2 * Copyright (C) 2005 - 2015 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>
26 #include <net/vxlan.h>
28 MODULE_VERSION(DRV_VER);
29 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
30 MODULE_AUTHOR("Emulex Corporation");
31 MODULE_LICENSE("GPL");
33 /* num_vfs module param is obsolete.
34 * Use sysfs method to enable/disable VFs.
36 static unsigned int num_vfs;
37 module_param(num_vfs, uint, S_IRUGO);
38 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
40 static ushort rx_frag_size = 2048;
41 module_param(rx_frag_size, ushort, S_IRUGO);
42 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
44 static const struct pci_device_id be_dev_ids[] = {
45 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
46 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
47 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
48 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
49 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
50 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
51 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
52 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
55 MODULE_DEVICE_TABLE(pci, be_dev_ids);
56 /* UE Status Low CSR */
57 static const char * const ue_status_low_desc[] = {
92 /* UE Status High CSR */
93 static const char * const ue_status_hi_desc[] = {
128 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
130 struct be_dma_mem *mem = &q->dma_mem;
133 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
139 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
140 u16 len, u16 entry_size)
142 struct be_dma_mem *mem = &q->dma_mem;
144 memset(q, 0, sizeof(*q));
146 q->entry_size = entry_size;
147 mem->size = len * entry_size;
148 mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
155 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
159 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
161 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
163 if (!enabled && enable)
164 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
165 else if (enabled && !enable)
166 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
170 pci_write_config_dword(adapter->pdev,
171 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
174 static void be_intr_set(struct be_adapter *adapter, bool enable)
178 /* On lancer interrupts can't be controlled via this register */
179 if (lancer_chip(adapter))
182 if (be_check_error(adapter, BE_ERROR_EEH))
185 status = be_cmd_intr_set(adapter, enable);
187 be_reg_intr_set(adapter, enable);
190 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
194 if (be_check_error(adapter, BE_ERROR_HW))
197 val |= qid & DB_RQ_RING_ID_MASK;
198 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
201 iowrite32(val, adapter->db + DB_RQ_OFFSET);
204 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
209 if (be_check_error(adapter, BE_ERROR_HW))
212 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
213 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
216 iowrite32(val, adapter->db + txo->db_offset);
219 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
220 bool arm, bool clear_int, u16 num_popped,
221 u32 eq_delay_mult_enc)
225 val |= qid & DB_EQ_RING_ID_MASK;
226 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << DB_EQ_RING_ID_EXT_MASK_SHIFT);
228 if (be_check_error(adapter, BE_ERROR_HW))
232 val |= 1 << DB_EQ_REARM_SHIFT;
234 val |= 1 << DB_EQ_CLR_SHIFT;
235 val |= 1 << DB_EQ_EVNT_SHIFT;
236 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
237 val |= eq_delay_mult_enc << DB_EQ_R2I_DLY_SHIFT;
238 iowrite32(val, adapter->db + DB_EQ_OFFSET);
241 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
245 val |= qid & DB_CQ_RING_ID_MASK;
246 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
247 DB_CQ_RING_ID_EXT_MASK_SHIFT);
249 if (be_check_error(adapter, BE_ERROR_HW))
253 val |= 1 << DB_CQ_REARM_SHIFT;
254 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
255 iowrite32(val, adapter->db + DB_CQ_OFFSET);
258 static int be_mac_addr_set(struct net_device *netdev, void *p)
260 struct be_adapter *adapter = netdev_priv(netdev);
261 struct device *dev = &adapter->pdev->dev;
262 struct sockaddr *addr = p;
265 u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0;
267 if (!is_valid_ether_addr(addr->sa_data))
268 return -EADDRNOTAVAIL;
270 /* Proceed further only if, User provided MAC is different
273 if (ether_addr_equal(addr->sa_data, netdev->dev_addr))
276 /* if device is not running, copy MAC to netdev->dev_addr */
277 if (!netif_running(netdev))
280 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
281 * privilege or if PF did not provision the new MAC address.
282 * On BE3, this cmd will always fail if the VF doesn't have the
283 * FILTMGMT privilege. This failure is OK, only if the PF programmed
284 * the MAC for the VF.
286 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
287 adapter->if_handle, &adapter->pmac_id[0], 0);
289 curr_pmac_id = adapter->pmac_id[0];
291 /* Delete the old programmed MAC. This call may fail if the
292 * old MAC was already deleted by the PF driver.
294 if (adapter->pmac_id[0] != old_pmac_id)
295 be_cmd_pmac_del(adapter, adapter->if_handle,
299 /* Decide if the new MAC is successfully activated only after
302 status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac,
303 adapter->if_handle, true, 0);
307 /* The MAC change did not happen, either due to lack of privilege
308 * or PF didn't pre-provision.
310 if (!ether_addr_equal(addr->sa_data, mac)) {
315 ether_addr_copy(netdev->dev_addr, addr->sa_data);
316 dev_info(dev, "MAC address changed to %pM\n", addr->sa_data);
319 dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
323 /* BE2 supports only v0 cmd */
324 static void *hw_stats_from_cmd(struct be_adapter *adapter)
326 if (BE2_chip(adapter)) {
327 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
329 return &cmd->hw_stats;
330 } else if (BE3_chip(adapter)) {
331 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
333 return &cmd->hw_stats;
335 struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;
337 return &cmd->hw_stats;
341 /* BE2 supports only v0 cmd */
342 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
344 if (BE2_chip(adapter)) {
345 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
347 return &hw_stats->erx;
348 } else if (BE3_chip(adapter)) {
349 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
351 return &hw_stats->erx;
353 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
355 return &hw_stats->erx;
359 static void populate_be_v0_stats(struct be_adapter *adapter)
361 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
362 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
363 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
364 struct be_port_rxf_stats_v0 *port_stats =
365 &rxf_stats->port[adapter->port_num];
366 struct be_drv_stats *drvs = &adapter->drv_stats;
368 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
369 drvs->rx_pause_frames = port_stats->rx_pause_frames;
370 drvs->rx_crc_errors = port_stats->rx_crc_errors;
371 drvs->rx_control_frames = port_stats->rx_control_frames;
372 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
373 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
374 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
375 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
376 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
377 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
378 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
379 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
380 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
381 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
382 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
383 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
384 drvs->rx_dropped_header_too_small =
385 port_stats->rx_dropped_header_too_small;
386 drvs->rx_address_filtered =
387 port_stats->rx_address_filtered +
388 port_stats->rx_vlan_filtered;
389 drvs->rx_alignment_symbol_errors =
390 port_stats->rx_alignment_symbol_errors;
392 drvs->tx_pauseframes = port_stats->tx_pauseframes;
393 drvs->tx_controlframes = port_stats->tx_controlframes;
395 if (adapter->port_num)
396 drvs->jabber_events = rxf_stats->port1_jabber_events;
398 drvs->jabber_events = rxf_stats->port0_jabber_events;
399 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
400 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
401 drvs->forwarded_packets = rxf_stats->forwarded_packets;
402 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
403 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
404 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
405 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
408 static void populate_be_v1_stats(struct be_adapter *adapter)
410 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
411 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
412 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
413 struct be_port_rxf_stats_v1 *port_stats =
414 &rxf_stats->port[adapter->port_num];
415 struct be_drv_stats *drvs = &adapter->drv_stats;
417 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
418 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
419 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
420 drvs->rx_pause_frames = port_stats->rx_pause_frames;
421 drvs->rx_crc_errors = port_stats->rx_crc_errors;
422 drvs->rx_control_frames = port_stats->rx_control_frames;
423 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
424 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
425 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
426 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
427 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
428 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
429 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
430 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
431 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
432 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
433 drvs->rx_dropped_header_too_small =
434 port_stats->rx_dropped_header_too_small;
435 drvs->rx_input_fifo_overflow_drop =
436 port_stats->rx_input_fifo_overflow_drop;
437 drvs->rx_address_filtered = port_stats->rx_address_filtered;
438 drvs->rx_alignment_symbol_errors =
439 port_stats->rx_alignment_symbol_errors;
440 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
441 drvs->tx_pauseframes = port_stats->tx_pauseframes;
442 drvs->tx_controlframes = port_stats->tx_controlframes;
443 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
444 drvs->jabber_events = port_stats->jabber_events;
445 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
446 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
447 drvs->forwarded_packets = rxf_stats->forwarded_packets;
448 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
449 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
450 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
451 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
454 static void populate_be_v2_stats(struct be_adapter *adapter)
456 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
457 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
458 struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
459 struct be_port_rxf_stats_v2 *port_stats =
460 &rxf_stats->port[adapter->port_num];
461 struct be_drv_stats *drvs = &adapter->drv_stats;
463 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
464 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
465 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
466 drvs->rx_pause_frames = port_stats->rx_pause_frames;
467 drvs->rx_crc_errors = port_stats->rx_crc_errors;
468 drvs->rx_control_frames = port_stats->rx_control_frames;
469 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
470 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
471 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
472 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
473 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
474 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
475 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
476 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
477 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
478 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
479 drvs->rx_dropped_header_too_small =
480 port_stats->rx_dropped_header_too_small;
481 drvs->rx_input_fifo_overflow_drop =
482 port_stats->rx_input_fifo_overflow_drop;
483 drvs->rx_address_filtered = port_stats->rx_address_filtered;
484 drvs->rx_alignment_symbol_errors =
485 port_stats->rx_alignment_symbol_errors;
486 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
487 drvs->tx_pauseframes = port_stats->tx_pauseframes;
488 drvs->tx_controlframes = port_stats->tx_controlframes;
489 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
490 drvs->jabber_events = port_stats->jabber_events;
491 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
492 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
493 drvs->forwarded_packets = rxf_stats->forwarded_packets;
494 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
495 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
496 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
497 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
498 if (be_roce_supported(adapter)) {
499 drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
500 drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
501 drvs->rx_roce_frames = port_stats->roce_frames_received;
502 drvs->roce_drops_crc = port_stats->roce_drops_crc;
503 drvs->roce_drops_payload_len =
504 port_stats->roce_drops_payload_len;
508 static void populate_lancer_stats(struct be_adapter *adapter)
510 struct be_drv_stats *drvs = &adapter->drv_stats;
511 struct lancer_pport_stats *pport_stats = pport_stats_from_cmd(adapter);
513 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
514 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
515 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
516 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
517 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
518 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
519 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
520 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
521 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
522 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
523 drvs->rx_dropped_tcp_length =
524 pport_stats->rx_dropped_invalid_tcp_length;
525 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
526 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
527 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
528 drvs->rx_dropped_header_too_small =
529 pport_stats->rx_dropped_header_too_small;
530 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
531 drvs->rx_address_filtered =
532 pport_stats->rx_address_filtered +
533 pport_stats->rx_vlan_filtered;
534 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
535 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
536 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
537 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
538 drvs->jabber_events = pport_stats->rx_jabbers;
539 drvs->forwarded_packets = pport_stats->num_forwards_lo;
540 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
541 drvs->rx_drops_too_many_frags =
542 pport_stats->rx_drops_too_many_frags_lo;
545 static void accumulate_16bit_val(u32 *acc, u16 val)
547 #define lo(x) (x & 0xFFFF)
548 #define hi(x) (x & 0xFFFF0000)
549 bool wrapped = val < lo(*acc);
550 u32 newacc = hi(*acc) + val;
554 ACCESS_ONCE(*acc) = newacc;
557 static void populate_erx_stats(struct be_adapter *adapter,
558 struct be_rx_obj *rxo, u32 erx_stat)
560 if (!BEx_chip(adapter))
561 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
563 /* below erx HW counter can actually wrap around after
564 * 65535. Driver accumulates a 32-bit value
566 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
570 void be_parse_stats(struct be_adapter *adapter)
572 struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
573 struct be_rx_obj *rxo;
577 if (lancer_chip(adapter)) {
578 populate_lancer_stats(adapter);
580 if (BE2_chip(adapter))
581 populate_be_v0_stats(adapter);
582 else if (BE3_chip(adapter))
584 populate_be_v1_stats(adapter);
586 populate_be_v2_stats(adapter);
588 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
589 for_all_rx_queues(adapter, rxo, i) {
590 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
591 populate_erx_stats(adapter, rxo, erx_stat);
596 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
597 struct rtnl_link_stats64 *stats)
599 struct be_adapter *adapter = netdev_priv(netdev);
600 struct be_drv_stats *drvs = &adapter->drv_stats;
601 struct be_rx_obj *rxo;
602 struct be_tx_obj *txo;
607 for_all_rx_queues(adapter, rxo, i) {
608 const struct be_rx_stats *rx_stats = rx_stats(rxo);
611 start = u64_stats_fetch_begin_irq(&rx_stats->sync);
612 pkts = rx_stats(rxo)->rx_pkts;
613 bytes = rx_stats(rxo)->rx_bytes;
614 } while (u64_stats_fetch_retry_irq(&rx_stats->sync, start));
615 stats->rx_packets += pkts;
616 stats->rx_bytes += bytes;
617 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
618 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
619 rx_stats(rxo)->rx_drops_no_frags;
622 for_all_tx_queues(adapter, txo, i) {
623 const struct be_tx_stats *tx_stats = tx_stats(txo);
626 start = u64_stats_fetch_begin_irq(&tx_stats->sync);
627 pkts = tx_stats(txo)->tx_pkts;
628 bytes = tx_stats(txo)->tx_bytes;
629 } while (u64_stats_fetch_retry_irq(&tx_stats->sync, start));
630 stats->tx_packets += pkts;
631 stats->tx_bytes += bytes;
634 /* bad pkts received */
635 stats->rx_errors = drvs->rx_crc_errors +
636 drvs->rx_alignment_symbol_errors +
637 drvs->rx_in_range_errors +
638 drvs->rx_out_range_errors +
639 drvs->rx_frame_too_long +
640 drvs->rx_dropped_too_small +
641 drvs->rx_dropped_too_short +
642 drvs->rx_dropped_header_too_small +
643 drvs->rx_dropped_tcp_length +
644 drvs->rx_dropped_runt;
646 /* detailed rx errors */
647 stats->rx_length_errors = drvs->rx_in_range_errors +
648 drvs->rx_out_range_errors +
649 drvs->rx_frame_too_long;
651 stats->rx_crc_errors = drvs->rx_crc_errors;
653 /* frame alignment errors */
654 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
656 /* receiver fifo overrun */
657 /* drops_no_pbuf is no per i/f, it's per BE card */
658 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
659 drvs->rx_input_fifo_overflow_drop +
660 drvs->rx_drops_no_pbuf;
664 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
666 struct net_device *netdev = adapter->netdev;
668 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
669 netif_carrier_off(netdev);
670 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
674 netif_carrier_on(netdev);
676 netif_carrier_off(netdev);
678 netdev_info(netdev, "Link is %s\n", link_status ? "Up" : "Down");
681 static void be_tx_stats_update(struct be_tx_obj *txo, struct sk_buff *skb)
683 struct be_tx_stats *stats = tx_stats(txo);
684 u64 tx_pkts = skb_shinfo(skb)->gso_segs ? : 1;
686 u64_stats_update_begin(&stats->sync);
688 stats->tx_bytes += skb->len;
689 stats->tx_pkts += tx_pkts;
690 if (skb->encapsulation && skb->ip_summed == CHECKSUM_PARTIAL)
691 stats->tx_vxlan_offload_pkts += tx_pkts;
692 u64_stats_update_end(&stats->sync);
695 /* Returns number of WRBs needed for the skb */
696 static u32 skb_wrb_cnt(struct sk_buff *skb)
698 /* +1 for the header wrb */
699 return 1 + (skb_headlen(skb) ? 1 : 0) + skb_shinfo(skb)->nr_frags;
702 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
704 wrb->frag_pa_hi = cpu_to_le32(upper_32_bits(addr));
705 wrb->frag_pa_lo = cpu_to_le32(lower_32_bits(addr));
706 wrb->frag_len = cpu_to_le32(len & ETH_WRB_FRAG_LEN_MASK);
710 /* A dummy wrb is just all zeros. Using a separate routine for dummy-wrb
711 * to avoid the swap and shift/mask operations in wrb_fill().
713 static inline void wrb_fill_dummy(struct be_eth_wrb *wrb)
721 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
727 vlan_tag = skb_vlan_tag_get(skb);
728 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
729 /* If vlan priority provided by OS is NOT in available bmap */
730 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
731 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
732 adapter->recommended_prio;
737 /* Used only for IP tunnel packets */
738 static u16 skb_inner_ip_proto(struct sk_buff *skb)
740 return (inner_ip_hdr(skb)->version == 4) ?
741 inner_ip_hdr(skb)->protocol : inner_ipv6_hdr(skb)->nexthdr;
744 static u16 skb_ip_proto(struct sk_buff *skb)
746 return (ip_hdr(skb)->version == 4) ?
747 ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
750 static inline bool be_is_txq_full(struct be_tx_obj *txo)
752 return atomic_read(&txo->q.used) + BE_MAX_TX_FRAG_COUNT >= txo->q.len;
755 static inline bool be_can_txq_wake(struct be_tx_obj *txo)
757 return atomic_read(&txo->q.used) < txo->q.len / 2;
760 static inline bool be_is_tx_compl_pending(struct be_tx_obj *txo)
762 return atomic_read(&txo->q.used) > txo->pend_wrb_cnt;
765 static void be_get_wrb_params_from_skb(struct be_adapter *adapter,
767 struct be_wrb_params *wrb_params)
771 if (skb_is_gso(skb)) {
772 BE_WRB_F_SET(wrb_params->features, LSO, 1);
773 wrb_params->lso_mss = skb_shinfo(skb)->gso_size;
774 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
775 BE_WRB_F_SET(wrb_params->features, LSO6, 1);
776 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
777 if (skb->encapsulation) {
778 BE_WRB_F_SET(wrb_params->features, IPCS, 1);
779 proto = skb_inner_ip_proto(skb);
781 proto = skb_ip_proto(skb);
783 if (proto == IPPROTO_TCP)
784 BE_WRB_F_SET(wrb_params->features, TCPCS, 1);
785 else if (proto == IPPROTO_UDP)
786 BE_WRB_F_SET(wrb_params->features, UDPCS, 1);
789 if (skb_vlan_tag_present(skb)) {
790 BE_WRB_F_SET(wrb_params->features, VLAN, 1);
791 wrb_params->vlan_tag = be_get_tx_vlan_tag(adapter, skb);
794 BE_WRB_F_SET(wrb_params->features, CRC, 1);
797 static void wrb_fill_hdr(struct be_adapter *adapter,
798 struct be_eth_hdr_wrb *hdr,
799 struct be_wrb_params *wrb_params,
802 memset(hdr, 0, sizeof(*hdr));
804 SET_TX_WRB_HDR_BITS(crc, hdr,
805 BE_WRB_F_GET(wrb_params->features, CRC));
806 SET_TX_WRB_HDR_BITS(ipcs, hdr,
807 BE_WRB_F_GET(wrb_params->features, IPCS));
808 SET_TX_WRB_HDR_BITS(tcpcs, hdr,
809 BE_WRB_F_GET(wrb_params->features, TCPCS));
810 SET_TX_WRB_HDR_BITS(udpcs, hdr,
811 BE_WRB_F_GET(wrb_params->features, UDPCS));
813 SET_TX_WRB_HDR_BITS(lso, hdr,
814 BE_WRB_F_GET(wrb_params->features, LSO));
815 SET_TX_WRB_HDR_BITS(lso6, hdr,
816 BE_WRB_F_GET(wrb_params->features, LSO6));
817 SET_TX_WRB_HDR_BITS(lso_mss, hdr, wrb_params->lso_mss);
819 /* Hack to skip HW VLAN tagging needs evt = 1, compl = 0. When this
820 * hack is not needed, the evt bit is set while ringing DB.
822 SET_TX_WRB_HDR_BITS(event, hdr,
823 BE_WRB_F_GET(wrb_params->features, VLAN_SKIP_HW));
824 SET_TX_WRB_HDR_BITS(vlan, hdr,
825 BE_WRB_F_GET(wrb_params->features, VLAN));
826 SET_TX_WRB_HDR_BITS(vlan_tag, hdr, wrb_params->vlan_tag);
828 SET_TX_WRB_HDR_BITS(num_wrb, hdr, skb_wrb_cnt(skb));
829 SET_TX_WRB_HDR_BITS(len, hdr, skb->len);
830 SET_TX_WRB_HDR_BITS(mgmt, hdr,
831 BE_WRB_F_GET(wrb_params->features, OS2BMC));
834 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
838 u32 frag_len = le32_to_cpu(wrb->frag_len);
841 dma = (u64)le32_to_cpu(wrb->frag_pa_hi) << 32 |
842 (u64)le32_to_cpu(wrb->frag_pa_lo);
845 dma_unmap_single(dev, dma, frag_len, DMA_TO_DEVICE);
847 dma_unmap_page(dev, dma, frag_len, DMA_TO_DEVICE);
851 /* Grab a WRB header for xmit */
852 static u16 be_tx_get_wrb_hdr(struct be_tx_obj *txo)
854 u16 head = txo->q.head;
856 queue_head_inc(&txo->q);
860 /* Set up the WRB header for xmit */
861 static void be_tx_setup_wrb_hdr(struct be_adapter *adapter,
862 struct be_tx_obj *txo,
863 struct be_wrb_params *wrb_params,
864 struct sk_buff *skb, u16 head)
866 u32 num_frags = skb_wrb_cnt(skb);
867 struct be_queue_info *txq = &txo->q;
868 struct be_eth_hdr_wrb *hdr = queue_index_node(txq, head);
870 wrb_fill_hdr(adapter, hdr, wrb_params, skb);
871 be_dws_cpu_to_le(hdr, sizeof(*hdr));
873 BUG_ON(txo->sent_skb_list[head]);
874 txo->sent_skb_list[head] = skb;
875 txo->last_req_hdr = head;
876 atomic_add(num_frags, &txq->used);
877 txo->last_req_wrb_cnt = num_frags;
878 txo->pend_wrb_cnt += num_frags;
881 /* Setup a WRB fragment (buffer descriptor) for xmit */
882 static void be_tx_setup_wrb_frag(struct be_tx_obj *txo, dma_addr_t busaddr,
885 struct be_eth_wrb *wrb;
886 struct be_queue_info *txq = &txo->q;
888 wrb = queue_head_node(txq);
889 wrb_fill(wrb, busaddr, len);
893 /* Bring the queue back to the state it was in before be_xmit_enqueue() routine
894 * was invoked. The producer index is restored to the previous packet and the
895 * WRBs of the current packet are unmapped. Invoked to handle tx setup errors.
897 static void be_xmit_restore(struct be_adapter *adapter,
898 struct be_tx_obj *txo, u16 head, bool map_single,
902 struct be_eth_wrb *wrb;
903 struct be_queue_info *txq = &txo->q;
905 dev = &adapter->pdev->dev;
908 /* skip the first wrb (hdr); it's not mapped */
911 wrb = queue_head_node(txq);
912 unmap_tx_frag(dev, wrb, map_single);
914 copied -= le32_to_cpu(wrb->frag_len);
921 /* Enqueue the given packet for transmit. This routine allocates WRBs for the
922 * packet, dma maps the packet buffers and sets up the WRBs. Returns the number
923 * of WRBs used up by the packet.
925 static u32 be_xmit_enqueue(struct be_adapter *adapter, struct be_tx_obj *txo,
927 struct be_wrb_params *wrb_params)
929 u32 i, copied = 0, wrb_cnt = skb_wrb_cnt(skb);
930 struct device *dev = &adapter->pdev->dev;
931 struct be_queue_info *txq = &txo->q;
932 bool map_single = false;
933 u16 head = txq->head;
937 head = be_tx_get_wrb_hdr(txo);
939 if (skb->len > skb->data_len) {
940 len = skb_headlen(skb);
942 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
943 if (dma_mapping_error(dev, busaddr))
946 be_tx_setup_wrb_frag(txo, busaddr, len);
950 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
951 const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
952 len = skb_frag_size(frag);
954 busaddr = skb_frag_dma_map(dev, frag, 0, len, DMA_TO_DEVICE);
955 if (dma_mapping_error(dev, busaddr))
957 be_tx_setup_wrb_frag(txo, busaddr, len);
961 be_tx_setup_wrb_hdr(adapter, txo, wrb_params, skb, head);
963 be_tx_stats_update(txo, skb);
967 adapter->drv_stats.dma_map_errors++;
968 be_xmit_restore(adapter, txo, head, map_single, copied);
972 static inline int qnq_async_evt_rcvd(struct be_adapter *adapter)
974 return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD;
977 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
984 skb = skb_share_check(skb, GFP_ATOMIC);
988 if (skb_vlan_tag_present(skb))
989 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
991 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
993 vlan_tag = adapter->pvid;
994 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
995 * skip VLAN insertion
997 BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1);
1001 skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q),
1008 /* Insert the outer VLAN, if any */
1009 if (adapter->qnq_vid) {
1010 vlan_tag = adapter->qnq_vid;
1011 skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q),
1015 BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1);
1021 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
1023 struct ethhdr *eh = (struct ethhdr *)skb->data;
1024 u16 offset = ETH_HLEN;
1026 if (eh->h_proto == htons(ETH_P_IPV6)) {
1027 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
1029 offset += sizeof(struct ipv6hdr);
1030 if (ip6h->nexthdr != NEXTHDR_TCP &&
1031 ip6h->nexthdr != NEXTHDR_UDP) {
1032 struct ipv6_opt_hdr *ehdr =
1033 (struct ipv6_opt_hdr *)(skb->data + offset);
1035 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
1036 if (ehdr->hdrlen == 0xff)
1043 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
1045 return skb_vlan_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
1048 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb)
1050 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
1053 static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter,
1054 struct sk_buff *skb,
1055 struct be_wrb_params
1058 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
1059 unsigned int eth_hdr_len;
1062 /* For padded packets, BE HW modifies tot_len field in IP header
1063 * incorrecly when VLAN tag is inserted by HW.
1064 * For padded packets, Lancer computes incorrect checksum.
1066 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
1067 VLAN_ETH_HLEN : ETH_HLEN;
1068 if (skb->len <= 60 &&
1069 (lancer_chip(adapter) || skb_vlan_tag_present(skb)) &&
1071 ip = (struct iphdr *)ip_hdr(skb);
1072 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
1075 /* If vlan tag is already inlined in the packet, skip HW VLAN
1076 * tagging in pvid-tagging mode
1078 if (be_pvid_tagging_enabled(adapter) &&
1079 veh->h_vlan_proto == htons(ETH_P_8021Q))
1080 BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1);
1082 /* HW has a bug wherein it will calculate CSUM for VLAN
1083 * pkts even though it is disabled.
1084 * Manually insert VLAN in pkt.
1086 if (skb->ip_summed != CHECKSUM_PARTIAL &&
1087 skb_vlan_tag_present(skb)) {
1088 skb = be_insert_vlan_in_pkt(adapter, skb, wrb_params);
1093 /* HW may lockup when VLAN HW tagging is requested on
1094 * certain ipv6 packets. Drop such pkts if the HW workaround to
1095 * skip HW tagging is not enabled by FW.
1097 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
1098 (adapter->pvid || adapter->qnq_vid) &&
1099 !qnq_async_evt_rcvd(adapter)))
1102 /* Manual VLAN tag insertion to prevent:
1103 * ASIC lockup when the ASIC inserts VLAN tag into
1104 * certain ipv6 packets. Insert VLAN tags in driver,
1105 * and set event, completion, vlan bits accordingly
1108 if (be_ipv6_tx_stall_chk(adapter, skb) &&
1109 be_vlan_tag_tx_chk(adapter, skb)) {
1110 skb = be_insert_vlan_in_pkt(adapter, skb, wrb_params);
1117 dev_kfree_skb_any(skb);
1122 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
1123 struct sk_buff *skb,
1124 struct be_wrb_params *wrb_params)
1126 /* Lancer, SH and BE3 in SRIOV mode have a bug wherein
1127 * packets that are 32b or less may cause a transmit stall
1128 * on that port. The workaround is to pad such packets
1129 * (len <= 32 bytes) to a minimum length of 36b.
1131 if (skb->len <= 32) {
1132 if (skb_put_padto(skb, 36))
1136 if (BEx_chip(adapter) || lancer_chip(adapter)) {
1137 skb = be_lancer_xmit_workarounds(adapter, skb, wrb_params);
1145 static void be_xmit_flush(struct be_adapter *adapter, struct be_tx_obj *txo)
1147 struct be_queue_info *txq = &txo->q;
1148 struct be_eth_hdr_wrb *hdr = queue_index_node(txq, txo->last_req_hdr);
1150 /* Mark the last request eventable if it hasn't been marked already */
1151 if (!(hdr->dw[2] & cpu_to_le32(TX_HDR_WRB_EVT)))
1152 hdr->dw[2] |= cpu_to_le32(TX_HDR_WRB_EVT | TX_HDR_WRB_COMPL);
1154 /* compose a dummy wrb if there are odd set of wrbs to notify */
1155 if (!lancer_chip(adapter) && (txo->pend_wrb_cnt & 1)) {
1156 wrb_fill_dummy(queue_head_node(txq));
1157 queue_head_inc(txq);
1158 atomic_inc(&txq->used);
1159 txo->pend_wrb_cnt++;
1160 hdr->dw[2] &= ~cpu_to_le32(TX_HDR_WRB_NUM_MASK <<
1161 TX_HDR_WRB_NUM_SHIFT);
1162 hdr->dw[2] |= cpu_to_le32((txo->last_req_wrb_cnt + 1) <<
1163 TX_HDR_WRB_NUM_SHIFT);
1165 be_txq_notify(adapter, txo, txo->pend_wrb_cnt);
1166 txo->pend_wrb_cnt = 0;
1169 /* OS2BMC related */
1171 #define DHCP_CLIENT_PORT 68
1172 #define DHCP_SERVER_PORT 67
1173 #define NET_BIOS_PORT1 137
1174 #define NET_BIOS_PORT2 138
1175 #define DHCPV6_RAS_PORT 547
1177 #define is_mc_allowed_on_bmc(adapter, eh) \
1178 (!is_multicast_filt_enabled(adapter) && \
1179 is_multicast_ether_addr(eh->h_dest) && \
1180 !is_broadcast_ether_addr(eh->h_dest))
1182 #define is_bc_allowed_on_bmc(adapter, eh) \
1183 (!is_broadcast_filt_enabled(adapter) && \
1184 is_broadcast_ether_addr(eh->h_dest))
1186 #define is_arp_allowed_on_bmc(adapter, skb) \
1187 (is_arp(skb) && is_arp_filt_enabled(adapter))
1189 #define is_broadcast_packet(eh, adapter) \
1190 (is_multicast_ether_addr(eh->h_dest) && \
1191 !compare_ether_addr(eh->h_dest, adapter->netdev->broadcast))
1193 #define is_arp(skb) (skb->protocol == htons(ETH_P_ARP))
1195 #define is_arp_filt_enabled(adapter) \
1196 (adapter->bmc_filt_mask & (BMC_FILT_BROADCAST_ARP))
1198 #define is_dhcp_client_filt_enabled(adapter) \
1199 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_CLIENT)
1201 #define is_dhcp_srvr_filt_enabled(adapter) \
1202 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_SERVER)
1204 #define is_nbios_filt_enabled(adapter) \
1205 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_NET_BIOS)
1207 #define is_ipv6_na_filt_enabled(adapter) \
1208 (adapter->bmc_filt_mask & \
1209 BMC_FILT_MULTICAST_IPV6_NEIGH_ADVER)
1211 #define is_ipv6_ra_filt_enabled(adapter) \
1212 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RA)
1214 #define is_ipv6_ras_filt_enabled(adapter) \
1215 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RAS)
1217 #define is_broadcast_filt_enabled(adapter) \
1218 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST)
1220 #define is_multicast_filt_enabled(adapter) \
1221 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST)
1223 static bool be_send_pkt_to_bmc(struct be_adapter *adapter,
1224 struct sk_buff **skb)
1226 struct ethhdr *eh = (struct ethhdr *)(*skb)->data;
1227 bool os2bmc = false;
1229 if (!be_is_os2bmc_enabled(adapter))
1232 if (!is_multicast_ether_addr(eh->h_dest))
1235 if (is_mc_allowed_on_bmc(adapter, eh) ||
1236 is_bc_allowed_on_bmc(adapter, eh) ||
1237 is_arp_allowed_on_bmc(adapter, (*skb))) {
1242 if ((*skb)->protocol == htons(ETH_P_IPV6)) {
1243 struct ipv6hdr *hdr = ipv6_hdr((*skb));
1244 u8 nexthdr = hdr->nexthdr;
1246 if (nexthdr == IPPROTO_ICMPV6) {
1247 struct icmp6hdr *icmp6 = icmp6_hdr((*skb));
1249 switch (icmp6->icmp6_type) {
1250 case NDISC_ROUTER_ADVERTISEMENT:
1251 os2bmc = is_ipv6_ra_filt_enabled(adapter);
1253 case NDISC_NEIGHBOUR_ADVERTISEMENT:
1254 os2bmc = is_ipv6_na_filt_enabled(adapter);
1262 if (is_udp_pkt((*skb))) {
1263 struct udphdr *udp = udp_hdr((*skb));
1265 switch (ntohs(udp->dest)) {
1266 case DHCP_CLIENT_PORT:
1267 os2bmc = is_dhcp_client_filt_enabled(adapter);
1269 case DHCP_SERVER_PORT:
1270 os2bmc = is_dhcp_srvr_filt_enabled(adapter);
1272 case NET_BIOS_PORT1:
1273 case NET_BIOS_PORT2:
1274 os2bmc = is_nbios_filt_enabled(adapter);
1276 case DHCPV6_RAS_PORT:
1277 os2bmc = is_ipv6_ras_filt_enabled(adapter);
1284 /* For packets over a vlan, which are destined
1285 * to BMC, asic expects the vlan to be inline in the packet.
1288 *skb = be_insert_vlan_in_pkt(adapter, *skb, NULL);
1293 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
1295 struct be_adapter *adapter = netdev_priv(netdev);
1296 u16 q_idx = skb_get_queue_mapping(skb);
1297 struct be_tx_obj *txo = &adapter->tx_obj[q_idx];
1298 struct be_wrb_params wrb_params = { 0 };
1299 bool flush = !skb->xmit_more;
1302 skb = be_xmit_workarounds(adapter, skb, &wrb_params);
1306 be_get_wrb_params_from_skb(adapter, skb, &wrb_params);
1308 wrb_cnt = be_xmit_enqueue(adapter, txo, skb, &wrb_params);
1309 if (unlikely(!wrb_cnt)) {
1310 dev_kfree_skb_any(skb);
1314 /* if os2bmc is enabled and if the pkt is destined to bmc,
1315 * enqueue the pkt a 2nd time with mgmt bit set.
1317 if (be_send_pkt_to_bmc(adapter, &skb)) {
1318 BE_WRB_F_SET(wrb_params.features, OS2BMC, 1);
1319 wrb_cnt = be_xmit_enqueue(adapter, txo, skb, &wrb_params);
1320 if (unlikely(!wrb_cnt))
1326 if (be_is_txq_full(txo)) {
1327 netif_stop_subqueue(netdev, q_idx);
1328 tx_stats(txo)->tx_stops++;
1331 if (flush || __netif_subqueue_stopped(netdev, q_idx))
1332 be_xmit_flush(adapter, txo);
1334 return NETDEV_TX_OK;
1336 tx_stats(txo)->tx_drv_drops++;
1337 /* Flush the already enqueued tx requests */
1338 if (flush && txo->pend_wrb_cnt)
1339 be_xmit_flush(adapter, txo);
1341 return NETDEV_TX_OK;
1344 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1346 struct be_adapter *adapter = netdev_priv(netdev);
1347 struct device *dev = &adapter->pdev->dev;
1349 if (new_mtu < BE_MIN_MTU || new_mtu > BE_MAX_MTU) {
1350 dev_info(dev, "MTU must be between %d and %d bytes\n",
1351 BE_MIN_MTU, BE_MAX_MTU);
1355 dev_info(dev, "MTU changed from %d to %d bytes\n",
1356 netdev->mtu, new_mtu);
1357 netdev->mtu = new_mtu;
1361 static inline bool be_in_all_promisc(struct be_adapter *adapter)
1363 return (adapter->if_flags & BE_IF_FLAGS_ALL_PROMISCUOUS) ==
1364 BE_IF_FLAGS_ALL_PROMISCUOUS;
1367 static int be_set_vlan_promisc(struct be_adapter *adapter)
1369 struct device *dev = &adapter->pdev->dev;
1372 if (adapter->if_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS)
1375 status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_VLAN_PROMISCUOUS, ON);
1377 dev_info(dev, "Enabled VLAN promiscuous mode\n");
1378 adapter->if_flags |= BE_IF_FLAGS_VLAN_PROMISCUOUS;
1380 dev_err(dev, "Failed to enable VLAN promiscuous mode\n");
1385 static int be_clear_vlan_promisc(struct be_adapter *adapter)
1387 struct device *dev = &adapter->pdev->dev;
1390 status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_VLAN_PROMISCUOUS, OFF);
1392 dev_info(dev, "Disabling VLAN promiscuous mode\n");
1393 adapter->if_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
1399 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1400 * If the user configures more, place BE in vlan promiscuous mode.
1402 static int be_vid_config(struct be_adapter *adapter)
1404 struct device *dev = &adapter->pdev->dev;
1405 u16 vids[BE_NUM_VLANS_SUPPORTED];
1409 /* No need to further configure vids if in promiscuous mode */
1410 if (be_in_all_promisc(adapter))
1413 if (adapter->vlans_added > be_max_vlans(adapter))
1414 return be_set_vlan_promisc(adapter);
1416 /* Construct VLAN Table to give to HW */
1417 for_each_set_bit(i, adapter->vids, VLAN_N_VID)
1418 vids[num++] = cpu_to_le16(i);
1420 status = be_cmd_vlan_config(adapter, adapter->if_handle, vids, num, 0);
1422 dev_err(dev, "Setting HW VLAN filtering failed\n");
1423 /* Set to VLAN promisc mode as setting VLAN filter failed */
1424 if (addl_status(status) == MCC_ADDL_STATUS_INSUFFICIENT_VLANS ||
1425 addl_status(status) ==
1426 MCC_ADDL_STATUS_INSUFFICIENT_RESOURCES)
1427 return be_set_vlan_promisc(adapter);
1428 } else if (adapter->if_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS) {
1429 status = be_clear_vlan_promisc(adapter);
1434 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1436 struct be_adapter *adapter = netdev_priv(netdev);
1439 /* Packets with VID 0 are always received by Lancer by default */
1440 if (lancer_chip(adapter) && vid == 0)
1443 if (test_bit(vid, adapter->vids))
1446 set_bit(vid, adapter->vids);
1447 adapter->vlans_added++;
1449 status = be_vid_config(adapter);
1451 adapter->vlans_added--;
1452 clear_bit(vid, adapter->vids);
1458 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1460 struct be_adapter *adapter = netdev_priv(netdev);
1462 /* Packets with VID 0 are always received by Lancer by default */
1463 if (lancer_chip(adapter) && vid == 0)
1466 clear_bit(vid, adapter->vids);
1467 adapter->vlans_added--;
1469 return be_vid_config(adapter);
1472 static void be_clear_all_promisc(struct be_adapter *adapter)
1474 be_cmd_rx_filter(adapter, BE_IF_FLAGS_ALL_PROMISCUOUS, OFF);
1475 adapter->if_flags &= ~BE_IF_FLAGS_ALL_PROMISCUOUS;
1478 static void be_set_all_promisc(struct be_adapter *adapter)
1480 be_cmd_rx_filter(adapter, BE_IF_FLAGS_ALL_PROMISCUOUS, ON);
1481 adapter->if_flags |= BE_IF_FLAGS_ALL_PROMISCUOUS;
1484 static void be_set_mc_promisc(struct be_adapter *adapter)
1488 if (adapter->if_flags & BE_IF_FLAGS_MCAST_PROMISCUOUS)
1491 status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_MCAST_PROMISCUOUS, ON);
1493 adapter->if_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS;
1496 static void be_set_mc_list(struct be_adapter *adapter)
1500 status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_MULTICAST, ON);
1502 adapter->if_flags &= ~BE_IF_FLAGS_MCAST_PROMISCUOUS;
1504 be_set_mc_promisc(adapter);
1507 static void be_set_uc_list(struct be_adapter *adapter)
1509 struct netdev_hw_addr *ha;
1510 int i = 1; /* First slot is claimed by the Primary MAC */
1512 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
1513 be_cmd_pmac_del(adapter, adapter->if_handle,
1514 adapter->pmac_id[i], 0);
1516 if (netdev_uc_count(adapter->netdev) > be_max_uc(adapter)) {
1517 be_set_all_promisc(adapter);
1521 netdev_for_each_uc_addr(ha, adapter->netdev) {
1522 adapter->uc_macs++; /* First slot is for Primary MAC */
1523 be_cmd_pmac_add(adapter, (u8 *)ha->addr, adapter->if_handle,
1524 &adapter->pmac_id[adapter->uc_macs], 0);
1528 static void be_clear_uc_list(struct be_adapter *adapter)
1532 for (i = 1; i < (adapter->uc_macs + 1); i++)
1533 be_cmd_pmac_del(adapter, adapter->if_handle,
1534 adapter->pmac_id[i], 0);
1535 adapter->uc_macs = 0;
1538 static void be_set_rx_mode(struct net_device *netdev)
1540 struct be_adapter *adapter = netdev_priv(netdev);
1542 if (netdev->flags & IFF_PROMISC) {
1543 be_set_all_promisc(adapter);
1547 /* Interface was previously in promiscuous mode; disable it */
1548 if (be_in_all_promisc(adapter)) {
1549 be_clear_all_promisc(adapter);
1550 if (adapter->vlans_added)
1551 be_vid_config(adapter);
1554 /* Enable multicast promisc if num configured exceeds what we support */
1555 if (netdev->flags & IFF_ALLMULTI ||
1556 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1557 be_set_mc_promisc(adapter);
1561 if (netdev_uc_count(netdev) != adapter->uc_macs)
1562 be_set_uc_list(adapter);
1564 be_set_mc_list(adapter);
1567 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1569 struct be_adapter *adapter = netdev_priv(netdev);
1570 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1573 if (!sriov_enabled(adapter))
1576 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1579 /* Proceed further only if user provided MAC is different
1582 if (ether_addr_equal(mac, vf_cfg->mac_addr))
1585 if (BEx_chip(adapter)) {
1586 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1589 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1590 &vf_cfg->pmac_id, vf + 1);
1592 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1597 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed: %#x",
1599 return be_cmd_status(status);
1602 ether_addr_copy(vf_cfg->mac_addr, mac);
1607 static int be_get_vf_config(struct net_device *netdev, int vf,
1608 struct ifla_vf_info *vi)
1610 struct be_adapter *adapter = netdev_priv(netdev);
1611 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1613 if (!sriov_enabled(adapter))
1616 if (vf >= adapter->num_vfs)
1620 vi->max_tx_rate = vf_cfg->tx_rate;
1621 vi->min_tx_rate = 0;
1622 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1623 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1624 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1625 vi->linkstate = adapter->vf_cfg[vf].plink_tracking;
1626 vi->spoofchk = adapter->vf_cfg[vf].spoofchk;
1631 static int be_set_vf_tvt(struct be_adapter *adapter, int vf, u16 vlan)
1633 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1634 u16 vids[BE_NUM_VLANS_SUPPORTED];
1635 int vf_if_id = vf_cfg->if_handle;
1638 /* Enable Transparent VLAN Tagging */
1639 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1, vf_if_id, 0, 0);
1643 /* Clear pre-programmed VLAN filters on VF if any, if TVT is enabled */
1645 status = be_cmd_vlan_config(adapter, vf_if_id, vids, 1, vf + 1);
1647 dev_info(&adapter->pdev->dev,
1648 "Cleared guest VLANs on VF%d", vf);
1650 /* After TVT is enabled, disallow VFs to program VLAN filters */
1651 if (vf_cfg->privileges & BE_PRIV_FILTMGMT) {
1652 status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges &
1653 ~BE_PRIV_FILTMGMT, vf + 1);
1655 vf_cfg->privileges &= ~BE_PRIV_FILTMGMT;
1660 static int be_clear_vf_tvt(struct be_adapter *adapter, int vf)
1662 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1663 struct device *dev = &adapter->pdev->dev;
1666 /* Reset Transparent VLAN Tagging. */
1667 status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID, vf + 1,
1668 vf_cfg->if_handle, 0, 0);
1672 /* Allow VFs to program VLAN filtering */
1673 if (!(vf_cfg->privileges & BE_PRIV_FILTMGMT)) {
1674 status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges |
1675 BE_PRIV_FILTMGMT, vf + 1);
1677 vf_cfg->privileges |= BE_PRIV_FILTMGMT;
1678 dev_info(dev, "VF%d: FILTMGMT priv enabled", vf);
1683 "Disable/re-enable i/f in VM to clear Transparent VLAN tag");
1687 static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
1689 struct be_adapter *adapter = netdev_priv(netdev);
1690 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1693 if (!sriov_enabled(adapter))
1696 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1700 vlan |= qos << VLAN_PRIO_SHIFT;
1701 status = be_set_vf_tvt(adapter, vf, vlan);
1703 status = be_clear_vf_tvt(adapter, vf);
1707 dev_err(&adapter->pdev->dev,
1708 "VLAN %d config on VF %d failed : %#x\n", vlan, vf,
1710 return be_cmd_status(status);
1713 vf_cfg->vlan_tag = vlan;
1717 static int be_set_vf_tx_rate(struct net_device *netdev, int vf,
1718 int min_tx_rate, int max_tx_rate)
1720 struct be_adapter *adapter = netdev_priv(netdev);
1721 struct device *dev = &adapter->pdev->dev;
1722 int percent_rate, status = 0;
1726 if (!sriov_enabled(adapter))
1729 if (vf >= adapter->num_vfs)
1738 status = be_cmd_link_status_query(adapter, &link_speed,
1744 dev_err(dev, "TX-rate setting not allowed when link is down\n");
1749 if (max_tx_rate < 100 || max_tx_rate > link_speed) {
1750 dev_err(dev, "TX-rate must be between 100 and %d Mbps\n",
1756 /* On Skyhawk the QOS setting must be done only as a % value */
1757 percent_rate = link_speed / 100;
1758 if (skyhawk_chip(adapter) && (max_tx_rate % percent_rate)) {
1759 dev_err(dev, "TX-rate must be a multiple of %d Mbps\n",
1766 status = be_cmd_config_qos(adapter, max_tx_rate, link_speed, vf + 1);
1770 adapter->vf_cfg[vf].tx_rate = max_tx_rate;
1774 dev_err(dev, "TX-rate setting of %dMbps on VF%d failed\n",
1776 return be_cmd_status(status);
1779 static int be_set_vf_link_state(struct net_device *netdev, int vf,
1782 struct be_adapter *adapter = netdev_priv(netdev);
1785 if (!sriov_enabled(adapter))
1788 if (vf >= adapter->num_vfs)
1791 status = be_cmd_set_logical_link_config(adapter, link_state, vf+1);
1793 dev_err(&adapter->pdev->dev,
1794 "Link state change on VF %d failed: %#x\n", vf, status);
1795 return be_cmd_status(status);
1798 adapter->vf_cfg[vf].plink_tracking = link_state;
1803 static int be_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
1805 struct be_adapter *adapter = netdev_priv(netdev);
1806 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1810 if (!sriov_enabled(adapter))
1813 if (vf >= adapter->num_vfs)
1816 if (BEx_chip(adapter))
1819 if (enable == vf_cfg->spoofchk)
1822 spoofchk = enable ? ENABLE_MAC_SPOOFCHK : DISABLE_MAC_SPOOFCHK;
1824 status = be_cmd_set_hsw_config(adapter, 0, vf + 1, vf_cfg->if_handle,
1827 dev_err(&adapter->pdev->dev,
1828 "Spoofchk change on VF %d failed: %#x\n", vf, status);
1829 return be_cmd_status(status);
1832 vf_cfg->spoofchk = enable;
1836 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1839 aic->rx_pkts_prev = rx_pkts;
1840 aic->tx_reqs_prev = tx_pkts;
1844 static int be_get_new_eqd(struct be_eq_obj *eqo)
1846 struct be_adapter *adapter = eqo->adapter;
1848 struct be_aic_obj *aic;
1849 struct be_rx_obj *rxo;
1850 struct be_tx_obj *txo;
1851 u64 rx_pkts = 0, tx_pkts = 0;
1856 aic = &adapter->aic_obj[eqo->idx];
1864 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
1866 start = u64_stats_fetch_begin_irq(&rxo->stats.sync);
1867 rx_pkts += rxo->stats.rx_pkts;
1868 } while (u64_stats_fetch_retry_irq(&rxo->stats.sync, start));
1871 for_all_tx_queues_on_eq(adapter, eqo, txo, i) {
1873 start = u64_stats_fetch_begin_irq(&txo->stats.sync);
1874 tx_pkts += txo->stats.tx_reqs;
1875 } while (u64_stats_fetch_retry_irq(&txo->stats.sync, start));
1878 /* Skip, if wrapped around or first calculation */
1880 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1881 rx_pkts < aic->rx_pkts_prev ||
1882 tx_pkts < aic->tx_reqs_prev) {
1883 be_aic_update(aic, rx_pkts, tx_pkts, now);
1884 return aic->prev_eqd;
1887 delta = jiffies_to_msecs(now - aic->jiffies);
1889 return aic->prev_eqd;
1891 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1892 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1893 eqd = (pps / 15000) << 2;
1897 eqd = min_t(u32, eqd, aic->max_eqd);
1898 eqd = max_t(u32, eqd, aic->min_eqd);
1900 be_aic_update(aic, rx_pkts, tx_pkts, now);
1905 /* For Skyhawk-R only */
1906 static u32 be_get_eq_delay_mult_enc(struct be_eq_obj *eqo)
1908 struct be_adapter *adapter = eqo->adapter;
1909 struct be_aic_obj *aic = &adapter->aic_obj[eqo->idx];
1910 ulong now = jiffies;
1917 if (time_before_eq(now, aic->jiffies) ||
1918 jiffies_to_msecs(now - aic->jiffies) < 1)
1919 eqd = aic->prev_eqd;
1921 eqd = be_get_new_eqd(eqo);
1924 mult_enc = R2I_DLY_ENC_1;
1926 mult_enc = R2I_DLY_ENC_2;
1928 mult_enc = R2I_DLY_ENC_3;
1930 mult_enc = R2I_DLY_ENC_0;
1932 aic->prev_eqd = eqd;
1937 void be_eqd_update(struct be_adapter *adapter, bool force_update)
1939 struct be_set_eqd set_eqd[MAX_EVT_QS];
1940 struct be_aic_obj *aic;
1941 struct be_eq_obj *eqo;
1942 int i, num = 0, eqd;
1944 for_all_evt_queues(adapter, eqo, i) {
1945 aic = &adapter->aic_obj[eqo->idx];
1946 eqd = be_get_new_eqd(eqo);
1947 if (force_update || eqd != aic->prev_eqd) {
1948 set_eqd[num].delay_multiplier = (eqd * 65)/100;
1949 set_eqd[num].eq_id = eqo->q.id;
1950 aic->prev_eqd = eqd;
1956 be_cmd_modify_eqd(adapter, set_eqd, num);
1959 static void be_rx_stats_update(struct be_rx_obj *rxo,
1960 struct be_rx_compl_info *rxcp)
1962 struct be_rx_stats *stats = rx_stats(rxo);
1964 u64_stats_update_begin(&stats->sync);
1966 stats->rx_bytes += rxcp->pkt_size;
1969 stats->rx_vxlan_offload_pkts++;
1970 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1971 stats->rx_mcast_pkts++;
1973 stats->rx_compl_err++;
1974 u64_stats_update_end(&stats->sync);
1977 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1979 /* L4 checksum is not reliable for non TCP/UDP packets.
1980 * Also ignore ipcksm for ipv6 pkts
1982 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1983 (rxcp->ip_csum || rxcp->ipv6) && !rxcp->err;
1986 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
1988 struct be_adapter *adapter = rxo->adapter;
1989 struct be_rx_page_info *rx_page_info;
1990 struct be_queue_info *rxq = &rxo->q;
1991 u16 frag_idx = rxq->tail;
1993 rx_page_info = &rxo->page_info_tbl[frag_idx];
1994 BUG_ON(!rx_page_info->page);
1996 if (rx_page_info->last_frag) {
1997 dma_unmap_page(&adapter->pdev->dev,
1998 dma_unmap_addr(rx_page_info, bus),
1999 adapter->big_page_size, DMA_FROM_DEVICE);
2000 rx_page_info->last_frag = false;
2002 dma_sync_single_for_cpu(&adapter->pdev->dev,
2003 dma_unmap_addr(rx_page_info, bus),
2004 rx_frag_size, DMA_FROM_DEVICE);
2007 queue_tail_inc(rxq);
2008 atomic_dec(&rxq->used);
2009 return rx_page_info;
2012 /* Throwaway the data in the Rx completion */
2013 static void be_rx_compl_discard(struct be_rx_obj *rxo,
2014 struct be_rx_compl_info *rxcp)
2016 struct be_rx_page_info *page_info;
2017 u16 i, num_rcvd = rxcp->num_rcvd;
2019 for (i = 0; i < num_rcvd; i++) {
2020 page_info = get_rx_page_info(rxo);
2021 put_page(page_info->page);
2022 memset(page_info, 0, sizeof(*page_info));
2027 * skb_fill_rx_data forms a complete skb for an ether frame
2028 * indicated by rxcp.
2030 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
2031 struct be_rx_compl_info *rxcp)
2033 struct be_rx_page_info *page_info;
2035 u16 hdr_len, curr_frag_len, remaining;
2038 page_info = get_rx_page_info(rxo);
2039 start = page_address(page_info->page) + page_info->page_offset;
2042 /* Copy data in the first descriptor of this completion */
2043 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
2045 skb->len = curr_frag_len;
2046 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
2047 memcpy(skb->data, start, curr_frag_len);
2048 /* Complete packet has now been moved to data */
2049 put_page(page_info->page);
2051 skb->tail += curr_frag_len;
2054 memcpy(skb->data, start, hdr_len);
2055 skb_shinfo(skb)->nr_frags = 1;
2056 skb_frag_set_page(skb, 0, page_info->page);
2057 skb_shinfo(skb)->frags[0].page_offset =
2058 page_info->page_offset + hdr_len;
2059 skb_frag_size_set(&skb_shinfo(skb)->frags[0],
2060 curr_frag_len - hdr_len);
2061 skb->data_len = curr_frag_len - hdr_len;
2062 skb->truesize += rx_frag_size;
2063 skb->tail += hdr_len;
2065 page_info->page = NULL;
2067 if (rxcp->pkt_size <= rx_frag_size) {
2068 BUG_ON(rxcp->num_rcvd != 1);
2072 /* More frags present for this completion */
2073 remaining = rxcp->pkt_size - curr_frag_len;
2074 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
2075 page_info = get_rx_page_info(rxo);
2076 curr_frag_len = min(remaining, rx_frag_size);
2078 /* Coalesce all frags from the same physical page in one slot */
2079 if (page_info->page_offset == 0) {
2082 skb_frag_set_page(skb, j, page_info->page);
2083 skb_shinfo(skb)->frags[j].page_offset =
2084 page_info->page_offset;
2085 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
2086 skb_shinfo(skb)->nr_frags++;
2088 put_page(page_info->page);
2091 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
2092 skb->len += curr_frag_len;
2093 skb->data_len += curr_frag_len;
2094 skb->truesize += rx_frag_size;
2095 remaining -= curr_frag_len;
2096 page_info->page = NULL;
2098 BUG_ON(j > MAX_SKB_FRAGS);
2101 /* Process the RX completion indicated by rxcp when GRO is disabled */
2102 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
2103 struct be_rx_compl_info *rxcp)
2105 struct be_adapter *adapter = rxo->adapter;
2106 struct net_device *netdev = adapter->netdev;
2107 struct sk_buff *skb;
2109 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
2110 if (unlikely(!skb)) {
2111 rx_stats(rxo)->rx_drops_no_skbs++;
2112 be_rx_compl_discard(rxo, rxcp);
2116 skb_fill_rx_data(rxo, skb, rxcp);
2118 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
2119 skb->ip_summed = CHECKSUM_UNNECESSARY;
2121 skb_checksum_none_assert(skb);
2123 skb->protocol = eth_type_trans(skb, netdev);
2124 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
2125 if (netdev->features & NETIF_F_RXHASH)
2126 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
2128 skb->csum_level = rxcp->tunneled;
2129 skb_mark_napi_id(skb, napi);
2132 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
2134 netif_receive_skb(skb);
2137 /* Process the RX completion indicated by rxcp when GRO is enabled */
2138 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
2139 struct napi_struct *napi,
2140 struct be_rx_compl_info *rxcp)
2142 struct be_adapter *adapter = rxo->adapter;
2143 struct be_rx_page_info *page_info;
2144 struct sk_buff *skb = NULL;
2145 u16 remaining, curr_frag_len;
2148 skb = napi_get_frags(napi);
2150 be_rx_compl_discard(rxo, rxcp);
2154 remaining = rxcp->pkt_size;
2155 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
2156 page_info = get_rx_page_info(rxo);
2158 curr_frag_len = min(remaining, rx_frag_size);
2160 /* Coalesce all frags from the same physical page in one slot */
2161 if (i == 0 || page_info->page_offset == 0) {
2162 /* First frag or Fresh page */
2164 skb_frag_set_page(skb, j, page_info->page);
2165 skb_shinfo(skb)->frags[j].page_offset =
2166 page_info->page_offset;
2167 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
2169 put_page(page_info->page);
2171 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
2172 skb->truesize += rx_frag_size;
2173 remaining -= curr_frag_len;
2174 memset(page_info, 0, sizeof(*page_info));
2176 BUG_ON(j > MAX_SKB_FRAGS);
2178 skb_shinfo(skb)->nr_frags = j + 1;
2179 skb->len = rxcp->pkt_size;
2180 skb->data_len = rxcp->pkt_size;
2181 skb->ip_summed = CHECKSUM_UNNECESSARY;
2182 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
2183 if (adapter->netdev->features & NETIF_F_RXHASH)
2184 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
2186 skb->csum_level = rxcp->tunneled;
2187 skb_mark_napi_id(skb, napi);
2190 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
2192 napi_gro_frags(napi);
2195 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
2196 struct be_rx_compl_info *rxcp)
2198 rxcp->pkt_size = GET_RX_COMPL_V1_BITS(pktsize, compl);
2199 rxcp->vlanf = GET_RX_COMPL_V1_BITS(vtp, compl);
2200 rxcp->err = GET_RX_COMPL_V1_BITS(err, compl);
2201 rxcp->tcpf = GET_RX_COMPL_V1_BITS(tcpf, compl);
2202 rxcp->udpf = GET_RX_COMPL_V1_BITS(udpf, compl);
2203 rxcp->ip_csum = GET_RX_COMPL_V1_BITS(ipcksm, compl);
2204 rxcp->l4_csum = GET_RX_COMPL_V1_BITS(l4_cksm, compl);
2205 rxcp->ipv6 = GET_RX_COMPL_V1_BITS(ip_version, compl);
2206 rxcp->num_rcvd = GET_RX_COMPL_V1_BITS(numfrags, compl);
2207 rxcp->pkt_type = GET_RX_COMPL_V1_BITS(cast_enc, compl);
2208 rxcp->rss_hash = GET_RX_COMPL_V1_BITS(rsshash, compl);
2210 rxcp->qnq = GET_RX_COMPL_V1_BITS(qnq, compl);
2211 rxcp->vlan_tag = GET_RX_COMPL_V1_BITS(vlan_tag, compl);
2213 rxcp->port = GET_RX_COMPL_V1_BITS(port, compl);
2215 GET_RX_COMPL_V1_BITS(tunneled, compl);
2218 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
2219 struct be_rx_compl_info *rxcp)
2221 rxcp->pkt_size = GET_RX_COMPL_V0_BITS(pktsize, compl);
2222 rxcp->vlanf = GET_RX_COMPL_V0_BITS(vtp, compl);
2223 rxcp->err = GET_RX_COMPL_V0_BITS(err, compl);
2224 rxcp->tcpf = GET_RX_COMPL_V0_BITS(tcpf, compl);
2225 rxcp->udpf = GET_RX_COMPL_V0_BITS(udpf, compl);
2226 rxcp->ip_csum = GET_RX_COMPL_V0_BITS(ipcksm, compl);
2227 rxcp->l4_csum = GET_RX_COMPL_V0_BITS(l4_cksm, compl);
2228 rxcp->ipv6 = GET_RX_COMPL_V0_BITS(ip_version, compl);
2229 rxcp->num_rcvd = GET_RX_COMPL_V0_BITS(numfrags, compl);
2230 rxcp->pkt_type = GET_RX_COMPL_V0_BITS(cast_enc, compl);
2231 rxcp->rss_hash = GET_RX_COMPL_V0_BITS(rsshash, compl);
2233 rxcp->qnq = GET_RX_COMPL_V0_BITS(qnq, compl);
2234 rxcp->vlan_tag = GET_RX_COMPL_V0_BITS(vlan_tag, compl);
2236 rxcp->port = GET_RX_COMPL_V0_BITS(port, compl);
2237 rxcp->ip_frag = GET_RX_COMPL_V0_BITS(ip_frag, compl);
2240 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
2242 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
2243 struct be_rx_compl_info *rxcp = &rxo->rxcp;
2244 struct be_adapter *adapter = rxo->adapter;
2246 /* For checking the valid bit it is Ok to use either definition as the
2247 * valid bit is at the same position in both v0 and v1 Rx compl */
2248 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
2252 be_dws_le_to_cpu(compl, sizeof(*compl));
2254 if (adapter->be3_native)
2255 be_parse_rx_compl_v1(compl, rxcp);
2257 be_parse_rx_compl_v0(compl, rxcp);
2263 /* In QNQ modes, if qnq bit is not set, then the packet was
2264 * tagged only with the transparent outer vlan-tag and must
2265 * not be treated as a vlan packet by host
2267 if (be_is_qnq_mode(adapter) && !rxcp->qnq)
2270 if (!lancer_chip(adapter))
2271 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
2273 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
2274 !test_bit(rxcp->vlan_tag, adapter->vids))
2278 /* As the compl has been parsed, reset it; we wont touch it again */
2279 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
2281 queue_tail_inc(&rxo->cq);
2285 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
2287 u32 order = get_order(size);
2291 return alloc_pages(gfp, order);
2295 * Allocate a page, split it to fragments of size rx_frag_size and post as
2296 * receive buffers to BE
2298 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp, u32 frags_needed)
2300 struct be_adapter *adapter = rxo->adapter;
2301 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
2302 struct be_queue_info *rxq = &rxo->q;
2303 struct page *pagep = NULL;
2304 struct device *dev = &adapter->pdev->dev;
2305 struct be_eth_rx_d *rxd;
2306 u64 page_dmaaddr = 0, frag_dmaaddr;
2307 u32 posted, page_offset = 0, notify = 0;
2309 page_info = &rxo->page_info_tbl[rxq->head];
2310 for (posted = 0; posted < frags_needed && !page_info->page; posted++) {
2312 pagep = be_alloc_pages(adapter->big_page_size, gfp);
2313 if (unlikely(!pagep)) {
2314 rx_stats(rxo)->rx_post_fail++;
2317 page_dmaaddr = dma_map_page(dev, pagep, 0,
2318 adapter->big_page_size,
2320 if (dma_mapping_error(dev, page_dmaaddr)) {
2323 adapter->drv_stats.dma_map_errors++;
2329 page_offset += rx_frag_size;
2331 page_info->page_offset = page_offset;
2332 page_info->page = pagep;
2334 rxd = queue_head_node(rxq);
2335 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
2336 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
2337 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
2339 /* Any space left in the current big page for another frag? */
2340 if ((page_offset + rx_frag_size + rx_frag_size) >
2341 adapter->big_page_size) {
2343 page_info->last_frag = true;
2344 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
2346 dma_unmap_addr_set(page_info, bus, frag_dmaaddr);
2349 prev_page_info = page_info;
2350 queue_head_inc(rxq);
2351 page_info = &rxo->page_info_tbl[rxq->head];
2354 /* Mark the last frag of a page when we break out of the above loop
2355 * with no more slots available in the RXQ
2358 prev_page_info->last_frag = true;
2359 dma_unmap_addr_set(prev_page_info, bus, page_dmaaddr);
2363 atomic_add(posted, &rxq->used);
2364 if (rxo->rx_post_starved)
2365 rxo->rx_post_starved = false;
2367 notify = min(MAX_NUM_POST_ERX_DB, posted);
2368 be_rxq_notify(adapter, rxq->id, notify);
2371 } else if (atomic_read(&rxq->used) == 0) {
2372 /* Let be_worker replenish when memory is available */
2373 rxo->rx_post_starved = true;
2377 static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo)
2379 struct be_queue_info *tx_cq = &txo->cq;
2380 struct be_tx_compl_info *txcp = &txo->txcp;
2381 struct be_eth_tx_compl *compl = queue_tail_node(tx_cq);
2383 if (compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
2386 /* Ensure load ordering of valid bit dword and other dwords below */
2388 be_dws_le_to_cpu(compl, sizeof(*compl));
2390 txcp->status = GET_TX_COMPL_BITS(status, compl);
2391 txcp->end_index = GET_TX_COMPL_BITS(wrb_index, compl);
2393 compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
2394 queue_tail_inc(tx_cq);
2398 static u16 be_tx_compl_process(struct be_adapter *adapter,
2399 struct be_tx_obj *txo, u16 last_index)
2401 struct sk_buff **sent_skbs = txo->sent_skb_list;
2402 struct be_queue_info *txq = &txo->q;
2403 u16 frag_index, num_wrbs = 0;
2404 struct sk_buff *skb = NULL;
2405 bool unmap_skb_hdr = false;
2406 struct be_eth_wrb *wrb;
2409 if (sent_skbs[txq->tail]) {
2410 /* Free skb from prev req */
2412 dev_consume_skb_any(skb);
2413 skb = sent_skbs[txq->tail];
2414 sent_skbs[txq->tail] = NULL;
2415 queue_tail_inc(txq); /* skip hdr wrb */
2417 unmap_skb_hdr = true;
2419 wrb = queue_tail_node(txq);
2420 frag_index = txq->tail;
2421 unmap_tx_frag(&adapter->pdev->dev, wrb,
2422 (unmap_skb_hdr && skb_headlen(skb)));
2423 unmap_skb_hdr = false;
2424 queue_tail_inc(txq);
2426 } while (frag_index != last_index);
2427 dev_consume_skb_any(skb);
2432 /* Return the number of events in the event queue */
2433 static inline int events_get(struct be_eq_obj *eqo)
2435 struct be_eq_entry *eqe;
2439 eqe = queue_tail_node(&eqo->q);
2446 queue_tail_inc(&eqo->q);
2452 /* Leaves the EQ is disarmed state */
2453 static void be_eq_clean(struct be_eq_obj *eqo)
2455 int num = events_get(eqo);
2457 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num, 0);
2460 /* Free posted rx buffers that were not used */
2461 static void be_rxq_clean(struct be_rx_obj *rxo)
2463 struct be_queue_info *rxq = &rxo->q;
2464 struct be_rx_page_info *page_info;
2466 while (atomic_read(&rxq->used) > 0) {
2467 page_info = get_rx_page_info(rxo);
2468 put_page(page_info->page);
2469 memset(page_info, 0, sizeof(*page_info));
2471 BUG_ON(atomic_read(&rxq->used));
2476 static void be_rx_cq_clean(struct be_rx_obj *rxo)
2478 struct be_queue_info *rx_cq = &rxo->cq;
2479 struct be_rx_compl_info *rxcp;
2480 struct be_adapter *adapter = rxo->adapter;
2483 /* Consume pending rx completions.
2484 * Wait for the flush completion (identified by zero num_rcvd)
2485 * to arrive. Notify CQ even when there are no more CQ entries
2486 * for HW to flush partially coalesced CQ entries.
2487 * In Lancer, there is no need to wait for flush compl.
2490 rxcp = be_rx_compl_get(rxo);
2492 if (lancer_chip(adapter))
2495 if (flush_wait++ > 50 ||
2496 be_check_error(adapter,
2498 dev_warn(&adapter->pdev->dev,
2499 "did not receive flush compl\n");
2502 be_cq_notify(adapter, rx_cq->id, true, 0);
2505 be_rx_compl_discard(rxo, rxcp);
2506 be_cq_notify(adapter, rx_cq->id, false, 1);
2507 if (rxcp->num_rcvd == 0)
2512 /* After cleanup, leave the CQ in unarmed state */
2513 be_cq_notify(adapter, rx_cq->id, false, 0);
2516 static void be_tx_compl_clean(struct be_adapter *adapter)
2518 u16 end_idx, notified_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
2519 struct device *dev = &adapter->pdev->dev;
2520 struct be_tx_compl_info *txcp;
2521 struct be_queue_info *txq;
2522 struct be_tx_obj *txo;
2523 int i, pending_txqs;
2525 /* Stop polling for compls when HW has been silent for 10ms */
2527 pending_txqs = adapter->num_tx_qs;
2529 for_all_tx_queues(adapter, txo, i) {
2533 while ((txcp = be_tx_compl_get(txo))) {
2535 be_tx_compl_process(adapter, txo,
2540 be_cq_notify(adapter, txo->cq.id, false, cmpl);
2541 atomic_sub(num_wrbs, &txq->used);
2544 if (!be_is_tx_compl_pending(txo))
2548 if (pending_txqs == 0 || ++timeo > 10 ||
2549 be_check_error(adapter, BE_ERROR_HW))
2555 /* Free enqueued TX that was never notified to HW */
2556 for_all_tx_queues(adapter, txo, i) {
2559 if (atomic_read(&txq->used)) {
2560 dev_info(dev, "txq%d: cleaning %d pending tx-wrbs\n",
2561 i, atomic_read(&txq->used));
2562 notified_idx = txq->tail;
2563 end_idx = txq->tail;
2564 index_adv(&end_idx, atomic_read(&txq->used) - 1,
2566 /* Use the tx-compl process logic to handle requests
2567 * that were not sent to the HW.
2569 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2570 atomic_sub(num_wrbs, &txq->used);
2571 BUG_ON(atomic_read(&txq->used));
2572 txo->pend_wrb_cnt = 0;
2573 /* Since hw was never notified of these requests,
2576 txq->head = notified_idx;
2577 txq->tail = notified_idx;
2582 static void be_evt_queues_destroy(struct be_adapter *adapter)
2584 struct be_eq_obj *eqo;
2587 for_all_evt_queues(adapter, eqo, i) {
2588 if (eqo->q.created) {
2590 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2591 napi_hash_del(&eqo->napi);
2592 netif_napi_del(&eqo->napi);
2593 free_cpumask_var(eqo->affinity_mask);
2595 be_queue_free(adapter, &eqo->q);
2599 static int be_evt_queues_create(struct be_adapter *adapter)
2601 struct be_queue_info *eq;
2602 struct be_eq_obj *eqo;
2603 struct be_aic_obj *aic;
2606 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2607 adapter->cfg_num_qs);
2609 for_all_evt_queues(adapter, eqo, i) {
2610 int numa_node = dev_to_node(&adapter->pdev->dev);
2612 aic = &adapter->aic_obj[i];
2613 eqo->adapter = adapter;
2615 aic->max_eqd = BE_MAX_EQD;
2619 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2620 sizeof(struct be_eq_entry));
2624 rc = be_cmd_eq_create(adapter, eqo);
2628 if (!zalloc_cpumask_var(&eqo->affinity_mask, GFP_KERNEL))
2630 cpumask_set_cpu(cpumask_local_spread(i, numa_node),
2631 eqo->affinity_mask);
2632 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2634 napi_hash_add(&eqo->napi);
2639 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2641 struct be_queue_info *q;
2643 q = &adapter->mcc_obj.q;
2645 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2646 be_queue_free(adapter, q);
2648 q = &adapter->mcc_obj.cq;
2650 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2651 be_queue_free(adapter, q);
2654 /* Must be called only after TX qs are created as MCC shares TX EQ */
2655 static int be_mcc_queues_create(struct be_adapter *adapter)
2657 struct be_queue_info *q, *cq;
2659 cq = &adapter->mcc_obj.cq;
2660 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2661 sizeof(struct be_mcc_compl)))
2664 /* Use the default EQ for MCC completions */
2665 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2668 q = &adapter->mcc_obj.q;
2669 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2670 goto mcc_cq_destroy;
2672 if (be_cmd_mccq_create(adapter, q, cq))
2678 be_queue_free(adapter, q);
2680 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2682 be_queue_free(adapter, cq);
2687 static void be_tx_queues_destroy(struct be_adapter *adapter)
2689 struct be_queue_info *q;
2690 struct be_tx_obj *txo;
2693 for_all_tx_queues(adapter, txo, i) {
2696 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2697 be_queue_free(adapter, q);
2701 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2702 be_queue_free(adapter, q);
2706 static int be_tx_qs_create(struct be_adapter *adapter)
2708 struct be_queue_info *cq;
2709 struct be_tx_obj *txo;
2710 struct be_eq_obj *eqo;
2713 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2715 for_all_tx_queues(adapter, txo, i) {
2717 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2718 sizeof(struct be_eth_tx_compl));
2722 u64_stats_init(&txo->stats.sync);
2723 u64_stats_init(&txo->stats.sync_compl);
2725 /* If num_evt_qs is less than num_tx_qs, then more than
2726 * one txq share an eq
2728 eqo = &adapter->eq_obj[i % adapter->num_evt_qs];
2729 status = be_cmd_cq_create(adapter, cq, &eqo->q, false, 3);
2733 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2734 sizeof(struct be_eth_wrb));
2738 status = be_cmd_txq_create(adapter, txo);
2742 netif_set_xps_queue(adapter->netdev, eqo->affinity_mask,
2746 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2747 adapter->num_tx_qs);
2751 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2753 struct be_queue_info *q;
2754 struct be_rx_obj *rxo;
2757 for_all_rx_queues(adapter, rxo, i) {
2760 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2761 be_queue_free(adapter, q);
2765 static int be_rx_cqs_create(struct be_adapter *adapter)
2767 struct be_queue_info *eq, *cq;
2768 struct be_rx_obj *rxo;
2771 /* We can create as many RSS rings as there are EQs. */
2772 adapter->num_rss_qs = adapter->num_evt_qs;
2774 /* We'll use RSS only if atleast 2 RSS rings are supported. */
2775 if (adapter->num_rss_qs <= 1)
2776 adapter->num_rss_qs = 0;
2778 adapter->num_rx_qs = adapter->num_rss_qs + adapter->need_def_rxq;
2780 /* When the interface is not capable of RSS rings (and there is no
2781 * need to create a default RXQ) we'll still need one RXQ
2783 if (adapter->num_rx_qs == 0)
2784 adapter->num_rx_qs = 1;
2786 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2787 for_all_rx_queues(adapter, rxo, i) {
2788 rxo->adapter = adapter;
2790 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2791 sizeof(struct be_eth_rx_compl));
2795 u64_stats_init(&rxo->stats.sync);
2796 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2797 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2802 dev_info(&adapter->pdev->dev,
2803 "created %d RX queue(s)\n", adapter->num_rx_qs);
2807 static irqreturn_t be_intx(int irq, void *dev)
2809 struct be_eq_obj *eqo = dev;
2810 struct be_adapter *adapter = eqo->adapter;
2813 /* IRQ is not expected when NAPI is scheduled as the EQ
2814 * will not be armed.
2815 * But, this can happen on Lancer INTx where it takes
2816 * a while to de-assert INTx or in BE2 where occasionaly
2817 * an interrupt may be raised even when EQ is unarmed.
2818 * If NAPI is already scheduled, then counting & notifying
2819 * events will orphan them.
2821 if (napi_schedule_prep(&eqo->napi)) {
2822 num_evts = events_get(eqo);
2823 __napi_schedule(&eqo->napi);
2825 eqo->spurious_intr = 0;
2827 be_eq_notify(adapter, eqo->q.id, false, true, num_evts, 0);
2829 /* Return IRQ_HANDLED only for the the first spurious intr
2830 * after a valid intr to stop the kernel from branding
2831 * this irq as a bad one!
2833 if (num_evts || eqo->spurious_intr++ == 0)
2839 static irqreturn_t be_msix(int irq, void *dev)
2841 struct be_eq_obj *eqo = dev;
2843 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0, 0);
2844 napi_schedule(&eqo->napi);
2848 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2850 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2853 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2854 int budget, int polling)
2856 struct be_adapter *adapter = rxo->adapter;
2857 struct be_queue_info *rx_cq = &rxo->cq;
2858 struct be_rx_compl_info *rxcp;
2860 u32 frags_consumed = 0;
2862 for (work_done = 0; work_done < budget; work_done++) {
2863 rxcp = be_rx_compl_get(rxo);
2867 /* Is it a flush compl that has no data */
2868 if (unlikely(rxcp->num_rcvd == 0))
2871 /* Discard compl with partial DMA Lancer B0 */
2872 if (unlikely(!rxcp->pkt_size)) {
2873 be_rx_compl_discard(rxo, rxcp);
2877 /* On BE drop pkts that arrive due to imperfect filtering in
2878 * promiscuous mode on some skews
2880 if (unlikely(rxcp->port != adapter->port_num &&
2881 !lancer_chip(adapter))) {
2882 be_rx_compl_discard(rxo, rxcp);
2886 /* Don't do gro when we're busy_polling */
2887 if (do_gro(rxcp) && polling != BUSY_POLLING)
2888 be_rx_compl_process_gro(rxo, napi, rxcp);
2890 be_rx_compl_process(rxo, napi, rxcp);
2893 frags_consumed += rxcp->num_rcvd;
2894 be_rx_stats_update(rxo, rxcp);
2898 be_cq_notify(adapter, rx_cq->id, true, work_done);
2900 /* When an rx-obj gets into post_starved state, just
2901 * let be_worker do the posting.
2903 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2904 !rxo->rx_post_starved)
2905 be_post_rx_frags(rxo, GFP_ATOMIC,
2906 max_t(u32, MAX_RX_POST,
2913 static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status)
2916 case BE_TX_COMP_HDR_PARSE_ERR:
2917 tx_stats(txo)->tx_hdr_parse_err++;
2919 case BE_TX_COMP_NDMA_ERR:
2920 tx_stats(txo)->tx_dma_err++;
2922 case BE_TX_COMP_ACL_ERR:
2923 tx_stats(txo)->tx_spoof_check_err++;
2928 static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status)
2931 case LANCER_TX_COMP_LSO_ERR:
2932 tx_stats(txo)->tx_tso_err++;
2934 case LANCER_TX_COMP_HSW_DROP_MAC_ERR:
2935 case LANCER_TX_COMP_HSW_DROP_VLAN_ERR:
2936 tx_stats(txo)->tx_spoof_check_err++;
2938 case LANCER_TX_COMP_QINQ_ERR:
2939 tx_stats(txo)->tx_qinq_err++;
2941 case LANCER_TX_COMP_PARITY_ERR:
2942 tx_stats(txo)->tx_internal_parity_err++;
2944 case LANCER_TX_COMP_DMA_ERR:
2945 tx_stats(txo)->tx_dma_err++;
2950 static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2953 int num_wrbs = 0, work_done = 0;
2954 struct be_tx_compl_info *txcp;
2956 while ((txcp = be_tx_compl_get(txo))) {
2957 num_wrbs += be_tx_compl_process(adapter, txo, txcp->end_index);
2961 if (lancer_chip(adapter))
2962 lancer_update_tx_err(txo, txcp->status);
2964 be_update_tx_err(txo, txcp->status);
2969 be_cq_notify(adapter, txo->cq.id, true, work_done);
2970 atomic_sub(num_wrbs, &txo->q.used);
2972 /* As Tx wrbs have been freed up, wake up netdev queue
2973 * if it was stopped due to lack of tx wrbs. */
2974 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2975 be_can_txq_wake(txo)) {
2976 netif_wake_subqueue(adapter->netdev, idx);
2979 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2980 tx_stats(txo)->tx_compl += work_done;
2981 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2985 #ifdef CONFIG_NET_RX_BUSY_POLL
2986 static inline bool be_lock_napi(struct be_eq_obj *eqo)
2990 spin_lock(&eqo->lock); /* BH is already disabled */
2991 if (eqo->state & BE_EQ_LOCKED) {
2992 WARN_ON(eqo->state & BE_EQ_NAPI);
2993 eqo->state |= BE_EQ_NAPI_YIELD;
2996 eqo->state = BE_EQ_NAPI;
2998 spin_unlock(&eqo->lock);
3002 static inline void be_unlock_napi(struct be_eq_obj *eqo)
3004 spin_lock(&eqo->lock); /* BH is already disabled */
3006 WARN_ON(eqo->state & (BE_EQ_POLL | BE_EQ_NAPI_YIELD));
3007 eqo->state = BE_EQ_IDLE;
3009 spin_unlock(&eqo->lock);
3012 static inline bool be_lock_busy_poll(struct be_eq_obj *eqo)
3016 spin_lock_bh(&eqo->lock);
3017 if (eqo->state & BE_EQ_LOCKED) {
3018 eqo->state |= BE_EQ_POLL_YIELD;
3021 eqo->state |= BE_EQ_POLL;
3023 spin_unlock_bh(&eqo->lock);
3027 static inline void be_unlock_busy_poll(struct be_eq_obj *eqo)
3029 spin_lock_bh(&eqo->lock);
3031 WARN_ON(eqo->state & (BE_EQ_NAPI));
3032 eqo->state = BE_EQ_IDLE;
3034 spin_unlock_bh(&eqo->lock);
3037 static inline void be_enable_busy_poll(struct be_eq_obj *eqo)
3039 spin_lock_init(&eqo->lock);
3040 eqo->state = BE_EQ_IDLE;
3043 static inline void be_disable_busy_poll(struct be_eq_obj *eqo)
3047 /* It's enough to just acquire napi lock on the eqo to stop
3048 * be_busy_poll() from processing any queueus.
3050 while (!be_lock_napi(eqo))
3056 #else /* CONFIG_NET_RX_BUSY_POLL */
3058 static inline bool be_lock_napi(struct be_eq_obj *eqo)
3063 static inline void be_unlock_napi(struct be_eq_obj *eqo)
3067 static inline bool be_lock_busy_poll(struct be_eq_obj *eqo)
3072 static inline void be_unlock_busy_poll(struct be_eq_obj *eqo)
3076 static inline void be_enable_busy_poll(struct be_eq_obj *eqo)
3080 static inline void be_disable_busy_poll(struct be_eq_obj *eqo)
3083 #endif /* CONFIG_NET_RX_BUSY_POLL */
3085 int be_poll(struct napi_struct *napi, int budget)
3087 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
3088 struct be_adapter *adapter = eqo->adapter;
3089 int max_work = 0, work, i, num_evts;
3090 struct be_rx_obj *rxo;
3091 struct be_tx_obj *txo;
3094 num_evts = events_get(eqo);
3096 for_all_tx_queues_on_eq(adapter, eqo, txo, i)
3097 be_process_tx(adapter, txo, i);
3099 if (be_lock_napi(eqo)) {
3100 /* This loop will iterate twice for EQ0 in which
3101 * completions of the last RXQ (default one) are also processed
3102 * For other EQs the loop iterates only once
3104 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
3105 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
3106 max_work = max(work, max_work);
3108 be_unlock_napi(eqo);
3113 if (is_mcc_eqo(eqo))
3114 be_process_mcc(adapter);
3116 if (max_work < budget) {
3117 napi_complete(napi);
3119 /* Skyhawk EQ_DB has a provision to set the rearm to interrupt
3120 * delay via a delay multiplier encoding value
3122 if (skyhawk_chip(adapter))
3123 mult_enc = be_get_eq_delay_mult_enc(eqo);
3125 be_eq_notify(adapter, eqo->q.id, true, false, num_evts,
3128 /* As we'll continue in polling mode, count and clear events */
3129 be_eq_notify(adapter, eqo->q.id, false, false, num_evts, 0);
3134 #ifdef CONFIG_NET_RX_BUSY_POLL
3135 static int be_busy_poll(struct napi_struct *napi)
3137 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
3138 struct be_adapter *adapter = eqo->adapter;
3139 struct be_rx_obj *rxo;
3142 if (!be_lock_busy_poll(eqo))
3143 return LL_FLUSH_BUSY;
3145 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
3146 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
3151 be_unlock_busy_poll(eqo);
3156 void be_detect_error(struct be_adapter *adapter)
3158 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
3159 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
3161 struct device *dev = &adapter->pdev->dev;
3163 if (be_check_error(adapter, BE_ERROR_HW))
3166 if (lancer_chip(adapter)) {
3167 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3168 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
3169 be_set_error(adapter, BE_ERROR_UE);
3170 sliport_err1 = ioread32(adapter->db +
3171 SLIPORT_ERROR1_OFFSET);
3172 sliport_err2 = ioread32(adapter->db +
3173 SLIPORT_ERROR2_OFFSET);
3174 /* Do not log error messages if its a FW reset */
3175 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
3176 sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
3177 dev_info(dev, "Firmware update in progress\n");
3179 dev_err(dev, "Error detected in the card\n");
3180 dev_err(dev, "ERR: sliport status 0x%x\n",
3182 dev_err(dev, "ERR: sliport error1 0x%x\n",
3184 dev_err(dev, "ERR: sliport error2 0x%x\n",
3189 ue_lo = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_LOW);
3190 ue_hi = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_HIGH);
3191 ue_lo_mask = ioread32(adapter->pcicfg +
3192 PCICFG_UE_STATUS_LOW_MASK);
3193 ue_hi_mask = ioread32(adapter->pcicfg +
3194 PCICFG_UE_STATUS_HI_MASK);
3196 ue_lo = (ue_lo & ~ue_lo_mask);
3197 ue_hi = (ue_hi & ~ue_hi_mask);
3199 /* On certain platforms BE hardware can indicate spurious UEs.
3200 * Allow HW to stop working completely in case of a real UE.
3201 * Hence not setting the hw_error for UE detection.
3204 if (ue_lo || ue_hi) {
3206 "Unrecoverable Error detected in the adapter");
3207 dev_err(dev, "Please reboot server to recover");
3208 if (skyhawk_chip(adapter))
3209 be_set_error(adapter, BE_ERROR_UE);
3211 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
3213 dev_err(dev, "UE: %s bit set\n",
3214 ue_status_low_desc[i]);
3216 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
3218 dev_err(dev, "UE: %s bit set\n",
3219 ue_status_hi_desc[i]);
3225 static void be_msix_disable(struct be_adapter *adapter)
3227 if (msix_enabled(adapter)) {
3228 pci_disable_msix(adapter->pdev);
3229 adapter->num_msix_vec = 0;
3230 adapter->num_msix_roce_vec = 0;
3234 static int be_msix_enable(struct be_adapter *adapter)
3237 struct device *dev = &adapter->pdev->dev;
3239 /* If RoCE is supported, program the max number of NIC vectors that
3240 * may be configured via set-channels, along with vectors needed for
3241 * RoCe. Else, just program the number we'll use initially.
3243 if (be_roce_supported(adapter))
3244 num_vec = min_t(int, 2 * be_max_eqs(adapter),
3245 2 * num_online_cpus());
3247 num_vec = adapter->cfg_num_qs;
3249 for (i = 0; i < num_vec; i++)
3250 adapter->msix_entries[i].entry = i;
3252 num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
3253 MIN_MSIX_VECTORS, num_vec);
3257 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
3258 adapter->num_msix_roce_vec = num_vec / 2;
3259 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
3260 adapter->num_msix_roce_vec);
3263 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
3265 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
3266 adapter->num_msix_vec);
3270 dev_warn(dev, "MSIx enable failed\n");
3272 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
3273 if (be_virtfn(adapter))
3278 static inline int be_msix_vec_get(struct be_adapter *adapter,
3279 struct be_eq_obj *eqo)
3281 return adapter->msix_entries[eqo->msix_idx].vector;
3284 static int be_msix_register(struct be_adapter *adapter)
3286 struct net_device *netdev = adapter->netdev;
3287 struct be_eq_obj *eqo;
3290 for_all_evt_queues(adapter, eqo, i) {
3291 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
3292 vec = be_msix_vec_get(adapter, eqo);
3293 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
3297 irq_set_affinity_hint(vec, eqo->affinity_mask);
3302 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
3303 free_irq(be_msix_vec_get(adapter, eqo), eqo);
3304 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
3306 be_msix_disable(adapter);
3310 static int be_irq_register(struct be_adapter *adapter)
3312 struct net_device *netdev = adapter->netdev;
3315 if (msix_enabled(adapter)) {
3316 status = be_msix_register(adapter);
3319 /* INTx is not supported for VF */
3320 if (be_virtfn(adapter))
3324 /* INTx: only the first EQ is used */
3325 netdev->irq = adapter->pdev->irq;
3326 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
3327 &adapter->eq_obj[0]);
3329 dev_err(&adapter->pdev->dev,
3330 "INTx request IRQ failed - err %d\n", status);
3334 adapter->isr_registered = true;
3338 static void be_irq_unregister(struct be_adapter *adapter)
3340 struct net_device *netdev = adapter->netdev;
3341 struct be_eq_obj *eqo;
3344 if (!adapter->isr_registered)
3348 if (!msix_enabled(adapter)) {
3349 free_irq(netdev->irq, &adapter->eq_obj[0]);
3354 for_all_evt_queues(adapter, eqo, i) {
3355 vec = be_msix_vec_get(adapter, eqo);
3356 irq_set_affinity_hint(vec, NULL);
3361 adapter->isr_registered = false;
3364 static void be_rx_qs_destroy(struct be_adapter *adapter)
3366 struct be_queue_info *q;
3367 struct be_rx_obj *rxo;
3370 for_all_rx_queues(adapter, rxo, i) {
3373 /* If RXQs are destroyed while in an "out of buffer"
3374 * state, there is a possibility of an HW stall on
3375 * Lancer. So, post 64 buffers to each queue to relieve
3376 * the "out of buffer" condition.
3377 * Make sure there's space in the RXQ before posting.
3379 if (lancer_chip(adapter)) {
3380 be_rx_cq_clean(rxo);
3381 if (atomic_read(&q->used) == 0)
3382 be_post_rx_frags(rxo, GFP_KERNEL,
3386 be_cmd_rxq_destroy(adapter, q);
3387 be_rx_cq_clean(rxo);
3390 be_queue_free(adapter, q);
3394 static void be_disable_if_filters(struct be_adapter *adapter)
3396 be_cmd_pmac_del(adapter, adapter->if_handle,
3397 adapter->pmac_id[0], 0);
3399 be_clear_uc_list(adapter);
3401 /* The IFACE flags are enabled in the open path and cleared
3402 * in the close path. When a VF gets detached from the host and
3403 * assigned to a VM the following happens:
3404 * - VF's IFACE flags get cleared in the detach path
3405 * - IFACE create is issued by the VF in the attach path
3406 * Due to a bug in the BE3/Skyhawk-R FW
3407 * (Lancer FW doesn't have the bug), the IFACE capability flags
3408 * specified along with the IFACE create cmd issued by a VF are not
3409 * honoured by FW. As a consequence, if a *new* driver
3410 * (that enables/disables IFACE flags in open/close)
3411 * is loaded in the host and an *old* driver is * used by a VM/VF,
3412 * the IFACE gets created *without* the needed flags.
3413 * To avoid this, disable RX-filter flags only for Lancer.
3415 if (lancer_chip(adapter)) {
3416 be_cmd_rx_filter(adapter, BE_IF_ALL_FILT_FLAGS, OFF);
3417 adapter->if_flags &= ~BE_IF_ALL_FILT_FLAGS;
3421 static int be_close(struct net_device *netdev)
3423 struct be_adapter *adapter = netdev_priv(netdev);
3424 struct be_eq_obj *eqo;
3427 /* This protection is needed as be_close() may be called even when the
3428 * adapter is in cleared state (after eeh perm failure)
3430 if (!(adapter->flags & BE_FLAGS_SETUP_DONE))
3433 be_disable_if_filters(adapter);
3435 be_roce_dev_close(adapter);
3437 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
3438 for_all_evt_queues(adapter, eqo, i) {
3439 napi_disable(&eqo->napi);
3440 be_disable_busy_poll(eqo);
3442 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
3445 be_async_mcc_disable(adapter);
3447 /* Wait for all pending tx completions to arrive so that
3448 * all tx skbs are freed.
3450 netif_tx_disable(netdev);
3451 be_tx_compl_clean(adapter);
3453 be_rx_qs_destroy(adapter);
3455 for_all_evt_queues(adapter, eqo, i) {
3456 if (msix_enabled(adapter))
3457 synchronize_irq(be_msix_vec_get(adapter, eqo));
3459 synchronize_irq(netdev->irq);
3463 be_irq_unregister(adapter);
3468 static int be_rx_qs_create(struct be_adapter *adapter)
3470 struct rss_info *rss = &adapter->rss_info;
3471 u8 rss_key[RSS_HASH_KEY_LEN];
3472 struct be_rx_obj *rxo;
3475 for_all_rx_queues(adapter, rxo, i) {
3476 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
3477 sizeof(struct be_eth_rx_d));
3482 if (adapter->need_def_rxq || !adapter->num_rss_qs) {
3483 rxo = default_rxo(adapter);
3484 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
3485 rx_frag_size, adapter->if_handle,
3486 false, &rxo->rss_id);
3491 for_all_rss_queues(adapter, rxo, i) {
3492 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
3493 rx_frag_size, adapter->if_handle,
3494 true, &rxo->rss_id);
3499 if (be_multi_rxq(adapter)) {
3500 for (j = 0; j < RSS_INDIR_TABLE_LEN; j += adapter->num_rss_qs) {
3501 for_all_rss_queues(adapter, rxo, i) {
3502 if ((j + i) >= RSS_INDIR_TABLE_LEN)
3504 rss->rsstable[j + i] = rxo->rss_id;
3505 rss->rss_queue[j + i] = i;
3508 rss->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
3509 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
3511 if (!BEx_chip(adapter))
3512 rss->rss_flags |= RSS_ENABLE_UDP_IPV4 |
3513 RSS_ENABLE_UDP_IPV6;
3515 /* Disable RSS, if only default RX Q is created */
3516 rss->rss_flags = RSS_ENABLE_NONE;
3519 netdev_rss_key_fill(rss_key, RSS_HASH_KEY_LEN);
3520 rc = be_cmd_rss_config(adapter, rss->rsstable, rss->rss_flags,
3523 rss->rss_flags = RSS_ENABLE_NONE;
3527 memcpy(rss->rss_hkey, rss_key, RSS_HASH_KEY_LEN);
3529 /* Post 1 less than RXQ-len to avoid head being equal to tail,
3530 * which is a queue empty condition
3532 for_all_rx_queues(adapter, rxo, i)
3533 be_post_rx_frags(rxo, GFP_KERNEL, RX_Q_LEN - 1);
3538 static int be_enable_if_filters(struct be_adapter *adapter)
3542 status = be_cmd_rx_filter(adapter, BE_IF_EN_FLAGS, ON);
3546 /* For BE3 VFs, the PF programs the initial MAC address */
3547 if (!(BEx_chip(adapter) && be_virtfn(adapter))) {
3548 status = be_cmd_pmac_add(adapter, adapter->netdev->dev_addr,
3550 &adapter->pmac_id[0], 0);
3555 if (adapter->vlans_added)
3556 be_vid_config(adapter);
3558 be_set_rx_mode(adapter->netdev);
3563 static int be_open(struct net_device *netdev)
3565 struct be_adapter *adapter = netdev_priv(netdev);
3566 struct be_eq_obj *eqo;
3567 struct be_rx_obj *rxo;
3568 struct be_tx_obj *txo;
3572 status = be_rx_qs_create(adapter);
3576 status = be_enable_if_filters(adapter);
3580 status = be_irq_register(adapter);
3584 for_all_rx_queues(adapter, rxo, i)
3585 be_cq_notify(adapter, rxo->cq.id, true, 0);
3587 for_all_tx_queues(adapter, txo, i)
3588 be_cq_notify(adapter, txo->cq.id, true, 0);
3590 be_async_mcc_enable(adapter);
3592 for_all_evt_queues(adapter, eqo, i) {
3593 napi_enable(&eqo->napi);
3594 be_enable_busy_poll(eqo);
3595 be_eq_notify(adapter, eqo->q.id, true, true, 0, 0);
3597 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
3599 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
3601 be_link_status_update(adapter, link_status);
3603 netif_tx_start_all_queues(netdev);
3604 be_roce_dev_open(adapter);
3606 #ifdef CONFIG_BE2NET_VXLAN
3607 if (skyhawk_chip(adapter))
3608 vxlan_get_rx_port(netdev);
3613 be_close(adapter->netdev);
3617 static int be_setup_wol(struct be_adapter *adapter, bool enable)
3619 struct device *dev = &adapter->pdev->dev;
3620 struct be_dma_mem cmd;
3626 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
3627 cmd.va = dma_zalloc_coherent(dev, cmd.size, &cmd.dma, GFP_KERNEL);
3632 status = pci_write_config_dword(adapter->pdev,
3633 PCICFG_PM_CONTROL_OFFSET,
3634 PCICFG_PM_CONTROL_MASK);
3636 dev_err(dev, "Could not enable Wake-on-lan\n");
3640 ether_addr_copy(mac, adapter->netdev->dev_addr);
3643 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
3644 pci_enable_wake(adapter->pdev, PCI_D3hot, enable);
3645 pci_enable_wake(adapter->pdev, PCI_D3cold, enable);
3647 dma_free_coherent(dev, cmd.size, cmd.va, cmd.dma);
3651 static void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
3655 addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0);
3657 mac[5] = (u8)(addr & 0xFF);
3658 mac[4] = (u8)((addr >> 8) & 0xFF);
3659 mac[3] = (u8)((addr >> 16) & 0xFF);
3660 /* Use the OUI from the current MAC address */
3661 memcpy(mac, adapter->netdev->dev_addr, 3);
3665 * Generate a seed MAC address from the PF MAC Address using jhash.
3666 * MAC Address for VFs are assigned incrementally starting from the seed.
3667 * These addresses are programmed in the ASIC by the PF and the VF driver
3668 * queries for the MAC address during its probe.
3670 static int be_vf_eth_addr_config(struct be_adapter *adapter)
3675 struct be_vf_cfg *vf_cfg;
3677 be_vf_eth_addr_generate(adapter, mac);
3679 for_all_vfs(adapter, vf_cfg, vf) {
3680 if (BEx_chip(adapter))
3681 status = be_cmd_pmac_add(adapter, mac,
3683 &vf_cfg->pmac_id, vf + 1);
3685 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
3689 dev_err(&adapter->pdev->dev,
3690 "Mac address assignment failed for VF %d\n",
3693 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
3700 static int be_vfs_mac_query(struct be_adapter *adapter)
3704 struct be_vf_cfg *vf_cfg;
3706 for_all_vfs(adapter, vf_cfg, vf) {
3707 status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
3708 mac, vf_cfg->if_handle,
3712 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
3717 static void be_vf_clear(struct be_adapter *adapter)
3719 struct be_vf_cfg *vf_cfg;
3722 if (pci_vfs_assigned(adapter->pdev)) {
3723 dev_warn(&adapter->pdev->dev,
3724 "VFs are assigned to VMs: not disabling VFs\n");
3728 pci_disable_sriov(adapter->pdev);
3730 for_all_vfs(adapter, vf_cfg, vf) {
3731 if (BEx_chip(adapter))
3732 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
3733 vf_cfg->pmac_id, vf + 1);
3735 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
3738 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
3741 kfree(adapter->vf_cfg);
3742 adapter->num_vfs = 0;
3743 adapter->flags &= ~BE_FLAGS_SRIOV_ENABLED;
3746 static void be_clear_queues(struct be_adapter *adapter)
3748 be_mcc_queues_destroy(adapter);
3749 be_rx_cqs_destroy(adapter);
3750 be_tx_queues_destroy(adapter);
3751 be_evt_queues_destroy(adapter);
3754 static void be_cancel_worker(struct be_adapter *adapter)
3756 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
3757 cancel_delayed_work_sync(&adapter->work);
3758 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
3762 static void be_cancel_err_detection(struct be_adapter *adapter)
3764 if (adapter->flags & BE_FLAGS_ERR_DETECTION_SCHEDULED) {
3765 cancel_delayed_work_sync(&adapter->be_err_detection_work);
3766 adapter->flags &= ~BE_FLAGS_ERR_DETECTION_SCHEDULED;
3770 #ifdef CONFIG_BE2NET_VXLAN
3771 static void be_disable_vxlan_offloads(struct be_adapter *adapter)
3773 struct net_device *netdev = adapter->netdev;
3775 if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)
3776 be_cmd_manage_iface(adapter, adapter->if_handle,
3777 OP_CONVERT_TUNNEL_TO_NORMAL);
3779 if (adapter->vxlan_port)
3780 be_cmd_set_vxlan_port(adapter, 0);
3782 adapter->flags &= ~BE_FLAGS_VXLAN_OFFLOADS;
3783 adapter->vxlan_port = 0;
3785 netdev->hw_enc_features = 0;
3786 netdev->hw_features &= ~(NETIF_F_GSO_UDP_TUNNEL);
3787 netdev->features &= ~(NETIF_F_GSO_UDP_TUNNEL);
3791 static u16 be_calculate_vf_qs(struct be_adapter *adapter, u16 num_vfs)
3793 struct be_resources res = adapter->pool_res;
3796 /* Distribute the queue resources equally among the PF and it's VFs
3797 * Do not distribute queue resources in multi-channel configuration.
3799 if (num_vfs && !be_is_mc(adapter)) {
3800 /* If number of VFs requested is 8 less than max supported,
3801 * assign 8 queue pairs to the PF and divide the remaining
3802 * resources evenly among the VFs
3804 if (num_vfs < (be_max_vfs(adapter) - 8))
3805 num_vf_qs = (res.max_rss_qs - 8) / num_vfs;
3807 num_vf_qs = res.max_rss_qs / num_vfs;
3809 /* Skyhawk-R chip supports only MAX_RSS_IFACES RSS capable
3810 * interfaces per port. Provide RSS on VFs, only if number
3811 * of VFs requested is less than MAX_RSS_IFACES limit.
3813 if (num_vfs >= MAX_RSS_IFACES)
3819 static int be_clear(struct be_adapter *adapter)
3821 struct pci_dev *pdev = adapter->pdev;
3824 be_cancel_worker(adapter);
3826 if (sriov_enabled(adapter))
3827 be_vf_clear(adapter);
3829 /* Re-configure FW to distribute resources evenly across max-supported
3830 * number of VFs, only when VFs are not already enabled.
3832 if (skyhawk_chip(adapter) && be_physfn(adapter) &&
3833 !pci_vfs_assigned(pdev)) {
3834 num_vf_qs = be_calculate_vf_qs(adapter,
3835 pci_sriov_get_totalvfs(pdev));
3836 be_cmd_set_sriov_config(adapter, adapter->pool_res,
3837 pci_sriov_get_totalvfs(pdev),
3841 #ifdef CONFIG_BE2NET_VXLAN
3842 be_disable_vxlan_offloads(adapter);
3844 kfree(adapter->pmac_id);
3845 adapter->pmac_id = NULL;
3847 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
3849 be_clear_queues(adapter);
3851 be_msix_disable(adapter);
3852 adapter->flags &= ~BE_FLAGS_SETUP_DONE;
3856 static int be_vfs_if_create(struct be_adapter *adapter)
3858 struct be_resources res = {0};
3859 u32 cap_flags, en_flags, vf;
3860 struct be_vf_cfg *vf_cfg;
3863 /* If a FW profile exists, then cap_flags are updated */
3864 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3865 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3867 for_all_vfs(adapter, vf_cfg, vf) {
3868 if (!BE3_chip(adapter)) {
3869 status = be_cmd_get_profile_config(adapter, &res,
3873 cap_flags = res.if_cap_flags;
3874 /* Prevent VFs from enabling VLAN promiscuous
3877 cap_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
3881 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
3882 BE_IF_FLAGS_BROADCAST |
3883 BE_IF_FLAGS_MULTICAST |
3884 BE_IF_FLAGS_PASS_L3L4_ERRORS);
3885 status = be_cmd_if_create(adapter, cap_flags, en_flags,
3886 &vf_cfg->if_handle, vf + 1);
3894 static int be_vf_setup_init(struct be_adapter *adapter)
3896 struct be_vf_cfg *vf_cfg;
3899 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
3901 if (!adapter->vf_cfg)
3904 for_all_vfs(adapter, vf_cfg, vf) {
3905 vf_cfg->if_handle = -1;
3906 vf_cfg->pmac_id = -1;
3911 static int be_vf_setup(struct be_adapter *adapter)
3913 struct device *dev = &adapter->pdev->dev;
3914 struct be_vf_cfg *vf_cfg;
3915 int status, old_vfs, vf;
3918 old_vfs = pci_num_vf(adapter->pdev);
3920 status = be_vf_setup_init(adapter);
3925 for_all_vfs(adapter, vf_cfg, vf) {
3926 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3931 status = be_vfs_mac_query(adapter);
3935 status = be_vfs_if_create(adapter);
3939 status = be_vf_eth_addr_config(adapter);
3944 for_all_vfs(adapter, vf_cfg, vf) {
3945 /* Allow VFs to programs MAC/VLAN filters */
3946 status = be_cmd_get_fn_privileges(adapter, &vf_cfg->privileges,
3948 if (!status && !(vf_cfg->privileges & BE_PRIV_FILTMGMT)) {
3949 status = be_cmd_set_fn_privileges(adapter,
3950 vf_cfg->privileges |
3954 vf_cfg->privileges |= BE_PRIV_FILTMGMT;
3955 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3960 /* Allow full available bandwidth */
3962 be_cmd_config_qos(adapter, 0, 0, vf + 1);
3964 status = be_cmd_get_hsw_config(adapter, NULL, vf + 1,
3965 vf_cfg->if_handle, NULL,
3968 vf_cfg->spoofchk = spoofchk;
3971 be_cmd_enable_vf(adapter, vf + 1);
3972 be_cmd_set_logical_link_config(adapter,
3973 IFLA_VF_LINK_STATE_AUTO,
3979 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3981 dev_err(dev, "SRIOV enable failed\n");
3982 adapter->num_vfs = 0;
3987 adapter->flags |= BE_FLAGS_SRIOV_ENABLED;
3990 dev_err(dev, "VF setup failed\n");
3991 be_vf_clear(adapter);
3995 /* Converting function_mode bits on BE3 to SH mc_type enums */
3997 static u8 be_convert_mc_type(u32 function_mode)
3999 if (function_mode & VNIC_MODE && function_mode & QNQ_MODE)
4001 else if (function_mode & QNQ_MODE)
4003 else if (function_mode & VNIC_MODE)
4005 else if (function_mode & UMC_ENABLED)
4011 /* On BE2/BE3 FW does not suggest the supported limits */
4012 static void BEx_get_resources(struct be_adapter *adapter,
4013 struct be_resources *res)
4015 bool use_sriov = adapter->num_vfs ? 1 : 0;
4017 if (be_physfn(adapter))
4018 res->max_uc_mac = BE_UC_PMAC_COUNT;
4020 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
4022 adapter->mc_type = be_convert_mc_type(adapter->function_mode);
4024 if (be_is_mc(adapter)) {
4025 /* Assuming that there are 4 channels per port,
4026 * when multi-channel is enabled
4028 if (be_is_qnq_mode(adapter))
4029 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
4031 /* In a non-qnq multichannel mode, the pvid
4032 * takes up one vlan entry
4034 res->max_vlans = (BE_NUM_VLANS_SUPPORTED / 4) - 1;
4036 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
4039 res->max_mcast_mac = BE_MAX_MC;
4041 /* 1) For BE3 1Gb ports, FW does not support multiple TXQs
4042 * 2) Create multiple TX rings on a BE3-R multi-channel interface
4043 * *only* if it is RSS-capable.
4045 if (BE2_chip(adapter) || use_sriov || (adapter->port_num > 1) ||
4046 be_virtfn(adapter) ||
4047 (be_is_mc(adapter) &&
4048 !(adapter->function_caps & BE_FUNCTION_CAPS_RSS))) {
4050 } else if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) {
4051 struct be_resources super_nic_res = {0};
4053 /* On a SuperNIC profile, the driver needs to use the
4054 * GET_PROFILE_CONFIG cmd to query the per-function TXQ limits
4056 be_cmd_get_profile_config(adapter, &super_nic_res,
4057 RESOURCE_LIMITS, 0);
4058 /* Some old versions of BE3 FW don't report max_tx_qs value */
4059 res->max_tx_qs = super_nic_res.max_tx_qs ? : BE3_MAX_TX_QS;
4061 res->max_tx_qs = BE3_MAX_TX_QS;
4064 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
4065 !use_sriov && be_physfn(adapter))
4066 res->max_rss_qs = (adapter->be3_native) ?
4067 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
4068 res->max_rx_qs = res->max_rss_qs + 1;
4070 if (be_physfn(adapter))
4071 res->max_evt_qs = (be_max_vfs(adapter) > 0) ?
4072 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
4074 res->max_evt_qs = 1;
4076 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
4077 res->if_cap_flags &= ~BE_IF_FLAGS_DEFQ_RSS;
4078 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
4079 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
4082 static void be_setup_init(struct be_adapter *adapter)
4084 adapter->vlan_prio_bmap = 0xff;
4085 adapter->phy.link_speed = -1;
4086 adapter->if_handle = -1;
4087 adapter->be3_native = false;
4088 adapter->if_flags = 0;
4089 if (be_physfn(adapter))
4090 adapter->cmd_privileges = MAX_PRIVILEGES;
4092 adapter->cmd_privileges = MIN_PRIVILEGES;
4095 static int be_get_sriov_config(struct be_adapter *adapter)
4097 struct be_resources res = {0};
4098 int max_vfs, old_vfs;
4100 be_cmd_get_profile_config(adapter, &res, RESOURCE_LIMITS, 0);
4102 /* Some old versions of BE3 FW don't report max_vfs value */
4103 if (BE3_chip(adapter) && !res.max_vfs) {
4104 max_vfs = pci_sriov_get_totalvfs(adapter->pdev);
4105 res.max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
4108 adapter->pool_res = res;
4110 /* If during previous unload of the driver, the VFs were not disabled,
4111 * then we cannot rely on the PF POOL limits for the TotalVFs value.
4112 * Instead use the TotalVFs value stored in the pci-dev struct.
4114 old_vfs = pci_num_vf(adapter->pdev);
4116 dev_info(&adapter->pdev->dev, "%d VFs are already enabled\n",
4119 adapter->pool_res.max_vfs =
4120 pci_sriov_get_totalvfs(adapter->pdev);
4121 adapter->num_vfs = old_vfs;
4127 static void be_alloc_sriov_res(struct be_adapter *adapter)
4129 int old_vfs = pci_num_vf(adapter->pdev);
4133 be_get_sriov_config(adapter);
4136 pci_sriov_set_totalvfs(adapter->pdev, be_max_vfs(adapter));
4138 /* When the HW is in SRIOV capable configuration, the PF-pool
4139 * resources are given to PF during driver load, if there are no
4140 * old VFs. This facility is not available in BE3 FW.
4141 * Also, this is done by FW in Lancer chip.
4143 if (skyhawk_chip(adapter) && be_max_vfs(adapter) && !old_vfs) {
4144 num_vf_qs = be_calculate_vf_qs(adapter, 0);
4145 status = be_cmd_set_sriov_config(adapter, adapter->pool_res, 0,
4148 dev_err(&adapter->pdev->dev,
4149 "Failed to optimize SRIOV resources\n");
4153 static int be_get_resources(struct be_adapter *adapter)
4155 struct device *dev = &adapter->pdev->dev;
4156 struct be_resources res = {0};
4159 if (BEx_chip(adapter)) {
4160 BEx_get_resources(adapter, &res);
4164 /* For Lancer, SH etc read per-function resource limits from FW.
4165 * GET_FUNC_CONFIG returns per function guaranteed limits.
4166 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
4168 if (!BEx_chip(adapter)) {
4169 status = be_cmd_get_func_config(adapter, &res);
4173 /* If a deafault RXQ must be created, we'll use up one RSSQ*/
4174 if (res.max_rss_qs && res.max_rss_qs == res.max_rx_qs &&
4175 !(res.if_cap_flags & BE_IF_FLAGS_DEFQ_RSS))
4176 res.max_rss_qs -= 1;
4178 /* If RoCE may be enabled stash away half the EQs for RoCE */
4179 if (be_roce_supported(adapter))
4180 res.max_evt_qs /= 2;
4184 /* If FW supports RSS default queue, then skip creating non-RSS
4185 * queue for non-IP traffic.
4187 adapter->need_def_rxq = (be_if_cap_flags(adapter) &
4188 BE_IF_FLAGS_DEFQ_RSS) ? 0 : 1;
4190 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
4191 be_max_txqs(adapter), be_max_rxqs(adapter),
4192 be_max_rss(adapter), be_max_eqs(adapter),
4193 be_max_vfs(adapter));
4194 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
4195 be_max_uc(adapter), be_max_mc(adapter),
4196 be_max_vlans(adapter));
4198 /* Sanitize cfg_num_qs based on HW and platform limits */
4199 adapter->cfg_num_qs = min_t(u16, netif_get_num_default_rss_queues(),
4200 be_max_qs(adapter));
4204 static int be_get_config(struct be_adapter *adapter)
4209 status = be_cmd_query_fw_cfg(adapter);
4213 if (BEx_chip(adapter)) {
4214 level = be_cmd_get_fw_log_level(adapter);
4215 adapter->msg_enable =
4216 level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4219 be_cmd_get_acpi_wol_cap(adapter);
4221 be_cmd_query_port_name(adapter);
4223 if (be_physfn(adapter)) {
4224 status = be_cmd_get_active_profile(adapter, &profile_id);
4226 dev_info(&adapter->pdev->dev,
4227 "Using profile 0x%x\n", profile_id);
4230 status = be_get_resources(adapter);
4234 adapter->pmac_id = kcalloc(be_max_uc(adapter),
4235 sizeof(*adapter->pmac_id), GFP_KERNEL);
4236 if (!adapter->pmac_id)
4242 static int be_mac_setup(struct be_adapter *adapter)
4247 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
4248 status = be_cmd_get_perm_mac(adapter, mac);
4252 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
4253 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
4259 static void be_schedule_worker(struct be_adapter *adapter)
4261 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4262 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
4265 static void be_schedule_err_detection(struct be_adapter *adapter)
4267 schedule_delayed_work(&adapter->be_err_detection_work,
4268 msecs_to_jiffies(1000));
4269 adapter->flags |= BE_FLAGS_ERR_DETECTION_SCHEDULED;
4272 static int be_setup_queues(struct be_adapter *adapter)
4274 struct net_device *netdev = adapter->netdev;
4277 status = be_evt_queues_create(adapter);
4281 status = be_tx_qs_create(adapter);
4285 status = be_rx_cqs_create(adapter);
4289 status = be_mcc_queues_create(adapter);
4293 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
4297 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
4303 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
4307 int be_update_queues(struct be_adapter *adapter)
4309 struct net_device *netdev = adapter->netdev;
4312 if (netif_running(netdev))
4315 be_cancel_worker(adapter);
4317 /* If any vectors have been shared with RoCE we cannot re-program
4320 if (!adapter->num_msix_roce_vec)
4321 be_msix_disable(adapter);
4323 be_clear_queues(adapter);
4325 if (!msix_enabled(adapter)) {
4326 status = be_msix_enable(adapter);
4331 status = be_setup_queues(adapter);
4335 be_schedule_worker(adapter);
4337 if (netif_running(netdev))
4338 status = be_open(netdev);
4343 static inline int fw_major_num(const char *fw_ver)
4345 int fw_major = 0, i;
4347 i = sscanf(fw_ver, "%d.", &fw_major);
4354 /* If any VFs are already enabled don't FLR the PF */
4355 static bool be_reset_required(struct be_adapter *adapter)
4357 return pci_num_vf(adapter->pdev) ? false : true;
4360 /* Wait for the FW to be ready and perform the required initialization */
4361 static int be_func_init(struct be_adapter *adapter)
4365 status = be_fw_wait_ready(adapter);
4369 if (be_reset_required(adapter)) {
4370 status = be_cmd_reset_function(adapter);
4374 /* Wait for interrupts to quiesce after an FLR */
4377 /* We can clear all errors when function reset succeeds */
4378 be_clear_error(adapter, BE_CLEAR_ALL);
4381 /* Tell FW we're ready to fire cmds */
4382 status = be_cmd_fw_init(adapter);
4386 /* Allow interrupts for other ULPs running on NIC function */
4387 be_intr_set(adapter, true);
4392 static int be_setup(struct be_adapter *adapter)
4394 struct device *dev = &adapter->pdev->dev;
4398 status = be_func_init(adapter);
4402 be_setup_init(adapter);
4404 if (!lancer_chip(adapter))
4405 be_cmd_req_native_mode(adapter);
4407 /* Need to invoke this cmd first to get the PCI Function Number */
4408 status = be_cmd_get_cntl_attributes(adapter);
4412 if (!BE2_chip(adapter) && be_physfn(adapter))
4413 be_alloc_sriov_res(adapter);
4415 status = be_get_config(adapter);
4419 status = be_msix_enable(adapter);
4423 /* will enable all the needed filter flags in be_open() */
4424 en_flags = BE_IF_FLAGS_RSS | BE_IF_FLAGS_DEFQ_RSS;
4425 en_flags = en_flags & be_if_cap_flags(adapter);
4426 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
4427 &adapter->if_handle, 0);
4431 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
4433 status = be_setup_queues(adapter);
4438 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
4440 status = be_mac_setup(adapter);
4444 be_cmd_get_fw_ver(adapter);
4445 dev_info(dev, "FW version is %s\n", adapter->fw_ver);
4447 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
4448 dev_err(dev, "Firmware on card is old(%s), IRQs may not work",
4450 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
4453 status = be_cmd_set_flow_control(adapter, adapter->tx_fc,
4456 be_cmd_get_flow_control(adapter, &adapter->tx_fc,
4459 dev_info(&adapter->pdev->dev, "HW Flow control - TX:%d RX:%d\n",
4460 adapter->tx_fc, adapter->rx_fc);
4462 if (be_physfn(adapter))
4463 be_cmd_set_logical_link_config(adapter,
4464 IFLA_VF_LINK_STATE_AUTO, 0);
4466 if (adapter->num_vfs)
4467 be_vf_setup(adapter);
4469 status = be_cmd_get_phy_info(adapter);
4470 if (!status && be_pause_supported(adapter))
4471 adapter->phy.fc_autoneg = 1;
4473 be_schedule_worker(adapter);
4474 adapter->flags |= BE_FLAGS_SETUP_DONE;
4481 #ifdef CONFIG_NET_POLL_CONTROLLER
4482 static void be_netpoll(struct net_device *netdev)
4484 struct be_adapter *adapter = netdev_priv(netdev);
4485 struct be_eq_obj *eqo;
4488 for_all_evt_queues(adapter, eqo, i) {
4489 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0, 0);
4490 napi_schedule(&eqo->napi);
4495 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
4497 static bool phy_flashing_required(struct be_adapter *adapter)
4499 return (adapter->phy.phy_type == PHY_TYPE_TN_8022 &&
4500 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
4503 static bool is_comp_in_ufi(struct be_adapter *adapter,
4504 struct flash_section_info *fsec, int type)
4506 int i = 0, img_type = 0;
4507 struct flash_section_info_g2 *fsec_g2 = NULL;
4509 if (BE2_chip(adapter))
4510 fsec_g2 = (struct flash_section_info_g2 *)fsec;
4512 for (i = 0; i < MAX_FLASH_COMP; i++) {
4514 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
4516 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
4518 if (img_type == type)
4525 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
4527 const struct firmware *fw)
4529 struct flash_section_info *fsec = NULL;
4530 const u8 *p = fw->data;
4533 while (p < (fw->data + fw->size)) {
4534 fsec = (struct flash_section_info *)p;
4535 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
4542 static int be_check_flash_crc(struct be_adapter *adapter, const u8 *p,
4543 u32 img_offset, u32 img_size, int hdr_size,
4544 u16 img_optype, bool *crc_match)
4550 status = be_cmd_get_flash_crc(adapter, crc, img_optype, img_offset,
4555 crc_offset = hdr_size + img_offset + img_size - 4;
4557 /* Skip flashing, if crc of flashed region matches */
4558 if (!memcmp(crc, p + crc_offset, 4))
4566 static int be_flash(struct be_adapter *adapter, const u8 *img,
4567 struct be_dma_mem *flash_cmd, int optype, int img_size,
4570 u32 flash_op, num_bytes, total_bytes = img_size, bytes_sent = 0;
4571 struct be_cmd_write_flashrom *req = flash_cmd->va;
4574 while (total_bytes) {
4575 num_bytes = min_t(u32, 32*1024, total_bytes);
4577 total_bytes -= num_bytes;
4580 if (optype == OPTYPE_PHY_FW)
4581 flash_op = FLASHROM_OPER_PHY_FLASH;
4583 flash_op = FLASHROM_OPER_FLASH;
4585 if (optype == OPTYPE_PHY_FW)
4586 flash_op = FLASHROM_OPER_PHY_SAVE;
4588 flash_op = FLASHROM_OPER_SAVE;
4591 memcpy(req->data_buf, img, num_bytes);
4593 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
4594 flash_op, img_offset +
4595 bytes_sent, num_bytes);
4596 if (base_status(status) == MCC_STATUS_ILLEGAL_REQUEST &&
4597 optype == OPTYPE_PHY_FW)
4602 bytes_sent += num_bytes;
4607 /* For BE2, BE3 and BE3-R */
4608 static int be_flash_BEx(struct be_adapter *adapter,
4609 const struct firmware *fw,
4610 struct be_dma_mem *flash_cmd, int num_of_images)
4612 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
4613 struct device *dev = &adapter->pdev->dev;
4614 struct flash_section_info *fsec = NULL;
4615 int status, i, filehdr_size, num_comp;
4616 const struct flash_comp *pflashcomp;
4620 struct flash_comp gen3_flash_types[] = {
4621 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
4622 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
4623 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
4624 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
4625 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
4626 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
4627 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
4628 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
4629 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
4630 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
4631 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
4632 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
4633 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
4634 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
4635 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
4636 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
4637 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
4638 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
4639 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
4640 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
4643 struct flash_comp gen2_flash_types[] = {
4644 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
4645 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
4646 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
4647 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
4648 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
4649 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
4650 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
4651 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
4652 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
4653 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
4654 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
4655 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
4656 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
4657 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
4658 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
4659 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
4662 if (BE3_chip(adapter)) {
4663 pflashcomp = gen3_flash_types;
4664 filehdr_size = sizeof(struct flash_file_hdr_g3);
4665 num_comp = ARRAY_SIZE(gen3_flash_types);
4667 pflashcomp = gen2_flash_types;
4668 filehdr_size = sizeof(struct flash_file_hdr_g2);
4669 num_comp = ARRAY_SIZE(gen2_flash_types);
4673 /* Get flash section info*/
4674 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
4676 dev_err(dev, "Invalid Cookie. FW image may be corrupted\n");
4679 for (i = 0; i < num_comp; i++) {
4680 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
4683 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
4684 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
4687 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
4688 !phy_flashing_required(adapter))
4691 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
4692 status = be_check_flash_crc(adapter, fw->data,
4693 pflashcomp[i].offset,
4697 OPTYPE_REDBOOT, &crc_match);
4700 "Could not get CRC for 0x%x region\n",
4701 pflashcomp[i].optype);
4709 p = fw->data + filehdr_size + pflashcomp[i].offset +
4711 if (p + pflashcomp[i].size > fw->data + fw->size)
4714 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
4715 pflashcomp[i].size, 0);
4717 dev_err(dev, "Flashing section type 0x%x failed\n",
4718 pflashcomp[i].img_type);
4725 static u16 be_get_img_optype(struct flash_section_entry fsec_entry)
4727 u32 img_type = le32_to_cpu(fsec_entry.type);
4728 u16 img_optype = le16_to_cpu(fsec_entry.optype);
4730 if (img_optype != 0xFFFF)
4734 case IMAGE_FIRMWARE_iSCSI:
4735 img_optype = OPTYPE_ISCSI_ACTIVE;
4737 case IMAGE_BOOT_CODE:
4738 img_optype = OPTYPE_REDBOOT;
4740 case IMAGE_OPTION_ROM_ISCSI:
4741 img_optype = OPTYPE_BIOS;
4743 case IMAGE_OPTION_ROM_PXE:
4744 img_optype = OPTYPE_PXE_BIOS;
4746 case IMAGE_OPTION_ROM_FCoE:
4747 img_optype = OPTYPE_FCOE_BIOS;
4749 case IMAGE_FIRMWARE_BACKUP_iSCSI:
4750 img_optype = OPTYPE_ISCSI_BACKUP;
4753 img_optype = OPTYPE_NCSI_FW;
4755 case IMAGE_FLASHISM_JUMPVECTOR:
4756 img_optype = OPTYPE_FLASHISM_JUMPVECTOR;
4758 case IMAGE_FIRMWARE_PHY:
4759 img_optype = OPTYPE_SH_PHY_FW;
4761 case IMAGE_REDBOOT_DIR:
4762 img_optype = OPTYPE_REDBOOT_DIR;
4764 case IMAGE_REDBOOT_CONFIG:
4765 img_optype = OPTYPE_REDBOOT_CONFIG;
4768 img_optype = OPTYPE_UFI_DIR;
4777 static int be_flash_skyhawk(struct be_adapter *adapter,
4778 const struct firmware *fw,
4779 struct be_dma_mem *flash_cmd, int num_of_images)
4781 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
4782 bool crc_match, old_fw_img, flash_offset_support = true;
4783 struct device *dev = &adapter->pdev->dev;
4784 struct flash_section_info *fsec = NULL;
4785 u32 img_offset, img_size, img_type;
4786 u16 img_optype, flash_optype;
4787 int status, i, filehdr_size;
4790 filehdr_size = sizeof(struct flash_file_hdr_g3);
4791 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
4793 dev_err(dev, "Invalid Cookie. FW image may be corrupted\n");
4798 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
4799 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
4800 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
4801 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
4802 img_optype = be_get_img_optype(fsec->fsec_entry[i]);
4803 old_fw_img = fsec->fsec_entry[i].optype == 0xFFFF;
4805 if (img_optype == 0xFFFF)
4808 if (flash_offset_support)
4809 flash_optype = OPTYPE_OFFSET_SPECIFIED;
4811 flash_optype = img_optype;
4813 /* Don't bother verifying CRC if an old FW image is being
4819 status = be_check_flash_crc(adapter, fw->data, img_offset,
4820 img_size, filehdr_size +
4821 img_hdrs_size, flash_optype,
4823 if (base_status(status) == MCC_STATUS_ILLEGAL_REQUEST ||
4824 base_status(status) == MCC_STATUS_ILLEGAL_FIELD) {
4825 /* The current FW image on the card does not support
4826 * OFFSET based flashing. Retry using older mechanism
4827 * of OPTYPE based flashing
4829 if (flash_optype == OPTYPE_OFFSET_SPECIFIED) {
4830 flash_offset_support = false;
4834 /* The current FW image on the card does not recognize
4835 * the new FLASH op_type. The FW download is partially
4836 * complete. Reboot the server now to enable FW image
4837 * to recognize the new FLASH op_type. To complete the
4838 * remaining process, download the same FW again after
4841 dev_err(dev, "Flash incomplete. Reset the server\n");
4842 dev_err(dev, "Download FW image again after reset\n");
4844 } else if (status) {
4845 dev_err(dev, "Could not get CRC for 0x%x region\n",
4854 p = fw->data + filehdr_size + img_offset + img_hdrs_size;
4855 if (p + img_size > fw->data + fw->size)
4858 status = be_flash(adapter, p, flash_cmd, flash_optype, img_size,
4861 /* The current FW image on the card does not support OFFSET
4862 * based flashing. Retry using older mechanism of OPTYPE based
4865 if (base_status(status) == MCC_STATUS_ILLEGAL_FIELD &&
4866 flash_optype == OPTYPE_OFFSET_SPECIFIED) {
4867 flash_offset_support = false;
4871 /* For old FW images ignore ILLEGAL_FIELD error or errors on
4875 (base_status(status) == MCC_STATUS_ILLEGAL_FIELD ||
4876 (img_optype == OPTYPE_UFI_DIR &&
4877 base_status(status) == MCC_STATUS_FAILED))) {
4879 } else if (status) {
4880 dev_err(dev, "Flashing section type 0x%x failed\n",
4888 static int lancer_fw_download(struct be_adapter *adapter,
4889 const struct firmware *fw)
4891 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
4892 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
4893 struct device *dev = &adapter->pdev->dev;
4894 struct be_dma_mem flash_cmd;
4895 const u8 *data_ptr = NULL;
4896 u8 *dest_image_ptr = NULL;
4897 size_t image_size = 0;
4899 u32 data_written = 0;
4905 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
4906 dev_err(dev, "FW image size should be multiple of 4\n");
4910 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
4911 + LANCER_FW_DOWNLOAD_CHUNK;
4912 flash_cmd.va = dma_zalloc_coherent(dev, flash_cmd.size,
4913 &flash_cmd.dma, GFP_KERNEL);
4917 dest_image_ptr = flash_cmd.va +
4918 sizeof(struct lancer_cmd_req_write_object);
4919 image_size = fw->size;
4920 data_ptr = fw->data;
4922 while (image_size) {
4923 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
4925 /* Copy the image chunk content. */
4926 memcpy(dest_image_ptr, data_ptr, chunk_size);
4928 status = lancer_cmd_write_object(adapter, &flash_cmd,
4930 LANCER_FW_DOWNLOAD_LOCATION,
4931 &data_written, &change_status,
4936 offset += data_written;
4937 data_ptr += data_written;
4938 image_size -= data_written;
4942 /* Commit the FW written */
4943 status = lancer_cmd_write_object(adapter, &flash_cmd,
4945 LANCER_FW_DOWNLOAD_LOCATION,
4946 &data_written, &change_status,
4950 dma_free_coherent(dev, flash_cmd.size, flash_cmd.va, flash_cmd.dma);
4952 dev_err(dev, "Firmware load error\n");
4953 return be_cmd_status(status);
4956 dev_info(dev, "Firmware flashed successfully\n");
4958 if (change_status == LANCER_FW_RESET_NEEDED) {
4959 dev_info(dev, "Resetting adapter to activate new FW\n");
4960 status = lancer_physdev_ctrl(adapter,
4961 PHYSDEV_CONTROL_FW_RESET_MASK);
4963 dev_err(dev, "Adapter busy, could not reset FW\n");
4964 dev_err(dev, "Reboot server to activate new FW\n");
4966 } else if (change_status != LANCER_NO_RESET_NEEDED) {
4967 dev_info(dev, "Reboot server to activate new FW\n");
4973 /* Check if the flash image file is compatible with the adapter that
4976 static bool be_check_ufi_compatibility(struct be_adapter *adapter,
4977 struct flash_file_hdr_g3 *fhdr)
4980 dev_err(&adapter->pdev->dev, "Invalid FW UFI file");
4984 /* First letter of the build version is used to identify
4985 * which chip this image file is meant for.
4987 switch (fhdr->build[0]) {
4988 case BLD_STR_UFI_TYPE_SH:
4989 if (!skyhawk_chip(adapter))
4992 case BLD_STR_UFI_TYPE_BE3:
4993 if (!BE3_chip(adapter))
4996 case BLD_STR_UFI_TYPE_BE2:
4997 if (!BE2_chip(adapter))
5004 /* In BE3 FW images the "asic_type_rev" field doesn't track the
5005 * asic_rev of the chips it is compatible with.
5006 * When asic_type_rev is 0 the image is compatible only with
5007 * pre-BE3-R chips (asic_rev < 0x10)
5009 if (BEx_chip(adapter) && fhdr->asic_type_rev == 0)
5010 return adapter->asic_rev < 0x10;
5012 return (fhdr->asic_type_rev >= adapter->asic_rev);
5015 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
5017 struct device *dev = &adapter->pdev->dev;
5018 struct flash_file_hdr_g3 *fhdr3;
5019 struct image_hdr *img_hdr_ptr;
5020 int status = 0, i, num_imgs;
5021 struct be_dma_mem flash_cmd;
5023 fhdr3 = (struct flash_file_hdr_g3 *)fw->data;
5024 if (!be_check_ufi_compatibility(adapter, fhdr3)) {
5025 dev_err(dev, "Flash image is not compatible with adapter\n");
5029 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
5030 flash_cmd.va = dma_zalloc_coherent(dev, flash_cmd.size, &flash_cmd.dma,
5035 num_imgs = le32_to_cpu(fhdr3->num_imgs);
5036 for (i = 0; i < num_imgs; i++) {
5037 img_hdr_ptr = (struct image_hdr *)(fw->data +
5038 (sizeof(struct flash_file_hdr_g3) +
5039 i * sizeof(struct image_hdr)));
5040 if (!BE2_chip(adapter) &&
5041 le32_to_cpu(img_hdr_ptr->imageid) != 1)
5044 if (skyhawk_chip(adapter))
5045 status = be_flash_skyhawk(adapter, fw, &flash_cmd,
5048 status = be_flash_BEx(adapter, fw, &flash_cmd,
5052 dma_free_coherent(dev, flash_cmd.size, flash_cmd.va, flash_cmd.dma);
5054 dev_info(dev, "Firmware flashed successfully\n");
5059 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
5061 const struct firmware *fw;
5064 if (!netif_running(adapter->netdev)) {
5065 dev_err(&adapter->pdev->dev,
5066 "Firmware load not allowed (interface is down)\n");
5070 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
5074 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
5076 if (lancer_chip(adapter))
5077 status = lancer_fw_download(adapter, fw);
5079 status = be_fw_download(adapter, fw);
5082 be_cmd_get_fw_ver(adapter);
5085 release_firmware(fw);
5089 static int be_ndo_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
5092 struct be_adapter *adapter = netdev_priv(dev);
5093 struct nlattr *attr, *br_spec;
5098 if (!sriov_enabled(adapter))
5101 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
5105 nla_for_each_nested(attr, br_spec, rem) {
5106 if (nla_type(attr) != IFLA_BRIDGE_MODE)
5109 if (nla_len(attr) < sizeof(mode))
5112 mode = nla_get_u16(attr);
5113 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
5116 status = be_cmd_set_hsw_config(adapter, 0, 0,
5118 mode == BRIDGE_MODE_VEPA ?
5119 PORT_FWD_TYPE_VEPA :
5120 PORT_FWD_TYPE_VEB, 0);
5124 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
5125 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
5130 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
5131 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
5136 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
5137 struct net_device *dev, u32 filter_mask,
5140 struct be_adapter *adapter = netdev_priv(dev);
5144 /* BE and Lancer chips support VEB mode only */
5145 if (BEx_chip(adapter) || lancer_chip(adapter)) {
5146 hsw_mode = PORT_FWD_TYPE_VEB;
5148 status = be_cmd_get_hsw_config(adapter, NULL, 0,
5149 adapter->if_handle, &hsw_mode,
5154 if (hsw_mode == PORT_FWD_TYPE_PASSTHRU)
5158 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
5159 hsw_mode == PORT_FWD_TYPE_VEPA ?
5160 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB,
5161 0, 0, nlflags, filter_mask, NULL);
5164 #ifdef CONFIG_BE2NET_VXLAN
5165 /* VxLAN offload Notes:
5167 * The stack defines tunnel offload flags (hw_enc_features) for IP and doesn't
5168 * distinguish various types of transports (VxLAN, GRE, NVGRE ..). So, offload
5169 * is expected to work across all types of IP tunnels once exported. Skyhawk
5170 * supports offloads for either VxLAN or NVGRE, exclusively. So we export VxLAN
5171 * offloads in hw_enc_features only when a VxLAN port is added. If other (non
5172 * VxLAN) tunnels are configured while VxLAN offloads are enabled, offloads for
5173 * those other tunnels are unexported on the fly through ndo_features_check().
5175 * Skyhawk supports VxLAN offloads only for one UDP dport. So, if the stack
5176 * adds more than one port, disable offloads and don't re-enable them again
5177 * until after all the tunnels are removed.
5179 static void be_add_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
5182 struct be_adapter *adapter = netdev_priv(netdev);
5183 struct device *dev = &adapter->pdev->dev;
5186 if (lancer_chip(adapter) || BEx_chip(adapter) || be_is_mc(adapter))
5189 if (adapter->vxlan_port == port && adapter->vxlan_port_count) {
5190 adapter->vxlan_port_aliases++;
5194 if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) {
5196 "Only one UDP port supported for VxLAN offloads\n");
5197 dev_info(dev, "Disabling VxLAN offloads\n");
5198 adapter->vxlan_port_count++;
5202 if (adapter->vxlan_port_count++ >= 1)
5205 status = be_cmd_manage_iface(adapter, adapter->if_handle,
5206 OP_CONVERT_NORMAL_TO_TUNNEL);
5208 dev_warn(dev, "Failed to convert normal interface to tunnel\n");
5212 status = be_cmd_set_vxlan_port(adapter, port);
5214 dev_warn(dev, "Failed to add VxLAN port\n");
5217 adapter->flags |= BE_FLAGS_VXLAN_OFFLOADS;
5218 adapter->vxlan_port = port;
5220 netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
5221 NETIF_F_TSO | NETIF_F_TSO6 |
5222 NETIF_F_GSO_UDP_TUNNEL;
5223 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
5224 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
5226 dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n",
5230 be_disable_vxlan_offloads(adapter);
5233 static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
5236 struct be_adapter *adapter = netdev_priv(netdev);
5238 if (lancer_chip(adapter) || BEx_chip(adapter) || be_is_mc(adapter))
5241 if (adapter->vxlan_port != port)
5244 if (adapter->vxlan_port_aliases) {
5245 adapter->vxlan_port_aliases--;
5249 be_disable_vxlan_offloads(adapter);
5251 dev_info(&adapter->pdev->dev,
5252 "Disabled VxLAN offloads for UDP port %d\n",
5255 adapter->vxlan_port_count--;
5258 static netdev_features_t be_features_check(struct sk_buff *skb,
5259 struct net_device *dev,
5260 netdev_features_t features)
5262 struct be_adapter *adapter = netdev_priv(dev);
5265 /* The code below restricts offload features for some tunneled packets.
5266 * Offload features for normal (non tunnel) packets are unchanged.
5268 if (!skb->encapsulation ||
5269 !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS))
5272 /* It's an encapsulated packet and VxLAN offloads are enabled. We
5273 * should disable tunnel offload features if it's not a VxLAN packet,
5274 * as tunnel offloads have been enabled only for VxLAN. This is done to
5275 * allow other tunneled traffic like GRE work fine while VxLAN
5276 * offloads are configured in Skyhawk-R.
5278 switch (vlan_get_protocol(skb)) {
5279 case htons(ETH_P_IP):
5280 l4_hdr = ip_hdr(skb)->protocol;
5282 case htons(ETH_P_IPV6):
5283 l4_hdr = ipv6_hdr(skb)->nexthdr;
5289 if (l4_hdr != IPPROTO_UDP ||
5290 skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
5291 skb->inner_protocol != htons(ETH_P_TEB) ||
5292 skb_inner_mac_header(skb) - skb_transport_header(skb) !=
5293 sizeof(struct udphdr) + sizeof(struct vxlanhdr))
5294 return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
5300 static int be_get_phys_port_id(struct net_device *dev,
5301 struct netdev_phys_item_id *ppid)
5303 int i, id_len = CNTL_SERIAL_NUM_WORDS * CNTL_SERIAL_NUM_WORD_SZ + 1;
5304 struct be_adapter *adapter = netdev_priv(dev);
5307 if (MAX_PHYS_ITEM_ID_LEN < id_len)
5310 ppid->id[0] = adapter->hba_port_num + 1;
5312 for (i = CNTL_SERIAL_NUM_WORDS - 1; i >= 0;
5313 i--, id += CNTL_SERIAL_NUM_WORD_SZ)
5314 memcpy(id, &adapter->serial_num[i], CNTL_SERIAL_NUM_WORD_SZ);
5316 ppid->id_len = id_len;
5321 static const struct net_device_ops be_netdev_ops = {
5322 .ndo_open = be_open,
5323 .ndo_stop = be_close,
5324 .ndo_start_xmit = be_xmit,
5325 .ndo_set_rx_mode = be_set_rx_mode,
5326 .ndo_set_mac_address = be_mac_addr_set,
5327 .ndo_change_mtu = be_change_mtu,
5328 .ndo_get_stats64 = be_get_stats64,
5329 .ndo_validate_addr = eth_validate_addr,
5330 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
5331 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
5332 .ndo_set_vf_mac = be_set_vf_mac,
5333 .ndo_set_vf_vlan = be_set_vf_vlan,
5334 .ndo_set_vf_rate = be_set_vf_tx_rate,
5335 .ndo_get_vf_config = be_get_vf_config,
5336 .ndo_set_vf_link_state = be_set_vf_link_state,
5337 .ndo_set_vf_spoofchk = be_set_vf_spoofchk,
5338 #ifdef CONFIG_NET_POLL_CONTROLLER
5339 .ndo_poll_controller = be_netpoll,
5341 .ndo_bridge_setlink = be_ndo_bridge_setlink,
5342 .ndo_bridge_getlink = be_ndo_bridge_getlink,
5343 #ifdef CONFIG_NET_RX_BUSY_POLL
5344 .ndo_busy_poll = be_busy_poll,
5346 #ifdef CONFIG_BE2NET_VXLAN
5347 .ndo_add_vxlan_port = be_add_vxlan_port,
5348 .ndo_del_vxlan_port = be_del_vxlan_port,
5349 .ndo_features_check = be_features_check,
5351 .ndo_get_phys_port_id = be_get_phys_port_id,
5354 static void be_netdev_init(struct net_device *netdev)
5356 struct be_adapter *adapter = netdev_priv(netdev);
5358 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
5359 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
5360 NETIF_F_HW_VLAN_CTAG_TX;
5361 if (be_multi_rxq(adapter))
5362 netdev->hw_features |= NETIF_F_RXHASH;
5364 netdev->features |= netdev->hw_features |
5365 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
5367 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
5368 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
5370 netdev->priv_flags |= IFF_UNICAST_FLT;
5372 netdev->flags |= IFF_MULTICAST;
5374 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
5376 netdev->netdev_ops = &be_netdev_ops;
5378 netdev->ethtool_ops = &be_ethtool_ops;
5381 static void be_cleanup(struct be_adapter *adapter)
5383 struct net_device *netdev = adapter->netdev;
5386 netif_device_detach(netdev);
5387 if (netif_running(netdev))
5394 static int be_resume(struct be_adapter *adapter)
5396 struct net_device *netdev = adapter->netdev;
5399 status = be_setup(adapter);
5403 if (netif_running(netdev)) {
5404 status = be_open(netdev);
5409 netif_device_attach(netdev);
5414 static int be_err_recover(struct be_adapter *adapter)
5416 struct device *dev = &adapter->pdev->dev;
5419 status = be_resume(adapter);
5423 dev_info(dev, "Adapter recovery successful\n");
5426 if (be_physfn(adapter))
5427 dev_err(dev, "Adapter recovery failed\n");
5429 dev_err(dev, "Re-trying adapter recovery\n");
5434 static void be_err_detection_task(struct work_struct *work)
5436 struct be_adapter *adapter =
5437 container_of(work, struct be_adapter,
5438 be_err_detection_work.work);
5441 be_detect_error(adapter);
5443 if (be_check_error(adapter, BE_ERROR_HW)) {
5444 be_cleanup(adapter);
5446 /* As of now error recovery support is in Lancer only */
5447 if (lancer_chip(adapter))
5448 status = be_err_recover(adapter);
5451 /* Always attempt recovery on VFs */
5452 if (!status || be_virtfn(adapter))
5453 be_schedule_err_detection(adapter);
5456 static void be_log_sfp_info(struct be_adapter *adapter)
5460 status = be_cmd_query_sfp_info(adapter);
5462 dev_err(&adapter->pdev->dev,
5463 "Unqualified SFP+ detected on %c from %s part no: %s",
5464 adapter->port_name, adapter->phy.vendor_name,
5465 adapter->phy.vendor_pn);
5467 adapter->flags &= ~BE_FLAGS_EVT_INCOMPATIBLE_SFP;
5470 static void be_worker(struct work_struct *work)
5472 struct be_adapter *adapter =
5473 container_of(work, struct be_adapter, work.work);
5474 struct be_rx_obj *rxo;
5477 /* when interrupts are not yet enabled, just reap any pending
5480 if (!netif_running(adapter->netdev)) {
5482 be_process_mcc(adapter);
5487 if (!adapter->stats_cmd_sent) {
5488 if (lancer_chip(adapter))
5489 lancer_cmd_get_pport_stats(adapter,
5490 &adapter->stats_cmd);
5492 be_cmd_get_stats(adapter, &adapter->stats_cmd);
5495 if (be_physfn(adapter) &&
5496 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
5497 be_cmd_get_die_temperature(adapter);
5499 for_all_rx_queues(adapter, rxo, i) {
5500 /* Replenish RX-queues starved due to memory
5501 * allocation failures.
5503 if (rxo->rx_post_starved)
5504 be_post_rx_frags(rxo, GFP_KERNEL, MAX_RX_POST);
5507 /* EQ-delay update for Skyhawk is done while notifying EQ */
5508 if (!skyhawk_chip(adapter))
5509 be_eqd_update(adapter, false);
5511 if (adapter->flags & BE_FLAGS_EVT_INCOMPATIBLE_SFP)
5512 be_log_sfp_info(adapter);
5515 adapter->work_counter++;
5516 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
5519 static void be_unmap_pci_bars(struct be_adapter *adapter)
5522 pci_iounmap(adapter->pdev, adapter->csr);
5524 pci_iounmap(adapter->pdev, adapter->db);
5527 static int db_bar(struct be_adapter *adapter)
5529 if (lancer_chip(adapter) || be_virtfn(adapter))
5535 static int be_roce_map_pci_bars(struct be_adapter *adapter)
5537 if (skyhawk_chip(adapter)) {
5538 adapter->roce_db.size = 4096;
5539 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
5541 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
5547 static int be_map_pci_bars(struct be_adapter *adapter)
5549 struct pci_dev *pdev = adapter->pdev;
5553 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
5554 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
5555 SLI_INTF_FAMILY_SHIFT;
5556 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
5558 if (BEx_chip(adapter) && be_physfn(adapter)) {
5559 adapter->csr = pci_iomap(pdev, 2, 0);
5564 addr = pci_iomap(pdev, db_bar(adapter), 0);
5569 if (skyhawk_chip(adapter) || BEx_chip(adapter)) {
5570 if (be_physfn(adapter)) {
5571 /* PCICFG is the 2nd BAR in BE2 */
5572 addr = pci_iomap(pdev, BE2_chip(adapter) ? 1 : 0, 0);
5575 adapter->pcicfg = addr;
5577 adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
5581 be_roce_map_pci_bars(adapter);
5585 dev_err(&pdev->dev, "Error in mapping PCI BARs\n");
5586 be_unmap_pci_bars(adapter);
5590 static void be_drv_cleanup(struct be_adapter *adapter)
5592 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
5593 struct device *dev = &adapter->pdev->dev;
5596 dma_free_coherent(dev, mem->size, mem->va, mem->dma);
5598 mem = &adapter->rx_filter;
5600 dma_free_coherent(dev, mem->size, mem->va, mem->dma);
5602 mem = &adapter->stats_cmd;
5604 dma_free_coherent(dev, mem->size, mem->va, mem->dma);
5607 /* Allocate and initialize various fields in be_adapter struct */
5608 static int be_drv_init(struct be_adapter *adapter)
5610 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
5611 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
5612 struct be_dma_mem *rx_filter = &adapter->rx_filter;
5613 struct be_dma_mem *stats_cmd = &adapter->stats_cmd;
5614 struct device *dev = &adapter->pdev->dev;
5617 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
5618 mbox_mem_alloc->va = dma_zalloc_coherent(dev, mbox_mem_alloc->size,
5619 &mbox_mem_alloc->dma,
5621 if (!mbox_mem_alloc->va)
5624 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
5625 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
5626 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
5628 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
5629 rx_filter->va = dma_zalloc_coherent(dev, rx_filter->size,
5630 &rx_filter->dma, GFP_KERNEL);
5631 if (!rx_filter->va) {
5636 if (lancer_chip(adapter))
5637 stats_cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
5638 else if (BE2_chip(adapter))
5639 stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
5640 else if (BE3_chip(adapter))
5641 stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
5643 stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
5644 stats_cmd->va = dma_zalloc_coherent(dev, stats_cmd->size,
5645 &stats_cmd->dma, GFP_KERNEL);
5646 if (!stats_cmd->va) {
5648 goto free_rx_filter;
5651 mutex_init(&adapter->mbox_lock);
5652 spin_lock_init(&adapter->mcc_lock);
5653 spin_lock_init(&adapter->mcc_cq_lock);
5654 init_completion(&adapter->et_cmd_compl);
5656 pci_save_state(adapter->pdev);
5658 INIT_DELAYED_WORK(&adapter->work, be_worker);
5659 INIT_DELAYED_WORK(&adapter->be_err_detection_work,
5660 be_err_detection_task);
5662 adapter->rx_fc = true;
5663 adapter->tx_fc = true;
5665 /* Must be a power of 2 or else MODULO will BUG_ON */
5666 adapter->be_get_temp_freq = 64;
5671 dma_free_coherent(dev, rx_filter->size, rx_filter->va, rx_filter->dma);
5673 dma_free_coherent(dev, mbox_mem_alloc->size, mbox_mem_alloc->va,
5674 mbox_mem_alloc->dma);
5678 static void be_remove(struct pci_dev *pdev)
5680 struct be_adapter *adapter = pci_get_drvdata(pdev);
5685 be_roce_dev_remove(adapter);
5686 be_intr_set(adapter, false);
5688 be_cancel_err_detection(adapter);
5690 unregister_netdev(adapter->netdev);
5694 /* tell fw we're done with firing cmds */
5695 be_cmd_fw_clean(adapter);
5697 be_unmap_pci_bars(adapter);
5698 be_drv_cleanup(adapter);
5700 pci_disable_pcie_error_reporting(pdev);
5702 pci_release_regions(pdev);
5703 pci_disable_device(pdev);
5705 free_netdev(adapter->netdev);
5708 static ssize_t be_hwmon_show_temp(struct device *dev,
5709 struct device_attribute *dev_attr,
5712 struct be_adapter *adapter = dev_get_drvdata(dev);
5714 /* Unit: millidegree Celsius */
5715 if (adapter->hwmon_info.be_on_die_temp == BE_INVALID_DIE_TEMP)
5718 return sprintf(buf, "%u\n",
5719 adapter->hwmon_info.be_on_die_temp * 1000);
5722 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
5723 be_hwmon_show_temp, NULL, 1);
5725 static struct attribute *be_hwmon_attrs[] = {
5726 &sensor_dev_attr_temp1_input.dev_attr.attr,
5730 ATTRIBUTE_GROUPS(be_hwmon);
5732 static char *mc_name(struct be_adapter *adapter)
5734 char *str = ""; /* default */
5736 switch (adapter->mc_type) {
5762 static inline char *func_name(struct be_adapter *adapter)
5764 return be_physfn(adapter) ? "PF" : "VF";
5767 static inline char *nic_name(struct pci_dev *pdev)
5769 switch (pdev->device) {
5776 return OC_NAME_LANCER;
5787 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
5789 struct be_adapter *adapter;
5790 struct net_device *netdev;
5793 dev_info(&pdev->dev, "%s version is %s\n", DRV_NAME, DRV_VER);
5795 status = pci_enable_device(pdev);
5799 status = pci_request_regions(pdev, DRV_NAME);
5802 pci_set_master(pdev);
5804 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
5809 adapter = netdev_priv(netdev);
5810 adapter->pdev = pdev;
5811 pci_set_drvdata(pdev, adapter);
5812 adapter->netdev = netdev;
5813 SET_NETDEV_DEV(netdev, &pdev->dev);
5815 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
5817 netdev->features |= NETIF_F_HIGHDMA;
5819 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
5821 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
5826 status = pci_enable_pcie_error_reporting(pdev);
5828 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
5830 status = be_map_pci_bars(adapter);
5834 status = be_drv_init(adapter);
5838 status = be_setup(adapter);
5842 be_netdev_init(netdev);
5843 status = register_netdev(netdev);
5847 be_roce_dev_add(adapter);
5849 be_schedule_err_detection(adapter);
5851 /* On Die temperature not supported for VF. */
5852 if (be_physfn(adapter) && IS_ENABLED(CONFIG_BE2NET_HWMON)) {
5853 adapter->hwmon_info.hwmon_dev =
5854 devm_hwmon_device_register_with_groups(&pdev->dev,
5858 adapter->hwmon_info.be_on_die_temp = BE_INVALID_DIE_TEMP;
5861 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
5862 func_name(adapter), mc_name(adapter), adapter->port_name);
5869 be_drv_cleanup(adapter);
5871 be_unmap_pci_bars(adapter);
5873 free_netdev(netdev);
5875 pci_release_regions(pdev);
5877 pci_disable_device(pdev);
5879 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
5883 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
5885 struct be_adapter *adapter = pci_get_drvdata(pdev);
5887 if (adapter->wol_en)
5888 be_setup_wol(adapter, true);
5890 be_intr_set(adapter, false);
5891 be_cancel_err_detection(adapter);
5893 be_cleanup(adapter);
5895 pci_save_state(pdev);
5896 pci_disable_device(pdev);
5897 pci_set_power_state(pdev, pci_choose_state(pdev, state));
5901 static int be_pci_resume(struct pci_dev *pdev)
5903 struct be_adapter *adapter = pci_get_drvdata(pdev);
5906 status = pci_enable_device(pdev);
5910 pci_restore_state(pdev);
5912 status = be_resume(adapter);
5916 be_schedule_err_detection(adapter);
5918 if (adapter->wol_en)
5919 be_setup_wol(adapter, false);
5925 * An FLR will stop BE from DMAing any data.
5927 static void be_shutdown(struct pci_dev *pdev)
5929 struct be_adapter *adapter = pci_get_drvdata(pdev);
5934 be_roce_dev_shutdown(adapter);
5935 cancel_delayed_work_sync(&adapter->work);
5936 be_cancel_err_detection(adapter);
5938 netif_device_detach(adapter->netdev);
5940 be_cmd_reset_function(adapter);
5942 pci_disable_device(pdev);
5945 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
5946 pci_channel_state_t state)
5948 struct be_adapter *adapter = pci_get_drvdata(pdev);
5950 dev_err(&adapter->pdev->dev, "EEH error detected\n");
5952 if (!be_check_error(adapter, BE_ERROR_EEH)) {
5953 be_set_error(adapter, BE_ERROR_EEH);
5955 be_cancel_err_detection(adapter);
5957 be_cleanup(adapter);
5960 if (state == pci_channel_io_perm_failure)
5961 return PCI_ERS_RESULT_DISCONNECT;
5963 pci_disable_device(pdev);
5965 /* The error could cause the FW to trigger a flash debug dump.
5966 * Resetting the card while flash dump is in progress
5967 * can cause it not to recover; wait for it to finish.
5968 * Wait only for first function as it is needed only once per
5971 if (pdev->devfn == 0)
5974 return PCI_ERS_RESULT_NEED_RESET;
5977 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
5979 struct be_adapter *adapter = pci_get_drvdata(pdev);
5982 dev_info(&adapter->pdev->dev, "EEH reset\n");
5984 status = pci_enable_device(pdev);
5986 return PCI_ERS_RESULT_DISCONNECT;
5988 pci_set_master(pdev);
5989 pci_restore_state(pdev);
5991 /* Check if card is ok and fw is ready */
5992 dev_info(&adapter->pdev->dev,
5993 "Waiting for FW to be ready after EEH reset\n");
5994 status = be_fw_wait_ready(adapter);
5996 return PCI_ERS_RESULT_DISCONNECT;
5998 pci_cleanup_aer_uncorrect_error_status(pdev);
5999 be_clear_error(adapter, BE_CLEAR_ALL);
6000 return PCI_ERS_RESULT_RECOVERED;
6003 static void be_eeh_resume(struct pci_dev *pdev)
6006 struct be_adapter *adapter = pci_get_drvdata(pdev);
6008 dev_info(&adapter->pdev->dev, "EEH resume\n");
6010 pci_save_state(pdev);
6012 status = be_resume(adapter);
6016 be_schedule_err_detection(adapter);
6019 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
6022 static int be_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
6024 struct be_adapter *adapter = pci_get_drvdata(pdev);
6029 be_vf_clear(adapter);
6031 adapter->num_vfs = num_vfs;
6033 if (adapter->num_vfs == 0 && pci_vfs_assigned(pdev)) {
6034 dev_warn(&pdev->dev,
6035 "Cannot disable VFs while they are assigned\n");
6039 /* When the HW is in SRIOV capable configuration, the PF-pool resources
6040 * are equally distributed across the max-number of VFs. The user may
6041 * request only a subset of the max-vfs to be enabled.
6042 * Based on num_vfs, redistribute the resources across num_vfs so that
6043 * each VF will have access to more number of resources.
6044 * This facility is not available in BE3 FW.
6045 * Also, this is done by FW in Lancer chip.
6047 if (skyhawk_chip(adapter) && !pci_num_vf(pdev)) {
6048 num_vf_qs = be_calculate_vf_qs(adapter, adapter->num_vfs);
6049 status = be_cmd_set_sriov_config(adapter, adapter->pool_res,
6050 adapter->num_vfs, num_vf_qs);
6053 "Failed to optimize SR-IOV resources\n");
6056 status = be_get_resources(adapter);
6058 return be_cmd_status(status);
6060 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
6062 status = be_update_queues(adapter);
6065 return be_cmd_status(status);
6067 if (adapter->num_vfs)
6068 status = be_vf_setup(adapter);
6071 return adapter->num_vfs;
6076 static const struct pci_error_handlers be_eeh_handlers = {
6077 .error_detected = be_eeh_err_detected,
6078 .slot_reset = be_eeh_reset,
6079 .resume = be_eeh_resume,
6082 static struct pci_driver be_driver = {
6084 .id_table = be_dev_ids,
6086 .remove = be_remove,
6087 .suspend = be_suspend,
6088 .resume = be_pci_resume,
6089 .shutdown = be_shutdown,
6090 .sriov_configure = be_pci_sriov_configure,
6091 .err_handler = &be_eeh_handlers
6094 static int __init be_init_module(void)
6096 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
6097 rx_frag_size != 2048) {
6098 printk(KERN_WARNING DRV_NAME
6099 " : Module param rx_frag_size must be 2048/4096/8192."
6101 rx_frag_size = 2048;
6105 pr_info(DRV_NAME " : Module param num_vfs is obsolete.");
6106 pr_info(DRV_NAME " : Use sysfs method to enable VFs\n");
6109 return pci_register_driver(&be_driver);
6111 module_init(be_init_module);
6113 static void __exit be_exit_module(void)
6115 pci_unregister_driver(&be_driver);
6117 module_exit(be_exit_module);