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);
993 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
995 struct be_adapter *adapter = netdev_priv(netdev);
996 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
997 struct be_queue_info *txq = &txo->q;
998 bool dummy_wrb, stopped = false;
999 u32 wrb_cnt = 0, copied = 0;
1000 bool skip_hw_vlan = false;
1001 u32 start = txq->head;
1003 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
1005 tx_stats(txo)->tx_drv_drops++;
1006 return NETDEV_TX_OK;
1009 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
1011 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
1014 int gso_segs = skb_shinfo(skb)->gso_segs;
1016 /* record the sent skb in the sent_skb table */
1017 BUG_ON(txo->sent_skb_list[start]);
1018 txo->sent_skb_list[start] = skb;
1020 /* Ensure txq has space for the next skb; Else stop the queue
1021 * *BEFORE* ringing the tx doorbell, so that we serialze the
1022 * tx compls of the current transmit which'll wake up the queue
1024 atomic_add(wrb_cnt, &txq->used);
1025 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
1027 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
1031 be_txq_notify(adapter, txo, wrb_cnt);
1033 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
1036 tx_stats(txo)->tx_drv_drops++;
1037 dev_kfree_skb_any(skb);
1039 return NETDEV_TX_OK;
1042 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1044 struct be_adapter *adapter = netdev_priv(netdev);
1045 if (new_mtu < BE_MIN_MTU ||
1046 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
1047 (ETH_HLEN + ETH_FCS_LEN))) {
1048 dev_info(&adapter->pdev->dev,
1049 "MTU must be between %d and %d bytes\n",
1051 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
1054 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
1055 netdev->mtu, new_mtu);
1056 netdev->mtu = new_mtu;
1061 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1062 * If the user configures more, place BE in vlan promiscuous mode.
1064 static int be_vid_config(struct be_adapter *adapter)
1066 u16 vids[BE_NUM_VLANS_SUPPORTED];
1070 /* No need to further configure vids if in promiscuous mode */
1071 if (adapter->promiscuous)
1074 if (adapter->vlans_added > be_max_vlans(adapter))
1075 goto set_vlan_promisc;
1077 /* Construct VLAN Table to give to HW */
1078 for (i = 0; i < VLAN_N_VID; i++)
1079 if (adapter->vlan_tag[i])
1080 vids[num++] = cpu_to_le16(i);
1082 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1086 /* Set to VLAN promisc mode as setting VLAN filter failed */
1087 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
1088 goto set_vlan_promisc;
1089 dev_err(&adapter->pdev->dev,
1090 "Setting HW VLAN filtering failed.\n");
1092 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1093 /* hw VLAN filtering re-enabled. */
1094 status = be_cmd_rx_filter(adapter,
1095 BE_FLAGS_VLAN_PROMISC, OFF);
1097 dev_info(&adapter->pdev->dev,
1098 "Disabling VLAN Promiscuous mode.\n");
1099 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1107 if (adapter->flags & BE_FLAGS_VLAN_PROMISC)
1110 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1112 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1113 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1115 dev_err(&adapter->pdev->dev,
1116 "Failed to enable VLAN Promiscuous mode.\n");
1120 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1122 struct be_adapter *adapter = netdev_priv(netdev);
1125 /* Packets with VID 0 are always received by Lancer by default */
1126 if (lancer_chip(adapter) && vid == 0)
1129 adapter->vlan_tag[vid] = 1;
1130 adapter->vlans_added++;
1132 status = be_vid_config(adapter);
1134 adapter->vlans_added--;
1135 adapter->vlan_tag[vid] = 0;
1141 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1143 struct be_adapter *adapter = netdev_priv(netdev);
1146 /* Packets with VID 0 are always received by Lancer by default */
1147 if (lancer_chip(adapter) && vid == 0)
1150 adapter->vlan_tag[vid] = 0;
1151 status = be_vid_config(adapter);
1153 adapter->vlans_added--;
1155 adapter->vlan_tag[vid] = 1;
1160 static void be_set_rx_mode(struct net_device *netdev)
1162 struct be_adapter *adapter = netdev_priv(netdev);
1165 if (netdev->flags & IFF_PROMISC) {
1166 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1167 adapter->promiscuous = true;
1171 /* BE was previously in promiscuous mode; disable it */
1172 if (adapter->promiscuous) {
1173 adapter->promiscuous = false;
1174 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1176 if (adapter->vlans_added)
1177 be_vid_config(adapter);
1180 /* Enable multicast promisc if num configured exceeds what we support */
1181 if (netdev->flags & IFF_ALLMULTI ||
1182 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1183 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1187 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1188 struct netdev_hw_addr *ha;
1189 int i = 1; /* First slot is claimed by the Primary MAC */
1191 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1192 be_cmd_pmac_del(adapter, adapter->if_handle,
1193 adapter->pmac_id[i], 0);
1196 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1197 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1198 adapter->promiscuous = true;
1202 netdev_for_each_uc_addr(ha, adapter->netdev) {
1203 adapter->uc_macs++; /* First slot is for Primary MAC */
1204 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1206 &adapter->pmac_id[adapter->uc_macs], 0);
1210 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1212 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1214 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1215 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1216 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1222 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1224 struct be_adapter *adapter = netdev_priv(netdev);
1225 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1228 if (!sriov_enabled(adapter))
1231 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1234 if (BEx_chip(adapter)) {
1235 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1238 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1239 &vf_cfg->pmac_id, vf + 1);
1241 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1246 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1249 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1254 static int be_get_vf_config(struct net_device *netdev, int vf,
1255 struct ifla_vf_info *vi)
1257 struct be_adapter *adapter = netdev_priv(netdev);
1258 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1260 if (!sriov_enabled(adapter))
1263 if (vf >= adapter->num_vfs)
1267 vi->tx_rate = vf_cfg->tx_rate;
1268 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1269 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1270 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1275 static int be_set_vf_vlan(struct net_device *netdev,
1276 int vf, u16 vlan, u8 qos)
1278 struct be_adapter *adapter = netdev_priv(netdev);
1279 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1282 if (!sriov_enabled(adapter))
1285 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1289 vlan |= qos << VLAN_PRIO_SHIFT;
1290 if (vf_cfg->vlan_tag != vlan) {
1291 /* If this is new value, program it. Else skip. */
1292 vf_cfg->vlan_tag = vlan;
1293 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1294 vf_cfg->if_handle, 0);
1297 /* Reset Transparent Vlan Tagging. */
1298 vf_cfg->vlan_tag = 0;
1299 vlan = vf_cfg->def_vid;
1300 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1301 vf_cfg->if_handle, 0);
1306 dev_info(&adapter->pdev->dev,
1307 "VLAN %d config on VF %d failed\n", vlan, vf);
1311 static int be_set_vf_tx_rate(struct net_device *netdev,
1314 struct be_adapter *adapter = netdev_priv(netdev);
1317 if (!sriov_enabled(adapter))
1320 if (vf >= adapter->num_vfs)
1323 if (rate < 100 || rate > 10000) {
1324 dev_err(&adapter->pdev->dev,
1325 "tx rate must be between 100 and 10000 Mbps\n");
1329 if (lancer_chip(adapter))
1330 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1332 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1335 dev_err(&adapter->pdev->dev,
1336 "tx rate %d on VF %d failed\n", rate, vf);
1338 adapter->vf_cfg[vf].tx_rate = rate;
1342 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1345 aic->rx_pkts_prev = rx_pkts;
1346 aic->tx_reqs_prev = tx_pkts;
1350 static void be_eqd_update(struct be_adapter *adapter)
1352 struct be_set_eqd set_eqd[MAX_EVT_QS];
1353 int eqd, i, num = 0, start;
1354 struct be_aic_obj *aic;
1355 struct be_eq_obj *eqo;
1356 struct be_rx_obj *rxo;
1357 struct be_tx_obj *txo;
1358 u64 rx_pkts, tx_pkts;
1362 for_all_evt_queues(adapter, eqo, i) {
1363 aic = &adapter->aic_obj[eqo->idx];
1371 rxo = &adapter->rx_obj[eqo->idx];
1373 start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
1374 rx_pkts = rxo->stats.rx_pkts;
1375 } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
1377 txo = &adapter->tx_obj[eqo->idx];
1379 start = u64_stats_fetch_begin_bh(&txo->stats.sync);
1380 tx_pkts = txo->stats.tx_reqs;
1381 } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
1384 /* Skip, if wrapped around or first calculation */
1386 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1387 rx_pkts < aic->rx_pkts_prev ||
1388 tx_pkts < aic->tx_reqs_prev) {
1389 be_aic_update(aic, rx_pkts, tx_pkts, now);
1393 delta = jiffies_to_msecs(now - aic->jiffies);
1394 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1395 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1396 eqd = (pps / 15000) << 2;
1400 eqd = min_t(u32, eqd, aic->max_eqd);
1401 eqd = max_t(u32, eqd, aic->min_eqd);
1403 be_aic_update(aic, rx_pkts, tx_pkts, now);
1405 if (eqd != aic->prev_eqd) {
1406 set_eqd[num].delay_multiplier = (eqd * 65)/100;
1407 set_eqd[num].eq_id = eqo->q.id;
1408 aic->prev_eqd = eqd;
1414 be_cmd_modify_eqd(adapter, set_eqd, num);
1417 static void be_rx_stats_update(struct be_rx_obj *rxo,
1418 struct be_rx_compl_info *rxcp)
1420 struct be_rx_stats *stats = rx_stats(rxo);
1422 u64_stats_update_begin(&stats->sync);
1424 stats->rx_bytes += rxcp->pkt_size;
1426 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1427 stats->rx_mcast_pkts++;
1429 stats->rx_compl_err++;
1430 u64_stats_update_end(&stats->sync);
1433 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1435 /* L4 checksum is not reliable for non TCP/UDP packets.
1436 * Also ignore ipcksm for ipv6 pkts */
1437 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1438 (rxcp->ip_csum || rxcp->ipv6);
1441 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
1443 struct be_adapter *adapter = rxo->adapter;
1444 struct be_rx_page_info *rx_page_info;
1445 struct be_queue_info *rxq = &rxo->q;
1446 u16 frag_idx = rxq->tail;
1448 rx_page_info = &rxo->page_info_tbl[frag_idx];
1449 BUG_ON(!rx_page_info->page);
1451 if (rx_page_info->last_page_user) {
1452 dma_unmap_page(&adapter->pdev->dev,
1453 dma_unmap_addr(rx_page_info, bus),
1454 adapter->big_page_size, DMA_FROM_DEVICE);
1455 rx_page_info->last_page_user = false;
1458 queue_tail_inc(rxq);
1459 atomic_dec(&rxq->used);
1460 return rx_page_info;
1463 /* Throwaway the data in the Rx completion */
1464 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1465 struct be_rx_compl_info *rxcp)
1467 struct be_rx_page_info *page_info;
1468 u16 i, num_rcvd = rxcp->num_rcvd;
1470 for (i = 0; i < num_rcvd; i++) {
1471 page_info = get_rx_page_info(rxo);
1472 put_page(page_info->page);
1473 memset(page_info, 0, sizeof(*page_info));
1478 * skb_fill_rx_data forms a complete skb for an ether frame
1479 * indicated by rxcp.
1481 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1482 struct be_rx_compl_info *rxcp)
1484 struct be_rx_page_info *page_info;
1486 u16 hdr_len, curr_frag_len, remaining;
1489 page_info = get_rx_page_info(rxo);
1490 start = page_address(page_info->page) + page_info->page_offset;
1493 /* Copy data in the first descriptor of this completion */
1494 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1496 skb->len = curr_frag_len;
1497 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1498 memcpy(skb->data, start, curr_frag_len);
1499 /* Complete packet has now been moved to data */
1500 put_page(page_info->page);
1502 skb->tail += curr_frag_len;
1505 memcpy(skb->data, start, hdr_len);
1506 skb_shinfo(skb)->nr_frags = 1;
1507 skb_frag_set_page(skb, 0, page_info->page);
1508 skb_shinfo(skb)->frags[0].page_offset =
1509 page_info->page_offset + hdr_len;
1510 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1511 skb->data_len = curr_frag_len - hdr_len;
1512 skb->truesize += rx_frag_size;
1513 skb->tail += hdr_len;
1515 page_info->page = NULL;
1517 if (rxcp->pkt_size <= rx_frag_size) {
1518 BUG_ON(rxcp->num_rcvd != 1);
1522 /* More frags present for this completion */
1523 remaining = rxcp->pkt_size - curr_frag_len;
1524 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1525 page_info = get_rx_page_info(rxo);
1526 curr_frag_len = min(remaining, rx_frag_size);
1528 /* Coalesce all frags from the same physical page in one slot */
1529 if (page_info->page_offset == 0) {
1532 skb_frag_set_page(skb, j, page_info->page);
1533 skb_shinfo(skb)->frags[j].page_offset =
1534 page_info->page_offset;
1535 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1536 skb_shinfo(skb)->nr_frags++;
1538 put_page(page_info->page);
1541 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1542 skb->len += curr_frag_len;
1543 skb->data_len += curr_frag_len;
1544 skb->truesize += rx_frag_size;
1545 remaining -= curr_frag_len;
1546 page_info->page = NULL;
1548 BUG_ON(j > MAX_SKB_FRAGS);
1551 /* Process the RX completion indicated by rxcp when GRO is disabled */
1552 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1553 struct be_rx_compl_info *rxcp)
1555 struct be_adapter *adapter = rxo->adapter;
1556 struct net_device *netdev = adapter->netdev;
1557 struct sk_buff *skb;
1559 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1560 if (unlikely(!skb)) {
1561 rx_stats(rxo)->rx_drops_no_skbs++;
1562 be_rx_compl_discard(rxo, rxcp);
1566 skb_fill_rx_data(rxo, skb, rxcp);
1568 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1569 skb->ip_summed = CHECKSUM_UNNECESSARY;
1571 skb_checksum_none_assert(skb);
1573 skb->protocol = eth_type_trans(skb, netdev);
1574 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1575 if (netdev->features & NETIF_F_RXHASH)
1576 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1577 skb_mark_napi_id(skb, napi);
1580 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1582 netif_receive_skb(skb);
1585 /* Process the RX completion indicated by rxcp when GRO is enabled */
1586 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1587 struct napi_struct *napi,
1588 struct be_rx_compl_info *rxcp)
1590 struct be_adapter *adapter = rxo->adapter;
1591 struct be_rx_page_info *page_info;
1592 struct sk_buff *skb = NULL;
1593 u16 remaining, curr_frag_len;
1596 skb = napi_get_frags(napi);
1598 be_rx_compl_discard(rxo, rxcp);
1602 remaining = rxcp->pkt_size;
1603 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1604 page_info = get_rx_page_info(rxo);
1606 curr_frag_len = min(remaining, rx_frag_size);
1608 /* Coalesce all frags from the same physical page in one slot */
1609 if (i == 0 || page_info->page_offset == 0) {
1610 /* First frag or Fresh page */
1612 skb_frag_set_page(skb, j, page_info->page);
1613 skb_shinfo(skb)->frags[j].page_offset =
1614 page_info->page_offset;
1615 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1617 put_page(page_info->page);
1619 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1620 skb->truesize += rx_frag_size;
1621 remaining -= curr_frag_len;
1622 memset(page_info, 0, sizeof(*page_info));
1624 BUG_ON(j > MAX_SKB_FRAGS);
1626 skb_shinfo(skb)->nr_frags = j + 1;
1627 skb->len = rxcp->pkt_size;
1628 skb->data_len = rxcp->pkt_size;
1629 skb->ip_summed = CHECKSUM_UNNECESSARY;
1630 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1631 if (adapter->netdev->features & NETIF_F_RXHASH)
1632 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1633 skb_mark_napi_id(skb, napi);
1636 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1638 napi_gro_frags(napi);
1641 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1642 struct be_rx_compl_info *rxcp)
1645 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1646 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1647 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1648 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1649 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1651 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1653 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1655 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1657 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1659 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1661 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1663 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1665 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1668 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1671 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1672 struct be_rx_compl_info *rxcp)
1675 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1676 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1677 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1678 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1679 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1681 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1683 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1685 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1687 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1689 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1691 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1693 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1695 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1698 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1699 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1703 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1705 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1706 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1707 struct be_adapter *adapter = rxo->adapter;
1709 /* For checking the valid bit it is Ok to use either definition as the
1710 * valid bit is at the same position in both v0 and v1 Rx compl */
1711 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1715 be_dws_le_to_cpu(compl, sizeof(*compl));
1717 if (adapter->be3_native)
1718 be_parse_rx_compl_v1(compl, rxcp);
1720 be_parse_rx_compl_v0(compl, rxcp);
1726 /* vlanf could be wrongly set in some cards.
1727 * ignore if vtm is not set */
1728 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1731 if (!lancer_chip(adapter))
1732 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1734 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1735 !adapter->vlan_tag[rxcp->vlan_tag])
1739 /* As the compl has been parsed, reset it; we wont touch it again */
1740 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1742 queue_tail_inc(&rxo->cq);
1746 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1748 u32 order = get_order(size);
1752 return alloc_pages(gfp, order);
1756 * Allocate a page, split it to fragments of size rx_frag_size and post as
1757 * receive buffers to BE
1759 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1761 struct be_adapter *adapter = rxo->adapter;
1762 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1763 struct be_queue_info *rxq = &rxo->q;
1764 struct page *pagep = NULL;
1765 struct device *dev = &adapter->pdev->dev;
1766 struct be_eth_rx_d *rxd;
1767 u64 page_dmaaddr = 0, frag_dmaaddr;
1768 u32 posted, page_offset = 0;
1770 page_info = &rxo->page_info_tbl[rxq->head];
1771 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1773 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1774 if (unlikely(!pagep)) {
1775 rx_stats(rxo)->rx_post_fail++;
1778 page_dmaaddr = dma_map_page(dev, pagep, 0,
1779 adapter->big_page_size,
1781 if (dma_mapping_error(dev, page_dmaaddr)) {
1784 rx_stats(rxo)->rx_post_fail++;
1787 page_info->page_offset = 0;
1790 page_info->page_offset = page_offset + rx_frag_size;
1792 page_offset = page_info->page_offset;
1793 page_info->page = pagep;
1794 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1795 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1797 rxd = queue_head_node(rxq);
1798 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1799 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1801 /* Any space left in the current big page for another frag? */
1802 if ((page_offset + rx_frag_size + rx_frag_size) >
1803 adapter->big_page_size) {
1805 page_info->last_page_user = true;
1808 prev_page_info = page_info;
1809 queue_head_inc(rxq);
1810 page_info = &rxo->page_info_tbl[rxq->head];
1813 prev_page_info->last_page_user = true;
1816 atomic_add(posted, &rxq->used);
1817 if (rxo->rx_post_starved)
1818 rxo->rx_post_starved = false;
1819 be_rxq_notify(adapter, rxq->id, posted);
1820 } else if (atomic_read(&rxq->used) == 0) {
1821 /* Let be_worker replenish when memory is available */
1822 rxo->rx_post_starved = true;
1826 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1828 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1830 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1834 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1836 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1838 queue_tail_inc(tx_cq);
1842 static u16 be_tx_compl_process(struct be_adapter *adapter,
1843 struct be_tx_obj *txo, u16 last_index)
1845 struct be_queue_info *txq = &txo->q;
1846 struct be_eth_wrb *wrb;
1847 struct sk_buff **sent_skbs = txo->sent_skb_list;
1848 struct sk_buff *sent_skb;
1849 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1850 bool unmap_skb_hdr = true;
1852 sent_skb = sent_skbs[txq->tail];
1854 sent_skbs[txq->tail] = NULL;
1856 /* skip header wrb */
1857 queue_tail_inc(txq);
1860 cur_index = txq->tail;
1861 wrb = queue_tail_node(txq);
1862 unmap_tx_frag(&adapter->pdev->dev, wrb,
1863 (unmap_skb_hdr && skb_headlen(sent_skb)));
1864 unmap_skb_hdr = false;
1867 queue_tail_inc(txq);
1868 } while (cur_index != last_index);
1870 kfree_skb(sent_skb);
1874 /* Return the number of events in the event queue */
1875 static inline int events_get(struct be_eq_obj *eqo)
1877 struct be_eq_entry *eqe;
1881 eqe = queue_tail_node(&eqo->q);
1888 queue_tail_inc(&eqo->q);
1894 /* Leaves the EQ is disarmed state */
1895 static void be_eq_clean(struct be_eq_obj *eqo)
1897 int num = events_get(eqo);
1899 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1902 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1904 struct be_rx_page_info *page_info;
1905 struct be_queue_info *rxq = &rxo->q;
1906 struct be_queue_info *rx_cq = &rxo->cq;
1907 struct be_rx_compl_info *rxcp;
1908 struct be_adapter *adapter = rxo->adapter;
1911 /* Consume pending rx completions.
1912 * Wait for the flush completion (identified by zero num_rcvd)
1913 * to arrive. Notify CQ even when there are no more CQ entries
1914 * for HW to flush partially coalesced CQ entries.
1915 * In Lancer, there is no need to wait for flush compl.
1918 rxcp = be_rx_compl_get(rxo);
1920 if (lancer_chip(adapter))
1923 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1924 dev_warn(&adapter->pdev->dev,
1925 "did not receive flush compl\n");
1928 be_cq_notify(adapter, rx_cq->id, true, 0);
1931 be_rx_compl_discard(rxo, rxcp);
1932 be_cq_notify(adapter, rx_cq->id, false, 1);
1933 if (rxcp->num_rcvd == 0)
1938 /* After cleanup, leave the CQ in unarmed state */
1939 be_cq_notify(adapter, rx_cq->id, false, 0);
1941 /* Then free posted rx buffers that were not used */
1942 while (atomic_read(&rxq->used) > 0) {
1943 page_info = get_rx_page_info(rxo);
1944 put_page(page_info->page);
1945 memset(page_info, 0, sizeof(*page_info));
1947 BUG_ON(atomic_read(&rxq->used));
1948 rxq->tail = rxq->head = 0;
1951 static void be_tx_compl_clean(struct be_adapter *adapter)
1953 struct be_tx_obj *txo;
1954 struct be_queue_info *txq;
1955 struct be_eth_tx_compl *txcp;
1956 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1957 struct sk_buff *sent_skb;
1959 int i, pending_txqs;
1961 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1963 pending_txqs = adapter->num_tx_qs;
1965 for_all_tx_queues(adapter, txo, i) {
1967 while ((txcp = be_tx_compl_get(&txo->cq))) {
1969 AMAP_GET_BITS(struct amap_eth_tx_compl,
1971 num_wrbs += be_tx_compl_process(adapter, txo,
1976 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1977 atomic_sub(num_wrbs, &txq->used);
1981 if (atomic_read(&txq->used) == 0)
1985 if (pending_txqs == 0 || ++timeo > 200)
1991 for_all_tx_queues(adapter, txo, i) {
1993 if (atomic_read(&txq->used))
1994 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1995 atomic_read(&txq->used));
1997 /* free posted tx for which compls will never arrive */
1998 while (atomic_read(&txq->used)) {
1999 sent_skb = txo->sent_skb_list[txq->tail];
2000 end_idx = txq->tail;
2001 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2003 index_adv(&end_idx, num_wrbs - 1, txq->len);
2004 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2005 atomic_sub(num_wrbs, &txq->used);
2010 static void be_evt_queues_destroy(struct be_adapter *adapter)
2012 struct be_eq_obj *eqo;
2015 for_all_evt_queues(adapter, eqo, i) {
2016 if (eqo->q.created) {
2018 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2019 napi_hash_del(&eqo->napi);
2020 netif_napi_del(&eqo->napi);
2022 be_queue_free(adapter, &eqo->q);
2026 static int be_evt_queues_create(struct be_adapter *adapter)
2028 struct be_queue_info *eq;
2029 struct be_eq_obj *eqo;
2030 struct be_aic_obj *aic;
2033 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2034 adapter->cfg_num_qs);
2036 for_all_evt_queues(adapter, eqo, i) {
2037 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2039 napi_hash_add(&eqo->napi);
2040 aic = &adapter->aic_obj[i];
2041 eqo->adapter = adapter;
2042 eqo->tx_budget = BE_TX_BUDGET;
2044 aic->max_eqd = BE_MAX_EQD;
2048 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2049 sizeof(struct be_eq_entry));
2053 rc = be_cmd_eq_create(adapter, eqo);
2060 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2062 struct be_queue_info *q;
2064 q = &adapter->mcc_obj.q;
2066 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2067 be_queue_free(adapter, q);
2069 q = &adapter->mcc_obj.cq;
2071 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2072 be_queue_free(adapter, q);
2075 /* Must be called only after TX qs are created as MCC shares TX EQ */
2076 static int be_mcc_queues_create(struct be_adapter *adapter)
2078 struct be_queue_info *q, *cq;
2080 cq = &adapter->mcc_obj.cq;
2081 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2082 sizeof(struct be_mcc_compl)))
2085 /* Use the default EQ for MCC completions */
2086 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2089 q = &adapter->mcc_obj.q;
2090 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2091 goto mcc_cq_destroy;
2093 if (be_cmd_mccq_create(adapter, q, cq))
2099 be_queue_free(adapter, q);
2101 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2103 be_queue_free(adapter, cq);
2108 static void be_tx_queues_destroy(struct be_adapter *adapter)
2110 struct be_queue_info *q;
2111 struct be_tx_obj *txo;
2114 for_all_tx_queues(adapter, txo, i) {
2117 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2118 be_queue_free(adapter, q);
2122 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2123 be_queue_free(adapter, q);
2127 static int be_tx_qs_create(struct be_adapter *adapter)
2129 struct be_queue_info *cq, *eq;
2130 struct be_tx_obj *txo;
2133 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2135 for_all_tx_queues(adapter, txo, i) {
2137 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2138 sizeof(struct be_eth_tx_compl));
2142 u64_stats_init(&txo->stats.sync);
2143 u64_stats_init(&txo->stats.sync_compl);
2145 /* If num_evt_qs is less than num_tx_qs, then more than
2146 * one txq share an eq
2148 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2149 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2153 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2154 sizeof(struct be_eth_wrb));
2158 status = be_cmd_txq_create(adapter, txo);
2163 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2164 adapter->num_tx_qs);
2168 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2170 struct be_queue_info *q;
2171 struct be_rx_obj *rxo;
2174 for_all_rx_queues(adapter, rxo, i) {
2177 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2178 be_queue_free(adapter, q);
2182 static int be_rx_cqs_create(struct be_adapter *adapter)
2184 struct be_queue_info *eq, *cq;
2185 struct be_rx_obj *rxo;
2188 /* We can create as many RSS rings as there are EQs. */
2189 adapter->num_rx_qs = adapter->num_evt_qs;
2191 /* We'll use RSS only if atleast 2 RSS rings are supported.
2192 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2194 if (adapter->num_rx_qs > 1)
2195 adapter->num_rx_qs++;
2197 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2198 for_all_rx_queues(adapter, rxo, i) {
2199 rxo->adapter = adapter;
2201 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2202 sizeof(struct be_eth_rx_compl));
2206 u64_stats_init(&rxo->stats.sync);
2207 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2208 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2213 dev_info(&adapter->pdev->dev,
2214 "created %d RSS queue(s) and 1 default RX queue\n",
2215 adapter->num_rx_qs - 1);
2219 static irqreturn_t be_intx(int irq, void *dev)
2221 struct be_eq_obj *eqo = dev;
2222 struct be_adapter *adapter = eqo->adapter;
2225 /* IRQ is not expected when NAPI is scheduled as the EQ
2226 * will not be armed.
2227 * But, this can happen on Lancer INTx where it takes
2228 * a while to de-assert INTx or in BE2 where occasionaly
2229 * an interrupt may be raised even when EQ is unarmed.
2230 * If NAPI is already scheduled, then counting & notifying
2231 * events will orphan them.
2233 if (napi_schedule_prep(&eqo->napi)) {
2234 num_evts = events_get(eqo);
2235 __napi_schedule(&eqo->napi);
2237 eqo->spurious_intr = 0;
2239 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2241 /* Return IRQ_HANDLED only for the the first spurious intr
2242 * after a valid intr to stop the kernel from branding
2243 * this irq as a bad one!
2245 if (num_evts || eqo->spurious_intr++ == 0)
2251 static irqreturn_t be_msix(int irq, void *dev)
2253 struct be_eq_obj *eqo = dev;
2255 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2256 napi_schedule(&eqo->napi);
2260 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2262 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2265 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2266 int budget, int polling)
2268 struct be_adapter *adapter = rxo->adapter;
2269 struct be_queue_info *rx_cq = &rxo->cq;
2270 struct be_rx_compl_info *rxcp;
2273 for (work_done = 0; work_done < budget; work_done++) {
2274 rxcp = be_rx_compl_get(rxo);
2278 /* Is it a flush compl that has no data */
2279 if (unlikely(rxcp->num_rcvd == 0))
2282 /* Discard compl with partial DMA Lancer B0 */
2283 if (unlikely(!rxcp->pkt_size)) {
2284 be_rx_compl_discard(rxo, rxcp);
2288 /* On BE drop pkts that arrive due to imperfect filtering in
2289 * promiscuous mode on some skews
2291 if (unlikely(rxcp->port != adapter->port_num &&
2292 !lancer_chip(adapter))) {
2293 be_rx_compl_discard(rxo, rxcp);
2297 /* Don't do gro when we're busy_polling */
2298 if (do_gro(rxcp) && polling != BUSY_POLLING)
2299 be_rx_compl_process_gro(rxo, napi, rxcp);
2301 be_rx_compl_process(rxo, napi, rxcp);
2304 be_rx_stats_update(rxo, rxcp);
2308 be_cq_notify(adapter, rx_cq->id, true, work_done);
2310 /* When an rx-obj gets into post_starved state, just
2311 * let be_worker do the posting.
2313 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2314 !rxo->rx_post_starved)
2315 be_post_rx_frags(rxo, GFP_ATOMIC);
2321 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2322 int budget, int idx)
2324 struct be_eth_tx_compl *txcp;
2325 int num_wrbs = 0, work_done;
2327 for (work_done = 0; work_done < budget; work_done++) {
2328 txcp = be_tx_compl_get(&txo->cq);
2331 num_wrbs += be_tx_compl_process(adapter, txo,
2332 AMAP_GET_BITS(struct amap_eth_tx_compl,
2337 be_cq_notify(adapter, txo->cq.id, true, work_done);
2338 atomic_sub(num_wrbs, &txo->q.used);
2340 /* As Tx wrbs have been freed up, wake up netdev queue
2341 * if it was stopped due to lack of tx wrbs. */
2342 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2343 atomic_read(&txo->q.used) < txo->q.len / 2) {
2344 netif_wake_subqueue(adapter->netdev, idx);
2347 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2348 tx_stats(txo)->tx_compl += work_done;
2349 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2351 return (work_done < budget); /* Done */
2354 int be_poll(struct napi_struct *napi, int budget)
2356 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2357 struct be_adapter *adapter = eqo->adapter;
2358 int max_work = 0, work, i, num_evts;
2359 struct be_rx_obj *rxo;
2362 num_evts = events_get(eqo);
2364 /* Process all TXQs serviced by this EQ */
2365 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2366 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2372 if (be_lock_napi(eqo)) {
2373 /* This loop will iterate twice for EQ0 in which
2374 * completions of the last RXQ (default one) are also processed
2375 * For other EQs the loop iterates only once
2377 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2378 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2379 max_work = max(work, max_work);
2381 be_unlock_napi(eqo);
2386 if (is_mcc_eqo(eqo))
2387 be_process_mcc(adapter);
2389 if (max_work < budget) {
2390 napi_complete(napi);
2391 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2393 /* As we'll continue in polling mode, count and clear events */
2394 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2399 #ifdef CONFIG_NET_RX_BUSY_POLL
2400 static int be_busy_poll(struct napi_struct *napi)
2402 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2403 struct be_adapter *adapter = eqo->adapter;
2404 struct be_rx_obj *rxo;
2407 if (!be_lock_busy_poll(eqo))
2408 return LL_FLUSH_BUSY;
2410 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2411 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2416 be_unlock_busy_poll(eqo);
2421 void be_detect_error(struct be_adapter *adapter)
2423 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2424 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2427 if (be_hw_error(adapter))
2430 if (lancer_chip(adapter)) {
2431 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2432 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2433 sliport_err1 = ioread32(adapter->db +
2434 SLIPORT_ERROR1_OFFSET);
2435 sliport_err2 = ioread32(adapter->db +
2436 SLIPORT_ERROR2_OFFSET);
2439 pci_read_config_dword(adapter->pdev,
2440 PCICFG_UE_STATUS_LOW, &ue_lo);
2441 pci_read_config_dword(adapter->pdev,
2442 PCICFG_UE_STATUS_HIGH, &ue_hi);
2443 pci_read_config_dword(adapter->pdev,
2444 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2445 pci_read_config_dword(adapter->pdev,
2446 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2448 ue_lo = (ue_lo & ~ue_lo_mask);
2449 ue_hi = (ue_hi & ~ue_hi_mask);
2452 /* On certain platforms BE hardware can indicate spurious UEs.
2453 * Allow the h/w to stop working completely in case of a real UE.
2454 * Hence not setting the hw_error for UE detection.
2456 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2457 adapter->hw_error = true;
2458 /* Do not log error messages if its a FW reset */
2459 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
2460 sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
2461 dev_info(&adapter->pdev->dev,
2462 "Firmware update in progress\n");
2465 dev_err(&adapter->pdev->dev,
2466 "Error detected in the card\n");
2470 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2471 dev_err(&adapter->pdev->dev,
2472 "ERR: sliport status 0x%x\n", sliport_status);
2473 dev_err(&adapter->pdev->dev,
2474 "ERR: sliport error1 0x%x\n", sliport_err1);
2475 dev_err(&adapter->pdev->dev,
2476 "ERR: sliport error2 0x%x\n", sliport_err2);
2480 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2482 dev_err(&adapter->pdev->dev,
2483 "UE: %s bit set\n", ue_status_low_desc[i]);
2488 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2490 dev_err(&adapter->pdev->dev,
2491 "UE: %s bit set\n", ue_status_hi_desc[i]);
2497 static void be_msix_disable(struct be_adapter *adapter)
2499 if (msix_enabled(adapter)) {
2500 pci_disable_msix(adapter->pdev);
2501 adapter->num_msix_vec = 0;
2502 adapter->num_msix_roce_vec = 0;
2506 static int be_msix_enable(struct be_adapter *adapter)
2508 int i, status, num_vec;
2509 struct device *dev = &adapter->pdev->dev;
2511 /* If RoCE is supported, program the max number of NIC vectors that
2512 * may be configured via set-channels, along with vectors needed for
2513 * RoCe. Else, just program the number we'll use initially.
2515 if (be_roce_supported(adapter))
2516 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2517 2 * num_online_cpus());
2519 num_vec = adapter->cfg_num_qs;
2521 for (i = 0; i < num_vec; i++)
2522 adapter->msix_entries[i].entry = i;
2524 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2527 } else if (status >= MIN_MSIX_VECTORS) {
2529 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2535 dev_warn(dev, "MSIx enable failed\n");
2537 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2538 if (!be_physfn(adapter))
2542 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2543 adapter->num_msix_roce_vec = num_vec / 2;
2544 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2545 adapter->num_msix_roce_vec);
2548 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2550 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2551 adapter->num_msix_vec);
2555 static inline int be_msix_vec_get(struct be_adapter *adapter,
2556 struct be_eq_obj *eqo)
2558 return adapter->msix_entries[eqo->msix_idx].vector;
2561 static int be_msix_register(struct be_adapter *adapter)
2563 struct net_device *netdev = adapter->netdev;
2564 struct be_eq_obj *eqo;
2567 for_all_evt_queues(adapter, eqo, i) {
2568 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2569 vec = be_msix_vec_get(adapter, eqo);
2570 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2577 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2578 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2579 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2581 be_msix_disable(adapter);
2585 static int be_irq_register(struct be_adapter *adapter)
2587 struct net_device *netdev = adapter->netdev;
2590 if (msix_enabled(adapter)) {
2591 status = be_msix_register(adapter);
2594 /* INTx is not supported for VF */
2595 if (!be_physfn(adapter))
2599 /* INTx: only the first EQ is used */
2600 netdev->irq = adapter->pdev->irq;
2601 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2602 &adapter->eq_obj[0]);
2604 dev_err(&adapter->pdev->dev,
2605 "INTx request IRQ failed - err %d\n", status);
2609 adapter->isr_registered = true;
2613 static void be_irq_unregister(struct be_adapter *adapter)
2615 struct net_device *netdev = adapter->netdev;
2616 struct be_eq_obj *eqo;
2619 if (!adapter->isr_registered)
2623 if (!msix_enabled(adapter)) {
2624 free_irq(netdev->irq, &adapter->eq_obj[0]);
2629 for_all_evt_queues(adapter, eqo, i)
2630 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2633 adapter->isr_registered = false;
2636 static void be_rx_qs_destroy(struct be_adapter *adapter)
2638 struct be_queue_info *q;
2639 struct be_rx_obj *rxo;
2642 for_all_rx_queues(adapter, rxo, i) {
2645 be_cmd_rxq_destroy(adapter, q);
2646 be_rx_cq_clean(rxo);
2648 be_queue_free(adapter, q);
2652 static int be_close(struct net_device *netdev)
2654 struct be_adapter *adapter = netdev_priv(netdev);
2655 struct be_eq_obj *eqo;
2658 be_roce_dev_close(adapter);
2660 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2661 for_all_evt_queues(adapter, eqo, i) {
2662 napi_disable(&eqo->napi);
2663 be_disable_busy_poll(eqo);
2665 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2668 be_async_mcc_disable(adapter);
2670 /* Wait for all pending tx completions to arrive so that
2671 * all tx skbs are freed.
2673 netif_tx_disable(netdev);
2674 be_tx_compl_clean(adapter);
2676 be_rx_qs_destroy(adapter);
2678 for (i = 1; i < (adapter->uc_macs + 1); i++)
2679 be_cmd_pmac_del(adapter, adapter->if_handle,
2680 adapter->pmac_id[i], 0);
2681 adapter->uc_macs = 0;
2683 for_all_evt_queues(adapter, eqo, i) {
2684 if (msix_enabled(adapter))
2685 synchronize_irq(be_msix_vec_get(adapter, eqo));
2687 synchronize_irq(netdev->irq);
2691 be_irq_unregister(adapter);
2696 static int be_rx_qs_create(struct be_adapter *adapter)
2698 struct be_rx_obj *rxo;
2702 for_all_rx_queues(adapter, rxo, i) {
2703 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2704 sizeof(struct be_eth_rx_d));
2709 /* The FW would like the default RXQ to be created first */
2710 rxo = default_rxo(adapter);
2711 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2712 adapter->if_handle, false, &rxo->rss_id);
2716 for_all_rss_queues(adapter, rxo, i) {
2717 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2718 rx_frag_size, adapter->if_handle,
2719 true, &rxo->rss_id);
2724 if (be_multi_rxq(adapter)) {
2725 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2726 for_all_rss_queues(adapter, rxo, i) {
2729 rsstable[j + i] = rxo->rss_id;
2732 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2733 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2735 if (!BEx_chip(adapter))
2736 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2737 RSS_ENABLE_UDP_IPV6;
2739 /* Disable RSS, if only default RX Q is created */
2740 adapter->rss_flags = RSS_ENABLE_NONE;
2743 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2746 adapter->rss_flags = RSS_ENABLE_NONE;
2750 /* First time posting */
2751 for_all_rx_queues(adapter, rxo, i)
2752 be_post_rx_frags(rxo, GFP_KERNEL);
2756 static int be_open(struct net_device *netdev)
2758 struct be_adapter *adapter = netdev_priv(netdev);
2759 struct be_eq_obj *eqo;
2760 struct be_rx_obj *rxo;
2761 struct be_tx_obj *txo;
2765 status = be_rx_qs_create(adapter);
2769 status = be_irq_register(adapter);
2773 for_all_rx_queues(adapter, rxo, i)
2774 be_cq_notify(adapter, rxo->cq.id, true, 0);
2776 for_all_tx_queues(adapter, txo, i)
2777 be_cq_notify(adapter, txo->cq.id, true, 0);
2779 be_async_mcc_enable(adapter);
2781 for_all_evt_queues(adapter, eqo, i) {
2782 napi_enable(&eqo->napi);
2783 be_enable_busy_poll(eqo);
2784 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2786 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2788 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2790 be_link_status_update(adapter, link_status);
2792 netif_tx_start_all_queues(netdev);
2793 be_roce_dev_open(adapter);
2796 be_close(adapter->netdev);
2800 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2802 struct be_dma_mem cmd;
2806 memset(mac, 0, ETH_ALEN);
2808 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2809 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2815 status = pci_write_config_dword(adapter->pdev,
2816 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2818 dev_err(&adapter->pdev->dev,
2819 "Could not enable Wake-on-lan\n");
2820 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2824 status = be_cmd_enable_magic_wol(adapter,
2825 adapter->netdev->dev_addr, &cmd);
2826 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2827 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2829 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2830 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2831 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2834 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2839 * Generate a seed MAC address from the PF MAC Address using jhash.
2840 * MAC Address for VFs are assigned incrementally starting from the seed.
2841 * These addresses are programmed in the ASIC by the PF and the VF driver
2842 * queries for the MAC address during its probe.
2844 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2849 struct be_vf_cfg *vf_cfg;
2851 be_vf_eth_addr_generate(adapter, mac);
2853 for_all_vfs(adapter, vf_cfg, vf) {
2854 if (BEx_chip(adapter))
2855 status = be_cmd_pmac_add(adapter, mac,
2857 &vf_cfg->pmac_id, vf + 1);
2859 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2863 dev_err(&adapter->pdev->dev,
2864 "Mac address assignment failed for VF %d\n", vf);
2866 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2873 static int be_vfs_mac_query(struct be_adapter *adapter)
2877 struct be_vf_cfg *vf_cfg;
2879 for_all_vfs(adapter, vf_cfg, vf) {
2880 status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
2881 mac, vf_cfg->if_handle,
2885 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2890 static void be_vf_clear(struct be_adapter *adapter)
2892 struct be_vf_cfg *vf_cfg;
2895 if (pci_vfs_assigned(adapter->pdev)) {
2896 dev_warn(&adapter->pdev->dev,
2897 "VFs are assigned to VMs: not disabling VFs\n");
2901 pci_disable_sriov(adapter->pdev);
2903 for_all_vfs(adapter, vf_cfg, vf) {
2904 if (BEx_chip(adapter))
2905 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2906 vf_cfg->pmac_id, vf + 1);
2908 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2911 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2914 kfree(adapter->vf_cfg);
2915 adapter->num_vfs = 0;
2918 static void be_clear_queues(struct be_adapter *adapter)
2920 be_mcc_queues_destroy(adapter);
2921 be_rx_cqs_destroy(adapter);
2922 be_tx_queues_destroy(adapter);
2923 be_evt_queues_destroy(adapter);
2926 static void be_cancel_worker(struct be_adapter *adapter)
2928 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2929 cancel_delayed_work_sync(&adapter->work);
2930 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2934 static void be_mac_clear(struct be_adapter *adapter)
2938 if (adapter->pmac_id) {
2939 for (i = 0; i < (adapter->uc_macs + 1); i++)
2940 be_cmd_pmac_del(adapter, adapter->if_handle,
2941 adapter->pmac_id[i], 0);
2942 adapter->uc_macs = 0;
2944 kfree(adapter->pmac_id);
2945 adapter->pmac_id = NULL;
2949 static int be_clear(struct be_adapter *adapter)
2951 be_cancel_worker(adapter);
2953 if (sriov_enabled(adapter))
2954 be_vf_clear(adapter);
2956 /* delete the primary mac along with the uc-mac list */
2957 be_mac_clear(adapter);
2959 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2961 be_clear_queues(adapter);
2963 be_msix_disable(adapter);
2967 static int be_vfs_if_create(struct be_adapter *adapter)
2969 struct be_resources res = {0};
2970 struct be_vf_cfg *vf_cfg;
2971 u32 cap_flags, en_flags, vf;
2974 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2975 BE_IF_FLAGS_MULTICAST;
2977 for_all_vfs(adapter, vf_cfg, vf) {
2978 if (!BE3_chip(adapter)) {
2979 status = be_cmd_get_profile_config(adapter, &res,
2982 cap_flags = res.if_cap_flags;
2985 /* If a FW profile exists, then cap_flags are updated */
2986 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2987 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2988 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2989 &vf_cfg->if_handle, vf + 1);
2997 static int be_vf_setup_init(struct be_adapter *adapter)
2999 struct be_vf_cfg *vf_cfg;
3002 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
3004 if (!adapter->vf_cfg)
3007 for_all_vfs(adapter, vf_cfg, vf) {
3008 vf_cfg->if_handle = -1;
3009 vf_cfg->pmac_id = -1;
3014 static int be_vf_setup(struct be_adapter *adapter)
3016 struct be_vf_cfg *vf_cfg;
3017 u16 def_vlan, lnk_speed;
3018 int status, old_vfs, vf;
3019 struct device *dev = &adapter->pdev->dev;
3022 old_vfs = pci_num_vf(adapter->pdev);
3024 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3025 if (old_vfs != num_vfs)
3026 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3027 adapter->num_vfs = old_vfs;
3029 if (num_vfs > be_max_vfs(adapter))
3030 dev_info(dev, "Device supports %d VFs and not %d\n",
3031 be_max_vfs(adapter), num_vfs);
3032 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3033 if (!adapter->num_vfs)
3037 status = be_vf_setup_init(adapter);
3042 for_all_vfs(adapter, vf_cfg, vf) {
3043 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3048 status = be_vfs_if_create(adapter);
3054 status = be_vfs_mac_query(adapter);
3058 status = be_vf_eth_addr_config(adapter);
3063 for_all_vfs(adapter, vf_cfg, vf) {
3064 /* Allow VFs to programs MAC/VLAN filters */
3065 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3066 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3067 status = be_cmd_set_fn_privileges(adapter,
3072 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3076 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
3077 * Allow full available bandwidth
3079 if (BE3_chip(adapter) && !old_vfs)
3080 be_cmd_set_qos(adapter, 1000, vf+1);
3082 status = be_cmd_link_status_query(adapter, &lnk_speed,
3085 vf_cfg->tx_rate = lnk_speed;
3087 status = be_cmd_get_hsw_config(adapter, &def_vlan,
3088 vf + 1, vf_cfg->if_handle, NULL);
3091 vf_cfg->def_vid = def_vlan;
3094 be_cmd_enable_vf(adapter, vf + 1);
3098 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3100 dev_err(dev, "SRIOV enable failed\n");
3101 adapter->num_vfs = 0;
3107 dev_err(dev, "VF setup failed\n");
3108 be_vf_clear(adapter);
3112 /* On BE2/BE3 FW does not suggest the supported limits */
3113 static void BEx_get_resources(struct be_adapter *adapter,
3114 struct be_resources *res)
3116 struct pci_dev *pdev = adapter->pdev;
3117 bool use_sriov = false;
3120 max_vfs = pci_sriov_get_totalvfs(pdev);
3122 if (BE3_chip(adapter) && sriov_want(adapter)) {
3123 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3124 use_sriov = res->max_vfs;
3127 if (be_physfn(adapter))
3128 res->max_uc_mac = BE_UC_PMAC_COUNT;
3130 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3132 if (adapter->function_mode & FLEX10_MODE)
3133 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3134 else if (adapter->function_mode & UMC_ENABLED)
3135 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
3137 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3138 res->max_mcast_mac = BE_MAX_MC;
3140 /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
3141 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
3142 !be_physfn(adapter) || (adapter->port_num > 1))
3145 res->max_tx_qs = BE3_MAX_TX_QS;
3147 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3148 !use_sriov && be_physfn(adapter))
3149 res->max_rss_qs = (adapter->be3_native) ?
3150 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3151 res->max_rx_qs = res->max_rss_qs + 1;
3153 if (be_physfn(adapter))
3154 res->max_evt_qs = (max_vfs > 0) ?
3155 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
3157 res->max_evt_qs = 1;
3159 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3160 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3161 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3164 static void be_setup_init(struct be_adapter *adapter)
3166 adapter->vlan_prio_bmap = 0xff;
3167 adapter->phy.link_speed = -1;
3168 adapter->if_handle = -1;
3169 adapter->be3_native = false;
3170 adapter->promiscuous = false;
3171 if (be_physfn(adapter))
3172 adapter->cmd_privileges = MAX_PRIVILEGES;
3174 adapter->cmd_privileges = MIN_PRIVILEGES;
3177 static int be_get_resources(struct be_adapter *adapter)
3179 struct device *dev = &adapter->pdev->dev;
3180 struct be_resources res = {0};
3183 if (BEx_chip(adapter)) {
3184 BEx_get_resources(adapter, &res);
3188 /* For Lancer, SH etc read per-function resource limits from FW.
3189 * GET_FUNC_CONFIG returns per function guaranteed limits.
3190 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3192 if (!BEx_chip(adapter)) {
3193 status = be_cmd_get_func_config(adapter, &res);
3197 /* If RoCE may be enabled stash away half the EQs for RoCE */
3198 if (be_roce_supported(adapter))
3199 res.max_evt_qs /= 2;
3202 if (be_physfn(adapter)) {
3203 status = be_cmd_get_profile_config(adapter, &res, 0);
3206 adapter->res.max_vfs = res.max_vfs;
3209 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3210 be_max_txqs(adapter), be_max_rxqs(adapter),
3211 be_max_rss(adapter), be_max_eqs(adapter),
3212 be_max_vfs(adapter));
3213 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3214 be_max_uc(adapter), be_max_mc(adapter),
3215 be_max_vlans(adapter));
3221 /* Routine to query per function resource limits */
3222 static int be_get_config(struct be_adapter *adapter)
3227 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3228 &adapter->function_mode,
3229 &adapter->function_caps,
3230 &adapter->asic_rev);
3234 if (be_physfn(adapter)) {
3235 status = be_cmd_get_active_profile(adapter, &profile_id);
3237 dev_info(&adapter->pdev->dev,
3238 "Using profile 0x%x\n", profile_id);
3241 status = be_get_resources(adapter);
3245 /* primary mac needs 1 pmac entry */
3246 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3248 if (!adapter->pmac_id)
3251 /* Sanitize cfg_num_qs based on HW and platform limits */
3252 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3257 static int be_mac_setup(struct be_adapter *adapter)
3262 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3263 status = be_cmd_get_perm_mac(adapter, mac);
3267 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3268 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3270 /* Maybe the HW was reset; dev_addr must be re-programmed */
3271 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3274 /* For BE3-R VFs, the PF programs the initial MAC address */
3275 if (!(BEx_chip(adapter) && be_virtfn(adapter)))
3276 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3277 &adapter->pmac_id[0], 0);
3281 static void be_schedule_worker(struct be_adapter *adapter)
3283 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3284 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3287 static int be_setup_queues(struct be_adapter *adapter)
3289 struct net_device *netdev = adapter->netdev;
3292 status = be_evt_queues_create(adapter);
3296 status = be_tx_qs_create(adapter);
3300 status = be_rx_cqs_create(adapter);
3304 status = be_mcc_queues_create(adapter);
3308 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3312 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3318 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3322 int be_update_queues(struct be_adapter *adapter)
3324 struct net_device *netdev = adapter->netdev;
3327 if (netif_running(netdev))
3330 be_cancel_worker(adapter);
3332 /* If any vectors have been shared with RoCE we cannot re-program
3335 if (!adapter->num_msix_roce_vec)
3336 be_msix_disable(adapter);
3338 be_clear_queues(adapter);
3340 if (!msix_enabled(adapter)) {
3341 status = be_msix_enable(adapter);
3346 status = be_setup_queues(adapter);
3350 be_schedule_worker(adapter);
3352 if (netif_running(netdev))
3353 status = be_open(netdev);
3358 static int be_setup(struct be_adapter *adapter)
3360 struct device *dev = &adapter->pdev->dev;
3361 u32 tx_fc, rx_fc, en_flags;
3364 be_setup_init(adapter);
3366 if (!lancer_chip(adapter))
3367 be_cmd_req_native_mode(adapter);
3369 status = be_get_config(adapter);
3373 status = be_msix_enable(adapter);
3377 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3378 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3379 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3380 en_flags |= BE_IF_FLAGS_RSS;
3381 en_flags = en_flags & be_if_cap_flags(adapter);
3382 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3383 &adapter->if_handle, 0);
3387 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3389 status = be_setup_queues(adapter);
3394 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3396 status = be_mac_setup(adapter);
3400 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3402 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
3403 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
3405 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
3408 if (adapter->vlans_added)
3409 be_vid_config(adapter);
3411 be_set_rx_mode(adapter->netdev);
3413 be_cmd_get_acpi_wol_cap(adapter);
3415 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3417 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3418 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3421 if (sriov_want(adapter)) {
3422 if (be_max_vfs(adapter))
3423 be_vf_setup(adapter);
3425 dev_warn(dev, "device doesn't support SRIOV\n");
3428 status = be_cmd_get_phy_info(adapter);
3429 if (!status && be_pause_supported(adapter))
3430 adapter->phy.fc_autoneg = 1;
3432 be_schedule_worker(adapter);
3439 #ifdef CONFIG_NET_POLL_CONTROLLER
3440 static void be_netpoll(struct net_device *netdev)
3442 struct be_adapter *adapter = netdev_priv(netdev);
3443 struct be_eq_obj *eqo;
3446 for_all_evt_queues(adapter, eqo, i) {
3447 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3448 napi_schedule(&eqo->napi);
3455 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3456 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3458 static bool be_flash_redboot(struct be_adapter *adapter,
3459 const u8 *p, u32 img_start, int image_size,
3466 crc_offset = hdr_size + img_start + image_size - 4;
3470 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3473 dev_err(&adapter->pdev->dev,
3474 "could not get crc from flash, not flashing redboot\n");
3478 /*update redboot only if crc does not match*/
3479 if (!memcmp(flashed_crc, p, 4))
3485 static bool phy_flashing_required(struct be_adapter *adapter)
3487 return (adapter->phy.phy_type == TN_8022 &&
3488 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3491 static bool is_comp_in_ufi(struct be_adapter *adapter,
3492 struct flash_section_info *fsec, int type)
3494 int i = 0, img_type = 0;
3495 struct flash_section_info_g2 *fsec_g2 = NULL;
3497 if (BE2_chip(adapter))
3498 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3500 for (i = 0; i < MAX_FLASH_COMP; i++) {
3502 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3504 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3506 if (img_type == type)
3513 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3515 const struct firmware *fw)
3517 struct flash_section_info *fsec = NULL;
3518 const u8 *p = fw->data;
3521 while (p < (fw->data + fw->size)) {
3522 fsec = (struct flash_section_info *)p;
3523 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3530 static int be_flash(struct be_adapter *adapter, const u8 *img,
3531 struct be_dma_mem *flash_cmd, int optype, int img_size)
3533 u32 total_bytes = 0, flash_op, num_bytes = 0;
3535 struct be_cmd_write_flashrom *req = flash_cmd->va;
3537 total_bytes = img_size;
3538 while (total_bytes) {
3539 num_bytes = min_t(u32, 32*1024, total_bytes);
3541 total_bytes -= num_bytes;
3544 if (optype == OPTYPE_PHY_FW)
3545 flash_op = FLASHROM_OPER_PHY_FLASH;
3547 flash_op = FLASHROM_OPER_FLASH;
3549 if (optype == OPTYPE_PHY_FW)
3550 flash_op = FLASHROM_OPER_PHY_SAVE;
3552 flash_op = FLASHROM_OPER_SAVE;
3555 memcpy(req->data_buf, img, num_bytes);
3557 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3558 flash_op, num_bytes);
3560 if (status == ILLEGAL_IOCTL_REQ &&
3561 optype == OPTYPE_PHY_FW)
3563 dev_err(&adapter->pdev->dev,
3564 "cmd to write to flash rom failed.\n");
3571 /* For BE2, BE3 and BE3-R */
3572 static int be_flash_BEx(struct be_adapter *adapter,
3573 const struct firmware *fw,
3574 struct be_dma_mem *flash_cmd,
3578 int status = 0, i, filehdr_size = 0;
3579 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3580 const u8 *p = fw->data;
3581 const struct flash_comp *pflashcomp;
3582 int num_comp, redboot;
3583 struct flash_section_info *fsec = NULL;
3585 struct flash_comp gen3_flash_types[] = {
3586 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3587 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3588 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3589 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3590 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3591 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3592 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3593 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3594 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3595 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3596 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3597 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3598 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3599 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3600 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3601 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3602 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3603 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3604 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3605 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3608 struct flash_comp gen2_flash_types[] = {
3609 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3610 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3611 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3612 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3613 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3614 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3615 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3616 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3617 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3618 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3619 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3620 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3621 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3622 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3623 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3624 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3627 if (BE3_chip(adapter)) {
3628 pflashcomp = gen3_flash_types;
3629 filehdr_size = sizeof(struct flash_file_hdr_g3);
3630 num_comp = ARRAY_SIZE(gen3_flash_types);
3632 pflashcomp = gen2_flash_types;
3633 filehdr_size = sizeof(struct flash_file_hdr_g2);
3634 num_comp = ARRAY_SIZE(gen2_flash_types);
3637 /* Get flash section info*/
3638 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3640 dev_err(&adapter->pdev->dev,
3641 "Invalid Cookie. UFI corrupted ?\n");
3644 for (i = 0; i < num_comp; i++) {
3645 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3648 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3649 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3652 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3653 !phy_flashing_required(adapter))
3656 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3657 redboot = be_flash_redboot(adapter, fw->data,
3658 pflashcomp[i].offset, pflashcomp[i].size,
3659 filehdr_size + img_hdrs_size);
3665 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3666 if (p + pflashcomp[i].size > fw->data + fw->size)
3669 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3670 pflashcomp[i].size);
3672 dev_err(&adapter->pdev->dev,
3673 "Flashing section type %d failed.\n",
3674 pflashcomp[i].img_type);
3681 static int be_flash_skyhawk(struct be_adapter *adapter,
3682 const struct firmware *fw,
3683 struct be_dma_mem *flash_cmd, int num_of_images)
3685 int status = 0, i, filehdr_size = 0;
3686 int img_offset, img_size, img_optype, redboot;
3687 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3688 const u8 *p = fw->data;
3689 struct flash_section_info *fsec = NULL;
3691 filehdr_size = sizeof(struct flash_file_hdr_g3);
3692 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3694 dev_err(&adapter->pdev->dev,
3695 "Invalid Cookie. UFI corrupted ?\n");
3699 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3700 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3701 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3703 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3704 case IMAGE_FIRMWARE_iSCSI:
3705 img_optype = OPTYPE_ISCSI_ACTIVE;
3707 case IMAGE_BOOT_CODE:
3708 img_optype = OPTYPE_REDBOOT;
3710 case IMAGE_OPTION_ROM_ISCSI:
3711 img_optype = OPTYPE_BIOS;
3713 case IMAGE_OPTION_ROM_PXE:
3714 img_optype = OPTYPE_PXE_BIOS;
3716 case IMAGE_OPTION_ROM_FCoE:
3717 img_optype = OPTYPE_FCOE_BIOS;
3719 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3720 img_optype = OPTYPE_ISCSI_BACKUP;
3723 img_optype = OPTYPE_NCSI_FW;
3729 if (img_optype == OPTYPE_REDBOOT) {
3730 redboot = be_flash_redboot(adapter, fw->data,
3731 img_offset, img_size,
3732 filehdr_size + img_hdrs_size);
3738 p += filehdr_size + img_offset + img_hdrs_size;
3739 if (p + img_size > fw->data + fw->size)
3742 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3744 dev_err(&adapter->pdev->dev,
3745 "Flashing section type %d failed.\n",
3746 fsec->fsec_entry[i].type);
3753 static int lancer_fw_download(struct be_adapter *adapter,
3754 const struct firmware *fw)
3756 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3757 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3758 struct be_dma_mem flash_cmd;
3759 const u8 *data_ptr = NULL;
3760 u8 *dest_image_ptr = NULL;
3761 size_t image_size = 0;
3763 u32 data_written = 0;
3769 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3770 dev_err(&adapter->pdev->dev,
3771 "FW Image not properly aligned. "
3772 "Length must be 4 byte aligned.\n");
3774 goto lancer_fw_exit;
3777 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3778 + LANCER_FW_DOWNLOAD_CHUNK;
3779 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3780 &flash_cmd.dma, GFP_KERNEL);
3781 if (!flash_cmd.va) {
3783 goto lancer_fw_exit;
3786 dest_image_ptr = flash_cmd.va +
3787 sizeof(struct lancer_cmd_req_write_object);
3788 image_size = fw->size;
3789 data_ptr = fw->data;
3791 while (image_size) {
3792 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3794 /* Copy the image chunk content. */
3795 memcpy(dest_image_ptr, data_ptr, chunk_size);
3797 status = lancer_cmd_write_object(adapter, &flash_cmd,
3799 LANCER_FW_DOWNLOAD_LOCATION,
3800 &data_written, &change_status,
3805 offset += data_written;
3806 data_ptr += data_written;
3807 image_size -= data_written;
3811 /* Commit the FW written */
3812 status = lancer_cmd_write_object(adapter, &flash_cmd,
3814 LANCER_FW_DOWNLOAD_LOCATION,
3815 &data_written, &change_status,
3819 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3822 dev_err(&adapter->pdev->dev,
3823 "Firmware load error. "
3824 "Status code: 0x%x Additional Status: 0x%x\n",
3825 status, add_status);
3826 goto lancer_fw_exit;
3829 if (change_status == LANCER_FW_RESET_NEEDED) {
3830 dev_info(&adapter->pdev->dev,
3831 "Resetting adapter to activate new FW\n");
3832 status = lancer_physdev_ctrl(adapter,
3833 PHYSDEV_CONTROL_FW_RESET_MASK);
3835 dev_err(&adapter->pdev->dev,
3836 "Adapter busy for FW reset.\n"
3837 "New FW will not be active.\n");
3838 goto lancer_fw_exit;
3840 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3841 dev_err(&adapter->pdev->dev,
3842 "System reboot required for new FW"
3846 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3853 #define UFI_TYPE3R 10
3855 static int be_get_ufi_type(struct be_adapter *adapter,
3856 struct flash_file_hdr_g3 *fhdr)
3859 goto be_get_ufi_exit;
3861 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3863 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3864 if (fhdr->asic_type_rev == 0x10)
3868 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3872 dev_err(&adapter->pdev->dev,
3873 "UFI and Interface are not compatible for flashing\n");
3877 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3879 struct flash_file_hdr_g3 *fhdr3;
3880 struct image_hdr *img_hdr_ptr = NULL;
3881 struct be_dma_mem flash_cmd;
3883 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3885 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3886 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3887 &flash_cmd.dma, GFP_KERNEL);
3888 if (!flash_cmd.va) {
3894 fhdr3 = (struct flash_file_hdr_g3 *)p;
3896 ufi_type = be_get_ufi_type(adapter, fhdr3);
3898 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3899 for (i = 0; i < num_imgs; i++) {
3900 img_hdr_ptr = (struct image_hdr *)(fw->data +
3901 (sizeof(struct flash_file_hdr_g3) +
3902 i * sizeof(struct image_hdr)));
3903 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3906 status = be_flash_skyhawk(adapter, fw,
3907 &flash_cmd, num_imgs);
3910 status = be_flash_BEx(adapter, fw, &flash_cmd,
3914 /* Do not flash this ufi on BE3-R cards */
3915 if (adapter->asic_rev < 0x10)
3916 status = be_flash_BEx(adapter, fw,
3921 dev_err(&adapter->pdev->dev,
3922 "Can't load BE3 UFI on BE3R\n");
3928 if (ufi_type == UFI_TYPE2)
3929 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3930 else if (ufi_type == -1)
3933 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3936 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3940 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3946 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3948 const struct firmware *fw;
3951 if (!netif_running(adapter->netdev)) {
3952 dev_err(&adapter->pdev->dev,
3953 "Firmware load not allowed (interface is down)\n");
3957 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3961 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3963 if (lancer_chip(adapter))
3964 status = lancer_fw_download(adapter, fw);
3966 status = be_fw_download(adapter, fw);
3969 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3970 adapter->fw_on_flash);
3973 release_firmware(fw);
3977 static int be_ndo_bridge_setlink(struct net_device *dev,
3978 struct nlmsghdr *nlh)
3980 struct be_adapter *adapter = netdev_priv(dev);
3981 struct nlattr *attr, *br_spec;
3986 if (!sriov_enabled(adapter))
3989 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
3991 nla_for_each_nested(attr, br_spec, rem) {
3992 if (nla_type(attr) != IFLA_BRIDGE_MODE)
3995 mode = nla_get_u16(attr);
3996 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
3999 status = be_cmd_set_hsw_config(adapter, 0, 0,
4001 mode == BRIDGE_MODE_VEPA ?
4002 PORT_FWD_TYPE_VEPA :
4007 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
4008 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4013 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
4014 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4019 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4020 struct net_device *dev,
4023 struct be_adapter *adapter = netdev_priv(dev);
4027 if (!sriov_enabled(adapter))
4030 /* BE and Lancer chips support VEB mode only */
4031 if (BEx_chip(adapter) || lancer_chip(adapter)) {
4032 hsw_mode = PORT_FWD_TYPE_VEB;
4034 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4035 adapter->if_handle, &hsw_mode);
4040 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4041 hsw_mode == PORT_FWD_TYPE_VEPA ?
4042 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4045 static const struct net_device_ops be_netdev_ops = {
4046 .ndo_open = be_open,
4047 .ndo_stop = be_close,
4048 .ndo_start_xmit = be_xmit,
4049 .ndo_set_rx_mode = be_set_rx_mode,
4050 .ndo_set_mac_address = be_mac_addr_set,
4051 .ndo_change_mtu = be_change_mtu,
4052 .ndo_get_stats64 = be_get_stats64,
4053 .ndo_validate_addr = eth_validate_addr,
4054 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
4055 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
4056 .ndo_set_vf_mac = be_set_vf_mac,
4057 .ndo_set_vf_vlan = be_set_vf_vlan,
4058 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
4059 .ndo_get_vf_config = be_get_vf_config,
4060 #ifdef CONFIG_NET_POLL_CONTROLLER
4061 .ndo_poll_controller = be_netpoll,
4063 .ndo_bridge_setlink = be_ndo_bridge_setlink,
4064 .ndo_bridge_getlink = be_ndo_bridge_getlink,
4065 #ifdef CONFIG_NET_RX_BUSY_POLL
4066 .ndo_busy_poll = be_busy_poll
4070 static void be_netdev_init(struct net_device *netdev)
4072 struct be_adapter *adapter = netdev_priv(netdev);
4074 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4075 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4076 NETIF_F_HW_VLAN_CTAG_TX;
4077 if (be_multi_rxq(adapter))
4078 netdev->hw_features |= NETIF_F_RXHASH;
4080 netdev->features |= netdev->hw_features |
4081 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4083 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4084 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4086 netdev->priv_flags |= IFF_UNICAST_FLT;
4088 netdev->flags |= IFF_MULTICAST;
4090 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4092 netdev->netdev_ops = &be_netdev_ops;
4094 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
4097 static void be_unmap_pci_bars(struct be_adapter *adapter)
4100 pci_iounmap(adapter->pdev, adapter->csr);
4102 pci_iounmap(adapter->pdev, adapter->db);
4105 static int db_bar(struct be_adapter *adapter)
4107 if (lancer_chip(adapter) || !be_physfn(adapter))
4113 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4115 if (skyhawk_chip(adapter)) {
4116 adapter->roce_db.size = 4096;
4117 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4119 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4125 static int be_map_pci_bars(struct be_adapter *adapter)
4129 if (BEx_chip(adapter) && be_physfn(adapter)) {
4130 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4131 if (adapter->csr == NULL)
4135 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4140 be_roce_map_pci_bars(adapter);
4144 be_unmap_pci_bars(adapter);
4148 static void be_ctrl_cleanup(struct be_adapter *adapter)
4150 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4152 be_unmap_pci_bars(adapter);
4155 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4158 mem = &adapter->rx_filter;
4160 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4164 static int be_ctrl_init(struct be_adapter *adapter)
4166 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4167 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4168 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4172 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4173 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4174 SLI_INTF_FAMILY_SHIFT;
4175 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4177 status = be_map_pci_bars(adapter);
4181 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4182 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4183 mbox_mem_alloc->size,
4184 &mbox_mem_alloc->dma,
4186 if (!mbox_mem_alloc->va) {
4188 goto unmap_pci_bars;
4190 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4191 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4192 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4193 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4195 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4196 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4197 rx_filter->size, &rx_filter->dma,
4199 if (rx_filter->va == NULL) {
4204 mutex_init(&adapter->mbox_lock);
4205 spin_lock_init(&adapter->mcc_lock);
4206 spin_lock_init(&adapter->mcc_cq_lock);
4208 init_completion(&adapter->et_cmd_compl);
4209 pci_save_state(adapter->pdev);
4213 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4214 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4217 be_unmap_pci_bars(adapter);
4223 static void be_stats_cleanup(struct be_adapter *adapter)
4225 struct be_dma_mem *cmd = &adapter->stats_cmd;
4228 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4232 static int be_stats_init(struct be_adapter *adapter)
4234 struct be_dma_mem *cmd = &adapter->stats_cmd;
4236 if (lancer_chip(adapter))
4237 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4238 else if (BE2_chip(adapter))
4239 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4240 else if (BE3_chip(adapter))
4241 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4243 /* ALL non-BE ASICs */
4244 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4246 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4248 if (cmd->va == NULL)
4253 static void be_remove(struct pci_dev *pdev)
4255 struct be_adapter *adapter = pci_get_drvdata(pdev);
4260 be_roce_dev_remove(adapter);
4261 be_intr_set(adapter, false);
4263 cancel_delayed_work_sync(&adapter->func_recovery_work);
4265 unregister_netdev(adapter->netdev);
4269 /* tell fw we're done with firing cmds */
4270 be_cmd_fw_clean(adapter);
4272 be_stats_cleanup(adapter);
4274 be_ctrl_cleanup(adapter);
4276 pci_disable_pcie_error_reporting(pdev);
4278 pci_release_regions(pdev);
4279 pci_disable_device(pdev);
4281 free_netdev(adapter->netdev);
4284 static int be_get_initial_config(struct be_adapter *adapter)
4288 status = be_cmd_get_cntl_attributes(adapter);
4292 /* Must be a power of 2 or else MODULO will BUG_ON */
4293 adapter->be_get_temp_freq = 64;
4295 if (BEx_chip(adapter)) {
4296 level = be_cmd_get_fw_log_level(adapter);
4297 adapter->msg_enable =
4298 level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4301 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4305 static int lancer_recover_func(struct be_adapter *adapter)
4307 struct device *dev = &adapter->pdev->dev;
4310 status = lancer_test_and_set_rdy_state(adapter);
4314 if (netif_running(adapter->netdev))
4315 be_close(adapter->netdev);
4319 be_clear_all_error(adapter);
4321 status = be_setup(adapter);
4325 if (netif_running(adapter->netdev)) {
4326 status = be_open(adapter->netdev);
4331 dev_err(dev, "Adapter recovery successful\n");
4334 if (status == -EAGAIN)
4335 dev_err(dev, "Waiting for resource provisioning\n");
4337 dev_err(dev, "Adapter recovery failed\n");
4342 static void be_func_recovery_task(struct work_struct *work)
4344 struct be_adapter *adapter =
4345 container_of(work, struct be_adapter, func_recovery_work.work);
4348 be_detect_error(adapter);
4350 if (adapter->hw_error && lancer_chip(adapter)) {
4353 netif_device_detach(adapter->netdev);
4356 status = lancer_recover_func(adapter);
4358 netif_device_attach(adapter->netdev);
4361 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4362 * no need to attempt further recovery.
4364 if (!status || status == -EAGAIN)
4365 schedule_delayed_work(&adapter->func_recovery_work,
4366 msecs_to_jiffies(1000));
4369 static void be_worker(struct work_struct *work)
4371 struct be_adapter *adapter =
4372 container_of(work, struct be_adapter, work.work);
4373 struct be_rx_obj *rxo;
4376 /* when interrupts are not yet enabled, just reap any pending
4377 * mcc completions */
4378 if (!netif_running(adapter->netdev)) {
4380 be_process_mcc(adapter);
4385 if (!adapter->stats_cmd_sent) {
4386 if (lancer_chip(adapter))
4387 lancer_cmd_get_pport_stats(adapter,
4388 &adapter->stats_cmd);
4390 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4393 if (be_physfn(adapter) &&
4394 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4395 be_cmd_get_die_temperature(adapter);
4397 for_all_rx_queues(adapter, rxo, i) {
4398 /* Replenish RX-queues starved due to memory
4399 * allocation failures.
4401 if (rxo->rx_post_starved)
4402 be_post_rx_frags(rxo, GFP_KERNEL);
4405 be_eqd_update(adapter);
4408 adapter->work_counter++;
4409 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4412 /* If any VFs are already enabled don't FLR the PF */
4413 static bool be_reset_required(struct be_adapter *adapter)
4415 return pci_num_vf(adapter->pdev) ? false : true;
4418 static char *mc_name(struct be_adapter *adapter)
4420 if (adapter->function_mode & FLEX10_MODE)
4422 else if (adapter->function_mode & VNIC_MODE)
4424 else if (adapter->function_mode & UMC_ENABLED)
4430 static inline char *func_name(struct be_adapter *adapter)
4432 return be_physfn(adapter) ? "PF" : "VF";
4435 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4438 struct be_adapter *adapter;
4439 struct net_device *netdev;
4442 status = pci_enable_device(pdev);
4446 status = pci_request_regions(pdev, DRV_NAME);
4449 pci_set_master(pdev);
4451 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4452 if (netdev == NULL) {
4456 adapter = netdev_priv(netdev);
4457 adapter->pdev = pdev;
4458 pci_set_drvdata(pdev, adapter);
4459 adapter->netdev = netdev;
4460 SET_NETDEV_DEV(netdev, &pdev->dev);
4462 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
4464 netdev->features |= NETIF_F_HIGHDMA;
4466 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
4468 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4473 if (be_physfn(adapter)) {
4474 status = pci_enable_pcie_error_reporting(pdev);
4476 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4479 status = be_ctrl_init(adapter);
4483 /* sync up with fw's ready state */
4484 if (be_physfn(adapter)) {
4485 status = be_fw_wait_ready(adapter);
4490 if (be_reset_required(adapter)) {
4491 status = be_cmd_reset_function(adapter);
4495 /* Wait for interrupts to quiesce after an FLR */
4499 /* Allow interrupts for other ULPs running on NIC function */
4500 be_intr_set(adapter, true);
4502 /* tell fw we're ready to fire cmds */
4503 status = be_cmd_fw_init(adapter);
4507 status = be_stats_init(adapter);
4511 status = be_get_initial_config(adapter);
4515 INIT_DELAYED_WORK(&adapter->work, be_worker);
4516 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4517 adapter->rx_fc = adapter->tx_fc = true;
4519 status = be_setup(adapter);
4523 be_netdev_init(netdev);
4524 status = register_netdev(netdev);
4528 be_roce_dev_add(adapter);
4530 schedule_delayed_work(&adapter->func_recovery_work,
4531 msecs_to_jiffies(1000));
4533 be_cmd_query_port_name(adapter, &port_name);
4535 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4536 func_name(adapter), mc_name(adapter), port_name);
4543 be_stats_cleanup(adapter);
4545 be_ctrl_cleanup(adapter);
4547 free_netdev(netdev);
4549 pci_release_regions(pdev);
4551 pci_disable_device(pdev);
4553 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4557 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4559 struct be_adapter *adapter = pci_get_drvdata(pdev);
4560 struct net_device *netdev = adapter->netdev;
4562 if (adapter->wol_en)
4563 be_setup_wol(adapter, true);
4565 be_intr_set(adapter, false);
4566 cancel_delayed_work_sync(&adapter->func_recovery_work);
4568 netif_device_detach(netdev);
4569 if (netif_running(netdev)) {
4576 pci_save_state(pdev);
4577 pci_disable_device(pdev);
4578 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4582 static int be_resume(struct pci_dev *pdev)
4585 struct be_adapter *adapter = pci_get_drvdata(pdev);
4586 struct net_device *netdev = adapter->netdev;
4588 netif_device_detach(netdev);
4590 status = pci_enable_device(pdev);
4594 pci_set_power_state(pdev, PCI_D0);
4595 pci_restore_state(pdev);
4597 status = be_fw_wait_ready(adapter);
4601 be_intr_set(adapter, true);
4602 /* tell fw we're ready to fire cmds */
4603 status = be_cmd_fw_init(adapter);
4608 if (netif_running(netdev)) {
4614 schedule_delayed_work(&adapter->func_recovery_work,
4615 msecs_to_jiffies(1000));
4616 netif_device_attach(netdev);
4618 if (adapter->wol_en)
4619 be_setup_wol(adapter, false);
4625 * An FLR will stop BE from DMAing any data.
4627 static void be_shutdown(struct pci_dev *pdev)
4629 struct be_adapter *adapter = pci_get_drvdata(pdev);
4634 cancel_delayed_work_sync(&adapter->work);
4635 cancel_delayed_work_sync(&adapter->func_recovery_work);
4637 netif_device_detach(adapter->netdev);
4639 be_cmd_reset_function(adapter);
4641 pci_disable_device(pdev);
4644 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4645 pci_channel_state_t state)
4647 struct be_adapter *adapter = pci_get_drvdata(pdev);
4648 struct net_device *netdev = adapter->netdev;
4650 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4652 if (!adapter->eeh_error) {
4653 adapter->eeh_error = true;
4655 cancel_delayed_work_sync(&adapter->func_recovery_work);
4658 netif_device_detach(netdev);
4659 if (netif_running(netdev))
4666 if (state == pci_channel_io_perm_failure)
4667 return PCI_ERS_RESULT_DISCONNECT;
4669 pci_disable_device(pdev);
4671 /* The error could cause the FW to trigger a flash debug dump.
4672 * Resetting the card while flash dump is in progress
4673 * can cause it not to recover; wait for it to finish.
4674 * Wait only for first function as it is needed only once per
4677 if (pdev->devfn == 0)
4680 return PCI_ERS_RESULT_NEED_RESET;
4683 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4685 struct be_adapter *adapter = pci_get_drvdata(pdev);
4688 dev_info(&adapter->pdev->dev, "EEH reset\n");
4690 status = pci_enable_device(pdev);
4692 return PCI_ERS_RESULT_DISCONNECT;
4694 pci_set_master(pdev);
4695 pci_set_power_state(pdev, PCI_D0);
4696 pci_restore_state(pdev);
4698 /* Check if card is ok and fw is ready */
4699 dev_info(&adapter->pdev->dev,
4700 "Waiting for FW to be ready after EEH reset\n");
4701 status = be_fw_wait_ready(adapter);
4703 return PCI_ERS_RESULT_DISCONNECT;
4705 pci_cleanup_aer_uncorrect_error_status(pdev);
4706 be_clear_all_error(adapter);
4707 return PCI_ERS_RESULT_RECOVERED;
4710 static void be_eeh_resume(struct pci_dev *pdev)
4713 struct be_adapter *adapter = pci_get_drvdata(pdev);
4714 struct net_device *netdev = adapter->netdev;
4716 dev_info(&adapter->pdev->dev, "EEH resume\n");
4718 pci_save_state(pdev);
4720 status = be_cmd_reset_function(adapter);
4724 /* tell fw we're ready to fire cmds */
4725 status = be_cmd_fw_init(adapter);
4729 status = be_setup(adapter);
4733 if (netif_running(netdev)) {
4734 status = be_open(netdev);
4739 schedule_delayed_work(&adapter->func_recovery_work,
4740 msecs_to_jiffies(1000));
4741 netif_device_attach(netdev);
4744 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4747 static const struct pci_error_handlers be_eeh_handlers = {
4748 .error_detected = be_eeh_err_detected,
4749 .slot_reset = be_eeh_reset,
4750 .resume = be_eeh_resume,
4753 static struct pci_driver be_driver = {
4755 .id_table = be_dev_ids,
4757 .remove = be_remove,
4758 .suspend = be_suspend,
4759 .resume = be_resume,
4760 .shutdown = be_shutdown,
4761 .err_handler = &be_eeh_handlers
4764 static int __init be_init_module(void)
4766 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4767 rx_frag_size != 2048) {
4768 printk(KERN_WARNING DRV_NAME
4769 " : Module param rx_frag_size must be 2048/4096/8192."
4771 rx_frag_size = 2048;
4774 return pci_register_driver(&be_driver);
4776 module_init(be_init_module);
4778 static void __exit be_exit_module(void)
4780 pci_unregister_driver(&be_driver);
4782 module_exit(be_exit_module);