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>
25 #include <net/busy_poll.h>
27 MODULE_VERSION(DRV_VER);
28 MODULE_DEVICE_TABLE(pci, be_dev_ids);
29 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
30 MODULE_AUTHOR("Emulex Corporation");
31 MODULE_LICENSE("GPL");
33 static unsigned int num_vfs;
34 module_param(num_vfs, uint, S_IRUGO);
35 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
37 static ushort rx_frag_size = 2048;
38 module_param(rx_frag_size, ushort, S_IRUGO);
39 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
41 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
42 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
43 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
44 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
45 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
46 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
48 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
49 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
52 MODULE_DEVICE_TABLE(pci, be_dev_ids);
53 /* UE Status Low CSR */
54 static const char * const ue_status_low_desc[] = {
88 /* UE Status High CSR */
89 static const char * const ue_status_hi_desc[] = {
125 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
127 struct be_dma_mem *mem = &q->dma_mem;
129 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
135 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
136 u16 len, u16 entry_size)
138 struct be_dma_mem *mem = &q->dma_mem;
140 memset(q, 0, sizeof(*q));
142 q->entry_size = entry_size;
143 mem->size = len * entry_size;
144 mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
151 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
155 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
157 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
159 if (!enabled && enable)
160 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
161 else if (enabled && !enable)
162 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
166 pci_write_config_dword(adapter->pdev,
167 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
170 static void be_intr_set(struct be_adapter *adapter, bool enable)
174 /* On lancer interrupts can't be controlled via this register */
175 if (lancer_chip(adapter))
178 if (adapter->eeh_error)
181 status = be_cmd_intr_set(adapter, enable);
183 be_reg_intr_set(adapter, enable);
186 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
189 val |= qid & DB_RQ_RING_ID_MASK;
190 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
193 iowrite32(val, adapter->db + DB_RQ_OFFSET);
196 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
200 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
201 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
204 iowrite32(val, adapter->db + txo->db_offset);
207 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
208 bool arm, bool clear_int, u16 num_popped)
211 val |= qid & DB_EQ_RING_ID_MASK;
212 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
213 DB_EQ_RING_ID_EXT_MASK_SHIFT);
215 if (adapter->eeh_error)
219 val |= 1 << DB_EQ_REARM_SHIFT;
221 val |= 1 << DB_EQ_CLR_SHIFT;
222 val |= 1 << DB_EQ_EVNT_SHIFT;
223 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
224 iowrite32(val, adapter->db + DB_EQ_OFFSET);
227 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
230 val |= qid & DB_CQ_RING_ID_MASK;
231 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
232 DB_CQ_RING_ID_EXT_MASK_SHIFT);
234 if (adapter->eeh_error)
238 val |= 1 << DB_CQ_REARM_SHIFT;
239 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
240 iowrite32(val, adapter->db + DB_CQ_OFFSET);
243 static int be_mac_addr_set(struct net_device *netdev, void *p)
245 struct be_adapter *adapter = netdev_priv(netdev);
246 struct device *dev = &adapter->pdev->dev;
247 struct sockaddr *addr = p;
250 u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0;
252 if (!is_valid_ether_addr(addr->sa_data))
253 return -EADDRNOTAVAIL;
255 /* Proceed further only if, User provided MAC is different
258 if (ether_addr_equal(addr->sa_data, netdev->dev_addr))
261 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
262 * privilege or if PF did not provision the new MAC address.
263 * On BE3, this cmd will always fail if the VF doesn't have the
264 * FILTMGMT privilege. This failure is OK, only if the PF programmed
265 * the MAC for the VF.
267 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
268 adapter->if_handle, &adapter->pmac_id[0], 0);
270 curr_pmac_id = adapter->pmac_id[0];
272 /* Delete the old programmed MAC. This call may fail if the
273 * old MAC was already deleted by the PF driver.
275 if (adapter->pmac_id[0] != old_pmac_id)
276 be_cmd_pmac_del(adapter, adapter->if_handle,
280 /* Decide if the new MAC is successfully activated only after
283 status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac,
284 adapter->if_handle, true, 0);
288 /* The MAC change did not happen, either due to lack of privilege
289 * or PF didn't pre-provision.
291 if (!ether_addr_equal(addr->sa_data, mac)) {
296 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
297 dev_info(dev, "MAC address changed to %pM\n", mac);
300 dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
304 /* BE2 supports only v0 cmd */
305 static void *hw_stats_from_cmd(struct be_adapter *adapter)
307 if (BE2_chip(adapter)) {
308 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
310 return &cmd->hw_stats;
311 } else if (BE3_chip(adapter)) {
312 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
314 return &cmd->hw_stats;
316 struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;
318 return &cmd->hw_stats;
322 /* BE2 supports only v0 cmd */
323 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
325 if (BE2_chip(adapter)) {
326 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
328 return &hw_stats->erx;
329 } else if (BE3_chip(adapter)) {
330 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
332 return &hw_stats->erx;
334 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
336 return &hw_stats->erx;
340 static void populate_be_v0_stats(struct be_adapter *adapter)
342 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
343 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
344 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
345 struct be_port_rxf_stats_v0 *port_stats =
346 &rxf_stats->port[adapter->port_num];
347 struct be_drv_stats *drvs = &adapter->drv_stats;
349 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
350 drvs->rx_pause_frames = port_stats->rx_pause_frames;
351 drvs->rx_crc_errors = port_stats->rx_crc_errors;
352 drvs->rx_control_frames = port_stats->rx_control_frames;
353 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
354 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
355 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
356 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
357 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
358 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
359 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
360 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
361 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
362 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
363 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
364 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
365 drvs->rx_dropped_header_too_small =
366 port_stats->rx_dropped_header_too_small;
367 drvs->rx_address_filtered =
368 port_stats->rx_address_filtered +
369 port_stats->rx_vlan_filtered;
370 drvs->rx_alignment_symbol_errors =
371 port_stats->rx_alignment_symbol_errors;
373 drvs->tx_pauseframes = port_stats->tx_pauseframes;
374 drvs->tx_controlframes = port_stats->tx_controlframes;
376 if (adapter->port_num)
377 drvs->jabber_events = rxf_stats->port1_jabber_events;
379 drvs->jabber_events = rxf_stats->port0_jabber_events;
380 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
381 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
382 drvs->forwarded_packets = rxf_stats->forwarded_packets;
383 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
384 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
385 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
386 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
389 static void populate_be_v1_stats(struct be_adapter *adapter)
391 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
392 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
393 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
394 struct be_port_rxf_stats_v1 *port_stats =
395 &rxf_stats->port[adapter->port_num];
396 struct be_drv_stats *drvs = &adapter->drv_stats;
398 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
399 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
400 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
401 drvs->rx_pause_frames = port_stats->rx_pause_frames;
402 drvs->rx_crc_errors = port_stats->rx_crc_errors;
403 drvs->rx_control_frames = port_stats->rx_control_frames;
404 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
405 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
406 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
407 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
408 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
409 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
410 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
411 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
412 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
413 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
414 drvs->rx_dropped_header_too_small =
415 port_stats->rx_dropped_header_too_small;
416 drvs->rx_input_fifo_overflow_drop =
417 port_stats->rx_input_fifo_overflow_drop;
418 drvs->rx_address_filtered = port_stats->rx_address_filtered;
419 drvs->rx_alignment_symbol_errors =
420 port_stats->rx_alignment_symbol_errors;
421 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
422 drvs->tx_pauseframes = port_stats->tx_pauseframes;
423 drvs->tx_controlframes = port_stats->tx_controlframes;
424 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
425 drvs->jabber_events = port_stats->jabber_events;
426 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
427 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
428 drvs->forwarded_packets = rxf_stats->forwarded_packets;
429 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
430 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
431 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
432 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
435 static void populate_be_v2_stats(struct be_adapter *adapter)
437 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
438 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
439 struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
440 struct be_port_rxf_stats_v2 *port_stats =
441 &rxf_stats->port[adapter->port_num];
442 struct be_drv_stats *drvs = &adapter->drv_stats;
444 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
445 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
446 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
447 drvs->rx_pause_frames = port_stats->rx_pause_frames;
448 drvs->rx_crc_errors = port_stats->rx_crc_errors;
449 drvs->rx_control_frames = port_stats->rx_control_frames;
450 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
451 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
452 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
453 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
454 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
455 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
456 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
457 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
458 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
459 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
460 drvs->rx_dropped_header_too_small =
461 port_stats->rx_dropped_header_too_small;
462 drvs->rx_input_fifo_overflow_drop =
463 port_stats->rx_input_fifo_overflow_drop;
464 drvs->rx_address_filtered = port_stats->rx_address_filtered;
465 drvs->rx_alignment_symbol_errors =
466 port_stats->rx_alignment_symbol_errors;
467 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
468 drvs->tx_pauseframes = port_stats->tx_pauseframes;
469 drvs->tx_controlframes = port_stats->tx_controlframes;
470 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
471 drvs->jabber_events = port_stats->jabber_events;
472 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
473 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
474 drvs->forwarded_packets = rxf_stats->forwarded_packets;
475 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
476 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
477 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
478 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
479 if (be_roce_supported(adapter)) {
480 drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
481 drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
482 drvs->rx_roce_frames = port_stats->roce_frames_received;
483 drvs->roce_drops_crc = port_stats->roce_drops_crc;
484 drvs->roce_drops_payload_len =
485 port_stats->roce_drops_payload_len;
489 static void populate_lancer_stats(struct be_adapter *adapter)
492 struct be_drv_stats *drvs = &adapter->drv_stats;
493 struct lancer_pport_stats *pport_stats =
494 pport_stats_from_cmd(adapter);
496 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
497 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
498 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
499 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
500 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
501 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
502 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
503 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
504 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
505 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
506 drvs->rx_dropped_tcp_length =
507 pport_stats->rx_dropped_invalid_tcp_length;
508 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
509 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
510 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
511 drvs->rx_dropped_header_too_small =
512 pport_stats->rx_dropped_header_too_small;
513 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
514 drvs->rx_address_filtered =
515 pport_stats->rx_address_filtered +
516 pport_stats->rx_vlan_filtered;
517 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
518 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
519 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
520 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
521 drvs->jabber_events = pport_stats->rx_jabbers;
522 drvs->forwarded_packets = pport_stats->num_forwards_lo;
523 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
524 drvs->rx_drops_too_many_frags =
525 pport_stats->rx_drops_too_many_frags_lo;
528 static void accumulate_16bit_val(u32 *acc, u16 val)
530 #define lo(x) (x & 0xFFFF)
531 #define hi(x) (x & 0xFFFF0000)
532 bool wrapped = val < lo(*acc);
533 u32 newacc = hi(*acc) + val;
537 ACCESS_ONCE(*acc) = newacc;
540 static void populate_erx_stats(struct be_adapter *adapter,
541 struct be_rx_obj *rxo,
544 if (!BEx_chip(adapter))
545 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
547 /* below erx HW counter can actually wrap around after
548 * 65535. Driver accumulates a 32-bit value
550 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
554 void be_parse_stats(struct be_adapter *adapter)
556 struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
557 struct be_rx_obj *rxo;
561 if (lancer_chip(adapter)) {
562 populate_lancer_stats(adapter);
564 if (BE2_chip(adapter))
565 populate_be_v0_stats(adapter);
566 else if (BE3_chip(adapter))
568 populate_be_v1_stats(adapter);
570 populate_be_v2_stats(adapter);
572 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
573 for_all_rx_queues(adapter, rxo, i) {
574 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
575 populate_erx_stats(adapter, rxo, erx_stat);
580 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
581 struct rtnl_link_stats64 *stats)
583 struct be_adapter *adapter = netdev_priv(netdev);
584 struct be_drv_stats *drvs = &adapter->drv_stats;
585 struct be_rx_obj *rxo;
586 struct be_tx_obj *txo;
591 for_all_rx_queues(adapter, rxo, i) {
592 const struct be_rx_stats *rx_stats = rx_stats(rxo);
594 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
595 pkts = rx_stats(rxo)->rx_pkts;
596 bytes = rx_stats(rxo)->rx_bytes;
597 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
598 stats->rx_packets += pkts;
599 stats->rx_bytes += bytes;
600 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
601 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
602 rx_stats(rxo)->rx_drops_no_frags;
605 for_all_tx_queues(adapter, txo, i) {
606 const struct be_tx_stats *tx_stats = tx_stats(txo);
608 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
609 pkts = tx_stats(txo)->tx_pkts;
610 bytes = tx_stats(txo)->tx_bytes;
611 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
612 stats->tx_packets += pkts;
613 stats->tx_bytes += bytes;
616 /* bad pkts received */
617 stats->rx_errors = drvs->rx_crc_errors +
618 drvs->rx_alignment_symbol_errors +
619 drvs->rx_in_range_errors +
620 drvs->rx_out_range_errors +
621 drvs->rx_frame_too_long +
622 drvs->rx_dropped_too_small +
623 drvs->rx_dropped_too_short +
624 drvs->rx_dropped_header_too_small +
625 drvs->rx_dropped_tcp_length +
626 drvs->rx_dropped_runt;
628 /* detailed rx errors */
629 stats->rx_length_errors = drvs->rx_in_range_errors +
630 drvs->rx_out_range_errors +
631 drvs->rx_frame_too_long;
633 stats->rx_crc_errors = drvs->rx_crc_errors;
635 /* frame alignment errors */
636 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
638 /* receiver fifo overrun */
639 /* drops_no_pbuf is no per i/f, it's per BE card */
640 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
641 drvs->rx_input_fifo_overflow_drop +
642 drvs->rx_drops_no_pbuf;
646 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
648 struct net_device *netdev = adapter->netdev;
650 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
651 netif_carrier_off(netdev);
652 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
655 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
656 netif_carrier_on(netdev);
658 netif_carrier_off(netdev);
661 static void be_tx_stats_update(struct be_tx_obj *txo,
662 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
664 struct be_tx_stats *stats = tx_stats(txo);
666 u64_stats_update_begin(&stats->sync);
668 stats->tx_wrbs += wrb_cnt;
669 stats->tx_bytes += copied;
670 stats->tx_pkts += (gso_segs ? gso_segs : 1);
673 u64_stats_update_end(&stats->sync);
676 /* Determine number of WRB entries needed to xmit data in an skb */
677 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
680 int cnt = (skb->len > skb->data_len);
682 cnt += skb_shinfo(skb)->nr_frags;
684 /* to account for hdr wrb */
686 if (lancer_chip(adapter) || !(cnt & 1)) {
689 /* add a dummy to make it an even num */
693 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
697 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
699 wrb->frag_pa_hi = upper_32_bits(addr);
700 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
701 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
705 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
711 vlan_tag = vlan_tx_tag_get(skb);
712 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
713 /* If vlan priority provided by OS is NOT in available bmap */
714 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
715 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
716 adapter->recommended_prio;
721 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
722 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
726 memset(hdr, 0, sizeof(*hdr));
728 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
730 if (skb_is_gso(skb)) {
731 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
732 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
733 hdr, skb_shinfo(skb)->gso_size);
734 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
735 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
736 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
738 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
739 else if (is_udp_pkt(skb))
740 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
743 if (vlan_tx_tag_present(skb)) {
744 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
745 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
746 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
749 /* To skip HW VLAN tagging: evt = 1, compl = 0 */
750 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
751 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
752 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
753 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
756 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
761 be_dws_le_to_cpu(wrb, sizeof(*wrb));
763 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
766 dma_unmap_single(dev, dma, wrb->frag_len,
769 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
773 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
774 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
779 struct device *dev = &adapter->pdev->dev;
780 struct sk_buff *first_skb = skb;
781 struct be_eth_wrb *wrb;
782 struct be_eth_hdr_wrb *hdr;
783 bool map_single = false;
786 hdr = queue_head_node(txq);
788 map_head = txq->head;
790 if (skb->len > skb->data_len) {
791 int len = skb_headlen(skb);
792 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
793 if (dma_mapping_error(dev, busaddr))
796 wrb = queue_head_node(txq);
797 wrb_fill(wrb, busaddr, len);
798 be_dws_cpu_to_le(wrb, sizeof(*wrb));
803 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
804 const struct skb_frag_struct *frag =
805 &skb_shinfo(skb)->frags[i];
806 busaddr = skb_frag_dma_map(dev, frag, 0,
807 skb_frag_size(frag), DMA_TO_DEVICE);
808 if (dma_mapping_error(dev, busaddr))
810 wrb = queue_head_node(txq);
811 wrb_fill(wrb, busaddr, skb_frag_size(frag));
812 be_dws_cpu_to_le(wrb, sizeof(*wrb));
814 copied += skb_frag_size(frag);
818 wrb = queue_head_node(txq);
820 be_dws_cpu_to_le(wrb, sizeof(*wrb));
824 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
825 be_dws_cpu_to_le(hdr, sizeof(*hdr));
829 txq->head = map_head;
831 wrb = queue_head_node(txq);
832 unmap_tx_frag(dev, wrb, map_single);
834 copied -= wrb->frag_len;
840 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
846 skb = skb_share_check(skb, GFP_ATOMIC);
850 if (vlan_tx_tag_present(skb))
851 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
853 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
855 vlan_tag = adapter->pvid;
856 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
857 * skip VLAN insertion
860 *skip_hw_vlan = true;
864 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
870 /* Insert the outer VLAN, if any */
871 if (adapter->qnq_vid) {
872 vlan_tag = adapter->qnq_vid;
873 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
877 *skip_hw_vlan = true;
883 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
885 struct ethhdr *eh = (struct ethhdr *)skb->data;
886 u16 offset = ETH_HLEN;
888 if (eh->h_proto == htons(ETH_P_IPV6)) {
889 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
891 offset += sizeof(struct ipv6hdr);
892 if (ip6h->nexthdr != NEXTHDR_TCP &&
893 ip6h->nexthdr != NEXTHDR_UDP) {
894 struct ipv6_opt_hdr *ehdr =
895 (struct ipv6_opt_hdr *) (skb->data + offset);
897 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
898 if (ehdr->hdrlen == 0xff)
905 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
907 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
910 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
913 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
916 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
920 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
921 unsigned int eth_hdr_len;
924 /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less
925 * may cause a transmit stall on that port. So the work-around is to
926 * pad short packets (<= 32 bytes) to a 36-byte length.
928 if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
929 if (skb_padto(skb, 36))
934 /* For padded packets, BE HW modifies tot_len field in IP header
935 * incorrecly when VLAN tag is inserted by HW.
936 * For padded packets, Lancer computes incorrect checksum.
938 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
939 VLAN_ETH_HLEN : ETH_HLEN;
940 if (skb->len <= 60 &&
941 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
943 ip = (struct iphdr *)ip_hdr(skb);
944 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
947 /* If vlan tag is already inlined in the packet, skip HW VLAN
948 * tagging in UMC mode
950 if ((adapter->function_mode & UMC_ENABLED) &&
951 veh->h_vlan_proto == htons(ETH_P_8021Q))
952 *skip_hw_vlan = true;
954 /* HW has a bug wherein it will calculate CSUM for VLAN
955 * pkts even though it is disabled.
956 * Manually insert VLAN in pkt.
958 if (skb->ip_summed != CHECKSUM_PARTIAL &&
959 vlan_tx_tag_present(skb)) {
960 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
965 /* HW may lockup when VLAN HW tagging is requested on
966 * certain ipv6 packets. Drop such pkts if the HW workaround to
967 * skip HW tagging is not enabled by FW.
969 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
970 (adapter->pvid || adapter->qnq_vid) &&
971 !qnq_async_evt_rcvd(adapter)))
974 /* Manual VLAN tag insertion to prevent:
975 * ASIC lockup when the ASIC inserts VLAN tag into
976 * certain ipv6 packets. Insert VLAN tags in driver,
977 * and set event, completion, vlan bits accordingly
980 if (be_ipv6_tx_stall_chk(adapter, skb) &&
981 be_vlan_tag_tx_chk(adapter, skb)) {
982 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
989 dev_kfree_skb_any(skb);
994 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
996 struct be_adapter *adapter = netdev_priv(netdev);
997 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
998 struct be_queue_info *txq = &txo->q;
999 bool dummy_wrb, stopped = false;
1000 u32 wrb_cnt = 0, copied = 0;
1001 bool skip_hw_vlan = false;
1002 u32 start = txq->head;
1004 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
1006 tx_stats(txo)->tx_drv_drops++;
1007 return NETDEV_TX_OK;
1010 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
1012 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
1015 int gso_segs = skb_shinfo(skb)->gso_segs;
1017 /* record the sent skb in the sent_skb table */
1018 BUG_ON(txo->sent_skb_list[start]);
1019 txo->sent_skb_list[start] = skb;
1021 /* Ensure txq has space for the next skb; Else stop the queue
1022 * *BEFORE* ringing the tx doorbell, so that we serialze the
1023 * tx compls of the current transmit which'll wake up the queue
1025 atomic_add(wrb_cnt, &txq->used);
1026 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
1028 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
1032 be_txq_notify(adapter, txo, wrb_cnt);
1034 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
1037 tx_stats(txo)->tx_drv_drops++;
1038 dev_kfree_skb_any(skb);
1040 return NETDEV_TX_OK;
1043 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1045 struct be_adapter *adapter = netdev_priv(netdev);
1046 if (new_mtu < BE_MIN_MTU ||
1047 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
1048 (ETH_HLEN + ETH_FCS_LEN))) {
1049 dev_info(&adapter->pdev->dev,
1050 "MTU must be between %d and %d bytes\n",
1052 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
1055 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
1056 netdev->mtu, new_mtu);
1057 netdev->mtu = new_mtu;
1062 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1063 * If the user configures more, place BE in vlan promiscuous mode.
1065 static int be_vid_config(struct be_adapter *adapter)
1067 u16 vids[BE_NUM_VLANS_SUPPORTED];
1071 /* No need to further configure vids if in promiscuous mode */
1072 if (adapter->promiscuous)
1075 if (adapter->vlans_added > be_max_vlans(adapter))
1076 goto set_vlan_promisc;
1078 /* Construct VLAN Table to give to HW */
1079 for (i = 0; i < VLAN_N_VID; i++)
1080 if (adapter->vlan_tag[i])
1081 vids[num++] = cpu_to_le16(i);
1083 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1087 /* Set to VLAN promisc mode as setting VLAN filter failed */
1088 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
1089 goto set_vlan_promisc;
1090 dev_err(&adapter->pdev->dev,
1091 "Setting HW VLAN filtering failed.\n");
1093 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1094 /* hw VLAN filtering re-enabled. */
1095 status = be_cmd_rx_filter(adapter,
1096 BE_FLAGS_VLAN_PROMISC, OFF);
1098 dev_info(&adapter->pdev->dev,
1099 "Disabling VLAN Promiscuous mode.\n");
1100 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1108 if (adapter->flags & BE_FLAGS_VLAN_PROMISC)
1111 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1113 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1114 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1116 dev_err(&adapter->pdev->dev,
1117 "Failed to enable VLAN Promiscuous mode.\n");
1121 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1123 struct be_adapter *adapter = netdev_priv(netdev);
1126 /* Packets with VID 0 are always received by Lancer by default */
1127 if (lancer_chip(adapter) && vid == 0)
1130 adapter->vlan_tag[vid] = 1;
1131 adapter->vlans_added++;
1133 status = be_vid_config(adapter);
1135 adapter->vlans_added--;
1136 adapter->vlan_tag[vid] = 0;
1142 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1144 struct be_adapter *adapter = netdev_priv(netdev);
1147 /* Packets with VID 0 are always received by Lancer by default */
1148 if (lancer_chip(adapter) && vid == 0)
1151 adapter->vlan_tag[vid] = 0;
1152 status = be_vid_config(adapter);
1154 adapter->vlans_added--;
1156 adapter->vlan_tag[vid] = 1;
1161 static void be_clear_promisc(struct be_adapter *adapter)
1163 adapter->promiscuous = false;
1164 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1166 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1169 static void be_set_rx_mode(struct net_device *netdev)
1171 struct be_adapter *adapter = netdev_priv(netdev);
1174 if (netdev->flags & IFF_PROMISC) {
1175 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1176 adapter->promiscuous = true;
1180 /* BE was previously in promiscuous mode; disable it */
1181 if (adapter->promiscuous) {
1182 be_clear_promisc(adapter);
1183 if (adapter->vlans_added)
1184 be_vid_config(adapter);
1187 /* Enable multicast promisc if num configured exceeds what we support */
1188 if (netdev->flags & IFF_ALLMULTI ||
1189 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1190 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1194 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1195 struct netdev_hw_addr *ha;
1196 int i = 1; /* First slot is claimed by the Primary MAC */
1198 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1199 be_cmd_pmac_del(adapter, adapter->if_handle,
1200 adapter->pmac_id[i], 0);
1203 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1204 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1205 adapter->promiscuous = true;
1209 netdev_for_each_uc_addr(ha, adapter->netdev) {
1210 adapter->uc_macs++; /* First slot is for Primary MAC */
1211 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1213 &adapter->pmac_id[adapter->uc_macs], 0);
1217 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1219 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1221 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1222 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1223 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1229 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1231 struct be_adapter *adapter = netdev_priv(netdev);
1232 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1235 if (!sriov_enabled(adapter))
1238 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1241 if (BEx_chip(adapter)) {
1242 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1245 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1246 &vf_cfg->pmac_id, vf + 1);
1248 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1253 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1256 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1261 static int be_get_vf_config(struct net_device *netdev, int vf,
1262 struct ifla_vf_info *vi)
1264 struct be_adapter *adapter = netdev_priv(netdev);
1265 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1267 if (!sriov_enabled(adapter))
1270 if (vf >= adapter->num_vfs)
1274 vi->tx_rate = vf_cfg->tx_rate;
1275 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1276 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1277 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1282 static int be_set_vf_vlan(struct net_device *netdev,
1283 int vf, u16 vlan, u8 qos)
1285 struct be_adapter *adapter = netdev_priv(netdev);
1286 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1289 if (!sriov_enabled(adapter))
1292 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1296 vlan |= qos << VLAN_PRIO_SHIFT;
1297 if (vf_cfg->vlan_tag != vlan)
1298 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1299 vf_cfg->if_handle, 0);
1301 /* Reset Transparent Vlan Tagging. */
1302 status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID,
1303 vf + 1, vf_cfg->if_handle, 0);
1307 vf_cfg->vlan_tag = vlan;
1309 dev_info(&adapter->pdev->dev,
1310 "VLAN %d config on VF %d failed\n", vlan, vf);
1314 static int be_set_vf_tx_rate(struct net_device *netdev,
1317 struct be_adapter *adapter = netdev_priv(netdev);
1320 if (!sriov_enabled(adapter))
1323 if (vf >= adapter->num_vfs)
1326 if (rate < 100 || rate > 10000) {
1327 dev_err(&adapter->pdev->dev,
1328 "tx rate must be between 100 and 10000 Mbps\n");
1332 if (lancer_chip(adapter))
1333 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1335 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1338 dev_err(&adapter->pdev->dev,
1339 "tx rate %d on VF %d failed\n", rate, vf);
1341 adapter->vf_cfg[vf].tx_rate = rate;
1345 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1348 aic->rx_pkts_prev = rx_pkts;
1349 aic->tx_reqs_prev = tx_pkts;
1353 static void be_eqd_update(struct be_adapter *adapter)
1355 struct be_set_eqd set_eqd[MAX_EVT_QS];
1356 int eqd, i, num = 0, start;
1357 struct be_aic_obj *aic;
1358 struct be_eq_obj *eqo;
1359 struct be_rx_obj *rxo;
1360 struct be_tx_obj *txo;
1361 u64 rx_pkts, tx_pkts;
1365 for_all_evt_queues(adapter, eqo, i) {
1366 aic = &adapter->aic_obj[eqo->idx];
1374 rxo = &adapter->rx_obj[eqo->idx];
1376 start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
1377 rx_pkts = rxo->stats.rx_pkts;
1378 } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
1380 txo = &adapter->tx_obj[eqo->idx];
1382 start = u64_stats_fetch_begin_bh(&txo->stats.sync);
1383 tx_pkts = txo->stats.tx_reqs;
1384 } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
1387 /* Skip, if wrapped around or first calculation */
1389 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1390 rx_pkts < aic->rx_pkts_prev ||
1391 tx_pkts < aic->tx_reqs_prev) {
1392 be_aic_update(aic, rx_pkts, tx_pkts, now);
1396 delta = jiffies_to_msecs(now - aic->jiffies);
1397 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1398 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1399 eqd = (pps / 15000) << 2;
1403 eqd = min_t(u32, eqd, aic->max_eqd);
1404 eqd = max_t(u32, eqd, aic->min_eqd);
1406 be_aic_update(aic, rx_pkts, tx_pkts, now);
1408 if (eqd != aic->prev_eqd) {
1409 set_eqd[num].delay_multiplier = (eqd * 65)/100;
1410 set_eqd[num].eq_id = eqo->q.id;
1411 aic->prev_eqd = eqd;
1417 be_cmd_modify_eqd(adapter, set_eqd, num);
1420 static void be_rx_stats_update(struct be_rx_obj *rxo,
1421 struct be_rx_compl_info *rxcp)
1423 struct be_rx_stats *stats = rx_stats(rxo);
1425 u64_stats_update_begin(&stats->sync);
1427 stats->rx_bytes += rxcp->pkt_size;
1429 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1430 stats->rx_mcast_pkts++;
1432 stats->rx_compl_err++;
1433 u64_stats_update_end(&stats->sync);
1436 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1438 /* L4 checksum is not reliable for non TCP/UDP packets.
1439 * Also ignore ipcksm for ipv6 pkts */
1440 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1441 (rxcp->ip_csum || rxcp->ipv6);
1444 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
1446 struct be_adapter *adapter = rxo->adapter;
1447 struct be_rx_page_info *rx_page_info;
1448 struct be_queue_info *rxq = &rxo->q;
1449 u16 frag_idx = rxq->tail;
1451 rx_page_info = &rxo->page_info_tbl[frag_idx];
1452 BUG_ON(!rx_page_info->page);
1454 if (rx_page_info->last_page_user) {
1455 dma_unmap_page(&adapter->pdev->dev,
1456 dma_unmap_addr(rx_page_info, bus),
1457 adapter->big_page_size, DMA_FROM_DEVICE);
1458 rx_page_info->last_page_user = false;
1461 queue_tail_inc(rxq);
1462 atomic_dec(&rxq->used);
1463 return rx_page_info;
1466 /* Throwaway the data in the Rx completion */
1467 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1468 struct be_rx_compl_info *rxcp)
1470 struct be_rx_page_info *page_info;
1471 u16 i, num_rcvd = rxcp->num_rcvd;
1473 for (i = 0; i < num_rcvd; i++) {
1474 page_info = get_rx_page_info(rxo);
1475 put_page(page_info->page);
1476 memset(page_info, 0, sizeof(*page_info));
1481 * skb_fill_rx_data forms a complete skb for an ether frame
1482 * indicated by rxcp.
1484 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1485 struct be_rx_compl_info *rxcp)
1487 struct be_rx_page_info *page_info;
1489 u16 hdr_len, curr_frag_len, remaining;
1492 page_info = get_rx_page_info(rxo);
1493 start = page_address(page_info->page) + page_info->page_offset;
1496 /* Copy data in the first descriptor of this completion */
1497 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1499 skb->len = curr_frag_len;
1500 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1501 memcpy(skb->data, start, curr_frag_len);
1502 /* Complete packet has now been moved to data */
1503 put_page(page_info->page);
1505 skb->tail += curr_frag_len;
1508 memcpy(skb->data, start, hdr_len);
1509 skb_shinfo(skb)->nr_frags = 1;
1510 skb_frag_set_page(skb, 0, page_info->page);
1511 skb_shinfo(skb)->frags[0].page_offset =
1512 page_info->page_offset + hdr_len;
1513 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1514 skb->data_len = curr_frag_len - hdr_len;
1515 skb->truesize += rx_frag_size;
1516 skb->tail += hdr_len;
1518 page_info->page = NULL;
1520 if (rxcp->pkt_size <= rx_frag_size) {
1521 BUG_ON(rxcp->num_rcvd != 1);
1525 /* More frags present for this completion */
1526 remaining = rxcp->pkt_size - curr_frag_len;
1527 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1528 page_info = get_rx_page_info(rxo);
1529 curr_frag_len = min(remaining, rx_frag_size);
1531 /* Coalesce all frags from the same physical page in one slot */
1532 if (page_info->page_offset == 0) {
1535 skb_frag_set_page(skb, j, page_info->page);
1536 skb_shinfo(skb)->frags[j].page_offset =
1537 page_info->page_offset;
1538 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1539 skb_shinfo(skb)->nr_frags++;
1541 put_page(page_info->page);
1544 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1545 skb->len += curr_frag_len;
1546 skb->data_len += curr_frag_len;
1547 skb->truesize += rx_frag_size;
1548 remaining -= curr_frag_len;
1549 page_info->page = NULL;
1551 BUG_ON(j > MAX_SKB_FRAGS);
1554 /* Process the RX completion indicated by rxcp when GRO is disabled */
1555 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1556 struct be_rx_compl_info *rxcp)
1558 struct be_adapter *adapter = rxo->adapter;
1559 struct net_device *netdev = adapter->netdev;
1560 struct sk_buff *skb;
1562 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1563 if (unlikely(!skb)) {
1564 rx_stats(rxo)->rx_drops_no_skbs++;
1565 be_rx_compl_discard(rxo, rxcp);
1569 skb_fill_rx_data(rxo, skb, rxcp);
1571 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1572 skb->ip_summed = CHECKSUM_UNNECESSARY;
1574 skb_checksum_none_assert(skb);
1576 skb->protocol = eth_type_trans(skb, netdev);
1577 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1578 if (netdev->features & NETIF_F_RXHASH)
1579 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1580 skb_mark_napi_id(skb, napi);
1583 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1585 netif_receive_skb(skb);
1588 /* Process the RX completion indicated by rxcp when GRO is enabled */
1589 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1590 struct napi_struct *napi,
1591 struct be_rx_compl_info *rxcp)
1593 struct be_adapter *adapter = rxo->adapter;
1594 struct be_rx_page_info *page_info;
1595 struct sk_buff *skb = NULL;
1596 u16 remaining, curr_frag_len;
1599 skb = napi_get_frags(napi);
1601 be_rx_compl_discard(rxo, rxcp);
1605 remaining = rxcp->pkt_size;
1606 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1607 page_info = get_rx_page_info(rxo);
1609 curr_frag_len = min(remaining, rx_frag_size);
1611 /* Coalesce all frags from the same physical page in one slot */
1612 if (i == 0 || page_info->page_offset == 0) {
1613 /* First frag or Fresh page */
1615 skb_frag_set_page(skb, j, page_info->page);
1616 skb_shinfo(skb)->frags[j].page_offset =
1617 page_info->page_offset;
1618 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1620 put_page(page_info->page);
1622 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1623 skb->truesize += rx_frag_size;
1624 remaining -= curr_frag_len;
1625 memset(page_info, 0, sizeof(*page_info));
1627 BUG_ON(j > MAX_SKB_FRAGS);
1629 skb_shinfo(skb)->nr_frags = j + 1;
1630 skb->len = rxcp->pkt_size;
1631 skb->data_len = rxcp->pkt_size;
1632 skb->ip_summed = CHECKSUM_UNNECESSARY;
1633 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1634 if (adapter->netdev->features & NETIF_F_RXHASH)
1635 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1636 skb_mark_napi_id(skb, napi);
1639 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1641 napi_gro_frags(napi);
1644 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1645 struct be_rx_compl_info *rxcp)
1648 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1649 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1650 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1651 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1652 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1654 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1656 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1658 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1660 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1662 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1664 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1666 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1668 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1671 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1674 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1675 struct be_rx_compl_info *rxcp)
1678 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1679 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1680 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1681 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1682 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1684 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1686 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1688 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1690 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1692 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1694 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1696 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1698 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1701 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1702 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1706 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1708 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1709 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1710 struct be_adapter *adapter = rxo->adapter;
1712 /* For checking the valid bit it is Ok to use either definition as the
1713 * valid bit is at the same position in both v0 and v1 Rx compl */
1714 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1718 be_dws_le_to_cpu(compl, sizeof(*compl));
1720 if (adapter->be3_native)
1721 be_parse_rx_compl_v1(compl, rxcp);
1723 be_parse_rx_compl_v0(compl, rxcp);
1729 /* vlanf could be wrongly set in some cards.
1730 * ignore if vtm is not set */
1731 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1734 if (!lancer_chip(adapter))
1735 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1737 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1738 !adapter->vlan_tag[rxcp->vlan_tag])
1742 /* As the compl has been parsed, reset it; we wont touch it again */
1743 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1745 queue_tail_inc(&rxo->cq);
1749 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1751 u32 order = get_order(size);
1755 return alloc_pages(gfp, order);
1759 * Allocate a page, split it to fragments of size rx_frag_size and post as
1760 * receive buffers to BE
1762 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1764 struct be_adapter *adapter = rxo->adapter;
1765 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1766 struct be_queue_info *rxq = &rxo->q;
1767 struct page *pagep = NULL;
1768 struct device *dev = &adapter->pdev->dev;
1769 struct be_eth_rx_d *rxd;
1770 u64 page_dmaaddr = 0, frag_dmaaddr;
1771 u32 posted, page_offset = 0;
1773 page_info = &rxo->page_info_tbl[rxq->head];
1774 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1776 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1777 if (unlikely(!pagep)) {
1778 rx_stats(rxo)->rx_post_fail++;
1781 page_dmaaddr = dma_map_page(dev, pagep, 0,
1782 adapter->big_page_size,
1784 if (dma_mapping_error(dev, page_dmaaddr)) {
1787 rx_stats(rxo)->rx_post_fail++;
1790 page_info->page_offset = 0;
1793 page_info->page_offset = page_offset + rx_frag_size;
1795 page_offset = page_info->page_offset;
1796 page_info->page = pagep;
1797 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1798 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1800 rxd = queue_head_node(rxq);
1801 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1802 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1804 /* Any space left in the current big page for another frag? */
1805 if ((page_offset + rx_frag_size + rx_frag_size) >
1806 adapter->big_page_size) {
1808 page_info->last_page_user = true;
1811 prev_page_info = page_info;
1812 queue_head_inc(rxq);
1813 page_info = &rxo->page_info_tbl[rxq->head];
1816 prev_page_info->last_page_user = true;
1819 atomic_add(posted, &rxq->used);
1820 if (rxo->rx_post_starved)
1821 rxo->rx_post_starved = false;
1822 be_rxq_notify(adapter, rxq->id, posted);
1823 } else if (atomic_read(&rxq->used) == 0) {
1824 /* Let be_worker replenish when memory is available */
1825 rxo->rx_post_starved = true;
1829 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1831 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1833 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1837 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1839 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1841 queue_tail_inc(tx_cq);
1845 static u16 be_tx_compl_process(struct be_adapter *adapter,
1846 struct be_tx_obj *txo, u16 last_index)
1848 struct be_queue_info *txq = &txo->q;
1849 struct be_eth_wrb *wrb;
1850 struct sk_buff **sent_skbs = txo->sent_skb_list;
1851 struct sk_buff *sent_skb;
1852 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1853 bool unmap_skb_hdr = true;
1855 sent_skb = sent_skbs[txq->tail];
1857 sent_skbs[txq->tail] = NULL;
1859 /* skip header wrb */
1860 queue_tail_inc(txq);
1863 cur_index = txq->tail;
1864 wrb = queue_tail_node(txq);
1865 unmap_tx_frag(&adapter->pdev->dev, wrb,
1866 (unmap_skb_hdr && skb_headlen(sent_skb)));
1867 unmap_skb_hdr = false;
1870 queue_tail_inc(txq);
1871 } while (cur_index != last_index);
1873 kfree_skb(sent_skb);
1877 /* Return the number of events in the event queue */
1878 static inline int events_get(struct be_eq_obj *eqo)
1880 struct be_eq_entry *eqe;
1884 eqe = queue_tail_node(&eqo->q);
1891 queue_tail_inc(&eqo->q);
1897 /* Leaves the EQ is disarmed state */
1898 static void be_eq_clean(struct be_eq_obj *eqo)
1900 int num = events_get(eqo);
1902 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1905 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1907 struct be_rx_page_info *page_info;
1908 struct be_queue_info *rxq = &rxo->q;
1909 struct be_queue_info *rx_cq = &rxo->cq;
1910 struct be_rx_compl_info *rxcp;
1911 struct be_adapter *adapter = rxo->adapter;
1914 /* Consume pending rx completions.
1915 * Wait for the flush completion (identified by zero num_rcvd)
1916 * to arrive. Notify CQ even when there are no more CQ entries
1917 * for HW to flush partially coalesced CQ entries.
1918 * In Lancer, there is no need to wait for flush compl.
1921 rxcp = be_rx_compl_get(rxo);
1923 if (lancer_chip(adapter))
1926 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1927 dev_warn(&adapter->pdev->dev,
1928 "did not receive flush compl\n");
1931 be_cq_notify(adapter, rx_cq->id, true, 0);
1934 be_rx_compl_discard(rxo, rxcp);
1935 be_cq_notify(adapter, rx_cq->id, false, 1);
1936 if (rxcp->num_rcvd == 0)
1941 /* After cleanup, leave the CQ in unarmed state */
1942 be_cq_notify(adapter, rx_cq->id, false, 0);
1944 /* Then free posted rx buffers that were not used */
1945 while (atomic_read(&rxq->used) > 0) {
1946 page_info = get_rx_page_info(rxo);
1947 put_page(page_info->page);
1948 memset(page_info, 0, sizeof(*page_info));
1950 BUG_ON(atomic_read(&rxq->used));
1951 rxq->tail = rxq->head = 0;
1954 static void be_tx_compl_clean(struct be_adapter *adapter)
1956 struct be_tx_obj *txo;
1957 struct be_queue_info *txq;
1958 struct be_eth_tx_compl *txcp;
1959 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1960 struct sk_buff *sent_skb;
1962 int i, pending_txqs;
1964 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1966 pending_txqs = adapter->num_tx_qs;
1968 for_all_tx_queues(adapter, txo, i) {
1970 while ((txcp = be_tx_compl_get(&txo->cq))) {
1972 AMAP_GET_BITS(struct amap_eth_tx_compl,
1974 num_wrbs += be_tx_compl_process(adapter, txo,
1979 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1980 atomic_sub(num_wrbs, &txq->used);
1984 if (atomic_read(&txq->used) == 0)
1988 if (pending_txqs == 0 || ++timeo > 200)
1994 for_all_tx_queues(adapter, txo, i) {
1996 if (atomic_read(&txq->used))
1997 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1998 atomic_read(&txq->used));
2000 /* free posted tx for which compls will never arrive */
2001 while (atomic_read(&txq->used)) {
2002 sent_skb = txo->sent_skb_list[txq->tail];
2003 end_idx = txq->tail;
2004 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2006 index_adv(&end_idx, num_wrbs - 1, txq->len);
2007 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2008 atomic_sub(num_wrbs, &txq->used);
2013 static void be_evt_queues_destroy(struct be_adapter *adapter)
2015 struct be_eq_obj *eqo;
2018 for_all_evt_queues(adapter, eqo, i) {
2019 if (eqo->q.created) {
2021 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2022 napi_hash_del(&eqo->napi);
2023 netif_napi_del(&eqo->napi);
2025 be_queue_free(adapter, &eqo->q);
2029 static int be_evt_queues_create(struct be_adapter *adapter)
2031 struct be_queue_info *eq;
2032 struct be_eq_obj *eqo;
2033 struct be_aic_obj *aic;
2036 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2037 adapter->cfg_num_qs);
2039 for_all_evt_queues(adapter, eqo, i) {
2040 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2042 napi_hash_add(&eqo->napi);
2043 aic = &adapter->aic_obj[i];
2044 eqo->adapter = adapter;
2045 eqo->tx_budget = BE_TX_BUDGET;
2047 aic->max_eqd = BE_MAX_EQD;
2051 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2052 sizeof(struct be_eq_entry));
2056 rc = be_cmd_eq_create(adapter, eqo);
2063 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2065 struct be_queue_info *q;
2067 q = &adapter->mcc_obj.q;
2069 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2070 be_queue_free(adapter, q);
2072 q = &adapter->mcc_obj.cq;
2074 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2075 be_queue_free(adapter, q);
2078 /* Must be called only after TX qs are created as MCC shares TX EQ */
2079 static int be_mcc_queues_create(struct be_adapter *adapter)
2081 struct be_queue_info *q, *cq;
2083 cq = &adapter->mcc_obj.cq;
2084 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2085 sizeof(struct be_mcc_compl)))
2088 /* Use the default EQ for MCC completions */
2089 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2092 q = &adapter->mcc_obj.q;
2093 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2094 goto mcc_cq_destroy;
2096 if (be_cmd_mccq_create(adapter, q, cq))
2102 be_queue_free(adapter, q);
2104 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2106 be_queue_free(adapter, cq);
2111 static void be_tx_queues_destroy(struct be_adapter *adapter)
2113 struct be_queue_info *q;
2114 struct be_tx_obj *txo;
2117 for_all_tx_queues(adapter, txo, i) {
2120 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2121 be_queue_free(adapter, q);
2125 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2126 be_queue_free(adapter, q);
2130 static int be_tx_qs_create(struct be_adapter *adapter)
2132 struct be_queue_info *cq, *eq;
2133 struct be_tx_obj *txo;
2136 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2138 for_all_tx_queues(adapter, txo, i) {
2140 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2141 sizeof(struct be_eth_tx_compl));
2145 u64_stats_init(&txo->stats.sync);
2146 u64_stats_init(&txo->stats.sync_compl);
2148 /* If num_evt_qs is less than num_tx_qs, then more than
2149 * one txq share an eq
2151 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2152 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2156 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2157 sizeof(struct be_eth_wrb));
2161 status = be_cmd_txq_create(adapter, txo);
2166 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2167 adapter->num_tx_qs);
2171 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2173 struct be_queue_info *q;
2174 struct be_rx_obj *rxo;
2177 for_all_rx_queues(adapter, rxo, i) {
2180 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2181 be_queue_free(adapter, q);
2185 static int be_rx_cqs_create(struct be_adapter *adapter)
2187 struct be_queue_info *eq, *cq;
2188 struct be_rx_obj *rxo;
2191 /* We can create as many RSS rings as there are EQs. */
2192 adapter->num_rx_qs = adapter->num_evt_qs;
2194 /* We'll use RSS only if atleast 2 RSS rings are supported.
2195 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2197 if (adapter->num_rx_qs > 1)
2198 adapter->num_rx_qs++;
2200 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2201 for_all_rx_queues(adapter, rxo, i) {
2202 rxo->adapter = adapter;
2204 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2205 sizeof(struct be_eth_rx_compl));
2209 u64_stats_init(&rxo->stats.sync);
2210 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2211 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2216 dev_info(&adapter->pdev->dev,
2217 "created %d RSS queue(s) and 1 default RX queue\n",
2218 adapter->num_rx_qs - 1);
2222 static irqreturn_t be_intx(int irq, void *dev)
2224 struct be_eq_obj *eqo = dev;
2225 struct be_adapter *adapter = eqo->adapter;
2228 /* IRQ is not expected when NAPI is scheduled as the EQ
2229 * will not be armed.
2230 * But, this can happen on Lancer INTx where it takes
2231 * a while to de-assert INTx or in BE2 where occasionaly
2232 * an interrupt may be raised even when EQ is unarmed.
2233 * If NAPI is already scheduled, then counting & notifying
2234 * events will orphan them.
2236 if (napi_schedule_prep(&eqo->napi)) {
2237 num_evts = events_get(eqo);
2238 __napi_schedule(&eqo->napi);
2240 eqo->spurious_intr = 0;
2242 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2244 /* Return IRQ_HANDLED only for the the first spurious intr
2245 * after a valid intr to stop the kernel from branding
2246 * this irq as a bad one!
2248 if (num_evts || eqo->spurious_intr++ == 0)
2254 static irqreturn_t be_msix(int irq, void *dev)
2256 struct be_eq_obj *eqo = dev;
2258 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2259 napi_schedule(&eqo->napi);
2263 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2265 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2268 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2269 int budget, int polling)
2271 struct be_adapter *adapter = rxo->adapter;
2272 struct be_queue_info *rx_cq = &rxo->cq;
2273 struct be_rx_compl_info *rxcp;
2276 for (work_done = 0; work_done < budget; work_done++) {
2277 rxcp = be_rx_compl_get(rxo);
2281 /* Is it a flush compl that has no data */
2282 if (unlikely(rxcp->num_rcvd == 0))
2285 /* Discard compl with partial DMA Lancer B0 */
2286 if (unlikely(!rxcp->pkt_size)) {
2287 be_rx_compl_discard(rxo, rxcp);
2291 /* On BE drop pkts that arrive due to imperfect filtering in
2292 * promiscuous mode on some skews
2294 if (unlikely(rxcp->port != adapter->port_num &&
2295 !lancer_chip(adapter))) {
2296 be_rx_compl_discard(rxo, rxcp);
2300 /* Don't do gro when we're busy_polling */
2301 if (do_gro(rxcp) && polling != BUSY_POLLING)
2302 be_rx_compl_process_gro(rxo, napi, rxcp);
2304 be_rx_compl_process(rxo, napi, rxcp);
2307 be_rx_stats_update(rxo, rxcp);
2311 be_cq_notify(adapter, rx_cq->id, true, work_done);
2313 /* When an rx-obj gets into post_starved state, just
2314 * let be_worker do the posting.
2316 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2317 !rxo->rx_post_starved)
2318 be_post_rx_frags(rxo, GFP_ATOMIC);
2324 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2325 int budget, int idx)
2327 struct be_eth_tx_compl *txcp;
2328 int num_wrbs = 0, work_done;
2330 for (work_done = 0; work_done < budget; work_done++) {
2331 txcp = be_tx_compl_get(&txo->cq);
2334 num_wrbs += be_tx_compl_process(adapter, txo,
2335 AMAP_GET_BITS(struct amap_eth_tx_compl,
2340 be_cq_notify(adapter, txo->cq.id, true, work_done);
2341 atomic_sub(num_wrbs, &txo->q.used);
2343 /* As Tx wrbs have been freed up, wake up netdev queue
2344 * if it was stopped due to lack of tx wrbs. */
2345 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2346 atomic_read(&txo->q.used) < txo->q.len / 2) {
2347 netif_wake_subqueue(adapter->netdev, idx);
2350 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2351 tx_stats(txo)->tx_compl += work_done;
2352 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2354 return (work_done < budget); /* Done */
2357 int be_poll(struct napi_struct *napi, int budget)
2359 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2360 struct be_adapter *adapter = eqo->adapter;
2361 int max_work = 0, work, i, num_evts;
2362 struct be_rx_obj *rxo;
2365 num_evts = events_get(eqo);
2367 /* Process all TXQs serviced by this EQ */
2368 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2369 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2375 if (be_lock_napi(eqo)) {
2376 /* This loop will iterate twice for EQ0 in which
2377 * completions of the last RXQ (default one) are also processed
2378 * For other EQs the loop iterates only once
2380 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2381 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2382 max_work = max(work, max_work);
2384 be_unlock_napi(eqo);
2389 if (is_mcc_eqo(eqo))
2390 be_process_mcc(adapter);
2392 if (max_work < budget) {
2393 napi_complete(napi);
2394 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2396 /* As we'll continue in polling mode, count and clear events */
2397 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2402 #ifdef CONFIG_NET_RX_BUSY_POLL
2403 static int be_busy_poll(struct napi_struct *napi)
2405 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2406 struct be_adapter *adapter = eqo->adapter;
2407 struct be_rx_obj *rxo;
2410 if (!be_lock_busy_poll(eqo))
2411 return LL_FLUSH_BUSY;
2413 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2414 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2419 be_unlock_busy_poll(eqo);
2424 void be_detect_error(struct be_adapter *adapter)
2426 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2427 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2430 if (be_hw_error(adapter))
2433 if (lancer_chip(adapter)) {
2434 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2435 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2436 sliport_err1 = ioread32(adapter->db +
2437 SLIPORT_ERROR1_OFFSET);
2438 sliport_err2 = ioread32(adapter->db +
2439 SLIPORT_ERROR2_OFFSET);
2442 pci_read_config_dword(adapter->pdev,
2443 PCICFG_UE_STATUS_LOW, &ue_lo);
2444 pci_read_config_dword(adapter->pdev,
2445 PCICFG_UE_STATUS_HIGH, &ue_hi);
2446 pci_read_config_dword(adapter->pdev,
2447 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2448 pci_read_config_dword(adapter->pdev,
2449 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2451 ue_lo = (ue_lo & ~ue_lo_mask);
2452 ue_hi = (ue_hi & ~ue_hi_mask);
2455 /* On certain platforms BE hardware can indicate spurious UEs.
2456 * Allow the h/w to stop working completely in case of a real UE.
2457 * Hence not setting the hw_error for UE detection.
2459 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2460 adapter->hw_error = true;
2461 /* Do not log error messages if its a FW reset */
2462 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
2463 sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
2464 dev_info(&adapter->pdev->dev,
2465 "Firmware update in progress\n");
2468 dev_err(&adapter->pdev->dev,
2469 "Error detected in the card\n");
2473 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2474 dev_err(&adapter->pdev->dev,
2475 "ERR: sliport status 0x%x\n", sliport_status);
2476 dev_err(&adapter->pdev->dev,
2477 "ERR: sliport error1 0x%x\n", sliport_err1);
2478 dev_err(&adapter->pdev->dev,
2479 "ERR: sliport error2 0x%x\n", sliport_err2);
2483 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2485 dev_err(&adapter->pdev->dev,
2486 "UE: %s bit set\n", ue_status_low_desc[i]);
2491 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2493 dev_err(&adapter->pdev->dev,
2494 "UE: %s bit set\n", ue_status_hi_desc[i]);
2500 static void be_msix_disable(struct be_adapter *adapter)
2502 if (msix_enabled(adapter)) {
2503 pci_disable_msix(adapter->pdev);
2504 adapter->num_msix_vec = 0;
2505 adapter->num_msix_roce_vec = 0;
2509 static int be_msix_enable(struct be_adapter *adapter)
2511 int i, status, num_vec;
2512 struct device *dev = &adapter->pdev->dev;
2514 /* If RoCE is supported, program the max number of NIC vectors that
2515 * may be configured via set-channels, along with vectors needed for
2516 * RoCe. Else, just program the number we'll use initially.
2518 if (be_roce_supported(adapter))
2519 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2520 2 * num_online_cpus());
2522 num_vec = adapter->cfg_num_qs;
2524 for (i = 0; i < num_vec; i++)
2525 adapter->msix_entries[i].entry = i;
2527 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2530 } else if (status >= MIN_MSIX_VECTORS) {
2532 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2538 dev_warn(dev, "MSIx enable failed\n");
2540 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2541 if (!be_physfn(adapter))
2545 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2546 adapter->num_msix_roce_vec = num_vec / 2;
2547 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2548 adapter->num_msix_roce_vec);
2551 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2553 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2554 adapter->num_msix_vec);
2558 static inline int be_msix_vec_get(struct be_adapter *adapter,
2559 struct be_eq_obj *eqo)
2561 return adapter->msix_entries[eqo->msix_idx].vector;
2564 static int be_msix_register(struct be_adapter *adapter)
2566 struct net_device *netdev = adapter->netdev;
2567 struct be_eq_obj *eqo;
2570 for_all_evt_queues(adapter, eqo, i) {
2571 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2572 vec = be_msix_vec_get(adapter, eqo);
2573 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2580 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2581 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2582 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2584 be_msix_disable(adapter);
2588 static int be_irq_register(struct be_adapter *adapter)
2590 struct net_device *netdev = adapter->netdev;
2593 if (msix_enabled(adapter)) {
2594 status = be_msix_register(adapter);
2597 /* INTx is not supported for VF */
2598 if (!be_physfn(adapter))
2602 /* INTx: only the first EQ is used */
2603 netdev->irq = adapter->pdev->irq;
2604 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2605 &adapter->eq_obj[0]);
2607 dev_err(&adapter->pdev->dev,
2608 "INTx request IRQ failed - err %d\n", status);
2612 adapter->isr_registered = true;
2616 static void be_irq_unregister(struct be_adapter *adapter)
2618 struct net_device *netdev = adapter->netdev;
2619 struct be_eq_obj *eqo;
2622 if (!adapter->isr_registered)
2626 if (!msix_enabled(adapter)) {
2627 free_irq(netdev->irq, &adapter->eq_obj[0]);
2632 for_all_evt_queues(adapter, eqo, i)
2633 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2636 adapter->isr_registered = false;
2639 static void be_rx_qs_destroy(struct be_adapter *adapter)
2641 struct be_queue_info *q;
2642 struct be_rx_obj *rxo;
2645 for_all_rx_queues(adapter, rxo, i) {
2648 be_cmd_rxq_destroy(adapter, q);
2649 be_rx_cq_clean(rxo);
2651 be_queue_free(adapter, q);
2655 static int be_close(struct net_device *netdev)
2657 struct be_adapter *adapter = netdev_priv(netdev);
2658 struct be_eq_obj *eqo;
2661 be_roce_dev_close(adapter);
2663 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2664 for_all_evt_queues(adapter, eqo, i) {
2665 napi_disable(&eqo->napi);
2666 be_disable_busy_poll(eqo);
2668 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2671 be_async_mcc_disable(adapter);
2673 /* Wait for all pending tx completions to arrive so that
2674 * all tx skbs are freed.
2676 netif_tx_disable(netdev);
2677 be_tx_compl_clean(adapter);
2679 be_rx_qs_destroy(adapter);
2681 for (i = 1; i < (adapter->uc_macs + 1); i++)
2682 be_cmd_pmac_del(adapter, adapter->if_handle,
2683 adapter->pmac_id[i], 0);
2684 adapter->uc_macs = 0;
2686 for_all_evt_queues(adapter, eqo, i) {
2687 if (msix_enabled(adapter))
2688 synchronize_irq(be_msix_vec_get(adapter, eqo));
2690 synchronize_irq(netdev->irq);
2694 be_irq_unregister(adapter);
2699 static int be_rx_qs_create(struct be_adapter *adapter)
2701 struct be_rx_obj *rxo;
2705 for_all_rx_queues(adapter, rxo, i) {
2706 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2707 sizeof(struct be_eth_rx_d));
2712 /* The FW would like the default RXQ to be created first */
2713 rxo = default_rxo(adapter);
2714 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2715 adapter->if_handle, false, &rxo->rss_id);
2719 for_all_rss_queues(adapter, rxo, i) {
2720 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2721 rx_frag_size, adapter->if_handle,
2722 true, &rxo->rss_id);
2727 if (be_multi_rxq(adapter)) {
2728 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2729 for_all_rss_queues(adapter, rxo, i) {
2732 rsstable[j + i] = rxo->rss_id;
2735 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2736 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2738 if (!BEx_chip(adapter))
2739 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2740 RSS_ENABLE_UDP_IPV6;
2742 /* Disable RSS, if only default RX Q is created */
2743 adapter->rss_flags = RSS_ENABLE_NONE;
2746 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2749 adapter->rss_flags = RSS_ENABLE_NONE;
2753 /* First time posting */
2754 for_all_rx_queues(adapter, rxo, i)
2755 be_post_rx_frags(rxo, GFP_KERNEL);
2759 static int be_open(struct net_device *netdev)
2761 struct be_adapter *adapter = netdev_priv(netdev);
2762 struct be_eq_obj *eqo;
2763 struct be_rx_obj *rxo;
2764 struct be_tx_obj *txo;
2768 status = be_rx_qs_create(adapter);
2772 status = be_irq_register(adapter);
2776 for_all_rx_queues(adapter, rxo, i)
2777 be_cq_notify(adapter, rxo->cq.id, true, 0);
2779 for_all_tx_queues(adapter, txo, i)
2780 be_cq_notify(adapter, txo->cq.id, true, 0);
2782 be_async_mcc_enable(adapter);
2784 for_all_evt_queues(adapter, eqo, i) {
2785 napi_enable(&eqo->napi);
2786 be_enable_busy_poll(eqo);
2787 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2789 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2791 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2793 be_link_status_update(adapter, link_status);
2795 netif_tx_start_all_queues(netdev);
2796 be_roce_dev_open(adapter);
2799 be_close(adapter->netdev);
2803 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2805 struct be_dma_mem cmd;
2809 memset(mac, 0, ETH_ALEN);
2811 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2812 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2818 status = pci_write_config_dword(adapter->pdev,
2819 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2821 dev_err(&adapter->pdev->dev,
2822 "Could not enable Wake-on-lan\n");
2823 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2827 status = be_cmd_enable_magic_wol(adapter,
2828 adapter->netdev->dev_addr, &cmd);
2829 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2830 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2832 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2833 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2834 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2837 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2842 * Generate a seed MAC address from the PF MAC Address using jhash.
2843 * MAC Address for VFs are assigned incrementally starting from the seed.
2844 * These addresses are programmed in the ASIC by the PF and the VF driver
2845 * queries for the MAC address during its probe.
2847 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2852 struct be_vf_cfg *vf_cfg;
2854 be_vf_eth_addr_generate(adapter, mac);
2856 for_all_vfs(adapter, vf_cfg, vf) {
2857 if (BEx_chip(adapter))
2858 status = be_cmd_pmac_add(adapter, mac,
2860 &vf_cfg->pmac_id, vf + 1);
2862 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2866 dev_err(&adapter->pdev->dev,
2867 "Mac address assignment failed for VF %d\n", vf);
2869 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2876 static int be_vfs_mac_query(struct be_adapter *adapter)
2880 struct be_vf_cfg *vf_cfg;
2882 for_all_vfs(adapter, vf_cfg, vf) {
2883 status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
2884 mac, vf_cfg->if_handle,
2888 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2893 static void be_vf_clear(struct be_adapter *adapter)
2895 struct be_vf_cfg *vf_cfg;
2898 if (pci_vfs_assigned(adapter->pdev)) {
2899 dev_warn(&adapter->pdev->dev,
2900 "VFs are assigned to VMs: not disabling VFs\n");
2904 pci_disable_sriov(adapter->pdev);
2906 for_all_vfs(adapter, vf_cfg, vf) {
2907 if (BEx_chip(adapter))
2908 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2909 vf_cfg->pmac_id, vf + 1);
2911 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2914 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2917 kfree(adapter->vf_cfg);
2918 adapter->num_vfs = 0;
2921 static void be_clear_queues(struct be_adapter *adapter)
2923 be_mcc_queues_destroy(adapter);
2924 be_rx_cqs_destroy(adapter);
2925 be_tx_queues_destroy(adapter);
2926 be_evt_queues_destroy(adapter);
2929 static void be_cancel_worker(struct be_adapter *adapter)
2931 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2932 cancel_delayed_work_sync(&adapter->work);
2933 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2937 static void be_mac_clear(struct be_adapter *adapter)
2941 if (adapter->pmac_id) {
2942 for (i = 0; i < (adapter->uc_macs + 1); i++)
2943 be_cmd_pmac_del(adapter, adapter->if_handle,
2944 adapter->pmac_id[i], 0);
2945 adapter->uc_macs = 0;
2947 kfree(adapter->pmac_id);
2948 adapter->pmac_id = NULL;
2952 static int be_clear(struct be_adapter *adapter)
2954 be_cancel_worker(adapter);
2956 if (sriov_enabled(adapter))
2957 be_vf_clear(adapter);
2959 /* delete the primary mac along with the uc-mac list */
2960 be_mac_clear(adapter);
2962 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2964 be_clear_queues(adapter);
2966 be_msix_disable(adapter);
2970 static int be_vfs_if_create(struct be_adapter *adapter)
2972 struct be_resources res = {0};
2973 struct be_vf_cfg *vf_cfg;
2974 u32 cap_flags, en_flags, vf;
2977 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2978 BE_IF_FLAGS_MULTICAST;
2980 for_all_vfs(adapter, vf_cfg, vf) {
2981 if (!BE3_chip(adapter)) {
2982 status = be_cmd_get_profile_config(adapter, &res,
2985 cap_flags = res.if_cap_flags;
2988 /* If a FW profile exists, then cap_flags are updated */
2989 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2990 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2991 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2992 &vf_cfg->if_handle, vf + 1);
3000 static int be_vf_setup_init(struct be_adapter *adapter)
3002 struct be_vf_cfg *vf_cfg;
3005 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
3007 if (!adapter->vf_cfg)
3010 for_all_vfs(adapter, vf_cfg, vf) {
3011 vf_cfg->if_handle = -1;
3012 vf_cfg->pmac_id = -1;
3017 static int be_vf_setup(struct be_adapter *adapter)
3019 struct device *dev = &adapter->pdev->dev;
3020 struct be_vf_cfg *vf_cfg;
3021 int status, old_vfs, vf;
3025 old_vfs = pci_num_vf(adapter->pdev);
3027 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3028 if (old_vfs != num_vfs)
3029 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3030 adapter->num_vfs = old_vfs;
3032 if (num_vfs > be_max_vfs(adapter))
3033 dev_info(dev, "Device supports %d VFs and not %d\n",
3034 be_max_vfs(adapter), num_vfs);
3035 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3036 if (!adapter->num_vfs)
3040 status = be_vf_setup_init(adapter);
3045 for_all_vfs(adapter, vf_cfg, vf) {
3046 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3051 status = be_vfs_if_create(adapter);
3057 status = be_vfs_mac_query(adapter);
3061 status = be_vf_eth_addr_config(adapter);
3066 for_all_vfs(adapter, vf_cfg, vf) {
3067 /* Allow VFs to programs MAC/VLAN filters */
3068 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3069 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3070 status = be_cmd_set_fn_privileges(adapter,
3075 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3079 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
3080 * Allow full available bandwidth
3082 if (BE3_chip(adapter) && !old_vfs)
3083 be_cmd_set_qos(adapter, 1000, vf+1);
3085 status = be_cmd_link_status_query(adapter, &lnk_speed,
3088 vf_cfg->tx_rate = lnk_speed;
3091 be_cmd_enable_vf(adapter, vf + 1);
3095 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3097 dev_err(dev, "SRIOV enable failed\n");
3098 adapter->num_vfs = 0;
3104 dev_err(dev, "VF setup failed\n");
3105 be_vf_clear(adapter);
3109 /* On BE2/BE3 FW does not suggest the supported limits */
3110 static void BEx_get_resources(struct be_adapter *adapter,
3111 struct be_resources *res)
3113 struct pci_dev *pdev = adapter->pdev;
3114 bool use_sriov = false;
3117 max_vfs = pci_sriov_get_totalvfs(pdev);
3119 if (BE3_chip(adapter) && sriov_want(adapter)) {
3120 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3121 use_sriov = res->max_vfs;
3124 if (be_physfn(adapter))
3125 res->max_uc_mac = BE_UC_PMAC_COUNT;
3127 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3129 if (adapter->function_mode & FLEX10_MODE)
3130 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3131 else if (adapter->function_mode & UMC_ENABLED)
3132 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
3134 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3135 res->max_mcast_mac = BE_MAX_MC;
3137 /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
3138 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
3139 !be_physfn(adapter) || (adapter->port_num > 1))
3142 res->max_tx_qs = BE3_MAX_TX_QS;
3144 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3145 !use_sriov && be_physfn(adapter))
3146 res->max_rss_qs = (adapter->be3_native) ?
3147 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3148 res->max_rx_qs = res->max_rss_qs + 1;
3150 if (be_physfn(adapter))
3151 res->max_evt_qs = (max_vfs > 0) ?
3152 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
3154 res->max_evt_qs = 1;
3156 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3157 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3158 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3161 static void be_setup_init(struct be_adapter *adapter)
3163 adapter->vlan_prio_bmap = 0xff;
3164 adapter->phy.link_speed = -1;
3165 adapter->if_handle = -1;
3166 adapter->be3_native = false;
3167 adapter->promiscuous = false;
3168 if (be_physfn(adapter))
3169 adapter->cmd_privileges = MAX_PRIVILEGES;
3171 adapter->cmd_privileges = MIN_PRIVILEGES;
3174 static int be_get_resources(struct be_adapter *adapter)
3176 struct device *dev = &adapter->pdev->dev;
3177 struct be_resources res = {0};
3180 if (BEx_chip(adapter)) {
3181 BEx_get_resources(adapter, &res);
3185 /* For Lancer, SH etc read per-function resource limits from FW.
3186 * GET_FUNC_CONFIG returns per function guaranteed limits.
3187 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3189 if (!BEx_chip(adapter)) {
3190 status = be_cmd_get_func_config(adapter, &res);
3194 /* If RoCE may be enabled stash away half the EQs for RoCE */
3195 if (be_roce_supported(adapter))
3196 res.max_evt_qs /= 2;
3199 if (be_physfn(adapter)) {
3200 status = be_cmd_get_profile_config(adapter, &res, 0);
3203 adapter->res.max_vfs = res.max_vfs;
3206 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3207 be_max_txqs(adapter), be_max_rxqs(adapter),
3208 be_max_rss(adapter), be_max_eqs(adapter),
3209 be_max_vfs(adapter));
3210 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3211 be_max_uc(adapter), be_max_mc(adapter),
3212 be_max_vlans(adapter));
3218 /* Routine to query per function resource limits */
3219 static int be_get_config(struct be_adapter *adapter)
3224 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3225 &adapter->function_mode,
3226 &adapter->function_caps,
3227 &adapter->asic_rev);
3231 if (be_physfn(adapter)) {
3232 status = be_cmd_get_active_profile(adapter, &profile_id);
3234 dev_info(&adapter->pdev->dev,
3235 "Using profile 0x%x\n", profile_id);
3238 status = be_get_resources(adapter);
3242 /* primary mac needs 1 pmac entry */
3243 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3245 if (!adapter->pmac_id)
3248 /* Sanitize cfg_num_qs based on HW and platform limits */
3249 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3254 static int be_mac_setup(struct be_adapter *adapter)
3259 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3260 status = be_cmd_get_perm_mac(adapter, mac);
3264 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3265 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3267 /* Maybe the HW was reset; dev_addr must be re-programmed */
3268 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3271 /* For BE3-R VFs, the PF programs the initial MAC address */
3272 if (!(BEx_chip(adapter) && be_virtfn(adapter)))
3273 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3274 &adapter->pmac_id[0], 0);
3278 static void be_schedule_worker(struct be_adapter *adapter)
3280 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3281 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3284 static int be_setup_queues(struct be_adapter *adapter)
3286 struct net_device *netdev = adapter->netdev;
3289 status = be_evt_queues_create(adapter);
3293 status = be_tx_qs_create(adapter);
3297 status = be_rx_cqs_create(adapter);
3301 status = be_mcc_queues_create(adapter);
3305 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3309 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3315 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3319 int be_update_queues(struct be_adapter *adapter)
3321 struct net_device *netdev = adapter->netdev;
3324 if (netif_running(netdev))
3327 be_cancel_worker(adapter);
3329 /* If any vectors have been shared with RoCE we cannot re-program
3332 if (!adapter->num_msix_roce_vec)
3333 be_msix_disable(adapter);
3335 be_clear_queues(adapter);
3337 if (!msix_enabled(adapter)) {
3338 status = be_msix_enable(adapter);
3343 status = be_setup_queues(adapter);
3347 be_schedule_worker(adapter);
3349 if (netif_running(netdev))
3350 status = be_open(netdev);
3355 static int be_setup(struct be_adapter *adapter)
3357 struct device *dev = &adapter->pdev->dev;
3358 u32 tx_fc, rx_fc, en_flags;
3361 be_setup_init(adapter);
3363 if (!lancer_chip(adapter))
3364 be_cmd_req_native_mode(adapter);
3366 status = be_get_config(adapter);
3370 status = be_msix_enable(adapter);
3374 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3375 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3376 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3377 en_flags |= BE_IF_FLAGS_RSS;
3378 en_flags = en_flags & be_if_cap_flags(adapter);
3379 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3380 &adapter->if_handle, 0);
3384 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3386 status = be_setup_queues(adapter);
3391 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3393 status = be_mac_setup(adapter);
3397 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3399 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
3400 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
3402 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
3405 if (adapter->vlans_added)
3406 be_vid_config(adapter);
3408 be_set_rx_mode(adapter->netdev);
3410 be_cmd_get_acpi_wol_cap(adapter);
3412 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3414 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3415 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3418 if (sriov_want(adapter)) {
3419 if (be_max_vfs(adapter))
3420 be_vf_setup(adapter);
3422 dev_warn(dev, "device doesn't support SRIOV\n");
3425 status = be_cmd_get_phy_info(adapter);
3426 if (!status && be_pause_supported(adapter))
3427 adapter->phy.fc_autoneg = 1;
3429 be_schedule_worker(adapter);
3436 #ifdef CONFIG_NET_POLL_CONTROLLER
3437 static void be_netpoll(struct net_device *netdev)
3439 struct be_adapter *adapter = netdev_priv(netdev);
3440 struct be_eq_obj *eqo;
3443 for_all_evt_queues(adapter, eqo, i) {
3444 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3445 napi_schedule(&eqo->napi);
3452 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3453 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3455 static bool be_flash_redboot(struct be_adapter *adapter,
3456 const u8 *p, u32 img_start, int image_size,
3463 crc_offset = hdr_size + img_start + image_size - 4;
3467 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3470 dev_err(&adapter->pdev->dev,
3471 "could not get crc from flash, not flashing redboot\n");
3475 /*update redboot only if crc does not match*/
3476 if (!memcmp(flashed_crc, p, 4))
3482 static bool phy_flashing_required(struct be_adapter *adapter)
3484 return (adapter->phy.phy_type == TN_8022 &&
3485 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3488 static bool is_comp_in_ufi(struct be_adapter *adapter,
3489 struct flash_section_info *fsec, int type)
3491 int i = 0, img_type = 0;
3492 struct flash_section_info_g2 *fsec_g2 = NULL;
3494 if (BE2_chip(adapter))
3495 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3497 for (i = 0; i < MAX_FLASH_COMP; i++) {
3499 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3501 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3503 if (img_type == type)
3510 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3512 const struct firmware *fw)
3514 struct flash_section_info *fsec = NULL;
3515 const u8 *p = fw->data;
3518 while (p < (fw->data + fw->size)) {
3519 fsec = (struct flash_section_info *)p;
3520 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3527 static int be_flash(struct be_adapter *adapter, const u8 *img,
3528 struct be_dma_mem *flash_cmd, int optype, int img_size)
3530 u32 total_bytes = 0, flash_op, num_bytes = 0;
3532 struct be_cmd_write_flashrom *req = flash_cmd->va;
3534 total_bytes = img_size;
3535 while (total_bytes) {
3536 num_bytes = min_t(u32, 32*1024, total_bytes);
3538 total_bytes -= num_bytes;
3541 if (optype == OPTYPE_PHY_FW)
3542 flash_op = FLASHROM_OPER_PHY_FLASH;
3544 flash_op = FLASHROM_OPER_FLASH;
3546 if (optype == OPTYPE_PHY_FW)
3547 flash_op = FLASHROM_OPER_PHY_SAVE;
3549 flash_op = FLASHROM_OPER_SAVE;
3552 memcpy(req->data_buf, img, num_bytes);
3554 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3555 flash_op, num_bytes);
3557 if (status == ILLEGAL_IOCTL_REQ &&
3558 optype == OPTYPE_PHY_FW)
3560 dev_err(&adapter->pdev->dev,
3561 "cmd to write to flash rom failed.\n");
3568 /* For BE2, BE3 and BE3-R */
3569 static int be_flash_BEx(struct be_adapter *adapter,
3570 const struct firmware *fw,
3571 struct be_dma_mem *flash_cmd,
3575 int status = 0, i, filehdr_size = 0;
3576 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3577 const u8 *p = fw->data;
3578 const struct flash_comp *pflashcomp;
3579 int num_comp, redboot;
3580 struct flash_section_info *fsec = NULL;
3582 struct flash_comp gen3_flash_types[] = {
3583 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3584 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3585 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3586 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3587 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3588 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3589 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3590 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3591 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3592 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3593 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3594 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3595 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3596 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3597 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3598 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3599 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3600 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3601 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3602 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3605 struct flash_comp gen2_flash_types[] = {
3606 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3607 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3608 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3609 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3610 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3611 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3612 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3613 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3614 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3615 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3616 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3617 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3618 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3619 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3620 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3621 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3624 if (BE3_chip(adapter)) {
3625 pflashcomp = gen3_flash_types;
3626 filehdr_size = sizeof(struct flash_file_hdr_g3);
3627 num_comp = ARRAY_SIZE(gen3_flash_types);
3629 pflashcomp = gen2_flash_types;
3630 filehdr_size = sizeof(struct flash_file_hdr_g2);
3631 num_comp = ARRAY_SIZE(gen2_flash_types);
3634 /* Get flash section info*/
3635 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3637 dev_err(&adapter->pdev->dev,
3638 "Invalid Cookie. UFI corrupted ?\n");
3641 for (i = 0; i < num_comp; i++) {
3642 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3645 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3646 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3649 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3650 !phy_flashing_required(adapter))
3653 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3654 redboot = be_flash_redboot(adapter, fw->data,
3655 pflashcomp[i].offset, pflashcomp[i].size,
3656 filehdr_size + img_hdrs_size);
3662 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3663 if (p + pflashcomp[i].size > fw->data + fw->size)
3666 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3667 pflashcomp[i].size);
3669 dev_err(&adapter->pdev->dev,
3670 "Flashing section type %d failed.\n",
3671 pflashcomp[i].img_type);
3678 static int be_flash_skyhawk(struct be_adapter *adapter,
3679 const struct firmware *fw,
3680 struct be_dma_mem *flash_cmd, int num_of_images)
3682 int status = 0, i, filehdr_size = 0;
3683 int img_offset, img_size, img_optype, redboot;
3684 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3685 const u8 *p = fw->data;
3686 struct flash_section_info *fsec = NULL;
3688 filehdr_size = sizeof(struct flash_file_hdr_g3);
3689 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3691 dev_err(&adapter->pdev->dev,
3692 "Invalid Cookie. UFI corrupted ?\n");
3696 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3697 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3698 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3700 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3701 case IMAGE_FIRMWARE_iSCSI:
3702 img_optype = OPTYPE_ISCSI_ACTIVE;
3704 case IMAGE_BOOT_CODE:
3705 img_optype = OPTYPE_REDBOOT;
3707 case IMAGE_OPTION_ROM_ISCSI:
3708 img_optype = OPTYPE_BIOS;
3710 case IMAGE_OPTION_ROM_PXE:
3711 img_optype = OPTYPE_PXE_BIOS;
3713 case IMAGE_OPTION_ROM_FCoE:
3714 img_optype = OPTYPE_FCOE_BIOS;
3716 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3717 img_optype = OPTYPE_ISCSI_BACKUP;
3720 img_optype = OPTYPE_NCSI_FW;
3726 if (img_optype == OPTYPE_REDBOOT) {
3727 redboot = be_flash_redboot(adapter, fw->data,
3728 img_offset, img_size,
3729 filehdr_size + img_hdrs_size);
3735 p += filehdr_size + img_offset + img_hdrs_size;
3736 if (p + img_size > fw->data + fw->size)
3739 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3741 dev_err(&adapter->pdev->dev,
3742 "Flashing section type %d failed.\n",
3743 fsec->fsec_entry[i].type);
3750 static int lancer_fw_download(struct be_adapter *adapter,
3751 const struct firmware *fw)
3753 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3754 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3755 struct be_dma_mem flash_cmd;
3756 const u8 *data_ptr = NULL;
3757 u8 *dest_image_ptr = NULL;
3758 size_t image_size = 0;
3760 u32 data_written = 0;
3766 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3767 dev_err(&adapter->pdev->dev,
3768 "FW Image not properly aligned. "
3769 "Length must be 4 byte aligned.\n");
3771 goto lancer_fw_exit;
3774 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3775 + LANCER_FW_DOWNLOAD_CHUNK;
3776 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3777 &flash_cmd.dma, GFP_KERNEL);
3778 if (!flash_cmd.va) {
3780 goto lancer_fw_exit;
3783 dest_image_ptr = flash_cmd.va +
3784 sizeof(struct lancer_cmd_req_write_object);
3785 image_size = fw->size;
3786 data_ptr = fw->data;
3788 while (image_size) {
3789 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3791 /* Copy the image chunk content. */
3792 memcpy(dest_image_ptr, data_ptr, chunk_size);
3794 status = lancer_cmd_write_object(adapter, &flash_cmd,
3796 LANCER_FW_DOWNLOAD_LOCATION,
3797 &data_written, &change_status,
3802 offset += data_written;
3803 data_ptr += data_written;
3804 image_size -= data_written;
3808 /* Commit the FW written */
3809 status = lancer_cmd_write_object(adapter, &flash_cmd,
3811 LANCER_FW_DOWNLOAD_LOCATION,
3812 &data_written, &change_status,
3816 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3819 dev_err(&adapter->pdev->dev,
3820 "Firmware load error. "
3821 "Status code: 0x%x Additional Status: 0x%x\n",
3822 status, add_status);
3823 goto lancer_fw_exit;
3826 if (change_status == LANCER_FW_RESET_NEEDED) {
3827 dev_info(&adapter->pdev->dev,
3828 "Resetting adapter to activate new FW\n");
3829 status = lancer_physdev_ctrl(adapter,
3830 PHYSDEV_CONTROL_FW_RESET_MASK);
3832 dev_err(&adapter->pdev->dev,
3833 "Adapter busy for FW reset.\n"
3834 "New FW will not be active.\n");
3835 goto lancer_fw_exit;
3837 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3838 dev_err(&adapter->pdev->dev,
3839 "System reboot required for new FW"
3843 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3850 #define UFI_TYPE3R 10
3852 static int be_get_ufi_type(struct be_adapter *adapter,
3853 struct flash_file_hdr_g3 *fhdr)
3856 goto be_get_ufi_exit;
3858 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3860 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3861 if (fhdr->asic_type_rev == 0x10)
3865 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3869 dev_err(&adapter->pdev->dev,
3870 "UFI and Interface are not compatible for flashing\n");
3874 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3876 struct flash_file_hdr_g3 *fhdr3;
3877 struct image_hdr *img_hdr_ptr = NULL;
3878 struct be_dma_mem flash_cmd;
3880 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3882 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3883 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3884 &flash_cmd.dma, GFP_KERNEL);
3885 if (!flash_cmd.va) {
3891 fhdr3 = (struct flash_file_hdr_g3 *)p;
3893 ufi_type = be_get_ufi_type(adapter, fhdr3);
3895 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3896 for (i = 0; i < num_imgs; i++) {
3897 img_hdr_ptr = (struct image_hdr *)(fw->data +
3898 (sizeof(struct flash_file_hdr_g3) +
3899 i * sizeof(struct image_hdr)));
3900 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3903 status = be_flash_skyhawk(adapter, fw,
3904 &flash_cmd, num_imgs);
3907 status = be_flash_BEx(adapter, fw, &flash_cmd,
3911 /* Do not flash this ufi on BE3-R cards */
3912 if (adapter->asic_rev < 0x10)
3913 status = be_flash_BEx(adapter, fw,
3918 dev_err(&adapter->pdev->dev,
3919 "Can't load BE3 UFI on BE3R\n");
3925 if (ufi_type == UFI_TYPE2)
3926 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3927 else if (ufi_type == -1)
3930 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3933 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3937 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3943 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3945 const struct firmware *fw;
3948 if (!netif_running(adapter->netdev)) {
3949 dev_err(&adapter->pdev->dev,
3950 "Firmware load not allowed (interface is down)\n");
3954 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3958 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3960 if (lancer_chip(adapter))
3961 status = lancer_fw_download(adapter, fw);
3963 status = be_fw_download(adapter, fw);
3966 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3967 adapter->fw_on_flash);
3970 release_firmware(fw);
3974 static int be_ndo_bridge_setlink(struct net_device *dev,
3975 struct nlmsghdr *nlh)
3977 struct be_adapter *adapter = netdev_priv(dev);
3978 struct nlattr *attr, *br_spec;
3983 if (!sriov_enabled(adapter))
3986 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
3988 nla_for_each_nested(attr, br_spec, rem) {
3989 if (nla_type(attr) != IFLA_BRIDGE_MODE)
3992 mode = nla_get_u16(attr);
3993 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
3996 status = be_cmd_set_hsw_config(adapter, 0, 0,
3998 mode == BRIDGE_MODE_VEPA ?
3999 PORT_FWD_TYPE_VEPA :
4004 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
4005 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4010 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
4011 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4016 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4017 struct net_device *dev,
4020 struct be_adapter *adapter = netdev_priv(dev);
4024 if (!sriov_enabled(adapter))
4027 /* BE and Lancer chips support VEB mode only */
4028 if (BEx_chip(adapter) || lancer_chip(adapter)) {
4029 hsw_mode = PORT_FWD_TYPE_VEB;
4031 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4032 adapter->if_handle, &hsw_mode);
4037 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4038 hsw_mode == PORT_FWD_TYPE_VEPA ?
4039 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4042 static const struct net_device_ops be_netdev_ops = {
4043 .ndo_open = be_open,
4044 .ndo_stop = be_close,
4045 .ndo_start_xmit = be_xmit,
4046 .ndo_set_rx_mode = be_set_rx_mode,
4047 .ndo_set_mac_address = be_mac_addr_set,
4048 .ndo_change_mtu = be_change_mtu,
4049 .ndo_get_stats64 = be_get_stats64,
4050 .ndo_validate_addr = eth_validate_addr,
4051 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
4052 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
4053 .ndo_set_vf_mac = be_set_vf_mac,
4054 .ndo_set_vf_vlan = be_set_vf_vlan,
4055 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
4056 .ndo_get_vf_config = be_get_vf_config,
4057 #ifdef CONFIG_NET_POLL_CONTROLLER
4058 .ndo_poll_controller = be_netpoll,
4060 .ndo_bridge_setlink = be_ndo_bridge_setlink,
4061 .ndo_bridge_getlink = be_ndo_bridge_getlink,
4062 #ifdef CONFIG_NET_RX_BUSY_POLL
4063 .ndo_busy_poll = be_busy_poll
4067 static void be_netdev_init(struct net_device *netdev)
4069 struct be_adapter *adapter = netdev_priv(netdev);
4071 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4072 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4073 NETIF_F_HW_VLAN_CTAG_TX;
4074 if (be_multi_rxq(adapter))
4075 netdev->hw_features |= NETIF_F_RXHASH;
4077 netdev->features |= netdev->hw_features |
4078 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4080 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4081 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4083 netdev->priv_flags |= IFF_UNICAST_FLT;
4085 netdev->flags |= IFF_MULTICAST;
4087 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4089 netdev->netdev_ops = &be_netdev_ops;
4091 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
4094 static void be_unmap_pci_bars(struct be_adapter *adapter)
4097 pci_iounmap(adapter->pdev, adapter->csr);
4099 pci_iounmap(adapter->pdev, adapter->db);
4102 static int db_bar(struct be_adapter *adapter)
4104 if (lancer_chip(adapter) || !be_physfn(adapter))
4110 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4112 if (skyhawk_chip(adapter)) {
4113 adapter->roce_db.size = 4096;
4114 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4116 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4122 static int be_map_pci_bars(struct be_adapter *adapter)
4126 if (BEx_chip(adapter) && be_physfn(adapter)) {
4127 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4128 if (adapter->csr == NULL)
4132 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4137 be_roce_map_pci_bars(adapter);
4141 be_unmap_pci_bars(adapter);
4145 static void be_ctrl_cleanup(struct be_adapter *adapter)
4147 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4149 be_unmap_pci_bars(adapter);
4152 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4155 mem = &adapter->rx_filter;
4157 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4161 static int be_ctrl_init(struct be_adapter *adapter)
4163 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4164 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4165 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4169 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4170 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4171 SLI_INTF_FAMILY_SHIFT;
4172 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4174 status = be_map_pci_bars(adapter);
4178 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4179 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4180 mbox_mem_alloc->size,
4181 &mbox_mem_alloc->dma,
4183 if (!mbox_mem_alloc->va) {
4185 goto unmap_pci_bars;
4187 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4188 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4189 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4190 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4192 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4193 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4194 rx_filter->size, &rx_filter->dma,
4196 if (rx_filter->va == NULL) {
4201 mutex_init(&adapter->mbox_lock);
4202 spin_lock_init(&adapter->mcc_lock);
4203 spin_lock_init(&adapter->mcc_cq_lock);
4205 init_completion(&adapter->et_cmd_compl);
4206 pci_save_state(adapter->pdev);
4210 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4211 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4214 be_unmap_pci_bars(adapter);
4220 static void be_stats_cleanup(struct be_adapter *adapter)
4222 struct be_dma_mem *cmd = &adapter->stats_cmd;
4225 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4229 static int be_stats_init(struct be_adapter *adapter)
4231 struct be_dma_mem *cmd = &adapter->stats_cmd;
4233 if (lancer_chip(adapter))
4234 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4235 else if (BE2_chip(adapter))
4236 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4237 else if (BE3_chip(adapter))
4238 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4240 /* ALL non-BE ASICs */
4241 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4243 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4245 if (cmd->va == NULL)
4250 static void be_remove(struct pci_dev *pdev)
4252 struct be_adapter *adapter = pci_get_drvdata(pdev);
4257 be_roce_dev_remove(adapter);
4258 be_intr_set(adapter, false);
4260 cancel_delayed_work_sync(&adapter->func_recovery_work);
4262 unregister_netdev(adapter->netdev);
4266 /* tell fw we're done with firing cmds */
4267 be_cmd_fw_clean(adapter);
4269 be_stats_cleanup(adapter);
4271 be_ctrl_cleanup(adapter);
4273 pci_disable_pcie_error_reporting(pdev);
4275 pci_release_regions(pdev);
4276 pci_disable_device(pdev);
4278 free_netdev(adapter->netdev);
4281 static int be_get_initial_config(struct be_adapter *adapter)
4285 status = be_cmd_get_cntl_attributes(adapter);
4289 /* Must be a power of 2 or else MODULO will BUG_ON */
4290 adapter->be_get_temp_freq = 64;
4292 if (BEx_chip(adapter)) {
4293 level = be_cmd_get_fw_log_level(adapter);
4294 adapter->msg_enable =
4295 level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4298 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4302 static int lancer_recover_func(struct be_adapter *adapter)
4304 struct device *dev = &adapter->pdev->dev;
4307 status = lancer_test_and_set_rdy_state(adapter);
4311 if (netif_running(adapter->netdev))
4312 be_close(adapter->netdev);
4316 be_clear_all_error(adapter);
4318 status = be_setup(adapter);
4322 if (netif_running(adapter->netdev)) {
4323 status = be_open(adapter->netdev);
4328 dev_err(dev, "Adapter recovery successful\n");
4331 if (status == -EAGAIN)
4332 dev_err(dev, "Waiting for resource provisioning\n");
4334 dev_err(dev, "Adapter recovery failed\n");
4339 static void be_func_recovery_task(struct work_struct *work)
4341 struct be_adapter *adapter =
4342 container_of(work, struct be_adapter, func_recovery_work.work);
4345 be_detect_error(adapter);
4347 if (adapter->hw_error && lancer_chip(adapter)) {
4350 netif_device_detach(adapter->netdev);
4353 status = lancer_recover_func(adapter);
4355 netif_device_attach(adapter->netdev);
4358 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4359 * no need to attempt further recovery.
4361 if (!status || status == -EAGAIN)
4362 schedule_delayed_work(&adapter->func_recovery_work,
4363 msecs_to_jiffies(1000));
4366 static void be_worker(struct work_struct *work)
4368 struct be_adapter *adapter =
4369 container_of(work, struct be_adapter, work.work);
4370 struct be_rx_obj *rxo;
4373 /* when interrupts are not yet enabled, just reap any pending
4374 * mcc completions */
4375 if (!netif_running(adapter->netdev)) {
4377 be_process_mcc(adapter);
4382 if (!adapter->stats_cmd_sent) {
4383 if (lancer_chip(adapter))
4384 lancer_cmd_get_pport_stats(adapter,
4385 &adapter->stats_cmd);
4387 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4390 if (be_physfn(adapter) &&
4391 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4392 be_cmd_get_die_temperature(adapter);
4394 for_all_rx_queues(adapter, rxo, i) {
4395 /* Replenish RX-queues starved due to memory
4396 * allocation failures.
4398 if (rxo->rx_post_starved)
4399 be_post_rx_frags(rxo, GFP_KERNEL);
4402 be_eqd_update(adapter);
4405 adapter->work_counter++;
4406 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4409 /* If any VFs are already enabled don't FLR the PF */
4410 static bool be_reset_required(struct be_adapter *adapter)
4412 return pci_num_vf(adapter->pdev) ? false : true;
4415 static char *mc_name(struct be_adapter *adapter)
4417 if (adapter->function_mode & FLEX10_MODE)
4419 else if (adapter->function_mode & VNIC_MODE)
4421 else if (adapter->function_mode & UMC_ENABLED)
4427 static inline char *func_name(struct be_adapter *adapter)
4429 return be_physfn(adapter) ? "PF" : "VF";
4432 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4435 struct be_adapter *adapter;
4436 struct net_device *netdev;
4439 status = pci_enable_device(pdev);
4443 status = pci_request_regions(pdev, DRV_NAME);
4446 pci_set_master(pdev);
4448 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4449 if (netdev == NULL) {
4453 adapter = netdev_priv(netdev);
4454 adapter->pdev = pdev;
4455 pci_set_drvdata(pdev, adapter);
4456 adapter->netdev = netdev;
4457 SET_NETDEV_DEV(netdev, &pdev->dev);
4459 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
4461 netdev->features |= NETIF_F_HIGHDMA;
4463 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
4465 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4470 if (be_physfn(adapter)) {
4471 status = pci_enable_pcie_error_reporting(pdev);
4473 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4476 status = be_ctrl_init(adapter);
4480 /* sync up with fw's ready state */
4481 if (be_physfn(adapter)) {
4482 status = be_fw_wait_ready(adapter);
4487 if (be_reset_required(adapter)) {
4488 status = be_cmd_reset_function(adapter);
4492 /* Wait for interrupts to quiesce after an FLR */
4496 /* Allow interrupts for other ULPs running on NIC function */
4497 be_intr_set(adapter, true);
4499 /* tell fw we're ready to fire cmds */
4500 status = be_cmd_fw_init(adapter);
4504 status = be_stats_init(adapter);
4508 status = be_get_initial_config(adapter);
4512 INIT_DELAYED_WORK(&adapter->work, be_worker);
4513 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4514 adapter->rx_fc = adapter->tx_fc = true;
4516 status = be_setup(adapter);
4520 be_netdev_init(netdev);
4521 status = register_netdev(netdev);
4525 be_roce_dev_add(adapter);
4527 schedule_delayed_work(&adapter->func_recovery_work,
4528 msecs_to_jiffies(1000));
4530 be_cmd_query_port_name(adapter, &port_name);
4532 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4533 func_name(adapter), mc_name(adapter), port_name);
4540 be_stats_cleanup(adapter);
4542 be_ctrl_cleanup(adapter);
4544 free_netdev(netdev);
4546 pci_release_regions(pdev);
4548 pci_disable_device(pdev);
4550 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4554 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4556 struct be_adapter *adapter = pci_get_drvdata(pdev);
4557 struct net_device *netdev = adapter->netdev;
4559 if (adapter->wol_en)
4560 be_setup_wol(adapter, true);
4562 be_intr_set(adapter, false);
4563 cancel_delayed_work_sync(&adapter->func_recovery_work);
4565 netif_device_detach(netdev);
4566 if (netif_running(netdev)) {
4573 pci_save_state(pdev);
4574 pci_disable_device(pdev);
4575 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4579 static int be_resume(struct pci_dev *pdev)
4582 struct be_adapter *adapter = pci_get_drvdata(pdev);
4583 struct net_device *netdev = adapter->netdev;
4585 netif_device_detach(netdev);
4587 status = pci_enable_device(pdev);
4591 pci_set_power_state(pdev, PCI_D0);
4592 pci_restore_state(pdev);
4594 status = be_fw_wait_ready(adapter);
4598 be_intr_set(adapter, true);
4599 /* tell fw we're ready to fire cmds */
4600 status = be_cmd_fw_init(adapter);
4605 if (netif_running(netdev)) {
4611 schedule_delayed_work(&adapter->func_recovery_work,
4612 msecs_to_jiffies(1000));
4613 netif_device_attach(netdev);
4615 if (adapter->wol_en)
4616 be_setup_wol(adapter, false);
4622 * An FLR will stop BE from DMAing any data.
4624 static void be_shutdown(struct pci_dev *pdev)
4626 struct be_adapter *adapter = pci_get_drvdata(pdev);
4631 cancel_delayed_work_sync(&adapter->work);
4632 cancel_delayed_work_sync(&adapter->func_recovery_work);
4634 netif_device_detach(adapter->netdev);
4636 be_cmd_reset_function(adapter);
4638 pci_disable_device(pdev);
4641 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4642 pci_channel_state_t state)
4644 struct be_adapter *adapter = pci_get_drvdata(pdev);
4645 struct net_device *netdev = adapter->netdev;
4647 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4649 if (!adapter->eeh_error) {
4650 adapter->eeh_error = true;
4652 cancel_delayed_work_sync(&adapter->func_recovery_work);
4655 netif_device_detach(netdev);
4656 if (netif_running(netdev))
4663 if (state == pci_channel_io_perm_failure)
4664 return PCI_ERS_RESULT_DISCONNECT;
4666 pci_disable_device(pdev);
4668 /* The error could cause the FW to trigger a flash debug dump.
4669 * Resetting the card while flash dump is in progress
4670 * can cause it not to recover; wait for it to finish.
4671 * Wait only for first function as it is needed only once per
4674 if (pdev->devfn == 0)
4677 return PCI_ERS_RESULT_NEED_RESET;
4680 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4682 struct be_adapter *adapter = pci_get_drvdata(pdev);
4685 dev_info(&adapter->pdev->dev, "EEH reset\n");
4687 status = pci_enable_device(pdev);
4689 return PCI_ERS_RESULT_DISCONNECT;
4691 pci_set_master(pdev);
4692 pci_set_power_state(pdev, PCI_D0);
4693 pci_restore_state(pdev);
4695 /* Check if card is ok and fw is ready */
4696 dev_info(&adapter->pdev->dev,
4697 "Waiting for FW to be ready after EEH reset\n");
4698 status = be_fw_wait_ready(adapter);
4700 return PCI_ERS_RESULT_DISCONNECT;
4702 pci_cleanup_aer_uncorrect_error_status(pdev);
4703 be_clear_all_error(adapter);
4704 return PCI_ERS_RESULT_RECOVERED;
4707 static void be_eeh_resume(struct pci_dev *pdev)
4710 struct be_adapter *adapter = pci_get_drvdata(pdev);
4711 struct net_device *netdev = adapter->netdev;
4713 dev_info(&adapter->pdev->dev, "EEH resume\n");
4715 pci_save_state(pdev);
4717 status = be_cmd_reset_function(adapter);
4721 /* tell fw we're ready to fire cmds */
4722 status = be_cmd_fw_init(adapter);
4726 status = be_setup(adapter);
4730 if (netif_running(netdev)) {
4731 status = be_open(netdev);
4736 schedule_delayed_work(&adapter->func_recovery_work,
4737 msecs_to_jiffies(1000));
4738 netif_device_attach(netdev);
4741 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4744 static const struct pci_error_handlers be_eeh_handlers = {
4745 .error_detected = be_eeh_err_detected,
4746 .slot_reset = be_eeh_reset,
4747 .resume = be_eeh_resume,
4750 static struct pci_driver be_driver = {
4752 .id_table = be_dev_ids,
4754 .remove = be_remove,
4755 .suspend = be_suspend,
4756 .resume = be_resume,
4757 .shutdown = be_shutdown,
4758 .err_handler = &be_eeh_handlers
4761 static int __init be_init_module(void)
4763 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4764 rx_frag_size != 2048) {
4765 printk(KERN_WARNING DRV_NAME
4766 " : Module param rx_frag_size must be 2048/4096/8192."
4768 rx_frag_size = 2048;
4771 return pci_register_driver(&be_driver);
4773 module_init(be_init_module);
4775 static void __exit be_exit_module(void)
4777 pci_unregister_driver(&be_driver);
4779 module_exit(be_exit_module);