2 * Copyright (C) 2005 - 2013 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>
19 #include <linux/module.h>
22 #include <asm/div64.h>
23 #include <linux/aer.h>
24 #include <linux/if_bridge.h>
26 MODULE_VERSION(DRV_VER);
27 MODULE_DEVICE_TABLE(pci, be_dev_ids);
28 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
29 MODULE_AUTHOR("Emulex Corporation");
30 MODULE_LICENSE("GPL");
32 static unsigned int num_vfs;
33 module_param(num_vfs, uint, S_IRUGO);
34 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
36 static ushort rx_frag_size = 2048;
37 module_param(rx_frag_size, ushort, S_IRUGO);
38 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
40 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
41 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
42 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
43 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
44 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
45 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
46 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
48 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
51 MODULE_DEVICE_TABLE(pci, be_dev_ids);
52 /* UE Status Low CSR */
53 static const char * const ue_status_low_desc[] = {
87 /* UE Status High CSR */
88 static const char * const ue_status_hi_desc[] = {
123 /* Is BE in a multi-channel mode */
124 static inline bool be_is_mc(struct be_adapter *adapter) {
125 return (adapter->function_mode & FLEX10_MODE ||
126 adapter->function_mode & VNIC_MODE ||
127 adapter->function_mode & UMC_ENABLED);
130 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
132 struct be_dma_mem *mem = &q->dma_mem;
134 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
140 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
141 u16 len, u16 entry_size)
143 struct be_dma_mem *mem = &q->dma_mem;
145 memset(q, 0, sizeof(*q));
147 q->entry_size = entry_size;
148 mem->size = len * entry_size;
149 mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
156 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
160 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
162 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
164 if (!enabled && enable)
165 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
166 else if (enabled && !enable)
167 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
171 pci_write_config_dword(adapter->pdev,
172 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
175 static void be_intr_set(struct be_adapter *adapter, bool enable)
179 /* On lancer interrupts can't be controlled via this register */
180 if (lancer_chip(adapter))
183 if (adapter->eeh_error)
186 status = be_cmd_intr_set(adapter, enable);
188 be_reg_intr_set(adapter, enable);
191 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
194 val |= qid & DB_RQ_RING_ID_MASK;
195 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
198 iowrite32(val, adapter->db + DB_RQ_OFFSET);
201 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
205 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
206 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
209 iowrite32(val, adapter->db + txo->db_offset);
212 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
213 bool arm, bool clear_int, u16 num_popped)
216 val |= qid & DB_EQ_RING_ID_MASK;
217 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
218 DB_EQ_RING_ID_EXT_MASK_SHIFT);
220 if (adapter->eeh_error)
224 val |= 1 << DB_EQ_REARM_SHIFT;
226 val |= 1 << DB_EQ_CLR_SHIFT;
227 val |= 1 << DB_EQ_EVNT_SHIFT;
228 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
229 iowrite32(val, adapter->db + DB_EQ_OFFSET);
232 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
235 val |= qid & DB_CQ_RING_ID_MASK;
236 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
237 DB_CQ_RING_ID_EXT_MASK_SHIFT);
239 if (adapter->eeh_error)
243 val |= 1 << DB_CQ_REARM_SHIFT;
244 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
245 iowrite32(val, adapter->db + DB_CQ_OFFSET);
248 static int be_mac_addr_set(struct net_device *netdev, void *p)
250 struct be_adapter *adapter = netdev_priv(netdev);
251 struct device *dev = &adapter->pdev->dev;
252 struct sockaddr *addr = p;
255 u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0;
257 if (!is_valid_ether_addr(addr->sa_data))
258 return -EADDRNOTAVAIL;
260 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
261 * privilege or if PF did not provision the new MAC address.
262 * On BE3, this cmd will always fail if the VF doesn't have the
263 * FILTMGMT privilege. This failure is OK, only if the PF programmed
264 * the MAC for the VF.
266 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
267 adapter->if_handle, &adapter->pmac_id[0], 0);
269 curr_pmac_id = adapter->pmac_id[0];
271 /* Delete the old programmed MAC. This call may fail if the
272 * old MAC was already deleted by the PF driver.
274 if (adapter->pmac_id[0] != old_pmac_id)
275 be_cmd_pmac_del(adapter, adapter->if_handle,
279 /* Decide if the new MAC is successfully activated only after
282 status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac);
286 /* The MAC change did not happen, either due to lack of privilege
287 * or PF didn't pre-provision.
289 if (memcmp(addr->sa_data, mac, ETH_ALEN)) {
294 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
295 dev_info(dev, "MAC address changed to %pM\n", mac);
298 dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
302 /* BE2 supports only v0 cmd */
303 static void *hw_stats_from_cmd(struct be_adapter *adapter)
305 if (BE2_chip(adapter)) {
306 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
308 return &cmd->hw_stats;
310 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
312 return &cmd->hw_stats;
316 /* BE2 supports only v0 cmd */
317 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
319 if (BE2_chip(adapter)) {
320 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
322 return &hw_stats->erx;
324 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
326 return &hw_stats->erx;
330 static void populate_be_v0_stats(struct be_adapter *adapter)
332 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
333 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
334 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
335 struct be_port_rxf_stats_v0 *port_stats =
336 &rxf_stats->port[adapter->port_num];
337 struct be_drv_stats *drvs = &adapter->drv_stats;
339 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
340 drvs->rx_pause_frames = port_stats->rx_pause_frames;
341 drvs->rx_crc_errors = port_stats->rx_crc_errors;
342 drvs->rx_control_frames = port_stats->rx_control_frames;
343 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
344 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
345 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
346 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
347 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
348 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
349 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
350 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
351 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
352 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
353 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
354 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
355 drvs->rx_dropped_header_too_small =
356 port_stats->rx_dropped_header_too_small;
357 drvs->rx_address_filtered =
358 port_stats->rx_address_filtered +
359 port_stats->rx_vlan_filtered;
360 drvs->rx_alignment_symbol_errors =
361 port_stats->rx_alignment_symbol_errors;
363 drvs->tx_pauseframes = port_stats->tx_pauseframes;
364 drvs->tx_controlframes = port_stats->tx_controlframes;
366 if (adapter->port_num)
367 drvs->jabber_events = rxf_stats->port1_jabber_events;
369 drvs->jabber_events = rxf_stats->port0_jabber_events;
370 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
371 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
372 drvs->forwarded_packets = rxf_stats->forwarded_packets;
373 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
374 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
375 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
376 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
379 static void populate_be_v1_stats(struct be_adapter *adapter)
381 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
382 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
383 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
384 struct be_port_rxf_stats_v1 *port_stats =
385 &rxf_stats->port[adapter->port_num];
386 struct be_drv_stats *drvs = &adapter->drv_stats;
388 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
389 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
390 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
391 drvs->rx_pause_frames = port_stats->rx_pause_frames;
392 drvs->rx_crc_errors = port_stats->rx_crc_errors;
393 drvs->rx_control_frames = port_stats->rx_control_frames;
394 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
395 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
396 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
397 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
398 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
399 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
400 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
401 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
402 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
403 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
404 drvs->rx_dropped_header_too_small =
405 port_stats->rx_dropped_header_too_small;
406 drvs->rx_input_fifo_overflow_drop =
407 port_stats->rx_input_fifo_overflow_drop;
408 drvs->rx_address_filtered = port_stats->rx_address_filtered;
409 drvs->rx_alignment_symbol_errors =
410 port_stats->rx_alignment_symbol_errors;
411 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
412 drvs->tx_pauseframes = port_stats->tx_pauseframes;
413 drvs->tx_controlframes = port_stats->tx_controlframes;
414 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
415 drvs->jabber_events = port_stats->jabber_events;
416 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
417 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
418 drvs->forwarded_packets = rxf_stats->forwarded_packets;
419 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
420 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
421 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
422 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
425 static void populate_lancer_stats(struct be_adapter *adapter)
428 struct be_drv_stats *drvs = &adapter->drv_stats;
429 struct lancer_pport_stats *pport_stats =
430 pport_stats_from_cmd(adapter);
432 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
433 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
434 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
435 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
436 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
437 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
438 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
439 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
440 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
441 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
442 drvs->rx_dropped_tcp_length =
443 pport_stats->rx_dropped_invalid_tcp_length;
444 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
445 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
446 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
447 drvs->rx_dropped_header_too_small =
448 pport_stats->rx_dropped_header_too_small;
449 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
450 drvs->rx_address_filtered =
451 pport_stats->rx_address_filtered +
452 pport_stats->rx_vlan_filtered;
453 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
454 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
455 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
456 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
457 drvs->jabber_events = pport_stats->rx_jabbers;
458 drvs->forwarded_packets = pport_stats->num_forwards_lo;
459 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
460 drvs->rx_drops_too_many_frags =
461 pport_stats->rx_drops_too_many_frags_lo;
464 static void accumulate_16bit_val(u32 *acc, u16 val)
466 #define lo(x) (x & 0xFFFF)
467 #define hi(x) (x & 0xFFFF0000)
468 bool wrapped = val < lo(*acc);
469 u32 newacc = hi(*acc) + val;
473 ACCESS_ONCE(*acc) = newacc;
476 static void populate_erx_stats(struct be_adapter *adapter,
477 struct be_rx_obj *rxo,
480 if (!BEx_chip(adapter))
481 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
483 /* below erx HW counter can actually wrap around after
484 * 65535. Driver accumulates a 32-bit value
486 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
490 void be_parse_stats(struct be_adapter *adapter)
492 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
493 struct be_rx_obj *rxo;
497 if (lancer_chip(adapter)) {
498 populate_lancer_stats(adapter);
500 if (BE2_chip(adapter))
501 populate_be_v0_stats(adapter);
503 /* for BE3 and Skyhawk */
504 populate_be_v1_stats(adapter);
506 /* as erx_v1 is longer than v0, ok to use v1 for v0 access */
507 for_all_rx_queues(adapter, rxo, i) {
508 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
509 populate_erx_stats(adapter, rxo, erx_stat);
514 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
515 struct rtnl_link_stats64 *stats)
517 struct be_adapter *adapter = netdev_priv(netdev);
518 struct be_drv_stats *drvs = &adapter->drv_stats;
519 struct be_rx_obj *rxo;
520 struct be_tx_obj *txo;
525 for_all_rx_queues(adapter, rxo, i) {
526 const struct be_rx_stats *rx_stats = rx_stats(rxo);
528 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
529 pkts = rx_stats(rxo)->rx_pkts;
530 bytes = rx_stats(rxo)->rx_bytes;
531 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
532 stats->rx_packets += pkts;
533 stats->rx_bytes += bytes;
534 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
535 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
536 rx_stats(rxo)->rx_drops_no_frags;
539 for_all_tx_queues(adapter, txo, i) {
540 const struct be_tx_stats *tx_stats = tx_stats(txo);
542 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
543 pkts = tx_stats(txo)->tx_pkts;
544 bytes = tx_stats(txo)->tx_bytes;
545 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
546 stats->tx_packets += pkts;
547 stats->tx_bytes += bytes;
550 /* bad pkts received */
551 stats->rx_errors = drvs->rx_crc_errors +
552 drvs->rx_alignment_symbol_errors +
553 drvs->rx_in_range_errors +
554 drvs->rx_out_range_errors +
555 drvs->rx_frame_too_long +
556 drvs->rx_dropped_too_small +
557 drvs->rx_dropped_too_short +
558 drvs->rx_dropped_header_too_small +
559 drvs->rx_dropped_tcp_length +
560 drvs->rx_dropped_runt;
562 /* detailed rx errors */
563 stats->rx_length_errors = drvs->rx_in_range_errors +
564 drvs->rx_out_range_errors +
565 drvs->rx_frame_too_long;
567 stats->rx_crc_errors = drvs->rx_crc_errors;
569 /* frame alignment errors */
570 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
572 /* receiver fifo overrun */
573 /* drops_no_pbuf is no per i/f, it's per BE card */
574 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
575 drvs->rx_input_fifo_overflow_drop +
576 drvs->rx_drops_no_pbuf;
580 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
582 struct net_device *netdev = adapter->netdev;
584 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
585 netif_carrier_off(netdev);
586 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
589 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
590 netif_carrier_on(netdev);
592 netif_carrier_off(netdev);
595 static void be_tx_stats_update(struct be_tx_obj *txo,
596 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
598 struct be_tx_stats *stats = tx_stats(txo);
600 u64_stats_update_begin(&stats->sync);
602 stats->tx_wrbs += wrb_cnt;
603 stats->tx_bytes += copied;
604 stats->tx_pkts += (gso_segs ? gso_segs : 1);
607 u64_stats_update_end(&stats->sync);
610 /* Determine number of WRB entries needed to xmit data in an skb */
611 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
614 int cnt = (skb->len > skb->data_len);
616 cnt += skb_shinfo(skb)->nr_frags;
618 /* to account for hdr wrb */
620 if (lancer_chip(adapter) || !(cnt & 1)) {
623 /* add a dummy to make it an even num */
627 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
631 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
633 wrb->frag_pa_hi = upper_32_bits(addr);
634 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
635 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
639 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
645 vlan_tag = vlan_tx_tag_get(skb);
646 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
647 /* If vlan priority provided by OS is NOT in available bmap */
648 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
649 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
650 adapter->recommended_prio;
655 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
656 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
660 memset(hdr, 0, sizeof(*hdr));
662 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
664 if (skb_is_gso(skb)) {
665 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
666 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
667 hdr, skb_shinfo(skb)->gso_size);
668 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
669 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
670 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
672 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
673 else if (is_udp_pkt(skb))
674 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
677 if (vlan_tx_tag_present(skb)) {
678 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
679 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
680 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
683 /* To skip HW VLAN tagging: evt = 1, compl = 0 */
684 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
685 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
686 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
687 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
690 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
695 be_dws_le_to_cpu(wrb, sizeof(*wrb));
697 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
700 dma_unmap_single(dev, dma, wrb->frag_len,
703 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
707 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
708 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
713 struct device *dev = &adapter->pdev->dev;
714 struct sk_buff *first_skb = skb;
715 struct be_eth_wrb *wrb;
716 struct be_eth_hdr_wrb *hdr;
717 bool map_single = false;
720 hdr = queue_head_node(txq);
722 map_head = txq->head;
724 if (skb->len > skb->data_len) {
725 int len = skb_headlen(skb);
726 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
727 if (dma_mapping_error(dev, busaddr))
730 wrb = queue_head_node(txq);
731 wrb_fill(wrb, busaddr, len);
732 be_dws_cpu_to_le(wrb, sizeof(*wrb));
737 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
738 const struct skb_frag_struct *frag =
739 &skb_shinfo(skb)->frags[i];
740 busaddr = skb_frag_dma_map(dev, frag, 0,
741 skb_frag_size(frag), DMA_TO_DEVICE);
742 if (dma_mapping_error(dev, busaddr))
744 wrb = queue_head_node(txq);
745 wrb_fill(wrb, busaddr, skb_frag_size(frag));
746 be_dws_cpu_to_le(wrb, sizeof(*wrb));
748 copied += skb_frag_size(frag);
752 wrb = queue_head_node(txq);
754 be_dws_cpu_to_le(wrb, sizeof(*wrb));
758 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
759 be_dws_cpu_to_le(hdr, sizeof(*hdr));
763 txq->head = map_head;
765 wrb = queue_head_node(txq);
766 unmap_tx_frag(dev, wrb, map_single);
768 copied -= wrb->frag_len;
774 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
780 skb = skb_share_check(skb, GFP_ATOMIC);
784 if (vlan_tx_tag_present(skb))
785 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
787 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
789 vlan_tag = adapter->pvid;
790 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
791 * skip VLAN insertion
794 *skip_hw_vlan = true;
798 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
804 /* Insert the outer VLAN, if any */
805 if (adapter->qnq_vid) {
806 vlan_tag = adapter->qnq_vid;
807 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
811 *skip_hw_vlan = true;
817 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
819 struct ethhdr *eh = (struct ethhdr *)skb->data;
820 u16 offset = ETH_HLEN;
822 if (eh->h_proto == htons(ETH_P_IPV6)) {
823 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
825 offset += sizeof(struct ipv6hdr);
826 if (ip6h->nexthdr != NEXTHDR_TCP &&
827 ip6h->nexthdr != NEXTHDR_UDP) {
828 struct ipv6_opt_hdr *ehdr =
829 (struct ipv6_opt_hdr *) (skb->data + offset);
831 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
832 if (ehdr->hdrlen == 0xff)
839 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
841 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
844 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
847 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
850 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
854 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
855 unsigned int eth_hdr_len;
858 /* Lancer ASIC has a bug wherein packets that are 32 bytes or less
859 * may cause a transmit stall on that port. So the work-around is to
860 * pad such packets to a 36-byte length.
862 if (unlikely(lancer_chip(adapter) && skb->len <= 32)) {
863 if (skb_padto(skb, 36))
868 /* For padded packets, BE HW modifies tot_len field in IP header
869 * incorrecly when VLAN tag is inserted by HW.
870 * For padded packets, Lancer computes incorrect checksum.
872 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
873 VLAN_ETH_HLEN : ETH_HLEN;
874 if (skb->len <= 60 &&
875 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
877 ip = (struct iphdr *)ip_hdr(skb);
878 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
881 /* If vlan tag is already inlined in the packet, skip HW VLAN
882 * tagging in UMC mode
884 if ((adapter->function_mode & UMC_ENABLED) &&
885 veh->h_vlan_proto == htons(ETH_P_8021Q))
886 *skip_hw_vlan = true;
888 /* HW has a bug wherein it will calculate CSUM for VLAN
889 * pkts even though it is disabled.
890 * Manually insert VLAN in pkt.
892 if (skb->ip_summed != CHECKSUM_PARTIAL &&
893 vlan_tx_tag_present(skb)) {
894 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
899 /* HW may lockup when VLAN HW tagging is requested on
900 * certain ipv6 packets. Drop such pkts if the HW workaround to
901 * skip HW tagging is not enabled by FW.
903 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
904 (adapter->pvid || adapter->qnq_vid) &&
905 !qnq_async_evt_rcvd(adapter)))
908 /* Manual VLAN tag insertion to prevent:
909 * ASIC lockup when the ASIC inserts VLAN tag into
910 * certain ipv6 packets. Insert VLAN tags in driver,
911 * and set event, completion, vlan bits accordingly
914 if (be_ipv6_tx_stall_chk(adapter, skb) &&
915 be_vlan_tag_tx_chk(adapter, skb)) {
916 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
923 dev_kfree_skb_any(skb);
927 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
929 struct be_adapter *adapter = netdev_priv(netdev);
930 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
931 struct be_queue_info *txq = &txo->q;
932 bool dummy_wrb, stopped = false;
933 u32 wrb_cnt = 0, copied = 0;
934 bool skip_hw_vlan = false;
935 u32 start = txq->head;
937 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
941 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
943 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
946 int gso_segs = skb_shinfo(skb)->gso_segs;
948 /* record the sent skb in the sent_skb table */
949 BUG_ON(txo->sent_skb_list[start]);
950 txo->sent_skb_list[start] = skb;
952 /* Ensure txq has space for the next skb; Else stop the queue
953 * *BEFORE* ringing the tx doorbell, so that we serialze the
954 * tx compls of the current transmit which'll wake up the queue
956 atomic_add(wrb_cnt, &txq->used);
957 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
959 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
963 be_txq_notify(adapter, txo, wrb_cnt);
965 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
968 dev_kfree_skb_any(skb);
973 static int be_change_mtu(struct net_device *netdev, int new_mtu)
975 struct be_adapter *adapter = netdev_priv(netdev);
976 if (new_mtu < BE_MIN_MTU ||
977 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
978 (ETH_HLEN + ETH_FCS_LEN))) {
979 dev_info(&adapter->pdev->dev,
980 "MTU must be between %d and %d bytes\n",
982 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
985 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
986 netdev->mtu, new_mtu);
987 netdev->mtu = new_mtu;
992 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
993 * If the user configures more, place BE in vlan promiscuous mode.
995 static int be_vid_config(struct be_adapter *adapter)
997 u16 vids[BE_NUM_VLANS_SUPPORTED];
1001 /* No need to further configure vids if in promiscuous mode */
1002 if (adapter->promiscuous)
1005 if (adapter->vlans_added > be_max_vlans(adapter))
1006 goto set_vlan_promisc;
1008 /* Construct VLAN Table to give to HW */
1009 for (i = 0; i < VLAN_N_VID; i++)
1010 if (adapter->vlan_tag[i])
1011 vids[num++] = cpu_to_le16(i);
1013 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1016 /* Set to VLAN promisc mode as setting VLAN filter failed */
1018 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
1019 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
1020 goto set_vlan_promisc;
1026 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1031 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1033 struct be_adapter *adapter = netdev_priv(netdev);
1036 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1041 /* Packets with VID 0 are always received by Lancer by default */
1042 if (lancer_chip(adapter) && vid == 0)
1045 adapter->vlan_tag[vid] = 1;
1046 if (adapter->vlans_added <= (be_max_vlans(adapter) + 1))
1047 status = be_vid_config(adapter);
1050 adapter->vlans_added++;
1052 adapter->vlan_tag[vid] = 0;
1057 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1059 struct be_adapter *adapter = netdev_priv(netdev);
1062 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1067 /* Packets with VID 0 are always received by Lancer by default */
1068 if (lancer_chip(adapter) && vid == 0)
1071 adapter->vlan_tag[vid] = 0;
1072 if (adapter->vlans_added <= be_max_vlans(adapter))
1073 status = be_vid_config(adapter);
1076 adapter->vlans_added--;
1078 adapter->vlan_tag[vid] = 1;
1083 static void be_set_rx_mode(struct net_device *netdev)
1085 struct be_adapter *adapter = netdev_priv(netdev);
1088 if (netdev->flags & IFF_PROMISC) {
1089 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1090 adapter->promiscuous = true;
1094 /* BE was previously in promiscuous mode; disable it */
1095 if (adapter->promiscuous) {
1096 adapter->promiscuous = false;
1097 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1099 if (adapter->vlans_added)
1100 be_vid_config(adapter);
1103 /* Enable multicast promisc if num configured exceeds what we support */
1104 if (netdev->flags & IFF_ALLMULTI ||
1105 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1106 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1110 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1111 struct netdev_hw_addr *ha;
1112 int i = 1; /* First slot is claimed by the Primary MAC */
1114 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1115 be_cmd_pmac_del(adapter, adapter->if_handle,
1116 adapter->pmac_id[i], 0);
1119 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1120 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1121 adapter->promiscuous = true;
1125 netdev_for_each_uc_addr(ha, adapter->netdev) {
1126 adapter->uc_macs++; /* First slot is for Primary MAC */
1127 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1129 &adapter->pmac_id[adapter->uc_macs], 0);
1133 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1135 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1137 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1138 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1139 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1145 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1147 struct be_adapter *adapter = netdev_priv(netdev);
1148 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1151 if (!sriov_enabled(adapter))
1154 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1157 if (BEx_chip(adapter)) {
1158 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1161 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1162 &vf_cfg->pmac_id, vf + 1);
1164 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1169 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1172 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1177 static int be_get_vf_config(struct net_device *netdev, int vf,
1178 struct ifla_vf_info *vi)
1180 struct be_adapter *adapter = netdev_priv(netdev);
1181 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1183 if (!sriov_enabled(adapter))
1186 if (vf >= adapter->num_vfs)
1190 vi->tx_rate = vf_cfg->tx_rate;
1191 vi->vlan = vf_cfg->vlan_tag;
1193 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1198 static int be_set_vf_vlan(struct net_device *netdev,
1199 int vf, u16 vlan, u8 qos)
1201 struct be_adapter *adapter = netdev_priv(netdev);
1204 if (!sriov_enabled(adapter))
1207 if (vf >= adapter->num_vfs || vlan > 4095)
1211 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1212 /* If this is new value, program it. Else skip. */
1213 adapter->vf_cfg[vf].vlan_tag = vlan;
1215 status = be_cmd_set_hsw_config(adapter, vlan,
1216 vf + 1, adapter->vf_cfg[vf].if_handle, 0);
1219 /* Reset Transparent Vlan Tagging. */
1220 adapter->vf_cfg[vf].vlan_tag = 0;
1221 vlan = adapter->vf_cfg[vf].def_vid;
1222 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1223 adapter->vf_cfg[vf].if_handle, 0);
1228 dev_info(&adapter->pdev->dev,
1229 "VLAN %d config on VF %d failed\n", vlan, vf);
1233 static int be_set_vf_tx_rate(struct net_device *netdev,
1236 struct be_adapter *adapter = netdev_priv(netdev);
1239 if (!sriov_enabled(adapter))
1242 if (vf >= adapter->num_vfs)
1245 if (rate < 100 || rate > 10000) {
1246 dev_err(&adapter->pdev->dev,
1247 "tx rate must be between 100 and 10000 Mbps\n");
1251 if (lancer_chip(adapter))
1252 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1254 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1257 dev_err(&adapter->pdev->dev,
1258 "tx rate %d on VF %d failed\n", rate, vf);
1260 adapter->vf_cfg[vf].tx_rate = rate;
1264 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1266 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1267 ulong now = jiffies;
1268 ulong delta = now - stats->rx_jiffies;
1270 unsigned int start, eqd;
1272 if (!eqo->enable_aic) {
1277 if (eqo->idx >= adapter->num_rx_qs)
1280 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1282 /* Wrapped around */
1283 if (time_before(now, stats->rx_jiffies)) {
1284 stats->rx_jiffies = now;
1288 /* Update once a second */
1293 start = u64_stats_fetch_begin_bh(&stats->sync);
1294 pkts = stats->rx_pkts;
1295 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1297 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1298 stats->rx_pkts_prev = pkts;
1299 stats->rx_jiffies = now;
1300 eqd = (stats->rx_pps / 110000) << 3;
1301 eqd = min(eqd, eqo->max_eqd);
1302 eqd = max(eqd, eqo->min_eqd);
1307 if (eqd != eqo->cur_eqd) {
1308 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1313 static void be_rx_stats_update(struct be_rx_obj *rxo,
1314 struct be_rx_compl_info *rxcp)
1316 struct be_rx_stats *stats = rx_stats(rxo);
1318 u64_stats_update_begin(&stats->sync);
1320 stats->rx_bytes += rxcp->pkt_size;
1322 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1323 stats->rx_mcast_pkts++;
1325 stats->rx_compl_err++;
1326 u64_stats_update_end(&stats->sync);
1329 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1331 /* L4 checksum is not reliable for non TCP/UDP packets.
1332 * Also ignore ipcksm for ipv6 pkts */
1333 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1334 (rxcp->ip_csum || rxcp->ipv6);
1337 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1340 struct be_adapter *adapter = rxo->adapter;
1341 struct be_rx_page_info *rx_page_info;
1342 struct be_queue_info *rxq = &rxo->q;
1344 rx_page_info = &rxo->page_info_tbl[frag_idx];
1345 BUG_ON(!rx_page_info->page);
1347 if (rx_page_info->last_page_user) {
1348 dma_unmap_page(&adapter->pdev->dev,
1349 dma_unmap_addr(rx_page_info, bus),
1350 adapter->big_page_size, DMA_FROM_DEVICE);
1351 rx_page_info->last_page_user = false;
1354 atomic_dec(&rxq->used);
1355 return rx_page_info;
1358 /* Throwaway the data in the Rx completion */
1359 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1360 struct be_rx_compl_info *rxcp)
1362 struct be_queue_info *rxq = &rxo->q;
1363 struct be_rx_page_info *page_info;
1364 u16 i, num_rcvd = rxcp->num_rcvd;
1366 for (i = 0; i < num_rcvd; i++) {
1367 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1368 put_page(page_info->page);
1369 memset(page_info, 0, sizeof(*page_info));
1370 index_inc(&rxcp->rxq_idx, rxq->len);
1375 * skb_fill_rx_data forms a complete skb for an ether frame
1376 * indicated by rxcp.
1378 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1379 struct be_rx_compl_info *rxcp)
1381 struct be_queue_info *rxq = &rxo->q;
1382 struct be_rx_page_info *page_info;
1384 u16 hdr_len, curr_frag_len, remaining;
1387 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1388 start = page_address(page_info->page) + page_info->page_offset;
1391 /* Copy data in the first descriptor of this completion */
1392 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1394 skb->len = curr_frag_len;
1395 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1396 memcpy(skb->data, start, curr_frag_len);
1397 /* Complete packet has now been moved to data */
1398 put_page(page_info->page);
1400 skb->tail += curr_frag_len;
1403 memcpy(skb->data, start, hdr_len);
1404 skb_shinfo(skb)->nr_frags = 1;
1405 skb_frag_set_page(skb, 0, page_info->page);
1406 skb_shinfo(skb)->frags[0].page_offset =
1407 page_info->page_offset + hdr_len;
1408 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1409 skb->data_len = curr_frag_len - hdr_len;
1410 skb->truesize += rx_frag_size;
1411 skb->tail += hdr_len;
1413 page_info->page = NULL;
1415 if (rxcp->pkt_size <= rx_frag_size) {
1416 BUG_ON(rxcp->num_rcvd != 1);
1420 /* More frags present for this completion */
1421 index_inc(&rxcp->rxq_idx, rxq->len);
1422 remaining = rxcp->pkt_size - curr_frag_len;
1423 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1424 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1425 curr_frag_len = min(remaining, rx_frag_size);
1427 /* Coalesce all frags from the same physical page in one slot */
1428 if (page_info->page_offset == 0) {
1431 skb_frag_set_page(skb, j, page_info->page);
1432 skb_shinfo(skb)->frags[j].page_offset =
1433 page_info->page_offset;
1434 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1435 skb_shinfo(skb)->nr_frags++;
1437 put_page(page_info->page);
1440 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1441 skb->len += curr_frag_len;
1442 skb->data_len += curr_frag_len;
1443 skb->truesize += rx_frag_size;
1444 remaining -= curr_frag_len;
1445 index_inc(&rxcp->rxq_idx, rxq->len);
1446 page_info->page = NULL;
1448 BUG_ON(j > MAX_SKB_FRAGS);
1451 /* Process the RX completion indicated by rxcp when GRO is disabled */
1452 static void be_rx_compl_process(struct be_rx_obj *rxo,
1453 struct be_rx_compl_info *rxcp)
1455 struct be_adapter *adapter = rxo->adapter;
1456 struct net_device *netdev = adapter->netdev;
1457 struct sk_buff *skb;
1459 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1460 if (unlikely(!skb)) {
1461 rx_stats(rxo)->rx_drops_no_skbs++;
1462 be_rx_compl_discard(rxo, rxcp);
1466 skb_fill_rx_data(rxo, skb, rxcp);
1468 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1469 skb->ip_summed = CHECKSUM_UNNECESSARY;
1471 skb_checksum_none_assert(skb);
1473 skb->protocol = eth_type_trans(skb, netdev);
1474 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1475 if (netdev->features & NETIF_F_RXHASH)
1476 skb->rxhash = rxcp->rss_hash;
1480 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1482 netif_receive_skb(skb);
1485 /* Process the RX completion indicated by rxcp when GRO is enabled */
1486 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1487 struct napi_struct *napi,
1488 struct be_rx_compl_info *rxcp)
1490 struct be_adapter *adapter = rxo->adapter;
1491 struct be_rx_page_info *page_info;
1492 struct sk_buff *skb = NULL;
1493 struct be_queue_info *rxq = &rxo->q;
1494 u16 remaining, curr_frag_len;
1497 skb = napi_get_frags(napi);
1499 be_rx_compl_discard(rxo, rxcp);
1503 remaining = rxcp->pkt_size;
1504 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1505 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1507 curr_frag_len = min(remaining, rx_frag_size);
1509 /* Coalesce all frags from the same physical page in one slot */
1510 if (i == 0 || page_info->page_offset == 0) {
1511 /* First frag or Fresh page */
1513 skb_frag_set_page(skb, j, page_info->page);
1514 skb_shinfo(skb)->frags[j].page_offset =
1515 page_info->page_offset;
1516 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1518 put_page(page_info->page);
1520 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1521 skb->truesize += rx_frag_size;
1522 remaining -= curr_frag_len;
1523 index_inc(&rxcp->rxq_idx, rxq->len);
1524 memset(page_info, 0, sizeof(*page_info));
1526 BUG_ON(j > MAX_SKB_FRAGS);
1528 skb_shinfo(skb)->nr_frags = j + 1;
1529 skb->len = rxcp->pkt_size;
1530 skb->data_len = rxcp->pkt_size;
1531 skb->ip_summed = CHECKSUM_UNNECESSARY;
1532 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1533 if (adapter->netdev->features & NETIF_F_RXHASH)
1534 skb->rxhash = rxcp->rss_hash;
1537 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1539 napi_gro_frags(napi);
1542 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1543 struct be_rx_compl_info *rxcp)
1546 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1547 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1548 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1549 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1550 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1552 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1554 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1556 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1558 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1560 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1562 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1564 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1566 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1568 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1571 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1574 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1575 struct be_rx_compl_info *rxcp)
1578 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1579 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1580 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1581 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1582 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1584 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1586 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1588 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1590 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1592 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1594 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1596 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1598 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1600 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1603 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1604 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1608 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1610 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1611 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1612 struct be_adapter *adapter = rxo->adapter;
1614 /* For checking the valid bit it is Ok to use either definition as the
1615 * valid bit is at the same position in both v0 and v1 Rx compl */
1616 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1620 be_dws_le_to_cpu(compl, sizeof(*compl));
1622 if (adapter->be3_native)
1623 be_parse_rx_compl_v1(compl, rxcp);
1625 be_parse_rx_compl_v0(compl, rxcp);
1631 /* vlanf could be wrongly set in some cards.
1632 * ignore if vtm is not set */
1633 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1636 if (!lancer_chip(adapter))
1637 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1639 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1640 !adapter->vlan_tag[rxcp->vlan_tag])
1644 /* As the compl has been parsed, reset it; we wont touch it again */
1645 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1647 queue_tail_inc(&rxo->cq);
1651 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1653 u32 order = get_order(size);
1657 return alloc_pages(gfp, order);
1661 * Allocate a page, split it to fragments of size rx_frag_size and post as
1662 * receive buffers to BE
1664 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1666 struct be_adapter *adapter = rxo->adapter;
1667 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1668 struct be_queue_info *rxq = &rxo->q;
1669 struct page *pagep = NULL;
1670 struct be_eth_rx_d *rxd;
1671 u64 page_dmaaddr = 0, frag_dmaaddr;
1672 u32 posted, page_offset = 0;
1674 page_info = &rxo->page_info_tbl[rxq->head];
1675 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1677 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1678 if (unlikely(!pagep)) {
1679 rx_stats(rxo)->rx_post_fail++;
1682 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1683 0, adapter->big_page_size,
1685 page_info->page_offset = 0;
1688 page_info->page_offset = page_offset + rx_frag_size;
1690 page_offset = page_info->page_offset;
1691 page_info->page = pagep;
1692 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1693 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1695 rxd = queue_head_node(rxq);
1696 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1697 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1699 /* Any space left in the current big page for another frag? */
1700 if ((page_offset + rx_frag_size + rx_frag_size) >
1701 adapter->big_page_size) {
1703 page_info->last_page_user = true;
1706 prev_page_info = page_info;
1707 queue_head_inc(rxq);
1708 page_info = &rxo->page_info_tbl[rxq->head];
1711 prev_page_info->last_page_user = true;
1714 atomic_add(posted, &rxq->used);
1715 be_rxq_notify(adapter, rxq->id, posted);
1716 } else if (atomic_read(&rxq->used) == 0) {
1717 /* Let be_worker replenish when memory is available */
1718 rxo->rx_post_starved = true;
1722 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1724 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1726 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1730 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1732 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1734 queue_tail_inc(tx_cq);
1738 static u16 be_tx_compl_process(struct be_adapter *adapter,
1739 struct be_tx_obj *txo, u16 last_index)
1741 struct be_queue_info *txq = &txo->q;
1742 struct be_eth_wrb *wrb;
1743 struct sk_buff **sent_skbs = txo->sent_skb_list;
1744 struct sk_buff *sent_skb;
1745 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1746 bool unmap_skb_hdr = true;
1748 sent_skb = sent_skbs[txq->tail];
1750 sent_skbs[txq->tail] = NULL;
1752 /* skip header wrb */
1753 queue_tail_inc(txq);
1756 cur_index = txq->tail;
1757 wrb = queue_tail_node(txq);
1758 unmap_tx_frag(&adapter->pdev->dev, wrb,
1759 (unmap_skb_hdr && skb_headlen(sent_skb)));
1760 unmap_skb_hdr = false;
1763 queue_tail_inc(txq);
1764 } while (cur_index != last_index);
1766 kfree_skb(sent_skb);
1770 /* Return the number of events in the event queue */
1771 static inline int events_get(struct be_eq_obj *eqo)
1773 struct be_eq_entry *eqe;
1777 eqe = queue_tail_node(&eqo->q);
1784 queue_tail_inc(&eqo->q);
1790 /* Leaves the EQ is disarmed state */
1791 static void be_eq_clean(struct be_eq_obj *eqo)
1793 int num = events_get(eqo);
1795 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1798 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1800 struct be_rx_page_info *page_info;
1801 struct be_queue_info *rxq = &rxo->q;
1802 struct be_queue_info *rx_cq = &rxo->cq;
1803 struct be_rx_compl_info *rxcp;
1804 struct be_adapter *adapter = rxo->adapter;
1808 /* Consume pending rx completions.
1809 * Wait for the flush completion (identified by zero num_rcvd)
1810 * to arrive. Notify CQ even when there are no more CQ entries
1811 * for HW to flush partially coalesced CQ entries.
1812 * In Lancer, there is no need to wait for flush compl.
1815 rxcp = be_rx_compl_get(rxo);
1817 if (lancer_chip(adapter))
1820 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1821 dev_warn(&adapter->pdev->dev,
1822 "did not receive flush compl\n");
1825 be_cq_notify(adapter, rx_cq->id, true, 0);
1828 be_rx_compl_discard(rxo, rxcp);
1829 be_cq_notify(adapter, rx_cq->id, false, 1);
1830 if (rxcp->num_rcvd == 0)
1835 /* After cleanup, leave the CQ in unarmed state */
1836 be_cq_notify(adapter, rx_cq->id, false, 0);
1838 /* Then free posted rx buffers that were not used */
1839 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1840 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1841 page_info = get_rx_page_info(rxo, tail);
1842 put_page(page_info->page);
1843 memset(page_info, 0, sizeof(*page_info));
1845 BUG_ON(atomic_read(&rxq->used));
1846 rxq->tail = rxq->head = 0;
1849 static void be_tx_compl_clean(struct be_adapter *adapter)
1851 struct be_tx_obj *txo;
1852 struct be_queue_info *txq;
1853 struct be_eth_tx_compl *txcp;
1854 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1855 struct sk_buff *sent_skb;
1857 int i, pending_txqs;
1859 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1861 pending_txqs = adapter->num_tx_qs;
1863 for_all_tx_queues(adapter, txo, i) {
1865 while ((txcp = be_tx_compl_get(&txo->cq))) {
1867 AMAP_GET_BITS(struct amap_eth_tx_compl,
1869 num_wrbs += be_tx_compl_process(adapter, txo,
1874 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1875 atomic_sub(num_wrbs, &txq->used);
1879 if (atomic_read(&txq->used) == 0)
1883 if (pending_txqs == 0 || ++timeo > 200)
1889 for_all_tx_queues(adapter, txo, i) {
1891 if (atomic_read(&txq->used))
1892 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1893 atomic_read(&txq->used));
1895 /* free posted tx for which compls will never arrive */
1896 while (atomic_read(&txq->used)) {
1897 sent_skb = txo->sent_skb_list[txq->tail];
1898 end_idx = txq->tail;
1899 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1901 index_adv(&end_idx, num_wrbs - 1, txq->len);
1902 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1903 atomic_sub(num_wrbs, &txq->used);
1908 static void be_evt_queues_destroy(struct be_adapter *adapter)
1910 struct be_eq_obj *eqo;
1913 for_all_evt_queues(adapter, eqo, i) {
1914 if (eqo->q.created) {
1916 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1917 netif_napi_del(&eqo->napi);
1919 be_queue_free(adapter, &eqo->q);
1923 static int be_evt_queues_create(struct be_adapter *adapter)
1925 struct be_queue_info *eq;
1926 struct be_eq_obj *eqo;
1929 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
1930 adapter->cfg_num_qs);
1932 for_all_evt_queues(adapter, eqo, i) {
1933 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
1935 eqo->adapter = adapter;
1936 eqo->tx_budget = BE_TX_BUDGET;
1938 eqo->max_eqd = BE_MAX_EQD;
1939 eqo->enable_aic = true;
1942 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1943 sizeof(struct be_eq_entry));
1947 rc = be_cmd_eq_create(adapter, eqo);
1954 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1956 struct be_queue_info *q;
1958 q = &adapter->mcc_obj.q;
1960 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1961 be_queue_free(adapter, q);
1963 q = &adapter->mcc_obj.cq;
1965 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1966 be_queue_free(adapter, q);
1969 /* Must be called only after TX qs are created as MCC shares TX EQ */
1970 static int be_mcc_queues_create(struct be_adapter *adapter)
1972 struct be_queue_info *q, *cq;
1974 cq = &adapter->mcc_obj.cq;
1975 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1976 sizeof(struct be_mcc_compl)))
1979 /* Use the default EQ for MCC completions */
1980 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1983 q = &adapter->mcc_obj.q;
1984 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1985 goto mcc_cq_destroy;
1987 if (be_cmd_mccq_create(adapter, q, cq))
1993 be_queue_free(adapter, q);
1995 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1997 be_queue_free(adapter, cq);
2002 static void be_tx_queues_destroy(struct be_adapter *adapter)
2004 struct be_queue_info *q;
2005 struct be_tx_obj *txo;
2008 for_all_tx_queues(adapter, txo, i) {
2011 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2012 be_queue_free(adapter, q);
2016 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2017 be_queue_free(adapter, q);
2021 static int be_tx_qs_create(struct be_adapter *adapter)
2023 struct be_queue_info *cq, *eq;
2024 struct be_tx_obj *txo;
2027 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2029 for_all_tx_queues(adapter, txo, i) {
2031 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2032 sizeof(struct be_eth_tx_compl));
2036 /* If num_evt_qs is less than num_tx_qs, then more than
2037 * one txq share an eq
2039 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2040 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2044 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2045 sizeof(struct be_eth_wrb));
2049 status = be_cmd_txq_create(adapter, txo);
2054 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2055 adapter->num_tx_qs);
2059 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2061 struct be_queue_info *q;
2062 struct be_rx_obj *rxo;
2065 for_all_rx_queues(adapter, rxo, i) {
2068 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2069 be_queue_free(adapter, q);
2073 static int be_rx_cqs_create(struct be_adapter *adapter)
2075 struct be_queue_info *eq, *cq;
2076 struct be_rx_obj *rxo;
2079 /* We can create as many RSS rings as there are EQs. */
2080 adapter->num_rx_qs = adapter->num_evt_qs;
2082 /* We'll use RSS only if atleast 2 RSS rings are supported.
2083 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2085 if (adapter->num_rx_qs > 1)
2086 adapter->num_rx_qs++;
2088 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2089 for_all_rx_queues(adapter, rxo, i) {
2090 rxo->adapter = adapter;
2092 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2093 sizeof(struct be_eth_rx_compl));
2097 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2098 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2103 dev_info(&adapter->pdev->dev,
2104 "created %d RSS queue(s) and 1 default RX queue\n",
2105 adapter->num_rx_qs - 1);
2109 static irqreturn_t be_intx(int irq, void *dev)
2111 struct be_eq_obj *eqo = dev;
2112 struct be_adapter *adapter = eqo->adapter;
2115 /* IRQ is not expected when NAPI is scheduled as the EQ
2116 * will not be armed.
2117 * But, this can happen on Lancer INTx where it takes
2118 * a while to de-assert INTx or in BE2 where occasionaly
2119 * an interrupt may be raised even when EQ is unarmed.
2120 * If NAPI is already scheduled, then counting & notifying
2121 * events will orphan them.
2123 if (napi_schedule_prep(&eqo->napi)) {
2124 num_evts = events_get(eqo);
2125 __napi_schedule(&eqo->napi);
2127 eqo->spurious_intr = 0;
2129 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2131 /* Return IRQ_HANDLED only for the the first spurious intr
2132 * after a valid intr to stop the kernel from branding
2133 * this irq as a bad one!
2135 if (num_evts || eqo->spurious_intr++ == 0)
2141 static irqreturn_t be_msix(int irq, void *dev)
2143 struct be_eq_obj *eqo = dev;
2145 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2146 napi_schedule(&eqo->napi);
2150 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2152 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2155 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2158 struct be_adapter *adapter = rxo->adapter;
2159 struct be_queue_info *rx_cq = &rxo->cq;
2160 struct be_rx_compl_info *rxcp;
2163 for (work_done = 0; work_done < budget; work_done++) {
2164 rxcp = be_rx_compl_get(rxo);
2168 /* Is it a flush compl that has no data */
2169 if (unlikely(rxcp->num_rcvd == 0))
2172 /* Discard compl with partial DMA Lancer B0 */
2173 if (unlikely(!rxcp->pkt_size)) {
2174 be_rx_compl_discard(rxo, rxcp);
2178 /* On BE drop pkts that arrive due to imperfect filtering in
2179 * promiscuous mode on some skews
2181 if (unlikely(rxcp->port != adapter->port_num &&
2182 !lancer_chip(adapter))) {
2183 be_rx_compl_discard(rxo, rxcp);
2188 be_rx_compl_process_gro(rxo, napi, rxcp);
2190 be_rx_compl_process(rxo, rxcp);
2192 be_rx_stats_update(rxo, rxcp);
2196 be_cq_notify(adapter, rx_cq->id, true, work_done);
2198 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2199 be_post_rx_frags(rxo, GFP_ATOMIC);
2205 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2206 int budget, int idx)
2208 struct be_eth_tx_compl *txcp;
2209 int num_wrbs = 0, work_done;
2211 for (work_done = 0; work_done < budget; work_done++) {
2212 txcp = be_tx_compl_get(&txo->cq);
2215 num_wrbs += be_tx_compl_process(adapter, txo,
2216 AMAP_GET_BITS(struct amap_eth_tx_compl,
2221 be_cq_notify(adapter, txo->cq.id, true, work_done);
2222 atomic_sub(num_wrbs, &txo->q.used);
2224 /* As Tx wrbs have been freed up, wake up netdev queue
2225 * if it was stopped due to lack of tx wrbs. */
2226 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2227 atomic_read(&txo->q.used) < txo->q.len / 2) {
2228 netif_wake_subqueue(adapter->netdev, idx);
2231 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2232 tx_stats(txo)->tx_compl += work_done;
2233 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2235 return (work_done < budget); /* Done */
2238 int be_poll(struct napi_struct *napi, int budget)
2240 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2241 struct be_adapter *adapter = eqo->adapter;
2242 int max_work = 0, work, i, num_evts;
2245 num_evts = events_get(eqo);
2247 /* Process all TXQs serviced by this EQ */
2248 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2249 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2255 /* This loop will iterate twice for EQ0 in which
2256 * completions of the last RXQ (default one) are also processed
2257 * For other EQs the loop iterates only once
2259 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2260 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2261 max_work = max(work, max_work);
2264 if (is_mcc_eqo(eqo))
2265 be_process_mcc(adapter);
2267 if (max_work < budget) {
2268 napi_complete(napi);
2269 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2271 /* As we'll continue in polling mode, count and clear events */
2272 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2277 void be_detect_error(struct be_adapter *adapter)
2279 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2280 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2283 if (be_hw_error(adapter))
2286 if (lancer_chip(adapter)) {
2287 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2288 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2289 sliport_err1 = ioread32(adapter->db +
2290 SLIPORT_ERROR1_OFFSET);
2291 sliport_err2 = ioread32(adapter->db +
2292 SLIPORT_ERROR2_OFFSET);
2295 pci_read_config_dword(adapter->pdev,
2296 PCICFG_UE_STATUS_LOW, &ue_lo);
2297 pci_read_config_dword(adapter->pdev,
2298 PCICFG_UE_STATUS_HIGH, &ue_hi);
2299 pci_read_config_dword(adapter->pdev,
2300 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2301 pci_read_config_dword(adapter->pdev,
2302 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2304 ue_lo = (ue_lo & ~ue_lo_mask);
2305 ue_hi = (ue_hi & ~ue_hi_mask);
2308 /* On certain platforms BE hardware can indicate spurious UEs.
2309 * Allow the h/w to stop working completely in case of a real UE.
2310 * Hence not setting the hw_error for UE detection.
2312 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2313 adapter->hw_error = true;
2314 dev_err(&adapter->pdev->dev,
2315 "Error detected in the card\n");
2318 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2319 dev_err(&adapter->pdev->dev,
2320 "ERR: sliport status 0x%x\n", sliport_status);
2321 dev_err(&adapter->pdev->dev,
2322 "ERR: sliport error1 0x%x\n", sliport_err1);
2323 dev_err(&adapter->pdev->dev,
2324 "ERR: sliport error2 0x%x\n", sliport_err2);
2328 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2330 dev_err(&adapter->pdev->dev,
2331 "UE: %s bit set\n", ue_status_low_desc[i]);
2336 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2338 dev_err(&adapter->pdev->dev,
2339 "UE: %s bit set\n", ue_status_hi_desc[i]);
2345 static void be_msix_disable(struct be_adapter *adapter)
2347 if (msix_enabled(adapter)) {
2348 pci_disable_msix(adapter->pdev);
2349 adapter->num_msix_vec = 0;
2350 adapter->num_msix_roce_vec = 0;
2354 static int be_msix_enable(struct be_adapter *adapter)
2356 int i, status, num_vec;
2357 struct device *dev = &adapter->pdev->dev;
2359 /* If RoCE is supported, program the max number of NIC vectors that
2360 * may be configured via set-channels, along with vectors needed for
2361 * RoCe. Else, just program the number we'll use initially.
2363 if (be_roce_supported(adapter))
2364 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2365 2 * num_online_cpus());
2367 num_vec = adapter->cfg_num_qs;
2369 for (i = 0; i < num_vec; i++)
2370 adapter->msix_entries[i].entry = i;
2372 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2375 } else if (status >= MIN_MSIX_VECTORS) {
2377 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2383 dev_warn(dev, "MSIx enable failed\n");
2385 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2386 if (!be_physfn(adapter))
2390 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2391 adapter->num_msix_roce_vec = num_vec / 2;
2392 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2393 adapter->num_msix_roce_vec);
2396 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2398 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2399 adapter->num_msix_vec);
2403 static inline int be_msix_vec_get(struct be_adapter *adapter,
2404 struct be_eq_obj *eqo)
2406 return adapter->msix_entries[eqo->msix_idx].vector;
2409 static int be_msix_register(struct be_adapter *adapter)
2411 struct net_device *netdev = adapter->netdev;
2412 struct be_eq_obj *eqo;
2415 for_all_evt_queues(adapter, eqo, i) {
2416 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2417 vec = be_msix_vec_get(adapter, eqo);
2418 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2425 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2426 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2427 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2429 be_msix_disable(adapter);
2433 static int be_irq_register(struct be_adapter *adapter)
2435 struct net_device *netdev = adapter->netdev;
2438 if (msix_enabled(adapter)) {
2439 status = be_msix_register(adapter);
2442 /* INTx is not supported for VF */
2443 if (!be_physfn(adapter))
2447 /* INTx: only the first EQ is used */
2448 netdev->irq = adapter->pdev->irq;
2449 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2450 &adapter->eq_obj[0]);
2452 dev_err(&adapter->pdev->dev,
2453 "INTx request IRQ failed - err %d\n", status);
2457 adapter->isr_registered = true;
2461 static void be_irq_unregister(struct be_adapter *adapter)
2463 struct net_device *netdev = adapter->netdev;
2464 struct be_eq_obj *eqo;
2467 if (!adapter->isr_registered)
2471 if (!msix_enabled(adapter)) {
2472 free_irq(netdev->irq, &adapter->eq_obj[0]);
2477 for_all_evt_queues(adapter, eqo, i)
2478 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2481 adapter->isr_registered = false;
2484 static void be_rx_qs_destroy(struct be_adapter *adapter)
2486 struct be_queue_info *q;
2487 struct be_rx_obj *rxo;
2490 for_all_rx_queues(adapter, rxo, i) {
2493 be_cmd_rxq_destroy(adapter, q);
2494 be_rx_cq_clean(rxo);
2496 be_queue_free(adapter, q);
2500 static int be_close(struct net_device *netdev)
2502 struct be_adapter *adapter = netdev_priv(netdev);
2503 struct be_eq_obj *eqo;
2506 be_roce_dev_close(adapter);
2508 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2509 for_all_evt_queues(adapter, eqo, i)
2510 napi_disable(&eqo->napi);
2511 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2514 be_async_mcc_disable(adapter);
2516 /* Wait for all pending tx completions to arrive so that
2517 * all tx skbs are freed.
2519 netif_tx_disable(netdev);
2520 be_tx_compl_clean(adapter);
2522 be_rx_qs_destroy(adapter);
2524 for_all_evt_queues(adapter, eqo, i) {
2525 if (msix_enabled(adapter))
2526 synchronize_irq(be_msix_vec_get(adapter, eqo));
2528 synchronize_irq(netdev->irq);
2532 be_irq_unregister(adapter);
2537 static int be_rx_qs_create(struct be_adapter *adapter)
2539 struct be_rx_obj *rxo;
2543 for_all_rx_queues(adapter, rxo, i) {
2544 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2545 sizeof(struct be_eth_rx_d));
2550 /* The FW would like the default RXQ to be created first */
2551 rxo = default_rxo(adapter);
2552 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2553 adapter->if_handle, false, &rxo->rss_id);
2557 for_all_rss_queues(adapter, rxo, i) {
2558 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2559 rx_frag_size, adapter->if_handle,
2560 true, &rxo->rss_id);
2565 if (be_multi_rxq(adapter)) {
2566 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2567 for_all_rss_queues(adapter, rxo, i) {
2570 rsstable[j + i] = rxo->rss_id;
2573 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2574 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2576 if (!BEx_chip(adapter))
2577 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2578 RSS_ENABLE_UDP_IPV6;
2580 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2583 adapter->rss_flags = 0;
2588 /* First time posting */
2589 for_all_rx_queues(adapter, rxo, i)
2590 be_post_rx_frags(rxo, GFP_KERNEL);
2594 static int be_open(struct net_device *netdev)
2596 struct be_adapter *adapter = netdev_priv(netdev);
2597 struct be_eq_obj *eqo;
2598 struct be_rx_obj *rxo;
2599 struct be_tx_obj *txo;
2603 status = be_rx_qs_create(adapter);
2607 status = be_irq_register(adapter);
2611 for_all_rx_queues(adapter, rxo, i)
2612 be_cq_notify(adapter, rxo->cq.id, true, 0);
2614 for_all_tx_queues(adapter, txo, i)
2615 be_cq_notify(adapter, txo->cq.id, true, 0);
2617 be_async_mcc_enable(adapter);
2619 for_all_evt_queues(adapter, eqo, i) {
2620 napi_enable(&eqo->napi);
2621 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2623 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2625 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2627 be_link_status_update(adapter, link_status);
2629 netif_tx_start_all_queues(netdev);
2630 be_roce_dev_open(adapter);
2633 be_close(adapter->netdev);
2637 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2639 struct be_dma_mem cmd;
2643 memset(mac, 0, ETH_ALEN);
2645 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2646 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2652 status = pci_write_config_dword(adapter->pdev,
2653 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2655 dev_err(&adapter->pdev->dev,
2656 "Could not enable Wake-on-lan\n");
2657 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2661 status = be_cmd_enable_magic_wol(adapter,
2662 adapter->netdev->dev_addr, &cmd);
2663 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2664 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2666 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2667 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2668 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2671 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2676 * Generate a seed MAC address from the PF MAC Address using jhash.
2677 * MAC Address for VFs are assigned incrementally starting from the seed.
2678 * These addresses are programmed in the ASIC by the PF and the VF driver
2679 * queries for the MAC address during its probe.
2681 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2686 struct be_vf_cfg *vf_cfg;
2688 be_vf_eth_addr_generate(adapter, mac);
2690 for_all_vfs(adapter, vf_cfg, vf) {
2691 if (BEx_chip(adapter))
2692 status = be_cmd_pmac_add(adapter, mac,
2694 &vf_cfg->pmac_id, vf + 1);
2696 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2700 dev_err(&adapter->pdev->dev,
2701 "Mac address assignment failed for VF %d\n", vf);
2703 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2710 static int be_vfs_mac_query(struct be_adapter *adapter)
2714 struct be_vf_cfg *vf_cfg;
2715 bool active = false;
2717 for_all_vfs(adapter, vf_cfg, vf) {
2718 be_cmd_get_mac_from_list(adapter, mac, &active,
2719 &vf_cfg->pmac_id, 0);
2721 status = be_cmd_mac_addr_query(adapter, mac, false,
2722 vf_cfg->if_handle, 0);
2725 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2730 static void be_vf_clear(struct be_adapter *adapter)
2732 struct be_vf_cfg *vf_cfg;
2735 if (pci_vfs_assigned(adapter->pdev)) {
2736 dev_warn(&adapter->pdev->dev,
2737 "VFs are assigned to VMs: not disabling VFs\n");
2741 pci_disable_sriov(adapter->pdev);
2743 for_all_vfs(adapter, vf_cfg, vf) {
2744 if (BEx_chip(adapter))
2745 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2746 vf_cfg->pmac_id, vf + 1);
2748 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2751 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2754 kfree(adapter->vf_cfg);
2755 adapter->num_vfs = 0;
2758 static void be_clear_queues(struct be_adapter *adapter)
2760 be_mcc_queues_destroy(adapter);
2761 be_rx_cqs_destroy(adapter);
2762 be_tx_queues_destroy(adapter);
2763 be_evt_queues_destroy(adapter);
2766 static void be_cancel_worker(struct be_adapter *adapter)
2768 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2769 cancel_delayed_work_sync(&adapter->work);
2770 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2774 static int be_clear(struct be_adapter *adapter)
2778 be_cancel_worker(adapter);
2780 if (sriov_enabled(adapter))
2781 be_vf_clear(adapter);
2783 /* delete the primary mac along with the uc-mac list */
2784 for (i = 0; i < (adapter->uc_macs + 1); i++)
2785 be_cmd_pmac_del(adapter, adapter->if_handle,
2786 adapter->pmac_id[i], 0);
2787 adapter->uc_macs = 0;
2789 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2791 be_clear_queues(adapter);
2793 kfree(adapter->pmac_id);
2794 adapter->pmac_id = NULL;
2796 be_msix_disable(adapter);
2800 static int be_vfs_if_create(struct be_adapter *adapter)
2802 struct be_resources res = {0};
2803 struct be_vf_cfg *vf_cfg;
2804 u32 cap_flags, en_flags, vf;
2807 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2808 BE_IF_FLAGS_MULTICAST;
2810 for_all_vfs(adapter, vf_cfg, vf) {
2811 if (!BE3_chip(adapter)) {
2812 status = be_cmd_get_profile_config(adapter, &res,
2815 cap_flags = res.if_cap_flags;
2818 /* If a FW profile exists, then cap_flags are updated */
2819 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2820 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2821 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2822 &vf_cfg->if_handle, vf + 1);
2830 static int be_vf_setup_init(struct be_adapter *adapter)
2832 struct be_vf_cfg *vf_cfg;
2835 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2837 if (!adapter->vf_cfg)
2840 for_all_vfs(adapter, vf_cfg, vf) {
2841 vf_cfg->if_handle = -1;
2842 vf_cfg->pmac_id = -1;
2847 static int be_vf_setup(struct be_adapter *adapter)
2849 struct be_vf_cfg *vf_cfg;
2850 u16 def_vlan, lnk_speed;
2851 int status, old_vfs, vf;
2852 struct device *dev = &adapter->pdev->dev;
2855 old_vfs = pci_num_vf(adapter->pdev);
2857 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2858 if (old_vfs != num_vfs)
2859 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2860 adapter->num_vfs = old_vfs;
2862 if (num_vfs > be_max_vfs(adapter))
2863 dev_info(dev, "Device supports %d VFs and not %d\n",
2864 be_max_vfs(adapter), num_vfs);
2865 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
2866 if (!adapter->num_vfs)
2870 status = be_vf_setup_init(adapter);
2875 for_all_vfs(adapter, vf_cfg, vf) {
2876 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2881 status = be_vfs_if_create(adapter);
2887 status = be_vfs_mac_query(adapter);
2891 status = be_vf_eth_addr_config(adapter);
2896 for_all_vfs(adapter, vf_cfg, vf) {
2897 /* Allow VFs to programs MAC/VLAN filters */
2898 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
2899 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
2900 status = be_cmd_set_fn_privileges(adapter,
2905 dev_info(dev, "VF%d has FILTMGMT privilege\n",
2909 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2910 * Allow full available bandwidth
2912 if (BE3_chip(adapter) && !old_vfs)
2913 be_cmd_set_qos(adapter, 1000, vf+1);
2915 status = be_cmd_link_status_query(adapter, &lnk_speed,
2918 vf_cfg->tx_rate = lnk_speed;
2920 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2921 vf + 1, vf_cfg->if_handle, NULL);
2924 vf_cfg->def_vid = def_vlan;
2926 be_cmd_enable_vf(adapter, vf + 1);
2930 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
2932 dev_err(dev, "SRIOV enable failed\n");
2933 adapter->num_vfs = 0;
2939 dev_err(dev, "VF setup failed\n");
2940 be_vf_clear(adapter);
2944 /* On BE2/BE3 FW does not suggest the supported limits */
2945 static void BEx_get_resources(struct be_adapter *adapter,
2946 struct be_resources *res)
2948 struct pci_dev *pdev = adapter->pdev;
2949 bool use_sriov = false;
2951 if (BE3_chip(adapter) && be_physfn(adapter)) {
2954 max_vfs = pci_sriov_get_totalvfs(pdev);
2955 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
2956 use_sriov = res->max_vfs && num_vfs;
2959 if (be_physfn(adapter))
2960 res->max_uc_mac = BE_UC_PMAC_COUNT;
2962 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
2964 if (adapter->function_mode & FLEX10_MODE)
2965 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
2967 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
2968 res->max_mcast_mac = BE_MAX_MC;
2970 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
2971 !be_physfn(adapter))
2974 res->max_tx_qs = BE3_MAX_TX_QS;
2976 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2977 !use_sriov && be_physfn(adapter))
2978 res->max_rss_qs = (adapter->be3_native) ?
2979 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2980 res->max_rx_qs = res->max_rss_qs + 1;
2982 res->max_evt_qs = be_physfn(adapter) ? BE3_MAX_EVT_QS : 1;
2984 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
2985 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
2986 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
2989 static void be_setup_init(struct be_adapter *adapter)
2991 adapter->vlan_prio_bmap = 0xff;
2992 adapter->phy.link_speed = -1;
2993 adapter->if_handle = -1;
2994 adapter->be3_native = false;
2995 adapter->promiscuous = false;
2996 if (be_physfn(adapter))
2997 adapter->cmd_privileges = MAX_PRIVILEGES;
2999 adapter->cmd_privileges = MIN_PRIVILEGES;
3002 static int be_get_resources(struct be_adapter *adapter)
3004 struct device *dev = &adapter->pdev->dev;
3005 struct be_resources res = {0};
3008 if (BEx_chip(adapter)) {
3009 BEx_get_resources(adapter, &res);
3013 /* For BE3 only check if FW suggests a different max-txqs value */
3014 if (BE3_chip(adapter)) {
3015 status = be_cmd_get_profile_config(adapter, &res, 0);
3016 if (!status && res.max_tx_qs)
3017 adapter->res.max_tx_qs =
3018 min(adapter->res.max_tx_qs, res.max_tx_qs);
3021 /* For Lancer, SH etc read per-function resource limits from FW.
3022 * GET_FUNC_CONFIG returns per function guaranteed limits.
3023 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3025 if (!BEx_chip(adapter)) {
3026 status = be_cmd_get_func_config(adapter, &res);
3030 /* If RoCE may be enabled stash away half the EQs for RoCE */
3031 if (be_roce_supported(adapter))
3032 res.max_evt_qs /= 2;
3035 if (be_physfn(adapter)) {
3036 status = be_cmd_get_profile_config(adapter, &res, 0);
3039 adapter->res.max_vfs = res.max_vfs;
3042 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3043 be_max_txqs(adapter), be_max_rxqs(adapter),
3044 be_max_rss(adapter), be_max_eqs(adapter),
3045 be_max_vfs(adapter));
3046 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3047 be_max_uc(adapter), be_max_mc(adapter),
3048 be_max_vlans(adapter));
3054 /* Routine to query per function resource limits */
3055 static int be_get_config(struct be_adapter *adapter)
3059 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3060 &adapter->function_mode,
3061 &adapter->function_caps,
3062 &adapter->asic_rev);
3066 status = be_get_resources(adapter);
3070 /* primary mac needs 1 pmac entry */
3071 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3073 if (!adapter->pmac_id)
3076 /* Sanitize cfg_num_qs based on HW and platform limits */
3077 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3082 static int be_mac_setup(struct be_adapter *adapter)
3087 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3088 status = be_cmd_get_perm_mac(adapter, mac);
3092 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3093 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3095 /* Maybe the HW was reset; dev_addr must be re-programmed */
3096 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3099 /* On BE3 VFs this cmd may fail due to lack of privilege.
3100 * Ignore the failure as in this case pmac_id is fetched
3101 * in the IFACE_CREATE cmd.
3103 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3104 &adapter->pmac_id[0], 0);
3108 static void be_schedule_worker(struct be_adapter *adapter)
3110 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3111 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3114 static int be_setup_queues(struct be_adapter *adapter)
3116 struct net_device *netdev = adapter->netdev;
3119 status = be_evt_queues_create(adapter);
3123 status = be_tx_qs_create(adapter);
3127 status = be_rx_cqs_create(adapter);
3131 status = be_mcc_queues_create(adapter);
3135 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3139 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3145 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3149 int be_update_queues(struct be_adapter *adapter)
3151 struct net_device *netdev = adapter->netdev;
3154 if (netif_running(netdev))
3157 be_cancel_worker(adapter);
3159 /* If any vectors have been shared with RoCE we cannot re-program
3162 if (!adapter->num_msix_roce_vec)
3163 be_msix_disable(adapter);
3165 be_clear_queues(adapter);
3167 if (!msix_enabled(adapter)) {
3168 status = be_msix_enable(adapter);
3173 status = be_setup_queues(adapter);
3177 be_schedule_worker(adapter);
3179 if (netif_running(netdev))
3180 status = be_open(netdev);
3185 static int be_setup(struct be_adapter *adapter)
3187 struct device *dev = &adapter->pdev->dev;
3188 u32 tx_fc, rx_fc, en_flags;
3191 be_setup_init(adapter);
3193 if (!lancer_chip(adapter))
3194 be_cmd_req_native_mode(adapter);
3196 status = be_get_config(adapter);
3200 status = be_msix_enable(adapter);
3204 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3205 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3206 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3207 en_flags |= BE_IF_FLAGS_RSS;
3208 en_flags = en_flags & be_if_cap_flags(adapter);
3209 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3210 &adapter->if_handle, 0);
3214 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3216 status = be_setup_queues(adapter);
3221 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3222 /* In UMC mode FW does not return right privileges.
3223 * Override with correct privilege equivalent to PF.
3225 if (be_is_mc(adapter))
3226 adapter->cmd_privileges = MAX_PRIVILEGES;
3228 status = be_mac_setup(adapter);
3232 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3234 if (adapter->vlans_added)
3235 be_vid_config(adapter);
3237 be_set_rx_mode(adapter->netdev);
3239 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3241 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3242 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3245 if (be_physfn(adapter) && num_vfs) {
3246 if (be_max_vfs(adapter))
3247 be_vf_setup(adapter);
3249 dev_warn(dev, "device doesn't support SRIOV\n");
3252 status = be_cmd_get_phy_info(adapter);
3253 if (!status && be_pause_supported(adapter))
3254 adapter->phy.fc_autoneg = 1;
3256 be_schedule_worker(adapter);
3263 #ifdef CONFIG_NET_POLL_CONTROLLER
3264 static void be_netpoll(struct net_device *netdev)
3266 struct be_adapter *adapter = netdev_priv(netdev);
3267 struct be_eq_obj *eqo;
3270 for_all_evt_queues(adapter, eqo, i) {
3271 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3272 napi_schedule(&eqo->napi);
3279 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3280 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3282 static bool be_flash_redboot(struct be_adapter *adapter,
3283 const u8 *p, u32 img_start, int image_size,
3290 crc_offset = hdr_size + img_start + image_size - 4;
3294 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3297 dev_err(&adapter->pdev->dev,
3298 "could not get crc from flash, not flashing redboot\n");
3302 /*update redboot only if crc does not match*/
3303 if (!memcmp(flashed_crc, p, 4))
3309 static bool phy_flashing_required(struct be_adapter *adapter)
3311 return (adapter->phy.phy_type == TN_8022 &&
3312 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3315 static bool is_comp_in_ufi(struct be_adapter *adapter,
3316 struct flash_section_info *fsec, int type)
3318 int i = 0, img_type = 0;
3319 struct flash_section_info_g2 *fsec_g2 = NULL;
3321 if (BE2_chip(adapter))
3322 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3324 for (i = 0; i < MAX_FLASH_COMP; i++) {
3326 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3328 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3330 if (img_type == type)
3337 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3339 const struct firmware *fw)
3341 struct flash_section_info *fsec = NULL;
3342 const u8 *p = fw->data;
3345 while (p < (fw->data + fw->size)) {
3346 fsec = (struct flash_section_info *)p;
3347 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3354 static int be_flash(struct be_adapter *adapter, const u8 *img,
3355 struct be_dma_mem *flash_cmd, int optype, int img_size)
3357 u32 total_bytes = 0, flash_op, num_bytes = 0;
3359 struct be_cmd_write_flashrom *req = flash_cmd->va;
3361 total_bytes = img_size;
3362 while (total_bytes) {
3363 num_bytes = min_t(u32, 32*1024, total_bytes);
3365 total_bytes -= num_bytes;
3368 if (optype == OPTYPE_PHY_FW)
3369 flash_op = FLASHROM_OPER_PHY_FLASH;
3371 flash_op = FLASHROM_OPER_FLASH;
3373 if (optype == OPTYPE_PHY_FW)
3374 flash_op = FLASHROM_OPER_PHY_SAVE;
3376 flash_op = FLASHROM_OPER_SAVE;
3379 memcpy(req->data_buf, img, num_bytes);
3381 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3382 flash_op, num_bytes);
3384 if (status == ILLEGAL_IOCTL_REQ &&
3385 optype == OPTYPE_PHY_FW)
3387 dev_err(&adapter->pdev->dev,
3388 "cmd to write to flash rom failed.\n");
3395 /* For BE2, BE3 and BE3-R */
3396 static int be_flash_BEx(struct be_adapter *adapter,
3397 const struct firmware *fw,
3398 struct be_dma_mem *flash_cmd,
3402 int status = 0, i, filehdr_size = 0;
3403 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3404 const u8 *p = fw->data;
3405 const struct flash_comp *pflashcomp;
3406 int num_comp, redboot;
3407 struct flash_section_info *fsec = NULL;
3409 struct flash_comp gen3_flash_types[] = {
3410 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3411 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3412 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3413 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3414 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3415 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3416 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3417 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3418 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3419 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3420 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3421 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3422 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3423 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3424 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3425 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3426 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3427 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3428 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3429 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3432 struct flash_comp gen2_flash_types[] = {
3433 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3434 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3435 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3436 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3437 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3438 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3439 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3440 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3441 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3442 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3443 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3444 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3445 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3446 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3447 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3448 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3451 if (BE3_chip(adapter)) {
3452 pflashcomp = gen3_flash_types;
3453 filehdr_size = sizeof(struct flash_file_hdr_g3);
3454 num_comp = ARRAY_SIZE(gen3_flash_types);
3456 pflashcomp = gen2_flash_types;
3457 filehdr_size = sizeof(struct flash_file_hdr_g2);
3458 num_comp = ARRAY_SIZE(gen2_flash_types);
3461 /* Get flash section info*/
3462 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3464 dev_err(&adapter->pdev->dev,
3465 "Invalid Cookie. UFI corrupted ?\n");
3468 for (i = 0; i < num_comp; i++) {
3469 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3472 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3473 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3476 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3477 !phy_flashing_required(adapter))
3480 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3481 redboot = be_flash_redboot(adapter, fw->data,
3482 pflashcomp[i].offset, pflashcomp[i].size,
3483 filehdr_size + img_hdrs_size);
3489 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3490 if (p + pflashcomp[i].size > fw->data + fw->size)
3493 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3494 pflashcomp[i].size);
3496 dev_err(&adapter->pdev->dev,
3497 "Flashing section type %d failed.\n",
3498 pflashcomp[i].img_type);
3505 static int be_flash_skyhawk(struct be_adapter *adapter,
3506 const struct firmware *fw,
3507 struct be_dma_mem *flash_cmd, int num_of_images)
3509 int status = 0, i, filehdr_size = 0;
3510 int img_offset, img_size, img_optype, redboot;
3511 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3512 const u8 *p = fw->data;
3513 struct flash_section_info *fsec = NULL;
3515 filehdr_size = sizeof(struct flash_file_hdr_g3);
3516 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3518 dev_err(&adapter->pdev->dev,
3519 "Invalid Cookie. UFI corrupted ?\n");
3523 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3524 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3525 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3527 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3528 case IMAGE_FIRMWARE_iSCSI:
3529 img_optype = OPTYPE_ISCSI_ACTIVE;
3531 case IMAGE_BOOT_CODE:
3532 img_optype = OPTYPE_REDBOOT;
3534 case IMAGE_OPTION_ROM_ISCSI:
3535 img_optype = OPTYPE_BIOS;
3537 case IMAGE_OPTION_ROM_PXE:
3538 img_optype = OPTYPE_PXE_BIOS;
3540 case IMAGE_OPTION_ROM_FCoE:
3541 img_optype = OPTYPE_FCOE_BIOS;
3543 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3544 img_optype = OPTYPE_ISCSI_BACKUP;
3547 img_optype = OPTYPE_NCSI_FW;
3553 if (img_optype == OPTYPE_REDBOOT) {
3554 redboot = be_flash_redboot(adapter, fw->data,
3555 img_offset, img_size,
3556 filehdr_size + img_hdrs_size);
3562 p += filehdr_size + img_offset + img_hdrs_size;
3563 if (p + img_size > fw->data + fw->size)
3566 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3568 dev_err(&adapter->pdev->dev,
3569 "Flashing section type %d failed.\n",
3570 fsec->fsec_entry[i].type);
3577 static int lancer_fw_download(struct be_adapter *adapter,
3578 const struct firmware *fw)
3580 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3581 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3582 struct be_dma_mem flash_cmd;
3583 const u8 *data_ptr = NULL;
3584 u8 *dest_image_ptr = NULL;
3585 size_t image_size = 0;
3587 u32 data_written = 0;
3593 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3594 dev_err(&adapter->pdev->dev,
3595 "FW Image not properly aligned. "
3596 "Length must be 4 byte aligned.\n");
3598 goto lancer_fw_exit;
3601 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3602 + LANCER_FW_DOWNLOAD_CHUNK;
3603 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3604 &flash_cmd.dma, GFP_KERNEL);
3605 if (!flash_cmd.va) {
3607 goto lancer_fw_exit;
3610 dest_image_ptr = flash_cmd.va +
3611 sizeof(struct lancer_cmd_req_write_object);
3612 image_size = fw->size;
3613 data_ptr = fw->data;
3615 while (image_size) {
3616 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3618 /* Copy the image chunk content. */
3619 memcpy(dest_image_ptr, data_ptr, chunk_size);
3621 status = lancer_cmd_write_object(adapter, &flash_cmd,
3623 LANCER_FW_DOWNLOAD_LOCATION,
3624 &data_written, &change_status,
3629 offset += data_written;
3630 data_ptr += data_written;
3631 image_size -= data_written;
3635 /* Commit the FW written */
3636 status = lancer_cmd_write_object(adapter, &flash_cmd,
3638 LANCER_FW_DOWNLOAD_LOCATION,
3639 &data_written, &change_status,
3643 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3646 dev_err(&adapter->pdev->dev,
3647 "Firmware load error. "
3648 "Status code: 0x%x Additional Status: 0x%x\n",
3649 status, add_status);
3650 goto lancer_fw_exit;
3653 if (change_status == LANCER_FW_RESET_NEEDED) {
3654 status = lancer_physdev_ctrl(adapter,
3655 PHYSDEV_CONTROL_FW_RESET_MASK);
3657 dev_err(&adapter->pdev->dev,
3658 "Adapter busy for FW reset.\n"
3659 "New FW will not be active.\n");
3660 goto lancer_fw_exit;
3662 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3663 dev_err(&adapter->pdev->dev,
3664 "System reboot required for new FW"
3668 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3675 #define UFI_TYPE3R 10
3677 static int be_get_ufi_type(struct be_adapter *adapter,
3678 struct flash_file_hdr_g3 *fhdr)
3681 goto be_get_ufi_exit;
3683 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3685 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3686 if (fhdr->asic_type_rev == 0x10)
3690 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3694 dev_err(&adapter->pdev->dev,
3695 "UFI and Interface are not compatible for flashing\n");
3699 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3701 struct flash_file_hdr_g3 *fhdr3;
3702 struct image_hdr *img_hdr_ptr = NULL;
3703 struct be_dma_mem flash_cmd;
3705 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3707 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3708 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3709 &flash_cmd.dma, GFP_KERNEL);
3710 if (!flash_cmd.va) {
3716 fhdr3 = (struct flash_file_hdr_g3 *)p;
3718 ufi_type = be_get_ufi_type(adapter, fhdr3);
3720 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3721 for (i = 0; i < num_imgs; i++) {
3722 img_hdr_ptr = (struct image_hdr *)(fw->data +
3723 (sizeof(struct flash_file_hdr_g3) +
3724 i * sizeof(struct image_hdr)));
3725 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3728 status = be_flash_skyhawk(adapter, fw,
3729 &flash_cmd, num_imgs);
3732 status = be_flash_BEx(adapter, fw, &flash_cmd,
3736 /* Do not flash this ufi on BE3-R cards */
3737 if (adapter->asic_rev < 0x10)
3738 status = be_flash_BEx(adapter, fw,
3743 dev_err(&adapter->pdev->dev,
3744 "Can't load BE3 UFI on BE3R\n");
3750 if (ufi_type == UFI_TYPE2)
3751 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3752 else if (ufi_type == -1)
3755 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3758 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3762 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3768 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3770 const struct firmware *fw;
3773 if (!netif_running(adapter->netdev)) {
3774 dev_err(&adapter->pdev->dev,
3775 "Firmware load not allowed (interface is down)\n");
3779 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3783 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3785 if (lancer_chip(adapter))
3786 status = lancer_fw_download(adapter, fw);
3788 status = be_fw_download(adapter, fw);
3791 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3792 adapter->fw_on_flash);
3795 release_firmware(fw);
3799 static int be_ndo_bridge_setlink(struct net_device *dev,
3800 struct nlmsghdr *nlh)
3802 struct be_adapter *adapter = netdev_priv(dev);
3803 struct nlattr *attr, *br_spec;
3808 if (!sriov_enabled(adapter))
3811 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
3813 nla_for_each_nested(attr, br_spec, rem) {
3814 if (nla_type(attr) != IFLA_BRIDGE_MODE)
3817 mode = nla_get_u16(attr);
3818 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
3821 status = be_cmd_set_hsw_config(adapter, 0, 0,
3823 mode == BRIDGE_MODE_VEPA ?
3824 PORT_FWD_TYPE_VEPA :
3829 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
3830 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3835 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
3836 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3841 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
3842 struct net_device *dev,
3845 struct be_adapter *adapter = netdev_priv(dev);
3849 if (!sriov_enabled(adapter))
3852 /* BE and Lancer chips support VEB mode only */
3853 if (BEx_chip(adapter) || lancer_chip(adapter)) {
3854 hsw_mode = PORT_FWD_TYPE_VEB;
3856 status = be_cmd_get_hsw_config(adapter, NULL, 0,
3857 adapter->if_handle, &hsw_mode);
3862 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
3863 hsw_mode == PORT_FWD_TYPE_VEPA ?
3864 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
3867 static const struct net_device_ops be_netdev_ops = {
3868 .ndo_open = be_open,
3869 .ndo_stop = be_close,
3870 .ndo_start_xmit = be_xmit,
3871 .ndo_set_rx_mode = be_set_rx_mode,
3872 .ndo_set_mac_address = be_mac_addr_set,
3873 .ndo_change_mtu = be_change_mtu,
3874 .ndo_get_stats64 = be_get_stats64,
3875 .ndo_validate_addr = eth_validate_addr,
3876 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3877 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3878 .ndo_set_vf_mac = be_set_vf_mac,
3879 .ndo_set_vf_vlan = be_set_vf_vlan,
3880 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3881 .ndo_get_vf_config = be_get_vf_config,
3882 #ifdef CONFIG_NET_POLL_CONTROLLER
3883 .ndo_poll_controller = be_netpoll,
3885 .ndo_bridge_setlink = be_ndo_bridge_setlink,
3886 .ndo_bridge_getlink = be_ndo_bridge_getlink,
3889 static void be_netdev_init(struct net_device *netdev)
3891 struct be_adapter *adapter = netdev_priv(netdev);
3893 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3894 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3895 NETIF_F_HW_VLAN_CTAG_TX;
3896 if (be_multi_rxq(adapter))
3897 netdev->hw_features |= NETIF_F_RXHASH;
3899 netdev->features |= netdev->hw_features |
3900 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3902 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3903 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3905 netdev->priv_flags |= IFF_UNICAST_FLT;
3907 netdev->flags |= IFF_MULTICAST;
3909 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3911 netdev->netdev_ops = &be_netdev_ops;
3913 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3916 static void be_unmap_pci_bars(struct be_adapter *adapter)
3919 pci_iounmap(adapter->pdev, adapter->csr);
3921 pci_iounmap(adapter->pdev, adapter->db);
3924 static int db_bar(struct be_adapter *adapter)
3926 if (lancer_chip(adapter) || !be_physfn(adapter))
3932 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3934 if (skyhawk_chip(adapter)) {
3935 adapter->roce_db.size = 4096;
3936 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3938 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3944 static int be_map_pci_bars(struct be_adapter *adapter)
3949 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3950 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3951 SLI_INTF_IF_TYPE_SHIFT;
3953 if (BEx_chip(adapter) && be_physfn(adapter)) {
3954 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3955 if (adapter->csr == NULL)
3959 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3964 be_roce_map_pci_bars(adapter);
3968 be_unmap_pci_bars(adapter);
3972 static void be_ctrl_cleanup(struct be_adapter *adapter)
3974 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3976 be_unmap_pci_bars(adapter);
3979 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3982 mem = &adapter->rx_filter;
3984 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3988 static int be_ctrl_init(struct be_adapter *adapter)
3990 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3991 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3992 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3996 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3997 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3998 SLI_INTF_FAMILY_SHIFT;
3999 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4001 status = be_map_pci_bars(adapter);
4005 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4006 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4007 mbox_mem_alloc->size,
4008 &mbox_mem_alloc->dma,
4010 if (!mbox_mem_alloc->va) {
4012 goto unmap_pci_bars;
4014 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4015 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4016 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4017 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4019 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4020 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4021 rx_filter->size, &rx_filter->dma,
4023 if (rx_filter->va == NULL) {
4028 mutex_init(&adapter->mbox_lock);
4029 spin_lock_init(&adapter->mcc_lock);
4030 spin_lock_init(&adapter->mcc_cq_lock);
4032 init_completion(&adapter->flash_compl);
4033 pci_save_state(adapter->pdev);
4037 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4038 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4041 be_unmap_pci_bars(adapter);
4047 static void be_stats_cleanup(struct be_adapter *adapter)
4049 struct be_dma_mem *cmd = &adapter->stats_cmd;
4052 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4056 static int be_stats_init(struct be_adapter *adapter)
4058 struct be_dma_mem *cmd = &adapter->stats_cmd;
4060 if (lancer_chip(adapter))
4061 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4062 else if (BE2_chip(adapter))
4063 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4065 /* BE3 and Skyhawk */
4066 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4068 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4070 if (cmd->va == NULL)
4075 static void be_remove(struct pci_dev *pdev)
4077 struct be_adapter *adapter = pci_get_drvdata(pdev);
4082 be_roce_dev_remove(adapter);
4083 be_intr_set(adapter, false);
4085 cancel_delayed_work_sync(&adapter->func_recovery_work);
4087 unregister_netdev(adapter->netdev);
4091 /* tell fw we're done with firing cmds */
4092 be_cmd_fw_clean(adapter);
4094 be_stats_cleanup(adapter);
4096 be_ctrl_cleanup(adapter);
4098 pci_disable_pcie_error_reporting(pdev);
4100 pci_set_drvdata(pdev, NULL);
4101 pci_release_regions(pdev);
4102 pci_disable_device(pdev);
4104 free_netdev(adapter->netdev);
4107 bool be_is_wol_supported(struct be_adapter *adapter)
4109 return ((adapter->wol_cap & BE_WOL_CAP) &&
4110 !be_is_wol_excluded(adapter)) ? true : false;
4113 u32 be_get_fw_log_level(struct be_adapter *adapter)
4115 struct be_dma_mem extfat_cmd;
4116 struct be_fat_conf_params *cfgs;
4121 if (lancer_chip(adapter))
4124 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4125 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4126 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4129 if (!extfat_cmd.va) {
4130 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4135 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4137 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4138 sizeof(struct be_cmd_resp_hdr));
4139 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4140 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4141 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4144 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4150 static int be_get_initial_config(struct be_adapter *adapter)
4155 status = be_cmd_get_cntl_attributes(adapter);
4159 status = be_cmd_get_acpi_wol_cap(adapter);
4161 /* in case of a failure to get wol capabillities
4162 * check the exclusion list to determine WOL capability */
4163 if (!be_is_wol_excluded(adapter))
4164 adapter->wol_cap |= BE_WOL_CAP;
4167 if (be_is_wol_supported(adapter))
4168 adapter->wol = true;
4170 /* Must be a power of 2 or else MODULO will BUG_ON */
4171 adapter->be_get_temp_freq = 64;
4173 level = be_get_fw_log_level(adapter);
4174 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4176 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4180 static int lancer_recover_func(struct be_adapter *adapter)
4182 struct device *dev = &adapter->pdev->dev;
4185 status = lancer_test_and_set_rdy_state(adapter);
4189 if (netif_running(adapter->netdev))
4190 be_close(adapter->netdev);
4194 be_clear_all_error(adapter);
4196 status = be_setup(adapter);
4200 if (netif_running(adapter->netdev)) {
4201 status = be_open(adapter->netdev);
4206 dev_err(dev, "Error recovery successful\n");
4209 if (status == -EAGAIN)
4210 dev_err(dev, "Waiting for resource provisioning\n");
4212 dev_err(dev, "Error recovery failed\n");
4217 static void be_func_recovery_task(struct work_struct *work)
4219 struct be_adapter *adapter =
4220 container_of(work, struct be_adapter, func_recovery_work.work);
4223 be_detect_error(adapter);
4225 if (adapter->hw_error && lancer_chip(adapter)) {
4228 netif_device_detach(adapter->netdev);
4231 status = lancer_recover_func(adapter);
4233 netif_device_attach(adapter->netdev);
4236 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4237 * no need to attempt further recovery.
4239 if (!status || status == -EAGAIN)
4240 schedule_delayed_work(&adapter->func_recovery_work,
4241 msecs_to_jiffies(1000));
4244 static void be_worker(struct work_struct *work)
4246 struct be_adapter *adapter =
4247 container_of(work, struct be_adapter, work.work);
4248 struct be_rx_obj *rxo;
4249 struct be_eq_obj *eqo;
4252 /* when interrupts are not yet enabled, just reap any pending
4253 * mcc completions */
4254 if (!netif_running(adapter->netdev)) {
4256 be_process_mcc(adapter);
4261 if (!adapter->stats_cmd_sent) {
4262 if (lancer_chip(adapter))
4263 lancer_cmd_get_pport_stats(adapter,
4264 &adapter->stats_cmd);
4266 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4269 if (be_physfn(adapter) &&
4270 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4271 be_cmd_get_die_temperature(adapter);
4273 for_all_rx_queues(adapter, rxo, i) {
4274 if (rxo->rx_post_starved) {
4275 rxo->rx_post_starved = false;
4276 be_post_rx_frags(rxo, GFP_KERNEL);
4280 for_all_evt_queues(adapter, eqo, i)
4281 be_eqd_update(adapter, eqo);
4284 adapter->work_counter++;
4285 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4288 /* If any VFs are already enabled don't FLR the PF */
4289 static bool be_reset_required(struct be_adapter *adapter)
4291 return pci_num_vf(adapter->pdev) ? false : true;
4294 static char *mc_name(struct be_adapter *adapter)
4296 if (adapter->function_mode & FLEX10_MODE)
4298 else if (adapter->function_mode & VNIC_MODE)
4300 else if (adapter->function_mode & UMC_ENABLED)
4306 static inline char *func_name(struct be_adapter *adapter)
4308 return be_physfn(adapter) ? "PF" : "VF";
4311 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4314 struct be_adapter *adapter;
4315 struct net_device *netdev;
4318 status = pci_enable_device(pdev);
4322 status = pci_request_regions(pdev, DRV_NAME);
4325 pci_set_master(pdev);
4327 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4328 if (netdev == NULL) {
4332 adapter = netdev_priv(netdev);
4333 adapter->pdev = pdev;
4334 pci_set_drvdata(pdev, adapter);
4335 adapter->netdev = netdev;
4336 SET_NETDEV_DEV(netdev, &pdev->dev);
4338 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4340 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4342 dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4345 netdev->features |= NETIF_F_HIGHDMA;
4347 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4349 status = dma_set_coherent_mask(&pdev->dev,
4352 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4357 status = pci_enable_pcie_error_reporting(pdev);
4359 dev_info(&pdev->dev, "Could not use PCIe error reporting\n");
4361 status = be_ctrl_init(adapter);
4365 /* sync up with fw's ready state */
4366 if (be_physfn(adapter)) {
4367 status = be_fw_wait_ready(adapter);
4372 if (be_reset_required(adapter)) {
4373 status = be_cmd_reset_function(adapter);
4377 /* Wait for interrupts to quiesce after an FLR */
4381 /* Allow interrupts for other ULPs running on NIC function */
4382 be_intr_set(adapter, true);
4384 /* tell fw we're ready to fire cmds */
4385 status = be_cmd_fw_init(adapter);
4389 status = be_stats_init(adapter);
4393 status = be_get_initial_config(adapter);
4397 INIT_DELAYED_WORK(&adapter->work, be_worker);
4398 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4399 adapter->rx_fc = adapter->tx_fc = true;
4401 status = be_setup(adapter);
4405 be_netdev_init(netdev);
4406 status = register_netdev(netdev);
4410 be_roce_dev_add(adapter);
4412 schedule_delayed_work(&adapter->func_recovery_work,
4413 msecs_to_jiffies(1000));
4415 be_cmd_query_port_name(adapter, &port_name);
4417 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4418 func_name(adapter), mc_name(adapter), port_name);
4425 be_stats_cleanup(adapter);
4427 be_ctrl_cleanup(adapter);
4429 free_netdev(netdev);
4430 pci_set_drvdata(pdev, NULL);
4432 pci_release_regions(pdev);
4434 pci_disable_device(pdev);
4436 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4440 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4442 struct be_adapter *adapter = pci_get_drvdata(pdev);
4443 struct net_device *netdev = adapter->netdev;
4446 be_setup_wol(adapter, true);
4448 cancel_delayed_work_sync(&adapter->func_recovery_work);
4450 netif_device_detach(netdev);
4451 if (netif_running(netdev)) {
4458 pci_save_state(pdev);
4459 pci_disable_device(pdev);
4460 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4464 static int be_resume(struct pci_dev *pdev)
4467 struct be_adapter *adapter = pci_get_drvdata(pdev);
4468 struct net_device *netdev = adapter->netdev;
4470 netif_device_detach(netdev);
4472 status = pci_enable_device(pdev);
4476 pci_set_power_state(pdev, PCI_D0);
4477 pci_restore_state(pdev);
4479 status = be_fw_wait_ready(adapter);
4483 /* tell fw we're ready to fire cmds */
4484 status = be_cmd_fw_init(adapter);
4489 if (netif_running(netdev)) {
4495 schedule_delayed_work(&adapter->func_recovery_work,
4496 msecs_to_jiffies(1000));
4497 netif_device_attach(netdev);
4500 be_setup_wol(adapter, false);
4506 * An FLR will stop BE from DMAing any data.
4508 static void be_shutdown(struct pci_dev *pdev)
4510 struct be_adapter *adapter = pci_get_drvdata(pdev);
4515 cancel_delayed_work_sync(&adapter->work);
4516 cancel_delayed_work_sync(&adapter->func_recovery_work);
4518 netif_device_detach(adapter->netdev);
4520 be_cmd_reset_function(adapter);
4522 pci_disable_device(pdev);
4525 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4526 pci_channel_state_t state)
4528 struct be_adapter *adapter = pci_get_drvdata(pdev);
4529 struct net_device *netdev = adapter->netdev;
4531 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4533 if (!adapter->eeh_error) {
4534 adapter->eeh_error = true;
4536 cancel_delayed_work_sync(&adapter->func_recovery_work);
4539 netif_device_detach(netdev);
4540 if (netif_running(netdev))
4547 if (state == pci_channel_io_perm_failure)
4548 return PCI_ERS_RESULT_DISCONNECT;
4550 pci_disable_device(pdev);
4552 /* The error could cause the FW to trigger a flash debug dump.
4553 * Resetting the card while flash dump is in progress
4554 * can cause it not to recover; wait for it to finish.
4555 * Wait only for first function as it is needed only once per
4558 if (pdev->devfn == 0)
4561 return PCI_ERS_RESULT_NEED_RESET;
4564 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4566 struct be_adapter *adapter = pci_get_drvdata(pdev);
4569 dev_info(&adapter->pdev->dev, "EEH reset\n");
4571 status = pci_enable_device(pdev);
4573 return PCI_ERS_RESULT_DISCONNECT;
4575 pci_set_master(pdev);
4576 pci_set_power_state(pdev, PCI_D0);
4577 pci_restore_state(pdev);
4579 /* Check if card is ok and fw is ready */
4580 dev_info(&adapter->pdev->dev,
4581 "Waiting for FW to be ready after EEH reset\n");
4582 status = be_fw_wait_ready(adapter);
4584 return PCI_ERS_RESULT_DISCONNECT;
4586 pci_cleanup_aer_uncorrect_error_status(pdev);
4587 be_clear_all_error(adapter);
4588 return PCI_ERS_RESULT_RECOVERED;
4591 static void be_eeh_resume(struct pci_dev *pdev)
4594 struct be_adapter *adapter = pci_get_drvdata(pdev);
4595 struct net_device *netdev = adapter->netdev;
4597 dev_info(&adapter->pdev->dev, "EEH resume\n");
4599 pci_save_state(pdev);
4601 status = be_cmd_reset_function(adapter);
4605 /* tell fw we're ready to fire cmds */
4606 status = be_cmd_fw_init(adapter);
4610 status = be_setup(adapter);
4614 if (netif_running(netdev)) {
4615 status = be_open(netdev);
4620 schedule_delayed_work(&adapter->func_recovery_work,
4621 msecs_to_jiffies(1000));
4622 netif_device_attach(netdev);
4625 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4628 static const struct pci_error_handlers be_eeh_handlers = {
4629 .error_detected = be_eeh_err_detected,
4630 .slot_reset = be_eeh_reset,
4631 .resume = be_eeh_resume,
4634 static struct pci_driver be_driver = {
4636 .id_table = be_dev_ids,
4638 .remove = be_remove,
4639 .suspend = be_suspend,
4640 .resume = be_resume,
4641 .shutdown = be_shutdown,
4642 .err_handler = &be_eeh_handlers
4645 static int __init be_init_module(void)
4647 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4648 rx_frag_size != 2048) {
4649 printk(KERN_WARNING DRV_NAME
4650 " : Module param rx_frag_size must be 2048/4096/8192."
4652 rx_frag_size = 2048;
4655 return pci_register_driver(&be_driver);
4657 module_init(be_init_module);
4659 static void __exit be_exit_module(void)
4661 pci_unregister_driver(&be_driver);
4663 module_exit(be_exit_module);