2 * Copyright (C) 2005 - 2014 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 pvid-tagging mode
940 if (be_pvid_tagging_enabled(adapter) &&
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_frag) {
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_frag = false;
1473 dma_sync_single_for_cpu(&adapter->pdev->dev,
1474 dma_unmap_addr(rx_page_info, bus),
1475 rx_frag_size, DMA_FROM_DEVICE);
1478 queue_tail_inc(rxq);
1479 atomic_dec(&rxq->used);
1480 return rx_page_info;
1483 /* Throwaway the data in the Rx completion */
1484 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1485 struct be_rx_compl_info *rxcp)
1487 struct be_rx_page_info *page_info;
1488 u16 i, num_rcvd = rxcp->num_rcvd;
1490 for (i = 0; i < num_rcvd; i++) {
1491 page_info = get_rx_page_info(rxo);
1492 put_page(page_info->page);
1493 memset(page_info, 0, sizeof(*page_info));
1498 * skb_fill_rx_data forms a complete skb for an ether frame
1499 * indicated by rxcp.
1501 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1502 struct be_rx_compl_info *rxcp)
1504 struct be_rx_page_info *page_info;
1506 u16 hdr_len, curr_frag_len, remaining;
1509 page_info = get_rx_page_info(rxo);
1510 start = page_address(page_info->page) + page_info->page_offset;
1513 /* Copy data in the first descriptor of this completion */
1514 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1516 skb->len = curr_frag_len;
1517 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1518 memcpy(skb->data, start, curr_frag_len);
1519 /* Complete packet has now been moved to data */
1520 put_page(page_info->page);
1522 skb->tail += curr_frag_len;
1525 memcpy(skb->data, start, hdr_len);
1526 skb_shinfo(skb)->nr_frags = 1;
1527 skb_frag_set_page(skb, 0, page_info->page);
1528 skb_shinfo(skb)->frags[0].page_offset =
1529 page_info->page_offset + hdr_len;
1530 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1531 skb->data_len = curr_frag_len - hdr_len;
1532 skb->truesize += rx_frag_size;
1533 skb->tail += hdr_len;
1535 page_info->page = NULL;
1537 if (rxcp->pkt_size <= rx_frag_size) {
1538 BUG_ON(rxcp->num_rcvd != 1);
1542 /* More frags present for this completion */
1543 remaining = rxcp->pkt_size - curr_frag_len;
1544 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1545 page_info = get_rx_page_info(rxo);
1546 curr_frag_len = min(remaining, rx_frag_size);
1548 /* Coalesce all frags from the same physical page in one slot */
1549 if (page_info->page_offset == 0) {
1552 skb_frag_set_page(skb, j, page_info->page);
1553 skb_shinfo(skb)->frags[j].page_offset =
1554 page_info->page_offset;
1555 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1556 skb_shinfo(skb)->nr_frags++;
1558 put_page(page_info->page);
1561 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1562 skb->len += curr_frag_len;
1563 skb->data_len += curr_frag_len;
1564 skb->truesize += rx_frag_size;
1565 remaining -= curr_frag_len;
1566 page_info->page = NULL;
1568 BUG_ON(j > MAX_SKB_FRAGS);
1571 /* Process the RX completion indicated by rxcp when GRO is disabled */
1572 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1573 struct be_rx_compl_info *rxcp)
1575 struct be_adapter *adapter = rxo->adapter;
1576 struct net_device *netdev = adapter->netdev;
1577 struct sk_buff *skb;
1579 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1580 if (unlikely(!skb)) {
1581 rx_stats(rxo)->rx_drops_no_skbs++;
1582 be_rx_compl_discard(rxo, rxcp);
1586 skb_fill_rx_data(rxo, skb, rxcp);
1588 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1589 skb->ip_summed = CHECKSUM_UNNECESSARY;
1591 skb_checksum_none_assert(skb);
1593 skb->protocol = eth_type_trans(skb, netdev);
1594 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1595 if (netdev->features & NETIF_F_RXHASH)
1596 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1597 skb_mark_napi_id(skb, napi);
1600 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1602 netif_receive_skb(skb);
1605 /* Process the RX completion indicated by rxcp when GRO is enabled */
1606 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1607 struct napi_struct *napi,
1608 struct be_rx_compl_info *rxcp)
1610 struct be_adapter *adapter = rxo->adapter;
1611 struct be_rx_page_info *page_info;
1612 struct sk_buff *skb = NULL;
1613 u16 remaining, curr_frag_len;
1616 skb = napi_get_frags(napi);
1618 be_rx_compl_discard(rxo, rxcp);
1622 remaining = rxcp->pkt_size;
1623 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1624 page_info = get_rx_page_info(rxo);
1626 curr_frag_len = min(remaining, rx_frag_size);
1628 /* Coalesce all frags from the same physical page in one slot */
1629 if (i == 0 || page_info->page_offset == 0) {
1630 /* First frag or Fresh page */
1632 skb_frag_set_page(skb, j, page_info->page);
1633 skb_shinfo(skb)->frags[j].page_offset =
1634 page_info->page_offset;
1635 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1637 put_page(page_info->page);
1639 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1640 skb->truesize += rx_frag_size;
1641 remaining -= curr_frag_len;
1642 memset(page_info, 0, sizeof(*page_info));
1644 BUG_ON(j > MAX_SKB_FRAGS);
1646 skb_shinfo(skb)->nr_frags = j + 1;
1647 skb->len = rxcp->pkt_size;
1648 skb->data_len = rxcp->pkt_size;
1649 skb->ip_summed = CHECKSUM_UNNECESSARY;
1650 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1651 if (adapter->netdev->features & NETIF_F_RXHASH)
1652 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1653 skb_mark_napi_id(skb, napi);
1656 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1658 napi_gro_frags(napi);
1661 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1662 struct be_rx_compl_info *rxcp)
1665 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1666 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1667 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1668 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1669 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1671 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1673 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1675 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1677 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1679 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1681 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1683 rxcp->qnq = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, qnq,
1685 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1688 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1691 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1692 struct be_rx_compl_info *rxcp)
1695 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1696 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1697 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1698 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1699 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1701 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1703 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1705 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1707 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1709 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1711 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1713 rxcp->qnq = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, qnq,
1715 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1718 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1719 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1723 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1725 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1726 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1727 struct be_adapter *adapter = rxo->adapter;
1729 /* For checking the valid bit it is Ok to use either definition as the
1730 * valid bit is at the same position in both v0 and v1 Rx compl */
1731 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1735 be_dws_le_to_cpu(compl, sizeof(*compl));
1737 if (adapter->be3_native)
1738 be_parse_rx_compl_v1(compl, rxcp);
1740 be_parse_rx_compl_v0(compl, rxcp);
1746 /* In QNQ modes, if qnq bit is not set, then the packet was
1747 * tagged only with the transparent outer vlan-tag and must
1748 * not be treated as a vlan packet by host
1750 if (be_is_qnq_mode(adapter) && !rxcp->qnq)
1753 if (!lancer_chip(adapter))
1754 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1756 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1757 !adapter->vlan_tag[rxcp->vlan_tag])
1761 /* As the compl has been parsed, reset it; we wont touch it again */
1762 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1764 queue_tail_inc(&rxo->cq);
1768 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1770 u32 order = get_order(size);
1774 return alloc_pages(gfp, order);
1778 * Allocate a page, split it to fragments of size rx_frag_size and post as
1779 * receive buffers to BE
1781 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1783 struct be_adapter *adapter = rxo->adapter;
1784 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1785 struct be_queue_info *rxq = &rxo->q;
1786 struct page *pagep = NULL;
1787 struct device *dev = &adapter->pdev->dev;
1788 struct be_eth_rx_d *rxd;
1789 u64 page_dmaaddr = 0, frag_dmaaddr;
1790 u32 posted, page_offset = 0;
1792 page_info = &rxo->page_info_tbl[rxq->head];
1793 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1795 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1796 if (unlikely(!pagep)) {
1797 rx_stats(rxo)->rx_post_fail++;
1800 page_dmaaddr = dma_map_page(dev, pagep, 0,
1801 adapter->big_page_size,
1803 if (dma_mapping_error(dev, page_dmaaddr)) {
1806 rx_stats(rxo)->rx_post_fail++;
1812 page_offset += rx_frag_size;
1814 page_info->page_offset = page_offset;
1815 page_info->page = pagep;
1817 rxd = queue_head_node(rxq);
1818 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1819 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1820 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1822 /* Any space left in the current big page for another frag? */
1823 if ((page_offset + rx_frag_size + rx_frag_size) >
1824 adapter->big_page_size) {
1826 page_info->last_frag = true;
1827 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1829 dma_unmap_addr_set(page_info, bus, frag_dmaaddr);
1832 prev_page_info = page_info;
1833 queue_head_inc(rxq);
1834 page_info = &rxo->page_info_tbl[rxq->head];
1837 /* Mark the last frag of a page when we break out of the above loop
1838 * with no more slots available in the RXQ
1841 prev_page_info->last_frag = true;
1842 dma_unmap_addr_set(prev_page_info, bus, page_dmaaddr);
1846 atomic_add(posted, &rxq->used);
1847 if (rxo->rx_post_starved)
1848 rxo->rx_post_starved = false;
1849 be_rxq_notify(adapter, rxq->id, posted);
1850 } else if (atomic_read(&rxq->used) == 0) {
1851 /* Let be_worker replenish when memory is available */
1852 rxo->rx_post_starved = true;
1856 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1858 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1860 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1864 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1866 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1868 queue_tail_inc(tx_cq);
1872 static u16 be_tx_compl_process(struct be_adapter *adapter,
1873 struct be_tx_obj *txo, u16 last_index)
1875 struct be_queue_info *txq = &txo->q;
1876 struct be_eth_wrb *wrb;
1877 struct sk_buff **sent_skbs = txo->sent_skb_list;
1878 struct sk_buff *sent_skb;
1879 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1880 bool unmap_skb_hdr = true;
1882 sent_skb = sent_skbs[txq->tail];
1884 sent_skbs[txq->tail] = NULL;
1886 /* skip header wrb */
1887 queue_tail_inc(txq);
1890 cur_index = txq->tail;
1891 wrb = queue_tail_node(txq);
1892 unmap_tx_frag(&adapter->pdev->dev, wrb,
1893 (unmap_skb_hdr && skb_headlen(sent_skb)));
1894 unmap_skb_hdr = false;
1897 queue_tail_inc(txq);
1898 } while (cur_index != last_index);
1900 kfree_skb(sent_skb);
1904 /* Return the number of events in the event queue */
1905 static inline int events_get(struct be_eq_obj *eqo)
1907 struct be_eq_entry *eqe;
1911 eqe = queue_tail_node(&eqo->q);
1918 queue_tail_inc(&eqo->q);
1924 /* Leaves the EQ is disarmed state */
1925 static void be_eq_clean(struct be_eq_obj *eqo)
1927 int num = events_get(eqo);
1929 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1932 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1934 struct be_rx_page_info *page_info;
1935 struct be_queue_info *rxq = &rxo->q;
1936 struct be_queue_info *rx_cq = &rxo->cq;
1937 struct be_rx_compl_info *rxcp;
1938 struct be_adapter *adapter = rxo->adapter;
1941 /* Consume pending rx completions.
1942 * Wait for the flush completion (identified by zero num_rcvd)
1943 * to arrive. Notify CQ even when there are no more CQ entries
1944 * for HW to flush partially coalesced CQ entries.
1945 * In Lancer, there is no need to wait for flush compl.
1948 rxcp = be_rx_compl_get(rxo);
1950 if (lancer_chip(adapter))
1953 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1954 dev_warn(&adapter->pdev->dev,
1955 "did not receive flush compl\n");
1958 be_cq_notify(adapter, rx_cq->id, true, 0);
1961 be_rx_compl_discard(rxo, rxcp);
1962 be_cq_notify(adapter, rx_cq->id, false, 1);
1963 if (rxcp->num_rcvd == 0)
1968 /* After cleanup, leave the CQ in unarmed state */
1969 be_cq_notify(adapter, rx_cq->id, false, 0);
1971 /* Then free posted rx buffers that were not used */
1972 while (atomic_read(&rxq->used) > 0) {
1973 page_info = get_rx_page_info(rxo);
1974 put_page(page_info->page);
1975 memset(page_info, 0, sizeof(*page_info));
1977 BUG_ON(atomic_read(&rxq->used));
1978 rxq->tail = rxq->head = 0;
1981 static void be_tx_compl_clean(struct be_adapter *adapter)
1983 struct be_tx_obj *txo;
1984 struct be_queue_info *txq;
1985 struct be_eth_tx_compl *txcp;
1986 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1987 struct sk_buff *sent_skb;
1989 int i, pending_txqs;
1991 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1993 pending_txqs = adapter->num_tx_qs;
1995 for_all_tx_queues(adapter, txo, i) {
1997 while ((txcp = be_tx_compl_get(&txo->cq))) {
1999 AMAP_GET_BITS(struct amap_eth_tx_compl,
2001 num_wrbs += be_tx_compl_process(adapter, txo,
2006 be_cq_notify(adapter, txo->cq.id, false, cmpl);
2007 atomic_sub(num_wrbs, &txq->used);
2011 if (atomic_read(&txq->used) == 0)
2015 if (pending_txqs == 0 || ++timeo > 200)
2021 for_all_tx_queues(adapter, txo, i) {
2023 if (atomic_read(&txq->used))
2024 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
2025 atomic_read(&txq->used));
2027 /* free posted tx for which compls will never arrive */
2028 while (atomic_read(&txq->used)) {
2029 sent_skb = txo->sent_skb_list[txq->tail];
2030 end_idx = txq->tail;
2031 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2033 index_adv(&end_idx, num_wrbs - 1, txq->len);
2034 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2035 atomic_sub(num_wrbs, &txq->used);
2040 static void be_evt_queues_destroy(struct be_adapter *adapter)
2042 struct be_eq_obj *eqo;
2045 for_all_evt_queues(adapter, eqo, i) {
2046 if (eqo->q.created) {
2048 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2049 napi_hash_del(&eqo->napi);
2050 netif_napi_del(&eqo->napi);
2052 be_queue_free(adapter, &eqo->q);
2056 static int be_evt_queues_create(struct be_adapter *adapter)
2058 struct be_queue_info *eq;
2059 struct be_eq_obj *eqo;
2060 struct be_aic_obj *aic;
2063 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2064 adapter->cfg_num_qs);
2066 for_all_evt_queues(adapter, eqo, i) {
2067 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2069 napi_hash_add(&eqo->napi);
2070 aic = &adapter->aic_obj[i];
2071 eqo->adapter = adapter;
2072 eqo->tx_budget = BE_TX_BUDGET;
2074 aic->max_eqd = BE_MAX_EQD;
2078 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2079 sizeof(struct be_eq_entry));
2083 rc = be_cmd_eq_create(adapter, eqo);
2090 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2092 struct be_queue_info *q;
2094 q = &adapter->mcc_obj.q;
2096 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2097 be_queue_free(adapter, q);
2099 q = &adapter->mcc_obj.cq;
2101 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2102 be_queue_free(adapter, q);
2105 /* Must be called only after TX qs are created as MCC shares TX EQ */
2106 static int be_mcc_queues_create(struct be_adapter *adapter)
2108 struct be_queue_info *q, *cq;
2110 cq = &adapter->mcc_obj.cq;
2111 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2112 sizeof(struct be_mcc_compl)))
2115 /* Use the default EQ for MCC completions */
2116 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2119 q = &adapter->mcc_obj.q;
2120 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2121 goto mcc_cq_destroy;
2123 if (be_cmd_mccq_create(adapter, q, cq))
2129 be_queue_free(adapter, q);
2131 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2133 be_queue_free(adapter, cq);
2138 static void be_tx_queues_destroy(struct be_adapter *adapter)
2140 struct be_queue_info *q;
2141 struct be_tx_obj *txo;
2144 for_all_tx_queues(adapter, txo, i) {
2147 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2148 be_queue_free(adapter, q);
2152 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2153 be_queue_free(adapter, q);
2157 static int be_tx_qs_create(struct be_adapter *adapter)
2159 struct be_queue_info *cq, *eq;
2160 struct be_tx_obj *txo;
2163 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2165 for_all_tx_queues(adapter, txo, i) {
2167 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2168 sizeof(struct be_eth_tx_compl));
2172 u64_stats_init(&txo->stats.sync);
2173 u64_stats_init(&txo->stats.sync_compl);
2175 /* If num_evt_qs is less than num_tx_qs, then more than
2176 * one txq share an eq
2178 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2179 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2183 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2184 sizeof(struct be_eth_wrb));
2188 status = be_cmd_txq_create(adapter, txo);
2193 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2194 adapter->num_tx_qs);
2198 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2200 struct be_queue_info *q;
2201 struct be_rx_obj *rxo;
2204 for_all_rx_queues(adapter, rxo, i) {
2207 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2208 be_queue_free(adapter, q);
2212 static int be_rx_cqs_create(struct be_adapter *adapter)
2214 struct be_queue_info *eq, *cq;
2215 struct be_rx_obj *rxo;
2218 /* We can create as many RSS rings as there are EQs. */
2219 adapter->num_rx_qs = adapter->num_evt_qs;
2221 /* We'll use RSS only if atleast 2 RSS rings are supported.
2222 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2224 if (adapter->num_rx_qs > 1)
2225 adapter->num_rx_qs++;
2227 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2228 for_all_rx_queues(adapter, rxo, i) {
2229 rxo->adapter = adapter;
2231 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2232 sizeof(struct be_eth_rx_compl));
2236 u64_stats_init(&rxo->stats.sync);
2237 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2238 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2243 dev_info(&adapter->pdev->dev,
2244 "created %d RSS queue(s) and 1 default RX queue\n",
2245 adapter->num_rx_qs - 1);
2249 static irqreturn_t be_intx(int irq, void *dev)
2251 struct be_eq_obj *eqo = dev;
2252 struct be_adapter *adapter = eqo->adapter;
2255 /* IRQ is not expected when NAPI is scheduled as the EQ
2256 * will not be armed.
2257 * But, this can happen on Lancer INTx where it takes
2258 * a while to de-assert INTx or in BE2 where occasionaly
2259 * an interrupt may be raised even when EQ is unarmed.
2260 * If NAPI is already scheduled, then counting & notifying
2261 * events will orphan them.
2263 if (napi_schedule_prep(&eqo->napi)) {
2264 num_evts = events_get(eqo);
2265 __napi_schedule(&eqo->napi);
2267 eqo->spurious_intr = 0;
2269 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2271 /* Return IRQ_HANDLED only for the the first spurious intr
2272 * after a valid intr to stop the kernel from branding
2273 * this irq as a bad one!
2275 if (num_evts || eqo->spurious_intr++ == 0)
2281 static irqreturn_t be_msix(int irq, void *dev)
2283 struct be_eq_obj *eqo = dev;
2285 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2286 napi_schedule(&eqo->napi);
2290 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2292 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2295 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2296 int budget, int polling)
2298 struct be_adapter *adapter = rxo->adapter;
2299 struct be_queue_info *rx_cq = &rxo->cq;
2300 struct be_rx_compl_info *rxcp;
2303 for (work_done = 0; work_done < budget; work_done++) {
2304 rxcp = be_rx_compl_get(rxo);
2308 /* Is it a flush compl that has no data */
2309 if (unlikely(rxcp->num_rcvd == 0))
2312 /* Discard compl with partial DMA Lancer B0 */
2313 if (unlikely(!rxcp->pkt_size)) {
2314 be_rx_compl_discard(rxo, rxcp);
2318 /* On BE drop pkts that arrive due to imperfect filtering in
2319 * promiscuous mode on some skews
2321 if (unlikely(rxcp->port != adapter->port_num &&
2322 !lancer_chip(adapter))) {
2323 be_rx_compl_discard(rxo, rxcp);
2327 /* Don't do gro when we're busy_polling */
2328 if (do_gro(rxcp) && polling != BUSY_POLLING)
2329 be_rx_compl_process_gro(rxo, napi, rxcp);
2331 be_rx_compl_process(rxo, napi, rxcp);
2334 be_rx_stats_update(rxo, rxcp);
2338 be_cq_notify(adapter, rx_cq->id, true, work_done);
2340 /* When an rx-obj gets into post_starved state, just
2341 * let be_worker do the posting.
2343 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2344 !rxo->rx_post_starved)
2345 be_post_rx_frags(rxo, GFP_ATOMIC);
2351 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2352 int budget, int idx)
2354 struct be_eth_tx_compl *txcp;
2355 int num_wrbs = 0, work_done;
2357 for (work_done = 0; work_done < budget; work_done++) {
2358 txcp = be_tx_compl_get(&txo->cq);
2361 num_wrbs += be_tx_compl_process(adapter, txo,
2362 AMAP_GET_BITS(struct amap_eth_tx_compl,
2367 be_cq_notify(adapter, txo->cq.id, true, work_done);
2368 atomic_sub(num_wrbs, &txo->q.used);
2370 /* As Tx wrbs have been freed up, wake up netdev queue
2371 * if it was stopped due to lack of tx wrbs. */
2372 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2373 atomic_read(&txo->q.used) < txo->q.len / 2) {
2374 netif_wake_subqueue(adapter->netdev, idx);
2377 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2378 tx_stats(txo)->tx_compl += work_done;
2379 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2381 return (work_done < budget); /* Done */
2384 int be_poll(struct napi_struct *napi, int budget)
2386 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2387 struct be_adapter *adapter = eqo->adapter;
2388 int max_work = 0, work, i, num_evts;
2389 struct be_rx_obj *rxo;
2392 num_evts = events_get(eqo);
2394 /* Process all TXQs serviced by this EQ */
2395 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2396 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2402 if (be_lock_napi(eqo)) {
2403 /* This loop will iterate twice for EQ0 in which
2404 * completions of the last RXQ (default one) are also processed
2405 * For other EQs the loop iterates only once
2407 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2408 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2409 max_work = max(work, max_work);
2411 be_unlock_napi(eqo);
2416 if (is_mcc_eqo(eqo))
2417 be_process_mcc(adapter);
2419 if (max_work < budget) {
2420 napi_complete(napi);
2421 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2423 /* As we'll continue in polling mode, count and clear events */
2424 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2429 #ifdef CONFIG_NET_RX_BUSY_POLL
2430 static int be_busy_poll(struct napi_struct *napi)
2432 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2433 struct be_adapter *adapter = eqo->adapter;
2434 struct be_rx_obj *rxo;
2437 if (!be_lock_busy_poll(eqo))
2438 return LL_FLUSH_BUSY;
2440 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2441 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2446 be_unlock_busy_poll(eqo);
2451 void be_detect_error(struct be_adapter *adapter)
2453 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2454 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2456 bool error_detected = false;
2457 struct device *dev = &adapter->pdev->dev;
2458 struct net_device *netdev = adapter->netdev;
2460 if (be_hw_error(adapter))
2463 if (lancer_chip(adapter)) {
2464 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2465 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2466 sliport_err1 = ioread32(adapter->db +
2467 SLIPORT_ERROR1_OFFSET);
2468 sliport_err2 = ioread32(adapter->db +
2469 SLIPORT_ERROR2_OFFSET);
2470 adapter->hw_error = true;
2471 /* Do not log error messages if its a FW reset */
2472 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
2473 sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
2474 dev_info(dev, "Firmware update in progress\n");
2476 error_detected = true;
2477 dev_err(dev, "Error detected in the card\n");
2478 dev_err(dev, "ERR: sliport status 0x%x\n",
2480 dev_err(dev, "ERR: sliport error1 0x%x\n",
2482 dev_err(dev, "ERR: sliport error2 0x%x\n",
2487 pci_read_config_dword(adapter->pdev,
2488 PCICFG_UE_STATUS_LOW, &ue_lo);
2489 pci_read_config_dword(adapter->pdev,
2490 PCICFG_UE_STATUS_HIGH, &ue_hi);
2491 pci_read_config_dword(adapter->pdev,
2492 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2493 pci_read_config_dword(adapter->pdev,
2494 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2496 ue_lo = (ue_lo & ~ue_lo_mask);
2497 ue_hi = (ue_hi & ~ue_hi_mask);
2499 /* On certain platforms BE hardware can indicate spurious UEs.
2500 * Allow HW to stop working completely in case of a real UE.
2501 * Hence not setting the hw_error for UE detection.
2504 if (ue_lo || ue_hi) {
2505 error_detected = true;
2507 "Unrecoverable Error detected in the adapter");
2508 dev_err(dev, "Please reboot server to recover");
2509 if (skyhawk_chip(adapter))
2510 adapter->hw_error = true;
2511 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2513 dev_err(dev, "UE: %s bit set\n",
2514 ue_status_low_desc[i]);
2516 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2518 dev_err(dev, "UE: %s bit set\n",
2519 ue_status_hi_desc[i]);
2524 netif_carrier_off(netdev);
2527 static void be_msix_disable(struct be_adapter *adapter)
2529 if (msix_enabled(adapter)) {
2530 pci_disable_msix(adapter->pdev);
2531 adapter->num_msix_vec = 0;
2532 adapter->num_msix_roce_vec = 0;
2536 static int be_msix_enable(struct be_adapter *adapter)
2539 struct device *dev = &adapter->pdev->dev;
2541 /* If RoCE is supported, program the max number of NIC vectors that
2542 * may be configured via set-channels, along with vectors needed for
2543 * RoCe. Else, just program the number we'll use initially.
2545 if (be_roce_supported(adapter))
2546 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2547 2 * num_online_cpus());
2549 num_vec = adapter->cfg_num_qs;
2551 for (i = 0; i < num_vec; i++)
2552 adapter->msix_entries[i].entry = i;
2554 num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
2555 MIN_MSIX_VECTORS, num_vec);
2559 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2560 adapter->num_msix_roce_vec = num_vec / 2;
2561 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2562 adapter->num_msix_roce_vec);
2565 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2567 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2568 adapter->num_msix_vec);
2572 dev_warn(dev, "MSIx enable failed\n");
2574 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2575 if (!be_physfn(adapter))
2580 static inline int be_msix_vec_get(struct be_adapter *adapter,
2581 struct be_eq_obj *eqo)
2583 return adapter->msix_entries[eqo->msix_idx].vector;
2586 static int be_msix_register(struct be_adapter *adapter)
2588 struct net_device *netdev = adapter->netdev;
2589 struct be_eq_obj *eqo;
2592 for_all_evt_queues(adapter, eqo, i) {
2593 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2594 vec = be_msix_vec_get(adapter, eqo);
2595 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2602 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2603 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2604 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2606 be_msix_disable(adapter);
2610 static int be_irq_register(struct be_adapter *adapter)
2612 struct net_device *netdev = adapter->netdev;
2615 if (msix_enabled(adapter)) {
2616 status = be_msix_register(adapter);
2619 /* INTx is not supported for VF */
2620 if (!be_physfn(adapter))
2624 /* INTx: only the first EQ is used */
2625 netdev->irq = adapter->pdev->irq;
2626 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2627 &adapter->eq_obj[0]);
2629 dev_err(&adapter->pdev->dev,
2630 "INTx request IRQ failed - err %d\n", status);
2634 adapter->isr_registered = true;
2638 static void be_irq_unregister(struct be_adapter *adapter)
2640 struct net_device *netdev = adapter->netdev;
2641 struct be_eq_obj *eqo;
2644 if (!adapter->isr_registered)
2648 if (!msix_enabled(adapter)) {
2649 free_irq(netdev->irq, &adapter->eq_obj[0]);
2654 for_all_evt_queues(adapter, eqo, i)
2655 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2658 adapter->isr_registered = false;
2661 static void be_rx_qs_destroy(struct be_adapter *adapter)
2663 struct be_queue_info *q;
2664 struct be_rx_obj *rxo;
2667 for_all_rx_queues(adapter, rxo, i) {
2670 be_cmd_rxq_destroy(adapter, q);
2671 be_rx_cq_clean(rxo);
2673 be_queue_free(adapter, q);
2677 static int be_close(struct net_device *netdev)
2679 struct be_adapter *adapter = netdev_priv(netdev);
2680 struct be_eq_obj *eqo;
2683 be_roce_dev_close(adapter);
2685 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2686 for_all_evt_queues(adapter, eqo, i) {
2687 napi_disable(&eqo->napi);
2688 be_disable_busy_poll(eqo);
2690 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2693 be_async_mcc_disable(adapter);
2695 /* Wait for all pending tx completions to arrive so that
2696 * all tx skbs are freed.
2698 netif_tx_disable(netdev);
2699 be_tx_compl_clean(adapter);
2701 be_rx_qs_destroy(adapter);
2703 for (i = 1; i < (adapter->uc_macs + 1); i++)
2704 be_cmd_pmac_del(adapter, adapter->if_handle,
2705 adapter->pmac_id[i], 0);
2706 adapter->uc_macs = 0;
2708 for_all_evt_queues(adapter, eqo, i) {
2709 if (msix_enabled(adapter))
2710 synchronize_irq(be_msix_vec_get(adapter, eqo));
2712 synchronize_irq(netdev->irq);
2716 be_irq_unregister(adapter);
2721 static int be_rx_qs_create(struct be_adapter *adapter)
2723 struct be_rx_obj *rxo;
2727 for_all_rx_queues(adapter, rxo, i) {
2728 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2729 sizeof(struct be_eth_rx_d));
2734 /* The FW would like the default RXQ to be created first */
2735 rxo = default_rxo(adapter);
2736 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2737 adapter->if_handle, false, &rxo->rss_id);
2741 for_all_rss_queues(adapter, rxo, i) {
2742 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2743 rx_frag_size, adapter->if_handle,
2744 true, &rxo->rss_id);
2749 if (be_multi_rxq(adapter)) {
2750 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2751 for_all_rss_queues(adapter, rxo, i) {
2754 rsstable[j + i] = rxo->rss_id;
2757 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2758 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2760 if (!BEx_chip(adapter))
2761 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2762 RSS_ENABLE_UDP_IPV6;
2764 /* Disable RSS, if only default RX Q is created */
2765 adapter->rss_flags = RSS_ENABLE_NONE;
2768 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2771 adapter->rss_flags = RSS_ENABLE_NONE;
2775 /* First time posting */
2776 for_all_rx_queues(adapter, rxo, i)
2777 be_post_rx_frags(rxo, GFP_KERNEL);
2781 static int be_open(struct net_device *netdev)
2783 struct be_adapter *adapter = netdev_priv(netdev);
2784 struct be_eq_obj *eqo;
2785 struct be_rx_obj *rxo;
2786 struct be_tx_obj *txo;
2790 status = be_rx_qs_create(adapter);
2794 status = be_irq_register(adapter);
2798 for_all_rx_queues(adapter, rxo, i)
2799 be_cq_notify(adapter, rxo->cq.id, true, 0);
2801 for_all_tx_queues(adapter, txo, i)
2802 be_cq_notify(adapter, txo->cq.id, true, 0);
2804 be_async_mcc_enable(adapter);
2806 for_all_evt_queues(adapter, eqo, i) {
2807 napi_enable(&eqo->napi);
2808 be_enable_busy_poll(eqo);
2809 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2811 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2813 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2815 be_link_status_update(adapter, link_status);
2817 netif_tx_start_all_queues(netdev);
2818 be_roce_dev_open(adapter);
2821 be_close(adapter->netdev);
2825 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2827 struct be_dma_mem cmd;
2831 memset(mac, 0, ETH_ALEN);
2833 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2834 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2840 status = pci_write_config_dword(adapter->pdev,
2841 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2843 dev_err(&adapter->pdev->dev,
2844 "Could not enable Wake-on-lan\n");
2845 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2849 status = be_cmd_enable_magic_wol(adapter,
2850 adapter->netdev->dev_addr, &cmd);
2851 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2852 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2854 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2855 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2856 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2859 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2864 * Generate a seed MAC address from the PF MAC Address using jhash.
2865 * MAC Address for VFs are assigned incrementally starting from the seed.
2866 * These addresses are programmed in the ASIC by the PF and the VF driver
2867 * queries for the MAC address during its probe.
2869 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2874 struct be_vf_cfg *vf_cfg;
2876 be_vf_eth_addr_generate(adapter, mac);
2878 for_all_vfs(adapter, vf_cfg, vf) {
2879 if (BEx_chip(adapter))
2880 status = be_cmd_pmac_add(adapter, mac,
2882 &vf_cfg->pmac_id, vf + 1);
2884 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2888 dev_err(&adapter->pdev->dev,
2889 "Mac address assignment failed for VF %d\n", vf);
2891 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2898 static int be_vfs_mac_query(struct be_adapter *adapter)
2902 struct be_vf_cfg *vf_cfg;
2904 for_all_vfs(adapter, vf_cfg, vf) {
2905 status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
2906 mac, vf_cfg->if_handle,
2910 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2915 static void be_vf_clear(struct be_adapter *adapter)
2917 struct be_vf_cfg *vf_cfg;
2920 if (pci_vfs_assigned(adapter->pdev)) {
2921 dev_warn(&adapter->pdev->dev,
2922 "VFs are assigned to VMs: not disabling VFs\n");
2926 pci_disable_sriov(adapter->pdev);
2928 for_all_vfs(adapter, vf_cfg, vf) {
2929 if (BEx_chip(adapter))
2930 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2931 vf_cfg->pmac_id, vf + 1);
2933 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2936 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2939 kfree(adapter->vf_cfg);
2940 adapter->num_vfs = 0;
2943 static void be_clear_queues(struct be_adapter *adapter)
2945 be_mcc_queues_destroy(adapter);
2946 be_rx_cqs_destroy(adapter);
2947 be_tx_queues_destroy(adapter);
2948 be_evt_queues_destroy(adapter);
2951 static void be_cancel_worker(struct be_adapter *adapter)
2953 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2954 cancel_delayed_work_sync(&adapter->work);
2955 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2959 static void be_mac_clear(struct be_adapter *adapter)
2963 if (adapter->pmac_id) {
2964 for (i = 0; i < (adapter->uc_macs + 1); i++)
2965 be_cmd_pmac_del(adapter, adapter->if_handle,
2966 adapter->pmac_id[i], 0);
2967 adapter->uc_macs = 0;
2969 kfree(adapter->pmac_id);
2970 adapter->pmac_id = NULL;
2974 static int be_clear(struct be_adapter *adapter)
2976 be_cancel_worker(adapter);
2978 if (sriov_enabled(adapter))
2979 be_vf_clear(adapter);
2981 /* delete the primary mac along with the uc-mac list */
2982 be_mac_clear(adapter);
2984 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2986 be_clear_queues(adapter);
2988 be_msix_disable(adapter);
2992 static int be_vfs_if_create(struct be_adapter *adapter)
2994 struct be_resources res = {0};
2995 struct be_vf_cfg *vf_cfg;
2996 u32 cap_flags, en_flags, vf;
2999 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3000 BE_IF_FLAGS_MULTICAST;
3002 for_all_vfs(adapter, vf_cfg, vf) {
3003 if (!BE3_chip(adapter)) {
3004 status = be_cmd_get_profile_config(adapter, &res,
3007 cap_flags = res.if_cap_flags;
3010 /* If a FW profile exists, then cap_flags are updated */
3011 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
3012 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
3013 status = be_cmd_if_create(adapter, cap_flags, en_flags,
3014 &vf_cfg->if_handle, vf + 1);
3022 static int be_vf_setup_init(struct be_adapter *adapter)
3024 struct be_vf_cfg *vf_cfg;
3027 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
3029 if (!adapter->vf_cfg)
3032 for_all_vfs(adapter, vf_cfg, vf) {
3033 vf_cfg->if_handle = -1;
3034 vf_cfg->pmac_id = -1;
3039 static int be_vf_setup(struct be_adapter *adapter)
3041 struct device *dev = &adapter->pdev->dev;
3042 struct be_vf_cfg *vf_cfg;
3043 int status, old_vfs, vf;
3047 old_vfs = pci_num_vf(adapter->pdev);
3049 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3050 if (old_vfs != num_vfs)
3051 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3052 adapter->num_vfs = old_vfs;
3054 if (num_vfs > be_max_vfs(adapter))
3055 dev_info(dev, "Device supports %d VFs and not %d\n",
3056 be_max_vfs(adapter), num_vfs);
3057 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3058 if (!adapter->num_vfs)
3062 status = be_vf_setup_init(adapter);
3067 for_all_vfs(adapter, vf_cfg, vf) {
3068 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3073 status = be_vfs_if_create(adapter);
3079 status = be_vfs_mac_query(adapter);
3083 status = be_vf_eth_addr_config(adapter);
3088 for_all_vfs(adapter, vf_cfg, vf) {
3089 /* Allow VFs to programs MAC/VLAN filters */
3090 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3091 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3092 status = be_cmd_set_fn_privileges(adapter,
3097 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3101 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
3102 * Allow full available bandwidth
3104 if (BE3_chip(adapter) && !old_vfs)
3105 be_cmd_set_qos(adapter, 1000, vf+1);
3107 status = be_cmd_link_status_query(adapter, &lnk_speed,
3110 vf_cfg->tx_rate = lnk_speed;
3113 be_cmd_enable_vf(adapter, vf + 1);
3117 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3119 dev_err(dev, "SRIOV enable failed\n");
3120 adapter->num_vfs = 0;
3126 dev_err(dev, "VF setup failed\n");
3127 be_vf_clear(adapter);
3131 /* Converting function_mode bits on BE3 to SH mc_type enums */
3133 static u8 be_convert_mc_type(u32 function_mode)
3135 if (function_mode & VNIC_MODE && function_mode & FLEX10_MODE)
3137 else if (function_mode & FLEX10_MODE)
3139 else if (function_mode & VNIC_MODE)
3141 else if (function_mode & UMC_ENABLED)
3147 /* On BE2/BE3 FW does not suggest the supported limits */
3148 static void BEx_get_resources(struct be_adapter *adapter,
3149 struct be_resources *res)
3151 struct pci_dev *pdev = adapter->pdev;
3152 bool use_sriov = false;
3155 if (be_physfn(adapter) && BE3_chip(adapter)) {
3156 be_cmd_get_profile_config(adapter, res, 0);
3157 /* Some old versions of BE3 FW don't report max_vfs value */
3158 if (res->max_vfs == 0) {
3159 max_vfs = pci_sriov_get_totalvfs(pdev);
3160 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3162 use_sriov = res->max_vfs && sriov_want(adapter);
3165 if (be_physfn(adapter))
3166 res->max_uc_mac = BE_UC_PMAC_COUNT;
3168 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3170 adapter->mc_type = be_convert_mc_type(adapter->function_mode);
3172 if (be_is_mc(adapter)) {
3173 /* Assuming that there are 4 channels per port,
3174 * when multi-channel is enabled
3176 if (be_is_qnq_mode(adapter))
3177 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3179 /* In a non-qnq multichannel mode, the pvid
3180 * takes up one vlan entry
3182 res->max_vlans = (BE_NUM_VLANS_SUPPORTED / 4) - 1;
3184 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3187 res->max_mcast_mac = BE_MAX_MC;
3189 /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
3190 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
3191 !be_physfn(adapter) || (adapter->port_num > 1))
3194 res->max_tx_qs = BE3_MAX_TX_QS;
3196 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3197 !use_sriov && be_physfn(adapter))
3198 res->max_rss_qs = (adapter->be3_native) ?
3199 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3200 res->max_rx_qs = res->max_rss_qs + 1;
3202 if (be_physfn(adapter))
3203 res->max_evt_qs = (res->max_vfs > 0) ?
3204 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
3206 res->max_evt_qs = 1;
3208 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3209 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3210 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3213 static void be_setup_init(struct be_adapter *adapter)
3215 adapter->vlan_prio_bmap = 0xff;
3216 adapter->phy.link_speed = -1;
3217 adapter->if_handle = -1;
3218 adapter->be3_native = false;
3219 adapter->promiscuous = false;
3220 if (be_physfn(adapter))
3221 adapter->cmd_privileges = MAX_PRIVILEGES;
3223 adapter->cmd_privileges = MIN_PRIVILEGES;
3226 static int be_get_resources(struct be_adapter *adapter)
3228 struct device *dev = &adapter->pdev->dev;
3229 struct be_resources res = {0};
3232 if (BEx_chip(adapter)) {
3233 BEx_get_resources(adapter, &res);
3237 /* For Lancer, SH etc read per-function resource limits from FW.
3238 * GET_FUNC_CONFIG returns per function guaranteed limits.
3239 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3241 if (!BEx_chip(adapter)) {
3242 status = be_cmd_get_func_config(adapter, &res);
3246 /* If RoCE may be enabled stash away half the EQs for RoCE */
3247 if (be_roce_supported(adapter))
3248 res.max_evt_qs /= 2;
3251 if (be_physfn(adapter)) {
3252 status = be_cmd_get_profile_config(adapter, &res, 0);
3255 adapter->res.max_vfs = res.max_vfs;
3258 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3259 be_max_txqs(adapter), be_max_rxqs(adapter),
3260 be_max_rss(adapter), be_max_eqs(adapter),
3261 be_max_vfs(adapter));
3262 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3263 be_max_uc(adapter), be_max_mc(adapter),
3264 be_max_vlans(adapter));
3270 /* Routine to query per function resource limits */
3271 static int be_get_config(struct be_adapter *adapter)
3276 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3277 &adapter->function_mode,
3278 &adapter->function_caps,
3279 &adapter->asic_rev);
3283 if (be_physfn(adapter)) {
3284 status = be_cmd_get_active_profile(adapter, &profile_id);
3286 dev_info(&adapter->pdev->dev,
3287 "Using profile 0x%x\n", profile_id);
3290 status = be_get_resources(adapter);
3294 /* primary mac needs 1 pmac entry */
3295 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3297 if (!adapter->pmac_id)
3300 /* Sanitize cfg_num_qs based on HW and platform limits */
3301 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3306 static int be_mac_setup(struct be_adapter *adapter)
3311 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3312 status = be_cmd_get_perm_mac(adapter, mac);
3316 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3317 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3319 /* Maybe the HW was reset; dev_addr must be re-programmed */
3320 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3323 /* For BE3-R VFs, the PF programs the initial MAC address */
3324 if (!(BEx_chip(adapter) && be_virtfn(adapter)))
3325 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3326 &adapter->pmac_id[0], 0);
3330 static void be_schedule_worker(struct be_adapter *adapter)
3332 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3333 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3336 static int be_setup_queues(struct be_adapter *adapter)
3338 struct net_device *netdev = adapter->netdev;
3341 status = be_evt_queues_create(adapter);
3345 status = be_tx_qs_create(adapter);
3349 status = be_rx_cqs_create(adapter);
3353 status = be_mcc_queues_create(adapter);
3357 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3361 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3367 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3371 int be_update_queues(struct be_adapter *adapter)
3373 struct net_device *netdev = adapter->netdev;
3376 if (netif_running(netdev))
3379 be_cancel_worker(adapter);
3381 /* If any vectors have been shared with RoCE we cannot re-program
3384 if (!adapter->num_msix_roce_vec)
3385 be_msix_disable(adapter);
3387 be_clear_queues(adapter);
3389 if (!msix_enabled(adapter)) {
3390 status = be_msix_enable(adapter);
3395 status = be_setup_queues(adapter);
3399 be_schedule_worker(adapter);
3401 if (netif_running(netdev))
3402 status = be_open(netdev);
3407 static int be_setup(struct be_adapter *adapter)
3409 struct device *dev = &adapter->pdev->dev;
3410 u32 tx_fc, rx_fc, en_flags;
3413 be_setup_init(adapter);
3415 if (!lancer_chip(adapter))
3416 be_cmd_req_native_mode(adapter);
3418 status = be_get_config(adapter);
3422 status = be_msix_enable(adapter);
3426 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3427 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3428 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3429 en_flags |= BE_IF_FLAGS_RSS;
3430 en_flags = en_flags & be_if_cap_flags(adapter);
3431 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3432 &adapter->if_handle, 0);
3436 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3438 status = be_setup_queues(adapter);
3443 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3445 status = be_mac_setup(adapter);
3449 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3451 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
3452 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
3454 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
3457 if (adapter->vlans_added)
3458 be_vid_config(adapter);
3460 be_set_rx_mode(adapter->netdev);
3462 be_cmd_get_acpi_wol_cap(adapter);
3464 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3466 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3467 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3470 if (sriov_want(adapter)) {
3471 if (be_max_vfs(adapter))
3472 be_vf_setup(adapter);
3474 dev_warn(dev, "device doesn't support SRIOV\n");
3477 status = be_cmd_get_phy_info(adapter);
3478 if (!status && be_pause_supported(adapter))
3479 adapter->phy.fc_autoneg = 1;
3481 be_schedule_worker(adapter);
3488 #ifdef CONFIG_NET_POLL_CONTROLLER
3489 static void be_netpoll(struct net_device *netdev)
3491 struct be_adapter *adapter = netdev_priv(netdev);
3492 struct be_eq_obj *eqo;
3495 for_all_evt_queues(adapter, eqo, i) {
3496 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3497 napi_schedule(&eqo->napi);
3504 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3505 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3507 static bool be_flash_redboot(struct be_adapter *adapter,
3508 const u8 *p, u32 img_start, int image_size,
3515 crc_offset = hdr_size + img_start + image_size - 4;
3519 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3522 dev_err(&adapter->pdev->dev,
3523 "could not get crc from flash, not flashing redboot\n");
3527 /*update redboot only if crc does not match*/
3528 if (!memcmp(flashed_crc, p, 4))
3534 static bool phy_flashing_required(struct be_adapter *adapter)
3536 return (adapter->phy.phy_type == TN_8022 &&
3537 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3540 static bool is_comp_in_ufi(struct be_adapter *adapter,
3541 struct flash_section_info *fsec, int type)
3543 int i = 0, img_type = 0;
3544 struct flash_section_info_g2 *fsec_g2 = NULL;
3546 if (BE2_chip(adapter))
3547 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3549 for (i = 0; i < MAX_FLASH_COMP; i++) {
3551 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3553 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3555 if (img_type == type)
3562 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3564 const struct firmware *fw)
3566 struct flash_section_info *fsec = NULL;
3567 const u8 *p = fw->data;
3570 while (p < (fw->data + fw->size)) {
3571 fsec = (struct flash_section_info *)p;
3572 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3579 static int be_flash(struct be_adapter *adapter, const u8 *img,
3580 struct be_dma_mem *flash_cmd, int optype, int img_size)
3582 u32 total_bytes = 0, flash_op, num_bytes = 0;
3584 struct be_cmd_write_flashrom *req = flash_cmd->va;
3586 total_bytes = img_size;
3587 while (total_bytes) {
3588 num_bytes = min_t(u32, 32*1024, total_bytes);
3590 total_bytes -= num_bytes;
3593 if (optype == OPTYPE_PHY_FW)
3594 flash_op = FLASHROM_OPER_PHY_FLASH;
3596 flash_op = FLASHROM_OPER_FLASH;
3598 if (optype == OPTYPE_PHY_FW)
3599 flash_op = FLASHROM_OPER_PHY_SAVE;
3601 flash_op = FLASHROM_OPER_SAVE;
3604 memcpy(req->data_buf, img, num_bytes);
3606 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3607 flash_op, num_bytes);
3609 if (status == ILLEGAL_IOCTL_REQ &&
3610 optype == OPTYPE_PHY_FW)
3612 dev_err(&adapter->pdev->dev,
3613 "cmd to write to flash rom failed.\n");
3620 /* For BE2, BE3 and BE3-R */
3621 static int be_flash_BEx(struct be_adapter *adapter,
3622 const struct firmware *fw,
3623 struct be_dma_mem *flash_cmd,
3627 int status = 0, i, filehdr_size = 0;
3628 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3629 const u8 *p = fw->data;
3630 const struct flash_comp *pflashcomp;
3631 int num_comp, redboot;
3632 struct flash_section_info *fsec = NULL;
3634 struct flash_comp gen3_flash_types[] = {
3635 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3636 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3637 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3638 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3639 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3640 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3641 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3642 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3643 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3644 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3645 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3646 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3647 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3648 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3649 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3650 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3651 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3652 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3653 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3654 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3657 struct flash_comp gen2_flash_types[] = {
3658 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3659 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3660 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3661 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3662 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3663 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3664 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3665 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3666 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3667 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3668 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3669 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3670 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3671 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3672 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3673 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3676 if (BE3_chip(adapter)) {
3677 pflashcomp = gen3_flash_types;
3678 filehdr_size = sizeof(struct flash_file_hdr_g3);
3679 num_comp = ARRAY_SIZE(gen3_flash_types);
3681 pflashcomp = gen2_flash_types;
3682 filehdr_size = sizeof(struct flash_file_hdr_g2);
3683 num_comp = ARRAY_SIZE(gen2_flash_types);
3686 /* Get flash section info*/
3687 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3689 dev_err(&adapter->pdev->dev,
3690 "Invalid Cookie. UFI corrupted ?\n");
3693 for (i = 0; i < num_comp; i++) {
3694 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3697 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3698 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3701 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3702 !phy_flashing_required(adapter))
3705 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3706 redboot = be_flash_redboot(adapter, fw->data,
3707 pflashcomp[i].offset, pflashcomp[i].size,
3708 filehdr_size + img_hdrs_size);
3714 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3715 if (p + pflashcomp[i].size > fw->data + fw->size)
3718 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3719 pflashcomp[i].size);
3721 dev_err(&adapter->pdev->dev,
3722 "Flashing section type %d failed.\n",
3723 pflashcomp[i].img_type);
3730 static int be_flash_skyhawk(struct be_adapter *adapter,
3731 const struct firmware *fw,
3732 struct be_dma_mem *flash_cmd, int num_of_images)
3734 int status = 0, i, filehdr_size = 0;
3735 int img_offset, img_size, img_optype, redboot;
3736 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3737 const u8 *p = fw->data;
3738 struct flash_section_info *fsec = NULL;
3740 filehdr_size = sizeof(struct flash_file_hdr_g3);
3741 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3743 dev_err(&adapter->pdev->dev,
3744 "Invalid Cookie. UFI corrupted ?\n");
3748 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3749 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3750 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3752 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3753 case IMAGE_FIRMWARE_iSCSI:
3754 img_optype = OPTYPE_ISCSI_ACTIVE;
3756 case IMAGE_BOOT_CODE:
3757 img_optype = OPTYPE_REDBOOT;
3759 case IMAGE_OPTION_ROM_ISCSI:
3760 img_optype = OPTYPE_BIOS;
3762 case IMAGE_OPTION_ROM_PXE:
3763 img_optype = OPTYPE_PXE_BIOS;
3765 case IMAGE_OPTION_ROM_FCoE:
3766 img_optype = OPTYPE_FCOE_BIOS;
3768 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3769 img_optype = OPTYPE_ISCSI_BACKUP;
3772 img_optype = OPTYPE_NCSI_FW;
3778 if (img_optype == OPTYPE_REDBOOT) {
3779 redboot = be_flash_redboot(adapter, fw->data,
3780 img_offset, img_size,
3781 filehdr_size + img_hdrs_size);
3787 p += filehdr_size + img_offset + img_hdrs_size;
3788 if (p + img_size > fw->data + fw->size)
3791 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3793 dev_err(&adapter->pdev->dev,
3794 "Flashing section type %d failed.\n",
3795 fsec->fsec_entry[i].type);
3802 static int lancer_fw_download(struct be_adapter *adapter,
3803 const struct firmware *fw)
3805 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3806 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3807 struct be_dma_mem flash_cmd;
3808 const u8 *data_ptr = NULL;
3809 u8 *dest_image_ptr = NULL;
3810 size_t image_size = 0;
3812 u32 data_written = 0;
3818 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3819 dev_err(&adapter->pdev->dev,
3820 "FW Image not properly aligned. "
3821 "Length must be 4 byte aligned.\n");
3823 goto lancer_fw_exit;
3826 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3827 + LANCER_FW_DOWNLOAD_CHUNK;
3828 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3829 &flash_cmd.dma, GFP_KERNEL);
3830 if (!flash_cmd.va) {
3832 goto lancer_fw_exit;
3835 dest_image_ptr = flash_cmd.va +
3836 sizeof(struct lancer_cmd_req_write_object);
3837 image_size = fw->size;
3838 data_ptr = fw->data;
3840 while (image_size) {
3841 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3843 /* Copy the image chunk content. */
3844 memcpy(dest_image_ptr, data_ptr, chunk_size);
3846 status = lancer_cmd_write_object(adapter, &flash_cmd,
3848 LANCER_FW_DOWNLOAD_LOCATION,
3849 &data_written, &change_status,
3854 offset += data_written;
3855 data_ptr += data_written;
3856 image_size -= data_written;
3860 /* Commit the FW written */
3861 status = lancer_cmd_write_object(adapter, &flash_cmd,
3863 LANCER_FW_DOWNLOAD_LOCATION,
3864 &data_written, &change_status,
3868 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3871 dev_err(&adapter->pdev->dev,
3872 "Firmware load error. "
3873 "Status code: 0x%x Additional Status: 0x%x\n",
3874 status, add_status);
3875 goto lancer_fw_exit;
3878 if (change_status == LANCER_FW_RESET_NEEDED) {
3879 dev_info(&adapter->pdev->dev,
3880 "Resetting adapter to activate new FW\n");
3881 status = lancer_physdev_ctrl(adapter,
3882 PHYSDEV_CONTROL_FW_RESET_MASK);
3884 dev_err(&adapter->pdev->dev,
3885 "Adapter busy for FW reset.\n"
3886 "New FW will not be active.\n");
3887 goto lancer_fw_exit;
3889 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3890 dev_err(&adapter->pdev->dev,
3891 "System reboot required for new FW"
3895 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3902 #define UFI_TYPE3R 10
3904 static int be_get_ufi_type(struct be_adapter *adapter,
3905 struct flash_file_hdr_g3 *fhdr)
3908 goto be_get_ufi_exit;
3910 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3912 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3913 if (fhdr->asic_type_rev == 0x10)
3917 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3921 dev_err(&adapter->pdev->dev,
3922 "UFI and Interface are not compatible for flashing\n");
3926 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3928 struct flash_file_hdr_g3 *fhdr3;
3929 struct image_hdr *img_hdr_ptr = NULL;
3930 struct be_dma_mem flash_cmd;
3932 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3934 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3935 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3936 &flash_cmd.dma, GFP_KERNEL);
3937 if (!flash_cmd.va) {
3943 fhdr3 = (struct flash_file_hdr_g3 *)p;
3945 ufi_type = be_get_ufi_type(adapter, fhdr3);
3947 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3948 for (i = 0; i < num_imgs; i++) {
3949 img_hdr_ptr = (struct image_hdr *)(fw->data +
3950 (sizeof(struct flash_file_hdr_g3) +
3951 i * sizeof(struct image_hdr)));
3952 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3955 status = be_flash_skyhawk(adapter, fw,
3956 &flash_cmd, num_imgs);
3959 status = be_flash_BEx(adapter, fw, &flash_cmd,
3963 /* Do not flash this ufi on BE3-R cards */
3964 if (adapter->asic_rev < 0x10)
3965 status = be_flash_BEx(adapter, fw,
3970 dev_err(&adapter->pdev->dev,
3971 "Can't load BE3 UFI on BE3R\n");
3977 if (ufi_type == UFI_TYPE2)
3978 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3979 else if (ufi_type == -1)
3982 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3985 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3989 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3995 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3997 const struct firmware *fw;
4000 if (!netif_running(adapter->netdev)) {
4001 dev_err(&adapter->pdev->dev,
4002 "Firmware load not allowed (interface is down)\n");
4006 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
4010 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
4012 if (lancer_chip(adapter))
4013 status = lancer_fw_download(adapter, fw);
4015 status = be_fw_download(adapter, fw);
4018 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
4019 adapter->fw_on_flash);
4022 release_firmware(fw);
4026 static int be_ndo_bridge_setlink(struct net_device *dev,
4027 struct nlmsghdr *nlh)
4029 struct be_adapter *adapter = netdev_priv(dev);
4030 struct nlattr *attr, *br_spec;
4035 if (!sriov_enabled(adapter))
4038 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
4040 nla_for_each_nested(attr, br_spec, rem) {
4041 if (nla_type(attr) != IFLA_BRIDGE_MODE)
4044 mode = nla_get_u16(attr);
4045 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
4048 status = be_cmd_set_hsw_config(adapter, 0, 0,
4050 mode == BRIDGE_MODE_VEPA ?
4051 PORT_FWD_TYPE_VEPA :
4056 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
4057 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4062 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
4063 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4068 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4069 struct net_device *dev,
4072 struct be_adapter *adapter = netdev_priv(dev);
4076 if (!sriov_enabled(adapter))
4079 /* BE and Lancer chips support VEB mode only */
4080 if (BEx_chip(adapter) || lancer_chip(adapter)) {
4081 hsw_mode = PORT_FWD_TYPE_VEB;
4083 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4084 adapter->if_handle, &hsw_mode);
4089 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4090 hsw_mode == PORT_FWD_TYPE_VEPA ?
4091 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4094 static const struct net_device_ops be_netdev_ops = {
4095 .ndo_open = be_open,
4096 .ndo_stop = be_close,
4097 .ndo_start_xmit = be_xmit,
4098 .ndo_set_rx_mode = be_set_rx_mode,
4099 .ndo_set_mac_address = be_mac_addr_set,
4100 .ndo_change_mtu = be_change_mtu,
4101 .ndo_get_stats64 = be_get_stats64,
4102 .ndo_validate_addr = eth_validate_addr,
4103 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
4104 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
4105 .ndo_set_vf_mac = be_set_vf_mac,
4106 .ndo_set_vf_vlan = be_set_vf_vlan,
4107 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
4108 .ndo_get_vf_config = be_get_vf_config,
4109 #ifdef CONFIG_NET_POLL_CONTROLLER
4110 .ndo_poll_controller = be_netpoll,
4112 .ndo_bridge_setlink = be_ndo_bridge_setlink,
4113 .ndo_bridge_getlink = be_ndo_bridge_getlink,
4114 #ifdef CONFIG_NET_RX_BUSY_POLL
4115 .ndo_busy_poll = be_busy_poll
4119 static void be_netdev_init(struct net_device *netdev)
4121 struct be_adapter *adapter = netdev_priv(netdev);
4123 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4124 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4125 NETIF_F_HW_VLAN_CTAG_TX;
4126 if (be_multi_rxq(adapter))
4127 netdev->hw_features |= NETIF_F_RXHASH;
4129 netdev->features |= netdev->hw_features |
4130 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4132 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4133 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4135 netdev->priv_flags |= IFF_UNICAST_FLT;
4137 netdev->flags |= IFF_MULTICAST;
4139 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4141 netdev->netdev_ops = &be_netdev_ops;
4143 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
4146 static void be_unmap_pci_bars(struct be_adapter *adapter)
4149 pci_iounmap(adapter->pdev, adapter->csr);
4151 pci_iounmap(adapter->pdev, adapter->db);
4154 static int db_bar(struct be_adapter *adapter)
4156 if (lancer_chip(adapter) || !be_physfn(adapter))
4162 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4164 if (skyhawk_chip(adapter)) {
4165 adapter->roce_db.size = 4096;
4166 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4168 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4174 static int be_map_pci_bars(struct be_adapter *adapter)
4178 if (BEx_chip(adapter) && be_physfn(adapter)) {
4179 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4180 if (adapter->csr == NULL)
4184 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4189 be_roce_map_pci_bars(adapter);
4193 be_unmap_pci_bars(adapter);
4197 static void be_ctrl_cleanup(struct be_adapter *adapter)
4199 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4201 be_unmap_pci_bars(adapter);
4204 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4207 mem = &adapter->rx_filter;
4209 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4213 static int be_ctrl_init(struct be_adapter *adapter)
4215 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4216 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4217 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4221 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4222 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4223 SLI_INTF_FAMILY_SHIFT;
4224 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4226 status = be_map_pci_bars(adapter);
4230 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4231 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4232 mbox_mem_alloc->size,
4233 &mbox_mem_alloc->dma,
4235 if (!mbox_mem_alloc->va) {
4237 goto unmap_pci_bars;
4239 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4240 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4241 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4242 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4244 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4245 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4246 rx_filter->size, &rx_filter->dma,
4248 if (rx_filter->va == NULL) {
4253 mutex_init(&adapter->mbox_lock);
4254 spin_lock_init(&adapter->mcc_lock);
4255 spin_lock_init(&adapter->mcc_cq_lock);
4257 init_completion(&adapter->et_cmd_compl);
4258 pci_save_state(adapter->pdev);
4262 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4263 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4266 be_unmap_pci_bars(adapter);
4272 static void be_stats_cleanup(struct be_adapter *adapter)
4274 struct be_dma_mem *cmd = &adapter->stats_cmd;
4277 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4281 static int be_stats_init(struct be_adapter *adapter)
4283 struct be_dma_mem *cmd = &adapter->stats_cmd;
4285 if (lancer_chip(adapter))
4286 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4287 else if (BE2_chip(adapter))
4288 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4289 else if (BE3_chip(adapter))
4290 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4292 /* ALL non-BE ASICs */
4293 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4295 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4297 if (cmd->va == NULL)
4302 static void be_remove(struct pci_dev *pdev)
4304 struct be_adapter *adapter = pci_get_drvdata(pdev);
4309 be_roce_dev_remove(adapter);
4310 be_intr_set(adapter, false);
4312 cancel_delayed_work_sync(&adapter->func_recovery_work);
4314 unregister_netdev(adapter->netdev);
4318 /* tell fw we're done with firing cmds */
4319 be_cmd_fw_clean(adapter);
4321 be_stats_cleanup(adapter);
4323 be_ctrl_cleanup(adapter);
4325 pci_disable_pcie_error_reporting(pdev);
4327 pci_release_regions(pdev);
4328 pci_disable_device(pdev);
4330 free_netdev(adapter->netdev);
4333 static int be_get_initial_config(struct be_adapter *adapter)
4337 status = be_cmd_get_cntl_attributes(adapter);
4341 /* Must be a power of 2 or else MODULO will BUG_ON */
4342 adapter->be_get_temp_freq = 64;
4344 if (BEx_chip(adapter)) {
4345 level = be_cmd_get_fw_log_level(adapter);
4346 adapter->msg_enable =
4347 level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4350 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4354 static int lancer_recover_func(struct be_adapter *adapter)
4356 struct device *dev = &adapter->pdev->dev;
4359 status = lancer_test_and_set_rdy_state(adapter);
4363 if (netif_running(adapter->netdev))
4364 be_close(adapter->netdev);
4368 be_clear_all_error(adapter);
4370 status = be_setup(adapter);
4374 if (netif_running(adapter->netdev)) {
4375 status = be_open(adapter->netdev);
4380 dev_err(dev, "Adapter recovery successful\n");
4383 if (status == -EAGAIN)
4384 dev_err(dev, "Waiting for resource provisioning\n");
4386 dev_err(dev, "Adapter recovery failed\n");
4391 static void be_func_recovery_task(struct work_struct *work)
4393 struct be_adapter *adapter =
4394 container_of(work, struct be_adapter, func_recovery_work.work);
4397 be_detect_error(adapter);
4399 if (adapter->hw_error && lancer_chip(adapter)) {
4402 netif_device_detach(adapter->netdev);
4405 status = lancer_recover_func(adapter);
4407 netif_device_attach(adapter->netdev);
4410 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4411 * no need to attempt further recovery.
4413 if (!status || status == -EAGAIN)
4414 schedule_delayed_work(&adapter->func_recovery_work,
4415 msecs_to_jiffies(1000));
4418 static void be_worker(struct work_struct *work)
4420 struct be_adapter *adapter =
4421 container_of(work, struct be_adapter, work.work);
4422 struct be_rx_obj *rxo;
4425 /* when interrupts are not yet enabled, just reap any pending
4426 * mcc completions */
4427 if (!netif_running(adapter->netdev)) {
4429 be_process_mcc(adapter);
4434 if (!adapter->stats_cmd_sent) {
4435 if (lancer_chip(adapter))
4436 lancer_cmd_get_pport_stats(adapter,
4437 &adapter->stats_cmd);
4439 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4442 if (be_physfn(adapter) &&
4443 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4444 be_cmd_get_die_temperature(adapter);
4446 for_all_rx_queues(adapter, rxo, i) {
4447 /* Replenish RX-queues starved due to memory
4448 * allocation failures.
4450 if (rxo->rx_post_starved)
4451 be_post_rx_frags(rxo, GFP_KERNEL);
4454 be_eqd_update(adapter);
4457 adapter->work_counter++;
4458 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4461 /* If any VFs are already enabled don't FLR the PF */
4462 static bool be_reset_required(struct be_adapter *adapter)
4464 return pci_num_vf(adapter->pdev) ? false : true;
4467 static char *mc_name(struct be_adapter *adapter)
4469 char *str = ""; /* default */
4471 switch (adapter->mc_type) {
4497 static inline char *func_name(struct be_adapter *adapter)
4499 return be_physfn(adapter) ? "PF" : "VF";
4502 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4505 struct be_adapter *adapter;
4506 struct net_device *netdev;
4509 status = pci_enable_device(pdev);
4513 status = pci_request_regions(pdev, DRV_NAME);
4516 pci_set_master(pdev);
4518 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4519 if (netdev == NULL) {
4523 adapter = netdev_priv(netdev);
4524 adapter->pdev = pdev;
4525 pci_set_drvdata(pdev, adapter);
4526 adapter->netdev = netdev;
4527 SET_NETDEV_DEV(netdev, &pdev->dev);
4529 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
4531 netdev->features |= NETIF_F_HIGHDMA;
4533 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
4535 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4540 if (be_physfn(adapter)) {
4541 status = pci_enable_pcie_error_reporting(pdev);
4543 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4546 status = be_ctrl_init(adapter);
4550 /* sync up with fw's ready state */
4551 if (be_physfn(adapter)) {
4552 status = be_fw_wait_ready(adapter);
4557 if (be_reset_required(adapter)) {
4558 status = be_cmd_reset_function(adapter);
4562 /* Wait for interrupts to quiesce after an FLR */
4566 /* Allow interrupts for other ULPs running on NIC function */
4567 be_intr_set(adapter, true);
4569 /* tell fw we're ready to fire cmds */
4570 status = be_cmd_fw_init(adapter);
4574 status = be_stats_init(adapter);
4578 status = be_get_initial_config(adapter);
4582 INIT_DELAYED_WORK(&adapter->work, be_worker);
4583 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4584 adapter->rx_fc = adapter->tx_fc = true;
4586 status = be_setup(adapter);
4590 be_netdev_init(netdev);
4591 status = register_netdev(netdev);
4595 be_roce_dev_add(adapter);
4597 schedule_delayed_work(&adapter->func_recovery_work,
4598 msecs_to_jiffies(1000));
4600 be_cmd_query_port_name(adapter, &port_name);
4602 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4603 func_name(adapter), mc_name(adapter), port_name);
4610 be_stats_cleanup(adapter);
4612 be_ctrl_cleanup(adapter);
4614 free_netdev(netdev);
4616 pci_release_regions(pdev);
4618 pci_disable_device(pdev);
4620 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4624 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4626 struct be_adapter *adapter = pci_get_drvdata(pdev);
4627 struct net_device *netdev = adapter->netdev;
4629 if (adapter->wol_en)
4630 be_setup_wol(adapter, true);
4632 be_intr_set(adapter, false);
4633 cancel_delayed_work_sync(&adapter->func_recovery_work);
4635 netif_device_detach(netdev);
4636 if (netif_running(netdev)) {
4643 pci_save_state(pdev);
4644 pci_disable_device(pdev);
4645 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4649 static int be_resume(struct pci_dev *pdev)
4652 struct be_adapter *adapter = pci_get_drvdata(pdev);
4653 struct net_device *netdev = adapter->netdev;
4655 netif_device_detach(netdev);
4657 status = pci_enable_device(pdev);
4661 pci_set_power_state(pdev, PCI_D0);
4662 pci_restore_state(pdev);
4664 status = be_fw_wait_ready(adapter);
4668 be_intr_set(adapter, true);
4669 /* tell fw we're ready to fire cmds */
4670 status = be_cmd_fw_init(adapter);
4675 if (netif_running(netdev)) {
4681 schedule_delayed_work(&adapter->func_recovery_work,
4682 msecs_to_jiffies(1000));
4683 netif_device_attach(netdev);
4685 if (adapter->wol_en)
4686 be_setup_wol(adapter, false);
4692 * An FLR will stop BE from DMAing any data.
4694 static void be_shutdown(struct pci_dev *pdev)
4696 struct be_adapter *adapter = pci_get_drvdata(pdev);
4701 cancel_delayed_work_sync(&adapter->work);
4702 cancel_delayed_work_sync(&adapter->func_recovery_work);
4704 netif_device_detach(adapter->netdev);
4706 be_cmd_reset_function(adapter);
4708 pci_disable_device(pdev);
4711 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4712 pci_channel_state_t state)
4714 struct be_adapter *adapter = pci_get_drvdata(pdev);
4715 struct net_device *netdev = adapter->netdev;
4717 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4719 if (!adapter->eeh_error) {
4720 adapter->eeh_error = true;
4722 cancel_delayed_work_sync(&adapter->func_recovery_work);
4725 netif_device_detach(netdev);
4726 if (netif_running(netdev))
4733 if (state == pci_channel_io_perm_failure)
4734 return PCI_ERS_RESULT_DISCONNECT;
4736 pci_disable_device(pdev);
4738 /* The error could cause the FW to trigger a flash debug dump.
4739 * Resetting the card while flash dump is in progress
4740 * can cause it not to recover; wait for it to finish.
4741 * Wait only for first function as it is needed only once per
4744 if (pdev->devfn == 0)
4747 return PCI_ERS_RESULT_NEED_RESET;
4750 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4752 struct be_adapter *adapter = pci_get_drvdata(pdev);
4755 dev_info(&adapter->pdev->dev, "EEH reset\n");
4757 status = pci_enable_device(pdev);
4759 return PCI_ERS_RESULT_DISCONNECT;
4761 pci_set_master(pdev);
4762 pci_set_power_state(pdev, PCI_D0);
4763 pci_restore_state(pdev);
4765 /* Check if card is ok and fw is ready */
4766 dev_info(&adapter->pdev->dev,
4767 "Waiting for FW to be ready after EEH reset\n");
4768 status = be_fw_wait_ready(adapter);
4770 return PCI_ERS_RESULT_DISCONNECT;
4772 pci_cleanup_aer_uncorrect_error_status(pdev);
4773 be_clear_all_error(adapter);
4774 return PCI_ERS_RESULT_RECOVERED;
4777 static void be_eeh_resume(struct pci_dev *pdev)
4780 struct be_adapter *adapter = pci_get_drvdata(pdev);
4781 struct net_device *netdev = adapter->netdev;
4783 dev_info(&adapter->pdev->dev, "EEH resume\n");
4785 pci_save_state(pdev);
4787 status = be_cmd_reset_function(adapter);
4791 /* tell fw we're ready to fire cmds */
4792 status = be_cmd_fw_init(adapter);
4796 status = be_setup(adapter);
4800 if (netif_running(netdev)) {
4801 status = be_open(netdev);
4806 schedule_delayed_work(&adapter->func_recovery_work,
4807 msecs_to_jiffies(1000));
4808 netif_device_attach(netdev);
4811 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4814 static const struct pci_error_handlers be_eeh_handlers = {
4815 .error_detected = be_eeh_err_detected,
4816 .slot_reset = be_eeh_reset,
4817 .resume = be_eeh_resume,
4820 static struct pci_driver be_driver = {
4822 .id_table = be_dev_ids,
4824 .remove = be_remove,
4825 .suspend = be_suspend,
4826 .resume = be_resume,
4827 .shutdown = be_shutdown,
4828 .err_handler = &be_eeh_handlers
4831 static int __init be_init_module(void)
4833 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4834 rx_frag_size != 2048) {
4835 printk(KERN_WARNING DRV_NAME
4836 " : Module param rx_frag_size must be 2048/4096/8192."
4838 rx_frag_size = 2048;
4841 return pci_register_driver(&be_driver);
4843 module_init(be_init_module);
4845 static void __exit be_exit_module(void)
4847 pci_unregister_driver(&be_driver);
4849 module_exit(be_exit_module);