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>
25 MODULE_VERSION(DRV_VER);
26 MODULE_DEVICE_TABLE(pci, be_dev_ids);
27 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
28 MODULE_AUTHOR("Emulex Corporation");
29 MODULE_LICENSE("GPL");
31 static unsigned int num_vfs;
32 module_param(num_vfs, uint, S_IRUGO);
33 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
35 static ushort rx_frag_size = 2048;
36 module_param(rx_frag_size, ushort, S_IRUGO);
37 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
39 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
40 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
41 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
42 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
43 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
44 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
45 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
46 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
50 MODULE_DEVICE_TABLE(pci, be_dev_ids);
51 /* UE Status Low CSR */
52 static const char * const ue_status_low_desc[] = {
86 /* UE Status High CSR */
87 static const char * const ue_status_hi_desc[] = {
122 /* Is BE in a multi-channel mode */
123 static inline bool be_is_mc(struct be_adapter *adapter) {
124 return (adapter->function_mode & FLEX10_MODE ||
125 adapter->function_mode & VNIC_MODE ||
126 adapter->function_mode & UMC_ENABLED);
129 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
131 struct be_dma_mem *mem = &q->dma_mem;
133 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
139 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
140 u16 len, u16 entry_size)
142 struct be_dma_mem *mem = &q->dma_mem;
144 memset(q, 0, sizeof(*q));
146 q->entry_size = entry_size;
147 mem->size = len * entry_size;
148 mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
149 GFP_KERNEL | __GFP_ZERO);
155 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
159 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
161 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
163 if (!enabled && enable)
164 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
165 else if (enabled && !enable)
166 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
170 pci_write_config_dword(adapter->pdev,
171 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
174 static void be_intr_set(struct be_adapter *adapter, bool enable)
178 /* On lancer interrupts can't be controlled via this register */
179 if (lancer_chip(adapter))
182 if (adapter->eeh_error)
185 status = be_cmd_intr_set(adapter, enable);
187 be_reg_intr_set(adapter, enable);
190 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
193 val |= qid & DB_RQ_RING_ID_MASK;
194 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
197 iowrite32(val, adapter->db + DB_RQ_OFFSET);
200 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
204 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
205 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
208 iowrite32(val, adapter->db + txo->db_offset);
211 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
212 bool arm, bool clear_int, u16 num_popped)
215 val |= qid & DB_EQ_RING_ID_MASK;
216 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
217 DB_EQ_RING_ID_EXT_MASK_SHIFT);
219 if (adapter->eeh_error)
223 val |= 1 << DB_EQ_REARM_SHIFT;
225 val |= 1 << DB_EQ_CLR_SHIFT;
226 val |= 1 << DB_EQ_EVNT_SHIFT;
227 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
228 iowrite32(val, adapter->db + DB_EQ_OFFSET);
231 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
234 val |= qid & DB_CQ_RING_ID_MASK;
235 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
236 DB_CQ_RING_ID_EXT_MASK_SHIFT);
238 if (adapter->eeh_error)
242 val |= 1 << DB_CQ_REARM_SHIFT;
243 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
244 iowrite32(val, adapter->db + DB_CQ_OFFSET);
247 static int be_mac_addr_set(struct net_device *netdev, void *p)
249 struct be_adapter *adapter = netdev_priv(netdev);
250 struct sockaddr *addr = p;
252 u8 current_mac[ETH_ALEN];
253 u32 pmac_id = adapter->pmac_id[0];
254 bool active_mac = true;
256 if (!is_valid_ether_addr(addr->sa_data))
257 return -EADDRNOTAVAIL;
259 /* For BE VF, MAC address is already activated by PF.
260 * Hence only operation left is updating netdev->devaddr.
261 * Update it if user is passing the same MAC which was used
262 * during configuring VF MAC from PF(Hypervisor).
264 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
265 status = be_cmd_mac_addr_query(adapter, current_mac,
266 false, adapter->if_handle, 0);
267 if (!status && !memcmp(current_mac, addr->sa_data, ETH_ALEN))
273 if (!memcmp(addr->sa_data, netdev->dev_addr, ETH_ALEN))
276 /* For Lancer check if any MAC is active.
277 * If active, get its mac id.
279 if (lancer_chip(adapter) && !be_physfn(adapter))
280 be_cmd_get_mac_from_list(adapter, current_mac, &active_mac,
283 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
285 &adapter->pmac_id[0], 0);
291 be_cmd_pmac_del(adapter, adapter->if_handle,
294 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
297 dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
301 /* BE2 supports only v0 cmd */
302 static void *hw_stats_from_cmd(struct be_adapter *adapter)
304 if (BE2_chip(adapter)) {
305 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
307 return &cmd->hw_stats;
309 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
311 return &cmd->hw_stats;
315 /* BE2 supports only v0 cmd */
316 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
318 if (BE2_chip(adapter)) {
319 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
321 return &hw_stats->erx;
323 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
325 return &hw_stats->erx;
329 static void populate_be_v0_stats(struct be_adapter *adapter)
331 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
332 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
333 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
334 struct be_port_rxf_stats_v0 *port_stats =
335 &rxf_stats->port[adapter->port_num];
336 struct be_drv_stats *drvs = &adapter->drv_stats;
338 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
339 drvs->rx_pause_frames = port_stats->rx_pause_frames;
340 drvs->rx_crc_errors = port_stats->rx_crc_errors;
341 drvs->rx_control_frames = port_stats->rx_control_frames;
342 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
343 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
344 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
345 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
346 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
347 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
348 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
349 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
350 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
351 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
352 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
353 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
354 drvs->rx_dropped_header_too_small =
355 port_stats->rx_dropped_header_too_small;
356 drvs->rx_address_filtered =
357 port_stats->rx_address_filtered +
358 port_stats->rx_vlan_filtered;
359 drvs->rx_alignment_symbol_errors =
360 port_stats->rx_alignment_symbol_errors;
362 drvs->tx_pauseframes = port_stats->tx_pauseframes;
363 drvs->tx_controlframes = port_stats->tx_controlframes;
365 if (adapter->port_num)
366 drvs->jabber_events = rxf_stats->port1_jabber_events;
368 drvs->jabber_events = rxf_stats->port0_jabber_events;
369 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
370 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
371 drvs->forwarded_packets = rxf_stats->forwarded_packets;
372 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
373 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
374 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
375 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
378 static void populate_be_v1_stats(struct be_adapter *adapter)
380 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
381 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
382 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
383 struct be_port_rxf_stats_v1 *port_stats =
384 &rxf_stats->port[adapter->port_num];
385 struct be_drv_stats *drvs = &adapter->drv_stats;
387 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
388 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
389 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
390 drvs->rx_pause_frames = port_stats->rx_pause_frames;
391 drvs->rx_crc_errors = port_stats->rx_crc_errors;
392 drvs->rx_control_frames = port_stats->rx_control_frames;
393 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
394 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
395 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
396 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
397 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
398 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
399 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
400 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
401 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
402 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
403 drvs->rx_dropped_header_too_small =
404 port_stats->rx_dropped_header_too_small;
405 drvs->rx_input_fifo_overflow_drop =
406 port_stats->rx_input_fifo_overflow_drop;
407 drvs->rx_address_filtered = port_stats->rx_address_filtered;
408 drvs->rx_alignment_symbol_errors =
409 port_stats->rx_alignment_symbol_errors;
410 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
411 drvs->tx_pauseframes = port_stats->tx_pauseframes;
412 drvs->tx_controlframes = port_stats->tx_controlframes;
413 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
414 drvs->jabber_events = port_stats->jabber_events;
415 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
416 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
417 drvs->forwarded_packets = rxf_stats->forwarded_packets;
418 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
419 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
420 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
421 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
424 static void populate_lancer_stats(struct be_adapter *adapter)
427 struct be_drv_stats *drvs = &adapter->drv_stats;
428 struct lancer_pport_stats *pport_stats =
429 pport_stats_from_cmd(adapter);
431 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
432 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
433 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
434 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
435 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
436 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
437 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
438 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
439 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
440 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
441 drvs->rx_dropped_tcp_length =
442 pport_stats->rx_dropped_invalid_tcp_length;
443 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
444 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
445 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
446 drvs->rx_dropped_header_too_small =
447 pport_stats->rx_dropped_header_too_small;
448 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
449 drvs->rx_address_filtered =
450 pport_stats->rx_address_filtered +
451 pport_stats->rx_vlan_filtered;
452 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
453 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
454 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
455 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
456 drvs->jabber_events = pport_stats->rx_jabbers;
457 drvs->forwarded_packets = pport_stats->num_forwards_lo;
458 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
459 drvs->rx_drops_too_many_frags =
460 pport_stats->rx_drops_too_many_frags_lo;
463 static void accumulate_16bit_val(u32 *acc, u16 val)
465 #define lo(x) (x & 0xFFFF)
466 #define hi(x) (x & 0xFFFF0000)
467 bool wrapped = val < lo(*acc);
468 u32 newacc = hi(*acc) + val;
472 ACCESS_ONCE(*acc) = newacc;
475 void populate_erx_stats(struct be_adapter *adapter,
476 struct be_rx_obj *rxo,
479 if (!BEx_chip(adapter))
480 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
482 /* below erx HW counter can actually wrap around after
483 * 65535. Driver accumulates a 32-bit value
485 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
489 void be_parse_stats(struct be_adapter *adapter)
491 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
492 struct be_rx_obj *rxo;
496 if (lancer_chip(adapter)) {
497 populate_lancer_stats(adapter);
499 if (BE2_chip(adapter))
500 populate_be_v0_stats(adapter);
502 /* for BE3 and Skyhawk */
503 populate_be_v1_stats(adapter);
505 /* as erx_v1 is longer than v0, ok to use v1 for v0 access */
506 for_all_rx_queues(adapter, rxo, i) {
507 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
508 populate_erx_stats(adapter, rxo, erx_stat);
513 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
514 struct rtnl_link_stats64 *stats)
516 struct be_adapter *adapter = netdev_priv(netdev);
517 struct be_drv_stats *drvs = &adapter->drv_stats;
518 struct be_rx_obj *rxo;
519 struct be_tx_obj *txo;
524 for_all_rx_queues(adapter, rxo, i) {
525 const struct be_rx_stats *rx_stats = rx_stats(rxo);
527 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
528 pkts = rx_stats(rxo)->rx_pkts;
529 bytes = rx_stats(rxo)->rx_bytes;
530 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
531 stats->rx_packets += pkts;
532 stats->rx_bytes += bytes;
533 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
534 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
535 rx_stats(rxo)->rx_drops_no_frags;
538 for_all_tx_queues(adapter, txo, i) {
539 const struct be_tx_stats *tx_stats = tx_stats(txo);
541 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
542 pkts = tx_stats(txo)->tx_pkts;
543 bytes = tx_stats(txo)->tx_bytes;
544 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
545 stats->tx_packets += pkts;
546 stats->tx_bytes += bytes;
549 /* bad pkts received */
550 stats->rx_errors = drvs->rx_crc_errors +
551 drvs->rx_alignment_symbol_errors +
552 drvs->rx_in_range_errors +
553 drvs->rx_out_range_errors +
554 drvs->rx_frame_too_long +
555 drvs->rx_dropped_too_small +
556 drvs->rx_dropped_too_short +
557 drvs->rx_dropped_header_too_small +
558 drvs->rx_dropped_tcp_length +
559 drvs->rx_dropped_runt;
561 /* detailed rx errors */
562 stats->rx_length_errors = drvs->rx_in_range_errors +
563 drvs->rx_out_range_errors +
564 drvs->rx_frame_too_long;
566 stats->rx_crc_errors = drvs->rx_crc_errors;
568 /* frame alignment errors */
569 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
571 /* receiver fifo overrun */
572 /* drops_no_pbuf is no per i/f, it's per BE card */
573 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
574 drvs->rx_input_fifo_overflow_drop +
575 drvs->rx_drops_no_pbuf;
579 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
581 struct net_device *netdev = adapter->netdev;
583 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
584 netif_carrier_off(netdev);
585 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
588 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
589 netif_carrier_on(netdev);
591 netif_carrier_off(netdev);
594 static void be_tx_stats_update(struct be_tx_obj *txo,
595 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
597 struct be_tx_stats *stats = tx_stats(txo);
599 u64_stats_update_begin(&stats->sync);
601 stats->tx_wrbs += wrb_cnt;
602 stats->tx_bytes += copied;
603 stats->tx_pkts += (gso_segs ? gso_segs : 1);
606 u64_stats_update_end(&stats->sync);
609 /* Determine number of WRB entries needed to xmit data in an skb */
610 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
613 int cnt = (skb->len > skb->data_len);
615 cnt += skb_shinfo(skb)->nr_frags;
617 /* to account for hdr wrb */
619 if (lancer_chip(adapter) || !(cnt & 1)) {
622 /* add a dummy to make it an even num */
626 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
630 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
632 wrb->frag_pa_hi = upper_32_bits(addr);
633 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
634 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
638 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
644 vlan_tag = vlan_tx_tag_get(skb);
645 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
646 /* If vlan priority provided by OS is NOT in available bmap */
647 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
648 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
649 adapter->recommended_prio;
654 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
655 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
659 memset(hdr, 0, sizeof(*hdr));
661 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
663 if (skb_is_gso(skb)) {
664 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
665 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
666 hdr, skb_shinfo(skb)->gso_size);
667 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
668 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
669 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
671 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
672 else if (is_udp_pkt(skb))
673 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
676 if (vlan_tx_tag_present(skb)) {
677 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
678 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
679 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
682 /* To skip HW VLAN tagging: evt = 1, compl = 0 */
683 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
684 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
685 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
686 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
689 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
694 be_dws_le_to_cpu(wrb, sizeof(*wrb));
696 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
699 dma_unmap_single(dev, dma, wrb->frag_len,
702 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
706 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
707 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
712 struct device *dev = &adapter->pdev->dev;
713 struct sk_buff *first_skb = skb;
714 struct be_eth_wrb *wrb;
715 struct be_eth_hdr_wrb *hdr;
716 bool map_single = false;
719 hdr = queue_head_node(txq);
721 map_head = txq->head;
723 if (skb->len > skb->data_len) {
724 int len = skb_headlen(skb);
725 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
726 if (dma_mapping_error(dev, busaddr))
729 wrb = queue_head_node(txq);
730 wrb_fill(wrb, busaddr, len);
731 be_dws_cpu_to_le(wrb, sizeof(*wrb));
736 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
737 const struct skb_frag_struct *frag =
738 &skb_shinfo(skb)->frags[i];
739 busaddr = skb_frag_dma_map(dev, frag, 0,
740 skb_frag_size(frag), DMA_TO_DEVICE);
741 if (dma_mapping_error(dev, busaddr))
743 wrb = queue_head_node(txq);
744 wrb_fill(wrb, busaddr, skb_frag_size(frag));
745 be_dws_cpu_to_le(wrb, sizeof(*wrb));
747 copied += skb_frag_size(frag);
751 wrb = queue_head_node(txq);
753 be_dws_cpu_to_le(wrb, sizeof(*wrb));
757 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
758 be_dws_cpu_to_le(hdr, sizeof(*hdr));
762 txq->head = map_head;
764 wrb = queue_head_node(txq);
765 unmap_tx_frag(dev, wrb, map_single);
767 copied -= wrb->frag_len;
773 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
779 skb = skb_share_check(skb, GFP_ATOMIC);
783 if (vlan_tx_tag_present(skb))
784 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
786 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
788 vlan_tag = adapter->pvid;
789 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
790 * skip VLAN insertion
793 *skip_hw_vlan = true;
797 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
803 /* Insert the outer VLAN, if any */
804 if (adapter->qnq_vid) {
805 vlan_tag = adapter->qnq_vid;
806 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
810 *skip_hw_vlan = true;
816 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
818 struct ethhdr *eh = (struct ethhdr *)skb->data;
819 u16 offset = ETH_HLEN;
821 if (eh->h_proto == htons(ETH_P_IPV6)) {
822 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
824 offset += sizeof(struct ipv6hdr);
825 if (ip6h->nexthdr != NEXTHDR_TCP &&
826 ip6h->nexthdr != NEXTHDR_UDP) {
827 struct ipv6_opt_hdr *ehdr =
828 (struct ipv6_opt_hdr *) (skb->data + offset);
830 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
831 if (ehdr->hdrlen == 0xff)
838 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
840 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
843 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb)
845 return BE3_chip(adapter) &&
846 be_ipv6_exthdr_check(skb);
849 static netdev_tx_t be_xmit(struct sk_buff *skb,
850 struct net_device *netdev)
852 struct be_adapter *adapter = netdev_priv(netdev);
853 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
854 struct be_queue_info *txq = &txo->q;
855 struct iphdr *ip = NULL;
856 u32 wrb_cnt = 0, copied = 0;
857 u32 start = txq->head, eth_hdr_len;
858 bool dummy_wrb, stopped = false;
859 bool skip_hw_vlan = false;
860 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
862 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
863 VLAN_ETH_HLEN : ETH_HLEN;
865 /* For padded packets, BE HW modifies tot_len field in IP header
866 * incorrecly when VLAN tag is inserted by HW.
868 if (skb->len <= 60 && vlan_tx_tag_present(skb) && is_ipv4_pkt(skb)) {
869 ip = (struct iphdr *)ip_hdr(skb);
870 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
873 /* If vlan tag is already inlined in the packet, skip HW VLAN
874 * tagging in UMC mode
876 if ((adapter->function_mode & UMC_ENABLED) &&
877 veh->h_vlan_proto == htons(ETH_P_8021Q))
880 /* HW has a bug wherein it will calculate CSUM for VLAN
881 * pkts even though it is disabled.
882 * Manually insert VLAN in pkt.
884 if (skb->ip_summed != CHECKSUM_PARTIAL &&
885 vlan_tx_tag_present(skb)) {
886 skb = be_insert_vlan_in_pkt(adapter, skb, &skip_hw_vlan);
891 /* HW may lockup when VLAN HW tagging is requested on
892 * certain ipv6 packets. Drop such pkts if the HW workaround to
893 * skip HW tagging is not enabled by FW.
895 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
896 (adapter->pvid || adapter->qnq_vid) &&
897 !qnq_async_evt_rcvd(adapter)))
900 /* Manual VLAN tag insertion to prevent:
901 * ASIC lockup when the ASIC inserts VLAN tag into
902 * certain ipv6 packets. Insert VLAN tags in driver,
903 * and set event, completion, vlan bits accordingly
906 if (be_ipv6_tx_stall_chk(adapter, skb) &&
907 be_vlan_tag_tx_chk(adapter, skb)) {
908 skb = be_insert_vlan_in_pkt(adapter, skb, &skip_hw_vlan);
913 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
915 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
918 int gso_segs = skb_shinfo(skb)->gso_segs;
920 /* record the sent skb in the sent_skb table */
921 BUG_ON(txo->sent_skb_list[start]);
922 txo->sent_skb_list[start] = skb;
924 /* Ensure txq has space for the next skb; Else stop the queue
925 * *BEFORE* ringing the tx doorbell, so that we serialze the
926 * tx compls of the current transmit which'll wake up the queue
928 atomic_add(wrb_cnt, &txq->used);
929 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
931 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
935 be_txq_notify(adapter, txo, wrb_cnt);
937 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
940 dev_kfree_skb_any(skb);
946 static int be_change_mtu(struct net_device *netdev, int new_mtu)
948 struct be_adapter *adapter = netdev_priv(netdev);
949 if (new_mtu < BE_MIN_MTU ||
950 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
951 (ETH_HLEN + ETH_FCS_LEN))) {
952 dev_info(&adapter->pdev->dev,
953 "MTU must be between %d and %d bytes\n",
955 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
958 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
959 netdev->mtu, new_mtu);
960 netdev->mtu = new_mtu;
965 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
966 * If the user configures more, place BE in vlan promiscuous mode.
968 static int be_vid_config(struct be_adapter *adapter)
970 u16 vids[BE_NUM_VLANS_SUPPORTED];
974 /* No need to further configure vids if in promiscuous mode */
975 if (adapter->promiscuous)
978 if (adapter->vlans_added > adapter->max_vlans)
979 goto set_vlan_promisc;
981 /* Construct VLAN Table to give to HW */
982 for (i = 0; i < VLAN_N_VID; i++)
983 if (adapter->vlan_tag[i])
984 vids[num++] = cpu_to_le16(i);
986 status = be_cmd_vlan_config(adapter, adapter->if_handle,
989 /* Set to VLAN promisc mode as setting VLAN filter failed */
991 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
992 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
993 goto set_vlan_promisc;
999 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1004 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1006 struct be_adapter *adapter = netdev_priv(netdev);
1009 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1014 /* Packets with VID 0 are always received by Lancer by default */
1015 if (lancer_chip(adapter) && vid == 0)
1018 adapter->vlan_tag[vid] = 1;
1019 if (adapter->vlans_added <= (adapter->max_vlans + 1))
1020 status = be_vid_config(adapter);
1023 adapter->vlans_added++;
1025 adapter->vlan_tag[vid] = 0;
1030 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1032 struct be_adapter *adapter = netdev_priv(netdev);
1035 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1040 /* Packets with VID 0 are always received by Lancer by default */
1041 if (lancer_chip(adapter) && vid == 0)
1044 adapter->vlan_tag[vid] = 0;
1045 if (adapter->vlans_added <= adapter->max_vlans)
1046 status = be_vid_config(adapter);
1049 adapter->vlans_added--;
1051 adapter->vlan_tag[vid] = 1;
1056 static void be_set_rx_mode(struct net_device *netdev)
1058 struct be_adapter *adapter = netdev_priv(netdev);
1061 if (netdev->flags & IFF_PROMISC) {
1062 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1063 adapter->promiscuous = true;
1067 /* BE was previously in promiscuous mode; disable it */
1068 if (adapter->promiscuous) {
1069 adapter->promiscuous = false;
1070 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1072 if (adapter->vlans_added)
1073 be_vid_config(adapter);
1076 /* Enable multicast promisc if num configured exceeds what we support */
1077 if (netdev->flags & IFF_ALLMULTI ||
1078 netdev_mc_count(netdev) > adapter->max_mcast_mac) {
1079 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1083 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1084 struct netdev_hw_addr *ha;
1085 int i = 1; /* First slot is claimed by the Primary MAC */
1087 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1088 be_cmd_pmac_del(adapter, adapter->if_handle,
1089 adapter->pmac_id[i], 0);
1092 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
1093 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1094 adapter->promiscuous = true;
1098 netdev_for_each_uc_addr(ha, adapter->netdev) {
1099 adapter->uc_macs++; /* First slot is for Primary MAC */
1100 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1102 &adapter->pmac_id[adapter->uc_macs], 0);
1106 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1108 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1110 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1111 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1112 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1118 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1120 struct be_adapter *adapter = netdev_priv(netdev);
1121 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1123 bool active_mac = false;
1125 u8 old_mac[ETH_ALEN];
1127 if (!sriov_enabled(adapter))
1130 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1133 if (lancer_chip(adapter)) {
1134 status = be_cmd_get_mac_from_list(adapter, old_mac, &active_mac,
1136 if (!status && active_mac)
1137 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1140 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
1142 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1143 vf_cfg->pmac_id, vf + 1);
1145 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1146 &vf_cfg->pmac_id, vf + 1);
1150 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1153 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1158 static int be_get_vf_config(struct net_device *netdev, int vf,
1159 struct ifla_vf_info *vi)
1161 struct be_adapter *adapter = netdev_priv(netdev);
1162 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1164 if (!sriov_enabled(adapter))
1167 if (vf >= adapter->num_vfs)
1171 vi->tx_rate = vf_cfg->tx_rate;
1172 vi->vlan = vf_cfg->vlan_tag;
1174 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1179 static int be_set_vf_vlan(struct net_device *netdev,
1180 int vf, u16 vlan, u8 qos)
1182 struct be_adapter *adapter = netdev_priv(netdev);
1185 if (!sriov_enabled(adapter))
1188 if (vf >= adapter->num_vfs || vlan > 4095)
1192 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1193 /* If this is new value, program it. Else skip. */
1194 adapter->vf_cfg[vf].vlan_tag = vlan;
1196 status = be_cmd_set_hsw_config(adapter, vlan,
1197 vf + 1, adapter->vf_cfg[vf].if_handle);
1200 /* Reset Transparent Vlan Tagging. */
1201 adapter->vf_cfg[vf].vlan_tag = 0;
1202 vlan = adapter->vf_cfg[vf].def_vid;
1203 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1204 adapter->vf_cfg[vf].if_handle);
1209 dev_info(&adapter->pdev->dev,
1210 "VLAN %d config on VF %d failed\n", vlan, vf);
1214 static int be_set_vf_tx_rate(struct net_device *netdev,
1217 struct be_adapter *adapter = netdev_priv(netdev);
1220 if (!sriov_enabled(adapter))
1223 if (vf >= adapter->num_vfs)
1226 if (rate < 100 || rate > 10000) {
1227 dev_err(&adapter->pdev->dev,
1228 "tx rate must be between 100 and 10000 Mbps\n");
1232 if (lancer_chip(adapter))
1233 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1235 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1238 dev_err(&adapter->pdev->dev,
1239 "tx rate %d on VF %d failed\n", rate, vf);
1241 adapter->vf_cfg[vf].tx_rate = rate;
1245 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1247 struct pci_dev *dev, *pdev = adapter->pdev;
1248 int vfs = 0, assigned_vfs = 0, pos;
1251 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1254 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1255 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1257 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1259 if (dev->is_virtfn && pci_physfn(dev) == pdev) {
1261 if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1264 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1266 return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1269 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1271 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1272 ulong now = jiffies;
1273 ulong delta = now - stats->rx_jiffies;
1275 unsigned int start, eqd;
1277 if (!eqo->enable_aic) {
1282 if (eqo->idx >= adapter->num_rx_qs)
1285 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1287 /* Wrapped around */
1288 if (time_before(now, stats->rx_jiffies)) {
1289 stats->rx_jiffies = now;
1293 /* Update once a second */
1298 start = u64_stats_fetch_begin_bh(&stats->sync);
1299 pkts = stats->rx_pkts;
1300 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1302 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1303 stats->rx_pkts_prev = pkts;
1304 stats->rx_jiffies = now;
1305 eqd = (stats->rx_pps / 110000) << 3;
1306 eqd = min(eqd, eqo->max_eqd);
1307 eqd = max(eqd, eqo->min_eqd);
1312 if (eqd != eqo->cur_eqd) {
1313 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1318 static void be_rx_stats_update(struct be_rx_obj *rxo,
1319 struct be_rx_compl_info *rxcp)
1321 struct be_rx_stats *stats = rx_stats(rxo);
1323 u64_stats_update_begin(&stats->sync);
1325 stats->rx_bytes += rxcp->pkt_size;
1327 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1328 stats->rx_mcast_pkts++;
1330 stats->rx_compl_err++;
1331 u64_stats_update_end(&stats->sync);
1334 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1336 /* L4 checksum is not reliable for non TCP/UDP packets.
1337 * Also ignore ipcksm for ipv6 pkts */
1338 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1339 (rxcp->ip_csum || rxcp->ipv6);
1342 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1345 struct be_adapter *adapter = rxo->adapter;
1346 struct be_rx_page_info *rx_page_info;
1347 struct be_queue_info *rxq = &rxo->q;
1349 rx_page_info = &rxo->page_info_tbl[frag_idx];
1350 BUG_ON(!rx_page_info->page);
1352 if (rx_page_info->last_page_user) {
1353 dma_unmap_page(&adapter->pdev->dev,
1354 dma_unmap_addr(rx_page_info, bus),
1355 adapter->big_page_size, DMA_FROM_DEVICE);
1356 rx_page_info->last_page_user = false;
1359 atomic_dec(&rxq->used);
1360 return rx_page_info;
1363 /* Throwaway the data in the Rx completion */
1364 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1365 struct be_rx_compl_info *rxcp)
1367 struct be_queue_info *rxq = &rxo->q;
1368 struct be_rx_page_info *page_info;
1369 u16 i, num_rcvd = rxcp->num_rcvd;
1371 for (i = 0; i < num_rcvd; i++) {
1372 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1373 put_page(page_info->page);
1374 memset(page_info, 0, sizeof(*page_info));
1375 index_inc(&rxcp->rxq_idx, rxq->len);
1380 * skb_fill_rx_data forms a complete skb for an ether frame
1381 * indicated by rxcp.
1383 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1384 struct be_rx_compl_info *rxcp)
1386 struct be_queue_info *rxq = &rxo->q;
1387 struct be_rx_page_info *page_info;
1389 u16 hdr_len, curr_frag_len, remaining;
1392 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1393 start = page_address(page_info->page) + page_info->page_offset;
1396 /* Copy data in the first descriptor of this completion */
1397 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1399 skb->len = curr_frag_len;
1400 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1401 memcpy(skb->data, start, curr_frag_len);
1402 /* Complete packet has now been moved to data */
1403 put_page(page_info->page);
1405 skb->tail += curr_frag_len;
1408 memcpy(skb->data, start, hdr_len);
1409 skb_shinfo(skb)->nr_frags = 1;
1410 skb_frag_set_page(skb, 0, page_info->page);
1411 skb_shinfo(skb)->frags[0].page_offset =
1412 page_info->page_offset + hdr_len;
1413 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1414 skb->data_len = curr_frag_len - hdr_len;
1415 skb->truesize += rx_frag_size;
1416 skb->tail += hdr_len;
1418 page_info->page = NULL;
1420 if (rxcp->pkt_size <= rx_frag_size) {
1421 BUG_ON(rxcp->num_rcvd != 1);
1425 /* More frags present for this completion */
1426 index_inc(&rxcp->rxq_idx, rxq->len);
1427 remaining = rxcp->pkt_size - curr_frag_len;
1428 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1429 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1430 curr_frag_len = min(remaining, rx_frag_size);
1432 /* Coalesce all frags from the same physical page in one slot */
1433 if (page_info->page_offset == 0) {
1436 skb_frag_set_page(skb, j, page_info->page);
1437 skb_shinfo(skb)->frags[j].page_offset =
1438 page_info->page_offset;
1439 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1440 skb_shinfo(skb)->nr_frags++;
1442 put_page(page_info->page);
1445 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1446 skb->len += curr_frag_len;
1447 skb->data_len += curr_frag_len;
1448 skb->truesize += rx_frag_size;
1449 remaining -= curr_frag_len;
1450 index_inc(&rxcp->rxq_idx, rxq->len);
1451 page_info->page = NULL;
1453 BUG_ON(j > MAX_SKB_FRAGS);
1456 /* Process the RX completion indicated by rxcp when GRO is disabled */
1457 static void be_rx_compl_process(struct be_rx_obj *rxo,
1458 struct be_rx_compl_info *rxcp)
1460 struct be_adapter *adapter = rxo->adapter;
1461 struct net_device *netdev = adapter->netdev;
1462 struct sk_buff *skb;
1464 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1465 if (unlikely(!skb)) {
1466 rx_stats(rxo)->rx_drops_no_skbs++;
1467 be_rx_compl_discard(rxo, rxcp);
1471 skb_fill_rx_data(rxo, skb, rxcp);
1473 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1474 skb->ip_summed = CHECKSUM_UNNECESSARY;
1476 skb_checksum_none_assert(skb);
1478 skb->protocol = eth_type_trans(skb, netdev);
1479 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1480 if (netdev->features & NETIF_F_RXHASH)
1481 skb->rxhash = rxcp->rss_hash;
1485 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1487 netif_receive_skb(skb);
1490 /* Process the RX completion indicated by rxcp when GRO is enabled */
1491 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1492 struct be_rx_compl_info *rxcp)
1494 struct be_adapter *adapter = rxo->adapter;
1495 struct be_rx_page_info *page_info;
1496 struct sk_buff *skb = NULL;
1497 struct be_queue_info *rxq = &rxo->q;
1498 u16 remaining, curr_frag_len;
1501 skb = napi_get_frags(napi);
1503 be_rx_compl_discard(rxo, rxcp);
1507 remaining = rxcp->pkt_size;
1508 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1509 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1511 curr_frag_len = min(remaining, rx_frag_size);
1513 /* Coalesce all frags from the same physical page in one slot */
1514 if (i == 0 || page_info->page_offset == 0) {
1515 /* First frag or Fresh page */
1517 skb_frag_set_page(skb, j, page_info->page);
1518 skb_shinfo(skb)->frags[j].page_offset =
1519 page_info->page_offset;
1520 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1522 put_page(page_info->page);
1524 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1525 skb->truesize += rx_frag_size;
1526 remaining -= curr_frag_len;
1527 index_inc(&rxcp->rxq_idx, rxq->len);
1528 memset(page_info, 0, sizeof(*page_info));
1530 BUG_ON(j > MAX_SKB_FRAGS);
1532 skb_shinfo(skb)->nr_frags = j + 1;
1533 skb->len = rxcp->pkt_size;
1534 skb->data_len = rxcp->pkt_size;
1535 skb->ip_summed = CHECKSUM_UNNECESSARY;
1536 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1537 if (adapter->netdev->features & NETIF_F_RXHASH)
1538 skb->rxhash = rxcp->rss_hash;
1541 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1543 napi_gro_frags(napi);
1546 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1547 struct be_rx_compl_info *rxcp)
1550 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1551 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1552 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1553 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1554 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1556 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1558 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1560 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1562 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1564 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1566 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1568 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1570 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1572 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1575 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1578 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1579 struct be_rx_compl_info *rxcp)
1582 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1583 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1584 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1585 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1586 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1588 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1590 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1592 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1594 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1596 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1598 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1600 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1602 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1604 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1607 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1608 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1612 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1614 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1615 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1616 struct be_adapter *adapter = rxo->adapter;
1618 /* For checking the valid bit it is Ok to use either definition as the
1619 * valid bit is at the same position in both v0 and v1 Rx compl */
1620 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1624 be_dws_le_to_cpu(compl, sizeof(*compl));
1626 if (adapter->be3_native)
1627 be_parse_rx_compl_v1(compl, rxcp);
1629 be_parse_rx_compl_v0(compl, rxcp);
1635 /* vlanf could be wrongly set in some cards.
1636 * ignore if vtm is not set */
1637 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1640 if (!lancer_chip(adapter))
1641 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1643 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1644 !adapter->vlan_tag[rxcp->vlan_tag])
1648 /* As the compl has been parsed, reset it; we wont touch it again */
1649 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1651 queue_tail_inc(&rxo->cq);
1655 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1657 u32 order = get_order(size);
1661 return alloc_pages(gfp, order);
1665 * Allocate a page, split it to fragments of size rx_frag_size and post as
1666 * receive buffers to BE
1668 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1670 struct be_adapter *adapter = rxo->adapter;
1671 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1672 struct be_queue_info *rxq = &rxo->q;
1673 struct page *pagep = NULL;
1674 struct be_eth_rx_d *rxd;
1675 u64 page_dmaaddr = 0, frag_dmaaddr;
1676 u32 posted, page_offset = 0;
1678 page_info = &rxo->page_info_tbl[rxq->head];
1679 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1681 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1682 if (unlikely(!pagep)) {
1683 rx_stats(rxo)->rx_post_fail++;
1686 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1687 0, adapter->big_page_size,
1689 page_info->page_offset = 0;
1692 page_info->page_offset = page_offset + rx_frag_size;
1694 page_offset = page_info->page_offset;
1695 page_info->page = pagep;
1696 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1697 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1699 rxd = queue_head_node(rxq);
1700 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1701 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1703 /* Any space left in the current big page for another frag? */
1704 if ((page_offset + rx_frag_size + rx_frag_size) >
1705 adapter->big_page_size) {
1707 page_info->last_page_user = true;
1710 prev_page_info = page_info;
1711 queue_head_inc(rxq);
1712 page_info = &rxo->page_info_tbl[rxq->head];
1715 prev_page_info->last_page_user = true;
1718 atomic_add(posted, &rxq->used);
1719 be_rxq_notify(adapter, rxq->id, posted);
1720 } else if (atomic_read(&rxq->used) == 0) {
1721 /* Let be_worker replenish when memory is available */
1722 rxo->rx_post_starved = true;
1726 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1728 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1730 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1734 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1736 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1738 queue_tail_inc(tx_cq);
1742 static u16 be_tx_compl_process(struct be_adapter *adapter,
1743 struct be_tx_obj *txo, u16 last_index)
1745 struct be_queue_info *txq = &txo->q;
1746 struct be_eth_wrb *wrb;
1747 struct sk_buff **sent_skbs = txo->sent_skb_list;
1748 struct sk_buff *sent_skb;
1749 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1750 bool unmap_skb_hdr = true;
1752 sent_skb = sent_skbs[txq->tail];
1754 sent_skbs[txq->tail] = NULL;
1756 /* skip header wrb */
1757 queue_tail_inc(txq);
1760 cur_index = txq->tail;
1761 wrb = queue_tail_node(txq);
1762 unmap_tx_frag(&adapter->pdev->dev, wrb,
1763 (unmap_skb_hdr && skb_headlen(sent_skb)));
1764 unmap_skb_hdr = false;
1767 queue_tail_inc(txq);
1768 } while (cur_index != last_index);
1770 kfree_skb(sent_skb);
1774 /* Return the number of events in the event queue */
1775 static inline int events_get(struct be_eq_obj *eqo)
1777 struct be_eq_entry *eqe;
1781 eqe = queue_tail_node(&eqo->q);
1788 queue_tail_inc(&eqo->q);
1794 /* Leaves the EQ is disarmed state */
1795 static void be_eq_clean(struct be_eq_obj *eqo)
1797 int num = events_get(eqo);
1799 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1802 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1804 struct be_rx_page_info *page_info;
1805 struct be_queue_info *rxq = &rxo->q;
1806 struct be_queue_info *rx_cq = &rxo->cq;
1807 struct be_rx_compl_info *rxcp;
1808 struct be_adapter *adapter = rxo->adapter;
1812 /* Consume pending rx completions.
1813 * Wait for the flush completion (identified by zero num_rcvd)
1814 * to arrive. Notify CQ even when there are no more CQ entries
1815 * for HW to flush partially coalesced CQ entries.
1816 * In Lancer, there is no need to wait for flush compl.
1819 rxcp = be_rx_compl_get(rxo);
1821 if (lancer_chip(adapter))
1824 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1825 dev_warn(&adapter->pdev->dev,
1826 "did not receive flush compl\n");
1829 be_cq_notify(adapter, rx_cq->id, true, 0);
1832 be_rx_compl_discard(rxo, rxcp);
1833 be_cq_notify(adapter, rx_cq->id, false, 1);
1834 if (rxcp->num_rcvd == 0)
1839 /* After cleanup, leave the CQ in unarmed state */
1840 be_cq_notify(adapter, rx_cq->id, false, 0);
1842 /* Then free posted rx buffers that were not used */
1843 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1844 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1845 page_info = get_rx_page_info(rxo, tail);
1846 put_page(page_info->page);
1847 memset(page_info, 0, sizeof(*page_info));
1849 BUG_ON(atomic_read(&rxq->used));
1850 rxq->tail = rxq->head = 0;
1853 static void be_tx_compl_clean(struct be_adapter *adapter)
1855 struct be_tx_obj *txo;
1856 struct be_queue_info *txq;
1857 struct be_eth_tx_compl *txcp;
1858 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1859 struct sk_buff *sent_skb;
1861 int i, pending_txqs;
1863 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1865 pending_txqs = adapter->num_tx_qs;
1867 for_all_tx_queues(adapter, txo, i) {
1869 while ((txcp = be_tx_compl_get(&txo->cq))) {
1871 AMAP_GET_BITS(struct amap_eth_tx_compl,
1873 num_wrbs += be_tx_compl_process(adapter, txo,
1878 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1879 atomic_sub(num_wrbs, &txq->used);
1883 if (atomic_read(&txq->used) == 0)
1887 if (pending_txqs == 0 || ++timeo > 200)
1893 for_all_tx_queues(adapter, txo, i) {
1895 if (atomic_read(&txq->used))
1896 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1897 atomic_read(&txq->used));
1899 /* free posted tx for which compls will never arrive */
1900 while (atomic_read(&txq->used)) {
1901 sent_skb = txo->sent_skb_list[txq->tail];
1902 end_idx = txq->tail;
1903 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1905 index_adv(&end_idx, num_wrbs - 1, txq->len);
1906 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1907 atomic_sub(num_wrbs, &txq->used);
1912 static void be_evt_queues_destroy(struct be_adapter *adapter)
1914 struct be_eq_obj *eqo;
1917 for_all_evt_queues(adapter, eqo, i) {
1918 if (eqo->q.created) {
1920 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1922 be_queue_free(adapter, &eqo->q);
1926 static int be_evt_queues_create(struct be_adapter *adapter)
1928 struct be_queue_info *eq;
1929 struct be_eq_obj *eqo;
1932 adapter->num_evt_qs = num_irqs(adapter);
1934 for_all_evt_queues(adapter, eqo, i) {
1935 eqo->adapter = adapter;
1936 eqo->tx_budget = BE_TX_BUDGET;
1938 eqo->max_eqd = BE_MAX_EQD;
1939 eqo->enable_aic = true;
1942 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1943 sizeof(struct be_eq_entry));
1947 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1954 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1956 struct be_queue_info *q;
1958 q = &adapter->mcc_obj.q;
1960 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1961 be_queue_free(adapter, q);
1963 q = &adapter->mcc_obj.cq;
1965 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1966 be_queue_free(adapter, q);
1969 /* Must be called only after TX qs are created as MCC shares TX EQ */
1970 static int be_mcc_queues_create(struct be_adapter *adapter)
1972 struct be_queue_info *q, *cq;
1974 cq = &adapter->mcc_obj.cq;
1975 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1976 sizeof(struct be_mcc_compl)))
1979 /* Use the default EQ for MCC completions */
1980 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1983 q = &adapter->mcc_obj.q;
1984 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1985 goto mcc_cq_destroy;
1987 if (be_cmd_mccq_create(adapter, q, cq))
1993 be_queue_free(adapter, q);
1995 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1997 be_queue_free(adapter, cq);
2002 static void be_tx_queues_destroy(struct be_adapter *adapter)
2004 struct be_queue_info *q;
2005 struct be_tx_obj *txo;
2008 for_all_tx_queues(adapter, txo, i) {
2011 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2012 be_queue_free(adapter, q);
2016 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2017 be_queue_free(adapter, q);
2021 static int be_num_txqs_want(struct be_adapter *adapter)
2023 if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
2024 be_is_mc(adapter) ||
2025 (!lancer_chip(adapter) && !be_physfn(adapter)) ||
2029 return adapter->max_tx_queues;
2032 static int be_tx_cqs_create(struct be_adapter *adapter)
2034 struct be_queue_info *cq, *eq;
2036 struct be_tx_obj *txo;
2039 adapter->num_tx_qs = be_num_txqs_want(adapter);
2040 if (adapter->num_tx_qs != MAX_TX_QS) {
2042 netif_set_real_num_tx_queues(adapter->netdev,
2043 adapter->num_tx_qs);
2047 for_all_tx_queues(adapter, txo, i) {
2049 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2050 sizeof(struct be_eth_tx_compl));
2054 /* If num_evt_qs is less than num_tx_qs, then more than
2055 * one txq share an eq
2057 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2058 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2065 static int be_tx_qs_create(struct be_adapter *adapter)
2067 struct be_tx_obj *txo;
2070 for_all_tx_queues(adapter, txo, i) {
2071 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2072 sizeof(struct be_eth_wrb));
2076 status = be_cmd_txq_create(adapter, txo);
2081 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2082 adapter->num_tx_qs);
2086 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2088 struct be_queue_info *q;
2089 struct be_rx_obj *rxo;
2092 for_all_rx_queues(adapter, rxo, i) {
2095 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2096 be_queue_free(adapter, q);
2100 static int be_rx_cqs_create(struct be_adapter *adapter)
2102 struct be_queue_info *eq, *cq;
2103 struct be_rx_obj *rxo;
2106 /* We'll create as many RSS rings as there are irqs.
2107 * But when there's only one irq there's no use creating RSS rings
2109 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
2110 num_irqs(adapter) + 1 : 1;
2111 if (adapter->num_rx_qs != MAX_RX_QS) {
2113 netif_set_real_num_rx_queues(adapter->netdev,
2114 adapter->num_rx_qs);
2118 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2119 for_all_rx_queues(adapter, rxo, i) {
2120 rxo->adapter = adapter;
2122 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2123 sizeof(struct be_eth_rx_compl));
2127 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2128 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2133 dev_info(&adapter->pdev->dev,
2134 "created %d RSS queue(s) and 1 default RX queue\n",
2135 adapter->num_rx_qs - 1);
2139 static irqreturn_t be_intx(int irq, void *dev)
2141 struct be_eq_obj *eqo = dev;
2142 struct be_adapter *adapter = eqo->adapter;
2145 /* IRQ is not expected when NAPI is scheduled as the EQ
2146 * will not be armed.
2147 * But, this can happen on Lancer INTx where it takes
2148 * a while to de-assert INTx or in BE2 where occasionaly
2149 * an interrupt may be raised even when EQ is unarmed.
2150 * If NAPI is already scheduled, then counting & notifying
2151 * events will orphan them.
2153 if (napi_schedule_prep(&eqo->napi)) {
2154 num_evts = events_get(eqo);
2155 __napi_schedule(&eqo->napi);
2157 eqo->spurious_intr = 0;
2159 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2161 /* Return IRQ_HANDLED only for the the first spurious intr
2162 * after a valid intr to stop the kernel from branding
2163 * this irq as a bad one!
2165 if (num_evts || eqo->spurious_intr++ == 0)
2171 static irqreturn_t be_msix(int irq, void *dev)
2173 struct be_eq_obj *eqo = dev;
2175 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2176 napi_schedule(&eqo->napi);
2180 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2182 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2185 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2188 struct be_adapter *adapter = rxo->adapter;
2189 struct be_queue_info *rx_cq = &rxo->cq;
2190 struct be_rx_compl_info *rxcp;
2193 for (work_done = 0; work_done < budget; work_done++) {
2194 rxcp = be_rx_compl_get(rxo);
2198 /* Is it a flush compl that has no data */
2199 if (unlikely(rxcp->num_rcvd == 0))
2202 /* Discard compl with partial DMA Lancer B0 */
2203 if (unlikely(!rxcp->pkt_size)) {
2204 be_rx_compl_discard(rxo, rxcp);
2208 /* On BE drop pkts that arrive due to imperfect filtering in
2209 * promiscuous mode on some skews
2211 if (unlikely(rxcp->port != adapter->port_num &&
2212 !lancer_chip(adapter))) {
2213 be_rx_compl_discard(rxo, rxcp);
2218 be_rx_compl_process_gro(rxo, napi, rxcp);
2220 be_rx_compl_process(rxo, rxcp);
2222 be_rx_stats_update(rxo, rxcp);
2226 be_cq_notify(adapter, rx_cq->id, true, work_done);
2228 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2229 be_post_rx_frags(rxo, GFP_ATOMIC);
2235 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2236 int budget, int idx)
2238 struct be_eth_tx_compl *txcp;
2239 int num_wrbs = 0, work_done;
2241 for (work_done = 0; work_done < budget; work_done++) {
2242 txcp = be_tx_compl_get(&txo->cq);
2245 num_wrbs += be_tx_compl_process(adapter, txo,
2246 AMAP_GET_BITS(struct amap_eth_tx_compl,
2251 be_cq_notify(adapter, txo->cq.id, true, work_done);
2252 atomic_sub(num_wrbs, &txo->q.used);
2254 /* As Tx wrbs have been freed up, wake up netdev queue
2255 * if it was stopped due to lack of tx wrbs. */
2256 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2257 atomic_read(&txo->q.used) < txo->q.len / 2) {
2258 netif_wake_subqueue(adapter->netdev, idx);
2261 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2262 tx_stats(txo)->tx_compl += work_done;
2263 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2265 return (work_done < budget); /* Done */
2268 int be_poll(struct napi_struct *napi, int budget)
2270 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2271 struct be_adapter *adapter = eqo->adapter;
2272 int max_work = 0, work, i, num_evts;
2275 num_evts = events_get(eqo);
2277 /* Process all TXQs serviced by this EQ */
2278 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2279 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2285 /* This loop will iterate twice for EQ0 in which
2286 * completions of the last RXQ (default one) are also processed
2287 * For other EQs the loop iterates only once
2289 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2290 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2291 max_work = max(work, max_work);
2294 if (is_mcc_eqo(eqo))
2295 be_process_mcc(adapter);
2297 if (max_work < budget) {
2298 napi_complete(napi);
2299 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2301 /* As we'll continue in polling mode, count and clear events */
2302 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2307 void be_detect_error(struct be_adapter *adapter)
2309 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2310 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2313 if (be_hw_error(adapter))
2316 if (lancer_chip(adapter)) {
2317 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2318 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2319 sliport_err1 = ioread32(adapter->db +
2320 SLIPORT_ERROR1_OFFSET);
2321 sliport_err2 = ioread32(adapter->db +
2322 SLIPORT_ERROR2_OFFSET);
2325 pci_read_config_dword(adapter->pdev,
2326 PCICFG_UE_STATUS_LOW, &ue_lo);
2327 pci_read_config_dword(adapter->pdev,
2328 PCICFG_UE_STATUS_HIGH, &ue_hi);
2329 pci_read_config_dword(adapter->pdev,
2330 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2331 pci_read_config_dword(adapter->pdev,
2332 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2334 ue_lo = (ue_lo & ~ue_lo_mask);
2335 ue_hi = (ue_hi & ~ue_hi_mask);
2338 /* On certain platforms BE hardware can indicate spurious UEs.
2339 * Allow the h/w to stop working completely in case of a real UE.
2340 * Hence not setting the hw_error for UE detection.
2342 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2343 adapter->hw_error = true;
2344 dev_err(&adapter->pdev->dev,
2345 "Error detected in the card\n");
2348 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2349 dev_err(&adapter->pdev->dev,
2350 "ERR: sliport status 0x%x\n", sliport_status);
2351 dev_err(&adapter->pdev->dev,
2352 "ERR: sliport error1 0x%x\n", sliport_err1);
2353 dev_err(&adapter->pdev->dev,
2354 "ERR: sliport error2 0x%x\n", sliport_err2);
2358 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2360 dev_err(&adapter->pdev->dev,
2361 "UE: %s bit set\n", ue_status_low_desc[i]);
2366 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2368 dev_err(&adapter->pdev->dev,
2369 "UE: %s bit set\n", ue_status_hi_desc[i]);
2375 static void be_msix_disable(struct be_adapter *adapter)
2377 if (msix_enabled(adapter)) {
2378 pci_disable_msix(adapter->pdev);
2379 adapter->num_msix_vec = 0;
2383 static uint be_num_rss_want(struct be_adapter *adapter)
2387 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2388 (lancer_chip(adapter) ||
2389 (!sriov_want(adapter) && be_physfn(adapter)))) {
2390 num = adapter->max_rss_queues;
2391 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2396 static int be_msix_enable(struct be_adapter *adapter)
2398 #define BE_MIN_MSIX_VECTORS 1
2399 int i, status, num_vec, num_roce_vec = 0;
2400 struct device *dev = &adapter->pdev->dev;
2402 /* If RSS queues are not used, need a vec for default RX Q */
2403 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2404 if (be_roce_supported(adapter)) {
2405 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2406 (num_online_cpus() + 1));
2407 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2408 num_vec += num_roce_vec;
2409 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2411 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2413 for (i = 0; i < num_vec; i++)
2414 adapter->msix_entries[i].entry = i;
2416 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2419 } else if (status >= BE_MIN_MSIX_VECTORS) {
2421 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2427 dev_warn(dev, "MSIx enable failed\n");
2428 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2429 if (!be_physfn(adapter))
2433 if (be_roce_supported(adapter)) {
2434 if (num_vec > num_roce_vec) {
2435 adapter->num_msix_vec = num_vec - num_roce_vec;
2436 adapter->num_msix_roce_vec =
2437 num_vec - adapter->num_msix_vec;
2439 adapter->num_msix_vec = num_vec;
2440 adapter->num_msix_roce_vec = 0;
2443 adapter->num_msix_vec = num_vec;
2444 dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
2448 static inline int be_msix_vec_get(struct be_adapter *adapter,
2449 struct be_eq_obj *eqo)
2451 return adapter->msix_entries[eqo->idx].vector;
2454 static int be_msix_register(struct be_adapter *adapter)
2456 struct net_device *netdev = adapter->netdev;
2457 struct be_eq_obj *eqo;
2460 for_all_evt_queues(adapter, eqo, i) {
2461 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2462 vec = be_msix_vec_get(adapter, eqo);
2463 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2470 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2471 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2472 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2474 be_msix_disable(adapter);
2478 static int be_irq_register(struct be_adapter *adapter)
2480 struct net_device *netdev = adapter->netdev;
2483 if (msix_enabled(adapter)) {
2484 status = be_msix_register(adapter);
2487 /* INTx is not supported for VF */
2488 if (!be_physfn(adapter))
2492 /* INTx: only the first EQ is used */
2493 netdev->irq = adapter->pdev->irq;
2494 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2495 &adapter->eq_obj[0]);
2497 dev_err(&adapter->pdev->dev,
2498 "INTx request IRQ failed - err %d\n", status);
2502 adapter->isr_registered = true;
2506 static void be_irq_unregister(struct be_adapter *adapter)
2508 struct net_device *netdev = adapter->netdev;
2509 struct be_eq_obj *eqo;
2512 if (!adapter->isr_registered)
2516 if (!msix_enabled(adapter)) {
2517 free_irq(netdev->irq, &adapter->eq_obj[0]);
2522 for_all_evt_queues(adapter, eqo, i)
2523 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2526 adapter->isr_registered = false;
2529 static void be_rx_qs_destroy(struct be_adapter *adapter)
2531 struct be_queue_info *q;
2532 struct be_rx_obj *rxo;
2535 for_all_rx_queues(adapter, rxo, i) {
2538 be_cmd_rxq_destroy(adapter, q);
2539 be_rx_cq_clean(rxo);
2541 be_queue_free(adapter, q);
2545 static int be_close(struct net_device *netdev)
2547 struct be_adapter *adapter = netdev_priv(netdev);
2548 struct be_eq_obj *eqo;
2551 be_roce_dev_close(adapter);
2553 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2554 for_all_evt_queues(adapter, eqo, i)
2555 napi_disable(&eqo->napi);
2556 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2559 be_async_mcc_disable(adapter);
2561 /* Wait for all pending tx completions to arrive so that
2562 * all tx skbs are freed.
2564 netif_tx_disable(netdev);
2565 be_tx_compl_clean(adapter);
2567 be_rx_qs_destroy(adapter);
2569 for_all_evt_queues(adapter, eqo, i) {
2570 if (msix_enabled(adapter))
2571 synchronize_irq(be_msix_vec_get(adapter, eqo));
2573 synchronize_irq(netdev->irq);
2577 be_irq_unregister(adapter);
2582 static int be_rx_qs_create(struct be_adapter *adapter)
2584 struct be_rx_obj *rxo;
2588 for_all_rx_queues(adapter, rxo, i) {
2589 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2590 sizeof(struct be_eth_rx_d));
2595 /* The FW would like the default RXQ to be created first */
2596 rxo = default_rxo(adapter);
2597 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2598 adapter->if_handle, false, &rxo->rss_id);
2602 for_all_rss_queues(adapter, rxo, i) {
2603 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2604 rx_frag_size, adapter->if_handle,
2605 true, &rxo->rss_id);
2610 if (be_multi_rxq(adapter)) {
2611 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2612 for_all_rss_queues(adapter, rxo, i) {
2615 rsstable[j + i] = rxo->rss_id;
2618 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2619 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2621 if (!BEx_chip(adapter))
2622 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2623 RSS_ENABLE_UDP_IPV6;
2625 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2628 adapter->rss_flags = 0;
2633 /* First time posting */
2634 for_all_rx_queues(adapter, rxo, i)
2635 be_post_rx_frags(rxo, GFP_KERNEL);
2639 static int be_open(struct net_device *netdev)
2641 struct be_adapter *adapter = netdev_priv(netdev);
2642 struct be_eq_obj *eqo;
2643 struct be_rx_obj *rxo;
2644 struct be_tx_obj *txo;
2648 status = be_rx_qs_create(adapter);
2652 status = be_irq_register(adapter);
2656 for_all_rx_queues(adapter, rxo, i)
2657 be_cq_notify(adapter, rxo->cq.id, true, 0);
2659 for_all_tx_queues(adapter, txo, i)
2660 be_cq_notify(adapter, txo->cq.id, true, 0);
2662 be_async_mcc_enable(adapter);
2664 for_all_evt_queues(adapter, eqo, i) {
2665 napi_enable(&eqo->napi);
2666 be_eq_notify(adapter, eqo->q.id, true, true, 0);
2668 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2670 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2672 be_link_status_update(adapter, link_status);
2674 netif_tx_start_all_queues(netdev);
2675 be_roce_dev_open(adapter);
2678 be_close(adapter->netdev);
2682 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2684 struct be_dma_mem cmd;
2688 memset(mac, 0, ETH_ALEN);
2690 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2691 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2692 GFP_KERNEL | __GFP_ZERO);
2697 status = pci_write_config_dword(adapter->pdev,
2698 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2700 dev_err(&adapter->pdev->dev,
2701 "Could not enable Wake-on-lan\n");
2702 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2706 status = be_cmd_enable_magic_wol(adapter,
2707 adapter->netdev->dev_addr, &cmd);
2708 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2709 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2711 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2712 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2713 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2716 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2721 * Generate a seed MAC address from the PF MAC Address using jhash.
2722 * MAC Address for VFs are assigned incrementally starting from the seed.
2723 * These addresses are programmed in the ASIC by the PF and the VF driver
2724 * queries for the MAC address during its probe.
2726 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2731 struct be_vf_cfg *vf_cfg;
2733 be_vf_eth_addr_generate(adapter, mac);
2735 for_all_vfs(adapter, vf_cfg, vf) {
2736 if (lancer_chip(adapter)) {
2737 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2739 status = be_cmd_pmac_add(adapter, mac,
2741 &vf_cfg->pmac_id, vf + 1);
2745 dev_err(&adapter->pdev->dev,
2746 "Mac address assignment failed for VF %d\n", vf);
2748 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2755 static int be_vfs_mac_query(struct be_adapter *adapter)
2759 struct be_vf_cfg *vf_cfg;
2762 for_all_vfs(adapter, vf_cfg, vf) {
2763 be_cmd_get_mac_from_list(adapter, mac, &active,
2764 &vf_cfg->pmac_id, 0);
2766 status = be_cmd_mac_addr_query(adapter, mac, false,
2767 vf_cfg->if_handle, 0);
2770 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2775 static void be_vf_clear(struct be_adapter *adapter)
2777 struct be_vf_cfg *vf_cfg;
2780 if (be_find_vfs(adapter, ASSIGNED)) {
2781 dev_warn(&adapter->pdev->dev,
2782 "VFs are assigned to VMs: not disabling VFs\n");
2786 pci_disable_sriov(adapter->pdev);
2788 for_all_vfs(adapter, vf_cfg, vf) {
2789 if (lancer_chip(adapter))
2790 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2792 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2793 vf_cfg->pmac_id, vf + 1);
2795 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2798 kfree(adapter->vf_cfg);
2799 adapter->num_vfs = 0;
2802 static int be_clear(struct be_adapter *adapter)
2806 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2807 cancel_delayed_work_sync(&adapter->work);
2808 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2811 if (sriov_enabled(adapter))
2812 be_vf_clear(adapter);
2814 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2815 be_cmd_pmac_del(adapter, adapter->if_handle,
2816 adapter->pmac_id[i], 0);
2818 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2820 be_mcc_queues_destroy(adapter);
2821 be_rx_cqs_destroy(adapter);
2822 be_tx_queues_destroy(adapter);
2823 be_evt_queues_destroy(adapter);
2825 kfree(adapter->pmac_id);
2826 adapter->pmac_id = NULL;
2828 be_msix_disable(adapter);
2832 static int be_vfs_if_create(struct be_adapter *adapter)
2834 struct be_vf_cfg *vf_cfg;
2835 u32 cap_flags, en_flags, vf;
2838 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2839 BE_IF_FLAGS_MULTICAST;
2841 for_all_vfs(adapter, vf_cfg, vf) {
2842 if (!BE3_chip(adapter))
2843 be_cmd_get_profile_config(adapter, &cap_flags,
2846 /* If a FW profile exists, then cap_flags are updated */
2847 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2848 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2849 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2850 &vf_cfg->if_handle, vf + 1);
2858 static int be_vf_setup_init(struct be_adapter *adapter)
2860 struct be_vf_cfg *vf_cfg;
2863 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2865 if (!adapter->vf_cfg)
2868 for_all_vfs(adapter, vf_cfg, vf) {
2869 vf_cfg->if_handle = -1;
2870 vf_cfg->pmac_id = -1;
2875 static int be_vf_setup(struct be_adapter *adapter)
2877 struct be_vf_cfg *vf_cfg;
2878 u16 def_vlan, lnk_speed;
2879 int status, old_vfs, vf;
2880 struct device *dev = &adapter->pdev->dev;
2882 old_vfs = be_find_vfs(adapter, ENABLED);
2884 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2885 if (old_vfs != num_vfs)
2886 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2887 adapter->num_vfs = old_vfs;
2889 if (num_vfs > adapter->dev_num_vfs)
2890 dev_info(dev, "Device supports %d VFs and not %d\n",
2891 adapter->dev_num_vfs, num_vfs);
2892 adapter->num_vfs = min_t(u16, num_vfs, adapter->dev_num_vfs);
2893 if (!adapter->num_vfs)
2897 status = be_vf_setup_init(adapter);
2902 for_all_vfs(adapter, vf_cfg, vf) {
2903 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2908 status = be_vfs_if_create(adapter);
2914 status = be_vfs_mac_query(adapter);
2918 status = be_vf_eth_addr_config(adapter);
2923 for_all_vfs(adapter, vf_cfg, vf) {
2924 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2925 * Allow full available bandwidth
2927 if (BE3_chip(adapter) && !old_vfs)
2928 be_cmd_set_qos(adapter, 1000, vf+1);
2930 status = be_cmd_link_status_query(adapter, &lnk_speed,
2933 vf_cfg->tx_rate = lnk_speed;
2935 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2936 vf + 1, vf_cfg->if_handle);
2939 vf_cfg->def_vid = def_vlan;
2941 be_cmd_enable_vf(adapter, vf + 1);
2945 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
2947 dev_err(dev, "SRIOV enable failed\n");
2948 adapter->num_vfs = 0;
2954 dev_err(dev, "VF setup failed\n");
2955 be_vf_clear(adapter);
2959 static void be_setup_init(struct be_adapter *adapter)
2961 adapter->vlan_prio_bmap = 0xff;
2962 adapter->phy.link_speed = -1;
2963 adapter->if_handle = -1;
2964 adapter->be3_native = false;
2965 adapter->promiscuous = false;
2966 if (be_physfn(adapter))
2967 adapter->cmd_privileges = MAX_PRIVILEGES;
2969 adapter->cmd_privileges = MIN_PRIVILEGES;
2972 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2973 bool *active_mac, u32 *pmac_id)
2977 if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2978 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2979 if (!lancer_chip(adapter) && !be_physfn(adapter))
2982 *active_mac = false;
2987 if (lancer_chip(adapter)) {
2988 status = be_cmd_get_mac_from_list(adapter, mac,
2989 active_mac, pmac_id, 0);
2991 status = be_cmd_mac_addr_query(adapter, mac, false,
2992 if_handle, *pmac_id);
2994 } else if (be_physfn(adapter)) {
2995 /* For BE3, for PF get permanent MAC */
2996 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
2997 *active_mac = false;
2999 /* For BE3, for VF get soft MAC assigned by PF*/
3000 status = be_cmd_mac_addr_query(adapter, mac, false,
3007 static void be_get_resources(struct be_adapter *adapter)
3011 bool profile_present = false;
3014 if (!BEx_chip(adapter)) {
3015 status = be_cmd_get_func_config(adapter);
3017 profile_present = true;
3018 } else if (BE3_chip(adapter) && be_physfn(adapter)) {
3019 be_cmd_get_profile_config(adapter, NULL, &txq_count, 0);
3022 if (profile_present) {
3023 /* Sanity fixes for Lancer */
3024 adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
3026 adapter->max_vlans = min_t(u16, adapter->max_vlans,
3027 BE_NUM_VLANS_SUPPORTED);
3028 adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
3030 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
3032 adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
3034 adapter->max_event_queues = min_t(u16,
3035 adapter->max_event_queues,
3038 if (adapter->max_rss_queues &&
3039 adapter->max_rss_queues == adapter->max_rx_queues)
3040 adapter->max_rss_queues -= 1;
3042 if (adapter->max_event_queues < adapter->max_rss_queues)
3043 adapter->max_rss_queues = adapter->max_event_queues;
3046 if (be_physfn(adapter))
3047 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3049 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3051 if (adapter->function_mode & FLEX10_MODE)
3052 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3054 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3056 adapter->max_mcast_mac = BE_MAX_MC;
3057 adapter->max_tx_queues = txq_count ? txq_count : MAX_TX_QS;
3058 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
3060 adapter->max_rss_queues = (adapter->be3_native) ?
3061 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3062 adapter->max_event_queues = BE3_MAX_RSS_QS;
3064 adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
3065 BE_IF_FLAGS_BROADCAST |
3066 BE_IF_FLAGS_MULTICAST |
3067 BE_IF_FLAGS_PASS_L3L4_ERRORS |
3068 BE_IF_FLAGS_MCAST_PROMISCUOUS |
3069 BE_IF_FLAGS_VLAN_PROMISCUOUS |
3070 BE_IF_FLAGS_PROMISCUOUS;
3072 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3073 adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
3076 pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
3078 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
3080 if (BE3_chip(adapter))
3081 dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
3082 adapter->dev_num_vfs = dev_num_vfs;
3086 /* Routine to query per function resource limits */
3087 static int be_get_config(struct be_adapter *adapter)
3091 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3092 &adapter->function_mode,
3093 &adapter->function_caps,
3094 &adapter->asic_rev);
3098 be_get_resources(adapter);
3100 /* primary mac needs 1 pmac entry */
3101 adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3102 sizeof(u32), GFP_KERNEL);
3103 if (!adapter->pmac_id) {
3112 static int be_setup(struct be_adapter *adapter)
3114 struct device *dev = &adapter->pdev->dev;
3121 be_setup_init(adapter);
3123 if (!lancer_chip(adapter))
3124 be_cmd_req_native_mode(adapter);
3126 status = be_get_config(adapter);
3130 status = be_msix_enable(adapter);
3134 status = be_evt_queues_create(adapter);
3138 status = be_tx_cqs_create(adapter);
3142 status = be_rx_cqs_create(adapter);
3146 status = be_mcc_queues_create(adapter);
3150 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3151 /* In UMC mode FW does not return right privileges.
3152 * Override with correct privilege equivalent to PF.
3154 if (be_is_mc(adapter))
3155 adapter->cmd_privileges = MAX_PRIVILEGES;
3157 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3158 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3160 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3161 en_flags |= BE_IF_FLAGS_RSS;
3163 en_flags = en_flags & adapter->if_cap_flags;
3165 status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
3166 &adapter->if_handle, 0);
3170 memset(mac, 0, ETH_ALEN);
3172 status = be_get_mac_addr(adapter, mac, adapter->if_handle,
3173 &active_mac, &adapter->pmac_id[0]);
3178 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3179 &adapter->pmac_id[0], 0);
3184 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3185 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3186 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3189 status = be_tx_qs_create(adapter);
3193 be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
3195 if (adapter->vlans_added)
3196 be_vid_config(adapter);
3198 be_set_rx_mode(adapter->netdev);
3200 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3202 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3203 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3206 if (be_physfn(adapter)) {
3207 if (adapter->dev_num_vfs)
3208 be_vf_setup(adapter);
3210 dev_warn(dev, "device doesn't support SRIOV\n");
3213 status = be_cmd_get_phy_info(adapter);
3214 if (!status && be_pause_supported(adapter))
3215 adapter->phy.fc_autoneg = 1;
3217 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3218 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3225 #ifdef CONFIG_NET_POLL_CONTROLLER
3226 static void be_netpoll(struct net_device *netdev)
3228 struct be_adapter *adapter = netdev_priv(netdev);
3229 struct be_eq_obj *eqo;
3232 for_all_evt_queues(adapter, eqo, i) {
3233 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3234 napi_schedule(&eqo->napi);
3241 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3242 char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3244 static bool be_flash_redboot(struct be_adapter *adapter,
3245 const u8 *p, u32 img_start, int image_size,
3252 crc_offset = hdr_size + img_start + image_size - 4;
3256 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3259 dev_err(&adapter->pdev->dev,
3260 "could not get crc from flash, not flashing redboot\n");
3264 /*update redboot only if crc does not match*/
3265 if (!memcmp(flashed_crc, p, 4))
3271 static bool phy_flashing_required(struct be_adapter *adapter)
3273 return (adapter->phy.phy_type == TN_8022 &&
3274 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3277 static bool is_comp_in_ufi(struct be_adapter *adapter,
3278 struct flash_section_info *fsec, int type)
3280 int i = 0, img_type = 0;
3281 struct flash_section_info_g2 *fsec_g2 = NULL;
3283 if (BE2_chip(adapter))
3284 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3286 for (i = 0; i < MAX_FLASH_COMP; i++) {
3288 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3290 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3292 if (img_type == type)
3299 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3301 const struct firmware *fw)
3303 struct flash_section_info *fsec = NULL;
3304 const u8 *p = fw->data;
3307 while (p < (fw->data + fw->size)) {
3308 fsec = (struct flash_section_info *)p;
3309 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3316 static int be_flash(struct be_adapter *adapter, const u8 *img,
3317 struct be_dma_mem *flash_cmd, int optype, int img_size)
3319 u32 total_bytes = 0, flash_op, num_bytes = 0;
3321 struct be_cmd_write_flashrom *req = flash_cmd->va;
3323 total_bytes = img_size;
3324 while (total_bytes) {
3325 num_bytes = min_t(u32, 32*1024, total_bytes);
3327 total_bytes -= num_bytes;
3330 if (optype == OPTYPE_PHY_FW)
3331 flash_op = FLASHROM_OPER_PHY_FLASH;
3333 flash_op = FLASHROM_OPER_FLASH;
3335 if (optype == OPTYPE_PHY_FW)
3336 flash_op = FLASHROM_OPER_PHY_SAVE;
3338 flash_op = FLASHROM_OPER_SAVE;
3341 memcpy(req->data_buf, img, num_bytes);
3343 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3344 flash_op, num_bytes);
3346 if (status == ILLEGAL_IOCTL_REQ &&
3347 optype == OPTYPE_PHY_FW)
3349 dev_err(&adapter->pdev->dev,
3350 "cmd to write to flash rom failed.\n");
3357 /* For BE2, BE3 and BE3-R */
3358 static int be_flash_BEx(struct be_adapter *adapter,
3359 const struct firmware *fw,
3360 struct be_dma_mem *flash_cmd,
3364 int status = 0, i, filehdr_size = 0;
3365 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3366 const u8 *p = fw->data;
3367 const struct flash_comp *pflashcomp;
3368 int num_comp, redboot;
3369 struct flash_section_info *fsec = NULL;
3371 struct flash_comp gen3_flash_types[] = {
3372 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3373 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3374 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3375 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3376 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3377 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3378 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3379 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3380 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3381 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3382 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3383 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3384 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3385 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3386 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3387 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3388 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3389 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3390 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3391 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3394 struct flash_comp gen2_flash_types[] = {
3395 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3396 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3397 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3398 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3399 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3400 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3401 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3402 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3403 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3404 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3405 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3406 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3407 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3408 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3409 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3410 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3413 if (BE3_chip(adapter)) {
3414 pflashcomp = gen3_flash_types;
3415 filehdr_size = sizeof(struct flash_file_hdr_g3);
3416 num_comp = ARRAY_SIZE(gen3_flash_types);
3418 pflashcomp = gen2_flash_types;
3419 filehdr_size = sizeof(struct flash_file_hdr_g2);
3420 num_comp = ARRAY_SIZE(gen2_flash_types);
3423 /* Get flash section info*/
3424 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3426 dev_err(&adapter->pdev->dev,
3427 "Invalid Cookie. UFI corrupted ?\n");
3430 for (i = 0; i < num_comp; i++) {
3431 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3434 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3435 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3438 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3439 !phy_flashing_required(adapter))
3442 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3443 redboot = be_flash_redboot(adapter, fw->data,
3444 pflashcomp[i].offset, pflashcomp[i].size,
3445 filehdr_size + img_hdrs_size);
3451 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3452 if (p + pflashcomp[i].size > fw->data + fw->size)
3455 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3456 pflashcomp[i].size);
3458 dev_err(&adapter->pdev->dev,
3459 "Flashing section type %d failed.\n",
3460 pflashcomp[i].img_type);
3467 static int be_flash_skyhawk(struct be_adapter *adapter,
3468 const struct firmware *fw,
3469 struct be_dma_mem *flash_cmd, int num_of_images)
3471 int status = 0, i, filehdr_size = 0;
3472 int img_offset, img_size, img_optype, redboot;
3473 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3474 const u8 *p = fw->data;
3475 struct flash_section_info *fsec = NULL;
3477 filehdr_size = sizeof(struct flash_file_hdr_g3);
3478 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3480 dev_err(&adapter->pdev->dev,
3481 "Invalid Cookie. UFI corrupted ?\n");
3485 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3486 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3487 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3489 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3490 case IMAGE_FIRMWARE_iSCSI:
3491 img_optype = OPTYPE_ISCSI_ACTIVE;
3493 case IMAGE_BOOT_CODE:
3494 img_optype = OPTYPE_REDBOOT;
3496 case IMAGE_OPTION_ROM_ISCSI:
3497 img_optype = OPTYPE_BIOS;
3499 case IMAGE_OPTION_ROM_PXE:
3500 img_optype = OPTYPE_PXE_BIOS;
3502 case IMAGE_OPTION_ROM_FCoE:
3503 img_optype = OPTYPE_FCOE_BIOS;
3505 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3506 img_optype = OPTYPE_ISCSI_BACKUP;
3509 img_optype = OPTYPE_NCSI_FW;
3515 if (img_optype == OPTYPE_REDBOOT) {
3516 redboot = be_flash_redboot(adapter, fw->data,
3517 img_offset, img_size,
3518 filehdr_size + img_hdrs_size);
3524 p += filehdr_size + img_offset + img_hdrs_size;
3525 if (p + img_size > fw->data + fw->size)
3528 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3530 dev_err(&adapter->pdev->dev,
3531 "Flashing section type %d failed.\n",
3532 fsec->fsec_entry[i].type);
3539 static int lancer_wait_idle(struct be_adapter *adapter)
3541 #define SLIPORT_IDLE_TIMEOUT 30
3545 for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3546 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3547 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3553 if (i == SLIPORT_IDLE_TIMEOUT)
3559 static int lancer_fw_reset(struct be_adapter *adapter)
3563 status = lancer_wait_idle(adapter);
3567 iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3568 PHYSDEV_CONTROL_OFFSET);
3573 static int lancer_fw_download(struct be_adapter *adapter,
3574 const struct firmware *fw)
3576 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3577 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3578 struct be_dma_mem flash_cmd;
3579 const u8 *data_ptr = NULL;
3580 u8 *dest_image_ptr = NULL;
3581 size_t image_size = 0;
3583 u32 data_written = 0;
3589 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3590 dev_err(&adapter->pdev->dev,
3591 "FW Image not properly aligned. "
3592 "Length must be 4 byte aligned.\n");
3594 goto lancer_fw_exit;
3597 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3598 + LANCER_FW_DOWNLOAD_CHUNK;
3599 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3600 &flash_cmd.dma, GFP_KERNEL);
3601 if (!flash_cmd.va) {
3603 goto lancer_fw_exit;
3606 dest_image_ptr = flash_cmd.va +
3607 sizeof(struct lancer_cmd_req_write_object);
3608 image_size = fw->size;
3609 data_ptr = fw->data;
3611 while (image_size) {
3612 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3614 /* Copy the image chunk content. */
3615 memcpy(dest_image_ptr, data_ptr, chunk_size);
3617 status = lancer_cmd_write_object(adapter, &flash_cmd,
3619 LANCER_FW_DOWNLOAD_LOCATION,
3620 &data_written, &change_status,
3625 offset += data_written;
3626 data_ptr += data_written;
3627 image_size -= data_written;
3631 /* Commit the FW written */
3632 status = lancer_cmd_write_object(adapter, &flash_cmd,
3634 LANCER_FW_DOWNLOAD_LOCATION,
3635 &data_written, &change_status,
3639 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3642 dev_err(&adapter->pdev->dev,
3643 "Firmware load error. "
3644 "Status code: 0x%x Additional Status: 0x%x\n",
3645 status, add_status);
3646 goto lancer_fw_exit;
3649 if (change_status == LANCER_FW_RESET_NEEDED) {
3650 status = lancer_fw_reset(adapter);
3652 dev_err(&adapter->pdev->dev,
3653 "Adapter busy for FW reset.\n"
3654 "New FW will not be active.\n");
3655 goto lancer_fw_exit;
3657 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3658 dev_err(&adapter->pdev->dev,
3659 "System reboot required for new FW"
3663 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3670 #define UFI_TYPE3R 10
3672 static int be_get_ufi_type(struct be_adapter *adapter,
3673 struct flash_file_hdr_g3 *fhdr)
3676 goto be_get_ufi_exit;
3678 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3680 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3681 if (fhdr->asic_type_rev == 0x10)
3685 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3689 dev_err(&adapter->pdev->dev,
3690 "UFI and Interface are not compatible for flashing\n");
3694 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3696 struct flash_file_hdr_g3 *fhdr3;
3697 struct image_hdr *img_hdr_ptr = NULL;
3698 struct be_dma_mem flash_cmd;
3700 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3702 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3703 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3704 &flash_cmd.dma, GFP_KERNEL);
3705 if (!flash_cmd.va) {
3711 fhdr3 = (struct flash_file_hdr_g3 *)p;
3713 ufi_type = be_get_ufi_type(adapter, fhdr3);
3715 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3716 for (i = 0; i < num_imgs; i++) {
3717 img_hdr_ptr = (struct image_hdr *)(fw->data +
3718 (sizeof(struct flash_file_hdr_g3) +
3719 i * sizeof(struct image_hdr)));
3720 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3723 status = be_flash_skyhawk(adapter, fw,
3724 &flash_cmd, num_imgs);
3727 status = be_flash_BEx(adapter, fw, &flash_cmd,
3731 /* Do not flash this ufi on BE3-R cards */
3732 if (adapter->asic_rev < 0x10)
3733 status = be_flash_BEx(adapter, fw,
3738 dev_err(&adapter->pdev->dev,
3739 "Can't load BE3 UFI on BE3R\n");
3745 if (ufi_type == UFI_TYPE2)
3746 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3747 else if (ufi_type == -1)
3750 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3753 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3757 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3763 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3765 const struct firmware *fw;
3768 if (!netif_running(adapter->netdev)) {
3769 dev_err(&adapter->pdev->dev,
3770 "Firmware load not allowed (interface is down)\n");
3774 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3778 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3780 if (lancer_chip(adapter))
3781 status = lancer_fw_download(adapter, fw);
3783 status = be_fw_download(adapter, fw);
3786 release_firmware(fw);
3790 static const struct net_device_ops be_netdev_ops = {
3791 .ndo_open = be_open,
3792 .ndo_stop = be_close,
3793 .ndo_start_xmit = be_xmit,
3794 .ndo_set_rx_mode = be_set_rx_mode,
3795 .ndo_set_mac_address = be_mac_addr_set,
3796 .ndo_change_mtu = be_change_mtu,
3797 .ndo_get_stats64 = be_get_stats64,
3798 .ndo_validate_addr = eth_validate_addr,
3799 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3800 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3801 .ndo_set_vf_mac = be_set_vf_mac,
3802 .ndo_set_vf_vlan = be_set_vf_vlan,
3803 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3804 .ndo_get_vf_config = be_get_vf_config,
3805 #ifdef CONFIG_NET_POLL_CONTROLLER
3806 .ndo_poll_controller = be_netpoll,
3810 static void be_netdev_init(struct net_device *netdev)
3812 struct be_adapter *adapter = netdev_priv(netdev);
3813 struct be_eq_obj *eqo;
3816 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3817 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3818 NETIF_F_HW_VLAN_CTAG_TX;
3819 if (be_multi_rxq(adapter))
3820 netdev->hw_features |= NETIF_F_RXHASH;
3822 netdev->features |= netdev->hw_features |
3823 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3825 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3826 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3828 netdev->priv_flags |= IFF_UNICAST_FLT;
3830 netdev->flags |= IFF_MULTICAST;
3832 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3834 netdev->netdev_ops = &be_netdev_ops;
3836 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3838 for_all_evt_queues(adapter, eqo, i)
3839 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3842 static void be_unmap_pci_bars(struct be_adapter *adapter)
3845 pci_iounmap(adapter->pdev, adapter->csr);
3847 pci_iounmap(adapter->pdev, adapter->db);
3850 static int db_bar(struct be_adapter *adapter)
3852 if (lancer_chip(adapter) || !be_physfn(adapter))
3858 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3860 if (skyhawk_chip(adapter)) {
3861 adapter->roce_db.size = 4096;
3862 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3864 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3870 static int be_map_pci_bars(struct be_adapter *adapter)
3875 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3876 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3877 SLI_INTF_IF_TYPE_SHIFT;
3879 if (BEx_chip(adapter) && be_physfn(adapter)) {
3880 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3881 if (adapter->csr == NULL)
3885 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3890 be_roce_map_pci_bars(adapter);
3894 be_unmap_pci_bars(adapter);
3898 static void be_ctrl_cleanup(struct be_adapter *adapter)
3900 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3902 be_unmap_pci_bars(adapter);
3905 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3908 mem = &adapter->rx_filter;
3910 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3914 static int be_ctrl_init(struct be_adapter *adapter)
3916 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3917 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3918 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3922 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3923 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3924 SLI_INTF_FAMILY_SHIFT;
3925 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3927 status = be_map_pci_bars(adapter);
3931 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3932 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3933 mbox_mem_alloc->size,
3934 &mbox_mem_alloc->dma,
3936 if (!mbox_mem_alloc->va) {
3938 goto unmap_pci_bars;
3940 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3941 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3942 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3943 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3945 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3946 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3948 GFP_KERNEL | __GFP_ZERO);
3949 if (rx_filter->va == NULL) {
3954 mutex_init(&adapter->mbox_lock);
3955 spin_lock_init(&adapter->mcc_lock);
3956 spin_lock_init(&adapter->mcc_cq_lock);
3958 init_completion(&adapter->flash_compl);
3959 pci_save_state(adapter->pdev);
3963 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3964 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3967 be_unmap_pci_bars(adapter);
3973 static void be_stats_cleanup(struct be_adapter *adapter)
3975 struct be_dma_mem *cmd = &adapter->stats_cmd;
3978 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3982 static int be_stats_init(struct be_adapter *adapter)
3984 struct be_dma_mem *cmd = &adapter->stats_cmd;
3986 if (lancer_chip(adapter))
3987 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3988 else if (BE2_chip(adapter))
3989 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3991 /* BE3 and Skyhawk */
3992 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3994 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3995 GFP_KERNEL | __GFP_ZERO);
3996 if (cmd->va == NULL)
4001 static void be_remove(struct pci_dev *pdev)
4003 struct be_adapter *adapter = pci_get_drvdata(pdev);
4008 be_roce_dev_remove(adapter);
4009 be_intr_set(adapter, false);
4011 cancel_delayed_work_sync(&adapter->func_recovery_work);
4013 unregister_netdev(adapter->netdev);
4017 /* tell fw we're done with firing cmds */
4018 be_cmd_fw_clean(adapter);
4020 be_stats_cleanup(adapter);
4022 be_ctrl_cleanup(adapter);
4024 pci_disable_pcie_error_reporting(pdev);
4026 pci_set_drvdata(pdev, NULL);
4027 pci_release_regions(pdev);
4028 pci_disable_device(pdev);
4030 free_netdev(adapter->netdev);
4033 bool be_is_wol_supported(struct be_adapter *adapter)
4035 return ((adapter->wol_cap & BE_WOL_CAP) &&
4036 !be_is_wol_excluded(adapter)) ? true : false;
4039 u32 be_get_fw_log_level(struct be_adapter *adapter)
4041 struct be_dma_mem extfat_cmd;
4042 struct be_fat_conf_params *cfgs;
4047 if (lancer_chip(adapter))
4050 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4051 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4052 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4055 if (!extfat_cmd.va) {
4056 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4061 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4063 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4064 sizeof(struct be_cmd_resp_hdr));
4065 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4066 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4067 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4070 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4076 static int be_get_initial_config(struct be_adapter *adapter)
4081 status = be_cmd_get_cntl_attributes(adapter);
4085 status = be_cmd_get_acpi_wol_cap(adapter);
4087 /* in case of a failure to get wol capabillities
4088 * check the exclusion list to determine WOL capability */
4089 if (!be_is_wol_excluded(adapter))
4090 adapter->wol_cap |= BE_WOL_CAP;
4093 if (be_is_wol_supported(adapter))
4094 adapter->wol = true;
4096 /* Must be a power of 2 or else MODULO will BUG_ON */
4097 adapter->be_get_temp_freq = 64;
4099 level = be_get_fw_log_level(adapter);
4100 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4105 static int lancer_recover_func(struct be_adapter *adapter)
4107 struct device *dev = &adapter->pdev->dev;
4110 status = lancer_test_and_set_rdy_state(adapter);
4114 if (netif_running(adapter->netdev))
4115 be_close(adapter->netdev);
4119 be_clear_all_error(adapter);
4121 status = be_setup(adapter);
4125 if (netif_running(adapter->netdev)) {
4126 status = be_open(adapter->netdev);
4131 dev_err(dev, "Error recovery successful\n");
4134 if (status == -EAGAIN)
4135 dev_err(dev, "Waiting for resource provisioning\n");
4137 dev_err(dev, "Error recovery failed\n");
4142 static void be_func_recovery_task(struct work_struct *work)
4144 struct be_adapter *adapter =
4145 container_of(work, struct be_adapter, func_recovery_work.work);
4148 be_detect_error(adapter);
4150 if (adapter->hw_error && lancer_chip(adapter)) {
4153 netif_device_detach(adapter->netdev);
4156 status = lancer_recover_func(adapter);
4158 netif_device_attach(adapter->netdev);
4161 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4162 * no need to attempt further recovery.
4164 if (!status || status == -EAGAIN)
4165 schedule_delayed_work(&adapter->func_recovery_work,
4166 msecs_to_jiffies(1000));
4169 static void be_worker(struct work_struct *work)
4171 struct be_adapter *adapter =
4172 container_of(work, struct be_adapter, work.work);
4173 struct be_rx_obj *rxo;
4174 struct be_eq_obj *eqo;
4177 /* when interrupts are not yet enabled, just reap any pending
4178 * mcc completions */
4179 if (!netif_running(adapter->netdev)) {
4181 be_process_mcc(adapter);
4186 if (!adapter->stats_cmd_sent) {
4187 if (lancer_chip(adapter))
4188 lancer_cmd_get_pport_stats(adapter,
4189 &adapter->stats_cmd);
4191 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4194 if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4195 be_cmd_get_die_temperature(adapter);
4197 for_all_rx_queues(adapter, rxo, i) {
4198 if (rxo->rx_post_starved) {
4199 rxo->rx_post_starved = false;
4200 be_post_rx_frags(rxo, GFP_KERNEL);
4204 for_all_evt_queues(adapter, eqo, i)
4205 be_eqd_update(adapter, eqo);
4208 adapter->work_counter++;
4209 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4212 static bool be_reset_required(struct be_adapter *adapter)
4214 return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
4217 static char *mc_name(struct be_adapter *adapter)
4219 if (adapter->function_mode & FLEX10_MODE)
4221 else if (adapter->function_mode & VNIC_MODE)
4223 else if (adapter->function_mode & UMC_ENABLED)
4229 static inline char *func_name(struct be_adapter *adapter)
4231 return be_physfn(adapter) ? "PF" : "VF";
4234 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4237 struct be_adapter *adapter;
4238 struct net_device *netdev;
4241 status = pci_enable_device(pdev);
4245 status = pci_request_regions(pdev, DRV_NAME);
4248 pci_set_master(pdev);
4250 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4251 if (netdev == NULL) {
4255 adapter = netdev_priv(netdev);
4256 adapter->pdev = pdev;
4257 pci_set_drvdata(pdev, adapter);
4258 adapter->netdev = netdev;
4259 SET_NETDEV_DEV(netdev, &pdev->dev);
4261 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4263 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4265 dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4268 netdev->features |= NETIF_F_HIGHDMA;
4270 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4272 status = dma_set_coherent_mask(&pdev->dev,
4275 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4280 status = pci_enable_pcie_error_reporting(pdev);
4282 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
4284 status = be_ctrl_init(adapter);
4288 /* sync up with fw's ready state */
4289 if (be_physfn(adapter)) {
4290 status = be_fw_wait_ready(adapter);
4295 if (be_reset_required(adapter)) {
4296 status = be_cmd_reset_function(adapter);
4300 /* Wait for interrupts to quiesce after an FLR */
4304 /* Allow interrupts for other ULPs running on NIC function */
4305 be_intr_set(adapter, true);
4307 /* tell fw we're ready to fire cmds */
4308 status = be_cmd_fw_init(adapter);
4312 status = be_stats_init(adapter);
4316 status = be_get_initial_config(adapter);
4320 INIT_DELAYED_WORK(&adapter->work, be_worker);
4321 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4322 adapter->rx_fc = adapter->tx_fc = true;
4324 status = be_setup(adapter);
4328 be_netdev_init(netdev);
4329 status = register_netdev(netdev);
4333 be_roce_dev_add(adapter);
4335 schedule_delayed_work(&adapter->func_recovery_work,
4336 msecs_to_jiffies(1000));
4338 be_cmd_query_port_name(adapter, &port_name);
4340 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4341 func_name(adapter), mc_name(adapter), port_name);
4348 be_stats_cleanup(adapter);
4350 be_ctrl_cleanup(adapter);
4352 free_netdev(netdev);
4353 pci_set_drvdata(pdev, NULL);
4355 pci_release_regions(pdev);
4357 pci_disable_device(pdev);
4359 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4363 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4365 struct be_adapter *adapter = pci_get_drvdata(pdev);
4366 struct net_device *netdev = adapter->netdev;
4369 be_setup_wol(adapter, true);
4371 cancel_delayed_work_sync(&adapter->func_recovery_work);
4373 netif_device_detach(netdev);
4374 if (netif_running(netdev)) {
4381 pci_save_state(pdev);
4382 pci_disable_device(pdev);
4383 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4387 static int be_resume(struct pci_dev *pdev)
4390 struct be_adapter *adapter = pci_get_drvdata(pdev);
4391 struct net_device *netdev = adapter->netdev;
4393 netif_device_detach(netdev);
4395 status = pci_enable_device(pdev);
4399 pci_set_power_state(pdev, 0);
4400 pci_restore_state(pdev);
4402 /* tell fw we're ready to fire cmds */
4403 status = be_cmd_fw_init(adapter);
4408 if (netif_running(netdev)) {
4414 schedule_delayed_work(&adapter->func_recovery_work,
4415 msecs_to_jiffies(1000));
4416 netif_device_attach(netdev);
4419 be_setup_wol(adapter, false);
4425 * An FLR will stop BE from DMAing any data.
4427 static void be_shutdown(struct pci_dev *pdev)
4429 struct be_adapter *adapter = pci_get_drvdata(pdev);
4434 cancel_delayed_work_sync(&adapter->work);
4435 cancel_delayed_work_sync(&adapter->func_recovery_work);
4437 netif_device_detach(adapter->netdev);
4439 be_cmd_reset_function(adapter);
4441 pci_disable_device(pdev);
4444 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4445 pci_channel_state_t state)
4447 struct be_adapter *adapter = pci_get_drvdata(pdev);
4448 struct net_device *netdev = adapter->netdev;
4450 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4452 if (!adapter->eeh_error) {
4453 adapter->eeh_error = true;
4455 cancel_delayed_work_sync(&adapter->func_recovery_work);
4458 netif_device_detach(netdev);
4459 if (netif_running(netdev))
4466 if (state == pci_channel_io_perm_failure)
4467 return PCI_ERS_RESULT_DISCONNECT;
4469 pci_disable_device(pdev);
4471 /* The error could cause the FW to trigger a flash debug dump.
4472 * Resetting the card while flash dump is in progress
4473 * can cause it not to recover; wait for it to finish.
4474 * Wait only for first function as it is needed only once per
4477 if (pdev->devfn == 0)
4480 return PCI_ERS_RESULT_NEED_RESET;
4483 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4485 struct be_adapter *adapter = pci_get_drvdata(pdev);
4488 dev_info(&adapter->pdev->dev, "EEH reset\n");
4490 status = pci_enable_device(pdev);
4492 return PCI_ERS_RESULT_DISCONNECT;
4494 pci_set_master(pdev);
4495 pci_set_power_state(pdev, 0);
4496 pci_restore_state(pdev);
4498 /* Check if card is ok and fw is ready */
4499 dev_info(&adapter->pdev->dev,
4500 "Waiting for FW to be ready after EEH reset\n");
4501 status = be_fw_wait_ready(adapter);
4503 return PCI_ERS_RESULT_DISCONNECT;
4505 pci_cleanup_aer_uncorrect_error_status(pdev);
4506 be_clear_all_error(adapter);
4507 return PCI_ERS_RESULT_RECOVERED;
4510 static void be_eeh_resume(struct pci_dev *pdev)
4513 struct be_adapter *adapter = pci_get_drvdata(pdev);
4514 struct net_device *netdev = adapter->netdev;
4516 dev_info(&adapter->pdev->dev, "EEH resume\n");
4518 pci_save_state(pdev);
4520 status = be_cmd_reset_function(adapter);
4524 /* tell fw we're ready to fire cmds */
4525 status = be_cmd_fw_init(adapter);
4529 status = be_setup(adapter);
4533 if (netif_running(netdev)) {
4534 status = be_open(netdev);
4539 schedule_delayed_work(&adapter->func_recovery_work,
4540 msecs_to_jiffies(1000));
4541 netif_device_attach(netdev);
4544 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4547 static const struct pci_error_handlers be_eeh_handlers = {
4548 .error_detected = be_eeh_err_detected,
4549 .slot_reset = be_eeh_reset,
4550 .resume = be_eeh_resume,
4553 static struct pci_driver be_driver = {
4555 .id_table = be_dev_ids,
4557 .remove = be_remove,
4558 .suspend = be_suspend,
4559 .resume = be_resume,
4560 .shutdown = be_shutdown,
4561 .err_handler = &be_eeh_handlers
4564 static int __init be_init_module(void)
4566 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4567 rx_frag_size != 2048) {
4568 printk(KERN_WARNING DRV_NAME
4569 " : Module param rx_frag_size must be 2048/4096/8192."
4571 rx_frag_size = 2048;
4574 return pci_register_driver(&be_driver);
4576 module_init(be_init_module);
4578 static void __exit be_exit_module(void)
4580 pci_unregister_driver(&be_driver);
4582 module_exit(be_exit_module);