2 * Copyright (C) 2005 - 2014 Emulex
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Contact Information:
11 * linux-drivers@emulex.com
15 * Costa Mesa, CA 92626
18 #include <linux/prefetch.h>
19 #include <linux/module.h>
22 #include <asm/div64.h>
23 #include <linux/aer.h>
24 #include <linux/if_bridge.h>
25 #include <net/busy_poll.h>
26 #include <net/vxlan.h>
28 MODULE_VERSION(DRV_VER);
29 MODULE_DEVICE_TABLE(pci, be_dev_ids);
30 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
31 MODULE_AUTHOR("Emulex Corporation");
32 MODULE_LICENSE("GPL");
34 static unsigned int num_vfs;
35 module_param(num_vfs, uint, S_IRUGO);
36 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
38 static ushort rx_frag_size = 2048;
39 module_param(rx_frag_size, ushort, S_IRUGO);
40 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
42 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
43 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
44 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
45 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
46 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
48 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
49 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
50 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
53 MODULE_DEVICE_TABLE(pci, be_dev_ids);
54 /* UE Status Low CSR */
55 static const char * const ue_status_low_desc[] = {
89 /* UE Status High CSR */
90 static const char * const ue_status_hi_desc[] = {
126 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
128 struct be_dma_mem *mem = &q->dma_mem;
130 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
136 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
137 u16 len, u16 entry_size)
139 struct be_dma_mem *mem = &q->dma_mem;
141 memset(q, 0, sizeof(*q));
143 q->entry_size = entry_size;
144 mem->size = len * entry_size;
145 mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
152 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
156 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
158 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
160 if (!enabled && enable)
161 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
162 else if (enabled && !enable)
163 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
167 pci_write_config_dword(adapter->pdev,
168 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
171 static void be_intr_set(struct be_adapter *adapter, bool enable)
175 /* On lancer interrupts can't be controlled via this register */
176 if (lancer_chip(adapter))
179 if (adapter->eeh_error)
182 status = be_cmd_intr_set(adapter, enable);
184 be_reg_intr_set(adapter, enable);
187 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
190 val |= qid & DB_RQ_RING_ID_MASK;
191 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
194 iowrite32(val, adapter->db + DB_RQ_OFFSET);
197 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
201 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
202 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
205 iowrite32(val, adapter->db + txo->db_offset);
208 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
209 bool arm, bool clear_int, u16 num_popped)
212 val |= qid & DB_EQ_RING_ID_MASK;
213 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << DB_EQ_RING_ID_EXT_MASK_SHIFT);
215 if (adapter->eeh_error)
219 val |= 1 << DB_EQ_REARM_SHIFT;
221 val |= 1 << DB_EQ_CLR_SHIFT;
222 val |= 1 << DB_EQ_EVNT_SHIFT;
223 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
224 iowrite32(val, adapter->db + DB_EQ_OFFSET);
227 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
230 val |= qid & DB_CQ_RING_ID_MASK;
231 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
232 DB_CQ_RING_ID_EXT_MASK_SHIFT);
234 if (adapter->eeh_error)
238 val |= 1 << DB_CQ_REARM_SHIFT;
239 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
240 iowrite32(val, adapter->db + DB_CQ_OFFSET);
243 static int be_mac_addr_set(struct net_device *netdev, void *p)
245 struct be_adapter *adapter = netdev_priv(netdev);
246 struct device *dev = &adapter->pdev->dev;
247 struct sockaddr *addr = p;
250 u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0;
252 if (!is_valid_ether_addr(addr->sa_data))
253 return -EADDRNOTAVAIL;
255 /* Proceed further only if, User provided MAC is different
258 if (ether_addr_equal(addr->sa_data, netdev->dev_addr))
261 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
262 * privilege or if PF did not provision the new MAC address.
263 * On BE3, this cmd will always fail if the VF doesn't have the
264 * FILTMGMT privilege. This failure is OK, only if the PF programmed
265 * the MAC for the VF.
267 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
268 adapter->if_handle, &adapter->pmac_id[0], 0);
270 curr_pmac_id = adapter->pmac_id[0];
272 /* Delete the old programmed MAC. This call may fail if the
273 * old MAC was already deleted by the PF driver.
275 if (adapter->pmac_id[0] != old_pmac_id)
276 be_cmd_pmac_del(adapter, adapter->if_handle,
280 /* Decide if the new MAC is successfully activated only after
283 status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac,
284 adapter->if_handle, true, 0);
288 /* The MAC change did not happen, either due to lack of privilege
289 * or PF didn't pre-provision.
291 if (!ether_addr_equal(addr->sa_data, mac)) {
296 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
297 dev_info(dev, "MAC address changed to %pM\n", mac);
300 dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
304 /* BE2 supports only v0 cmd */
305 static void *hw_stats_from_cmd(struct be_adapter *adapter)
307 if (BE2_chip(adapter)) {
308 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
310 return &cmd->hw_stats;
311 } else if (BE3_chip(adapter)) {
312 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
314 return &cmd->hw_stats;
316 struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;
318 return &cmd->hw_stats;
322 /* BE2 supports only v0 cmd */
323 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
325 if (BE2_chip(adapter)) {
326 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
328 return &hw_stats->erx;
329 } else if (BE3_chip(adapter)) {
330 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
332 return &hw_stats->erx;
334 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
336 return &hw_stats->erx;
340 static void populate_be_v0_stats(struct be_adapter *adapter)
342 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
343 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
344 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
345 struct be_port_rxf_stats_v0 *port_stats =
346 &rxf_stats->port[adapter->port_num];
347 struct be_drv_stats *drvs = &adapter->drv_stats;
349 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
350 drvs->rx_pause_frames = port_stats->rx_pause_frames;
351 drvs->rx_crc_errors = port_stats->rx_crc_errors;
352 drvs->rx_control_frames = port_stats->rx_control_frames;
353 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
354 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
355 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
356 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
357 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
358 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
359 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
360 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
361 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
362 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
363 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
364 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
365 drvs->rx_dropped_header_too_small =
366 port_stats->rx_dropped_header_too_small;
367 drvs->rx_address_filtered =
368 port_stats->rx_address_filtered +
369 port_stats->rx_vlan_filtered;
370 drvs->rx_alignment_symbol_errors =
371 port_stats->rx_alignment_symbol_errors;
373 drvs->tx_pauseframes = port_stats->tx_pauseframes;
374 drvs->tx_controlframes = port_stats->tx_controlframes;
376 if (adapter->port_num)
377 drvs->jabber_events = rxf_stats->port1_jabber_events;
379 drvs->jabber_events = rxf_stats->port0_jabber_events;
380 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
381 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
382 drvs->forwarded_packets = rxf_stats->forwarded_packets;
383 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
384 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
385 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
386 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
389 static void populate_be_v1_stats(struct be_adapter *adapter)
391 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
392 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
393 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
394 struct be_port_rxf_stats_v1 *port_stats =
395 &rxf_stats->port[adapter->port_num];
396 struct be_drv_stats *drvs = &adapter->drv_stats;
398 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
399 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
400 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
401 drvs->rx_pause_frames = port_stats->rx_pause_frames;
402 drvs->rx_crc_errors = port_stats->rx_crc_errors;
403 drvs->rx_control_frames = port_stats->rx_control_frames;
404 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
405 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
406 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
407 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
408 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
409 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
410 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
411 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
412 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
413 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
414 drvs->rx_dropped_header_too_small =
415 port_stats->rx_dropped_header_too_small;
416 drvs->rx_input_fifo_overflow_drop =
417 port_stats->rx_input_fifo_overflow_drop;
418 drvs->rx_address_filtered = port_stats->rx_address_filtered;
419 drvs->rx_alignment_symbol_errors =
420 port_stats->rx_alignment_symbol_errors;
421 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
422 drvs->tx_pauseframes = port_stats->tx_pauseframes;
423 drvs->tx_controlframes = port_stats->tx_controlframes;
424 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
425 drvs->jabber_events = port_stats->jabber_events;
426 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
427 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
428 drvs->forwarded_packets = rxf_stats->forwarded_packets;
429 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
430 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
431 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
432 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
435 static void populate_be_v2_stats(struct be_adapter *adapter)
437 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
438 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
439 struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
440 struct be_port_rxf_stats_v2 *port_stats =
441 &rxf_stats->port[adapter->port_num];
442 struct be_drv_stats *drvs = &adapter->drv_stats;
444 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
445 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
446 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
447 drvs->rx_pause_frames = port_stats->rx_pause_frames;
448 drvs->rx_crc_errors = port_stats->rx_crc_errors;
449 drvs->rx_control_frames = port_stats->rx_control_frames;
450 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
451 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
452 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
453 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
454 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
455 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
456 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
457 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
458 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
459 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
460 drvs->rx_dropped_header_too_small =
461 port_stats->rx_dropped_header_too_small;
462 drvs->rx_input_fifo_overflow_drop =
463 port_stats->rx_input_fifo_overflow_drop;
464 drvs->rx_address_filtered = port_stats->rx_address_filtered;
465 drvs->rx_alignment_symbol_errors =
466 port_stats->rx_alignment_symbol_errors;
467 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
468 drvs->tx_pauseframes = port_stats->tx_pauseframes;
469 drvs->tx_controlframes = port_stats->tx_controlframes;
470 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
471 drvs->jabber_events = port_stats->jabber_events;
472 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
473 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
474 drvs->forwarded_packets = rxf_stats->forwarded_packets;
475 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
476 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
477 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
478 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
479 if (be_roce_supported(adapter)) {
480 drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
481 drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
482 drvs->rx_roce_frames = port_stats->roce_frames_received;
483 drvs->roce_drops_crc = port_stats->roce_drops_crc;
484 drvs->roce_drops_payload_len =
485 port_stats->roce_drops_payload_len;
489 static void populate_lancer_stats(struct be_adapter *adapter)
492 struct be_drv_stats *drvs = &adapter->drv_stats;
493 struct lancer_pport_stats *pport_stats = pport_stats_from_cmd(adapter);
495 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
496 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
497 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
498 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
499 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
500 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
501 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
502 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
503 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
504 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
505 drvs->rx_dropped_tcp_length =
506 pport_stats->rx_dropped_invalid_tcp_length;
507 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
508 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
509 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
510 drvs->rx_dropped_header_too_small =
511 pport_stats->rx_dropped_header_too_small;
512 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
513 drvs->rx_address_filtered =
514 pport_stats->rx_address_filtered +
515 pport_stats->rx_vlan_filtered;
516 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
517 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
518 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
519 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
520 drvs->jabber_events = pport_stats->rx_jabbers;
521 drvs->forwarded_packets = pport_stats->num_forwards_lo;
522 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
523 drvs->rx_drops_too_many_frags =
524 pport_stats->rx_drops_too_many_frags_lo;
527 static void accumulate_16bit_val(u32 *acc, u16 val)
529 #define lo(x) (x & 0xFFFF)
530 #define hi(x) (x & 0xFFFF0000)
531 bool wrapped = val < lo(*acc);
532 u32 newacc = hi(*acc) + val;
536 ACCESS_ONCE(*acc) = newacc;
539 static void populate_erx_stats(struct be_adapter *adapter,
540 struct be_rx_obj *rxo, u32 erx_stat)
542 if (!BEx_chip(adapter))
543 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
545 /* below erx HW counter can actually wrap around after
546 * 65535. Driver accumulates a 32-bit value
548 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
552 void be_parse_stats(struct be_adapter *adapter)
554 struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
555 struct be_rx_obj *rxo;
559 if (lancer_chip(adapter)) {
560 populate_lancer_stats(adapter);
562 if (BE2_chip(adapter))
563 populate_be_v0_stats(adapter);
564 else if (BE3_chip(adapter))
566 populate_be_v1_stats(adapter);
568 populate_be_v2_stats(adapter);
570 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
571 for_all_rx_queues(adapter, rxo, i) {
572 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
573 populate_erx_stats(adapter, rxo, erx_stat);
578 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
579 struct rtnl_link_stats64 *stats)
581 struct be_adapter *adapter = netdev_priv(netdev);
582 struct be_drv_stats *drvs = &adapter->drv_stats;
583 struct be_rx_obj *rxo;
584 struct be_tx_obj *txo;
589 for_all_rx_queues(adapter, rxo, i) {
590 const struct be_rx_stats *rx_stats = rx_stats(rxo);
592 start = u64_stats_fetch_begin_irq(&rx_stats->sync);
593 pkts = rx_stats(rxo)->rx_pkts;
594 bytes = rx_stats(rxo)->rx_bytes;
595 } while (u64_stats_fetch_retry_irq(&rx_stats->sync, start));
596 stats->rx_packets += pkts;
597 stats->rx_bytes += bytes;
598 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
599 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
600 rx_stats(rxo)->rx_drops_no_frags;
603 for_all_tx_queues(adapter, txo, i) {
604 const struct be_tx_stats *tx_stats = tx_stats(txo);
606 start = u64_stats_fetch_begin_irq(&tx_stats->sync);
607 pkts = tx_stats(txo)->tx_pkts;
608 bytes = tx_stats(txo)->tx_bytes;
609 } while (u64_stats_fetch_retry_irq(&tx_stats->sync, start));
610 stats->tx_packets += pkts;
611 stats->tx_bytes += bytes;
614 /* bad pkts received */
615 stats->rx_errors = drvs->rx_crc_errors +
616 drvs->rx_alignment_symbol_errors +
617 drvs->rx_in_range_errors +
618 drvs->rx_out_range_errors +
619 drvs->rx_frame_too_long +
620 drvs->rx_dropped_too_small +
621 drvs->rx_dropped_too_short +
622 drvs->rx_dropped_header_too_small +
623 drvs->rx_dropped_tcp_length +
624 drvs->rx_dropped_runt;
626 /* detailed rx errors */
627 stats->rx_length_errors = drvs->rx_in_range_errors +
628 drvs->rx_out_range_errors +
629 drvs->rx_frame_too_long;
631 stats->rx_crc_errors = drvs->rx_crc_errors;
633 /* frame alignment errors */
634 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
636 /* receiver fifo overrun */
637 /* drops_no_pbuf is no per i/f, it's per BE card */
638 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
639 drvs->rx_input_fifo_overflow_drop +
640 drvs->rx_drops_no_pbuf;
644 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
646 struct net_device *netdev = adapter->netdev;
648 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
649 netif_carrier_off(netdev);
650 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
654 netif_carrier_on(netdev);
656 netif_carrier_off(netdev);
659 static void be_tx_stats_update(struct be_tx_obj *txo,
660 u32 wrb_cnt, u32 copied, u32 gso_segs,
663 struct be_tx_stats *stats = tx_stats(txo);
665 u64_stats_update_begin(&stats->sync);
667 stats->tx_wrbs += wrb_cnt;
668 stats->tx_bytes += copied;
669 stats->tx_pkts += (gso_segs ? gso_segs : 1);
672 u64_stats_update_end(&stats->sync);
675 /* Determine number of WRB entries needed to xmit data in an skb */
676 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
679 int cnt = (skb->len > skb->data_len);
681 cnt += skb_shinfo(skb)->nr_frags;
683 /* to account for hdr wrb */
685 if (lancer_chip(adapter) || !(cnt & 1)) {
688 /* add a dummy to make it an even num */
692 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
696 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
698 wrb->frag_pa_hi = upper_32_bits(addr);
699 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
700 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
704 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
710 vlan_tag = vlan_tx_tag_get(skb);
711 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
712 /* If vlan priority provided by OS is NOT in available bmap */
713 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
714 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
715 adapter->recommended_prio;
720 /* Used only for IP tunnel packets */
721 static u16 skb_inner_ip_proto(struct sk_buff *skb)
723 return (inner_ip_hdr(skb)->version == 4) ?
724 inner_ip_hdr(skb)->protocol : inner_ipv6_hdr(skb)->nexthdr;
727 static u16 skb_ip_proto(struct sk_buff *skb)
729 return (ip_hdr(skb)->version == 4) ?
730 ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
733 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
734 struct sk_buff *skb, u32 wrb_cnt, u32 len,
739 memset(hdr, 0, sizeof(*hdr));
741 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
743 if (skb_is_gso(skb)) {
744 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
745 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
746 hdr, skb_shinfo(skb)->gso_size);
747 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
748 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
749 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
750 if (skb->encapsulation) {
751 AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
752 proto = skb_inner_ip_proto(skb);
754 proto = skb_ip_proto(skb);
756 if (proto == IPPROTO_TCP)
757 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
758 else if (proto == IPPROTO_UDP)
759 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
762 if (vlan_tx_tag_present(skb)) {
763 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
764 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
765 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
768 /* To skip HW VLAN tagging: evt = 1, compl = 0 */
769 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
770 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
771 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
772 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
775 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
780 be_dws_le_to_cpu(wrb, sizeof(*wrb));
782 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
785 dma_unmap_single(dev, dma, wrb->frag_len,
788 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
792 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
793 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
798 struct device *dev = &adapter->pdev->dev;
799 struct sk_buff *first_skb = skb;
800 struct be_eth_wrb *wrb;
801 struct be_eth_hdr_wrb *hdr;
802 bool map_single = false;
805 hdr = queue_head_node(txq);
807 map_head = txq->head;
809 if (skb->len > skb->data_len) {
810 int len = skb_headlen(skb);
811 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
812 if (dma_mapping_error(dev, busaddr))
815 wrb = queue_head_node(txq);
816 wrb_fill(wrb, busaddr, len);
817 be_dws_cpu_to_le(wrb, sizeof(*wrb));
822 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
823 const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
824 busaddr = skb_frag_dma_map(dev, frag, 0,
825 skb_frag_size(frag), DMA_TO_DEVICE);
826 if (dma_mapping_error(dev, busaddr))
828 wrb = queue_head_node(txq);
829 wrb_fill(wrb, busaddr, skb_frag_size(frag));
830 be_dws_cpu_to_le(wrb, sizeof(*wrb));
832 copied += skb_frag_size(frag);
836 wrb = queue_head_node(txq);
838 be_dws_cpu_to_le(wrb, sizeof(*wrb));
842 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
843 be_dws_cpu_to_le(hdr, sizeof(*hdr));
847 txq->head = map_head;
849 wrb = queue_head_node(txq);
850 unmap_tx_frag(dev, wrb, map_single);
852 copied -= wrb->frag_len;
858 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
864 skb = skb_share_check(skb, GFP_ATOMIC);
868 if (vlan_tx_tag_present(skb))
869 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
871 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
873 vlan_tag = adapter->pvid;
874 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
875 * skip VLAN insertion
878 *skip_hw_vlan = true;
882 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
888 /* Insert the outer VLAN, if any */
889 if (adapter->qnq_vid) {
890 vlan_tag = adapter->qnq_vid;
891 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
895 *skip_hw_vlan = true;
901 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
903 struct ethhdr *eh = (struct ethhdr *)skb->data;
904 u16 offset = ETH_HLEN;
906 if (eh->h_proto == htons(ETH_P_IPV6)) {
907 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
909 offset += sizeof(struct ipv6hdr);
910 if (ip6h->nexthdr != NEXTHDR_TCP &&
911 ip6h->nexthdr != NEXTHDR_UDP) {
912 struct ipv6_opt_hdr *ehdr =
913 (struct ipv6_opt_hdr *) (skb->data + offset);
915 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
916 if (ehdr->hdrlen == 0xff)
923 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
925 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
928 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb)
930 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
933 static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter,
937 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
938 unsigned int eth_hdr_len;
941 /* For padded packets, BE HW modifies tot_len field in IP header
942 * incorrecly when VLAN tag is inserted by HW.
943 * For padded packets, Lancer computes incorrect checksum.
945 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
946 VLAN_ETH_HLEN : ETH_HLEN;
947 if (skb->len <= 60 &&
948 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
950 ip = (struct iphdr *)ip_hdr(skb);
951 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
954 /* If vlan tag is already inlined in the packet, skip HW VLAN
955 * tagging in pvid-tagging mode
957 if (be_pvid_tagging_enabled(adapter) &&
958 veh->h_vlan_proto == htons(ETH_P_8021Q))
959 *skip_hw_vlan = true;
961 /* HW has a bug wherein it will calculate CSUM for VLAN
962 * pkts even though it is disabled.
963 * Manually insert VLAN in pkt.
965 if (skb->ip_summed != CHECKSUM_PARTIAL &&
966 vlan_tx_tag_present(skb)) {
967 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
972 /* HW may lockup when VLAN HW tagging is requested on
973 * certain ipv6 packets. Drop such pkts if the HW workaround to
974 * skip HW tagging is not enabled by FW.
976 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
977 (adapter->pvid || adapter->qnq_vid) &&
978 !qnq_async_evt_rcvd(adapter)))
981 /* Manual VLAN tag insertion to prevent:
982 * ASIC lockup when the ASIC inserts VLAN tag into
983 * certain ipv6 packets. Insert VLAN tags in driver,
984 * and set event, completion, vlan bits accordingly
987 if (be_ipv6_tx_stall_chk(adapter, skb) &&
988 be_vlan_tag_tx_chk(adapter, skb)) {
989 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
996 dev_kfree_skb_any(skb);
1001 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
1002 struct sk_buff *skb,
1005 /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or
1006 * less may cause a transmit stall on that port. So the work-around is
1007 * to pad short packets (<= 32 bytes) to a 36-byte length.
1009 if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
1010 if (skb_padto(skb, 36))
1015 if (BEx_chip(adapter) || lancer_chip(adapter)) {
1016 skb = be_lancer_xmit_workarounds(adapter, skb, skip_hw_vlan);
1024 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
1026 struct be_adapter *adapter = netdev_priv(netdev);
1027 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
1028 struct be_queue_info *txq = &txo->q;
1029 bool dummy_wrb, stopped = false;
1030 u32 wrb_cnt = 0, copied = 0;
1031 bool skip_hw_vlan = false;
1032 u32 start = txq->head;
1034 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
1036 tx_stats(txo)->tx_drv_drops++;
1037 return NETDEV_TX_OK;
1040 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
1042 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
1045 int gso_segs = skb_shinfo(skb)->gso_segs;
1047 /* record the sent skb in the sent_skb table */
1048 BUG_ON(txo->sent_skb_list[start]);
1049 txo->sent_skb_list[start] = skb;
1051 /* Ensure txq has space for the next skb; Else stop the queue
1052 * *BEFORE* ringing the tx doorbell, so that we serialze the
1053 * tx compls of the current transmit which'll wake up the queue
1055 atomic_add(wrb_cnt, &txq->used);
1056 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
1058 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
1062 be_txq_notify(adapter, txo, wrb_cnt);
1064 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
1067 tx_stats(txo)->tx_drv_drops++;
1068 dev_kfree_skb_any(skb);
1070 return NETDEV_TX_OK;
1073 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1075 struct be_adapter *adapter = netdev_priv(netdev);
1076 if (new_mtu < BE_MIN_MTU ||
1077 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN))) {
1078 dev_info(&adapter->pdev->dev,
1079 "MTU must be between %d and %d bytes\n",
1081 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
1084 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
1085 netdev->mtu, new_mtu);
1086 netdev->mtu = new_mtu;
1091 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1092 * If the user configures more, place BE in vlan promiscuous mode.
1094 static int be_vid_config(struct be_adapter *adapter)
1096 u16 vids[BE_NUM_VLANS_SUPPORTED];
1100 /* No need to further configure vids if in promiscuous mode */
1101 if (adapter->promiscuous)
1104 if (adapter->vlans_added > be_max_vlans(adapter))
1105 goto set_vlan_promisc;
1107 /* Construct VLAN Table to give to HW */
1108 for_each_set_bit(i, adapter->vids, VLAN_N_VID)
1109 vids[num++] = cpu_to_le16(i);
1111 status = be_cmd_vlan_config(adapter, adapter->if_handle, vids, num);
1113 /* Set to VLAN promisc mode as setting VLAN filter failed */
1114 if (addl_status(status) ==
1115 MCC_ADDL_STATUS_INSUFFICIENT_RESOURCES)
1116 goto set_vlan_promisc;
1117 dev_err(&adapter->pdev->dev,
1118 "Setting HW VLAN filtering failed.\n");
1120 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1121 /* hw VLAN filtering re-enabled. */
1122 status = be_cmd_rx_filter(adapter,
1123 BE_FLAGS_VLAN_PROMISC, OFF);
1125 dev_info(&adapter->pdev->dev,
1126 "Disabling VLAN Promiscuous mode.\n");
1127 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1135 if (adapter->flags & BE_FLAGS_VLAN_PROMISC)
1138 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1140 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1141 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1143 dev_err(&adapter->pdev->dev,
1144 "Failed to enable VLAN Promiscuous mode.\n");
1148 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1150 struct be_adapter *adapter = netdev_priv(netdev);
1153 /* Packets with VID 0 are always received by Lancer by default */
1154 if (lancer_chip(adapter) && vid == 0)
1157 if (test_bit(vid, adapter->vids))
1160 set_bit(vid, adapter->vids);
1161 adapter->vlans_added++;
1163 status = be_vid_config(adapter);
1165 adapter->vlans_added--;
1166 clear_bit(vid, adapter->vids);
1172 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1174 struct be_adapter *adapter = netdev_priv(netdev);
1176 /* Packets with VID 0 are always received by Lancer by default */
1177 if (lancer_chip(adapter) && vid == 0)
1180 clear_bit(vid, adapter->vids);
1181 adapter->vlans_added--;
1183 return be_vid_config(adapter);
1186 static void be_clear_promisc(struct be_adapter *adapter)
1188 adapter->promiscuous = false;
1189 adapter->flags &= ~(BE_FLAGS_VLAN_PROMISC | BE_FLAGS_MCAST_PROMISC);
1191 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1194 static void be_set_rx_mode(struct net_device *netdev)
1196 struct be_adapter *adapter = netdev_priv(netdev);
1199 if (netdev->flags & IFF_PROMISC) {
1200 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1201 adapter->promiscuous = true;
1205 /* BE was previously in promiscuous mode; disable it */
1206 if (adapter->promiscuous) {
1207 be_clear_promisc(adapter);
1208 if (adapter->vlans_added)
1209 be_vid_config(adapter);
1212 /* Enable multicast promisc if num configured exceeds what we support */
1213 if (netdev->flags & IFF_ALLMULTI ||
1214 netdev_mc_count(netdev) > be_max_mc(adapter))
1215 goto set_mcast_promisc;
1217 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1218 struct netdev_hw_addr *ha;
1219 int i = 1; /* First slot is claimed by the Primary MAC */
1221 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1222 be_cmd_pmac_del(adapter, adapter->if_handle,
1223 adapter->pmac_id[i], 0);
1226 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1227 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1228 adapter->promiscuous = true;
1232 netdev_for_each_uc_addr(ha, adapter->netdev) {
1233 adapter->uc_macs++; /* First slot is for Primary MAC */
1234 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1236 &adapter->pmac_id[adapter->uc_macs], 0);
1240 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1242 if (adapter->flags & BE_FLAGS_MCAST_PROMISC)
1243 adapter->flags &= ~BE_FLAGS_MCAST_PROMISC;
1248 if (adapter->flags & BE_FLAGS_MCAST_PROMISC)
1251 /* Set to MCAST promisc mode if setting MULTICAST address fails
1252 * or if num configured exceeds what we support
1254 status = be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1256 adapter->flags |= BE_FLAGS_MCAST_PROMISC;
1261 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1263 struct be_adapter *adapter = netdev_priv(netdev);
1264 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1267 if (!sriov_enabled(adapter))
1270 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1273 if (BEx_chip(adapter)) {
1274 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1277 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1278 &vf_cfg->pmac_id, vf + 1);
1280 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1285 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1288 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1293 static int be_get_vf_config(struct net_device *netdev, int vf,
1294 struct ifla_vf_info *vi)
1296 struct be_adapter *adapter = netdev_priv(netdev);
1297 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1299 if (!sriov_enabled(adapter))
1302 if (vf >= adapter->num_vfs)
1306 vi->max_tx_rate = vf_cfg->tx_rate;
1307 vi->min_tx_rate = 0;
1308 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1309 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1310 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1311 vi->linkstate = adapter->vf_cfg[vf].plink_tracking;
1316 static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
1318 struct be_adapter *adapter = netdev_priv(netdev);
1319 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1322 if (!sriov_enabled(adapter))
1325 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1329 vlan |= qos << VLAN_PRIO_SHIFT;
1330 if (vf_cfg->vlan_tag != vlan)
1331 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1332 vf_cfg->if_handle, 0);
1334 /* Reset Transparent Vlan Tagging. */
1335 status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID,
1336 vf + 1, vf_cfg->if_handle, 0);
1340 vf_cfg->vlan_tag = vlan;
1342 dev_info(&adapter->pdev->dev,
1343 "VLAN %d config on VF %d failed\n", vlan, vf);
1347 static int be_set_vf_tx_rate(struct net_device *netdev, int vf,
1348 int min_tx_rate, int max_tx_rate)
1350 struct be_adapter *adapter = netdev_priv(netdev);
1351 struct device *dev = &adapter->pdev->dev;
1352 int percent_rate, status = 0;
1356 if (!sriov_enabled(adapter))
1359 if (vf >= adapter->num_vfs)
1368 status = be_cmd_link_status_query(adapter, &link_speed,
1374 dev_err(dev, "TX-rate setting not allowed when link is down\n");
1379 if (max_tx_rate < 100 || max_tx_rate > link_speed) {
1380 dev_err(dev, "TX-rate must be between 100 and %d Mbps\n",
1386 /* On Skyhawk the QOS setting must be done only as a % value */
1387 percent_rate = link_speed / 100;
1388 if (skyhawk_chip(adapter) && (max_tx_rate % percent_rate)) {
1389 dev_err(dev, "TX-rate must be a multiple of %d Mbps\n",
1396 status = be_cmd_config_qos(adapter, max_tx_rate, link_speed, vf + 1);
1400 adapter->vf_cfg[vf].tx_rate = max_tx_rate;
1404 dev_err(dev, "TX-rate setting of %dMbps on VF%d failed\n",
1408 static int be_set_vf_link_state(struct net_device *netdev, int vf,
1411 struct be_adapter *adapter = netdev_priv(netdev);
1414 if (!sriov_enabled(adapter))
1417 if (vf >= adapter->num_vfs)
1420 status = be_cmd_set_logical_link_config(adapter, link_state, vf+1);
1422 adapter->vf_cfg[vf].plink_tracking = link_state;
1427 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1430 aic->rx_pkts_prev = rx_pkts;
1431 aic->tx_reqs_prev = tx_pkts;
1435 static void be_eqd_update(struct be_adapter *adapter)
1437 struct be_set_eqd set_eqd[MAX_EVT_QS];
1438 int eqd, i, num = 0, start;
1439 struct be_aic_obj *aic;
1440 struct be_eq_obj *eqo;
1441 struct be_rx_obj *rxo;
1442 struct be_tx_obj *txo;
1443 u64 rx_pkts, tx_pkts;
1447 for_all_evt_queues(adapter, eqo, i) {
1448 aic = &adapter->aic_obj[eqo->idx];
1456 rxo = &adapter->rx_obj[eqo->idx];
1458 start = u64_stats_fetch_begin_irq(&rxo->stats.sync);
1459 rx_pkts = rxo->stats.rx_pkts;
1460 } while (u64_stats_fetch_retry_irq(&rxo->stats.sync, start));
1462 txo = &adapter->tx_obj[eqo->idx];
1464 start = u64_stats_fetch_begin_irq(&txo->stats.sync);
1465 tx_pkts = txo->stats.tx_reqs;
1466 } while (u64_stats_fetch_retry_irq(&txo->stats.sync, start));
1469 /* Skip, if wrapped around or first calculation */
1471 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1472 rx_pkts < aic->rx_pkts_prev ||
1473 tx_pkts < aic->tx_reqs_prev) {
1474 be_aic_update(aic, rx_pkts, tx_pkts, now);
1478 delta = jiffies_to_msecs(now - aic->jiffies);
1479 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1480 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1481 eqd = (pps / 15000) << 2;
1485 eqd = min_t(u32, eqd, aic->max_eqd);
1486 eqd = max_t(u32, eqd, aic->min_eqd);
1488 be_aic_update(aic, rx_pkts, tx_pkts, now);
1490 if (eqd != aic->prev_eqd) {
1491 set_eqd[num].delay_multiplier = (eqd * 65)/100;
1492 set_eqd[num].eq_id = eqo->q.id;
1493 aic->prev_eqd = eqd;
1499 be_cmd_modify_eqd(adapter, set_eqd, num);
1502 static void be_rx_stats_update(struct be_rx_obj *rxo,
1503 struct be_rx_compl_info *rxcp)
1505 struct be_rx_stats *stats = rx_stats(rxo);
1507 u64_stats_update_begin(&stats->sync);
1509 stats->rx_bytes += rxcp->pkt_size;
1511 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1512 stats->rx_mcast_pkts++;
1514 stats->rx_compl_err++;
1515 u64_stats_update_end(&stats->sync);
1518 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1520 /* L4 checksum is not reliable for non TCP/UDP packets.
1521 * Also ignore ipcksm for ipv6 pkts
1523 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1524 (rxcp->ip_csum || rxcp->ipv6) && !rxcp->err;
1527 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
1529 struct be_adapter *adapter = rxo->adapter;
1530 struct be_rx_page_info *rx_page_info;
1531 struct be_queue_info *rxq = &rxo->q;
1532 u16 frag_idx = rxq->tail;
1534 rx_page_info = &rxo->page_info_tbl[frag_idx];
1535 BUG_ON(!rx_page_info->page);
1537 if (rx_page_info->last_frag) {
1538 dma_unmap_page(&adapter->pdev->dev,
1539 dma_unmap_addr(rx_page_info, bus),
1540 adapter->big_page_size, DMA_FROM_DEVICE);
1541 rx_page_info->last_frag = false;
1543 dma_sync_single_for_cpu(&adapter->pdev->dev,
1544 dma_unmap_addr(rx_page_info, bus),
1545 rx_frag_size, DMA_FROM_DEVICE);
1548 queue_tail_inc(rxq);
1549 atomic_dec(&rxq->used);
1550 return rx_page_info;
1553 /* Throwaway the data in the Rx completion */
1554 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1555 struct be_rx_compl_info *rxcp)
1557 struct be_rx_page_info *page_info;
1558 u16 i, num_rcvd = rxcp->num_rcvd;
1560 for (i = 0; i < num_rcvd; i++) {
1561 page_info = get_rx_page_info(rxo);
1562 put_page(page_info->page);
1563 memset(page_info, 0, sizeof(*page_info));
1568 * skb_fill_rx_data forms a complete skb for an ether frame
1569 * indicated by rxcp.
1571 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1572 struct be_rx_compl_info *rxcp)
1574 struct be_rx_page_info *page_info;
1576 u16 hdr_len, curr_frag_len, remaining;
1579 page_info = get_rx_page_info(rxo);
1580 start = page_address(page_info->page) + page_info->page_offset;
1583 /* Copy data in the first descriptor of this completion */
1584 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1586 skb->len = curr_frag_len;
1587 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1588 memcpy(skb->data, start, curr_frag_len);
1589 /* Complete packet has now been moved to data */
1590 put_page(page_info->page);
1592 skb->tail += curr_frag_len;
1595 memcpy(skb->data, start, hdr_len);
1596 skb_shinfo(skb)->nr_frags = 1;
1597 skb_frag_set_page(skb, 0, page_info->page);
1598 skb_shinfo(skb)->frags[0].page_offset =
1599 page_info->page_offset + hdr_len;
1600 skb_frag_size_set(&skb_shinfo(skb)->frags[0],
1601 curr_frag_len - hdr_len);
1602 skb->data_len = curr_frag_len - hdr_len;
1603 skb->truesize += rx_frag_size;
1604 skb->tail += hdr_len;
1606 page_info->page = NULL;
1608 if (rxcp->pkt_size <= rx_frag_size) {
1609 BUG_ON(rxcp->num_rcvd != 1);
1613 /* More frags present for this completion */
1614 remaining = rxcp->pkt_size - curr_frag_len;
1615 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1616 page_info = get_rx_page_info(rxo);
1617 curr_frag_len = min(remaining, rx_frag_size);
1619 /* Coalesce all frags from the same physical page in one slot */
1620 if (page_info->page_offset == 0) {
1623 skb_frag_set_page(skb, j, page_info->page);
1624 skb_shinfo(skb)->frags[j].page_offset =
1625 page_info->page_offset;
1626 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1627 skb_shinfo(skb)->nr_frags++;
1629 put_page(page_info->page);
1632 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1633 skb->len += curr_frag_len;
1634 skb->data_len += curr_frag_len;
1635 skb->truesize += rx_frag_size;
1636 remaining -= curr_frag_len;
1637 page_info->page = NULL;
1639 BUG_ON(j > MAX_SKB_FRAGS);
1642 /* Process the RX completion indicated by rxcp when GRO is disabled */
1643 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1644 struct be_rx_compl_info *rxcp)
1646 struct be_adapter *adapter = rxo->adapter;
1647 struct net_device *netdev = adapter->netdev;
1648 struct sk_buff *skb;
1650 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1651 if (unlikely(!skb)) {
1652 rx_stats(rxo)->rx_drops_no_skbs++;
1653 be_rx_compl_discard(rxo, rxcp);
1657 skb_fill_rx_data(rxo, skb, rxcp);
1659 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1660 skb->ip_summed = CHECKSUM_UNNECESSARY;
1662 skb_checksum_none_assert(skb);
1664 skb->protocol = eth_type_trans(skb, netdev);
1665 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1666 if (netdev->features & NETIF_F_RXHASH)
1667 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1669 skb->encapsulation = rxcp->tunneled;
1670 skb_mark_napi_id(skb, napi);
1673 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1675 netif_receive_skb(skb);
1678 /* Process the RX completion indicated by rxcp when GRO is enabled */
1679 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1680 struct napi_struct *napi,
1681 struct be_rx_compl_info *rxcp)
1683 struct be_adapter *adapter = rxo->adapter;
1684 struct be_rx_page_info *page_info;
1685 struct sk_buff *skb = NULL;
1686 u16 remaining, curr_frag_len;
1689 skb = napi_get_frags(napi);
1691 be_rx_compl_discard(rxo, rxcp);
1695 remaining = rxcp->pkt_size;
1696 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1697 page_info = get_rx_page_info(rxo);
1699 curr_frag_len = min(remaining, rx_frag_size);
1701 /* Coalesce all frags from the same physical page in one slot */
1702 if (i == 0 || page_info->page_offset == 0) {
1703 /* First frag or Fresh page */
1705 skb_frag_set_page(skb, j, page_info->page);
1706 skb_shinfo(skb)->frags[j].page_offset =
1707 page_info->page_offset;
1708 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1710 put_page(page_info->page);
1712 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1713 skb->truesize += rx_frag_size;
1714 remaining -= curr_frag_len;
1715 memset(page_info, 0, sizeof(*page_info));
1717 BUG_ON(j > MAX_SKB_FRAGS);
1719 skb_shinfo(skb)->nr_frags = j + 1;
1720 skb->len = rxcp->pkt_size;
1721 skb->data_len = rxcp->pkt_size;
1722 skb->ip_summed = CHECKSUM_UNNECESSARY;
1723 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1724 if (adapter->netdev->features & NETIF_F_RXHASH)
1725 skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
1727 skb->encapsulation = rxcp->tunneled;
1728 skb_mark_napi_id(skb, napi);
1731 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1733 napi_gro_frags(napi);
1736 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1737 struct be_rx_compl_info *rxcp)
1740 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1741 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1742 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1743 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1744 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1746 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1748 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1750 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1752 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1754 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1756 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1758 rxcp->qnq = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, qnq,
1760 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1,
1763 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1765 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tunneled, compl);
1768 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1769 struct be_rx_compl_info *rxcp)
1772 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1773 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1774 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1775 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1776 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1778 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1780 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1782 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1784 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1786 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1788 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1790 rxcp->qnq = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, qnq,
1792 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1795 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1796 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1800 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1802 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1803 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1804 struct be_adapter *adapter = rxo->adapter;
1806 /* For checking the valid bit it is Ok to use either definition as the
1807 * valid bit is at the same position in both v0 and v1 Rx compl */
1808 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1812 be_dws_le_to_cpu(compl, sizeof(*compl));
1814 if (adapter->be3_native)
1815 be_parse_rx_compl_v1(compl, rxcp);
1817 be_parse_rx_compl_v0(compl, rxcp);
1823 /* In QNQ modes, if qnq bit is not set, then the packet was
1824 * tagged only with the transparent outer vlan-tag and must
1825 * not be treated as a vlan packet by host
1827 if (be_is_qnq_mode(adapter) && !rxcp->qnq)
1830 if (!lancer_chip(adapter))
1831 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1833 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1834 !test_bit(rxcp->vlan_tag, adapter->vids))
1838 /* As the compl has been parsed, reset it; we wont touch it again */
1839 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1841 queue_tail_inc(&rxo->cq);
1845 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1847 u32 order = get_order(size);
1851 return alloc_pages(gfp, order);
1855 * Allocate a page, split it to fragments of size rx_frag_size and post as
1856 * receive buffers to BE
1858 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1860 struct be_adapter *adapter = rxo->adapter;
1861 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1862 struct be_queue_info *rxq = &rxo->q;
1863 struct page *pagep = NULL;
1864 struct device *dev = &adapter->pdev->dev;
1865 struct be_eth_rx_d *rxd;
1866 u64 page_dmaaddr = 0, frag_dmaaddr;
1867 u32 posted, page_offset = 0;
1869 page_info = &rxo->page_info_tbl[rxq->head];
1870 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1872 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1873 if (unlikely(!pagep)) {
1874 rx_stats(rxo)->rx_post_fail++;
1877 page_dmaaddr = dma_map_page(dev, pagep, 0,
1878 adapter->big_page_size,
1880 if (dma_mapping_error(dev, page_dmaaddr)) {
1883 rx_stats(rxo)->rx_post_fail++;
1889 page_offset += rx_frag_size;
1891 page_info->page_offset = page_offset;
1892 page_info->page = pagep;
1894 rxd = queue_head_node(rxq);
1895 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1896 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1897 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1899 /* Any space left in the current big page for another frag? */
1900 if ((page_offset + rx_frag_size + rx_frag_size) >
1901 adapter->big_page_size) {
1903 page_info->last_frag = true;
1904 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1906 dma_unmap_addr_set(page_info, bus, frag_dmaaddr);
1909 prev_page_info = page_info;
1910 queue_head_inc(rxq);
1911 page_info = &rxo->page_info_tbl[rxq->head];
1914 /* Mark the last frag of a page when we break out of the above loop
1915 * with no more slots available in the RXQ
1918 prev_page_info->last_frag = true;
1919 dma_unmap_addr_set(prev_page_info, bus, page_dmaaddr);
1923 atomic_add(posted, &rxq->used);
1924 if (rxo->rx_post_starved)
1925 rxo->rx_post_starved = false;
1926 be_rxq_notify(adapter, rxq->id, posted);
1927 } else if (atomic_read(&rxq->used) == 0) {
1928 /* Let be_worker replenish when memory is available */
1929 rxo->rx_post_starved = true;
1933 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1935 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1937 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1941 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1943 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1945 queue_tail_inc(tx_cq);
1949 static u16 be_tx_compl_process(struct be_adapter *adapter,
1950 struct be_tx_obj *txo, u16 last_index)
1952 struct be_queue_info *txq = &txo->q;
1953 struct be_eth_wrb *wrb;
1954 struct sk_buff **sent_skbs = txo->sent_skb_list;
1955 struct sk_buff *sent_skb;
1956 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1957 bool unmap_skb_hdr = true;
1959 sent_skb = sent_skbs[txq->tail];
1961 sent_skbs[txq->tail] = NULL;
1963 /* skip header wrb */
1964 queue_tail_inc(txq);
1967 cur_index = txq->tail;
1968 wrb = queue_tail_node(txq);
1969 unmap_tx_frag(&adapter->pdev->dev, wrb,
1970 (unmap_skb_hdr && skb_headlen(sent_skb)));
1971 unmap_skb_hdr = false;
1974 queue_tail_inc(txq);
1975 } while (cur_index != last_index);
1977 dev_kfree_skb_any(sent_skb);
1981 /* Return the number of events in the event queue */
1982 static inline int events_get(struct be_eq_obj *eqo)
1984 struct be_eq_entry *eqe;
1988 eqe = queue_tail_node(&eqo->q);
1995 queue_tail_inc(&eqo->q);
2001 /* Leaves the EQ is disarmed state */
2002 static void be_eq_clean(struct be_eq_obj *eqo)
2004 int num = events_get(eqo);
2006 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
2009 static void be_rx_cq_clean(struct be_rx_obj *rxo)
2011 struct be_rx_page_info *page_info;
2012 struct be_queue_info *rxq = &rxo->q;
2013 struct be_queue_info *rx_cq = &rxo->cq;
2014 struct be_rx_compl_info *rxcp;
2015 struct be_adapter *adapter = rxo->adapter;
2018 /* Consume pending rx completions.
2019 * Wait for the flush completion (identified by zero num_rcvd)
2020 * to arrive. Notify CQ even when there are no more CQ entries
2021 * for HW to flush partially coalesced CQ entries.
2022 * In Lancer, there is no need to wait for flush compl.
2025 rxcp = be_rx_compl_get(rxo);
2027 if (lancer_chip(adapter))
2030 if (flush_wait++ > 10 || be_hw_error(adapter)) {
2031 dev_warn(&adapter->pdev->dev,
2032 "did not receive flush compl\n");
2035 be_cq_notify(adapter, rx_cq->id, true, 0);
2038 be_rx_compl_discard(rxo, rxcp);
2039 be_cq_notify(adapter, rx_cq->id, false, 1);
2040 if (rxcp->num_rcvd == 0)
2045 /* After cleanup, leave the CQ in unarmed state */
2046 be_cq_notify(adapter, rx_cq->id, false, 0);
2048 /* Then free posted rx buffers that were not used */
2049 while (atomic_read(&rxq->used) > 0) {
2050 page_info = get_rx_page_info(rxo);
2051 put_page(page_info->page);
2052 memset(page_info, 0, sizeof(*page_info));
2054 BUG_ON(atomic_read(&rxq->used));
2055 rxq->tail = rxq->head = 0;
2058 static void be_tx_compl_clean(struct be_adapter *adapter)
2060 struct be_tx_obj *txo;
2061 struct be_queue_info *txq;
2062 struct be_eth_tx_compl *txcp;
2063 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
2064 struct sk_buff *sent_skb;
2066 int i, pending_txqs;
2068 /* Stop polling for compls when HW has been silent for 10ms */
2070 pending_txqs = adapter->num_tx_qs;
2072 for_all_tx_queues(adapter, txo, i) {
2076 while ((txcp = be_tx_compl_get(&txo->cq))) {
2078 AMAP_GET_BITS(struct amap_eth_tx_compl,
2080 num_wrbs += be_tx_compl_process(adapter, txo,
2085 be_cq_notify(adapter, txo->cq.id, false, cmpl);
2086 atomic_sub(num_wrbs, &txq->used);
2089 if (atomic_read(&txq->used) == 0)
2093 if (pending_txqs == 0 || ++timeo > 10 || be_hw_error(adapter))
2099 for_all_tx_queues(adapter, txo, i) {
2101 if (atomic_read(&txq->used))
2102 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
2103 atomic_read(&txq->used));
2105 /* free posted tx for which compls will never arrive */
2106 while (atomic_read(&txq->used)) {
2107 sent_skb = txo->sent_skb_list[txq->tail];
2108 end_idx = txq->tail;
2109 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2111 index_adv(&end_idx, num_wrbs - 1, txq->len);
2112 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2113 atomic_sub(num_wrbs, &txq->used);
2118 static void be_evt_queues_destroy(struct be_adapter *adapter)
2120 struct be_eq_obj *eqo;
2123 for_all_evt_queues(adapter, eqo, i) {
2124 if (eqo->q.created) {
2126 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2127 napi_hash_del(&eqo->napi);
2128 netif_napi_del(&eqo->napi);
2130 be_queue_free(adapter, &eqo->q);
2134 static int be_evt_queues_create(struct be_adapter *adapter)
2136 struct be_queue_info *eq;
2137 struct be_eq_obj *eqo;
2138 struct be_aic_obj *aic;
2141 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2142 adapter->cfg_num_qs);
2144 for_all_evt_queues(adapter, eqo, i) {
2145 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2147 napi_hash_add(&eqo->napi);
2148 aic = &adapter->aic_obj[i];
2149 eqo->adapter = adapter;
2150 eqo->tx_budget = BE_TX_BUDGET;
2152 aic->max_eqd = BE_MAX_EQD;
2156 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2157 sizeof(struct be_eq_entry));
2161 rc = be_cmd_eq_create(adapter, eqo);
2168 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2170 struct be_queue_info *q;
2172 q = &adapter->mcc_obj.q;
2174 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2175 be_queue_free(adapter, q);
2177 q = &adapter->mcc_obj.cq;
2179 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2180 be_queue_free(adapter, q);
2183 /* Must be called only after TX qs are created as MCC shares TX EQ */
2184 static int be_mcc_queues_create(struct be_adapter *adapter)
2186 struct be_queue_info *q, *cq;
2188 cq = &adapter->mcc_obj.cq;
2189 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2190 sizeof(struct be_mcc_compl)))
2193 /* Use the default EQ for MCC completions */
2194 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2197 q = &adapter->mcc_obj.q;
2198 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2199 goto mcc_cq_destroy;
2201 if (be_cmd_mccq_create(adapter, q, cq))
2207 be_queue_free(adapter, q);
2209 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2211 be_queue_free(adapter, cq);
2216 static void be_tx_queues_destroy(struct be_adapter *adapter)
2218 struct be_queue_info *q;
2219 struct be_tx_obj *txo;
2222 for_all_tx_queues(adapter, txo, i) {
2225 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2226 be_queue_free(adapter, q);
2230 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2231 be_queue_free(adapter, q);
2235 static int be_tx_qs_create(struct be_adapter *adapter)
2237 struct be_queue_info *cq, *eq;
2238 struct be_tx_obj *txo;
2241 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2243 for_all_tx_queues(adapter, txo, i) {
2245 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2246 sizeof(struct be_eth_tx_compl));
2250 u64_stats_init(&txo->stats.sync);
2251 u64_stats_init(&txo->stats.sync_compl);
2253 /* If num_evt_qs is less than num_tx_qs, then more than
2254 * one txq share an eq
2256 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2257 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2261 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2262 sizeof(struct be_eth_wrb));
2266 status = be_cmd_txq_create(adapter, txo);
2271 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2272 adapter->num_tx_qs);
2276 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2278 struct be_queue_info *q;
2279 struct be_rx_obj *rxo;
2282 for_all_rx_queues(adapter, rxo, i) {
2285 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2286 be_queue_free(adapter, q);
2290 static int be_rx_cqs_create(struct be_adapter *adapter)
2292 struct be_queue_info *eq, *cq;
2293 struct be_rx_obj *rxo;
2296 /* We can create as many RSS rings as there are EQs. */
2297 adapter->num_rx_qs = adapter->num_evt_qs;
2299 /* We'll use RSS only if atleast 2 RSS rings are supported.
2300 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2302 if (adapter->num_rx_qs > 1)
2303 adapter->num_rx_qs++;
2305 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2306 for_all_rx_queues(adapter, rxo, i) {
2307 rxo->adapter = adapter;
2309 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2310 sizeof(struct be_eth_rx_compl));
2314 u64_stats_init(&rxo->stats.sync);
2315 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2316 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2321 dev_info(&adapter->pdev->dev,
2322 "created %d RSS queue(s) and 1 default RX queue\n",
2323 adapter->num_rx_qs - 1);
2327 static irqreturn_t be_intx(int irq, void *dev)
2329 struct be_eq_obj *eqo = dev;
2330 struct be_adapter *adapter = eqo->adapter;
2333 /* IRQ is not expected when NAPI is scheduled as the EQ
2334 * will not be armed.
2335 * But, this can happen on Lancer INTx where it takes
2336 * a while to de-assert INTx or in BE2 where occasionaly
2337 * an interrupt may be raised even when EQ is unarmed.
2338 * If NAPI is already scheduled, then counting & notifying
2339 * events will orphan them.
2341 if (napi_schedule_prep(&eqo->napi)) {
2342 num_evts = events_get(eqo);
2343 __napi_schedule(&eqo->napi);
2345 eqo->spurious_intr = 0;
2347 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2349 /* Return IRQ_HANDLED only for the the first spurious intr
2350 * after a valid intr to stop the kernel from branding
2351 * this irq as a bad one!
2353 if (num_evts || eqo->spurious_intr++ == 0)
2359 static irqreturn_t be_msix(int irq, void *dev)
2361 struct be_eq_obj *eqo = dev;
2363 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2364 napi_schedule(&eqo->napi);
2368 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2370 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2373 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2374 int budget, int polling)
2376 struct be_adapter *adapter = rxo->adapter;
2377 struct be_queue_info *rx_cq = &rxo->cq;
2378 struct be_rx_compl_info *rxcp;
2381 for (work_done = 0; work_done < budget; work_done++) {
2382 rxcp = be_rx_compl_get(rxo);
2386 /* Is it a flush compl that has no data */
2387 if (unlikely(rxcp->num_rcvd == 0))
2390 /* Discard compl with partial DMA Lancer B0 */
2391 if (unlikely(!rxcp->pkt_size)) {
2392 be_rx_compl_discard(rxo, rxcp);
2396 /* On BE drop pkts that arrive due to imperfect filtering in
2397 * promiscuous mode on some skews
2399 if (unlikely(rxcp->port != adapter->port_num &&
2400 !lancer_chip(adapter))) {
2401 be_rx_compl_discard(rxo, rxcp);
2405 /* Don't do gro when we're busy_polling */
2406 if (do_gro(rxcp) && polling != BUSY_POLLING)
2407 be_rx_compl_process_gro(rxo, napi, rxcp);
2409 be_rx_compl_process(rxo, napi, rxcp);
2412 be_rx_stats_update(rxo, rxcp);
2416 be_cq_notify(adapter, rx_cq->id, true, work_done);
2418 /* When an rx-obj gets into post_starved state, just
2419 * let be_worker do the posting.
2421 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2422 !rxo->rx_post_starved)
2423 be_post_rx_frags(rxo, GFP_ATOMIC);
2429 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2430 int budget, int idx)
2432 struct be_eth_tx_compl *txcp;
2433 int num_wrbs = 0, work_done;
2435 for (work_done = 0; work_done < budget; work_done++) {
2436 txcp = be_tx_compl_get(&txo->cq);
2439 num_wrbs += be_tx_compl_process(adapter, txo,
2440 AMAP_GET_BITS(struct
2446 be_cq_notify(adapter, txo->cq.id, true, work_done);
2447 atomic_sub(num_wrbs, &txo->q.used);
2449 /* As Tx wrbs have been freed up, wake up netdev queue
2450 * if it was stopped due to lack of tx wrbs. */
2451 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2452 atomic_read(&txo->q.used) < txo->q.len / 2) {
2453 netif_wake_subqueue(adapter->netdev, idx);
2456 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2457 tx_stats(txo)->tx_compl += work_done;
2458 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2460 return (work_done < budget); /* Done */
2463 int be_poll(struct napi_struct *napi, int budget)
2465 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2466 struct be_adapter *adapter = eqo->adapter;
2467 int max_work = 0, work, i, num_evts;
2468 struct be_rx_obj *rxo;
2471 num_evts = events_get(eqo);
2473 /* Process all TXQs serviced by this EQ */
2474 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2475 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2481 if (be_lock_napi(eqo)) {
2482 /* This loop will iterate twice for EQ0 in which
2483 * completions of the last RXQ (default one) are also processed
2484 * For other EQs the loop iterates only once
2486 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2487 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2488 max_work = max(work, max_work);
2490 be_unlock_napi(eqo);
2495 if (is_mcc_eqo(eqo))
2496 be_process_mcc(adapter);
2498 if (max_work < budget) {
2499 napi_complete(napi);
2500 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2502 /* As we'll continue in polling mode, count and clear events */
2503 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2508 #ifdef CONFIG_NET_RX_BUSY_POLL
2509 static int be_busy_poll(struct napi_struct *napi)
2511 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2512 struct be_adapter *adapter = eqo->adapter;
2513 struct be_rx_obj *rxo;
2516 if (!be_lock_busy_poll(eqo))
2517 return LL_FLUSH_BUSY;
2519 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2520 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2525 be_unlock_busy_poll(eqo);
2530 void be_detect_error(struct be_adapter *adapter)
2532 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2533 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2535 bool error_detected = false;
2536 struct device *dev = &adapter->pdev->dev;
2537 struct net_device *netdev = adapter->netdev;
2539 if (be_hw_error(adapter))
2542 if (lancer_chip(adapter)) {
2543 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2544 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2545 sliport_err1 = ioread32(adapter->db +
2546 SLIPORT_ERROR1_OFFSET);
2547 sliport_err2 = ioread32(adapter->db +
2548 SLIPORT_ERROR2_OFFSET);
2549 adapter->hw_error = true;
2550 /* Do not log error messages if its a FW reset */
2551 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
2552 sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
2553 dev_info(dev, "Firmware update in progress\n");
2555 error_detected = true;
2556 dev_err(dev, "Error detected in the card\n");
2557 dev_err(dev, "ERR: sliport status 0x%x\n",
2559 dev_err(dev, "ERR: sliport error1 0x%x\n",
2561 dev_err(dev, "ERR: sliport error2 0x%x\n",
2566 pci_read_config_dword(adapter->pdev,
2567 PCICFG_UE_STATUS_LOW, &ue_lo);
2568 pci_read_config_dword(adapter->pdev,
2569 PCICFG_UE_STATUS_HIGH, &ue_hi);
2570 pci_read_config_dword(adapter->pdev,
2571 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2572 pci_read_config_dword(adapter->pdev,
2573 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2575 ue_lo = (ue_lo & ~ue_lo_mask);
2576 ue_hi = (ue_hi & ~ue_hi_mask);
2578 /* On certain platforms BE hardware can indicate spurious UEs.
2579 * Allow HW to stop working completely in case of a real UE.
2580 * Hence not setting the hw_error for UE detection.
2583 if (ue_lo || ue_hi) {
2584 error_detected = true;
2586 "Unrecoverable Error detected in the adapter");
2587 dev_err(dev, "Please reboot server to recover");
2588 if (skyhawk_chip(adapter))
2589 adapter->hw_error = true;
2590 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2592 dev_err(dev, "UE: %s bit set\n",
2593 ue_status_low_desc[i]);
2595 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2597 dev_err(dev, "UE: %s bit set\n",
2598 ue_status_hi_desc[i]);
2603 netif_carrier_off(netdev);
2606 static void be_msix_disable(struct be_adapter *adapter)
2608 if (msix_enabled(adapter)) {
2609 pci_disable_msix(adapter->pdev);
2610 adapter->num_msix_vec = 0;
2611 adapter->num_msix_roce_vec = 0;
2615 static int be_msix_enable(struct be_adapter *adapter)
2618 struct device *dev = &adapter->pdev->dev;
2620 /* If RoCE is supported, program the max number of NIC vectors that
2621 * may be configured via set-channels, along with vectors needed for
2622 * RoCe. Else, just program the number we'll use initially.
2624 if (be_roce_supported(adapter))
2625 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2626 2 * num_online_cpus());
2628 num_vec = adapter->cfg_num_qs;
2630 for (i = 0; i < num_vec; i++)
2631 adapter->msix_entries[i].entry = i;
2633 num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
2634 MIN_MSIX_VECTORS, num_vec);
2638 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2639 adapter->num_msix_roce_vec = num_vec / 2;
2640 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2641 adapter->num_msix_roce_vec);
2644 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2646 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2647 adapter->num_msix_vec);
2651 dev_warn(dev, "MSIx enable failed\n");
2653 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2654 if (!be_physfn(adapter))
2659 static inline int be_msix_vec_get(struct be_adapter *adapter,
2660 struct be_eq_obj *eqo)
2662 return adapter->msix_entries[eqo->msix_idx].vector;
2665 static int be_msix_register(struct be_adapter *adapter)
2667 struct net_device *netdev = adapter->netdev;
2668 struct be_eq_obj *eqo;
2671 for_all_evt_queues(adapter, eqo, i) {
2672 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2673 vec = be_msix_vec_get(adapter, eqo);
2674 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2681 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2682 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2683 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2685 be_msix_disable(adapter);
2689 static int be_irq_register(struct be_adapter *adapter)
2691 struct net_device *netdev = adapter->netdev;
2694 if (msix_enabled(adapter)) {
2695 status = be_msix_register(adapter);
2698 /* INTx is not supported for VF */
2699 if (!be_physfn(adapter))
2703 /* INTx: only the first EQ is used */
2704 netdev->irq = adapter->pdev->irq;
2705 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2706 &adapter->eq_obj[0]);
2708 dev_err(&adapter->pdev->dev,
2709 "INTx request IRQ failed - err %d\n", status);
2713 adapter->isr_registered = true;
2717 static void be_irq_unregister(struct be_adapter *adapter)
2719 struct net_device *netdev = adapter->netdev;
2720 struct be_eq_obj *eqo;
2723 if (!adapter->isr_registered)
2727 if (!msix_enabled(adapter)) {
2728 free_irq(netdev->irq, &adapter->eq_obj[0]);
2733 for_all_evt_queues(adapter, eqo, i)
2734 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2737 adapter->isr_registered = false;
2740 static void be_rx_qs_destroy(struct be_adapter *adapter)
2742 struct be_queue_info *q;
2743 struct be_rx_obj *rxo;
2746 for_all_rx_queues(adapter, rxo, i) {
2749 be_cmd_rxq_destroy(adapter, q);
2750 be_rx_cq_clean(rxo);
2752 be_queue_free(adapter, q);
2756 static int be_close(struct net_device *netdev)
2758 struct be_adapter *adapter = netdev_priv(netdev);
2759 struct be_eq_obj *eqo;
2762 /* This protection is needed as be_close() may be called even when the
2763 * adapter is in cleared state (after eeh perm failure)
2765 if (!(adapter->flags & BE_FLAGS_SETUP_DONE))
2768 be_roce_dev_close(adapter);
2770 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2771 for_all_evt_queues(adapter, eqo, i) {
2772 napi_disable(&eqo->napi);
2773 be_disable_busy_poll(eqo);
2775 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2778 be_async_mcc_disable(adapter);
2780 /* Wait for all pending tx completions to arrive so that
2781 * all tx skbs are freed.
2783 netif_tx_disable(netdev);
2784 be_tx_compl_clean(adapter);
2786 be_rx_qs_destroy(adapter);
2788 for (i = 1; i < (adapter->uc_macs + 1); i++)
2789 be_cmd_pmac_del(adapter, adapter->if_handle,
2790 adapter->pmac_id[i], 0);
2791 adapter->uc_macs = 0;
2793 for_all_evt_queues(adapter, eqo, i) {
2794 if (msix_enabled(adapter))
2795 synchronize_irq(be_msix_vec_get(adapter, eqo));
2797 synchronize_irq(netdev->irq);
2801 be_irq_unregister(adapter);
2806 static int be_rx_qs_create(struct be_adapter *adapter)
2808 struct be_rx_obj *rxo;
2810 u8 rss_hkey[RSS_HASH_KEY_LEN];
2811 struct rss_info *rss = &adapter->rss_info;
2813 for_all_rx_queues(adapter, rxo, i) {
2814 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2815 sizeof(struct be_eth_rx_d));
2820 /* The FW would like the default RXQ to be created first */
2821 rxo = default_rxo(adapter);
2822 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2823 adapter->if_handle, false, &rxo->rss_id);
2827 for_all_rss_queues(adapter, rxo, i) {
2828 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2829 rx_frag_size, adapter->if_handle,
2830 true, &rxo->rss_id);
2835 if (be_multi_rxq(adapter)) {
2836 for (j = 0; j < RSS_INDIR_TABLE_LEN;
2837 j += adapter->num_rx_qs - 1) {
2838 for_all_rss_queues(adapter, rxo, i) {
2839 if ((j + i) >= RSS_INDIR_TABLE_LEN)
2841 rss->rsstable[j + i] = rxo->rss_id;
2842 rss->rss_queue[j + i] = i;
2845 rss->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2846 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2848 if (!BEx_chip(adapter))
2849 rss->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2850 RSS_ENABLE_UDP_IPV6;
2852 /* Disable RSS, if only default RX Q is created */
2853 rss->rss_flags = RSS_ENABLE_NONE;
2856 get_random_bytes(rss_hkey, RSS_HASH_KEY_LEN);
2857 rc = be_cmd_rss_config(adapter, rss->rsstable, rss->rss_flags,
2860 rss->rss_flags = RSS_ENABLE_NONE;
2864 memcpy(rss->rss_hkey, rss_hkey, RSS_HASH_KEY_LEN);
2866 /* First time posting */
2867 for_all_rx_queues(adapter, rxo, i)
2868 be_post_rx_frags(rxo, GFP_KERNEL);
2872 static int be_open(struct net_device *netdev)
2874 struct be_adapter *adapter = netdev_priv(netdev);
2875 struct be_eq_obj *eqo;
2876 struct be_rx_obj *rxo;
2877 struct be_tx_obj *txo;
2881 status = be_rx_qs_create(adapter);
2885 status = be_irq_register(adapter);
2889 for_all_rx_queues(adapter, rxo, i)
2890 be_cq_notify(adapter, rxo->cq.id, true, 0);
2892 for_all_tx_queues(adapter, txo, i)
2893 be_cq_notify(adapter, txo->cq.id, true, 0);
2895 be_async_mcc_enable(adapter);
2897 for_all_evt_queues(adapter, eqo, i) {
2898 napi_enable(&eqo->napi);
2899 be_enable_busy_poll(eqo);
2900 be_eq_notify(adapter, eqo->q.id, true, true, 0);
2902 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2904 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2906 be_link_status_update(adapter, link_status);
2908 netif_tx_start_all_queues(netdev);
2909 be_roce_dev_open(adapter);
2911 #ifdef CONFIG_BE2NET_VXLAN
2912 if (skyhawk_chip(adapter))
2913 vxlan_get_rx_port(netdev);
2918 be_close(adapter->netdev);
2922 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2924 struct be_dma_mem cmd;
2928 memset(mac, 0, ETH_ALEN);
2930 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2931 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2937 status = pci_write_config_dword(adapter->pdev,
2938 PCICFG_PM_CONTROL_OFFSET,
2939 PCICFG_PM_CONTROL_MASK);
2941 dev_err(&adapter->pdev->dev,
2942 "Could not enable Wake-on-lan\n");
2943 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2947 status = be_cmd_enable_magic_wol(adapter,
2948 adapter->netdev->dev_addr,
2950 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2951 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2953 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2954 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2955 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2958 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2963 * Generate a seed MAC address from the PF MAC Address using jhash.
2964 * MAC Address for VFs are assigned incrementally starting from the seed.
2965 * These addresses are programmed in the ASIC by the PF and the VF driver
2966 * queries for the MAC address during its probe.
2968 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2973 struct be_vf_cfg *vf_cfg;
2975 be_vf_eth_addr_generate(adapter, mac);
2977 for_all_vfs(adapter, vf_cfg, vf) {
2978 if (BEx_chip(adapter))
2979 status = be_cmd_pmac_add(adapter, mac,
2981 &vf_cfg->pmac_id, vf + 1);
2983 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2987 dev_err(&adapter->pdev->dev,
2988 "Mac address assignment failed for VF %d\n",
2991 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2998 static int be_vfs_mac_query(struct be_adapter *adapter)
3002 struct be_vf_cfg *vf_cfg;
3004 for_all_vfs(adapter, vf_cfg, vf) {
3005 status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
3006 mac, vf_cfg->if_handle,
3010 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
3015 static void be_vf_clear(struct be_adapter *adapter)
3017 struct be_vf_cfg *vf_cfg;
3020 if (pci_vfs_assigned(adapter->pdev)) {
3021 dev_warn(&adapter->pdev->dev,
3022 "VFs are assigned to VMs: not disabling VFs\n");
3026 pci_disable_sriov(adapter->pdev);
3028 for_all_vfs(adapter, vf_cfg, vf) {
3029 if (BEx_chip(adapter))
3030 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
3031 vf_cfg->pmac_id, vf + 1);
3033 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
3036 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
3039 kfree(adapter->vf_cfg);
3040 adapter->num_vfs = 0;
3043 static void be_clear_queues(struct be_adapter *adapter)
3045 be_mcc_queues_destroy(adapter);
3046 be_rx_cqs_destroy(adapter);
3047 be_tx_queues_destroy(adapter);
3048 be_evt_queues_destroy(adapter);
3051 static void be_cancel_worker(struct be_adapter *adapter)
3053 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
3054 cancel_delayed_work_sync(&adapter->work);
3055 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
3059 static void be_mac_clear(struct be_adapter *adapter)
3063 if (adapter->pmac_id) {
3064 for (i = 0; i < (adapter->uc_macs + 1); i++)
3065 be_cmd_pmac_del(adapter, adapter->if_handle,
3066 adapter->pmac_id[i], 0);
3067 adapter->uc_macs = 0;
3069 kfree(adapter->pmac_id);
3070 adapter->pmac_id = NULL;
3074 #ifdef CONFIG_BE2NET_VXLAN
3075 static void be_disable_vxlan_offloads(struct be_adapter *adapter)
3077 if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)
3078 be_cmd_manage_iface(adapter, adapter->if_handle,
3079 OP_CONVERT_TUNNEL_TO_NORMAL);
3081 if (adapter->vxlan_port)
3082 be_cmd_set_vxlan_port(adapter, 0);
3084 adapter->flags &= ~BE_FLAGS_VXLAN_OFFLOADS;
3085 adapter->vxlan_port = 0;
3089 static int be_clear(struct be_adapter *adapter)
3091 be_cancel_worker(adapter);
3093 if (sriov_enabled(adapter))
3094 be_vf_clear(adapter);
3096 /* Re-configure FW to distribute resources evenly across max-supported
3097 * number of VFs, only when VFs are not already enabled.
3099 if (be_physfn(adapter) && !pci_vfs_assigned(adapter->pdev))
3100 be_cmd_set_sriov_config(adapter, adapter->pool_res,
3101 pci_sriov_get_totalvfs(adapter->pdev));
3103 #ifdef CONFIG_BE2NET_VXLAN
3104 be_disable_vxlan_offloads(adapter);
3106 /* delete the primary mac along with the uc-mac list */
3107 be_mac_clear(adapter);
3109 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
3111 be_clear_queues(adapter);
3113 be_msix_disable(adapter);
3114 adapter->flags &= ~BE_FLAGS_SETUP_DONE;
3118 static int be_vfs_if_create(struct be_adapter *adapter)
3120 struct be_resources res = {0};
3121 struct be_vf_cfg *vf_cfg;
3122 u32 cap_flags, en_flags, vf;
3125 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3126 BE_IF_FLAGS_MULTICAST;
3128 for_all_vfs(adapter, vf_cfg, vf) {
3129 if (!BE3_chip(adapter)) {
3130 status = be_cmd_get_profile_config(adapter, &res,
3133 cap_flags = res.if_cap_flags;
3136 /* If a FW profile exists, then cap_flags are updated */
3137 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
3138 BE_IF_FLAGS_BROADCAST |
3139 BE_IF_FLAGS_MULTICAST);
3141 be_cmd_if_create(adapter, cap_flags, en_flags,
3142 &vf_cfg->if_handle, vf + 1);
3150 static int be_vf_setup_init(struct be_adapter *adapter)
3152 struct be_vf_cfg *vf_cfg;
3155 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
3157 if (!adapter->vf_cfg)
3160 for_all_vfs(adapter, vf_cfg, vf) {
3161 vf_cfg->if_handle = -1;
3162 vf_cfg->pmac_id = -1;
3167 static int be_vf_setup(struct be_adapter *adapter)
3169 struct device *dev = &adapter->pdev->dev;
3170 struct be_vf_cfg *vf_cfg;
3171 int status, old_vfs, vf;
3174 old_vfs = pci_num_vf(adapter->pdev);
3176 status = be_vf_setup_init(adapter);
3181 for_all_vfs(adapter, vf_cfg, vf) {
3182 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3187 status = be_vfs_mac_query(adapter);
3191 status = be_vfs_if_create(adapter);
3195 status = be_vf_eth_addr_config(adapter);
3200 for_all_vfs(adapter, vf_cfg, vf) {
3201 /* Allow VFs to programs MAC/VLAN filters */
3202 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3203 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3204 status = be_cmd_set_fn_privileges(adapter,
3209 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3213 /* Allow full available bandwidth */
3215 be_cmd_config_qos(adapter, 0, 0, vf + 1);
3218 be_cmd_enable_vf(adapter, vf + 1);
3219 be_cmd_set_logical_link_config(adapter,
3220 IFLA_VF_LINK_STATE_AUTO,
3226 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3228 dev_err(dev, "SRIOV enable failed\n");
3229 adapter->num_vfs = 0;
3235 dev_err(dev, "VF setup failed\n");
3236 be_vf_clear(adapter);
3240 /* Converting function_mode bits on BE3 to SH mc_type enums */
3242 static u8 be_convert_mc_type(u32 function_mode)
3244 if (function_mode & VNIC_MODE && function_mode & QNQ_MODE)
3246 else if (function_mode & QNQ_MODE)
3248 else if (function_mode & VNIC_MODE)
3250 else if (function_mode & UMC_ENABLED)
3256 /* On BE2/BE3 FW does not suggest the supported limits */
3257 static void BEx_get_resources(struct be_adapter *adapter,
3258 struct be_resources *res)
3260 bool use_sriov = adapter->num_vfs ? 1 : 0;
3262 if (be_physfn(adapter))
3263 res->max_uc_mac = BE_UC_PMAC_COUNT;
3265 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3267 adapter->mc_type = be_convert_mc_type(adapter->function_mode);
3269 if (be_is_mc(adapter)) {
3270 /* Assuming that there are 4 channels per port,
3271 * when multi-channel is enabled
3273 if (be_is_qnq_mode(adapter))
3274 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3276 /* In a non-qnq multichannel mode, the pvid
3277 * takes up one vlan entry
3279 res->max_vlans = (BE_NUM_VLANS_SUPPORTED / 4) - 1;
3281 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3284 res->max_mcast_mac = BE_MAX_MC;
3286 /* 1) For BE3 1Gb ports, FW does not support multiple TXQs
3287 * 2) Create multiple TX rings on a BE3-R multi-channel interface
3288 * *only* if it is RSS-capable.
3290 if (BE2_chip(adapter) || use_sriov || (adapter->port_num > 1) ||
3291 !be_physfn(adapter) || (be_is_mc(adapter) &&
3292 !(adapter->function_caps & BE_FUNCTION_CAPS_RSS)))
3295 res->max_tx_qs = BE3_MAX_TX_QS;
3297 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3298 !use_sriov && be_physfn(adapter))
3299 res->max_rss_qs = (adapter->be3_native) ?
3300 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3301 res->max_rx_qs = res->max_rss_qs + 1;
3303 if (be_physfn(adapter))
3304 res->max_evt_qs = (res->max_vfs > 0) ?
3305 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
3307 res->max_evt_qs = 1;
3309 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3310 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3311 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3314 static void be_setup_init(struct be_adapter *adapter)
3316 adapter->vlan_prio_bmap = 0xff;
3317 adapter->phy.link_speed = -1;
3318 adapter->if_handle = -1;
3319 adapter->be3_native = false;
3320 adapter->promiscuous = false;
3321 if (be_physfn(adapter))
3322 adapter->cmd_privileges = MAX_PRIVILEGES;
3324 adapter->cmd_privileges = MIN_PRIVILEGES;
3327 static int be_get_sriov_config(struct be_adapter *adapter)
3329 struct device *dev = &adapter->pdev->dev;
3330 struct be_resources res = {0};
3331 int status, max_vfs, old_vfs;
3333 status = be_cmd_get_profile_config(adapter, &res, 0);
3337 adapter->pool_res = res;
3339 /* Some old versions of BE3 FW don't report max_vfs value */
3340 if (BE3_chip(adapter) && !res.max_vfs) {
3341 max_vfs = pci_sriov_get_totalvfs(adapter->pdev);
3342 res.max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3345 adapter->pool_res.max_vfs = res.max_vfs;
3346 pci_sriov_set_totalvfs(adapter->pdev, be_max_vfs(adapter));
3348 if (!be_max_vfs(adapter)) {
3350 dev_warn(dev, "device doesn't support SRIOV\n");
3351 adapter->num_vfs = 0;
3355 /* validate num_vfs module param */
3356 old_vfs = pci_num_vf(adapter->pdev);
3358 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3359 if (old_vfs != num_vfs)
3360 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3361 adapter->num_vfs = old_vfs;
3363 if (num_vfs > be_max_vfs(adapter)) {
3364 dev_info(dev, "Resources unavailable to init %d VFs\n",
3366 dev_info(dev, "Limiting to %d VFs\n",
3367 be_max_vfs(adapter));
3369 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3375 static int be_get_resources(struct be_adapter *adapter)
3377 struct device *dev = &adapter->pdev->dev;
3378 struct be_resources res = {0};
3381 if (BEx_chip(adapter)) {
3382 BEx_get_resources(adapter, &res);
3386 /* For Lancer, SH etc read per-function resource limits from FW.
3387 * GET_FUNC_CONFIG returns per function guaranteed limits.
3388 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3390 if (!BEx_chip(adapter)) {
3391 status = be_cmd_get_func_config(adapter, &res);
3395 /* If RoCE may be enabled stash away half the EQs for RoCE */
3396 if (be_roce_supported(adapter))
3397 res.max_evt_qs /= 2;
3400 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3401 be_max_txqs(adapter), be_max_rxqs(adapter),
3402 be_max_rss(adapter), be_max_eqs(adapter),
3403 be_max_vfs(adapter));
3404 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3405 be_max_uc(adapter), be_max_mc(adapter),
3406 be_max_vlans(adapter));
3412 static int be_get_config(struct be_adapter *adapter)
3417 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3418 &adapter->function_mode,
3419 &adapter->function_caps,
3420 &adapter->asic_rev);
3424 if (be_physfn(adapter)) {
3425 status = be_cmd_get_active_profile(adapter, &profile_id);
3427 dev_info(&adapter->pdev->dev,
3428 "Using profile 0x%x\n", profile_id);
3430 status = be_get_sriov_config(adapter);
3434 /* When the HW is in SRIOV capable configuration, the PF-pool
3435 * resources are equally distributed across the max-number of
3436 * VFs. The user may request only a subset of the max-vfs to be
3437 * enabled. Based on num_vfs, redistribute the resources across
3438 * num_vfs so that each VF will have access to more number of
3439 * resources. This facility is not available in BE3 FW.
3440 * Also, this is done by FW in Lancer chip.
3442 if (!pci_num_vf(adapter->pdev)) {
3443 status = be_cmd_set_sriov_config(adapter,
3451 status = be_get_resources(adapter);
3455 adapter->pmac_id = kcalloc(be_max_uc(adapter),
3456 sizeof(*adapter->pmac_id), GFP_KERNEL);
3457 if (!adapter->pmac_id)
3460 /* Sanitize cfg_num_qs based on HW and platform limits */
3461 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3466 static int be_mac_setup(struct be_adapter *adapter)
3471 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3472 status = be_cmd_get_perm_mac(adapter, mac);
3476 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3477 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3479 /* Maybe the HW was reset; dev_addr must be re-programmed */
3480 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3483 /* For BE3-R VFs, the PF programs the initial MAC address */
3484 if (!(BEx_chip(adapter) && be_virtfn(adapter)))
3485 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3486 &adapter->pmac_id[0], 0);
3490 static void be_schedule_worker(struct be_adapter *adapter)
3492 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3493 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3496 static int be_setup_queues(struct be_adapter *adapter)
3498 struct net_device *netdev = adapter->netdev;
3501 status = be_evt_queues_create(adapter);
3505 status = be_tx_qs_create(adapter);
3509 status = be_rx_cqs_create(adapter);
3513 status = be_mcc_queues_create(adapter);
3517 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3521 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3527 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3531 int be_update_queues(struct be_adapter *adapter)
3533 struct net_device *netdev = adapter->netdev;
3536 if (netif_running(netdev))
3539 be_cancel_worker(adapter);
3541 /* If any vectors have been shared with RoCE we cannot re-program
3544 if (!adapter->num_msix_roce_vec)
3545 be_msix_disable(adapter);
3547 be_clear_queues(adapter);
3549 if (!msix_enabled(adapter)) {
3550 status = be_msix_enable(adapter);
3555 status = be_setup_queues(adapter);
3559 be_schedule_worker(adapter);
3561 if (netif_running(netdev))
3562 status = be_open(netdev);
3567 static int be_setup(struct be_adapter *adapter)
3569 struct device *dev = &adapter->pdev->dev;
3570 u32 tx_fc, rx_fc, en_flags;
3573 be_setup_init(adapter);
3575 if (!lancer_chip(adapter))
3576 be_cmd_req_native_mode(adapter);
3578 status = be_get_config(adapter);
3582 status = be_msix_enable(adapter);
3586 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3587 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3588 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3589 en_flags |= BE_IF_FLAGS_RSS;
3590 en_flags = en_flags & be_if_cap_flags(adapter);
3591 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3592 &adapter->if_handle, 0);
3596 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3598 status = be_setup_queues(adapter);
3603 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3605 status = be_mac_setup(adapter);
3609 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3611 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
3612 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
3614 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
3617 if (adapter->vlans_added)
3618 be_vid_config(adapter);
3620 be_set_rx_mode(adapter->netdev);
3622 be_cmd_get_acpi_wol_cap(adapter);
3624 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3626 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3627 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3630 if (be_physfn(adapter))
3631 be_cmd_set_logical_link_config(adapter,
3632 IFLA_VF_LINK_STATE_AUTO, 0);
3634 if (adapter->num_vfs)
3635 be_vf_setup(adapter);
3637 status = be_cmd_get_phy_info(adapter);
3638 if (!status && be_pause_supported(adapter))
3639 adapter->phy.fc_autoneg = 1;
3641 be_schedule_worker(adapter);
3642 adapter->flags |= BE_FLAGS_SETUP_DONE;
3649 #ifdef CONFIG_NET_POLL_CONTROLLER
3650 static void be_netpoll(struct net_device *netdev)
3652 struct be_adapter *adapter = netdev_priv(netdev);
3653 struct be_eq_obj *eqo;
3656 for_all_evt_queues(adapter, eqo, i) {
3657 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3658 napi_schedule(&eqo->napi);
3665 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3667 static bool phy_flashing_required(struct be_adapter *adapter)
3669 return (adapter->phy.phy_type == TN_8022 &&
3670 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3673 static bool is_comp_in_ufi(struct be_adapter *adapter,
3674 struct flash_section_info *fsec, int type)
3676 int i = 0, img_type = 0;
3677 struct flash_section_info_g2 *fsec_g2 = NULL;
3679 if (BE2_chip(adapter))
3680 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3682 for (i = 0; i < MAX_FLASH_COMP; i++) {
3684 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3686 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3688 if (img_type == type)
3695 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3697 const struct firmware *fw)
3699 struct flash_section_info *fsec = NULL;
3700 const u8 *p = fw->data;
3703 while (p < (fw->data + fw->size)) {
3704 fsec = (struct flash_section_info *)p;
3705 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3712 static int be_check_flash_crc(struct be_adapter *adapter, const u8 *p,
3713 u32 img_offset, u32 img_size, int hdr_size,
3714 u16 img_optype, bool *crc_match)
3720 status = be_cmd_get_flash_crc(adapter, crc, img_optype, img_size - 4);
3724 crc_offset = hdr_size + img_offset + img_size - 4;
3726 /* Skip flashing, if crc of flashed region matches */
3727 if (!memcmp(crc, p + crc_offset, 4))
3735 static int be_flash(struct be_adapter *adapter, const u8 *img,
3736 struct be_dma_mem *flash_cmd, int optype, int img_size)
3738 struct be_cmd_write_flashrom *req = flash_cmd->va;
3739 u32 total_bytes, flash_op, num_bytes;
3742 total_bytes = img_size;
3743 while (total_bytes) {
3744 num_bytes = min_t(u32, 32*1024, total_bytes);
3746 total_bytes -= num_bytes;
3749 if (optype == OPTYPE_PHY_FW)
3750 flash_op = FLASHROM_OPER_PHY_FLASH;
3752 flash_op = FLASHROM_OPER_FLASH;
3754 if (optype == OPTYPE_PHY_FW)
3755 flash_op = FLASHROM_OPER_PHY_SAVE;
3757 flash_op = FLASHROM_OPER_SAVE;
3760 memcpy(req->data_buf, img, num_bytes);
3762 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3763 flash_op, num_bytes);
3764 if (base_status(status) == MCC_STATUS_ILLEGAL_REQUEST &&
3765 optype == OPTYPE_PHY_FW)
3773 /* For BE2, BE3 and BE3-R */
3774 static int be_flash_BEx(struct be_adapter *adapter,
3775 const struct firmware *fw,
3776 struct be_dma_mem *flash_cmd, int num_of_images)
3778 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3779 struct device *dev = &adapter->pdev->dev;
3780 struct flash_section_info *fsec = NULL;
3781 int status, i, filehdr_size, num_comp;
3782 const struct flash_comp *pflashcomp;
3786 struct flash_comp gen3_flash_types[] = {
3787 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3788 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3789 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3790 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3791 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3792 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3793 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3794 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3795 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3796 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3797 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3798 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3799 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3800 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3801 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3802 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3803 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3804 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3805 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3806 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3809 struct flash_comp gen2_flash_types[] = {
3810 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3811 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3812 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3813 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3814 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3815 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3816 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3817 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3818 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3819 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3820 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3821 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3822 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3823 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3824 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3825 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3828 if (BE3_chip(adapter)) {
3829 pflashcomp = gen3_flash_types;
3830 filehdr_size = sizeof(struct flash_file_hdr_g3);
3831 num_comp = ARRAY_SIZE(gen3_flash_types);
3833 pflashcomp = gen2_flash_types;
3834 filehdr_size = sizeof(struct flash_file_hdr_g2);
3835 num_comp = ARRAY_SIZE(gen2_flash_types);
3838 /* Get flash section info*/
3839 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3841 dev_err(dev, "Invalid Cookie. FW image may be corrupted\n");
3844 for (i = 0; i < num_comp; i++) {
3845 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3848 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3849 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3852 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3853 !phy_flashing_required(adapter))
3856 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3857 status = be_check_flash_crc(adapter, fw->data,
3858 pflashcomp[i].offset,
3862 OPTYPE_REDBOOT, &crc_match);
3865 "Could not get CRC for 0x%x region\n",
3866 pflashcomp[i].optype);
3874 p = fw->data + filehdr_size + pflashcomp[i].offset +
3876 if (p + pflashcomp[i].size > fw->data + fw->size)
3879 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3880 pflashcomp[i].size);
3882 dev_err(dev, "Flashing section type 0x%x failed\n",
3883 pflashcomp[i].img_type);
3890 static u16 be_get_img_optype(struct flash_section_entry fsec_entry)
3892 u32 img_type = le32_to_cpu(fsec_entry.type);
3893 u16 img_optype = le16_to_cpu(fsec_entry.optype);
3895 if (img_optype != 0xFFFF)
3899 case IMAGE_FIRMWARE_iSCSI:
3900 img_optype = OPTYPE_ISCSI_ACTIVE;
3902 case IMAGE_BOOT_CODE:
3903 img_optype = OPTYPE_REDBOOT;
3905 case IMAGE_OPTION_ROM_ISCSI:
3906 img_optype = OPTYPE_BIOS;
3908 case IMAGE_OPTION_ROM_PXE:
3909 img_optype = OPTYPE_PXE_BIOS;
3911 case IMAGE_OPTION_ROM_FCoE:
3912 img_optype = OPTYPE_FCOE_BIOS;
3914 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3915 img_optype = OPTYPE_ISCSI_BACKUP;
3918 img_optype = OPTYPE_NCSI_FW;
3920 case IMAGE_FLASHISM_JUMPVECTOR:
3921 img_optype = OPTYPE_FLASHISM_JUMPVECTOR;
3923 case IMAGE_FIRMWARE_PHY:
3924 img_optype = OPTYPE_SH_PHY_FW;
3926 case IMAGE_REDBOOT_DIR:
3927 img_optype = OPTYPE_REDBOOT_DIR;
3929 case IMAGE_REDBOOT_CONFIG:
3930 img_optype = OPTYPE_REDBOOT_CONFIG;
3933 img_optype = OPTYPE_UFI_DIR;
3942 static int be_flash_skyhawk(struct be_adapter *adapter,
3943 const struct firmware *fw,
3944 struct be_dma_mem *flash_cmd, int num_of_images)
3946 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3947 struct device *dev = &adapter->pdev->dev;
3948 struct flash_section_info *fsec = NULL;
3949 u32 img_offset, img_size, img_type;
3950 int status, i, filehdr_size;
3951 bool crc_match, old_fw_img;
3955 filehdr_size = sizeof(struct flash_file_hdr_g3);
3956 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3958 dev_err(dev, "Invalid Cookie. FW image may be corrupted\n");
3962 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3963 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3964 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3965 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3966 img_optype = be_get_img_optype(fsec->fsec_entry[i]);
3967 old_fw_img = fsec->fsec_entry[i].optype == 0xFFFF;
3969 if (img_optype == 0xFFFF)
3971 /* Don't bother verifying CRC if an old FW image is being
3977 status = be_check_flash_crc(adapter, fw->data, img_offset,
3978 img_size, filehdr_size +
3979 img_hdrs_size, img_optype,
3981 /* The current FW image on the card does not recognize the new
3982 * FLASH op_type. The FW download is partially complete.
3983 * Reboot the server now to enable FW image to recognize the
3984 * new FLASH op_type. To complete the remaining process,
3985 * download the same FW again after the reboot.
3987 if (base_status(status) == MCC_STATUS_ILLEGAL_REQUEST ||
3988 base_status(status) == MCC_STATUS_ILLEGAL_FIELD) {
3989 dev_err(dev, "Flash incomplete. Reset the server\n");
3990 dev_err(dev, "Download FW image again after reset\n");
3992 } else if (status) {
3993 dev_err(dev, "Could not get CRC for 0x%x region\n",
4002 p = fw->data + filehdr_size + img_offset + img_hdrs_size;
4003 if (p + img_size > fw->data + fw->size)
4006 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
4007 /* For old FW images ignore ILLEGAL_FIELD error or errors on
4011 (base_status(status) == MCC_STATUS_ILLEGAL_FIELD ||
4012 (img_optype == OPTYPE_UFI_DIR &&
4013 base_status(status) == MCC_STATUS_FAILED))) {
4015 } else if (status) {
4016 dev_err(dev, "Flashing section type 0x%x failed\n",
4024 static int lancer_fw_download(struct be_adapter *adapter,
4025 const struct firmware *fw)
4027 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
4028 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
4029 struct be_dma_mem flash_cmd;
4030 const u8 *data_ptr = NULL;
4031 u8 *dest_image_ptr = NULL;
4032 size_t image_size = 0;
4034 u32 data_written = 0;
4040 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
4041 dev_err(&adapter->pdev->dev,
4042 "FW Image not properly aligned. "
4043 "Length must be 4 byte aligned.\n");
4045 goto lancer_fw_exit;
4048 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
4049 + LANCER_FW_DOWNLOAD_CHUNK;
4050 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
4051 &flash_cmd.dma, GFP_KERNEL);
4052 if (!flash_cmd.va) {
4054 goto lancer_fw_exit;
4057 dest_image_ptr = flash_cmd.va +
4058 sizeof(struct lancer_cmd_req_write_object);
4059 image_size = fw->size;
4060 data_ptr = fw->data;
4062 while (image_size) {
4063 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
4065 /* Copy the image chunk content. */
4066 memcpy(dest_image_ptr, data_ptr, chunk_size);
4068 status = lancer_cmd_write_object(adapter, &flash_cmd,
4070 LANCER_FW_DOWNLOAD_LOCATION,
4071 &data_written, &change_status,
4076 offset += data_written;
4077 data_ptr += data_written;
4078 image_size -= data_written;
4082 /* Commit the FW written */
4083 status = lancer_cmd_write_object(adapter, &flash_cmd,
4085 LANCER_FW_DOWNLOAD_LOCATION,
4086 &data_written, &change_status,
4090 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
4093 dev_err(&adapter->pdev->dev,
4094 "Firmware load error. "
4095 "Status code: 0x%x Additional Status: 0x%x\n",
4096 status, add_status);
4097 goto lancer_fw_exit;
4100 if (change_status == LANCER_FW_RESET_NEEDED) {
4101 dev_info(&adapter->pdev->dev,
4102 "Resetting adapter to activate new FW\n");
4103 status = lancer_physdev_ctrl(adapter,
4104 PHYSDEV_CONTROL_FW_RESET_MASK);
4106 dev_err(&adapter->pdev->dev,
4107 "Adapter busy for FW reset.\n"
4108 "New FW will not be active.\n");
4109 goto lancer_fw_exit;
4111 } else if (change_status != LANCER_NO_RESET_NEEDED) {
4112 dev_err(&adapter->pdev->dev,
4113 "System reboot required for new FW to be active\n");
4116 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
4123 #define UFI_TYPE3R 10
4125 static int be_get_ufi_type(struct be_adapter *adapter,
4126 struct flash_file_hdr_g3 *fhdr)
4129 goto be_get_ufi_exit;
4131 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
4133 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
4134 if (fhdr->asic_type_rev == 0x10)
4138 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
4142 dev_err(&adapter->pdev->dev,
4143 "UFI and Interface are not compatible for flashing\n");
4147 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
4149 struct flash_file_hdr_g3 *fhdr3;
4150 struct image_hdr *img_hdr_ptr = NULL;
4151 struct be_dma_mem flash_cmd;
4153 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
4155 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
4156 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
4157 &flash_cmd.dma, GFP_KERNEL);
4158 if (!flash_cmd.va) {
4164 fhdr3 = (struct flash_file_hdr_g3 *)p;
4166 ufi_type = be_get_ufi_type(adapter, fhdr3);
4168 num_imgs = le32_to_cpu(fhdr3->num_imgs);
4169 for (i = 0; i < num_imgs; i++) {
4170 img_hdr_ptr = (struct image_hdr *)(fw->data +
4171 (sizeof(struct flash_file_hdr_g3) +
4172 i * sizeof(struct image_hdr)));
4173 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
4176 status = be_flash_skyhawk(adapter, fw,
4177 &flash_cmd, num_imgs);
4180 status = be_flash_BEx(adapter, fw, &flash_cmd,
4184 /* Do not flash this ufi on BE3-R cards */
4185 if (adapter->asic_rev < 0x10)
4186 status = be_flash_BEx(adapter, fw,
4191 dev_err(&adapter->pdev->dev,
4192 "Can't load BE3 UFI on BE3R\n");
4198 if (ufi_type == UFI_TYPE2)
4199 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
4200 else if (ufi_type == -1)
4203 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
4206 dev_err(&adapter->pdev->dev, "Firmware load error\n");
4210 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
4216 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
4218 const struct firmware *fw;
4221 if (!netif_running(adapter->netdev)) {
4222 dev_err(&adapter->pdev->dev,
4223 "Firmware load not allowed (interface is down)\n");
4227 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
4231 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
4233 if (lancer_chip(adapter))
4234 status = lancer_fw_download(adapter, fw);
4236 status = be_fw_download(adapter, fw);
4239 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
4240 adapter->fw_on_flash);
4243 release_firmware(fw);
4247 static int be_ndo_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh)
4249 struct be_adapter *adapter = netdev_priv(dev);
4250 struct nlattr *attr, *br_spec;
4255 if (!sriov_enabled(adapter))
4258 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
4260 nla_for_each_nested(attr, br_spec, rem) {
4261 if (nla_type(attr) != IFLA_BRIDGE_MODE)
4264 mode = nla_get_u16(attr);
4265 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
4268 status = be_cmd_set_hsw_config(adapter, 0, 0,
4270 mode == BRIDGE_MODE_VEPA ?
4271 PORT_FWD_TYPE_VEPA :
4276 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
4277 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4282 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
4283 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4288 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4289 struct net_device *dev, u32 filter_mask)
4291 struct be_adapter *adapter = netdev_priv(dev);
4295 if (!sriov_enabled(adapter))
4298 /* BE and Lancer chips support VEB mode only */
4299 if (BEx_chip(adapter) || lancer_chip(adapter)) {
4300 hsw_mode = PORT_FWD_TYPE_VEB;
4302 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4303 adapter->if_handle, &hsw_mode);
4308 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4309 hsw_mode == PORT_FWD_TYPE_VEPA ?
4310 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4313 #ifdef CONFIG_BE2NET_VXLAN
4314 static void be_add_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
4317 struct be_adapter *adapter = netdev_priv(netdev);
4318 struct device *dev = &adapter->pdev->dev;
4321 if (lancer_chip(adapter) || BEx_chip(adapter))
4324 if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) {
4325 dev_warn(dev, "Cannot add UDP port %d for VxLAN offloads\n",
4328 "Only one UDP port supported for VxLAN offloads\n");
4332 status = be_cmd_manage_iface(adapter, adapter->if_handle,
4333 OP_CONVERT_NORMAL_TO_TUNNEL);
4335 dev_warn(dev, "Failed to convert normal interface to tunnel\n");
4339 status = be_cmd_set_vxlan_port(adapter, port);
4341 dev_warn(dev, "Failed to add VxLAN port\n");
4344 adapter->flags |= BE_FLAGS_VXLAN_OFFLOADS;
4345 adapter->vxlan_port = port;
4347 dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n",
4351 be_disable_vxlan_offloads(adapter);
4355 static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
4358 struct be_adapter *adapter = netdev_priv(netdev);
4360 if (lancer_chip(adapter) || BEx_chip(adapter))
4363 if (adapter->vxlan_port != port)
4366 be_disable_vxlan_offloads(adapter);
4368 dev_info(&adapter->pdev->dev,
4369 "Disabled VxLAN offloads for UDP port %d\n",
4374 static const struct net_device_ops be_netdev_ops = {
4375 .ndo_open = be_open,
4376 .ndo_stop = be_close,
4377 .ndo_start_xmit = be_xmit,
4378 .ndo_set_rx_mode = be_set_rx_mode,
4379 .ndo_set_mac_address = be_mac_addr_set,
4380 .ndo_change_mtu = be_change_mtu,
4381 .ndo_get_stats64 = be_get_stats64,
4382 .ndo_validate_addr = eth_validate_addr,
4383 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
4384 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
4385 .ndo_set_vf_mac = be_set_vf_mac,
4386 .ndo_set_vf_vlan = be_set_vf_vlan,
4387 .ndo_set_vf_rate = be_set_vf_tx_rate,
4388 .ndo_get_vf_config = be_get_vf_config,
4389 .ndo_set_vf_link_state = be_set_vf_link_state,
4390 #ifdef CONFIG_NET_POLL_CONTROLLER
4391 .ndo_poll_controller = be_netpoll,
4393 .ndo_bridge_setlink = be_ndo_bridge_setlink,
4394 .ndo_bridge_getlink = be_ndo_bridge_getlink,
4395 #ifdef CONFIG_NET_RX_BUSY_POLL
4396 .ndo_busy_poll = be_busy_poll,
4398 #ifdef CONFIG_BE2NET_VXLAN
4399 .ndo_add_vxlan_port = be_add_vxlan_port,
4400 .ndo_del_vxlan_port = be_del_vxlan_port,
4404 static void be_netdev_init(struct net_device *netdev)
4406 struct be_adapter *adapter = netdev_priv(netdev);
4408 if (skyhawk_chip(adapter)) {
4409 netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
4410 NETIF_F_TSO | NETIF_F_TSO6 |
4411 NETIF_F_GSO_UDP_TUNNEL;
4412 netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
4414 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4415 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4416 NETIF_F_HW_VLAN_CTAG_TX;
4417 if (be_multi_rxq(adapter))
4418 netdev->hw_features |= NETIF_F_RXHASH;
4420 netdev->features |= netdev->hw_features |
4421 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4423 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4424 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4426 netdev->priv_flags |= IFF_UNICAST_FLT;
4428 netdev->flags |= IFF_MULTICAST;
4430 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4432 netdev->netdev_ops = &be_netdev_ops;
4434 netdev->ethtool_ops = &be_ethtool_ops;
4437 static void be_unmap_pci_bars(struct be_adapter *adapter)
4440 pci_iounmap(adapter->pdev, adapter->csr);
4442 pci_iounmap(adapter->pdev, adapter->db);
4445 static int db_bar(struct be_adapter *adapter)
4447 if (lancer_chip(adapter) || !be_physfn(adapter))
4453 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4455 if (skyhawk_chip(adapter)) {
4456 adapter->roce_db.size = 4096;
4457 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4459 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4465 static int be_map_pci_bars(struct be_adapter *adapter)
4469 if (BEx_chip(adapter) && be_physfn(adapter)) {
4470 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4471 if (adapter->csr == NULL)
4475 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4480 be_roce_map_pci_bars(adapter);
4484 be_unmap_pci_bars(adapter);
4488 static void be_ctrl_cleanup(struct be_adapter *adapter)
4490 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4492 be_unmap_pci_bars(adapter);
4495 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4498 mem = &adapter->rx_filter;
4500 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4504 static int be_ctrl_init(struct be_adapter *adapter)
4506 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4507 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4508 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4512 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4513 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4514 SLI_INTF_FAMILY_SHIFT;
4515 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4517 status = be_map_pci_bars(adapter);
4521 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4522 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4523 mbox_mem_alloc->size,
4524 &mbox_mem_alloc->dma,
4526 if (!mbox_mem_alloc->va) {
4528 goto unmap_pci_bars;
4530 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4531 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4532 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4533 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4535 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4536 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4537 rx_filter->size, &rx_filter->dma,
4539 if (rx_filter->va == NULL) {
4544 mutex_init(&adapter->mbox_lock);
4545 spin_lock_init(&adapter->mcc_lock);
4546 spin_lock_init(&adapter->mcc_cq_lock);
4548 init_completion(&adapter->et_cmd_compl);
4549 pci_save_state(adapter->pdev);
4553 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4554 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4557 be_unmap_pci_bars(adapter);
4563 static void be_stats_cleanup(struct be_adapter *adapter)
4565 struct be_dma_mem *cmd = &adapter->stats_cmd;
4568 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4572 static int be_stats_init(struct be_adapter *adapter)
4574 struct be_dma_mem *cmd = &adapter->stats_cmd;
4576 if (lancer_chip(adapter))
4577 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4578 else if (BE2_chip(adapter))
4579 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4580 else if (BE3_chip(adapter))
4581 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4583 /* ALL non-BE ASICs */
4584 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4586 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4588 if (cmd->va == NULL)
4593 static void be_remove(struct pci_dev *pdev)
4595 struct be_adapter *adapter = pci_get_drvdata(pdev);
4600 be_roce_dev_remove(adapter);
4601 be_intr_set(adapter, false);
4603 cancel_delayed_work_sync(&adapter->func_recovery_work);
4605 unregister_netdev(adapter->netdev);
4609 /* tell fw we're done with firing cmds */
4610 be_cmd_fw_clean(adapter);
4612 be_stats_cleanup(adapter);
4614 be_ctrl_cleanup(adapter);
4616 pci_disable_pcie_error_reporting(pdev);
4618 pci_release_regions(pdev);
4619 pci_disable_device(pdev);
4621 free_netdev(adapter->netdev);
4624 static int be_get_initial_config(struct be_adapter *adapter)
4628 status = be_cmd_get_cntl_attributes(adapter);
4632 /* Must be a power of 2 or else MODULO will BUG_ON */
4633 adapter->be_get_temp_freq = 64;
4635 if (BEx_chip(adapter)) {
4636 level = be_cmd_get_fw_log_level(adapter);
4637 adapter->msg_enable =
4638 level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4641 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4645 static int lancer_recover_func(struct be_adapter *adapter)
4647 struct device *dev = &adapter->pdev->dev;
4650 status = lancer_test_and_set_rdy_state(adapter);
4654 if (netif_running(adapter->netdev))
4655 be_close(adapter->netdev);
4659 be_clear_all_error(adapter);
4661 status = be_setup(adapter);
4665 if (netif_running(adapter->netdev)) {
4666 status = be_open(adapter->netdev);
4671 dev_err(dev, "Adapter recovery successful\n");
4674 if (status == -EAGAIN)
4675 dev_err(dev, "Waiting for resource provisioning\n");
4677 dev_err(dev, "Adapter recovery failed\n");
4682 static void be_func_recovery_task(struct work_struct *work)
4684 struct be_adapter *adapter =
4685 container_of(work, struct be_adapter, func_recovery_work.work);
4688 be_detect_error(adapter);
4690 if (adapter->hw_error && lancer_chip(adapter)) {
4693 netif_device_detach(adapter->netdev);
4696 status = lancer_recover_func(adapter);
4698 netif_device_attach(adapter->netdev);
4701 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4702 * no need to attempt further recovery.
4704 if (!status || status == -EAGAIN)
4705 schedule_delayed_work(&adapter->func_recovery_work,
4706 msecs_to_jiffies(1000));
4709 static void be_worker(struct work_struct *work)
4711 struct be_adapter *adapter =
4712 container_of(work, struct be_adapter, work.work);
4713 struct be_rx_obj *rxo;
4716 /* when interrupts are not yet enabled, just reap any pending
4717 * mcc completions */
4718 if (!netif_running(adapter->netdev)) {
4720 be_process_mcc(adapter);
4725 if (!adapter->stats_cmd_sent) {
4726 if (lancer_chip(adapter))
4727 lancer_cmd_get_pport_stats(adapter,
4728 &adapter->stats_cmd);
4730 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4733 if (be_physfn(adapter) &&
4734 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4735 be_cmd_get_die_temperature(adapter);
4737 for_all_rx_queues(adapter, rxo, i) {
4738 /* Replenish RX-queues starved due to memory
4739 * allocation failures.
4741 if (rxo->rx_post_starved)
4742 be_post_rx_frags(rxo, GFP_KERNEL);
4745 be_eqd_update(adapter);
4748 adapter->work_counter++;
4749 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4752 /* If any VFs are already enabled don't FLR the PF */
4753 static bool be_reset_required(struct be_adapter *adapter)
4755 return pci_num_vf(adapter->pdev) ? false : true;
4758 static char *mc_name(struct be_adapter *adapter)
4760 char *str = ""; /* default */
4762 switch (adapter->mc_type) {
4788 static inline char *func_name(struct be_adapter *adapter)
4790 return be_physfn(adapter) ? "PF" : "VF";
4793 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4796 struct be_adapter *adapter;
4797 struct net_device *netdev;
4800 status = pci_enable_device(pdev);
4804 status = pci_request_regions(pdev, DRV_NAME);
4807 pci_set_master(pdev);
4809 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4810 if (netdev == NULL) {
4814 adapter = netdev_priv(netdev);
4815 adapter->pdev = pdev;
4816 pci_set_drvdata(pdev, adapter);
4817 adapter->netdev = netdev;
4818 SET_NETDEV_DEV(netdev, &pdev->dev);
4820 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
4822 netdev->features |= NETIF_F_HIGHDMA;
4824 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
4826 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4831 if (be_physfn(adapter)) {
4832 status = pci_enable_pcie_error_reporting(pdev);
4834 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4837 status = be_ctrl_init(adapter);
4841 /* sync up with fw's ready state */
4842 if (be_physfn(adapter)) {
4843 status = be_fw_wait_ready(adapter);
4848 if (be_reset_required(adapter)) {
4849 status = be_cmd_reset_function(adapter);
4853 /* Wait for interrupts to quiesce after an FLR */
4857 /* Allow interrupts for other ULPs running on NIC function */
4858 be_intr_set(adapter, true);
4860 /* tell fw we're ready to fire cmds */
4861 status = be_cmd_fw_init(adapter);
4865 status = be_stats_init(adapter);
4869 status = be_get_initial_config(adapter);
4873 INIT_DELAYED_WORK(&adapter->work, be_worker);
4874 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4875 adapter->rx_fc = adapter->tx_fc = true;
4877 status = be_setup(adapter);
4881 be_netdev_init(netdev);
4882 status = register_netdev(netdev);
4886 be_roce_dev_add(adapter);
4888 schedule_delayed_work(&adapter->func_recovery_work,
4889 msecs_to_jiffies(1000));
4891 be_cmd_query_port_name(adapter, &port_name);
4893 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4894 func_name(adapter), mc_name(adapter), port_name);
4901 be_stats_cleanup(adapter);
4903 be_ctrl_cleanup(adapter);
4905 free_netdev(netdev);
4907 pci_release_regions(pdev);
4909 pci_disable_device(pdev);
4911 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4915 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4917 struct be_adapter *adapter = pci_get_drvdata(pdev);
4918 struct net_device *netdev = adapter->netdev;
4920 if (adapter->wol_en)
4921 be_setup_wol(adapter, true);
4923 be_intr_set(adapter, false);
4924 cancel_delayed_work_sync(&adapter->func_recovery_work);
4926 netif_device_detach(netdev);
4927 if (netif_running(netdev)) {
4934 pci_save_state(pdev);
4935 pci_disable_device(pdev);
4936 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4940 static int be_resume(struct pci_dev *pdev)
4943 struct be_adapter *adapter = pci_get_drvdata(pdev);
4944 struct net_device *netdev = adapter->netdev;
4946 netif_device_detach(netdev);
4948 status = pci_enable_device(pdev);
4952 pci_set_power_state(pdev, PCI_D0);
4953 pci_restore_state(pdev);
4955 status = be_fw_wait_ready(adapter);
4959 be_intr_set(adapter, true);
4960 /* tell fw we're ready to fire cmds */
4961 status = be_cmd_fw_init(adapter);
4966 if (netif_running(netdev)) {
4972 schedule_delayed_work(&adapter->func_recovery_work,
4973 msecs_to_jiffies(1000));
4974 netif_device_attach(netdev);
4976 if (adapter->wol_en)
4977 be_setup_wol(adapter, false);
4983 * An FLR will stop BE from DMAing any data.
4985 static void be_shutdown(struct pci_dev *pdev)
4987 struct be_adapter *adapter = pci_get_drvdata(pdev);
4992 cancel_delayed_work_sync(&adapter->work);
4993 cancel_delayed_work_sync(&adapter->func_recovery_work);
4995 netif_device_detach(adapter->netdev);
4997 be_cmd_reset_function(adapter);
4999 pci_disable_device(pdev);
5002 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
5003 pci_channel_state_t state)
5005 struct be_adapter *adapter = pci_get_drvdata(pdev);
5006 struct net_device *netdev = adapter->netdev;
5008 dev_err(&adapter->pdev->dev, "EEH error detected\n");
5010 if (!adapter->eeh_error) {
5011 adapter->eeh_error = true;
5013 cancel_delayed_work_sync(&adapter->func_recovery_work);
5016 netif_device_detach(netdev);
5017 if (netif_running(netdev))
5024 if (state == pci_channel_io_perm_failure)
5025 return PCI_ERS_RESULT_DISCONNECT;
5027 pci_disable_device(pdev);
5029 /* The error could cause the FW to trigger a flash debug dump.
5030 * Resetting the card while flash dump is in progress
5031 * can cause it not to recover; wait for it to finish.
5032 * Wait only for first function as it is needed only once per
5035 if (pdev->devfn == 0)
5038 return PCI_ERS_RESULT_NEED_RESET;
5041 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
5043 struct be_adapter *adapter = pci_get_drvdata(pdev);
5046 dev_info(&adapter->pdev->dev, "EEH reset\n");
5048 status = pci_enable_device(pdev);
5050 return PCI_ERS_RESULT_DISCONNECT;
5052 pci_set_master(pdev);
5053 pci_set_power_state(pdev, PCI_D0);
5054 pci_restore_state(pdev);
5056 /* Check if card is ok and fw is ready */
5057 dev_info(&adapter->pdev->dev,
5058 "Waiting for FW to be ready after EEH reset\n");
5059 status = be_fw_wait_ready(adapter);
5061 return PCI_ERS_RESULT_DISCONNECT;
5063 pci_cleanup_aer_uncorrect_error_status(pdev);
5064 be_clear_all_error(adapter);
5065 return PCI_ERS_RESULT_RECOVERED;
5068 static void be_eeh_resume(struct pci_dev *pdev)
5071 struct be_adapter *adapter = pci_get_drvdata(pdev);
5072 struct net_device *netdev = adapter->netdev;
5074 dev_info(&adapter->pdev->dev, "EEH resume\n");
5076 pci_save_state(pdev);
5078 status = be_cmd_reset_function(adapter);
5082 /* On some BE3 FW versions, after a HW reset,
5083 * interrupts will remain disabled for each function.
5084 * So, explicitly enable interrupts
5086 be_intr_set(adapter, true);
5088 /* tell fw we're ready to fire cmds */
5089 status = be_cmd_fw_init(adapter);
5093 status = be_setup(adapter);
5097 if (netif_running(netdev)) {
5098 status = be_open(netdev);
5103 schedule_delayed_work(&adapter->func_recovery_work,
5104 msecs_to_jiffies(1000));
5105 netif_device_attach(netdev);
5108 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
5111 static const struct pci_error_handlers be_eeh_handlers = {
5112 .error_detected = be_eeh_err_detected,
5113 .slot_reset = be_eeh_reset,
5114 .resume = be_eeh_resume,
5117 static struct pci_driver be_driver = {
5119 .id_table = be_dev_ids,
5121 .remove = be_remove,
5122 .suspend = be_suspend,
5123 .resume = be_resume,
5124 .shutdown = be_shutdown,
5125 .err_handler = &be_eeh_handlers
5128 static int __init be_init_module(void)
5130 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
5131 rx_frag_size != 2048) {
5132 printk(KERN_WARNING DRV_NAME
5133 " : Module param rx_frag_size must be 2048/4096/8192."
5135 rx_frag_size = 2048;
5138 return pci_register_driver(&be_driver);
5140 module_init(be_init_module);
5142 static void __exit be_exit_module(void)
5144 pci_unregister_driver(&be_driver);
5146 module_exit(be_exit_module);