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be2net: changes for BE3 native mode support
[deliverable/linux.git] / drivers / net / benet / be_main.c
1 /*
2 * Copyright (C) 2005 - 2010 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18 #include "be.h"
19 #include "be_cmds.h"
20 #include <asm/div64.h>
21
22 MODULE_VERSION(DRV_VER);
23 MODULE_DEVICE_TABLE(pci, be_dev_ids);
24 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
25 MODULE_AUTHOR("ServerEngines Corporation");
26 MODULE_LICENSE("GPL");
27
28 static ushort rx_frag_size = 2048;
29 static unsigned int num_vfs;
30 module_param(rx_frag_size, ushort, S_IRUGO);
31 module_param(num_vfs, uint, S_IRUGO);
32 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
33 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
34
35 static bool multi_rxq = true;
36 module_param(multi_rxq, bool, S_IRUGO | S_IWUSR);
37 MODULE_PARM_DESC(multi_rxq, "Multi Rx Queue support. Enabled by default");
38
39 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
40 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
41 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
42 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
43 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
44 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
45 { 0 }
46 };
47 MODULE_DEVICE_TABLE(pci, be_dev_ids);
48 /* UE Status Low CSR */
49 static char *ue_status_low_desc[] = {
50 "CEV",
51 "CTX",
52 "DBUF",
53 "ERX",
54 "Host",
55 "MPU",
56 "NDMA",
57 "PTC ",
58 "RDMA ",
59 "RXF ",
60 "RXIPS ",
61 "RXULP0 ",
62 "RXULP1 ",
63 "RXULP2 ",
64 "TIM ",
65 "TPOST ",
66 "TPRE ",
67 "TXIPS ",
68 "TXULP0 ",
69 "TXULP1 ",
70 "UC ",
71 "WDMA ",
72 "TXULP2 ",
73 "HOST1 ",
74 "P0_OB_LINK ",
75 "P1_OB_LINK ",
76 "HOST_GPIO ",
77 "MBOX ",
78 "AXGMAC0",
79 "AXGMAC1",
80 "JTAG",
81 "MPU_INTPEND"
82 };
83 /* UE Status High CSR */
84 static char *ue_status_hi_desc[] = {
85 "LPCMEMHOST",
86 "MGMT_MAC",
87 "PCS0ONLINE",
88 "MPU_IRAM",
89 "PCS1ONLINE",
90 "PCTL0",
91 "PCTL1",
92 "PMEM",
93 "RR",
94 "TXPB",
95 "RXPP",
96 "XAUI",
97 "TXP",
98 "ARM",
99 "IPC",
100 "HOST2",
101 "HOST3",
102 "HOST4",
103 "HOST5",
104 "HOST6",
105 "HOST7",
106 "HOST8",
107 "HOST9",
108 "NETC"
109 "Unknown",
110 "Unknown",
111 "Unknown",
112 "Unknown",
113 "Unknown",
114 "Unknown",
115 "Unknown",
116 "Unknown"
117 };
118
119 static inline bool be_multi_rxq(struct be_adapter *adapter)
120 {
121 return (adapter->num_rx_qs > 1);
122 }
123
124 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
125 {
126 struct be_dma_mem *mem = &q->dma_mem;
127 if (mem->va)
128 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
129 mem->dma);
130 }
131
132 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
133 u16 len, u16 entry_size)
134 {
135 struct be_dma_mem *mem = &q->dma_mem;
136
137 memset(q, 0, sizeof(*q));
138 q->len = len;
139 q->entry_size = entry_size;
140 mem->size = len * entry_size;
141 mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
142 GFP_KERNEL);
143 if (!mem->va)
144 return -1;
145 memset(mem->va, 0, mem->size);
146 return 0;
147 }
148
149 static void be_intr_set(struct be_adapter *adapter, bool enable)
150 {
151 u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
152 u32 reg = ioread32(addr);
153 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
154
155 if (adapter->eeh_err)
156 return;
157
158 if (!enabled && enable)
159 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
160 else if (enabled && !enable)
161 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
162 else
163 return;
164
165 iowrite32(reg, addr);
166 }
167
168 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
169 {
170 u32 val = 0;
171 val |= qid & DB_RQ_RING_ID_MASK;
172 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
173
174 wmb();
175 iowrite32(val, adapter->db + DB_RQ_OFFSET);
176 }
177
178 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
179 {
180 u32 val = 0;
181 val |= qid & DB_TXULP_RING_ID_MASK;
182 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
183
184 wmb();
185 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
186 }
187
188 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
189 bool arm, bool clear_int, u16 num_popped)
190 {
191 u32 val = 0;
192 val |= qid & DB_EQ_RING_ID_MASK;
193 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
194 DB_EQ_RING_ID_EXT_MASK_SHIFT);
195
196 if (adapter->eeh_err)
197 return;
198
199 if (arm)
200 val |= 1 << DB_EQ_REARM_SHIFT;
201 if (clear_int)
202 val |= 1 << DB_EQ_CLR_SHIFT;
203 val |= 1 << DB_EQ_EVNT_SHIFT;
204 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
205 iowrite32(val, adapter->db + DB_EQ_OFFSET);
206 }
207
208 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
209 {
210 u32 val = 0;
211 val |= qid & DB_CQ_RING_ID_MASK;
212 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
213 DB_CQ_RING_ID_EXT_MASK_SHIFT);
214
215 if (adapter->eeh_err)
216 return;
217
218 if (arm)
219 val |= 1 << DB_CQ_REARM_SHIFT;
220 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
221 iowrite32(val, adapter->db + DB_CQ_OFFSET);
222 }
223
224 static int be_mac_addr_set(struct net_device *netdev, void *p)
225 {
226 struct be_adapter *adapter = netdev_priv(netdev);
227 struct sockaddr *addr = p;
228 int status = 0;
229
230 if (!is_valid_ether_addr(addr->sa_data))
231 return -EADDRNOTAVAIL;
232
233 /* MAC addr configuration will be done in hardware for VFs
234 * by their corresponding PFs. Just copy to netdev addr here
235 */
236 if (!be_physfn(adapter))
237 goto netdev_addr;
238
239 status = be_cmd_pmac_del(adapter, adapter->if_handle,
240 adapter->pmac_id, 0);
241 if (status)
242 return status;
243
244 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
245 adapter->if_handle, &adapter->pmac_id, 0);
246 netdev_addr:
247 if (!status)
248 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
249
250 return status;
251 }
252
253 void netdev_stats_update(struct be_adapter *adapter)
254 {
255 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats_cmd.va);
256 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
257 struct be_port_rxf_stats *port_stats =
258 &rxf_stats->port[adapter->port_num];
259 struct net_device_stats *dev_stats = &adapter->netdev->stats;
260 struct be_erx_stats *erx_stats = &hw_stats->erx;
261 struct be_rx_obj *rxo;
262 int i;
263
264 memset(dev_stats, 0, sizeof(*dev_stats));
265 for_all_rx_queues(adapter, rxo, i) {
266 dev_stats->rx_packets += rx_stats(rxo)->rx_pkts;
267 dev_stats->rx_bytes += rx_stats(rxo)->rx_bytes;
268 dev_stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
269 /* no space in linux buffers: best possible approximation */
270 dev_stats->rx_dropped +=
271 erx_stats->rx_drops_no_fragments[rxo->q.id];
272 }
273
274 dev_stats->tx_packets = tx_stats(adapter)->be_tx_pkts;
275 dev_stats->tx_bytes = tx_stats(adapter)->be_tx_bytes;
276
277 /* bad pkts received */
278 dev_stats->rx_errors = port_stats->rx_crc_errors +
279 port_stats->rx_alignment_symbol_errors +
280 port_stats->rx_in_range_errors +
281 port_stats->rx_out_range_errors +
282 port_stats->rx_frame_too_long +
283 port_stats->rx_dropped_too_small +
284 port_stats->rx_dropped_too_short +
285 port_stats->rx_dropped_header_too_small +
286 port_stats->rx_dropped_tcp_length +
287 port_stats->rx_dropped_runt +
288 port_stats->rx_tcp_checksum_errs +
289 port_stats->rx_ip_checksum_errs +
290 port_stats->rx_udp_checksum_errs;
291
292 /* detailed rx errors */
293 dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
294 port_stats->rx_out_range_errors +
295 port_stats->rx_frame_too_long;
296
297 dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
298
299 /* frame alignment errors */
300 dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
301
302 /* receiver fifo overrun */
303 /* drops_no_pbuf is no per i/f, it's per BE card */
304 dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
305 port_stats->rx_input_fifo_overflow +
306 rxf_stats->rx_drops_no_pbuf;
307 }
308
309 void be_link_status_update(struct be_adapter *adapter, bool link_up)
310 {
311 struct net_device *netdev = adapter->netdev;
312
313 /* If link came up or went down */
314 if (adapter->link_up != link_up) {
315 adapter->link_speed = -1;
316 if (link_up) {
317 netif_carrier_on(netdev);
318 printk(KERN_INFO "%s: Link up\n", netdev->name);
319 } else {
320 netif_carrier_off(netdev);
321 printk(KERN_INFO "%s: Link down\n", netdev->name);
322 }
323 adapter->link_up = link_up;
324 }
325 }
326
327 /* Update the EQ delay n BE based on the RX frags consumed / sec */
328 static void be_rx_eqd_update(struct be_adapter *adapter, struct be_rx_obj *rxo)
329 {
330 struct be_eq_obj *rx_eq = &rxo->rx_eq;
331 struct be_rx_stats *stats = &rxo->stats;
332 ulong now = jiffies;
333 u32 eqd;
334
335 if (!rx_eq->enable_aic)
336 return;
337
338 /* Wrapped around */
339 if (time_before(now, stats->rx_fps_jiffies)) {
340 stats->rx_fps_jiffies = now;
341 return;
342 }
343
344 /* Update once a second */
345 if ((now - stats->rx_fps_jiffies) < HZ)
346 return;
347
348 stats->rx_fps = (stats->rx_frags - stats->prev_rx_frags) /
349 ((now - stats->rx_fps_jiffies) / HZ);
350
351 stats->rx_fps_jiffies = now;
352 stats->prev_rx_frags = stats->rx_frags;
353 eqd = stats->rx_fps / 110000;
354 eqd = eqd << 3;
355 if (eqd > rx_eq->max_eqd)
356 eqd = rx_eq->max_eqd;
357 if (eqd < rx_eq->min_eqd)
358 eqd = rx_eq->min_eqd;
359 if (eqd < 10)
360 eqd = 0;
361 if (eqd != rx_eq->cur_eqd)
362 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
363
364 rx_eq->cur_eqd = eqd;
365 }
366
367 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
368 {
369 u64 rate = bytes;
370
371 do_div(rate, ticks / HZ);
372 rate <<= 3; /* bytes/sec -> bits/sec */
373 do_div(rate, 1000000ul); /* MB/Sec */
374
375 return rate;
376 }
377
378 static void be_tx_rate_update(struct be_adapter *adapter)
379 {
380 struct be_tx_stats *stats = tx_stats(adapter);
381 ulong now = jiffies;
382
383 /* Wrapped around? */
384 if (time_before(now, stats->be_tx_jiffies)) {
385 stats->be_tx_jiffies = now;
386 return;
387 }
388
389 /* Update tx rate once in two seconds */
390 if ((now - stats->be_tx_jiffies) > 2 * HZ) {
391 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
392 - stats->be_tx_bytes_prev,
393 now - stats->be_tx_jiffies);
394 stats->be_tx_jiffies = now;
395 stats->be_tx_bytes_prev = stats->be_tx_bytes;
396 }
397 }
398
399 static void be_tx_stats_update(struct be_adapter *adapter,
400 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
401 {
402 struct be_tx_stats *stats = tx_stats(adapter);
403 stats->be_tx_reqs++;
404 stats->be_tx_wrbs += wrb_cnt;
405 stats->be_tx_bytes += copied;
406 stats->be_tx_pkts += (gso_segs ? gso_segs : 1);
407 if (stopped)
408 stats->be_tx_stops++;
409 }
410
411 /* Determine number of WRB entries needed to xmit data in an skb */
412 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
413 bool *dummy)
414 {
415 int cnt = (skb->len > skb->data_len);
416
417 cnt += skb_shinfo(skb)->nr_frags;
418
419 /* to account for hdr wrb */
420 cnt++;
421 if (lancer_chip(adapter) || !(cnt & 1)) {
422 *dummy = false;
423 } else {
424 /* add a dummy to make it an even num */
425 cnt++;
426 *dummy = true;
427 }
428 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
429 return cnt;
430 }
431
432 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
433 {
434 wrb->frag_pa_hi = upper_32_bits(addr);
435 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
436 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
437 }
438
439 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
440 struct sk_buff *skb, u32 wrb_cnt, u32 len)
441 {
442 u8 vlan_prio = 0;
443 u16 vlan_tag = 0;
444
445 memset(hdr, 0, sizeof(*hdr));
446
447 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
448
449 if (skb_is_gso(skb)) {
450 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
451 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
452 hdr, skb_shinfo(skb)->gso_size);
453 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
454 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
455 if (lancer_chip(adapter) && adapter->sli_family ==
456 LANCER_A0_SLI_FAMILY) {
457 AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
458 if (is_tcp_pkt(skb))
459 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
460 tcpcs, hdr, 1);
461 else if (is_udp_pkt(skb))
462 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
463 udpcs, hdr, 1);
464 }
465 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
466 if (is_tcp_pkt(skb))
467 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
468 else if (is_udp_pkt(skb))
469 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
470 }
471
472 if (adapter->vlan_grp && vlan_tx_tag_present(skb)) {
473 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
474 vlan_tag = vlan_tx_tag_get(skb);
475 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
476 /* If vlan priority provided by OS is NOT in available bmap */
477 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
478 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
479 adapter->recommended_prio;
480 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
481 }
482
483 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
484 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
485 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
486 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
487 }
488
489 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
490 bool unmap_single)
491 {
492 dma_addr_t dma;
493
494 be_dws_le_to_cpu(wrb, sizeof(*wrb));
495
496 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
497 if (wrb->frag_len) {
498 if (unmap_single)
499 dma_unmap_single(dev, dma, wrb->frag_len,
500 DMA_TO_DEVICE);
501 else
502 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
503 }
504 }
505
506 static int make_tx_wrbs(struct be_adapter *adapter,
507 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
508 {
509 dma_addr_t busaddr;
510 int i, copied = 0;
511 struct device *dev = &adapter->pdev->dev;
512 struct sk_buff *first_skb = skb;
513 struct be_queue_info *txq = &adapter->tx_obj.q;
514 struct be_eth_wrb *wrb;
515 struct be_eth_hdr_wrb *hdr;
516 bool map_single = false;
517 u16 map_head;
518
519 hdr = queue_head_node(txq);
520 queue_head_inc(txq);
521 map_head = txq->head;
522
523 if (skb->len > skb->data_len) {
524 int len = skb_headlen(skb);
525 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
526 if (dma_mapping_error(dev, busaddr))
527 goto dma_err;
528 map_single = true;
529 wrb = queue_head_node(txq);
530 wrb_fill(wrb, busaddr, len);
531 be_dws_cpu_to_le(wrb, sizeof(*wrb));
532 queue_head_inc(txq);
533 copied += len;
534 }
535
536 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
537 struct skb_frag_struct *frag =
538 &skb_shinfo(skb)->frags[i];
539 busaddr = dma_map_page(dev, frag->page, frag->page_offset,
540 frag->size, DMA_TO_DEVICE);
541 if (dma_mapping_error(dev, busaddr))
542 goto dma_err;
543 wrb = queue_head_node(txq);
544 wrb_fill(wrb, busaddr, frag->size);
545 be_dws_cpu_to_le(wrb, sizeof(*wrb));
546 queue_head_inc(txq);
547 copied += frag->size;
548 }
549
550 if (dummy_wrb) {
551 wrb = queue_head_node(txq);
552 wrb_fill(wrb, 0, 0);
553 be_dws_cpu_to_le(wrb, sizeof(*wrb));
554 queue_head_inc(txq);
555 }
556
557 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
558 be_dws_cpu_to_le(hdr, sizeof(*hdr));
559
560 return copied;
561 dma_err:
562 txq->head = map_head;
563 while (copied) {
564 wrb = queue_head_node(txq);
565 unmap_tx_frag(dev, wrb, map_single);
566 map_single = false;
567 copied -= wrb->frag_len;
568 queue_head_inc(txq);
569 }
570 return 0;
571 }
572
573 static netdev_tx_t be_xmit(struct sk_buff *skb,
574 struct net_device *netdev)
575 {
576 struct be_adapter *adapter = netdev_priv(netdev);
577 struct be_tx_obj *tx_obj = &adapter->tx_obj;
578 struct be_queue_info *txq = &tx_obj->q;
579 u32 wrb_cnt = 0, copied = 0;
580 u32 start = txq->head;
581 bool dummy_wrb, stopped = false;
582
583 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
584
585 copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
586 if (copied) {
587 /* record the sent skb in the sent_skb table */
588 BUG_ON(tx_obj->sent_skb_list[start]);
589 tx_obj->sent_skb_list[start] = skb;
590
591 /* Ensure txq has space for the next skb; Else stop the queue
592 * *BEFORE* ringing the tx doorbell, so that we serialze the
593 * tx compls of the current transmit which'll wake up the queue
594 */
595 atomic_add(wrb_cnt, &txq->used);
596 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
597 txq->len) {
598 netif_stop_queue(netdev);
599 stopped = true;
600 }
601
602 be_txq_notify(adapter, txq->id, wrb_cnt);
603
604 be_tx_stats_update(adapter, wrb_cnt, copied,
605 skb_shinfo(skb)->gso_segs, stopped);
606 } else {
607 txq->head = start;
608 dev_kfree_skb_any(skb);
609 }
610 return NETDEV_TX_OK;
611 }
612
613 static int be_change_mtu(struct net_device *netdev, int new_mtu)
614 {
615 struct be_adapter *adapter = netdev_priv(netdev);
616 if (new_mtu < BE_MIN_MTU ||
617 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
618 (ETH_HLEN + ETH_FCS_LEN))) {
619 dev_info(&adapter->pdev->dev,
620 "MTU must be between %d and %d bytes\n",
621 BE_MIN_MTU,
622 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
623 return -EINVAL;
624 }
625 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
626 netdev->mtu, new_mtu);
627 netdev->mtu = new_mtu;
628 return 0;
629 }
630
631 /*
632 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
633 * If the user configures more, place BE in vlan promiscuous mode.
634 */
635 static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num)
636 {
637 u16 vtag[BE_NUM_VLANS_SUPPORTED];
638 u16 ntags = 0, i;
639 int status = 0;
640 u32 if_handle;
641
642 if (vf) {
643 if_handle = adapter->vf_cfg[vf_num].vf_if_handle;
644 vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag);
645 status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0);
646 }
647
648 if (adapter->vlans_added <= adapter->max_vlans) {
649 /* Construct VLAN Table to give to HW */
650 for (i = 0; i < VLAN_N_VID; i++) {
651 if (adapter->vlan_tag[i]) {
652 vtag[ntags] = cpu_to_le16(i);
653 ntags++;
654 }
655 }
656 status = be_cmd_vlan_config(adapter, adapter->if_handle,
657 vtag, ntags, 1, 0);
658 } else {
659 status = be_cmd_vlan_config(adapter, adapter->if_handle,
660 NULL, 0, 1, 1);
661 }
662
663 return status;
664 }
665
666 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
667 {
668 struct be_adapter *adapter = netdev_priv(netdev);
669
670 adapter->vlan_grp = grp;
671 }
672
673 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
674 {
675 struct be_adapter *adapter = netdev_priv(netdev);
676
677 adapter->vlans_added++;
678 if (!be_physfn(adapter))
679 return;
680
681 adapter->vlan_tag[vid] = 1;
682 if (adapter->vlans_added <= (adapter->max_vlans + 1))
683 be_vid_config(adapter, false, 0);
684 }
685
686 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
687 {
688 struct be_adapter *adapter = netdev_priv(netdev);
689
690 adapter->vlans_added--;
691 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
692
693 if (!be_physfn(adapter))
694 return;
695
696 adapter->vlan_tag[vid] = 0;
697 if (adapter->vlans_added <= adapter->max_vlans)
698 be_vid_config(adapter, false, 0);
699 }
700
701 static void be_set_multicast_list(struct net_device *netdev)
702 {
703 struct be_adapter *adapter = netdev_priv(netdev);
704
705 if (netdev->flags & IFF_PROMISC) {
706 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
707 adapter->promiscuous = true;
708 goto done;
709 }
710
711 /* BE was previously in promiscous mode; disable it */
712 if (adapter->promiscuous) {
713 adapter->promiscuous = false;
714 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
715 }
716
717 /* Enable multicast promisc if num configured exceeds what we support */
718 if (netdev->flags & IFF_ALLMULTI ||
719 netdev_mc_count(netdev) > BE_MAX_MC) {
720 be_cmd_multicast_set(adapter, adapter->if_handle, NULL,
721 &adapter->mc_cmd_mem);
722 goto done;
723 }
724
725 be_cmd_multicast_set(adapter, adapter->if_handle, netdev,
726 &adapter->mc_cmd_mem);
727 done:
728 return;
729 }
730
731 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
732 {
733 struct be_adapter *adapter = netdev_priv(netdev);
734 int status;
735
736 if (!adapter->sriov_enabled)
737 return -EPERM;
738
739 if (!is_valid_ether_addr(mac) || (vf >= num_vfs))
740 return -EINVAL;
741
742 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
743 status = be_cmd_pmac_del(adapter,
744 adapter->vf_cfg[vf].vf_if_handle,
745 adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
746
747 status = be_cmd_pmac_add(adapter, mac,
748 adapter->vf_cfg[vf].vf_if_handle,
749 &adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
750
751 if (status)
752 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
753 mac, vf);
754 else
755 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
756
757 return status;
758 }
759
760 static int be_get_vf_config(struct net_device *netdev, int vf,
761 struct ifla_vf_info *vi)
762 {
763 struct be_adapter *adapter = netdev_priv(netdev);
764
765 if (!adapter->sriov_enabled)
766 return -EPERM;
767
768 if (vf >= num_vfs)
769 return -EINVAL;
770
771 vi->vf = vf;
772 vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate;
773 vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag;
774 vi->qos = 0;
775 memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN);
776
777 return 0;
778 }
779
780 static int be_set_vf_vlan(struct net_device *netdev,
781 int vf, u16 vlan, u8 qos)
782 {
783 struct be_adapter *adapter = netdev_priv(netdev);
784 int status = 0;
785
786 if (!adapter->sriov_enabled)
787 return -EPERM;
788
789 if ((vf >= num_vfs) || (vlan > 4095))
790 return -EINVAL;
791
792 if (vlan) {
793 adapter->vf_cfg[vf].vf_vlan_tag = vlan;
794 adapter->vlans_added++;
795 } else {
796 adapter->vf_cfg[vf].vf_vlan_tag = 0;
797 adapter->vlans_added--;
798 }
799
800 status = be_vid_config(adapter, true, vf);
801
802 if (status)
803 dev_info(&adapter->pdev->dev,
804 "VLAN %d config on VF %d failed\n", vlan, vf);
805 return status;
806 }
807
808 static int be_set_vf_tx_rate(struct net_device *netdev,
809 int vf, int rate)
810 {
811 struct be_adapter *adapter = netdev_priv(netdev);
812 int status = 0;
813
814 if (!adapter->sriov_enabled)
815 return -EPERM;
816
817 if ((vf >= num_vfs) || (rate < 0))
818 return -EINVAL;
819
820 if (rate > 10000)
821 rate = 10000;
822
823 adapter->vf_cfg[vf].vf_tx_rate = rate;
824 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
825
826 if (status)
827 dev_info(&adapter->pdev->dev,
828 "tx rate %d on VF %d failed\n", rate, vf);
829 return status;
830 }
831
832 static void be_rx_rate_update(struct be_rx_obj *rxo)
833 {
834 struct be_rx_stats *stats = &rxo->stats;
835 ulong now = jiffies;
836
837 /* Wrapped around */
838 if (time_before(now, stats->rx_jiffies)) {
839 stats->rx_jiffies = now;
840 return;
841 }
842
843 /* Update the rate once in two seconds */
844 if ((now - stats->rx_jiffies) < 2 * HZ)
845 return;
846
847 stats->rx_rate = be_calc_rate(stats->rx_bytes - stats->rx_bytes_prev,
848 now - stats->rx_jiffies);
849 stats->rx_jiffies = now;
850 stats->rx_bytes_prev = stats->rx_bytes;
851 }
852
853 static void be_rx_stats_update(struct be_rx_obj *rxo,
854 struct be_rx_compl_info *rxcp)
855 {
856 struct be_rx_stats *stats = &rxo->stats;
857
858 stats->rx_compl++;
859 stats->rx_frags += rxcp->num_rcvd;
860 stats->rx_bytes += rxcp->pkt_size;
861 stats->rx_pkts++;
862 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
863 stats->rx_mcast_pkts++;
864 if (rxcp->err)
865 stats->rxcp_err++;
866 }
867
868 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
869 {
870 /* L4 checksum is not reliable for non TCP/UDP packets.
871 * Also ignore ipcksm for ipv6 pkts */
872 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
873 (rxcp->ip_csum || rxcp->ipv6);
874 }
875
876 static struct be_rx_page_info *
877 get_rx_page_info(struct be_adapter *adapter,
878 struct be_rx_obj *rxo,
879 u16 frag_idx)
880 {
881 struct be_rx_page_info *rx_page_info;
882 struct be_queue_info *rxq = &rxo->q;
883
884 rx_page_info = &rxo->page_info_tbl[frag_idx];
885 BUG_ON(!rx_page_info->page);
886
887 if (rx_page_info->last_page_user) {
888 dma_unmap_page(&adapter->pdev->dev,
889 dma_unmap_addr(rx_page_info, bus),
890 adapter->big_page_size, DMA_FROM_DEVICE);
891 rx_page_info->last_page_user = false;
892 }
893
894 atomic_dec(&rxq->used);
895 return rx_page_info;
896 }
897
898 /* Throwaway the data in the Rx completion */
899 static void be_rx_compl_discard(struct be_adapter *adapter,
900 struct be_rx_obj *rxo,
901 struct be_rx_compl_info *rxcp)
902 {
903 struct be_queue_info *rxq = &rxo->q;
904 struct be_rx_page_info *page_info;
905 u16 i, num_rcvd = rxcp->num_rcvd;
906
907 for (i = 0; i < num_rcvd; i++) {
908 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
909 put_page(page_info->page);
910 memset(page_info, 0, sizeof(*page_info));
911 index_inc(&rxcp->rxq_idx, rxq->len);
912 }
913 }
914
915 /*
916 * skb_fill_rx_data forms a complete skb for an ether frame
917 * indicated by rxcp.
918 */
919 static void skb_fill_rx_data(struct be_adapter *adapter, struct be_rx_obj *rxo,
920 struct sk_buff *skb, struct be_rx_compl_info *rxcp)
921 {
922 struct be_queue_info *rxq = &rxo->q;
923 struct be_rx_page_info *page_info;
924 u16 i, j;
925 u16 hdr_len, curr_frag_len, remaining;
926 u8 *start;
927
928 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
929 start = page_address(page_info->page) + page_info->page_offset;
930 prefetch(start);
931
932 /* Copy data in the first descriptor of this completion */
933 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
934
935 /* Copy the header portion into skb_data */
936 hdr_len = min(BE_HDR_LEN, curr_frag_len);
937 memcpy(skb->data, start, hdr_len);
938 skb->len = curr_frag_len;
939 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
940 /* Complete packet has now been moved to data */
941 put_page(page_info->page);
942 skb->data_len = 0;
943 skb->tail += curr_frag_len;
944 } else {
945 skb_shinfo(skb)->nr_frags = 1;
946 skb_shinfo(skb)->frags[0].page = page_info->page;
947 skb_shinfo(skb)->frags[0].page_offset =
948 page_info->page_offset + hdr_len;
949 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
950 skb->data_len = curr_frag_len - hdr_len;
951 skb->tail += hdr_len;
952 }
953 page_info->page = NULL;
954
955 if (rxcp->pkt_size <= rx_frag_size) {
956 BUG_ON(rxcp->num_rcvd != 1);
957 return;
958 }
959
960 /* More frags present for this completion */
961 index_inc(&rxcp->rxq_idx, rxq->len);
962 remaining = rxcp->pkt_size - curr_frag_len;
963 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
964 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
965 curr_frag_len = min(remaining, rx_frag_size);
966
967 /* Coalesce all frags from the same physical page in one slot */
968 if (page_info->page_offset == 0) {
969 /* Fresh page */
970 j++;
971 skb_shinfo(skb)->frags[j].page = page_info->page;
972 skb_shinfo(skb)->frags[j].page_offset =
973 page_info->page_offset;
974 skb_shinfo(skb)->frags[j].size = 0;
975 skb_shinfo(skb)->nr_frags++;
976 } else {
977 put_page(page_info->page);
978 }
979
980 skb_shinfo(skb)->frags[j].size += curr_frag_len;
981 skb->len += curr_frag_len;
982 skb->data_len += curr_frag_len;
983
984 remaining -= curr_frag_len;
985 index_inc(&rxcp->rxq_idx, rxq->len);
986 page_info->page = NULL;
987 }
988 BUG_ON(j > MAX_SKB_FRAGS);
989 }
990
991 /* Process the RX completion indicated by rxcp when GRO is disabled */
992 static void be_rx_compl_process(struct be_adapter *adapter,
993 struct be_rx_obj *rxo,
994 struct be_rx_compl_info *rxcp)
995 {
996 struct sk_buff *skb;
997
998 skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
999 if (unlikely(!skb)) {
1000 if (net_ratelimit())
1001 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
1002 be_rx_compl_discard(adapter, rxo, rxcp);
1003 return;
1004 }
1005
1006 skb_fill_rx_data(adapter, rxo, skb, rxcp);
1007
1008 if (likely(adapter->rx_csum && csum_passed(rxcp)))
1009 skb->ip_summed = CHECKSUM_UNNECESSARY;
1010 else
1011 skb_checksum_none_assert(skb);
1012
1013 skb->truesize = skb->len + sizeof(struct sk_buff);
1014 skb->protocol = eth_type_trans(skb, adapter->netdev);
1015
1016 if (unlikely(rxcp->vlanf)) {
1017 if (!adapter->vlan_grp || adapter->vlans_added == 0) {
1018 kfree_skb(skb);
1019 return;
1020 }
1021 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, rxcp->vid);
1022 } else {
1023 netif_receive_skb(skb);
1024 }
1025 }
1026
1027 /* Process the RX completion indicated by rxcp when GRO is enabled */
1028 static void be_rx_compl_process_gro(struct be_adapter *adapter,
1029 struct be_rx_obj *rxo,
1030 struct be_rx_compl_info *rxcp)
1031 {
1032 struct be_rx_page_info *page_info;
1033 struct sk_buff *skb = NULL;
1034 struct be_queue_info *rxq = &rxo->q;
1035 struct be_eq_obj *eq_obj = &rxo->rx_eq;
1036 u16 remaining, curr_frag_len;
1037 u16 i, j;
1038
1039 skb = napi_get_frags(&eq_obj->napi);
1040 if (!skb) {
1041 be_rx_compl_discard(adapter, rxo, rxcp);
1042 return;
1043 }
1044
1045 remaining = rxcp->pkt_size;
1046 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1047 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1048
1049 curr_frag_len = min(remaining, rx_frag_size);
1050
1051 /* Coalesce all frags from the same physical page in one slot */
1052 if (i == 0 || page_info->page_offset == 0) {
1053 /* First frag or Fresh page */
1054 j++;
1055 skb_shinfo(skb)->frags[j].page = page_info->page;
1056 skb_shinfo(skb)->frags[j].page_offset =
1057 page_info->page_offset;
1058 skb_shinfo(skb)->frags[j].size = 0;
1059 } else {
1060 put_page(page_info->page);
1061 }
1062 skb_shinfo(skb)->frags[j].size += curr_frag_len;
1063
1064 remaining -= curr_frag_len;
1065 index_inc(&rxcp->rxq_idx, rxq->len);
1066 memset(page_info, 0, sizeof(*page_info));
1067 }
1068 BUG_ON(j > MAX_SKB_FRAGS);
1069
1070 skb_shinfo(skb)->nr_frags = j + 1;
1071 skb->len = rxcp->pkt_size;
1072 skb->data_len = rxcp->pkt_size;
1073 skb->truesize += rxcp->pkt_size;
1074 skb->ip_summed = CHECKSUM_UNNECESSARY;
1075
1076 if (likely(!rxcp->vlanf))
1077 napi_gro_frags(&eq_obj->napi);
1078 else
1079 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, rxcp->vid);
1080 }
1081
1082 static void be_parse_rx_compl_v1(struct be_adapter *adapter,
1083 struct be_eth_rx_compl *compl,
1084 struct be_rx_compl_info *rxcp)
1085 {
1086 rxcp->pkt_size =
1087 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1088 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1089 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1090 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1091 rxcp->ip_csum =
1092 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1093 rxcp->l4_csum =
1094 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1095 rxcp->ipv6 =
1096 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1097 rxcp->rxq_idx =
1098 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1099 rxcp->num_rcvd =
1100 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1101 rxcp->pkt_type =
1102 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1103 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm, compl);
1104 rxcp->vid = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag, compl);
1105 }
1106
1107 static void be_parse_rx_compl_v0(struct be_adapter *adapter,
1108 struct be_eth_rx_compl *compl,
1109 struct be_rx_compl_info *rxcp)
1110 {
1111 rxcp->pkt_size =
1112 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1113 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1114 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1115 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1116 rxcp->ip_csum =
1117 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1118 rxcp->l4_csum =
1119 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1120 rxcp->ipv6 =
1121 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1122 rxcp->rxq_idx =
1123 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1124 rxcp->num_rcvd =
1125 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1126 rxcp->pkt_type =
1127 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1128 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm, compl);
1129 rxcp->vid = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag, compl);
1130 }
1131
1132 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1133 {
1134 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1135 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1136 struct be_adapter *adapter = rxo->adapter;
1137
1138 /* For checking the valid bit it is Ok to use either definition as the
1139 * valid bit is at the same position in both v0 and v1 Rx compl */
1140 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1141 return NULL;
1142
1143 rmb();
1144 be_dws_le_to_cpu(compl, sizeof(*compl));
1145
1146 if (adapter->be3_native)
1147 be_parse_rx_compl_v1(adapter, compl, rxcp);
1148 else
1149 be_parse_rx_compl_v0(adapter, compl, rxcp);
1150
1151 /* vlanf could be wrongly set in some cards. ignore if vtm is not set */
1152 if ((adapter->function_mode & 0x400) && !rxcp->vtm)
1153 rxcp->vlanf = 0;
1154
1155 if (!lancer_chip(adapter))
1156 rxcp->vid = swab16(rxcp->vid);
1157
1158 if ((adapter->pvid == rxcp->vid) && !adapter->vlan_tag[rxcp->vid])
1159 rxcp->vlanf = 0;
1160
1161 /* As the compl has been parsed, reset it; we wont touch it again */
1162 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1163
1164 queue_tail_inc(&rxo->cq);
1165 return rxcp;
1166 }
1167
1168 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1169 {
1170 u32 order = get_order(size);
1171
1172 if (order > 0)
1173 gfp |= __GFP_COMP;
1174 return alloc_pages(gfp, order);
1175 }
1176
1177 /*
1178 * Allocate a page, split it to fragments of size rx_frag_size and post as
1179 * receive buffers to BE
1180 */
1181 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1182 {
1183 struct be_adapter *adapter = rxo->adapter;
1184 struct be_rx_page_info *page_info_tbl = rxo->page_info_tbl;
1185 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1186 struct be_queue_info *rxq = &rxo->q;
1187 struct page *pagep = NULL;
1188 struct be_eth_rx_d *rxd;
1189 u64 page_dmaaddr = 0, frag_dmaaddr;
1190 u32 posted, page_offset = 0;
1191
1192 page_info = &rxo->page_info_tbl[rxq->head];
1193 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1194 if (!pagep) {
1195 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1196 if (unlikely(!pagep)) {
1197 rxo->stats.rx_post_fail++;
1198 break;
1199 }
1200 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1201 0, adapter->big_page_size,
1202 DMA_FROM_DEVICE);
1203 page_info->page_offset = 0;
1204 } else {
1205 get_page(pagep);
1206 page_info->page_offset = page_offset + rx_frag_size;
1207 }
1208 page_offset = page_info->page_offset;
1209 page_info->page = pagep;
1210 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1211 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1212
1213 rxd = queue_head_node(rxq);
1214 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1215 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1216
1217 /* Any space left in the current big page for another frag? */
1218 if ((page_offset + rx_frag_size + rx_frag_size) >
1219 adapter->big_page_size) {
1220 pagep = NULL;
1221 page_info->last_page_user = true;
1222 }
1223
1224 prev_page_info = page_info;
1225 queue_head_inc(rxq);
1226 page_info = &page_info_tbl[rxq->head];
1227 }
1228 if (pagep)
1229 prev_page_info->last_page_user = true;
1230
1231 if (posted) {
1232 atomic_add(posted, &rxq->used);
1233 be_rxq_notify(adapter, rxq->id, posted);
1234 } else if (atomic_read(&rxq->used) == 0) {
1235 /* Let be_worker replenish when memory is available */
1236 rxo->rx_post_starved = true;
1237 }
1238 }
1239
1240 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1241 {
1242 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1243
1244 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1245 return NULL;
1246
1247 rmb();
1248 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1249
1250 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1251
1252 queue_tail_inc(tx_cq);
1253 return txcp;
1254 }
1255
1256 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
1257 {
1258 struct be_queue_info *txq = &adapter->tx_obj.q;
1259 struct be_eth_wrb *wrb;
1260 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
1261 struct sk_buff *sent_skb;
1262 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1263 bool unmap_skb_hdr = true;
1264
1265 sent_skb = sent_skbs[txq->tail];
1266 BUG_ON(!sent_skb);
1267 sent_skbs[txq->tail] = NULL;
1268
1269 /* skip header wrb */
1270 queue_tail_inc(txq);
1271
1272 do {
1273 cur_index = txq->tail;
1274 wrb = queue_tail_node(txq);
1275 unmap_tx_frag(&adapter->pdev->dev, wrb,
1276 (unmap_skb_hdr && skb_headlen(sent_skb)));
1277 unmap_skb_hdr = false;
1278
1279 num_wrbs++;
1280 queue_tail_inc(txq);
1281 } while (cur_index != last_index);
1282
1283 atomic_sub(num_wrbs, &txq->used);
1284
1285 kfree_skb(sent_skb);
1286 }
1287
1288 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1289 {
1290 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1291
1292 if (!eqe->evt)
1293 return NULL;
1294
1295 rmb();
1296 eqe->evt = le32_to_cpu(eqe->evt);
1297 queue_tail_inc(&eq_obj->q);
1298 return eqe;
1299 }
1300
1301 static int event_handle(struct be_adapter *adapter,
1302 struct be_eq_obj *eq_obj)
1303 {
1304 struct be_eq_entry *eqe;
1305 u16 num = 0;
1306
1307 while ((eqe = event_get(eq_obj)) != NULL) {
1308 eqe->evt = 0;
1309 num++;
1310 }
1311
1312 /* Deal with any spurious interrupts that come
1313 * without events
1314 */
1315 be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1316 if (num)
1317 napi_schedule(&eq_obj->napi);
1318
1319 return num;
1320 }
1321
1322 /* Just read and notify events without processing them.
1323 * Used at the time of destroying event queues */
1324 static void be_eq_clean(struct be_adapter *adapter,
1325 struct be_eq_obj *eq_obj)
1326 {
1327 struct be_eq_entry *eqe;
1328 u16 num = 0;
1329
1330 while ((eqe = event_get(eq_obj)) != NULL) {
1331 eqe->evt = 0;
1332 num++;
1333 }
1334
1335 if (num)
1336 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1337 }
1338
1339 static void be_rx_q_clean(struct be_adapter *adapter, struct be_rx_obj *rxo)
1340 {
1341 struct be_rx_page_info *page_info;
1342 struct be_queue_info *rxq = &rxo->q;
1343 struct be_queue_info *rx_cq = &rxo->cq;
1344 struct be_rx_compl_info *rxcp;
1345 u16 tail;
1346
1347 /* First cleanup pending rx completions */
1348 while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1349 be_rx_compl_discard(adapter, rxo, rxcp);
1350 be_cq_notify(adapter, rx_cq->id, false, 1);
1351 }
1352
1353 /* Then free posted rx buffer that were not used */
1354 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1355 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1356 page_info = get_rx_page_info(adapter, rxo, tail);
1357 put_page(page_info->page);
1358 memset(page_info, 0, sizeof(*page_info));
1359 }
1360 BUG_ON(atomic_read(&rxq->used));
1361 }
1362
1363 static void be_tx_compl_clean(struct be_adapter *adapter)
1364 {
1365 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1366 struct be_queue_info *txq = &adapter->tx_obj.q;
1367 struct be_eth_tx_compl *txcp;
1368 u16 end_idx, cmpl = 0, timeo = 0;
1369 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
1370 struct sk_buff *sent_skb;
1371 bool dummy_wrb;
1372
1373 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1374 do {
1375 while ((txcp = be_tx_compl_get(tx_cq))) {
1376 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1377 wrb_index, txcp);
1378 be_tx_compl_process(adapter, end_idx);
1379 cmpl++;
1380 }
1381 if (cmpl) {
1382 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1383 cmpl = 0;
1384 }
1385
1386 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1387 break;
1388
1389 mdelay(1);
1390 } while (true);
1391
1392 if (atomic_read(&txq->used))
1393 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1394 atomic_read(&txq->used));
1395
1396 /* free posted tx for which compls will never arrive */
1397 while (atomic_read(&txq->used)) {
1398 sent_skb = sent_skbs[txq->tail];
1399 end_idx = txq->tail;
1400 index_adv(&end_idx,
1401 wrb_cnt_for_skb(adapter, sent_skb, &dummy_wrb) - 1,
1402 txq->len);
1403 be_tx_compl_process(adapter, end_idx);
1404 }
1405 }
1406
1407 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1408 {
1409 struct be_queue_info *q;
1410
1411 q = &adapter->mcc_obj.q;
1412 if (q->created)
1413 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1414 be_queue_free(adapter, q);
1415
1416 q = &adapter->mcc_obj.cq;
1417 if (q->created)
1418 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1419 be_queue_free(adapter, q);
1420 }
1421
1422 /* Must be called only after TX qs are created as MCC shares TX EQ */
1423 static int be_mcc_queues_create(struct be_adapter *adapter)
1424 {
1425 struct be_queue_info *q, *cq;
1426
1427 /* Alloc MCC compl queue */
1428 cq = &adapter->mcc_obj.cq;
1429 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1430 sizeof(struct be_mcc_compl)))
1431 goto err;
1432
1433 /* Ask BE to create MCC compl queue; share TX's eq */
1434 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1435 goto mcc_cq_free;
1436
1437 /* Alloc MCC queue */
1438 q = &adapter->mcc_obj.q;
1439 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1440 goto mcc_cq_destroy;
1441
1442 /* Ask BE to create MCC queue */
1443 if (be_cmd_mccq_create(adapter, q, cq))
1444 goto mcc_q_free;
1445
1446 return 0;
1447
1448 mcc_q_free:
1449 be_queue_free(adapter, q);
1450 mcc_cq_destroy:
1451 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1452 mcc_cq_free:
1453 be_queue_free(adapter, cq);
1454 err:
1455 return -1;
1456 }
1457
1458 static void be_tx_queues_destroy(struct be_adapter *adapter)
1459 {
1460 struct be_queue_info *q;
1461
1462 q = &adapter->tx_obj.q;
1463 if (q->created)
1464 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1465 be_queue_free(adapter, q);
1466
1467 q = &adapter->tx_obj.cq;
1468 if (q->created)
1469 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1470 be_queue_free(adapter, q);
1471
1472 /* Clear any residual events */
1473 be_eq_clean(adapter, &adapter->tx_eq);
1474
1475 q = &adapter->tx_eq.q;
1476 if (q->created)
1477 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1478 be_queue_free(adapter, q);
1479 }
1480
1481 static int be_tx_queues_create(struct be_adapter *adapter)
1482 {
1483 struct be_queue_info *eq, *q, *cq;
1484
1485 adapter->tx_eq.max_eqd = 0;
1486 adapter->tx_eq.min_eqd = 0;
1487 adapter->tx_eq.cur_eqd = 96;
1488 adapter->tx_eq.enable_aic = false;
1489 /* Alloc Tx Event queue */
1490 eq = &adapter->tx_eq.q;
1491 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1492 return -1;
1493
1494 /* Ask BE to create Tx Event queue */
1495 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1496 goto tx_eq_free;
1497
1498 adapter->tx_eq.msix_vec_idx = adapter->msix_vec_next_idx++;
1499
1500
1501 /* Alloc TX eth compl queue */
1502 cq = &adapter->tx_obj.cq;
1503 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1504 sizeof(struct be_eth_tx_compl)))
1505 goto tx_eq_destroy;
1506
1507 /* Ask BE to create Tx eth compl queue */
1508 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1509 goto tx_cq_free;
1510
1511 /* Alloc TX eth queue */
1512 q = &adapter->tx_obj.q;
1513 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1514 goto tx_cq_destroy;
1515
1516 /* Ask BE to create Tx eth queue */
1517 if (be_cmd_txq_create(adapter, q, cq))
1518 goto tx_q_free;
1519 return 0;
1520
1521 tx_q_free:
1522 be_queue_free(adapter, q);
1523 tx_cq_destroy:
1524 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1525 tx_cq_free:
1526 be_queue_free(adapter, cq);
1527 tx_eq_destroy:
1528 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1529 tx_eq_free:
1530 be_queue_free(adapter, eq);
1531 return -1;
1532 }
1533
1534 static void be_rx_queues_destroy(struct be_adapter *adapter)
1535 {
1536 struct be_queue_info *q;
1537 struct be_rx_obj *rxo;
1538 int i;
1539
1540 for_all_rx_queues(adapter, rxo, i) {
1541 q = &rxo->q;
1542 if (q->created) {
1543 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1544 /* After the rxq is invalidated, wait for a grace time
1545 * of 1ms for all dma to end and the flush compl to
1546 * arrive
1547 */
1548 mdelay(1);
1549 be_rx_q_clean(adapter, rxo);
1550 }
1551 be_queue_free(adapter, q);
1552
1553 q = &rxo->cq;
1554 if (q->created)
1555 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1556 be_queue_free(adapter, q);
1557
1558 /* Clear any residual events */
1559 q = &rxo->rx_eq.q;
1560 if (q->created) {
1561 be_eq_clean(adapter, &rxo->rx_eq);
1562 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1563 }
1564 be_queue_free(adapter, q);
1565 }
1566 }
1567
1568 static int be_rx_queues_create(struct be_adapter *adapter)
1569 {
1570 struct be_queue_info *eq, *q, *cq;
1571 struct be_rx_obj *rxo;
1572 int rc, i;
1573
1574 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1575 for_all_rx_queues(adapter, rxo, i) {
1576 rxo->adapter = adapter;
1577 rxo->rx_eq.max_eqd = BE_MAX_EQD;
1578 rxo->rx_eq.enable_aic = true;
1579
1580 /* EQ */
1581 eq = &rxo->rx_eq.q;
1582 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1583 sizeof(struct be_eq_entry));
1584 if (rc)
1585 goto err;
1586
1587 rc = be_cmd_eq_create(adapter, eq, rxo->rx_eq.cur_eqd);
1588 if (rc)
1589 goto err;
1590
1591 rxo->rx_eq.msix_vec_idx = adapter->msix_vec_next_idx++;
1592
1593 /* CQ */
1594 cq = &rxo->cq;
1595 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1596 sizeof(struct be_eth_rx_compl));
1597 if (rc)
1598 goto err;
1599
1600 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1601 if (rc)
1602 goto err;
1603 /* Rx Q */
1604 q = &rxo->q;
1605 rc = be_queue_alloc(adapter, q, RX_Q_LEN,
1606 sizeof(struct be_eth_rx_d));
1607 if (rc)
1608 goto err;
1609
1610 rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1611 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle,
1612 (i > 0) ? 1 : 0/* rss enable */, &rxo->rss_id);
1613 if (rc)
1614 goto err;
1615 }
1616
1617 if (be_multi_rxq(adapter)) {
1618 u8 rsstable[MAX_RSS_QS];
1619
1620 for_all_rss_queues(adapter, rxo, i)
1621 rsstable[i] = rxo->rss_id;
1622
1623 rc = be_cmd_rss_config(adapter, rsstable,
1624 adapter->num_rx_qs - 1);
1625 if (rc)
1626 goto err;
1627 }
1628
1629 return 0;
1630 err:
1631 be_rx_queues_destroy(adapter);
1632 return -1;
1633 }
1634
1635 static bool event_peek(struct be_eq_obj *eq_obj)
1636 {
1637 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1638 if (!eqe->evt)
1639 return false;
1640 else
1641 return true;
1642 }
1643
1644 static irqreturn_t be_intx(int irq, void *dev)
1645 {
1646 struct be_adapter *adapter = dev;
1647 struct be_rx_obj *rxo;
1648 int isr, i, tx = 0 , rx = 0;
1649
1650 if (lancer_chip(adapter)) {
1651 if (event_peek(&adapter->tx_eq))
1652 tx = event_handle(adapter, &adapter->tx_eq);
1653 for_all_rx_queues(adapter, rxo, i) {
1654 if (event_peek(&rxo->rx_eq))
1655 rx |= event_handle(adapter, &rxo->rx_eq);
1656 }
1657
1658 if (!(tx || rx))
1659 return IRQ_NONE;
1660
1661 } else {
1662 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1663 (adapter->tx_eq.q.id / 8) * CEV_ISR_SIZE);
1664 if (!isr)
1665 return IRQ_NONE;
1666
1667 if ((1 << adapter->tx_eq.msix_vec_idx & isr))
1668 event_handle(adapter, &adapter->tx_eq);
1669
1670 for_all_rx_queues(adapter, rxo, i) {
1671 if ((1 << rxo->rx_eq.msix_vec_idx & isr))
1672 event_handle(adapter, &rxo->rx_eq);
1673 }
1674 }
1675
1676 return IRQ_HANDLED;
1677 }
1678
1679 static irqreturn_t be_msix_rx(int irq, void *dev)
1680 {
1681 struct be_rx_obj *rxo = dev;
1682 struct be_adapter *adapter = rxo->adapter;
1683
1684 event_handle(adapter, &rxo->rx_eq);
1685
1686 return IRQ_HANDLED;
1687 }
1688
1689 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1690 {
1691 struct be_adapter *adapter = dev;
1692
1693 event_handle(adapter, &adapter->tx_eq);
1694
1695 return IRQ_HANDLED;
1696 }
1697
1698 static inline bool do_gro(struct be_rx_compl_info *rxcp)
1699 {
1700 return (rxcp->tcpf && !rxcp->err) ? true : false;
1701 }
1702
1703 static int be_poll_rx(struct napi_struct *napi, int budget)
1704 {
1705 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1706 struct be_rx_obj *rxo = container_of(rx_eq, struct be_rx_obj, rx_eq);
1707 struct be_adapter *adapter = rxo->adapter;
1708 struct be_queue_info *rx_cq = &rxo->cq;
1709 struct be_rx_compl_info *rxcp;
1710 u32 work_done;
1711
1712 rxo->stats.rx_polls++;
1713 for (work_done = 0; work_done < budget; work_done++) {
1714 rxcp = be_rx_compl_get(rxo);
1715 if (!rxcp)
1716 break;
1717
1718 /* Ignore flush completions */
1719 if (rxcp->num_rcvd) {
1720 if (do_gro(rxcp))
1721 be_rx_compl_process_gro(adapter, rxo, rxcp);
1722 else
1723 be_rx_compl_process(adapter, rxo, rxcp);
1724 }
1725 be_rx_stats_update(rxo, rxcp);
1726 }
1727
1728 /* Refill the queue */
1729 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
1730 be_post_rx_frags(rxo, GFP_ATOMIC);
1731
1732 /* All consumed */
1733 if (work_done < budget) {
1734 napi_complete(napi);
1735 be_cq_notify(adapter, rx_cq->id, true, work_done);
1736 } else {
1737 /* More to be consumed; continue with interrupts disabled */
1738 be_cq_notify(adapter, rx_cq->id, false, work_done);
1739 }
1740 return work_done;
1741 }
1742
1743 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1744 * For TX/MCC we don't honour budget; consume everything
1745 */
1746 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1747 {
1748 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1749 struct be_adapter *adapter =
1750 container_of(tx_eq, struct be_adapter, tx_eq);
1751 struct be_queue_info *txq = &adapter->tx_obj.q;
1752 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1753 struct be_eth_tx_compl *txcp;
1754 int tx_compl = 0, mcc_compl, status = 0;
1755 u16 end_idx;
1756
1757 while ((txcp = be_tx_compl_get(tx_cq))) {
1758 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1759 wrb_index, txcp);
1760 be_tx_compl_process(adapter, end_idx);
1761 tx_compl++;
1762 }
1763
1764 mcc_compl = be_process_mcc(adapter, &status);
1765
1766 napi_complete(napi);
1767
1768 if (mcc_compl) {
1769 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1770 be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl);
1771 }
1772
1773 if (tx_compl) {
1774 be_cq_notify(adapter, adapter->tx_obj.cq.id, true, tx_compl);
1775
1776 /* As Tx wrbs have been freed up, wake up netdev queue if
1777 * it was stopped due to lack of tx wrbs.
1778 */
1779 if (netif_queue_stopped(adapter->netdev) &&
1780 atomic_read(&txq->used) < txq->len / 2) {
1781 netif_wake_queue(adapter->netdev);
1782 }
1783
1784 tx_stats(adapter)->be_tx_events++;
1785 tx_stats(adapter)->be_tx_compl += tx_compl;
1786 }
1787
1788 return 1;
1789 }
1790
1791 void be_detect_dump_ue(struct be_adapter *adapter)
1792 {
1793 u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask;
1794 u32 i;
1795
1796 pci_read_config_dword(adapter->pdev,
1797 PCICFG_UE_STATUS_LOW, &ue_status_lo);
1798 pci_read_config_dword(adapter->pdev,
1799 PCICFG_UE_STATUS_HIGH, &ue_status_hi);
1800 pci_read_config_dword(adapter->pdev,
1801 PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask);
1802 pci_read_config_dword(adapter->pdev,
1803 PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask);
1804
1805 ue_status_lo = (ue_status_lo & (~ue_status_lo_mask));
1806 ue_status_hi = (ue_status_hi & (~ue_status_hi_mask));
1807
1808 if (ue_status_lo || ue_status_hi) {
1809 adapter->ue_detected = true;
1810 adapter->eeh_err = true;
1811 dev_err(&adapter->pdev->dev, "UE Detected!!\n");
1812 }
1813
1814 if (ue_status_lo) {
1815 for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) {
1816 if (ue_status_lo & 1)
1817 dev_err(&adapter->pdev->dev,
1818 "UE: %s bit set\n", ue_status_low_desc[i]);
1819 }
1820 }
1821 if (ue_status_hi) {
1822 for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) {
1823 if (ue_status_hi & 1)
1824 dev_err(&adapter->pdev->dev,
1825 "UE: %s bit set\n", ue_status_hi_desc[i]);
1826 }
1827 }
1828
1829 }
1830
1831 static void be_worker(struct work_struct *work)
1832 {
1833 struct be_adapter *adapter =
1834 container_of(work, struct be_adapter, work.work);
1835 struct be_rx_obj *rxo;
1836 int i;
1837
1838 /* when interrupts are not yet enabled, just reap any pending
1839 * mcc completions */
1840 if (!netif_running(adapter->netdev)) {
1841 int mcc_compl, status = 0;
1842
1843 mcc_compl = be_process_mcc(adapter, &status);
1844
1845 if (mcc_compl) {
1846 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1847 be_cq_notify(adapter, mcc_obj->cq.id, false, mcc_compl);
1848 }
1849
1850 if (!adapter->ue_detected && !lancer_chip(adapter))
1851 be_detect_dump_ue(adapter);
1852
1853 goto reschedule;
1854 }
1855
1856 if (!adapter->stats_cmd_sent)
1857 be_cmd_get_stats(adapter, &adapter->stats_cmd);
1858
1859 be_tx_rate_update(adapter);
1860
1861 for_all_rx_queues(adapter, rxo, i) {
1862 be_rx_rate_update(rxo);
1863 be_rx_eqd_update(adapter, rxo);
1864
1865 if (rxo->rx_post_starved) {
1866 rxo->rx_post_starved = false;
1867 be_post_rx_frags(rxo, GFP_KERNEL);
1868 }
1869 }
1870 if (!adapter->ue_detected && !lancer_chip(adapter))
1871 be_detect_dump_ue(adapter);
1872
1873 reschedule:
1874 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1875 }
1876
1877 static void be_msix_disable(struct be_adapter *adapter)
1878 {
1879 if (adapter->msix_enabled) {
1880 pci_disable_msix(adapter->pdev);
1881 adapter->msix_enabled = false;
1882 }
1883 }
1884
1885 static int be_num_rxqs_get(struct be_adapter *adapter)
1886 {
1887 if (multi_rxq && (adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
1888 !adapter->sriov_enabled && !(adapter->function_mode & 0x400)) {
1889 return 1 + MAX_RSS_QS; /* one default non-RSS queue */
1890 } else {
1891 dev_warn(&adapter->pdev->dev,
1892 "No support for multiple RX queues\n");
1893 return 1;
1894 }
1895 }
1896
1897 static void be_msix_enable(struct be_adapter *adapter)
1898 {
1899 #define BE_MIN_MSIX_VECTORS (1 + 1) /* Rx + Tx */
1900 int i, status;
1901
1902 adapter->num_rx_qs = be_num_rxqs_get(adapter);
1903
1904 for (i = 0; i < (adapter->num_rx_qs + 1); i++)
1905 adapter->msix_entries[i].entry = i;
1906
1907 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1908 adapter->num_rx_qs + 1);
1909 if (status == 0) {
1910 goto done;
1911 } else if (status >= BE_MIN_MSIX_VECTORS) {
1912 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
1913 status) == 0) {
1914 adapter->num_rx_qs = status - 1;
1915 dev_warn(&adapter->pdev->dev,
1916 "Could alloc only %d MSIx vectors. "
1917 "Using %d RX Qs\n", status, adapter->num_rx_qs);
1918 goto done;
1919 }
1920 }
1921 return;
1922 done:
1923 adapter->msix_enabled = true;
1924 }
1925
1926 static void be_sriov_enable(struct be_adapter *adapter)
1927 {
1928 be_check_sriov_fn_type(adapter);
1929 #ifdef CONFIG_PCI_IOV
1930 if (be_physfn(adapter) && num_vfs) {
1931 int status;
1932
1933 status = pci_enable_sriov(adapter->pdev, num_vfs);
1934 adapter->sriov_enabled = status ? false : true;
1935 }
1936 #endif
1937 }
1938
1939 static void be_sriov_disable(struct be_adapter *adapter)
1940 {
1941 #ifdef CONFIG_PCI_IOV
1942 if (adapter->sriov_enabled) {
1943 pci_disable_sriov(adapter->pdev);
1944 adapter->sriov_enabled = false;
1945 }
1946 #endif
1947 }
1948
1949 static inline int be_msix_vec_get(struct be_adapter *adapter,
1950 struct be_eq_obj *eq_obj)
1951 {
1952 return adapter->msix_entries[eq_obj->msix_vec_idx].vector;
1953 }
1954
1955 static int be_request_irq(struct be_adapter *adapter,
1956 struct be_eq_obj *eq_obj,
1957 void *handler, char *desc, void *context)
1958 {
1959 struct net_device *netdev = adapter->netdev;
1960 int vec;
1961
1962 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1963 vec = be_msix_vec_get(adapter, eq_obj);
1964 return request_irq(vec, handler, 0, eq_obj->desc, context);
1965 }
1966
1967 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj,
1968 void *context)
1969 {
1970 int vec = be_msix_vec_get(adapter, eq_obj);
1971 free_irq(vec, context);
1972 }
1973
1974 static int be_msix_register(struct be_adapter *adapter)
1975 {
1976 struct be_rx_obj *rxo;
1977 int status, i;
1978 char qname[10];
1979
1980 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx",
1981 adapter);
1982 if (status)
1983 goto err;
1984
1985 for_all_rx_queues(adapter, rxo, i) {
1986 sprintf(qname, "rxq%d", i);
1987 status = be_request_irq(adapter, &rxo->rx_eq, be_msix_rx,
1988 qname, rxo);
1989 if (status)
1990 goto err_msix;
1991 }
1992
1993 return 0;
1994
1995 err_msix:
1996 be_free_irq(adapter, &adapter->tx_eq, adapter);
1997
1998 for (i--, rxo = &adapter->rx_obj[i]; i >= 0; i--, rxo--)
1999 be_free_irq(adapter, &rxo->rx_eq, rxo);
2000
2001 err:
2002 dev_warn(&adapter->pdev->dev,
2003 "MSIX Request IRQ failed - err %d\n", status);
2004 pci_disable_msix(adapter->pdev);
2005 adapter->msix_enabled = false;
2006 return status;
2007 }
2008
2009 static int be_irq_register(struct be_adapter *adapter)
2010 {
2011 struct net_device *netdev = adapter->netdev;
2012 int status;
2013
2014 if (adapter->msix_enabled) {
2015 status = be_msix_register(adapter);
2016 if (status == 0)
2017 goto done;
2018 /* INTx is not supported for VF */
2019 if (!be_physfn(adapter))
2020 return status;
2021 }
2022
2023 /* INTx */
2024 netdev->irq = adapter->pdev->irq;
2025 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2026 adapter);
2027 if (status) {
2028 dev_err(&adapter->pdev->dev,
2029 "INTx request IRQ failed - err %d\n", status);
2030 return status;
2031 }
2032 done:
2033 adapter->isr_registered = true;
2034 return 0;
2035 }
2036
2037 static void be_irq_unregister(struct be_adapter *adapter)
2038 {
2039 struct net_device *netdev = adapter->netdev;
2040 struct be_rx_obj *rxo;
2041 int i;
2042
2043 if (!adapter->isr_registered)
2044 return;
2045
2046 /* INTx */
2047 if (!adapter->msix_enabled) {
2048 free_irq(netdev->irq, adapter);
2049 goto done;
2050 }
2051
2052 /* MSIx */
2053 be_free_irq(adapter, &adapter->tx_eq, adapter);
2054
2055 for_all_rx_queues(adapter, rxo, i)
2056 be_free_irq(adapter, &rxo->rx_eq, rxo);
2057
2058 done:
2059 adapter->isr_registered = false;
2060 }
2061
2062 static int be_close(struct net_device *netdev)
2063 {
2064 struct be_adapter *adapter = netdev_priv(netdev);
2065 struct be_rx_obj *rxo;
2066 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2067 int vec, i;
2068
2069 be_async_mcc_disable(adapter);
2070
2071 netif_carrier_off(netdev);
2072 adapter->link_up = false;
2073
2074 if (!lancer_chip(adapter))
2075 be_intr_set(adapter, false);
2076
2077 for_all_rx_queues(adapter, rxo, i)
2078 napi_disable(&rxo->rx_eq.napi);
2079
2080 napi_disable(&tx_eq->napi);
2081
2082 if (lancer_chip(adapter)) {
2083 be_cq_notify(adapter, adapter->tx_obj.cq.id, false, 0);
2084 be_cq_notify(adapter, adapter->mcc_obj.cq.id, false, 0);
2085 for_all_rx_queues(adapter, rxo, i)
2086 be_cq_notify(adapter, rxo->cq.id, false, 0);
2087 }
2088
2089 if (adapter->msix_enabled) {
2090 vec = be_msix_vec_get(adapter, tx_eq);
2091 synchronize_irq(vec);
2092
2093 for_all_rx_queues(adapter, rxo, i) {
2094 vec = be_msix_vec_get(adapter, &rxo->rx_eq);
2095 synchronize_irq(vec);
2096 }
2097 } else {
2098 synchronize_irq(netdev->irq);
2099 }
2100 be_irq_unregister(adapter);
2101
2102 /* Wait for all pending tx completions to arrive so that
2103 * all tx skbs are freed.
2104 */
2105 be_tx_compl_clean(adapter);
2106
2107 return 0;
2108 }
2109
2110 static int be_open(struct net_device *netdev)
2111 {
2112 struct be_adapter *adapter = netdev_priv(netdev);
2113 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2114 struct be_rx_obj *rxo;
2115 bool link_up;
2116 int status, i;
2117 u8 mac_speed;
2118 u16 link_speed;
2119
2120 for_all_rx_queues(adapter, rxo, i) {
2121 be_post_rx_frags(rxo, GFP_KERNEL);
2122 napi_enable(&rxo->rx_eq.napi);
2123 }
2124 napi_enable(&tx_eq->napi);
2125
2126 be_irq_register(adapter);
2127
2128 if (!lancer_chip(adapter))
2129 be_intr_set(adapter, true);
2130
2131 /* The evt queues are created in unarmed state; arm them */
2132 for_all_rx_queues(adapter, rxo, i) {
2133 be_eq_notify(adapter, rxo->rx_eq.q.id, true, false, 0);
2134 be_cq_notify(adapter, rxo->cq.id, true, 0);
2135 }
2136 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
2137
2138 /* Now that interrupts are on we can process async mcc */
2139 be_async_mcc_enable(adapter);
2140
2141 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
2142 &link_speed);
2143 if (status)
2144 goto err;
2145 be_link_status_update(adapter, link_up);
2146
2147 if (be_physfn(adapter)) {
2148 status = be_vid_config(adapter, false, 0);
2149 if (status)
2150 goto err;
2151
2152 status = be_cmd_set_flow_control(adapter,
2153 adapter->tx_fc, adapter->rx_fc);
2154 if (status)
2155 goto err;
2156 }
2157
2158 return 0;
2159 err:
2160 be_close(adapter->netdev);
2161 return -EIO;
2162 }
2163
2164 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2165 {
2166 struct be_dma_mem cmd;
2167 int status = 0;
2168 u8 mac[ETH_ALEN];
2169
2170 memset(mac, 0, ETH_ALEN);
2171
2172 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2173 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2174 GFP_KERNEL);
2175 if (cmd.va == NULL)
2176 return -1;
2177 memset(cmd.va, 0, cmd.size);
2178
2179 if (enable) {
2180 status = pci_write_config_dword(adapter->pdev,
2181 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2182 if (status) {
2183 dev_err(&adapter->pdev->dev,
2184 "Could not enable Wake-on-lan\n");
2185 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2186 cmd.dma);
2187 return status;
2188 }
2189 status = be_cmd_enable_magic_wol(adapter,
2190 adapter->netdev->dev_addr, &cmd);
2191 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2192 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2193 } else {
2194 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2195 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2196 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2197 }
2198
2199 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2200 return status;
2201 }
2202
2203 /*
2204 * Generate a seed MAC address from the PF MAC Address using jhash.
2205 * MAC Address for VFs are assigned incrementally starting from the seed.
2206 * These addresses are programmed in the ASIC by the PF and the VF driver
2207 * queries for the MAC address during its probe.
2208 */
2209 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2210 {
2211 u32 vf = 0;
2212 int status = 0;
2213 u8 mac[ETH_ALEN];
2214
2215 be_vf_eth_addr_generate(adapter, mac);
2216
2217 for (vf = 0; vf < num_vfs; vf++) {
2218 status = be_cmd_pmac_add(adapter, mac,
2219 adapter->vf_cfg[vf].vf_if_handle,
2220 &adapter->vf_cfg[vf].vf_pmac_id,
2221 vf + 1);
2222 if (status)
2223 dev_err(&adapter->pdev->dev,
2224 "Mac address add failed for VF %d\n", vf);
2225 else
2226 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
2227
2228 mac[5] += 1;
2229 }
2230 return status;
2231 }
2232
2233 static inline void be_vf_eth_addr_rem(struct be_adapter *adapter)
2234 {
2235 u32 vf;
2236
2237 for (vf = 0; vf < num_vfs; vf++) {
2238 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
2239 be_cmd_pmac_del(adapter,
2240 adapter->vf_cfg[vf].vf_if_handle,
2241 adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
2242 }
2243 }
2244
2245 static int be_setup(struct be_adapter *adapter)
2246 {
2247 struct net_device *netdev = adapter->netdev;
2248 u32 cap_flags, en_flags, vf = 0;
2249 int status;
2250 u8 mac[ETH_ALEN];
2251
2252 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED |
2253 BE_IF_FLAGS_BROADCAST |
2254 BE_IF_FLAGS_MULTICAST;
2255
2256 if (be_physfn(adapter)) {
2257 cap_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS |
2258 BE_IF_FLAGS_PROMISCUOUS |
2259 BE_IF_FLAGS_PASS_L3L4_ERRORS;
2260 en_flags |= BE_IF_FLAGS_PASS_L3L4_ERRORS;
2261
2262 if (be_multi_rxq(adapter)) {
2263 cap_flags |= BE_IF_FLAGS_RSS;
2264 en_flags |= BE_IF_FLAGS_RSS;
2265 }
2266 }
2267
2268 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2269 netdev->dev_addr, false/* pmac_invalid */,
2270 &adapter->if_handle, &adapter->pmac_id, 0);
2271 if (status != 0)
2272 goto do_none;
2273
2274 if (be_physfn(adapter)) {
2275 if (adapter->sriov_enabled) {
2276 while (vf < num_vfs) {
2277 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED |
2278 BE_IF_FLAGS_BROADCAST;
2279 status = be_cmd_if_create(adapter, cap_flags,
2280 en_flags, mac, true,
2281 &adapter->vf_cfg[vf].vf_if_handle,
2282 NULL, vf+1);
2283 if (status) {
2284 dev_err(&adapter->pdev->dev,
2285 "Interface Create failed for VF %d\n",
2286 vf);
2287 goto if_destroy;
2288 }
2289 adapter->vf_cfg[vf].vf_pmac_id =
2290 BE_INVALID_PMAC_ID;
2291 vf++;
2292 }
2293 }
2294 } else {
2295 status = be_cmd_mac_addr_query(adapter, mac,
2296 MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
2297 if (!status) {
2298 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2299 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2300 }
2301 }
2302
2303 status = be_tx_queues_create(adapter);
2304 if (status != 0)
2305 goto if_destroy;
2306
2307 status = be_rx_queues_create(adapter);
2308 if (status != 0)
2309 goto tx_qs_destroy;
2310
2311 status = be_mcc_queues_create(adapter);
2312 if (status != 0)
2313 goto rx_qs_destroy;
2314
2315 adapter->link_speed = -1;
2316
2317 return 0;
2318
2319 be_mcc_queues_destroy(adapter);
2320 rx_qs_destroy:
2321 be_rx_queues_destroy(adapter);
2322 tx_qs_destroy:
2323 be_tx_queues_destroy(adapter);
2324 if_destroy:
2325 if (be_physfn(adapter) && adapter->sriov_enabled)
2326 for (vf = 0; vf < num_vfs; vf++)
2327 if (adapter->vf_cfg[vf].vf_if_handle)
2328 be_cmd_if_destroy(adapter,
2329 adapter->vf_cfg[vf].vf_if_handle,
2330 vf + 1);
2331 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2332 do_none:
2333 return status;
2334 }
2335
2336 static int be_clear(struct be_adapter *adapter)
2337 {
2338 int vf;
2339
2340 if (be_physfn(adapter) && adapter->sriov_enabled)
2341 be_vf_eth_addr_rem(adapter);
2342
2343 be_mcc_queues_destroy(adapter);
2344 be_rx_queues_destroy(adapter);
2345 be_tx_queues_destroy(adapter);
2346
2347 if (be_physfn(adapter) && adapter->sriov_enabled)
2348 for (vf = 0; vf < num_vfs; vf++)
2349 if (adapter->vf_cfg[vf].vf_if_handle)
2350 be_cmd_if_destroy(adapter,
2351 adapter->vf_cfg[vf].vf_if_handle,
2352 vf + 1);
2353
2354 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2355
2356 /* tell fw we're done with firing cmds */
2357 be_cmd_fw_clean(adapter);
2358 return 0;
2359 }
2360
2361
2362 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
2363 static bool be_flash_redboot(struct be_adapter *adapter,
2364 const u8 *p, u32 img_start, int image_size,
2365 int hdr_size)
2366 {
2367 u32 crc_offset;
2368 u8 flashed_crc[4];
2369 int status;
2370
2371 crc_offset = hdr_size + img_start + image_size - 4;
2372
2373 p += crc_offset;
2374
2375 status = be_cmd_get_flash_crc(adapter, flashed_crc,
2376 (image_size - 4));
2377 if (status) {
2378 dev_err(&adapter->pdev->dev,
2379 "could not get crc from flash, not flashing redboot\n");
2380 return false;
2381 }
2382
2383 /*update redboot only if crc does not match*/
2384 if (!memcmp(flashed_crc, p, 4))
2385 return false;
2386 else
2387 return true;
2388 }
2389
2390 static int be_flash_data(struct be_adapter *adapter,
2391 const struct firmware *fw,
2392 struct be_dma_mem *flash_cmd, int num_of_images)
2393
2394 {
2395 int status = 0, i, filehdr_size = 0;
2396 u32 total_bytes = 0, flash_op;
2397 int num_bytes;
2398 const u8 *p = fw->data;
2399 struct be_cmd_write_flashrom *req = flash_cmd->va;
2400 const struct flash_comp *pflashcomp;
2401 int num_comp;
2402
2403 static const struct flash_comp gen3_flash_types[9] = {
2404 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
2405 FLASH_IMAGE_MAX_SIZE_g3},
2406 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
2407 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
2408 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
2409 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2410 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
2411 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2412 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
2413 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2414 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
2415 FLASH_IMAGE_MAX_SIZE_g3},
2416 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
2417 FLASH_IMAGE_MAX_SIZE_g3},
2418 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
2419 FLASH_IMAGE_MAX_SIZE_g3},
2420 { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW,
2421 FLASH_NCSI_IMAGE_MAX_SIZE_g3}
2422 };
2423 static const struct flash_comp gen2_flash_types[8] = {
2424 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
2425 FLASH_IMAGE_MAX_SIZE_g2},
2426 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
2427 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
2428 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
2429 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2430 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
2431 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2432 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
2433 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2434 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
2435 FLASH_IMAGE_MAX_SIZE_g2},
2436 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
2437 FLASH_IMAGE_MAX_SIZE_g2},
2438 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
2439 FLASH_IMAGE_MAX_SIZE_g2}
2440 };
2441
2442 if (adapter->generation == BE_GEN3) {
2443 pflashcomp = gen3_flash_types;
2444 filehdr_size = sizeof(struct flash_file_hdr_g3);
2445 num_comp = ARRAY_SIZE(gen3_flash_types);
2446 } else {
2447 pflashcomp = gen2_flash_types;
2448 filehdr_size = sizeof(struct flash_file_hdr_g2);
2449 num_comp = ARRAY_SIZE(gen2_flash_types);
2450 }
2451 for (i = 0; i < num_comp; i++) {
2452 if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) &&
2453 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
2454 continue;
2455 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
2456 (!be_flash_redboot(adapter, fw->data,
2457 pflashcomp[i].offset, pflashcomp[i].size, filehdr_size +
2458 (num_of_images * sizeof(struct image_hdr)))))
2459 continue;
2460 p = fw->data;
2461 p += filehdr_size + pflashcomp[i].offset
2462 + (num_of_images * sizeof(struct image_hdr));
2463 if (p + pflashcomp[i].size > fw->data + fw->size)
2464 return -1;
2465 total_bytes = pflashcomp[i].size;
2466 while (total_bytes) {
2467 if (total_bytes > 32*1024)
2468 num_bytes = 32*1024;
2469 else
2470 num_bytes = total_bytes;
2471 total_bytes -= num_bytes;
2472
2473 if (!total_bytes)
2474 flash_op = FLASHROM_OPER_FLASH;
2475 else
2476 flash_op = FLASHROM_OPER_SAVE;
2477 memcpy(req->params.data_buf, p, num_bytes);
2478 p += num_bytes;
2479 status = be_cmd_write_flashrom(adapter, flash_cmd,
2480 pflashcomp[i].optype, flash_op, num_bytes);
2481 if (status) {
2482 dev_err(&adapter->pdev->dev,
2483 "cmd to write to flash rom failed.\n");
2484 return -1;
2485 }
2486 yield();
2487 }
2488 }
2489 return 0;
2490 }
2491
2492 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
2493 {
2494 if (fhdr == NULL)
2495 return 0;
2496 if (fhdr->build[0] == '3')
2497 return BE_GEN3;
2498 else if (fhdr->build[0] == '2')
2499 return BE_GEN2;
2500 else
2501 return 0;
2502 }
2503
2504 int be_load_fw(struct be_adapter *adapter, u8 *func)
2505 {
2506 char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
2507 const struct firmware *fw;
2508 struct flash_file_hdr_g2 *fhdr;
2509 struct flash_file_hdr_g3 *fhdr3;
2510 struct image_hdr *img_hdr_ptr = NULL;
2511 struct be_dma_mem flash_cmd;
2512 int status, i = 0, num_imgs = 0;
2513 const u8 *p;
2514
2515 if (!netif_running(adapter->netdev)) {
2516 dev_err(&adapter->pdev->dev,
2517 "Firmware load not allowed (interface is down)\n");
2518 return -EPERM;
2519 }
2520
2521 strcpy(fw_file, func);
2522
2523 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
2524 if (status)
2525 goto fw_exit;
2526
2527 p = fw->data;
2528 fhdr = (struct flash_file_hdr_g2 *) p;
2529 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
2530
2531 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
2532 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2533 &flash_cmd.dma, GFP_KERNEL);
2534 if (!flash_cmd.va) {
2535 status = -ENOMEM;
2536 dev_err(&adapter->pdev->dev,
2537 "Memory allocation failure while flashing\n");
2538 goto fw_exit;
2539 }
2540
2541 if ((adapter->generation == BE_GEN3) &&
2542 (get_ufigen_type(fhdr) == BE_GEN3)) {
2543 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
2544 num_imgs = le32_to_cpu(fhdr3->num_imgs);
2545 for (i = 0; i < num_imgs; i++) {
2546 img_hdr_ptr = (struct image_hdr *) (fw->data +
2547 (sizeof(struct flash_file_hdr_g3) +
2548 i * sizeof(struct image_hdr)));
2549 if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
2550 status = be_flash_data(adapter, fw, &flash_cmd,
2551 num_imgs);
2552 }
2553 } else if ((adapter->generation == BE_GEN2) &&
2554 (get_ufigen_type(fhdr) == BE_GEN2)) {
2555 status = be_flash_data(adapter, fw, &flash_cmd, 0);
2556 } else {
2557 dev_err(&adapter->pdev->dev,
2558 "UFI and Interface are not compatible for flashing\n");
2559 status = -1;
2560 }
2561
2562 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
2563 flash_cmd.dma);
2564 if (status) {
2565 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2566 goto fw_exit;
2567 }
2568
2569 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2570
2571 fw_exit:
2572 release_firmware(fw);
2573 return status;
2574 }
2575
2576 static struct net_device_ops be_netdev_ops = {
2577 .ndo_open = be_open,
2578 .ndo_stop = be_close,
2579 .ndo_start_xmit = be_xmit,
2580 .ndo_set_rx_mode = be_set_multicast_list,
2581 .ndo_set_mac_address = be_mac_addr_set,
2582 .ndo_change_mtu = be_change_mtu,
2583 .ndo_validate_addr = eth_validate_addr,
2584 .ndo_vlan_rx_register = be_vlan_register,
2585 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2586 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2587 .ndo_set_vf_mac = be_set_vf_mac,
2588 .ndo_set_vf_vlan = be_set_vf_vlan,
2589 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
2590 .ndo_get_vf_config = be_get_vf_config
2591 };
2592
2593 static void be_netdev_init(struct net_device *netdev)
2594 {
2595 struct be_adapter *adapter = netdev_priv(netdev);
2596 struct be_rx_obj *rxo;
2597 int i;
2598
2599 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2600 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
2601 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2602 NETIF_F_GRO | NETIF_F_TSO6;
2603
2604 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO |
2605 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
2606
2607 if (lancer_chip(adapter))
2608 netdev->vlan_features |= NETIF_F_TSO6;
2609
2610 netdev->flags |= IFF_MULTICAST;
2611
2612 adapter->rx_csum = true;
2613
2614 /* Default settings for Rx and Tx flow control */
2615 adapter->rx_fc = true;
2616 adapter->tx_fc = true;
2617
2618 netif_set_gso_max_size(netdev, 65535);
2619
2620 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2621
2622 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2623
2624 for_all_rx_queues(adapter, rxo, i)
2625 netif_napi_add(netdev, &rxo->rx_eq.napi, be_poll_rx,
2626 BE_NAPI_WEIGHT);
2627
2628 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2629 BE_NAPI_WEIGHT);
2630 }
2631
2632 static void be_unmap_pci_bars(struct be_adapter *adapter)
2633 {
2634 if (adapter->csr)
2635 iounmap(adapter->csr);
2636 if (adapter->db)
2637 iounmap(adapter->db);
2638 if (adapter->pcicfg && be_physfn(adapter))
2639 iounmap(adapter->pcicfg);
2640 }
2641
2642 static int be_map_pci_bars(struct be_adapter *adapter)
2643 {
2644 u8 __iomem *addr;
2645 int pcicfg_reg, db_reg;
2646
2647 if (lancer_chip(adapter)) {
2648 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 0),
2649 pci_resource_len(adapter->pdev, 0));
2650 if (addr == NULL)
2651 return -ENOMEM;
2652 adapter->db = addr;
2653 return 0;
2654 }
2655
2656 if (be_physfn(adapter)) {
2657 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2658 pci_resource_len(adapter->pdev, 2));
2659 if (addr == NULL)
2660 return -ENOMEM;
2661 adapter->csr = addr;
2662 }
2663
2664 if (adapter->generation == BE_GEN2) {
2665 pcicfg_reg = 1;
2666 db_reg = 4;
2667 } else {
2668 pcicfg_reg = 0;
2669 if (be_physfn(adapter))
2670 db_reg = 4;
2671 else
2672 db_reg = 0;
2673 }
2674 addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
2675 pci_resource_len(adapter->pdev, db_reg));
2676 if (addr == NULL)
2677 goto pci_map_err;
2678 adapter->db = addr;
2679
2680 if (be_physfn(adapter)) {
2681 addr = ioremap_nocache(
2682 pci_resource_start(adapter->pdev, pcicfg_reg),
2683 pci_resource_len(adapter->pdev, pcicfg_reg));
2684 if (addr == NULL)
2685 goto pci_map_err;
2686 adapter->pcicfg = addr;
2687 } else
2688 adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
2689
2690 return 0;
2691 pci_map_err:
2692 be_unmap_pci_bars(adapter);
2693 return -ENOMEM;
2694 }
2695
2696
2697 static void be_ctrl_cleanup(struct be_adapter *adapter)
2698 {
2699 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2700
2701 be_unmap_pci_bars(adapter);
2702
2703 if (mem->va)
2704 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
2705 mem->dma);
2706
2707 mem = &adapter->mc_cmd_mem;
2708 if (mem->va)
2709 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
2710 mem->dma);
2711 }
2712
2713 static int be_ctrl_init(struct be_adapter *adapter)
2714 {
2715 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2716 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2717 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2718 int status;
2719
2720 status = be_map_pci_bars(adapter);
2721 if (status)
2722 goto done;
2723
2724 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2725 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
2726 mbox_mem_alloc->size,
2727 &mbox_mem_alloc->dma,
2728 GFP_KERNEL);
2729 if (!mbox_mem_alloc->va) {
2730 status = -ENOMEM;
2731 goto unmap_pci_bars;
2732 }
2733
2734 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2735 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2736 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2737 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2738
2739 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2740 mc_cmd_mem->va = dma_alloc_coherent(&adapter->pdev->dev,
2741 mc_cmd_mem->size, &mc_cmd_mem->dma,
2742 GFP_KERNEL);
2743 if (mc_cmd_mem->va == NULL) {
2744 status = -ENOMEM;
2745 goto free_mbox;
2746 }
2747 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2748
2749 mutex_init(&adapter->mbox_lock);
2750 spin_lock_init(&adapter->mcc_lock);
2751 spin_lock_init(&adapter->mcc_cq_lock);
2752
2753 init_completion(&adapter->flash_compl);
2754 pci_save_state(adapter->pdev);
2755 return 0;
2756
2757 free_mbox:
2758 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
2759 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2760
2761 unmap_pci_bars:
2762 be_unmap_pci_bars(adapter);
2763
2764 done:
2765 return status;
2766 }
2767
2768 static void be_stats_cleanup(struct be_adapter *adapter)
2769 {
2770 struct be_dma_mem *cmd = &adapter->stats_cmd;
2771
2772 if (cmd->va)
2773 dma_free_coherent(&adapter->pdev->dev, cmd->size,
2774 cmd->va, cmd->dma);
2775 }
2776
2777 static int be_stats_init(struct be_adapter *adapter)
2778 {
2779 struct be_dma_mem *cmd = &adapter->stats_cmd;
2780
2781 cmd->size = sizeof(struct be_cmd_req_get_stats);
2782 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
2783 GFP_KERNEL);
2784 if (cmd->va == NULL)
2785 return -1;
2786 memset(cmd->va, 0, cmd->size);
2787 return 0;
2788 }
2789
2790 static void __devexit be_remove(struct pci_dev *pdev)
2791 {
2792 struct be_adapter *adapter = pci_get_drvdata(pdev);
2793
2794 if (!adapter)
2795 return;
2796
2797 cancel_delayed_work_sync(&adapter->work);
2798
2799 unregister_netdev(adapter->netdev);
2800
2801 be_clear(adapter);
2802
2803 be_stats_cleanup(adapter);
2804
2805 be_ctrl_cleanup(adapter);
2806
2807 be_sriov_disable(adapter);
2808
2809 be_msix_disable(adapter);
2810
2811 pci_set_drvdata(pdev, NULL);
2812 pci_release_regions(pdev);
2813 pci_disable_device(pdev);
2814
2815 free_netdev(adapter->netdev);
2816 }
2817
2818 static int be_get_config(struct be_adapter *adapter)
2819 {
2820 int status;
2821 u8 mac[ETH_ALEN];
2822
2823 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2824 if (status)
2825 return status;
2826
2827 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
2828 &adapter->function_mode, &adapter->function_caps);
2829 if (status)
2830 return status;
2831
2832 memset(mac, 0, ETH_ALEN);
2833
2834 if (be_physfn(adapter)) {
2835 status = be_cmd_mac_addr_query(adapter, mac,
2836 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2837
2838 if (status)
2839 return status;
2840
2841 if (!is_valid_ether_addr(mac))
2842 return -EADDRNOTAVAIL;
2843
2844 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2845 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2846 }
2847
2848 if (adapter->function_mode & 0x400)
2849 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
2850 else
2851 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2852
2853 status = be_cmd_get_cntl_attributes(adapter);
2854 if (status)
2855 return status;
2856
2857 be_cmd_check_native_mode(adapter);
2858 return 0;
2859 }
2860
2861 static int be_dev_family_check(struct be_adapter *adapter)
2862 {
2863 struct pci_dev *pdev = adapter->pdev;
2864 u32 sli_intf = 0, if_type;
2865
2866 switch (pdev->device) {
2867 case BE_DEVICE_ID1:
2868 case OC_DEVICE_ID1:
2869 adapter->generation = BE_GEN2;
2870 break;
2871 case BE_DEVICE_ID2:
2872 case OC_DEVICE_ID2:
2873 adapter->generation = BE_GEN3;
2874 break;
2875 case OC_DEVICE_ID3:
2876 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
2877 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
2878 SLI_INTF_IF_TYPE_SHIFT;
2879
2880 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
2881 if_type != 0x02) {
2882 dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
2883 return -EINVAL;
2884 }
2885 if (num_vfs > 0) {
2886 dev_err(&pdev->dev, "VFs not supported\n");
2887 return -EINVAL;
2888 }
2889 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
2890 SLI_INTF_FAMILY_SHIFT);
2891 adapter->generation = BE_GEN3;
2892 break;
2893 default:
2894 adapter->generation = 0;
2895 }
2896 return 0;
2897 }
2898
2899 static int lancer_wait_ready(struct be_adapter *adapter)
2900 {
2901 #define SLIPORT_READY_TIMEOUT 500
2902 u32 sliport_status;
2903 int status = 0, i;
2904
2905 for (i = 0; i < SLIPORT_READY_TIMEOUT; i++) {
2906 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2907 if (sliport_status & SLIPORT_STATUS_RDY_MASK)
2908 break;
2909
2910 msleep(20);
2911 }
2912
2913 if (i == SLIPORT_READY_TIMEOUT)
2914 status = -1;
2915
2916 return status;
2917 }
2918
2919 static int lancer_test_and_set_rdy_state(struct be_adapter *adapter)
2920 {
2921 int status;
2922 u32 sliport_status, err, reset_needed;
2923 status = lancer_wait_ready(adapter);
2924 if (!status) {
2925 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2926 err = sliport_status & SLIPORT_STATUS_ERR_MASK;
2927 reset_needed = sliport_status & SLIPORT_STATUS_RN_MASK;
2928 if (err && reset_needed) {
2929 iowrite32(SLI_PORT_CONTROL_IP_MASK,
2930 adapter->db + SLIPORT_CONTROL_OFFSET);
2931
2932 /* check adapter has corrected the error */
2933 status = lancer_wait_ready(adapter);
2934 sliport_status = ioread32(adapter->db +
2935 SLIPORT_STATUS_OFFSET);
2936 sliport_status &= (SLIPORT_STATUS_ERR_MASK |
2937 SLIPORT_STATUS_RN_MASK);
2938 if (status || sliport_status)
2939 status = -1;
2940 } else if (err || reset_needed) {
2941 status = -1;
2942 }
2943 }
2944 return status;
2945 }
2946
2947 static int __devinit be_probe(struct pci_dev *pdev,
2948 const struct pci_device_id *pdev_id)
2949 {
2950 int status = 0;
2951 struct be_adapter *adapter;
2952 struct net_device *netdev;
2953
2954 status = pci_enable_device(pdev);
2955 if (status)
2956 goto do_none;
2957
2958 status = pci_request_regions(pdev, DRV_NAME);
2959 if (status)
2960 goto disable_dev;
2961 pci_set_master(pdev);
2962
2963 netdev = alloc_etherdev(sizeof(struct be_adapter));
2964 if (netdev == NULL) {
2965 status = -ENOMEM;
2966 goto rel_reg;
2967 }
2968 adapter = netdev_priv(netdev);
2969 adapter->pdev = pdev;
2970 pci_set_drvdata(pdev, adapter);
2971
2972 status = be_dev_family_check(adapter);
2973 if (status)
2974 goto free_netdev;
2975
2976 adapter->netdev = netdev;
2977 SET_NETDEV_DEV(netdev, &pdev->dev);
2978
2979 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
2980 if (!status) {
2981 netdev->features |= NETIF_F_HIGHDMA;
2982 } else {
2983 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
2984 if (status) {
2985 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2986 goto free_netdev;
2987 }
2988 }
2989
2990 be_sriov_enable(adapter);
2991
2992 status = be_ctrl_init(adapter);
2993 if (status)
2994 goto free_netdev;
2995
2996 if (lancer_chip(adapter)) {
2997 status = lancer_test_and_set_rdy_state(adapter);
2998 if (status) {
2999 dev_err(&pdev->dev, "Adapter in non recoverable error\n");
3000 goto free_netdev;
3001 }
3002 }
3003
3004 /* sync up with fw's ready state */
3005 if (be_physfn(adapter)) {
3006 status = be_cmd_POST(adapter);
3007 if (status)
3008 goto ctrl_clean;
3009 }
3010
3011 /* tell fw we're ready to fire cmds */
3012 status = be_cmd_fw_init(adapter);
3013 if (status)
3014 goto ctrl_clean;
3015
3016 status = be_cmd_reset_function(adapter);
3017 if (status)
3018 goto ctrl_clean;
3019
3020 status = be_stats_init(adapter);
3021 if (status)
3022 goto ctrl_clean;
3023
3024 status = be_get_config(adapter);
3025 if (status)
3026 goto stats_clean;
3027
3028 be_msix_enable(adapter);
3029
3030 INIT_DELAYED_WORK(&adapter->work, be_worker);
3031
3032 status = be_setup(adapter);
3033 if (status)
3034 goto msix_disable;
3035
3036 be_netdev_init(netdev);
3037 status = register_netdev(netdev);
3038 if (status != 0)
3039 goto unsetup;
3040 netif_carrier_off(netdev);
3041
3042 if (be_physfn(adapter) && adapter->sriov_enabled) {
3043 status = be_vf_eth_addr_config(adapter);
3044 if (status)
3045 goto unreg_netdev;
3046 }
3047
3048 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
3049 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
3050 return 0;
3051
3052 unreg_netdev:
3053 unregister_netdev(netdev);
3054 unsetup:
3055 be_clear(adapter);
3056 msix_disable:
3057 be_msix_disable(adapter);
3058 stats_clean:
3059 be_stats_cleanup(adapter);
3060 ctrl_clean:
3061 be_ctrl_cleanup(adapter);
3062 free_netdev:
3063 be_sriov_disable(adapter);
3064 free_netdev(netdev);
3065 pci_set_drvdata(pdev, NULL);
3066 rel_reg:
3067 pci_release_regions(pdev);
3068 disable_dev:
3069 pci_disable_device(pdev);
3070 do_none:
3071 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3072 return status;
3073 }
3074
3075 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3076 {
3077 struct be_adapter *adapter = pci_get_drvdata(pdev);
3078 struct net_device *netdev = adapter->netdev;
3079
3080 cancel_delayed_work_sync(&adapter->work);
3081 if (adapter->wol)
3082 be_setup_wol(adapter, true);
3083
3084 netif_device_detach(netdev);
3085 if (netif_running(netdev)) {
3086 rtnl_lock();
3087 be_close(netdev);
3088 rtnl_unlock();
3089 }
3090 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
3091 be_clear(adapter);
3092
3093 be_msix_disable(adapter);
3094 pci_save_state(pdev);
3095 pci_disable_device(pdev);
3096 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3097 return 0;
3098 }
3099
3100 static int be_resume(struct pci_dev *pdev)
3101 {
3102 int status = 0;
3103 struct be_adapter *adapter = pci_get_drvdata(pdev);
3104 struct net_device *netdev = adapter->netdev;
3105
3106 netif_device_detach(netdev);
3107
3108 status = pci_enable_device(pdev);
3109 if (status)
3110 return status;
3111
3112 pci_set_power_state(pdev, 0);
3113 pci_restore_state(pdev);
3114
3115 be_msix_enable(adapter);
3116 /* tell fw we're ready to fire cmds */
3117 status = be_cmd_fw_init(adapter);
3118 if (status)
3119 return status;
3120
3121 be_setup(adapter);
3122 if (netif_running(netdev)) {
3123 rtnl_lock();
3124 be_open(netdev);
3125 rtnl_unlock();
3126 }
3127 netif_device_attach(netdev);
3128
3129 if (adapter->wol)
3130 be_setup_wol(adapter, false);
3131
3132 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
3133 return 0;
3134 }
3135
3136 /*
3137 * An FLR will stop BE from DMAing any data.
3138 */
3139 static void be_shutdown(struct pci_dev *pdev)
3140 {
3141 struct be_adapter *adapter = pci_get_drvdata(pdev);
3142 struct net_device *netdev = adapter->netdev;
3143
3144 if (netif_running(netdev))
3145 cancel_delayed_work_sync(&adapter->work);
3146
3147 netif_device_detach(netdev);
3148
3149 be_cmd_reset_function(adapter);
3150
3151 if (adapter->wol)
3152 be_setup_wol(adapter, true);
3153
3154 pci_disable_device(pdev);
3155 }
3156
3157 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
3158 pci_channel_state_t state)
3159 {
3160 struct be_adapter *adapter = pci_get_drvdata(pdev);
3161 struct net_device *netdev = adapter->netdev;
3162
3163 dev_err(&adapter->pdev->dev, "EEH error detected\n");
3164
3165 adapter->eeh_err = true;
3166
3167 netif_device_detach(netdev);
3168
3169 if (netif_running(netdev)) {
3170 rtnl_lock();
3171 be_close(netdev);
3172 rtnl_unlock();
3173 }
3174 be_clear(adapter);
3175
3176 if (state == pci_channel_io_perm_failure)
3177 return PCI_ERS_RESULT_DISCONNECT;
3178
3179 pci_disable_device(pdev);
3180
3181 return PCI_ERS_RESULT_NEED_RESET;
3182 }
3183
3184 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
3185 {
3186 struct be_adapter *adapter = pci_get_drvdata(pdev);
3187 int status;
3188
3189 dev_info(&adapter->pdev->dev, "EEH reset\n");
3190 adapter->eeh_err = false;
3191
3192 status = pci_enable_device(pdev);
3193 if (status)
3194 return PCI_ERS_RESULT_DISCONNECT;
3195
3196 pci_set_master(pdev);
3197 pci_set_power_state(pdev, 0);
3198 pci_restore_state(pdev);
3199
3200 /* Check if card is ok and fw is ready */
3201 status = be_cmd_POST(adapter);
3202 if (status)
3203 return PCI_ERS_RESULT_DISCONNECT;
3204
3205 return PCI_ERS_RESULT_RECOVERED;
3206 }
3207
3208 static void be_eeh_resume(struct pci_dev *pdev)
3209 {
3210 int status = 0;
3211 struct be_adapter *adapter = pci_get_drvdata(pdev);
3212 struct net_device *netdev = adapter->netdev;
3213
3214 dev_info(&adapter->pdev->dev, "EEH resume\n");
3215
3216 pci_save_state(pdev);
3217
3218 /* tell fw we're ready to fire cmds */
3219 status = be_cmd_fw_init(adapter);
3220 if (status)
3221 goto err;
3222
3223 status = be_setup(adapter);
3224 if (status)
3225 goto err;
3226
3227 if (netif_running(netdev)) {
3228 status = be_open(netdev);
3229 if (status)
3230 goto err;
3231 }
3232 netif_device_attach(netdev);
3233 return;
3234 err:
3235 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
3236 }
3237
3238 static struct pci_error_handlers be_eeh_handlers = {
3239 .error_detected = be_eeh_err_detected,
3240 .slot_reset = be_eeh_reset,
3241 .resume = be_eeh_resume,
3242 };
3243
3244 static struct pci_driver be_driver = {
3245 .name = DRV_NAME,
3246 .id_table = be_dev_ids,
3247 .probe = be_probe,
3248 .remove = be_remove,
3249 .suspend = be_suspend,
3250 .resume = be_resume,
3251 .shutdown = be_shutdown,
3252 .err_handler = &be_eeh_handlers
3253 };
3254
3255 static int __init be_init_module(void)
3256 {
3257 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
3258 rx_frag_size != 2048) {
3259 printk(KERN_WARNING DRV_NAME
3260 " : Module param rx_frag_size must be 2048/4096/8192."
3261 " Using 2048\n");
3262 rx_frag_size = 2048;
3263 }
3264
3265 if (num_vfs > 32) {
3266 printk(KERN_WARNING DRV_NAME
3267 " : Module param num_vfs must not be greater than 32."
3268 "Using 32\n");
3269 num_vfs = 32;
3270 }
3271
3272 return pci_register_driver(&be_driver);
3273 }
3274 module_init(be_init_module);
3275
3276 static void __exit be_exit_module(void)
3277 {
3278 pci_unregister_driver(&be_driver);
3279 }
3280 module_exit(be_exit_module);
Linux kernel - Deliverables
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