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, SH-R ASICs have 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 short packets (<= 32 bytes) to a 36-byte length.
862 if (unlikely(!BEx_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,
1017 /* Set to VLAN promisc mode as setting VLAN filter failed */
1018 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
1019 goto set_vlan_promisc;
1020 dev_err(&adapter->pdev->dev,
1021 "Setting HW VLAN filtering failed.\n");
1023 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1024 /* hw VLAN filtering re-enabled. */
1025 status = be_cmd_rx_filter(adapter,
1026 BE_FLAGS_VLAN_PROMISC, OFF);
1028 dev_info(&adapter->pdev->dev,
1029 "Disabling VLAN Promiscuous mode.\n");
1030 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1031 dev_info(&adapter->pdev->dev,
1032 "Re-Enabling HW VLAN filtering\n");
1040 dev_warn(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
1042 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1044 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1045 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering\n");
1046 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1048 dev_err(&adapter->pdev->dev,
1049 "Failed to enable VLAN Promiscuous mode.\n");
1053 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1055 struct be_adapter *adapter = netdev_priv(netdev);
1059 /* Packets with VID 0 are always received by Lancer by default */
1060 if (lancer_chip(adapter) && vid == 0)
1063 adapter->vlan_tag[vid] = 1;
1064 if (adapter->vlans_added <= (be_max_vlans(adapter) + 1))
1065 status = be_vid_config(adapter);
1068 adapter->vlans_added++;
1070 adapter->vlan_tag[vid] = 0;
1075 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1077 struct be_adapter *adapter = netdev_priv(netdev);
1080 /* Packets with VID 0 are always received by Lancer by default */
1081 if (lancer_chip(adapter) && vid == 0)
1084 adapter->vlan_tag[vid] = 0;
1085 if (adapter->vlans_added <= be_max_vlans(adapter))
1086 status = be_vid_config(adapter);
1089 adapter->vlans_added--;
1091 adapter->vlan_tag[vid] = 1;
1096 static void be_set_rx_mode(struct net_device *netdev)
1098 struct be_adapter *adapter = netdev_priv(netdev);
1101 if (netdev->flags & IFF_PROMISC) {
1102 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1103 adapter->promiscuous = true;
1107 /* BE was previously in promiscuous mode; disable it */
1108 if (adapter->promiscuous) {
1109 adapter->promiscuous = false;
1110 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1112 if (adapter->vlans_added)
1113 be_vid_config(adapter);
1116 /* Enable multicast promisc if num configured exceeds what we support */
1117 if (netdev->flags & IFF_ALLMULTI ||
1118 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1119 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1123 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1124 struct netdev_hw_addr *ha;
1125 int i = 1; /* First slot is claimed by the Primary MAC */
1127 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1128 be_cmd_pmac_del(adapter, adapter->if_handle,
1129 adapter->pmac_id[i], 0);
1132 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1133 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1134 adapter->promiscuous = true;
1138 netdev_for_each_uc_addr(ha, adapter->netdev) {
1139 adapter->uc_macs++; /* First slot is for Primary MAC */
1140 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1142 &adapter->pmac_id[adapter->uc_macs], 0);
1146 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1148 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1150 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1151 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1152 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1158 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1160 struct be_adapter *adapter = netdev_priv(netdev);
1161 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1164 if (!sriov_enabled(adapter))
1167 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1170 if (BEx_chip(adapter)) {
1171 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1174 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1175 &vf_cfg->pmac_id, vf + 1);
1177 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1182 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1185 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1190 static int be_get_vf_config(struct net_device *netdev, int vf,
1191 struct ifla_vf_info *vi)
1193 struct be_adapter *adapter = netdev_priv(netdev);
1194 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1196 if (!sriov_enabled(adapter))
1199 if (vf >= adapter->num_vfs)
1203 vi->tx_rate = vf_cfg->tx_rate;
1204 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1205 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1206 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1211 static int be_set_vf_vlan(struct net_device *netdev,
1212 int vf, u16 vlan, u8 qos)
1214 struct be_adapter *adapter = netdev_priv(netdev);
1215 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1218 if (!sriov_enabled(adapter))
1221 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1225 vlan |= qos << VLAN_PRIO_SHIFT;
1226 if (vf_cfg->vlan_tag != vlan) {
1227 /* If this is new value, program it. Else skip. */
1228 vf_cfg->vlan_tag = vlan;
1229 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1230 vf_cfg->if_handle, 0);
1233 /* Reset Transparent Vlan Tagging. */
1234 vf_cfg->vlan_tag = 0;
1235 vlan = vf_cfg->def_vid;
1236 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1237 vf_cfg->if_handle, 0);
1242 dev_info(&adapter->pdev->dev,
1243 "VLAN %d config on VF %d failed\n", vlan, vf);
1247 static int be_set_vf_tx_rate(struct net_device *netdev,
1250 struct be_adapter *adapter = netdev_priv(netdev);
1253 if (!sriov_enabled(adapter))
1256 if (vf >= adapter->num_vfs)
1259 if (rate < 100 || rate > 10000) {
1260 dev_err(&adapter->pdev->dev,
1261 "tx rate must be between 100 and 10000 Mbps\n");
1265 if (lancer_chip(adapter))
1266 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1268 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1271 dev_err(&adapter->pdev->dev,
1272 "tx rate %d on VF %d failed\n", rate, vf);
1274 adapter->vf_cfg[vf].tx_rate = rate;
1278 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1280 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1281 ulong now = jiffies;
1282 ulong delta = now - stats->rx_jiffies;
1284 unsigned int start, eqd;
1286 if (!eqo->enable_aic) {
1291 if (eqo->idx >= adapter->num_rx_qs)
1294 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1296 /* Wrapped around */
1297 if (time_before(now, stats->rx_jiffies)) {
1298 stats->rx_jiffies = now;
1302 /* Update once a second */
1307 start = u64_stats_fetch_begin_bh(&stats->sync);
1308 pkts = stats->rx_pkts;
1309 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1311 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1312 stats->rx_pkts_prev = pkts;
1313 stats->rx_jiffies = now;
1314 eqd = (stats->rx_pps / 110000) << 3;
1315 eqd = min(eqd, eqo->max_eqd);
1316 eqd = max(eqd, eqo->min_eqd);
1321 if (eqd != eqo->cur_eqd) {
1322 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1327 static void be_rx_stats_update(struct be_rx_obj *rxo,
1328 struct be_rx_compl_info *rxcp)
1330 struct be_rx_stats *stats = rx_stats(rxo);
1332 u64_stats_update_begin(&stats->sync);
1334 stats->rx_bytes += rxcp->pkt_size;
1336 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1337 stats->rx_mcast_pkts++;
1339 stats->rx_compl_err++;
1340 u64_stats_update_end(&stats->sync);
1343 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1345 /* L4 checksum is not reliable for non TCP/UDP packets.
1346 * Also ignore ipcksm for ipv6 pkts */
1347 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1348 (rxcp->ip_csum || rxcp->ipv6);
1351 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1354 struct be_adapter *adapter = rxo->adapter;
1355 struct be_rx_page_info *rx_page_info;
1356 struct be_queue_info *rxq = &rxo->q;
1358 rx_page_info = &rxo->page_info_tbl[frag_idx];
1359 BUG_ON(!rx_page_info->page);
1361 if (rx_page_info->last_page_user) {
1362 dma_unmap_page(&adapter->pdev->dev,
1363 dma_unmap_addr(rx_page_info, bus),
1364 adapter->big_page_size, DMA_FROM_DEVICE);
1365 rx_page_info->last_page_user = false;
1368 atomic_dec(&rxq->used);
1369 return rx_page_info;
1372 /* Throwaway the data in the Rx completion */
1373 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1374 struct be_rx_compl_info *rxcp)
1376 struct be_queue_info *rxq = &rxo->q;
1377 struct be_rx_page_info *page_info;
1378 u16 i, num_rcvd = rxcp->num_rcvd;
1380 for (i = 0; i < num_rcvd; i++) {
1381 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1382 put_page(page_info->page);
1383 memset(page_info, 0, sizeof(*page_info));
1384 index_inc(&rxcp->rxq_idx, rxq->len);
1389 * skb_fill_rx_data forms a complete skb for an ether frame
1390 * indicated by rxcp.
1392 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1393 struct be_rx_compl_info *rxcp)
1395 struct be_queue_info *rxq = &rxo->q;
1396 struct be_rx_page_info *page_info;
1398 u16 hdr_len, curr_frag_len, remaining;
1401 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1402 start = page_address(page_info->page) + page_info->page_offset;
1405 /* Copy data in the first descriptor of this completion */
1406 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1408 skb->len = curr_frag_len;
1409 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1410 memcpy(skb->data, start, curr_frag_len);
1411 /* Complete packet has now been moved to data */
1412 put_page(page_info->page);
1414 skb->tail += curr_frag_len;
1417 memcpy(skb->data, start, hdr_len);
1418 skb_shinfo(skb)->nr_frags = 1;
1419 skb_frag_set_page(skb, 0, page_info->page);
1420 skb_shinfo(skb)->frags[0].page_offset =
1421 page_info->page_offset + hdr_len;
1422 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1423 skb->data_len = curr_frag_len - hdr_len;
1424 skb->truesize += rx_frag_size;
1425 skb->tail += hdr_len;
1427 page_info->page = NULL;
1429 if (rxcp->pkt_size <= rx_frag_size) {
1430 BUG_ON(rxcp->num_rcvd != 1);
1434 /* More frags present for this completion */
1435 index_inc(&rxcp->rxq_idx, rxq->len);
1436 remaining = rxcp->pkt_size - curr_frag_len;
1437 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1438 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1439 curr_frag_len = min(remaining, rx_frag_size);
1441 /* Coalesce all frags from the same physical page in one slot */
1442 if (page_info->page_offset == 0) {
1445 skb_frag_set_page(skb, j, page_info->page);
1446 skb_shinfo(skb)->frags[j].page_offset =
1447 page_info->page_offset;
1448 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1449 skb_shinfo(skb)->nr_frags++;
1451 put_page(page_info->page);
1454 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1455 skb->len += curr_frag_len;
1456 skb->data_len += curr_frag_len;
1457 skb->truesize += rx_frag_size;
1458 remaining -= curr_frag_len;
1459 index_inc(&rxcp->rxq_idx, rxq->len);
1460 page_info->page = NULL;
1462 BUG_ON(j > MAX_SKB_FRAGS);
1465 /* Process the RX completion indicated by rxcp when GRO is disabled */
1466 static void be_rx_compl_process(struct be_rx_obj *rxo,
1467 struct be_rx_compl_info *rxcp)
1469 struct be_adapter *adapter = rxo->adapter;
1470 struct net_device *netdev = adapter->netdev;
1471 struct sk_buff *skb;
1473 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1474 if (unlikely(!skb)) {
1475 rx_stats(rxo)->rx_drops_no_skbs++;
1476 be_rx_compl_discard(rxo, rxcp);
1480 skb_fill_rx_data(rxo, skb, rxcp);
1482 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1483 skb->ip_summed = CHECKSUM_UNNECESSARY;
1485 skb_checksum_none_assert(skb);
1487 skb->protocol = eth_type_trans(skb, netdev);
1488 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1489 if (netdev->features & NETIF_F_RXHASH)
1490 skb->rxhash = rxcp->rss_hash;
1494 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1496 netif_receive_skb(skb);
1499 /* Process the RX completion indicated by rxcp when GRO is enabled */
1500 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1501 struct napi_struct *napi,
1502 struct be_rx_compl_info *rxcp)
1504 struct be_adapter *adapter = rxo->adapter;
1505 struct be_rx_page_info *page_info;
1506 struct sk_buff *skb = NULL;
1507 struct be_queue_info *rxq = &rxo->q;
1508 u16 remaining, curr_frag_len;
1511 skb = napi_get_frags(napi);
1513 be_rx_compl_discard(rxo, rxcp);
1517 remaining = rxcp->pkt_size;
1518 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1519 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1521 curr_frag_len = min(remaining, rx_frag_size);
1523 /* Coalesce all frags from the same physical page in one slot */
1524 if (i == 0 || page_info->page_offset == 0) {
1525 /* First frag or Fresh page */
1527 skb_frag_set_page(skb, j, page_info->page);
1528 skb_shinfo(skb)->frags[j].page_offset =
1529 page_info->page_offset;
1530 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1532 put_page(page_info->page);
1534 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1535 skb->truesize += rx_frag_size;
1536 remaining -= curr_frag_len;
1537 index_inc(&rxcp->rxq_idx, rxq->len);
1538 memset(page_info, 0, sizeof(*page_info));
1540 BUG_ON(j > MAX_SKB_FRAGS);
1542 skb_shinfo(skb)->nr_frags = j + 1;
1543 skb->len = rxcp->pkt_size;
1544 skb->data_len = rxcp->pkt_size;
1545 skb->ip_summed = CHECKSUM_UNNECESSARY;
1546 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1547 if (adapter->netdev->features & NETIF_F_RXHASH)
1548 skb->rxhash = rxcp->rss_hash;
1551 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1553 napi_gro_frags(napi);
1556 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1557 struct be_rx_compl_info *rxcp)
1560 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1561 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1562 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1563 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1564 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1566 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1568 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1570 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1572 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1574 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1576 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1578 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1580 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1582 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1585 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1588 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1589 struct be_rx_compl_info *rxcp)
1592 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1593 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1594 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1595 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1596 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1598 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1600 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1602 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1604 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1606 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1608 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1610 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1612 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1614 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1617 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1618 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1622 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1624 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1625 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1626 struct be_adapter *adapter = rxo->adapter;
1628 /* For checking the valid bit it is Ok to use either definition as the
1629 * valid bit is at the same position in both v0 and v1 Rx compl */
1630 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1634 be_dws_le_to_cpu(compl, sizeof(*compl));
1636 if (adapter->be3_native)
1637 be_parse_rx_compl_v1(compl, rxcp);
1639 be_parse_rx_compl_v0(compl, rxcp);
1645 /* vlanf could be wrongly set in some cards.
1646 * ignore if vtm is not set */
1647 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1650 if (!lancer_chip(adapter))
1651 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1653 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1654 !adapter->vlan_tag[rxcp->vlan_tag])
1658 /* As the compl has been parsed, reset it; we wont touch it again */
1659 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1661 queue_tail_inc(&rxo->cq);
1665 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1667 u32 order = get_order(size);
1671 return alloc_pages(gfp, order);
1675 * Allocate a page, split it to fragments of size rx_frag_size and post as
1676 * receive buffers to BE
1678 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1680 struct be_adapter *adapter = rxo->adapter;
1681 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1682 struct be_queue_info *rxq = &rxo->q;
1683 struct page *pagep = NULL;
1684 struct be_eth_rx_d *rxd;
1685 u64 page_dmaaddr = 0, frag_dmaaddr;
1686 u32 posted, page_offset = 0;
1688 page_info = &rxo->page_info_tbl[rxq->head];
1689 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1691 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1692 if (unlikely(!pagep)) {
1693 rx_stats(rxo)->rx_post_fail++;
1696 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1697 0, adapter->big_page_size,
1699 page_info->page_offset = 0;
1702 page_info->page_offset = page_offset + rx_frag_size;
1704 page_offset = page_info->page_offset;
1705 page_info->page = pagep;
1706 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1707 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1709 rxd = queue_head_node(rxq);
1710 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1711 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1713 /* Any space left in the current big page for another frag? */
1714 if ((page_offset + rx_frag_size + rx_frag_size) >
1715 adapter->big_page_size) {
1717 page_info->last_page_user = true;
1720 prev_page_info = page_info;
1721 queue_head_inc(rxq);
1722 page_info = &rxo->page_info_tbl[rxq->head];
1725 prev_page_info->last_page_user = true;
1728 atomic_add(posted, &rxq->used);
1729 be_rxq_notify(adapter, rxq->id, posted);
1730 } else if (atomic_read(&rxq->used) == 0) {
1731 /* Let be_worker replenish when memory is available */
1732 rxo->rx_post_starved = true;
1736 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1738 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1740 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1744 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1746 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1748 queue_tail_inc(tx_cq);
1752 static u16 be_tx_compl_process(struct be_adapter *adapter,
1753 struct be_tx_obj *txo, u16 last_index)
1755 struct be_queue_info *txq = &txo->q;
1756 struct be_eth_wrb *wrb;
1757 struct sk_buff **sent_skbs = txo->sent_skb_list;
1758 struct sk_buff *sent_skb;
1759 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1760 bool unmap_skb_hdr = true;
1762 sent_skb = sent_skbs[txq->tail];
1764 sent_skbs[txq->tail] = NULL;
1766 /* skip header wrb */
1767 queue_tail_inc(txq);
1770 cur_index = txq->tail;
1771 wrb = queue_tail_node(txq);
1772 unmap_tx_frag(&adapter->pdev->dev, wrb,
1773 (unmap_skb_hdr && skb_headlen(sent_skb)));
1774 unmap_skb_hdr = false;
1777 queue_tail_inc(txq);
1778 } while (cur_index != last_index);
1780 kfree_skb(sent_skb);
1784 /* Return the number of events in the event queue */
1785 static inline int events_get(struct be_eq_obj *eqo)
1787 struct be_eq_entry *eqe;
1791 eqe = queue_tail_node(&eqo->q);
1798 queue_tail_inc(&eqo->q);
1804 /* Leaves the EQ is disarmed state */
1805 static void be_eq_clean(struct be_eq_obj *eqo)
1807 int num = events_get(eqo);
1809 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1812 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1814 struct be_rx_page_info *page_info;
1815 struct be_queue_info *rxq = &rxo->q;
1816 struct be_queue_info *rx_cq = &rxo->cq;
1817 struct be_rx_compl_info *rxcp;
1818 struct be_adapter *adapter = rxo->adapter;
1822 /* Consume pending rx completions.
1823 * Wait for the flush completion (identified by zero num_rcvd)
1824 * to arrive. Notify CQ even when there are no more CQ entries
1825 * for HW to flush partially coalesced CQ entries.
1826 * In Lancer, there is no need to wait for flush compl.
1829 rxcp = be_rx_compl_get(rxo);
1831 if (lancer_chip(adapter))
1834 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1835 dev_warn(&adapter->pdev->dev,
1836 "did not receive flush compl\n");
1839 be_cq_notify(adapter, rx_cq->id, true, 0);
1842 be_rx_compl_discard(rxo, rxcp);
1843 be_cq_notify(adapter, rx_cq->id, false, 1);
1844 if (rxcp->num_rcvd == 0)
1849 /* After cleanup, leave the CQ in unarmed state */
1850 be_cq_notify(adapter, rx_cq->id, false, 0);
1852 /* Then free posted rx buffers that were not used */
1853 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1854 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1855 page_info = get_rx_page_info(rxo, tail);
1856 put_page(page_info->page);
1857 memset(page_info, 0, sizeof(*page_info));
1859 BUG_ON(atomic_read(&rxq->used));
1860 rxq->tail = rxq->head = 0;
1863 static void be_tx_compl_clean(struct be_adapter *adapter)
1865 struct be_tx_obj *txo;
1866 struct be_queue_info *txq;
1867 struct be_eth_tx_compl *txcp;
1868 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1869 struct sk_buff *sent_skb;
1871 int i, pending_txqs;
1873 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1875 pending_txqs = adapter->num_tx_qs;
1877 for_all_tx_queues(adapter, txo, i) {
1879 while ((txcp = be_tx_compl_get(&txo->cq))) {
1881 AMAP_GET_BITS(struct amap_eth_tx_compl,
1883 num_wrbs += be_tx_compl_process(adapter, txo,
1888 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1889 atomic_sub(num_wrbs, &txq->used);
1893 if (atomic_read(&txq->used) == 0)
1897 if (pending_txqs == 0 || ++timeo > 200)
1903 for_all_tx_queues(adapter, txo, i) {
1905 if (atomic_read(&txq->used))
1906 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1907 atomic_read(&txq->used));
1909 /* free posted tx for which compls will never arrive */
1910 while (atomic_read(&txq->used)) {
1911 sent_skb = txo->sent_skb_list[txq->tail];
1912 end_idx = txq->tail;
1913 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1915 index_adv(&end_idx, num_wrbs - 1, txq->len);
1916 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1917 atomic_sub(num_wrbs, &txq->used);
1922 static void be_evt_queues_destroy(struct be_adapter *adapter)
1924 struct be_eq_obj *eqo;
1927 for_all_evt_queues(adapter, eqo, i) {
1928 if (eqo->q.created) {
1930 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1931 netif_napi_del(&eqo->napi);
1933 be_queue_free(adapter, &eqo->q);
1937 static int be_evt_queues_create(struct be_adapter *adapter)
1939 struct be_queue_info *eq;
1940 struct be_eq_obj *eqo;
1943 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
1944 adapter->cfg_num_qs);
1946 for_all_evt_queues(adapter, eqo, i) {
1947 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
1949 eqo->adapter = adapter;
1950 eqo->tx_budget = BE_TX_BUDGET;
1952 eqo->max_eqd = BE_MAX_EQD;
1953 eqo->enable_aic = true;
1956 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1957 sizeof(struct be_eq_entry));
1961 rc = be_cmd_eq_create(adapter, eqo);
1968 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1970 struct be_queue_info *q;
1972 q = &adapter->mcc_obj.q;
1974 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1975 be_queue_free(adapter, q);
1977 q = &adapter->mcc_obj.cq;
1979 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1980 be_queue_free(adapter, q);
1983 /* Must be called only after TX qs are created as MCC shares TX EQ */
1984 static int be_mcc_queues_create(struct be_adapter *adapter)
1986 struct be_queue_info *q, *cq;
1988 cq = &adapter->mcc_obj.cq;
1989 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1990 sizeof(struct be_mcc_compl)))
1993 /* Use the default EQ for MCC completions */
1994 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1997 q = &adapter->mcc_obj.q;
1998 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1999 goto mcc_cq_destroy;
2001 if (be_cmd_mccq_create(adapter, q, cq))
2007 be_queue_free(adapter, q);
2009 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2011 be_queue_free(adapter, cq);
2016 static void be_tx_queues_destroy(struct be_adapter *adapter)
2018 struct be_queue_info *q;
2019 struct be_tx_obj *txo;
2022 for_all_tx_queues(adapter, txo, i) {
2025 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2026 be_queue_free(adapter, q);
2030 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2031 be_queue_free(adapter, q);
2035 static int be_tx_qs_create(struct be_adapter *adapter)
2037 struct be_queue_info *cq, *eq;
2038 struct be_tx_obj *txo;
2041 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2043 for_all_tx_queues(adapter, txo, i) {
2045 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2046 sizeof(struct be_eth_tx_compl));
2050 /* If num_evt_qs is less than num_tx_qs, then more than
2051 * one txq share an eq
2053 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2054 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2058 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2059 sizeof(struct be_eth_wrb));
2063 status = be_cmd_txq_create(adapter, txo);
2068 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2069 adapter->num_tx_qs);
2073 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2075 struct be_queue_info *q;
2076 struct be_rx_obj *rxo;
2079 for_all_rx_queues(adapter, rxo, i) {
2082 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2083 be_queue_free(adapter, q);
2087 static int be_rx_cqs_create(struct be_adapter *adapter)
2089 struct be_queue_info *eq, *cq;
2090 struct be_rx_obj *rxo;
2093 /* We can create as many RSS rings as there are EQs. */
2094 adapter->num_rx_qs = adapter->num_evt_qs;
2096 /* We'll use RSS only if atleast 2 RSS rings are supported.
2097 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2099 if (adapter->num_rx_qs > 1)
2100 adapter->num_rx_qs++;
2102 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2103 for_all_rx_queues(adapter, rxo, i) {
2104 rxo->adapter = adapter;
2106 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2107 sizeof(struct be_eth_rx_compl));
2111 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2112 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2117 dev_info(&adapter->pdev->dev,
2118 "created %d RSS queue(s) and 1 default RX queue\n",
2119 adapter->num_rx_qs - 1);
2123 static irqreturn_t be_intx(int irq, void *dev)
2125 struct be_eq_obj *eqo = dev;
2126 struct be_adapter *adapter = eqo->adapter;
2129 /* IRQ is not expected when NAPI is scheduled as the EQ
2130 * will not be armed.
2131 * But, this can happen on Lancer INTx where it takes
2132 * a while to de-assert INTx or in BE2 where occasionaly
2133 * an interrupt may be raised even when EQ is unarmed.
2134 * If NAPI is already scheduled, then counting & notifying
2135 * events will orphan them.
2137 if (napi_schedule_prep(&eqo->napi)) {
2138 num_evts = events_get(eqo);
2139 __napi_schedule(&eqo->napi);
2141 eqo->spurious_intr = 0;
2143 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2145 /* Return IRQ_HANDLED only for the the first spurious intr
2146 * after a valid intr to stop the kernel from branding
2147 * this irq as a bad one!
2149 if (num_evts || eqo->spurious_intr++ == 0)
2155 static irqreturn_t be_msix(int irq, void *dev)
2157 struct be_eq_obj *eqo = dev;
2159 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2160 napi_schedule(&eqo->napi);
2164 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2166 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2169 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2172 struct be_adapter *adapter = rxo->adapter;
2173 struct be_queue_info *rx_cq = &rxo->cq;
2174 struct be_rx_compl_info *rxcp;
2177 for (work_done = 0; work_done < budget; work_done++) {
2178 rxcp = be_rx_compl_get(rxo);
2182 /* Is it a flush compl that has no data */
2183 if (unlikely(rxcp->num_rcvd == 0))
2186 /* Discard compl with partial DMA Lancer B0 */
2187 if (unlikely(!rxcp->pkt_size)) {
2188 be_rx_compl_discard(rxo, rxcp);
2192 /* On BE drop pkts that arrive due to imperfect filtering in
2193 * promiscuous mode on some skews
2195 if (unlikely(rxcp->port != adapter->port_num &&
2196 !lancer_chip(adapter))) {
2197 be_rx_compl_discard(rxo, rxcp);
2202 be_rx_compl_process_gro(rxo, napi, rxcp);
2204 be_rx_compl_process(rxo, rxcp);
2206 be_rx_stats_update(rxo, rxcp);
2210 be_cq_notify(adapter, rx_cq->id, true, work_done);
2212 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2213 be_post_rx_frags(rxo, GFP_ATOMIC);
2219 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2220 int budget, int idx)
2222 struct be_eth_tx_compl *txcp;
2223 int num_wrbs = 0, work_done;
2225 for (work_done = 0; work_done < budget; work_done++) {
2226 txcp = be_tx_compl_get(&txo->cq);
2229 num_wrbs += be_tx_compl_process(adapter, txo,
2230 AMAP_GET_BITS(struct amap_eth_tx_compl,
2235 be_cq_notify(adapter, txo->cq.id, true, work_done);
2236 atomic_sub(num_wrbs, &txo->q.used);
2238 /* As Tx wrbs have been freed up, wake up netdev queue
2239 * if it was stopped due to lack of tx wrbs. */
2240 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2241 atomic_read(&txo->q.used) < txo->q.len / 2) {
2242 netif_wake_subqueue(adapter->netdev, idx);
2245 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2246 tx_stats(txo)->tx_compl += work_done;
2247 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2249 return (work_done < budget); /* Done */
2252 int be_poll(struct napi_struct *napi, int budget)
2254 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2255 struct be_adapter *adapter = eqo->adapter;
2256 int max_work = 0, work, i, num_evts;
2259 num_evts = events_get(eqo);
2261 /* Process all TXQs serviced by this EQ */
2262 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2263 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2269 /* This loop will iterate twice for EQ0 in which
2270 * completions of the last RXQ (default one) are also processed
2271 * For other EQs the loop iterates only once
2273 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2274 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2275 max_work = max(work, max_work);
2278 if (is_mcc_eqo(eqo))
2279 be_process_mcc(adapter);
2281 if (max_work < budget) {
2282 napi_complete(napi);
2283 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2285 /* As we'll continue in polling mode, count and clear events */
2286 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2291 void be_detect_error(struct be_adapter *adapter)
2293 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2294 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2297 if (be_hw_error(adapter))
2300 if (lancer_chip(adapter)) {
2301 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2302 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2303 sliport_err1 = ioread32(adapter->db +
2304 SLIPORT_ERROR1_OFFSET);
2305 sliport_err2 = ioread32(adapter->db +
2306 SLIPORT_ERROR2_OFFSET);
2309 pci_read_config_dword(adapter->pdev,
2310 PCICFG_UE_STATUS_LOW, &ue_lo);
2311 pci_read_config_dword(adapter->pdev,
2312 PCICFG_UE_STATUS_HIGH, &ue_hi);
2313 pci_read_config_dword(adapter->pdev,
2314 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2315 pci_read_config_dword(adapter->pdev,
2316 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2318 ue_lo = (ue_lo & ~ue_lo_mask);
2319 ue_hi = (ue_hi & ~ue_hi_mask);
2322 /* On certain platforms BE hardware can indicate spurious UEs.
2323 * Allow the h/w to stop working completely in case of a real UE.
2324 * Hence not setting the hw_error for UE detection.
2326 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2327 adapter->hw_error = true;
2328 dev_err(&adapter->pdev->dev,
2329 "Error detected in the card\n");
2332 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2333 dev_err(&adapter->pdev->dev,
2334 "ERR: sliport status 0x%x\n", sliport_status);
2335 dev_err(&adapter->pdev->dev,
2336 "ERR: sliport error1 0x%x\n", sliport_err1);
2337 dev_err(&adapter->pdev->dev,
2338 "ERR: sliport error2 0x%x\n", sliport_err2);
2342 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2344 dev_err(&adapter->pdev->dev,
2345 "UE: %s bit set\n", ue_status_low_desc[i]);
2350 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2352 dev_err(&adapter->pdev->dev,
2353 "UE: %s bit set\n", ue_status_hi_desc[i]);
2359 static void be_msix_disable(struct be_adapter *adapter)
2361 if (msix_enabled(adapter)) {
2362 pci_disable_msix(adapter->pdev);
2363 adapter->num_msix_vec = 0;
2364 adapter->num_msix_roce_vec = 0;
2368 static int be_msix_enable(struct be_adapter *adapter)
2370 int i, status, num_vec;
2371 struct device *dev = &adapter->pdev->dev;
2373 /* If RoCE is supported, program the max number of NIC vectors that
2374 * may be configured via set-channels, along with vectors needed for
2375 * RoCe. Else, just program the number we'll use initially.
2377 if (be_roce_supported(adapter))
2378 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2379 2 * num_online_cpus());
2381 num_vec = adapter->cfg_num_qs;
2383 for (i = 0; i < num_vec; i++)
2384 adapter->msix_entries[i].entry = i;
2386 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2389 } else if (status >= MIN_MSIX_VECTORS) {
2391 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2397 dev_warn(dev, "MSIx enable failed\n");
2399 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2400 if (!be_physfn(adapter))
2404 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2405 adapter->num_msix_roce_vec = num_vec / 2;
2406 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2407 adapter->num_msix_roce_vec);
2410 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2412 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2413 adapter->num_msix_vec);
2417 static inline int be_msix_vec_get(struct be_adapter *adapter,
2418 struct be_eq_obj *eqo)
2420 return adapter->msix_entries[eqo->msix_idx].vector;
2423 static int be_msix_register(struct be_adapter *adapter)
2425 struct net_device *netdev = adapter->netdev;
2426 struct be_eq_obj *eqo;
2429 for_all_evt_queues(adapter, eqo, i) {
2430 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2431 vec = be_msix_vec_get(adapter, eqo);
2432 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2439 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2440 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2441 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2443 be_msix_disable(adapter);
2447 static int be_irq_register(struct be_adapter *adapter)
2449 struct net_device *netdev = adapter->netdev;
2452 if (msix_enabled(adapter)) {
2453 status = be_msix_register(adapter);
2456 /* INTx is not supported for VF */
2457 if (!be_physfn(adapter))
2461 /* INTx: only the first EQ is used */
2462 netdev->irq = adapter->pdev->irq;
2463 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2464 &adapter->eq_obj[0]);
2466 dev_err(&adapter->pdev->dev,
2467 "INTx request IRQ failed - err %d\n", status);
2471 adapter->isr_registered = true;
2475 static void be_irq_unregister(struct be_adapter *adapter)
2477 struct net_device *netdev = adapter->netdev;
2478 struct be_eq_obj *eqo;
2481 if (!adapter->isr_registered)
2485 if (!msix_enabled(adapter)) {
2486 free_irq(netdev->irq, &adapter->eq_obj[0]);
2491 for_all_evt_queues(adapter, eqo, i)
2492 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2495 adapter->isr_registered = false;
2498 static void be_rx_qs_destroy(struct be_adapter *adapter)
2500 struct be_queue_info *q;
2501 struct be_rx_obj *rxo;
2504 for_all_rx_queues(adapter, rxo, i) {
2507 be_cmd_rxq_destroy(adapter, q);
2508 be_rx_cq_clean(rxo);
2510 be_queue_free(adapter, q);
2514 static int be_close(struct net_device *netdev)
2516 struct be_adapter *adapter = netdev_priv(netdev);
2517 struct be_eq_obj *eqo;
2520 be_roce_dev_close(adapter);
2522 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2523 for_all_evt_queues(adapter, eqo, i)
2524 napi_disable(&eqo->napi);
2525 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2528 be_async_mcc_disable(adapter);
2530 /* Wait for all pending tx completions to arrive so that
2531 * all tx skbs are freed.
2533 netif_tx_disable(netdev);
2534 be_tx_compl_clean(adapter);
2536 be_rx_qs_destroy(adapter);
2538 for_all_evt_queues(adapter, eqo, i) {
2539 if (msix_enabled(adapter))
2540 synchronize_irq(be_msix_vec_get(adapter, eqo));
2542 synchronize_irq(netdev->irq);
2546 be_irq_unregister(adapter);
2551 static int be_rx_qs_create(struct be_adapter *adapter)
2553 struct be_rx_obj *rxo;
2557 for_all_rx_queues(adapter, rxo, i) {
2558 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2559 sizeof(struct be_eth_rx_d));
2564 /* The FW would like the default RXQ to be created first */
2565 rxo = default_rxo(adapter);
2566 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2567 adapter->if_handle, false, &rxo->rss_id);
2571 for_all_rss_queues(adapter, rxo, i) {
2572 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2573 rx_frag_size, adapter->if_handle,
2574 true, &rxo->rss_id);
2579 if (be_multi_rxq(adapter)) {
2580 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2581 for_all_rss_queues(adapter, rxo, i) {
2584 rsstable[j + i] = rxo->rss_id;
2587 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2588 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2590 if (!BEx_chip(adapter))
2591 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2592 RSS_ENABLE_UDP_IPV6;
2594 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2597 adapter->rss_flags = 0;
2602 /* First time posting */
2603 for_all_rx_queues(adapter, rxo, i)
2604 be_post_rx_frags(rxo, GFP_KERNEL);
2608 static int be_open(struct net_device *netdev)
2610 struct be_adapter *adapter = netdev_priv(netdev);
2611 struct be_eq_obj *eqo;
2612 struct be_rx_obj *rxo;
2613 struct be_tx_obj *txo;
2617 status = be_rx_qs_create(adapter);
2621 status = be_irq_register(adapter);
2625 for_all_rx_queues(adapter, rxo, i)
2626 be_cq_notify(adapter, rxo->cq.id, true, 0);
2628 for_all_tx_queues(adapter, txo, i)
2629 be_cq_notify(adapter, txo->cq.id, true, 0);
2631 be_async_mcc_enable(adapter);
2633 for_all_evt_queues(adapter, eqo, i) {
2634 napi_enable(&eqo->napi);
2635 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2637 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2639 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2641 be_link_status_update(adapter, link_status);
2643 netif_tx_start_all_queues(netdev);
2644 be_roce_dev_open(adapter);
2647 be_close(adapter->netdev);
2651 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2653 struct be_dma_mem cmd;
2657 memset(mac, 0, ETH_ALEN);
2659 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2660 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2666 status = pci_write_config_dword(adapter->pdev,
2667 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2669 dev_err(&adapter->pdev->dev,
2670 "Could not enable Wake-on-lan\n");
2671 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2675 status = be_cmd_enable_magic_wol(adapter,
2676 adapter->netdev->dev_addr, &cmd);
2677 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2678 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2680 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2681 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2682 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2685 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2690 * Generate a seed MAC address from the PF MAC Address using jhash.
2691 * MAC Address for VFs are assigned incrementally starting from the seed.
2692 * These addresses are programmed in the ASIC by the PF and the VF driver
2693 * queries for the MAC address during its probe.
2695 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2700 struct be_vf_cfg *vf_cfg;
2702 be_vf_eth_addr_generate(adapter, mac);
2704 for_all_vfs(adapter, vf_cfg, vf) {
2705 if (BEx_chip(adapter))
2706 status = be_cmd_pmac_add(adapter, mac,
2708 &vf_cfg->pmac_id, vf + 1);
2710 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2714 dev_err(&adapter->pdev->dev,
2715 "Mac address assignment failed for VF %d\n", vf);
2717 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2724 static int be_vfs_mac_query(struct be_adapter *adapter)
2728 struct be_vf_cfg *vf_cfg;
2729 bool active = false;
2731 for_all_vfs(adapter, vf_cfg, vf) {
2732 be_cmd_get_mac_from_list(adapter, mac, &active,
2733 &vf_cfg->pmac_id, 0);
2735 status = be_cmd_mac_addr_query(adapter, mac, false,
2736 vf_cfg->if_handle, 0);
2739 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2744 static void be_vf_clear(struct be_adapter *adapter)
2746 struct be_vf_cfg *vf_cfg;
2749 if (pci_vfs_assigned(adapter->pdev)) {
2750 dev_warn(&adapter->pdev->dev,
2751 "VFs are assigned to VMs: not disabling VFs\n");
2755 pci_disable_sriov(adapter->pdev);
2757 for_all_vfs(adapter, vf_cfg, vf) {
2758 if (BEx_chip(adapter))
2759 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2760 vf_cfg->pmac_id, vf + 1);
2762 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2765 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2768 kfree(adapter->vf_cfg);
2769 adapter->num_vfs = 0;
2772 static void be_clear_queues(struct be_adapter *adapter)
2774 be_mcc_queues_destroy(adapter);
2775 be_rx_cqs_destroy(adapter);
2776 be_tx_queues_destroy(adapter);
2777 be_evt_queues_destroy(adapter);
2780 static void be_cancel_worker(struct be_adapter *adapter)
2782 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2783 cancel_delayed_work_sync(&adapter->work);
2784 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2788 static int be_clear(struct be_adapter *adapter)
2792 be_cancel_worker(adapter);
2794 if (sriov_enabled(adapter))
2795 be_vf_clear(adapter);
2797 /* delete the primary mac along with the uc-mac list */
2798 for (i = 0; i < (adapter->uc_macs + 1); i++)
2799 be_cmd_pmac_del(adapter, adapter->if_handle,
2800 adapter->pmac_id[i], 0);
2801 adapter->uc_macs = 0;
2803 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2805 be_clear_queues(adapter);
2807 kfree(adapter->pmac_id);
2808 adapter->pmac_id = NULL;
2810 be_msix_disable(adapter);
2814 static int be_vfs_if_create(struct be_adapter *adapter)
2816 struct be_resources res = {0};
2817 struct be_vf_cfg *vf_cfg;
2818 u32 cap_flags, en_flags, vf;
2821 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2822 BE_IF_FLAGS_MULTICAST;
2824 for_all_vfs(adapter, vf_cfg, vf) {
2825 if (!BE3_chip(adapter)) {
2826 status = be_cmd_get_profile_config(adapter, &res,
2829 cap_flags = res.if_cap_flags;
2832 /* If a FW profile exists, then cap_flags are updated */
2833 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2834 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2835 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2836 &vf_cfg->if_handle, vf + 1);
2844 static int be_vf_setup_init(struct be_adapter *adapter)
2846 struct be_vf_cfg *vf_cfg;
2849 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2851 if (!adapter->vf_cfg)
2854 for_all_vfs(adapter, vf_cfg, vf) {
2855 vf_cfg->if_handle = -1;
2856 vf_cfg->pmac_id = -1;
2861 static int be_vf_setup(struct be_adapter *adapter)
2863 struct be_vf_cfg *vf_cfg;
2864 u16 def_vlan, lnk_speed;
2865 int status, old_vfs, vf;
2866 struct device *dev = &adapter->pdev->dev;
2869 old_vfs = pci_num_vf(adapter->pdev);
2871 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2872 if (old_vfs != num_vfs)
2873 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2874 adapter->num_vfs = old_vfs;
2876 if (num_vfs > be_max_vfs(adapter))
2877 dev_info(dev, "Device supports %d VFs and not %d\n",
2878 be_max_vfs(adapter), num_vfs);
2879 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
2880 if (!adapter->num_vfs)
2884 status = be_vf_setup_init(adapter);
2889 for_all_vfs(adapter, vf_cfg, vf) {
2890 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2895 status = be_vfs_if_create(adapter);
2901 status = be_vfs_mac_query(adapter);
2905 status = be_vf_eth_addr_config(adapter);
2910 for_all_vfs(adapter, vf_cfg, vf) {
2911 /* Allow VFs to programs MAC/VLAN filters */
2912 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
2913 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
2914 status = be_cmd_set_fn_privileges(adapter,
2919 dev_info(dev, "VF%d has FILTMGMT privilege\n",
2923 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2924 * Allow full available bandwidth
2926 if (BE3_chip(adapter) && !old_vfs)
2927 be_cmd_set_qos(adapter, 1000, vf+1);
2929 status = be_cmd_link_status_query(adapter, &lnk_speed,
2932 vf_cfg->tx_rate = lnk_speed;
2934 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2935 vf + 1, vf_cfg->if_handle, NULL);
2938 vf_cfg->def_vid = def_vlan;
2940 be_cmd_enable_vf(adapter, vf + 1);
2944 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
2946 dev_err(dev, "SRIOV enable failed\n");
2947 adapter->num_vfs = 0;
2953 dev_err(dev, "VF setup failed\n");
2954 be_vf_clear(adapter);
2958 /* On BE2/BE3 FW does not suggest the supported limits */
2959 static void BEx_get_resources(struct be_adapter *adapter,
2960 struct be_resources *res)
2962 struct pci_dev *pdev = adapter->pdev;
2963 bool use_sriov = false;
2965 if (BE3_chip(adapter) && be_physfn(adapter)) {
2968 max_vfs = pci_sriov_get_totalvfs(pdev);
2969 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
2970 use_sriov = res->max_vfs && num_vfs;
2973 if (be_physfn(adapter))
2974 res->max_uc_mac = BE_UC_PMAC_COUNT;
2976 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
2978 if (adapter->function_mode & FLEX10_MODE)
2979 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
2980 else if (adapter->function_mode & UMC_ENABLED)
2981 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
2983 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
2984 res->max_mcast_mac = BE_MAX_MC;
2986 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
2987 !be_physfn(adapter))
2990 res->max_tx_qs = BE3_MAX_TX_QS;
2992 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2993 !use_sriov && be_physfn(adapter))
2994 res->max_rss_qs = (adapter->be3_native) ?
2995 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2996 res->max_rx_qs = res->max_rss_qs + 1;
2998 res->max_evt_qs = be_physfn(adapter) ? BE3_MAX_EVT_QS : 1;
3000 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3001 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3002 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3005 static void be_setup_init(struct be_adapter *adapter)
3007 adapter->vlan_prio_bmap = 0xff;
3008 adapter->phy.link_speed = -1;
3009 adapter->if_handle = -1;
3010 adapter->be3_native = false;
3011 adapter->promiscuous = false;
3012 if (be_physfn(adapter))
3013 adapter->cmd_privileges = MAX_PRIVILEGES;
3015 adapter->cmd_privileges = MIN_PRIVILEGES;
3018 static int be_get_resources(struct be_adapter *adapter)
3020 struct device *dev = &adapter->pdev->dev;
3021 struct be_resources res = {0};
3024 if (BEx_chip(adapter)) {
3025 BEx_get_resources(adapter, &res);
3029 /* For BE3 only check if FW suggests a different max-txqs value */
3030 if (BE3_chip(adapter)) {
3031 status = be_cmd_get_profile_config(adapter, &res, 0);
3032 if (!status && res.max_tx_qs)
3033 adapter->res.max_tx_qs =
3034 min(adapter->res.max_tx_qs, res.max_tx_qs);
3037 /* For Lancer, SH etc read per-function resource limits from FW.
3038 * GET_FUNC_CONFIG returns per function guaranteed limits.
3039 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3041 if (!BEx_chip(adapter)) {
3042 status = be_cmd_get_func_config(adapter, &res);
3046 /* If RoCE may be enabled stash away half the EQs for RoCE */
3047 if (be_roce_supported(adapter))
3048 res.max_evt_qs /= 2;
3051 if (be_physfn(adapter)) {
3052 status = be_cmd_get_profile_config(adapter, &res, 0);
3055 adapter->res.max_vfs = res.max_vfs;
3058 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3059 be_max_txqs(adapter), be_max_rxqs(adapter),
3060 be_max_rss(adapter), be_max_eqs(adapter),
3061 be_max_vfs(adapter));
3062 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3063 be_max_uc(adapter), be_max_mc(adapter),
3064 be_max_vlans(adapter));
3070 /* Routine to query per function resource limits */
3071 static int be_get_config(struct be_adapter *adapter)
3075 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3076 &adapter->function_mode,
3077 &adapter->function_caps,
3078 &adapter->asic_rev);
3082 status = be_get_resources(adapter);
3086 /* primary mac needs 1 pmac entry */
3087 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3089 if (!adapter->pmac_id)
3092 /* Sanitize cfg_num_qs based on HW and platform limits */
3093 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3098 static int be_mac_setup(struct be_adapter *adapter)
3103 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3104 status = be_cmd_get_perm_mac(adapter, mac);
3108 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3109 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3111 /* Maybe the HW was reset; dev_addr must be re-programmed */
3112 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3115 /* On BE3 VFs this cmd may fail due to lack of privilege.
3116 * Ignore the failure as in this case pmac_id is fetched
3117 * in the IFACE_CREATE cmd.
3119 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3120 &adapter->pmac_id[0], 0);
3124 static void be_schedule_worker(struct be_adapter *adapter)
3126 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3127 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3130 static int be_setup_queues(struct be_adapter *adapter)
3132 struct net_device *netdev = adapter->netdev;
3135 status = be_evt_queues_create(adapter);
3139 status = be_tx_qs_create(adapter);
3143 status = be_rx_cqs_create(adapter);
3147 status = be_mcc_queues_create(adapter);
3151 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3155 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3161 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3165 int be_update_queues(struct be_adapter *adapter)
3167 struct net_device *netdev = adapter->netdev;
3170 if (netif_running(netdev))
3173 be_cancel_worker(adapter);
3175 /* If any vectors have been shared with RoCE we cannot re-program
3178 if (!adapter->num_msix_roce_vec)
3179 be_msix_disable(adapter);
3181 be_clear_queues(adapter);
3183 if (!msix_enabled(adapter)) {
3184 status = be_msix_enable(adapter);
3189 status = be_setup_queues(adapter);
3193 be_schedule_worker(adapter);
3195 if (netif_running(netdev))
3196 status = be_open(netdev);
3201 static int be_setup(struct be_adapter *adapter)
3203 struct device *dev = &adapter->pdev->dev;
3204 u32 tx_fc, rx_fc, en_flags;
3207 be_setup_init(adapter);
3209 if (!lancer_chip(adapter))
3210 be_cmd_req_native_mode(adapter);
3212 status = be_get_config(adapter);
3216 status = be_msix_enable(adapter);
3220 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3221 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3222 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3223 en_flags |= BE_IF_FLAGS_RSS;
3224 en_flags = en_flags & be_if_cap_flags(adapter);
3225 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3226 &adapter->if_handle, 0);
3230 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3232 status = be_setup_queues(adapter);
3237 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3238 /* In UMC mode FW does not return right privileges.
3239 * Override with correct privilege equivalent to PF.
3241 if (be_is_mc(adapter))
3242 adapter->cmd_privileges = MAX_PRIVILEGES;
3244 status = be_mac_setup(adapter);
3248 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3250 if (adapter->vlans_added)
3251 be_vid_config(adapter);
3253 be_set_rx_mode(adapter->netdev);
3255 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3257 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3258 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3261 if (be_physfn(adapter) && num_vfs) {
3262 if (be_max_vfs(adapter))
3263 be_vf_setup(adapter);
3265 dev_warn(dev, "device doesn't support SRIOV\n");
3268 status = be_cmd_get_phy_info(adapter);
3269 if (!status && be_pause_supported(adapter))
3270 adapter->phy.fc_autoneg = 1;
3272 be_schedule_worker(adapter);
3279 #ifdef CONFIG_NET_POLL_CONTROLLER
3280 static void be_netpoll(struct net_device *netdev)
3282 struct be_adapter *adapter = netdev_priv(netdev);
3283 struct be_eq_obj *eqo;
3286 for_all_evt_queues(adapter, eqo, i) {
3287 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3288 napi_schedule(&eqo->napi);
3295 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3296 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3298 static bool be_flash_redboot(struct be_adapter *adapter,
3299 const u8 *p, u32 img_start, int image_size,
3306 crc_offset = hdr_size + img_start + image_size - 4;
3310 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3313 dev_err(&adapter->pdev->dev,
3314 "could not get crc from flash, not flashing redboot\n");
3318 /*update redboot only if crc does not match*/
3319 if (!memcmp(flashed_crc, p, 4))
3325 static bool phy_flashing_required(struct be_adapter *adapter)
3327 return (adapter->phy.phy_type == TN_8022 &&
3328 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3331 static bool is_comp_in_ufi(struct be_adapter *adapter,
3332 struct flash_section_info *fsec, int type)
3334 int i = 0, img_type = 0;
3335 struct flash_section_info_g2 *fsec_g2 = NULL;
3337 if (BE2_chip(adapter))
3338 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3340 for (i = 0; i < MAX_FLASH_COMP; i++) {
3342 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3344 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3346 if (img_type == type)
3353 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3355 const struct firmware *fw)
3357 struct flash_section_info *fsec = NULL;
3358 const u8 *p = fw->data;
3361 while (p < (fw->data + fw->size)) {
3362 fsec = (struct flash_section_info *)p;
3363 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3370 static int be_flash(struct be_adapter *adapter, const u8 *img,
3371 struct be_dma_mem *flash_cmd, int optype, int img_size)
3373 u32 total_bytes = 0, flash_op, num_bytes = 0;
3375 struct be_cmd_write_flashrom *req = flash_cmd->va;
3377 total_bytes = img_size;
3378 while (total_bytes) {
3379 num_bytes = min_t(u32, 32*1024, total_bytes);
3381 total_bytes -= num_bytes;
3384 if (optype == OPTYPE_PHY_FW)
3385 flash_op = FLASHROM_OPER_PHY_FLASH;
3387 flash_op = FLASHROM_OPER_FLASH;
3389 if (optype == OPTYPE_PHY_FW)
3390 flash_op = FLASHROM_OPER_PHY_SAVE;
3392 flash_op = FLASHROM_OPER_SAVE;
3395 memcpy(req->data_buf, img, num_bytes);
3397 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3398 flash_op, num_bytes);
3400 if (status == ILLEGAL_IOCTL_REQ &&
3401 optype == OPTYPE_PHY_FW)
3403 dev_err(&adapter->pdev->dev,
3404 "cmd to write to flash rom failed.\n");
3411 /* For BE2, BE3 and BE3-R */
3412 static int be_flash_BEx(struct be_adapter *adapter,
3413 const struct firmware *fw,
3414 struct be_dma_mem *flash_cmd,
3418 int status = 0, i, filehdr_size = 0;
3419 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3420 const u8 *p = fw->data;
3421 const struct flash_comp *pflashcomp;
3422 int num_comp, redboot;
3423 struct flash_section_info *fsec = NULL;
3425 struct flash_comp gen3_flash_types[] = {
3426 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3427 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3428 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3429 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3430 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3431 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3432 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3433 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3434 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3435 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3436 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3437 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3438 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3439 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3440 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3441 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3442 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3443 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3444 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3445 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3448 struct flash_comp gen2_flash_types[] = {
3449 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3450 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3451 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3452 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3453 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3454 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3455 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3456 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3457 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3458 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3459 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3460 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3461 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3462 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3463 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3464 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3467 if (BE3_chip(adapter)) {
3468 pflashcomp = gen3_flash_types;
3469 filehdr_size = sizeof(struct flash_file_hdr_g3);
3470 num_comp = ARRAY_SIZE(gen3_flash_types);
3472 pflashcomp = gen2_flash_types;
3473 filehdr_size = sizeof(struct flash_file_hdr_g2);
3474 num_comp = ARRAY_SIZE(gen2_flash_types);
3477 /* Get flash section info*/
3478 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3480 dev_err(&adapter->pdev->dev,
3481 "Invalid Cookie. UFI corrupted ?\n");
3484 for (i = 0; i < num_comp; i++) {
3485 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3488 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3489 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3492 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3493 !phy_flashing_required(adapter))
3496 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3497 redboot = be_flash_redboot(adapter, fw->data,
3498 pflashcomp[i].offset, pflashcomp[i].size,
3499 filehdr_size + img_hdrs_size);
3505 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3506 if (p + pflashcomp[i].size > fw->data + fw->size)
3509 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3510 pflashcomp[i].size);
3512 dev_err(&adapter->pdev->dev,
3513 "Flashing section type %d failed.\n",
3514 pflashcomp[i].img_type);
3521 static int be_flash_skyhawk(struct be_adapter *adapter,
3522 const struct firmware *fw,
3523 struct be_dma_mem *flash_cmd, int num_of_images)
3525 int status = 0, i, filehdr_size = 0;
3526 int img_offset, img_size, img_optype, redboot;
3527 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3528 const u8 *p = fw->data;
3529 struct flash_section_info *fsec = NULL;
3531 filehdr_size = sizeof(struct flash_file_hdr_g3);
3532 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3534 dev_err(&adapter->pdev->dev,
3535 "Invalid Cookie. UFI corrupted ?\n");
3539 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3540 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3541 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3543 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3544 case IMAGE_FIRMWARE_iSCSI:
3545 img_optype = OPTYPE_ISCSI_ACTIVE;
3547 case IMAGE_BOOT_CODE:
3548 img_optype = OPTYPE_REDBOOT;
3550 case IMAGE_OPTION_ROM_ISCSI:
3551 img_optype = OPTYPE_BIOS;
3553 case IMAGE_OPTION_ROM_PXE:
3554 img_optype = OPTYPE_PXE_BIOS;
3556 case IMAGE_OPTION_ROM_FCoE:
3557 img_optype = OPTYPE_FCOE_BIOS;
3559 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3560 img_optype = OPTYPE_ISCSI_BACKUP;
3563 img_optype = OPTYPE_NCSI_FW;
3569 if (img_optype == OPTYPE_REDBOOT) {
3570 redboot = be_flash_redboot(adapter, fw->data,
3571 img_offset, img_size,
3572 filehdr_size + img_hdrs_size);
3578 p += filehdr_size + img_offset + img_hdrs_size;
3579 if (p + img_size > fw->data + fw->size)
3582 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3584 dev_err(&adapter->pdev->dev,
3585 "Flashing section type %d failed.\n",
3586 fsec->fsec_entry[i].type);
3593 static int lancer_fw_download(struct be_adapter *adapter,
3594 const struct firmware *fw)
3596 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3597 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3598 struct be_dma_mem flash_cmd;
3599 const u8 *data_ptr = NULL;
3600 u8 *dest_image_ptr = NULL;
3601 size_t image_size = 0;
3603 u32 data_written = 0;
3609 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3610 dev_err(&adapter->pdev->dev,
3611 "FW Image not properly aligned. "
3612 "Length must be 4 byte aligned.\n");
3614 goto lancer_fw_exit;
3617 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3618 + LANCER_FW_DOWNLOAD_CHUNK;
3619 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3620 &flash_cmd.dma, GFP_KERNEL);
3621 if (!flash_cmd.va) {
3623 goto lancer_fw_exit;
3626 dest_image_ptr = flash_cmd.va +
3627 sizeof(struct lancer_cmd_req_write_object);
3628 image_size = fw->size;
3629 data_ptr = fw->data;
3631 while (image_size) {
3632 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3634 /* Copy the image chunk content. */
3635 memcpy(dest_image_ptr, data_ptr, chunk_size);
3637 status = lancer_cmd_write_object(adapter, &flash_cmd,
3639 LANCER_FW_DOWNLOAD_LOCATION,
3640 &data_written, &change_status,
3645 offset += data_written;
3646 data_ptr += data_written;
3647 image_size -= data_written;
3651 /* Commit the FW written */
3652 status = lancer_cmd_write_object(adapter, &flash_cmd,
3654 LANCER_FW_DOWNLOAD_LOCATION,
3655 &data_written, &change_status,
3659 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3662 dev_err(&adapter->pdev->dev,
3663 "Firmware load error. "
3664 "Status code: 0x%x Additional Status: 0x%x\n",
3665 status, add_status);
3666 goto lancer_fw_exit;
3669 if (change_status == LANCER_FW_RESET_NEEDED) {
3670 status = lancer_physdev_ctrl(adapter,
3671 PHYSDEV_CONTROL_FW_RESET_MASK);
3673 dev_err(&adapter->pdev->dev,
3674 "Adapter busy for FW reset.\n"
3675 "New FW will not be active.\n");
3676 goto lancer_fw_exit;
3678 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3679 dev_err(&adapter->pdev->dev,
3680 "System reboot required for new FW"
3684 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3691 #define UFI_TYPE3R 10
3693 static int be_get_ufi_type(struct be_adapter *adapter,
3694 struct flash_file_hdr_g3 *fhdr)
3697 goto be_get_ufi_exit;
3699 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3701 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3702 if (fhdr->asic_type_rev == 0x10)
3706 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3710 dev_err(&adapter->pdev->dev,
3711 "UFI and Interface are not compatible for flashing\n");
3715 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3717 struct flash_file_hdr_g3 *fhdr3;
3718 struct image_hdr *img_hdr_ptr = NULL;
3719 struct be_dma_mem flash_cmd;
3721 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3723 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3724 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3725 &flash_cmd.dma, GFP_KERNEL);
3726 if (!flash_cmd.va) {
3732 fhdr3 = (struct flash_file_hdr_g3 *)p;
3734 ufi_type = be_get_ufi_type(adapter, fhdr3);
3736 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3737 for (i = 0; i < num_imgs; i++) {
3738 img_hdr_ptr = (struct image_hdr *)(fw->data +
3739 (sizeof(struct flash_file_hdr_g3) +
3740 i * sizeof(struct image_hdr)));
3741 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3744 status = be_flash_skyhawk(adapter, fw,
3745 &flash_cmd, num_imgs);
3748 status = be_flash_BEx(adapter, fw, &flash_cmd,
3752 /* Do not flash this ufi on BE3-R cards */
3753 if (adapter->asic_rev < 0x10)
3754 status = be_flash_BEx(adapter, fw,
3759 dev_err(&adapter->pdev->dev,
3760 "Can't load BE3 UFI on BE3R\n");
3766 if (ufi_type == UFI_TYPE2)
3767 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3768 else if (ufi_type == -1)
3771 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3774 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3778 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3784 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3786 const struct firmware *fw;
3789 if (!netif_running(adapter->netdev)) {
3790 dev_err(&adapter->pdev->dev,
3791 "Firmware load not allowed (interface is down)\n");
3795 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3799 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3801 if (lancer_chip(adapter))
3802 status = lancer_fw_download(adapter, fw);
3804 status = be_fw_download(adapter, fw);
3807 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3808 adapter->fw_on_flash);
3811 release_firmware(fw);
3815 static int be_ndo_bridge_setlink(struct net_device *dev,
3816 struct nlmsghdr *nlh)
3818 struct be_adapter *adapter = netdev_priv(dev);
3819 struct nlattr *attr, *br_spec;
3824 if (!sriov_enabled(adapter))
3827 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
3829 nla_for_each_nested(attr, br_spec, rem) {
3830 if (nla_type(attr) != IFLA_BRIDGE_MODE)
3833 mode = nla_get_u16(attr);
3834 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
3837 status = be_cmd_set_hsw_config(adapter, 0, 0,
3839 mode == BRIDGE_MODE_VEPA ?
3840 PORT_FWD_TYPE_VEPA :
3845 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
3846 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3851 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
3852 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3857 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
3858 struct net_device *dev,
3861 struct be_adapter *adapter = netdev_priv(dev);
3865 if (!sriov_enabled(adapter))
3868 /* BE and Lancer chips support VEB mode only */
3869 if (BEx_chip(adapter) || lancer_chip(adapter)) {
3870 hsw_mode = PORT_FWD_TYPE_VEB;
3872 status = be_cmd_get_hsw_config(adapter, NULL, 0,
3873 adapter->if_handle, &hsw_mode);
3878 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
3879 hsw_mode == PORT_FWD_TYPE_VEPA ?
3880 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
3883 static const struct net_device_ops be_netdev_ops = {
3884 .ndo_open = be_open,
3885 .ndo_stop = be_close,
3886 .ndo_start_xmit = be_xmit,
3887 .ndo_set_rx_mode = be_set_rx_mode,
3888 .ndo_set_mac_address = be_mac_addr_set,
3889 .ndo_change_mtu = be_change_mtu,
3890 .ndo_get_stats64 = be_get_stats64,
3891 .ndo_validate_addr = eth_validate_addr,
3892 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3893 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3894 .ndo_set_vf_mac = be_set_vf_mac,
3895 .ndo_set_vf_vlan = be_set_vf_vlan,
3896 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3897 .ndo_get_vf_config = be_get_vf_config,
3898 #ifdef CONFIG_NET_POLL_CONTROLLER
3899 .ndo_poll_controller = be_netpoll,
3901 .ndo_bridge_setlink = be_ndo_bridge_setlink,
3902 .ndo_bridge_getlink = be_ndo_bridge_getlink,
3905 static void be_netdev_init(struct net_device *netdev)
3907 struct be_adapter *adapter = netdev_priv(netdev);
3909 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3910 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3911 NETIF_F_HW_VLAN_CTAG_TX;
3912 if (be_multi_rxq(adapter))
3913 netdev->hw_features |= NETIF_F_RXHASH;
3915 netdev->features |= netdev->hw_features |
3916 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3918 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3919 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3921 netdev->priv_flags |= IFF_UNICAST_FLT;
3923 netdev->flags |= IFF_MULTICAST;
3925 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3927 netdev->netdev_ops = &be_netdev_ops;
3929 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3932 static void be_unmap_pci_bars(struct be_adapter *adapter)
3935 pci_iounmap(adapter->pdev, adapter->csr);
3937 pci_iounmap(adapter->pdev, adapter->db);
3940 static int db_bar(struct be_adapter *adapter)
3942 if (lancer_chip(adapter) || !be_physfn(adapter))
3948 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3950 if (skyhawk_chip(adapter)) {
3951 adapter->roce_db.size = 4096;
3952 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3954 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3960 static int be_map_pci_bars(struct be_adapter *adapter)
3965 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3966 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3967 SLI_INTF_IF_TYPE_SHIFT;
3969 if (BEx_chip(adapter) && be_physfn(adapter)) {
3970 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3971 if (adapter->csr == NULL)
3975 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3980 be_roce_map_pci_bars(adapter);
3984 be_unmap_pci_bars(adapter);
3988 static void be_ctrl_cleanup(struct be_adapter *adapter)
3990 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3992 be_unmap_pci_bars(adapter);
3995 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3998 mem = &adapter->rx_filter;
4000 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4004 static int be_ctrl_init(struct be_adapter *adapter)
4006 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4007 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4008 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4012 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4013 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4014 SLI_INTF_FAMILY_SHIFT;
4015 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4017 status = be_map_pci_bars(adapter);
4021 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4022 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4023 mbox_mem_alloc->size,
4024 &mbox_mem_alloc->dma,
4026 if (!mbox_mem_alloc->va) {
4028 goto unmap_pci_bars;
4030 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4031 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4032 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4033 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4035 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4036 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4037 rx_filter->size, &rx_filter->dma,
4039 if (rx_filter->va == NULL) {
4044 mutex_init(&adapter->mbox_lock);
4045 spin_lock_init(&adapter->mcc_lock);
4046 spin_lock_init(&adapter->mcc_cq_lock);
4048 init_completion(&adapter->flash_compl);
4049 pci_save_state(adapter->pdev);
4053 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4054 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4057 be_unmap_pci_bars(adapter);
4063 static void be_stats_cleanup(struct be_adapter *adapter)
4065 struct be_dma_mem *cmd = &adapter->stats_cmd;
4068 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4072 static int be_stats_init(struct be_adapter *adapter)
4074 struct be_dma_mem *cmd = &adapter->stats_cmd;
4076 if (lancer_chip(adapter))
4077 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4078 else if (BE2_chip(adapter))
4079 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4081 /* BE3 and Skyhawk */
4082 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4084 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4086 if (cmd->va == NULL)
4091 static void be_remove(struct pci_dev *pdev)
4093 struct be_adapter *adapter = pci_get_drvdata(pdev);
4098 be_roce_dev_remove(adapter);
4099 be_intr_set(adapter, false);
4101 cancel_delayed_work_sync(&adapter->func_recovery_work);
4103 unregister_netdev(adapter->netdev);
4107 /* tell fw we're done with firing cmds */
4108 be_cmd_fw_clean(adapter);
4110 be_stats_cleanup(adapter);
4112 be_ctrl_cleanup(adapter);
4114 pci_disable_pcie_error_reporting(pdev);
4116 pci_set_drvdata(pdev, NULL);
4117 pci_release_regions(pdev);
4118 pci_disable_device(pdev);
4120 free_netdev(adapter->netdev);
4123 bool be_is_wol_supported(struct be_adapter *adapter)
4125 return ((adapter->wol_cap & BE_WOL_CAP) &&
4126 !be_is_wol_excluded(adapter)) ? true : false;
4129 u32 be_get_fw_log_level(struct be_adapter *adapter)
4131 struct be_dma_mem extfat_cmd;
4132 struct be_fat_conf_params *cfgs;
4137 if (lancer_chip(adapter))
4140 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4141 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4142 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4145 if (!extfat_cmd.va) {
4146 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4151 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4153 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4154 sizeof(struct be_cmd_resp_hdr));
4155 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4156 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4157 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4160 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4166 static int be_get_initial_config(struct be_adapter *adapter)
4171 status = be_cmd_get_cntl_attributes(adapter);
4175 status = be_cmd_get_acpi_wol_cap(adapter);
4177 /* in case of a failure to get wol capabillities
4178 * check the exclusion list to determine WOL capability */
4179 if (!be_is_wol_excluded(adapter))
4180 adapter->wol_cap |= BE_WOL_CAP;
4183 if (be_is_wol_supported(adapter))
4184 adapter->wol = true;
4186 /* Must be a power of 2 or else MODULO will BUG_ON */
4187 adapter->be_get_temp_freq = 64;
4189 level = be_get_fw_log_level(adapter);
4190 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4192 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4196 static int lancer_recover_func(struct be_adapter *adapter)
4198 struct device *dev = &adapter->pdev->dev;
4201 status = lancer_test_and_set_rdy_state(adapter);
4205 if (netif_running(adapter->netdev))
4206 be_close(adapter->netdev);
4210 be_clear_all_error(adapter);
4212 status = be_setup(adapter);
4216 if (netif_running(adapter->netdev)) {
4217 status = be_open(adapter->netdev);
4222 dev_err(dev, "Error recovery successful\n");
4225 if (status == -EAGAIN)
4226 dev_err(dev, "Waiting for resource provisioning\n");
4228 dev_err(dev, "Error recovery failed\n");
4233 static void be_func_recovery_task(struct work_struct *work)
4235 struct be_adapter *adapter =
4236 container_of(work, struct be_adapter, func_recovery_work.work);
4239 be_detect_error(adapter);
4241 if (adapter->hw_error && lancer_chip(adapter)) {
4244 netif_device_detach(adapter->netdev);
4247 status = lancer_recover_func(adapter);
4249 netif_device_attach(adapter->netdev);
4252 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4253 * no need to attempt further recovery.
4255 if (!status || status == -EAGAIN)
4256 schedule_delayed_work(&adapter->func_recovery_work,
4257 msecs_to_jiffies(1000));
4260 static void be_worker(struct work_struct *work)
4262 struct be_adapter *adapter =
4263 container_of(work, struct be_adapter, work.work);
4264 struct be_rx_obj *rxo;
4265 struct be_eq_obj *eqo;
4268 /* when interrupts are not yet enabled, just reap any pending
4269 * mcc completions */
4270 if (!netif_running(adapter->netdev)) {
4272 be_process_mcc(adapter);
4277 if (!adapter->stats_cmd_sent) {
4278 if (lancer_chip(adapter))
4279 lancer_cmd_get_pport_stats(adapter,
4280 &adapter->stats_cmd);
4282 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4285 if (be_physfn(adapter) &&
4286 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4287 be_cmd_get_die_temperature(adapter);
4289 for_all_rx_queues(adapter, rxo, i) {
4290 if (rxo->rx_post_starved) {
4291 rxo->rx_post_starved = false;
4292 be_post_rx_frags(rxo, GFP_KERNEL);
4296 for_all_evt_queues(adapter, eqo, i)
4297 be_eqd_update(adapter, eqo);
4300 adapter->work_counter++;
4301 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4304 /* If any VFs are already enabled don't FLR the PF */
4305 static bool be_reset_required(struct be_adapter *adapter)
4307 return pci_num_vf(adapter->pdev) ? false : true;
4310 static char *mc_name(struct be_adapter *adapter)
4312 if (adapter->function_mode & FLEX10_MODE)
4314 else if (adapter->function_mode & VNIC_MODE)
4316 else if (adapter->function_mode & UMC_ENABLED)
4322 static inline char *func_name(struct be_adapter *adapter)
4324 return be_physfn(adapter) ? "PF" : "VF";
4327 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4330 struct be_adapter *adapter;
4331 struct net_device *netdev;
4334 status = pci_enable_device(pdev);
4338 status = pci_request_regions(pdev, DRV_NAME);
4341 pci_set_master(pdev);
4343 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4344 if (netdev == NULL) {
4348 adapter = netdev_priv(netdev);
4349 adapter->pdev = pdev;
4350 pci_set_drvdata(pdev, adapter);
4351 adapter->netdev = netdev;
4352 SET_NETDEV_DEV(netdev, &pdev->dev);
4354 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4356 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4358 dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4361 netdev->features |= NETIF_F_HIGHDMA;
4363 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4365 status = dma_set_coherent_mask(&pdev->dev,
4368 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4373 status = pci_enable_pcie_error_reporting(pdev);
4375 dev_info(&pdev->dev, "Could not use PCIe error reporting\n");
4377 status = be_ctrl_init(adapter);
4381 /* sync up with fw's ready state */
4382 if (be_physfn(adapter)) {
4383 status = be_fw_wait_ready(adapter);
4388 if (be_reset_required(adapter)) {
4389 status = be_cmd_reset_function(adapter);
4393 /* Wait for interrupts to quiesce after an FLR */
4397 /* Allow interrupts for other ULPs running on NIC function */
4398 be_intr_set(adapter, true);
4400 /* tell fw we're ready to fire cmds */
4401 status = be_cmd_fw_init(adapter);
4405 status = be_stats_init(adapter);
4409 status = be_get_initial_config(adapter);
4413 INIT_DELAYED_WORK(&adapter->work, be_worker);
4414 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4415 adapter->rx_fc = adapter->tx_fc = true;
4417 status = be_setup(adapter);
4421 be_netdev_init(netdev);
4422 status = register_netdev(netdev);
4426 be_roce_dev_add(adapter);
4428 schedule_delayed_work(&adapter->func_recovery_work,
4429 msecs_to_jiffies(1000));
4431 be_cmd_query_port_name(adapter, &port_name);
4433 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4434 func_name(adapter), mc_name(adapter), port_name);
4441 be_stats_cleanup(adapter);
4443 be_ctrl_cleanup(adapter);
4445 free_netdev(netdev);
4446 pci_set_drvdata(pdev, NULL);
4448 pci_release_regions(pdev);
4450 pci_disable_device(pdev);
4452 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4456 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4458 struct be_adapter *adapter = pci_get_drvdata(pdev);
4459 struct net_device *netdev = adapter->netdev;
4462 be_setup_wol(adapter, true);
4464 cancel_delayed_work_sync(&adapter->func_recovery_work);
4466 netif_device_detach(netdev);
4467 if (netif_running(netdev)) {
4474 pci_save_state(pdev);
4475 pci_disable_device(pdev);
4476 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4480 static int be_resume(struct pci_dev *pdev)
4483 struct be_adapter *adapter = pci_get_drvdata(pdev);
4484 struct net_device *netdev = adapter->netdev;
4486 netif_device_detach(netdev);
4488 status = pci_enable_device(pdev);
4492 pci_set_power_state(pdev, PCI_D0);
4493 pci_restore_state(pdev);
4495 status = be_fw_wait_ready(adapter);
4499 /* tell fw we're ready to fire cmds */
4500 status = be_cmd_fw_init(adapter);
4505 if (netif_running(netdev)) {
4511 schedule_delayed_work(&adapter->func_recovery_work,
4512 msecs_to_jiffies(1000));
4513 netif_device_attach(netdev);
4516 be_setup_wol(adapter, false);
4522 * An FLR will stop BE from DMAing any data.
4524 static void be_shutdown(struct pci_dev *pdev)
4526 struct be_adapter *adapter = pci_get_drvdata(pdev);
4531 cancel_delayed_work_sync(&adapter->work);
4532 cancel_delayed_work_sync(&adapter->func_recovery_work);
4534 netif_device_detach(adapter->netdev);
4536 be_cmd_reset_function(adapter);
4538 pci_disable_device(pdev);
4541 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4542 pci_channel_state_t state)
4544 struct be_adapter *adapter = pci_get_drvdata(pdev);
4545 struct net_device *netdev = adapter->netdev;
4547 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4549 if (!adapter->eeh_error) {
4550 adapter->eeh_error = true;
4552 cancel_delayed_work_sync(&adapter->func_recovery_work);
4555 netif_device_detach(netdev);
4556 if (netif_running(netdev))
4563 if (state == pci_channel_io_perm_failure)
4564 return PCI_ERS_RESULT_DISCONNECT;
4566 pci_disable_device(pdev);
4568 /* The error could cause the FW to trigger a flash debug dump.
4569 * Resetting the card while flash dump is in progress
4570 * can cause it not to recover; wait for it to finish.
4571 * Wait only for first function as it is needed only once per
4574 if (pdev->devfn == 0)
4577 return PCI_ERS_RESULT_NEED_RESET;
4580 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4582 struct be_adapter *adapter = pci_get_drvdata(pdev);
4585 dev_info(&adapter->pdev->dev, "EEH reset\n");
4587 status = pci_enable_device(pdev);
4589 return PCI_ERS_RESULT_DISCONNECT;
4591 pci_set_master(pdev);
4592 pci_set_power_state(pdev, PCI_D0);
4593 pci_restore_state(pdev);
4595 /* Check if card is ok and fw is ready */
4596 dev_info(&adapter->pdev->dev,
4597 "Waiting for FW to be ready after EEH reset\n");
4598 status = be_fw_wait_ready(adapter);
4600 return PCI_ERS_RESULT_DISCONNECT;
4602 pci_cleanup_aer_uncorrect_error_status(pdev);
4603 be_clear_all_error(adapter);
4604 return PCI_ERS_RESULT_RECOVERED;
4607 static void be_eeh_resume(struct pci_dev *pdev)
4610 struct be_adapter *adapter = pci_get_drvdata(pdev);
4611 struct net_device *netdev = adapter->netdev;
4613 dev_info(&adapter->pdev->dev, "EEH resume\n");
4615 pci_save_state(pdev);
4617 status = be_cmd_reset_function(adapter);
4621 /* tell fw we're ready to fire cmds */
4622 status = be_cmd_fw_init(adapter);
4626 status = be_setup(adapter);
4630 if (netif_running(netdev)) {
4631 status = be_open(netdev);
4636 schedule_delayed_work(&adapter->func_recovery_work,
4637 msecs_to_jiffies(1000));
4638 netif_device_attach(netdev);
4641 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4644 static const struct pci_error_handlers be_eeh_handlers = {
4645 .error_detected = be_eeh_err_detected,
4646 .slot_reset = be_eeh_reset,
4647 .resume = be_eeh_resume,
4650 static struct pci_driver be_driver = {
4652 .id_table = be_dev_ids,
4654 .remove = be_remove,
4655 .suspend = be_suspend,
4656 .resume = be_resume,
4657 .shutdown = be_shutdown,
4658 .err_handler = &be_eeh_handlers
4661 static int __init be_init_module(void)
4663 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4664 rx_frag_size != 2048) {
4665 printk(KERN_WARNING DRV_NAME
4666 " : Module param rx_frag_size must be 2048/4096/8192."
4668 rx_frag_size = 2048;
4671 return pci_register_driver(&be_driver);
4673 module_init(be_init_module);
4675 static void __exit be_exit_module(void)
4677 pci_unregister_driver(&be_driver);
4679 module_exit(be_exit_module);