2 * Copyright (C) 2005 - 2011 Emulex
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.
10 * Contact Information:
11 * linux-drivers@emulex.com
15 * Costa Mesa, CA 92626
18 #include <linux/prefetch.h>
21 #include <asm/div64.h>
23 MODULE_VERSION(DRV_VER);
24 MODULE_DEVICE_TABLE(pci, be_dev_ids);
25 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
26 MODULE_AUTHOR("ServerEngines Corporation");
27 MODULE_LICENSE("GPL");
29 static ushort rx_frag_size = 2048;
30 static unsigned int num_vfs;
31 module_param(rx_frag_size, ushort, S_IRUGO);
32 module_param(num_vfs, uint, S_IRUGO);
33 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
34 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
36 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
37 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
38 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
39 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
40 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
41 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
42 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
45 MODULE_DEVICE_TABLE(pci, be_dev_ids);
46 /* UE Status Low CSR */
47 static const char * const ue_status_low_desc[] = {
81 /* UE Status High CSR */
82 static const char * const ue_status_hi_desc[] = {
117 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
119 struct be_dma_mem *mem = &q->dma_mem;
121 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
125 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
126 u16 len, u16 entry_size)
128 struct be_dma_mem *mem = &q->dma_mem;
130 memset(q, 0, sizeof(*q));
132 q->entry_size = entry_size;
133 mem->size = len * entry_size;
134 mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
138 memset(mem->va, 0, mem->size);
142 static void be_intr_set(struct be_adapter *adapter, bool enable)
144 u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
145 u32 reg = ioread32(addr);
146 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
148 if (adapter->eeh_err)
151 if (!enabled && enable)
152 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
153 else if (enabled && !enable)
154 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
158 iowrite32(reg, addr);
161 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
164 val |= qid & DB_RQ_RING_ID_MASK;
165 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
168 iowrite32(val, adapter->db + DB_RQ_OFFSET);
171 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
174 val |= qid & DB_TXULP_RING_ID_MASK;
175 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
178 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
181 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
182 bool arm, bool clear_int, u16 num_popped)
185 val |= qid & DB_EQ_RING_ID_MASK;
186 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
187 DB_EQ_RING_ID_EXT_MASK_SHIFT);
189 if (adapter->eeh_err)
193 val |= 1 << DB_EQ_REARM_SHIFT;
195 val |= 1 << DB_EQ_CLR_SHIFT;
196 val |= 1 << DB_EQ_EVNT_SHIFT;
197 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
198 iowrite32(val, adapter->db + DB_EQ_OFFSET);
201 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
204 val |= qid & DB_CQ_RING_ID_MASK;
205 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
206 DB_CQ_RING_ID_EXT_MASK_SHIFT);
208 if (adapter->eeh_err)
212 val |= 1 << DB_CQ_REARM_SHIFT;
213 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
214 iowrite32(val, adapter->db + DB_CQ_OFFSET);
217 static int be_mac_addr_set(struct net_device *netdev, void *p)
219 struct be_adapter *adapter = netdev_priv(netdev);
220 struct sockaddr *addr = p;
223 if (!is_valid_ether_addr(addr->sa_data))
224 return -EADDRNOTAVAIL;
226 /* MAC addr configuration will be done in hardware for VFs
227 * by their corresponding PFs. Just copy to netdev addr here
229 if (!be_physfn(adapter))
232 status = be_cmd_pmac_del(adapter, adapter->if_handle,
233 adapter->pmac_id, 0);
237 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
238 adapter->if_handle, &adapter->pmac_id, 0);
241 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
246 static void populate_be2_stats(struct be_adapter *adapter)
249 struct be_drv_stats *drvs = &adapter->drv_stats;
250 struct be_pmem_stats *pmem_sts = be_pmem_stats_from_cmd(adapter);
251 struct be_port_rxf_stats_v0 *port_stats =
252 be_port_rxf_stats_from_cmd(adapter);
253 struct be_rxf_stats_v0 *rxf_stats =
254 be_rxf_stats_from_cmd(adapter);
256 drvs->rx_pause_frames = port_stats->rx_pause_frames;
257 drvs->rx_crc_errors = port_stats->rx_crc_errors;
258 drvs->rx_control_frames = port_stats->rx_control_frames;
259 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
260 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
261 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
262 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
263 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
264 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
265 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
266 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
267 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
268 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
269 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
270 drvs->rx_input_fifo_overflow_drop =
271 port_stats->rx_input_fifo_overflow;
272 drvs->rx_dropped_header_too_small =
273 port_stats->rx_dropped_header_too_small;
274 drvs->rx_address_match_errors =
275 port_stats->rx_address_match_errors;
276 drvs->rx_alignment_symbol_errors =
277 port_stats->rx_alignment_symbol_errors;
279 drvs->tx_pauseframes = port_stats->tx_pauseframes;
280 drvs->tx_controlframes = port_stats->tx_controlframes;
282 if (adapter->port_num)
283 drvs->jabber_events =
284 rxf_stats->port1_jabber_events;
286 drvs->jabber_events =
287 rxf_stats->port0_jabber_events;
288 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
289 drvs->rx_drops_no_txpb = rxf_stats->rx_drops_no_txpb;
290 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
291 drvs->rx_drops_invalid_ring = rxf_stats->rx_drops_invalid_ring;
292 drvs->forwarded_packets = rxf_stats->forwarded_packets;
293 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
294 drvs->rx_drops_no_tpre_descr =
295 rxf_stats->rx_drops_no_tpre_descr;
296 drvs->rx_drops_too_many_frags =
297 rxf_stats->rx_drops_too_many_frags;
298 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
301 static void populate_be3_stats(struct be_adapter *adapter)
303 struct be_drv_stats *drvs = &adapter->drv_stats;
304 struct be_pmem_stats *pmem_sts = be_pmem_stats_from_cmd(adapter);
306 struct be_rxf_stats_v1 *rxf_stats =
307 be_rxf_stats_from_cmd(adapter);
308 struct be_port_rxf_stats_v1 *port_stats =
309 be_port_rxf_stats_from_cmd(adapter);
311 drvs->rx_priority_pause_frames = 0;
312 drvs->pmem_fifo_overflow_drop = 0;
313 drvs->rx_pause_frames = port_stats->rx_pause_frames;
314 drvs->rx_crc_errors = port_stats->rx_crc_errors;
315 drvs->rx_control_frames = port_stats->rx_control_frames;
316 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
317 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
318 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
319 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
320 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
321 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
322 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
323 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
324 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
325 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
326 drvs->rx_dropped_header_too_small =
327 port_stats->rx_dropped_header_too_small;
328 drvs->rx_input_fifo_overflow_drop =
329 port_stats->rx_input_fifo_overflow_drop;
330 drvs->rx_address_match_errors =
331 port_stats->rx_address_match_errors;
332 drvs->rx_alignment_symbol_errors =
333 port_stats->rx_alignment_symbol_errors;
334 drvs->rxpp_fifo_overflow_drop =
335 port_stats->rxpp_fifo_overflow_drop;
336 drvs->tx_pauseframes = port_stats->tx_pauseframes;
337 drvs->tx_controlframes = port_stats->tx_controlframes;
338 drvs->jabber_events = port_stats->jabber_events;
339 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
340 drvs->rx_drops_no_txpb = rxf_stats->rx_drops_no_txpb;
341 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
342 drvs->rx_drops_invalid_ring = rxf_stats->rx_drops_invalid_ring;
343 drvs->forwarded_packets = rxf_stats->forwarded_packets;
344 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
345 drvs->rx_drops_no_tpre_descr =
346 rxf_stats->rx_drops_no_tpre_descr;
347 drvs->rx_drops_too_many_frags =
348 rxf_stats->rx_drops_too_many_frags;
349 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
352 static void populate_lancer_stats(struct be_adapter *adapter)
355 struct be_drv_stats *drvs = &adapter->drv_stats;
356 struct lancer_cmd_pport_stats *pport_stats = pport_stats_from_cmd
358 drvs->rx_priority_pause_frames = 0;
359 drvs->pmem_fifo_overflow_drop = 0;
360 drvs->rx_pause_frames =
361 make_64bit_val(pport_stats->rx_pause_frames_hi,
362 pport_stats->rx_pause_frames_lo);
363 drvs->rx_crc_errors = make_64bit_val(pport_stats->rx_crc_errors_hi,
364 pport_stats->rx_crc_errors_lo);
365 drvs->rx_control_frames =
366 make_64bit_val(pport_stats->rx_control_frames_hi,
367 pport_stats->rx_control_frames_lo);
368 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
369 drvs->rx_frame_too_long =
370 make_64bit_val(pport_stats->rx_internal_mac_errors_hi,
371 pport_stats->rx_frames_too_long_lo);
372 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
373 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
374 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
375 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
376 drvs->rx_dropped_tcp_length =
377 pport_stats->rx_dropped_invalid_tcp_length;
378 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
379 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
380 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
381 drvs->rx_dropped_header_too_small =
382 pport_stats->rx_dropped_header_too_small;
383 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
384 drvs->rx_address_match_errors = pport_stats->rx_address_match_errors;
385 drvs->rx_alignment_symbol_errors =
386 make_64bit_val(pport_stats->rx_symbol_errors_hi,
387 pport_stats->rx_symbol_errors_lo);
388 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
389 drvs->tx_pauseframes = make_64bit_val(pport_stats->tx_pause_frames_hi,
390 pport_stats->tx_pause_frames_lo);
391 drvs->tx_controlframes =
392 make_64bit_val(pport_stats->tx_control_frames_hi,
393 pport_stats->tx_control_frames_lo);
394 drvs->jabber_events = pport_stats->rx_jabbers;
395 drvs->rx_drops_no_pbuf = 0;
396 drvs->rx_drops_no_txpb = 0;
397 drvs->rx_drops_no_erx_descr = 0;
398 drvs->rx_drops_invalid_ring = pport_stats->rx_drops_invalid_queue;
399 drvs->forwarded_packets = make_64bit_val(pport_stats->num_forwards_hi,
400 pport_stats->num_forwards_lo);
401 drvs->rx_drops_mtu = make_64bit_val(pport_stats->rx_drops_mtu_hi,
402 pport_stats->rx_drops_mtu_lo);
403 drvs->rx_drops_no_tpre_descr = 0;
404 drvs->rx_drops_too_many_frags =
405 make_64bit_val(pport_stats->rx_drops_too_many_frags_hi,
406 pport_stats->rx_drops_too_many_frags_lo);
409 void be_parse_stats(struct be_adapter *adapter)
411 if (adapter->generation == BE_GEN3) {
412 if (lancer_chip(adapter))
413 populate_lancer_stats(adapter);
415 populate_be3_stats(adapter);
417 populate_be2_stats(adapter);
421 void netdev_stats_update(struct be_adapter *adapter)
423 struct be_drv_stats *drvs = &adapter->drv_stats;
424 struct net_device_stats *dev_stats = &adapter->netdev->stats;
425 struct be_rx_obj *rxo;
426 struct be_tx_obj *txo;
427 unsigned long pkts = 0, bytes = 0, mcast = 0, drops = 0;
430 for_all_rx_queues(adapter, rxo, i) {
431 pkts += rx_stats(rxo)->rx_pkts;
432 bytes += rx_stats(rxo)->rx_bytes;
433 mcast += rx_stats(rxo)->rx_mcast_pkts;
434 drops += rx_stats(rxo)->rx_dropped;
435 /* no space in linux buffers: best possible approximation */
436 if (adapter->generation == BE_GEN3) {
437 if (!(lancer_chip(adapter))) {
438 struct be_erx_stats_v1 *erx =
439 be_erx_stats_from_cmd(adapter);
440 drops += erx->rx_drops_no_fragments[rxo->q.id];
443 struct be_erx_stats_v0 *erx =
444 be_erx_stats_from_cmd(adapter);
445 drops += erx->rx_drops_no_fragments[rxo->q.id];
448 dev_stats->rx_packets = pkts;
449 dev_stats->rx_bytes = bytes;
450 dev_stats->multicast = mcast;
451 dev_stats->rx_dropped = drops;
454 for_all_tx_queues(adapter, txo, i) {
455 pkts += tx_stats(txo)->be_tx_pkts;
456 bytes += tx_stats(txo)->be_tx_bytes;
458 dev_stats->tx_packets = pkts;
459 dev_stats->tx_bytes = bytes;
461 /* bad pkts received */
462 dev_stats->rx_errors = drvs->rx_crc_errors +
463 drvs->rx_alignment_symbol_errors +
464 drvs->rx_in_range_errors +
465 drvs->rx_out_range_errors +
466 drvs->rx_frame_too_long +
467 drvs->rx_dropped_too_small +
468 drvs->rx_dropped_too_short +
469 drvs->rx_dropped_header_too_small +
470 drvs->rx_dropped_tcp_length +
471 drvs->rx_dropped_runt +
472 drvs->rx_tcp_checksum_errs +
473 drvs->rx_ip_checksum_errs +
474 drvs->rx_udp_checksum_errs;
476 /* detailed rx errors */
477 dev_stats->rx_length_errors = drvs->rx_in_range_errors +
478 drvs->rx_out_range_errors +
479 drvs->rx_frame_too_long;
481 dev_stats->rx_crc_errors = drvs->rx_crc_errors;
483 /* frame alignment errors */
484 dev_stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
486 /* receiver fifo overrun */
487 /* drops_no_pbuf is no per i/f, it's per BE card */
488 dev_stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
489 drvs->rx_input_fifo_overflow_drop +
490 drvs->rx_drops_no_pbuf;
493 void be_link_status_update(struct be_adapter *adapter, bool link_up)
495 struct net_device *netdev = adapter->netdev;
497 /* If link came up or went down */
498 if (adapter->link_up != link_up) {
499 adapter->link_speed = -1;
501 netif_carrier_on(netdev);
502 printk(KERN_INFO "%s: Link up\n", netdev->name);
504 netif_carrier_off(netdev);
505 printk(KERN_INFO "%s: Link down\n", netdev->name);
507 adapter->link_up = link_up;
511 /* Update the EQ delay n BE based on the RX frags consumed / sec */
512 static void be_rx_eqd_update(struct be_adapter *adapter, struct be_rx_obj *rxo)
514 struct be_eq_obj *rx_eq = &rxo->rx_eq;
515 struct be_rx_stats *stats = &rxo->stats;
519 if (!rx_eq->enable_aic)
523 if (time_before(now, stats->rx_fps_jiffies)) {
524 stats->rx_fps_jiffies = now;
528 /* Update once a second */
529 if ((now - stats->rx_fps_jiffies) < HZ)
532 stats->rx_fps = (stats->rx_frags - stats->prev_rx_frags) /
533 ((now - stats->rx_fps_jiffies) / HZ);
535 stats->rx_fps_jiffies = now;
536 stats->prev_rx_frags = stats->rx_frags;
537 eqd = stats->rx_fps / 110000;
539 if (eqd > rx_eq->max_eqd)
540 eqd = rx_eq->max_eqd;
541 if (eqd < rx_eq->min_eqd)
542 eqd = rx_eq->min_eqd;
545 if (eqd != rx_eq->cur_eqd)
546 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
548 rx_eq->cur_eqd = eqd;
551 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
555 do_div(rate, ticks / HZ);
556 rate <<= 3; /* bytes/sec -> bits/sec */
557 do_div(rate, 1000000ul); /* MB/Sec */
562 static void be_tx_rate_update(struct be_tx_obj *txo)
564 struct be_tx_stats *stats = tx_stats(txo);
567 /* Wrapped around? */
568 if (time_before(now, stats->be_tx_jiffies)) {
569 stats->be_tx_jiffies = now;
573 /* Update tx rate once in two seconds */
574 if ((now - stats->be_tx_jiffies) > 2 * HZ) {
575 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
576 - stats->be_tx_bytes_prev,
577 now - stats->be_tx_jiffies);
578 stats->be_tx_jiffies = now;
579 stats->be_tx_bytes_prev = stats->be_tx_bytes;
583 static void be_tx_stats_update(struct be_tx_obj *txo,
584 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
586 struct be_tx_stats *stats = tx_stats(txo);
589 stats->be_tx_wrbs += wrb_cnt;
590 stats->be_tx_bytes += copied;
591 stats->be_tx_pkts += (gso_segs ? gso_segs : 1);
593 stats->be_tx_stops++;
596 /* Determine number of WRB entries needed to xmit data in an skb */
597 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
600 int cnt = (skb->len > skb->data_len);
602 cnt += skb_shinfo(skb)->nr_frags;
604 /* to account for hdr wrb */
606 if (lancer_chip(adapter) || !(cnt & 1)) {
609 /* add a dummy to make it an even num */
613 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
617 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
619 wrb->frag_pa_hi = upper_32_bits(addr);
620 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
621 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
624 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
625 struct sk_buff *skb, u32 wrb_cnt, u32 len)
630 memset(hdr, 0, sizeof(*hdr));
632 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
634 if (skb_is_gso(skb)) {
635 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
636 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
637 hdr, skb_shinfo(skb)->gso_size);
638 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
639 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
640 if (lancer_chip(adapter) && adapter->sli_family ==
641 LANCER_A0_SLI_FAMILY) {
642 AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
644 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
646 else if (is_udp_pkt(skb))
647 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
650 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
652 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
653 else if (is_udp_pkt(skb))
654 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
657 if (vlan_tx_tag_present(skb)) {
658 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
659 vlan_tag = vlan_tx_tag_get(skb);
660 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
661 /* If vlan priority provided by OS is NOT in available bmap */
662 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
663 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
664 adapter->recommended_prio;
665 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
668 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
669 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
670 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
671 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
674 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
679 be_dws_le_to_cpu(wrb, sizeof(*wrb));
681 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
684 dma_unmap_single(dev, dma, wrb->frag_len,
687 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
691 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
692 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
696 struct device *dev = &adapter->pdev->dev;
697 struct sk_buff *first_skb = skb;
698 struct be_eth_wrb *wrb;
699 struct be_eth_hdr_wrb *hdr;
700 bool map_single = false;
703 hdr = queue_head_node(txq);
705 map_head = txq->head;
707 if (skb->len > skb->data_len) {
708 int len = skb_headlen(skb);
709 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
710 if (dma_mapping_error(dev, busaddr))
713 wrb = queue_head_node(txq);
714 wrb_fill(wrb, busaddr, len);
715 be_dws_cpu_to_le(wrb, sizeof(*wrb));
720 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
721 struct skb_frag_struct *frag =
722 &skb_shinfo(skb)->frags[i];
723 busaddr = dma_map_page(dev, frag->page, frag->page_offset,
724 frag->size, DMA_TO_DEVICE);
725 if (dma_mapping_error(dev, busaddr))
727 wrb = queue_head_node(txq);
728 wrb_fill(wrb, busaddr, frag->size);
729 be_dws_cpu_to_le(wrb, sizeof(*wrb));
731 copied += frag->size;
735 wrb = queue_head_node(txq);
737 be_dws_cpu_to_le(wrb, sizeof(*wrb));
741 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
742 be_dws_cpu_to_le(hdr, sizeof(*hdr));
746 txq->head = map_head;
748 wrb = queue_head_node(txq);
749 unmap_tx_frag(dev, wrb, map_single);
751 copied -= wrb->frag_len;
757 static netdev_tx_t be_xmit(struct sk_buff *skb,
758 struct net_device *netdev)
760 struct be_adapter *adapter = netdev_priv(netdev);
761 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
762 struct be_queue_info *txq = &txo->q;
763 u32 wrb_cnt = 0, copied = 0;
764 u32 start = txq->head;
765 bool dummy_wrb, stopped = false;
767 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
769 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
771 /* record the sent skb in the sent_skb table */
772 BUG_ON(txo->sent_skb_list[start]);
773 txo->sent_skb_list[start] = skb;
775 /* Ensure txq has space for the next skb; Else stop the queue
776 * *BEFORE* ringing the tx doorbell, so that we serialze the
777 * tx compls of the current transmit which'll wake up the queue
779 atomic_add(wrb_cnt, &txq->used);
780 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
782 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
786 be_txq_notify(adapter, txq->id, wrb_cnt);
788 be_tx_stats_update(txo, wrb_cnt, copied,
789 skb_shinfo(skb)->gso_segs, stopped);
792 dev_kfree_skb_any(skb);
797 static int be_change_mtu(struct net_device *netdev, int new_mtu)
799 struct be_adapter *adapter = netdev_priv(netdev);
800 if (new_mtu < BE_MIN_MTU ||
801 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
802 (ETH_HLEN + ETH_FCS_LEN))) {
803 dev_info(&adapter->pdev->dev,
804 "MTU must be between %d and %d bytes\n",
806 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
809 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
810 netdev->mtu, new_mtu);
811 netdev->mtu = new_mtu;
816 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
817 * If the user configures more, place BE in vlan promiscuous mode.
819 static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num)
821 u16 vtag[BE_NUM_VLANS_SUPPORTED];
827 if_handle = adapter->vf_cfg[vf_num].vf_if_handle;
828 vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag);
829 status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0);
832 if (adapter->vlans_added <= adapter->max_vlans) {
833 /* Construct VLAN Table to give to HW */
834 for (i = 0; i < VLAN_N_VID; i++) {
835 if (adapter->vlan_tag[i]) {
836 vtag[ntags] = cpu_to_le16(i);
840 status = be_cmd_vlan_config(adapter, adapter->if_handle,
843 status = be_cmd_vlan_config(adapter, adapter->if_handle,
850 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
852 struct be_adapter *adapter = netdev_priv(netdev);
854 adapter->vlans_added++;
855 if (!be_physfn(adapter))
858 adapter->vlan_tag[vid] = 1;
859 if (adapter->vlans_added <= (adapter->max_vlans + 1))
860 be_vid_config(adapter, false, 0);
863 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
865 struct be_adapter *adapter = netdev_priv(netdev);
867 adapter->vlans_added--;
869 if (!be_physfn(adapter))
872 adapter->vlan_tag[vid] = 0;
873 if (adapter->vlans_added <= adapter->max_vlans)
874 be_vid_config(adapter, false, 0);
877 static void be_set_multicast_list(struct net_device *netdev)
879 struct be_adapter *adapter = netdev_priv(netdev);
881 if (netdev->flags & IFF_PROMISC) {
882 be_cmd_promiscuous_config(adapter, true);
883 adapter->promiscuous = true;
887 /* BE was previously in promiscuous mode; disable it */
888 if (adapter->promiscuous) {
889 adapter->promiscuous = false;
890 be_cmd_promiscuous_config(adapter, false);
893 /* Enable multicast promisc if num configured exceeds what we support */
894 if (netdev->flags & IFF_ALLMULTI ||
895 netdev_mc_count(netdev) > BE_MAX_MC) {
896 be_cmd_multicast_set(adapter, adapter->if_handle, NULL,
897 &adapter->mc_cmd_mem);
901 be_cmd_multicast_set(adapter, adapter->if_handle, netdev,
902 &adapter->mc_cmd_mem);
907 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
909 struct be_adapter *adapter = netdev_priv(netdev);
912 if (!adapter->sriov_enabled)
915 if (!is_valid_ether_addr(mac) || (vf >= num_vfs))
918 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
919 status = be_cmd_pmac_del(adapter,
920 adapter->vf_cfg[vf].vf_if_handle,
921 adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
923 status = be_cmd_pmac_add(adapter, mac,
924 adapter->vf_cfg[vf].vf_if_handle,
925 &adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
928 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
931 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
936 static int be_get_vf_config(struct net_device *netdev, int vf,
937 struct ifla_vf_info *vi)
939 struct be_adapter *adapter = netdev_priv(netdev);
941 if (!adapter->sriov_enabled)
948 vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate;
949 vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag;
951 memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN);
956 static int be_set_vf_vlan(struct net_device *netdev,
957 int vf, u16 vlan, u8 qos)
959 struct be_adapter *adapter = netdev_priv(netdev);
962 if (!adapter->sriov_enabled)
965 if ((vf >= num_vfs) || (vlan > 4095))
969 adapter->vf_cfg[vf].vf_vlan_tag = vlan;
970 adapter->vlans_added++;
972 adapter->vf_cfg[vf].vf_vlan_tag = 0;
973 adapter->vlans_added--;
976 status = be_vid_config(adapter, true, vf);
979 dev_info(&adapter->pdev->dev,
980 "VLAN %d config on VF %d failed\n", vlan, vf);
984 static int be_set_vf_tx_rate(struct net_device *netdev,
987 struct be_adapter *adapter = netdev_priv(netdev);
990 if (!adapter->sriov_enabled)
993 if ((vf >= num_vfs) || (rate < 0))
999 adapter->vf_cfg[vf].vf_tx_rate = rate;
1000 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1003 dev_info(&adapter->pdev->dev,
1004 "tx rate %d on VF %d failed\n", rate, vf);
1008 static void be_rx_rate_update(struct be_rx_obj *rxo)
1010 struct be_rx_stats *stats = &rxo->stats;
1011 ulong now = jiffies;
1013 /* Wrapped around */
1014 if (time_before(now, stats->rx_jiffies)) {
1015 stats->rx_jiffies = now;
1019 /* Update the rate once in two seconds */
1020 if ((now - stats->rx_jiffies) < 2 * HZ)
1023 stats->rx_rate = be_calc_rate(stats->rx_bytes - stats->rx_bytes_prev,
1024 now - stats->rx_jiffies);
1025 stats->rx_jiffies = now;
1026 stats->rx_bytes_prev = stats->rx_bytes;
1029 static void be_rx_stats_update(struct be_rx_obj *rxo,
1030 struct be_rx_compl_info *rxcp)
1032 struct be_rx_stats *stats = &rxo->stats;
1035 stats->rx_frags += rxcp->num_rcvd;
1036 stats->rx_bytes += rxcp->pkt_size;
1038 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1039 stats->rx_mcast_pkts++;
1044 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1046 /* L4 checksum is not reliable for non TCP/UDP packets.
1047 * Also ignore ipcksm for ipv6 pkts */
1048 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1049 (rxcp->ip_csum || rxcp->ipv6);
1052 static struct be_rx_page_info *
1053 get_rx_page_info(struct be_adapter *adapter,
1054 struct be_rx_obj *rxo,
1057 struct be_rx_page_info *rx_page_info;
1058 struct be_queue_info *rxq = &rxo->q;
1060 rx_page_info = &rxo->page_info_tbl[frag_idx];
1061 BUG_ON(!rx_page_info->page);
1063 if (rx_page_info->last_page_user) {
1064 dma_unmap_page(&adapter->pdev->dev,
1065 dma_unmap_addr(rx_page_info, bus),
1066 adapter->big_page_size, DMA_FROM_DEVICE);
1067 rx_page_info->last_page_user = false;
1070 atomic_dec(&rxq->used);
1071 return rx_page_info;
1074 /* Throwaway the data in the Rx completion */
1075 static void be_rx_compl_discard(struct be_adapter *adapter,
1076 struct be_rx_obj *rxo,
1077 struct be_rx_compl_info *rxcp)
1079 struct be_queue_info *rxq = &rxo->q;
1080 struct be_rx_page_info *page_info;
1081 u16 i, num_rcvd = rxcp->num_rcvd;
1083 for (i = 0; i < num_rcvd; i++) {
1084 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1085 put_page(page_info->page);
1086 memset(page_info, 0, sizeof(*page_info));
1087 index_inc(&rxcp->rxq_idx, rxq->len);
1092 * skb_fill_rx_data forms a complete skb for an ether frame
1093 * indicated by rxcp.
1095 static void skb_fill_rx_data(struct be_adapter *adapter, struct be_rx_obj *rxo,
1096 struct sk_buff *skb, struct be_rx_compl_info *rxcp)
1098 struct be_queue_info *rxq = &rxo->q;
1099 struct be_rx_page_info *page_info;
1101 u16 hdr_len, curr_frag_len, remaining;
1104 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1105 start = page_address(page_info->page) + page_info->page_offset;
1108 /* Copy data in the first descriptor of this completion */
1109 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1111 /* Copy the header portion into skb_data */
1112 hdr_len = min(BE_HDR_LEN, curr_frag_len);
1113 memcpy(skb->data, start, hdr_len);
1114 skb->len = curr_frag_len;
1115 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1116 /* Complete packet has now been moved to data */
1117 put_page(page_info->page);
1119 skb->tail += curr_frag_len;
1121 skb_shinfo(skb)->nr_frags = 1;
1122 skb_shinfo(skb)->frags[0].page = page_info->page;
1123 skb_shinfo(skb)->frags[0].page_offset =
1124 page_info->page_offset + hdr_len;
1125 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
1126 skb->data_len = curr_frag_len - hdr_len;
1127 skb->tail += hdr_len;
1129 page_info->page = NULL;
1131 if (rxcp->pkt_size <= rx_frag_size) {
1132 BUG_ON(rxcp->num_rcvd != 1);
1136 /* More frags present for this completion */
1137 index_inc(&rxcp->rxq_idx, rxq->len);
1138 remaining = rxcp->pkt_size - curr_frag_len;
1139 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1140 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1141 curr_frag_len = min(remaining, rx_frag_size);
1143 /* Coalesce all frags from the same physical page in one slot */
1144 if (page_info->page_offset == 0) {
1147 skb_shinfo(skb)->frags[j].page = page_info->page;
1148 skb_shinfo(skb)->frags[j].page_offset =
1149 page_info->page_offset;
1150 skb_shinfo(skb)->frags[j].size = 0;
1151 skb_shinfo(skb)->nr_frags++;
1153 put_page(page_info->page);
1156 skb_shinfo(skb)->frags[j].size += curr_frag_len;
1157 skb->len += curr_frag_len;
1158 skb->data_len += curr_frag_len;
1160 remaining -= curr_frag_len;
1161 index_inc(&rxcp->rxq_idx, rxq->len);
1162 page_info->page = NULL;
1164 BUG_ON(j > MAX_SKB_FRAGS);
1167 /* Process the RX completion indicated by rxcp when GRO is disabled */
1168 static void be_rx_compl_process(struct be_adapter *adapter,
1169 struct be_rx_obj *rxo,
1170 struct be_rx_compl_info *rxcp)
1172 struct net_device *netdev = adapter->netdev;
1173 struct sk_buff *skb;
1175 skb = netdev_alloc_skb_ip_align(netdev, BE_HDR_LEN);
1176 if (unlikely(!skb)) {
1177 rxo->stats.rx_dropped++;
1178 be_rx_compl_discard(adapter, rxo, rxcp);
1182 skb_fill_rx_data(adapter, rxo, skb, rxcp);
1184 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1185 skb->ip_summed = CHECKSUM_UNNECESSARY;
1187 skb_checksum_none_assert(skb);
1189 skb->truesize = skb->len + sizeof(struct sk_buff);
1190 skb->protocol = eth_type_trans(skb, netdev);
1191 if (adapter->netdev->features & NETIF_F_RXHASH)
1192 skb->rxhash = rxcp->rss_hash;
1195 if (unlikely(rxcp->vlanf))
1196 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1198 netif_receive_skb(skb);
1201 /* Process the RX completion indicated by rxcp when GRO is enabled */
1202 static void be_rx_compl_process_gro(struct be_adapter *adapter,
1203 struct be_rx_obj *rxo,
1204 struct be_rx_compl_info *rxcp)
1206 struct be_rx_page_info *page_info;
1207 struct sk_buff *skb = NULL;
1208 struct be_queue_info *rxq = &rxo->q;
1209 struct be_eq_obj *eq_obj = &rxo->rx_eq;
1210 u16 remaining, curr_frag_len;
1213 skb = napi_get_frags(&eq_obj->napi);
1215 be_rx_compl_discard(adapter, rxo, rxcp);
1219 remaining = rxcp->pkt_size;
1220 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1221 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1223 curr_frag_len = min(remaining, rx_frag_size);
1225 /* Coalesce all frags from the same physical page in one slot */
1226 if (i == 0 || page_info->page_offset == 0) {
1227 /* First frag or Fresh page */
1229 skb_shinfo(skb)->frags[j].page = page_info->page;
1230 skb_shinfo(skb)->frags[j].page_offset =
1231 page_info->page_offset;
1232 skb_shinfo(skb)->frags[j].size = 0;
1234 put_page(page_info->page);
1236 skb_shinfo(skb)->frags[j].size += curr_frag_len;
1238 remaining -= curr_frag_len;
1239 index_inc(&rxcp->rxq_idx, rxq->len);
1240 memset(page_info, 0, sizeof(*page_info));
1242 BUG_ON(j > MAX_SKB_FRAGS);
1244 skb_shinfo(skb)->nr_frags = j + 1;
1245 skb->len = rxcp->pkt_size;
1246 skb->data_len = rxcp->pkt_size;
1247 skb->truesize += rxcp->pkt_size;
1248 skb->ip_summed = CHECKSUM_UNNECESSARY;
1249 if (adapter->netdev->features & NETIF_F_RXHASH)
1250 skb->rxhash = rxcp->rss_hash;
1252 if (unlikely(rxcp->vlanf))
1253 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1255 napi_gro_frags(&eq_obj->napi);
1258 static void be_parse_rx_compl_v1(struct be_adapter *adapter,
1259 struct be_eth_rx_compl *compl,
1260 struct be_rx_compl_info *rxcp)
1263 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1264 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1265 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1266 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1267 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1269 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1271 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1273 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1275 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1277 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1279 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1281 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp);
1283 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1285 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1290 static void be_parse_rx_compl_v0(struct be_adapter *adapter,
1291 struct be_eth_rx_compl *compl,
1292 struct be_rx_compl_info *rxcp)
1295 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1296 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1297 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1298 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1299 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1301 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1303 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1305 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1307 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1309 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1311 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1313 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp);
1315 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1317 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1322 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1324 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1325 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1326 struct be_adapter *adapter = rxo->adapter;
1328 /* For checking the valid bit it is Ok to use either definition as the
1329 * valid bit is at the same position in both v0 and v1 Rx compl */
1330 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1334 be_dws_le_to_cpu(compl, sizeof(*compl));
1336 if (adapter->be3_native)
1337 be_parse_rx_compl_v1(adapter, compl, rxcp);
1339 be_parse_rx_compl_v0(adapter, compl, rxcp);
1342 /* vlanf could be wrongly set in some cards.
1343 * ignore if vtm is not set */
1344 if ((adapter->function_mode & 0x400) && !rxcp->vtm)
1347 if (!lancer_chip(adapter))
1348 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1350 if (((adapter->pvid & VLAN_VID_MASK) ==
1351 (rxcp->vlan_tag & VLAN_VID_MASK)) &&
1352 !adapter->vlan_tag[rxcp->vlan_tag])
1356 /* As the compl has been parsed, reset it; we wont touch it again */
1357 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1359 queue_tail_inc(&rxo->cq);
1363 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1365 u32 order = get_order(size);
1369 return alloc_pages(gfp, order);
1373 * Allocate a page, split it to fragments of size rx_frag_size and post as
1374 * receive buffers to BE
1376 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1378 struct be_adapter *adapter = rxo->adapter;
1379 struct be_rx_page_info *page_info_tbl = rxo->page_info_tbl;
1380 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1381 struct be_queue_info *rxq = &rxo->q;
1382 struct page *pagep = NULL;
1383 struct be_eth_rx_d *rxd;
1384 u64 page_dmaaddr = 0, frag_dmaaddr;
1385 u32 posted, page_offset = 0;
1387 page_info = &rxo->page_info_tbl[rxq->head];
1388 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1390 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1391 if (unlikely(!pagep)) {
1392 rxo->stats.rx_post_fail++;
1395 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1396 0, adapter->big_page_size,
1398 page_info->page_offset = 0;
1401 page_info->page_offset = page_offset + rx_frag_size;
1403 page_offset = page_info->page_offset;
1404 page_info->page = pagep;
1405 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1406 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1408 rxd = queue_head_node(rxq);
1409 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1410 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1412 /* Any space left in the current big page for another frag? */
1413 if ((page_offset + rx_frag_size + rx_frag_size) >
1414 adapter->big_page_size) {
1416 page_info->last_page_user = true;
1419 prev_page_info = page_info;
1420 queue_head_inc(rxq);
1421 page_info = &page_info_tbl[rxq->head];
1424 prev_page_info->last_page_user = true;
1427 atomic_add(posted, &rxq->used);
1428 be_rxq_notify(adapter, rxq->id, posted);
1429 } else if (atomic_read(&rxq->used) == 0) {
1430 /* Let be_worker replenish when memory is available */
1431 rxo->rx_post_starved = true;
1435 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1437 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1439 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1443 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1445 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1447 queue_tail_inc(tx_cq);
1451 static u16 be_tx_compl_process(struct be_adapter *adapter,
1452 struct be_tx_obj *txo, u16 last_index)
1454 struct be_queue_info *txq = &txo->q;
1455 struct be_eth_wrb *wrb;
1456 struct sk_buff **sent_skbs = txo->sent_skb_list;
1457 struct sk_buff *sent_skb;
1458 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1459 bool unmap_skb_hdr = true;
1461 sent_skb = sent_skbs[txq->tail];
1463 sent_skbs[txq->tail] = NULL;
1465 /* skip header wrb */
1466 queue_tail_inc(txq);
1469 cur_index = txq->tail;
1470 wrb = queue_tail_node(txq);
1471 unmap_tx_frag(&adapter->pdev->dev, wrb,
1472 (unmap_skb_hdr && skb_headlen(sent_skb)));
1473 unmap_skb_hdr = false;
1476 queue_tail_inc(txq);
1477 } while (cur_index != last_index);
1479 kfree_skb(sent_skb);
1483 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1485 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1491 eqe->evt = le32_to_cpu(eqe->evt);
1492 queue_tail_inc(&eq_obj->q);
1496 static int event_handle(struct be_adapter *adapter,
1497 struct be_eq_obj *eq_obj,
1500 struct be_eq_entry *eqe;
1503 while ((eqe = event_get(eq_obj)) != NULL) {
1508 /* Deal with any spurious interrupts that come
1514 be_eq_notify(adapter, eq_obj->q.id, rearm, true, num);
1516 napi_schedule(&eq_obj->napi);
1521 /* Just read and notify events without processing them.
1522 * Used at the time of destroying event queues */
1523 static void be_eq_clean(struct be_adapter *adapter,
1524 struct be_eq_obj *eq_obj)
1526 struct be_eq_entry *eqe;
1529 while ((eqe = event_get(eq_obj)) != NULL) {
1535 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1538 static void be_rx_q_clean(struct be_adapter *adapter, struct be_rx_obj *rxo)
1540 struct be_rx_page_info *page_info;
1541 struct be_queue_info *rxq = &rxo->q;
1542 struct be_queue_info *rx_cq = &rxo->cq;
1543 struct be_rx_compl_info *rxcp;
1546 /* First cleanup pending rx completions */
1547 while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1548 be_rx_compl_discard(adapter, rxo, rxcp);
1549 be_cq_notify(adapter, rx_cq->id, false, 1);
1552 /* Then free posted rx buffer that were not used */
1553 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1554 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1555 page_info = get_rx_page_info(adapter, rxo, tail);
1556 put_page(page_info->page);
1557 memset(page_info, 0, sizeof(*page_info));
1559 BUG_ON(atomic_read(&rxq->used));
1560 rxq->tail = rxq->head = 0;
1563 static void be_tx_compl_clean(struct be_adapter *adapter,
1564 struct be_tx_obj *txo)
1566 struct be_queue_info *tx_cq = &txo->cq;
1567 struct be_queue_info *txq = &txo->q;
1568 struct be_eth_tx_compl *txcp;
1569 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1570 struct sk_buff **sent_skbs = txo->sent_skb_list;
1571 struct sk_buff *sent_skb;
1574 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1576 while ((txcp = be_tx_compl_get(tx_cq))) {
1577 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1579 num_wrbs += be_tx_compl_process(adapter, txo, end_idx);
1583 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1584 atomic_sub(num_wrbs, &txq->used);
1589 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1595 if (atomic_read(&txq->used))
1596 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1597 atomic_read(&txq->used));
1599 /* free posted tx for which compls will never arrive */
1600 while (atomic_read(&txq->used)) {
1601 sent_skb = sent_skbs[txq->tail];
1602 end_idx = txq->tail;
1604 wrb_cnt_for_skb(adapter, sent_skb, &dummy_wrb) - 1,
1606 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1607 atomic_sub(num_wrbs, &txq->used);
1611 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1613 struct be_queue_info *q;
1615 q = &adapter->mcc_obj.q;
1617 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1618 be_queue_free(adapter, q);
1620 q = &adapter->mcc_obj.cq;
1622 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1623 be_queue_free(adapter, q);
1626 /* Must be called only after TX qs are created as MCC shares TX EQ */
1627 static int be_mcc_queues_create(struct be_adapter *adapter)
1629 struct be_queue_info *q, *cq;
1631 /* Alloc MCC compl queue */
1632 cq = &adapter->mcc_obj.cq;
1633 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1634 sizeof(struct be_mcc_compl)))
1637 /* Ask BE to create MCC compl queue; share TX's eq */
1638 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1641 /* Alloc MCC queue */
1642 q = &adapter->mcc_obj.q;
1643 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1644 goto mcc_cq_destroy;
1646 /* Ask BE to create MCC queue */
1647 if (be_cmd_mccq_create(adapter, q, cq))
1653 be_queue_free(adapter, q);
1655 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1657 be_queue_free(adapter, cq);
1662 static void be_tx_queues_destroy(struct be_adapter *adapter)
1664 struct be_queue_info *q;
1665 struct be_tx_obj *txo;
1668 for_all_tx_queues(adapter, txo, i) {
1671 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1672 be_queue_free(adapter, q);
1676 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1677 be_queue_free(adapter, q);
1680 /* Clear any residual events */
1681 be_eq_clean(adapter, &adapter->tx_eq);
1683 q = &adapter->tx_eq.q;
1685 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1686 be_queue_free(adapter, q);
1689 /* One TX event queue is shared by all TX compl qs */
1690 static int be_tx_queues_create(struct be_adapter *adapter)
1692 struct be_queue_info *eq, *q, *cq;
1693 struct be_tx_obj *txo;
1696 adapter->tx_eq.max_eqd = 0;
1697 adapter->tx_eq.min_eqd = 0;
1698 adapter->tx_eq.cur_eqd = 96;
1699 adapter->tx_eq.enable_aic = false;
1701 eq = &adapter->tx_eq.q;
1702 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1703 sizeof(struct be_eq_entry)))
1706 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1708 adapter->tx_eq.eq_idx = adapter->eq_next_idx++;
1710 for_all_tx_queues(adapter, txo, i) {
1712 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1713 sizeof(struct be_eth_tx_compl)))
1716 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1720 if (be_queue_alloc(adapter, q, TX_Q_LEN,
1721 sizeof(struct be_eth_wrb)))
1724 if (be_cmd_txq_create(adapter, q, cq))
1730 be_tx_queues_destroy(adapter);
1734 static void be_rx_queues_destroy(struct be_adapter *adapter)
1736 struct be_queue_info *q;
1737 struct be_rx_obj *rxo;
1740 for_all_rx_queues(adapter, rxo, i) {
1741 be_queue_free(adapter, &rxo->q);
1745 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1746 be_queue_free(adapter, q);
1750 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1751 be_queue_free(adapter, q);
1755 static u32 be_num_rxqs_want(struct be_adapter *adapter)
1757 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
1758 !adapter->sriov_enabled && !(adapter->function_mode & 0x400)) {
1759 return 1 + MAX_RSS_QS; /* one default non-RSS queue */
1761 dev_warn(&adapter->pdev->dev,
1762 "No support for multiple RX queues\n");
1767 static int be_rx_queues_create(struct be_adapter *adapter)
1769 struct be_queue_info *eq, *q, *cq;
1770 struct be_rx_obj *rxo;
1773 adapter->num_rx_qs = min(be_num_rxqs_want(adapter),
1774 msix_enabled(adapter) ?
1775 adapter->num_msix_vec - 1 : 1);
1776 if (adapter->num_rx_qs != MAX_RX_QS)
1777 dev_warn(&adapter->pdev->dev,
1778 "Can create only %d RX queues", adapter->num_rx_qs);
1780 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1781 for_all_rx_queues(adapter, rxo, i) {
1782 rxo->adapter = adapter;
1783 rxo->rx_eq.max_eqd = BE_MAX_EQD;
1784 rxo->rx_eq.enable_aic = true;
1788 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1789 sizeof(struct be_eq_entry));
1793 rc = be_cmd_eq_create(adapter, eq, rxo->rx_eq.cur_eqd);
1797 rxo->rx_eq.eq_idx = adapter->eq_next_idx++;
1801 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1802 sizeof(struct be_eth_rx_compl));
1806 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1810 /* Rx Q - will be created in be_open() */
1812 rc = be_queue_alloc(adapter, q, RX_Q_LEN,
1813 sizeof(struct be_eth_rx_d));
1821 be_rx_queues_destroy(adapter);
1825 static bool event_peek(struct be_eq_obj *eq_obj)
1827 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1834 static irqreturn_t be_intx(int irq, void *dev)
1836 struct be_adapter *adapter = dev;
1837 struct be_rx_obj *rxo;
1838 int isr, i, tx = 0 , rx = 0;
1840 if (lancer_chip(adapter)) {
1841 if (event_peek(&adapter->tx_eq))
1842 tx = event_handle(adapter, &adapter->tx_eq, false);
1843 for_all_rx_queues(adapter, rxo, i) {
1844 if (event_peek(&rxo->rx_eq))
1845 rx |= event_handle(adapter, &rxo->rx_eq, true);
1852 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1853 (adapter->tx_eq.q.id / 8) * CEV_ISR_SIZE);
1857 if ((1 << adapter->tx_eq.eq_idx & isr))
1858 event_handle(adapter, &adapter->tx_eq, false);
1860 for_all_rx_queues(adapter, rxo, i) {
1861 if ((1 << rxo->rx_eq.eq_idx & isr))
1862 event_handle(adapter, &rxo->rx_eq, true);
1869 static irqreturn_t be_msix_rx(int irq, void *dev)
1871 struct be_rx_obj *rxo = dev;
1872 struct be_adapter *adapter = rxo->adapter;
1874 event_handle(adapter, &rxo->rx_eq, true);
1879 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1881 struct be_adapter *adapter = dev;
1883 event_handle(adapter, &adapter->tx_eq, false);
1888 static inline bool do_gro(struct be_rx_compl_info *rxcp)
1890 return (rxcp->tcpf && !rxcp->err) ? true : false;
1893 static int be_poll_rx(struct napi_struct *napi, int budget)
1895 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1896 struct be_rx_obj *rxo = container_of(rx_eq, struct be_rx_obj, rx_eq);
1897 struct be_adapter *adapter = rxo->adapter;
1898 struct be_queue_info *rx_cq = &rxo->cq;
1899 struct be_rx_compl_info *rxcp;
1902 rxo->stats.rx_polls++;
1903 for (work_done = 0; work_done < budget; work_done++) {
1904 rxcp = be_rx_compl_get(rxo);
1908 /* Ignore flush completions */
1909 if (rxcp->num_rcvd && rxcp->pkt_size) {
1911 be_rx_compl_process_gro(adapter, rxo, rxcp);
1913 be_rx_compl_process(adapter, rxo, rxcp);
1914 } else if (rxcp->pkt_size == 0) {
1915 be_rx_compl_discard(adapter, rxo, rxcp);
1918 be_rx_stats_update(rxo, rxcp);
1921 /* Refill the queue */
1922 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
1923 be_post_rx_frags(rxo, GFP_ATOMIC);
1926 if (work_done < budget) {
1927 napi_complete(napi);
1928 be_cq_notify(adapter, rx_cq->id, true, work_done);
1930 /* More to be consumed; continue with interrupts disabled */
1931 be_cq_notify(adapter, rx_cq->id, false, work_done);
1936 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1937 * For TX/MCC we don't honour budget; consume everything
1939 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1941 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1942 struct be_adapter *adapter =
1943 container_of(tx_eq, struct be_adapter, tx_eq);
1944 struct be_tx_obj *txo;
1945 struct be_eth_tx_compl *txcp;
1946 int tx_compl, mcc_compl, status = 0;
1950 for_all_tx_queues(adapter, txo, i) {
1953 while ((txcp = be_tx_compl_get(&txo->cq))) {
1954 num_wrbs += be_tx_compl_process(adapter, txo,
1955 AMAP_GET_BITS(struct amap_eth_tx_compl,
1960 be_cq_notify(adapter, txo->cq.id, true, tx_compl);
1962 atomic_sub(num_wrbs, &txo->q.used);
1964 /* As Tx wrbs have been freed up, wake up netdev queue
1965 * if it was stopped due to lack of tx wrbs. */
1966 if (__netif_subqueue_stopped(adapter->netdev, i) &&
1967 atomic_read(&txo->q.used) < txo->q.len / 2) {
1968 netif_wake_subqueue(adapter->netdev, i);
1971 adapter->drv_stats.be_tx_events++;
1972 txo->stats.be_tx_compl += tx_compl;
1976 mcc_compl = be_process_mcc(adapter, &status);
1979 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1980 be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl);
1983 napi_complete(napi);
1985 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1989 void be_detect_dump_ue(struct be_adapter *adapter)
1991 u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask;
1994 pci_read_config_dword(adapter->pdev,
1995 PCICFG_UE_STATUS_LOW, &ue_status_lo);
1996 pci_read_config_dword(adapter->pdev,
1997 PCICFG_UE_STATUS_HIGH, &ue_status_hi);
1998 pci_read_config_dword(adapter->pdev,
1999 PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask);
2000 pci_read_config_dword(adapter->pdev,
2001 PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask);
2003 ue_status_lo = (ue_status_lo & (~ue_status_lo_mask));
2004 ue_status_hi = (ue_status_hi & (~ue_status_hi_mask));
2006 if (ue_status_lo || ue_status_hi) {
2007 adapter->ue_detected = true;
2008 adapter->eeh_err = true;
2009 dev_err(&adapter->pdev->dev, "UE Detected!!\n");
2013 for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) {
2014 if (ue_status_lo & 1)
2015 dev_err(&adapter->pdev->dev,
2016 "UE: %s bit set\n", ue_status_low_desc[i]);
2020 for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) {
2021 if (ue_status_hi & 1)
2022 dev_err(&adapter->pdev->dev,
2023 "UE: %s bit set\n", ue_status_hi_desc[i]);
2029 static void be_worker(struct work_struct *work)
2031 struct be_adapter *adapter =
2032 container_of(work, struct be_adapter, work.work);
2033 struct be_rx_obj *rxo;
2034 struct be_tx_obj *txo;
2037 if (!adapter->ue_detected && !lancer_chip(adapter))
2038 be_detect_dump_ue(adapter);
2040 /* when interrupts are not yet enabled, just reap any pending
2041 * mcc completions */
2042 if (!netif_running(adapter->netdev)) {
2043 int mcc_compl, status = 0;
2045 mcc_compl = be_process_mcc(adapter, &status);
2048 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
2049 be_cq_notify(adapter, mcc_obj->cq.id, false, mcc_compl);
2055 if (!adapter->stats_cmd_sent) {
2056 if (lancer_chip(adapter))
2057 lancer_cmd_get_pport_stats(adapter,
2058 &adapter->stats_cmd);
2060 be_cmd_get_stats(adapter, &adapter->stats_cmd);
2063 for_all_tx_queues(adapter, txo, i)
2064 be_tx_rate_update(txo);
2066 for_all_rx_queues(adapter, rxo, i) {
2067 be_rx_rate_update(rxo);
2068 be_rx_eqd_update(adapter, rxo);
2070 if (rxo->rx_post_starved) {
2071 rxo->rx_post_starved = false;
2072 be_post_rx_frags(rxo, GFP_KERNEL);
2077 adapter->work_counter++;
2078 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2081 static void be_msix_disable(struct be_adapter *adapter)
2083 if (msix_enabled(adapter)) {
2084 pci_disable_msix(adapter->pdev);
2085 adapter->num_msix_vec = 0;
2089 static void be_msix_enable(struct be_adapter *adapter)
2091 #define BE_MIN_MSIX_VECTORS (1 + 1) /* Rx + Tx */
2092 int i, status, num_vec;
2094 num_vec = be_num_rxqs_want(adapter) + 1;
2096 for (i = 0; i < num_vec; i++)
2097 adapter->msix_entries[i].entry = i;
2099 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2102 } else if (status >= BE_MIN_MSIX_VECTORS) {
2104 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2110 adapter->num_msix_vec = num_vec;
2114 static void be_sriov_enable(struct be_adapter *adapter)
2116 be_check_sriov_fn_type(adapter);
2117 #ifdef CONFIG_PCI_IOV
2118 if (be_physfn(adapter) && num_vfs) {
2122 pos = pci_find_ext_capability(adapter->pdev,
2123 PCI_EXT_CAP_ID_SRIOV);
2124 pci_read_config_word(adapter->pdev,
2125 pos + PCI_SRIOV_TOTAL_VF, &nvfs);
2127 if (num_vfs > nvfs) {
2128 dev_info(&adapter->pdev->dev,
2129 "Device supports %d VFs and not %d\n",
2134 status = pci_enable_sriov(adapter->pdev, num_vfs);
2135 adapter->sriov_enabled = status ? false : true;
2140 static void be_sriov_disable(struct be_adapter *adapter)
2142 #ifdef CONFIG_PCI_IOV
2143 if (adapter->sriov_enabled) {
2144 pci_disable_sriov(adapter->pdev);
2145 adapter->sriov_enabled = false;
2150 static inline int be_msix_vec_get(struct be_adapter *adapter,
2151 struct be_eq_obj *eq_obj)
2153 return adapter->msix_entries[eq_obj->eq_idx].vector;
2156 static int be_request_irq(struct be_adapter *adapter,
2157 struct be_eq_obj *eq_obj,
2158 void *handler, char *desc, void *context)
2160 struct net_device *netdev = adapter->netdev;
2163 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
2164 vec = be_msix_vec_get(adapter, eq_obj);
2165 return request_irq(vec, handler, 0, eq_obj->desc, context);
2168 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj,
2171 int vec = be_msix_vec_get(adapter, eq_obj);
2172 free_irq(vec, context);
2175 static int be_msix_register(struct be_adapter *adapter)
2177 struct be_rx_obj *rxo;
2181 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx",
2186 for_all_rx_queues(adapter, rxo, i) {
2187 sprintf(qname, "rxq%d", i);
2188 status = be_request_irq(adapter, &rxo->rx_eq, be_msix_rx,
2197 be_free_irq(adapter, &adapter->tx_eq, adapter);
2199 for (i--, rxo = &adapter->rx_obj[i]; i >= 0; i--, rxo--)
2200 be_free_irq(adapter, &rxo->rx_eq, rxo);
2203 dev_warn(&adapter->pdev->dev,
2204 "MSIX Request IRQ failed - err %d\n", status);
2205 be_msix_disable(adapter);
2209 static int be_irq_register(struct be_adapter *adapter)
2211 struct net_device *netdev = adapter->netdev;
2214 if (msix_enabled(adapter)) {
2215 status = be_msix_register(adapter);
2218 /* INTx is not supported for VF */
2219 if (!be_physfn(adapter))
2224 netdev->irq = adapter->pdev->irq;
2225 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2228 dev_err(&adapter->pdev->dev,
2229 "INTx request IRQ failed - err %d\n", status);
2233 adapter->isr_registered = true;
2237 static void be_irq_unregister(struct be_adapter *adapter)
2239 struct net_device *netdev = adapter->netdev;
2240 struct be_rx_obj *rxo;
2243 if (!adapter->isr_registered)
2247 if (!msix_enabled(adapter)) {
2248 free_irq(netdev->irq, adapter);
2253 be_free_irq(adapter, &adapter->tx_eq, adapter);
2255 for_all_rx_queues(adapter, rxo, i)
2256 be_free_irq(adapter, &rxo->rx_eq, rxo);
2259 adapter->isr_registered = false;
2262 static void be_rx_queues_clear(struct be_adapter *adapter)
2264 struct be_queue_info *q;
2265 struct be_rx_obj *rxo;
2268 for_all_rx_queues(adapter, rxo, i) {
2271 be_cmd_rxq_destroy(adapter, q);
2272 /* After the rxq is invalidated, wait for a grace time
2273 * of 1ms for all dma to end and the flush compl to
2277 be_rx_q_clean(adapter, rxo);
2280 /* Clear any residual events */
2283 be_eq_clean(adapter, &rxo->rx_eq);
2287 static int be_close(struct net_device *netdev)
2289 struct be_adapter *adapter = netdev_priv(netdev);
2290 struct be_rx_obj *rxo;
2291 struct be_tx_obj *txo;
2292 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2295 be_async_mcc_disable(adapter);
2297 netif_carrier_off(netdev);
2298 adapter->link_up = false;
2300 if (!lancer_chip(adapter))
2301 be_intr_set(adapter, false);
2303 for_all_rx_queues(adapter, rxo, i)
2304 napi_disable(&rxo->rx_eq.napi);
2306 napi_disable(&tx_eq->napi);
2308 if (lancer_chip(adapter)) {
2309 be_cq_notify(adapter, adapter->mcc_obj.cq.id, false, 0);
2310 for_all_rx_queues(adapter, rxo, i)
2311 be_cq_notify(adapter, rxo->cq.id, false, 0);
2312 for_all_tx_queues(adapter, txo, i)
2313 be_cq_notify(adapter, txo->cq.id, false, 0);
2316 if (msix_enabled(adapter)) {
2317 vec = be_msix_vec_get(adapter, tx_eq);
2318 synchronize_irq(vec);
2320 for_all_rx_queues(adapter, rxo, i) {
2321 vec = be_msix_vec_get(adapter, &rxo->rx_eq);
2322 synchronize_irq(vec);
2325 synchronize_irq(netdev->irq);
2327 be_irq_unregister(adapter);
2329 /* Wait for all pending tx completions to arrive so that
2330 * all tx skbs are freed.
2332 for_all_tx_queues(adapter, txo, i)
2333 be_tx_compl_clean(adapter, txo);
2335 be_rx_queues_clear(adapter);
2339 static int be_rx_queues_setup(struct be_adapter *adapter)
2341 struct be_rx_obj *rxo;
2343 u8 rsstable[MAX_RSS_QS];
2345 for_all_rx_queues(adapter, rxo, i) {
2346 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2347 rx_frag_size, BE_MAX_JUMBO_FRAME_SIZE,
2349 (i > 0) ? 1 : 0/* rss enable */, &rxo->rss_id);
2354 if (be_multi_rxq(adapter)) {
2355 for_all_rss_queues(adapter, rxo, i)
2356 rsstable[i] = rxo->rss_id;
2358 rc = be_cmd_rss_config(adapter, rsstable,
2359 adapter->num_rx_qs - 1);
2364 /* First time posting */
2365 for_all_rx_queues(adapter, rxo, i) {
2366 be_post_rx_frags(rxo, GFP_KERNEL);
2367 napi_enable(&rxo->rx_eq.napi);
2372 static int be_open(struct net_device *netdev)
2374 struct be_adapter *adapter = netdev_priv(netdev);
2375 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2376 struct be_rx_obj *rxo;
2382 status = be_rx_queues_setup(adapter);
2386 napi_enable(&tx_eq->napi);
2388 be_irq_register(adapter);
2390 if (!lancer_chip(adapter))
2391 be_intr_set(adapter, true);
2393 /* The evt queues are created in unarmed state; arm them */
2394 for_all_rx_queues(adapter, rxo, i) {
2395 be_eq_notify(adapter, rxo->rx_eq.q.id, true, false, 0);
2396 be_cq_notify(adapter, rxo->cq.id, true, 0);
2398 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
2400 /* Now that interrupts are on we can process async mcc */
2401 be_async_mcc_enable(adapter);
2403 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
2407 be_link_status_update(adapter, link_up);
2409 if (be_physfn(adapter)) {
2410 status = be_vid_config(adapter, false, 0);
2414 status = be_cmd_set_flow_control(adapter,
2415 adapter->tx_fc, adapter->rx_fc);
2422 be_close(adapter->netdev);
2426 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2428 struct be_dma_mem cmd;
2432 memset(mac, 0, ETH_ALEN);
2434 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2435 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2439 memset(cmd.va, 0, cmd.size);
2442 status = pci_write_config_dword(adapter->pdev,
2443 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2445 dev_err(&adapter->pdev->dev,
2446 "Could not enable Wake-on-lan\n");
2447 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2451 status = be_cmd_enable_magic_wol(adapter,
2452 adapter->netdev->dev_addr, &cmd);
2453 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2454 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2456 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2457 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2458 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2461 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2466 * Generate a seed MAC address from the PF MAC Address using jhash.
2467 * MAC Address for VFs are assigned incrementally starting from the seed.
2468 * These addresses are programmed in the ASIC by the PF and the VF driver
2469 * queries for the MAC address during its probe.
2471 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2477 be_vf_eth_addr_generate(adapter, mac);
2479 for (vf = 0; vf < num_vfs; vf++) {
2480 status = be_cmd_pmac_add(adapter, mac,
2481 adapter->vf_cfg[vf].vf_if_handle,
2482 &adapter->vf_cfg[vf].vf_pmac_id,
2485 dev_err(&adapter->pdev->dev,
2486 "Mac address add failed for VF %d\n", vf);
2488 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
2495 static inline void be_vf_eth_addr_rem(struct be_adapter *adapter)
2499 for (vf = 0; vf < num_vfs; vf++) {
2500 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
2501 be_cmd_pmac_del(adapter,
2502 adapter->vf_cfg[vf].vf_if_handle,
2503 adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
2507 static int be_setup(struct be_adapter *adapter)
2509 struct net_device *netdev = adapter->netdev;
2510 u32 cap_flags, en_flags, vf = 0;
2514 be_cmd_req_native_mode(adapter);
2516 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED |
2517 BE_IF_FLAGS_BROADCAST |
2518 BE_IF_FLAGS_MULTICAST;
2520 if (be_physfn(adapter)) {
2521 cap_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS |
2522 BE_IF_FLAGS_PROMISCUOUS |
2523 BE_IF_FLAGS_PASS_L3L4_ERRORS;
2524 en_flags |= BE_IF_FLAGS_PASS_L3L4_ERRORS;
2526 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2527 cap_flags |= BE_IF_FLAGS_RSS;
2528 en_flags |= BE_IF_FLAGS_RSS;
2532 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2533 netdev->dev_addr, false/* pmac_invalid */,
2534 &adapter->if_handle, &adapter->pmac_id, 0);
2538 if (be_physfn(adapter)) {
2539 if (adapter->sriov_enabled) {
2540 while (vf < num_vfs) {
2541 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED |
2542 BE_IF_FLAGS_BROADCAST;
2543 status = be_cmd_if_create(adapter, cap_flags,
2544 en_flags, mac, true,
2545 &adapter->vf_cfg[vf].vf_if_handle,
2548 dev_err(&adapter->pdev->dev,
2549 "Interface Create failed for VF %d\n",
2553 adapter->vf_cfg[vf].vf_pmac_id =
2559 status = be_cmd_mac_addr_query(adapter, mac,
2560 MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
2562 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2563 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2567 status = be_tx_queues_create(adapter);
2571 status = be_rx_queues_create(adapter);
2575 /* Allow all priorities by default. A GRP5 evt may modify this */
2576 adapter->vlan_prio_bmap = 0xff;
2578 status = be_mcc_queues_create(adapter);
2582 adapter->link_speed = -1;
2587 be_rx_queues_destroy(adapter);
2589 be_tx_queues_destroy(adapter);
2591 if (be_physfn(adapter) && adapter->sriov_enabled)
2592 for (vf = 0; vf < num_vfs; vf++)
2593 if (adapter->vf_cfg[vf].vf_if_handle)
2594 be_cmd_if_destroy(adapter,
2595 adapter->vf_cfg[vf].vf_if_handle,
2597 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2602 static int be_clear(struct be_adapter *adapter)
2606 if (be_physfn(adapter) && adapter->sriov_enabled)
2607 be_vf_eth_addr_rem(adapter);
2609 be_mcc_queues_destroy(adapter);
2610 be_rx_queues_destroy(adapter);
2611 be_tx_queues_destroy(adapter);
2612 adapter->eq_next_idx = 0;
2614 if (be_physfn(adapter) && adapter->sriov_enabled)
2615 for (vf = 0; vf < num_vfs; vf++)
2616 if (adapter->vf_cfg[vf].vf_if_handle)
2617 be_cmd_if_destroy(adapter,
2618 adapter->vf_cfg[vf].vf_if_handle,
2621 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2623 adapter->be3_native = 0;
2625 /* tell fw we're done with firing cmds */
2626 be_cmd_fw_clean(adapter);
2631 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
2632 static bool be_flash_redboot(struct be_adapter *adapter,
2633 const u8 *p, u32 img_start, int image_size,
2640 crc_offset = hdr_size + img_start + image_size - 4;
2644 status = be_cmd_get_flash_crc(adapter, flashed_crc,
2647 dev_err(&adapter->pdev->dev,
2648 "could not get crc from flash, not flashing redboot\n");
2652 /*update redboot only if crc does not match*/
2653 if (!memcmp(flashed_crc, p, 4))
2659 static int be_flash_data(struct be_adapter *adapter,
2660 const struct firmware *fw,
2661 struct be_dma_mem *flash_cmd, int num_of_images)
2664 int status = 0, i, filehdr_size = 0;
2665 u32 total_bytes = 0, flash_op;
2667 const u8 *p = fw->data;
2668 struct be_cmd_write_flashrom *req = flash_cmd->va;
2669 const struct flash_comp *pflashcomp;
2672 static const struct flash_comp gen3_flash_types[9] = {
2673 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
2674 FLASH_IMAGE_MAX_SIZE_g3},
2675 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
2676 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
2677 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
2678 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2679 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
2680 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2681 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
2682 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2683 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
2684 FLASH_IMAGE_MAX_SIZE_g3},
2685 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
2686 FLASH_IMAGE_MAX_SIZE_g3},
2687 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
2688 FLASH_IMAGE_MAX_SIZE_g3},
2689 { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW,
2690 FLASH_NCSI_IMAGE_MAX_SIZE_g3}
2692 static const struct flash_comp gen2_flash_types[8] = {
2693 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
2694 FLASH_IMAGE_MAX_SIZE_g2},
2695 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
2696 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
2697 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
2698 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2699 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
2700 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2701 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
2702 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2703 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
2704 FLASH_IMAGE_MAX_SIZE_g2},
2705 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
2706 FLASH_IMAGE_MAX_SIZE_g2},
2707 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
2708 FLASH_IMAGE_MAX_SIZE_g2}
2711 if (adapter->generation == BE_GEN3) {
2712 pflashcomp = gen3_flash_types;
2713 filehdr_size = sizeof(struct flash_file_hdr_g3);
2714 num_comp = ARRAY_SIZE(gen3_flash_types);
2716 pflashcomp = gen2_flash_types;
2717 filehdr_size = sizeof(struct flash_file_hdr_g2);
2718 num_comp = ARRAY_SIZE(gen2_flash_types);
2720 for (i = 0; i < num_comp; i++) {
2721 if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) &&
2722 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
2724 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
2725 (!be_flash_redboot(adapter, fw->data,
2726 pflashcomp[i].offset, pflashcomp[i].size, filehdr_size +
2727 (num_of_images * sizeof(struct image_hdr)))))
2730 p += filehdr_size + pflashcomp[i].offset
2731 + (num_of_images * sizeof(struct image_hdr));
2732 if (p + pflashcomp[i].size > fw->data + fw->size)
2734 total_bytes = pflashcomp[i].size;
2735 while (total_bytes) {
2736 if (total_bytes > 32*1024)
2737 num_bytes = 32*1024;
2739 num_bytes = total_bytes;
2740 total_bytes -= num_bytes;
2743 flash_op = FLASHROM_OPER_FLASH;
2745 flash_op = FLASHROM_OPER_SAVE;
2746 memcpy(req->params.data_buf, p, num_bytes);
2748 status = be_cmd_write_flashrom(adapter, flash_cmd,
2749 pflashcomp[i].optype, flash_op, num_bytes);
2751 dev_err(&adapter->pdev->dev,
2752 "cmd to write to flash rom failed.\n");
2760 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
2764 if (fhdr->build[0] == '3')
2766 else if (fhdr->build[0] == '2')
2772 static int lancer_fw_download(struct be_adapter *adapter,
2773 const struct firmware *fw)
2775 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
2776 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
2777 struct be_dma_mem flash_cmd;
2778 const u8 *data_ptr = NULL;
2779 u8 *dest_image_ptr = NULL;
2780 size_t image_size = 0;
2782 u32 data_written = 0;
2787 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
2788 dev_err(&adapter->pdev->dev,
2789 "FW Image not properly aligned. "
2790 "Length must be 4 byte aligned.\n");
2792 goto lancer_fw_exit;
2795 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
2796 + LANCER_FW_DOWNLOAD_CHUNK;
2797 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2798 &flash_cmd.dma, GFP_KERNEL);
2799 if (!flash_cmd.va) {
2801 dev_err(&adapter->pdev->dev,
2802 "Memory allocation failure while flashing\n");
2803 goto lancer_fw_exit;
2806 dest_image_ptr = flash_cmd.va +
2807 sizeof(struct lancer_cmd_req_write_object);
2808 image_size = fw->size;
2809 data_ptr = fw->data;
2811 while (image_size) {
2812 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
2814 /* Copy the image chunk content. */
2815 memcpy(dest_image_ptr, data_ptr, chunk_size);
2817 status = lancer_cmd_write_object(adapter, &flash_cmd,
2818 chunk_size, offset, LANCER_FW_DOWNLOAD_LOCATION,
2819 &data_written, &add_status);
2824 offset += data_written;
2825 data_ptr += data_written;
2826 image_size -= data_written;
2830 /* Commit the FW written */
2831 status = lancer_cmd_write_object(adapter, &flash_cmd,
2832 0, offset, LANCER_FW_DOWNLOAD_LOCATION,
2833 &data_written, &add_status);
2836 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
2839 dev_err(&adapter->pdev->dev,
2840 "Firmware load error. "
2841 "Status code: 0x%x Additional Status: 0x%x\n",
2842 status, add_status);
2843 goto lancer_fw_exit;
2846 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2851 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
2853 struct flash_file_hdr_g2 *fhdr;
2854 struct flash_file_hdr_g3 *fhdr3;
2855 struct image_hdr *img_hdr_ptr = NULL;
2856 struct be_dma_mem flash_cmd;
2858 int status = 0, i = 0, num_imgs = 0;
2861 fhdr = (struct flash_file_hdr_g2 *) p;
2863 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
2864 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2865 &flash_cmd.dma, GFP_KERNEL);
2866 if (!flash_cmd.va) {
2868 dev_err(&adapter->pdev->dev,
2869 "Memory allocation failure while flashing\n");
2873 if ((adapter->generation == BE_GEN3) &&
2874 (get_ufigen_type(fhdr) == BE_GEN3)) {
2875 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
2876 num_imgs = le32_to_cpu(fhdr3->num_imgs);
2877 for (i = 0; i < num_imgs; i++) {
2878 img_hdr_ptr = (struct image_hdr *) (fw->data +
2879 (sizeof(struct flash_file_hdr_g3) +
2880 i * sizeof(struct image_hdr)));
2881 if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
2882 status = be_flash_data(adapter, fw, &flash_cmd,
2885 } else if ((adapter->generation == BE_GEN2) &&
2886 (get_ufigen_type(fhdr) == BE_GEN2)) {
2887 status = be_flash_data(adapter, fw, &flash_cmd, 0);
2889 dev_err(&adapter->pdev->dev,
2890 "UFI and Interface are not compatible for flashing\n");
2894 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
2897 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2901 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2907 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
2909 const struct firmware *fw;
2912 if (!netif_running(adapter->netdev)) {
2913 dev_err(&adapter->pdev->dev,
2914 "Firmware load not allowed (interface is down)\n");
2918 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
2922 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
2924 if (lancer_chip(adapter))
2925 status = lancer_fw_download(adapter, fw);
2927 status = be_fw_download(adapter, fw);
2930 release_firmware(fw);
2934 static struct net_device_ops be_netdev_ops = {
2935 .ndo_open = be_open,
2936 .ndo_stop = be_close,
2937 .ndo_start_xmit = be_xmit,
2938 .ndo_set_rx_mode = be_set_multicast_list,
2939 .ndo_set_mac_address = be_mac_addr_set,
2940 .ndo_change_mtu = be_change_mtu,
2941 .ndo_validate_addr = eth_validate_addr,
2942 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2943 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2944 .ndo_set_vf_mac = be_set_vf_mac,
2945 .ndo_set_vf_vlan = be_set_vf_vlan,
2946 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
2947 .ndo_get_vf_config = be_get_vf_config
2950 static void be_netdev_init(struct net_device *netdev)
2952 struct be_adapter *adapter = netdev_priv(netdev);
2953 struct be_rx_obj *rxo;
2956 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
2957 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
2959 if (be_multi_rxq(adapter))
2960 netdev->hw_features |= NETIF_F_RXHASH;
2962 netdev->features |= netdev->hw_features |
2963 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
2965 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
2966 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
2968 netdev->flags |= IFF_MULTICAST;
2970 /* Default settings for Rx and Tx flow control */
2971 adapter->rx_fc = true;
2972 adapter->tx_fc = true;
2974 netif_set_gso_max_size(netdev, 65535);
2976 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2978 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2980 for_all_rx_queues(adapter, rxo, i)
2981 netif_napi_add(netdev, &rxo->rx_eq.napi, be_poll_rx,
2984 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2988 static void be_unmap_pci_bars(struct be_adapter *adapter)
2991 iounmap(adapter->csr);
2993 iounmap(adapter->db);
2994 if (adapter->pcicfg && be_physfn(adapter))
2995 iounmap(adapter->pcicfg);
2998 static int be_map_pci_bars(struct be_adapter *adapter)
3001 int pcicfg_reg, db_reg;
3003 if (lancer_chip(adapter)) {
3004 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 0),
3005 pci_resource_len(adapter->pdev, 0));
3012 if (be_physfn(adapter)) {
3013 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3014 pci_resource_len(adapter->pdev, 2));
3017 adapter->csr = addr;
3020 if (adapter->generation == BE_GEN2) {
3025 if (be_physfn(adapter))
3030 addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3031 pci_resource_len(adapter->pdev, db_reg));
3036 if (be_physfn(adapter)) {
3037 addr = ioremap_nocache(
3038 pci_resource_start(adapter->pdev, pcicfg_reg),
3039 pci_resource_len(adapter->pdev, pcicfg_reg));
3042 adapter->pcicfg = addr;
3044 adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
3048 be_unmap_pci_bars(adapter);
3053 static void be_ctrl_cleanup(struct be_adapter *adapter)
3055 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3057 be_unmap_pci_bars(adapter);
3060 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3063 mem = &adapter->mc_cmd_mem;
3065 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3069 static int be_ctrl_init(struct be_adapter *adapter)
3071 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3072 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3073 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
3076 status = be_map_pci_bars(adapter);
3080 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3081 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3082 mbox_mem_alloc->size,
3083 &mbox_mem_alloc->dma,
3085 if (!mbox_mem_alloc->va) {
3087 goto unmap_pci_bars;
3090 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3091 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3092 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3093 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3095 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
3096 mc_cmd_mem->va = dma_alloc_coherent(&adapter->pdev->dev,
3097 mc_cmd_mem->size, &mc_cmd_mem->dma,
3099 if (mc_cmd_mem->va == NULL) {
3103 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
3105 mutex_init(&adapter->mbox_lock);
3106 spin_lock_init(&adapter->mcc_lock);
3107 spin_lock_init(&adapter->mcc_cq_lock);
3109 init_completion(&adapter->flash_compl);
3110 pci_save_state(adapter->pdev);
3114 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3115 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3118 be_unmap_pci_bars(adapter);
3124 static void be_stats_cleanup(struct be_adapter *adapter)
3126 struct be_dma_mem *cmd = &adapter->stats_cmd;
3129 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3133 static int be_stats_init(struct be_adapter *adapter)
3135 struct be_dma_mem *cmd = &adapter->stats_cmd;
3137 if (adapter->generation == BE_GEN2) {
3138 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3140 if (lancer_chip(adapter))
3141 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3143 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3145 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3147 if (cmd->va == NULL)
3149 memset(cmd->va, 0, cmd->size);
3153 static void __devexit be_remove(struct pci_dev *pdev)
3155 struct be_adapter *adapter = pci_get_drvdata(pdev);
3160 cancel_delayed_work_sync(&adapter->work);
3162 unregister_netdev(adapter->netdev);
3166 be_stats_cleanup(adapter);
3168 be_ctrl_cleanup(adapter);
3170 kfree(adapter->vf_cfg);
3171 be_sriov_disable(adapter);
3173 be_msix_disable(adapter);
3175 pci_set_drvdata(pdev, NULL);
3176 pci_release_regions(pdev);
3177 pci_disable_device(pdev);
3179 free_netdev(adapter->netdev);
3182 static int be_get_config(struct be_adapter *adapter)
3187 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
3191 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3192 &adapter->function_mode, &adapter->function_caps);
3196 memset(mac, 0, ETH_ALEN);
3198 /* A default permanent address is given to each VF for Lancer*/
3199 if (be_physfn(adapter) || lancer_chip(adapter)) {
3200 status = be_cmd_mac_addr_query(adapter, mac,
3201 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
3206 if (!is_valid_ether_addr(mac))
3207 return -EADDRNOTAVAIL;
3209 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3210 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3213 if (adapter->function_mode & 0x400)
3214 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
3216 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3218 status = be_cmd_get_cntl_attributes(adapter);
3222 if ((num_vfs && adapter->sriov_enabled) ||
3223 (adapter->function_mode & 0x400) ||
3224 lancer_chip(adapter) || !be_physfn(adapter)) {
3225 adapter->num_tx_qs = 1;
3226 netif_set_real_num_tx_queues(adapter->netdev,
3227 adapter->num_tx_qs);
3229 adapter->num_tx_qs = MAX_TX_QS;
3235 static int be_dev_family_check(struct be_adapter *adapter)
3237 struct pci_dev *pdev = adapter->pdev;
3238 u32 sli_intf = 0, if_type;
3240 switch (pdev->device) {
3243 adapter->generation = BE_GEN2;
3247 adapter->generation = BE_GEN3;
3251 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3252 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3253 SLI_INTF_IF_TYPE_SHIFT;
3255 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3257 dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3260 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3261 SLI_INTF_FAMILY_SHIFT);
3262 adapter->generation = BE_GEN3;
3265 adapter->generation = 0;
3270 static int lancer_wait_ready(struct be_adapter *adapter)
3272 #define SLIPORT_READY_TIMEOUT 500
3276 for (i = 0; i < SLIPORT_READY_TIMEOUT; i++) {
3277 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3278 if (sliport_status & SLIPORT_STATUS_RDY_MASK)
3284 if (i == SLIPORT_READY_TIMEOUT)
3290 static int lancer_test_and_set_rdy_state(struct be_adapter *adapter)
3293 u32 sliport_status, err, reset_needed;
3294 status = lancer_wait_ready(adapter);
3296 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3297 err = sliport_status & SLIPORT_STATUS_ERR_MASK;
3298 reset_needed = sliport_status & SLIPORT_STATUS_RN_MASK;
3299 if (err && reset_needed) {
3300 iowrite32(SLI_PORT_CONTROL_IP_MASK,
3301 adapter->db + SLIPORT_CONTROL_OFFSET);
3303 /* check adapter has corrected the error */
3304 status = lancer_wait_ready(adapter);
3305 sliport_status = ioread32(adapter->db +
3306 SLIPORT_STATUS_OFFSET);
3307 sliport_status &= (SLIPORT_STATUS_ERR_MASK |
3308 SLIPORT_STATUS_RN_MASK);
3309 if (status || sliport_status)
3311 } else if (err || reset_needed) {
3318 static int __devinit be_probe(struct pci_dev *pdev,
3319 const struct pci_device_id *pdev_id)
3322 struct be_adapter *adapter;
3323 struct net_device *netdev;
3325 status = pci_enable_device(pdev);
3329 status = pci_request_regions(pdev, DRV_NAME);
3332 pci_set_master(pdev);
3334 netdev = alloc_etherdev_mq(sizeof(struct be_adapter), MAX_TX_QS);
3335 if (netdev == NULL) {
3339 adapter = netdev_priv(netdev);
3340 adapter->pdev = pdev;
3341 pci_set_drvdata(pdev, adapter);
3343 status = be_dev_family_check(adapter);
3347 adapter->netdev = netdev;
3348 SET_NETDEV_DEV(netdev, &pdev->dev);
3350 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3352 netdev->features |= NETIF_F_HIGHDMA;
3354 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3356 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3361 be_sriov_enable(adapter);
3362 if (adapter->sriov_enabled) {
3363 adapter->vf_cfg = kcalloc(num_vfs,
3364 sizeof(struct be_vf_cfg), GFP_KERNEL);
3366 if (!adapter->vf_cfg)
3370 status = be_ctrl_init(adapter);
3374 if (lancer_chip(adapter)) {
3375 status = lancer_test_and_set_rdy_state(adapter);
3377 dev_err(&pdev->dev, "Adapter in non recoverable error\n");
3382 /* sync up with fw's ready state */
3383 if (be_physfn(adapter)) {
3384 status = be_cmd_POST(adapter);
3389 /* tell fw we're ready to fire cmds */
3390 status = be_cmd_fw_init(adapter);
3394 status = be_cmd_reset_function(adapter);
3398 status = be_stats_init(adapter);
3402 status = be_get_config(adapter);
3406 /* The INTR bit may be set in the card when probed by a kdump kernel
3409 if (!lancer_chip(adapter))
3410 be_intr_set(adapter, false);
3412 be_msix_enable(adapter);
3414 INIT_DELAYED_WORK(&adapter->work, be_worker);
3416 status = be_setup(adapter);
3420 be_netdev_init(netdev);
3421 status = register_netdev(netdev);
3424 netif_carrier_off(netdev);
3426 if (be_physfn(adapter) && adapter->sriov_enabled) {
3431 if (!lancer_chip(adapter)) {
3432 status = be_vf_eth_addr_config(adapter);
3437 for (vf = 0; vf < num_vfs; vf++) {
3438 status = be_cmd_link_status_query(adapter, &link_up,
3439 &mac_speed, &lnk_speed, vf + 1);
3441 adapter->vf_cfg[vf].vf_tx_rate = lnk_speed * 10;
3447 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
3449 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
3453 unregister_netdev(netdev);
3457 be_msix_disable(adapter);
3459 be_stats_cleanup(adapter);
3461 be_ctrl_cleanup(adapter);
3463 kfree(adapter->vf_cfg);
3465 be_sriov_disable(adapter);
3466 free_netdev(netdev);
3467 pci_set_drvdata(pdev, NULL);
3469 pci_release_regions(pdev);
3471 pci_disable_device(pdev);
3473 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3477 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3479 struct be_adapter *adapter = pci_get_drvdata(pdev);
3480 struct net_device *netdev = adapter->netdev;
3482 cancel_delayed_work_sync(&adapter->work);
3484 be_setup_wol(adapter, true);
3486 netif_device_detach(netdev);
3487 if (netif_running(netdev)) {
3492 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
3495 be_msix_disable(adapter);
3496 pci_save_state(pdev);
3497 pci_disable_device(pdev);
3498 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3502 static int be_resume(struct pci_dev *pdev)
3505 struct be_adapter *adapter = pci_get_drvdata(pdev);
3506 struct net_device *netdev = adapter->netdev;
3508 netif_device_detach(netdev);
3510 status = pci_enable_device(pdev);
3514 pci_set_power_state(pdev, 0);
3515 pci_restore_state(pdev);
3517 be_msix_enable(adapter);
3518 /* tell fw we're ready to fire cmds */
3519 status = be_cmd_fw_init(adapter);
3524 if (netif_running(netdev)) {
3529 netif_device_attach(netdev);
3532 be_setup_wol(adapter, false);
3534 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
3539 * An FLR will stop BE from DMAing any data.
3541 static void be_shutdown(struct pci_dev *pdev)
3543 struct be_adapter *adapter = pci_get_drvdata(pdev);
3548 cancel_delayed_work_sync(&adapter->work);
3550 netif_device_detach(adapter->netdev);
3553 be_setup_wol(adapter, true);
3555 be_cmd_reset_function(adapter);
3557 pci_disable_device(pdev);
3560 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
3561 pci_channel_state_t state)
3563 struct be_adapter *adapter = pci_get_drvdata(pdev);
3564 struct net_device *netdev = adapter->netdev;
3566 dev_err(&adapter->pdev->dev, "EEH error detected\n");
3568 adapter->eeh_err = true;
3570 netif_device_detach(netdev);
3572 if (netif_running(netdev)) {
3579 if (state == pci_channel_io_perm_failure)
3580 return PCI_ERS_RESULT_DISCONNECT;
3582 pci_disable_device(pdev);
3584 return PCI_ERS_RESULT_NEED_RESET;
3587 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
3589 struct be_adapter *adapter = pci_get_drvdata(pdev);
3592 dev_info(&adapter->pdev->dev, "EEH reset\n");
3593 adapter->eeh_err = false;
3595 status = pci_enable_device(pdev);
3597 return PCI_ERS_RESULT_DISCONNECT;
3599 pci_set_master(pdev);
3600 pci_set_power_state(pdev, 0);
3601 pci_restore_state(pdev);
3603 /* Check if card is ok and fw is ready */
3604 status = be_cmd_POST(adapter);
3606 return PCI_ERS_RESULT_DISCONNECT;
3608 return PCI_ERS_RESULT_RECOVERED;
3611 static void be_eeh_resume(struct pci_dev *pdev)
3614 struct be_adapter *adapter = pci_get_drvdata(pdev);
3615 struct net_device *netdev = adapter->netdev;
3617 dev_info(&adapter->pdev->dev, "EEH resume\n");
3619 pci_save_state(pdev);
3621 /* tell fw we're ready to fire cmds */
3622 status = be_cmd_fw_init(adapter);
3626 status = be_setup(adapter);
3630 if (netif_running(netdev)) {
3631 status = be_open(netdev);
3635 netif_device_attach(netdev);
3638 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
3641 static struct pci_error_handlers be_eeh_handlers = {
3642 .error_detected = be_eeh_err_detected,
3643 .slot_reset = be_eeh_reset,
3644 .resume = be_eeh_resume,
3647 static struct pci_driver be_driver = {
3649 .id_table = be_dev_ids,
3651 .remove = be_remove,
3652 .suspend = be_suspend,
3653 .resume = be_resume,
3654 .shutdown = be_shutdown,
3655 .err_handler = &be_eeh_handlers
3658 static int __init be_init_module(void)
3660 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
3661 rx_frag_size != 2048) {
3662 printk(KERN_WARNING DRV_NAME
3663 " : Module param rx_frag_size must be 2048/4096/8192."
3665 rx_frag_size = 2048;
3668 return pci_register_driver(&be_driver);
3670 module_init(be_init_module);
3672 static void __exit be_exit_module(void)
3674 pci_unregister_driver(&be_driver);
3676 module_exit(be_exit_module);