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 __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
782 static netdev_tx_t be_xmit(struct sk_buff *skb,
783 struct net_device *netdev)
785 struct be_adapter *adapter = netdev_priv(netdev);
786 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
787 struct be_queue_info *txq = &txo->q;
788 struct iphdr *ip = NULL;
789 u32 wrb_cnt = 0, copied = 0;
790 u32 start = txq->head, eth_hdr_len;
791 bool dummy_wrb, stopped = false;
793 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
794 VLAN_ETH_HLEN : ETH_HLEN;
796 /* HW has a bug which considers padding bytes as legal
797 * and modifies the IPv4 hdr's 'tot_len' field
799 if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
801 ip = (struct iphdr *)ip_hdr(skb);
802 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
805 /* HW has a bug wherein it will calculate CSUM for VLAN
806 * pkts even though it is disabled.
807 * Manually insert VLAN in pkt.
809 if (skb->ip_summed != CHECKSUM_PARTIAL &&
810 be_vlan_tag_chk(adapter, skb)) {
811 skb = be_insert_vlan_in_pkt(adapter, skb);
816 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
818 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
820 int gso_segs = skb_shinfo(skb)->gso_segs;
822 /* record the sent skb in the sent_skb table */
823 BUG_ON(txo->sent_skb_list[start]);
824 txo->sent_skb_list[start] = skb;
826 /* Ensure txq has space for the next skb; Else stop the queue
827 * *BEFORE* ringing the tx doorbell, so that we serialze the
828 * tx compls of the current transmit which'll wake up the queue
830 atomic_add(wrb_cnt, &txq->used);
831 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
833 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
837 be_txq_notify(adapter, txo, wrb_cnt);
839 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
842 dev_kfree_skb_any(skb);
848 static int be_change_mtu(struct net_device *netdev, int new_mtu)
850 struct be_adapter *adapter = netdev_priv(netdev);
851 if (new_mtu < BE_MIN_MTU ||
852 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
853 (ETH_HLEN + ETH_FCS_LEN))) {
854 dev_info(&adapter->pdev->dev,
855 "MTU must be between %d and %d bytes\n",
857 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
860 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
861 netdev->mtu, new_mtu);
862 netdev->mtu = new_mtu;
867 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
868 * If the user configures more, place BE in vlan promiscuous mode.
870 static int be_vid_config(struct be_adapter *adapter)
872 u16 vids[BE_NUM_VLANS_SUPPORTED];
876 /* No need to further configure vids if in promiscuous mode */
877 if (adapter->promiscuous)
880 if (adapter->vlans_added > adapter->max_vlans)
881 goto set_vlan_promisc;
883 /* Construct VLAN Table to give to HW */
884 for (i = 0; i < VLAN_N_VID; i++)
885 if (adapter->vlan_tag[i])
886 vids[num++] = cpu_to_le16(i);
888 status = be_cmd_vlan_config(adapter, adapter->if_handle,
891 /* Set to VLAN promisc mode as setting VLAN filter failed */
893 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
894 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
895 goto set_vlan_promisc;
901 status = be_cmd_vlan_config(adapter, adapter->if_handle,
906 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
908 struct be_adapter *adapter = netdev_priv(netdev);
911 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
916 /* Packets with VID 0 are always received by Lancer by default */
917 if (lancer_chip(adapter) && vid == 0)
920 adapter->vlan_tag[vid] = 1;
921 if (adapter->vlans_added <= (adapter->max_vlans + 1))
922 status = be_vid_config(adapter);
925 adapter->vlans_added++;
927 adapter->vlan_tag[vid] = 0;
932 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
934 struct be_adapter *adapter = netdev_priv(netdev);
937 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
942 /* Packets with VID 0 are always received by Lancer by default */
943 if (lancer_chip(adapter) && vid == 0)
946 adapter->vlan_tag[vid] = 0;
947 if (adapter->vlans_added <= adapter->max_vlans)
948 status = be_vid_config(adapter);
951 adapter->vlans_added--;
953 adapter->vlan_tag[vid] = 1;
958 static void be_set_rx_mode(struct net_device *netdev)
960 struct be_adapter *adapter = netdev_priv(netdev);
963 if (netdev->flags & IFF_PROMISC) {
964 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
965 adapter->promiscuous = true;
969 /* BE was previously in promiscuous mode; disable it */
970 if (adapter->promiscuous) {
971 adapter->promiscuous = false;
972 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
974 if (adapter->vlans_added)
975 be_vid_config(adapter);
978 /* Enable multicast promisc if num configured exceeds what we support */
979 if (netdev->flags & IFF_ALLMULTI ||
980 netdev_mc_count(netdev) > adapter->max_mcast_mac) {
981 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
985 if (netdev_uc_count(netdev) != adapter->uc_macs) {
986 struct netdev_hw_addr *ha;
987 int i = 1; /* First slot is claimed by the Primary MAC */
989 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
990 be_cmd_pmac_del(adapter, adapter->if_handle,
991 adapter->pmac_id[i], 0);
994 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
995 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
996 adapter->promiscuous = true;
1000 netdev_for_each_uc_addr(ha, adapter->netdev) {
1001 adapter->uc_macs++; /* First slot is for Primary MAC */
1002 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1004 &adapter->pmac_id[adapter->uc_macs], 0);
1008 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1010 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1012 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1013 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1014 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1020 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1022 struct be_adapter *adapter = netdev_priv(netdev);
1023 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1025 bool active_mac = false;
1027 u8 old_mac[ETH_ALEN];
1029 if (!sriov_enabled(adapter))
1032 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1035 if (lancer_chip(adapter)) {
1036 status = be_cmd_get_mac_from_list(adapter, old_mac, &active_mac,
1038 if (!status && active_mac)
1039 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1042 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
1044 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1045 vf_cfg->pmac_id, vf + 1);
1047 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1048 &vf_cfg->pmac_id, vf + 1);
1052 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1055 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1060 static int be_get_vf_config(struct net_device *netdev, int vf,
1061 struct ifla_vf_info *vi)
1063 struct be_adapter *adapter = netdev_priv(netdev);
1064 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1066 if (!sriov_enabled(adapter))
1069 if (vf >= adapter->num_vfs)
1073 vi->tx_rate = vf_cfg->tx_rate;
1074 vi->vlan = vf_cfg->vlan_tag;
1076 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1081 static int be_set_vf_vlan(struct net_device *netdev,
1082 int vf, u16 vlan, u8 qos)
1084 struct be_adapter *adapter = netdev_priv(netdev);
1087 if (!sriov_enabled(adapter))
1090 if (vf >= adapter->num_vfs || vlan > 4095)
1094 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1095 /* If this is new value, program it. Else skip. */
1096 adapter->vf_cfg[vf].vlan_tag = vlan;
1098 status = be_cmd_set_hsw_config(adapter, vlan,
1099 vf + 1, adapter->vf_cfg[vf].if_handle);
1102 /* Reset Transparent Vlan Tagging. */
1103 adapter->vf_cfg[vf].vlan_tag = 0;
1104 vlan = adapter->vf_cfg[vf].def_vid;
1105 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1106 adapter->vf_cfg[vf].if_handle);
1111 dev_info(&adapter->pdev->dev,
1112 "VLAN %d config on VF %d failed\n", vlan, vf);
1116 static int be_set_vf_tx_rate(struct net_device *netdev,
1119 struct be_adapter *adapter = netdev_priv(netdev);
1122 if (!sriov_enabled(adapter))
1125 if (vf >= adapter->num_vfs)
1128 if (rate < 100 || rate > 10000) {
1129 dev_err(&adapter->pdev->dev,
1130 "tx rate must be between 100 and 10000 Mbps\n");
1134 if (lancer_chip(adapter))
1135 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1137 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1140 dev_err(&adapter->pdev->dev,
1141 "tx rate %d on VF %d failed\n", rate, vf);
1143 adapter->vf_cfg[vf].tx_rate = rate;
1147 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1149 struct pci_dev *dev, *pdev = adapter->pdev;
1150 int vfs = 0, assigned_vfs = 0, pos;
1153 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1156 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1157 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1159 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1161 if (dev->is_virtfn && pci_physfn(dev) == pdev) {
1163 if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1166 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1168 return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1171 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1173 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1174 ulong now = jiffies;
1175 ulong delta = now - stats->rx_jiffies;
1177 unsigned int start, eqd;
1179 if (!eqo->enable_aic) {
1184 if (eqo->idx >= adapter->num_rx_qs)
1187 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1189 /* Wrapped around */
1190 if (time_before(now, stats->rx_jiffies)) {
1191 stats->rx_jiffies = now;
1195 /* Update once a second */
1200 start = u64_stats_fetch_begin_bh(&stats->sync);
1201 pkts = stats->rx_pkts;
1202 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1204 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1205 stats->rx_pkts_prev = pkts;
1206 stats->rx_jiffies = now;
1207 eqd = (stats->rx_pps / 110000) << 3;
1208 eqd = min(eqd, eqo->max_eqd);
1209 eqd = max(eqd, eqo->min_eqd);
1214 if (eqd != eqo->cur_eqd) {
1215 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1220 static void be_rx_stats_update(struct be_rx_obj *rxo,
1221 struct be_rx_compl_info *rxcp)
1223 struct be_rx_stats *stats = rx_stats(rxo);
1225 u64_stats_update_begin(&stats->sync);
1227 stats->rx_bytes += rxcp->pkt_size;
1229 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1230 stats->rx_mcast_pkts++;
1232 stats->rx_compl_err++;
1233 u64_stats_update_end(&stats->sync);
1236 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1238 /* L4 checksum is not reliable for non TCP/UDP packets.
1239 * Also ignore ipcksm for ipv6 pkts */
1240 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1241 (rxcp->ip_csum || rxcp->ipv6);
1244 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1247 struct be_adapter *adapter = rxo->adapter;
1248 struct be_rx_page_info *rx_page_info;
1249 struct be_queue_info *rxq = &rxo->q;
1251 rx_page_info = &rxo->page_info_tbl[frag_idx];
1252 BUG_ON(!rx_page_info->page);
1254 if (rx_page_info->last_page_user) {
1255 dma_unmap_page(&adapter->pdev->dev,
1256 dma_unmap_addr(rx_page_info, bus),
1257 adapter->big_page_size, DMA_FROM_DEVICE);
1258 rx_page_info->last_page_user = false;
1261 atomic_dec(&rxq->used);
1262 return rx_page_info;
1265 /* Throwaway the data in the Rx completion */
1266 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1267 struct be_rx_compl_info *rxcp)
1269 struct be_queue_info *rxq = &rxo->q;
1270 struct be_rx_page_info *page_info;
1271 u16 i, num_rcvd = rxcp->num_rcvd;
1273 for (i = 0; i < num_rcvd; i++) {
1274 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1275 put_page(page_info->page);
1276 memset(page_info, 0, sizeof(*page_info));
1277 index_inc(&rxcp->rxq_idx, rxq->len);
1282 * skb_fill_rx_data forms a complete skb for an ether frame
1283 * indicated by rxcp.
1285 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1286 struct be_rx_compl_info *rxcp)
1288 struct be_queue_info *rxq = &rxo->q;
1289 struct be_rx_page_info *page_info;
1291 u16 hdr_len, curr_frag_len, remaining;
1294 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1295 start = page_address(page_info->page) + page_info->page_offset;
1298 /* Copy data in the first descriptor of this completion */
1299 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1301 skb->len = curr_frag_len;
1302 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1303 memcpy(skb->data, start, curr_frag_len);
1304 /* Complete packet has now been moved to data */
1305 put_page(page_info->page);
1307 skb->tail += curr_frag_len;
1310 memcpy(skb->data, start, hdr_len);
1311 skb_shinfo(skb)->nr_frags = 1;
1312 skb_frag_set_page(skb, 0, page_info->page);
1313 skb_shinfo(skb)->frags[0].page_offset =
1314 page_info->page_offset + hdr_len;
1315 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1316 skb->data_len = curr_frag_len - hdr_len;
1317 skb->truesize += rx_frag_size;
1318 skb->tail += hdr_len;
1320 page_info->page = NULL;
1322 if (rxcp->pkt_size <= rx_frag_size) {
1323 BUG_ON(rxcp->num_rcvd != 1);
1327 /* More frags present for this completion */
1328 index_inc(&rxcp->rxq_idx, rxq->len);
1329 remaining = rxcp->pkt_size - curr_frag_len;
1330 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1331 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1332 curr_frag_len = min(remaining, rx_frag_size);
1334 /* Coalesce all frags from the same physical page in one slot */
1335 if (page_info->page_offset == 0) {
1338 skb_frag_set_page(skb, j, page_info->page);
1339 skb_shinfo(skb)->frags[j].page_offset =
1340 page_info->page_offset;
1341 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1342 skb_shinfo(skb)->nr_frags++;
1344 put_page(page_info->page);
1347 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1348 skb->len += curr_frag_len;
1349 skb->data_len += curr_frag_len;
1350 skb->truesize += rx_frag_size;
1351 remaining -= curr_frag_len;
1352 index_inc(&rxcp->rxq_idx, rxq->len);
1353 page_info->page = NULL;
1355 BUG_ON(j > MAX_SKB_FRAGS);
1358 /* Process the RX completion indicated by rxcp when GRO is disabled */
1359 static void be_rx_compl_process(struct be_rx_obj *rxo,
1360 struct be_rx_compl_info *rxcp)
1362 struct be_adapter *adapter = rxo->adapter;
1363 struct net_device *netdev = adapter->netdev;
1364 struct sk_buff *skb;
1366 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1367 if (unlikely(!skb)) {
1368 rx_stats(rxo)->rx_drops_no_skbs++;
1369 be_rx_compl_discard(rxo, rxcp);
1373 skb_fill_rx_data(rxo, skb, rxcp);
1375 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1376 skb->ip_summed = CHECKSUM_UNNECESSARY;
1378 skb_checksum_none_assert(skb);
1380 skb->protocol = eth_type_trans(skb, netdev);
1381 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1382 if (netdev->features & NETIF_F_RXHASH)
1383 skb->rxhash = rxcp->rss_hash;
1387 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1389 netif_receive_skb(skb);
1392 /* Process the RX completion indicated by rxcp when GRO is enabled */
1393 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1394 struct be_rx_compl_info *rxcp)
1396 struct be_adapter *adapter = rxo->adapter;
1397 struct be_rx_page_info *page_info;
1398 struct sk_buff *skb = NULL;
1399 struct be_queue_info *rxq = &rxo->q;
1400 u16 remaining, curr_frag_len;
1403 skb = napi_get_frags(napi);
1405 be_rx_compl_discard(rxo, rxcp);
1409 remaining = rxcp->pkt_size;
1410 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1411 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1413 curr_frag_len = min(remaining, rx_frag_size);
1415 /* Coalesce all frags from the same physical page in one slot */
1416 if (i == 0 || page_info->page_offset == 0) {
1417 /* First frag or Fresh page */
1419 skb_frag_set_page(skb, j, page_info->page);
1420 skb_shinfo(skb)->frags[j].page_offset =
1421 page_info->page_offset;
1422 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1424 put_page(page_info->page);
1426 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1427 skb->truesize += rx_frag_size;
1428 remaining -= curr_frag_len;
1429 index_inc(&rxcp->rxq_idx, rxq->len);
1430 memset(page_info, 0, sizeof(*page_info));
1432 BUG_ON(j > MAX_SKB_FRAGS);
1434 skb_shinfo(skb)->nr_frags = j + 1;
1435 skb->len = rxcp->pkt_size;
1436 skb->data_len = rxcp->pkt_size;
1437 skb->ip_summed = CHECKSUM_UNNECESSARY;
1438 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1439 if (adapter->netdev->features & NETIF_F_RXHASH)
1440 skb->rxhash = rxcp->rss_hash;
1443 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1445 napi_gro_frags(napi);
1448 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1449 struct be_rx_compl_info *rxcp)
1452 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1453 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1454 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1455 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1456 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1458 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1460 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1462 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1464 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1466 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1468 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1470 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1472 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1474 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1477 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1480 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1481 struct be_rx_compl_info *rxcp)
1484 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1485 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1486 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1487 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1488 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1490 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1492 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1494 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1496 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1498 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1500 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1502 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1504 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1506 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1509 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1512 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1514 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1515 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1516 struct be_adapter *adapter = rxo->adapter;
1518 /* For checking the valid bit it is Ok to use either definition as the
1519 * valid bit is at the same position in both v0 and v1 Rx compl */
1520 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1524 be_dws_le_to_cpu(compl, sizeof(*compl));
1526 if (adapter->be3_native)
1527 be_parse_rx_compl_v1(compl, rxcp);
1529 be_parse_rx_compl_v0(compl, rxcp);
1532 /* vlanf could be wrongly set in some cards.
1533 * ignore if vtm is not set */
1534 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1537 if (!lancer_chip(adapter))
1538 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1540 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1541 !adapter->vlan_tag[rxcp->vlan_tag])
1545 /* As the compl has been parsed, reset it; we wont touch it again */
1546 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1548 queue_tail_inc(&rxo->cq);
1552 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1554 u32 order = get_order(size);
1558 return alloc_pages(gfp, order);
1562 * Allocate a page, split it to fragments of size rx_frag_size and post as
1563 * receive buffers to BE
1565 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1567 struct be_adapter *adapter = rxo->adapter;
1568 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1569 struct be_queue_info *rxq = &rxo->q;
1570 struct page *pagep = NULL;
1571 struct be_eth_rx_d *rxd;
1572 u64 page_dmaaddr = 0, frag_dmaaddr;
1573 u32 posted, page_offset = 0;
1575 page_info = &rxo->page_info_tbl[rxq->head];
1576 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1578 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1579 if (unlikely(!pagep)) {
1580 rx_stats(rxo)->rx_post_fail++;
1583 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1584 0, adapter->big_page_size,
1586 page_info->page_offset = 0;
1589 page_info->page_offset = page_offset + rx_frag_size;
1591 page_offset = page_info->page_offset;
1592 page_info->page = pagep;
1593 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1594 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1596 rxd = queue_head_node(rxq);
1597 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1598 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1600 /* Any space left in the current big page for another frag? */
1601 if ((page_offset + rx_frag_size + rx_frag_size) >
1602 adapter->big_page_size) {
1604 page_info->last_page_user = true;
1607 prev_page_info = page_info;
1608 queue_head_inc(rxq);
1609 page_info = &rxo->page_info_tbl[rxq->head];
1612 prev_page_info->last_page_user = true;
1615 atomic_add(posted, &rxq->used);
1616 be_rxq_notify(adapter, rxq->id, posted);
1617 } else if (atomic_read(&rxq->used) == 0) {
1618 /* Let be_worker replenish when memory is available */
1619 rxo->rx_post_starved = true;
1623 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1625 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1627 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1631 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1633 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1635 queue_tail_inc(tx_cq);
1639 static u16 be_tx_compl_process(struct be_adapter *adapter,
1640 struct be_tx_obj *txo, u16 last_index)
1642 struct be_queue_info *txq = &txo->q;
1643 struct be_eth_wrb *wrb;
1644 struct sk_buff **sent_skbs = txo->sent_skb_list;
1645 struct sk_buff *sent_skb;
1646 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1647 bool unmap_skb_hdr = true;
1649 sent_skb = sent_skbs[txq->tail];
1651 sent_skbs[txq->tail] = NULL;
1653 /* skip header wrb */
1654 queue_tail_inc(txq);
1657 cur_index = txq->tail;
1658 wrb = queue_tail_node(txq);
1659 unmap_tx_frag(&adapter->pdev->dev, wrb,
1660 (unmap_skb_hdr && skb_headlen(sent_skb)));
1661 unmap_skb_hdr = false;
1664 queue_tail_inc(txq);
1665 } while (cur_index != last_index);
1667 kfree_skb(sent_skb);
1671 /* Return the number of events in the event queue */
1672 static inline int events_get(struct be_eq_obj *eqo)
1674 struct be_eq_entry *eqe;
1678 eqe = queue_tail_node(&eqo->q);
1685 queue_tail_inc(&eqo->q);
1691 /* Leaves the EQ is disarmed state */
1692 static void be_eq_clean(struct be_eq_obj *eqo)
1694 int num = events_get(eqo);
1696 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1699 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1701 struct be_rx_page_info *page_info;
1702 struct be_queue_info *rxq = &rxo->q;
1703 struct be_queue_info *rx_cq = &rxo->cq;
1704 struct be_rx_compl_info *rxcp;
1705 struct be_adapter *adapter = rxo->adapter;
1709 /* Consume pending rx completions.
1710 * Wait for the flush completion (identified by zero num_rcvd)
1711 * to arrive. Notify CQ even when there are no more CQ entries
1712 * for HW to flush partially coalesced CQ entries.
1713 * In Lancer, there is no need to wait for flush compl.
1716 rxcp = be_rx_compl_get(rxo);
1718 if (lancer_chip(adapter))
1721 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1722 dev_warn(&adapter->pdev->dev,
1723 "did not receive flush compl\n");
1726 be_cq_notify(adapter, rx_cq->id, true, 0);
1729 be_rx_compl_discard(rxo, rxcp);
1730 be_cq_notify(adapter, rx_cq->id, true, 1);
1731 if (rxcp->num_rcvd == 0)
1736 /* After cleanup, leave the CQ in unarmed state */
1737 be_cq_notify(adapter, rx_cq->id, false, 0);
1739 /* Then free posted rx buffers that were not used */
1740 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1741 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1742 page_info = get_rx_page_info(rxo, tail);
1743 put_page(page_info->page);
1744 memset(page_info, 0, sizeof(*page_info));
1746 BUG_ON(atomic_read(&rxq->used));
1747 rxq->tail = rxq->head = 0;
1750 static void be_tx_compl_clean(struct be_adapter *adapter)
1752 struct be_tx_obj *txo;
1753 struct be_queue_info *txq;
1754 struct be_eth_tx_compl *txcp;
1755 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1756 struct sk_buff *sent_skb;
1758 int i, pending_txqs;
1760 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1762 pending_txqs = adapter->num_tx_qs;
1764 for_all_tx_queues(adapter, txo, i) {
1766 while ((txcp = be_tx_compl_get(&txo->cq))) {
1768 AMAP_GET_BITS(struct amap_eth_tx_compl,
1770 num_wrbs += be_tx_compl_process(adapter, txo,
1775 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1776 atomic_sub(num_wrbs, &txq->used);
1780 if (atomic_read(&txq->used) == 0)
1784 if (pending_txqs == 0 || ++timeo > 200)
1790 for_all_tx_queues(adapter, txo, i) {
1792 if (atomic_read(&txq->used))
1793 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1794 atomic_read(&txq->used));
1796 /* free posted tx for which compls will never arrive */
1797 while (atomic_read(&txq->used)) {
1798 sent_skb = txo->sent_skb_list[txq->tail];
1799 end_idx = txq->tail;
1800 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1802 index_adv(&end_idx, num_wrbs - 1, txq->len);
1803 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1804 atomic_sub(num_wrbs, &txq->used);
1809 static void be_evt_queues_destroy(struct be_adapter *adapter)
1811 struct be_eq_obj *eqo;
1814 for_all_evt_queues(adapter, eqo, i) {
1815 if (eqo->q.created) {
1817 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1819 be_queue_free(adapter, &eqo->q);
1823 static int be_evt_queues_create(struct be_adapter *adapter)
1825 struct be_queue_info *eq;
1826 struct be_eq_obj *eqo;
1829 adapter->num_evt_qs = num_irqs(adapter);
1831 for_all_evt_queues(adapter, eqo, i) {
1832 eqo->adapter = adapter;
1833 eqo->tx_budget = BE_TX_BUDGET;
1835 eqo->max_eqd = BE_MAX_EQD;
1836 eqo->enable_aic = true;
1839 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1840 sizeof(struct be_eq_entry));
1844 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1851 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1853 struct be_queue_info *q;
1855 q = &adapter->mcc_obj.q;
1857 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1858 be_queue_free(adapter, q);
1860 q = &adapter->mcc_obj.cq;
1862 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1863 be_queue_free(adapter, q);
1866 /* Must be called only after TX qs are created as MCC shares TX EQ */
1867 static int be_mcc_queues_create(struct be_adapter *adapter)
1869 struct be_queue_info *q, *cq;
1871 cq = &adapter->mcc_obj.cq;
1872 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1873 sizeof(struct be_mcc_compl)))
1876 /* Use the default EQ for MCC completions */
1877 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1880 q = &adapter->mcc_obj.q;
1881 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1882 goto mcc_cq_destroy;
1884 if (be_cmd_mccq_create(adapter, q, cq))
1890 be_queue_free(adapter, q);
1892 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1894 be_queue_free(adapter, cq);
1899 static void be_tx_queues_destroy(struct be_adapter *adapter)
1901 struct be_queue_info *q;
1902 struct be_tx_obj *txo;
1905 for_all_tx_queues(adapter, txo, i) {
1908 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1909 be_queue_free(adapter, q);
1913 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1914 be_queue_free(adapter, q);
1918 static int be_num_txqs_want(struct be_adapter *adapter)
1920 if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
1921 be_is_mc(adapter) ||
1922 (!lancer_chip(adapter) && !be_physfn(adapter)) ||
1926 return adapter->max_tx_queues;
1929 static int be_tx_cqs_create(struct be_adapter *adapter)
1931 struct be_queue_info *cq, *eq;
1933 struct be_tx_obj *txo;
1936 adapter->num_tx_qs = be_num_txqs_want(adapter);
1937 if (adapter->num_tx_qs != MAX_TX_QS) {
1939 netif_set_real_num_tx_queues(adapter->netdev,
1940 adapter->num_tx_qs);
1944 for_all_tx_queues(adapter, txo, i) {
1946 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
1947 sizeof(struct be_eth_tx_compl));
1951 /* If num_evt_qs is less than num_tx_qs, then more than
1952 * one txq share an eq
1954 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1955 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
1962 static int be_tx_qs_create(struct be_adapter *adapter)
1964 struct be_tx_obj *txo;
1967 for_all_tx_queues(adapter, txo, i) {
1968 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
1969 sizeof(struct be_eth_wrb));
1973 status = be_cmd_txq_create(adapter, txo);
1978 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
1979 adapter->num_tx_qs);
1983 static void be_rx_cqs_destroy(struct be_adapter *adapter)
1985 struct be_queue_info *q;
1986 struct be_rx_obj *rxo;
1989 for_all_rx_queues(adapter, rxo, i) {
1992 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1993 be_queue_free(adapter, q);
1997 static int be_rx_cqs_create(struct be_adapter *adapter)
1999 struct be_queue_info *eq, *cq;
2000 struct be_rx_obj *rxo;
2003 /* We'll create as many RSS rings as there are irqs.
2004 * But when there's only one irq there's no use creating RSS rings
2006 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
2007 num_irqs(adapter) + 1 : 1;
2008 if (adapter->num_rx_qs != MAX_RX_QS) {
2010 netif_set_real_num_rx_queues(adapter->netdev,
2011 adapter->num_rx_qs);
2015 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2016 for_all_rx_queues(adapter, rxo, i) {
2017 rxo->adapter = adapter;
2019 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2020 sizeof(struct be_eth_rx_compl));
2024 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2025 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2030 dev_info(&adapter->pdev->dev,
2031 "created %d RSS queue(s) and 1 default RX queue\n",
2032 adapter->num_rx_qs - 1);
2036 static irqreturn_t be_intx(int irq, void *dev)
2038 struct be_eq_obj *eqo = dev;
2039 struct be_adapter *adapter = eqo->adapter;
2042 /* IRQ is not expected when NAPI is scheduled as the EQ
2043 * will not be armed.
2044 * But, this can happen on Lancer INTx where it takes
2045 * a while to de-assert INTx or in BE2 where occasionaly
2046 * an interrupt may be raised even when EQ is unarmed.
2047 * If NAPI is already scheduled, then counting & notifying
2048 * events will orphan them.
2050 if (napi_schedule_prep(&eqo->napi)) {
2051 num_evts = events_get(eqo);
2052 __napi_schedule(&eqo->napi);
2054 eqo->spurious_intr = 0;
2056 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2058 /* Return IRQ_HANDLED only for the the first spurious intr
2059 * after a valid intr to stop the kernel from branding
2060 * this irq as a bad one!
2062 if (num_evts || eqo->spurious_intr++ == 0)
2068 static irqreturn_t be_msix(int irq, void *dev)
2070 struct be_eq_obj *eqo = dev;
2072 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2073 napi_schedule(&eqo->napi);
2077 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2079 return (rxcp->tcpf && !rxcp->err) ? true : false;
2082 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2085 struct be_adapter *adapter = rxo->adapter;
2086 struct be_queue_info *rx_cq = &rxo->cq;
2087 struct be_rx_compl_info *rxcp;
2090 for (work_done = 0; work_done < budget; work_done++) {
2091 rxcp = be_rx_compl_get(rxo);
2095 /* Is it a flush compl that has no data */
2096 if (unlikely(rxcp->num_rcvd == 0))
2099 /* Discard compl with partial DMA Lancer B0 */
2100 if (unlikely(!rxcp->pkt_size)) {
2101 be_rx_compl_discard(rxo, rxcp);
2105 /* On BE drop pkts that arrive due to imperfect filtering in
2106 * promiscuous mode on some skews
2108 if (unlikely(rxcp->port != adapter->port_num &&
2109 !lancer_chip(adapter))) {
2110 be_rx_compl_discard(rxo, rxcp);
2115 be_rx_compl_process_gro(rxo, napi, rxcp);
2117 be_rx_compl_process(rxo, rxcp);
2119 be_rx_stats_update(rxo, rxcp);
2123 be_cq_notify(adapter, rx_cq->id, true, work_done);
2125 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2126 be_post_rx_frags(rxo, GFP_ATOMIC);
2132 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2133 int budget, int idx)
2135 struct be_eth_tx_compl *txcp;
2136 int num_wrbs = 0, work_done;
2138 for (work_done = 0; work_done < budget; work_done++) {
2139 txcp = be_tx_compl_get(&txo->cq);
2142 num_wrbs += be_tx_compl_process(adapter, txo,
2143 AMAP_GET_BITS(struct amap_eth_tx_compl,
2148 be_cq_notify(adapter, txo->cq.id, true, work_done);
2149 atomic_sub(num_wrbs, &txo->q.used);
2151 /* As Tx wrbs have been freed up, wake up netdev queue
2152 * if it was stopped due to lack of tx wrbs. */
2153 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2154 atomic_read(&txo->q.used) < txo->q.len / 2) {
2155 netif_wake_subqueue(adapter->netdev, idx);
2158 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2159 tx_stats(txo)->tx_compl += work_done;
2160 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2162 return (work_done < budget); /* Done */
2165 int be_poll(struct napi_struct *napi, int budget)
2167 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2168 struct be_adapter *adapter = eqo->adapter;
2169 int max_work = 0, work, i, num_evts;
2172 num_evts = events_get(eqo);
2174 /* Process all TXQs serviced by this EQ */
2175 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2176 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2182 /* This loop will iterate twice for EQ0 in which
2183 * completions of the last RXQ (default one) are also processed
2184 * For other EQs the loop iterates only once
2186 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2187 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2188 max_work = max(work, max_work);
2191 if (is_mcc_eqo(eqo))
2192 be_process_mcc(adapter);
2194 if (max_work < budget) {
2195 napi_complete(napi);
2196 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2198 /* As we'll continue in polling mode, count and clear events */
2199 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2204 void be_detect_error(struct be_adapter *adapter)
2206 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2207 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2210 if (be_hw_error(adapter))
2213 if (lancer_chip(adapter)) {
2214 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2215 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2216 sliport_err1 = ioread32(adapter->db +
2217 SLIPORT_ERROR1_OFFSET);
2218 sliport_err2 = ioread32(adapter->db +
2219 SLIPORT_ERROR2_OFFSET);
2222 pci_read_config_dword(adapter->pdev,
2223 PCICFG_UE_STATUS_LOW, &ue_lo);
2224 pci_read_config_dword(adapter->pdev,
2225 PCICFG_UE_STATUS_HIGH, &ue_hi);
2226 pci_read_config_dword(adapter->pdev,
2227 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2228 pci_read_config_dword(adapter->pdev,
2229 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2231 ue_lo = (ue_lo & ~ue_lo_mask);
2232 ue_hi = (ue_hi & ~ue_hi_mask);
2235 /* On certain platforms BE hardware can indicate spurious UEs.
2236 * Allow the h/w to stop working completely in case of a real UE.
2237 * Hence not setting the hw_error for UE detection.
2239 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2240 adapter->hw_error = true;
2241 dev_err(&adapter->pdev->dev,
2242 "Error detected in the card\n");
2245 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2246 dev_err(&adapter->pdev->dev,
2247 "ERR: sliport status 0x%x\n", sliport_status);
2248 dev_err(&adapter->pdev->dev,
2249 "ERR: sliport error1 0x%x\n", sliport_err1);
2250 dev_err(&adapter->pdev->dev,
2251 "ERR: sliport error2 0x%x\n", sliport_err2);
2255 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2257 dev_err(&adapter->pdev->dev,
2258 "UE: %s bit set\n", ue_status_low_desc[i]);
2263 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2265 dev_err(&adapter->pdev->dev,
2266 "UE: %s bit set\n", ue_status_hi_desc[i]);
2272 static void be_msix_disable(struct be_adapter *adapter)
2274 if (msix_enabled(adapter)) {
2275 pci_disable_msix(adapter->pdev);
2276 adapter->num_msix_vec = 0;
2280 static uint be_num_rss_want(struct be_adapter *adapter)
2284 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2285 (lancer_chip(adapter) ||
2286 (!sriov_want(adapter) && be_physfn(adapter)))) {
2287 num = adapter->max_rss_queues;
2288 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2293 static void be_msix_enable(struct be_adapter *adapter)
2295 #define BE_MIN_MSIX_VECTORS 1
2296 int i, status, num_vec, num_roce_vec = 0;
2297 struct device *dev = &adapter->pdev->dev;
2299 /* If RSS queues are not used, need a vec for default RX Q */
2300 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2301 if (be_roce_supported(adapter)) {
2302 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2303 (num_online_cpus() + 1));
2304 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2305 num_vec += num_roce_vec;
2306 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2308 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2310 for (i = 0; i < num_vec; i++)
2311 adapter->msix_entries[i].entry = i;
2313 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2316 } else if (status >= BE_MIN_MSIX_VECTORS) {
2318 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2323 dev_warn(dev, "MSIx enable failed\n");
2326 if (be_roce_supported(adapter)) {
2327 if (num_vec > num_roce_vec) {
2328 adapter->num_msix_vec = num_vec - num_roce_vec;
2329 adapter->num_msix_roce_vec =
2330 num_vec - adapter->num_msix_vec;
2332 adapter->num_msix_vec = num_vec;
2333 adapter->num_msix_roce_vec = 0;
2336 adapter->num_msix_vec = num_vec;
2337 dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
2341 static inline int be_msix_vec_get(struct be_adapter *adapter,
2342 struct be_eq_obj *eqo)
2344 return adapter->msix_entries[eqo->idx].vector;
2347 static int be_msix_register(struct be_adapter *adapter)
2349 struct net_device *netdev = adapter->netdev;
2350 struct be_eq_obj *eqo;
2353 for_all_evt_queues(adapter, eqo, i) {
2354 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2355 vec = be_msix_vec_get(adapter, eqo);
2356 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2363 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2364 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2365 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2367 be_msix_disable(adapter);
2371 static int be_irq_register(struct be_adapter *adapter)
2373 struct net_device *netdev = adapter->netdev;
2376 if (msix_enabled(adapter)) {
2377 status = be_msix_register(adapter);
2380 /* INTx is not supported for VF */
2381 if (!be_physfn(adapter))
2385 /* INTx: only the first EQ is used */
2386 netdev->irq = adapter->pdev->irq;
2387 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2388 &adapter->eq_obj[0]);
2390 dev_err(&adapter->pdev->dev,
2391 "INTx request IRQ failed - err %d\n", status);
2395 adapter->isr_registered = true;
2399 static void be_irq_unregister(struct be_adapter *adapter)
2401 struct net_device *netdev = adapter->netdev;
2402 struct be_eq_obj *eqo;
2405 if (!adapter->isr_registered)
2409 if (!msix_enabled(adapter)) {
2410 free_irq(netdev->irq, &adapter->eq_obj[0]);
2415 for_all_evt_queues(adapter, eqo, i)
2416 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2419 adapter->isr_registered = false;
2422 static void be_rx_qs_destroy(struct be_adapter *adapter)
2424 struct be_queue_info *q;
2425 struct be_rx_obj *rxo;
2428 for_all_rx_queues(adapter, rxo, i) {
2431 be_cmd_rxq_destroy(adapter, q);
2432 /* After the rxq is invalidated, wait for a grace time
2433 * of 1ms for all dma to end and the flush compl to
2437 be_rx_cq_clean(rxo);
2439 be_queue_free(adapter, q);
2443 static int be_close(struct net_device *netdev)
2445 struct be_adapter *adapter = netdev_priv(netdev);
2446 struct be_eq_obj *eqo;
2449 be_roce_dev_close(adapter);
2451 for_all_evt_queues(adapter, eqo, i)
2452 napi_disable(&eqo->napi);
2454 be_async_mcc_disable(adapter);
2456 /* Wait for all pending tx completions to arrive so that
2457 * all tx skbs are freed.
2459 be_tx_compl_clean(adapter);
2461 be_rx_qs_destroy(adapter);
2463 for_all_evt_queues(adapter, eqo, i) {
2464 if (msix_enabled(adapter))
2465 synchronize_irq(be_msix_vec_get(adapter, eqo));
2467 synchronize_irq(netdev->irq);
2471 be_irq_unregister(adapter);
2476 static int be_rx_qs_create(struct be_adapter *adapter)
2478 struct be_rx_obj *rxo;
2482 for_all_rx_queues(adapter, rxo, i) {
2483 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2484 sizeof(struct be_eth_rx_d));
2489 /* The FW would like the default RXQ to be created first */
2490 rxo = default_rxo(adapter);
2491 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2492 adapter->if_handle, false, &rxo->rss_id);
2496 for_all_rss_queues(adapter, rxo, i) {
2497 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2498 rx_frag_size, adapter->if_handle,
2499 true, &rxo->rss_id);
2504 if (be_multi_rxq(adapter)) {
2505 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2506 for_all_rss_queues(adapter, rxo, i) {
2509 rsstable[j + i] = rxo->rss_id;
2512 rc = be_cmd_rss_config(adapter, rsstable, 128);
2517 /* First time posting */
2518 for_all_rx_queues(adapter, rxo, i)
2519 be_post_rx_frags(rxo, GFP_KERNEL);
2523 static int be_open(struct net_device *netdev)
2525 struct be_adapter *adapter = netdev_priv(netdev);
2526 struct be_eq_obj *eqo;
2527 struct be_rx_obj *rxo;
2528 struct be_tx_obj *txo;
2532 status = be_rx_qs_create(adapter);
2536 be_irq_register(adapter);
2538 for_all_rx_queues(adapter, rxo, i)
2539 be_cq_notify(adapter, rxo->cq.id, true, 0);
2541 for_all_tx_queues(adapter, txo, i)
2542 be_cq_notify(adapter, txo->cq.id, true, 0);
2544 be_async_mcc_enable(adapter);
2546 for_all_evt_queues(adapter, eqo, i) {
2547 napi_enable(&eqo->napi);
2548 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2551 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2553 be_link_status_update(adapter, link_status);
2555 be_roce_dev_open(adapter);
2558 be_close(adapter->netdev);
2562 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2564 struct be_dma_mem cmd;
2568 memset(mac, 0, ETH_ALEN);
2570 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2571 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2572 GFP_KERNEL | __GFP_ZERO);
2577 status = pci_write_config_dword(adapter->pdev,
2578 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2580 dev_err(&adapter->pdev->dev,
2581 "Could not enable Wake-on-lan\n");
2582 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2586 status = be_cmd_enable_magic_wol(adapter,
2587 adapter->netdev->dev_addr, &cmd);
2588 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2589 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2591 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2592 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2593 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2596 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2601 * Generate a seed MAC address from the PF MAC Address using jhash.
2602 * MAC Address for VFs are assigned incrementally starting from the seed.
2603 * These addresses are programmed in the ASIC by the PF and the VF driver
2604 * queries for the MAC address during its probe.
2606 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2611 struct be_vf_cfg *vf_cfg;
2613 be_vf_eth_addr_generate(adapter, mac);
2615 for_all_vfs(adapter, vf_cfg, vf) {
2616 if (lancer_chip(adapter)) {
2617 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2619 status = be_cmd_pmac_add(adapter, mac,
2621 &vf_cfg->pmac_id, vf + 1);
2625 dev_err(&adapter->pdev->dev,
2626 "Mac address assignment failed for VF %d\n", vf);
2628 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2635 static int be_vfs_mac_query(struct be_adapter *adapter)
2639 struct be_vf_cfg *vf_cfg;
2642 for_all_vfs(adapter, vf_cfg, vf) {
2643 be_cmd_get_mac_from_list(adapter, mac, &active,
2644 &vf_cfg->pmac_id, 0);
2646 status = be_cmd_mac_addr_query(adapter, mac, false,
2647 vf_cfg->if_handle, 0);
2650 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2655 static void be_vf_clear(struct be_adapter *adapter)
2657 struct be_vf_cfg *vf_cfg;
2660 if (be_find_vfs(adapter, ASSIGNED)) {
2661 dev_warn(&adapter->pdev->dev,
2662 "VFs are assigned to VMs: not disabling VFs\n");
2666 for_all_vfs(adapter, vf_cfg, vf) {
2667 if (lancer_chip(adapter))
2668 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2670 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2671 vf_cfg->pmac_id, vf + 1);
2673 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2675 pci_disable_sriov(adapter->pdev);
2677 kfree(adapter->vf_cfg);
2678 adapter->num_vfs = 0;
2681 static int be_clear(struct be_adapter *adapter)
2685 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2686 cancel_delayed_work_sync(&adapter->work);
2687 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2690 if (sriov_enabled(adapter))
2691 be_vf_clear(adapter);
2693 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2694 be_cmd_pmac_del(adapter, adapter->if_handle,
2695 adapter->pmac_id[i], 0);
2697 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2699 be_mcc_queues_destroy(adapter);
2700 be_rx_cqs_destroy(adapter);
2701 be_tx_queues_destroy(adapter);
2702 be_evt_queues_destroy(adapter);
2704 kfree(adapter->pmac_id);
2705 adapter->pmac_id = NULL;
2707 be_msix_disable(adapter);
2711 static int be_vfs_if_create(struct be_adapter *adapter)
2713 struct be_vf_cfg *vf_cfg;
2714 u32 cap_flags, en_flags, vf;
2717 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2718 BE_IF_FLAGS_MULTICAST;
2720 for_all_vfs(adapter, vf_cfg, vf) {
2721 if (!BE3_chip(adapter))
2722 be_cmd_get_profile_config(adapter, &cap_flags, vf + 1);
2724 /* If a FW profile exists, then cap_flags are updated */
2725 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2726 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2727 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2728 &vf_cfg->if_handle, vf + 1);
2736 static int be_vf_setup_init(struct be_adapter *adapter)
2738 struct be_vf_cfg *vf_cfg;
2741 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2743 if (!adapter->vf_cfg)
2746 for_all_vfs(adapter, vf_cfg, vf) {
2747 vf_cfg->if_handle = -1;
2748 vf_cfg->pmac_id = -1;
2753 static int be_vf_setup(struct be_adapter *adapter)
2755 struct be_vf_cfg *vf_cfg;
2756 u16 def_vlan, lnk_speed;
2757 int status, old_vfs, vf;
2758 struct device *dev = &adapter->pdev->dev;
2760 old_vfs = be_find_vfs(adapter, ENABLED);
2762 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2763 if (old_vfs != num_vfs)
2764 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2765 adapter->num_vfs = old_vfs;
2767 if (num_vfs > adapter->dev_num_vfs)
2768 dev_info(dev, "Device supports %d VFs and not %d\n",
2769 adapter->dev_num_vfs, num_vfs);
2770 adapter->num_vfs = min_t(u16, num_vfs, adapter->dev_num_vfs);
2772 status = pci_enable_sriov(adapter->pdev, num_vfs);
2774 dev_err(dev, "SRIOV enable failed\n");
2775 adapter->num_vfs = 0;
2780 status = be_vf_setup_init(adapter);
2785 for_all_vfs(adapter, vf_cfg, vf) {
2786 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2791 status = be_vfs_if_create(adapter);
2797 status = be_vfs_mac_query(adapter);
2801 status = be_vf_eth_addr_config(adapter);
2806 for_all_vfs(adapter, vf_cfg, vf) {
2807 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2808 * Allow full available bandwidth
2810 if (BE3_chip(adapter) && !old_vfs)
2811 be_cmd_set_qos(adapter, 1000, vf+1);
2813 status = be_cmd_link_status_query(adapter, &lnk_speed,
2816 vf_cfg->tx_rate = lnk_speed;
2818 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2819 vf + 1, vf_cfg->if_handle);
2822 vf_cfg->def_vid = def_vlan;
2824 be_cmd_enable_vf(adapter, vf + 1);
2828 dev_err(dev, "VF setup failed\n");
2829 be_vf_clear(adapter);
2833 static void be_setup_init(struct be_adapter *adapter)
2835 adapter->vlan_prio_bmap = 0xff;
2836 adapter->phy.link_speed = -1;
2837 adapter->if_handle = -1;
2838 adapter->be3_native = false;
2839 adapter->promiscuous = false;
2840 if (be_physfn(adapter))
2841 adapter->cmd_privileges = MAX_PRIVILEGES;
2843 adapter->cmd_privileges = MIN_PRIVILEGES;
2846 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2847 bool *active_mac, u32 *pmac_id)
2851 if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2852 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2853 if (!lancer_chip(adapter) && !be_physfn(adapter))
2856 *active_mac = false;
2861 if (lancer_chip(adapter)) {
2862 status = be_cmd_get_mac_from_list(adapter, mac,
2863 active_mac, pmac_id, 0);
2865 status = be_cmd_mac_addr_query(adapter, mac, false,
2866 if_handle, *pmac_id);
2868 } else if (be_physfn(adapter)) {
2869 /* For BE3, for PF get permanent MAC */
2870 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
2871 *active_mac = false;
2873 /* For BE3, for VF get soft MAC assigned by PF*/
2874 status = be_cmd_mac_addr_query(adapter, mac, false,
2881 static void be_get_resources(struct be_adapter *adapter)
2885 bool profile_present = false;
2887 if (!BEx_chip(adapter)) {
2888 status = be_cmd_get_func_config(adapter);
2890 profile_present = true;
2893 if (profile_present) {
2894 /* Sanity fixes for Lancer */
2895 adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
2897 adapter->max_vlans = min_t(u16, adapter->max_vlans,
2898 BE_NUM_VLANS_SUPPORTED);
2899 adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
2901 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
2903 adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
2905 adapter->max_event_queues = min_t(u16,
2906 adapter->max_event_queues,
2909 if (adapter->max_rss_queues &&
2910 adapter->max_rss_queues == adapter->max_rx_queues)
2911 adapter->max_rss_queues -= 1;
2913 if (adapter->max_event_queues < adapter->max_rss_queues)
2914 adapter->max_rss_queues = adapter->max_event_queues;
2917 if (be_physfn(adapter))
2918 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
2920 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
2922 if (adapter->function_mode & FLEX10_MODE)
2923 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
2925 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2927 adapter->max_mcast_mac = BE_MAX_MC;
2928 adapter->max_tx_queues = MAX_TX_QS;
2929 adapter->max_rss_queues = (adapter->be3_native) ?
2930 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2931 adapter->max_event_queues = BE3_MAX_RSS_QS;
2933 adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
2934 BE_IF_FLAGS_BROADCAST |
2935 BE_IF_FLAGS_MULTICAST |
2936 BE_IF_FLAGS_PASS_L3L4_ERRORS |
2937 BE_IF_FLAGS_MCAST_PROMISCUOUS |
2938 BE_IF_FLAGS_VLAN_PROMISCUOUS |
2939 BE_IF_FLAGS_PROMISCUOUS;
2941 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
2942 adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
2945 pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2947 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2949 if (BE3_chip(adapter))
2950 dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
2951 adapter->dev_num_vfs = dev_num_vfs;
2955 /* Routine to query per function resource limits */
2956 static int be_get_config(struct be_adapter *adapter)
2960 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
2961 &adapter->function_mode,
2962 &adapter->function_caps,
2963 &adapter->asic_rev);
2967 be_get_resources(adapter);
2969 /* primary mac needs 1 pmac entry */
2970 adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
2971 sizeof(u32), GFP_KERNEL);
2972 if (!adapter->pmac_id) {
2981 static int be_setup(struct be_adapter *adapter)
2983 struct device *dev = &adapter->pdev->dev;
2990 be_setup_init(adapter);
2992 if (!lancer_chip(adapter))
2993 be_cmd_req_native_mode(adapter);
2995 status = be_get_config(adapter);
2999 be_msix_enable(adapter);
3001 status = be_evt_queues_create(adapter);
3005 status = be_tx_cqs_create(adapter);
3009 status = be_rx_cqs_create(adapter);
3013 status = be_mcc_queues_create(adapter);
3017 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3018 /* In UMC mode FW does not return right privileges.
3019 * Override with correct privilege equivalent to PF.
3021 if (be_is_mc(adapter))
3022 adapter->cmd_privileges = MAX_PRIVILEGES;
3024 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3025 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3027 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3028 en_flags |= BE_IF_FLAGS_RSS;
3030 en_flags = en_flags & adapter->if_cap_flags;
3032 status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
3033 &adapter->if_handle, 0);
3037 memset(mac, 0, ETH_ALEN);
3039 status = be_get_mac_addr(adapter, mac, adapter->if_handle,
3040 &active_mac, &adapter->pmac_id[0]);
3045 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3046 &adapter->pmac_id[0], 0);
3051 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3052 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3053 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3056 status = be_tx_qs_create(adapter);
3060 be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
3062 if (adapter->vlans_added)
3063 be_vid_config(adapter);
3065 be_set_rx_mode(adapter->netdev);
3067 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3069 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3070 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3073 if (be_physfn(adapter) && num_vfs) {
3074 if (adapter->dev_num_vfs)
3075 be_vf_setup(adapter);
3077 dev_warn(dev, "device doesn't support SRIOV\n");
3080 status = be_cmd_get_phy_info(adapter);
3081 if (!status && be_pause_supported(adapter))
3082 adapter->phy.fc_autoneg = 1;
3084 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3085 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3092 #ifdef CONFIG_NET_POLL_CONTROLLER
3093 static void be_netpoll(struct net_device *netdev)
3095 struct be_adapter *adapter = netdev_priv(netdev);
3096 struct be_eq_obj *eqo;
3099 for_all_evt_queues(adapter, eqo, i) {
3100 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3101 napi_schedule(&eqo->napi);
3108 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3109 char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3111 static bool be_flash_redboot(struct be_adapter *adapter,
3112 const u8 *p, u32 img_start, int image_size,
3119 crc_offset = hdr_size + img_start + image_size - 4;
3123 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3126 dev_err(&adapter->pdev->dev,
3127 "could not get crc from flash, not flashing redboot\n");
3131 /*update redboot only if crc does not match*/
3132 if (!memcmp(flashed_crc, p, 4))
3138 static bool phy_flashing_required(struct be_adapter *adapter)
3140 return (adapter->phy.phy_type == TN_8022 &&
3141 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3144 static bool is_comp_in_ufi(struct be_adapter *adapter,
3145 struct flash_section_info *fsec, int type)
3147 int i = 0, img_type = 0;
3148 struct flash_section_info_g2 *fsec_g2 = NULL;
3150 if (BE2_chip(adapter))
3151 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3153 for (i = 0; i < MAX_FLASH_COMP; i++) {
3155 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3157 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3159 if (img_type == type)
3166 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3168 const struct firmware *fw)
3170 struct flash_section_info *fsec = NULL;
3171 const u8 *p = fw->data;
3174 while (p < (fw->data + fw->size)) {
3175 fsec = (struct flash_section_info *)p;
3176 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3183 static int be_flash(struct be_adapter *adapter, const u8 *img,
3184 struct be_dma_mem *flash_cmd, int optype, int img_size)
3186 u32 total_bytes = 0, flash_op, num_bytes = 0;
3188 struct be_cmd_write_flashrom *req = flash_cmd->va;
3190 total_bytes = img_size;
3191 while (total_bytes) {
3192 num_bytes = min_t(u32, 32*1024, total_bytes);
3194 total_bytes -= num_bytes;
3197 if (optype == OPTYPE_PHY_FW)
3198 flash_op = FLASHROM_OPER_PHY_FLASH;
3200 flash_op = FLASHROM_OPER_FLASH;
3202 if (optype == OPTYPE_PHY_FW)
3203 flash_op = FLASHROM_OPER_PHY_SAVE;
3205 flash_op = FLASHROM_OPER_SAVE;
3208 memcpy(req->data_buf, img, num_bytes);
3210 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3211 flash_op, num_bytes);
3213 if (status == ILLEGAL_IOCTL_REQ &&
3214 optype == OPTYPE_PHY_FW)
3216 dev_err(&adapter->pdev->dev,
3217 "cmd to write to flash rom failed.\n");
3224 /* For BE2, BE3 and BE3-R */
3225 static int be_flash_BEx(struct be_adapter *adapter,
3226 const struct firmware *fw,
3227 struct be_dma_mem *flash_cmd,
3231 int status = 0, i, filehdr_size = 0;
3232 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3233 const u8 *p = fw->data;
3234 const struct flash_comp *pflashcomp;
3235 int num_comp, redboot;
3236 struct flash_section_info *fsec = NULL;
3238 struct flash_comp gen3_flash_types[] = {
3239 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3240 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3241 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3242 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3243 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3244 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3245 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3246 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3247 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3248 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3249 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3250 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3251 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3252 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3253 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3254 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3255 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3256 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3257 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3258 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3261 struct flash_comp gen2_flash_types[] = {
3262 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3263 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3264 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3265 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3266 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3267 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3268 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3269 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3270 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3271 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3272 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3273 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3274 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3275 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3276 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3277 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3280 if (BE3_chip(adapter)) {
3281 pflashcomp = gen3_flash_types;
3282 filehdr_size = sizeof(struct flash_file_hdr_g3);
3283 num_comp = ARRAY_SIZE(gen3_flash_types);
3285 pflashcomp = gen2_flash_types;
3286 filehdr_size = sizeof(struct flash_file_hdr_g2);
3287 num_comp = ARRAY_SIZE(gen2_flash_types);
3290 /* Get flash section info*/
3291 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3293 dev_err(&adapter->pdev->dev,
3294 "Invalid Cookie. UFI corrupted ?\n");
3297 for (i = 0; i < num_comp; i++) {
3298 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3301 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3302 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3305 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3306 !phy_flashing_required(adapter))
3309 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3310 redboot = be_flash_redboot(adapter, fw->data,
3311 pflashcomp[i].offset, pflashcomp[i].size,
3312 filehdr_size + img_hdrs_size);
3318 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3319 if (p + pflashcomp[i].size > fw->data + fw->size)
3322 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3323 pflashcomp[i].size);
3325 dev_err(&adapter->pdev->dev,
3326 "Flashing section type %d failed.\n",
3327 pflashcomp[i].img_type);
3334 static int be_flash_skyhawk(struct be_adapter *adapter,
3335 const struct firmware *fw,
3336 struct be_dma_mem *flash_cmd, int num_of_images)
3338 int status = 0, i, filehdr_size = 0;
3339 int img_offset, img_size, img_optype, redboot;
3340 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3341 const u8 *p = fw->data;
3342 struct flash_section_info *fsec = NULL;
3344 filehdr_size = sizeof(struct flash_file_hdr_g3);
3345 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3347 dev_err(&adapter->pdev->dev,
3348 "Invalid Cookie. UFI corrupted ?\n");
3352 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3353 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3354 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3356 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3357 case IMAGE_FIRMWARE_iSCSI:
3358 img_optype = OPTYPE_ISCSI_ACTIVE;
3360 case IMAGE_BOOT_CODE:
3361 img_optype = OPTYPE_REDBOOT;
3363 case IMAGE_OPTION_ROM_ISCSI:
3364 img_optype = OPTYPE_BIOS;
3366 case IMAGE_OPTION_ROM_PXE:
3367 img_optype = OPTYPE_PXE_BIOS;
3369 case IMAGE_OPTION_ROM_FCoE:
3370 img_optype = OPTYPE_FCOE_BIOS;
3372 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3373 img_optype = OPTYPE_ISCSI_BACKUP;
3376 img_optype = OPTYPE_NCSI_FW;
3382 if (img_optype == OPTYPE_REDBOOT) {
3383 redboot = be_flash_redboot(adapter, fw->data,
3384 img_offset, img_size,
3385 filehdr_size + img_hdrs_size);
3391 p += filehdr_size + img_offset + img_hdrs_size;
3392 if (p + img_size > fw->data + fw->size)
3395 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3397 dev_err(&adapter->pdev->dev,
3398 "Flashing section type %d failed.\n",
3399 fsec->fsec_entry[i].type);
3406 static int lancer_wait_idle(struct be_adapter *adapter)
3408 #define SLIPORT_IDLE_TIMEOUT 30
3412 for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3413 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3414 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3420 if (i == SLIPORT_IDLE_TIMEOUT)
3426 static int lancer_fw_reset(struct be_adapter *adapter)
3430 status = lancer_wait_idle(adapter);
3434 iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3435 PHYSDEV_CONTROL_OFFSET);
3440 static int lancer_fw_download(struct be_adapter *adapter,
3441 const struct firmware *fw)
3443 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3444 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3445 struct be_dma_mem flash_cmd;
3446 const u8 *data_ptr = NULL;
3447 u8 *dest_image_ptr = NULL;
3448 size_t image_size = 0;
3450 u32 data_written = 0;
3456 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3457 dev_err(&adapter->pdev->dev,
3458 "FW Image not properly aligned. "
3459 "Length must be 4 byte aligned.\n");
3461 goto lancer_fw_exit;
3464 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3465 + LANCER_FW_DOWNLOAD_CHUNK;
3466 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3467 &flash_cmd.dma, GFP_KERNEL);
3468 if (!flash_cmd.va) {
3470 goto lancer_fw_exit;
3473 dest_image_ptr = flash_cmd.va +
3474 sizeof(struct lancer_cmd_req_write_object);
3475 image_size = fw->size;
3476 data_ptr = fw->data;
3478 while (image_size) {
3479 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3481 /* Copy the image chunk content. */
3482 memcpy(dest_image_ptr, data_ptr, chunk_size);
3484 status = lancer_cmd_write_object(adapter, &flash_cmd,
3486 LANCER_FW_DOWNLOAD_LOCATION,
3487 &data_written, &change_status,
3492 offset += data_written;
3493 data_ptr += data_written;
3494 image_size -= data_written;
3498 /* Commit the FW written */
3499 status = lancer_cmd_write_object(adapter, &flash_cmd,
3501 LANCER_FW_DOWNLOAD_LOCATION,
3502 &data_written, &change_status,
3506 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3509 dev_err(&adapter->pdev->dev,
3510 "Firmware load error. "
3511 "Status code: 0x%x Additional Status: 0x%x\n",
3512 status, add_status);
3513 goto lancer_fw_exit;
3516 if (change_status == LANCER_FW_RESET_NEEDED) {
3517 status = lancer_fw_reset(adapter);
3519 dev_err(&adapter->pdev->dev,
3520 "Adapter busy for FW reset.\n"
3521 "New FW will not be active.\n");
3522 goto lancer_fw_exit;
3524 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3525 dev_err(&adapter->pdev->dev,
3526 "System reboot required for new FW"
3530 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3537 #define UFI_TYPE3R 10
3539 static int be_get_ufi_type(struct be_adapter *adapter,
3540 struct flash_file_hdr_g3 *fhdr)
3543 goto be_get_ufi_exit;
3545 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3547 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3548 if (fhdr->asic_type_rev == 0x10)
3552 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3556 dev_err(&adapter->pdev->dev,
3557 "UFI and Interface are not compatible for flashing\n");
3561 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3563 struct flash_file_hdr_g3 *fhdr3;
3564 struct image_hdr *img_hdr_ptr = NULL;
3565 struct be_dma_mem flash_cmd;
3567 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3569 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3570 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3571 &flash_cmd.dma, GFP_KERNEL);
3572 if (!flash_cmd.va) {
3578 fhdr3 = (struct flash_file_hdr_g3 *)p;
3580 ufi_type = be_get_ufi_type(adapter, fhdr3);
3582 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3583 for (i = 0; i < num_imgs; i++) {
3584 img_hdr_ptr = (struct image_hdr *)(fw->data +
3585 (sizeof(struct flash_file_hdr_g3) +
3586 i * sizeof(struct image_hdr)));
3587 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3590 status = be_flash_skyhawk(adapter, fw,
3591 &flash_cmd, num_imgs);
3594 status = be_flash_BEx(adapter, fw, &flash_cmd,
3598 /* Do not flash this ufi on BE3-R cards */
3599 if (adapter->asic_rev < 0x10)
3600 status = be_flash_BEx(adapter, fw,
3605 dev_err(&adapter->pdev->dev,
3606 "Can't load BE3 UFI on BE3R\n");
3612 if (ufi_type == UFI_TYPE2)
3613 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3614 else if (ufi_type == -1)
3617 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3620 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3624 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3630 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3632 const struct firmware *fw;
3635 if (!netif_running(adapter->netdev)) {
3636 dev_err(&adapter->pdev->dev,
3637 "Firmware load not allowed (interface is down)\n");
3641 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3645 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3647 if (lancer_chip(adapter))
3648 status = lancer_fw_download(adapter, fw);
3650 status = be_fw_download(adapter, fw);
3653 release_firmware(fw);
3657 static const struct net_device_ops be_netdev_ops = {
3658 .ndo_open = be_open,
3659 .ndo_stop = be_close,
3660 .ndo_start_xmit = be_xmit,
3661 .ndo_set_rx_mode = be_set_rx_mode,
3662 .ndo_set_mac_address = be_mac_addr_set,
3663 .ndo_change_mtu = be_change_mtu,
3664 .ndo_get_stats64 = be_get_stats64,
3665 .ndo_validate_addr = eth_validate_addr,
3666 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3667 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3668 .ndo_set_vf_mac = be_set_vf_mac,
3669 .ndo_set_vf_vlan = be_set_vf_vlan,
3670 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3671 .ndo_get_vf_config = be_get_vf_config,
3672 #ifdef CONFIG_NET_POLL_CONTROLLER
3673 .ndo_poll_controller = be_netpoll,
3677 static void be_netdev_init(struct net_device *netdev)
3679 struct be_adapter *adapter = netdev_priv(netdev);
3680 struct be_eq_obj *eqo;
3683 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3684 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3685 NETIF_F_HW_VLAN_CTAG_TX;
3686 if (be_multi_rxq(adapter))
3687 netdev->hw_features |= NETIF_F_RXHASH;
3689 netdev->features |= netdev->hw_features |
3690 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3692 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3693 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3695 netdev->priv_flags |= IFF_UNICAST_FLT;
3697 netdev->flags |= IFF_MULTICAST;
3699 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3701 netdev->netdev_ops = &be_netdev_ops;
3703 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3705 for_all_evt_queues(adapter, eqo, i)
3706 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3709 static void be_unmap_pci_bars(struct be_adapter *adapter)
3712 pci_iounmap(adapter->pdev, adapter->csr);
3714 pci_iounmap(adapter->pdev, adapter->db);
3717 static int db_bar(struct be_adapter *adapter)
3719 if (lancer_chip(adapter) || !be_physfn(adapter))
3725 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3727 if (skyhawk_chip(adapter)) {
3728 adapter->roce_db.size = 4096;
3729 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3731 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3737 static int be_map_pci_bars(struct be_adapter *adapter)
3742 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3743 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3744 SLI_INTF_IF_TYPE_SHIFT;
3746 if (BEx_chip(adapter) && be_physfn(adapter)) {
3747 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3748 if (adapter->csr == NULL)
3752 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3757 be_roce_map_pci_bars(adapter);
3761 be_unmap_pci_bars(adapter);
3765 static void be_ctrl_cleanup(struct be_adapter *adapter)
3767 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3769 be_unmap_pci_bars(adapter);
3772 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3775 mem = &adapter->rx_filter;
3777 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3781 static int be_ctrl_init(struct be_adapter *adapter)
3783 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3784 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3785 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3789 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3790 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3791 SLI_INTF_FAMILY_SHIFT;
3792 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3794 status = be_map_pci_bars(adapter);
3798 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3799 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3800 mbox_mem_alloc->size,
3801 &mbox_mem_alloc->dma,
3803 if (!mbox_mem_alloc->va) {
3805 goto unmap_pci_bars;
3807 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3808 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3809 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3810 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3812 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3813 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3815 GFP_KERNEL | __GFP_ZERO);
3816 if (rx_filter->va == NULL) {
3821 mutex_init(&adapter->mbox_lock);
3822 spin_lock_init(&adapter->mcc_lock);
3823 spin_lock_init(&adapter->mcc_cq_lock);
3825 init_completion(&adapter->flash_compl);
3826 pci_save_state(adapter->pdev);
3830 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3831 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3834 be_unmap_pci_bars(adapter);
3840 static void be_stats_cleanup(struct be_adapter *adapter)
3842 struct be_dma_mem *cmd = &adapter->stats_cmd;
3845 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3849 static int be_stats_init(struct be_adapter *adapter)
3851 struct be_dma_mem *cmd = &adapter->stats_cmd;
3853 if (lancer_chip(adapter))
3854 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3855 else if (BE2_chip(adapter))
3856 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3858 /* BE3 and Skyhawk */
3859 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3861 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3862 GFP_KERNEL | __GFP_ZERO);
3863 if (cmd->va == NULL)
3868 static void be_remove(struct pci_dev *pdev)
3870 struct be_adapter *adapter = pci_get_drvdata(pdev);
3875 be_roce_dev_remove(adapter);
3876 be_intr_set(adapter, false);
3878 cancel_delayed_work_sync(&adapter->func_recovery_work);
3880 unregister_netdev(adapter->netdev);
3884 /* tell fw we're done with firing cmds */
3885 be_cmd_fw_clean(adapter);
3887 be_stats_cleanup(adapter);
3889 be_ctrl_cleanup(adapter);
3891 pci_disable_pcie_error_reporting(pdev);
3893 pci_set_drvdata(pdev, NULL);
3894 pci_release_regions(pdev);
3895 pci_disable_device(pdev);
3897 free_netdev(adapter->netdev);
3900 bool be_is_wol_supported(struct be_adapter *adapter)
3902 return ((adapter->wol_cap & BE_WOL_CAP) &&
3903 !be_is_wol_excluded(adapter)) ? true : false;
3906 u32 be_get_fw_log_level(struct be_adapter *adapter)
3908 struct be_dma_mem extfat_cmd;
3909 struct be_fat_conf_params *cfgs;
3914 if (lancer_chip(adapter))
3917 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3918 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3919 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3922 if (!extfat_cmd.va) {
3923 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3928 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3930 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3931 sizeof(struct be_cmd_resp_hdr));
3932 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
3933 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3934 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3937 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3943 static int be_get_initial_config(struct be_adapter *adapter)
3948 status = be_cmd_get_cntl_attributes(adapter);
3952 status = be_cmd_get_acpi_wol_cap(adapter);
3954 /* in case of a failure to get wol capabillities
3955 * check the exclusion list to determine WOL capability */
3956 if (!be_is_wol_excluded(adapter))
3957 adapter->wol_cap |= BE_WOL_CAP;
3960 if (be_is_wol_supported(adapter))
3961 adapter->wol = true;
3963 /* Must be a power of 2 or else MODULO will BUG_ON */
3964 adapter->be_get_temp_freq = 64;
3966 level = be_get_fw_log_level(adapter);
3967 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3972 static int lancer_recover_func(struct be_adapter *adapter)
3976 status = lancer_test_and_set_rdy_state(adapter);
3980 if (netif_running(adapter->netdev))
3981 be_close(adapter->netdev);
3985 adapter->hw_error = false;
3986 adapter->fw_timeout = false;
3988 status = be_setup(adapter);
3992 if (netif_running(adapter->netdev)) {
3993 status = be_open(adapter->netdev);
3998 dev_err(&adapter->pdev->dev,
3999 "Adapter SLIPORT recovery succeeded\n");
4002 if (adapter->eeh_error)
4003 dev_err(&adapter->pdev->dev,
4004 "Adapter SLIPORT recovery failed\n");
4009 static void be_func_recovery_task(struct work_struct *work)
4011 struct be_adapter *adapter =
4012 container_of(work, struct be_adapter, func_recovery_work.work);
4015 be_detect_error(adapter);
4017 if (adapter->hw_error && lancer_chip(adapter)) {
4019 if (adapter->eeh_error)
4023 netif_device_detach(adapter->netdev);
4026 status = lancer_recover_func(adapter);
4029 netif_device_attach(adapter->netdev);
4033 schedule_delayed_work(&adapter->func_recovery_work,
4034 msecs_to_jiffies(1000));
4037 static void be_worker(struct work_struct *work)
4039 struct be_adapter *adapter =
4040 container_of(work, struct be_adapter, work.work);
4041 struct be_rx_obj *rxo;
4042 struct be_eq_obj *eqo;
4045 /* when interrupts are not yet enabled, just reap any pending
4046 * mcc completions */
4047 if (!netif_running(adapter->netdev)) {
4049 be_process_mcc(adapter);
4054 if (!adapter->stats_cmd_sent) {
4055 if (lancer_chip(adapter))
4056 lancer_cmd_get_pport_stats(adapter,
4057 &adapter->stats_cmd);
4059 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4062 if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4063 be_cmd_get_die_temperature(adapter);
4065 for_all_rx_queues(adapter, rxo, i) {
4066 if (rxo->rx_post_starved) {
4067 rxo->rx_post_starved = false;
4068 be_post_rx_frags(rxo, GFP_KERNEL);
4072 for_all_evt_queues(adapter, eqo, i)
4073 be_eqd_update(adapter, eqo);
4076 adapter->work_counter++;
4077 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4080 static bool be_reset_required(struct be_adapter *adapter)
4082 return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
4085 static char *mc_name(struct be_adapter *adapter)
4087 if (adapter->function_mode & FLEX10_MODE)
4089 else if (adapter->function_mode & VNIC_MODE)
4091 else if (adapter->function_mode & UMC_ENABLED)
4097 static inline char *func_name(struct be_adapter *adapter)
4099 return be_physfn(adapter) ? "PF" : "VF";
4102 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4105 struct be_adapter *adapter;
4106 struct net_device *netdev;
4109 status = pci_enable_device(pdev);
4113 status = pci_request_regions(pdev, DRV_NAME);
4116 pci_set_master(pdev);
4118 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4119 if (netdev == NULL) {
4123 adapter = netdev_priv(netdev);
4124 adapter->pdev = pdev;
4125 pci_set_drvdata(pdev, adapter);
4126 adapter->netdev = netdev;
4127 SET_NETDEV_DEV(netdev, &pdev->dev);
4129 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4131 netdev->features |= NETIF_F_HIGHDMA;
4133 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4135 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4140 status = pci_enable_pcie_error_reporting(pdev);
4142 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
4144 status = be_ctrl_init(adapter);
4148 /* sync up with fw's ready state */
4149 if (be_physfn(adapter)) {
4150 status = be_fw_wait_ready(adapter);
4155 /* tell fw we're ready to fire cmds */
4156 status = be_cmd_fw_init(adapter);
4160 if (be_reset_required(adapter)) {
4161 status = be_cmd_reset_function(adapter);
4166 /* Wait for interrupts to quiesce after an FLR */
4169 /* Allow interrupts for other ULPs running on NIC function */
4170 be_intr_set(adapter, true);
4172 status = be_stats_init(adapter);
4176 status = be_get_initial_config(adapter);
4180 INIT_DELAYED_WORK(&adapter->work, be_worker);
4181 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4182 adapter->rx_fc = adapter->tx_fc = true;
4184 status = be_setup(adapter);
4188 be_netdev_init(netdev);
4189 status = register_netdev(netdev);
4193 be_roce_dev_add(adapter);
4195 schedule_delayed_work(&adapter->func_recovery_work,
4196 msecs_to_jiffies(1000));
4198 be_cmd_query_port_name(adapter, &port_name);
4200 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4201 func_name(adapter), mc_name(adapter), port_name);
4208 be_stats_cleanup(adapter);
4210 be_ctrl_cleanup(adapter);
4212 free_netdev(netdev);
4213 pci_set_drvdata(pdev, NULL);
4215 pci_release_regions(pdev);
4217 pci_disable_device(pdev);
4219 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4223 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4225 struct be_adapter *adapter = pci_get_drvdata(pdev);
4226 struct net_device *netdev = adapter->netdev;
4229 be_setup_wol(adapter, true);
4231 cancel_delayed_work_sync(&adapter->func_recovery_work);
4233 netif_device_detach(netdev);
4234 if (netif_running(netdev)) {
4241 pci_save_state(pdev);
4242 pci_disable_device(pdev);
4243 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4247 static int be_resume(struct pci_dev *pdev)
4250 struct be_adapter *adapter = pci_get_drvdata(pdev);
4251 struct net_device *netdev = adapter->netdev;
4253 netif_device_detach(netdev);
4255 status = pci_enable_device(pdev);
4259 pci_set_power_state(pdev, 0);
4260 pci_restore_state(pdev);
4262 /* tell fw we're ready to fire cmds */
4263 status = be_cmd_fw_init(adapter);
4268 if (netif_running(netdev)) {
4274 schedule_delayed_work(&adapter->func_recovery_work,
4275 msecs_to_jiffies(1000));
4276 netif_device_attach(netdev);
4279 be_setup_wol(adapter, false);
4285 * An FLR will stop BE from DMAing any data.
4287 static void be_shutdown(struct pci_dev *pdev)
4289 struct be_adapter *adapter = pci_get_drvdata(pdev);
4294 cancel_delayed_work_sync(&adapter->work);
4295 cancel_delayed_work_sync(&adapter->func_recovery_work);
4297 netif_device_detach(adapter->netdev);
4299 be_cmd_reset_function(adapter);
4301 pci_disable_device(pdev);
4304 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4305 pci_channel_state_t state)
4307 struct be_adapter *adapter = pci_get_drvdata(pdev);
4308 struct net_device *netdev = adapter->netdev;
4310 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4312 adapter->eeh_error = true;
4314 cancel_delayed_work_sync(&adapter->func_recovery_work);
4317 netif_device_detach(netdev);
4320 if (netif_running(netdev)) {
4327 if (state == pci_channel_io_perm_failure)
4328 return PCI_ERS_RESULT_DISCONNECT;
4330 pci_disable_device(pdev);
4332 /* The error could cause the FW to trigger a flash debug dump.
4333 * Resetting the card while flash dump is in progress
4334 * can cause it not to recover; wait for it to finish.
4335 * Wait only for first function as it is needed only once per
4338 if (pdev->devfn == 0)
4341 return PCI_ERS_RESULT_NEED_RESET;
4344 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4346 struct be_adapter *adapter = pci_get_drvdata(pdev);
4349 dev_info(&adapter->pdev->dev, "EEH reset\n");
4350 be_clear_all_error(adapter);
4352 status = pci_enable_device(pdev);
4354 return PCI_ERS_RESULT_DISCONNECT;
4356 pci_set_master(pdev);
4357 pci_set_power_state(pdev, 0);
4358 pci_restore_state(pdev);
4360 /* Check if card is ok and fw is ready */
4361 dev_info(&adapter->pdev->dev,
4362 "Waiting for FW to be ready after EEH reset\n");
4363 status = be_fw_wait_ready(adapter);
4365 return PCI_ERS_RESULT_DISCONNECT;
4367 pci_cleanup_aer_uncorrect_error_status(pdev);
4368 return PCI_ERS_RESULT_RECOVERED;
4371 static void be_eeh_resume(struct pci_dev *pdev)
4374 struct be_adapter *adapter = pci_get_drvdata(pdev);
4375 struct net_device *netdev = adapter->netdev;
4377 dev_info(&adapter->pdev->dev, "EEH resume\n");
4379 pci_save_state(pdev);
4381 /* tell fw we're ready to fire cmds */
4382 status = be_cmd_fw_init(adapter);
4386 status = be_cmd_reset_function(adapter);
4390 status = be_setup(adapter);
4394 if (netif_running(netdev)) {
4395 status = be_open(netdev);
4400 schedule_delayed_work(&adapter->func_recovery_work,
4401 msecs_to_jiffies(1000));
4402 netif_device_attach(netdev);
4405 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4408 static const struct pci_error_handlers be_eeh_handlers = {
4409 .error_detected = be_eeh_err_detected,
4410 .slot_reset = be_eeh_reset,
4411 .resume = be_eeh_resume,
4414 static struct pci_driver be_driver = {
4416 .id_table = be_dev_ids,
4418 .remove = be_remove,
4419 .suspend = be_suspend,
4420 .resume = be_resume,
4421 .shutdown = be_shutdown,
4422 .err_handler = &be_eeh_handlers
4425 static int __init be_init_module(void)
4427 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4428 rx_frag_size != 2048) {
4429 printk(KERN_WARNING DRV_NAME
4430 " : Module param rx_frag_size must be 2048/4096/8192."
4432 rx_frag_size = 2048;
4435 return pci_register_driver(&be_driver);
4437 module_init(be_init_module);
4439 static void __exit be_exit_module(void)
4441 pci_unregister_driver(&be_driver);
4443 module_exit(be_exit_module);