2 * Copyright (C) 2005 - 2013 Emulex
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Contact Information:
11 * linux-drivers@emulex.com
15 * Costa Mesa, CA 92626
18 #include <linux/prefetch.h>
19 #include <linux/module.h>
22 #include <asm/div64.h>
23 #include <linux/aer.h>
24 #include <linux/if_bridge.h>
25 #include <net/busy_poll.h>
27 MODULE_VERSION(DRV_VER);
28 MODULE_DEVICE_TABLE(pci, be_dev_ids);
29 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
30 MODULE_AUTHOR("Emulex Corporation");
31 MODULE_LICENSE("GPL");
33 static unsigned int num_vfs;
34 module_param(num_vfs, uint, S_IRUGO);
35 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
37 static ushort rx_frag_size = 2048;
38 module_param(rx_frag_size, ushort, S_IRUGO);
39 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
41 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
42 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
43 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
44 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
45 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
46 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
48 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
49 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
52 MODULE_DEVICE_TABLE(pci, be_dev_ids);
53 /* UE Status Low CSR */
54 static const char * const ue_status_low_desc[] = {
88 /* UE Status High CSR */
89 static const char * const ue_status_hi_desc[] = {
124 /* Is BE in a multi-channel mode */
125 static inline bool be_is_mc(struct be_adapter *adapter) {
126 return (adapter->function_mode & FLEX10_MODE ||
127 adapter->function_mode & VNIC_MODE ||
128 adapter->function_mode & UMC_ENABLED);
131 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
133 struct be_dma_mem *mem = &q->dma_mem;
135 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
141 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
142 u16 len, u16 entry_size)
144 struct be_dma_mem *mem = &q->dma_mem;
146 memset(q, 0, sizeof(*q));
148 q->entry_size = entry_size;
149 mem->size = len * entry_size;
150 mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
157 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
161 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
163 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
165 if (!enabled && enable)
166 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
167 else if (enabled && !enable)
168 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
172 pci_write_config_dword(adapter->pdev,
173 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
176 static void be_intr_set(struct be_adapter *adapter, bool enable)
180 /* On lancer interrupts can't be controlled via this register */
181 if (lancer_chip(adapter))
184 if (adapter->eeh_error)
187 status = be_cmd_intr_set(adapter, enable);
189 be_reg_intr_set(adapter, enable);
192 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
195 val |= qid & DB_RQ_RING_ID_MASK;
196 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
199 iowrite32(val, adapter->db + DB_RQ_OFFSET);
202 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
206 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
207 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
210 iowrite32(val, adapter->db + txo->db_offset);
213 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
214 bool arm, bool clear_int, u16 num_popped)
217 val |= qid & DB_EQ_RING_ID_MASK;
218 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
219 DB_EQ_RING_ID_EXT_MASK_SHIFT);
221 if (adapter->eeh_error)
225 val |= 1 << DB_EQ_REARM_SHIFT;
227 val |= 1 << DB_EQ_CLR_SHIFT;
228 val |= 1 << DB_EQ_EVNT_SHIFT;
229 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
230 iowrite32(val, adapter->db + DB_EQ_OFFSET);
233 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
236 val |= qid & DB_CQ_RING_ID_MASK;
237 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
238 DB_CQ_RING_ID_EXT_MASK_SHIFT);
240 if (adapter->eeh_error)
244 val |= 1 << DB_CQ_REARM_SHIFT;
245 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
246 iowrite32(val, adapter->db + DB_CQ_OFFSET);
249 static int be_mac_addr_set(struct net_device *netdev, void *p)
251 struct be_adapter *adapter = netdev_priv(netdev);
252 struct device *dev = &adapter->pdev->dev;
253 struct sockaddr *addr = p;
256 u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0;
258 if (!is_valid_ether_addr(addr->sa_data))
259 return -EADDRNOTAVAIL;
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);
287 /* The MAC change did not happen, either due to lack of privilege
288 * or PF didn't pre-provision.
290 if (memcmp(addr->sa_data, mac, ETH_ALEN)) {
295 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
296 dev_info(dev, "MAC address changed to %pM\n", mac);
299 dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
303 /* BE2 supports only v0 cmd */
304 static void *hw_stats_from_cmd(struct be_adapter *adapter)
306 if (BE2_chip(adapter)) {
307 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
309 return &cmd->hw_stats;
310 } else if (BE3_chip(adapter)) {
311 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
313 return &cmd->hw_stats;
315 struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;
317 return &cmd->hw_stats;
321 /* BE2 supports only v0 cmd */
322 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
324 if (BE2_chip(adapter)) {
325 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
327 return &hw_stats->erx;
328 } else if (BE3_chip(adapter)) {
329 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
331 return &hw_stats->erx;
333 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
335 return &hw_stats->erx;
339 static void populate_be_v0_stats(struct be_adapter *adapter)
341 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
342 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
343 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
344 struct be_port_rxf_stats_v0 *port_stats =
345 &rxf_stats->port[adapter->port_num];
346 struct be_drv_stats *drvs = &adapter->drv_stats;
348 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
349 drvs->rx_pause_frames = port_stats->rx_pause_frames;
350 drvs->rx_crc_errors = port_stats->rx_crc_errors;
351 drvs->rx_control_frames = port_stats->rx_control_frames;
352 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
353 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
354 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
355 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
356 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
357 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
358 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
359 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
360 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
361 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
362 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
363 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
364 drvs->rx_dropped_header_too_small =
365 port_stats->rx_dropped_header_too_small;
366 drvs->rx_address_filtered =
367 port_stats->rx_address_filtered +
368 port_stats->rx_vlan_filtered;
369 drvs->rx_alignment_symbol_errors =
370 port_stats->rx_alignment_symbol_errors;
372 drvs->tx_pauseframes = port_stats->tx_pauseframes;
373 drvs->tx_controlframes = port_stats->tx_controlframes;
375 if (adapter->port_num)
376 drvs->jabber_events = rxf_stats->port1_jabber_events;
378 drvs->jabber_events = rxf_stats->port0_jabber_events;
379 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
380 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
381 drvs->forwarded_packets = rxf_stats->forwarded_packets;
382 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
383 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
384 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
385 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
388 static void populate_be_v1_stats(struct be_adapter *adapter)
390 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
391 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
392 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
393 struct be_port_rxf_stats_v1 *port_stats =
394 &rxf_stats->port[adapter->port_num];
395 struct be_drv_stats *drvs = &adapter->drv_stats;
397 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
398 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
399 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
400 drvs->rx_pause_frames = port_stats->rx_pause_frames;
401 drvs->rx_crc_errors = port_stats->rx_crc_errors;
402 drvs->rx_control_frames = port_stats->rx_control_frames;
403 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
404 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
405 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
406 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
407 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
408 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
409 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
410 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
411 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
412 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
413 drvs->rx_dropped_header_too_small =
414 port_stats->rx_dropped_header_too_small;
415 drvs->rx_input_fifo_overflow_drop =
416 port_stats->rx_input_fifo_overflow_drop;
417 drvs->rx_address_filtered = port_stats->rx_address_filtered;
418 drvs->rx_alignment_symbol_errors =
419 port_stats->rx_alignment_symbol_errors;
420 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
421 drvs->tx_pauseframes = port_stats->tx_pauseframes;
422 drvs->tx_controlframes = port_stats->tx_controlframes;
423 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
424 drvs->jabber_events = port_stats->jabber_events;
425 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
426 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
427 drvs->forwarded_packets = rxf_stats->forwarded_packets;
428 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
429 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
430 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
431 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
434 static void populate_be_v2_stats(struct be_adapter *adapter)
436 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
437 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
438 struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
439 struct be_port_rxf_stats_v2 *port_stats =
440 &rxf_stats->port[adapter->port_num];
441 struct be_drv_stats *drvs = &adapter->drv_stats;
443 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
444 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
445 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
446 drvs->rx_pause_frames = port_stats->rx_pause_frames;
447 drvs->rx_crc_errors = port_stats->rx_crc_errors;
448 drvs->rx_control_frames = port_stats->rx_control_frames;
449 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
450 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
451 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
452 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
453 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
454 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
455 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
456 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
457 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
458 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
459 drvs->rx_dropped_header_too_small =
460 port_stats->rx_dropped_header_too_small;
461 drvs->rx_input_fifo_overflow_drop =
462 port_stats->rx_input_fifo_overflow_drop;
463 drvs->rx_address_filtered = port_stats->rx_address_filtered;
464 drvs->rx_alignment_symbol_errors =
465 port_stats->rx_alignment_symbol_errors;
466 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
467 drvs->tx_pauseframes = port_stats->tx_pauseframes;
468 drvs->tx_controlframes = port_stats->tx_controlframes;
469 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
470 drvs->jabber_events = port_stats->jabber_events;
471 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
472 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
473 drvs->forwarded_packets = rxf_stats->forwarded_packets;
474 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
475 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
476 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
477 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
478 if (be_roce_supported(adapter)) {
479 drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
480 drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
481 drvs->rx_roce_frames = port_stats->roce_frames_received;
482 drvs->roce_drops_crc = port_stats->roce_drops_crc;
483 drvs->roce_drops_payload_len =
484 port_stats->roce_drops_payload_len;
488 static void populate_lancer_stats(struct be_adapter *adapter)
491 struct be_drv_stats *drvs = &adapter->drv_stats;
492 struct lancer_pport_stats *pport_stats =
493 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,
543 if (!BEx_chip(adapter))
544 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
546 /* below erx HW counter can actually wrap around after
547 * 65535. Driver accumulates a 32-bit value
549 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
553 void be_parse_stats(struct be_adapter *adapter)
555 struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
556 struct be_rx_obj *rxo;
560 if (lancer_chip(adapter)) {
561 populate_lancer_stats(adapter);
563 if (BE2_chip(adapter))
564 populate_be_v0_stats(adapter);
565 else if (BE3_chip(adapter))
567 populate_be_v1_stats(adapter);
569 populate_be_v2_stats(adapter);
571 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
572 for_all_rx_queues(adapter, rxo, i) {
573 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
574 populate_erx_stats(adapter, rxo, erx_stat);
579 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
580 struct rtnl_link_stats64 *stats)
582 struct be_adapter *adapter = netdev_priv(netdev);
583 struct be_drv_stats *drvs = &adapter->drv_stats;
584 struct be_rx_obj *rxo;
585 struct be_tx_obj *txo;
590 for_all_rx_queues(adapter, rxo, i) {
591 const struct be_rx_stats *rx_stats = rx_stats(rxo);
593 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
594 pkts = rx_stats(rxo)->rx_pkts;
595 bytes = rx_stats(rxo)->rx_bytes;
596 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
597 stats->rx_packets += pkts;
598 stats->rx_bytes += bytes;
599 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
600 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
601 rx_stats(rxo)->rx_drops_no_frags;
604 for_all_tx_queues(adapter, txo, i) {
605 const struct be_tx_stats *tx_stats = tx_stats(txo);
607 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
608 pkts = tx_stats(txo)->tx_pkts;
609 bytes = tx_stats(txo)->tx_bytes;
610 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
611 stats->tx_packets += pkts;
612 stats->tx_bytes += bytes;
615 /* bad pkts received */
616 stats->rx_errors = drvs->rx_crc_errors +
617 drvs->rx_alignment_symbol_errors +
618 drvs->rx_in_range_errors +
619 drvs->rx_out_range_errors +
620 drvs->rx_frame_too_long +
621 drvs->rx_dropped_too_small +
622 drvs->rx_dropped_too_short +
623 drvs->rx_dropped_header_too_small +
624 drvs->rx_dropped_tcp_length +
625 drvs->rx_dropped_runt;
627 /* detailed rx errors */
628 stats->rx_length_errors = drvs->rx_in_range_errors +
629 drvs->rx_out_range_errors +
630 drvs->rx_frame_too_long;
632 stats->rx_crc_errors = drvs->rx_crc_errors;
634 /* frame alignment errors */
635 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
637 /* receiver fifo overrun */
638 /* drops_no_pbuf is no per i/f, it's per BE card */
639 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
640 drvs->rx_input_fifo_overflow_drop +
641 drvs->rx_drops_no_pbuf;
645 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
647 struct net_device *netdev = adapter->netdev;
649 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
650 netif_carrier_off(netdev);
651 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
654 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
655 netif_carrier_on(netdev);
657 netif_carrier_off(netdev);
660 static void be_tx_stats_update(struct be_tx_obj *txo,
661 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
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 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
721 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
725 memset(hdr, 0, sizeof(*hdr));
727 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
729 if (skb_is_gso(skb)) {
730 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
731 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
732 hdr, skb_shinfo(skb)->gso_size);
733 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
734 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
735 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
737 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
738 else if (is_udp_pkt(skb))
739 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
742 if (vlan_tx_tag_present(skb)) {
743 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
744 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
745 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
748 /* To skip HW VLAN tagging: evt = 1, compl = 0 */
749 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
750 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
751 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
752 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
755 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
760 be_dws_le_to_cpu(wrb, sizeof(*wrb));
762 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
765 dma_unmap_single(dev, dma, wrb->frag_len,
768 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
772 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
773 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
778 struct device *dev = &adapter->pdev->dev;
779 struct sk_buff *first_skb = skb;
780 struct be_eth_wrb *wrb;
781 struct be_eth_hdr_wrb *hdr;
782 bool map_single = false;
785 hdr = queue_head_node(txq);
787 map_head = txq->head;
789 if (skb->len > skb->data_len) {
790 int len = skb_headlen(skb);
791 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
792 if (dma_mapping_error(dev, busaddr))
795 wrb = queue_head_node(txq);
796 wrb_fill(wrb, busaddr, len);
797 be_dws_cpu_to_le(wrb, sizeof(*wrb));
802 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
803 const struct skb_frag_struct *frag =
804 &skb_shinfo(skb)->frags[i];
805 busaddr = skb_frag_dma_map(dev, frag, 0,
806 skb_frag_size(frag), DMA_TO_DEVICE);
807 if (dma_mapping_error(dev, busaddr))
809 wrb = queue_head_node(txq);
810 wrb_fill(wrb, busaddr, skb_frag_size(frag));
811 be_dws_cpu_to_le(wrb, sizeof(*wrb));
813 copied += skb_frag_size(frag);
817 wrb = queue_head_node(txq);
819 be_dws_cpu_to_le(wrb, sizeof(*wrb));
823 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
824 be_dws_cpu_to_le(hdr, sizeof(*hdr));
828 txq->head = map_head;
830 wrb = queue_head_node(txq);
831 unmap_tx_frag(dev, wrb, map_single);
833 copied -= wrb->frag_len;
839 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
845 skb = skb_share_check(skb, GFP_ATOMIC);
849 if (vlan_tx_tag_present(skb))
850 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
852 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
854 vlan_tag = adapter->pvid;
855 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
856 * skip VLAN insertion
859 *skip_hw_vlan = true;
863 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
869 /* Insert the outer VLAN, if any */
870 if (adapter->qnq_vid) {
871 vlan_tag = adapter->qnq_vid;
872 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
876 *skip_hw_vlan = true;
882 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
884 struct ethhdr *eh = (struct ethhdr *)skb->data;
885 u16 offset = ETH_HLEN;
887 if (eh->h_proto == htons(ETH_P_IPV6)) {
888 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
890 offset += sizeof(struct ipv6hdr);
891 if (ip6h->nexthdr != NEXTHDR_TCP &&
892 ip6h->nexthdr != NEXTHDR_UDP) {
893 struct ipv6_opt_hdr *ehdr =
894 (struct ipv6_opt_hdr *) (skb->data + offset);
896 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
897 if (ehdr->hdrlen == 0xff)
904 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
906 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
909 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
912 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
915 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
919 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
920 unsigned int eth_hdr_len;
923 /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less
924 * may cause a transmit stall on that port. So the work-around is to
925 * pad short packets (<= 32 bytes) to a 36-byte length.
927 if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
928 if (skb_padto(skb, 36))
933 /* For padded packets, BE HW modifies tot_len field in IP header
934 * incorrecly when VLAN tag is inserted by HW.
935 * For padded packets, Lancer computes incorrect checksum.
937 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
938 VLAN_ETH_HLEN : ETH_HLEN;
939 if (skb->len <= 60 &&
940 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
942 ip = (struct iphdr *)ip_hdr(skb);
943 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
946 /* If vlan tag is already inlined in the packet, skip HW VLAN
947 * tagging in UMC mode
949 if ((adapter->function_mode & UMC_ENABLED) &&
950 veh->h_vlan_proto == htons(ETH_P_8021Q))
951 *skip_hw_vlan = true;
953 /* HW has a bug wherein it will calculate CSUM for VLAN
954 * pkts even though it is disabled.
955 * Manually insert VLAN in pkt.
957 if (skb->ip_summed != CHECKSUM_PARTIAL &&
958 vlan_tx_tag_present(skb)) {
959 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
964 /* HW may lockup when VLAN HW tagging is requested on
965 * certain ipv6 packets. Drop such pkts if the HW workaround to
966 * skip HW tagging is not enabled by FW.
968 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
969 (adapter->pvid || adapter->qnq_vid) &&
970 !qnq_async_evt_rcvd(adapter)))
973 /* Manual VLAN tag insertion to prevent:
974 * ASIC lockup when the ASIC inserts VLAN tag into
975 * certain ipv6 packets. Insert VLAN tags in driver,
976 * and set event, completion, vlan bits accordingly
979 if (be_ipv6_tx_stall_chk(adapter, skb) &&
980 be_vlan_tag_tx_chk(adapter, skb)) {
981 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
988 dev_kfree_skb_any(skb);
992 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
994 struct be_adapter *adapter = netdev_priv(netdev);
995 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
996 struct be_queue_info *txq = &txo->q;
997 bool dummy_wrb, stopped = false;
998 u32 wrb_cnt = 0, copied = 0;
999 bool skip_hw_vlan = false;
1000 u32 start = txq->head;
1002 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
1004 tx_stats(txo)->tx_drv_drops++;
1005 return NETDEV_TX_OK;
1008 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
1010 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
1013 int gso_segs = skb_shinfo(skb)->gso_segs;
1015 /* record the sent skb in the sent_skb table */
1016 BUG_ON(txo->sent_skb_list[start]);
1017 txo->sent_skb_list[start] = skb;
1019 /* Ensure txq has space for the next skb; Else stop the queue
1020 * *BEFORE* ringing the tx doorbell, so that we serialze the
1021 * tx compls of the current transmit which'll wake up the queue
1023 atomic_add(wrb_cnt, &txq->used);
1024 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
1026 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
1030 be_txq_notify(adapter, txo, wrb_cnt);
1032 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
1035 tx_stats(txo)->tx_drv_drops++;
1036 dev_kfree_skb_any(skb);
1038 return NETDEV_TX_OK;
1041 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1043 struct be_adapter *adapter = netdev_priv(netdev);
1044 if (new_mtu < BE_MIN_MTU ||
1045 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
1046 (ETH_HLEN + ETH_FCS_LEN))) {
1047 dev_info(&adapter->pdev->dev,
1048 "MTU must be between %d and %d bytes\n",
1050 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
1053 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
1054 netdev->mtu, new_mtu);
1055 netdev->mtu = new_mtu;
1060 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1061 * If the user configures more, place BE in vlan promiscuous mode.
1063 static int be_vid_config(struct be_adapter *adapter)
1065 u16 vids[BE_NUM_VLANS_SUPPORTED];
1069 /* No need to further configure vids if in promiscuous mode */
1070 if (adapter->promiscuous)
1073 if (adapter->vlans_added > be_max_vlans(adapter))
1074 goto set_vlan_promisc;
1076 /* Construct VLAN Table to give to HW */
1077 for (i = 0; i < VLAN_N_VID; i++)
1078 if (adapter->vlan_tag[i])
1079 vids[num++] = cpu_to_le16(i);
1081 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1085 /* Set to VLAN promisc mode as setting VLAN filter failed */
1086 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
1087 goto set_vlan_promisc;
1088 dev_err(&adapter->pdev->dev,
1089 "Setting HW VLAN filtering failed.\n");
1091 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1092 /* hw VLAN filtering re-enabled. */
1093 status = be_cmd_rx_filter(adapter,
1094 BE_FLAGS_VLAN_PROMISC, OFF);
1096 dev_info(&adapter->pdev->dev,
1097 "Disabling VLAN Promiscuous mode.\n");
1098 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1099 dev_info(&adapter->pdev->dev,
1100 "Re-Enabling HW VLAN filtering\n");
1108 dev_warn(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
1110 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1112 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1113 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering\n");
1114 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1116 dev_err(&adapter->pdev->dev,
1117 "Failed to enable VLAN Promiscuous mode.\n");
1121 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1123 struct be_adapter *adapter = netdev_priv(netdev);
1127 /* Packets with VID 0 are always received by Lancer by default */
1128 if (lancer_chip(adapter) && vid == 0)
1131 adapter->vlan_tag[vid] = 1;
1132 if (adapter->vlans_added <= (be_max_vlans(adapter) + 1))
1133 status = be_vid_config(adapter);
1136 adapter->vlans_added++;
1138 adapter->vlan_tag[vid] = 0;
1143 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1145 struct be_adapter *adapter = netdev_priv(netdev);
1148 /* Packets with VID 0 are always received by Lancer by default */
1149 if (lancer_chip(adapter) && vid == 0)
1152 adapter->vlan_tag[vid] = 0;
1153 if (adapter->vlans_added <= be_max_vlans(adapter))
1154 status = be_vid_config(adapter);
1157 adapter->vlans_added--;
1159 adapter->vlan_tag[vid] = 1;
1164 static void be_set_rx_mode(struct net_device *netdev)
1166 struct be_adapter *adapter = netdev_priv(netdev);
1169 if (netdev->flags & IFF_PROMISC) {
1170 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1171 adapter->promiscuous = true;
1175 /* BE was previously in promiscuous mode; disable it */
1176 if (adapter->promiscuous) {
1177 adapter->promiscuous = false;
1178 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1180 if (adapter->vlans_added)
1181 be_vid_config(adapter);
1184 /* Enable multicast promisc if num configured exceeds what we support */
1185 if (netdev->flags & IFF_ALLMULTI ||
1186 netdev_mc_count(netdev) > be_max_mc(adapter)) {
1187 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1191 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1192 struct netdev_hw_addr *ha;
1193 int i = 1; /* First slot is claimed by the Primary MAC */
1195 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1196 be_cmd_pmac_del(adapter, adapter->if_handle,
1197 adapter->pmac_id[i], 0);
1200 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1201 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1202 adapter->promiscuous = true;
1206 netdev_for_each_uc_addr(ha, adapter->netdev) {
1207 adapter->uc_macs++; /* First slot is for Primary MAC */
1208 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1210 &adapter->pmac_id[adapter->uc_macs], 0);
1214 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1216 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1218 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1219 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1220 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1226 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1228 struct be_adapter *adapter = netdev_priv(netdev);
1229 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1232 if (!sriov_enabled(adapter))
1235 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1238 if (BEx_chip(adapter)) {
1239 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1242 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1243 &vf_cfg->pmac_id, vf + 1);
1245 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1250 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1253 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1258 static int be_get_vf_config(struct net_device *netdev, int vf,
1259 struct ifla_vf_info *vi)
1261 struct be_adapter *adapter = netdev_priv(netdev);
1262 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1264 if (!sriov_enabled(adapter))
1267 if (vf >= adapter->num_vfs)
1271 vi->tx_rate = vf_cfg->tx_rate;
1272 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1273 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1274 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1279 static int be_set_vf_vlan(struct net_device *netdev,
1280 int vf, u16 vlan, u8 qos)
1282 struct be_adapter *adapter = netdev_priv(netdev);
1283 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1286 if (!sriov_enabled(adapter))
1289 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1293 vlan |= qos << VLAN_PRIO_SHIFT;
1294 if (vf_cfg->vlan_tag != vlan) {
1295 /* If this is new value, program it. Else skip. */
1296 vf_cfg->vlan_tag = vlan;
1297 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1298 vf_cfg->if_handle, 0);
1301 /* Reset Transparent Vlan Tagging. */
1302 vf_cfg->vlan_tag = 0;
1303 vlan = vf_cfg->def_vid;
1304 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1305 vf_cfg->if_handle, 0);
1310 dev_info(&adapter->pdev->dev,
1311 "VLAN %d config on VF %d failed\n", vlan, vf);
1315 static int be_set_vf_tx_rate(struct net_device *netdev,
1318 struct be_adapter *adapter = netdev_priv(netdev);
1321 if (!sriov_enabled(adapter))
1324 if (vf >= adapter->num_vfs)
1327 if (rate < 100 || rate > 10000) {
1328 dev_err(&adapter->pdev->dev,
1329 "tx rate must be between 100 and 10000 Mbps\n");
1333 if (lancer_chip(adapter))
1334 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1336 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1339 dev_err(&adapter->pdev->dev,
1340 "tx rate %d on VF %d failed\n", rate, vf);
1342 adapter->vf_cfg[vf].tx_rate = rate;
1346 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1349 aic->rx_pkts_prev = rx_pkts;
1350 aic->tx_reqs_prev = tx_pkts;
1354 static void be_eqd_update(struct be_adapter *adapter)
1356 struct be_set_eqd set_eqd[MAX_EVT_QS];
1357 int eqd, i, num = 0, start;
1358 struct be_aic_obj *aic;
1359 struct be_eq_obj *eqo;
1360 struct be_rx_obj *rxo;
1361 struct be_tx_obj *txo;
1362 u64 rx_pkts, tx_pkts;
1366 for_all_evt_queues(adapter, eqo, i) {
1367 aic = &adapter->aic_obj[eqo->idx];
1375 rxo = &adapter->rx_obj[eqo->idx];
1377 start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
1378 rx_pkts = rxo->stats.rx_pkts;
1379 } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
1381 txo = &adapter->tx_obj[eqo->idx];
1383 start = u64_stats_fetch_begin_bh(&txo->stats.sync);
1384 tx_pkts = txo->stats.tx_reqs;
1385 } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
1388 /* Skip, if wrapped around or first calculation */
1390 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1391 rx_pkts < aic->rx_pkts_prev ||
1392 tx_pkts < aic->tx_reqs_prev) {
1393 be_aic_update(aic, rx_pkts, tx_pkts, now);
1397 delta = jiffies_to_msecs(now - aic->jiffies);
1398 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1399 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1400 eqd = (pps / 15000) << 2;
1404 eqd = min_t(u32, eqd, aic->max_eqd);
1405 eqd = max_t(u32, eqd, aic->min_eqd);
1407 be_aic_update(aic, rx_pkts, tx_pkts, now);
1409 if (eqd != aic->prev_eqd) {
1410 set_eqd[num].delay_multiplier = (eqd * 65)/100;
1411 set_eqd[num].eq_id = eqo->q.id;
1412 aic->prev_eqd = eqd;
1418 be_cmd_modify_eqd(adapter, set_eqd, num);
1421 static void be_rx_stats_update(struct be_rx_obj *rxo,
1422 struct be_rx_compl_info *rxcp)
1424 struct be_rx_stats *stats = rx_stats(rxo);
1426 u64_stats_update_begin(&stats->sync);
1428 stats->rx_bytes += rxcp->pkt_size;
1430 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1431 stats->rx_mcast_pkts++;
1433 stats->rx_compl_err++;
1434 u64_stats_update_end(&stats->sync);
1437 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1439 /* L4 checksum is not reliable for non TCP/UDP packets.
1440 * Also ignore ipcksm for ipv6 pkts */
1441 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1442 (rxcp->ip_csum || rxcp->ipv6);
1445 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1448 struct be_adapter *adapter = rxo->adapter;
1449 struct be_rx_page_info *rx_page_info;
1450 struct be_queue_info *rxq = &rxo->q;
1452 rx_page_info = &rxo->page_info_tbl[frag_idx];
1453 BUG_ON(!rx_page_info->page);
1455 if (rx_page_info->last_page_user) {
1456 dma_unmap_page(&adapter->pdev->dev,
1457 dma_unmap_addr(rx_page_info, bus),
1458 adapter->big_page_size, DMA_FROM_DEVICE);
1459 rx_page_info->last_page_user = false;
1462 atomic_dec(&rxq->used);
1463 return rx_page_info;
1466 /* Throwaway the data in the Rx completion */
1467 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1468 struct be_rx_compl_info *rxcp)
1470 struct be_queue_info *rxq = &rxo->q;
1471 struct be_rx_page_info *page_info;
1472 u16 i, num_rcvd = rxcp->num_rcvd;
1474 for (i = 0; i < num_rcvd; i++) {
1475 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1476 put_page(page_info->page);
1477 memset(page_info, 0, sizeof(*page_info));
1478 index_inc(&rxcp->rxq_idx, rxq->len);
1483 * skb_fill_rx_data forms a complete skb for an ether frame
1484 * indicated by rxcp.
1486 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1487 struct be_rx_compl_info *rxcp)
1489 struct be_queue_info *rxq = &rxo->q;
1490 struct be_rx_page_info *page_info;
1492 u16 hdr_len, curr_frag_len, remaining;
1495 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1496 start = page_address(page_info->page) + page_info->page_offset;
1499 /* Copy data in the first descriptor of this completion */
1500 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1502 skb->len = curr_frag_len;
1503 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1504 memcpy(skb->data, start, curr_frag_len);
1505 /* Complete packet has now been moved to data */
1506 put_page(page_info->page);
1508 skb->tail += curr_frag_len;
1511 memcpy(skb->data, start, hdr_len);
1512 skb_shinfo(skb)->nr_frags = 1;
1513 skb_frag_set_page(skb, 0, page_info->page);
1514 skb_shinfo(skb)->frags[0].page_offset =
1515 page_info->page_offset + hdr_len;
1516 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1517 skb->data_len = curr_frag_len - hdr_len;
1518 skb->truesize += rx_frag_size;
1519 skb->tail += hdr_len;
1521 page_info->page = NULL;
1523 if (rxcp->pkt_size <= rx_frag_size) {
1524 BUG_ON(rxcp->num_rcvd != 1);
1528 /* More frags present for this completion */
1529 index_inc(&rxcp->rxq_idx, rxq->len);
1530 remaining = rxcp->pkt_size - curr_frag_len;
1531 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1532 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1533 curr_frag_len = min(remaining, rx_frag_size);
1535 /* Coalesce all frags from the same physical page in one slot */
1536 if (page_info->page_offset == 0) {
1539 skb_frag_set_page(skb, j, page_info->page);
1540 skb_shinfo(skb)->frags[j].page_offset =
1541 page_info->page_offset;
1542 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1543 skb_shinfo(skb)->nr_frags++;
1545 put_page(page_info->page);
1548 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1549 skb->len += curr_frag_len;
1550 skb->data_len += curr_frag_len;
1551 skb->truesize += rx_frag_size;
1552 remaining -= curr_frag_len;
1553 index_inc(&rxcp->rxq_idx, rxq->len);
1554 page_info->page = NULL;
1556 BUG_ON(j > MAX_SKB_FRAGS);
1559 /* Process the RX completion indicated by rxcp when GRO is disabled */
1560 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1561 struct be_rx_compl_info *rxcp)
1563 struct be_adapter *adapter = rxo->adapter;
1564 struct net_device *netdev = adapter->netdev;
1565 struct sk_buff *skb;
1567 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1568 if (unlikely(!skb)) {
1569 rx_stats(rxo)->rx_drops_no_skbs++;
1570 be_rx_compl_discard(rxo, rxcp);
1574 skb_fill_rx_data(rxo, skb, rxcp);
1576 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1577 skb->ip_summed = CHECKSUM_UNNECESSARY;
1579 skb_checksum_none_assert(skb);
1581 skb->protocol = eth_type_trans(skb, netdev);
1582 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1583 if (netdev->features & NETIF_F_RXHASH)
1584 skb->rxhash = rxcp->rss_hash;
1585 skb_mark_napi_id(skb, napi);
1588 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1590 netif_receive_skb(skb);
1593 /* Process the RX completion indicated by rxcp when GRO is enabled */
1594 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1595 struct napi_struct *napi,
1596 struct be_rx_compl_info *rxcp)
1598 struct be_adapter *adapter = rxo->adapter;
1599 struct be_rx_page_info *page_info;
1600 struct sk_buff *skb = NULL;
1601 struct be_queue_info *rxq = &rxo->q;
1602 u16 remaining, curr_frag_len;
1605 skb = napi_get_frags(napi);
1607 be_rx_compl_discard(rxo, rxcp);
1611 remaining = rxcp->pkt_size;
1612 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1613 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1615 curr_frag_len = min(remaining, rx_frag_size);
1617 /* Coalesce all frags from the same physical page in one slot */
1618 if (i == 0 || page_info->page_offset == 0) {
1619 /* First frag or Fresh page */
1621 skb_frag_set_page(skb, j, page_info->page);
1622 skb_shinfo(skb)->frags[j].page_offset =
1623 page_info->page_offset;
1624 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1626 put_page(page_info->page);
1628 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1629 skb->truesize += rx_frag_size;
1630 remaining -= curr_frag_len;
1631 index_inc(&rxcp->rxq_idx, rxq->len);
1632 memset(page_info, 0, sizeof(*page_info));
1634 BUG_ON(j > MAX_SKB_FRAGS);
1636 skb_shinfo(skb)->nr_frags = j + 1;
1637 skb->len = rxcp->pkt_size;
1638 skb->data_len = rxcp->pkt_size;
1639 skb->ip_summed = CHECKSUM_UNNECESSARY;
1640 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1641 if (adapter->netdev->features & NETIF_F_RXHASH)
1642 skb->rxhash = rxcp->rss_hash;
1643 skb_mark_napi_id(skb, napi);
1646 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1648 napi_gro_frags(napi);
1651 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1652 struct be_rx_compl_info *rxcp)
1655 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1656 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1657 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1658 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1659 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1661 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1663 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1665 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1667 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1669 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1671 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1673 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1675 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1677 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1680 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1683 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1684 struct be_rx_compl_info *rxcp)
1687 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1688 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1689 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1690 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1691 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1693 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1695 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1697 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1699 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1701 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1703 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1705 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1707 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1709 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1712 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1713 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1717 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1719 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1720 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1721 struct be_adapter *adapter = rxo->adapter;
1723 /* For checking the valid bit it is Ok to use either definition as the
1724 * valid bit is at the same position in both v0 and v1 Rx compl */
1725 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1729 be_dws_le_to_cpu(compl, sizeof(*compl));
1731 if (adapter->be3_native)
1732 be_parse_rx_compl_v1(compl, rxcp);
1734 be_parse_rx_compl_v0(compl, rxcp);
1740 /* vlanf could be wrongly set in some cards.
1741 * ignore if vtm is not set */
1742 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1745 if (!lancer_chip(adapter))
1746 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1748 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1749 !adapter->vlan_tag[rxcp->vlan_tag])
1753 /* As the compl has been parsed, reset it; we wont touch it again */
1754 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1756 queue_tail_inc(&rxo->cq);
1760 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1762 u32 order = get_order(size);
1766 return alloc_pages(gfp, order);
1770 * Allocate a page, split it to fragments of size rx_frag_size and post as
1771 * receive buffers to BE
1773 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1775 struct be_adapter *adapter = rxo->adapter;
1776 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1777 struct be_queue_info *rxq = &rxo->q;
1778 struct page *pagep = NULL;
1779 struct be_eth_rx_d *rxd;
1780 u64 page_dmaaddr = 0, frag_dmaaddr;
1781 u32 posted, page_offset = 0;
1783 page_info = &rxo->page_info_tbl[rxq->head];
1784 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1786 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1787 if (unlikely(!pagep)) {
1788 rx_stats(rxo)->rx_post_fail++;
1791 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1792 0, adapter->big_page_size,
1794 page_info->page_offset = 0;
1797 page_info->page_offset = page_offset + rx_frag_size;
1799 page_offset = page_info->page_offset;
1800 page_info->page = pagep;
1801 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1802 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1804 rxd = queue_head_node(rxq);
1805 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1806 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1808 /* Any space left in the current big page for another frag? */
1809 if ((page_offset + rx_frag_size + rx_frag_size) >
1810 adapter->big_page_size) {
1812 page_info->last_page_user = true;
1815 prev_page_info = page_info;
1816 queue_head_inc(rxq);
1817 page_info = &rxo->page_info_tbl[rxq->head];
1820 prev_page_info->last_page_user = true;
1823 atomic_add(posted, &rxq->used);
1824 if (rxo->rx_post_starved)
1825 rxo->rx_post_starved = false;
1826 be_rxq_notify(adapter, rxq->id, posted);
1827 } else if (atomic_read(&rxq->used) == 0) {
1828 /* Let be_worker replenish when memory is available */
1829 rxo->rx_post_starved = true;
1833 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1835 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1837 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1841 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1843 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1845 queue_tail_inc(tx_cq);
1849 static u16 be_tx_compl_process(struct be_adapter *adapter,
1850 struct be_tx_obj *txo, u16 last_index)
1852 struct be_queue_info *txq = &txo->q;
1853 struct be_eth_wrb *wrb;
1854 struct sk_buff **sent_skbs = txo->sent_skb_list;
1855 struct sk_buff *sent_skb;
1856 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1857 bool unmap_skb_hdr = true;
1859 sent_skb = sent_skbs[txq->tail];
1861 sent_skbs[txq->tail] = NULL;
1863 /* skip header wrb */
1864 queue_tail_inc(txq);
1867 cur_index = txq->tail;
1868 wrb = queue_tail_node(txq);
1869 unmap_tx_frag(&adapter->pdev->dev, wrb,
1870 (unmap_skb_hdr && skb_headlen(sent_skb)));
1871 unmap_skb_hdr = false;
1874 queue_tail_inc(txq);
1875 } while (cur_index != last_index);
1877 kfree_skb(sent_skb);
1881 /* Return the number of events in the event queue */
1882 static inline int events_get(struct be_eq_obj *eqo)
1884 struct be_eq_entry *eqe;
1888 eqe = queue_tail_node(&eqo->q);
1895 queue_tail_inc(&eqo->q);
1901 /* Leaves the EQ is disarmed state */
1902 static void be_eq_clean(struct be_eq_obj *eqo)
1904 int num = events_get(eqo);
1906 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1909 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1911 struct be_rx_page_info *page_info;
1912 struct be_queue_info *rxq = &rxo->q;
1913 struct be_queue_info *rx_cq = &rxo->cq;
1914 struct be_rx_compl_info *rxcp;
1915 struct be_adapter *adapter = rxo->adapter;
1919 /* Consume pending rx completions.
1920 * Wait for the flush completion (identified by zero num_rcvd)
1921 * to arrive. Notify CQ even when there are no more CQ entries
1922 * for HW to flush partially coalesced CQ entries.
1923 * In Lancer, there is no need to wait for flush compl.
1926 rxcp = be_rx_compl_get(rxo);
1928 if (lancer_chip(adapter))
1931 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1932 dev_warn(&adapter->pdev->dev,
1933 "did not receive flush compl\n");
1936 be_cq_notify(adapter, rx_cq->id, true, 0);
1939 be_rx_compl_discard(rxo, rxcp);
1940 be_cq_notify(adapter, rx_cq->id, false, 1);
1941 if (rxcp->num_rcvd == 0)
1946 /* After cleanup, leave the CQ in unarmed state */
1947 be_cq_notify(adapter, rx_cq->id, false, 0);
1949 /* Then free posted rx buffers that were not used */
1950 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1951 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1952 page_info = get_rx_page_info(rxo, tail);
1953 put_page(page_info->page);
1954 memset(page_info, 0, sizeof(*page_info));
1956 BUG_ON(atomic_read(&rxq->used));
1957 rxq->tail = rxq->head = 0;
1960 static void be_tx_compl_clean(struct be_adapter *adapter)
1962 struct be_tx_obj *txo;
1963 struct be_queue_info *txq;
1964 struct be_eth_tx_compl *txcp;
1965 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1966 struct sk_buff *sent_skb;
1968 int i, pending_txqs;
1970 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1972 pending_txqs = adapter->num_tx_qs;
1974 for_all_tx_queues(adapter, txo, i) {
1976 while ((txcp = be_tx_compl_get(&txo->cq))) {
1978 AMAP_GET_BITS(struct amap_eth_tx_compl,
1980 num_wrbs += be_tx_compl_process(adapter, txo,
1985 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1986 atomic_sub(num_wrbs, &txq->used);
1990 if (atomic_read(&txq->used) == 0)
1994 if (pending_txqs == 0 || ++timeo > 200)
2000 for_all_tx_queues(adapter, txo, i) {
2002 if (atomic_read(&txq->used))
2003 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
2004 atomic_read(&txq->used));
2006 /* free posted tx for which compls will never arrive */
2007 while (atomic_read(&txq->used)) {
2008 sent_skb = txo->sent_skb_list[txq->tail];
2009 end_idx = txq->tail;
2010 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2012 index_adv(&end_idx, num_wrbs - 1, txq->len);
2013 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2014 atomic_sub(num_wrbs, &txq->used);
2019 static void be_evt_queues_destroy(struct be_adapter *adapter)
2021 struct be_eq_obj *eqo;
2024 for_all_evt_queues(adapter, eqo, i) {
2025 if (eqo->q.created) {
2027 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2028 napi_hash_del(&eqo->napi);
2029 netif_napi_del(&eqo->napi);
2031 be_queue_free(adapter, &eqo->q);
2035 static int be_evt_queues_create(struct be_adapter *adapter)
2037 struct be_queue_info *eq;
2038 struct be_eq_obj *eqo;
2039 struct be_aic_obj *aic;
2042 adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2043 adapter->cfg_num_qs);
2045 for_all_evt_queues(adapter, eqo, i) {
2046 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2048 napi_hash_add(&eqo->napi);
2049 aic = &adapter->aic_obj[i];
2050 eqo->adapter = adapter;
2051 eqo->tx_budget = BE_TX_BUDGET;
2053 aic->max_eqd = BE_MAX_EQD;
2057 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2058 sizeof(struct be_eq_entry));
2062 rc = be_cmd_eq_create(adapter, eqo);
2069 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2071 struct be_queue_info *q;
2073 q = &adapter->mcc_obj.q;
2075 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2076 be_queue_free(adapter, q);
2078 q = &adapter->mcc_obj.cq;
2080 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2081 be_queue_free(adapter, q);
2084 /* Must be called only after TX qs are created as MCC shares TX EQ */
2085 static int be_mcc_queues_create(struct be_adapter *adapter)
2087 struct be_queue_info *q, *cq;
2089 cq = &adapter->mcc_obj.cq;
2090 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2091 sizeof(struct be_mcc_compl)))
2094 /* Use the default EQ for MCC completions */
2095 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2098 q = &adapter->mcc_obj.q;
2099 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2100 goto mcc_cq_destroy;
2102 if (be_cmd_mccq_create(adapter, q, cq))
2108 be_queue_free(adapter, q);
2110 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2112 be_queue_free(adapter, cq);
2117 static void be_tx_queues_destroy(struct be_adapter *adapter)
2119 struct be_queue_info *q;
2120 struct be_tx_obj *txo;
2123 for_all_tx_queues(adapter, txo, i) {
2126 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2127 be_queue_free(adapter, q);
2131 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2132 be_queue_free(adapter, q);
2136 static int be_tx_qs_create(struct be_adapter *adapter)
2138 struct be_queue_info *cq, *eq;
2139 struct be_tx_obj *txo;
2142 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2144 for_all_tx_queues(adapter, txo, i) {
2146 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2147 sizeof(struct be_eth_tx_compl));
2151 u64_stats_init(&txo->stats.sync);
2152 u64_stats_init(&txo->stats.sync_compl);
2154 /* If num_evt_qs is less than num_tx_qs, then more than
2155 * one txq share an eq
2157 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2158 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2162 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2163 sizeof(struct be_eth_wrb));
2167 status = be_cmd_txq_create(adapter, txo);
2172 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2173 adapter->num_tx_qs);
2177 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2179 struct be_queue_info *q;
2180 struct be_rx_obj *rxo;
2183 for_all_rx_queues(adapter, rxo, i) {
2186 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2187 be_queue_free(adapter, q);
2191 static int be_rx_cqs_create(struct be_adapter *adapter)
2193 struct be_queue_info *eq, *cq;
2194 struct be_rx_obj *rxo;
2197 /* We can create as many RSS rings as there are EQs. */
2198 adapter->num_rx_qs = adapter->num_evt_qs;
2200 /* We'll use RSS only if atleast 2 RSS rings are supported.
2201 * When RSS is used, we'll need a default RXQ for non-IP traffic.
2203 if (adapter->num_rx_qs > 1)
2204 adapter->num_rx_qs++;
2206 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2207 for_all_rx_queues(adapter, rxo, i) {
2208 rxo->adapter = adapter;
2210 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2211 sizeof(struct be_eth_rx_compl));
2215 u64_stats_init(&rxo->stats.sync);
2216 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2217 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2222 dev_info(&adapter->pdev->dev,
2223 "created %d RSS queue(s) and 1 default RX queue\n",
2224 adapter->num_rx_qs - 1);
2228 static irqreturn_t be_intx(int irq, void *dev)
2230 struct be_eq_obj *eqo = dev;
2231 struct be_adapter *adapter = eqo->adapter;
2234 /* IRQ is not expected when NAPI is scheduled as the EQ
2235 * will not be armed.
2236 * But, this can happen on Lancer INTx where it takes
2237 * a while to de-assert INTx or in BE2 where occasionaly
2238 * an interrupt may be raised even when EQ is unarmed.
2239 * If NAPI is already scheduled, then counting & notifying
2240 * events will orphan them.
2242 if (napi_schedule_prep(&eqo->napi)) {
2243 num_evts = events_get(eqo);
2244 __napi_schedule(&eqo->napi);
2246 eqo->spurious_intr = 0;
2248 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2250 /* Return IRQ_HANDLED only for the the first spurious intr
2251 * after a valid intr to stop the kernel from branding
2252 * this irq as a bad one!
2254 if (num_evts || eqo->spurious_intr++ == 0)
2260 static irqreturn_t be_msix(int irq, void *dev)
2262 struct be_eq_obj *eqo = dev;
2264 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2265 napi_schedule(&eqo->napi);
2269 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2271 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2274 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2275 int budget, int polling)
2277 struct be_adapter *adapter = rxo->adapter;
2278 struct be_queue_info *rx_cq = &rxo->cq;
2279 struct be_rx_compl_info *rxcp;
2282 for (work_done = 0; work_done < budget; work_done++) {
2283 rxcp = be_rx_compl_get(rxo);
2287 /* Is it a flush compl that has no data */
2288 if (unlikely(rxcp->num_rcvd == 0))
2291 /* Discard compl with partial DMA Lancer B0 */
2292 if (unlikely(!rxcp->pkt_size)) {
2293 be_rx_compl_discard(rxo, rxcp);
2297 /* On BE drop pkts that arrive due to imperfect filtering in
2298 * promiscuous mode on some skews
2300 if (unlikely(rxcp->port != adapter->port_num &&
2301 !lancer_chip(adapter))) {
2302 be_rx_compl_discard(rxo, rxcp);
2306 /* Don't do gro when we're busy_polling */
2307 if (do_gro(rxcp) && polling != BUSY_POLLING)
2308 be_rx_compl_process_gro(rxo, napi, rxcp);
2310 be_rx_compl_process(rxo, napi, rxcp);
2313 be_rx_stats_update(rxo, rxcp);
2317 be_cq_notify(adapter, rx_cq->id, true, work_done);
2319 /* When an rx-obj gets into post_starved state, just
2320 * let be_worker do the posting.
2322 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2323 !rxo->rx_post_starved)
2324 be_post_rx_frags(rxo, GFP_ATOMIC);
2330 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2331 int budget, int idx)
2333 struct be_eth_tx_compl *txcp;
2334 int num_wrbs = 0, work_done;
2336 for (work_done = 0; work_done < budget; work_done++) {
2337 txcp = be_tx_compl_get(&txo->cq);
2340 num_wrbs += be_tx_compl_process(adapter, txo,
2341 AMAP_GET_BITS(struct amap_eth_tx_compl,
2346 be_cq_notify(adapter, txo->cq.id, true, work_done);
2347 atomic_sub(num_wrbs, &txo->q.used);
2349 /* As Tx wrbs have been freed up, wake up netdev queue
2350 * if it was stopped due to lack of tx wrbs. */
2351 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2352 atomic_read(&txo->q.used) < txo->q.len / 2) {
2353 netif_wake_subqueue(adapter->netdev, idx);
2356 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2357 tx_stats(txo)->tx_compl += work_done;
2358 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2360 return (work_done < budget); /* Done */
2363 int be_poll(struct napi_struct *napi, int budget)
2365 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2366 struct be_adapter *adapter = eqo->adapter;
2367 int max_work = 0, work, i, num_evts;
2368 struct be_rx_obj *rxo;
2371 num_evts = events_get(eqo);
2373 /* Process all TXQs serviced by this EQ */
2374 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2375 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2381 if (be_lock_napi(eqo)) {
2382 /* This loop will iterate twice for EQ0 in which
2383 * completions of the last RXQ (default one) are also processed
2384 * For other EQs the loop iterates only once
2386 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2387 work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2388 max_work = max(work, max_work);
2390 be_unlock_napi(eqo);
2395 if (is_mcc_eqo(eqo))
2396 be_process_mcc(adapter);
2398 if (max_work < budget) {
2399 napi_complete(napi);
2400 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2402 /* As we'll continue in polling mode, count and clear events */
2403 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2408 #ifdef CONFIG_NET_RX_BUSY_POLL
2409 static int be_busy_poll(struct napi_struct *napi)
2411 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2412 struct be_adapter *adapter = eqo->adapter;
2413 struct be_rx_obj *rxo;
2416 if (!be_lock_busy_poll(eqo))
2417 return LL_FLUSH_BUSY;
2419 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2420 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2425 be_unlock_busy_poll(eqo);
2430 void be_detect_error(struct be_adapter *adapter)
2432 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2433 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2436 if (be_hw_error(adapter))
2439 if (lancer_chip(adapter)) {
2440 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2441 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2442 sliport_err1 = ioread32(adapter->db +
2443 SLIPORT_ERROR1_OFFSET);
2444 sliport_err2 = ioread32(adapter->db +
2445 SLIPORT_ERROR2_OFFSET);
2448 pci_read_config_dword(adapter->pdev,
2449 PCICFG_UE_STATUS_LOW, &ue_lo);
2450 pci_read_config_dword(adapter->pdev,
2451 PCICFG_UE_STATUS_HIGH, &ue_hi);
2452 pci_read_config_dword(adapter->pdev,
2453 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2454 pci_read_config_dword(adapter->pdev,
2455 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2457 ue_lo = (ue_lo & ~ue_lo_mask);
2458 ue_hi = (ue_hi & ~ue_hi_mask);
2461 /* On certain platforms BE hardware can indicate spurious UEs.
2462 * Allow the h/w to stop working completely in case of a real UE.
2463 * Hence not setting the hw_error for UE detection.
2465 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2466 adapter->hw_error = true;
2467 dev_err(&adapter->pdev->dev,
2468 "Error detected in the card\n");
2471 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2472 dev_err(&adapter->pdev->dev,
2473 "ERR: sliport status 0x%x\n", sliport_status);
2474 dev_err(&adapter->pdev->dev,
2475 "ERR: sliport error1 0x%x\n", sliport_err1);
2476 dev_err(&adapter->pdev->dev,
2477 "ERR: sliport error2 0x%x\n", sliport_err2);
2481 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2483 dev_err(&adapter->pdev->dev,
2484 "UE: %s bit set\n", ue_status_low_desc[i]);
2489 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2491 dev_err(&adapter->pdev->dev,
2492 "UE: %s bit set\n", ue_status_hi_desc[i]);
2498 static void be_msix_disable(struct be_adapter *adapter)
2500 if (msix_enabled(adapter)) {
2501 pci_disable_msix(adapter->pdev);
2502 adapter->num_msix_vec = 0;
2503 adapter->num_msix_roce_vec = 0;
2507 static int be_msix_enable(struct be_adapter *adapter)
2509 int i, status, num_vec;
2510 struct device *dev = &adapter->pdev->dev;
2512 /* If RoCE is supported, program the max number of NIC vectors that
2513 * may be configured via set-channels, along with vectors needed for
2514 * RoCe. Else, just program the number we'll use initially.
2516 if (be_roce_supported(adapter))
2517 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2518 2 * num_online_cpus());
2520 num_vec = adapter->cfg_num_qs;
2522 for (i = 0; i < num_vec; i++)
2523 adapter->msix_entries[i].entry = i;
2525 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2528 } else if (status >= MIN_MSIX_VECTORS) {
2530 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2536 dev_warn(dev, "MSIx enable failed\n");
2538 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2539 if (!be_physfn(adapter))
2543 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2544 adapter->num_msix_roce_vec = num_vec / 2;
2545 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2546 adapter->num_msix_roce_vec);
2549 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2551 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2552 adapter->num_msix_vec);
2556 static inline int be_msix_vec_get(struct be_adapter *adapter,
2557 struct be_eq_obj *eqo)
2559 return adapter->msix_entries[eqo->msix_idx].vector;
2562 static int be_msix_register(struct be_adapter *adapter)
2564 struct net_device *netdev = adapter->netdev;
2565 struct be_eq_obj *eqo;
2568 for_all_evt_queues(adapter, eqo, i) {
2569 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2570 vec = be_msix_vec_get(adapter, eqo);
2571 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2578 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2579 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2580 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2582 be_msix_disable(adapter);
2586 static int be_irq_register(struct be_adapter *adapter)
2588 struct net_device *netdev = adapter->netdev;
2591 if (msix_enabled(adapter)) {
2592 status = be_msix_register(adapter);
2595 /* INTx is not supported for VF */
2596 if (!be_physfn(adapter))
2600 /* INTx: only the first EQ is used */
2601 netdev->irq = adapter->pdev->irq;
2602 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2603 &adapter->eq_obj[0]);
2605 dev_err(&adapter->pdev->dev,
2606 "INTx request IRQ failed - err %d\n", status);
2610 adapter->isr_registered = true;
2614 static void be_irq_unregister(struct be_adapter *adapter)
2616 struct net_device *netdev = adapter->netdev;
2617 struct be_eq_obj *eqo;
2620 if (!adapter->isr_registered)
2624 if (!msix_enabled(adapter)) {
2625 free_irq(netdev->irq, &adapter->eq_obj[0]);
2630 for_all_evt_queues(adapter, eqo, i)
2631 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2634 adapter->isr_registered = false;
2637 static void be_rx_qs_destroy(struct be_adapter *adapter)
2639 struct be_queue_info *q;
2640 struct be_rx_obj *rxo;
2643 for_all_rx_queues(adapter, rxo, i) {
2646 be_cmd_rxq_destroy(adapter, q);
2647 be_rx_cq_clean(rxo);
2649 be_queue_free(adapter, q);
2653 static int be_close(struct net_device *netdev)
2655 struct be_adapter *adapter = netdev_priv(netdev);
2656 struct be_eq_obj *eqo;
2659 be_roce_dev_close(adapter);
2661 for_all_evt_queues(adapter, eqo, i) {
2662 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2663 napi_disable(&eqo->napi);
2664 be_disable_busy_poll(eqo);
2666 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2669 be_async_mcc_disable(adapter);
2671 /* Wait for all pending tx completions to arrive so that
2672 * all tx skbs are freed.
2674 netif_tx_disable(netdev);
2675 be_tx_compl_clean(adapter);
2677 be_rx_qs_destroy(adapter);
2679 for (i = 1; i < (adapter->uc_macs + 1); i++)
2680 be_cmd_pmac_del(adapter, adapter->if_handle,
2681 adapter->pmac_id[i], 0);
2682 adapter->uc_macs = 0;
2684 for_all_evt_queues(adapter, eqo, i) {
2685 if (msix_enabled(adapter))
2686 synchronize_irq(be_msix_vec_get(adapter, eqo));
2688 synchronize_irq(netdev->irq);
2692 be_irq_unregister(adapter);
2697 static int be_rx_qs_create(struct be_adapter *adapter)
2699 struct be_rx_obj *rxo;
2703 for_all_rx_queues(adapter, rxo, i) {
2704 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2705 sizeof(struct be_eth_rx_d));
2710 /* The FW would like the default RXQ to be created first */
2711 rxo = default_rxo(adapter);
2712 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2713 adapter->if_handle, false, &rxo->rss_id);
2717 for_all_rss_queues(adapter, rxo, i) {
2718 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2719 rx_frag_size, adapter->if_handle,
2720 true, &rxo->rss_id);
2725 if (be_multi_rxq(adapter)) {
2726 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2727 for_all_rss_queues(adapter, rxo, i) {
2730 rsstable[j + i] = rxo->rss_id;
2733 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2734 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2736 if (!BEx_chip(adapter))
2737 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2738 RSS_ENABLE_UDP_IPV6;
2740 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2743 adapter->rss_flags = 0;
2748 /* First time posting */
2749 for_all_rx_queues(adapter, rxo, i)
2750 be_post_rx_frags(rxo, GFP_KERNEL);
2754 static int be_open(struct net_device *netdev)
2756 struct be_adapter *adapter = netdev_priv(netdev);
2757 struct be_eq_obj *eqo;
2758 struct be_rx_obj *rxo;
2759 struct be_tx_obj *txo;
2763 status = be_rx_qs_create(adapter);
2767 status = be_irq_register(adapter);
2771 for_all_rx_queues(adapter, rxo, i)
2772 be_cq_notify(adapter, rxo->cq.id, true, 0);
2774 for_all_tx_queues(adapter, txo, i)
2775 be_cq_notify(adapter, txo->cq.id, true, 0);
2777 be_async_mcc_enable(adapter);
2779 for_all_evt_queues(adapter, eqo, i) {
2780 napi_enable(&eqo->napi);
2781 be_enable_busy_poll(eqo);
2782 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2784 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2786 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2788 be_link_status_update(adapter, link_status);
2790 netif_tx_start_all_queues(netdev);
2791 be_roce_dev_open(adapter);
2794 be_close(adapter->netdev);
2798 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2800 struct be_dma_mem cmd;
2804 memset(mac, 0, ETH_ALEN);
2806 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2807 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2813 status = pci_write_config_dword(adapter->pdev,
2814 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2816 dev_err(&adapter->pdev->dev,
2817 "Could not enable Wake-on-lan\n");
2818 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2822 status = be_cmd_enable_magic_wol(adapter,
2823 adapter->netdev->dev_addr, &cmd);
2824 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2825 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2827 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2828 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2829 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2832 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2837 * Generate a seed MAC address from the PF MAC Address using jhash.
2838 * MAC Address for VFs are assigned incrementally starting from the seed.
2839 * These addresses are programmed in the ASIC by the PF and the VF driver
2840 * queries for the MAC address during its probe.
2842 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2847 struct be_vf_cfg *vf_cfg;
2849 be_vf_eth_addr_generate(adapter, mac);
2851 for_all_vfs(adapter, vf_cfg, vf) {
2852 if (BEx_chip(adapter))
2853 status = be_cmd_pmac_add(adapter, mac,
2855 &vf_cfg->pmac_id, vf + 1);
2857 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2861 dev_err(&adapter->pdev->dev,
2862 "Mac address assignment failed for VF %d\n", vf);
2864 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2871 static int be_vfs_mac_query(struct be_adapter *adapter)
2875 struct be_vf_cfg *vf_cfg;
2876 bool active = false;
2878 for_all_vfs(adapter, vf_cfg, vf) {
2879 be_cmd_get_mac_from_list(adapter, mac, &active,
2880 &vf_cfg->pmac_id, 0);
2882 status = be_cmd_mac_addr_query(adapter, mac, false,
2883 vf_cfg->if_handle, 0);
2886 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2891 static void be_vf_clear(struct be_adapter *adapter)
2893 struct be_vf_cfg *vf_cfg;
2896 if (pci_vfs_assigned(adapter->pdev)) {
2897 dev_warn(&adapter->pdev->dev,
2898 "VFs are assigned to VMs: not disabling VFs\n");
2902 pci_disable_sriov(adapter->pdev);
2904 for_all_vfs(adapter, vf_cfg, vf) {
2905 if (BEx_chip(adapter))
2906 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2907 vf_cfg->pmac_id, vf + 1);
2909 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2912 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2915 kfree(adapter->vf_cfg);
2916 adapter->num_vfs = 0;
2919 static void be_clear_queues(struct be_adapter *adapter)
2921 be_mcc_queues_destroy(adapter);
2922 be_rx_cqs_destroy(adapter);
2923 be_tx_queues_destroy(adapter);
2924 be_evt_queues_destroy(adapter);
2927 static void be_cancel_worker(struct be_adapter *adapter)
2929 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2930 cancel_delayed_work_sync(&adapter->work);
2931 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2935 static int be_clear(struct be_adapter *adapter)
2939 be_cancel_worker(adapter);
2941 if (sriov_enabled(adapter))
2942 be_vf_clear(adapter);
2944 /* delete the primary mac along with the uc-mac list */
2945 for (i = 0; i < (adapter->uc_macs + 1); i++)
2946 be_cmd_pmac_del(adapter, adapter->if_handle,
2947 adapter->pmac_id[i], 0);
2948 adapter->uc_macs = 0;
2950 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2952 be_clear_queues(adapter);
2954 kfree(adapter->pmac_id);
2955 adapter->pmac_id = NULL;
2957 be_msix_disable(adapter);
2961 static int be_vfs_if_create(struct be_adapter *adapter)
2963 struct be_resources res = {0};
2964 struct be_vf_cfg *vf_cfg;
2965 u32 cap_flags, en_flags, vf;
2968 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2969 BE_IF_FLAGS_MULTICAST;
2971 for_all_vfs(adapter, vf_cfg, vf) {
2972 if (!BE3_chip(adapter)) {
2973 status = be_cmd_get_profile_config(adapter, &res,
2976 cap_flags = res.if_cap_flags;
2979 /* If a FW profile exists, then cap_flags are updated */
2980 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2981 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2982 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2983 &vf_cfg->if_handle, vf + 1);
2991 static int be_vf_setup_init(struct be_adapter *adapter)
2993 struct be_vf_cfg *vf_cfg;
2996 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2998 if (!adapter->vf_cfg)
3001 for_all_vfs(adapter, vf_cfg, vf) {
3002 vf_cfg->if_handle = -1;
3003 vf_cfg->pmac_id = -1;
3008 static int be_vf_setup(struct be_adapter *adapter)
3010 struct be_vf_cfg *vf_cfg;
3011 u16 def_vlan, lnk_speed;
3012 int status, old_vfs, vf;
3013 struct device *dev = &adapter->pdev->dev;
3016 old_vfs = pci_num_vf(adapter->pdev);
3018 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3019 if (old_vfs != num_vfs)
3020 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3021 adapter->num_vfs = old_vfs;
3023 if (num_vfs > be_max_vfs(adapter))
3024 dev_info(dev, "Device supports %d VFs and not %d\n",
3025 be_max_vfs(adapter), num_vfs);
3026 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3027 if (!adapter->num_vfs)
3031 status = be_vf_setup_init(adapter);
3036 for_all_vfs(adapter, vf_cfg, vf) {
3037 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3042 status = be_vfs_if_create(adapter);
3048 status = be_vfs_mac_query(adapter);
3052 status = be_vf_eth_addr_config(adapter);
3057 for_all_vfs(adapter, vf_cfg, vf) {
3058 /* Allow VFs to programs MAC/VLAN filters */
3059 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3060 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3061 status = be_cmd_set_fn_privileges(adapter,
3066 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3070 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
3071 * Allow full available bandwidth
3073 if (BE3_chip(adapter) && !old_vfs)
3074 be_cmd_set_qos(adapter, 1000, vf+1);
3076 status = be_cmd_link_status_query(adapter, &lnk_speed,
3079 vf_cfg->tx_rate = lnk_speed;
3081 status = be_cmd_get_hsw_config(adapter, &def_vlan,
3082 vf + 1, vf_cfg->if_handle, NULL);
3085 vf_cfg->def_vid = def_vlan;
3088 be_cmd_enable_vf(adapter, vf + 1);
3092 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3094 dev_err(dev, "SRIOV enable failed\n");
3095 adapter->num_vfs = 0;
3101 dev_err(dev, "VF setup failed\n");
3102 be_vf_clear(adapter);
3106 /* On BE2/BE3 FW does not suggest the supported limits */
3107 static void BEx_get_resources(struct be_adapter *adapter,
3108 struct be_resources *res)
3110 struct pci_dev *pdev = adapter->pdev;
3111 bool use_sriov = false;
3113 if (BE3_chip(adapter) && sriov_want(adapter)) {
3116 max_vfs = pci_sriov_get_totalvfs(pdev);
3117 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3118 use_sriov = res->max_vfs;
3121 if (be_physfn(adapter))
3122 res->max_uc_mac = BE_UC_PMAC_COUNT;
3124 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3126 if (adapter->function_mode & FLEX10_MODE)
3127 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3128 else if (adapter->function_mode & UMC_ENABLED)
3129 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
3131 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3132 res->max_mcast_mac = BE_MAX_MC;
3134 /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
3135 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
3136 !be_physfn(adapter) || (adapter->port_num > 1))
3139 res->max_tx_qs = BE3_MAX_TX_QS;
3141 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3142 !use_sriov && be_physfn(adapter))
3143 res->max_rss_qs = (adapter->be3_native) ?
3144 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3145 res->max_rx_qs = res->max_rss_qs + 1;
3147 res->max_evt_qs = be_physfn(adapter) ? BE3_MAX_EVT_QS : 1;
3149 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3150 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3151 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3154 static void be_setup_init(struct be_adapter *adapter)
3156 adapter->vlan_prio_bmap = 0xff;
3157 adapter->phy.link_speed = -1;
3158 adapter->if_handle = -1;
3159 adapter->be3_native = false;
3160 adapter->promiscuous = false;
3161 if (be_physfn(adapter))
3162 adapter->cmd_privileges = MAX_PRIVILEGES;
3164 adapter->cmd_privileges = MIN_PRIVILEGES;
3167 static int be_get_resources(struct be_adapter *adapter)
3169 struct device *dev = &adapter->pdev->dev;
3170 struct be_resources res = {0};
3173 if (BEx_chip(adapter)) {
3174 BEx_get_resources(adapter, &res);
3178 /* For Lancer, SH etc read per-function resource limits from FW.
3179 * GET_FUNC_CONFIG returns per function guaranteed limits.
3180 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3182 if (!BEx_chip(adapter)) {
3183 status = be_cmd_get_func_config(adapter, &res);
3187 /* If RoCE may be enabled stash away half the EQs for RoCE */
3188 if (be_roce_supported(adapter))
3189 res.max_evt_qs /= 2;
3192 if (be_physfn(adapter)) {
3193 status = be_cmd_get_profile_config(adapter, &res, 0);
3196 adapter->res.max_vfs = res.max_vfs;
3199 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3200 be_max_txqs(adapter), be_max_rxqs(adapter),
3201 be_max_rss(adapter), be_max_eqs(adapter),
3202 be_max_vfs(adapter));
3203 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3204 be_max_uc(adapter), be_max_mc(adapter),
3205 be_max_vlans(adapter));
3211 /* Routine to query per function resource limits */
3212 static int be_get_config(struct be_adapter *adapter)
3216 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3217 &adapter->function_mode,
3218 &adapter->function_caps,
3219 &adapter->asic_rev);
3223 status = be_get_resources(adapter);
3227 /* primary mac needs 1 pmac entry */
3228 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3230 if (!adapter->pmac_id)
3233 /* Sanitize cfg_num_qs based on HW and platform limits */
3234 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3239 static int be_mac_setup(struct be_adapter *adapter)
3244 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3245 status = be_cmd_get_perm_mac(adapter, mac);
3249 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3250 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3252 /* Maybe the HW was reset; dev_addr must be re-programmed */
3253 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3256 /* On BE3 VFs this cmd may fail due to lack of privilege.
3257 * Ignore the failure as in this case pmac_id is fetched
3258 * in the IFACE_CREATE cmd.
3260 be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3261 &adapter->pmac_id[0], 0);
3265 static void be_schedule_worker(struct be_adapter *adapter)
3267 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3268 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3271 static int be_setup_queues(struct be_adapter *adapter)
3273 struct net_device *netdev = adapter->netdev;
3276 status = be_evt_queues_create(adapter);
3280 status = be_tx_qs_create(adapter);
3284 status = be_rx_cqs_create(adapter);
3288 status = be_mcc_queues_create(adapter);
3292 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3296 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3302 dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3306 int be_update_queues(struct be_adapter *adapter)
3308 struct net_device *netdev = adapter->netdev;
3311 if (netif_running(netdev))
3314 be_cancel_worker(adapter);
3316 /* If any vectors have been shared with RoCE we cannot re-program
3319 if (!adapter->num_msix_roce_vec)
3320 be_msix_disable(adapter);
3322 be_clear_queues(adapter);
3324 if (!msix_enabled(adapter)) {
3325 status = be_msix_enable(adapter);
3330 status = be_setup_queues(adapter);
3334 be_schedule_worker(adapter);
3336 if (netif_running(netdev))
3337 status = be_open(netdev);
3342 static int be_setup(struct be_adapter *adapter)
3344 struct device *dev = &adapter->pdev->dev;
3345 u32 tx_fc, rx_fc, en_flags;
3348 be_setup_init(adapter);
3350 if (!lancer_chip(adapter))
3351 be_cmd_req_native_mode(adapter);
3353 status = be_get_config(adapter);
3357 status = be_msix_enable(adapter);
3361 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3362 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3363 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3364 en_flags |= BE_IF_FLAGS_RSS;
3365 en_flags = en_flags & be_if_cap_flags(adapter);
3366 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3367 &adapter->if_handle, 0);
3371 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3373 status = be_setup_queues(adapter);
3378 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3379 /* In UMC mode FW does not return right privileges.
3380 * Override with correct privilege equivalent to PF.
3382 if (be_is_mc(adapter))
3383 adapter->cmd_privileges = MAX_PRIVILEGES;
3385 status = be_mac_setup(adapter);
3389 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3391 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
3392 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
3394 dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
3397 if (adapter->vlans_added)
3398 be_vid_config(adapter);
3400 be_set_rx_mode(adapter->netdev);
3402 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3404 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3405 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3408 if (sriov_want(adapter)) {
3409 if (be_max_vfs(adapter))
3410 be_vf_setup(adapter);
3412 dev_warn(dev, "device doesn't support SRIOV\n");
3415 status = be_cmd_get_phy_info(adapter);
3416 if (!status && be_pause_supported(adapter))
3417 adapter->phy.fc_autoneg = 1;
3419 be_schedule_worker(adapter);
3426 #ifdef CONFIG_NET_POLL_CONTROLLER
3427 static void be_netpoll(struct net_device *netdev)
3429 struct be_adapter *adapter = netdev_priv(netdev);
3430 struct be_eq_obj *eqo;
3433 for_all_evt_queues(adapter, eqo, i) {
3434 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3435 napi_schedule(&eqo->napi);
3442 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3443 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3445 static bool be_flash_redboot(struct be_adapter *adapter,
3446 const u8 *p, u32 img_start, int image_size,
3453 crc_offset = hdr_size + img_start + image_size - 4;
3457 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3460 dev_err(&adapter->pdev->dev,
3461 "could not get crc from flash, not flashing redboot\n");
3465 /*update redboot only if crc does not match*/
3466 if (!memcmp(flashed_crc, p, 4))
3472 static bool phy_flashing_required(struct be_adapter *adapter)
3474 return (adapter->phy.phy_type == TN_8022 &&
3475 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3478 static bool is_comp_in_ufi(struct be_adapter *adapter,
3479 struct flash_section_info *fsec, int type)
3481 int i = 0, img_type = 0;
3482 struct flash_section_info_g2 *fsec_g2 = NULL;
3484 if (BE2_chip(adapter))
3485 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3487 for (i = 0; i < MAX_FLASH_COMP; i++) {
3489 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3491 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3493 if (img_type == type)
3500 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3502 const struct firmware *fw)
3504 struct flash_section_info *fsec = NULL;
3505 const u8 *p = fw->data;
3508 while (p < (fw->data + fw->size)) {
3509 fsec = (struct flash_section_info *)p;
3510 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3517 static int be_flash(struct be_adapter *adapter, const u8 *img,
3518 struct be_dma_mem *flash_cmd, int optype, int img_size)
3520 u32 total_bytes = 0, flash_op, num_bytes = 0;
3522 struct be_cmd_write_flashrom *req = flash_cmd->va;
3524 total_bytes = img_size;
3525 while (total_bytes) {
3526 num_bytes = min_t(u32, 32*1024, total_bytes);
3528 total_bytes -= num_bytes;
3531 if (optype == OPTYPE_PHY_FW)
3532 flash_op = FLASHROM_OPER_PHY_FLASH;
3534 flash_op = FLASHROM_OPER_FLASH;
3536 if (optype == OPTYPE_PHY_FW)
3537 flash_op = FLASHROM_OPER_PHY_SAVE;
3539 flash_op = FLASHROM_OPER_SAVE;
3542 memcpy(req->data_buf, img, num_bytes);
3544 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3545 flash_op, num_bytes);
3547 if (status == ILLEGAL_IOCTL_REQ &&
3548 optype == OPTYPE_PHY_FW)
3550 dev_err(&adapter->pdev->dev,
3551 "cmd to write to flash rom failed.\n");
3558 /* For BE2, BE3 and BE3-R */
3559 static int be_flash_BEx(struct be_adapter *adapter,
3560 const struct firmware *fw,
3561 struct be_dma_mem *flash_cmd,
3565 int status = 0, i, filehdr_size = 0;
3566 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3567 const u8 *p = fw->data;
3568 const struct flash_comp *pflashcomp;
3569 int num_comp, redboot;
3570 struct flash_section_info *fsec = NULL;
3572 struct flash_comp gen3_flash_types[] = {
3573 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3574 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3575 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3576 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3577 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3578 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3579 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3580 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3581 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3582 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3583 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3584 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3585 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3586 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3587 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3588 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3589 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3590 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3591 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3592 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3595 struct flash_comp gen2_flash_types[] = {
3596 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3597 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3598 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3599 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3600 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3601 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3602 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3603 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3604 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3605 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3606 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3607 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3608 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3609 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3610 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3611 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3614 if (BE3_chip(adapter)) {
3615 pflashcomp = gen3_flash_types;
3616 filehdr_size = sizeof(struct flash_file_hdr_g3);
3617 num_comp = ARRAY_SIZE(gen3_flash_types);
3619 pflashcomp = gen2_flash_types;
3620 filehdr_size = sizeof(struct flash_file_hdr_g2);
3621 num_comp = ARRAY_SIZE(gen2_flash_types);
3624 /* Get flash section info*/
3625 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3627 dev_err(&adapter->pdev->dev,
3628 "Invalid Cookie. UFI corrupted ?\n");
3631 for (i = 0; i < num_comp; i++) {
3632 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3635 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3636 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3639 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3640 !phy_flashing_required(adapter))
3643 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3644 redboot = be_flash_redboot(adapter, fw->data,
3645 pflashcomp[i].offset, pflashcomp[i].size,
3646 filehdr_size + img_hdrs_size);
3652 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3653 if (p + pflashcomp[i].size > fw->data + fw->size)
3656 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3657 pflashcomp[i].size);
3659 dev_err(&adapter->pdev->dev,
3660 "Flashing section type %d failed.\n",
3661 pflashcomp[i].img_type);
3668 static int be_flash_skyhawk(struct be_adapter *adapter,
3669 const struct firmware *fw,
3670 struct be_dma_mem *flash_cmd, int num_of_images)
3672 int status = 0, i, filehdr_size = 0;
3673 int img_offset, img_size, img_optype, redboot;
3674 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3675 const u8 *p = fw->data;
3676 struct flash_section_info *fsec = NULL;
3678 filehdr_size = sizeof(struct flash_file_hdr_g3);
3679 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3681 dev_err(&adapter->pdev->dev,
3682 "Invalid Cookie. UFI corrupted ?\n");
3686 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3687 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3688 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3690 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3691 case IMAGE_FIRMWARE_iSCSI:
3692 img_optype = OPTYPE_ISCSI_ACTIVE;
3694 case IMAGE_BOOT_CODE:
3695 img_optype = OPTYPE_REDBOOT;
3697 case IMAGE_OPTION_ROM_ISCSI:
3698 img_optype = OPTYPE_BIOS;
3700 case IMAGE_OPTION_ROM_PXE:
3701 img_optype = OPTYPE_PXE_BIOS;
3703 case IMAGE_OPTION_ROM_FCoE:
3704 img_optype = OPTYPE_FCOE_BIOS;
3706 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3707 img_optype = OPTYPE_ISCSI_BACKUP;
3710 img_optype = OPTYPE_NCSI_FW;
3716 if (img_optype == OPTYPE_REDBOOT) {
3717 redboot = be_flash_redboot(adapter, fw->data,
3718 img_offset, img_size,
3719 filehdr_size + img_hdrs_size);
3725 p += filehdr_size + img_offset + img_hdrs_size;
3726 if (p + img_size > fw->data + fw->size)
3729 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3731 dev_err(&adapter->pdev->dev,
3732 "Flashing section type %d failed.\n",
3733 fsec->fsec_entry[i].type);
3740 static int lancer_fw_download(struct be_adapter *adapter,
3741 const struct firmware *fw)
3743 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3744 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3745 struct be_dma_mem flash_cmd;
3746 const u8 *data_ptr = NULL;
3747 u8 *dest_image_ptr = NULL;
3748 size_t image_size = 0;
3750 u32 data_written = 0;
3756 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3757 dev_err(&adapter->pdev->dev,
3758 "FW Image not properly aligned. "
3759 "Length must be 4 byte aligned.\n");
3761 goto lancer_fw_exit;
3764 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3765 + LANCER_FW_DOWNLOAD_CHUNK;
3766 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3767 &flash_cmd.dma, GFP_KERNEL);
3768 if (!flash_cmd.va) {
3770 goto lancer_fw_exit;
3773 dest_image_ptr = flash_cmd.va +
3774 sizeof(struct lancer_cmd_req_write_object);
3775 image_size = fw->size;
3776 data_ptr = fw->data;
3778 while (image_size) {
3779 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3781 /* Copy the image chunk content. */
3782 memcpy(dest_image_ptr, data_ptr, chunk_size);
3784 status = lancer_cmd_write_object(adapter, &flash_cmd,
3786 LANCER_FW_DOWNLOAD_LOCATION,
3787 &data_written, &change_status,
3792 offset += data_written;
3793 data_ptr += data_written;
3794 image_size -= data_written;
3798 /* Commit the FW written */
3799 status = lancer_cmd_write_object(adapter, &flash_cmd,
3801 LANCER_FW_DOWNLOAD_LOCATION,
3802 &data_written, &change_status,
3806 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3809 dev_err(&adapter->pdev->dev,
3810 "Firmware load error. "
3811 "Status code: 0x%x Additional Status: 0x%x\n",
3812 status, add_status);
3813 goto lancer_fw_exit;
3816 if (change_status == LANCER_FW_RESET_NEEDED) {
3817 status = lancer_physdev_ctrl(adapter,
3818 PHYSDEV_CONTROL_FW_RESET_MASK);
3820 dev_err(&adapter->pdev->dev,
3821 "Adapter busy for FW reset.\n"
3822 "New FW will not be active.\n");
3823 goto lancer_fw_exit;
3825 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3826 dev_err(&adapter->pdev->dev,
3827 "System reboot required for new FW"
3831 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3838 #define UFI_TYPE3R 10
3840 static int be_get_ufi_type(struct be_adapter *adapter,
3841 struct flash_file_hdr_g3 *fhdr)
3844 goto be_get_ufi_exit;
3846 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3848 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3849 if (fhdr->asic_type_rev == 0x10)
3853 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3857 dev_err(&adapter->pdev->dev,
3858 "UFI and Interface are not compatible for flashing\n");
3862 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3864 struct flash_file_hdr_g3 *fhdr3;
3865 struct image_hdr *img_hdr_ptr = NULL;
3866 struct be_dma_mem flash_cmd;
3868 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3870 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3871 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3872 &flash_cmd.dma, GFP_KERNEL);
3873 if (!flash_cmd.va) {
3879 fhdr3 = (struct flash_file_hdr_g3 *)p;
3881 ufi_type = be_get_ufi_type(adapter, fhdr3);
3883 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3884 for (i = 0; i < num_imgs; i++) {
3885 img_hdr_ptr = (struct image_hdr *)(fw->data +
3886 (sizeof(struct flash_file_hdr_g3) +
3887 i * sizeof(struct image_hdr)));
3888 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3891 status = be_flash_skyhawk(adapter, fw,
3892 &flash_cmd, num_imgs);
3895 status = be_flash_BEx(adapter, fw, &flash_cmd,
3899 /* Do not flash this ufi on BE3-R cards */
3900 if (adapter->asic_rev < 0x10)
3901 status = be_flash_BEx(adapter, fw,
3906 dev_err(&adapter->pdev->dev,
3907 "Can't load BE3 UFI on BE3R\n");
3913 if (ufi_type == UFI_TYPE2)
3914 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3915 else if (ufi_type == -1)
3918 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3921 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3925 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3931 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3933 const struct firmware *fw;
3936 if (!netif_running(adapter->netdev)) {
3937 dev_err(&adapter->pdev->dev,
3938 "Firmware load not allowed (interface is down)\n");
3942 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3946 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3948 if (lancer_chip(adapter))
3949 status = lancer_fw_download(adapter, fw);
3951 status = be_fw_download(adapter, fw);
3954 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3955 adapter->fw_on_flash);
3958 release_firmware(fw);
3962 static int be_ndo_bridge_setlink(struct net_device *dev,
3963 struct nlmsghdr *nlh)
3965 struct be_adapter *adapter = netdev_priv(dev);
3966 struct nlattr *attr, *br_spec;
3971 if (!sriov_enabled(adapter))
3974 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
3976 nla_for_each_nested(attr, br_spec, rem) {
3977 if (nla_type(attr) != IFLA_BRIDGE_MODE)
3980 mode = nla_get_u16(attr);
3981 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
3984 status = be_cmd_set_hsw_config(adapter, 0, 0,
3986 mode == BRIDGE_MODE_VEPA ?
3987 PORT_FWD_TYPE_VEPA :
3992 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
3993 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3998 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
3999 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
4004 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4005 struct net_device *dev,
4008 struct be_adapter *adapter = netdev_priv(dev);
4012 if (!sriov_enabled(adapter))
4015 /* BE and Lancer chips support VEB mode only */
4016 if (BEx_chip(adapter) || lancer_chip(adapter)) {
4017 hsw_mode = PORT_FWD_TYPE_VEB;
4019 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4020 adapter->if_handle, &hsw_mode);
4025 return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4026 hsw_mode == PORT_FWD_TYPE_VEPA ?
4027 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4030 static const struct net_device_ops be_netdev_ops = {
4031 .ndo_open = be_open,
4032 .ndo_stop = be_close,
4033 .ndo_start_xmit = be_xmit,
4034 .ndo_set_rx_mode = be_set_rx_mode,
4035 .ndo_set_mac_address = be_mac_addr_set,
4036 .ndo_change_mtu = be_change_mtu,
4037 .ndo_get_stats64 = be_get_stats64,
4038 .ndo_validate_addr = eth_validate_addr,
4039 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
4040 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
4041 .ndo_set_vf_mac = be_set_vf_mac,
4042 .ndo_set_vf_vlan = be_set_vf_vlan,
4043 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
4044 .ndo_get_vf_config = be_get_vf_config,
4045 #ifdef CONFIG_NET_POLL_CONTROLLER
4046 .ndo_poll_controller = be_netpoll,
4048 .ndo_bridge_setlink = be_ndo_bridge_setlink,
4049 .ndo_bridge_getlink = be_ndo_bridge_getlink,
4050 #ifdef CONFIG_NET_RX_BUSY_POLL
4051 .ndo_busy_poll = be_busy_poll
4055 static void be_netdev_init(struct net_device *netdev)
4057 struct be_adapter *adapter = netdev_priv(netdev);
4059 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4060 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4061 NETIF_F_HW_VLAN_CTAG_TX;
4062 if (be_multi_rxq(adapter))
4063 netdev->hw_features |= NETIF_F_RXHASH;
4065 netdev->features |= netdev->hw_features |
4066 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4068 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4069 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4071 netdev->priv_flags |= IFF_UNICAST_FLT;
4073 netdev->flags |= IFF_MULTICAST;
4075 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4077 netdev->netdev_ops = &be_netdev_ops;
4079 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
4082 static void be_unmap_pci_bars(struct be_adapter *adapter)
4085 pci_iounmap(adapter->pdev, adapter->csr);
4087 pci_iounmap(adapter->pdev, adapter->db);
4090 static int db_bar(struct be_adapter *adapter)
4092 if (lancer_chip(adapter) || !be_physfn(adapter))
4098 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4100 if (skyhawk_chip(adapter)) {
4101 adapter->roce_db.size = 4096;
4102 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4104 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4110 static int be_map_pci_bars(struct be_adapter *adapter)
4114 if (BEx_chip(adapter) && be_physfn(adapter)) {
4115 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4116 if (adapter->csr == NULL)
4120 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4125 be_roce_map_pci_bars(adapter);
4129 be_unmap_pci_bars(adapter);
4133 static void be_ctrl_cleanup(struct be_adapter *adapter)
4135 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4137 be_unmap_pci_bars(adapter);
4140 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4143 mem = &adapter->rx_filter;
4145 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4149 static int be_ctrl_init(struct be_adapter *adapter)
4151 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4152 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4153 struct be_dma_mem *rx_filter = &adapter->rx_filter;
4157 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4158 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4159 SLI_INTF_FAMILY_SHIFT;
4160 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4162 status = be_map_pci_bars(adapter);
4166 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4167 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4168 mbox_mem_alloc->size,
4169 &mbox_mem_alloc->dma,
4171 if (!mbox_mem_alloc->va) {
4173 goto unmap_pci_bars;
4175 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4176 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4177 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4178 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4180 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4181 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4182 rx_filter->size, &rx_filter->dma,
4184 if (rx_filter->va == NULL) {
4189 mutex_init(&adapter->mbox_lock);
4190 spin_lock_init(&adapter->mcc_lock);
4191 spin_lock_init(&adapter->mcc_cq_lock);
4193 init_completion(&adapter->flash_compl);
4194 pci_save_state(adapter->pdev);
4198 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4199 mbox_mem_alloc->va, mbox_mem_alloc->dma);
4202 be_unmap_pci_bars(adapter);
4208 static void be_stats_cleanup(struct be_adapter *adapter)
4210 struct be_dma_mem *cmd = &adapter->stats_cmd;
4213 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4217 static int be_stats_init(struct be_adapter *adapter)
4219 struct be_dma_mem *cmd = &adapter->stats_cmd;
4221 if (lancer_chip(adapter))
4222 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4223 else if (BE2_chip(adapter))
4224 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4225 else if (BE3_chip(adapter))
4226 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4228 /* ALL non-BE ASICs */
4229 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4231 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4233 if (cmd->va == NULL)
4238 static void be_remove(struct pci_dev *pdev)
4240 struct be_adapter *adapter = pci_get_drvdata(pdev);
4245 be_roce_dev_remove(adapter);
4246 be_intr_set(adapter, false);
4248 cancel_delayed_work_sync(&adapter->func_recovery_work);
4250 unregister_netdev(adapter->netdev);
4254 /* tell fw we're done with firing cmds */
4255 be_cmd_fw_clean(adapter);
4257 be_stats_cleanup(adapter);
4259 be_ctrl_cleanup(adapter);
4261 pci_disable_pcie_error_reporting(pdev);
4263 pci_release_regions(pdev);
4264 pci_disable_device(pdev);
4266 free_netdev(adapter->netdev);
4269 bool be_is_wol_supported(struct be_adapter *adapter)
4271 return ((adapter->wol_cap & BE_WOL_CAP) &&
4272 !be_is_wol_excluded(adapter)) ? true : false;
4275 u32 be_get_fw_log_level(struct be_adapter *adapter)
4277 struct be_dma_mem extfat_cmd;
4278 struct be_fat_conf_params *cfgs;
4283 if (lancer_chip(adapter))
4286 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4287 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4288 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4291 if (!extfat_cmd.va) {
4292 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4297 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4299 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4300 sizeof(struct be_cmd_resp_hdr));
4301 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4302 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4303 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4306 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4312 static int be_get_initial_config(struct be_adapter *adapter)
4317 status = be_cmd_get_cntl_attributes(adapter);
4321 status = be_cmd_get_acpi_wol_cap(adapter);
4323 /* in case of a failure to get wol capabillities
4324 * check the exclusion list to determine WOL capability */
4325 if (!be_is_wol_excluded(adapter))
4326 adapter->wol_cap |= BE_WOL_CAP;
4329 if (be_is_wol_supported(adapter))
4330 adapter->wol = true;
4332 /* Must be a power of 2 or else MODULO will BUG_ON */
4333 adapter->be_get_temp_freq = 64;
4335 level = be_get_fw_log_level(adapter);
4336 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4338 adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4342 static int lancer_recover_func(struct be_adapter *adapter)
4344 struct device *dev = &adapter->pdev->dev;
4347 status = lancer_test_and_set_rdy_state(adapter);
4351 if (netif_running(adapter->netdev))
4352 be_close(adapter->netdev);
4356 be_clear_all_error(adapter);
4358 status = be_setup(adapter);
4362 if (netif_running(adapter->netdev)) {
4363 status = be_open(adapter->netdev);
4368 dev_err(dev, "Error recovery successful\n");
4371 if (status == -EAGAIN)
4372 dev_err(dev, "Waiting for resource provisioning\n");
4374 dev_err(dev, "Error recovery failed\n");
4379 static void be_func_recovery_task(struct work_struct *work)
4381 struct be_adapter *adapter =
4382 container_of(work, struct be_adapter, func_recovery_work.work);
4385 be_detect_error(adapter);
4387 if (adapter->hw_error && lancer_chip(adapter)) {
4390 netif_device_detach(adapter->netdev);
4393 status = lancer_recover_func(adapter);
4395 netif_device_attach(adapter->netdev);
4398 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4399 * no need to attempt further recovery.
4401 if (!status || status == -EAGAIN)
4402 schedule_delayed_work(&adapter->func_recovery_work,
4403 msecs_to_jiffies(1000));
4406 static void be_worker(struct work_struct *work)
4408 struct be_adapter *adapter =
4409 container_of(work, struct be_adapter, work.work);
4410 struct be_rx_obj *rxo;
4413 /* when interrupts are not yet enabled, just reap any pending
4414 * mcc completions */
4415 if (!netif_running(adapter->netdev)) {
4417 be_process_mcc(adapter);
4422 if (!adapter->stats_cmd_sent) {
4423 if (lancer_chip(adapter))
4424 lancer_cmd_get_pport_stats(adapter,
4425 &adapter->stats_cmd);
4427 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4430 if (be_physfn(adapter) &&
4431 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4432 be_cmd_get_die_temperature(adapter);
4434 for_all_rx_queues(adapter, rxo, i) {
4435 /* Replenish RX-queues starved due to memory
4436 * allocation failures.
4438 if (rxo->rx_post_starved)
4439 be_post_rx_frags(rxo, GFP_KERNEL);
4442 be_eqd_update(adapter);
4445 adapter->work_counter++;
4446 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4449 /* If any VFs are already enabled don't FLR the PF */
4450 static bool be_reset_required(struct be_adapter *adapter)
4452 return pci_num_vf(adapter->pdev) ? false : true;
4455 static char *mc_name(struct be_adapter *adapter)
4457 if (adapter->function_mode & FLEX10_MODE)
4459 else if (adapter->function_mode & VNIC_MODE)
4461 else if (adapter->function_mode & UMC_ENABLED)
4467 static inline char *func_name(struct be_adapter *adapter)
4469 return be_physfn(adapter) ? "PF" : "VF";
4472 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4475 struct be_adapter *adapter;
4476 struct net_device *netdev;
4479 status = pci_enable_device(pdev);
4483 status = pci_request_regions(pdev, DRV_NAME);
4486 pci_set_master(pdev);
4488 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4489 if (netdev == NULL) {
4493 adapter = netdev_priv(netdev);
4494 adapter->pdev = pdev;
4495 pci_set_drvdata(pdev, adapter);
4496 adapter->netdev = netdev;
4497 SET_NETDEV_DEV(netdev, &pdev->dev);
4499 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
4501 netdev->features |= NETIF_F_HIGHDMA;
4503 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
4505 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4510 if (be_physfn(adapter)) {
4511 status = pci_enable_pcie_error_reporting(pdev);
4513 dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4516 status = be_ctrl_init(adapter);
4520 /* sync up with fw's ready state */
4521 if (be_physfn(adapter)) {
4522 status = be_fw_wait_ready(adapter);
4527 if (be_reset_required(adapter)) {
4528 status = be_cmd_reset_function(adapter);
4532 /* Wait for interrupts to quiesce after an FLR */
4536 /* Allow interrupts for other ULPs running on NIC function */
4537 be_intr_set(adapter, true);
4539 /* tell fw we're ready to fire cmds */
4540 status = be_cmd_fw_init(adapter);
4544 status = be_stats_init(adapter);
4548 status = be_get_initial_config(adapter);
4552 INIT_DELAYED_WORK(&adapter->work, be_worker);
4553 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4554 adapter->rx_fc = adapter->tx_fc = true;
4556 status = be_setup(adapter);
4560 be_netdev_init(netdev);
4561 status = register_netdev(netdev);
4565 be_roce_dev_add(adapter);
4567 schedule_delayed_work(&adapter->func_recovery_work,
4568 msecs_to_jiffies(1000));
4570 be_cmd_query_port_name(adapter, &port_name);
4572 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4573 func_name(adapter), mc_name(adapter), port_name);
4580 be_stats_cleanup(adapter);
4582 be_ctrl_cleanup(adapter);
4584 free_netdev(netdev);
4586 pci_release_regions(pdev);
4588 pci_disable_device(pdev);
4590 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4594 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4596 struct be_adapter *adapter = pci_get_drvdata(pdev);
4597 struct net_device *netdev = adapter->netdev;
4600 be_setup_wol(adapter, true);
4602 cancel_delayed_work_sync(&adapter->func_recovery_work);
4604 netif_device_detach(netdev);
4605 if (netif_running(netdev)) {
4612 pci_save_state(pdev);
4613 pci_disable_device(pdev);
4614 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4618 static int be_resume(struct pci_dev *pdev)
4621 struct be_adapter *adapter = pci_get_drvdata(pdev);
4622 struct net_device *netdev = adapter->netdev;
4624 netif_device_detach(netdev);
4626 status = pci_enable_device(pdev);
4630 pci_set_power_state(pdev, PCI_D0);
4631 pci_restore_state(pdev);
4633 status = be_fw_wait_ready(adapter);
4637 /* tell fw we're ready to fire cmds */
4638 status = be_cmd_fw_init(adapter);
4643 if (netif_running(netdev)) {
4649 schedule_delayed_work(&adapter->func_recovery_work,
4650 msecs_to_jiffies(1000));
4651 netif_device_attach(netdev);
4654 be_setup_wol(adapter, false);
4660 * An FLR will stop BE from DMAing any data.
4662 static void be_shutdown(struct pci_dev *pdev)
4664 struct be_adapter *adapter = pci_get_drvdata(pdev);
4669 cancel_delayed_work_sync(&adapter->work);
4670 cancel_delayed_work_sync(&adapter->func_recovery_work);
4672 netif_device_detach(adapter->netdev);
4674 be_cmd_reset_function(adapter);
4676 pci_disable_device(pdev);
4679 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4680 pci_channel_state_t state)
4682 struct be_adapter *adapter = pci_get_drvdata(pdev);
4683 struct net_device *netdev = adapter->netdev;
4685 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4687 if (!adapter->eeh_error) {
4688 adapter->eeh_error = true;
4690 cancel_delayed_work_sync(&adapter->func_recovery_work);
4693 netif_device_detach(netdev);
4694 if (netif_running(netdev))
4701 if (state == pci_channel_io_perm_failure)
4702 return PCI_ERS_RESULT_DISCONNECT;
4704 pci_disable_device(pdev);
4706 /* The error could cause the FW to trigger a flash debug dump.
4707 * Resetting the card while flash dump is in progress
4708 * can cause it not to recover; wait for it to finish.
4709 * Wait only for first function as it is needed only once per
4712 if (pdev->devfn == 0)
4715 return PCI_ERS_RESULT_NEED_RESET;
4718 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4720 struct be_adapter *adapter = pci_get_drvdata(pdev);
4723 dev_info(&adapter->pdev->dev, "EEH reset\n");
4725 status = pci_enable_device(pdev);
4727 return PCI_ERS_RESULT_DISCONNECT;
4729 pci_set_master(pdev);
4730 pci_set_power_state(pdev, PCI_D0);
4731 pci_restore_state(pdev);
4733 /* Check if card is ok and fw is ready */
4734 dev_info(&adapter->pdev->dev,
4735 "Waiting for FW to be ready after EEH reset\n");
4736 status = be_fw_wait_ready(adapter);
4738 return PCI_ERS_RESULT_DISCONNECT;
4740 pci_cleanup_aer_uncorrect_error_status(pdev);
4741 be_clear_all_error(adapter);
4742 return PCI_ERS_RESULT_RECOVERED;
4745 static void be_eeh_resume(struct pci_dev *pdev)
4748 struct be_adapter *adapter = pci_get_drvdata(pdev);
4749 struct net_device *netdev = adapter->netdev;
4751 dev_info(&adapter->pdev->dev, "EEH resume\n");
4753 pci_save_state(pdev);
4755 status = be_cmd_reset_function(adapter);
4759 /* tell fw we're ready to fire cmds */
4760 status = be_cmd_fw_init(adapter);
4764 status = be_setup(adapter);
4768 if (netif_running(netdev)) {
4769 status = be_open(netdev);
4774 schedule_delayed_work(&adapter->func_recovery_work,
4775 msecs_to_jiffies(1000));
4776 netif_device_attach(netdev);
4779 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4782 static const struct pci_error_handlers be_eeh_handlers = {
4783 .error_detected = be_eeh_err_detected,
4784 .slot_reset = be_eeh_reset,
4785 .resume = be_eeh_resume,
4788 static struct pci_driver be_driver = {
4790 .id_table = be_dev_ids,
4792 .remove = be_remove,
4793 .suspend = be_suspend,
4794 .resume = be_resume,
4795 .shutdown = be_shutdown,
4796 .err_handler = &be_eeh_handlers
4799 static int __init be_init_module(void)
4801 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4802 rx_frag_size != 2048) {
4803 printk(KERN_WARNING DRV_NAME
4804 " : Module param rx_frag_size must be 2048/4096/8192."
4806 rx_frag_size = 2048;
4809 return pci_register_driver(&be_driver);
4811 module_init(be_init_module);
4813 static void __exit be_exit_module(void)
4815 pci_unregister_driver(&be_driver);
4817 module_exit(be_exit_module);