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);
785 else if (qnq_async_evt_rcvd(adapter) && adapter->pvid)
786 vlan_tag = adapter->pvid;
789 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
794 *skip_hw_vlan = true;
797 /* Insert the outer VLAN, if any */
798 if (adapter->qnq_vid) {
799 vlan_tag = adapter->qnq_vid;
800 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
804 *skip_hw_vlan = true;
810 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
812 struct ethhdr *eh = (struct ethhdr *)skb->data;
813 u16 offset = ETH_HLEN;
815 if (eh->h_proto == htons(ETH_P_IPV6)) {
816 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
818 offset += sizeof(struct ipv6hdr);
819 if (ip6h->nexthdr != NEXTHDR_TCP &&
820 ip6h->nexthdr != NEXTHDR_UDP) {
821 struct ipv6_opt_hdr *ehdr =
822 (struct ipv6_opt_hdr *) (skb->data + offset);
824 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
825 if (ehdr->hdrlen == 0xff)
832 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
834 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
837 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
840 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
843 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
847 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
848 unsigned int eth_hdr_len;
851 /* Lancer ASIC has a bug wherein packets that are 32 bytes or less
852 * may cause a transmit stall on that port. So the work-around is to
853 * pad such packets to a 36-byte length.
855 if (unlikely(lancer_chip(adapter) && skb->len <= 32)) {
856 if (skb_padto(skb, 36))
861 /* For padded packets, BE HW modifies tot_len field in IP header
862 * incorrecly when VLAN tag is inserted by HW.
863 * For padded packets, Lancer computes incorrect checksum.
865 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
866 VLAN_ETH_HLEN : ETH_HLEN;
867 if (skb->len <= 60 &&
868 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
870 ip = (struct iphdr *)ip_hdr(skb);
871 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
874 /* If vlan tag is already inlined in the packet, skip HW VLAN
875 * tagging in UMC mode
877 if ((adapter->function_mode & UMC_ENABLED) &&
878 veh->h_vlan_proto == htons(ETH_P_8021Q))
879 *skip_hw_vlan = true;
881 /* HW has a bug wherein it will calculate CSUM for VLAN
882 * pkts even though it is disabled.
883 * Manually insert VLAN in pkt.
885 if (skb->ip_summed != CHECKSUM_PARTIAL &&
886 vlan_tx_tag_present(skb)) {
887 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
892 /* HW may lockup when VLAN HW tagging is requested on
893 * certain ipv6 packets. Drop such pkts if the HW workaround to
894 * skip HW tagging is not enabled by FW.
896 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
897 (adapter->pvid || adapter->qnq_vid) &&
898 !qnq_async_evt_rcvd(adapter)))
901 /* Manual VLAN tag insertion to prevent:
902 * ASIC lockup when the ASIC inserts VLAN tag into
903 * certain ipv6 packets. Insert VLAN tags in driver,
904 * and set event, completion, vlan bits accordingly
907 if (be_ipv6_tx_stall_chk(adapter, skb) &&
908 be_vlan_tag_tx_chk(adapter, skb)) {
909 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
916 dev_kfree_skb_any(skb);
920 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
922 struct be_adapter *adapter = netdev_priv(netdev);
923 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
924 struct be_queue_info *txq = &txo->q;
925 bool dummy_wrb, stopped = false;
926 u32 wrb_cnt = 0, copied = 0;
927 bool skip_hw_vlan = false;
928 u32 start = txq->head;
930 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
934 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
936 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
939 int gso_segs = skb_shinfo(skb)->gso_segs;
941 /* record the sent skb in the sent_skb table */
942 BUG_ON(txo->sent_skb_list[start]);
943 txo->sent_skb_list[start] = skb;
945 /* Ensure txq has space for the next skb; Else stop the queue
946 * *BEFORE* ringing the tx doorbell, so that we serialze the
947 * tx compls of the current transmit which'll wake up the queue
949 atomic_add(wrb_cnt, &txq->used);
950 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
952 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
956 be_txq_notify(adapter, txo, wrb_cnt);
958 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
961 dev_kfree_skb_any(skb);
966 static int be_change_mtu(struct net_device *netdev, int new_mtu)
968 struct be_adapter *adapter = netdev_priv(netdev);
969 if (new_mtu < BE_MIN_MTU ||
970 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
971 (ETH_HLEN + ETH_FCS_LEN))) {
972 dev_info(&adapter->pdev->dev,
973 "MTU must be between %d and %d bytes\n",
975 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
978 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
979 netdev->mtu, new_mtu);
980 netdev->mtu = new_mtu;
985 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
986 * If the user configures more, place BE in vlan promiscuous mode.
988 static int be_vid_config(struct be_adapter *adapter)
990 u16 vids[BE_NUM_VLANS_SUPPORTED];
994 /* No need to further configure vids if in promiscuous mode */
995 if (adapter->promiscuous)
998 if (adapter->vlans_added > adapter->max_vlans)
999 goto set_vlan_promisc;
1001 /* Construct VLAN Table to give to HW */
1002 for (i = 0; i < VLAN_N_VID; i++)
1003 if (adapter->vlan_tag[i])
1004 vids[num++] = cpu_to_le16(i);
1006 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1009 /* Set to VLAN promisc mode as setting VLAN filter failed */
1011 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
1012 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
1013 goto set_vlan_promisc;
1019 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1024 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1026 struct be_adapter *adapter = netdev_priv(netdev);
1029 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1034 /* Packets with VID 0 are always received by Lancer by default */
1035 if (lancer_chip(adapter) && vid == 0)
1038 adapter->vlan_tag[vid] = 1;
1039 if (adapter->vlans_added <= (adapter->max_vlans + 1))
1040 status = be_vid_config(adapter);
1043 adapter->vlans_added++;
1045 adapter->vlan_tag[vid] = 0;
1050 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1052 struct be_adapter *adapter = netdev_priv(netdev);
1055 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1060 /* Packets with VID 0 are always received by Lancer by default */
1061 if (lancer_chip(adapter) && vid == 0)
1064 adapter->vlan_tag[vid] = 0;
1065 if (adapter->vlans_added <= adapter->max_vlans)
1066 status = be_vid_config(adapter);
1069 adapter->vlans_added--;
1071 adapter->vlan_tag[vid] = 1;
1076 static void be_set_rx_mode(struct net_device *netdev)
1078 struct be_adapter *adapter = netdev_priv(netdev);
1081 if (netdev->flags & IFF_PROMISC) {
1082 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1083 adapter->promiscuous = true;
1087 /* BE was previously in promiscuous mode; disable it */
1088 if (adapter->promiscuous) {
1089 adapter->promiscuous = false;
1090 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1092 if (adapter->vlans_added)
1093 be_vid_config(adapter);
1096 /* Enable multicast promisc if num configured exceeds what we support */
1097 if (netdev->flags & IFF_ALLMULTI ||
1098 netdev_mc_count(netdev) > adapter->max_mcast_mac) {
1099 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1103 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1104 struct netdev_hw_addr *ha;
1105 int i = 1; /* First slot is claimed by the Primary MAC */
1107 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1108 be_cmd_pmac_del(adapter, adapter->if_handle,
1109 adapter->pmac_id[i], 0);
1112 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
1113 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1114 adapter->promiscuous = true;
1118 netdev_for_each_uc_addr(ha, adapter->netdev) {
1119 adapter->uc_macs++; /* First slot is for Primary MAC */
1120 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1122 &adapter->pmac_id[adapter->uc_macs], 0);
1126 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1128 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1130 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1131 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1132 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1138 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1140 struct be_adapter *adapter = netdev_priv(netdev);
1141 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1143 bool active_mac = false;
1145 u8 old_mac[ETH_ALEN];
1147 if (!sriov_enabled(adapter))
1150 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1153 if (lancer_chip(adapter)) {
1154 status = be_cmd_get_mac_from_list(adapter, old_mac, &active_mac,
1156 if (!status && active_mac)
1157 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1160 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
1162 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1163 vf_cfg->pmac_id, vf + 1);
1165 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1166 &vf_cfg->pmac_id, vf + 1);
1170 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1173 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1178 static int be_get_vf_config(struct net_device *netdev, int vf,
1179 struct ifla_vf_info *vi)
1181 struct be_adapter *adapter = netdev_priv(netdev);
1182 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1184 if (!sriov_enabled(adapter))
1187 if (vf >= adapter->num_vfs)
1191 vi->tx_rate = vf_cfg->tx_rate;
1192 vi->vlan = vf_cfg->vlan_tag;
1194 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1199 static int be_set_vf_vlan(struct net_device *netdev,
1200 int vf, u16 vlan, u8 qos)
1202 struct be_adapter *adapter = netdev_priv(netdev);
1205 if (!sriov_enabled(adapter))
1208 if (vf >= adapter->num_vfs || vlan > 4095)
1212 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1213 /* If this is new value, program it. Else skip. */
1214 adapter->vf_cfg[vf].vlan_tag = vlan;
1216 status = be_cmd_set_hsw_config(adapter, vlan,
1217 vf + 1, adapter->vf_cfg[vf].if_handle);
1220 /* Reset Transparent Vlan Tagging. */
1221 adapter->vf_cfg[vf].vlan_tag = 0;
1222 vlan = adapter->vf_cfg[vf].def_vid;
1223 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1224 adapter->vf_cfg[vf].if_handle);
1229 dev_info(&adapter->pdev->dev,
1230 "VLAN %d config on VF %d failed\n", vlan, vf);
1234 static int be_set_vf_tx_rate(struct net_device *netdev,
1237 struct be_adapter *adapter = netdev_priv(netdev);
1240 if (!sriov_enabled(adapter))
1243 if (vf >= adapter->num_vfs)
1246 if (rate < 100 || rate > 10000) {
1247 dev_err(&adapter->pdev->dev,
1248 "tx rate must be between 100 and 10000 Mbps\n");
1252 if (lancer_chip(adapter))
1253 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1255 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1258 dev_err(&adapter->pdev->dev,
1259 "tx rate %d on VF %d failed\n", rate, vf);
1261 adapter->vf_cfg[vf].tx_rate = rate;
1265 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1267 struct pci_dev *dev, *pdev = adapter->pdev;
1268 int vfs = 0, assigned_vfs = 0, pos;
1271 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1274 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1275 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1277 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1279 if (dev->is_virtfn && pci_physfn(dev) == pdev) {
1281 if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1284 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1286 return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1289 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1291 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1292 ulong now = jiffies;
1293 ulong delta = now - stats->rx_jiffies;
1295 unsigned int start, eqd;
1297 if (!eqo->enable_aic) {
1302 if (eqo->idx >= adapter->num_rx_qs)
1305 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1307 /* Wrapped around */
1308 if (time_before(now, stats->rx_jiffies)) {
1309 stats->rx_jiffies = now;
1313 /* Update once a second */
1318 start = u64_stats_fetch_begin_bh(&stats->sync);
1319 pkts = stats->rx_pkts;
1320 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1322 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1323 stats->rx_pkts_prev = pkts;
1324 stats->rx_jiffies = now;
1325 eqd = (stats->rx_pps / 110000) << 3;
1326 eqd = min(eqd, eqo->max_eqd);
1327 eqd = max(eqd, eqo->min_eqd);
1332 if (eqd != eqo->cur_eqd) {
1333 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1338 static void be_rx_stats_update(struct be_rx_obj *rxo,
1339 struct be_rx_compl_info *rxcp)
1341 struct be_rx_stats *stats = rx_stats(rxo);
1343 u64_stats_update_begin(&stats->sync);
1345 stats->rx_bytes += rxcp->pkt_size;
1347 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1348 stats->rx_mcast_pkts++;
1350 stats->rx_compl_err++;
1351 u64_stats_update_end(&stats->sync);
1354 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1356 /* L4 checksum is not reliable for non TCP/UDP packets.
1357 * Also ignore ipcksm for ipv6 pkts */
1358 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1359 (rxcp->ip_csum || rxcp->ipv6);
1362 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1365 struct be_adapter *adapter = rxo->adapter;
1366 struct be_rx_page_info *rx_page_info;
1367 struct be_queue_info *rxq = &rxo->q;
1369 rx_page_info = &rxo->page_info_tbl[frag_idx];
1370 BUG_ON(!rx_page_info->page);
1372 if (rx_page_info->last_page_user) {
1373 dma_unmap_page(&adapter->pdev->dev,
1374 dma_unmap_addr(rx_page_info, bus),
1375 adapter->big_page_size, DMA_FROM_DEVICE);
1376 rx_page_info->last_page_user = false;
1379 atomic_dec(&rxq->used);
1380 return rx_page_info;
1383 /* Throwaway the data in the Rx completion */
1384 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1385 struct be_rx_compl_info *rxcp)
1387 struct be_queue_info *rxq = &rxo->q;
1388 struct be_rx_page_info *page_info;
1389 u16 i, num_rcvd = rxcp->num_rcvd;
1391 for (i = 0; i < num_rcvd; i++) {
1392 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1393 put_page(page_info->page);
1394 memset(page_info, 0, sizeof(*page_info));
1395 index_inc(&rxcp->rxq_idx, rxq->len);
1400 * skb_fill_rx_data forms a complete skb for an ether frame
1401 * indicated by rxcp.
1403 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1404 struct be_rx_compl_info *rxcp)
1406 struct be_queue_info *rxq = &rxo->q;
1407 struct be_rx_page_info *page_info;
1409 u16 hdr_len, curr_frag_len, remaining;
1412 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1413 start = page_address(page_info->page) + page_info->page_offset;
1416 /* Copy data in the first descriptor of this completion */
1417 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1419 skb->len = curr_frag_len;
1420 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1421 memcpy(skb->data, start, curr_frag_len);
1422 /* Complete packet has now been moved to data */
1423 put_page(page_info->page);
1425 skb->tail += curr_frag_len;
1428 memcpy(skb->data, start, hdr_len);
1429 skb_shinfo(skb)->nr_frags = 1;
1430 skb_frag_set_page(skb, 0, page_info->page);
1431 skb_shinfo(skb)->frags[0].page_offset =
1432 page_info->page_offset + hdr_len;
1433 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1434 skb->data_len = curr_frag_len - hdr_len;
1435 skb->truesize += rx_frag_size;
1436 skb->tail += hdr_len;
1438 page_info->page = NULL;
1440 if (rxcp->pkt_size <= rx_frag_size) {
1441 BUG_ON(rxcp->num_rcvd != 1);
1445 /* More frags present for this completion */
1446 index_inc(&rxcp->rxq_idx, rxq->len);
1447 remaining = rxcp->pkt_size - curr_frag_len;
1448 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1449 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1450 curr_frag_len = min(remaining, rx_frag_size);
1452 /* Coalesce all frags from the same physical page in one slot */
1453 if (page_info->page_offset == 0) {
1456 skb_frag_set_page(skb, j, page_info->page);
1457 skb_shinfo(skb)->frags[j].page_offset =
1458 page_info->page_offset;
1459 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1460 skb_shinfo(skb)->nr_frags++;
1462 put_page(page_info->page);
1465 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1466 skb->len += curr_frag_len;
1467 skb->data_len += curr_frag_len;
1468 skb->truesize += rx_frag_size;
1469 remaining -= curr_frag_len;
1470 index_inc(&rxcp->rxq_idx, rxq->len);
1471 page_info->page = NULL;
1473 BUG_ON(j > MAX_SKB_FRAGS);
1476 /* Process the RX completion indicated by rxcp when GRO is disabled */
1477 static void be_rx_compl_process(struct be_rx_obj *rxo,
1478 struct be_rx_compl_info *rxcp)
1480 struct be_adapter *adapter = rxo->adapter;
1481 struct net_device *netdev = adapter->netdev;
1482 struct sk_buff *skb;
1484 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1485 if (unlikely(!skb)) {
1486 rx_stats(rxo)->rx_drops_no_skbs++;
1487 be_rx_compl_discard(rxo, rxcp);
1491 skb_fill_rx_data(rxo, skb, rxcp);
1493 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1494 skb->ip_summed = CHECKSUM_UNNECESSARY;
1496 skb_checksum_none_assert(skb);
1498 skb->protocol = eth_type_trans(skb, netdev);
1499 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1500 if (netdev->features & NETIF_F_RXHASH)
1501 skb->rxhash = rxcp->rss_hash;
1505 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1507 netif_receive_skb(skb);
1510 /* Process the RX completion indicated by rxcp when GRO is enabled */
1511 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1512 struct be_rx_compl_info *rxcp)
1514 struct be_adapter *adapter = rxo->adapter;
1515 struct be_rx_page_info *page_info;
1516 struct sk_buff *skb = NULL;
1517 struct be_queue_info *rxq = &rxo->q;
1518 u16 remaining, curr_frag_len;
1521 skb = napi_get_frags(napi);
1523 be_rx_compl_discard(rxo, rxcp);
1527 remaining = rxcp->pkt_size;
1528 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1529 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1531 curr_frag_len = min(remaining, rx_frag_size);
1533 /* Coalesce all frags from the same physical page in one slot */
1534 if (i == 0 || page_info->page_offset == 0) {
1535 /* First frag or Fresh page */
1537 skb_frag_set_page(skb, j, page_info->page);
1538 skb_shinfo(skb)->frags[j].page_offset =
1539 page_info->page_offset;
1540 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1542 put_page(page_info->page);
1544 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1545 skb->truesize += rx_frag_size;
1546 remaining -= curr_frag_len;
1547 index_inc(&rxcp->rxq_idx, rxq->len);
1548 memset(page_info, 0, sizeof(*page_info));
1550 BUG_ON(j > MAX_SKB_FRAGS);
1552 skb_shinfo(skb)->nr_frags = j + 1;
1553 skb->len = rxcp->pkt_size;
1554 skb->data_len = rxcp->pkt_size;
1555 skb->ip_summed = CHECKSUM_UNNECESSARY;
1556 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1557 if (adapter->netdev->features & NETIF_F_RXHASH)
1558 skb->rxhash = rxcp->rss_hash;
1561 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1563 napi_gro_frags(napi);
1566 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1567 struct be_rx_compl_info *rxcp)
1570 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1571 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1572 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1573 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1574 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1576 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1578 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1580 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1582 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1584 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1586 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1588 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1590 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1592 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1595 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1598 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1599 struct be_rx_compl_info *rxcp)
1602 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1603 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1604 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1605 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1606 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1608 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1610 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1612 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1614 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1616 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1618 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1620 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1622 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1624 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1627 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1628 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1632 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1634 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1635 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1636 struct be_adapter *adapter = rxo->adapter;
1638 /* For checking the valid bit it is Ok to use either definition as the
1639 * valid bit is at the same position in both v0 and v1 Rx compl */
1640 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1644 be_dws_le_to_cpu(compl, sizeof(*compl));
1646 if (adapter->be3_native)
1647 be_parse_rx_compl_v1(compl, rxcp);
1649 be_parse_rx_compl_v0(compl, rxcp);
1655 /* vlanf could be wrongly set in some cards.
1656 * ignore if vtm is not set */
1657 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1660 if (!lancer_chip(adapter))
1661 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1663 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1664 !adapter->vlan_tag[rxcp->vlan_tag])
1668 /* As the compl has been parsed, reset it; we wont touch it again */
1669 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1671 queue_tail_inc(&rxo->cq);
1675 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1677 u32 order = get_order(size);
1681 return alloc_pages(gfp, order);
1685 * Allocate a page, split it to fragments of size rx_frag_size and post as
1686 * receive buffers to BE
1688 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1690 struct be_adapter *adapter = rxo->adapter;
1691 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1692 struct be_queue_info *rxq = &rxo->q;
1693 struct page *pagep = NULL;
1694 struct be_eth_rx_d *rxd;
1695 u64 page_dmaaddr = 0, frag_dmaaddr;
1696 u32 posted, page_offset = 0;
1698 page_info = &rxo->page_info_tbl[rxq->head];
1699 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1701 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1702 if (unlikely(!pagep)) {
1703 rx_stats(rxo)->rx_post_fail++;
1706 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1707 0, adapter->big_page_size,
1709 page_info->page_offset = 0;
1712 page_info->page_offset = page_offset + rx_frag_size;
1714 page_offset = page_info->page_offset;
1715 page_info->page = pagep;
1716 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1717 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1719 rxd = queue_head_node(rxq);
1720 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1721 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1723 /* Any space left in the current big page for another frag? */
1724 if ((page_offset + rx_frag_size + rx_frag_size) >
1725 adapter->big_page_size) {
1727 page_info->last_page_user = true;
1730 prev_page_info = page_info;
1731 queue_head_inc(rxq);
1732 page_info = &rxo->page_info_tbl[rxq->head];
1735 prev_page_info->last_page_user = true;
1738 atomic_add(posted, &rxq->used);
1739 be_rxq_notify(adapter, rxq->id, posted);
1740 } else if (atomic_read(&rxq->used) == 0) {
1741 /* Let be_worker replenish when memory is available */
1742 rxo->rx_post_starved = true;
1746 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1748 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1750 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1754 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1756 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1758 queue_tail_inc(tx_cq);
1762 static u16 be_tx_compl_process(struct be_adapter *adapter,
1763 struct be_tx_obj *txo, u16 last_index)
1765 struct be_queue_info *txq = &txo->q;
1766 struct be_eth_wrb *wrb;
1767 struct sk_buff **sent_skbs = txo->sent_skb_list;
1768 struct sk_buff *sent_skb;
1769 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1770 bool unmap_skb_hdr = true;
1772 sent_skb = sent_skbs[txq->tail];
1774 sent_skbs[txq->tail] = NULL;
1776 /* skip header wrb */
1777 queue_tail_inc(txq);
1780 cur_index = txq->tail;
1781 wrb = queue_tail_node(txq);
1782 unmap_tx_frag(&adapter->pdev->dev, wrb,
1783 (unmap_skb_hdr && skb_headlen(sent_skb)));
1784 unmap_skb_hdr = false;
1787 queue_tail_inc(txq);
1788 } while (cur_index != last_index);
1790 kfree_skb(sent_skb);
1794 /* Return the number of events in the event queue */
1795 static inline int events_get(struct be_eq_obj *eqo)
1797 struct be_eq_entry *eqe;
1801 eqe = queue_tail_node(&eqo->q);
1808 queue_tail_inc(&eqo->q);
1814 /* Leaves the EQ is disarmed state */
1815 static void be_eq_clean(struct be_eq_obj *eqo)
1817 int num = events_get(eqo);
1819 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1822 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1824 struct be_rx_page_info *page_info;
1825 struct be_queue_info *rxq = &rxo->q;
1826 struct be_queue_info *rx_cq = &rxo->cq;
1827 struct be_rx_compl_info *rxcp;
1828 struct be_adapter *adapter = rxo->adapter;
1832 /* Consume pending rx completions.
1833 * Wait for the flush completion (identified by zero num_rcvd)
1834 * to arrive. Notify CQ even when there are no more CQ entries
1835 * for HW to flush partially coalesced CQ entries.
1836 * In Lancer, there is no need to wait for flush compl.
1839 rxcp = be_rx_compl_get(rxo);
1841 if (lancer_chip(adapter))
1844 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1845 dev_warn(&adapter->pdev->dev,
1846 "did not receive flush compl\n");
1849 be_cq_notify(adapter, rx_cq->id, true, 0);
1852 be_rx_compl_discard(rxo, rxcp);
1853 be_cq_notify(adapter, rx_cq->id, false, 1);
1854 if (rxcp->num_rcvd == 0)
1859 /* After cleanup, leave the CQ in unarmed state */
1860 be_cq_notify(adapter, rx_cq->id, false, 0);
1862 /* Then free posted rx buffers that were not used */
1863 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1864 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1865 page_info = get_rx_page_info(rxo, tail);
1866 put_page(page_info->page);
1867 memset(page_info, 0, sizeof(*page_info));
1869 BUG_ON(atomic_read(&rxq->used));
1870 rxq->tail = rxq->head = 0;
1873 static void be_tx_compl_clean(struct be_adapter *adapter)
1875 struct be_tx_obj *txo;
1876 struct be_queue_info *txq;
1877 struct be_eth_tx_compl *txcp;
1878 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1879 struct sk_buff *sent_skb;
1881 int i, pending_txqs;
1883 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1885 pending_txqs = adapter->num_tx_qs;
1887 for_all_tx_queues(adapter, txo, i) {
1889 while ((txcp = be_tx_compl_get(&txo->cq))) {
1891 AMAP_GET_BITS(struct amap_eth_tx_compl,
1893 num_wrbs += be_tx_compl_process(adapter, txo,
1898 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1899 atomic_sub(num_wrbs, &txq->used);
1903 if (atomic_read(&txq->used) == 0)
1907 if (pending_txqs == 0 || ++timeo > 200)
1913 for_all_tx_queues(adapter, txo, i) {
1915 if (atomic_read(&txq->used))
1916 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1917 atomic_read(&txq->used));
1919 /* free posted tx for which compls will never arrive */
1920 while (atomic_read(&txq->used)) {
1921 sent_skb = txo->sent_skb_list[txq->tail];
1922 end_idx = txq->tail;
1923 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1925 index_adv(&end_idx, num_wrbs - 1, txq->len);
1926 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1927 atomic_sub(num_wrbs, &txq->used);
1932 static void be_evt_queues_destroy(struct be_adapter *adapter)
1934 struct be_eq_obj *eqo;
1937 for_all_evt_queues(adapter, eqo, i) {
1938 if (eqo->q.created) {
1940 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1942 be_queue_free(adapter, &eqo->q);
1946 static int be_evt_queues_create(struct be_adapter *adapter)
1948 struct be_queue_info *eq;
1949 struct be_eq_obj *eqo;
1952 adapter->num_evt_qs = num_irqs(adapter);
1954 for_all_evt_queues(adapter, eqo, i) {
1955 eqo->adapter = adapter;
1956 eqo->tx_budget = BE_TX_BUDGET;
1958 eqo->max_eqd = BE_MAX_EQD;
1959 eqo->enable_aic = true;
1962 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1963 sizeof(struct be_eq_entry));
1967 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1974 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1976 struct be_queue_info *q;
1978 q = &adapter->mcc_obj.q;
1980 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1981 be_queue_free(adapter, q);
1983 q = &adapter->mcc_obj.cq;
1985 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1986 be_queue_free(adapter, q);
1989 /* Must be called only after TX qs are created as MCC shares TX EQ */
1990 static int be_mcc_queues_create(struct be_adapter *adapter)
1992 struct be_queue_info *q, *cq;
1994 cq = &adapter->mcc_obj.cq;
1995 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1996 sizeof(struct be_mcc_compl)))
1999 /* Use the default EQ for MCC completions */
2000 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2003 q = &adapter->mcc_obj.q;
2004 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2005 goto mcc_cq_destroy;
2007 if (be_cmd_mccq_create(adapter, q, cq))
2013 be_queue_free(adapter, q);
2015 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2017 be_queue_free(adapter, cq);
2022 static void be_tx_queues_destroy(struct be_adapter *adapter)
2024 struct be_queue_info *q;
2025 struct be_tx_obj *txo;
2028 for_all_tx_queues(adapter, txo, i) {
2031 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2032 be_queue_free(adapter, q);
2036 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2037 be_queue_free(adapter, q);
2041 static int be_num_txqs_want(struct be_adapter *adapter)
2043 if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
2044 be_is_mc(adapter) ||
2045 (!lancer_chip(adapter) && !be_physfn(adapter)) ||
2049 return adapter->max_tx_queues;
2052 static int be_tx_cqs_create(struct be_adapter *adapter)
2054 struct be_queue_info *cq, *eq;
2056 struct be_tx_obj *txo;
2059 adapter->num_tx_qs = be_num_txqs_want(adapter);
2060 if (adapter->num_tx_qs != MAX_TX_QS) {
2062 netif_set_real_num_tx_queues(adapter->netdev,
2063 adapter->num_tx_qs);
2067 for_all_tx_queues(adapter, txo, i) {
2069 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2070 sizeof(struct be_eth_tx_compl));
2074 /* If num_evt_qs is less than num_tx_qs, then more than
2075 * one txq share an eq
2077 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2078 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2085 static int be_tx_qs_create(struct be_adapter *adapter)
2087 struct be_tx_obj *txo;
2090 for_all_tx_queues(adapter, txo, i) {
2091 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2092 sizeof(struct be_eth_wrb));
2096 status = be_cmd_txq_create(adapter, txo);
2101 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2102 adapter->num_tx_qs);
2106 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2108 struct be_queue_info *q;
2109 struct be_rx_obj *rxo;
2112 for_all_rx_queues(adapter, rxo, i) {
2115 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2116 be_queue_free(adapter, q);
2120 static int be_rx_cqs_create(struct be_adapter *adapter)
2122 struct be_queue_info *eq, *cq;
2123 struct be_rx_obj *rxo;
2126 /* We'll create as many RSS rings as there are irqs.
2127 * But when there's only one irq there's no use creating RSS rings
2129 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
2130 num_irqs(adapter) + 1 : 1;
2131 if (adapter->num_rx_qs != MAX_RX_QS) {
2133 netif_set_real_num_rx_queues(adapter->netdev,
2134 adapter->num_rx_qs);
2138 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2139 for_all_rx_queues(adapter, rxo, i) {
2140 rxo->adapter = adapter;
2142 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2143 sizeof(struct be_eth_rx_compl));
2147 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2148 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2153 dev_info(&adapter->pdev->dev,
2154 "created %d RSS queue(s) and 1 default RX queue\n",
2155 adapter->num_rx_qs - 1);
2159 static irqreturn_t be_intx(int irq, void *dev)
2161 struct be_eq_obj *eqo = dev;
2162 struct be_adapter *adapter = eqo->adapter;
2165 /* IRQ is not expected when NAPI is scheduled as the EQ
2166 * will not be armed.
2167 * But, this can happen on Lancer INTx where it takes
2168 * a while to de-assert INTx or in BE2 where occasionaly
2169 * an interrupt may be raised even when EQ is unarmed.
2170 * If NAPI is already scheduled, then counting & notifying
2171 * events will orphan them.
2173 if (napi_schedule_prep(&eqo->napi)) {
2174 num_evts = events_get(eqo);
2175 __napi_schedule(&eqo->napi);
2177 eqo->spurious_intr = 0;
2179 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2181 /* Return IRQ_HANDLED only for the the first spurious intr
2182 * after a valid intr to stop the kernel from branding
2183 * this irq as a bad one!
2185 if (num_evts || eqo->spurious_intr++ == 0)
2191 static irqreturn_t be_msix(int irq, void *dev)
2193 struct be_eq_obj *eqo = dev;
2195 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2196 napi_schedule(&eqo->napi);
2200 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2202 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2205 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2208 struct be_adapter *adapter = rxo->adapter;
2209 struct be_queue_info *rx_cq = &rxo->cq;
2210 struct be_rx_compl_info *rxcp;
2213 for (work_done = 0; work_done < budget; work_done++) {
2214 rxcp = be_rx_compl_get(rxo);
2218 /* Is it a flush compl that has no data */
2219 if (unlikely(rxcp->num_rcvd == 0))
2222 /* Discard compl with partial DMA Lancer B0 */
2223 if (unlikely(!rxcp->pkt_size)) {
2224 be_rx_compl_discard(rxo, rxcp);
2228 /* On BE drop pkts that arrive due to imperfect filtering in
2229 * promiscuous mode on some skews
2231 if (unlikely(rxcp->port != adapter->port_num &&
2232 !lancer_chip(adapter))) {
2233 be_rx_compl_discard(rxo, rxcp);
2238 be_rx_compl_process_gro(rxo, napi, rxcp);
2240 be_rx_compl_process(rxo, rxcp);
2242 be_rx_stats_update(rxo, rxcp);
2246 be_cq_notify(adapter, rx_cq->id, true, work_done);
2248 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2249 be_post_rx_frags(rxo, GFP_ATOMIC);
2255 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2256 int budget, int idx)
2258 struct be_eth_tx_compl *txcp;
2259 int num_wrbs = 0, work_done;
2261 for (work_done = 0; work_done < budget; work_done++) {
2262 txcp = be_tx_compl_get(&txo->cq);
2265 num_wrbs += be_tx_compl_process(adapter, txo,
2266 AMAP_GET_BITS(struct amap_eth_tx_compl,
2271 be_cq_notify(adapter, txo->cq.id, true, work_done);
2272 atomic_sub(num_wrbs, &txo->q.used);
2274 /* As Tx wrbs have been freed up, wake up netdev queue
2275 * if it was stopped due to lack of tx wrbs. */
2276 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2277 atomic_read(&txo->q.used) < txo->q.len / 2) {
2278 netif_wake_subqueue(adapter->netdev, idx);
2281 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2282 tx_stats(txo)->tx_compl += work_done;
2283 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2285 return (work_done < budget); /* Done */
2288 int be_poll(struct napi_struct *napi, int budget)
2290 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2291 struct be_adapter *adapter = eqo->adapter;
2292 int max_work = 0, work, i, num_evts;
2295 num_evts = events_get(eqo);
2297 /* Process all TXQs serviced by this EQ */
2298 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2299 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2305 /* This loop will iterate twice for EQ0 in which
2306 * completions of the last RXQ (default one) are also processed
2307 * For other EQs the loop iterates only once
2309 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2310 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2311 max_work = max(work, max_work);
2314 if (is_mcc_eqo(eqo))
2315 be_process_mcc(adapter);
2317 if (max_work < budget) {
2318 napi_complete(napi);
2319 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2321 /* As we'll continue in polling mode, count and clear events */
2322 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2327 void be_detect_error(struct be_adapter *adapter)
2329 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2330 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2333 if (be_hw_error(adapter))
2336 if (lancer_chip(adapter)) {
2337 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2338 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2339 sliport_err1 = ioread32(adapter->db +
2340 SLIPORT_ERROR1_OFFSET);
2341 sliport_err2 = ioread32(adapter->db +
2342 SLIPORT_ERROR2_OFFSET);
2345 pci_read_config_dword(adapter->pdev,
2346 PCICFG_UE_STATUS_LOW, &ue_lo);
2347 pci_read_config_dword(adapter->pdev,
2348 PCICFG_UE_STATUS_HIGH, &ue_hi);
2349 pci_read_config_dword(adapter->pdev,
2350 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2351 pci_read_config_dword(adapter->pdev,
2352 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2354 ue_lo = (ue_lo & ~ue_lo_mask);
2355 ue_hi = (ue_hi & ~ue_hi_mask);
2358 /* On certain platforms BE hardware can indicate spurious UEs.
2359 * Allow the h/w to stop working completely in case of a real UE.
2360 * Hence not setting the hw_error for UE detection.
2362 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2363 adapter->hw_error = true;
2364 dev_err(&adapter->pdev->dev,
2365 "Error detected in the card\n");
2368 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2369 dev_err(&adapter->pdev->dev,
2370 "ERR: sliport status 0x%x\n", sliport_status);
2371 dev_err(&adapter->pdev->dev,
2372 "ERR: sliport error1 0x%x\n", sliport_err1);
2373 dev_err(&adapter->pdev->dev,
2374 "ERR: sliport error2 0x%x\n", sliport_err2);
2378 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2380 dev_err(&adapter->pdev->dev,
2381 "UE: %s bit set\n", ue_status_low_desc[i]);
2386 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2388 dev_err(&adapter->pdev->dev,
2389 "UE: %s bit set\n", ue_status_hi_desc[i]);
2395 static void be_msix_disable(struct be_adapter *adapter)
2397 if (msix_enabled(adapter)) {
2398 pci_disable_msix(adapter->pdev);
2399 adapter->num_msix_vec = 0;
2403 static uint be_num_rss_want(struct be_adapter *adapter)
2407 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2408 (lancer_chip(adapter) ||
2409 (!sriov_want(adapter) && be_physfn(adapter)))) {
2410 num = adapter->max_rss_queues;
2411 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2416 static int be_msix_enable(struct be_adapter *adapter)
2418 #define BE_MIN_MSIX_VECTORS 1
2419 int i, status, num_vec, num_roce_vec = 0;
2420 struct device *dev = &adapter->pdev->dev;
2422 /* If RSS queues are not used, need a vec for default RX Q */
2423 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2424 if (be_roce_supported(adapter)) {
2425 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2426 (num_online_cpus() + 1));
2427 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2428 num_vec += num_roce_vec;
2429 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2431 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2433 for (i = 0; i < num_vec; i++)
2434 adapter->msix_entries[i].entry = i;
2436 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2439 } else if (status >= BE_MIN_MSIX_VECTORS) {
2441 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2447 dev_warn(dev, "MSIx enable failed\n");
2448 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2449 if (!be_physfn(adapter))
2453 if (be_roce_supported(adapter)) {
2454 if (num_vec > num_roce_vec) {
2455 adapter->num_msix_vec = num_vec - num_roce_vec;
2456 adapter->num_msix_roce_vec =
2457 num_vec - adapter->num_msix_vec;
2459 adapter->num_msix_vec = num_vec;
2460 adapter->num_msix_roce_vec = 0;
2463 adapter->num_msix_vec = num_vec;
2464 dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
2468 static inline int be_msix_vec_get(struct be_adapter *adapter,
2469 struct be_eq_obj *eqo)
2471 return adapter->msix_entries[eqo->idx].vector;
2474 static int be_msix_register(struct be_adapter *adapter)
2476 struct net_device *netdev = adapter->netdev;
2477 struct be_eq_obj *eqo;
2480 for_all_evt_queues(adapter, eqo, i) {
2481 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2482 vec = be_msix_vec_get(adapter, eqo);
2483 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2490 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2491 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2492 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2494 be_msix_disable(adapter);
2498 static int be_irq_register(struct be_adapter *adapter)
2500 struct net_device *netdev = adapter->netdev;
2503 if (msix_enabled(adapter)) {
2504 status = be_msix_register(adapter);
2507 /* INTx is not supported for VF */
2508 if (!be_physfn(adapter))
2512 /* INTx: only the first EQ is used */
2513 netdev->irq = adapter->pdev->irq;
2514 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2515 &adapter->eq_obj[0]);
2517 dev_err(&adapter->pdev->dev,
2518 "INTx request IRQ failed - err %d\n", status);
2522 adapter->isr_registered = true;
2526 static void be_irq_unregister(struct be_adapter *adapter)
2528 struct net_device *netdev = adapter->netdev;
2529 struct be_eq_obj *eqo;
2532 if (!adapter->isr_registered)
2536 if (!msix_enabled(adapter)) {
2537 free_irq(netdev->irq, &adapter->eq_obj[0]);
2542 for_all_evt_queues(adapter, eqo, i)
2543 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2546 adapter->isr_registered = false;
2549 static void be_rx_qs_destroy(struct be_adapter *adapter)
2551 struct be_queue_info *q;
2552 struct be_rx_obj *rxo;
2555 for_all_rx_queues(adapter, rxo, i) {
2558 be_cmd_rxq_destroy(adapter, q);
2559 be_rx_cq_clean(rxo);
2561 be_queue_free(adapter, q);
2565 static int be_close(struct net_device *netdev)
2567 struct be_adapter *adapter = netdev_priv(netdev);
2568 struct be_eq_obj *eqo;
2571 be_roce_dev_close(adapter);
2573 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2574 for_all_evt_queues(adapter, eqo, i)
2575 napi_disable(&eqo->napi);
2576 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2579 be_async_mcc_disable(adapter);
2581 /* Wait for all pending tx completions to arrive so that
2582 * all tx skbs are freed.
2584 be_tx_compl_clean(adapter);
2585 netif_tx_disable(netdev);
2587 be_rx_qs_destroy(adapter);
2589 for_all_evt_queues(adapter, eqo, i) {
2590 if (msix_enabled(adapter))
2591 synchronize_irq(be_msix_vec_get(adapter, eqo));
2593 synchronize_irq(netdev->irq);
2597 be_irq_unregister(adapter);
2602 static int be_rx_qs_create(struct be_adapter *adapter)
2604 struct be_rx_obj *rxo;
2608 for_all_rx_queues(adapter, rxo, i) {
2609 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2610 sizeof(struct be_eth_rx_d));
2615 /* The FW would like the default RXQ to be created first */
2616 rxo = default_rxo(adapter);
2617 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2618 adapter->if_handle, false, &rxo->rss_id);
2622 for_all_rss_queues(adapter, rxo, i) {
2623 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2624 rx_frag_size, adapter->if_handle,
2625 true, &rxo->rss_id);
2630 if (be_multi_rxq(adapter)) {
2631 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2632 for_all_rss_queues(adapter, rxo, i) {
2635 rsstable[j + i] = rxo->rss_id;
2638 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2639 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2641 if (!BEx_chip(adapter))
2642 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2643 RSS_ENABLE_UDP_IPV6;
2645 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2648 adapter->rss_flags = 0;
2653 /* First time posting */
2654 for_all_rx_queues(adapter, rxo, i)
2655 be_post_rx_frags(rxo, GFP_KERNEL);
2659 static int be_open(struct net_device *netdev)
2661 struct be_adapter *adapter = netdev_priv(netdev);
2662 struct be_eq_obj *eqo;
2663 struct be_rx_obj *rxo;
2664 struct be_tx_obj *txo;
2668 status = be_rx_qs_create(adapter);
2672 status = be_irq_register(adapter);
2676 for_all_rx_queues(adapter, rxo, i)
2677 be_cq_notify(adapter, rxo->cq.id, true, 0);
2679 for_all_tx_queues(adapter, txo, i)
2680 be_cq_notify(adapter, txo->cq.id, true, 0);
2682 be_async_mcc_enable(adapter);
2684 for_all_evt_queues(adapter, eqo, i) {
2685 napi_enable(&eqo->napi);
2686 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2688 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2690 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2692 be_link_status_update(adapter, link_status);
2694 netif_tx_start_all_queues(netdev);
2695 be_roce_dev_open(adapter);
2698 be_close(adapter->netdev);
2702 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2704 struct be_dma_mem cmd;
2708 memset(mac, 0, ETH_ALEN);
2710 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2711 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2712 GFP_KERNEL | __GFP_ZERO);
2717 status = pci_write_config_dword(adapter->pdev,
2718 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2720 dev_err(&adapter->pdev->dev,
2721 "Could not enable Wake-on-lan\n");
2722 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2726 status = be_cmd_enable_magic_wol(adapter,
2727 adapter->netdev->dev_addr, &cmd);
2728 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2729 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2731 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2732 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2733 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2736 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2741 * Generate a seed MAC address from the PF MAC Address using jhash.
2742 * MAC Address for VFs are assigned incrementally starting from the seed.
2743 * These addresses are programmed in the ASIC by the PF and the VF driver
2744 * queries for the MAC address during its probe.
2746 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2751 struct be_vf_cfg *vf_cfg;
2753 be_vf_eth_addr_generate(adapter, mac);
2755 for_all_vfs(adapter, vf_cfg, vf) {
2756 if (lancer_chip(adapter)) {
2757 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2759 status = be_cmd_pmac_add(adapter, mac,
2761 &vf_cfg->pmac_id, vf + 1);
2765 dev_err(&adapter->pdev->dev,
2766 "Mac address assignment failed for VF %d\n", vf);
2768 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2775 static int be_vfs_mac_query(struct be_adapter *adapter)
2779 struct be_vf_cfg *vf_cfg;
2782 for_all_vfs(adapter, vf_cfg, vf) {
2783 be_cmd_get_mac_from_list(adapter, mac, &active,
2784 &vf_cfg->pmac_id, 0);
2786 status = be_cmd_mac_addr_query(adapter, mac, false,
2787 vf_cfg->if_handle, 0);
2790 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2795 static void be_vf_clear(struct be_adapter *adapter)
2797 struct be_vf_cfg *vf_cfg;
2800 if (be_find_vfs(adapter, ASSIGNED)) {
2801 dev_warn(&adapter->pdev->dev,
2802 "VFs are assigned to VMs: not disabling VFs\n");
2806 pci_disable_sriov(adapter->pdev);
2808 for_all_vfs(adapter, vf_cfg, vf) {
2809 if (lancer_chip(adapter))
2810 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2812 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2813 vf_cfg->pmac_id, vf + 1);
2815 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2818 kfree(adapter->vf_cfg);
2819 adapter->num_vfs = 0;
2822 static int be_clear(struct be_adapter *adapter)
2826 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2827 cancel_delayed_work_sync(&adapter->work);
2828 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2831 if (sriov_enabled(adapter))
2832 be_vf_clear(adapter);
2834 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2835 be_cmd_pmac_del(adapter, adapter->if_handle,
2836 adapter->pmac_id[i], 0);
2838 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2840 be_mcc_queues_destroy(adapter);
2841 be_rx_cqs_destroy(adapter);
2842 be_tx_queues_destroy(adapter);
2843 be_evt_queues_destroy(adapter);
2845 kfree(adapter->pmac_id);
2846 adapter->pmac_id = NULL;
2848 be_msix_disable(adapter);
2852 static int be_vfs_if_create(struct be_adapter *adapter)
2854 struct be_vf_cfg *vf_cfg;
2855 u32 cap_flags, en_flags, vf;
2858 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2859 BE_IF_FLAGS_MULTICAST;
2861 for_all_vfs(adapter, vf_cfg, vf) {
2862 if (!BE3_chip(adapter))
2863 be_cmd_get_profile_config(adapter, &cap_flags,
2866 /* If a FW profile exists, then cap_flags are updated */
2867 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2868 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2869 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2870 &vf_cfg->if_handle, vf + 1);
2878 static int be_vf_setup_init(struct be_adapter *adapter)
2880 struct be_vf_cfg *vf_cfg;
2883 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2885 if (!adapter->vf_cfg)
2888 for_all_vfs(adapter, vf_cfg, vf) {
2889 vf_cfg->if_handle = -1;
2890 vf_cfg->pmac_id = -1;
2895 static int be_vf_setup(struct be_adapter *adapter)
2897 struct be_vf_cfg *vf_cfg;
2898 u16 def_vlan, lnk_speed;
2899 int status, old_vfs, vf;
2900 struct device *dev = &adapter->pdev->dev;
2902 old_vfs = be_find_vfs(adapter, ENABLED);
2904 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2905 if (old_vfs != num_vfs)
2906 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2907 adapter->num_vfs = old_vfs;
2909 if (num_vfs > adapter->dev_num_vfs)
2910 dev_info(dev, "Device supports %d VFs and not %d\n",
2911 adapter->dev_num_vfs, num_vfs);
2912 adapter->num_vfs = min_t(u16, num_vfs, adapter->dev_num_vfs);
2913 if (!adapter->num_vfs)
2917 status = be_vf_setup_init(adapter);
2922 for_all_vfs(adapter, vf_cfg, vf) {
2923 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2928 status = be_vfs_if_create(adapter);
2934 status = be_vfs_mac_query(adapter);
2938 status = be_vf_eth_addr_config(adapter);
2943 for_all_vfs(adapter, vf_cfg, vf) {
2944 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2945 * Allow full available bandwidth
2947 if (BE3_chip(adapter) && !old_vfs)
2948 be_cmd_set_qos(adapter, 1000, vf+1);
2950 status = be_cmd_link_status_query(adapter, &lnk_speed,
2953 vf_cfg->tx_rate = lnk_speed;
2955 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2956 vf + 1, vf_cfg->if_handle);
2959 vf_cfg->def_vid = def_vlan;
2961 be_cmd_enable_vf(adapter, vf + 1);
2965 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
2967 dev_err(dev, "SRIOV enable failed\n");
2968 adapter->num_vfs = 0;
2974 dev_err(dev, "VF setup failed\n");
2975 be_vf_clear(adapter);
2979 static void be_setup_init(struct be_adapter *adapter)
2981 adapter->vlan_prio_bmap = 0xff;
2982 adapter->phy.link_speed = -1;
2983 adapter->if_handle = -1;
2984 adapter->be3_native = false;
2985 adapter->promiscuous = false;
2986 if (be_physfn(adapter))
2987 adapter->cmd_privileges = MAX_PRIVILEGES;
2989 adapter->cmd_privileges = MIN_PRIVILEGES;
2992 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2993 bool *active_mac, u32 *pmac_id)
2997 if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2998 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2999 if (!lancer_chip(adapter) && !be_physfn(adapter))
3002 *active_mac = false;
3007 if (lancer_chip(adapter)) {
3008 status = be_cmd_get_mac_from_list(adapter, mac,
3009 active_mac, pmac_id, 0);
3011 status = be_cmd_mac_addr_query(adapter, mac, false,
3012 if_handle, *pmac_id);
3014 } else if (be_physfn(adapter)) {
3015 /* For BE3, for PF get permanent MAC */
3016 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
3017 *active_mac = false;
3019 /* For BE3, for VF get soft MAC assigned by PF*/
3020 status = be_cmd_mac_addr_query(adapter, mac, false,
3027 static void be_get_resources(struct be_adapter *adapter)
3031 bool profile_present = false;
3034 if (!BEx_chip(adapter)) {
3035 status = be_cmd_get_func_config(adapter);
3037 profile_present = true;
3038 } else if (BE3_chip(adapter) && be_physfn(adapter)) {
3039 be_cmd_get_profile_config(adapter, NULL, &txq_count, 0);
3042 if (profile_present) {
3043 /* Sanity fixes for Lancer */
3044 adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
3046 adapter->max_vlans = min_t(u16, adapter->max_vlans,
3047 BE_NUM_VLANS_SUPPORTED);
3048 adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
3050 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
3052 adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
3054 adapter->max_event_queues = min_t(u16,
3055 adapter->max_event_queues,
3058 if (adapter->max_rss_queues &&
3059 adapter->max_rss_queues == adapter->max_rx_queues)
3060 adapter->max_rss_queues -= 1;
3062 if (adapter->max_event_queues < adapter->max_rss_queues)
3063 adapter->max_rss_queues = adapter->max_event_queues;
3066 if (be_physfn(adapter))
3067 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3069 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3071 if (adapter->function_mode & FLEX10_MODE)
3072 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3074 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3076 adapter->max_mcast_mac = BE_MAX_MC;
3077 adapter->max_tx_queues = txq_count ? txq_count : MAX_TX_QS;
3078 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
3080 adapter->max_rss_queues = (adapter->be3_native) ?
3081 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3082 adapter->max_event_queues = BE3_MAX_RSS_QS;
3084 adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
3085 BE_IF_FLAGS_BROADCAST |
3086 BE_IF_FLAGS_MULTICAST |
3087 BE_IF_FLAGS_PASS_L3L4_ERRORS |
3088 BE_IF_FLAGS_MCAST_PROMISCUOUS |
3089 BE_IF_FLAGS_VLAN_PROMISCUOUS |
3090 BE_IF_FLAGS_PROMISCUOUS;
3092 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3093 adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
3096 pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
3098 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
3100 if (BE3_chip(adapter))
3101 dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
3102 adapter->dev_num_vfs = dev_num_vfs;
3106 /* Routine to query per function resource limits */
3107 static int be_get_config(struct be_adapter *adapter)
3111 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3112 &adapter->function_mode,
3113 &adapter->function_caps,
3114 &adapter->asic_rev);
3118 be_get_resources(adapter);
3120 /* primary mac needs 1 pmac entry */
3121 adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3122 sizeof(u32), GFP_KERNEL);
3123 if (!adapter->pmac_id) {
3132 static int be_setup(struct be_adapter *adapter)
3134 struct device *dev = &adapter->pdev->dev;
3141 be_setup_init(adapter);
3143 if (!lancer_chip(adapter))
3144 be_cmd_req_native_mode(adapter);
3146 status = be_get_config(adapter);
3150 status = be_msix_enable(adapter);
3154 status = be_evt_queues_create(adapter);
3158 status = be_tx_cqs_create(adapter);
3162 status = be_rx_cqs_create(adapter);
3166 status = be_mcc_queues_create(adapter);
3170 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3171 /* In UMC mode FW does not return right privileges.
3172 * Override with correct privilege equivalent to PF.
3174 if (be_is_mc(adapter))
3175 adapter->cmd_privileges = MAX_PRIVILEGES;
3177 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3178 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3180 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3181 en_flags |= BE_IF_FLAGS_RSS;
3183 en_flags = en_flags & adapter->if_cap_flags;
3185 status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
3186 &adapter->if_handle, 0);
3190 memset(mac, 0, ETH_ALEN);
3192 status = be_get_mac_addr(adapter, mac, adapter->if_handle,
3193 &active_mac, &adapter->pmac_id[0]);
3198 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3199 &adapter->pmac_id[0], 0);
3204 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3205 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3206 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3209 status = be_tx_qs_create(adapter);
3213 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3215 if (adapter->vlans_added)
3216 be_vid_config(adapter);
3218 be_set_rx_mode(adapter->netdev);
3220 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3222 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3223 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3226 if (be_physfn(adapter)) {
3227 if (adapter->dev_num_vfs)
3228 be_vf_setup(adapter);
3230 dev_warn(dev, "device doesn't support SRIOV\n");
3233 status = be_cmd_get_phy_info(adapter);
3234 if (!status && be_pause_supported(adapter))
3235 adapter->phy.fc_autoneg = 1;
3237 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3238 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3245 #ifdef CONFIG_NET_POLL_CONTROLLER
3246 static void be_netpoll(struct net_device *netdev)
3248 struct be_adapter *adapter = netdev_priv(netdev);
3249 struct be_eq_obj *eqo;
3252 for_all_evt_queues(adapter, eqo, i) {
3253 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3254 napi_schedule(&eqo->napi);
3261 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3262 char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3264 static bool be_flash_redboot(struct be_adapter *adapter,
3265 const u8 *p, u32 img_start, int image_size,
3272 crc_offset = hdr_size + img_start + image_size - 4;
3276 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3279 dev_err(&adapter->pdev->dev,
3280 "could not get crc from flash, not flashing redboot\n");
3284 /*update redboot only if crc does not match*/
3285 if (!memcmp(flashed_crc, p, 4))
3291 static bool phy_flashing_required(struct be_adapter *adapter)
3293 return (adapter->phy.phy_type == TN_8022 &&
3294 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3297 static bool is_comp_in_ufi(struct be_adapter *adapter,
3298 struct flash_section_info *fsec, int type)
3300 int i = 0, img_type = 0;
3301 struct flash_section_info_g2 *fsec_g2 = NULL;
3303 if (BE2_chip(adapter))
3304 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3306 for (i = 0; i < MAX_FLASH_COMP; i++) {
3308 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3310 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3312 if (img_type == type)
3319 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3321 const struct firmware *fw)
3323 struct flash_section_info *fsec = NULL;
3324 const u8 *p = fw->data;
3327 while (p < (fw->data + fw->size)) {
3328 fsec = (struct flash_section_info *)p;
3329 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3336 static int be_flash(struct be_adapter *adapter, const u8 *img,
3337 struct be_dma_mem *flash_cmd, int optype, int img_size)
3339 u32 total_bytes = 0, flash_op, num_bytes = 0;
3341 struct be_cmd_write_flashrom *req = flash_cmd->va;
3343 total_bytes = img_size;
3344 while (total_bytes) {
3345 num_bytes = min_t(u32, 32*1024, total_bytes);
3347 total_bytes -= num_bytes;
3350 if (optype == OPTYPE_PHY_FW)
3351 flash_op = FLASHROM_OPER_PHY_FLASH;
3353 flash_op = FLASHROM_OPER_FLASH;
3355 if (optype == OPTYPE_PHY_FW)
3356 flash_op = FLASHROM_OPER_PHY_SAVE;
3358 flash_op = FLASHROM_OPER_SAVE;
3361 memcpy(req->data_buf, img, num_bytes);
3363 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3364 flash_op, num_bytes);
3366 if (status == ILLEGAL_IOCTL_REQ &&
3367 optype == OPTYPE_PHY_FW)
3369 dev_err(&adapter->pdev->dev,
3370 "cmd to write to flash rom failed.\n");
3377 /* For BE2, BE3 and BE3-R */
3378 static int be_flash_BEx(struct be_adapter *adapter,
3379 const struct firmware *fw,
3380 struct be_dma_mem *flash_cmd,
3384 int status = 0, i, filehdr_size = 0;
3385 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3386 const u8 *p = fw->data;
3387 const struct flash_comp *pflashcomp;
3388 int num_comp, redboot;
3389 struct flash_section_info *fsec = NULL;
3391 struct flash_comp gen3_flash_types[] = {
3392 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3393 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3394 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3395 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3396 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3397 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3398 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3399 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3400 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3401 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3402 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3403 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3404 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3405 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3406 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3407 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3408 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3409 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3410 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3411 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3414 struct flash_comp gen2_flash_types[] = {
3415 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3416 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3417 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3418 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3419 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3420 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3421 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3422 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3423 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3424 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3425 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3426 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3427 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3428 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3429 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3430 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3433 if (BE3_chip(adapter)) {
3434 pflashcomp = gen3_flash_types;
3435 filehdr_size = sizeof(struct flash_file_hdr_g3);
3436 num_comp = ARRAY_SIZE(gen3_flash_types);
3438 pflashcomp = gen2_flash_types;
3439 filehdr_size = sizeof(struct flash_file_hdr_g2);
3440 num_comp = ARRAY_SIZE(gen2_flash_types);
3443 /* Get flash section info*/
3444 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3446 dev_err(&adapter->pdev->dev,
3447 "Invalid Cookie. UFI corrupted ?\n");
3450 for (i = 0; i < num_comp; i++) {
3451 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3454 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3455 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3458 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3459 !phy_flashing_required(adapter))
3462 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3463 redboot = be_flash_redboot(adapter, fw->data,
3464 pflashcomp[i].offset, pflashcomp[i].size,
3465 filehdr_size + img_hdrs_size);
3471 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3472 if (p + pflashcomp[i].size > fw->data + fw->size)
3475 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3476 pflashcomp[i].size);
3478 dev_err(&adapter->pdev->dev,
3479 "Flashing section type %d failed.\n",
3480 pflashcomp[i].img_type);
3487 static int be_flash_skyhawk(struct be_adapter *adapter,
3488 const struct firmware *fw,
3489 struct be_dma_mem *flash_cmd, int num_of_images)
3491 int status = 0, i, filehdr_size = 0;
3492 int img_offset, img_size, img_optype, redboot;
3493 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3494 const u8 *p = fw->data;
3495 struct flash_section_info *fsec = NULL;
3497 filehdr_size = sizeof(struct flash_file_hdr_g3);
3498 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3500 dev_err(&adapter->pdev->dev,
3501 "Invalid Cookie. UFI corrupted ?\n");
3505 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3506 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3507 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3509 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3510 case IMAGE_FIRMWARE_iSCSI:
3511 img_optype = OPTYPE_ISCSI_ACTIVE;
3513 case IMAGE_BOOT_CODE:
3514 img_optype = OPTYPE_REDBOOT;
3516 case IMAGE_OPTION_ROM_ISCSI:
3517 img_optype = OPTYPE_BIOS;
3519 case IMAGE_OPTION_ROM_PXE:
3520 img_optype = OPTYPE_PXE_BIOS;
3522 case IMAGE_OPTION_ROM_FCoE:
3523 img_optype = OPTYPE_FCOE_BIOS;
3525 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3526 img_optype = OPTYPE_ISCSI_BACKUP;
3529 img_optype = OPTYPE_NCSI_FW;
3535 if (img_optype == OPTYPE_REDBOOT) {
3536 redboot = be_flash_redboot(adapter, fw->data,
3537 img_offset, img_size,
3538 filehdr_size + img_hdrs_size);
3544 p += filehdr_size + img_offset + img_hdrs_size;
3545 if (p + img_size > fw->data + fw->size)
3548 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3550 dev_err(&adapter->pdev->dev,
3551 "Flashing section type %d failed.\n",
3552 fsec->fsec_entry[i].type);
3559 static int lancer_fw_download(struct be_adapter *adapter,
3560 const struct firmware *fw)
3562 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3563 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3564 struct be_dma_mem flash_cmd;
3565 const u8 *data_ptr = NULL;
3566 u8 *dest_image_ptr = NULL;
3567 size_t image_size = 0;
3569 u32 data_written = 0;
3575 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3576 dev_err(&adapter->pdev->dev,
3577 "FW Image not properly aligned. "
3578 "Length must be 4 byte aligned.\n");
3580 goto lancer_fw_exit;
3583 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3584 + LANCER_FW_DOWNLOAD_CHUNK;
3585 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3586 &flash_cmd.dma, GFP_KERNEL);
3587 if (!flash_cmd.va) {
3589 goto lancer_fw_exit;
3592 dest_image_ptr = flash_cmd.va +
3593 sizeof(struct lancer_cmd_req_write_object);
3594 image_size = fw->size;
3595 data_ptr = fw->data;
3597 while (image_size) {
3598 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3600 /* Copy the image chunk content. */
3601 memcpy(dest_image_ptr, data_ptr, chunk_size);
3603 status = lancer_cmd_write_object(adapter, &flash_cmd,
3605 LANCER_FW_DOWNLOAD_LOCATION,
3606 &data_written, &change_status,
3611 offset += data_written;
3612 data_ptr += data_written;
3613 image_size -= data_written;
3617 /* Commit the FW written */
3618 status = lancer_cmd_write_object(adapter, &flash_cmd,
3620 LANCER_FW_DOWNLOAD_LOCATION,
3621 &data_written, &change_status,
3625 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3628 dev_err(&adapter->pdev->dev,
3629 "Firmware load error. "
3630 "Status code: 0x%x Additional Status: 0x%x\n",
3631 status, add_status);
3632 goto lancer_fw_exit;
3635 if (change_status == LANCER_FW_RESET_NEEDED) {
3636 status = lancer_physdev_ctrl(adapter,
3637 PHYSDEV_CONTROL_FW_RESET_MASK);
3639 dev_err(&adapter->pdev->dev,
3640 "Adapter busy for FW reset.\n"
3641 "New FW will not be active.\n");
3642 goto lancer_fw_exit;
3644 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3645 dev_err(&adapter->pdev->dev,
3646 "System reboot required for new FW"
3650 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3657 #define UFI_TYPE3R 10
3659 static int be_get_ufi_type(struct be_adapter *adapter,
3660 struct flash_file_hdr_g3 *fhdr)
3663 goto be_get_ufi_exit;
3665 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3667 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3668 if (fhdr->asic_type_rev == 0x10)
3672 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3676 dev_err(&adapter->pdev->dev,
3677 "UFI and Interface are not compatible for flashing\n");
3681 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3683 struct flash_file_hdr_g3 *fhdr3;
3684 struct image_hdr *img_hdr_ptr = NULL;
3685 struct be_dma_mem flash_cmd;
3687 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3689 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3690 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3691 &flash_cmd.dma, GFP_KERNEL);
3692 if (!flash_cmd.va) {
3698 fhdr3 = (struct flash_file_hdr_g3 *)p;
3700 ufi_type = be_get_ufi_type(adapter, fhdr3);
3702 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3703 for (i = 0; i < num_imgs; i++) {
3704 img_hdr_ptr = (struct image_hdr *)(fw->data +
3705 (sizeof(struct flash_file_hdr_g3) +
3706 i * sizeof(struct image_hdr)));
3707 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3710 status = be_flash_skyhawk(adapter, fw,
3711 &flash_cmd, num_imgs);
3714 status = be_flash_BEx(adapter, fw, &flash_cmd,
3718 /* Do not flash this ufi on BE3-R cards */
3719 if (adapter->asic_rev < 0x10)
3720 status = be_flash_BEx(adapter, fw,
3725 dev_err(&adapter->pdev->dev,
3726 "Can't load BE3 UFI on BE3R\n");
3732 if (ufi_type == UFI_TYPE2)
3733 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3734 else if (ufi_type == -1)
3737 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3740 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3744 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3750 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3752 const struct firmware *fw;
3755 if (!netif_running(adapter->netdev)) {
3756 dev_err(&adapter->pdev->dev,
3757 "Firmware load not allowed (interface is down)\n");
3761 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3765 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3767 if (lancer_chip(adapter))
3768 status = lancer_fw_download(adapter, fw);
3770 status = be_fw_download(adapter, fw);
3773 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3774 adapter->fw_on_flash);
3777 release_firmware(fw);
3781 static const struct net_device_ops be_netdev_ops = {
3782 .ndo_open = be_open,
3783 .ndo_stop = be_close,
3784 .ndo_start_xmit = be_xmit,
3785 .ndo_set_rx_mode = be_set_rx_mode,
3786 .ndo_set_mac_address = be_mac_addr_set,
3787 .ndo_change_mtu = be_change_mtu,
3788 .ndo_get_stats64 = be_get_stats64,
3789 .ndo_validate_addr = eth_validate_addr,
3790 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3791 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3792 .ndo_set_vf_mac = be_set_vf_mac,
3793 .ndo_set_vf_vlan = be_set_vf_vlan,
3794 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3795 .ndo_get_vf_config = be_get_vf_config,
3796 #ifdef CONFIG_NET_POLL_CONTROLLER
3797 .ndo_poll_controller = be_netpoll,
3801 static void be_netdev_init(struct net_device *netdev)
3803 struct be_adapter *adapter = netdev_priv(netdev);
3804 struct be_eq_obj *eqo;
3807 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3808 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3809 NETIF_F_HW_VLAN_CTAG_TX;
3810 if (be_multi_rxq(adapter))
3811 netdev->hw_features |= NETIF_F_RXHASH;
3813 netdev->features |= netdev->hw_features |
3814 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3816 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3817 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3819 netdev->priv_flags |= IFF_UNICAST_FLT;
3821 netdev->flags |= IFF_MULTICAST;
3823 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3825 netdev->netdev_ops = &be_netdev_ops;
3827 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3829 for_all_evt_queues(adapter, eqo, i)
3830 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3833 static void be_unmap_pci_bars(struct be_adapter *adapter)
3836 pci_iounmap(adapter->pdev, adapter->csr);
3838 pci_iounmap(adapter->pdev, adapter->db);
3841 static int db_bar(struct be_adapter *adapter)
3843 if (lancer_chip(adapter) || !be_physfn(adapter))
3849 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3851 if (skyhawk_chip(adapter)) {
3852 adapter->roce_db.size = 4096;
3853 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3855 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3861 static int be_map_pci_bars(struct be_adapter *adapter)
3866 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3867 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3868 SLI_INTF_IF_TYPE_SHIFT;
3870 if (BEx_chip(adapter) && be_physfn(adapter)) {
3871 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3872 if (adapter->csr == NULL)
3876 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3881 be_roce_map_pci_bars(adapter);
3885 be_unmap_pci_bars(adapter);
3889 static void be_ctrl_cleanup(struct be_adapter *adapter)
3891 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3893 be_unmap_pci_bars(adapter);
3896 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3899 mem = &adapter->rx_filter;
3901 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3905 static int be_ctrl_init(struct be_adapter *adapter)
3907 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3908 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3909 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3913 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3914 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3915 SLI_INTF_FAMILY_SHIFT;
3916 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3918 status = be_map_pci_bars(adapter);
3922 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3923 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3924 mbox_mem_alloc->size,
3925 &mbox_mem_alloc->dma,
3927 if (!mbox_mem_alloc->va) {
3929 goto unmap_pci_bars;
3931 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3932 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3933 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3934 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3936 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3937 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3939 GFP_KERNEL | __GFP_ZERO);
3940 if (rx_filter->va == NULL) {
3945 mutex_init(&adapter->mbox_lock);
3946 spin_lock_init(&adapter->mcc_lock);
3947 spin_lock_init(&adapter->mcc_cq_lock);
3949 init_completion(&adapter->flash_compl);
3950 pci_save_state(adapter->pdev);
3954 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3955 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3958 be_unmap_pci_bars(adapter);
3964 static void be_stats_cleanup(struct be_adapter *adapter)
3966 struct be_dma_mem *cmd = &adapter->stats_cmd;
3969 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3973 static int be_stats_init(struct be_adapter *adapter)
3975 struct be_dma_mem *cmd = &adapter->stats_cmd;
3977 if (lancer_chip(adapter))
3978 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3979 else if (BE2_chip(adapter))
3980 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3982 /* BE3 and Skyhawk */
3983 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3985 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3986 GFP_KERNEL | __GFP_ZERO);
3987 if (cmd->va == NULL)
3992 static void be_remove(struct pci_dev *pdev)
3994 struct be_adapter *adapter = pci_get_drvdata(pdev);
3999 be_roce_dev_remove(adapter);
4000 be_intr_set(adapter, false);
4002 cancel_delayed_work_sync(&adapter->func_recovery_work);
4004 unregister_netdev(adapter->netdev);
4008 /* tell fw we're done with firing cmds */
4009 be_cmd_fw_clean(adapter);
4011 be_stats_cleanup(adapter);
4013 be_ctrl_cleanup(adapter);
4015 pci_disable_pcie_error_reporting(pdev);
4017 pci_set_drvdata(pdev, NULL);
4018 pci_release_regions(pdev);
4019 pci_disable_device(pdev);
4021 free_netdev(adapter->netdev);
4024 bool be_is_wol_supported(struct be_adapter *adapter)
4026 return ((adapter->wol_cap & BE_WOL_CAP) &&
4027 !be_is_wol_excluded(adapter)) ? true : false;
4030 u32 be_get_fw_log_level(struct be_adapter *adapter)
4032 struct be_dma_mem extfat_cmd;
4033 struct be_fat_conf_params *cfgs;
4038 if (lancer_chip(adapter))
4041 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4042 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4043 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4046 if (!extfat_cmd.va) {
4047 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4052 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4054 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4055 sizeof(struct be_cmd_resp_hdr));
4056 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4057 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4058 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4061 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4067 static int be_get_initial_config(struct be_adapter *adapter)
4072 status = be_cmd_get_cntl_attributes(adapter);
4076 status = be_cmd_get_acpi_wol_cap(adapter);
4078 /* in case of a failure to get wol capabillities
4079 * check the exclusion list to determine WOL capability */
4080 if (!be_is_wol_excluded(adapter))
4081 adapter->wol_cap |= BE_WOL_CAP;
4084 if (be_is_wol_supported(adapter))
4085 adapter->wol = true;
4087 /* Must be a power of 2 or else MODULO will BUG_ON */
4088 adapter->be_get_temp_freq = 64;
4090 level = be_get_fw_log_level(adapter);
4091 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4096 static int lancer_recover_func(struct be_adapter *adapter)
4098 struct device *dev = &adapter->pdev->dev;
4101 status = lancer_test_and_set_rdy_state(adapter);
4105 if (netif_running(adapter->netdev))
4106 be_close(adapter->netdev);
4110 be_clear_all_error(adapter);
4112 status = be_setup(adapter);
4116 if (netif_running(adapter->netdev)) {
4117 status = be_open(adapter->netdev);
4122 dev_err(dev, "Error recovery successful\n");
4125 if (status == -EAGAIN)
4126 dev_err(dev, "Waiting for resource provisioning\n");
4128 dev_err(dev, "Error recovery failed\n");
4133 static void be_func_recovery_task(struct work_struct *work)
4135 struct be_adapter *adapter =
4136 container_of(work, struct be_adapter, func_recovery_work.work);
4139 be_detect_error(adapter);
4141 if (adapter->hw_error && lancer_chip(adapter)) {
4144 netif_device_detach(adapter->netdev);
4147 status = lancer_recover_func(adapter);
4149 netif_device_attach(adapter->netdev);
4152 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4153 * no need to attempt further recovery.
4155 if (!status || status == -EAGAIN)
4156 schedule_delayed_work(&adapter->func_recovery_work,
4157 msecs_to_jiffies(1000));
4160 static void be_worker(struct work_struct *work)
4162 struct be_adapter *adapter =
4163 container_of(work, struct be_adapter, work.work);
4164 struct be_rx_obj *rxo;
4165 struct be_eq_obj *eqo;
4168 /* when interrupts are not yet enabled, just reap any pending
4169 * mcc completions */
4170 if (!netif_running(adapter->netdev)) {
4172 be_process_mcc(adapter);
4177 if (!adapter->stats_cmd_sent) {
4178 if (lancer_chip(adapter))
4179 lancer_cmd_get_pport_stats(adapter,
4180 &adapter->stats_cmd);
4182 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4185 if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4186 be_cmd_get_die_temperature(adapter);
4188 for_all_rx_queues(adapter, rxo, i) {
4189 if (rxo->rx_post_starved) {
4190 rxo->rx_post_starved = false;
4191 be_post_rx_frags(rxo, GFP_KERNEL);
4195 for_all_evt_queues(adapter, eqo, i)
4196 be_eqd_update(adapter, eqo);
4199 adapter->work_counter++;
4200 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4203 static bool be_reset_required(struct be_adapter *adapter)
4205 return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
4208 static char *mc_name(struct be_adapter *adapter)
4210 if (adapter->function_mode & FLEX10_MODE)
4212 else if (adapter->function_mode & VNIC_MODE)
4214 else if (adapter->function_mode & UMC_ENABLED)
4220 static inline char *func_name(struct be_adapter *adapter)
4222 return be_physfn(adapter) ? "PF" : "VF";
4225 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4228 struct be_adapter *adapter;
4229 struct net_device *netdev;
4232 status = pci_enable_device(pdev);
4236 status = pci_request_regions(pdev, DRV_NAME);
4239 pci_set_master(pdev);
4241 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4242 if (netdev == NULL) {
4246 adapter = netdev_priv(netdev);
4247 adapter->pdev = pdev;
4248 pci_set_drvdata(pdev, adapter);
4249 adapter->netdev = netdev;
4250 SET_NETDEV_DEV(netdev, &pdev->dev);
4252 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4254 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4256 dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4259 netdev->features |= NETIF_F_HIGHDMA;
4261 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4263 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4268 status = pci_enable_pcie_error_reporting(pdev);
4270 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
4272 status = be_ctrl_init(adapter);
4276 /* sync up with fw's ready state */
4277 if (be_physfn(adapter)) {
4278 status = be_fw_wait_ready(adapter);
4283 if (be_reset_required(adapter)) {
4284 status = be_cmd_reset_function(adapter);
4288 /* Wait for interrupts to quiesce after an FLR */
4292 /* Allow interrupts for other ULPs running on NIC function */
4293 be_intr_set(adapter, true);
4295 /* tell fw we're ready to fire cmds */
4296 status = be_cmd_fw_init(adapter);
4300 status = be_stats_init(adapter);
4304 status = be_get_initial_config(adapter);
4308 INIT_DELAYED_WORK(&adapter->work, be_worker);
4309 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4310 adapter->rx_fc = adapter->tx_fc = true;
4312 status = be_setup(adapter);
4316 be_netdev_init(netdev);
4317 status = register_netdev(netdev);
4321 be_roce_dev_add(adapter);
4323 schedule_delayed_work(&adapter->func_recovery_work,
4324 msecs_to_jiffies(1000));
4326 be_cmd_query_port_name(adapter, &port_name);
4328 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4329 func_name(adapter), mc_name(adapter), port_name);
4336 be_stats_cleanup(adapter);
4338 be_ctrl_cleanup(adapter);
4340 free_netdev(netdev);
4341 pci_set_drvdata(pdev, NULL);
4343 pci_release_regions(pdev);
4345 pci_disable_device(pdev);
4347 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4351 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4353 struct be_adapter *adapter = pci_get_drvdata(pdev);
4354 struct net_device *netdev = adapter->netdev;
4357 be_setup_wol(adapter, true);
4359 cancel_delayed_work_sync(&adapter->func_recovery_work);
4361 netif_device_detach(netdev);
4362 if (netif_running(netdev)) {
4369 pci_save_state(pdev);
4370 pci_disable_device(pdev);
4371 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4375 static int be_resume(struct pci_dev *pdev)
4378 struct be_adapter *adapter = pci_get_drvdata(pdev);
4379 struct net_device *netdev = adapter->netdev;
4381 netif_device_detach(netdev);
4383 status = pci_enable_device(pdev);
4387 pci_set_power_state(pdev, 0);
4388 pci_restore_state(pdev);
4390 /* tell fw we're ready to fire cmds */
4391 status = be_cmd_fw_init(adapter);
4396 if (netif_running(netdev)) {
4402 schedule_delayed_work(&adapter->func_recovery_work,
4403 msecs_to_jiffies(1000));
4404 netif_device_attach(netdev);
4407 be_setup_wol(adapter, false);
4413 * An FLR will stop BE from DMAing any data.
4415 static void be_shutdown(struct pci_dev *pdev)
4417 struct be_adapter *adapter = pci_get_drvdata(pdev);
4422 cancel_delayed_work_sync(&adapter->work);
4423 cancel_delayed_work_sync(&adapter->func_recovery_work);
4425 netif_device_detach(adapter->netdev);
4427 be_cmd_reset_function(adapter);
4429 pci_disable_device(pdev);
4432 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4433 pci_channel_state_t state)
4435 struct be_adapter *adapter = pci_get_drvdata(pdev);
4436 struct net_device *netdev = adapter->netdev;
4438 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4440 if (!adapter->eeh_error) {
4441 adapter->eeh_error = true;
4443 cancel_delayed_work_sync(&adapter->func_recovery_work);
4446 netif_device_detach(netdev);
4447 if (netif_running(netdev))
4454 if (state == pci_channel_io_perm_failure)
4455 return PCI_ERS_RESULT_DISCONNECT;
4457 pci_disable_device(pdev);
4459 /* The error could cause the FW to trigger a flash debug dump.
4460 * Resetting the card while flash dump is in progress
4461 * can cause it not to recover; wait for it to finish.
4462 * Wait only for first function as it is needed only once per
4465 if (pdev->devfn == 0)
4468 return PCI_ERS_RESULT_NEED_RESET;
4471 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4473 struct be_adapter *adapter = pci_get_drvdata(pdev);
4476 dev_info(&adapter->pdev->dev, "EEH reset\n");
4478 status = pci_enable_device(pdev);
4480 return PCI_ERS_RESULT_DISCONNECT;
4482 pci_set_master(pdev);
4483 pci_set_power_state(pdev, 0);
4484 pci_restore_state(pdev);
4486 /* Check if card is ok and fw is ready */
4487 dev_info(&adapter->pdev->dev,
4488 "Waiting for FW to be ready after EEH reset\n");
4489 status = be_fw_wait_ready(adapter);
4491 return PCI_ERS_RESULT_DISCONNECT;
4493 pci_cleanup_aer_uncorrect_error_status(pdev);
4494 be_clear_all_error(adapter);
4495 return PCI_ERS_RESULT_RECOVERED;
4498 static void be_eeh_resume(struct pci_dev *pdev)
4501 struct be_adapter *adapter = pci_get_drvdata(pdev);
4502 struct net_device *netdev = adapter->netdev;
4504 dev_info(&adapter->pdev->dev, "EEH resume\n");
4506 pci_save_state(pdev);
4508 status = be_cmd_reset_function(adapter);
4512 /* tell fw we're ready to fire cmds */
4513 status = be_cmd_fw_init(adapter);
4517 status = be_setup(adapter);
4521 if (netif_running(netdev)) {
4522 status = be_open(netdev);
4527 schedule_delayed_work(&adapter->func_recovery_work,
4528 msecs_to_jiffies(1000));
4529 netif_device_attach(netdev);
4532 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4535 static const struct pci_error_handlers be_eeh_handlers = {
4536 .error_detected = be_eeh_err_detected,
4537 .slot_reset = be_eeh_reset,
4538 .resume = be_eeh_resume,
4541 static struct pci_driver be_driver = {
4543 .id_table = be_dev_ids,
4545 .remove = be_remove,
4546 .suspend = be_suspend,
4547 .resume = be_resume,
4548 .shutdown = be_shutdown,
4549 .err_handler = &be_eeh_handlers
4552 static int __init be_init_module(void)
4554 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4555 rx_frag_size != 2048) {
4556 printk(KERN_WARNING DRV_NAME
4557 " : Module param rx_frag_size must be 2048/4096/8192."
4559 rx_frag_size = 2048;
4562 return pci_register_driver(&be_driver);
4564 module_init(be_init_module);
4566 static void __exit be_exit_module(void)
4568 pci_unregister_driver(&be_driver);
4570 module_exit(be_exit_module);