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_lancer_xmit_workarounds(struct be_adapter *adapter,
920 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
921 unsigned int eth_hdr_len;
924 /* For padded packets, BE HW modifies tot_len field in IP header
925 * incorrecly when VLAN tag is inserted by HW.
926 * For padded packets, Lancer computes incorrect checksum.
928 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
929 VLAN_ETH_HLEN : ETH_HLEN;
930 if (skb->len <= 60 &&
931 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
933 ip = (struct iphdr *)ip_hdr(skb);
934 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
937 /* If vlan tag is already inlined in the packet, skip HW VLAN
938 * tagging in UMC mode
940 if ((adapter->function_mode & UMC_ENABLED) &&
941 veh->h_vlan_proto == htons(ETH_P_8021Q))
942 *skip_hw_vlan = true;
944 /* HW has a bug wherein it will calculate CSUM for VLAN
945 * pkts even though it is disabled.
946 * Manually insert VLAN in pkt.
948 if (skb->ip_summed != CHECKSUM_PARTIAL &&
949 vlan_tx_tag_present(skb)) {
950 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
955 /* HW may lockup when VLAN HW tagging is requested on
956 * certain ipv6 packets. Drop such pkts if the HW workaround to
957 * skip HW tagging is not enabled by FW.
959 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
960 (adapter->pvid || adapter->qnq_vid) &&
961 !qnq_async_evt_rcvd(adapter)))
964 /* Manual VLAN tag insertion to prevent:
965 * ASIC lockup when the ASIC inserts VLAN tag into
966 * certain ipv6 packets. Insert VLAN tags in driver,
967 * and set event, completion, vlan bits accordingly
970 if (be_ipv6_tx_stall_chk(adapter, skb) &&
971 be_vlan_tag_tx_chk(adapter, skb)) {
972 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
979 dev_kfree_skb_any(skb);
984 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
988 /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or
989 * less may cause a transmit stall on that port. So the work-around is
990 * to pad short packets (<= 32 bytes) to a 36-byte length.
992 if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
993 if (skb_padto(skb, 36))
998 if (BEx_chip(adapter) || lancer_chip(adapter)) {
999 skb = be_lancer_xmit_workarounds(adapter, skb, skip_hw_vlan);
1007 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
1009 struct be_adapter *adapter = netdev_priv(netdev);
1010 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
1011 struct be_queue_info *txq = &txo->q;
1012 bool dummy_wrb, stopped = false;
1013 u32 wrb_cnt = 0, copied = 0;
1014 bool skip_hw_vlan = false;
1015 u32 start = txq->head;
1017 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
1019 tx_stats(txo)->tx_drv_drops++;
1020 return NETDEV_TX_OK;
1023 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
1025 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
1028 int gso_segs = skb_shinfo(skb)->gso_segs;
1030 /* record the sent skb in the sent_skb table */
1031 BUG_ON(txo->sent_skb_list[start]);
1032 txo->sent_skb_list[start] = skb;
1034 /* Ensure txq has space for the next skb; Else stop the queue
1035 * *BEFORE* ringing the tx doorbell, so that we serialze the
1036 * tx compls of the current transmit which'll wake up the queue
1038 atomic_add(wrb_cnt, &txq->used);
1039 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
1041 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
1045 be_txq_notify(adapter, txo, wrb_cnt);
1047 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
1050 tx_stats(txo)->tx_drv_drops++;
1051 dev_kfree_skb_any(skb);
1053 return NETDEV_TX_OK;
1056 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1058 struct be_adapter *adapter = netdev_priv(netdev);
1059 if (new_mtu < BE_MIN_MTU ||
1060 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
1061 (ETH_HLEN + ETH_FCS_LEN))) {
1062 dev_info(&adapter->pdev->dev,
1063 "MTU must be between %d and %d bytes\n",
1065 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
1068 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
1069 netdev->mtu, new_mtu);
1070 netdev->mtu = new_mtu;
1075 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1076 * If the user configures more, place BE in vlan promiscuous mode.
1078 static int be_vid_config(struct be_adapter *adapter)
1080 u16 vids[BE_NUM_VLANS_SUPPORTED];
1084 /* No need to further configure vids if in promiscuous mode */
1085 if (adapter->promiscuous)
1088 if (adapter->vlans_added > be_max_vlans(adapter))
1089 goto set_vlan_promisc;
1091 /* Construct VLAN Table to give to HW */
1092 for (i = 0; i < VLAN_N_VID; i++)
1093 if (adapter->vlan_tag[i])
1094 vids[num++] = cpu_to_le16(i);
1096 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1100 /* Set to VLAN promisc mode as setting VLAN filter failed */
1101 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
1102 goto set_vlan_promisc;
1103 dev_err(&adapter->pdev->dev,
1104 "Setting HW VLAN filtering failed.\n");
1106 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1107 /* hw VLAN filtering re-enabled. */
1108 status = be_cmd_rx_filter(adapter,
1109 BE_FLAGS_VLAN_PROMISC, OFF);
1111 dev_info(&adapter->pdev->dev,
1112 "Disabling VLAN Promiscuous mode.\n");
1113 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1121 if (adapter->flags & BE_FLAGS_VLAN_PROMISC)
1124 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1126 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1127 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1129 dev_err(&adapter->pdev->dev,
1130 "Failed to enable VLAN Promiscuous mode.\n");
1134 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1136 struct be_adapter *adapter = netdev_priv(netdev);
1139 /* Packets with VID 0 are always received by Lancer by default */
1140 if (lancer_chip(adapter) && vid == 0)
1143 adapter->vlan_tag[vid] = 1;
1144 adapter->vlans_added++;
1146 status = be_vid_config(adapter);
1148 adapter->vlans_added--;
1149 adapter->vlan_tag[vid] = 0;
1155 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1157 struct be_adapter *adapter = netdev_priv(netdev);
1160 /* Packets with VID 0 are always received by Lancer by default */
1161 if (lancer_chip(adapter) && vid == 0)
1164 adapter->vlan_tag[vid] = 0;
1165 status = be_vid_config(adapter);
1167 adapter->vlans_added--;
1169 adapter->vlan_tag[vid] = 1;
1174 static void be_clear_promisc(struct be_adapter *adapter)
1176 adapter->promiscuous = false;
1177 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1179 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1182 static void be_set_rx_mode(struct net_device *netdev)
1184 struct be_adapter *adapter = netdev_priv(netdev);
1187 if (netdev->flags & IFF_PROMISC) {
1188 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1189 adapter->promiscuous = true;
1193 /* BE was previously in promiscuous mode; disable it */
1194 if (adapter->promiscuous) {
1195 be_clear_promisc(adapter);
1196 if (adapter->vlans_added)
1197 be_vid_config(adapter);
1200 /* Enable multicast promisc if num configured exceeds what we support */
1201 if (netdev->flags & IFF_ALLMULTI ||
1202 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1203 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1207 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1208 struct netdev_hw_addr *ha;
1209 int i = 1; /* First slot is claimed by the Primary MAC */
1211 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1212 be_cmd_pmac_del(adapter, adapter->if_handle,
1213 adapter->pmac_id[i], 0);
1216 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1217 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1218 adapter->promiscuous = true;
1222 netdev_for_each_uc_addr(ha, adapter->netdev) {
1223 adapter->uc_macs++; /* First slot is for Primary MAC */
1224 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1226 &adapter->pmac_id[adapter->uc_macs], 0);
1230 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1232 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1234 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1235 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1236 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1242 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1244 struct be_adapter *adapter = netdev_priv(netdev);
1245 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1248 if (!sriov_enabled(adapter))
1251 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1254 if (BEx_chip(adapter)) {
1255 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1258 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1259 &vf_cfg->pmac_id, vf + 1);
1261 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1266 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1269 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1274 static int be_get_vf_config(struct net_device *netdev, int vf,
1275 struct ifla_vf_info *vi)
1277 struct be_adapter *adapter = netdev_priv(netdev);
1278 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1280 if (!sriov_enabled(adapter))
1283 if (vf >= adapter->num_vfs)
1287 vi->tx_rate = vf_cfg->tx_rate;
1288 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1289 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1290 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1295 static int be_set_vf_vlan(struct net_device *netdev,
1296 int vf, u16 vlan, u8 qos)
1298 struct be_adapter *adapter = netdev_priv(netdev);
1299 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1302 if (!sriov_enabled(adapter))
1305 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1309 vlan |= qos << VLAN_PRIO_SHIFT;
1310 if (vf_cfg->vlan_tag != vlan)
1311 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1312 vf_cfg->if_handle, 0);
1314 /* Reset Transparent Vlan Tagging. */
1315 status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID,
1316 vf + 1, vf_cfg->if_handle, 0);
1320 vf_cfg->vlan_tag = vlan;
1322 dev_info(&adapter->pdev->dev,
1323 "VLAN %d config on VF %d failed\n", vlan, vf);
1327 static int be_set_vf_tx_rate(struct net_device *netdev,
1330 struct be_adapter *adapter = netdev_priv(netdev);
1333 if (!sriov_enabled(adapter))
1336 if (vf >= adapter->num_vfs)
1339 if (rate < 100 || rate > 10000) {
1340 dev_err(&adapter->pdev->dev,
1341 "tx rate must be between 100 and 10000 Mbps\n");
1345 if (lancer_chip(adapter))
1346 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1348 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1351 dev_err(&adapter->pdev->dev,
1352 "tx rate %d on VF %d failed\n", rate, vf);
1354 adapter->vf_cfg[vf].tx_rate = rate;
1358 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1361 aic->rx_pkts_prev = rx_pkts;
1362 aic->tx_reqs_prev = tx_pkts;
1366 static void be_eqd_update(struct be_adapter *adapter)
1368 struct be_set_eqd set_eqd[MAX_EVT_QS];
1369 int eqd, i, num = 0, start;
1370 struct be_aic_obj *aic;
1371 struct be_eq_obj *eqo;
1372 struct be_rx_obj *rxo;
1373 struct be_tx_obj *txo;
1374 u64 rx_pkts, tx_pkts;
1378 for_all_evt_queues(adapter, eqo, i) {
1379 aic = &adapter->aic_obj[eqo->idx];
1387 rxo = &adapter->rx_obj[eqo->idx];
1389 start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
1390 rx_pkts = rxo->stats.rx_pkts;
1391 } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
1393 txo = &adapter->tx_obj[eqo->idx];
1395 start = u64_stats_fetch_begin_bh(&txo->stats.sync);
1396 tx_pkts = txo->stats.tx_reqs;
1397 } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
1400 /* Skip, if wrapped around or first calculation */
1402 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1403 rx_pkts < aic->rx_pkts_prev ||
1404 tx_pkts < aic->tx_reqs_prev) {
1405 be_aic_update(aic, rx_pkts, tx_pkts, now);
1409 delta = jiffies_to_msecs(now - aic->jiffies);
1410 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1411 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1412 eqd = (pps / 15000) << 2;
1416 eqd = min_t(u32, eqd, aic->max_eqd);
1417 eqd = max_t(u32, eqd, aic->min_eqd);
1419 be_aic_update(aic, rx_pkts, tx_pkts, now);
1421 if (eqd != aic->prev_eqd) {
1422 set_eqd[num].delay_multiplier = (eqd * 65)/100;
1423 set_eqd[num].eq_id = eqo->q.id;
1424 aic->prev_eqd = eqd;
1430 be_cmd_modify_eqd(adapter, set_eqd, num);
1433 static void be_rx_stats_update(struct be_rx_obj *rxo,
1434 struct be_rx_compl_info *rxcp)
1436 struct be_rx_stats *stats = rx_stats(rxo);
1438 u64_stats_update_begin(&stats->sync);
1440 stats->rx_bytes += rxcp->pkt_size;
1442 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1443 stats->rx_mcast_pkts++;
1445 stats->rx_compl_err++;
1446 u64_stats_update_end(&stats->sync);
1449 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1451 /* L4 checksum is not reliable for non TCP/UDP packets.
1452 * Also ignore ipcksm for ipv6 pkts */
1453 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1454 (rxcp->ip_csum || rxcp->ipv6);
1457 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
1459 struct be_adapter *adapter = rxo->adapter;
1460 struct be_rx_page_info *rx_page_info;
1461 struct be_queue_info *rxq = &rxo->q;
1462 u16 frag_idx = rxq->tail;
1464 rx_page_info = &rxo->page_info_tbl[frag_idx];
1465 BUG_ON(!rx_page_info->page);
1467 if (rx_page_info->last_page_user) {
1468 dma_unmap_page(&adapter->pdev->dev,
1469 dma_unmap_addr(rx_page_info, bus),
1470 adapter->big_page_size, DMA_FROM_DEVICE);
1471 rx_page_info->last_page_user = false;
1474 queue_tail_inc(rxq);
1475 atomic_dec(&rxq->used);
1476 return rx_page_info;
1479 /* Throwaway the data in the Rx completion */
1480 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1481 struct be_rx_compl_info *rxcp)
1483 struct be_rx_page_info *page_info;
1484 u16 i, num_rcvd = rxcp->num_rcvd;
1486 for (i = 0; i < num_rcvd; i++) {
1487 page_info = get_rx_page_info(rxo);
1488 put_page(page_info->page);
1489 memset(page_info, 0, sizeof(*page_info));
1494 * skb_fill_rx_data forms a complete skb for an ether frame
1495 * indicated by rxcp.
1497 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1498 struct be_rx_compl_info *rxcp)
1500 struct be_rx_page_info *page_info;
1502 u16 hdr_len, curr_frag_len, remaining;
1505 page_info = get_rx_page_info(rxo);
1506 start = page_address(page_info->page) + page_info->page_offset;
1509 /* Copy data in the first descriptor of this completion */
1510 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1512 skb->len = curr_frag_len;
1513 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1514 memcpy(skb->data, start, curr_frag_len);
1515 /* Complete packet has now been moved to data */
1516 put_page(page_info->page);
1518 skb->tail += curr_frag_len;
1521 memcpy(skb->data, start, hdr_len);
1522 skb_shinfo(skb)->nr_frags = 1;
1523 skb_frag_set_page(skb, 0, page_info->page);
1524 skb_shinfo(skb)->frags[0].page_offset =
1525 page_info->page_offset + hdr_len;
1526 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1527 skb->data_len = curr_frag_len - hdr_len;
1528 skb->truesize += rx_frag_size;
1529 skb->tail += hdr_len;
1531 page_info->page = NULL;
1533 if (rxcp->pkt_size <= rx_frag_size) {
1534 BUG_ON(rxcp->num_rcvd != 1);
1538 /* More frags present for this completion */
1539 remaining = rxcp->pkt_size - curr_frag_len;
1540 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1541 page_info = get_rx_page_info(rxo);
1542 curr_frag_len = min(remaining, rx_frag_size);
1544 /* Coalesce all frags from the same physical page in one slot */
1545 if (page_info->page_offset == 0) {
1548 skb_frag_set_page(skb, j, page_info->page);
1549 skb_shinfo(skb)->frags[j].page_offset =
1550 page_info->page_offset;
1551 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1552 skb_shinfo(skb)->nr_frags++;
1554 put_page(page_info->page);
1557 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1558 skb->len += curr_frag_len;
1559 skb->data_len += curr_frag_len;
1560 skb->truesize += rx_frag_size;
1561 remaining -= curr_frag_len;
1562 page_info->page = NULL;
1564 BUG_ON(j > MAX_SKB_FRAGS);
1567 /* Process the RX completion indicated by rxcp when GRO is disabled */
1568 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1569 struct be_rx_compl_info *rxcp)
1571 struct be_adapter *adapter = rxo->adapter;
1572 struct net_device *netdev = adapter->netdev;
1573 struct sk_buff *skb;
1575 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1576 if (unlikely(!skb)) {
1577 rx_stats(rxo)->rx_drops_no_skbs++;
1578 be_rx_compl_discard(rxo, rxcp);
1582 skb_fill_rx_data(rxo, skb, rxcp);
1584 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1585 skb->ip_summed = CHECKSUM_UNNECESSARY;
1587 skb_checksum_none_assert(skb);
1589 skb->protocol = eth_type_trans(skb, netdev);
1590 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1591 if (netdev->features & NETIF_F_RXHASH)
1592 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1593 skb_mark_napi_id(skb, napi);
1596 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1598 netif_receive_skb(skb);
1601 /* Process the RX completion indicated by rxcp when GRO is enabled */
1602 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1603 struct napi_struct *napi,
1604 struct be_rx_compl_info *rxcp)
1606 struct be_adapter *adapter = rxo->adapter;
1607 struct be_rx_page_info *page_info;
1608 struct sk_buff *skb = NULL;
1609 u16 remaining, curr_frag_len;
1612 skb = napi_get_frags(napi);
1614 be_rx_compl_discard(rxo, rxcp);
1618 remaining = rxcp->pkt_size;
1619 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1620 page_info = get_rx_page_info(rxo);
1622 curr_frag_len = min(remaining, rx_frag_size);
1624 /* Coalesce all frags from the same physical page in one slot */
1625 if (i == 0 || page_info->page_offset == 0) {
1626 /* First frag or Fresh page */
1628 skb_frag_set_page(skb, j, page_info->page);
1629 skb_shinfo(skb)->frags[j].page_offset =
1630 page_info->page_offset;
1631 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1633 put_page(page_info->page);
1635 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1636 skb->truesize += rx_frag_size;
1637 remaining -= curr_frag_len;
1638 memset(page_info, 0, sizeof(*page_info));
1640 BUG_ON(j > MAX_SKB_FRAGS);
1642 skb_shinfo(skb)->nr_frags = j + 1;
1643 skb->len = rxcp->pkt_size;
1644 skb->data_len = rxcp->pkt_size;
1645 skb->ip_summed = CHECKSUM_UNNECESSARY;
1646 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1647 if (adapter->netdev->features & NETIF_F_RXHASH)
1648 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1649 skb_mark_napi_id(skb, napi);
1652 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1654 napi_gro_frags(napi);
1657 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1658 struct be_rx_compl_info *rxcp)
1661 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1662 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1663 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1664 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1665 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1667 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1669 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1671 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1673 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1675 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1677 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1679 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1681 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1684 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1687 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1688 struct be_rx_compl_info *rxcp)
1691 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1692 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1693 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1694 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1695 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1697 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1699 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1701 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1703 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1705 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1707 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1709 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1711 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1714 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1715 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1719 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1721 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1722 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1723 struct be_adapter *adapter = rxo->adapter;
1725 /* For checking the valid bit it is Ok to use either definition as the
1726 * valid bit is at the same position in both v0 and v1 Rx compl */
1727 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1731 be_dws_le_to_cpu(compl, sizeof(*compl));
1733 if (adapter->be3_native)
1734 be_parse_rx_compl_v1(compl, rxcp);
1736 be_parse_rx_compl_v0(compl, rxcp);
1742 /* vlanf could be wrongly set in some cards.
1743 * ignore if vtm is not set */
1744 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1747 if (!lancer_chip(adapter))
1748 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1750 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1751 !adapter->vlan_tag[rxcp->vlan_tag])
1755 /* As the compl has been parsed, reset it; we wont touch it again */
1756 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1758 queue_tail_inc(&rxo->cq);
1762 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1764 u32 order = get_order(size);
1768 return alloc_pages(gfp, order);
1772 * Allocate a page, split it to fragments of size rx_frag_size and post as
1773 * receive buffers to BE
1775 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1777 struct be_adapter *adapter = rxo->adapter;
1778 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1779 struct be_queue_info *rxq = &rxo->q;
1780 struct page *pagep = NULL;
1781 struct device *dev = &adapter->pdev->dev;
1782 struct be_eth_rx_d *rxd;
1783 u64 page_dmaaddr = 0, frag_dmaaddr;
1784 u32 posted, page_offset = 0;
1786 page_info = &rxo->page_info_tbl[rxq->head];
1787 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1789 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1790 if (unlikely(!pagep)) {
1791 rx_stats(rxo)->rx_post_fail++;
1794 page_dmaaddr = dma_map_page(dev, pagep, 0,
1795 adapter->big_page_size,
1797 if (dma_mapping_error(dev, page_dmaaddr)) {
1800 rx_stats(rxo)->rx_post_fail++;
1803 page_info->page_offset = 0;
1806 page_info->page_offset = page_offset + rx_frag_size;
1808 page_offset = page_info->page_offset;
1809 page_info->page = pagep;
1810 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1811 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1813 rxd = queue_head_node(rxq);
1814 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1815 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1817 /* Any space left in the current big page for another frag? */
1818 if ((page_offset + rx_frag_size + rx_frag_size) >
1819 adapter->big_page_size) {
1821 page_info->last_page_user = true;
1824 prev_page_info = page_info;
1825 queue_head_inc(rxq);
1826 page_info = &rxo->page_info_tbl[rxq->head];
1829 prev_page_info->last_page_user = true;
1832 atomic_add(posted, &rxq->used);
1833 if (rxo->rx_post_starved)
1834 rxo->rx_post_starved = false;
1835 be_rxq_notify(adapter, rxq->id, posted);
1836 } else if (atomic_read(&rxq->used) == 0) {
1837 /* Let be_worker replenish when memory is available */
1838 rxo->rx_post_starved = true;
1842 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1844 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1846 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1850 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1852 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1854 queue_tail_inc(tx_cq);
1858 static u16 be_tx_compl_process(struct be_adapter *adapter,
1859 struct be_tx_obj *txo, u16 last_index)
1861 struct be_queue_info *txq = &txo->q;
1862 struct be_eth_wrb *wrb;
1863 struct sk_buff **sent_skbs = txo->sent_skb_list;
1864 struct sk_buff *sent_skb;
1865 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1866 bool unmap_skb_hdr = true;
1868 sent_skb = sent_skbs[txq->tail];
1870 sent_skbs[txq->tail] = NULL;
1872 /* skip header wrb */
1873 queue_tail_inc(txq);
1876 cur_index = txq->tail;
1877 wrb = queue_tail_node(txq);
1878 unmap_tx_frag(&adapter->pdev->dev, wrb,
1879 (unmap_skb_hdr && skb_headlen(sent_skb)));
1880 unmap_skb_hdr = false;
1883 queue_tail_inc(txq);
1884 } while (cur_index != last_index);
1886 kfree_skb(sent_skb);
1890 /* Return the number of events in the event queue */
1891 static inline int events_get(struct be_eq_obj *eqo)
1893 struct be_eq_entry *eqe;
1897 eqe = queue_tail_node(&eqo->q);
1904 queue_tail_inc(&eqo->q);
1910 /* Leaves the EQ is disarmed state */
1911 static void be_eq_clean(struct be_eq_obj *eqo)
1913 int num = events_get(eqo);
1915 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1918 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1920 struct be_rx_page_info *page_info;
1921 struct be_queue_info *rxq = &rxo->q;
1922 struct be_queue_info *rx_cq = &rxo->cq;
1923 struct be_rx_compl_info *rxcp;
1924 struct be_adapter *adapter = rxo->adapter;
1927 /* Consume pending rx completions.
1928 * Wait for the flush completion (identified by zero num_rcvd)
1929 * to arrive. Notify CQ even when there are no more CQ entries
1930 * for HW to flush partially coalesced CQ entries.
1931 * In Lancer, there is no need to wait for flush compl.
1934 rxcp = be_rx_compl_get(rxo);
1936 if (lancer_chip(adapter))
1939 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1940 dev_warn(&adapter->pdev->dev,
1941 "did not receive flush compl\n");
1944 be_cq_notify(adapter, rx_cq->id, true, 0);
1947 be_rx_compl_discard(rxo, rxcp);
1948 be_cq_notify(adapter, rx_cq->id, false, 1);
1949 if (rxcp->num_rcvd == 0)
1954 /* After cleanup, leave the CQ in unarmed state */
1955 be_cq_notify(adapter, rx_cq->id, false, 0);
1957 /* Then free posted rx buffers that were not used */
1958 while (atomic_read(&rxq->used) > 0) {
1959 page_info = get_rx_page_info(rxo);
1960 put_page(page_info->page);
1961 memset(page_info, 0, sizeof(*page_info));
1963 BUG_ON(atomic_read(&rxq->used));
1964 rxq->tail = rxq->head = 0;
1967 static void be_tx_compl_clean(struct be_adapter *adapter)
1969 struct be_tx_obj *txo;
1970 struct be_queue_info *txq;
1971 struct be_eth_tx_compl *txcp;
1972 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1973 struct sk_buff *sent_skb;
1975 int i, pending_txqs;
1977 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1979 pending_txqs = adapter->num_tx_qs;
1981 for_all_tx_queues(adapter, txo, i) {
1983 while ((txcp = be_tx_compl_get(&txo->cq))) {
1985 AMAP_GET_BITS(struct amap_eth_tx_compl,
1987 num_wrbs += be_tx_compl_process(adapter, txo,
1992 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1993 atomic_sub(num_wrbs, &txq->used);
1997 if (atomic_read(&txq->used) == 0)
2001 if (pending_txqs == 0 || ++timeo > 200)
2007 for_all_tx_queues(adapter, txo, i) {
2009 if (atomic_read(&txq->used))
2010 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
2011 atomic_read(&txq->used));
2013 /* free posted tx for which compls will never arrive */
2014 while (atomic_read(&txq->used)) {
2015 sent_skb = txo->sent_skb_list[txq->tail];
2016 end_idx = txq->tail;
2017 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2019 index_adv(&end_idx, num_wrbs - 1, txq->len);
2020 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2021 atomic_sub(num_wrbs, &txq->used);
2026 static void be_evt_queues_destroy(struct be_adapter *adapter)
2028 struct be_eq_obj *eqo;
2031 for_all_evt_queues(adapter, eqo, i) {
2032 if (eqo->q.created) {
2034 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2035 napi_hash_del(&eqo->napi);
2036 netif_napi_del(&eqo->napi);
2038 be_queue_free(adapter, &eqo->q);
2042 static int be_evt_queues_create(struct be_adapter *adapter)
2044 struct be_queue_info *eq;
2045 struct be_eq_obj *eqo;
2046 struct be_aic_obj *aic;
2049 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2050 adapter->cfg_num_qs);
2052 for_all_evt_queues(adapter, eqo, i) {
2053 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2055 napi_hash_add(&eqo->napi);
2056 aic = &adapter->aic_obj[i];
2057 eqo->adapter = adapter;
2058 eqo->tx_budget = BE_TX_BUDGET;
2060 aic->max_eqd = BE_MAX_EQD;
2064 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2065 sizeof(struct be_eq_entry));
2069 rc = be_cmd_eq_create(adapter, eqo);
2076 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2078 struct be_queue_info *q;
2080 q = &adapter->mcc_obj.q;
2082 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2083 be_queue_free(adapter, q);
2085 q = &adapter->mcc_obj.cq;
2087 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2088 be_queue_free(adapter, q);
2091 /* Must be called only after TX qs are created as MCC shares TX EQ */
2092 static int be_mcc_queues_create(struct be_adapter *adapter)
2094 struct be_queue_info *q, *cq;
2096 cq = &adapter->mcc_obj.cq;
2097 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2098 sizeof(struct be_mcc_compl)))
2101 /* Use the default EQ for MCC completions */
2102 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2105 q = &adapter->mcc_obj.q;
2106 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2107 goto mcc_cq_destroy;
2109 if (be_cmd_mccq_create(adapter, q, cq))
2115 be_queue_free(adapter, q);
2117 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2119 be_queue_free(adapter, cq);
2124 static void be_tx_queues_destroy(struct be_adapter *adapter)
2126 struct be_queue_info *q;
2127 struct be_tx_obj *txo;
2130 for_all_tx_queues(adapter, txo, i) {
2133 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2134 be_queue_free(adapter, q);
2138 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2139 be_queue_free(adapter, q);
2143 static int be_tx_qs_create(struct be_adapter *adapter)
2145 struct be_queue_info *cq, *eq;
2146 struct be_tx_obj *txo;
2149 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2151 for_all_tx_queues(adapter, txo, i) {
2153 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2154 sizeof(struct be_eth_tx_compl));
2158 u64_stats_init(&txo->stats.sync);
2159 u64_stats_init(&txo->stats.sync_compl);
2161 /* If num_evt_qs is less than num_tx_qs, then more than
2162 * one txq share an eq
2164 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2165 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2169 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2170 sizeof(struct be_eth_wrb));
2174 status = be_cmd_txq_create(adapter, txo);
2179 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2180 adapter->num_tx_qs);
2184 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2186 struct be_queue_info *q;
2187 struct be_rx_obj *rxo;
2190 for_all_rx_queues(adapter, rxo, i) {
2193 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2194 be_queue_free(adapter, q);
2198 static int be_rx_cqs_create(struct be_adapter *adapter)
2200 struct be_queue_info *eq, *cq;
2201 struct be_rx_obj *rxo;
2204 /* We can create as many RSS rings as there are EQs. */
2205 adapter->num_rx_qs = adapter->num_evt_qs;
2207 /* We'll use RSS only if atleast 2 RSS rings are supported.
2208 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2210 if (adapter->num_rx_qs > 1)
2211 adapter->num_rx_qs++;
2213 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2214 for_all_rx_queues(adapter, rxo, i) {
2215 rxo->adapter = adapter;
2217 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2218 sizeof(struct be_eth_rx_compl));
2222 u64_stats_init(&rxo->stats.sync);
2223 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2224 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2229 dev_info(&adapter->pdev->dev,
2230 "created %d RSS queue(s) and 1 default RX queue\n",
2231 adapter->num_rx_qs - 1);
2235 static irqreturn_t be_intx(int irq, void *dev)
2237 struct be_eq_obj *eqo = dev;
2238 struct be_adapter *adapter = eqo->adapter;
2241 /* IRQ is not expected when NAPI is scheduled as the EQ
2242 * will not be armed.
2243 * But, this can happen on Lancer INTx where it takes
2244 * a while to de-assert INTx or in BE2 where occasionaly
2245 * an interrupt may be raised even when EQ is unarmed.
2246 * If NAPI is already scheduled, then counting & notifying
2247 * events will orphan them.
2249 if (napi_schedule_prep(&eqo->napi)) {
2250 num_evts = events_get(eqo);
2251 __napi_schedule(&eqo->napi);
2253 eqo->spurious_intr = 0;
2255 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2257 /* Return IRQ_HANDLED only for the the first spurious intr
2258 * after a valid intr to stop the kernel from branding
2259 * this irq as a bad one!
2261 if (num_evts || eqo->spurious_intr++ == 0)
2267 static irqreturn_t be_msix(int irq, void *dev)
2269 struct be_eq_obj *eqo = dev;
2271 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2272 napi_schedule(&eqo->napi);
2276 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2278 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2281 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2282 int budget, int polling)
2284 struct be_adapter *adapter = rxo->adapter;
2285 struct be_queue_info *rx_cq = &rxo->cq;
2286 struct be_rx_compl_info *rxcp;
2289 for (work_done = 0; work_done < budget; work_done++) {
2290 rxcp = be_rx_compl_get(rxo);
2294 /* Is it a flush compl that has no data */
2295 if (unlikely(rxcp->num_rcvd == 0))
2298 /* Discard compl with partial DMA Lancer B0 */
2299 if (unlikely(!rxcp->pkt_size)) {
2300 be_rx_compl_discard(rxo, rxcp);
2304 /* On BE drop pkts that arrive due to imperfect filtering in
2305 * promiscuous mode on some skews
2307 if (unlikely(rxcp->port != adapter->port_num &&
2308 !lancer_chip(adapter))) {
2309 be_rx_compl_discard(rxo, rxcp);
2313 /* Don't do gro when we're busy_polling */
2314 if (do_gro(rxcp) && polling != BUSY_POLLING)
2315 be_rx_compl_process_gro(rxo, napi, rxcp);
2317 be_rx_compl_process(rxo, napi, rxcp);
2320 be_rx_stats_update(rxo, rxcp);
2324 be_cq_notify(adapter, rx_cq->id, true, work_done);
2326 /* When an rx-obj gets into post_starved state, just
2327 * let be_worker do the posting.
2329 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2330 !rxo->rx_post_starved)
2331 be_post_rx_frags(rxo, GFP_ATOMIC);
2337 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2338 int budget, int idx)
2340 struct be_eth_tx_compl *txcp;
2341 int num_wrbs = 0, work_done;
2343 for (work_done = 0; work_done < budget; work_done++) {
2344 txcp = be_tx_compl_get(&txo->cq);
2347 num_wrbs += be_tx_compl_process(adapter, txo,
2348 AMAP_GET_BITS(struct amap_eth_tx_compl,
2353 be_cq_notify(adapter, txo->cq.id, true, work_done);
2354 atomic_sub(num_wrbs, &txo->q.used);
2356 /* As Tx wrbs have been freed up, wake up netdev queue
2357 * if it was stopped due to lack of tx wrbs. */
2358 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2359 atomic_read(&txo->q.used) < txo->q.len / 2) {
2360 netif_wake_subqueue(adapter->netdev, idx);
2363 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2364 tx_stats(txo)->tx_compl += work_done;
2365 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2367 return (work_done < budget); /* Done */
2370 int be_poll(struct napi_struct *napi, int budget)
2372 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2373 struct be_adapter *adapter = eqo->adapter;
2374 int max_work = 0, work, i, num_evts;
2375 struct be_rx_obj *rxo;
2378 num_evts = events_get(eqo);
2380 /* Process all TXQs serviced by this EQ */
2381 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2382 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2388 if (be_lock_napi(eqo)) {
2389 /* This loop will iterate twice for EQ0 in which
2390 * completions of the last RXQ (default one) are also processed
2391 * For other EQs the loop iterates only once
2393 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2394 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2395 max_work = max(work, max_work);
2397 be_unlock_napi(eqo);
2402 if (is_mcc_eqo(eqo))
2403 be_process_mcc(adapter);
2405 if (max_work < budget) {
2406 napi_complete(napi);
2407 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2409 /* As we'll continue in polling mode, count and clear events */
2410 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2415 #ifdef CONFIG_NET_RX_BUSY_POLL
2416 static int be_busy_poll(struct napi_struct *napi)
2418 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2419 struct be_adapter *adapter = eqo->adapter;
2420 struct be_rx_obj *rxo;
2423 if (!be_lock_busy_poll(eqo))
2424 return LL_FLUSH_BUSY;
2426 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2427 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2432 be_unlock_busy_poll(eqo);
2437 void be_detect_error(struct be_adapter *adapter)
2439 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2440 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2443 if (be_hw_error(adapter))
2446 if (lancer_chip(adapter)) {
2447 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2448 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2449 sliport_err1 = ioread32(adapter->db +
2450 SLIPORT_ERROR1_OFFSET);
2451 sliport_err2 = ioread32(adapter->db +
2452 SLIPORT_ERROR2_OFFSET);
2455 pci_read_config_dword(adapter->pdev,
2456 PCICFG_UE_STATUS_LOW, &ue_lo);
2457 pci_read_config_dword(adapter->pdev,
2458 PCICFG_UE_STATUS_HIGH, &ue_hi);
2459 pci_read_config_dword(adapter->pdev,
2460 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2461 pci_read_config_dword(adapter->pdev,
2462 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2464 ue_lo = (ue_lo & ~ue_lo_mask);
2465 ue_hi = (ue_hi & ~ue_hi_mask);
2468 /* On certain platforms BE hardware can indicate spurious UEs.
2469 * Allow the h/w to stop working completely in case of a real UE.
2470 * Hence not setting the hw_error for UE detection.
2472 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2473 adapter->hw_error = true;
2474 /* Do not log error messages if its a FW reset */
2475 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
2476 sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
2477 dev_info(&adapter->pdev->dev,
2478 "Firmware update in progress\n");
2481 dev_err(&adapter->pdev->dev,
2482 "Error detected in the card\n");
2486 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2487 dev_err(&adapter->pdev->dev,
2488 "ERR: sliport status 0x%x\n", sliport_status);
2489 dev_err(&adapter->pdev->dev,
2490 "ERR: sliport error1 0x%x\n", sliport_err1);
2491 dev_err(&adapter->pdev->dev,
2492 "ERR: sliport error2 0x%x\n", sliport_err2);
2496 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2498 dev_err(&adapter->pdev->dev,
2499 "UE: %s bit set\n", ue_status_low_desc[i]);
2504 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2506 dev_err(&adapter->pdev->dev,
2507 "UE: %s bit set\n", ue_status_hi_desc[i]);
2513 static void be_msix_disable(struct be_adapter *adapter)
2515 if (msix_enabled(adapter)) {
2516 pci_disable_msix(adapter->pdev);
2517 adapter->num_msix_vec = 0;
2518 adapter->num_msix_roce_vec = 0;
2522 static int be_msix_enable(struct be_adapter *adapter)
2524 int i, status, num_vec;
2525 struct device *dev = &adapter->pdev->dev;
2527 /* If RoCE is supported, program the max number of NIC vectors that
2528 * may be configured via set-channels, along with vectors needed for
2529 * RoCe. Else, just program the number we'll use initially.
2531 if (be_roce_supported(adapter))
2532 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2533 2 * num_online_cpus());
2535 num_vec = adapter->cfg_num_qs;
2537 for (i = 0; i < num_vec; i++)
2538 adapter->msix_entries[i].entry = i;
2540 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2543 } else if (status >= MIN_MSIX_VECTORS) {
2545 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2551 dev_warn(dev, "MSIx enable failed\n");
2553 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2554 if (!be_physfn(adapter))
2558 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2559 adapter->num_msix_roce_vec = num_vec / 2;
2560 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2561 adapter->num_msix_roce_vec);
2564 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2566 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2567 adapter->num_msix_vec);
2571 static inline int be_msix_vec_get(struct be_adapter *adapter,
2572 struct be_eq_obj *eqo)
2574 return adapter->msix_entries[eqo->msix_idx].vector;
2577 static int be_msix_register(struct be_adapter *adapter)
2579 struct net_device *netdev = adapter->netdev;
2580 struct be_eq_obj *eqo;
2583 for_all_evt_queues(adapter, eqo, i) {
2584 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2585 vec = be_msix_vec_get(adapter, eqo);
2586 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2593 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2594 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2595 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2597 be_msix_disable(adapter);
2601 static int be_irq_register(struct be_adapter *adapter)
2603 struct net_device *netdev = adapter->netdev;
2606 if (msix_enabled(adapter)) {
2607 status = be_msix_register(adapter);
2610 /* INTx is not supported for VF */
2611 if (!be_physfn(adapter))
2615 /* INTx: only the first EQ is used */
2616 netdev->irq = adapter->pdev->irq;
2617 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2618 &adapter->eq_obj[0]);
2620 dev_err(&adapter->pdev->dev,
2621 "INTx request IRQ failed - err %d\n", status);
2625 adapter->isr_registered = true;
2629 static void be_irq_unregister(struct be_adapter *adapter)
2631 struct net_device *netdev = adapter->netdev;
2632 struct be_eq_obj *eqo;
2635 if (!adapter->isr_registered)
2639 if (!msix_enabled(adapter)) {
2640 free_irq(netdev->irq, &adapter->eq_obj[0]);
2645 for_all_evt_queues(adapter, eqo, i)
2646 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2649 adapter->isr_registered = false;
2652 static void be_rx_qs_destroy(struct be_adapter *adapter)
2654 struct be_queue_info *q;
2655 struct be_rx_obj *rxo;
2658 for_all_rx_queues(adapter, rxo, i) {
2661 be_cmd_rxq_destroy(adapter, q);
2662 be_rx_cq_clean(rxo);
2664 be_queue_free(adapter, q);
2668 static int be_close(struct net_device *netdev)
2670 struct be_adapter *adapter = netdev_priv(netdev);
2671 struct be_eq_obj *eqo;
2674 be_roce_dev_close(adapter);
2676 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2677 for_all_evt_queues(adapter, eqo, i) {
2678 napi_disable(&eqo->napi);
2679 be_disable_busy_poll(eqo);
2681 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2684 be_async_mcc_disable(adapter);
2686 /* Wait for all pending tx completions to arrive so that
2687 * all tx skbs are freed.
2689 netif_tx_disable(netdev);
2690 be_tx_compl_clean(adapter);
2692 be_rx_qs_destroy(adapter);
2694 for (i = 1; i < (adapter->uc_macs + 1); i++)
2695 be_cmd_pmac_del(adapter, adapter->if_handle,
2696 adapter->pmac_id[i], 0);
2697 adapter->uc_macs = 0;
2699 for_all_evt_queues(adapter, eqo, i) {
2700 if (msix_enabled(adapter))
2701 synchronize_irq(be_msix_vec_get(adapter, eqo));
2703 synchronize_irq(netdev->irq);
2707 be_irq_unregister(adapter);
2712 static int be_rx_qs_create(struct be_adapter *adapter)
2714 struct be_rx_obj *rxo;
2718 for_all_rx_queues(adapter, rxo, i) {
2719 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2720 sizeof(struct be_eth_rx_d));
2725 /* The FW would like the default RXQ to be created first */
2726 rxo = default_rxo(adapter);
2727 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2728 adapter->if_handle, false, &rxo->rss_id);
2732 for_all_rss_queues(adapter, rxo, i) {
2733 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2734 rx_frag_size, adapter->if_handle,
2735 true, &rxo->rss_id);
2740 if (be_multi_rxq(adapter)) {
2741 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2742 for_all_rss_queues(adapter, rxo, i) {
2745 rsstable[j + i] = rxo->rss_id;
2748 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2749 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2751 if (!BEx_chip(adapter))
2752 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2753 RSS_ENABLE_UDP_IPV6;
2755 /* Disable RSS, if only default RX Q is created */
2756 adapter->rss_flags = RSS_ENABLE_NONE;
2759 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2762 adapter->rss_flags = RSS_ENABLE_NONE;
2766 /* First time posting */
2767 for_all_rx_queues(adapter, rxo, i)
2768 be_post_rx_frags(rxo, GFP_KERNEL);
2772 static int be_open(struct net_device *netdev)
2774 struct be_adapter *adapter = netdev_priv(netdev);
2775 struct be_eq_obj *eqo;
2776 struct be_rx_obj *rxo;
2777 struct be_tx_obj *txo;
2781 status = be_rx_qs_create(adapter);
2785 status = be_irq_register(adapter);
2789 for_all_rx_queues(adapter, rxo, i)
2790 be_cq_notify(adapter, rxo->cq.id, true, 0);
2792 for_all_tx_queues(adapter, txo, i)
2793 be_cq_notify(adapter, txo->cq.id, true, 0);
2795 be_async_mcc_enable(adapter);
2797 for_all_evt_queues(adapter, eqo, i) {
2798 napi_enable(&eqo->napi);
2799 be_enable_busy_poll(eqo);
2800 be_eq_notify(adapter, eqo->q.id, true, true, 0);
2802 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2804 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2806 be_link_status_update(adapter, link_status);
2808 netif_tx_start_all_queues(netdev);
2809 be_roce_dev_open(adapter);
2812 be_close(adapter->netdev);
2816 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2818 struct be_dma_mem cmd;
2822 memset(mac, 0, ETH_ALEN);
2824 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2825 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2831 status = pci_write_config_dword(adapter->pdev,
2832 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2834 dev_err(&adapter->pdev->dev,
2835 "Could not enable Wake-on-lan\n");
2836 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2840 status = be_cmd_enable_magic_wol(adapter,
2841 adapter->netdev->dev_addr, &cmd);
2842 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2843 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2845 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2846 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2847 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2850 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2855 * Generate a seed MAC address from the PF MAC Address using jhash.
2856 * MAC Address for VFs are assigned incrementally starting from the seed.
2857 * These addresses are programmed in the ASIC by the PF and the VF driver
2858 * queries for the MAC address during its probe.
2860 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2865 struct be_vf_cfg *vf_cfg;
2867 be_vf_eth_addr_generate(adapter, mac);
2869 for_all_vfs(adapter, vf_cfg, vf) {
2870 if (BEx_chip(adapter))
2871 status = be_cmd_pmac_add(adapter, mac,
2873 &vf_cfg->pmac_id, vf + 1);
2875 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2879 dev_err(&adapter->pdev->dev,
2880 "Mac address assignment failed for VF %d\n", vf);
2882 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2889 static int be_vfs_mac_query(struct be_adapter *adapter)
2893 struct be_vf_cfg *vf_cfg;
2895 for_all_vfs(adapter, vf_cfg, vf) {
2896 status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
2897 mac, vf_cfg->if_handle,
2901 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2906 static void be_vf_clear(struct be_adapter *adapter)
2908 struct be_vf_cfg *vf_cfg;
2911 if (pci_vfs_assigned(adapter->pdev)) {
2912 dev_warn(&adapter->pdev->dev,
2913 "VFs are assigned to VMs: not disabling VFs\n");
2917 pci_disable_sriov(adapter->pdev);
2919 for_all_vfs(adapter, vf_cfg, vf) {
2920 if (BEx_chip(adapter))
2921 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2922 vf_cfg->pmac_id, vf + 1);
2924 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2927 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2930 kfree(adapter->vf_cfg);
2931 adapter->num_vfs = 0;
2934 static void be_clear_queues(struct be_adapter *adapter)
2936 be_mcc_queues_destroy(adapter);
2937 be_rx_cqs_destroy(adapter);
2938 be_tx_queues_destroy(adapter);
2939 be_evt_queues_destroy(adapter);
2942 static void be_cancel_worker(struct be_adapter *adapter)
2944 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2945 cancel_delayed_work_sync(&adapter->work);
2946 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2950 static void be_mac_clear(struct be_adapter *adapter)
2954 if (adapter->pmac_id) {
2955 for (i = 0; i < (adapter->uc_macs + 1); i++)
2956 be_cmd_pmac_del(adapter, adapter->if_handle,
2957 adapter->pmac_id[i], 0);
2958 adapter->uc_macs = 0;
2960 kfree(adapter->pmac_id);
2961 adapter->pmac_id = NULL;
2965 static int be_clear(struct be_adapter *adapter)
2967 be_cancel_worker(adapter);
2969 if (sriov_enabled(adapter))
2970 be_vf_clear(adapter);
2972 /* delete the primary mac along with the uc-mac list */
2973 be_mac_clear(adapter);
2975 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2977 be_clear_queues(adapter);
2979 be_msix_disable(adapter);
2983 static int be_vfs_if_create(struct be_adapter *adapter)
2985 struct be_resources res = {0};
2986 struct be_vf_cfg *vf_cfg;
2987 u32 cap_flags, en_flags, vf;
2990 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2991 BE_IF_FLAGS_MULTICAST;
2993 for_all_vfs(adapter, vf_cfg, vf) {
2994 if (!BE3_chip(adapter)) {
2995 status = be_cmd_get_profile_config(adapter, &res,
2998 cap_flags = res.if_cap_flags;
3001 /* If a FW profile exists, then cap_flags are updated */
3002 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
3003 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
3004 status = be_cmd_if_create(adapter, cap_flags, en_flags,
3005 &vf_cfg->if_handle, vf + 1);
3013 static int be_vf_setup_init(struct be_adapter *adapter)
3015 struct be_vf_cfg *vf_cfg;
3018 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
3020 if (!adapter->vf_cfg)
3023 for_all_vfs(adapter, vf_cfg, vf) {
3024 vf_cfg->if_handle = -1;
3025 vf_cfg->pmac_id = -1;
3030 static int be_vf_setup(struct be_adapter *adapter)
3032 struct device *dev = &adapter->pdev->dev;
3033 struct be_vf_cfg *vf_cfg;
3034 int status, old_vfs, vf;
3038 old_vfs = pci_num_vf(adapter->pdev);
3040 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3041 if (old_vfs != num_vfs)
3042 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3043 adapter->num_vfs = old_vfs;
3045 if (num_vfs > be_max_vfs(adapter))
3046 dev_info(dev, "Device supports %d VFs and not %d\n",
3047 be_max_vfs(adapter), num_vfs);
3048 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3049 if (!adapter->num_vfs)
3053 status = be_vf_setup_init(adapter);
3058 for_all_vfs(adapter, vf_cfg, vf) {
3059 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3064 status = be_vfs_if_create(adapter);
3070 status = be_vfs_mac_query(adapter);
3074 status = be_vf_eth_addr_config(adapter);
3079 for_all_vfs(adapter, vf_cfg, vf) {
3080 /* Allow VFs to programs MAC/VLAN filters */
3081 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3082 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3083 status = be_cmd_set_fn_privileges(adapter,
3088 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3092 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
3093 * Allow full available bandwidth
3095 if (BE3_chip(adapter) && !old_vfs)
3096 be_cmd_set_qos(adapter, 1000, vf+1);
3098 status = be_cmd_link_status_query(adapter, &lnk_speed,
3101 vf_cfg->tx_rate = lnk_speed;
3104 be_cmd_enable_vf(adapter, vf + 1);
3108 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3110 dev_err(dev, "SRIOV enable failed\n");
3111 adapter->num_vfs = 0;
3117 dev_err(dev, "VF setup failed\n");
3118 be_vf_clear(adapter);
3122 /* On BE2/BE3 FW does not suggest the supported limits */
3123 static void BEx_get_resources(struct be_adapter *adapter,
3124 struct be_resources *res)
3126 struct pci_dev *pdev = adapter->pdev;
3127 bool use_sriov = false;
3130 max_vfs = pci_sriov_get_totalvfs(pdev);
3132 if (BE3_chip(adapter) && sriov_want(adapter)) {
3133 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3134 use_sriov = res->max_vfs;
3137 if (be_physfn(adapter))
3138 res->max_uc_mac = BE_UC_PMAC_COUNT;
3140 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3142 if (adapter->function_mode & FLEX10_MODE)
3143 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3144 else if (adapter->function_mode & UMC_ENABLED)
3145 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
3147 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3148 res->max_mcast_mac = BE_MAX_MC;
3150 /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
3151 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
3152 !be_physfn(adapter) || (adapter->port_num > 1))
3155 res->max_tx_qs = BE3_MAX_TX_QS;
3157 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3158 !use_sriov && be_physfn(adapter))
3159 res->max_rss_qs = (adapter->be3_native) ?
3160 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3161 res->max_rx_qs = res->max_rss_qs + 1;
3163 if (be_physfn(adapter))
3164 res->max_evt_qs = (max_vfs > 0) ?
3165 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
3167 res->max_evt_qs = 1;
3169 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3170 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3171 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3174 static void be_setup_init(struct be_adapter *adapter)
3176 adapter->vlan_prio_bmap = 0xff;
3177 adapter->phy.link_speed = -1;
3178 adapter->if_handle = -1;
3179 adapter->be3_native = false;
3180 adapter->promiscuous = false;
3181 if (be_physfn(adapter))
3182 adapter->cmd_privileges = MAX_PRIVILEGES;
3184 adapter->cmd_privileges = MIN_PRIVILEGES;
3187 static int be_get_resources(struct be_adapter *adapter)
3189 struct device *dev = &adapter->pdev->dev;
3190 struct be_resources res = {0};
3193 if (BEx_chip(adapter)) {
3194 BEx_get_resources(adapter, &res);
3198 /* For Lancer, SH etc read per-function resource limits from FW.
3199 * GET_FUNC_CONFIG returns per function guaranteed limits.
3200 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3202 if (!BEx_chip(adapter)) {
3203 status = be_cmd_get_func_config(adapter, &res);
3207 /* If RoCE may be enabled stash away half the EQs for RoCE */
3208 if (be_roce_supported(adapter))
3209 res.max_evt_qs /= 2;
3212 if (be_physfn(adapter)) {
3213 status = be_cmd_get_profile_config(adapter, &res, 0);
3216 adapter->res.max_vfs = res.max_vfs;
3219 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3220 be_max_txqs(adapter), be_max_rxqs(adapter),
3221 be_max_rss(adapter), be_max_eqs(adapter),
3222 be_max_vfs(adapter));
3223 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3224 be_max_uc(adapter), be_max_mc(adapter),
3225 be_max_vlans(adapter));
3231 /* Routine to query per function resource limits */
3232 static int be_get_config(struct be_adapter *adapter)
3237 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3238 &adapter->function_mode,
3239 &adapter->function_caps,
3240 &adapter->asic_rev);
3244 if (be_physfn(adapter)) {
3245 status = be_cmd_get_active_profile(adapter, &profile_id);
3247 dev_info(&adapter->pdev->dev,
3248 "Using profile 0x%x\n", profile_id);
3251 status = be_get_resources(adapter);
3255 /* primary mac needs 1 pmac entry */
3256 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3258 if (!adapter->pmac_id)
3261 /* Sanitize cfg_num_qs based on HW and platform limits */
3262 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3267 static int be_mac_setup(struct be_adapter *adapter)
3272 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3273 status = be_cmd_get_perm_mac(adapter, mac);
3277 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3278 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3280 /* Maybe the HW was reset; dev_addr must be re-programmed */
3281 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3284 /* For BE3-R VFs, the PF programs the initial MAC address */
3285 if (!(BEx_chip(adapter) && be_virtfn(adapter)))
3286 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3287 &adapter->pmac_id[0], 0);
3291 static void be_schedule_worker(struct be_adapter *adapter)
3293 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3294 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3297 static int be_setup_queues(struct be_adapter *adapter)
3299 struct net_device *netdev = adapter->netdev;
3302 status = be_evt_queues_create(adapter);
3306 status = be_tx_qs_create(adapter);
3310 status = be_rx_cqs_create(adapter);
3314 status = be_mcc_queues_create(adapter);
3318 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3322 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3328 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3332 int be_update_queues(struct be_adapter *adapter)
3334 struct net_device *netdev = adapter->netdev;
3337 if (netif_running(netdev))
3340 be_cancel_worker(adapter);
3342 /* If any vectors have been shared with RoCE we cannot re-program
3345 if (!adapter->num_msix_roce_vec)
3346 be_msix_disable(adapter);
3348 be_clear_queues(adapter);
3350 if (!msix_enabled(adapter)) {
3351 status = be_msix_enable(adapter);
3356 status = be_setup_queues(adapter);
3360 be_schedule_worker(adapter);
3362 if (netif_running(netdev))
3363 status = be_open(netdev);
3368 static int be_setup(struct be_adapter *adapter)
3370 struct device *dev = &adapter->pdev->dev;
3371 u32 tx_fc, rx_fc, en_flags;
3374 be_setup_init(adapter);
3376 if (!lancer_chip(adapter))
3377 be_cmd_req_native_mode(adapter);
3379 status = be_get_config(adapter);
3383 status = be_msix_enable(adapter);
3387 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3388 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3389 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3390 en_flags |= BE_IF_FLAGS_RSS;
3391 en_flags = en_flags & be_if_cap_flags(adapter);
3392 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3393 &adapter->if_handle, 0);
3397 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3399 status = be_setup_queues(adapter);
3404 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3406 status = be_mac_setup(adapter);
3410 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3412 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
3413 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
3415 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
3418 if (adapter->vlans_added)
3419 be_vid_config(adapter);
3421 be_set_rx_mode(adapter->netdev);
3423 be_cmd_get_acpi_wol_cap(adapter);
3425 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3427 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3428 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3431 if (sriov_want(adapter)) {
3432 if (be_max_vfs(adapter))
3433 be_vf_setup(adapter);
3435 dev_warn(dev, "device doesn't support SRIOV\n");
3438 status = be_cmd_get_phy_info(adapter);
3439 if (!status && be_pause_supported(adapter))
3440 adapter->phy.fc_autoneg = 1;
3442 be_schedule_worker(adapter);
3449 #ifdef CONFIG_NET_POLL_CONTROLLER
3450 static void be_netpoll(struct net_device *netdev)
3452 struct be_adapter *adapter = netdev_priv(netdev);
3453 struct be_eq_obj *eqo;
3456 for_all_evt_queues(adapter, eqo, i) {
3457 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3458 napi_schedule(&eqo->napi);
3465 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3466 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3468 static bool be_flash_redboot(struct be_adapter *adapter,
3469 const u8 *p, u32 img_start, int image_size,
3476 crc_offset = hdr_size + img_start + image_size - 4;
3480 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3483 dev_err(&adapter->pdev->dev,
3484 "could not get crc from flash, not flashing redboot\n");
3488 /*update redboot only if crc does not match*/
3489 if (!memcmp(flashed_crc, p, 4))
3495 static bool phy_flashing_required(struct be_adapter *adapter)
3497 return (adapter->phy.phy_type == TN_8022 &&
3498 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3501 static bool is_comp_in_ufi(struct be_adapter *adapter,
3502 struct flash_section_info *fsec, int type)
3504 int i = 0, img_type = 0;
3505 struct flash_section_info_g2 *fsec_g2 = NULL;
3507 if (BE2_chip(adapter))
3508 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3510 for (i = 0; i < MAX_FLASH_COMP; i++) {
3512 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3514 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3516 if (img_type == type)
3523 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3525 const struct firmware *fw)
3527 struct flash_section_info *fsec = NULL;
3528 const u8 *p = fw->data;
3531 while (p < (fw->data + fw->size)) {
3532 fsec = (struct flash_section_info *)p;
3533 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3540 static int be_flash(struct be_adapter *adapter, const u8 *img,
3541 struct be_dma_mem *flash_cmd, int optype, int img_size)
3543 u32 total_bytes = 0, flash_op, num_bytes = 0;
3545 struct be_cmd_write_flashrom *req = flash_cmd->va;
3547 total_bytes = img_size;
3548 while (total_bytes) {
3549 num_bytes = min_t(u32, 32*1024, total_bytes);
3551 total_bytes -= num_bytes;
3554 if (optype == OPTYPE_PHY_FW)
3555 flash_op = FLASHROM_OPER_PHY_FLASH;
3557 flash_op = FLASHROM_OPER_FLASH;
3559 if (optype == OPTYPE_PHY_FW)
3560 flash_op = FLASHROM_OPER_PHY_SAVE;
3562 flash_op = FLASHROM_OPER_SAVE;
3565 memcpy(req->data_buf, img, num_bytes);
3567 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3568 flash_op, num_bytes);
3570 if (status == ILLEGAL_IOCTL_REQ &&
3571 optype == OPTYPE_PHY_FW)
3573 dev_err(&adapter->pdev->dev,
3574 "cmd to write to flash rom failed.\n");
3581 /* For BE2, BE3 and BE3-R */
3582 static int be_flash_BEx(struct be_adapter *adapter,
3583 const struct firmware *fw,
3584 struct be_dma_mem *flash_cmd,
3588 int status = 0, i, filehdr_size = 0;
3589 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3590 const u8 *p = fw->data;
3591 const struct flash_comp *pflashcomp;
3592 int num_comp, redboot;
3593 struct flash_section_info *fsec = NULL;
3595 struct flash_comp gen3_flash_types[] = {
3596 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3597 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3598 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3599 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3600 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3601 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3602 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3603 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3604 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3605 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3606 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3607 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3608 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3609 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3610 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3611 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3612 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3613 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3614 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3615 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3618 struct flash_comp gen2_flash_types[] = {
3619 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3620 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3621 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3622 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3623 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3624 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3625 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3626 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3627 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3628 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3629 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3630 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3631 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3632 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3633 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3634 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3637 if (BE3_chip(adapter)) {
3638 pflashcomp = gen3_flash_types;
3639 filehdr_size = sizeof(struct flash_file_hdr_g3);
3640 num_comp = ARRAY_SIZE(gen3_flash_types);
3642 pflashcomp = gen2_flash_types;
3643 filehdr_size = sizeof(struct flash_file_hdr_g2);
3644 num_comp = ARRAY_SIZE(gen2_flash_types);
3647 /* Get flash section info*/
3648 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3650 dev_err(&adapter->pdev->dev,
3651 "Invalid Cookie. UFI corrupted ?\n");
3654 for (i = 0; i < num_comp; i++) {
3655 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3658 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3659 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3662 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3663 !phy_flashing_required(adapter))
3666 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3667 redboot = be_flash_redboot(adapter, fw->data,
3668 pflashcomp[i].offset, pflashcomp[i].size,
3669 filehdr_size + img_hdrs_size);
3675 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3676 if (p + pflashcomp[i].size > fw->data + fw->size)
3679 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3680 pflashcomp[i].size);
3682 dev_err(&adapter->pdev->dev,
3683 "Flashing section type %d failed.\n",
3684 pflashcomp[i].img_type);
3691 static int be_flash_skyhawk(struct be_adapter *adapter,
3692 const struct firmware *fw,
3693 struct be_dma_mem *flash_cmd, int num_of_images)
3695 int status = 0, i, filehdr_size = 0;
3696 int img_offset, img_size, img_optype, redboot;
3697 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3698 const u8 *p = fw->data;
3699 struct flash_section_info *fsec = NULL;
3701 filehdr_size = sizeof(struct flash_file_hdr_g3);
3702 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3704 dev_err(&adapter->pdev->dev,
3705 "Invalid Cookie. UFI corrupted ?\n");
3709 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3710 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3711 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3713 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3714 case IMAGE_FIRMWARE_iSCSI:
3715 img_optype = OPTYPE_ISCSI_ACTIVE;
3717 case IMAGE_BOOT_CODE:
3718 img_optype = OPTYPE_REDBOOT;
3720 case IMAGE_OPTION_ROM_ISCSI:
3721 img_optype = OPTYPE_BIOS;
3723 case IMAGE_OPTION_ROM_PXE:
3724 img_optype = OPTYPE_PXE_BIOS;
3726 case IMAGE_OPTION_ROM_FCoE:
3727 img_optype = OPTYPE_FCOE_BIOS;
3729 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3730 img_optype = OPTYPE_ISCSI_BACKUP;
3733 img_optype = OPTYPE_NCSI_FW;
3739 if (img_optype == OPTYPE_REDBOOT) {
3740 redboot = be_flash_redboot(adapter, fw->data,
3741 img_offset, img_size,
3742 filehdr_size + img_hdrs_size);
3748 p += filehdr_size + img_offset + img_hdrs_size;
3749 if (p + img_size > fw->data + fw->size)
3752 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3754 dev_err(&adapter->pdev->dev,
3755 "Flashing section type %d failed.\n",
3756 fsec->fsec_entry[i].type);
3763 static int lancer_fw_download(struct be_adapter *adapter,
3764 const struct firmware *fw)
3766 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3767 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3768 struct be_dma_mem flash_cmd;
3769 const u8 *data_ptr = NULL;
3770 u8 *dest_image_ptr = NULL;
3771 size_t image_size = 0;
3773 u32 data_written = 0;
3779 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3780 dev_err(&adapter->pdev->dev,
3781 "FW Image not properly aligned. "
3782 "Length must be 4 byte aligned.\n");
3784 goto lancer_fw_exit;
3787 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3788 + LANCER_FW_DOWNLOAD_CHUNK;
3789 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3790 &flash_cmd.dma, GFP_KERNEL);
3791 if (!flash_cmd.va) {
3793 goto lancer_fw_exit;
3796 dest_image_ptr = flash_cmd.va +
3797 sizeof(struct lancer_cmd_req_write_object);
3798 image_size = fw->size;
3799 data_ptr = fw->data;
3801 while (image_size) {
3802 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3804 /* Copy the image chunk content. */
3805 memcpy(dest_image_ptr, data_ptr, chunk_size);
3807 status = lancer_cmd_write_object(adapter, &flash_cmd,
3809 LANCER_FW_DOWNLOAD_LOCATION,
3810 &data_written, &change_status,
3815 offset += data_written;
3816 data_ptr += data_written;
3817 image_size -= data_written;
3821 /* Commit the FW written */
3822 status = lancer_cmd_write_object(adapter, &flash_cmd,
3824 LANCER_FW_DOWNLOAD_LOCATION,
3825 &data_written, &change_status,
3829 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3832 dev_err(&adapter->pdev->dev,
3833 "Firmware load error. "
3834 "Status code: 0x%x Additional Status: 0x%x\n",
3835 status, add_status);
3836 goto lancer_fw_exit;
3839 if (change_status == LANCER_FW_RESET_NEEDED) {
3840 dev_info(&adapter->pdev->dev,
3841 "Resetting adapter to activate new FW\n");
3842 status = lancer_physdev_ctrl(adapter,
3843 PHYSDEV_CONTROL_FW_RESET_MASK);
3845 dev_err(&adapter->pdev->dev,
3846 "Adapter busy for FW reset.\n"
3847 "New FW will not be active.\n");
3848 goto lancer_fw_exit;
3850 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3851 dev_err(&adapter->pdev->dev,
3852 "System reboot required for new FW"
3856 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3863 #define UFI_TYPE3R 10
3865 static int be_get_ufi_type(struct be_adapter *adapter,
3866 struct flash_file_hdr_g3 *fhdr)
3869 goto be_get_ufi_exit;
3871 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3873 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3874 if (fhdr->asic_type_rev == 0x10)
3878 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3882 dev_err(&adapter->pdev->dev,
3883 "UFI and Interface are not compatible for flashing\n");
3887 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3889 struct flash_file_hdr_g3 *fhdr3;
3890 struct image_hdr *img_hdr_ptr = NULL;
3891 struct be_dma_mem flash_cmd;
3893 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3895 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3896 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3897 &flash_cmd.dma, GFP_KERNEL);
3898 if (!flash_cmd.va) {
3904 fhdr3 = (struct flash_file_hdr_g3 *)p;
3906 ufi_type = be_get_ufi_type(adapter, fhdr3);
3908 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3909 for (i = 0; i < num_imgs; i++) {
3910 img_hdr_ptr = (struct image_hdr *)(fw->data +
3911 (sizeof(struct flash_file_hdr_g3) +
3912 i * sizeof(struct image_hdr)));
3913 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3916 status = be_flash_skyhawk(adapter, fw,
3917 &flash_cmd, num_imgs);
3920 status = be_flash_BEx(adapter, fw, &flash_cmd,
3924 /* Do not flash this ufi on BE3-R cards */
3925 if (adapter->asic_rev < 0x10)
3926 status = be_flash_BEx(adapter, fw,
3931 dev_err(&adapter->pdev->dev,
3932 "Can't load BE3 UFI on BE3R\n");
3938 if (ufi_type == UFI_TYPE2)
3939 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3940 else if (ufi_type == -1)
3943 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3946 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3950 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3956 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3958 const struct firmware *fw;
3961 if (!netif_running(adapter->netdev)) {
3962 dev_err(&adapter->pdev->dev,
3963 "Firmware load not allowed (interface is down)\n");
3967 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3971 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3973 if (lancer_chip(adapter))
3974 status = lancer_fw_download(adapter, fw);
3976 status = be_fw_download(adapter, fw);
3979 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3980 adapter->fw_on_flash);
3983 release_firmware(fw);
3987 static int be_ndo_bridge_setlink(struct net_device *dev,
3988 struct nlmsghdr *nlh)
3990 struct be_adapter *adapter = netdev_priv(dev);
3991 struct nlattr *attr, *br_spec;
3996 if (!sriov_enabled(adapter))
3999 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
4001 nla_for_each_nested(attr, br_spec, rem) {
4002 if (nla_type(attr) != IFLA_BRIDGE_MODE)
4005 mode = nla_get_u16(attr);
4006 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
4009 status = be_cmd_set_hsw_config(adapter, 0, 0,
4011 mode == BRIDGE_MODE_VEPA ?
4012 PORT_FWD_TYPE_VEPA :
4017 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
4018 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4023 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
4024 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4029 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4030 struct net_device *dev,
4033 struct be_adapter *adapter = netdev_priv(dev);
4037 if (!sriov_enabled(adapter))
4040 /* BE and Lancer chips support VEB mode only */
4041 if (BEx_chip(adapter) || lancer_chip(adapter)) {
4042 hsw_mode = PORT_FWD_TYPE_VEB;
4044 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4045 adapter->if_handle, &hsw_mode);
4050 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4051 hsw_mode == PORT_FWD_TYPE_VEPA ?
4052 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4055 static const struct net_device_ops be_netdev_ops = {
4056 .ndo_open = be_open,
4057 .ndo_stop = be_close,
4058 .ndo_start_xmit = be_xmit,
4059 .ndo_set_rx_mode = be_set_rx_mode,
4060 .ndo_set_mac_address = be_mac_addr_set,
4061 .ndo_change_mtu = be_change_mtu,
4062 .ndo_get_stats64 = be_get_stats64,
4063 .ndo_validate_addr = eth_validate_addr,
4064 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
4065 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
4066 .ndo_set_vf_mac = be_set_vf_mac,
4067 .ndo_set_vf_vlan = be_set_vf_vlan,
4068 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
4069 .ndo_get_vf_config = be_get_vf_config,
4070 #ifdef CONFIG_NET_POLL_CONTROLLER
4071 .ndo_poll_controller = be_netpoll,
4073 .ndo_bridge_setlink = be_ndo_bridge_setlink,
4074 .ndo_bridge_getlink = be_ndo_bridge_getlink,
4075 #ifdef CONFIG_NET_RX_BUSY_POLL
4076 .ndo_busy_poll = be_busy_poll
4080 static void be_netdev_init(struct net_device *netdev)
4082 struct be_adapter *adapter = netdev_priv(netdev);
4084 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4085 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4086 NETIF_F_HW_VLAN_CTAG_TX;
4087 if (be_multi_rxq(adapter))
4088 netdev->hw_features |= NETIF_F_RXHASH;
4090 netdev->features |= netdev->hw_features |
4091 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4093 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4094 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4096 netdev->priv_flags |= IFF_UNICAST_FLT;
4098 netdev->flags |= IFF_MULTICAST;
4100 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4102 netdev->netdev_ops = &be_netdev_ops;
4104 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
4107 static void be_unmap_pci_bars(struct be_adapter *adapter)
4110 pci_iounmap(adapter->pdev, adapter->csr);
4112 pci_iounmap(adapter->pdev, adapter->db);
4115 static int db_bar(struct be_adapter *adapter)
4117 if (lancer_chip(adapter) || !be_physfn(adapter))
4123 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4125 if (skyhawk_chip(adapter)) {
4126 adapter->roce_db.size = 4096;
4127 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4129 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4135 static int be_map_pci_bars(struct be_adapter *adapter)
4139 if (BEx_chip(adapter) && be_physfn(adapter)) {
4140 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4141 if (adapter->csr == NULL)
4145 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4150 be_roce_map_pci_bars(adapter);
4154 be_unmap_pci_bars(adapter);
4158 static void be_ctrl_cleanup(struct be_adapter *adapter)
4160 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4162 be_unmap_pci_bars(adapter);
4165 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4168 mem = &adapter->rx_filter;
4170 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4174 static int be_ctrl_init(struct be_adapter *adapter)
4176 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4177 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4178 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4182 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4183 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4184 SLI_INTF_FAMILY_SHIFT;
4185 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4187 status = be_map_pci_bars(adapter);
4191 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4192 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4193 mbox_mem_alloc->size,
4194 &mbox_mem_alloc->dma,
4196 if (!mbox_mem_alloc->va) {
4198 goto unmap_pci_bars;
4200 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4201 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4202 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4203 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4205 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4206 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4207 rx_filter->size, &rx_filter->dma,
4209 if (rx_filter->va == NULL) {
4214 mutex_init(&adapter->mbox_lock);
4215 spin_lock_init(&adapter->mcc_lock);
4216 spin_lock_init(&adapter->mcc_cq_lock);
4218 init_completion(&adapter->et_cmd_compl);
4219 pci_save_state(adapter->pdev);
4223 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4224 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4227 be_unmap_pci_bars(adapter);
4233 static void be_stats_cleanup(struct be_adapter *adapter)
4235 struct be_dma_mem *cmd = &adapter->stats_cmd;
4238 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4242 static int be_stats_init(struct be_adapter *adapter)
4244 struct be_dma_mem *cmd = &adapter->stats_cmd;
4246 if (lancer_chip(adapter))
4247 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4248 else if (BE2_chip(adapter))
4249 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4250 else if (BE3_chip(adapter))
4251 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4253 /* ALL non-BE ASICs */
4254 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4256 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4258 if (cmd->va == NULL)
4263 static void be_remove(struct pci_dev *pdev)
4265 struct be_adapter *adapter = pci_get_drvdata(pdev);
4270 be_roce_dev_remove(adapter);
4271 be_intr_set(adapter, false);
4273 cancel_delayed_work_sync(&adapter->func_recovery_work);
4275 unregister_netdev(adapter->netdev);
4279 /* tell fw we're done with firing cmds */
4280 be_cmd_fw_clean(adapter);
4282 be_stats_cleanup(adapter);
4284 be_ctrl_cleanup(adapter);
4286 pci_disable_pcie_error_reporting(pdev);
4288 pci_release_regions(pdev);
4289 pci_disable_device(pdev);
4291 free_netdev(adapter->netdev);
4294 static int be_get_initial_config(struct be_adapter *adapter)
4298 status = be_cmd_get_cntl_attributes(adapter);
4302 /* Must be a power of 2 or else MODULO will BUG_ON */
4303 adapter->be_get_temp_freq = 64;
4305 if (BEx_chip(adapter)) {
4306 level = be_cmd_get_fw_log_level(adapter);
4307 adapter->msg_enable =
4308 level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4311 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4315 static int lancer_recover_func(struct be_adapter *adapter)
4317 struct device *dev = &adapter->pdev->dev;
4320 status = lancer_test_and_set_rdy_state(adapter);
4324 if (netif_running(adapter->netdev))
4325 be_close(adapter->netdev);
4329 be_clear_all_error(adapter);
4331 status = be_setup(adapter);
4335 if (netif_running(adapter->netdev)) {
4336 status = be_open(adapter->netdev);
4341 dev_err(dev, "Adapter recovery successful\n");
4344 if (status == -EAGAIN)
4345 dev_err(dev, "Waiting for resource provisioning\n");
4347 dev_err(dev, "Adapter recovery failed\n");
4352 static void be_func_recovery_task(struct work_struct *work)
4354 struct be_adapter *adapter =
4355 container_of(work, struct be_adapter, func_recovery_work.work);
4358 be_detect_error(adapter);
4360 if (adapter->hw_error && lancer_chip(adapter)) {
4363 netif_device_detach(adapter->netdev);
4366 status = lancer_recover_func(adapter);
4368 netif_device_attach(adapter->netdev);
4371 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4372 * no need to attempt further recovery.
4374 if (!status || status == -EAGAIN)
4375 schedule_delayed_work(&adapter->func_recovery_work,
4376 msecs_to_jiffies(1000));
4379 static void be_worker(struct work_struct *work)
4381 struct be_adapter *adapter =
4382 container_of(work, struct be_adapter, work.work);
4383 struct be_rx_obj *rxo;
4386 /* when interrupts are not yet enabled, just reap any pending
4387 * mcc completions */
4388 if (!netif_running(adapter->netdev)) {
4390 be_process_mcc(adapter);
4395 if (!adapter->stats_cmd_sent) {
4396 if (lancer_chip(adapter))
4397 lancer_cmd_get_pport_stats(adapter,
4398 &adapter->stats_cmd);
4400 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4403 if (be_physfn(adapter) &&
4404 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4405 be_cmd_get_die_temperature(adapter);
4407 for_all_rx_queues(adapter, rxo, i) {
4408 /* Replenish RX-queues starved due to memory
4409 * allocation failures.
4411 if (rxo->rx_post_starved)
4412 be_post_rx_frags(rxo, GFP_KERNEL);
4415 be_eqd_update(adapter);
4418 adapter->work_counter++;
4419 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4422 /* If any VFs are already enabled don't FLR the PF */
4423 static bool be_reset_required(struct be_adapter *adapter)
4425 return pci_num_vf(adapter->pdev) ? false : true;
4428 static char *mc_name(struct be_adapter *adapter)
4430 if (adapter->function_mode & FLEX10_MODE)
4432 else if (adapter->function_mode & VNIC_MODE)
4434 else if (adapter->function_mode & UMC_ENABLED)
4440 static inline char *func_name(struct be_adapter *adapter)
4442 return be_physfn(adapter) ? "PF" : "VF";
4445 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4448 struct be_adapter *adapter;
4449 struct net_device *netdev;
4452 status = pci_enable_device(pdev);
4456 status = pci_request_regions(pdev, DRV_NAME);
4459 pci_set_master(pdev);
4461 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4462 if (netdev == NULL) {
4466 adapter = netdev_priv(netdev);
4467 adapter->pdev = pdev;
4468 pci_set_drvdata(pdev, adapter);
4469 adapter->netdev = netdev;
4470 SET_NETDEV_DEV(netdev, &pdev->dev);
4472 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
4474 netdev->features |= NETIF_F_HIGHDMA;
4476 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
4478 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4483 if (be_physfn(adapter)) {
4484 status = pci_enable_pcie_error_reporting(pdev);
4486 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4489 status = be_ctrl_init(adapter);
4493 /* sync up with fw's ready state */
4494 if (be_physfn(adapter)) {
4495 status = be_fw_wait_ready(adapter);
4500 if (be_reset_required(adapter)) {
4501 status = be_cmd_reset_function(adapter);
4505 /* Wait for interrupts to quiesce after an FLR */
4509 /* Allow interrupts for other ULPs running on NIC function */
4510 be_intr_set(adapter, true);
4512 /* tell fw we're ready to fire cmds */
4513 status = be_cmd_fw_init(adapter);
4517 status = be_stats_init(adapter);
4521 status = be_get_initial_config(adapter);
4525 INIT_DELAYED_WORK(&adapter->work, be_worker);
4526 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4527 adapter->rx_fc = adapter->tx_fc = true;
4529 status = be_setup(adapter);
4533 be_netdev_init(netdev);
4534 status = register_netdev(netdev);
4538 be_roce_dev_add(adapter);
4540 schedule_delayed_work(&adapter->func_recovery_work,
4541 msecs_to_jiffies(1000));
4543 be_cmd_query_port_name(adapter, &port_name);
4545 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4546 func_name(adapter), mc_name(adapter), port_name);
4553 be_stats_cleanup(adapter);
4555 be_ctrl_cleanup(adapter);
4557 free_netdev(netdev);
4559 pci_release_regions(pdev);
4561 pci_disable_device(pdev);
4563 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4567 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4569 struct be_adapter *adapter = pci_get_drvdata(pdev);
4570 struct net_device *netdev = adapter->netdev;
4572 if (adapter->wol_en)
4573 be_setup_wol(adapter, true);
4575 be_intr_set(adapter, false);
4576 cancel_delayed_work_sync(&adapter->func_recovery_work);
4578 netif_device_detach(netdev);
4579 if (netif_running(netdev)) {
4586 pci_save_state(pdev);
4587 pci_disable_device(pdev);
4588 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4592 static int be_resume(struct pci_dev *pdev)
4595 struct be_adapter *adapter = pci_get_drvdata(pdev);
4596 struct net_device *netdev = adapter->netdev;
4598 netif_device_detach(netdev);
4600 status = pci_enable_device(pdev);
4604 pci_set_power_state(pdev, PCI_D0);
4605 pci_restore_state(pdev);
4607 status = be_fw_wait_ready(adapter);
4611 be_intr_set(adapter, true);
4612 /* tell fw we're ready to fire cmds */
4613 status = be_cmd_fw_init(adapter);
4618 if (netif_running(netdev)) {
4624 schedule_delayed_work(&adapter->func_recovery_work,
4625 msecs_to_jiffies(1000));
4626 netif_device_attach(netdev);
4628 if (adapter->wol_en)
4629 be_setup_wol(adapter, false);
4635 * An FLR will stop BE from DMAing any data.
4637 static void be_shutdown(struct pci_dev *pdev)
4639 struct be_adapter *adapter = pci_get_drvdata(pdev);
4644 cancel_delayed_work_sync(&adapter->work);
4645 cancel_delayed_work_sync(&adapter->func_recovery_work);
4647 netif_device_detach(adapter->netdev);
4649 be_cmd_reset_function(adapter);
4651 pci_disable_device(pdev);
4654 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4655 pci_channel_state_t state)
4657 struct be_adapter *adapter = pci_get_drvdata(pdev);
4658 struct net_device *netdev = adapter->netdev;
4660 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4662 if (!adapter->eeh_error) {
4663 adapter->eeh_error = true;
4665 cancel_delayed_work_sync(&adapter->func_recovery_work);
4668 netif_device_detach(netdev);
4669 if (netif_running(netdev))
4676 if (state == pci_channel_io_perm_failure)
4677 return PCI_ERS_RESULT_DISCONNECT;
4679 pci_disable_device(pdev);
4681 /* The error could cause the FW to trigger a flash debug dump.
4682 * Resetting the card while flash dump is in progress
4683 * can cause it not to recover; wait for it to finish.
4684 * Wait only for first function as it is needed only once per
4687 if (pdev->devfn == 0)
4690 return PCI_ERS_RESULT_NEED_RESET;
4693 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4695 struct be_adapter *adapter = pci_get_drvdata(pdev);
4698 dev_info(&adapter->pdev->dev, "EEH reset\n");
4700 status = pci_enable_device(pdev);
4702 return PCI_ERS_RESULT_DISCONNECT;
4704 pci_set_master(pdev);
4705 pci_set_power_state(pdev, PCI_D0);
4706 pci_restore_state(pdev);
4708 /* Check if card is ok and fw is ready */
4709 dev_info(&adapter->pdev->dev,
4710 "Waiting for FW to be ready after EEH reset\n");
4711 status = be_fw_wait_ready(adapter);
4713 return PCI_ERS_RESULT_DISCONNECT;
4715 pci_cleanup_aer_uncorrect_error_status(pdev);
4716 be_clear_all_error(adapter);
4717 return PCI_ERS_RESULT_RECOVERED;
4720 static void be_eeh_resume(struct pci_dev *pdev)
4723 struct be_adapter *adapter = pci_get_drvdata(pdev);
4724 struct net_device *netdev = adapter->netdev;
4726 dev_info(&adapter->pdev->dev, "EEH resume\n");
4728 pci_save_state(pdev);
4730 status = be_cmd_reset_function(adapter);
4734 /* tell fw we're ready to fire cmds */
4735 status = be_cmd_fw_init(adapter);
4739 status = be_setup(adapter);
4743 if (netif_running(netdev)) {
4744 status = be_open(netdev);
4749 schedule_delayed_work(&adapter->func_recovery_work,
4750 msecs_to_jiffies(1000));
4751 netif_device_attach(netdev);
4754 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4757 static const struct pci_error_handlers be_eeh_handlers = {
4758 .error_detected = be_eeh_err_detected,
4759 .slot_reset = be_eeh_reset,
4760 .resume = be_eeh_resume,
4763 static struct pci_driver be_driver = {
4765 .id_table = be_dev_ids,
4767 .remove = be_remove,
4768 .suspend = be_suspend,
4769 .resume = be_resume,
4770 .shutdown = be_shutdown,
4771 .err_handler = &be_eeh_handlers
4774 static int __init be_init_module(void)
4776 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4777 rx_frag_size != 2048) {
4778 printk(KERN_WARNING DRV_NAME
4779 " : Module param rx_frag_size must be 2048/4096/8192."
4781 rx_frag_size = 2048;
4784 return pci_register_driver(&be_driver);
4786 module_init(be_init_module);
4788 static void __exit be_exit_module(void)
4790 pci_unregister_driver(&be_driver);
4792 module_exit(be_exit_module);