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_mismatch_drops =
357 port_stats->rx_address_mismatch_drops +
358 port_stats->rx_vlan_mismatch_drops;
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_mismatch_drops = port_stats->rx_address_mismatch_drops;
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->jabber_events = port_stats->jabber_events;
414 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
415 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
416 drvs->forwarded_packets = rxf_stats->forwarded_packets;
417 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
418 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
419 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
420 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
423 static void populate_lancer_stats(struct be_adapter *adapter)
426 struct be_drv_stats *drvs = &adapter->drv_stats;
427 struct lancer_pport_stats *pport_stats =
428 pport_stats_from_cmd(adapter);
430 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
431 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
432 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
433 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
434 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
435 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
436 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
437 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
438 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
439 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
440 drvs->rx_dropped_tcp_length =
441 pport_stats->rx_dropped_invalid_tcp_length;
442 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
443 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
444 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
445 drvs->rx_dropped_header_too_small =
446 pport_stats->rx_dropped_header_too_small;
447 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
448 drvs->rx_address_mismatch_drops =
449 pport_stats->rx_address_mismatch_drops +
450 pport_stats->rx_vlan_mismatch_drops;
451 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
452 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
453 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
454 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
455 drvs->jabber_events = pport_stats->rx_jabbers;
456 drvs->forwarded_packets = pport_stats->num_forwards_lo;
457 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
458 drvs->rx_drops_too_many_frags =
459 pport_stats->rx_drops_too_many_frags_lo;
462 static void accumulate_16bit_val(u32 *acc, u16 val)
464 #define lo(x) (x & 0xFFFF)
465 #define hi(x) (x & 0xFFFF0000)
466 bool wrapped = val < lo(*acc);
467 u32 newacc = hi(*acc) + val;
471 ACCESS_ONCE(*acc) = newacc;
474 void be_parse_stats(struct be_adapter *adapter)
476 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
477 struct be_rx_obj *rxo;
480 if (lancer_chip(adapter)) {
481 populate_lancer_stats(adapter);
483 if (BE2_chip(adapter))
484 populate_be_v0_stats(adapter);
486 /* for BE3 and Skyhawk */
487 populate_be_v1_stats(adapter);
489 /* as erx_v1 is longer than v0, ok to use v1 for v0 access */
490 for_all_rx_queues(adapter, rxo, i) {
491 /* below erx HW counter can actually wrap around after
492 * 65535. Driver accumulates a 32-bit value
494 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
495 (u16)erx->rx_drops_no_fragments \
501 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
502 struct rtnl_link_stats64 *stats)
504 struct be_adapter *adapter = netdev_priv(netdev);
505 struct be_drv_stats *drvs = &adapter->drv_stats;
506 struct be_rx_obj *rxo;
507 struct be_tx_obj *txo;
512 for_all_rx_queues(adapter, rxo, i) {
513 const struct be_rx_stats *rx_stats = rx_stats(rxo);
515 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
516 pkts = rx_stats(rxo)->rx_pkts;
517 bytes = rx_stats(rxo)->rx_bytes;
518 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
519 stats->rx_packets += pkts;
520 stats->rx_bytes += bytes;
521 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
522 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
523 rx_stats(rxo)->rx_drops_no_frags;
526 for_all_tx_queues(adapter, txo, i) {
527 const struct be_tx_stats *tx_stats = tx_stats(txo);
529 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
530 pkts = tx_stats(txo)->tx_pkts;
531 bytes = tx_stats(txo)->tx_bytes;
532 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
533 stats->tx_packets += pkts;
534 stats->tx_bytes += bytes;
537 /* bad pkts received */
538 stats->rx_errors = drvs->rx_crc_errors +
539 drvs->rx_alignment_symbol_errors +
540 drvs->rx_in_range_errors +
541 drvs->rx_out_range_errors +
542 drvs->rx_frame_too_long +
543 drvs->rx_dropped_too_small +
544 drvs->rx_dropped_too_short +
545 drvs->rx_dropped_header_too_small +
546 drvs->rx_dropped_tcp_length +
547 drvs->rx_dropped_runt;
549 /* detailed rx errors */
550 stats->rx_length_errors = drvs->rx_in_range_errors +
551 drvs->rx_out_range_errors +
552 drvs->rx_frame_too_long;
554 stats->rx_crc_errors = drvs->rx_crc_errors;
556 /* frame alignment errors */
557 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
559 /* receiver fifo overrun */
560 /* drops_no_pbuf is no per i/f, it's per BE card */
561 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
562 drvs->rx_input_fifo_overflow_drop +
563 drvs->rx_drops_no_pbuf;
567 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
569 struct net_device *netdev = adapter->netdev;
571 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
572 netif_carrier_off(netdev);
573 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
576 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
577 netif_carrier_on(netdev);
579 netif_carrier_off(netdev);
582 static void be_tx_stats_update(struct be_tx_obj *txo,
583 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
585 struct be_tx_stats *stats = tx_stats(txo);
587 u64_stats_update_begin(&stats->sync);
589 stats->tx_wrbs += wrb_cnt;
590 stats->tx_bytes += copied;
591 stats->tx_pkts += (gso_segs ? gso_segs : 1);
594 u64_stats_update_end(&stats->sync);
597 /* Determine number of WRB entries needed to xmit data in an skb */
598 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
601 int cnt = (skb->len > skb->data_len);
603 cnt += skb_shinfo(skb)->nr_frags;
605 /* to account for hdr wrb */
607 if (lancer_chip(adapter) || !(cnt & 1)) {
610 /* add a dummy to make it an even num */
614 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
618 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
620 wrb->frag_pa_hi = upper_32_bits(addr);
621 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
622 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
626 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
632 vlan_tag = vlan_tx_tag_get(skb);
633 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
634 /* If vlan priority provided by OS is NOT in available bmap */
635 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
636 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
637 adapter->recommended_prio;
642 static int be_vlan_tag_chk(struct be_adapter *adapter, struct sk_buff *skb)
644 return vlan_tx_tag_present(skb) || adapter->pvid;
647 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
648 struct sk_buff *skb, u32 wrb_cnt, u32 len)
652 memset(hdr, 0, sizeof(*hdr));
654 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
656 if (skb_is_gso(skb)) {
657 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
658 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
659 hdr, skb_shinfo(skb)->gso_size);
660 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
661 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
662 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
664 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
665 else if (is_udp_pkt(skb))
666 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
669 if (vlan_tx_tag_present(skb)) {
670 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
671 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
672 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
675 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
676 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
677 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
678 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
681 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
686 be_dws_le_to_cpu(wrb, sizeof(*wrb));
688 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
691 dma_unmap_single(dev, dma, wrb->frag_len,
694 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
698 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
699 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
703 struct device *dev = &adapter->pdev->dev;
704 struct sk_buff *first_skb = skb;
705 struct be_eth_wrb *wrb;
706 struct be_eth_hdr_wrb *hdr;
707 bool map_single = false;
710 hdr = queue_head_node(txq);
712 map_head = txq->head;
714 if (skb->len > skb->data_len) {
715 int len = skb_headlen(skb);
716 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
717 if (dma_mapping_error(dev, busaddr))
720 wrb = queue_head_node(txq);
721 wrb_fill(wrb, busaddr, len);
722 be_dws_cpu_to_le(wrb, sizeof(*wrb));
727 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
728 const struct skb_frag_struct *frag =
729 &skb_shinfo(skb)->frags[i];
730 busaddr = skb_frag_dma_map(dev, frag, 0,
731 skb_frag_size(frag), DMA_TO_DEVICE);
732 if (dma_mapping_error(dev, busaddr))
734 wrb = queue_head_node(txq);
735 wrb_fill(wrb, busaddr, skb_frag_size(frag));
736 be_dws_cpu_to_le(wrb, sizeof(*wrb));
738 copied += skb_frag_size(frag);
742 wrb = queue_head_node(txq);
744 be_dws_cpu_to_le(wrb, sizeof(*wrb));
748 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
749 be_dws_cpu_to_le(hdr, sizeof(*hdr));
753 txq->head = map_head;
755 wrb = queue_head_node(txq);
756 unmap_tx_frag(dev, wrb, map_single);
758 copied -= wrb->frag_len;
764 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
769 skb = skb_share_check(skb, GFP_ATOMIC);
773 if (vlan_tx_tag_present(skb)) {
774 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
775 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
783 static netdev_tx_t be_xmit(struct sk_buff *skb,
784 struct net_device *netdev)
786 struct be_adapter *adapter = netdev_priv(netdev);
787 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
788 struct be_queue_info *txq = &txo->q;
789 struct iphdr *ip = NULL;
790 u32 wrb_cnt = 0, copied = 0;
791 u32 start = txq->head, eth_hdr_len;
792 bool dummy_wrb, stopped = false;
794 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
795 VLAN_ETH_HLEN : ETH_HLEN;
797 /* HW has a bug which considers padding bytes as legal
798 * and modifies the IPv4 hdr's 'tot_len' field
800 if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
802 ip = (struct iphdr *)ip_hdr(skb);
803 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
806 /* HW has a bug wherein it will calculate CSUM for VLAN
807 * pkts even though it is disabled.
808 * Manually insert VLAN in pkt.
810 if (skb->ip_summed != CHECKSUM_PARTIAL &&
811 be_vlan_tag_chk(adapter, skb)) {
812 skb = be_insert_vlan_in_pkt(adapter, skb);
817 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
819 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
821 int gso_segs = skb_shinfo(skb)->gso_segs;
823 /* record the sent skb in the sent_skb table */
824 BUG_ON(txo->sent_skb_list[start]);
825 txo->sent_skb_list[start] = skb;
827 /* Ensure txq has space for the next skb; Else stop the queue
828 * *BEFORE* ringing the tx doorbell, so that we serialze the
829 * tx compls of the current transmit which'll wake up the queue
831 atomic_add(wrb_cnt, &txq->used);
832 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
834 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
838 be_txq_notify(adapter, txo, wrb_cnt);
840 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
843 dev_kfree_skb_any(skb);
849 static int be_change_mtu(struct net_device *netdev, int new_mtu)
851 struct be_adapter *adapter = netdev_priv(netdev);
852 if (new_mtu < BE_MIN_MTU ||
853 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
854 (ETH_HLEN + ETH_FCS_LEN))) {
855 dev_info(&adapter->pdev->dev,
856 "MTU must be between %d and %d bytes\n",
858 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
861 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
862 netdev->mtu, new_mtu);
863 netdev->mtu = new_mtu;
868 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
869 * If the user configures more, place BE in vlan promiscuous mode.
871 static int be_vid_config(struct be_adapter *adapter)
873 u16 vids[BE_NUM_VLANS_SUPPORTED];
877 /* No need to further configure vids if in promiscuous mode */
878 if (adapter->promiscuous)
881 if (adapter->vlans_added > adapter->max_vlans)
882 goto set_vlan_promisc;
884 /* Construct VLAN Table to give to HW */
885 for (i = 0; i < VLAN_N_VID; i++)
886 if (adapter->vlan_tag[i])
887 vids[num++] = cpu_to_le16(i);
889 status = be_cmd_vlan_config(adapter, adapter->if_handle,
892 /* Set to VLAN promisc mode as setting VLAN filter failed */
894 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
895 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
896 goto set_vlan_promisc;
902 status = be_cmd_vlan_config(adapter, adapter->if_handle,
907 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
909 struct be_adapter *adapter = netdev_priv(netdev);
912 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
917 /* Packets with VID 0 are always received by Lancer by default */
918 if (lancer_chip(adapter) && vid == 0)
921 adapter->vlan_tag[vid] = 1;
922 if (adapter->vlans_added <= (adapter->max_vlans + 1))
923 status = be_vid_config(adapter);
926 adapter->vlans_added++;
928 adapter->vlan_tag[vid] = 0;
933 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
935 struct be_adapter *adapter = netdev_priv(netdev);
938 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
943 /* Packets with VID 0 are always received by Lancer by default */
944 if (lancer_chip(adapter) && vid == 0)
947 adapter->vlan_tag[vid] = 0;
948 if (adapter->vlans_added <= adapter->max_vlans)
949 status = be_vid_config(adapter);
952 adapter->vlans_added--;
954 adapter->vlan_tag[vid] = 1;
959 static void be_set_rx_mode(struct net_device *netdev)
961 struct be_adapter *adapter = netdev_priv(netdev);
964 if (netdev->flags & IFF_PROMISC) {
965 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
966 adapter->promiscuous = true;
970 /* BE was previously in promiscuous mode; disable it */
971 if (adapter->promiscuous) {
972 adapter->promiscuous = false;
973 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
975 if (adapter->vlans_added)
976 be_vid_config(adapter);
979 /* Enable multicast promisc if num configured exceeds what we support */
980 if (netdev->flags & IFF_ALLMULTI ||
981 netdev_mc_count(netdev) > adapter->max_mcast_mac) {
982 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
986 if (netdev_uc_count(netdev) != adapter->uc_macs) {
987 struct netdev_hw_addr *ha;
988 int i = 1; /* First slot is claimed by the Primary MAC */
990 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
991 be_cmd_pmac_del(adapter, adapter->if_handle,
992 adapter->pmac_id[i], 0);
995 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
996 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
997 adapter->promiscuous = true;
1001 netdev_for_each_uc_addr(ha, adapter->netdev) {
1002 adapter->uc_macs++; /* First slot is for Primary MAC */
1003 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1005 &adapter->pmac_id[adapter->uc_macs], 0);
1009 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1011 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1013 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1014 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1015 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1021 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1023 struct be_adapter *adapter = netdev_priv(netdev);
1024 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1026 bool active_mac = false;
1028 u8 old_mac[ETH_ALEN];
1030 if (!sriov_enabled(adapter))
1033 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1036 if (lancer_chip(adapter)) {
1037 status = be_cmd_get_mac_from_list(adapter, old_mac, &active_mac,
1039 if (!status && active_mac)
1040 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1043 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
1045 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1046 vf_cfg->pmac_id, vf + 1);
1048 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1049 &vf_cfg->pmac_id, vf + 1);
1053 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1056 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1061 static int be_get_vf_config(struct net_device *netdev, int vf,
1062 struct ifla_vf_info *vi)
1064 struct be_adapter *adapter = netdev_priv(netdev);
1065 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1067 if (!sriov_enabled(adapter))
1070 if (vf >= adapter->num_vfs)
1074 vi->tx_rate = vf_cfg->tx_rate;
1075 vi->vlan = vf_cfg->vlan_tag;
1077 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1082 static int be_set_vf_vlan(struct net_device *netdev,
1083 int vf, u16 vlan, u8 qos)
1085 struct be_adapter *adapter = netdev_priv(netdev);
1088 if (!sriov_enabled(adapter))
1091 if (vf >= adapter->num_vfs || vlan > 4095)
1095 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1096 /* If this is new value, program it. Else skip. */
1097 adapter->vf_cfg[vf].vlan_tag = vlan;
1099 status = be_cmd_set_hsw_config(adapter, vlan,
1100 vf + 1, adapter->vf_cfg[vf].if_handle);
1103 /* Reset Transparent Vlan Tagging. */
1104 adapter->vf_cfg[vf].vlan_tag = 0;
1105 vlan = adapter->vf_cfg[vf].def_vid;
1106 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1107 adapter->vf_cfg[vf].if_handle);
1112 dev_info(&adapter->pdev->dev,
1113 "VLAN %d config on VF %d failed\n", vlan, vf);
1117 static int be_set_vf_tx_rate(struct net_device *netdev,
1120 struct be_adapter *adapter = netdev_priv(netdev);
1123 if (!sriov_enabled(adapter))
1126 if (vf >= adapter->num_vfs)
1129 if (rate < 100 || rate > 10000) {
1130 dev_err(&adapter->pdev->dev,
1131 "tx rate must be between 100 and 10000 Mbps\n");
1135 if (lancer_chip(adapter))
1136 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1138 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1141 dev_err(&adapter->pdev->dev,
1142 "tx rate %d on VF %d failed\n", rate, vf);
1144 adapter->vf_cfg[vf].tx_rate = rate;
1148 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1150 struct pci_dev *dev, *pdev = adapter->pdev;
1151 int vfs = 0, assigned_vfs = 0, pos;
1154 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1157 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1158 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1160 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1162 if (dev->is_virtfn && pci_physfn(dev) == pdev) {
1164 if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1167 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1169 return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1172 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1174 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1175 ulong now = jiffies;
1176 ulong delta = now - stats->rx_jiffies;
1178 unsigned int start, eqd;
1180 if (!eqo->enable_aic) {
1185 if (eqo->idx >= adapter->num_rx_qs)
1188 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1190 /* Wrapped around */
1191 if (time_before(now, stats->rx_jiffies)) {
1192 stats->rx_jiffies = now;
1196 /* Update once a second */
1201 start = u64_stats_fetch_begin_bh(&stats->sync);
1202 pkts = stats->rx_pkts;
1203 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1205 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1206 stats->rx_pkts_prev = pkts;
1207 stats->rx_jiffies = now;
1208 eqd = (stats->rx_pps / 110000) << 3;
1209 eqd = min(eqd, eqo->max_eqd);
1210 eqd = max(eqd, eqo->min_eqd);
1215 if (eqd != eqo->cur_eqd) {
1216 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1221 static void be_rx_stats_update(struct be_rx_obj *rxo,
1222 struct be_rx_compl_info *rxcp)
1224 struct be_rx_stats *stats = rx_stats(rxo);
1226 u64_stats_update_begin(&stats->sync);
1228 stats->rx_bytes += rxcp->pkt_size;
1230 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1231 stats->rx_mcast_pkts++;
1233 stats->rx_compl_err++;
1234 u64_stats_update_end(&stats->sync);
1237 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1239 /* L4 checksum is not reliable for non TCP/UDP packets.
1240 * Also ignore ipcksm for ipv6 pkts */
1241 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1242 (rxcp->ip_csum || rxcp->ipv6);
1245 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1248 struct be_adapter *adapter = rxo->adapter;
1249 struct be_rx_page_info *rx_page_info;
1250 struct be_queue_info *rxq = &rxo->q;
1252 rx_page_info = &rxo->page_info_tbl[frag_idx];
1253 BUG_ON(!rx_page_info->page);
1255 if (rx_page_info->last_page_user) {
1256 dma_unmap_page(&adapter->pdev->dev,
1257 dma_unmap_addr(rx_page_info, bus),
1258 adapter->big_page_size, DMA_FROM_DEVICE);
1259 rx_page_info->last_page_user = false;
1262 atomic_dec(&rxq->used);
1263 return rx_page_info;
1266 /* Throwaway the data in the Rx completion */
1267 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1268 struct be_rx_compl_info *rxcp)
1270 struct be_queue_info *rxq = &rxo->q;
1271 struct be_rx_page_info *page_info;
1272 u16 i, num_rcvd = rxcp->num_rcvd;
1274 for (i = 0; i < num_rcvd; i++) {
1275 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1276 put_page(page_info->page);
1277 memset(page_info, 0, sizeof(*page_info));
1278 index_inc(&rxcp->rxq_idx, rxq->len);
1283 * skb_fill_rx_data forms a complete skb for an ether frame
1284 * indicated by rxcp.
1286 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1287 struct be_rx_compl_info *rxcp)
1289 struct be_queue_info *rxq = &rxo->q;
1290 struct be_rx_page_info *page_info;
1292 u16 hdr_len, curr_frag_len, remaining;
1295 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1296 start = page_address(page_info->page) + page_info->page_offset;
1299 /* Copy data in the first descriptor of this completion */
1300 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1302 skb->len = curr_frag_len;
1303 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1304 memcpy(skb->data, start, curr_frag_len);
1305 /* Complete packet has now been moved to data */
1306 put_page(page_info->page);
1308 skb->tail += curr_frag_len;
1311 memcpy(skb->data, start, hdr_len);
1312 skb_shinfo(skb)->nr_frags = 1;
1313 skb_frag_set_page(skb, 0, page_info->page);
1314 skb_shinfo(skb)->frags[0].page_offset =
1315 page_info->page_offset + hdr_len;
1316 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1317 skb->data_len = curr_frag_len - hdr_len;
1318 skb->truesize += rx_frag_size;
1319 skb->tail += hdr_len;
1321 page_info->page = NULL;
1323 if (rxcp->pkt_size <= rx_frag_size) {
1324 BUG_ON(rxcp->num_rcvd != 1);
1328 /* More frags present for this completion */
1329 index_inc(&rxcp->rxq_idx, rxq->len);
1330 remaining = rxcp->pkt_size - curr_frag_len;
1331 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1332 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1333 curr_frag_len = min(remaining, rx_frag_size);
1335 /* Coalesce all frags from the same physical page in one slot */
1336 if (page_info->page_offset == 0) {
1339 skb_frag_set_page(skb, j, page_info->page);
1340 skb_shinfo(skb)->frags[j].page_offset =
1341 page_info->page_offset;
1342 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1343 skb_shinfo(skb)->nr_frags++;
1345 put_page(page_info->page);
1348 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1349 skb->len += curr_frag_len;
1350 skb->data_len += curr_frag_len;
1351 skb->truesize += rx_frag_size;
1352 remaining -= curr_frag_len;
1353 index_inc(&rxcp->rxq_idx, rxq->len);
1354 page_info->page = NULL;
1356 BUG_ON(j > MAX_SKB_FRAGS);
1359 /* Process the RX completion indicated by rxcp when GRO is disabled */
1360 static void be_rx_compl_process(struct be_rx_obj *rxo,
1361 struct be_rx_compl_info *rxcp)
1363 struct be_adapter *adapter = rxo->adapter;
1364 struct net_device *netdev = adapter->netdev;
1365 struct sk_buff *skb;
1367 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1368 if (unlikely(!skb)) {
1369 rx_stats(rxo)->rx_drops_no_skbs++;
1370 be_rx_compl_discard(rxo, rxcp);
1374 skb_fill_rx_data(rxo, skb, rxcp);
1376 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1377 skb->ip_summed = CHECKSUM_UNNECESSARY;
1379 skb_checksum_none_assert(skb);
1381 skb->protocol = eth_type_trans(skb, netdev);
1382 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1383 if (netdev->features & NETIF_F_RXHASH)
1384 skb->rxhash = rxcp->rss_hash;
1388 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1390 netif_receive_skb(skb);
1393 /* Process the RX completion indicated by rxcp when GRO is enabled */
1394 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1395 struct be_rx_compl_info *rxcp)
1397 struct be_adapter *adapter = rxo->adapter;
1398 struct be_rx_page_info *page_info;
1399 struct sk_buff *skb = NULL;
1400 struct be_queue_info *rxq = &rxo->q;
1401 u16 remaining, curr_frag_len;
1404 skb = napi_get_frags(napi);
1406 be_rx_compl_discard(rxo, rxcp);
1410 remaining = rxcp->pkt_size;
1411 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1412 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1414 curr_frag_len = min(remaining, rx_frag_size);
1416 /* Coalesce all frags from the same physical page in one slot */
1417 if (i == 0 || page_info->page_offset == 0) {
1418 /* First frag or Fresh page */
1420 skb_frag_set_page(skb, j, page_info->page);
1421 skb_shinfo(skb)->frags[j].page_offset =
1422 page_info->page_offset;
1423 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1425 put_page(page_info->page);
1427 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1428 skb->truesize += rx_frag_size;
1429 remaining -= curr_frag_len;
1430 index_inc(&rxcp->rxq_idx, rxq->len);
1431 memset(page_info, 0, sizeof(*page_info));
1433 BUG_ON(j > MAX_SKB_FRAGS);
1435 skb_shinfo(skb)->nr_frags = j + 1;
1436 skb->len = rxcp->pkt_size;
1437 skb->data_len = rxcp->pkt_size;
1438 skb->ip_summed = CHECKSUM_UNNECESSARY;
1439 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1440 if (adapter->netdev->features & NETIF_F_RXHASH)
1441 skb->rxhash = rxcp->rss_hash;
1444 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1446 napi_gro_frags(napi);
1449 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1450 struct be_rx_compl_info *rxcp)
1453 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1454 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1455 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1456 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1457 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1459 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1461 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1463 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1465 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1467 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1469 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1471 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1473 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1475 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1478 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1481 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1482 struct be_rx_compl_info *rxcp)
1485 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1486 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1487 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1488 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1489 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1491 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1493 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1495 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1497 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1499 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1501 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1503 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1505 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1507 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1510 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1513 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1515 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1516 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1517 struct be_adapter *adapter = rxo->adapter;
1519 /* For checking the valid bit it is Ok to use either definition as the
1520 * valid bit is at the same position in both v0 and v1 Rx compl */
1521 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1525 be_dws_le_to_cpu(compl, sizeof(*compl));
1527 if (adapter->be3_native)
1528 be_parse_rx_compl_v1(compl, rxcp);
1530 be_parse_rx_compl_v0(compl, rxcp);
1533 /* vlanf could be wrongly set in some cards.
1534 * ignore if vtm is not set */
1535 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1538 if (!lancer_chip(adapter))
1539 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1541 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1542 !adapter->vlan_tag[rxcp->vlan_tag])
1546 /* As the compl has been parsed, reset it; we wont touch it again */
1547 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1549 queue_tail_inc(&rxo->cq);
1553 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1555 u32 order = get_order(size);
1559 return alloc_pages(gfp, order);
1563 * Allocate a page, split it to fragments of size rx_frag_size and post as
1564 * receive buffers to BE
1566 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1568 struct be_adapter *adapter = rxo->adapter;
1569 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1570 struct be_queue_info *rxq = &rxo->q;
1571 struct page *pagep = NULL;
1572 struct be_eth_rx_d *rxd;
1573 u64 page_dmaaddr = 0, frag_dmaaddr;
1574 u32 posted, page_offset = 0;
1576 page_info = &rxo->page_info_tbl[rxq->head];
1577 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1579 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1580 if (unlikely(!pagep)) {
1581 rx_stats(rxo)->rx_post_fail++;
1584 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1585 0, adapter->big_page_size,
1587 page_info->page_offset = 0;
1590 page_info->page_offset = page_offset + rx_frag_size;
1592 page_offset = page_info->page_offset;
1593 page_info->page = pagep;
1594 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1595 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1597 rxd = queue_head_node(rxq);
1598 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1599 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1601 /* Any space left in the current big page for another frag? */
1602 if ((page_offset + rx_frag_size + rx_frag_size) >
1603 adapter->big_page_size) {
1605 page_info->last_page_user = true;
1608 prev_page_info = page_info;
1609 queue_head_inc(rxq);
1610 page_info = &rxo->page_info_tbl[rxq->head];
1613 prev_page_info->last_page_user = true;
1616 atomic_add(posted, &rxq->used);
1617 be_rxq_notify(adapter, rxq->id, posted);
1618 } else if (atomic_read(&rxq->used) == 0) {
1619 /* Let be_worker replenish when memory is available */
1620 rxo->rx_post_starved = true;
1624 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1626 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1628 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1632 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1634 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1636 queue_tail_inc(tx_cq);
1640 static u16 be_tx_compl_process(struct be_adapter *adapter,
1641 struct be_tx_obj *txo, u16 last_index)
1643 struct be_queue_info *txq = &txo->q;
1644 struct be_eth_wrb *wrb;
1645 struct sk_buff **sent_skbs = txo->sent_skb_list;
1646 struct sk_buff *sent_skb;
1647 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1648 bool unmap_skb_hdr = true;
1650 sent_skb = sent_skbs[txq->tail];
1652 sent_skbs[txq->tail] = NULL;
1654 /* skip header wrb */
1655 queue_tail_inc(txq);
1658 cur_index = txq->tail;
1659 wrb = queue_tail_node(txq);
1660 unmap_tx_frag(&adapter->pdev->dev, wrb,
1661 (unmap_skb_hdr && skb_headlen(sent_skb)));
1662 unmap_skb_hdr = false;
1665 queue_tail_inc(txq);
1666 } while (cur_index != last_index);
1668 kfree_skb(sent_skb);
1672 /* Return the number of events in the event queue */
1673 static inline int events_get(struct be_eq_obj *eqo)
1675 struct be_eq_entry *eqe;
1679 eqe = queue_tail_node(&eqo->q);
1686 queue_tail_inc(&eqo->q);
1692 /* Leaves the EQ is disarmed state */
1693 static void be_eq_clean(struct be_eq_obj *eqo)
1695 int num = events_get(eqo);
1697 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1700 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1702 struct be_rx_page_info *page_info;
1703 struct be_queue_info *rxq = &rxo->q;
1704 struct be_queue_info *rx_cq = &rxo->cq;
1705 struct be_rx_compl_info *rxcp;
1706 struct be_adapter *adapter = rxo->adapter;
1710 /* Consume pending rx completions.
1711 * Wait for the flush completion (identified by zero num_rcvd)
1712 * to arrive. Notify CQ even when there are no more CQ entries
1713 * for HW to flush partially coalesced CQ entries.
1714 * In Lancer, there is no need to wait for flush compl.
1717 rxcp = be_rx_compl_get(rxo);
1719 if (lancer_chip(adapter))
1722 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1723 dev_warn(&adapter->pdev->dev,
1724 "did not receive flush compl\n");
1727 be_cq_notify(adapter, rx_cq->id, true, 0);
1730 be_rx_compl_discard(rxo, rxcp);
1731 be_cq_notify(adapter, rx_cq->id, true, 1);
1732 if (rxcp->num_rcvd == 0)
1737 /* After cleanup, leave the CQ in unarmed state */
1738 be_cq_notify(adapter, rx_cq->id, false, 0);
1740 /* Then free posted rx buffers that were not used */
1741 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1742 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1743 page_info = get_rx_page_info(rxo, tail);
1744 put_page(page_info->page);
1745 memset(page_info, 0, sizeof(*page_info));
1747 BUG_ON(atomic_read(&rxq->used));
1748 rxq->tail = rxq->head = 0;
1751 static void be_tx_compl_clean(struct be_adapter *adapter)
1753 struct be_tx_obj *txo;
1754 struct be_queue_info *txq;
1755 struct be_eth_tx_compl *txcp;
1756 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1757 struct sk_buff *sent_skb;
1759 int i, pending_txqs;
1761 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1763 pending_txqs = adapter->num_tx_qs;
1765 for_all_tx_queues(adapter, txo, i) {
1767 while ((txcp = be_tx_compl_get(&txo->cq))) {
1769 AMAP_GET_BITS(struct amap_eth_tx_compl,
1771 num_wrbs += be_tx_compl_process(adapter, txo,
1776 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1777 atomic_sub(num_wrbs, &txq->used);
1781 if (atomic_read(&txq->used) == 0)
1785 if (pending_txqs == 0 || ++timeo > 200)
1791 for_all_tx_queues(adapter, txo, i) {
1793 if (atomic_read(&txq->used))
1794 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1795 atomic_read(&txq->used));
1797 /* free posted tx for which compls will never arrive */
1798 while (atomic_read(&txq->used)) {
1799 sent_skb = txo->sent_skb_list[txq->tail];
1800 end_idx = txq->tail;
1801 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1803 index_adv(&end_idx, num_wrbs - 1, txq->len);
1804 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1805 atomic_sub(num_wrbs, &txq->used);
1810 static void be_evt_queues_destroy(struct be_adapter *adapter)
1812 struct be_eq_obj *eqo;
1815 for_all_evt_queues(adapter, eqo, i) {
1816 if (eqo->q.created) {
1818 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1820 be_queue_free(adapter, &eqo->q);
1824 static int be_evt_queues_create(struct be_adapter *adapter)
1826 struct be_queue_info *eq;
1827 struct be_eq_obj *eqo;
1830 adapter->num_evt_qs = num_irqs(adapter);
1832 for_all_evt_queues(adapter, eqo, i) {
1833 eqo->adapter = adapter;
1834 eqo->tx_budget = BE_TX_BUDGET;
1836 eqo->max_eqd = BE_MAX_EQD;
1837 eqo->enable_aic = true;
1840 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1841 sizeof(struct be_eq_entry));
1845 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1852 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1854 struct be_queue_info *q;
1856 q = &adapter->mcc_obj.q;
1858 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1859 be_queue_free(adapter, q);
1861 q = &adapter->mcc_obj.cq;
1863 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1864 be_queue_free(adapter, q);
1867 /* Must be called only after TX qs are created as MCC shares TX EQ */
1868 static int be_mcc_queues_create(struct be_adapter *adapter)
1870 struct be_queue_info *q, *cq;
1872 cq = &adapter->mcc_obj.cq;
1873 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1874 sizeof(struct be_mcc_compl)))
1877 /* Use the default EQ for MCC completions */
1878 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1881 q = &adapter->mcc_obj.q;
1882 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1883 goto mcc_cq_destroy;
1885 if (be_cmd_mccq_create(adapter, q, cq))
1891 be_queue_free(adapter, q);
1893 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1895 be_queue_free(adapter, cq);
1900 static void be_tx_queues_destroy(struct be_adapter *adapter)
1902 struct be_queue_info *q;
1903 struct be_tx_obj *txo;
1906 for_all_tx_queues(adapter, txo, i) {
1909 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1910 be_queue_free(adapter, q);
1914 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1915 be_queue_free(adapter, q);
1919 static int be_num_txqs_want(struct be_adapter *adapter)
1921 if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
1922 be_is_mc(adapter) ||
1923 (!lancer_chip(adapter) && !be_physfn(adapter)) ||
1927 return adapter->max_tx_queues;
1930 static int be_tx_cqs_create(struct be_adapter *adapter)
1932 struct be_queue_info *cq, *eq;
1934 struct be_tx_obj *txo;
1937 adapter->num_tx_qs = be_num_txqs_want(adapter);
1938 if (adapter->num_tx_qs != MAX_TX_QS) {
1940 netif_set_real_num_tx_queues(adapter->netdev,
1941 adapter->num_tx_qs);
1945 for_all_tx_queues(adapter, txo, i) {
1947 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
1948 sizeof(struct be_eth_tx_compl));
1952 /* If num_evt_qs is less than num_tx_qs, then more than
1953 * one txq share an eq
1955 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1956 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
1963 static int be_tx_qs_create(struct be_adapter *adapter)
1965 struct be_tx_obj *txo;
1968 for_all_tx_queues(adapter, txo, i) {
1969 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
1970 sizeof(struct be_eth_wrb));
1974 status = be_cmd_txq_create(adapter, txo);
1979 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
1980 adapter->num_tx_qs);
1984 static void be_rx_cqs_destroy(struct be_adapter *adapter)
1986 struct be_queue_info *q;
1987 struct be_rx_obj *rxo;
1990 for_all_rx_queues(adapter, rxo, i) {
1993 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1994 be_queue_free(adapter, q);
1998 static int be_rx_cqs_create(struct be_adapter *adapter)
2000 struct be_queue_info *eq, *cq;
2001 struct be_rx_obj *rxo;
2004 /* We'll create as many RSS rings as there are irqs.
2005 * But when there's only one irq there's no use creating RSS rings
2007 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
2008 num_irqs(adapter) + 1 : 1;
2009 if (adapter->num_rx_qs != MAX_RX_QS) {
2011 netif_set_real_num_rx_queues(adapter->netdev,
2012 adapter->num_rx_qs);
2016 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2017 for_all_rx_queues(adapter, rxo, i) {
2018 rxo->adapter = adapter;
2020 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2021 sizeof(struct be_eth_rx_compl));
2025 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2026 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2031 dev_info(&adapter->pdev->dev,
2032 "created %d RSS queue(s) and 1 default RX queue\n",
2033 adapter->num_rx_qs - 1);
2037 static irqreturn_t be_intx(int irq, void *dev)
2039 struct be_eq_obj *eqo = dev;
2040 struct be_adapter *adapter = eqo->adapter;
2043 /* IRQ is not expected when NAPI is scheduled as the EQ
2044 * will not be armed.
2045 * But, this can happen on Lancer INTx where it takes
2046 * a while to de-assert INTx or in BE2 where occasionaly
2047 * an interrupt may be raised even when EQ is unarmed.
2048 * If NAPI is already scheduled, then counting & notifying
2049 * events will orphan them.
2051 if (napi_schedule_prep(&eqo->napi)) {
2052 num_evts = events_get(eqo);
2053 __napi_schedule(&eqo->napi);
2055 eqo->spurious_intr = 0;
2057 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2059 /* Return IRQ_HANDLED only for the the first spurious intr
2060 * after a valid intr to stop the kernel from branding
2061 * this irq as a bad one!
2063 if (num_evts || eqo->spurious_intr++ == 0)
2069 static irqreturn_t be_msix(int irq, void *dev)
2071 struct be_eq_obj *eqo = dev;
2073 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2074 napi_schedule(&eqo->napi);
2078 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2080 return (rxcp->tcpf && !rxcp->err) ? true : false;
2083 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2086 struct be_adapter *adapter = rxo->adapter;
2087 struct be_queue_info *rx_cq = &rxo->cq;
2088 struct be_rx_compl_info *rxcp;
2091 for (work_done = 0; work_done < budget; work_done++) {
2092 rxcp = be_rx_compl_get(rxo);
2096 /* Is it a flush compl that has no data */
2097 if (unlikely(rxcp->num_rcvd == 0))
2100 /* Discard compl with partial DMA Lancer B0 */
2101 if (unlikely(!rxcp->pkt_size)) {
2102 be_rx_compl_discard(rxo, rxcp);
2106 /* On BE drop pkts that arrive due to imperfect filtering in
2107 * promiscuous mode on some skews
2109 if (unlikely(rxcp->port != adapter->port_num &&
2110 !lancer_chip(adapter))) {
2111 be_rx_compl_discard(rxo, rxcp);
2116 be_rx_compl_process_gro(rxo, napi, rxcp);
2118 be_rx_compl_process(rxo, rxcp);
2120 be_rx_stats_update(rxo, rxcp);
2124 be_cq_notify(adapter, rx_cq->id, true, work_done);
2126 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2127 be_post_rx_frags(rxo, GFP_ATOMIC);
2133 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2134 int budget, int idx)
2136 struct be_eth_tx_compl *txcp;
2137 int num_wrbs = 0, work_done;
2139 for (work_done = 0; work_done < budget; work_done++) {
2140 txcp = be_tx_compl_get(&txo->cq);
2143 num_wrbs += be_tx_compl_process(adapter, txo,
2144 AMAP_GET_BITS(struct amap_eth_tx_compl,
2149 be_cq_notify(adapter, txo->cq.id, true, work_done);
2150 atomic_sub(num_wrbs, &txo->q.used);
2152 /* As Tx wrbs have been freed up, wake up netdev queue
2153 * if it was stopped due to lack of tx wrbs. */
2154 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2155 atomic_read(&txo->q.used) < txo->q.len / 2) {
2156 netif_wake_subqueue(adapter->netdev, idx);
2159 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2160 tx_stats(txo)->tx_compl += work_done;
2161 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2163 return (work_done < budget); /* Done */
2166 int be_poll(struct napi_struct *napi, int budget)
2168 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2169 struct be_adapter *adapter = eqo->adapter;
2170 int max_work = 0, work, i, num_evts;
2173 num_evts = events_get(eqo);
2175 /* Process all TXQs serviced by this EQ */
2176 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2177 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2183 /* This loop will iterate twice for EQ0 in which
2184 * completions of the last RXQ (default one) are also processed
2185 * For other EQs the loop iterates only once
2187 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2188 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2189 max_work = max(work, max_work);
2192 if (is_mcc_eqo(eqo))
2193 be_process_mcc(adapter);
2195 if (max_work < budget) {
2196 napi_complete(napi);
2197 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2199 /* As we'll continue in polling mode, count and clear events */
2200 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2205 void be_detect_error(struct be_adapter *adapter)
2207 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2208 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2211 if (be_hw_error(adapter))
2214 if (lancer_chip(adapter)) {
2215 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2216 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2217 sliport_err1 = ioread32(adapter->db +
2218 SLIPORT_ERROR1_OFFSET);
2219 sliport_err2 = ioread32(adapter->db +
2220 SLIPORT_ERROR2_OFFSET);
2223 pci_read_config_dword(adapter->pdev,
2224 PCICFG_UE_STATUS_LOW, &ue_lo);
2225 pci_read_config_dword(adapter->pdev,
2226 PCICFG_UE_STATUS_HIGH, &ue_hi);
2227 pci_read_config_dword(adapter->pdev,
2228 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2229 pci_read_config_dword(adapter->pdev,
2230 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2232 ue_lo = (ue_lo & ~ue_lo_mask);
2233 ue_hi = (ue_hi & ~ue_hi_mask);
2236 /* On certain platforms BE hardware can indicate spurious UEs.
2237 * Allow the h/w to stop working completely in case of a real UE.
2238 * Hence not setting the hw_error for UE detection.
2240 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2241 adapter->hw_error = true;
2242 dev_err(&adapter->pdev->dev,
2243 "Error detected in the card\n");
2246 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2247 dev_err(&adapter->pdev->dev,
2248 "ERR: sliport status 0x%x\n", sliport_status);
2249 dev_err(&adapter->pdev->dev,
2250 "ERR: sliport error1 0x%x\n", sliport_err1);
2251 dev_err(&adapter->pdev->dev,
2252 "ERR: sliport error2 0x%x\n", sliport_err2);
2256 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2258 dev_err(&adapter->pdev->dev,
2259 "UE: %s bit set\n", ue_status_low_desc[i]);
2264 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2266 dev_err(&adapter->pdev->dev,
2267 "UE: %s bit set\n", ue_status_hi_desc[i]);
2273 static void be_msix_disable(struct be_adapter *adapter)
2275 if (msix_enabled(adapter)) {
2276 pci_disable_msix(adapter->pdev);
2277 adapter->num_msix_vec = 0;
2281 static uint be_num_rss_want(struct be_adapter *adapter)
2285 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2286 (lancer_chip(adapter) ||
2287 (!sriov_want(adapter) && be_physfn(adapter)))) {
2288 num = adapter->max_rss_queues;
2289 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2294 static void be_msix_enable(struct be_adapter *adapter)
2296 #define BE_MIN_MSIX_VECTORS 1
2297 int i, status, num_vec, num_roce_vec = 0;
2298 struct device *dev = &adapter->pdev->dev;
2300 /* If RSS queues are not used, need a vec for default RX Q */
2301 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2302 if (be_roce_supported(adapter)) {
2303 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2304 (num_online_cpus() + 1));
2305 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2306 num_vec += num_roce_vec;
2307 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2309 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2311 for (i = 0; i < num_vec; i++)
2312 adapter->msix_entries[i].entry = i;
2314 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2317 } else if (status >= BE_MIN_MSIX_VECTORS) {
2319 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2324 dev_warn(dev, "MSIx enable failed\n");
2327 if (be_roce_supported(adapter)) {
2328 if (num_vec > num_roce_vec) {
2329 adapter->num_msix_vec = num_vec - num_roce_vec;
2330 adapter->num_msix_roce_vec =
2331 num_vec - adapter->num_msix_vec;
2333 adapter->num_msix_vec = num_vec;
2334 adapter->num_msix_roce_vec = 0;
2337 adapter->num_msix_vec = num_vec;
2338 dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
2342 static inline int be_msix_vec_get(struct be_adapter *adapter,
2343 struct be_eq_obj *eqo)
2345 return adapter->msix_entries[eqo->idx].vector;
2348 static int be_msix_register(struct be_adapter *adapter)
2350 struct net_device *netdev = adapter->netdev;
2351 struct be_eq_obj *eqo;
2354 for_all_evt_queues(adapter, eqo, i) {
2355 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2356 vec = be_msix_vec_get(adapter, eqo);
2357 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2364 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2365 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2366 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2368 be_msix_disable(adapter);
2372 static int be_irq_register(struct be_adapter *adapter)
2374 struct net_device *netdev = adapter->netdev;
2377 if (msix_enabled(adapter)) {
2378 status = be_msix_register(adapter);
2381 /* INTx is not supported for VF */
2382 if (!be_physfn(adapter))
2386 /* INTx: only the first EQ is used */
2387 netdev->irq = adapter->pdev->irq;
2388 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2389 &adapter->eq_obj[0]);
2391 dev_err(&adapter->pdev->dev,
2392 "INTx request IRQ failed - err %d\n", status);
2396 adapter->isr_registered = true;
2400 static void be_irq_unregister(struct be_adapter *adapter)
2402 struct net_device *netdev = adapter->netdev;
2403 struct be_eq_obj *eqo;
2406 if (!adapter->isr_registered)
2410 if (!msix_enabled(adapter)) {
2411 free_irq(netdev->irq, &adapter->eq_obj[0]);
2416 for_all_evt_queues(adapter, eqo, i)
2417 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2420 adapter->isr_registered = false;
2423 static void be_rx_qs_destroy(struct be_adapter *adapter)
2425 struct be_queue_info *q;
2426 struct be_rx_obj *rxo;
2429 for_all_rx_queues(adapter, rxo, i) {
2432 be_cmd_rxq_destroy(adapter, q);
2433 /* After the rxq is invalidated, wait for a grace time
2434 * of 1ms for all dma to end and the flush compl to
2438 be_rx_cq_clean(rxo);
2440 be_queue_free(adapter, q);
2444 static int be_close(struct net_device *netdev)
2446 struct be_adapter *adapter = netdev_priv(netdev);
2447 struct be_eq_obj *eqo;
2450 be_roce_dev_close(adapter);
2452 for_all_evt_queues(adapter, eqo, i)
2453 napi_disable(&eqo->napi);
2455 be_async_mcc_disable(adapter);
2457 /* Wait for all pending tx completions to arrive so that
2458 * all tx skbs are freed.
2460 be_tx_compl_clean(adapter);
2462 be_rx_qs_destroy(adapter);
2464 for_all_evt_queues(adapter, eqo, i) {
2465 if (msix_enabled(adapter))
2466 synchronize_irq(be_msix_vec_get(adapter, eqo));
2468 synchronize_irq(netdev->irq);
2472 be_irq_unregister(adapter);
2477 static int be_rx_qs_create(struct be_adapter *adapter)
2479 struct be_rx_obj *rxo;
2483 for_all_rx_queues(adapter, rxo, i) {
2484 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2485 sizeof(struct be_eth_rx_d));
2490 /* The FW would like the default RXQ to be created first */
2491 rxo = default_rxo(adapter);
2492 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2493 adapter->if_handle, false, &rxo->rss_id);
2497 for_all_rss_queues(adapter, rxo, i) {
2498 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2499 rx_frag_size, adapter->if_handle,
2500 true, &rxo->rss_id);
2505 if (be_multi_rxq(adapter)) {
2506 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2507 for_all_rss_queues(adapter, rxo, i) {
2510 rsstable[j + i] = rxo->rss_id;
2513 rc = be_cmd_rss_config(adapter, rsstable, 128);
2518 /* First time posting */
2519 for_all_rx_queues(adapter, rxo, i)
2520 be_post_rx_frags(rxo, GFP_KERNEL);
2524 static int be_open(struct net_device *netdev)
2526 struct be_adapter *adapter = netdev_priv(netdev);
2527 struct be_eq_obj *eqo;
2528 struct be_rx_obj *rxo;
2529 struct be_tx_obj *txo;
2533 status = be_rx_qs_create(adapter);
2537 be_irq_register(adapter);
2539 for_all_rx_queues(adapter, rxo, i)
2540 be_cq_notify(adapter, rxo->cq.id, true, 0);
2542 for_all_tx_queues(adapter, txo, i)
2543 be_cq_notify(adapter, txo->cq.id, true, 0);
2545 be_async_mcc_enable(adapter);
2547 for_all_evt_queues(adapter, eqo, i) {
2548 napi_enable(&eqo->napi);
2549 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2552 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2554 be_link_status_update(adapter, link_status);
2556 be_roce_dev_open(adapter);
2559 be_close(adapter->netdev);
2563 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2565 struct be_dma_mem cmd;
2569 memset(mac, 0, ETH_ALEN);
2571 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2572 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2573 GFP_KERNEL | __GFP_ZERO);
2578 status = pci_write_config_dword(adapter->pdev,
2579 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2581 dev_err(&adapter->pdev->dev,
2582 "Could not enable Wake-on-lan\n");
2583 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2587 status = be_cmd_enable_magic_wol(adapter,
2588 adapter->netdev->dev_addr, &cmd);
2589 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2590 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2592 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2593 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2594 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2597 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2602 * Generate a seed MAC address from the PF MAC Address using jhash.
2603 * MAC Address for VFs are assigned incrementally starting from the seed.
2604 * These addresses are programmed in the ASIC by the PF and the VF driver
2605 * queries for the MAC address during its probe.
2607 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2612 struct be_vf_cfg *vf_cfg;
2614 be_vf_eth_addr_generate(adapter, mac);
2616 for_all_vfs(adapter, vf_cfg, vf) {
2617 if (lancer_chip(adapter)) {
2618 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2620 status = be_cmd_pmac_add(adapter, mac,
2622 &vf_cfg->pmac_id, vf + 1);
2626 dev_err(&adapter->pdev->dev,
2627 "Mac address assignment failed for VF %d\n", vf);
2629 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2636 static int be_vfs_mac_query(struct be_adapter *adapter)
2640 struct be_vf_cfg *vf_cfg;
2643 for_all_vfs(adapter, vf_cfg, vf) {
2644 be_cmd_get_mac_from_list(adapter, mac, &active,
2645 &vf_cfg->pmac_id, 0);
2647 status = be_cmd_mac_addr_query(adapter, mac, false,
2648 vf_cfg->if_handle, 0);
2651 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2656 static void be_vf_clear(struct be_adapter *adapter)
2658 struct be_vf_cfg *vf_cfg;
2661 if (be_find_vfs(adapter, ASSIGNED)) {
2662 dev_warn(&adapter->pdev->dev,
2663 "VFs are assigned to VMs: not disabling VFs\n");
2667 for_all_vfs(adapter, vf_cfg, vf) {
2668 if (lancer_chip(adapter))
2669 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2671 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2672 vf_cfg->pmac_id, vf + 1);
2674 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2676 pci_disable_sriov(adapter->pdev);
2678 kfree(adapter->vf_cfg);
2679 adapter->num_vfs = 0;
2682 static int be_clear(struct be_adapter *adapter)
2686 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2687 cancel_delayed_work_sync(&adapter->work);
2688 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2691 if (sriov_enabled(adapter))
2692 be_vf_clear(adapter);
2694 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2695 be_cmd_pmac_del(adapter, adapter->if_handle,
2696 adapter->pmac_id[i], 0);
2698 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2700 be_mcc_queues_destroy(adapter);
2701 be_rx_cqs_destroy(adapter);
2702 be_tx_queues_destroy(adapter);
2703 be_evt_queues_destroy(adapter);
2705 kfree(adapter->pmac_id);
2706 adapter->pmac_id = NULL;
2708 be_msix_disable(adapter);
2712 static int be_vfs_if_create(struct be_adapter *adapter)
2714 struct be_vf_cfg *vf_cfg;
2715 u32 cap_flags, en_flags, vf;
2718 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2719 BE_IF_FLAGS_MULTICAST;
2721 for_all_vfs(adapter, vf_cfg, vf) {
2722 if (!BE3_chip(adapter))
2723 be_cmd_get_profile_config(adapter, &cap_flags,
2726 /* If a FW profile exists, then cap_flags are updated */
2727 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2728 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2729 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2730 &vf_cfg->if_handle, vf + 1);
2738 static int be_vf_setup_init(struct be_adapter *adapter)
2740 struct be_vf_cfg *vf_cfg;
2743 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2745 if (!adapter->vf_cfg)
2748 for_all_vfs(adapter, vf_cfg, vf) {
2749 vf_cfg->if_handle = -1;
2750 vf_cfg->pmac_id = -1;
2755 static int be_vf_setup(struct be_adapter *adapter)
2757 struct be_vf_cfg *vf_cfg;
2758 u16 def_vlan, lnk_speed;
2759 int status, old_vfs, vf;
2760 struct device *dev = &adapter->pdev->dev;
2762 old_vfs = be_find_vfs(adapter, ENABLED);
2764 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2765 if (old_vfs != num_vfs)
2766 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2767 adapter->num_vfs = old_vfs;
2769 if (num_vfs > adapter->dev_num_vfs)
2770 dev_info(dev, "Device supports %d VFs and not %d\n",
2771 adapter->dev_num_vfs, num_vfs);
2772 adapter->num_vfs = min_t(u16, num_vfs, adapter->dev_num_vfs);
2774 status = pci_enable_sriov(adapter->pdev, num_vfs);
2776 dev_err(dev, "SRIOV enable failed\n");
2777 adapter->num_vfs = 0;
2782 status = be_vf_setup_init(adapter);
2787 for_all_vfs(adapter, vf_cfg, vf) {
2788 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2793 status = be_vfs_if_create(adapter);
2799 status = be_vfs_mac_query(adapter);
2803 status = be_vf_eth_addr_config(adapter);
2808 for_all_vfs(adapter, vf_cfg, vf) {
2809 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2810 * Allow full available bandwidth
2812 if (BE3_chip(adapter) && !old_vfs)
2813 be_cmd_set_qos(adapter, 1000, vf+1);
2815 status = be_cmd_link_status_query(adapter, &lnk_speed,
2818 vf_cfg->tx_rate = lnk_speed;
2820 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2821 vf + 1, vf_cfg->if_handle);
2824 vf_cfg->def_vid = def_vlan;
2826 be_cmd_enable_vf(adapter, vf + 1);
2830 dev_err(dev, "VF setup failed\n");
2831 be_vf_clear(adapter);
2835 static void be_setup_init(struct be_adapter *adapter)
2837 adapter->vlan_prio_bmap = 0xff;
2838 adapter->phy.link_speed = -1;
2839 adapter->if_handle = -1;
2840 adapter->be3_native = false;
2841 adapter->promiscuous = false;
2842 if (be_physfn(adapter))
2843 adapter->cmd_privileges = MAX_PRIVILEGES;
2845 adapter->cmd_privileges = MIN_PRIVILEGES;
2848 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2849 bool *active_mac, u32 *pmac_id)
2853 if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2854 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2855 if (!lancer_chip(adapter) && !be_physfn(adapter))
2858 *active_mac = false;
2863 if (lancer_chip(adapter)) {
2864 status = be_cmd_get_mac_from_list(adapter, mac,
2865 active_mac, pmac_id, 0);
2867 status = be_cmd_mac_addr_query(adapter, mac, false,
2868 if_handle, *pmac_id);
2870 } else if (be_physfn(adapter)) {
2871 /* For BE3, for PF get permanent MAC */
2872 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
2873 *active_mac = false;
2875 /* For BE3, for VF get soft MAC assigned by PF*/
2876 status = be_cmd_mac_addr_query(adapter, mac, false,
2883 static void be_get_resources(struct be_adapter *adapter)
2887 bool profile_present = false;
2890 if (!BEx_chip(adapter)) {
2891 status = be_cmd_get_func_config(adapter);
2893 profile_present = true;
2894 } else if (BE3_chip(adapter) && be_physfn(adapter)) {
2895 be_cmd_get_profile_config(adapter, NULL, &txq_count, 0);
2898 if (profile_present) {
2899 /* Sanity fixes for Lancer */
2900 adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
2902 adapter->max_vlans = min_t(u16, adapter->max_vlans,
2903 BE_NUM_VLANS_SUPPORTED);
2904 adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
2906 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
2908 adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
2910 adapter->max_event_queues = min_t(u16,
2911 adapter->max_event_queues,
2914 if (adapter->max_rss_queues &&
2915 adapter->max_rss_queues == adapter->max_rx_queues)
2916 adapter->max_rss_queues -= 1;
2918 if (adapter->max_event_queues < adapter->max_rss_queues)
2919 adapter->max_rss_queues = adapter->max_event_queues;
2922 if (be_physfn(adapter))
2923 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
2925 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
2927 if (adapter->function_mode & FLEX10_MODE)
2928 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
2930 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2932 adapter->max_mcast_mac = BE_MAX_MC;
2933 adapter->max_tx_queues = txq_count ? txq_count : MAX_TX_QS;
2934 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
2936 adapter->max_rss_queues = (adapter->be3_native) ?
2937 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2938 adapter->max_event_queues = BE3_MAX_RSS_QS;
2940 adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
2941 BE_IF_FLAGS_BROADCAST |
2942 BE_IF_FLAGS_MULTICAST |
2943 BE_IF_FLAGS_PASS_L3L4_ERRORS |
2944 BE_IF_FLAGS_MCAST_PROMISCUOUS |
2945 BE_IF_FLAGS_VLAN_PROMISCUOUS |
2946 BE_IF_FLAGS_PROMISCUOUS;
2948 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
2949 adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
2952 pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2954 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2956 if (BE3_chip(adapter))
2957 dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
2958 adapter->dev_num_vfs = dev_num_vfs;
2962 /* Routine to query per function resource limits */
2963 static int be_get_config(struct be_adapter *adapter)
2967 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
2968 &adapter->function_mode,
2969 &adapter->function_caps,
2970 &adapter->asic_rev);
2974 be_get_resources(adapter);
2976 /* primary mac needs 1 pmac entry */
2977 adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
2978 sizeof(u32), GFP_KERNEL);
2979 if (!adapter->pmac_id) {
2988 static int be_setup(struct be_adapter *adapter)
2990 struct device *dev = &adapter->pdev->dev;
2997 be_setup_init(adapter);
2999 if (!lancer_chip(adapter))
3000 be_cmd_req_native_mode(adapter);
3002 status = be_get_config(adapter);
3006 be_msix_enable(adapter);
3008 status = be_evt_queues_create(adapter);
3012 status = be_tx_cqs_create(adapter);
3016 status = be_rx_cqs_create(adapter);
3020 status = be_mcc_queues_create(adapter);
3024 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3025 /* In UMC mode FW does not return right privileges.
3026 * Override with correct privilege equivalent to PF.
3028 if (be_is_mc(adapter))
3029 adapter->cmd_privileges = MAX_PRIVILEGES;
3031 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3032 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3034 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3035 en_flags |= BE_IF_FLAGS_RSS;
3037 en_flags = en_flags & adapter->if_cap_flags;
3039 status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
3040 &adapter->if_handle, 0);
3044 memset(mac, 0, ETH_ALEN);
3046 status = be_get_mac_addr(adapter, mac, adapter->if_handle,
3047 &active_mac, &adapter->pmac_id[0]);
3052 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3053 &adapter->pmac_id[0], 0);
3058 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3059 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3060 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3063 status = be_tx_qs_create(adapter);
3067 be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
3069 if (adapter->vlans_added)
3070 be_vid_config(adapter);
3072 be_set_rx_mode(adapter->netdev);
3074 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3076 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3077 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3080 if (be_physfn(adapter) && num_vfs) {
3081 if (adapter->dev_num_vfs)
3082 be_vf_setup(adapter);
3084 dev_warn(dev, "device doesn't support SRIOV\n");
3087 status = be_cmd_get_phy_info(adapter);
3088 if (!status && be_pause_supported(adapter))
3089 adapter->phy.fc_autoneg = 1;
3091 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3092 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3099 #ifdef CONFIG_NET_POLL_CONTROLLER
3100 static void be_netpoll(struct net_device *netdev)
3102 struct be_adapter *adapter = netdev_priv(netdev);
3103 struct be_eq_obj *eqo;
3106 for_all_evt_queues(adapter, eqo, i) {
3107 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3108 napi_schedule(&eqo->napi);
3115 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3116 char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3118 static bool be_flash_redboot(struct be_adapter *adapter,
3119 const u8 *p, u32 img_start, int image_size,
3126 crc_offset = hdr_size + img_start + image_size - 4;
3130 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3133 dev_err(&adapter->pdev->dev,
3134 "could not get crc from flash, not flashing redboot\n");
3138 /*update redboot only if crc does not match*/
3139 if (!memcmp(flashed_crc, p, 4))
3145 static bool phy_flashing_required(struct be_adapter *adapter)
3147 return (adapter->phy.phy_type == TN_8022 &&
3148 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3151 static bool is_comp_in_ufi(struct be_adapter *adapter,
3152 struct flash_section_info *fsec, int type)
3154 int i = 0, img_type = 0;
3155 struct flash_section_info_g2 *fsec_g2 = NULL;
3157 if (BE2_chip(adapter))
3158 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3160 for (i = 0; i < MAX_FLASH_COMP; i++) {
3162 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3164 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3166 if (img_type == type)
3173 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3175 const struct firmware *fw)
3177 struct flash_section_info *fsec = NULL;
3178 const u8 *p = fw->data;
3181 while (p < (fw->data + fw->size)) {
3182 fsec = (struct flash_section_info *)p;
3183 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3190 static int be_flash(struct be_adapter *adapter, const u8 *img,
3191 struct be_dma_mem *flash_cmd, int optype, int img_size)
3193 u32 total_bytes = 0, flash_op, num_bytes = 0;
3195 struct be_cmd_write_flashrom *req = flash_cmd->va;
3197 total_bytes = img_size;
3198 while (total_bytes) {
3199 num_bytes = min_t(u32, 32*1024, total_bytes);
3201 total_bytes -= num_bytes;
3204 if (optype == OPTYPE_PHY_FW)
3205 flash_op = FLASHROM_OPER_PHY_FLASH;
3207 flash_op = FLASHROM_OPER_FLASH;
3209 if (optype == OPTYPE_PHY_FW)
3210 flash_op = FLASHROM_OPER_PHY_SAVE;
3212 flash_op = FLASHROM_OPER_SAVE;
3215 memcpy(req->data_buf, img, num_bytes);
3217 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3218 flash_op, num_bytes);
3220 if (status == ILLEGAL_IOCTL_REQ &&
3221 optype == OPTYPE_PHY_FW)
3223 dev_err(&adapter->pdev->dev,
3224 "cmd to write to flash rom failed.\n");
3231 /* For BE2, BE3 and BE3-R */
3232 static int be_flash_BEx(struct be_adapter *adapter,
3233 const struct firmware *fw,
3234 struct be_dma_mem *flash_cmd,
3238 int status = 0, i, filehdr_size = 0;
3239 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3240 const u8 *p = fw->data;
3241 const struct flash_comp *pflashcomp;
3242 int num_comp, redboot;
3243 struct flash_section_info *fsec = NULL;
3245 struct flash_comp gen3_flash_types[] = {
3246 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3247 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3248 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3249 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3250 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3251 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3252 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3253 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3254 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3255 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3256 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3257 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3258 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3259 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3260 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3261 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3262 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3263 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3264 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3265 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3268 struct flash_comp gen2_flash_types[] = {
3269 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3270 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3271 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3272 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3273 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3274 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3275 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3276 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3277 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3278 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3279 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3280 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3281 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3282 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3283 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3284 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3287 if (BE3_chip(adapter)) {
3288 pflashcomp = gen3_flash_types;
3289 filehdr_size = sizeof(struct flash_file_hdr_g3);
3290 num_comp = ARRAY_SIZE(gen3_flash_types);
3292 pflashcomp = gen2_flash_types;
3293 filehdr_size = sizeof(struct flash_file_hdr_g2);
3294 num_comp = ARRAY_SIZE(gen2_flash_types);
3297 /* Get flash section info*/
3298 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3300 dev_err(&adapter->pdev->dev,
3301 "Invalid Cookie. UFI corrupted ?\n");
3304 for (i = 0; i < num_comp; i++) {
3305 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3308 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3309 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3312 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3313 !phy_flashing_required(adapter))
3316 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3317 redboot = be_flash_redboot(adapter, fw->data,
3318 pflashcomp[i].offset, pflashcomp[i].size,
3319 filehdr_size + img_hdrs_size);
3325 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3326 if (p + pflashcomp[i].size > fw->data + fw->size)
3329 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3330 pflashcomp[i].size);
3332 dev_err(&adapter->pdev->dev,
3333 "Flashing section type %d failed.\n",
3334 pflashcomp[i].img_type);
3341 static int be_flash_skyhawk(struct be_adapter *adapter,
3342 const struct firmware *fw,
3343 struct be_dma_mem *flash_cmd, int num_of_images)
3345 int status = 0, i, filehdr_size = 0;
3346 int img_offset, img_size, img_optype, redboot;
3347 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3348 const u8 *p = fw->data;
3349 struct flash_section_info *fsec = NULL;
3351 filehdr_size = sizeof(struct flash_file_hdr_g3);
3352 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3354 dev_err(&adapter->pdev->dev,
3355 "Invalid Cookie. UFI corrupted ?\n");
3359 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3360 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3361 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3363 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3364 case IMAGE_FIRMWARE_iSCSI:
3365 img_optype = OPTYPE_ISCSI_ACTIVE;
3367 case IMAGE_BOOT_CODE:
3368 img_optype = OPTYPE_REDBOOT;
3370 case IMAGE_OPTION_ROM_ISCSI:
3371 img_optype = OPTYPE_BIOS;
3373 case IMAGE_OPTION_ROM_PXE:
3374 img_optype = OPTYPE_PXE_BIOS;
3376 case IMAGE_OPTION_ROM_FCoE:
3377 img_optype = OPTYPE_FCOE_BIOS;
3379 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3380 img_optype = OPTYPE_ISCSI_BACKUP;
3383 img_optype = OPTYPE_NCSI_FW;
3389 if (img_optype == OPTYPE_REDBOOT) {
3390 redboot = be_flash_redboot(adapter, fw->data,
3391 img_offset, img_size,
3392 filehdr_size + img_hdrs_size);
3398 p += filehdr_size + img_offset + img_hdrs_size;
3399 if (p + img_size > fw->data + fw->size)
3402 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3404 dev_err(&adapter->pdev->dev,
3405 "Flashing section type %d failed.\n",
3406 fsec->fsec_entry[i].type);
3413 static int lancer_wait_idle(struct be_adapter *adapter)
3415 #define SLIPORT_IDLE_TIMEOUT 30
3419 for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3420 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3421 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3427 if (i == SLIPORT_IDLE_TIMEOUT)
3433 static int lancer_fw_reset(struct be_adapter *adapter)
3437 status = lancer_wait_idle(adapter);
3441 iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3442 PHYSDEV_CONTROL_OFFSET);
3447 static int lancer_fw_download(struct be_adapter *adapter,
3448 const struct firmware *fw)
3450 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3451 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3452 struct be_dma_mem flash_cmd;
3453 const u8 *data_ptr = NULL;
3454 u8 *dest_image_ptr = NULL;
3455 size_t image_size = 0;
3457 u32 data_written = 0;
3463 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3464 dev_err(&adapter->pdev->dev,
3465 "FW Image not properly aligned. "
3466 "Length must be 4 byte aligned.\n");
3468 goto lancer_fw_exit;
3471 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3472 + LANCER_FW_DOWNLOAD_CHUNK;
3473 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3474 &flash_cmd.dma, GFP_KERNEL);
3475 if (!flash_cmd.va) {
3477 goto lancer_fw_exit;
3480 dest_image_ptr = flash_cmd.va +
3481 sizeof(struct lancer_cmd_req_write_object);
3482 image_size = fw->size;
3483 data_ptr = fw->data;
3485 while (image_size) {
3486 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3488 /* Copy the image chunk content. */
3489 memcpy(dest_image_ptr, data_ptr, chunk_size);
3491 status = lancer_cmd_write_object(adapter, &flash_cmd,
3493 LANCER_FW_DOWNLOAD_LOCATION,
3494 &data_written, &change_status,
3499 offset += data_written;
3500 data_ptr += data_written;
3501 image_size -= data_written;
3505 /* Commit the FW written */
3506 status = lancer_cmd_write_object(adapter, &flash_cmd,
3508 LANCER_FW_DOWNLOAD_LOCATION,
3509 &data_written, &change_status,
3513 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3516 dev_err(&adapter->pdev->dev,
3517 "Firmware load error. "
3518 "Status code: 0x%x Additional Status: 0x%x\n",
3519 status, add_status);
3520 goto lancer_fw_exit;
3523 if (change_status == LANCER_FW_RESET_NEEDED) {
3524 status = lancer_fw_reset(adapter);
3526 dev_err(&adapter->pdev->dev,
3527 "Adapter busy for FW reset.\n"
3528 "New FW will not be active.\n");
3529 goto lancer_fw_exit;
3531 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3532 dev_err(&adapter->pdev->dev,
3533 "System reboot required for new FW"
3537 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3544 #define UFI_TYPE3R 10
3546 static int be_get_ufi_type(struct be_adapter *adapter,
3547 struct flash_file_hdr_g3 *fhdr)
3550 goto be_get_ufi_exit;
3552 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3554 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3555 if (fhdr->asic_type_rev == 0x10)
3559 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3563 dev_err(&adapter->pdev->dev,
3564 "UFI and Interface are not compatible for flashing\n");
3568 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3570 struct flash_file_hdr_g3 *fhdr3;
3571 struct image_hdr *img_hdr_ptr = NULL;
3572 struct be_dma_mem flash_cmd;
3574 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3576 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3577 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3578 &flash_cmd.dma, GFP_KERNEL);
3579 if (!flash_cmd.va) {
3585 fhdr3 = (struct flash_file_hdr_g3 *)p;
3587 ufi_type = be_get_ufi_type(adapter, fhdr3);
3589 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3590 for (i = 0; i < num_imgs; i++) {
3591 img_hdr_ptr = (struct image_hdr *)(fw->data +
3592 (sizeof(struct flash_file_hdr_g3) +
3593 i * sizeof(struct image_hdr)));
3594 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3597 status = be_flash_skyhawk(adapter, fw,
3598 &flash_cmd, num_imgs);
3601 status = be_flash_BEx(adapter, fw, &flash_cmd,
3605 /* Do not flash this ufi on BE3-R cards */
3606 if (adapter->asic_rev < 0x10)
3607 status = be_flash_BEx(adapter, fw,
3612 dev_err(&adapter->pdev->dev,
3613 "Can't load BE3 UFI on BE3R\n");
3619 if (ufi_type == UFI_TYPE2)
3620 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3621 else if (ufi_type == -1)
3624 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3627 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3631 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3637 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3639 const struct firmware *fw;
3642 if (!netif_running(adapter->netdev)) {
3643 dev_err(&adapter->pdev->dev,
3644 "Firmware load not allowed (interface is down)\n");
3648 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3652 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3654 if (lancer_chip(adapter))
3655 status = lancer_fw_download(adapter, fw);
3657 status = be_fw_download(adapter, fw);
3660 release_firmware(fw);
3664 static const struct net_device_ops be_netdev_ops = {
3665 .ndo_open = be_open,
3666 .ndo_stop = be_close,
3667 .ndo_start_xmit = be_xmit,
3668 .ndo_set_rx_mode = be_set_rx_mode,
3669 .ndo_set_mac_address = be_mac_addr_set,
3670 .ndo_change_mtu = be_change_mtu,
3671 .ndo_get_stats64 = be_get_stats64,
3672 .ndo_validate_addr = eth_validate_addr,
3673 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3674 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3675 .ndo_set_vf_mac = be_set_vf_mac,
3676 .ndo_set_vf_vlan = be_set_vf_vlan,
3677 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3678 .ndo_get_vf_config = be_get_vf_config,
3679 #ifdef CONFIG_NET_POLL_CONTROLLER
3680 .ndo_poll_controller = be_netpoll,
3684 static void be_netdev_init(struct net_device *netdev)
3686 struct be_adapter *adapter = netdev_priv(netdev);
3687 struct be_eq_obj *eqo;
3690 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3691 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3692 NETIF_F_HW_VLAN_CTAG_TX;
3693 if (be_multi_rxq(adapter))
3694 netdev->hw_features |= NETIF_F_RXHASH;
3696 netdev->features |= netdev->hw_features |
3697 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3699 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3700 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3702 netdev->priv_flags |= IFF_UNICAST_FLT;
3704 netdev->flags |= IFF_MULTICAST;
3706 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3708 netdev->netdev_ops = &be_netdev_ops;
3710 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3712 for_all_evt_queues(adapter, eqo, i)
3713 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3716 static void be_unmap_pci_bars(struct be_adapter *adapter)
3719 pci_iounmap(adapter->pdev, adapter->csr);
3721 pci_iounmap(adapter->pdev, adapter->db);
3724 static int db_bar(struct be_adapter *adapter)
3726 if (lancer_chip(adapter) || !be_physfn(adapter))
3732 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3734 if (skyhawk_chip(adapter)) {
3735 adapter->roce_db.size = 4096;
3736 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3738 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3744 static int be_map_pci_bars(struct be_adapter *adapter)
3749 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3750 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3751 SLI_INTF_IF_TYPE_SHIFT;
3753 if (BEx_chip(adapter) && be_physfn(adapter)) {
3754 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3755 if (adapter->csr == NULL)
3759 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3764 be_roce_map_pci_bars(adapter);
3768 be_unmap_pci_bars(adapter);
3772 static void be_ctrl_cleanup(struct be_adapter *adapter)
3774 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3776 be_unmap_pci_bars(adapter);
3779 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3782 mem = &adapter->rx_filter;
3784 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3788 static int be_ctrl_init(struct be_adapter *adapter)
3790 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3791 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3792 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3796 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3797 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3798 SLI_INTF_FAMILY_SHIFT;
3799 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3801 status = be_map_pci_bars(adapter);
3805 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3806 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3807 mbox_mem_alloc->size,
3808 &mbox_mem_alloc->dma,
3810 if (!mbox_mem_alloc->va) {
3812 goto unmap_pci_bars;
3814 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3815 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3816 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3817 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3819 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3820 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3822 GFP_KERNEL | __GFP_ZERO);
3823 if (rx_filter->va == NULL) {
3828 mutex_init(&adapter->mbox_lock);
3829 spin_lock_init(&adapter->mcc_lock);
3830 spin_lock_init(&adapter->mcc_cq_lock);
3832 init_completion(&adapter->flash_compl);
3833 pci_save_state(adapter->pdev);
3837 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3838 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3841 be_unmap_pci_bars(adapter);
3847 static void be_stats_cleanup(struct be_adapter *adapter)
3849 struct be_dma_mem *cmd = &adapter->stats_cmd;
3852 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3856 static int be_stats_init(struct be_adapter *adapter)
3858 struct be_dma_mem *cmd = &adapter->stats_cmd;
3860 if (lancer_chip(adapter))
3861 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3862 else if (BE2_chip(adapter))
3863 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3865 /* BE3 and Skyhawk */
3866 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3868 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3869 GFP_KERNEL | __GFP_ZERO);
3870 if (cmd->va == NULL)
3875 static void be_remove(struct pci_dev *pdev)
3877 struct be_adapter *adapter = pci_get_drvdata(pdev);
3882 be_roce_dev_remove(adapter);
3883 be_intr_set(adapter, false);
3885 cancel_delayed_work_sync(&adapter->func_recovery_work);
3887 unregister_netdev(adapter->netdev);
3891 /* tell fw we're done with firing cmds */
3892 be_cmd_fw_clean(adapter);
3894 be_stats_cleanup(adapter);
3896 be_ctrl_cleanup(adapter);
3898 pci_disable_pcie_error_reporting(pdev);
3900 pci_set_drvdata(pdev, NULL);
3901 pci_release_regions(pdev);
3902 pci_disable_device(pdev);
3904 free_netdev(adapter->netdev);
3907 bool be_is_wol_supported(struct be_adapter *adapter)
3909 return ((adapter->wol_cap & BE_WOL_CAP) &&
3910 !be_is_wol_excluded(adapter)) ? true : false;
3913 u32 be_get_fw_log_level(struct be_adapter *adapter)
3915 struct be_dma_mem extfat_cmd;
3916 struct be_fat_conf_params *cfgs;
3921 if (lancer_chip(adapter))
3924 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3925 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3926 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3929 if (!extfat_cmd.va) {
3930 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3935 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3937 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3938 sizeof(struct be_cmd_resp_hdr));
3939 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
3940 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3941 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3944 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3950 static int be_get_initial_config(struct be_adapter *adapter)
3955 status = be_cmd_get_cntl_attributes(adapter);
3959 status = be_cmd_get_acpi_wol_cap(adapter);
3961 /* in case of a failure to get wol capabillities
3962 * check the exclusion list to determine WOL capability */
3963 if (!be_is_wol_excluded(adapter))
3964 adapter->wol_cap |= BE_WOL_CAP;
3967 if (be_is_wol_supported(adapter))
3968 adapter->wol = true;
3970 /* Must be a power of 2 or else MODULO will BUG_ON */
3971 adapter->be_get_temp_freq = 64;
3973 level = be_get_fw_log_level(adapter);
3974 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3979 static int lancer_recover_func(struct be_adapter *adapter)
3983 status = lancer_test_and_set_rdy_state(adapter);
3987 if (netif_running(adapter->netdev))
3988 be_close(adapter->netdev);
3992 adapter->hw_error = false;
3993 adapter->fw_timeout = false;
3995 status = be_setup(adapter);
3999 if (netif_running(adapter->netdev)) {
4000 status = be_open(adapter->netdev);
4005 dev_err(&adapter->pdev->dev,
4006 "Adapter SLIPORT recovery succeeded\n");
4009 if (adapter->eeh_error)
4010 dev_err(&adapter->pdev->dev,
4011 "Adapter SLIPORT recovery failed\n");
4016 static void be_func_recovery_task(struct work_struct *work)
4018 struct be_adapter *adapter =
4019 container_of(work, struct be_adapter, func_recovery_work.work);
4022 be_detect_error(adapter);
4024 if (adapter->hw_error && lancer_chip(adapter)) {
4026 if (adapter->eeh_error)
4030 netif_device_detach(adapter->netdev);
4033 status = lancer_recover_func(adapter);
4036 netif_device_attach(adapter->netdev);
4040 schedule_delayed_work(&adapter->func_recovery_work,
4041 msecs_to_jiffies(1000));
4044 static void be_worker(struct work_struct *work)
4046 struct be_adapter *adapter =
4047 container_of(work, struct be_adapter, work.work);
4048 struct be_rx_obj *rxo;
4049 struct be_eq_obj *eqo;
4052 /* when interrupts are not yet enabled, just reap any pending
4053 * mcc completions */
4054 if (!netif_running(adapter->netdev)) {
4056 be_process_mcc(adapter);
4061 if (!adapter->stats_cmd_sent) {
4062 if (lancer_chip(adapter))
4063 lancer_cmd_get_pport_stats(adapter,
4064 &adapter->stats_cmd);
4066 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4069 if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4070 be_cmd_get_die_temperature(adapter);
4072 for_all_rx_queues(adapter, rxo, i) {
4073 if (rxo->rx_post_starved) {
4074 rxo->rx_post_starved = false;
4075 be_post_rx_frags(rxo, GFP_KERNEL);
4079 for_all_evt_queues(adapter, eqo, i)
4080 be_eqd_update(adapter, eqo);
4083 adapter->work_counter++;
4084 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4087 static bool be_reset_required(struct be_adapter *adapter)
4089 return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
4092 static char *mc_name(struct be_adapter *adapter)
4094 if (adapter->function_mode & FLEX10_MODE)
4096 else if (adapter->function_mode & VNIC_MODE)
4098 else if (adapter->function_mode & UMC_ENABLED)
4104 static inline char *func_name(struct be_adapter *adapter)
4106 return be_physfn(adapter) ? "PF" : "VF";
4109 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4112 struct be_adapter *adapter;
4113 struct net_device *netdev;
4116 status = pci_enable_device(pdev);
4120 status = pci_request_regions(pdev, DRV_NAME);
4123 pci_set_master(pdev);
4125 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4126 if (netdev == NULL) {
4130 adapter = netdev_priv(netdev);
4131 adapter->pdev = pdev;
4132 pci_set_drvdata(pdev, adapter);
4133 adapter->netdev = netdev;
4134 SET_NETDEV_DEV(netdev, &pdev->dev);
4136 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4138 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4140 dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4143 netdev->features |= NETIF_F_HIGHDMA;
4145 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4147 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4152 status = pci_enable_pcie_error_reporting(pdev);
4154 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
4156 status = be_ctrl_init(adapter);
4160 /* sync up with fw's ready state */
4161 if (be_physfn(adapter)) {
4162 status = be_fw_wait_ready(adapter);
4167 /* tell fw we're ready to fire cmds */
4168 status = be_cmd_fw_init(adapter);
4172 if (be_reset_required(adapter)) {
4173 status = be_cmd_reset_function(adapter);
4178 /* Wait for interrupts to quiesce after an FLR */
4181 /* Allow interrupts for other ULPs running on NIC function */
4182 be_intr_set(adapter, true);
4184 status = be_stats_init(adapter);
4188 status = be_get_initial_config(adapter);
4192 INIT_DELAYED_WORK(&adapter->work, be_worker);
4193 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4194 adapter->rx_fc = adapter->tx_fc = true;
4196 status = be_setup(adapter);
4200 be_netdev_init(netdev);
4201 status = register_netdev(netdev);
4205 be_roce_dev_add(adapter);
4207 schedule_delayed_work(&adapter->func_recovery_work,
4208 msecs_to_jiffies(1000));
4210 be_cmd_query_port_name(adapter, &port_name);
4212 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4213 func_name(adapter), mc_name(adapter), port_name);
4220 be_stats_cleanup(adapter);
4222 be_ctrl_cleanup(adapter);
4224 free_netdev(netdev);
4225 pci_set_drvdata(pdev, NULL);
4227 pci_release_regions(pdev);
4229 pci_disable_device(pdev);
4231 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4235 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4237 struct be_adapter *adapter = pci_get_drvdata(pdev);
4238 struct net_device *netdev = adapter->netdev;
4241 be_setup_wol(adapter, true);
4243 cancel_delayed_work_sync(&adapter->func_recovery_work);
4245 netif_device_detach(netdev);
4246 if (netif_running(netdev)) {
4253 pci_save_state(pdev);
4254 pci_disable_device(pdev);
4255 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4259 static int be_resume(struct pci_dev *pdev)
4262 struct be_adapter *adapter = pci_get_drvdata(pdev);
4263 struct net_device *netdev = adapter->netdev;
4265 netif_device_detach(netdev);
4267 status = pci_enable_device(pdev);
4271 pci_set_power_state(pdev, 0);
4272 pci_restore_state(pdev);
4274 /* tell fw we're ready to fire cmds */
4275 status = be_cmd_fw_init(adapter);
4280 if (netif_running(netdev)) {
4286 schedule_delayed_work(&adapter->func_recovery_work,
4287 msecs_to_jiffies(1000));
4288 netif_device_attach(netdev);
4291 be_setup_wol(adapter, false);
4297 * An FLR will stop BE from DMAing any data.
4299 static void be_shutdown(struct pci_dev *pdev)
4301 struct be_adapter *adapter = pci_get_drvdata(pdev);
4306 cancel_delayed_work_sync(&adapter->work);
4307 cancel_delayed_work_sync(&adapter->func_recovery_work);
4309 netif_device_detach(adapter->netdev);
4311 be_cmd_reset_function(adapter);
4313 pci_disable_device(pdev);
4316 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4317 pci_channel_state_t state)
4319 struct be_adapter *adapter = pci_get_drvdata(pdev);
4320 struct net_device *netdev = adapter->netdev;
4322 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4324 adapter->eeh_error = true;
4326 cancel_delayed_work_sync(&adapter->func_recovery_work);
4329 netif_device_detach(netdev);
4332 if (netif_running(netdev)) {
4339 if (state == pci_channel_io_perm_failure)
4340 return PCI_ERS_RESULT_DISCONNECT;
4342 pci_disable_device(pdev);
4344 /* The error could cause the FW to trigger a flash debug dump.
4345 * Resetting the card while flash dump is in progress
4346 * can cause it not to recover; wait for it to finish.
4347 * Wait only for first function as it is needed only once per
4350 if (pdev->devfn == 0)
4353 return PCI_ERS_RESULT_NEED_RESET;
4356 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4358 struct be_adapter *adapter = pci_get_drvdata(pdev);
4361 dev_info(&adapter->pdev->dev, "EEH reset\n");
4362 be_clear_all_error(adapter);
4364 status = pci_enable_device(pdev);
4366 return PCI_ERS_RESULT_DISCONNECT;
4368 pci_set_master(pdev);
4369 pci_set_power_state(pdev, 0);
4370 pci_restore_state(pdev);
4372 /* Check if card is ok and fw is ready */
4373 dev_info(&adapter->pdev->dev,
4374 "Waiting for FW to be ready after EEH reset\n");
4375 status = be_fw_wait_ready(adapter);
4377 return PCI_ERS_RESULT_DISCONNECT;
4379 pci_cleanup_aer_uncorrect_error_status(pdev);
4380 return PCI_ERS_RESULT_RECOVERED;
4383 static void be_eeh_resume(struct pci_dev *pdev)
4386 struct be_adapter *adapter = pci_get_drvdata(pdev);
4387 struct net_device *netdev = adapter->netdev;
4389 dev_info(&adapter->pdev->dev, "EEH resume\n");
4391 pci_save_state(pdev);
4393 /* tell fw we're ready to fire cmds */
4394 status = be_cmd_fw_init(adapter);
4398 status = be_cmd_reset_function(adapter);
4402 status = be_setup(adapter);
4406 if (netif_running(netdev)) {
4407 status = be_open(netdev);
4412 schedule_delayed_work(&adapter->func_recovery_work,
4413 msecs_to_jiffies(1000));
4414 netif_device_attach(netdev);
4417 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4420 static const struct pci_error_handlers be_eeh_handlers = {
4421 .error_detected = be_eeh_err_detected,
4422 .slot_reset = be_eeh_reset,
4423 .resume = be_eeh_resume,
4426 static struct pci_driver be_driver = {
4428 .id_table = be_dev_ids,
4430 .remove = be_remove,
4431 .suspend = be_suspend,
4432 .resume = be_resume,
4433 .shutdown = be_shutdown,
4434 .err_handler = &be_eeh_handlers
4437 static int __init be_init_module(void)
4439 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4440 rx_frag_size != 2048) {
4441 printk(KERN_WARNING DRV_NAME
4442 " : Module param rx_frag_size must be 2048/4096/8192."
4444 rx_frag_size = 2048;
4447 return pci_register_driver(&be_driver);
4449 module_init(be_init_module);
4451 static void __exit be_exit_module(void)
4453 pci_unregister_driver(&be_driver);
4455 module_exit(be_exit_module);