on_bd - hdrs_len;
540
541
542
543
544 NAPI_GRO_CB(skb)->count = num_of_coalesced_segs;
545}
546
547static int bnx2x_alloc_rx_sge(struct bnx2x *bp, struct bnx2x_fastpath *fp,
548 u16 index, gfp_t gfp_mask)
549{
550 struct sw_rx_page *sw_buf = &fp->rx_page_ring[index];
551 struct eth_rx_sge *sge = &fp->rx_sge_ring[index];
552 struct bnx2x_alloc_pool *pool = &fp->page_pool;
553 dma_addr_t mapping;
554
555 if (!pool->page) {
556 pool->page = alloc_pages(gfp_mask, PAGES_PER_SGE_SHIFT);
557 if (unlikely(!pool->page))
558 return -ENOMEM;
559
560 pool->offset = 0;
561 }
562
563 mapping = dma_map_page(&bp->pdev->dev, pool->page,
564 pool->offset, SGE_PAGE_SIZE, DMA_FROM_DEVICE);
565 if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) {
566 BNX2X_ERR("Can't map sge\n");
567 return -ENOMEM;
568 }
569
570 sw_buf->page = pool->page;
571 sw_buf->offset = pool->offset;
572
573 dma_unmap_addr_set(sw_buf, mapping, mapping);
574
575 sge->addr_hi = cpu_to_le32(U64_HI(mapping));
576 sge->addr_lo = cpu_to_le32(U64_LO(mapping));
577
578 pool->offset += SGE_PAGE_SIZE;
579 if (PAGE_SIZE - pool->offset >= SGE_PAGE_SIZE)
580 get_page(pool->page);
581 else
582 pool->page = NULL;
583 return 0;
584}
585
586static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp,
587 struct bnx2x_agg_info *tpa_info,
588 u16 pages,
589 struct sk_buff *skb,
590 struct eth_end_agg_rx_cqe *cqe,
591 u16 cqe_idx)
592{
593 struct sw_rx_page *rx_pg, old_rx_pg;
594 u32 i, frag_len, frag_size;
595 int err, j, frag_id = 0;
596 u16 len_on_bd = tpa_info->len_on_bd;
597 u16 full_page = 0, gro_size = 0;
598
599 frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd;
600
601 if (fp->mode == TPA_MODE_GRO) {
602 gro_size = tpa_info->gro_size;
603 full_page = tpa_info->full_page;
604 }
605
606
607 if (frag_size)
608 bnx2x_set_gro_params(skb, tpa_info->parsing_flags, len_on_bd,
609 le16_to_cpu(cqe->pkt_len),
610 le16_to_cpu(cqe->num_of_coalesced_segs));
611
612#ifdef BNX2X_STOP_ON_ERROR
613 if (pages > min_t(u32, 8, MAX_SKB_FRAGS) * SGE_PAGES) {
614 BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n",
615 pages, cqe_idx);
616 BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len);
617 bnx2x_panic();
618 return -EINVAL;
619 }
620#endif
621
622
623 for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) {
624 u16 sge_idx = RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[j]));
625
626
627
628 if (fp->mode == TPA_MODE_GRO)
629 frag_len = min_t(u32, frag_size, (u32)full_page);
630 else
631 frag_len = min_t(u32, frag_size, (u32)SGE_PAGES);
632
633 rx_pg = &fp->rx_page_ring[sge_idx];
634 old_rx_pg = *rx_pg;
635
636
637
638 err = bnx2x_alloc_rx_sge(bp, fp, sge_idx, GFP_ATOMIC);
639 if (unlikely(err)) {
640 bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++;
641 return err;
642 }
643
644 dma_unmap_page(&bp->pdev->dev,
645 dma_unmap_addr(&old_rx_pg, mapping),
646 SGE_PAGE_SIZE, DMA_FROM_DEVICE);
647
648 if (fp->mode == TPA_MODE_LRO)
649 skb_fill_page_desc(skb, j, old_rx_pg.page,
650 old_rx_pg.offset, frag_len);
651 else {
652 int rem;
653 int offset = 0;
654 for (rem = frag_len; rem > 0; rem -= gro_size) {
655 int len = rem > gro_size ? gro_size : rem;
656 skb_fill_page_desc(skb, frag_id++,
657 old_rx_pg.page,
658 old_rx_pg.offset + offset,
659 len);
660 if (offset)
661 get_page(old_rx_pg.page);
662 offset += len;
663 }
664 }
665
666 skb->data_len += frag_len;
667 skb->truesize += SGE_PAGES;
668 skb->len += frag_len;
669
670 frag_size -= frag_len;
671 }
672
673 return 0;
674}
675
676static void bnx2x_frag_free(const struct bnx2x_fastpath *fp, void *data)
677{
678 if (fp->rx_frag_size)
679 skb_free_frag(data);
680 else
681 kfree(data);
682}
683
684static void *bnx2x_frag_alloc(const struct bnx2x_fastpath *fp, gfp_t gfp_mask)
685{
686 if (fp->rx_frag_size) {
687
688 if (unlikely(gfpflags_allow_blocking(gfp_mask)))
689 return (void *)__get_free_page(gfp_mask);
690
691 return napi_alloc_frag(fp->rx_frag_size);
692 }
693
694 return kmalloc(fp->rx_buf_size + NET_SKB_PAD, gfp_mask);
695}
696
697#ifdef CONFIG_INET
698static void bnx2x_gro_ip_csum(struct bnx2x *bp, struct sk_buff *skb)
699{
700 const struct iphdr *iph = ip_hdr(skb);
701 struct tcphdr *th;
702
703 skb_set_transport_header(skb, sizeof(struct iphdr));
704 th = tcp_hdr(skb);
705
706 th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb),
707 iph->saddr, iph->daddr, 0);
708}
709
710static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb)
711{
712 struct ipv6hdr *iph = ipv6_hdr(skb);
713 struct tcphdr *th;
714
715 skb_set_transport_header(skb, sizeof(struct ipv6hdr));
716 th = tcp_hdr(skb);
717
718 th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
719 &iph->saddr, &iph->daddr, 0);
720}
721
722static void bnx2x_gro_csum(struct bnx2x *bp, struct sk_buff *skb,
723 void (*gro_func)(struct bnx2x*, struct sk_buff*))
724{
725 skb_reset_network_header(skb);
726 gro_func(bp, skb);
727 tcp_gro_complete(skb);
728}
729#endif
730
731static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp,
732 struct sk_buff *skb)
733{
734#ifdef CONFIG_INET
735 if (skb_shinfo(skb)->gso_size) {
736 switch (be16_to_cpu(skb->protocol)) {
737 case ETH_P_IP:
738 bnx2x_gro_csum(bp, skb, bnx2x_gro_ip_csum);
739 break;
740 case ETH_P_IPV6:
741 bnx2x_gro_csum(bp, skb, bnx2x_gro_ipv6_csum);
742 break;
743 default:
744 netdev_WARN_ONCE(bp->dev,
745 "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n",
746 be16_to_cpu(skb->protocol));
747 }
748 }
749#endif
750 skb_record_rx_queue(skb, fp->rx_queue);
751 napi_gro_receive(&fp->napi, skb);
752}
753
754static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
755 struct bnx2x_agg_info *tpa_info,
756 u16 pages,
757 struct eth_end_agg_rx_cqe *cqe,
758 u16 cqe_idx)
759{
760 struct sw_rx_bd *rx_buf = &tpa_info->first_buf;
761 u8 pad = tpa_info->placement_offset;
762 u16 len = tpa_info->len_on_bd;
763 struct sk_buff *skb = NULL;
764 u8 *new_data, *data = rx_buf->data;
765 u8 old_tpa_state = tpa_info->tpa_state;
766
767 tpa_info->tpa_state = BNX2X_TPA_STOP;
768
769
770
771
772 if (old_tpa_state == BNX2X_TPA_ERROR)
773 goto drop;
774
775
776 new_data = bnx2x_frag_alloc(fp, GFP_ATOMIC);
777
778
779
780 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping),
781 fp->rx_buf_size, DMA_FROM_DEVICE);
782 if (likely(new_data))
783 skb = build_skb(data, fp->rx_frag_size);
784
785 if (likely(skb)) {
786#ifdef BNX2X_STOP_ON_ERROR
787 if (pad + len > fp->rx_buf_size) {
788 BNX2X_ERR("skb_put is about to fail... pad %d len %d rx_buf_size %d\n",
789 pad, len, fp->rx_buf_size);
790 bnx2x_panic();
791 return;
792 }
793#endif
794
795 skb_reserve(skb, pad + NET_SKB_PAD);
796 skb_put(skb, len);
797 skb_set_hash(skb, tpa_info->rxhash, tpa_info->rxhash_type);
798
799 skb->protocol = eth_type_trans(skb, bp->dev);
800 skb->ip_summed = CHECKSUM_UNNECESSARY;
801
802 if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages,
803 skb, cqe, cqe_idx)) {
804 if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN)
805 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tpa_info->vlan_tag);
806 bnx2x_gro_receive(bp, fp, skb);
807 } else {
808 DP(NETIF_MSG_RX_STATUS,
809 "Failed to allocate new pages - dropping packet!\n");
810 dev_kfree_skb_any(skb);
811 }
812
813
814 rx_buf->data = new_data;
815
816 return;
817 }
818 if (new_data)
819 bnx2x_frag_free(fp, new_data);
820drop:
821
822 DP(NETIF_MSG_RX_STATUS,
823 "Failed to allocate or map a new skb - dropping packet!\n");
824 bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed++;
825}
826
827static int bnx2x_alloc_rx_data(struct bnx2x *bp, struct bnx2x_fastpath *fp,
828 u16 index, gfp_t gfp_mask)
829{
830 u8 *data;
831 struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index];
832 struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index];
833 dma_addr_t mapping;
834
835 data = bnx2x_frag_alloc(fp, gfp_mask);
836 if (unlikely(data == NULL))
837 return -ENOMEM;
838
839 mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD,
840 fp->rx_buf_size,
841 DMA_FROM_DEVICE);
842 if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) {
843 bnx2x_frag_free(fp, data);
844 BNX2X_ERR("Can't map rx data\n");
845 return -ENOMEM;
846 }
847
848 rx_buf->data = data;
849 dma_unmap_addr_set(rx_buf, mapping, mapping);
850
851 rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping));
852 rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping));
853
854 return 0;
855}
856
857static
858void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe,
859 struct bnx2x_fastpath *fp,
860 struct bnx2x_eth_q_stats *qstats)
861{
862
863
864
865
866
867 if (cqe->fast_path_cqe.status_flags &
868 ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG)
869 return;
870
871
872
873 if (cqe->fast_path_cqe.type_error_flags &
874 (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG |
875 ETH_FAST_PATH_RX_CQE_L4_BAD_XSUM_FLG))
876 qstats->hw_csum_err++;
877 else
878 skb->ip_summed = CHECKSUM_UNNECESSARY;
879}
880
881static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
882{
883 struct bnx2x *bp = fp->bp;
884 u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons;
885 u16 sw_comp_cons, sw_comp_prod;
886 int rx_pkt = 0;
887 union eth_rx_cqe *cqe;
888 struct eth_fast_path_rx_cqe *cqe_fp;
889
890#ifdef BNX2X_STOP_ON_ERROR
891 if (unlikely(bp->panic))
892 return 0;
893#endif
894 if (budget <= 0)
895 return rx_pkt;
896
897 bd_cons = fp->rx_bd_cons;
898 bd_prod = fp->rx_bd_prod;
899 bd_prod_fw = bd_prod;
900 sw_comp_cons = fp->rx_comp_cons;
901 sw_comp_prod = fp->rx_comp_prod;
902
903 comp_ring_cons = RCQ_BD(sw_comp_cons);
904 cqe = &fp->rx_comp_ring[comp_ring_cons];
905 cqe_fp = &cqe->fast_path_cqe;
906
907 DP(NETIF_MSG_RX_STATUS,
908 "queue[%d]: sw_comp_cons %u\n", fp->index, sw_comp_cons);
909
910 while (BNX2X_IS_CQE_COMPLETED(cqe_fp)) {
911 struct sw_rx_bd *rx_buf = NULL;
912 struct sk_buff *skb;
913 u8 cqe_fp_flags;
914 enum eth_rx_cqe_type cqe_fp_type;
915 u16 len, pad, queue;
916 u8 *data;
917 u32 rxhash;
918 enum pkt_hash_types rxhash_type;
919
920#ifdef BNX2X_STOP_ON_ERROR
921 if (unlikely(bp->panic))
922 return 0;
923#endif
924
925 bd_prod = RX_BD(bd_prod);
926 bd_cons = RX_BD(bd_cons);
927
928
929
930
931
932
933
934
935
936
937
938 rmb();
939
940 cqe_fp_flags = cqe_fp->type_error_flags;
941 cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE;
942
943 DP(NETIF_MSG_RX_STATUS,
944 "CQE type %x err %x status %x queue %x vlan %x len %u\n",
945 CQE_TYPE(cqe_fp_flags),
946 cqe_fp_flags, cqe_fp->status_flags,
947 le32_to_cpu(cqe_fp->rss_hash_result),
948 le16_to_cpu(cqe_fp->vlan_tag),
949 le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len));
950
951
952 if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) {
953 bnx2x_sp_event(fp, cqe);
954 goto next_cqe;
955 }
956
957 rx_buf = &fp->rx_buf_ring[bd_cons];
958 data = rx_buf->data;
959
960 if (!CQE_TYPE_FAST(cqe_fp_type)) {
961 struct bnx2x_agg_info *tpa_info;
962 u16 frag_size, pages;
963#ifdef BNX2X_STOP_ON_ERROR
964
965 if (fp->mode == TPA_MODE_DISABLED &&
966 (CQE_TYPE_START(cqe_fp_type) ||
967 CQE_TYPE_STOP(cqe_fp_type)))
968 BNX2X_ERR("START/STOP packet while TPA disabled, type %x\n",
969 CQE_TYPE(cqe_fp_type));
970#endif
971
972 if (CQE_TYPE_START(cqe_fp_type)) {
973 u16 queue = cqe_fp->queue_index;
974 DP(NETIF_MSG_RX_STATUS,
975 "calling tpa_start on queue %d\n",
976 queue);
977
978 bnx2x_tpa_start(fp, queue,
979 bd_cons, bd_prod,
980 cqe_fp);
981
982 goto next_rx;
983 }
984 queue = cqe->end_agg_cqe.queue_index;
985 tpa_info = &fp->tpa_info[queue];
986 DP(NETIF_MSG_RX_STATUS,
987 "calling tpa_stop on queue %d\n",
988 queue);
989
990 frag_size = le16_to_cpu(cqe->end_agg_cqe.pkt_len) -
991 tpa_info->len_on_bd;
992
993 if (fp->mode == TPA_MODE_GRO)
994 pages = (frag_size + tpa_info->full_page - 1) /
995 tpa_info->full_page;
996 else
997 pages = SGE_PAGE_ALIGN(frag_size) >>
998 SGE_PAGE_SHIFT;
999
1000 bnx2x_tpa_stop(bp, fp, tpa_info, pages,
1001 &cqe->end_agg_cqe, comp_ring_cons);
1002#ifdef BNX2X_STOP_ON_ERROR
1003 if (bp->panic)
1004 return 0;
1005#endif
1006
1007 bnx2x_update_sge_prod(fp, pages, &cqe->end_agg_cqe);
1008 goto next_cqe;
1009 }
1010
1011 len = le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len);
1012 pad = cqe_fp->placement_offset;
1013 dma_sync_single_for_cpu(&bp->pdev->dev,
1014 dma_unmap_addr(rx_buf, mapping),
1015 pad + RX_COPY_THRESH,
1016 DMA_FROM_DEVICE);
1017 pad += NET_SKB_PAD;
1018 prefetch(data + pad);
1019
1020 if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) {
1021 DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS,
1022 "ERROR flags %x rx packet %u\n",
1023 cqe_fp_flags, sw_comp_cons);
1024 bnx2x_fp_qstats(bp, fp)->rx_err_discard_pkt++;
1025 goto reuse_rx;
1026 }
1027
1028
1029
1030
1031 if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) &&
1032 (len <= RX_COPY_THRESH)) {
1033 skb = napi_alloc_skb(&fp->napi, len);
1034 if (skb == NULL) {
1035 DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS,
1036 "ERROR packet dropped because of alloc failure\n");
1037 bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++;
1038 goto reuse_rx;
1039 }
1040 memcpy(skb->data, data + pad, len);
1041 bnx2x_reuse_rx_data(fp, bd_cons, bd_prod);
1042 } else {
1043 if (likely(bnx2x_alloc_rx_data(bp, fp, bd_prod,
1044 GFP_ATOMIC) == 0)) {
1045 dma_unmap_single(&bp->pdev->dev,
1046 dma_unmap_addr(rx_buf, mapping),
1047 fp->rx_buf_size,
1048 DMA_FROM_DEVICE);
1049 skb = build_skb(data, fp->rx_frag_size);
1050 if (unlikely(!skb)) {
1051 bnx2x_frag_free(fp, data);
1052 bnx2x_fp_qstats(bp, fp)->
1053 rx_skb_alloc_failed++;
1054 goto next_rx;
1055 }
1056 skb_reserve(skb, pad);
1057 } else {
1058 DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS,
1059 "ERROR packet dropped because of alloc failure\n");
1060 bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++;
1061reuse_rx:
1062 bnx2x_reuse_rx_data(fp, bd_cons, bd_prod);
1063 goto next_rx;
1064 }
1065 }
1066
1067 skb_put(skb, len);
1068 skb->protocol = eth_type_trans(skb, bp->dev);
1069
1070
1071 rxhash = bnx2x_get_rxhash(bp, cqe_fp, &rxhash_type);
1072 skb_set_hash(skb, rxhash, rxhash_type);
1073
1074 skb_checksum_none_assert(skb);
1075
1076 if (bp->dev->features & NETIF_F_RXCSUM)
1077 bnx2x_csum_validate(skb, cqe, fp,
1078 bnx2x_fp_qstats(bp, fp));
1079
1080 skb_record_rx_queue(skb, fp->rx_queue);
1081
1082
1083 if (unlikely(cqe->fast_path_cqe.type_error_flags &
1084 (1 << ETH_FAST_PATH_RX_CQE_PTP_PKT_SHIFT)))
1085 bnx2x_set_rx_ts(bp, skb);
1086
1087 if (le16_to_cpu(cqe_fp->pars_flags.flags) &
1088 PARSING_FLAGS_VLAN)
1089 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
1090 le16_to_cpu(cqe_fp->vlan_tag));
1091
1092 napi_gro_receive(&fp->napi, skb);
1093next_rx:
1094 rx_buf->data = NULL;
1095
1096 bd_cons = NEXT_RX_IDX(bd_cons);
1097 bd_prod = NEXT_RX_IDX(bd_prod);
1098 bd_prod_fw = NEXT_RX_IDX(bd_prod_fw);
1099 rx_pkt++;
1100next_cqe:
1101 sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod);
1102 sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons);
1103
1104
1105 BNX2X_SEED_CQE(cqe_fp);
1106
1107 if (rx_pkt == budget)
1108 break;
1109
1110 comp_ring_cons = RCQ_BD(sw_comp_cons);
1111 cqe = &fp->rx_comp_ring[comp_ring_cons];
1112 cqe_fp = &cqe->fast_path_cqe;
1113 }
1114
1115 fp->rx_bd_cons = bd_cons;
1116 fp->rx_bd_prod = bd_prod_fw;
1117 fp->rx_comp_cons = sw_comp_cons;
1118 fp->rx_comp_prod = sw_comp_prod;
1119
1120
1121 bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod,
1122 fp->rx_sge_prod);
1123
1124 return rx_pkt;
1125}
1126
1127static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie)
1128{
1129 struct bnx2x_fastpath *fp = fp_cookie;
1130 struct bnx2x *bp = fp->bp;
1131 u8 cos;
1132
1133 DP(NETIF_MSG_INTR,
1134 "got an MSI-X interrupt on IDX:SB [fp %d fw_sd %d igusb %d]\n",
1135 fp->index, fp->fw_sb_id, fp->igu_sb_id);
1136
1137 bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0, IGU_INT_DISABLE, 0);
1138
1139#ifdef BNX2X_STOP_ON_ERROR
1140 if (unlikely(bp->panic))
1141 return IRQ_HANDLED;
1142#endif
1143
1144
1145 for_each_cos_in_tx_queue(fp, cos)
1146 prefetch(fp->txdata_ptr[cos]->tx_cons_sb);
1147
1148 prefetch(&fp->sb_running_index[SM_RX_ID]);
1149 napi_schedule_irqoff(&bnx2x_fp(bp, fp->index, napi));
1150
1151 return IRQ_HANDLED;
1152}
1153
1154
1155void bnx2x_acquire_phy_lock(struct bnx2x *bp)
1156{
1157 mutex_lock(&bp->port.phy_mutex);
1158
1159 bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO);
1160}
1161
1162void bnx2x_release_phy_lock(struct bnx2x *bp)
1163{
1164 bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO);
1165
1166 mutex_unlock(&bp->port.phy_mutex);
1167}
1168
1169
1170u16 bnx2x_get_mf_speed(struct bnx2x *bp)
1171{
1172 u16 line_speed = bp->link_vars.line_speed;
1173 if (IS_MF(bp)) {
1174 u16 maxCfg = bnx2x_extract_max_cfg(bp,
1175 bp->mf_config[BP_VN(bp)]);
1176
1177
1178
1179
1180 if (IS_MF_PERCENT_BW(bp))
1181 line_speed = (line_speed * maxCfg) / 100;
1182 else {
1183 u16 vn_max_rate = maxCfg * 100;
1184
1185 if (vn_max_rate < line_speed)
1186 line_speed = vn_max_rate;
1187 }
1188 }
1189
1190 return line_speed;
1191}
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201static void bnx2x_fill_report_data(struct bnx2x *bp,
1202 struct bnx2x_link_report_data *data)
1203{
1204 memset(data, 0, sizeof(*data));
1205
1206 if (IS_PF(bp)) {
1207
1208 data->line_speed = bnx2x_get_mf_speed(bp);
1209
1210
1211 if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS))
1212 __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
1213 &data->link_report_flags);
1214
1215 if (!BNX2X_NUM_ETH_QUEUES(bp))
1216 __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
1217 &data->link_report_flags);
1218
1219
1220 if (bp->link_vars.duplex == DUPLEX_FULL)
1221 __set_bit(BNX2X_LINK_REPORT_FD,
1222 &data->link_report_flags);
1223
1224
1225 if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX)
1226 __set_bit(BNX2X_LINK_REPORT_RX_FC_ON,
1227 &data->link_report_flags);
1228
1229
1230 if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
1231 __set_bit(BNX2X_LINK_REPORT_TX_FC_ON,
1232 &data->link_report_flags);
1233 } else {
1234 *data = bp->vf_link_vars;
1235 }
1236}
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248void bnx2x_link_report(struct bnx2x *bp)
1249{
1250 bnx2x_acquire_phy_lock(bp);
1251 __bnx2x_link_report(bp);
1252 bnx2x_release_phy_lock(bp);
1253}
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263void __bnx2x_link_report(struct bnx2x *bp)
1264{
1265 struct bnx2x_link_report_data cur_data;
1266
1267 if (bp->force_link_down) {
1268 bp->link_vars.link_up = 0;
1269 return;
1270 }
1271
1272
1273 if (IS_PF(bp) && !CHIP_IS_E1(bp))
1274 bnx2x_read_mf_cfg(bp);
1275
1276
1277 bnx2x_fill_report_data(bp, &cur_data);
1278
1279
1280 if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) ||
1281 (test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
1282 &bp->last_reported_link.link_report_flags) &&
1283 test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
1284 &cur_data.link_report_flags)))
1285 return;
1286
1287 bp->link_cnt++;
1288
1289
1290
1291
1292 memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data));
1293
1294
1295 if (IS_PF(bp))
1296 bnx2x_iov_link_update(bp);
1297
1298 if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
1299 &cur_data.link_report_flags)) {
1300 netif_carrier_off(bp->dev);
1301 netdev_err(bp->dev, "NIC Link is Down\n");
1302 return;
1303 } else {
1304 const char *duplex;
1305 const char *flow;
1306
1307 netif_carrier_on(bp->dev);
1308
1309 if (test_and_clear_bit(BNX2X_LINK_REPORT_FD,
1310 &cur_data.link_report_flags))
1311 duplex = "full";
1312 else
1313 duplex = "half";
1314
1315
1316
1317
1318
1319 if (cur_data.link_report_flags) {
1320 if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON,
1321 &cur_data.link_report_flags)) {
1322 if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON,
1323 &cur_data.link_report_flags))
1324 flow = "ON - receive & transmit";
1325 else
1326 flow = "ON - receive";
1327 } else {
1328 flow = "ON - transmit";
1329 }
1330 } else {
1331 flow = "none";
1332 }
1333 netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n",
1334 cur_data.line_speed, duplex, flow);
1335 }
1336}
1337
1338static void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp)
1339{
1340 int i;
1341
1342 for (i = 1; i <= NUM_RX_SGE_PAGES; i++) {
1343 struct eth_rx_sge *sge;
1344
1345 sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2];
1346 sge->addr_hi =
1347 cpu_to_le32(U64_HI(fp->rx_sge_mapping +
1348 BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES)));
1349
1350 sge->addr_lo =
1351 cpu_to_le32(U64_LO(fp->rx_sge_mapping +
1352 BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES)));
1353 }
1354}
1355
1356static void bnx2x_free_tpa_pool(struct bnx2x *bp,
1357 struct bnx2x_fastpath *fp, int last)
1358{
1359 int i;
1360
1361 for (i = 0; i < last; i++) {
1362 struct bnx2x_agg_info *tpa_info = &fp->tpa_info[i];
1363 struct sw_rx_bd *first_buf = &tpa_info->first_buf;
1364 u8 *data = first_buf->data;
1365
1366 if (data == NULL) {
1367 DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i);
1368 continue;
1369 }
1370 if (tpa_info->tpa_state == BNX2X_TPA_START)
1371 dma_unmap_single(&bp->pdev->dev,
1372 dma_unmap_addr(first_buf, mapping),
1373 fp->rx_buf_size, DMA_FROM_DEVICE);
1374 bnx2x_frag_free(fp, data);
1375 first_buf->data = NULL;
1376 }
1377}
1378
1379void bnx2x_init_rx_rings_cnic(struct bnx2x *bp)
1380{
1381 int j;
1382
1383 for_each_rx_queue_cnic(bp, j) {
1384 struct bnx2x_fastpath *fp = &bp->fp[j];
1385
1386 fp->rx_bd_cons = 0;
1387
1388
1389
1390
1391
1392
1393 bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod,
1394 fp->rx_sge_prod);
1395 }
1396}
1397
1398void bnx2x_init_rx_rings(struct bnx2x *bp)
1399{
1400 int func = BP_FUNC(bp);
1401 u16 ring_prod;
1402 int i, j;
1403
1404
1405 for_each_eth_queue(bp, j) {
1406 struct bnx2x_fastpath *fp = &bp->fp[j];
1407
1408 DP(NETIF_MSG_IFUP,
1409 "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size);
1410
1411 if (fp->mode != TPA_MODE_DISABLED) {
1412
1413 for (i = 0; i < MAX_AGG_QS(bp); i++) {
1414 struct bnx2x_agg_info *tpa_info =
1415 &fp->tpa_info[i];
1416 struct sw_rx_bd *first_buf =
1417 &tpa_info->first_buf;
1418
1419 first_buf->data =
1420 bnx2x_frag_alloc(fp, GFP_KERNEL);
1421 if (!first_buf->data) {
1422 BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n",
1423 j);
1424 bnx2x_free_tpa_pool(bp, fp, i);
1425 fp->mode = TPA_MODE_DISABLED;
1426 break;
1427 }
1428 dma_unmap_addr_set(first_buf, mapping, 0);
1429 tpa_info->tpa_state = BNX2X_TPA_STOP;
1430 }
1431
1432
1433 bnx2x_set_next_page_sgl(fp);
1434
1435
1436 bnx2x_init_sge_ring_bit_mask(fp);
1437
1438
1439 for (i = 0, ring_prod = 0;
1440 i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) {
1441
1442 if (bnx2x_alloc_rx_sge(bp, fp, ring_prod,
1443 GFP_KERNEL) < 0) {
1444 BNX2X_ERR("was only able to allocate %d rx sges\n",
1445 i);
1446 BNX2X_ERR("disabling TPA for queue[%d]\n",
1447 j);
1448
1449 bnx2x_free_rx_sge_range(bp, fp,
1450 ring_prod);
1451 bnx2x_free_tpa_pool(bp, fp,
1452 MAX_AGG_QS(bp));
1453 fp->mode = TPA_MODE_DISABLED;
1454 ring_prod = 0;
1455 break;
1456 }
1457 ring_prod = NEXT_SGE_IDX(ring_prod);
1458 }
1459
1460 fp->rx_sge_prod = ring_prod;
1461 }
1462 }
1463
1464 for_each_eth_queue(bp, j) {
1465 struct bnx2x_fastpath *fp = &bp->fp[j];
1466
1467 fp->rx_bd_cons = 0;
1468
1469
1470
1471
1472
1473
1474 bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod,
1475 fp->rx_sge_prod);
1476
1477 if (j != 0)
1478 continue;
1479
1480 if (CHIP_IS_E1(bp)) {
1481 REG_WR(bp, BAR_USTRORM_INTMEM +
1482 USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func),
1483 U64_LO(fp->rx_comp_mapping));
1484 REG_WR(bp, BAR_USTRORM_INTMEM +
1485 USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4,
1486 U64_HI(fp->rx_comp_mapping));
1487 }
1488 }
1489}
1490
1491static void bnx2x_free_tx_skbs_queue(struct bnx2x_fastpath *fp)
1492{
1493 u8 cos;
1494 struct bnx2x *bp = fp->bp;
1495
1496 for_each_cos_in_tx_queue(fp, cos) {
1497 struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos];
1498 unsigned pkts_compl = 0, bytes_compl = 0;
1499
1500 u16 sw_prod = txdata->tx_pkt_prod;
1501 u16 sw_cons = txdata->tx_pkt_cons;
1502
1503 while (sw_cons != sw_prod) {
1504 bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons),
1505 &pkts_compl, &bytes_compl);
1506 sw_cons++;
1507 }
1508
1509 netdev_tx_reset_queue(
1510 netdev_get_tx_queue(bp->dev,
1511 txdata->txq_index));
1512 }
1513}
1514
1515static void bnx2x_free_tx_skbs_cnic(struct bnx2x *bp)
1516{
1517 int i;
1518
1519 for_each_tx_queue_cnic(bp, i) {
1520 bnx2x_free_tx_skbs_queue(&bp->fp[i]);
1521 }
1522}
1523
1524static void bnx2x_free_tx_skbs(struct bnx2x *bp)
1525{
1526 int i;
1527
1528 for_each_eth_queue(bp, i) {
1529 bnx2x_free_tx_skbs_queue(&bp->fp[i]);
1530 }
1531}
1532
1533static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp)
1534{
1535 struct bnx2x *bp = fp->bp;
1536 int i;
1537
1538
1539 if (fp->rx_buf_ring == NULL)
1540 return;
1541
1542 for (i = 0; i < NUM_RX_BD; i++) {
1543 struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i];
1544 u8 *data = rx_buf->data;
1545
1546 if (data == NULL)
1547 continue;
1548 dma_unmap_single(&bp->pdev->dev,
1549 dma_unmap_addr(rx_buf, mapping),
1550 fp->rx_buf_size, DMA_FROM_DEVICE);
1551
1552 rx_buf->data = NULL;
1553 bnx2x_frag_free(fp, data);
1554 }
1555}
1556
1557static void bnx2x_free_rx_skbs_cnic(struct bnx2x *bp)
1558{
1559 int j;
1560
1561 for_each_rx_queue_cnic(bp, j) {
1562 bnx2x_free_rx_bds(&bp->fp[j]);
1563 }
1564}
1565
1566static void bnx2x_free_rx_skbs(struct bnx2x *bp)
1567{
1568 int j;
1569
1570 for_each_eth_queue(bp, j) {
1571 struct bnx2x_fastpath *fp = &bp->fp[j];
1572
1573 bnx2x_free_rx_bds(fp);
1574
1575 if (fp->mode != TPA_MODE_DISABLED)
1576 bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp));
1577 }
1578}
1579
1580static void bnx2x_free_skbs_cnic(struct bnx2x *bp)
1581{
1582 bnx2x_free_tx_skbs_cnic(bp);
1583 bnx2x_free_rx_skbs_cnic(bp);
1584}
1585
1586void bnx2x_free_skbs(struct bnx2x *bp)
1587{
1588 bnx2x_free_tx_skbs(bp);
1589 bnx2x_free_rx_skbs(bp);
1590}
1591
1592void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value)
1593{
1594
1595 u32 mf_cfg = bp->mf_config[BP_VN(bp)];
1596
1597 if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) {
1598
1599 mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK;
1600
1601
1602 mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT)
1603 & FUNC_MF_CFG_MAX_BW_MASK;
1604
1605 bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg);
1606 }
1607}
1608
1609
1610
1611
1612
1613
1614
1615static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs)
1616{
1617 int i, offset = 0;
1618
1619 if (nvecs == offset)
1620 return;
1621
1622
1623 if (IS_PF(bp)) {
1624 free_irq(bp->msix_table[offset].vector, bp->dev);
1625 DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n",
1626 bp->msix_table[offset].vector);
1627 offset++;
1628 }
1629
1630 if (CNIC_SUPPORT(bp)) {
1631 if (nvecs == offset)
1632 return;
1633 offset++;
1634 }
1635
1636 for_each_eth_queue(bp, i) {
1637 if (nvecs == offset)
1638 return;
1639 DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d irq\n",
1640 i, bp->msix_table[offset].vector);
1641
1642 free_irq(bp->msix_table[offset++].vector, &bp->fp[i]);
1643 }
1644}
1645
1646void bnx2x_free_irq(struct bnx2x *bp)
1647{
1648 if (bp->flags & USING_MSIX_FLAG &&
1649 !(bp->flags & USING_SINGLE_MSIX_FLAG)) {
1650 int nvecs = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_SUPPORT(bp);
1651
1652
1653 if (IS_PF(bp))
1654 nvecs++;
1655
1656 bnx2x_free_msix_irqs(bp, nvecs);
1657 } else {
1658 free_irq(bp->dev->irq, bp->dev);
1659 }
1660}
1661
1662int bnx2x_enable_msix(struct bnx2x *bp)
1663{
1664 int msix_vec = 0, i, rc;
1665
1666
1667 if (IS_PF(bp)) {
1668 bp->msix_table[msix_vec].entry = msix_vec;
1669 BNX2X_DEV_INFO("msix_table[0].entry = %d (slowpath)\n",
1670 bp->msix_table[0].entry);
1671 msix_vec++;
1672 }
1673
1674
1675 if (CNIC_SUPPORT(bp)) {
1676 bp->msix_table[msix_vec].entry = msix_vec;
1677 BNX2X_DEV_INFO("msix_table[%d].entry = %d (CNIC)\n",
1678 msix_vec, bp->msix_table[msix_vec].entry);
1679 msix_vec++;
1680 }
1681
1682
1683 for_each_eth_queue(bp, i) {
1684 bp->msix_table[msix_vec].entry = msix_vec;
1685 BNX2X_DEV_INFO("msix_table[%d].entry = %d (fastpath #%u)\n",
1686 msix_vec, msix_vec, i);
1687 msix_vec++;
1688 }
1689
1690 DP(BNX2X_MSG_SP, "about to request enable msix with %d vectors\n",
1691 msix_vec);
1692
1693 rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0],
1694 BNX2X_MIN_MSIX_VEC_CNT(bp), msix_vec);
1695
1696
1697
1698
1699 if (rc == -ENOSPC) {
1700
1701 rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], 1, 1);
1702 if (rc < 0) {
1703 BNX2X_DEV_INFO("Single MSI-X is not attainable rc %d\n",
1704 rc);
1705 goto no_msix;
1706 }
1707
1708 BNX2X_DEV_INFO("Using single MSI-X vector\n");
1709 bp->flags |= USING_SINGLE_MSIX_FLAG;
1710
1711 BNX2X_DEV_INFO("set number of queues to 1\n");
1712 bp->num_ethernet_queues = 1;
1713 bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues;
1714 } else if (rc < 0) {
1715 BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc);
1716 goto no_msix;
1717 } else if (rc < msix_vec) {
1718
1719 int diff = msix_vec - rc;
1720
1721 BNX2X_DEV_INFO("Trying to use less MSI-X vectors: %d\n", rc);
1722
1723
1724
1725
1726 bp->num_ethernet_queues -= diff;
1727 bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues;
1728
1729 BNX2X_DEV_INFO("New queue configuration set: %d\n",
1730 bp->num_queues);
1731 }
1732
1733 bp->flags |= USING_MSIX_FLAG;
1734
1735 return 0;
1736
1737no_msix:
1738
1739 if (rc == -ENOMEM)
1740 bp->flags |= DISABLE_MSI_FLAG;
1741
1742 return rc;
1743}
1744
1745static int bnx2x_req_msix_irqs(struct bnx2x *bp)
1746{
1747 int i, rc, offset = 0;
1748
1749
1750 if (IS_PF(bp)) {
1751 rc = request_irq(bp->msix_table[offset++].vector,
1752 bnx2x_msix_sp_int, 0,
1753 bp->dev->name, bp->dev);
1754 if (rc) {
1755 BNX2X_ERR("request sp irq failed\n");
1756 return -EBUSY;
1757 }
1758 }
1759
1760 if (CNIC_SUPPORT(bp))
1761 offset++;
1762
1763 for_each_eth_queue(bp, i) {
1764 struct bnx2x_fastpath *fp = &bp->fp[i];
1765 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1766 bp->dev->name, i);
1767
1768 rc = request_irq(bp->msix_table[offset].vector,
1769 bnx2x_msix_fp_int, 0, fp->name, fp);
1770 if (rc) {
1771 BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i,
1772 bp->msix_table[offset].vector, rc);
1773 bnx2x_free_msix_irqs(bp, offset);
1774 return -EBUSY;
1775 }
1776
1777 offset++;
1778 }
1779
1780 i = BNX2X_NUM_ETH_QUEUES(bp);
1781 if (IS_PF(bp)) {
1782 offset = 1 + CNIC_SUPPORT(bp);
1783 netdev_info(bp->dev,
1784 "using MSI-X IRQs: sp %d fp[%d] %d ... fp[%d] %d\n",
1785 bp->msix_table[0].vector,
1786 0, bp->msix_table[offset].vector,
1787 i - 1, bp->msix_table[offset + i - 1].vector);
1788 } else {
1789 offset = CNIC_SUPPORT(bp);
1790 netdev_info(bp->dev,
1791 "using MSI-X IRQs: fp[%d] %d ... fp[%d] %d\n",
1792 0, bp->msix_table[offset].vector,
1793 i - 1, bp->msix_table[offset + i - 1].vector);
1794 }
1795 return 0;
1796}
1797
1798int bnx2x_enable_msi(struct bnx2x *bp)
1799{
1800 int rc;
1801
1802 rc = pci_enable_msi(bp->pdev);
1803 if (rc) {
1804 BNX2X_DEV_INFO("MSI is not attainable\n");
1805 return -1;
1806 }
1807 bp->flags |= USING_MSI_FLAG;
1808
1809 return 0;
1810}
1811
1812static int bnx2x_req_irq(struct bnx2x *bp)
1813{
1814 unsigned long flags;
1815 unsigned int irq;
1816
1817 if (bp->flags & (USING_MSI_FLAG | USING_MSIX_FLAG))
1818 flags = 0;
1819 else
1820 flags = IRQF_SHARED;
1821
1822 if (bp->flags & USING_MSIX_FLAG)
1823 irq = bp->msix_table[0].vector;
1824 else
1825 irq = bp->pdev->irq;
1826
1827 return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev);
1828}
1829
1830static int bnx2x_setup_irqs(struct bnx2x *bp)
1831{
1832 int rc = 0;
1833 if (bp->flags & USING_MSIX_FLAG &&
1834 !(bp->flags & USING_SINGLE_MSIX_FLAG)) {
1835 rc = bnx2x_req_msix_irqs(bp);
1836 if (rc)
1837 return rc;
1838 } else {
1839 rc = bnx2x_req_irq(bp);
1840 if (rc) {
1841 BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc);
1842 return rc;
1843 }
1844 if (bp->flags & USING_MSI_FLAG) {
1845 bp->dev->irq = bp->pdev->irq;
1846 netdev_info(bp->dev, "using MSI IRQ %d\n",
1847 bp->dev->irq);
1848 }
1849 if (bp->flags & USING_MSIX_FLAG) {
1850 bp->dev->irq = bp->msix_table[0].vector;
1851 netdev_info(bp->dev, "using MSIX IRQ %d\n",
1852 bp->dev->irq);
1853 }
1854 }
1855
1856 return 0;
1857}
1858
1859static void bnx2x_napi_enable_cnic(struct bnx2x *bp)
1860{
1861 int i;
1862
1863 for_each_rx_queue_cnic(bp, i) {
1864 napi_enable(&bnx2x_fp(bp, i, napi));
1865 }
1866}
1867
1868static void bnx2x_napi_enable(struct bnx2x *bp)
1869{
1870 int i;
1871
1872 for_each_eth_queue(bp, i) {
1873 napi_enable(&bnx2x_fp(bp, i, napi));
1874 }
1875}
1876
1877static void bnx2x_napi_disable_cnic(struct bnx2x *bp)
1878{
1879 int i;
1880
1881 for_each_rx_queue_cnic(bp, i) {
1882 napi_disable(&bnx2x_fp(bp, i, napi));
1883 }
1884}
1885
1886static void bnx2x_napi_disable(struct bnx2x *bp)
1887{
1888 int i;
1889
1890 for_each_eth_queue(bp, i) {
1891 napi_disable(&bnx2x_fp(bp, i, napi));
1892 }
1893}
1894
1895void bnx2x_netif_start(struct bnx2x *bp)
1896{
1897 if (netif_running(bp->dev)) {
1898 bnx2x_napi_enable(bp);
1899 if (CNIC_LOADED(bp))
1900 bnx2x_napi_enable_cnic(bp);
1901 bnx2x_int_enable(bp);
1902 if (bp->state == BNX2X_STATE_OPEN)
1903 netif_tx_wake_all_queues(bp->dev);
1904 }
1905}
1906
1907void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw)
1908{
1909 bnx2x_int_disable_sync(bp, disable_hw);
1910 bnx2x_napi_disable(bp);
1911 if (CNIC_LOADED(bp))
1912 bnx2x_napi_disable_cnic(bp);
1913}
1914
1915u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb,
1916 struct net_device *sb_dev)
1917{
1918 struct bnx2x *bp = netdev_priv(dev);
1919
1920 if (CNIC_LOADED(bp) && !NO_FCOE(bp)) {
1921 struct ethhdr *hdr = (struct ethhdr *)skb->data;
1922 u16 ether_type = ntohs(hdr->h_proto);
1923
1924
1925 if (ether_type == ETH_P_8021Q) {
1926 struct vlan_ethhdr *vhdr =
1927 (struct vlan_ethhdr *)skb->data;
1928
1929 ether_type = ntohs(vhdr->h_vlan_encapsulated_proto);
1930 }
1931
1932
1933 if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP))
1934 return bnx2x_fcoe_tx(bp, txq_index);
1935 }
1936
1937
1938 return netdev_pick_tx(dev, skb, NULL) %
1939 (BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos);
1940}
1941
1942void bnx2x_set_num_queues(struct bnx2x *bp)
1943{
1944
1945 bp->num_ethernet_queues = bnx2x_calc_num_queues(bp);
1946
1947
1948 if (IS_MF_STORAGE_ONLY(bp))
1949 bp->num_ethernet_queues = 1;
1950
1951
1952 bp->num_cnic_queues = CNIC_SUPPORT(bp);
1953 bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues;
1954
1955 BNX2X_DEV_INFO("set number of queues to %d\n", bp->num_queues);
1956}
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981static int bnx2x_set_real_num_queues(struct bnx2x *bp, int include_cnic)
1982{
1983 int rc, tx, rx;
1984
1985 tx = BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos;
1986 rx = BNX2X_NUM_ETH_QUEUES(bp);
1987
1988
1989 if (include_cnic && !NO_FCOE(bp)) {
1990 rx++;
1991 tx++;
1992 }
1993
1994 rc = netif_set_real_num_tx_queues(bp->dev, tx);
1995 if (rc) {
1996 BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc);
1997 return rc;
1998 }
1999 rc = netif_set_real_num_rx_queues(bp->dev, rx);
2000 if (rc) {
2001 BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc);
2002 return rc;
2003 }
2004
2005 DP(NETIF_MSG_IFUP, "Setting real num queues to (tx, rx) (%d, %d)\n",
2006 tx, rx);
2007
2008 return rc;
2009}
2010
2011static void bnx2x_set_rx_buf_size(struct bnx2x *bp)
2012{
2013 int i;
2014
2015 for_each_queue(bp, i) {
2016 struct bnx2x_fastpath *fp = &bp->fp[i];
2017 u32 mtu;
2018
2019
2020 if (IS_FCOE_IDX(i))
2021
2022
2023
2024
2025
2026
2027 mtu = BNX2X_FCOE_MINI_JUMBO_MTU;
2028 else
2029 mtu = bp->dev->mtu;
2030 fp->rx_buf_size = BNX2X_FW_RX_ALIGN_START +
2031 IP_HEADER_ALIGNMENT_PADDING +
2032 ETH_OVERHEAD +
2033 mtu +
2034 BNX2X_FW_RX_ALIGN_END;
2035 fp->rx_buf_size = SKB_DATA_ALIGN(fp->rx_buf_size);
2036
2037 if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE)
2038 fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD;
2039 else
2040 fp->rx_frag_size = 0;
2041 }
2042}
2043
2044static int bnx2x_init_rss(struct bnx2x *bp)
2045{
2046 int i;
2047 u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp);
2048
2049
2050
2051
2052 for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++)
2053 bp->rss_conf_obj.ind_table[i] =
2054 bp->fp->cl_id +
2055 ethtool_rxfh_indir_default(i, num_eth_queues);
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065 return bnx2x_config_rss_eth(bp, bp->port.pmf || !CHIP_IS_E1x(bp));
2066}
2067
2068int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj,
2069 bool config_hash, bool enable)
2070{
2071 struct bnx2x_config_rss_params params = {NULL};
2072
2073
2074
2075
2076
2077
2078
2079
2080 params.rss_obj = rss_obj;
2081
2082 __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags);
2083
2084 if (enable) {
2085 __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags);
2086
2087
2088 __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags);
2089 __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags);
2090 __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags);
2091 __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags);
2092 if (rss_obj->udp_rss_v4)
2093 __set_bit(BNX2X_RSS_IPV4_UDP, ¶ms.rss_flags);
2094 if (rss_obj->udp_rss_v6)
2095 __set_bit(BNX2X_RSS_IPV6_UDP, ¶ms.rss_flags);
2096
2097 if (!CHIP_IS_E1x(bp)) {
2098
2099 __set_bit(BNX2X_RSS_IPV4_VXLAN, ¶ms.rss_flags);
2100 __set_bit(BNX2X_RSS_IPV6_VXLAN, ¶ms.rss_flags);
2101
2102
2103 __set_bit(BNX2X_RSS_TUNN_INNER_HDRS, ¶ms.rss_flags);
2104 }
2105 } else {
2106 __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags);
2107 }
2108
2109
2110 params.rss_result_mask = MULTI_MASK;
2111
2112 memcpy(params.ind_table, rss_obj->ind_table, sizeof(params.ind_table));
2113
2114 if (config_hash) {
2115
2116 netdev_rss_key_fill(params.rss_key, T_ETH_RSS_KEY * 4);
2117 __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags);
2118 }
2119
2120 if (IS_PF(bp))
2121 return bnx2x_config_rss(bp, ¶ms);
2122 else
2123 return bnx2x_vfpf_config_rss(bp, ¶ms);
2124}
2125
2126static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code)
2127{
2128 struct bnx2x_func_state_params func_params = {NULL};
2129
2130
2131 __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
2132
2133 func_params.f_obj = &bp->func_obj;
2134 func_params.cmd = BNX2X_F_CMD_HW_INIT;
2135
2136 func_params.params.hw_init.load_phase = load_code;
2137
2138 return bnx2x_func_state_change(bp, &func_params);
2139}
2140
2141
2142
2143
2144
2145void bnx2x_squeeze_objects(struct bnx2x *bp)
2146{
2147 int rc;
2148 unsigned long ramrod_flags = 0, vlan_mac_flags = 0;
2149 struct bnx2x_mcast_ramrod_params rparam = {NULL};
2150 struct bnx2x_vlan_mac_obj *mac_obj = &bp->sp_objs->mac_obj;
2151
2152
2153
2154
2155 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
2156
2157 __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags);
2158
2159
2160 __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags);
2161 rc = mac_obj->delete_all(bp, &bp->sp_objs->mac_obj, &vlan_mac_flags,
2162 &ramrod_flags);
2163 if (rc != 0)
2164 BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc);
2165
2166
2167 vlan_mac_flags = 0;
2168 __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags);
2169 rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags,
2170 &ramrod_flags);
2171 if (rc != 0)
2172 BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc);
2173
2174
2175 rparam.mcast_obj = &bp->mcast_obj;
2176 __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags);
2177
2178
2179
2180
2181
2182 netif_addr_lock_bh(bp->dev);
2183 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL);
2184 if (rc < 0)
2185 BNX2X_ERR("Failed to add a new DEL command to a multi-cast object: %d\n",
2186 rc);
2187
2188
2189 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2190 while (rc != 0) {
2191 if (rc < 0) {
2192 BNX2X_ERR("Failed to clean multi-cast object: %d\n",
2193 rc);
2194 netif_addr_unlock_bh(bp->dev);
2195 return;
2196 }
2197
2198 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
2199 }
2200 netif_addr_unlock_bh(bp->dev);
2201}
2202
2203#ifndef BNX2X_STOP_ON_ERROR
2204#define LOAD_ERROR_EXIT(bp, label) \
2205 do { \
2206 (bp)->state = BNX2X_STATE_ERROR; \
2207 goto label; \
2208 } while (0)
2209
2210#define LOAD_ERROR_EXIT_CNIC(bp, label) \
2211 do { \
2212 bp->cnic_loaded = false; \
2213 goto label; \
2214 } while (0)
2215#else
2216#define LOAD_ERROR_EXIT(bp, label) \
2217 do { \
2218 (bp)->state = BNX2X_STATE_ERROR; \
2219 (bp)->panic = 1; \
2220 return -EBUSY; \
2221 } while (0)
2222#define LOAD_ERROR_EXIT_CNIC(bp, label) \
2223 do { \
2224 bp->cnic_loaded = false; \
2225 (bp)->panic = 1; \
2226 return -EBUSY; \
2227 } while (0)
2228#endif
2229
2230static void bnx2x_free_fw_stats_mem(struct bnx2x *bp)
2231{
2232 BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping,
2233 bp->fw_stats_data_sz + bp->fw_stats_req_sz);
2234 return;
2235}
2236
2237static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp)
2238{
2239 int num_groups, vf_headroom = 0;
2240 int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1;
2241
2242
2243 u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats;
2244
2245
2246
2247
2248
2249
2250 bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats;
2251
2252
2253
2254
2255
2256
2257 if (IS_SRIOV(bp))
2258 vf_headroom = bnx2x_vf_headroom(bp);
2259
2260
2261
2262
2263
2264
2265 num_groups =
2266 (((bp->fw_stats_num + vf_headroom) / STATS_QUERY_CMD_COUNT) +
2267 (((bp->fw_stats_num + vf_headroom) % STATS_QUERY_CMD_COUNT) ?
2268 1 : 0));
2269
2270 DP(BNX2X_MSG_SP, "stats fw_stats_num %d, vf headroom %d, num_groups %d\n",
2271 bp->fw_stats_num, vf_headroom, num_groups);
2272 bp->fw_stats_req_sz = sizeof(struct stats_query_header) +
2273 num_groups * sizeof(struct stats_query_cmd_group);
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283 bp->fw_stats_data_sz = sizeof(struct per_port_stats) +
2284 sizeof(struct per_pf_stats) +
2285 sizeof(struct fcoe_statistics_params) +
2286 sizeof(struct per_queue_stats) * num_queue_stats +
2287 sizeof(struct stats_counter);
2288
2289 bp->fw_stats = BNX2X_PCI_ALLOC(&bp->fw_stats_mapping,
2290 bp->fw_stats_data_sz + bp->fw_stats_req_sz);
2291 if (!bp->fw_stats)
2292 goto alloc_mem_err;
2293
2294
2295 bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats;
2296 bp->fw_stats_req_mapping = bp->fw_stats_mapping;
2297 bp->fw_stats_data = (struct bnx2x_fw_stats_data *)
2298 ((u8 *)bp->fw_stats + bp->fw_stats_req_sz);
2299 bp->fw_stats_data_mapping = bp->fw_stats_mapping +
2300 bp->fw_stats_req_sz;
2301
2302 DP(BNX2X_MSG_SP, "statistics request base address set to %x %x\n",
2303 U64_HI(bp->fw_stats_req_mapping),
2304 U64_LO(bp->fw_stats_req_mapping));
2305 DP(BNX2X_MSG_SP, "statistics data base address set to %x %x\n",
2306 U64_HI(bp->fw_stats_data_mapping),
2307 U64_LO(bp->fw_stats_data_mapping));
2308 return 0;
2309
2310alloc_mem_err:
2311 bnx2x_free_fw_stats_mem(bp);
2312 BNX2X_ERR("Can't allocate FW stats memory\n");
2313 return -ENOMEM;
2314}
2315
2316
2317static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code)
2318{
2319 u32 param;
2320
2321
2322 bp->fw_seq =
2323 (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
2324 DRV_MSG_SEQ_NUMBER_MASK);
2325 BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq);
2326
2327
2328 bp->fw_drv_pulse_wr_seq =
2329 (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb) &
2330 DRV_PULSE_SEQ_MASK);
2331 BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq);
2332
2333 param = DRV_MSG_CODE_LOAD_REQ_WITH_LFA;
2334
2335 if (IS_MF_SD(bp) && bnx2x_port_after_undi(bp))
2336 param |= DRV_MSG_CODE_LOAD_REQ_FORCE_LFA;
2337
2338
2339 (*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, param);
2340
2341
2342 if (!(*load_code)) {
2343 BNX2X_ERR("MCP response failure, aborting\n");
2344 return -EBUSY;
2345 }
2346
2347
2348
2349
2350 if ((*load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED) {
2351 BNX2X_ERR("MCP refused load request, aborting\n");
2352 return -EBUSY;
2353 }
2354 return 0;
2355}
2356
2357
2358
2359
2360
2361int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err)
2362{
2363
2364 if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP &&
2365 load_code != FW_MSG_CODE_DRV_LOAD_COMMON) {
2366
2367 u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) +
2368 (BCM_5710_FW_MINOR_VERSION << 8) +
2369 (BCM_5710_FW_REVISION_VERSION << 16) +
2370 (BCM_5710_FW_ENGINEERING_VERSION << 24);
2371
2372
2373 u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
2374
2375 DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n",
2376 loaded_fw, my_fw);
2377
2378
2379 if (my_fw != loaded_fw) {
2380 if (print_err)
2381 BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n",
2382 loaded_fw, my_fw);
2383 else
2384 BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n",
2385 loaded_fw, my_fw);
2386 return -EBUSY;
2387 }
2388 }
2389 return 0;
2390}
2391
2392
2393static int bnx2x_nic_load_no_mcp(struct bnx2x *bp, int port)
2394{
2395 int path = BP_PATH(bp);
2396
2397 DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n",
2398 path, bnx2x_load_count[path][0], bnx2x_load_count[path][1],
2399 bnx2x_load_count[path][2]);
2400 bnx2x_load_count[path][0]++;
2401 bnx2x_load_count[path][1 + port]++;
2402 DP(NETIF_MSG_IFUP, "NO MCP - new load counts[%d] %d, %d, %d\n",
2403 path, bnx2x_load_count[path][0], bnx2x_load_count[path][1],
2404 bnx2x_load_count[path][2]);
2405 if (bnx2x_load_count[path][0] == 1)
2406 return FW_MSG_CODE_DRV_LOAD_COMMON;
2407 else if (bnx2x_load_count[path][1 + port] == 1)
2408 return FW_MSG_CODE_DRV_LOAD_PORT;
2409 else
2410 return FW_MSG_CODE_DRV_LOAD_FUNCTION;
2411}
2412
2413
2414static void bnx2x_nic_load_pmf(struct bnx2x *bp, u32 load_code)
2415{
2416 if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
2417 (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) ||
2418 (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) {
2419 bp->port.pmf = 1;
2420
2421
2422
2423
2424 smp_mb();
2425 } else {
2426 bp->port.pmf = 0;
2427 }
2428
2429 DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
2430}
2431
2432static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code)
2433{
2434 if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
2435 (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) &&
2436 (bp->common.shmem2_base)) {
2437 if (SHMEM2_HAS(bp, dcc_support))
2438 SHMEM2_WR(bp, dcc_support,
2439 (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV |
2440 SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV));
2441 if (SHMEM2_HAS(bp, afex_driver_support))
2442 SHMEM2_WR(bp, afex_driver_support,
2443 SHMEM_AFEX_SUPPORTED_VERSION_ONE);
2444 }
2445
2446
2447 bp->afex_def_vlan_tag = -1;
2448}
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459static void bnx2x_bz_fp(struct bnx2x *bp, int index)
2460{
2461 struct bnx2x_fastpath *fp = &bp->fp[index];
2462 int cos;
2463 struct napi_struct orig_napi = fp->napi;
2464 struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info;
2465
2466
2467 if (fp->tpa_info)
2468 memset(fp->tpa_info, 0, ETH_MAX_AGGREGATION_QUEUES_E1H_E2 *
2469 sizeof(struct bnx2x_agg_info));
2470 memset(fp, 0, sizeof(*fp));
2471
2472
2473 fp->napi = orig_napi;
2474 fp->tpa_info = orig_tpa_info;
2475 fp->bp = bp;
2476 fp->index = index;
2477 if (IS_ETH_FP(fp))
2478 fp->max_cos = bp->max_cos;
2479 else
2480
2481 fp->max_cos = 1;
2482
2483
2484 if (IS_FCOE_FP(fp))
2485 fp->txdata_ptr[0] = &bp->bnx2x_txq[FCOE_TXQ_IDX(bp)];
2486 if (IS_ETH_FP(fp))
2487 for_each_cos_in_tx_queue(fp, cos)
2488 fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos *
2489 BNX2X_NUM_ETH_QUEUES(bp) + index];
2490
2491
2492
2493
2494 if (bp->dev->features & NETIF_F_LRO)
2495 fp->mode = TPA_MODE_LRO;
2496 else if (bp->dev->features & NETIF_F_GRO_HW)
2497 fp->mode = TPA_MODE_GRO;
2498 else
2499 fp->mode = TPA_MODE_DISABLED;
2500
2501
2502
2503
2504 if (bp->disable_tpa || IS_FCOE_FP(fp))
2505 fp->mode = TPA_MODE_DISABLED;
2506}
2507
2508void bnx2x_set_os_driver_state(struct bnx2x *bp, u32 state)
2509{
2510 u32 cur;
2511
2512 if (!IS_MF_BD(bp) || !SHMEM2_HAS(bp, os_driver_state) || IS_VF(bp))
2513 return;
2514
2515 cur = SHMEM2_RD(bp, os_driver_state[BP_FW_MB_IDX(bp)]);
2516 DP(NETIF_MSG_IFUP, "Driver state %08x-->%08x\n",
2517 cur, state);
2518
2519 SHMEM2_WR(bp, os_driver_state[BP_FW_MB_IDX(bp)], state);
2520}
2521
2522int bnx2x_load_cnic(struct bnx2x *bp)
2523{
2524 int i, rc, port = BP_PORT(bp);
2525
2526 DP(NETIF_MSG_IFUP, "Starting CNIC-related load\n");
2527
2528 mutex_init(&bp->cnic_mutex);
2529
2530 if (IS_PF(bp)) {
2531 rc = bnx2x_alloc_mem_cnic(bp);
2532 if (rc) {
2533 BNX2X_ERR("Unable to allocate bp memory for cnic\n");
2534 LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0);
2535 }
2536 }
2537
2538 rc = bnx2x_alloc_fp_mem_cnic(bp);
2539 if (rc) {
2540 BNX2X_ERR("Unable to allocate memory for cnic fps\n");
2541 LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0);
2542 }
2543
2544
2545 rc = bnx2x_set_real_num_queues(bp, 1);
2546 if (rc) {
2547 BNX2X_ERR("Unable to set real_num_queues including cnic\n");
2548 LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0);
2549 }
2550
2551
2552 bnx2x_add_all_napi_cnic(bp);
2553 DP(NETIF_MSG_IFUP, "cnic napi added\n");
2554 bnx2x_napi_enable_cnic(bp);
2555
2556 rc = bnx2x_init_hw_func_cnic(bp);
2557 if (rc)
2558 LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic1);
2559
2560 bnx2x_nic_init_cnic(bp);
2561
2562 if (IS_PF(bp)) {
2563
2564 REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1);
2565
2566
2567 for_each_cnic_queue(bp, i) {
2568 rc = bnx2x_setup_queue(bp, &bp->fp[i], 0);
2569 if (rc) {
2570 BNX2X_ERR("Queue setup failed\n");
2571 LOAD_ERROR_EXIT(bp, load_error_cnic2);
2572 }
2573 }
2574 }
2575
2576
2577 bnx2x_set_rx_mode_inner(bp);
2578
2579
2580 bnx2x_get_iscsi_info(bp);
2581 bnx2x_setup_cnic_irq_info(bp);
2582 bnx2x_setup_cnic_info(bp);
2583 bp->cnic_loaded = true;
2584 if (bp->state == BNX2X_STATE_OPEN)
2585 bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD);
2586
2587 DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n");
2588
2589 return 0;
2590
2591#ifndef BNX2X_STOP_ON_ERROR
2592load_error_cnic2:
2593
2594 REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0);
2595
2596load_error_cnic1:
2597 bnx2x_napi_disable_cnic(bp);
2598
2599 if (bnx2x_set_real_num_queues(bp, 0))
2600 BNX2X_ERR("Unable to set real_num_queues not including cnic\n");
2601load_error_cnic0:
2602 BNX2X_ERR("CNIC-related load failed\n");
2603 bnx2x_free_fp_mem_cnic(bp);
2604 bnx2x_free_mem_cnic(bp);
2605 return rc;
2606#endif
2607}
2608
2609
2610int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
2611{
2612 int port = BP_PORT(bp);
2613 int i, rc = 0, load_code = 0;
2614
2615 DP(NETIF_MSG_IFUP, "Starting NIC load\n");
2616 DP(NETIF_MSG_IFUP,
2617 "CNIC is %s\n", CNIC_ENABLED(bp) ? "enabled" : "disabled");
2618
2619#ifdef BNX2X_STOP_ON_ERROR
2620 if (unlikely(bp->panic)) {
2621 BNX2X_ERR("Can't load NIC when there is panic\n");
2622 return -EPERM;
2623 }
2624#endif
2625
2626 bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD;
2627
2628
2629 memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link));
2630 __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
2631 &bp->last_reported_link.link_report_flags);
2632
2633 if (IS_PF(bp))
2634
2635 bnx2x_ilt_set_info(bp);
2636
2637
2638
2639
2640
2641
2642 DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues);
2643 for_each_queue(bp, i)
2644 bnx2x_bz_fp(bp, i);
2645 memset(bp->bnx2x_txq, 0, (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS +
2646 bp->num_cnic_queues) *
2647 sizeof(struct bnx2x_fp_txdata));
2648
2649 bp->fcoe_init = false;
2650
2651
2652 bnx2x_set_rx_buf_size(bp);
2653
2654 if (IS_PF(bp)) {
2655 rc = bnx2x_alloc_mem(bp);
2656 if (rc) {
2657 BNX2X_ERR("Unable to allocate bp memory\n");
2658 return rc;
2659 }
2660 }
2661
2662
2663
2664
2665 rc = bnx2x_alloc_fp_mem(bp);
2666 if (rc) {
2667 BNX2X_ERR("Unable to allocate memory for fps\n");
2668 LOAD_ERROR_EXIT(bp, load_error0);
2669 }
2670
2671
2672 rc = bnx2x_alloc_fw_stats_mem(bp);
2673 if (rc)
2674 LOAD_ERROR_EXIT(bp, load_error0);
2675
2676
2677 if (IS_VF(bp)) {
2678 rc = bnx2x_vfpf_init(bp);
2679 if (rc)
2680 LOAD_ERROR_EXIT(bp, load_error0);
2681 }
2682
2683
2684
2685
2686
2687 rc = bnx2x_set_real_num_queues(bp, 0);
2688 if (rc) {
2689 BNX2X_ERR("Unable to set real_num_queues\n");
2690 LOAD_ERROR_EXIT(bp, load_error0);
2691 }
2692
2693
2694
2695
2696
2697 bnx2x_setup_tc(bp->dev, bp->max_cos);
2698
2699
2700 bnx2x_add_all_napi(bp);
2701 DP(NETIF_MSG_IFUP, "napi added\n");
2702 bnx2x_napi_enable(bp);
2703
2704 if (IS_PF(bp)) {
2705
2706 bnx2x_set_pf_load(bp);
2707
2708
2709 if (!BP_NOMCP(bp)) {
2710
2711 rc = bnx2x_nic_load_request(bp, &load_code);
2712 if (rc)
2713 LOAD_ERROR_EXIT(bp, load_error1);
2714
2715
2716 rc = bnx2x_compare_fw_ver(bp, load_code, true);
2717 if (rc) {
2718 bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0);
2719 LOAD_ERROR_EXIT(bp, load_error2);
2720 }
2721 } else {
2722 load_code = bnx2x_nic_load_no_mcp(bp, port);
2723 }
2724
2725
2726 bnx2x_nic_load_pmf(bp, load_code);
2727
2728
2729 bnx2x__init_func_obj(bp);
2730
2731
2732 rc = bnx2x_init_hw(bp, load_code);
2733 if (rc) {
2734 BNX2X_ERR("HW init failed, aborting\n");
2735 bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0);
2736 LOAD_ERROR_EXIT(bp, load_error2);
2737 }
2738 }
2739
2740 bnx2x_pre_irq_nic_init(bp);
2741
2742
2743 rc = bnx2x_setup_irqs(bp);
2744 if (rc) {
2745 BNX2X_ERR("setup irqs failed\n");
2746 if (IS_PF(bp))
2747 bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0);
2748 LOAD_ERROR_EXIT(bp, load_error2);
2749 }
2750
2751
2752 if (IS_PF(bp)) {
2753
2754 bnx2x_post_irq_nic_init(bp, load_code);
2755
2756 bnx2x_init_bp_objs(bp);
2757 bnx2x_iov_nic_init(bp);
2758
2759
2760 bp->afex_def_vlan_tag = -1;
2761 bnx2x_nic_load_afex_dcc(bp, load_code);
2762 bp->state = BNX2X_STATE_OPENING_WAIT4_PORT;
2763 rc = bnx2x_func_start(bp);
2764 if (rc) {
2765 BNX2X_ERR("Function start failed!\n");
2766 bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0);
2767
2768 LOAD_ERROR_EXIT(bp, load_error3);
2769 }
2770
2771
2772 if (!BP_NOMCP(bp)) {
2773 load_code = bnx2x_fw_command(bp,
2774 DRV_MSG_CODE_LOAD_DONE, 0);
2775 if (!load_code) {
2776 BNX2X_ERR("MCP response failure, aborting\n");
2777 rc = -EBUSY;
2778 LOAD_ERROR_EXIT(bp, load_error3);
2779 }
2780 }
2781
2782
2783 bnx2x_update_coalesce(bp);
2784 }
2785
2786
2787 rc = bnx2x_setup_leading(bp);
2788 if (rc) {
2789 BNX2X_ERR("Setup leading failed!\n");
2790 LOAD_ERROR_EXIT(bp, load_error3);
2791 }
2792
2793
2794 for_each_nondefault_eth_queue(bp, i) {
2795 if (IS_PF(bp))
2796 rc = bnx2x_setup_queue(bp, &bp->fp[i], false);
2797 else
2798 rc = bnx2x_vfpf_setup_q(bp, &bp->fp[i], false);
2799 if (rc) {
2800 BNX2X_ERR("Queue %d setup failed\n", i);
2801 LOAD_ERROR_EXIT(bp, load_error3);
2802 }
2803 }
2804
2805
2806 rc = bnx2x_init_rss(bp);
2807 if (rc) {
2808 BNX2X_ERR("PF RSS init failed\n");
2809 LOAD_ERROR_EXIT(bp, load_error3);
2810 }
2811
2812
2813 bp->state = BNX2X_STATE_OPEN;
2814
2815
2816 if (IS_PF(bp))
2817 rc = bnx2x_set_eth_mac(bp, true);
2818 else
2819 rc = bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index,
2820 true);
2821 if (rc) {
2822 BNX2X_ERR("Setting Ethernet MAC failed\n");
2823 LOAD_ERROR_EXIT(bp, load_error3);
2824 }
2825
2826 if (IS_PF(bp) && bp->pending_max) {
2827 bnx2x_update_max_mf_config(bp, bp->pending_max);
2828 bp->pending_max = 0;
2829 }
2830
2831 bp->force_link_down = false;
2832 if (bp->port.pmf) {
2833 rc = bnx2x_initial_phy_init(bp, load_mode);
2834 if (rc)
2835 LOAD_ERROR_EXIT(bp, load_error3);
2836 }
2837 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_BOOT_FROM_SAN;
2838
2839
2840
2841
2842 rc = bnx2x_vlan_reconfigure_vid(bp);
2843 if (rc)
2844 LOAD_ERROR_EXIT(bp, load_error3);
2845
2846
2847 bnx2x_set_rx_mode_inner(bp);
2848
2849 if (bp->flags & PTP_SUPPORTED) {
2850 bnx2x_register_phc(bp);
2851 bnx2x_init_ptp(bp);
2852 bnx2x_configure_ptp_filters(bp);
2853 }
2854
2855 switch (load_mode) {
2856 case LOAD_NORMAL:
2857
2858 netif_tx_wake_all_queues(bp->dev);
2859 break;
2860
2861 case LOAD_OPEN:
2862 netif_tx_start_all_queues(bp->dev);
2863 smp_mb__after_atomic();
2864 break;
2865
2866 case LOAD_DIAG:
2867 case LOAD_LOOPBACK_EXT:
2868 bp->state = BNX2X_STATE_DIAG;
2869 break;
2870
2871 default:
2872 break;
2873 }
2874
2875 if (bp->port.pmf)
2876 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0);
2877 else
2878 bnx2x__link_status_update(bp);
2879
2880
2881 mod_timer(&bp->timer, jiffies + bp->current_interval);
2882
2883 if (CNIC_ENABLED(bp))
2884 bnx2x_load_cnic(bp);
2885
2886 if (IS_PF(bp))
2887 bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0);
2888
2889 if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) {
2890
2891 u32 val;
2892 val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]);
2893 val &= ~DRV_FLAGS_MTU_MASK;
2894 val |= (bp->dev->mtu << DRV_FLAGS_MTU_SHIFT);
2895 SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)],
2896 val | DRV_FLAGS_CAPABILITIES_LOADED_SUPPORTED |
2897 DRV_FLAGS_CAPABILITIES_LOADED_L2);
2898 }
2899
2900
2901 if (IS_PF(bp) && !bnx2x_wait_sp_comp(bp, ~0x0UL)) {
2902 BNX2X_ERR("Timeout waiting for SP elements to complete\n");
2903 bnx2x_nic_unload(bp, UNLOAD_CLOSE, false);
2904 return -EBUSY;
2905 }
2906
2907
2908 if (IS_PF(bp))
2909 bnx2x_update_mfw_dump(bp);
2910
2911
2912 if (bp->port.pmf && (bp->state != BNX2X_STATE_DIAG))
2913 bnx2x_dcbx_init(bp, false);
2914
2915 if (!IS_MF_SD_STORAGE_PERSONALITY_ONLY(bp))
2916 bnx2x_set_os_driver_state(bp, OS_DRIVER_STATE_ACTIVE);
2917
2918 DP(NETIF_MSG_IFUP, "Ending successfully NIC load\n");
2919
2920 return 0;
2921
2922#ifndef BNX2X_STOP_ON_ERROR
2923load_error3:
2924 if (IS_PF(bp)) {
2925 bnx2x_int_disable_sync(bp, 1);
2926
2927
2928 bnx2x_squeeze_objects(bp);
2929 }
2930
2931
2932 bnx2x_free_skbs(bp);
2933 for_each_rx_queue(bp, i)
2934 bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
2935
2936
2937 bnx2x_free_irq(bp);
2938load_error2:
2939 if (IS_PF(bp) && !BP_NOMCP(bp)) {
2940 bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0);
2941 bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
2942 }
2943
2944 bp->port.pmf = 0;
2945load_error1:
2946 bnx2x_napi_disable(bp);
2947 bnx2x_del_all_napi(bp);
2948
2949
2950 if (IS_PF(bp))
2951 bnx2x_clear_pf_load(bp);
2952load_error0:
2953 bnx2x_free_fw_stats_mem(bp);
2954 bnx2x_free_fp_mem(bp);
2955 bnx2x_free_mem(bp);
2956
2957 return rc;
2958#endif
2959}
2960
2961int bnx2x_drain_tx_queues(struct bnx2x *bp)
2962{
2963 u8 rc = 0, cos, i;
2964
2965
2966 for_each_tx_queue(bp, i) {
2967 struct bnx2x_fastpath *fp = &bp->fp[i];
2968
2969 for_each_cos_in_tx_queue(fp, cos)
2970 rc = bnx2x_clean_tx_queue(bp, fp->txdata_ptr[cos]);
2971 if (rc)
2972 return rc;
2973 }
2974 return 0;
2975}
2976
2977
2978int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
2979{
2980 int i;
2981 bool global = false;
2982
2983 DP(NETIF_MSG_IFUP, "Starting NIC unload\n");
2984
2985 if (!IS_MF_SD_STORAGE_PERSONALITY_ONLY(bp))
2986 bnx2x_set_os_driver_state(bp, OS_DRIVER_STATE_DISABLED);
2987
2988
2989 if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) {
2990 u32 val;
2991 val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]);
2992 SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)],
2993 val & ~DRV_FLAGS_CAPABILITIES_LOADED_L2);
2994 }
2995
2996 if (IS_PF(bp) && bp->recovery_state != BNX2X_RECOVERY_DONE &&
2997 (bp->state == BNX2X_STATE_CLOSED ||
2998 bp->state == BNX2X_STATE_ERROR)) {
2999
3000
3001
3002
3003
3004
3005
3006 bp->recovery_state = BNX2X_RECOVERY_DONE;
3007 bp->is_leader = 0;
3008 bnx2x_release_leader_lock(bp);
3009 smp_mb();
3010
3011 DP(NETIF_MSG_IFDOWN, "Releasing a leadership...\n");
3012 BNX2X_ERR("Can't unload in closed or error state\n");
3013 return -EINVAL;
3014 }
3015
3016
3017
3018
3019
3020
3021
3022 if (bp->state == BNX2X_STATE_CLOSED || bp->state == BNX2X_STATE_ERROR)
3023 return 0;
3024
3025
3026
3027
3028
3029 bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT;
3030 smp_mb();
3031
3032
3033 bnx2x_iov_channel_down(bp);
3034
3035 if (CNIC_LOADED(bp))
3036 bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD);
3037
3038
3039 bnx2x_tx_disable(bp);
3040 netdev_reset_tc(bp->dev);
3041
3042 bp->rx_mode = BNX2X_RX_MODE_NONE;
3043
3044 del_timer_sync(&bp->timer);
3045
3046 if (IS_PF(bp) && !BP_NOMCP(bp)) {
3047
3048 bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE;
3049 bnx2x_drv_pulse(bp);
3050 bnx2x_stats_handle(bp, STATS_EVENT_STOP);
3051 bnx2x_save_statistics(bp);
3052 }
3053
3054
3055
3056
3057
3058 if (unload_mode != UNLOAD_RECOVERY)
3059 bnx2x_drain_tx_queues(bp);
3060
3061
3062
3063
3064 if (IS_VF(bp)) {
3065 bnx2x_clear_vlan_info(bp);
3066 bnx2x_vfpf_close_vf(bp);
3067 } else if (unload_mode != UNLOAD_RECOVERY) {
3068
3069 bnx2x_chip_cleanup(bp, unload_mode, keep_link);
3070 } else {
3071
3072 bnx2x_send_unload_req(bp, unload_mode);
3073
3074
3075
3076
3077
3078
3079
3080 if (!CHIP_IS_E1x(bp))
3081 bnx2x_pf_disable(bp);
3082
3083
3084 bnx2x_netif_stop(bp, 1);
3085
3086 bnx2x_del_all_napi(bp);
3087 if (CNIC_LOADED(bp))
3088 bnx2x_del_all_napi_cnic(bp);
3089
3090 bnx2x_free_irq(bp);
3091
3092
3093 bnx2x_send_unload_done(bp, false);
3094 }
3095
3096
3097
3098
3099
3100 if (IS_PF(bp))
3101 bnx2x_squeeze_objects(bp);
3102
3103
3104 bp->sp_state = 0;
3105
3106 bp->port.pmf = 0;
3107
3108
3109 bp->sp_rtnl_state = 0;
3110 smp_mb();
3111
3112
3113 bnx2x_free_skbs(bp);
3114 if (CNIC_LOADED(bp))
3115 bnx2x_free_skbs_cnic(bp);
3116 for_each_rx_queue(bp, i)
3117 bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
3118
3119 bnx2x_free_fp_mem(bp);
3120 if (CNIC_LOADED(bp))
3121 bnx2x_free_fp_mem_cnic(bp);
3122
3123 if (IS_PF(bp)) {
3124 if (CNIC_LOADED(bp))
3125 bnx2x_free_mem_cnic(bp);
3126 }
3127 bnx2x_free_mem(bp);
3128
3129 bp->state = BNX2X_STATE_CLOSED;
3130 bp->cnic_loaded = false;
3131
3132
3133 if (IS_PF(bp) && !BP_NOMCP(bp))
3134 bnx2x_update_mng_version(bp);
3135
3136
3137
3138
3139 if (IS_PF(bp) && bnx2x_chk_parity_attn(bp, &global, false)) {
3140 bnx2x_set_reset_in_progress(bp);
3141
3142
3143 if (global)
3144 bnx2x_set_reset_global(bp);
3145 }
3146
3147
3148
3149
3150 if (IS_PF(bp) &&
3151 !bnx2x_clear_pf_load(bp) &&
3152 bnx2x_reset_is_done(bp, BP_PATH(bp)))
3153 bnx2x_disable_close_the_gate(bp);
3154
3155 DP(NETIF_MSG_IFUP, "Ending NIC unload\n");
3156
3157 return 0;
3158}
3159
3160int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state)
3161{
3162 u16 pmcsr;
3163
3164
3165 if (!bp->pdev->pm_cap) {
3166 BNX2X_DEV_INFO("No power capability. Breaking.\n");
3167 return 0;
3168 }
3169
3170 pci_read_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, &pmcsr);
3171
3172 switch (state) {
3173 case PCI_D0:
3174 pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL,
3175 ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) |
3176 PCI_PM_CTRL_PME_STATUS));
3177
3178 if (pmcsr & PCI_PM_CTRL_STATE_MASK)
3179
3180 msleep(20);
3181 break;
3182
3183 case PCI_D3hot:
3184
3185
3186 if (atomic_read(&bp->pdev->enable_cnt) != 1)
3187 return 0;
3188
3189 if (CHIP_REV_IS_SLOW(bp))
3190 return 0;
3191
3192 pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
3193 pmcsr |= 3;
3194
3195 if (bp->wol)
3196 pmcsr |= PCI_PM_CTRL_PME_ENABLE;
3197
3198 pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL,
3199 pmcsr);
3200
3201
3202
3203
3204 break;
3205
3206 default:
3207 dev_err(&bp->pdev->dev, "Can't support state = %d\n", state);
3208 return -EINVAL;
3209 }
3210 return 0;
3211}
3212
3213
3214
3215
3216static int bnx2x_poll(struct napi_struct *napi, int budget)
3217{
3218 struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath,
3219 napi);
3220 struct bnx2x *bp = fp->bp;
3221 int rx_work_done;
3222 u8 cos;
3223
3224#ifdef BNX2X_STOP_ON_ERROR
3225 if (unlikely(bp->panic)) {
3226 napi_complete(napi);
3227 return 0;
3228 }
3229#endif
3230 for_each_cos_in_tx_queue(fp, cos)
3231 if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos]))
3232 bnx2x_tx_int(bp, fp->txdata_ptr[cos]);
3233
3234 rx_work_done = (bnx2x_has_rx_work(fp)) ? bnx2x_rx_int(fp, budget) : 0;
3235
3236 if (rx_work_done < budget) {
3237
3238
3239
3240
3241 if (IS_FCOE_FP(fp)) {
3242 napi_complete_done(napi, rx_work_done);
3243 } else {
3244 bnx2x_update_fpsb_idx(fp);
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258 rmb();
3259
3260 if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) {
3261 if (napi_complete_done(napi, rx_work_done)) {
3262
3263 DP(NETIF_MSG_RX_STATUS,
3264 "Update index to %d\n", fp->fp_hc_idx);
3265 bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID,
3266 le16_to_cpu(fp->fp_hc_idx),
3267 IGU_INT_ENABLE, 1);
3268 }
3269 } else {
3270 rx_work_done = budget;
3271 }
3272 }
3273 }
3274
3275 return rx_work_done;
3276}
3277
3278
3279
3280
3281
3282static u16 bnx2x_tx_split(struct bnx2x *bp,
3283 struct bnx2x_fp_txdata *txdata,
3284 struct sw_tx_bd *tx_buf,
3285 struct eth_tx_start_bd **tx_bd, u16 hlen,
3286 u16 bd_prod)
3287{
3288 struct eth_tx_start_bd *h_tx_bd = *tx_bd;
3289 struct eth_tx_bd *d_tx_bd;
3290 dma_addr_t mapping;
3291 int old_len = le16_to_cpu(h_tx_bd->nbytes);
3292
3293
3294 h_tx_bd->nbytes = cpu_to_le16(hlen);
3295
3296 DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d (%x:%x)\n",
3297 h_tx_bd->nbytes, h_tx_bd->addr_hi, h_tx_bd->addr_lo);
3298
3299
3300
3301 bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
3302 d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd;
3303
3304 mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi),
3305 le32_to_cpu(h_tx_bd->addr_lo)) + hlen;
3306
3307 d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping));
3308 d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping));
3309 d_tx_bd->nbytes = cpu_to_le16(old_len - hlen);
3310
3311
3312 tx_buf->flags |= BNX2X_TSO_SPLIT_BD;
3313
3314 DP(NETIF_MSG_TX_QUEUED,
3315 "TSO split data size is %d (%x:%x)\n",
3316 d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo);
3317
3318
3319 *tx_bd = (struct eth_tx_start_bd *)d_tx_bd;
3320
3321 return bd_prod;
3322}
3323
3324#define bswab32(b32) ((__force __le32) swab32((__force __u32) (b32)))
3325#define bswab16(b16) ((__force __le16) swab16((__force __u16) (b16)))
3326static __le16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix)
3327{
3328 __sum16 tsum = (__force __sum16) csum;
3329
3330 if (fix > 0)
3331 tsum = ~csum_fold(csum_sub((__force __wsum) csum,
3332 csum_partial(t_header - fix, fix, 0)));
3333
3334 else if (fix < 0)
3335 tsum = ~csum_fold(csum_add((__force __wsum) csum,
3336 csum_partial(t_header, -fix, 0)));
3337
3338 return bswab16(tsum);
3339}
3340
3341static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb)
3342{
3343 u32 rc;
3344 __u8 prot = 0;
3345 __be16 protocol;
3346
3347 if (skb->ip_summed != CHECKSUM_PARTIAL)
3348 return XMIT_PLAIN;
3349
3350 protocol = vlan_get_protocol(skb);
3351 if (protocol == htons(ETH_P_IPV6)) {
3352 rc = XMIT_CSUM_V6;
3353 prot = ipv6_hdr(skb)->nexthdr;
3354 } else {
3355 rc = XMIT_CSUM_V4;
3356 prot = ip_hdr(skb)->protocol;
3357 }
3358
3359 if (!CHIP_IS_E1x(bp) && skb->encapsulation) {
3360 if (inner_ip_hdr(skb)->version == 6) {
3361 rc |= XMIT_CSUM_ENC_V6;
3362 if (inner_ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
3363 rc |= XMIT_CSUM_TCP;
3364 } else {
3365 rc |= XMIT_CSUM_ENC_V4;
3366 if (inner_ip_hdr(skb)->protocol == IPPROTO_TCP)
3367 rc |= XMIT_CSUM_TCP;
3368 }
3369 }
3370 if (prot == IPPROTO_TCP)
3371 rc |= XMIT_CSUM_TCP;
3372
3373 if (skb_is_gso(skb)) {
3374 if (skb_is_gso_v6(skb)) {
3375 rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP);
3376 if (rc & XMIT_CSUM_ENC)
3377 rc |= XMIT_GSO_ENC_V6;
3378 } else {
3379 rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP);
3380 if (rc & XMIT_CSUM_ENC)
3381 rc |= XMIT_GSO_ENC_V4;
3382 }
3383 }
3384
3385 return rc;
3386}
3387
3388
3389#define BNX2X_NUM_VXLAN_TSO_WIN_SUB_BDS 4
3390
3391
3392#define BNX2X_NUM_TSO_WIN_SUB_BDS 3
3393
3394#if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT)
3395
3396
3397
3398static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb,
3399 u32 xmit_type)
3400{
3401 int first_bd_sz = 0, num_tso_win_sub = BNX2X_NUM_TSO_WIN_SUB_BDS;
3402 int to_copy = 0, hlen = 0;
3403
3404 if (xmit_type & XMIT_GSO_ENC)
3405 num_tso_win_sub = BNX2X_NUM_VXLAN_TSO_WIN_SUB_BDS;
3406
3407 if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - num_tso_win_sub)) {
3408 if (xmit_type & XMIT_GSO) {
3409 unsigned short lso_mss = skb_shinfo(skb)->gso_size;
3410 int wnd_size = MAX_FETCH_BD - num_tso_win_sub;
3411
3412 int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size;
3413 int wnd_idx = 0;
3414 int frag_idx = 0;
3415 u32 wnd_sum = 0;
3416
3417
3418 if (xmit_type & XMIT_GSO_ENC)
3419 hlen = (int)(skb_inner_transport_header(skb) -
3420 skb->data) +
3421 inner_tcp_hdrlen(skb);
3422 else
3423 hlen = (int)(skb_transport_header(skb) -
3424 skb->data) + tcp_hdrlen(skb);
3425
3426
3427 first_bd_sz = skb_headlen(skb) - hlen;
3428
3429 wnd_sum = first_bd_sz;
3430
3431
3432 for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++)
3433 wnd_sum +=
3434 skb_frag_size(&skb_shinfo(skb)->frags[frag_idx]);
3435
3436
3437 if (first_bd_sz > 0) {
3438 if (unlikely(wnd_sum < lso_mss)) {
3439 to_copy = 1;
3440 goto exit_lbl;
3441 }
3442
3443 wnd_sum -= first_bd_sz;
3444 }
3445
3446
3447
3448 for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) {
3449 wnd_sum +=
3450 skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1]);
3451
3452 if (unlikely(wnd_sum < lso_mss)) {
3453 to_copy = 1;
3454 break;
3455 }
3456 wnd_sum -=
3457 skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx]);
3458 }
3459 } else {
3460
3461
3462 to_copy = 1;
3463 }
3464 }
3465
3466exit_lbl:
3467 if (unlikely(to_copy))
3468 DP(NETIF_MSG_TX_QUEUED,
3469 "Linearization IS REQUIRED for %s packet. num_frags %d hlen %d first_bd_sz %d\n",
3470 (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO",
3471 skb_shinfo(skb)->nr_frags, hlen, first_bd_sz);
3472
3473 return to_copy;
3474}
3475#endif
3476
3477
3478
3479
3480
3481
3482
3483
3484static void bnx2x_set_pbd_gso(struct sk_buff *skb,
3485 struct eth_tx_parse_bd_e1x *pbd,
3486 u32 xmit_type)
3487{
3488 pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
3489 pbd->tcp_send_seq = bswab32(tcp_hdr(skb)->seq);
3490 pbd->tcp_flags = pbd_tcp_flags(tcp_hdr(skb));
3491
3492 if (xmit_type & XMIT_GSO_V4) {
3493 pbd->ip_id = bswab16(ip_hdr(skb)->id);
3494 pbd->tcp_pseudo_csum =
3495 bswab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr,
3496 ip_hdr(skb)->daddr,
3497 0, IPPROTO_TCP, 0));
3498 } else {
3499 pbd->tcp_pseudo_csum =
3500 bswab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
3501 &ipv6_hdr(skb)->daddr,
3502 0, IPPROTO_TCP, 0));
3503 }
3504
3505 pbd->global_data |=
3506 cpu_to_le16(ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN);
3507}
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb,
3520 u32 *parsing_data, u32 xmit_type)
3521{
3522 *parsing_data |=
3523 ((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) <<
3524 ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) &
3525 ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W;
3526
3527 if (xmit_type & XMIT_CSUM_TCP) {
3528 *parsing_data |= ((inner_tcp_hdrlen(skb) / 4) <<
3529 ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) &
3530 ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW;
3531
3532 return skb_inner_transport_header(skb) +
3533 inner_tcp_hdrlen(skb) - skb->data;
3534 }
3535
3536
3537
3538
3539 return skb_inner_transport_header(skb) +
3540 sizeof(struct udphdr) - skb->data;
3541}
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb,
3554 u32 *parsing_data, u32 xmit_type)
3555{
3556 *parsing_data |=
3557 ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) <<
3558 ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) &
3559 ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W;
3560
3561 if (xmit_type & XMIT_CSUM_TCP) {
3562 *parsing_data |= ((tcp_hdrlen(skb) / 4) <<
3563 ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) &
3564 ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW;
3565
3566 return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data;
3567 }
3568
3569
3570
3571 return skb_transport_header(skb) + sizeof(struct udphdr) - skb->data;
3572}
3573
3574
3575static void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb,
3576 struct eth_tx_start_bd *tx_start_bd,
3577 u32 xmit_type)
3578{
3579 tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM;
3580
3581 if (xmit_type & (XMIT_CSUM_ENC_V6 | XMIT_CSUM_V6))
3582 tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IPV6;
3583
3584 if (!(xmit_type & XMIT_CSUM_TCP))
3585 tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IS_UDP;
3586}
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb,
3597 struct eth_tx_parse_bd_e1x *pbd,
3598 u32 xmit_type)
3599{
3600 u8 hlen = (skb_network_header(skb) - skb->data) >> 1;
3601
3602
3603 pbd->global_data =
3604 cpu_to_le16(hlen |
3605 ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) <<
3606 ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT));
3607
3608 pbd->ip_hlen_w = (skb_transport_header(skb) -
3609 skb_network_header(skb)) >> 1;
3610
3611 hlen += pbd->ip_hlen_w;
3612
3613
3614 if (xmit_type & XMIT_CSUM_TCP)
3615 hlen += tcp_hdrlen(skb) / 2;
3616 else
3617 hlen += sizeof(struct udphdr) / 2;
3618
3619 pbd->total_hlen_w = cpu_to_le16(hlen);
3620 hlen = hlen*2;
3621
3622 if (xmit_type & XMIT_CSUM_TCP) {
3623 pbd->tcp_pseudo_csum = bswab16(tcp_hdr(skb)->check);
3624
3625 } else {
3626 s8 fix = SKB_CS_OFF(skb);
3627
3628 DP(NETIF_MSG_TX_QUEUED,
3629 "hlen %d fix %d csum before fix %x\n",
3630 le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb));
3631
3632
3633 pbd->tcp_pseudo_csum =
3634 bnx2x_csum_fix(skb_transport_header(skb),
3635 SKB_CS(skb), fix);
3636
3637 DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n",
3638 pbd->tcp_pseudo_csum);
3639 }
3640
3641 return hlen;
3642}
3643
3644static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb,
3645 struct eth_tx_parse_bd_e2 *pbd_e2,
3646 struct eth_tx_parse_2nd_bd *pbd2,
3647 u16 *global_data,
3648 u32 xmit_type)
3649{
3650 u16 hlen_w = 0;
3651 u8 outerip_off, outerip_len = 0;
3652
3653
3654 hlen_w = (skb_inner_transport_header(skb) -
3655 skb_network_header(skb)) >> 1;
3656
3657
3658 hlen_w += inner_tcp_hdrlen(skb) >> 1;
3659
3660 pbd2->fw_ip_hdr_to_payload_w = hlen_w;
3661
3662
3663 if (xmit_type & XMIT_CSUM_V4) {
3664 struct iphdr *iph = ip_hdr(skb);
3665 u32 csum = (__force u32)(~iph->check) -
3666 (__force u32)iph->tot_len -
3667 (__force u32)iph->frag_off;
3668
3669 outerip_len = iph->ihl << 1;
3670
3671 pbd2->fw_ip_csum_wo_len_flags_frag =
3672 bswab16(csum_fold((__force __wsum)csum));
3673 } else {
3674 pbd2->fw_ip_hdr_to_payload_w =
3675 hlen_w - ((sizeof(struct ipv6hdr)) >> 1);
3676 pbd_e2->data.tunnel_data.flags |=
3677 ETH_TUNNEL_DATA_IPV6_OUTER;
3678 }
3679
3680 pbd2->tcp_send_seq = bswab32(inner_tcp_hdr(skb)->seq);
3681
3682 pbd2->tcp_flags = pbd_tcp_flags(inner_tcp_hdr(skb));
3683
3684
3685 if (xmit_type & XMIT_CSUM_ENC_V4) {
3686 pbd2->hw_ip_id = bswab16(inner_ip_hdr(skb)->id);
3687
3688 pbd_e2->data.tunnel_data.pseudo_csum =
3689 bswab16(~csum_tcpudp_magic(
3690 inner_ip_hdr(skb)->saddr,
3691 inner_ip_hdr(skb)->daddr,
3692 0, IPPROTO_TCP, 0));
3693 } else {
3694 pbd_e2->data.tunnel_data.pseudo_csum =
3695 bswab16(~csum_ipv6_magic(
3696 &inner_ipv6_hdr(skb)->saddr,
3697 &inner_ipv6_hdr(skb)->daddr,
3698 0, IPPROTO_TCP, 0));
3699 }
3700
3701 outerip_off = (skb_network_header(skb) - skb->data) >> 1;
3702
3703 *global_data |=
3704 outerip_off |
3705 (outerip_len <<
3706 ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) |
3707 ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) <<
3708 ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT);
3709
3710 if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
3711 SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1);
3712 pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1;
3713 }
3714}
3715
3716static inline void bnx2x_set_ipv6_ext_e2(struct sk_buff *skb, u32 *parsing_data,
3717 u32 xmit_type)
3718{
3719 struct ipv6hdr *ipv6;
3720
3721 if (!(xmit_type & (XMIT_GSO_ENC_V6 | XMIT_GSO_V6)))
3722 return;
3723
3724 if (xmit_type & XMIT_GSO_ENC_V6)
3725 ipv6 = inner_ipv6_hdr(skb);
3726 else
3727 ipv6 = ipv6_hdr(skb);
3728
3729 if (ipv6->nexthdr == NEXTHDR_IPV6)
3730 *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR;
3731}
3732
3733
3734
3735
3736
3737netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
3738{
3739 struct bnx2x *bp = netdev_priv(dev);
3740
3741 struct netdev_queue *txq;
3742 struct bnx2x_fp_txdata *txdata;
3743 struct sw_tx_bd *tx_buf;
3744 struct eth_tx_start_bd *tx_start_bd, *first_bd;
3745 struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL;
3746 struct eth_tx_parse_bd_e1x *pbd_e1x = NULL;
3747 struct eth_tx_parse_bd_e2 *pbd_e2 = NULL;
3748 struct eth_tx_parse_2nd_bd *pbd2 = NULL;
3749 u32 pbd_e2_parsing_data = 0;
3750 u16 pkt_prod, bd_prod;
3751 int nbd, txq_index;
3752 dma_addr_t mapping;
3753 u32 xmit_type = bnx2x_xmit_type(bp, skb);
3754 int i;
3755 u8 hlen = 0;
3756 __le16 pkt_size = 0;
3757 struct ethhdr *eth;
3758 u8 mac_type = UNICAST_ADDRESS;
3759
3760#ifdef BNX2X_STOP_ON_ERROR
3761 if (unlikely(bp->panic))
3762 return NETDEV_TX_BUSY;
3763#endif
3764
3765 txq_index = skb_get_queue_mapping(skb);
3766 txq = netdev_get_tx_queue(dev, txq_index);
3767
3768 BUG_ON(txq_index >= MAX_ETH_TXQ_IDX(bp) + (CNIC_LOADED(bp) ? 1 : 0));
3769
3770 txdata = &bp->bnx2x_txq[txq_index];
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781 if (unlikely(bnx2x_tx_avail(bp, txdata) <
3782 skb_shinfo(skb)->nr_frags +
3783 BDS_PER_TX_PKT +
3784 NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) {
3785
3786 if (txdata->tx_ring_size == 0) {
3787 struct bnx2x_eth_q_stats *q_stats =
3788 bnx2x_fp_qstats(bp, txdata->parent_fp);
3789 q_stats->driver_filtered_tx_pkt++;
3790 dev_kfree_skb(skb);
3791 return NETDEV_TX_OK;
3792 }
3793 bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++;
3794 netif_tx_stop_queue(txq);
3795 BNX2X_ERR("BUG! Tx ring full when queue awake!\n");
3796
3797 return NETDEV_TX_BUSY;
3798 }
3799
3800 DP(NETIF_MSG_TX_QUEUED,
3801 "queue[%d]: SKB: summed %x protocol %x protocol(%x,%x) gso type %x xmit_type %x len %d\n",
3802 txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr,
3803 ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type,
3804 skb->len);
3805
3806 eth = (struct ethhdr *)skb->data;
3807
3808
3809 if (unlikely(is_multicast_ether_addr(eth->h_dest))) {
3810 if (is_broadcast_ether_addr(eth->h_dest))
3811 mac_type = BROADCAST_ADDRESS;
3812 else
3813 mac_type = MULTICAST_ADDRESS;
3814 }
3815
3816#if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT)
3817
3818
3819
3820 if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) {
3821
3822 bp->lin_cnt++;
3823 if (skb_linearize(skb) != 0) {
3824 DP(NETIF_MSG_TX_QUEUED,
3825 "SKB linearization failed - silently dropping this SKB\n");
3826 dev_kfree_skb_any(skb);
3827 return NETDEV_TX_OK;
3828 }
3829 }
3830#endif
3831
3832 mapping = dma_map_single(&bp->pdev->dev, skb->data,
3833 skb_headlen(skb), DMA_TO_DEVICE);
3834 if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) {
3835 DP(NETIF_MSG_TX_QUEUED,
3836 "SKB mapping failed - silently dropping this SKB\n");
3837 dev_kfree_skb_any(skb);
3838 return NETDEV_TX_OK;
3839 }
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852 pkt_prod = txdata->tx_pkt_prod;
3853 bd_prod = TX_BD(txdata->tx_bd_prod);
3854
3855
3856
3857
3858
3859 tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)];
3860 tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd;
3861 first_bd = tx_start_bd;
3862
3863 tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
3864
3865 if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
3866 if (!(bp->flags & TX_TIMESTAMPING_EN)) {
3867 bp->eth_stats.ptp_skip_tx_ts++;
3868 BNX2X_ERR("Tx timestamping was not enabled, this packet will not be timestamped\n");
3869 } else if (bp->ptp_tx_skb) {
3870 bp->eth_stats.ptp_skip_tx_ts++;
3871 netdev_err_once(bp->dev,
3872 "Device supports only a single outstanding packet to timestamp, this packet won't be timestamped\n");
3873 } else {
3874 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
3875
3876 bp->ptp_tx_skb = skb_get(skb);
3877 bp->ptp_tx_start = jiffies;
3878 schedule_work(&bp->ptp_task);
3879 }
3880 }
3881
3882
3883 tx_start_bd->general_data = 1 << ETH_TX_START_BD_HDR_NBDS_SHIFT;
3884
3885
3886 tx_buf->first_bd = txdata->tx_bd_prod;
3887 tx_buf->skb = skb;
3888 tx_buf->flags = 0;
3889
3890 DP(NETIF_MSG_TX_QUEUED,
3891 "sending pkt %u @%p next_idx %u bd %u @%p\n",
3892 pkt_prod, tx_buf, txdata->tx_pkt_prod, bd_prod, tx_start_bd);
3893
3894 if (skb_vlan_tag_present(skb)) {
3895 tx_start_bd->vlan_or_ethertype =
3896 cpu_to_le16(skb_vlan_tag_get(skb));
3897 tx_start_bd->bd_flags.as_bitfield |=
3898 (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT);
3899 } else {
3900
3901
3902
3903 u16 vlan_tci = 0;
3904#ifndef BNX2X_STOP_ON_ERROR
3905 if (IS_VF(bp)) {
3906#endif
3907
3908 if (__vlan_get_tag(skb, &vlan_tci)) {
3909 tx_start_bd->vlan_or_ethertype =
3910 cpu_to_le16(ntohs(eth->h_proto));
3911 } else {
3912 tx_start_bd->bd_flags.as_bitfield |=
3913 (X_ETH_INBAND_VLAN <<
3914 ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT);
3915 tx_start_bd->vlan_or_ethertype =
3916 cpu_to_le16(vlan_tci);
3917 }
3918#ifndef BNX2X_STOP_ON_ERROR
3919 } else {
3920
3921 tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod);
3922 }
3923#endif
3924 }
3925
3926 nbd = 2;
3927
3928
3929 bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
3930
3931 if (xmit_type & XMIT_CSUM)
3932 bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type);
3933
3934 if (!CHIP_IS_E1x(bp)) {
3935 pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2;
3936 memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2));
3937
3938 if (xmit_type & XMIT_CSUM_ENC) {
3939 u16 global_data = 0;
3940
3941
3942 hlen = bnx2x_set_pbd_csum_enc(bp, skb,
3943 &pbd_e2_parsing_data,
3944 xmit_type);
3945
3946
3947 bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
3948
3949 pbd2 = &txdata->tx_desc_ring[bd_prod].parse_2nd_bd;
3950
3951 memset(pbd2, 0, sizeof(*pbd2));
3952
3953 pbd_e2->data.tunnel_data.ip_hdr_start_inner_w =
3954 (skb_inner_network_header(skb) -
3955 skb->data) >> 1;
3956
3957 if (xmit_type & XMIT_GSO_ENC)
3958 bnx2x_update_pbds_gso_enc(skb, pbd_e2, pbd2,
3959 &global_data,
3960 xmit_type);
3961
3962 pbd2->global_data = cpu_to_le16(global_data);
3963
3964
3965 SET_FLAG(tx_start_bd->general_data,
3966 ETH_TX_START_BD_PARSE_NBDS, 1);
3967
3968 SET_FLAG(tx_start_bd->general_data,
3969 ETH_TX_START_BD_TUNNEL_EXIST, 1);
3970
3971 tx_buf->flags |= BNX2X_HAS_SECOND_PBD;
3972
3973 nbd++;
3974 } else if (xmit_type & XMIT_CSUM) {
3975
3976 hlen = bnx2x_set_pbd_csum_e2(bp, skb,
3977 &pbd_e2_parsing_data,
3978 xmit_type);
3979 }
3980
3981 bnx2x_set_ipv6_ext_e2(skb, &pbd_e2_parsing_data, xmit_type);
3982
3983
3984
3985 if (IS_VF(bp)) {
3986
3987 bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi,
3988 &pbd_e2->data.mac_addr.src_mid,
3989 &pbd_e2->data.mac_addr.src_lo,
3990 eth->h_source);
3991
3992 bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.dst_hi,
3993 &pbd_e2->data.mac_addr.dst_mid,
3994 &pbd_e2->data.mac_addr.dst_lo,
3995 eth->h_dest);
3996 } else {
3997 if (bp->flags & TX_SWITCHING)
3998 bnx2x_set_fw_mac_addr(
3999 &pbd_e2->data.mac_addr.dst_hi,
4000 &pbd_e2->data.mac_addr.dst_mid,
4001 &pbd_e2->data.mac_addr.dst_lo,
4002 eth->h_dest);
4003#ifdef BNX2X_STOP_ON_ERROR
4004
4005
4006
4007 bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi,
4008 &pbd_e2->data.mac_addr.src_mid,
4009 &pbd_e2->data.mac_addr.src_lo,
4010 eth->h_source);
4011#endif
4012 }
4013
4014 SET_FLAG(pbd_e2_parsing_data,
4015 ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type);
4016 } else {
4017 u16 global_data = 0;
4018 pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x;
4019 memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x));
4020
4021 if (xmit_type & XMIT_CSUM)
4022 hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type);
4023
4024 SET_FLAG(global_data,
4025 ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type);
4026 pbd_e1x->global_data |= cpu_to_le16(global_data);
4027 }
4028
4029
4030 tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping));
4031 tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping));
4032 tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb));
4033 pkt_size = tx_start_bd->nbytes;
4034
4035 DP(NETIF_MSG_TX_QUEUED,
4036 "first bd @%p addr (%x:%x) nbytes %d flags %x vlan %x\n",
4037 tx_start_bd, tx_start_bd->addr_hi, tx_start_bd->addr_lo,
4038 le16_to_cpu(tx_start_bd->nbytes),
4039 tx_start_bd->bd_flags.as_bitfield,
4040 le16_to_cpu(tx_start_bd->vlan_or_ethertype));
4041
4042 if (xmit_type & XMIT_GSO) {
4043
4044 DP(NETIF_MSG_TX_QUEUED,
4045 "TSO packet len %d hlen %d total len %d tso size %d\n",
4046 skb->len, hlen, skb_headlen(skb),
4047 skb_shinfo(skb)->gso_size);
4048
4049 tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO;
4050
4051 if (unlikely(skb_headlen(skb) > hlen)) {
4052 nbd++;
4053 bd_prod = bnx2x_tx_split(bp, txdata, tx_buf,
4054 &tx_start_bd, hlen,
4055 bd_prod);
4056 }
4057 if (!CHIP_IS_E1x(bp))
4058 pbd_e2_parsing_data |=
4059 (skb_shinfo(skb)->gso_size <<
4060 ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) &
4061 ETH_TX_PARSE_BD_E2_LSO_MSS;
4062 else
4063 bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type);
4064 }
4065
4066
4067
4068
4069 if (pbd_e2_parsing_data)
4070 pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data);
4071
4072 tx_data_bd = (struct eth_tx_bd *)tx_start_bd;
4073
4074
4075 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4076 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4077
4078 mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0,
4079 skb_frag_size(frag), DMA_TO_DEVICE);
4080 if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) {
4081 unsigned int pkts_compl = 0, bytes_compl = 0;
4082
4083 DP(NETIF_MSG_TX_QUEUED,
4084 "Unable to map page - dropping packet...\n");
4085
4086
4087
4088
4089
4090
4091 first_bd->nbd = cpu_to_le16(nbd);
4092 bnx2x_free_tx_pkt(bp, txdata,
4093 TX_BD(txdata->tx_pkt_prod),
4094 &pkts_compl, &bytes_compl);
4095 return NETDEV_TX_OK;
4096 }
4097
4098 bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
4099 tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd;
4100 if (total_pkt_bd == NULL)
4101 total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd;
4102
4103 tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping));
4104 tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping));
4105 tx_data_bd->nbytes = cpu_to_le16(skb_frag_size(frag));
4106 le16_add_cpu(&pkt_size, skb_frag_size(frag));
4107 nbd++;
4108
4109 DP(NETIF_MSG_TX_QUEUED,
4110 "frag %d bd @%p addr (%x:%x) nbytes %d\n",
4111 i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo,
4112 le16_to_cpu(tx_data_bd->nbytes));
4113 }
4114
4115 DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd);
4116
4117
4118 first_bd->nbd = cpu_to_le16(nbd);
4119
4120 bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
4121
4122
4123
4124
4125 if (TX_BD_POFF(bd_prod) < nbd)
4126 nbd++;
4127
4128
4129
4130
4131
4132
4133
4134
4135 if (total_pkt_bd != NULL)
4136 total_pkt_bd->total_pkt_bytes = pkt_size;
4137
4138 if (pbd_e1x)
4139 DP(NETIF_MSG_TX_QUEUED,
4140 "PBD (E1X) @%p ip_data %x ip_hlen %u ip_id %u lso_mss %u tcp_flags %x xsum %x seq %u hlen %u\n",
4141 pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w,
4142 pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags,
4143 pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq,
4144 le16_to_cpu(pbd_e1x->total_hlen_w));
4145 if (pbd_e2)
4146 DP(NETIF_MSG_TX_QUEUED,
4147 "PBD (E2) @%p dst %x %x %x src %x %x %x parsing_data %x\n",
4148 pbd_e2,
4149 pbd_e2->data.mac_addr.dst_hi,
4150 pbd_e2->data.mac_addr.dst_mid,
4151 pbd_e2->data.mac_addr.dst_lo,
4152 pbd_e2->data.mac_addr.src_hi,
4153 pbd_e2->data.mac_addr.src_mid,
4154 pbd_e2->data.mac_addr.src_lo,
4155 pbd_e2->parsing_data);
4156 DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod);
4157
4158 netdev_tx_sent_queue(txq, skb->len);
4159
4160 skb_tx_timestamp(skb);
4161
4162 txdata->tx_pkt_prod++;
4163
4164
4165
4166
4167
4168
4169
4170 wmb();
4171
4172 txdata->tx_db.data.prod += nbd;
4173
4174 wmb();
4175
4176 DOORBELL_RELAXED(bp, txdata->cid, txdata->tx_db.raw);
4177
4178 txdata->tx_bd_prod += nbd;
4179
4180 if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) {
4181 netif_tx_stop_queue(txq);
4182
4183
4184
4185
4186 smp_mb();
4187
4188 bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++;
4189 if (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT)
4190 netif_tx_wake_queue(txq);
4191 }
4192 txdata->tx_pkt++;
4193
4194 return NETDEV_TX_OK;
4195}
4196
4197void bnx2x_get_c2s_mapping(struct bnx2x *bp, u8 *c2s_map, u8 *c2s_default)
4198{
4199 int mfw_vn = BP_FW_MB_IDX(bp);
4200 u32 tmp;
4201
4202
4203 if (!IS_MF_BD(bp)) {
4204 int i;
4205
4206 for (i = 0; i < BNX2X_MAX_PRIORITY; i++)
4207 c2s_map[i] = i;
4208 *c2s_default = 0;
4209
4210 return;
4211 }
4212
4213 tmp = SHMEM2_RD(bp, c2s_pcp_map_lower[mfw_vn]);
4214 tmp = (__force u32)be32_to_cpu((__force __be32)tmp);
4215 c2s_map[0] = tmp & 0xff;
4216 c2s_map[1] = (tmp >> 8) & 0xff;
4217 c2s_map[2] = (tmp >> 16) & 0xff;
4218 c2s_map[3] = (tmp >> 24) & 0xff;
4219
4220 tmp = SHMEM2_RD(bp, c2s_pcp_map_upper[mfw_vn]);
4221 tmp = (__force u32)be32_to_cpu((__force __be32)tmp);
4222 c2s_map[4] = tmp & 0xff;
4223 c2s_map[5] = (tmp >> 8) & 0xff;
4224 c2s_map[6] = (tmp >> 16) & 0xff;
4225 c2s_map[7] = (tmp >> 24) & 0xff;
4226
4227 tmp = SHMEM2_RD(bp, c2s_pcp_map_default[mfw_vn]);
4228 tmp = (__force u32)be32_to_cpu((__force __be32)tmp);
4229 *c2s_default = (tmp >> (8 * mfw_vn)) & 0xff;
4230}
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240int bnx2x_setup_tc(struct net_device *dev, u8 num_tc)
4241{
4242 struct bnx2x *bp = netdev_priv(dev);
4243 u8 c2s_map[BNX2X_MAX_PRIORITY], c2s_def;
4244 int cos, prio, count, offset;
4245
4246
4247 ASSERT_RTNL();
4248
4249
4250 if (!num_tc) {
4251 netdev_reset_tc(dev);
4252 return 0;
4253 }
4254
4255
4256 if (num_tc > bp->max_cos) {
4257 BNX2X_ERR("support for too many traffic classes requested: %d. Max supported is %d\n",
4258 num_tc, bp->max_cos);
4259 return -EINVAL;
4260 }
4261
4262
4263 if (netdev_set_num_tc(dev, num_tc)) {
4264 BNX2X_ERR("failed to declare %d traffic classes\n", num_tc);
4265 return -EINVAL;
4266 }
4267
4268 bnx2x_get_c2s_mapping(bp, c2s_map, &c2s_def);
4269
4270
4271 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
4272 int outer_prio = c2s_map[prio];
4273
4274 netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[outer_prio]);
4275 DP(BNX2X_MSG_SP | NETIF_MSG_IFUP,
4276 "mapping priority %d to tc %d\n",
4277 outer_prio, bp->prio_to_cos[outer_prio]);
4278 }
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291 for (cos = 0; cos < bp->max_cos; cos++) {
4292 count = BNX2X_NUM_ETH_QUEUES(bp);
4293 offset = cos * BNX2X_NUM_NON_CNIC_QUEUES(bp);
4294 netdev_set_tc_queue(dev, cos, count, offset);
4295 DP(BNX2X_MSG_SP | NETIF_MSG_IFUP,
4296 "mapping tc %d to offset %d count %d\n",
4297 cos, offset, count);
4298 }
4299
4300 return 0;
4301}
4302
4303int __bnx2x_setup_tc(struct net_device *dev, enum tc_setup_type type,
4304 void *type_data)
4305{
4306 struct tc_mqprio_qopt *mqprio = type_data;
4307
4308 if (type != TC_SETUP_QDISC_MQPRIO)
4309 return -EOPNOTSUPP;
4310
4311 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
4312
4313 return bnx2x_setup_tc(dev, mqprio->num_tc);
4314}
4315
4316
4317int bnx2x_change_mac_addr(struct net_device *dev, void *p)
4318{
4319 struct sockaddr *addr = p;
4320 struct bnx2x *bp = netdev_priv(dev);
4321 int rc = 0;
4322
4323 if (!is_valid_ether_addr(addr->sa_data)) {
4324 BNX2X_ERR("Requested MAC address is not valid\n");
4325 return -EINVAL;
4326 }
4327
4328 if (IS_MF_STORAGE_ONLY(bp)) {
4329 BNX2X_ERR("Can't change address on STORAGE ONLY function\n");
4330 return -EINVAL;
4331 }
4332
4333 if (netif_running(dev)) {
4334 rc = bnx2x_set_eth_mac(bp, false);
4335 if (rc)
4336 return rc;
4337 }
4338
4339 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4340
4341 if (netif_running(dev))
4342 rc = bnx2x_set_eth_mac(bp, true);
4343
4344 if (IS_PF(bp) && SHMEM2_HAS(bp, curr_cfg))
4345 SHMEM2_WR(bp, curr_cfg, CURR_CFG_MET_OS);
4346
4347 return rc;
4348}
4349
4350static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index)
4351{
4352 union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk);
4353 struct bnx2x_fastpath *fp = &bp->fp[fp_index];
4354 u8 cos;
4355
4356
4357
4358 if (IS_FCOE_IDX(fp_index)) {
4359 memset(sb, 0, sizeof(union host_hc_status_block));
4360 fp->status_blk_mapping = 0;
4361 } else {
4362
4363 if (!CHIP_IS_E1x(bp))
4364 BNX2X_PCI_FREE(sb->e2_sb,
4365 bnx2x_fp(bp, fp_index,
4366 status_blk_mapping),
4367 sizeof(struct host_hc_status_block_e2));
4368 else
4369 BNX2X_PCI_FREE(sb->e1x_sb,
4370 bnx2x_fp(bp, fp_index,
4371 status_blk_mapping),
4372 sizeof(struct host_hc_status_block_e1x));
4373 }
4374
4375
4376 if (!skip_rx_queue(bp, fp_index)) {
4377 bnx2x_free_rx_bds(fp);
4378
4379
4380 BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring));
4381 BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring),
4382 bnx2x_fp(bp, fp_index, rx_desc_mapping),
4383 sizeof(struct eth_rx_bd) * NUM_RX_BD);
4384
4385 BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring),
4386 bnx2x_fp(bp, fp_index, rx_comp_mapping),
4387 sizeof(struct eth_fast_path_rx_cqe) *
4388 NUM_RCQ_BD);
4389
4390
4391 BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring));
4392 BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring),
4393 bnx2x_fp(bp, fp_index, rx_sge_mapping),
4394 BCM_PAGE_SIZE * NUM_RX_SGE_PAGES);
4395 }
4396
4397
4398 if (!skip_tx_queue(bp, fp_index)) {
4399
4400 for_each_cos_in_tx_queue(fp, cos) {
4401 struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos];
4402
4403 DP(NETIF_MSG_IFDOWN,
4404 "freeing tx memory of fp %d cos %d cid %d\n",
4405 fp_index, cos, txdata->cid);
4406
4407 BNX2X_FREE(txdata->tx_buf_ring);
4408 BNX2X_PCI_FREE(txdata->tx_desc_ring,
4409 txdata->tx_desc_mapping,
4410 sizeof(union eth_tx_bd_types) * NUM_TX_BD);
4411 }
4412 }
4413
4414}
4415
4416static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp)
4417{
4418 int i;
4419 for_each_cnic_queue(bp, i)
4420 bnx2x_free_fp_mem_at(bp, i);
4421}
4422
4423void bnx2x_free_fp_mem(struct bnx2x *bp)
4424{
4425 int i;
4426 for_each_eth_queue(bp, i)
4427 bnx2x_free_fp_mem_at(bp, i);
4428}
4429
4430static void set_sb_shortcuts(struct bnx2x *bp, int index)
4431{
4432 union host_hc_status_block status_blk = bnx2x_fp(bp, index, status_blk);
4433 if (!CHIP_IS_E1x(bp)) {
4434 bnx2x_fp(bp, index, sb_index_values) =
4435 (__le16 *)status_blk.e2_sb->sb.index_values;
4436 bnx2x_fp(bp, index, sb_running_index) =
4437 (__le16 *)status_blk.e2_sb->sb.running_index;
4438 } else {
4439 bnx2x_fp(bp, index, sb_index_values) =
4440 (__le16 *)status_blk.e1x_sb->sb.index_values;
4441 bnx2x_fp(bp, index, sb_running_index) =
4442 (__le16 *)status_blk.e1x_sb->sb.running_index;
4443 }
4444}
4445
4446
4447static int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp,
4448 int rx_ring_size)
4449{
4450 struct bnx2x *bp = fp->bp;
4451 u16 ring_prod, cqe_ring_prod;
4452 int i, failure_cnt = 0;
4453
4454 fp->rx_comp_cons = 0;
4455 cqe_ring_prod = ring_prod = 0;
4456
4457
4458
4459
4460 for (i = 0; i < rx_ring_size; i++) {
4461 if (bnx2x_alloc_rx_data(bp, fp, ring_prod, GFP_KERNEL) < 0) {
4462 failure_cnt++;
4463 continue;
4464 }
4465 ring_prod = NEXT_RX_IDX(ring_prod);
4466 cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod);
4467 WARN_ON(ring_prod <= (i - failure_cnt));
4468 }
4469
4470 if (failure_cnt)
4471 BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n",
4472 i - failure_cnt, fp->index);
4473
4474 fp->rx_bd_prod = ring_prod;
4475
4476 fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT,
4477 cqe_ring_prod);
4478
4479 bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed += failure_cnt;
4480
4481 return i - failure_cnt;
4482}
4483
4484static void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp)
4485{
4486 int i;
4487
4488 for (i = 1; i <= NUM_RCQ_RINGS; i++) {
4489 struct eth_rx_cqe_next_page *nextpg;
4490
4491 nextpg = (struct eth_rx_cqe_next_page *)
4492 &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1];
4493 nextpg->addr_hi =
4494 cpu_to_le32(U64_HI(fp->rx_comp_mapping +
4495 BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS)));
4496 nextpg->addr_lo =
4497 cpu_to_le32(U64_LO(fp->rx_comp_mapping +
4498 BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS)));
4499 }
4500}
4501
4502static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index)
4503{
4504 union host_hc_status_block *sb;
4505 struct bnx2x_fastpath *fp = &bp->fp[index];
4506 int ring_size = 0;
4507 u8 cos;
4508 int rx_ring_size = 0;
4509
4510 if (!bp->rx_ring_size && IS_MF_STORAGE_ONLY(bp)) {
4511 rx_ring_size = MIN_RX_SIZE_NONTPA;
4512 bp->rx_ring_size = rx_ring_size;
4513 } else if (!bp->rx_ring_size) {
4514 rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp);
4515
4516 if (CHIP_IS_E3(bp)) {
4517 u32 cfg = SHMEM_RD(bp,
4518 dev_info.port_hw_config[BP_PORT(bp)].
4519 default_cfg);
4520
4521
4522 if ((cfg & PORT_HW_CFG_NET_SERDES_IF_MASK) ==
4523 PORT_HW_CFG_NET_SERDES_IF_SGMII)
4524 rx_ring_size /= 10;
4525 }
4526
4527
4528 rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA :
4529 MIN_RX_SIZE_TPA, rx_ring_size);
4530
4531 bp->rx_ring_size = rx_ring_size;
4532 } else
4533 rx_ring_size = bp->rx_ring_size;
4534
4535 DP(BNX2X_MSG_SP, "calculated rx_ring_size %d\n", rx_ring_size);
4536
4537
4538 sb = &bnx2x_fp(bp, index, status_blk);
4539
4540 if (!IS_FCOE_IDX(index)) {
4541
4542 if (!CHIP_IS_E1x(bp)) {
4543 sb->e2_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping),
4544 sizeof(struct host_hc_status_block_e2));
4545 if (!sb->e2_sb)
4546 goto alloc_mem_err;
4547 } else {
4548 sb->e1x_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping),
4549 sizeof(struct host_hc_status_block_e1x));
4550 if (!sb->e1x_sb)
4551 goto alloc_mem_err;
4552 }
4553 }
4554
4555
4556
4557
4558 if (!IS_FCOE_IDX(index))
4559 set_sb_shortcuts(bp, index);
4560
4561
4562 if (!skip_tx_queue(bp, index)) {
4563
4564 for_each_cos_in_tx_queue(fp, cos) {
4565 struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos];
4566
4567 DP(NETIF_MSG_IFUP,
4568 "allocating tx memory of fp %d cos %d\n",
4569 index, cos);
4570
4571 txdata->tx_buf_ring = kcalloc(NUM_TX_BD,
4572 sizeof(struct sw_tx_bd),
4573 GFP_KERNEL);
4574 if (!txdata->tx_buf_ring)
4575 goto alloc_mem_err;
4576 txdata->tx_desc_ring = BNX2X_PCI_ALLOC(&txdata->tx_desc_mapping,
4577 sizeof(union eth_tx_bd_types) * NUM_TX_BD);
4578 if (!txdata->tx_desc_ring)
4579 goto alloc_mem_err;
4580 }
4581 }
4582
4583
4584 if (!skip_rx_queue(bp, index)) {
4585
4586 bnx2x_fp(bp, index, rx_buf_ring) =
4587 kcalloc(NUM_RX_BD, sizeof(struct sw_rx_bd), GFP_KERNEL);
4588 if (!bnx2x_fp(bp, index, rx_buf_ring))
4589 goto alloc_mem_err;
4590 bnx2x_fp(bp, index, rx_desc_ring) =
4591 BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_desc_mapping),
4592 sizeof(struct eth_rx_bd) * NUM_RX_BD);
4593 if (!bnx2x_fp(bp, index, rx_desc_ring))
4594 goto alloc_mem_err;
4595
4596
4597 bnx2x_fp(bp, index, rx_comp_ring) =
4598 BNX2X_PCI_FALLOC(&bnx2x_fp(bp, index, rx_comp_mapping),
4599 sizeof(struct eth_fast_path_rx_cqe) * NUM_RCQ_BD);
4600 if (!bnx2x_fp(bp, index, rx_comp_ring))
4601 goto alloc_mem_err;
4602
4603
4604 bnx2x_fp(bp, index, rx_page_ring) =
4605 kcalloc(NUM_RX_SGE, sizeof(struct sw_rx_page),
4606 GFP_KERNEL);
4607 if (!bnx2x_fp(bp, index, rx_page_ring))
4608 goto alloc_mem_err;
4609 bnx2x_fp(bp, index, rx_sge_ring) =
4610 BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_sge_mapping),
4611 BCM_PAGE_SIZE * NUM_RX_SGE_PAGES);
4612 if (!bnx2x_fp(bp, index, rx_sge_ring))
4613 goto alloc_mem_err;
4614
4615 bnx2x_set_next_page_rx_bd(fp);
4616
4617
4618 bnx2x_set_next_page_rx_cq(fp);
4619
4620
4621 ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size);
4622 if (ring_size < rx_ring_size)
4623 goto alloc_mem_err;
4624 }
4625
4626 return 0;
4627
4628
4629alloc_mem_err:
4630 BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n",
4631 index, ring_size);
4632
4633
4634
4635
4636 if (ring_size < (fp->mode == TPA_MODE_DISABLED ?
4637 MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) {
4638
4639 bnx2x_free_fp_mem_at(bp, index);
4640 return -ENOMEM;
4641 }
4642 return 0;
4643}
4644
4645static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp)
4646{
4647 if (!NO_FCOE(bp))
4648
4649 if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX(bp)))
4650
4651
4652
4653 return -ENOMEM;
4654
4655 return 0;
4656}
4657
4658static int bnx2x_alloc_fp_mem(struct bnx2x *bp)
4659{
4660 int i;
4661
4662
4663
4664
4665
4666
4667 if (bnx2x_alloc_fp_mem_at(bp, 0))
4668 return -ENOMEM;
4669
4670
4671 for_each_nondefault_eth_queue(bp, i)
4672 if (bnx2x_alloc_fp_mem_at(bp, i))
4673 break;
4674
4675
4676 if (i != BNX2X_NUM_ETH_QUEUES(bp)) {
4677 int delta = BNX2X_NUM_ETH_QUEUES(bp) - i;
4678
4679 WARN_ON(delta < 0);
4680 bnx2x_shrink_eth_fp(bp, delta);
4681 if (CNIC_SUPPORT(bp))
4682
4683
4684
4685
4686
4687
4688 bnx2x_move_fp(bp, FCOE_IDX(bp), FCOE_IDX(bp) - delta);
4689 bp->num_ethernet_queues -= delta;
4690 bp->num_queues = bp->num_ethernet_queues +
4691 bp->num_cnic_queues;
4692 BNX2X_ERR("Adjusted num of queues from %d to %d\n",
4693 bp->num_queues + delta, bp->num_queues);
4694 }
4695
4696 return 0;
4697}
4698
4699void bnx2x_free_mem_bp(struct bnx2x *bp)
4700{
4701 int i;
4702
4703 for (i = 0; i < bp->fp_array_size; i++)
4704 kfree(bp->fp[i].tpa_info);
4705 kfree(bp->fp);
4706 kfree(bp->sp_objs);
4707 kfree(bp->fp_stats);
4708 kfree(bp->bnx2x_txq);
4709 kfree(bp->msix_table);
4710 kfree(bp->ilt);
4711}
4712
4713int bnx2x_alloc_mem_bp(struct bnx2x *bp)
4714{
4715 struct bnx2x_fastpath *fp;
4716 struct msix_entry *tbl;
4717 struct bnx2x_ilt *ilt;
4718 int msix_table_size = 0;
4719 int fp_array_size, txq_array_size;
4720 int i;
4721
4722
4723
4724
4725
4726 msix_table_size = bp->igu_sb_cnt;
4727 if (IS_PF(bp))
4728 msix_table_size++;
4729 BNX2X_DEV_INFO("msix_table_size %d\n", msix_table_size);
4730
4731
4732 fp_array_size = BNX2X_MAX_RSS_COUNT(bp) + CNIC_SUPPORT(bp);
4733 bp->fp_array_size = fp_array_size;
4734 BNX2X_DEV_INFO("fp_array_size %d\n", bp->fp_array_size);
4735
4736 fp = kcalloc(bp->fp_array_size, sizeof(*fp), GFP_KERNEL);
4737 if (!fp)
4738 goto alloc_err;
4739 for (i = 0; i < bp->fp_array_size; i++) {
4740 fp[i].tpa_info =
4741 kcalloc(ETH_MAX_AGGREGATION_QUEUES_E1H_E2,
4742 sizeof(struct bnx2x_agg_info), GFP_KERNEL);
4743 if (!(fp[i].tpa_info))
4744 goto alloc_err;
4745 }
4746
4747 bp->fp = fp;
4748
4749
4750 bp->sp_objs = kcalloc(bp->fp_array_size, sizeof(struct bnx2x_sp_objs),
4751 GFP_KERNEL);
4752 if (!bp->sp_objs)
4753 goto alloc_err;
4754
4755
4756 bp->fp_stats = kcalloc(bp->fp_array_size, sizeof(struct bnx2x_fp_stats),
4757 GFP_KERNEL);
4758 if (!bp->fp_stats)
4759 goto alloc_err;
4760
4761
4762 txq_array_size =
4763 BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + CNIC_SUPPORT(bp);
4764 BNX2X_DEV_INFO("txq_array_size %d", txq_array_size);
4765
4766 bp->bnx2x_txq = kcalloc(txq_array_size, sizeof(struct bnx2x_fp_txdata),
4767 GFP_KERNEL);
4768 if (!bp->bnx2x_txq)
4769 goto alloc_err;
4770
4771
4772 tbl = kcalloc(msix_table_size, sizeof(*tbl), GFP_KERNEL);
4773 if (!tbl)
4774 goto alloc_err;
4775 bp->msix_table = tbl;
4776
4777
4778 ilt = kzalloc(sizeof(*ilt), GFP_KERNEL);
4779 if (!ilt)
4780 goto alloc_err;
4781 bp->ilt = ilt;
4782
4783 return 0;
4784alloc_err:
4785 bnx2x_free_mem_bp(bp);
4786 return -ENOMEM;
4787}
4788
4789int bnx2x_reload_if_running(struct net_device *dev)
4790{
4791 struct bnx2x *bp = netdev_priv(dev);
4792
4793 if (unlikely(!netif_running(dev)))
4794 return 0;
4795
4796 bnx2x_nic_unload(bp, UNLOAD_NORMAL, true);
4797 return bnx2x_nic_load(bp, LOAD_NORMAL);
4798}
4799
4800int bnx2x_get_cur_phy_idx(struct bnx2x *bp)
4801{
4802 u32 sel_phy_idx = 0;
4803 if (bp->link_params.num_phys <= 1)
4804 return INT_PHY;
4805
4806 if (bp->link_vars.link_up) {
4807 sel_phy_idx = EXT_PHY1;
4808
4809 if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) &&
4810 (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE))
4811 sel_phy_idx = EXT_PHY2;
4812 } else {
4813
4814 switch (bnx2x_phy_selection(&bp->link_params)) {
4815 case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
4816 case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
4817 case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
4818 sel_phy_idx = EXT_PHY1;
4819 break;
4820 case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
4821 case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
4822 sel_phy_idx = EXT_PHY2;
4823 break;
4824 }
4825 }
4826
4827 return sel_phy_idx;
4828}
4829int bnx2x_get_link_cfg_idx(struct bnx2x *bp)
4830{
4831 u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp);
4832
4833
4834
4835
4836
4837
4838 if (bp->link_params.multi_phy_config &
4839 PORT_HW_CFG_PHY_SWAPPED_ENABLED) {
4840 if (sel_phy_idx == EXT_PHY1)
4841 sel_phy_idx = EXT_PHY2;
4842 else if (sel_phy_idx == EXT_PHY2)
4843 sel_phy_idx = EXT_PHY1;
4844 }
4845 return LINK_CONFIG_IDX(sel_phy_idx);
4846}
4847
4848#ifdef NETDEV_FCOE_WWNN
4849int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
4850{
4851 struct bnx2x *bp = netdev_priv(dev);
4852 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
4853
4854 switch (type) {
4855 case NETDEV_FCOE_WWNN:
4856 *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi,
4857 cp->fcoe_wwn_node_name_lo);
4858 break;
4859 case NETDEV_FCOE_WWPN:
4860 *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi,
4861 cp->fcoe_wwn_port_name_lo);
4862 break;
4863 default:
4864 BNX2X_ERR("Wrong WWN type requested - %d\n", type);
4865 return -EINVAL;
4866 }
4867
4868 return 0;
4869}
4870#endif
4871
4872
4873int bnx2x_change_mtu(struct net_device *dev, int new_mtu)
4874{
4875 struct bnx2x *bp = netdev_priv(dev);
4876
4877 if (pci_num_vf(bp->pdev)) {
4878 DP(BNX2X_MSG_IOV, "VFs are enabled, can not change MTU\n");
4879 return -EPERM;
4880 }
4881
4882 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
4883 BNX2X_ERR("Can't perform change MTU during parity recovery\n");
4884 return -EAGAIN;
4885 }
4886
4887
4888
4889
4890
4891 dev->mtu = new_mtu;
4892
4893 if (!bnx2x_mtu_allows_gro(new_mtu))
4894 dev->features &= ~NETIF_F_GRO_HW;
4895
4896 if (IS_PF(bp) && SHMEM2_HAS(bp, curr_cfg))
4897 SHMEM2_WR(bp, curr_cfg, CURR_CFG_MET_OS);
4898
4899 return bnx2x_reload_if_running(dev);
4900}
4901
4902netdev_features_t bnx2x_fix_features(struct net_device *dev,
4903 netdev_features_t features)
4904{
4905 struct bnx2x *bp = netdev_priv(dev);
4906
4907 if (pci_num_vf(bp->pdev)) {
4908 netdev_features_t changed = dev->features ^ features;
4909
4910
4911
4912
4913 if (!(features & NETIF_F_RXCSUM) && !bp->disable_tpa) {
4914 features &= ~NETIF_F_RXCSUM;
4915 features |= dev->features & NETIF_F_RXCSUM;
4916 }
4917
4918 if (changed & NETIF_F_LOOPBACK) {
4919 features &= ~NETIF_F_LOOPBACK;
4920 features |= dev->features & NETIF_F_LOOPBACK;
4921 }
4922 }
4923
4924
4925 if (!(features & NETIF_F_RXCSUM))
4926 features &= ~NETIF_F_LRO;
4927
4928 if (!(features & NETIF_F_GRO) || !bnx2x_mtu_allows_gro(dev->mtu))
4929 features &= ~NETIF_F_GRO_HW;
4930 if (features & NETIF_F_GRO_HW)
4931 features &= ~NETIF_F_LRO;
4932
4933 return features;
4934}
4935
4936int bnx2x_set_features(struct net_device *dev, netdev_features_t features)
4937{
4938 struct bnx2x *bp = netdev_priv(dev);
4939 netdev_features_t changes = features ^ dev->features;
4940 bool bnx2x_reload = false;
4941 int rc;
4942
4943
4944 if (!pci_num_vf(bp->pdev)) {
4945 if (features & NETIF_F_LOOPBACK) {
4946 if (bp->link_params.loopback_mode != LOOPBACK_BMAC) {
4947 bp->link_params.loopback_mode = LOOPBACK_BMAC;
4948 bnx2x_reload = true;
4949 }
4950 } else {
4951 if (bp->link_params.loopback_mode != LOOPBACK_NONE) {
4952 bp->link_params.loopback_mode = LOOPBACK_NONE;
4953 bnx2x_reload = true;
4954 }
4955 }
4956 }
4957
4958
4959 changes &= ~NETIF_F_GRO;
4960
4961 if (changes)
4962 bnx2x_reload = true;
4963
4964 if (bnx2x_reload) {
4965 if (bp->recovery_state == BNX2X_RECOVERY_DONE) {
4966 dev->features = features;
4967 rc = bnx2x_reload_if_running(dev);
4968 return rc ? rc : 1;
4969 }
4970
4971 }
4972
4973 return 0;
4974}
4975
4976void bnx2x_tx_timeout(struct net_device *dev, unsigned int txqueue)
4977{
4978 struct bnx2x *bp = netdev_priv(dev);
4979
4980
4981
4982
4983 if (!bp->panic)
4984#ifndef BNX2X_STOP_ON_ERROR
4985 bnx2x_panic_dump(bp, false);
4986#else
4987 bnx2x_panic();
4988#endif
4989
4990
4991 bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_TX_TIMEOUT, 0);
4992}
4993
4994static int __maybe_unused bnx2x_suspend(struct device *dev_d)
4995{
4996 struct pci_dev *pdev = to_pci_dev(dev_d);
4997 struct net_device *dev = pci_get_drvdata(pdev);
4998 struct bnx2x *bp;
4999
5000 if (!dev) {
5001 dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
5002 return -ENODEV;
5003 }
5004 bp = netdev_priv(dev);
5005
5006 rtnl_lock();
5007
5008 if (!netif_running(dev)) {
5009 rtnl_unlock();
5010 return 0;
5011 }
5012
5013 netif_device_detach(dev);
5014
5015 bnx2x_nic_unload(bp, UNLOAD_CLOSE, false);
5016
5017 rtnl_unlock();
5018
5019 return 0;
5020}
5021
5022static int __maybe_unused bnx2x_resume(struct device *dev_d)
5023{
5024 struct pci_dev *pdev = to_pci_dev(dev_d);
5025 struct net_device *dev = pci_get_drvdata(pdev);
5026 struct bnx2x *bp;
5027 int rc;
5028
5029 if (!dev) {
5030 dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
5031 return -ENODEV;
5032 }
5033 bp = netdev_priv(dev);
5034
5035 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
5036 BNX2X_ERR("Handling parity error recovery. Try again later\n");
5037 return -EAGAIN;
5038 }
5039
5040 rtnl_lock();
5041
5042 if (!netif_running(dev)) {
5043 rtnl_unlock();
5044 return 0;
5045 }
5046
5047 netif_device_attach(dev);
5048
5049 rc = bnx2x_nic_load(bp, LOAD_OPEN);
5050
5051 rtnl_unlock();
5052
5053 return rc;
5054}
5055
5056SIMPLE_DEV_PM_OPS(bnx2x_pm_ops, bnx2x_suspend, bnx2x_resume);
5057
5058void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt,
5059 u32 cid)
5060{
5061 if (!cxt) {
5062 BNX2X_ERR("bad context pointer %p\n", cxt);
5063 return;
5064 }
5065
5066
5067 cxt->ustorm_ag_context.cdu_usage =
5068 CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid),
5069 CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE);
5070
5071 cxt->xstorm_ag_context.cdu_reserved =
5072 CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid),
5073 CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE);
5074}
5075
5076static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port,
5077 u8 fw_sb_id, u8 sb_index,
5078 u8 ticks)
5079{
5080 u32 addr = BAR_CSTRORM_INTMEM +
5081 CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index);
5082 REG_WR8(bp, addr, ticks);
5083 DP(NETIF_MSG_IFUP,
5084 "port %x fw_sb_id %d sb_index %d ticks %d\n",
5085 port, fw_sb_id, sb_index, ticks);
5086}
5087
5088static void storm_memset_hc_disable(struct bnx2x *bp, u8 port,
5089 u16 fw_sb_id, u8 sb_index,
5090 u8 disable)
5091{
5092 u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT);
5093 u32 addr = BAR_CSTRORM_INTMEM +
5094 CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index);
5095 u8 flags = REG_RD8(bp, addr);
5096
5097 flags &= ~HC_INDEX_DATA_HC_ENABLED;
5098 flags |= enable_flag;
5099 REG_WR8(bp, addr, flags);
5100 DP(NETIF_MSG_IFUP,
5101 "port %x fw_sb_id %d sb_index %d disable %d\n",
5102 port, fw_sb_id, sb_index, disable);
5103}
5104
5105void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id,
5106 u8 sb_index, u8 disable, u16 usec)
5107{
5108 int port = BP_PORT(bp);
5109 u8 ticks = usec / BNX2X_BTR;
5110
5111 storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks);
5112
5113 disable = disable ? 1 : (usec ? 0 : 1);
5114 storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable);
5115}
5116
5117void bnx2x_schedule_sp_rtnl(struct bnx2x *bp, enum sp_rtnl_flag flag,
5118 u32 verbose)
5119{
5120 smp_mb__before_atomic();
5121 set_bit(flag, &bp->sp_rtnl_state);
5122 smp_mb__after_atomic();
5123 DP((BNX2X_MSG_SP | verbose), "Scheduling sp_rtnl task [Flag: %d]\n",
5124 flag);
5125 schedule_delayed_work(&bp->sp_rtnl_task, 0);
5126}
5127