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, u16 qid, u16 posted)
203 val |= qid & DB_TXULP_RING_ID_MASK;
204 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
207 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
210 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
211 bool arm, bool clear_int, u16 num_popped)
214 val |= qid & DB_EQ_RING_ID_MASK;
215 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
216 DB_EQ_RING_ID_EXT_MASK_SHIFT);
218 if (adapter->eeh_error)
222 val |= 1 << DB_EQ_REARM_SHIFT;
224 val |= 1 << DB_EQ_CLR_SHIFT;
225 val |= 1 << DB_EQ_EVNT_SHIFT;
226 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
227 iowrite32(val, adapter->db + DB_EQ_OFFSET);
230 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
233 val |= qid & DB_CQ_RING_ID_MASK;
234 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
235 DB_CQ_RING_ID_EXT_MASK_SHIFT);
237 if (adapter->eeh_error)
241 val |= 1 << DB_CQ_REARM_SHIFT;
242 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
243 iowrite32(val, adapter->db + DB_CQ_OFFSET);
246 static int be_mac_addr_set(struct net_device *netdev, void *p)
248 struct be_adapter *adapter = netdev_priv(netdev);
249 struct sockaddr *addr = p;
251 u8 current_mac[ETH_ALEN];
252 u32 pmac_id = adapter->pmac_id[0];
253 bool active_mac = true;
255 if (!is_valid_ether_addr(addr->sa_data))
256 return -EADDRNOTAVAIL;
258 /* For BE VF, MAC address is already activated by PF.
259 * Hence only operation left is updating netdev->devaddr.
260 * Update it if user is passing the same MAC which was used
261 * during configuring VF MAC from PF(Hypervisor).
263 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
264 status = be_cmd_mac_addr_query(adapter, current_mac,
265 false, adapter->if_handle, 0);
266 if (!status && !memcmp(current_mac, addr->sa_data, ETH_ALEN))
272 if (!memcmp(addr->sa_data, netdev->dev_addr, ETH_ALEN))
275 /* For Lancer check if any MAC is active.
276 * If active, get its mac id.
278 if (lancer_chip(adapter) && !be_physfn(adapter))
279 be_cmd_get_mac_from_list(adapter, current_mac, &active_mac,
282 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
284 &adapter->pmac_id[0], 0);
290 be_cmd_pmac_del(adapter, adapter->if_handle,
293 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
296 dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
300 /* BE2 supports only v0 cmd */
301 static void *hw_stats_from_cmd(struct be_adapter *adapter)
303 if (BE2_chip(adapter)) {
304 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
306 return &cmd->hw_stats;
308 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
310 return &cmd->hw_stats;
314 /* BE2 supports only v0 cmd */
315 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
317 if (BE2_chip(adapter)) {
318 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
320 return &hw_stats->erx;
322 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
324 return &hw_stats->erx;
328 static void populate_be_v0_stats(struct be_adapter *adapter)
330 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
331 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
332 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
333 struct be_port_rxf_stats_v0 *port_stats =
334 &rxf_stats->port[adapter->port_num];
335 struct be_drv_stats *drvs = &adapter->drv_stats;
337 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
338 drvs->rx_pause_frames = port_stats->rx_pause_frames;
339 drvs->rx_crc_errors = port_stats->rx_crc_errors;
340 drvs->rx_control_frames = port_stats->rx_control_frames;
341 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
342 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
343 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
344 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
345 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
346 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
347 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
348 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
349 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
350 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
351 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
352 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
353 drvs->rx_dropped_header_too_small =
354 port_stats->rx_dropped_header_too_small;
355 drvs->rx_address_mismatch_drops =
356 port_stats->rx_address_mismatch_drops +
357 port_stats->rx_vlan_mismatch_drops;
358 drvs->rx_alignment_symbol_errors =
359 port_stats->rx_alignment_symbol_errors;
361 drvs->tx_pauseframes = port_stats->tx_pauseframes;
362 drvs->tx_controlframes = port_stats->tx_controlframes;
364 if (adapter->port_num)
365 drvs->jabber_events = rxf_stats->port1_jabber_events;
367 drvs->jabber_events = rxf_stats->port0_jabber_events;
368 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
369 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
370 drvs->forwarded_packets = rxf_stats->forwarded_packets;
371 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
372 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
373 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
374 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
377 static void populate_be_v1_stats(struct be_adapter *adapter)
379 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
380 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
381 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
382 struct be_port_rxf_stats_v1 *port_stats =
383 &rxf_stats->port[adapter->port_num];
384 struct be_drv_stats *drvs = &adapter->drv_stats;
386 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
387 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
388 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
389 drvs->rx_pause_frames = port_stats->rx_pause_frames;
390 drvs->rx_crc_errors = port_stats->rx_crc_errors;
391 drvs->rx_control_frames = port_stats->rx_control_frames;
392 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
393 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
394 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
395 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
396 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
397 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
398 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
399 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
400 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
401 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
402 drvs->rx_dropped_header_too_small =
403 port_stats->rx_dropped_header_too_small;
404 drvs->rx_input_fifo_overflow_drop =
405 port_stats->rx_input_fifo_overflow_drop;
406 drvs->rx_address_mismatch_drops = port_stats->rx_address_mismatch_drops;
407 drvs->rx_alignment_symbol_errors =
408 port_stats->rx_alignment_symbol_errors;
409 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
410 drvs->tx_pauseframes = port_stats->tx_pauseframes;
411 drvs->tx_controlframes = port_stats->tx_controlframes;
412 drvs->jabber_events = port_stats->jabber_events;
413 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
414 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
415 drvs->forwarded_packets = rxf_stats->forwarded_packets;
416 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
417 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
418 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
419 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
422 static void populate_lancer_stats(struct be_adapter *adapter)
425 struct be_drv_stats *drvs = &adapter->drv_stats;
426 struct lancer_pport_stats *pport_stats =
427 pport_stats_from_cmd(adapter);
429 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
430 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
431 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
432 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
433 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
434 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
435 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
436 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
437 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
438 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
439 drvs->rx_dropped_tcp_length =
440 pport_stats->rx_dropped_invalid_tcp_length;
441 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
442 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
443 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
444 drvs->rx_dropped_header_too_small =
445 pport_stats->rx_dropped_header_too_small;
446 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
447 drvs->rx_address_mismatch_drops =
448 pport_stats->rx_address_mismatch_drops +
449 pport_stats->rx_vlan_mismatch_drops;
450 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
451 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
452 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
453 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
454 drvs->jabber_events = pport_stats->rx_jabbers;
455 drvs->forwarded_packets = pport_stats->num_forwards_lo;
456 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
457 drvs->rx_drops_too_many_frags =
458 pport_stats->rx_drops_too_many_frags_lo;
461 static void accumulate_16bit_val(u32 *acc, u16 val)
463 #define lo(x) (x & 0xFFFF)
464 #define hi(x) (x & 0xFFFF0000)
465 bool wrapped = val < lo(*acc);
466 u32 newacc = hi(*acc) + val;
470 ACCESS_ONCE(*acc) = newacc;
473 void be_parse_stats(struct be_adapter *adapter)
475 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
476 struct be_rx_obj *rxo;
479 if (lancer_chip(adapter)) {
480 populate_lancer_stats(adapter);
482 if (BE2_chip(adapter))
483 populate_be_v0_stats(adapter);
485 /* for BE3 and Skyhawk */
486 populate_be_v1_stats(adapter);
488 /* as erx_v1 is longer than v0, ok to use v1 for v0 access */
489 for_all_rx_queues(adapter, rxo, i) {
490 /* below erx HW counter can actually wrap around after
491 * 65535. Driver accumulates a 32-bit value
493 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
494 (u16)erx->rx_drops_no_fragments \
500 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
501 struct rtnl_link_stats64 *stats)
503 struct be_adapter *adapter = netdev_priv(netdev);
504 struct be_drv_stats *drvs = &adapter->drv_stats;
505 struct be_rx_obj *rxo;
506 struct be_tx_obj *txo;
511 for_all_rx_queues(adapter, rxo, i) {
512 const struct be_rx_stats *rx_stats = rx_stats(rxo);
514 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
515 pkts = rx_stats(rxo)->rx_pkts;
516 bytes = rx_stats(rxo)->rx_bytes;
517 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
518 stats->rx_packets += pkts;
519 stats->rx_bytes += bytes;
520 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
521 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
522 rx_stats(rxo)->rx_drops_no_frags;
525 for_all_tx_queues(adapter, txo, i) {
526 const struct be_tx_stats *tx_stats = tx_stats(txo);
528 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
529 pkts = tx_stats(txo)->tx_pkts;
530 bytes = tx_stats(txo)->tx_bytes;
531 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
532 stats->tx_packets += pkts;
533 stats->tx_bytes += bytes;
536 /* bad pkts received */
537 stats->rx_errors = drvs->rx_crc_errors +
538 drvs->rx_alignment_symbol_errors +
539 drvs->rx_in_range_errors +
540 drvs->rx_out_range_errors +
541 drvs->rx_frame_too_long +
542 drvs->rx_dropped_too_small +
543 drvs->rx_dropped_too_short +
544 drvs->rx_dropped_header_too_small +
545 drvs->rx_dropped_tcp_length +
546 drvs->rx_dropped_runt;
548 /* detailed rx errors */
549 stats->rx_length_errors = drvs->rx_in_range_errors +
550 drvs->rx_out_range_errors +
551 drvs->rx_frame_too_long;
553 stats->rx_crc_errors = drvs->rx_crc_errors;
555 /* frame alignment errors */
556 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
558 /* receiver fifo overrun */
559 /* drops_no_pbuf is no per i/f, it's per BE card */
560 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
561 drvs->rx_input_fifo_overflow_drop +
562 drvs->rx_drops_no_pbuf;
566 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
568 struct net_device *netdev = adapter->netdev;
570 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
571 netif_carrier_off(netdev);
572 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
575 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
576 netif_carrier_on(netdev);
578 netif_carrier_off(netdev);
581 static void be_tx_stats_update(struct be_tx_obj *txo,
582 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
584 struct be_tx_stats *stats = tx_stats(txo);
586 u64_stats_update_begin(&stats->sync);
588 stats->tx_wrbs += wrb_cnt;
589 stats->tx_bytes += copied;
590 stats->tx_pkts += (gso_segs ? gso_segs : 1);
593 u64_stats_update_end(&stats->sync);
596 /* Determine number of WRB entries needed to xmit data in an skb */
597 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
600 int cnt = (skb->len > skb->data_len);
602 cnt += skb_shinfo(skb)->nr_frags;
604 /* to account for hdr wrb */
606 if (lancer_chip(adapter) || !(cnt & 1)) {
609 /* add a dummy to make it an even num */
613 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
617 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
619 wrb->frag_pa_hi = upper_32_bits(addr);
620 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
621 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
625 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
631 vlan_tag = vlan_tx_tag_get(skb);
632 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
633 /* If vlan priority provided by OS is NOT in available bmap */
634 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
635 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
636 adapter->recommended_prio;
641 static int be_vlan_tag_chk(struct be_adapter *adapter, struct sk_buff *skb)
643 return vlan_tx_tag_present(skb) || adapter->pvid;
646 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
647 struct sk_buff *skb, u32 wrb_cnt, u32 len)
651 memset(hdr, 0, sizeof(*hdr));
653 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
655 if (skb_is_gso(skb)) {
656 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
657 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
658 hdr, skb_shinfo(skb)->gso_size);
659 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
660 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
661 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
663 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
664 else if (is_udp_pkt(skb))
665 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
668 if (vlan_tx_tag_present(skb)) {
669 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
670 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
671 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
674 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
675 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
676 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
677 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
680 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
685 be_dws_le_to_cpu(wrb, sizeof(*wrb));
687 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
690 dma_unmap_single(dev, dma, wrb->frag_len,
693 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
697 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
698 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
702 struct device *dev = &adapter->pdev->dev;
703 struct sk_buff *first_skb = skb;
704 struct be_eth_wrb *wrb;
705 struct be_eth_hdr_wrb *hdr;
706 bool map_single = false;
709 hdr = queue_head_node(txq);
711 map_head = txq->head;
713 if (skb->len > skb->data_len) {
714 int len = skb_headlen(skb);
715 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
716 if (dma_mapping_error(dev, busaddr))
719 wrb = queue_head_node(txq);
720 wrb_fill(wrb, busaddr, len);
721 be_dws_cpu_to_le(wrb, sizeof(*wrb));
726 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
727 const struct skb_frag_struct *frag =
728 &skb_shinfo(skb)->frags[i];
729 busaddr = skb_frag_dma_map(dev, frag, 0,
730 skb_frag_size(frag), DMA_TO_DEVICE);
731 if (dma_mapping_error(dev, busaddr))
733 wrb = queue_head_node(txq);
734 wrb_fill(wrb, busaddr, skb_frag_size(frag));
735 be_dws_cpu_to_le(wrb, sizeof(*wrb));
737 copied += skb_frag_size(frag);
741 wrb = queue_head_node(txq);
743 be_dws_cpu_to_le(wrb, sizeof(*wrb));
747 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
748 be_dws_cpu_to_le(hdr, sizeof(*hdr));
752 txq->head = map_head;
754 wrb = queue_head_node(txq);
755 unmap_tx_frag(dev, wrb, map_single);
757 copied -= wrb->frag_len;
763 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
768 skb = skb_share_check(skb, GFP_ATOMIC);
772 if (vlan_tx_tag_present(skb)) {
773 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
774 __vlan_put_tag(skb, vlan_tag);
781 static netdev_tx_t be_xmit(struct sk_buff *skb,
782 struct net_device *netdev)
784 struct be_adapter *adapter = netdev_priv(netdev);
785 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
786 struct be_queue_info *txq = &txo->q;
787 struct iphdr *ip = NULL;
788 u32 wrb_cnt = 0, copied = 0;
789 u32 start = txq->head, eth_hdr_len;
790 bool dummy_wrb, stopped = false;
792 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
793 VLAN_ETH_HLEN : ETH_HLEN;
795 /* HW has a bug which considers padding bytes as legal
796 * and modifies the IPv4 hdr's 'tot_len' field
798 if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
800 ip = (struct iphdr *)ip_hdr(skb);
801 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
804 /* HW has a bug wherein it will calculate CSUM for VLAN
805 * pkts even though it is disabled.
806 * Manually insert VLAN in pkt.
808 if (skb->ip_summed != CHECKSUM_PARTIAL &&
809 be_vlan_tag_chk(adapter, skb)) {
810 skb = be_insert_vlan_in_pkt(adapter, skb);
815 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
817 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
819 int gso_segs = skb_shinfo(skb)->gso_segs;
821 /* record the sent skb in the sent_skb table */
822 BUG_ON(txo->sent_skb_list[start]);
823 txo->sent_skb_list[start] = skb;
825 /* Ensure txq has space for the next skb; Else stop the queue
826 * *BEFORE* ringing the tx doorbell, so that we serialze the
827 * tx compls of the current transmit which'll wake up the queue
829 atomic_add(wrb_cnt, &txq->used);
830 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
832 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
836 be_txq_notify(adapter, txq->id, wrb_cnt);
838 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
841 dev_kfree_skb_any(skb);
847 static int be_change_mtu(struct net_device *netdev, int new_mtu)
849 struct be_adapter *adapter = netdev_priv(netdev);
850 if (new_mtu < BE_MIN_MTU ||
851 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
852 (ETH_HLEN + ETH_FCS_LEN))) {
853 dev_info(&adapter->pdev->dev,
854 "MTU must be between %d and %d bytes\n",
856 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
859 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
860 netdev->mtu, new_mtu);
861 netdev->mtu = new_mtu;
866 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
867 * If the user configures more, place BE in vlan promiscuous mode.
869 static int be_vid_config(struct be_adapter *adapter)
871 u16 vids[BE_NUM_VLANS_SUPPORTED];
875 /* No need to further configure vids if in promiscuous mode */
876 if (adapter->promiscuous)
879 if (adapter->vlans_added > adapter->max_vlans)
880 goto set_vlan_promisc;
882 /* Construct VLAN Table to give to HW */
883 for (i = 0; i < VLAN_N_VID; i++)
884 if (adapter->vlan_tag[i])
885 vids[num++] = cpu_to_le16(i);
887 status = be_cmd_vlan_config(adapter, adapter->if_handle,
890 /* Set to VLAN promisc mode as setting VLAN filter failed */
892 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
893 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
894 goto set_vlan_promisc;
900 status = be_cmd_vlan_config(adapter, adapter->if_handle,
905 static int be_vlan_add_vid(struct net_device *netdev, u16 vid)
907 struct be_adapter *adapter = netdev_priv(netdev);
910 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
915 /* Packets with VID 0 are always received by Lancer by default */
916 if (lancer_chip(adapter) && vid == 0)
919 adapter->vlan_tag[vid] = 1;
920 if (adapter->vlans_added <= (adapter->max_vlans + 1))
921 status = be_vid_config(adapter);
924 adapter->vlans_added++;
926 adapter->vlan_tag[vid] = 0;
931 static int be_vlan_rem_vid(struct net_device *netdev, u16 vid)
933 struct be_adapter *adapter = netdev_priv(netdev);
936 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
941 /* Packets with VID 0 are always received by Lancer by default */
942 if (lancer_chip(adapter) && vid == 0)
945 adapter->vlan_tag[vid] = 0;
946 if (adapter->vlans_added <= adapter->max_vlans)
947 status = be_vid_config(adapter);
950 adapter->vlans_added--;
952 adapter->vlan_tag[vid] = 1;
957 static void be_set_rx_mode(struct net_device *netdev)
959 struct be_adapter *adapter = netdev_priv(netdev);
962 if (netdev->flags & IFF_PROMISC) {
963 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
964 adapter->promiscuous = true;
968 /* BE was previously in promiscuous mode; disable it */
969 if (adapter->promiscuous) {
970 adapter->promiscuous = false;
971 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
973 if (adapter->vlans_added)
974 be_vid_config(adapter);
977 /* Enable multicast promisc if num configured exceeds what we support */
978 if (netdev->flags & IFF_ALLMULTI ||
979 netdev_mc_count(netdev) > adapter->max_mcast_mac) {
980 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
984 if (netdev_uc_count(netdev) != adapter->uc_macs) {
985 struct netdev_hw_addr *ha;
986 int i = 1; /* First slot is claimed by the Primary MAC */
988 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
989 be_cmd_pmac_del(adapter, adapter->if_handle,
990 adapter->pmac_id[i], 0);
993 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
994 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
995 adapter->promiscuous = true;
999 netdev_for_each_uc_addr(ha, adapter->netdev) {
1000 adapter->uc_macs++; /* First slot is for Primary MAC */
1001 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1003 &adapter->pmac_id[adapter->uc_macs], 0);
1007 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1009 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1011 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1012 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1013 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1019 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1021 struct be_adapter *adapter = netdev_priv(netdev);
1022 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1024 bool active_mac = false;
1026 u8 old_mac[ETH_ALEN];
1028 if (!sriov_enabled(adapter))
1031 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1034 if (lancer_chip(adapter)) {
1035 status = be_cmd_get_mac_from_list(adapter, old_mac, &active_mac,
1037 if (!status && active_mac)
1038 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1041 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
1043 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1044 vf_cfg->pmac_id, vf + 1);
1046 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1047 &vf_cfg->pmac_id, vf + 1);
1051 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1054 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1059 static int be_get_vf_config(struct net_device *netdev, int vf,
1060 struct ifla_vf_info *vi)
1062 struct be_adapter *adapter = netdev_priv(netdev);
1063 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1065 if (!sriov_enabled(adapter))
1068 if (vf >= adapter->num_vfs)
1072 vi->tx_rate = vf_cfg->tx_rate;
1073 vi->vlan = vf_cfg->vlan_tag;
1075 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1080 static int be_set_vf_vlan(struct net_device *netdev,
1081 int vf, u16 vlan, u8 qos)
1083 struct be_adapter *adapter = netdev_priv(netdev);
1086 if (!sriov_enabled(adapter))
1089 if (vf >= adapter->num_vfs || vlan > 4095)
1093 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1094 /* If this is new value, program it. Else skip. */
1095 adapter->vf_cfg[vf].vlan_tag = vlan;
1097 status = be_cmd_set_hsw_config(adapter, vlan,
1098 vf + 1, adapter->vf_cfg[vf].if_handle);
1101 /* Reset Transparent Vlan Tagging. */
1102 adapter->vf_cfg[vf].vlan_tag = 0;
1103 vlan = adapter->vf_cfg[vf].def_vid;
1104 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1105 adapter->vf_cfg[vf].if_handle);
1110 dev_info(&adapter->pdev->dev,
1111 "VLAN %d config on VF %d failed\n", vlan, vf);
1115 static int be_set_vf_tx_rate(struct net_device *netdev,
1118 struct be_adapter *adapter = netdev_priv(netdev);
1121 if (!sriov_enabled(adapter))
1124 if (vf >= adapter->num_vfs)
1127 if (rate < 100 || rate > 10000) {
1128 dev_err(&adapter->pdev->dev,
1129 "tx rate must be between 100 and 10000 Mbps\n");
1133 if (lancer_chip(adapter))
1134 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1136 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1139 dev_err(&adapter->pdev->dev,
1140 "tx rate %d on VF %d failed\n", rate, vf);
1142 adapter->vf_cfg[vf].tx_rate = rate;
1146 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1148 struct pci_dev *dev, *pdev = adapter->pdev;
1149 int vfs = 0, assigned_vfs = 0, pos;
1152 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1155 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1156 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1158 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1160 if (dev->is_virtfn && pci_physfn(dev) == pdev) {
1162 if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1165 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1167 return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1170 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1172 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1173 ulong now = jiffies;
1174 ulong delta = now - stats->rx_jiffies;
1176 unsigned int start, eqd;
1178 if (!eqo->enable_aic) {
1183 if (eqo->idx >= adapter->num_rx_qs)
1186 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1188 /* Wrapped around */
1189 if (time_before(now, stats->rx_jiffies)) {
1190 stats->rx_jiffies = now;
1194 /* Update once a second */
1199 start = u64_stats_fetch_begin_bh(&stats->sync);
1200 pkts = stats->rx_pkts;
1201 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1203 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1204 stats->rx_pkts_prev = pkts;
1205 stats->rx_jiffies = now;
1206 eqd = (stats->rx_pps / 110000) << 3;
1207 eqd = min(eqd, eqo->max_eqd);
1208 eqd = max(eqd, eqo->min_eqd);
1213 if (eqd != eqo->cur_eqd) {
1214 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1219 static void be_rx_stats_update(struct be_rx_obj *rxo,
1220 struct be_rx_compl_info *rxcp)
1222 struct be_rx_stats *stats = rx_stats(rxo);
1224 u64_stats_update_begin(&stats->sync);
1226 stats->rx_bytes += rxcp->pkt_size;
1228 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1229 stats->rx_mcast_pkts++;
1231 stats->rx_compl_err++;
1232 u64_stats_update_end(&stats->sync);
1235 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1237 /* L4 checksum is not reliable for non TCP/UDP packets.
1238 * Also ignore ipcksm for ipv6 pkts */
1239 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1240 (rxcp->ip_csum || rxcp->ipv6);
1243 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1246 struct be_adapter *adapter = rxo->adapter;
1247 struct be_rx_page_info *rx_page_info;
1248 struct be_queue_info *rxq = &rxo->q;
1250 rx_page_info = &rxo->page_info_tbl[frag_idx];
1251 BUG_ON(!rx_page_info->page);
1253 if (rx_page_info->last_page_user) {
1254 dma_unmap_page(&adapter->pdev->dev,
1255 dma_unmap_addr(rx_page_info, bus),
1256 adapter->big_page_size, DMA_FROM_DEVICE);
1257 rx_page_info->last_page_user = false;
1260 atomic_dec(&rxq->used);
1261 return rx_page_info;
1264 /* Throwaway the data in the Rx completion */
1265 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1266 struct be_rx_compl_info *rxcp)
1268 struct be_queue_info *rxq = &rxo->q;
1269 struct be_rx_page_info *page_info;
1270 u16 i, num_rcvd = rxcp->num_rcvd;
1272 for (i = 0; i < num_rcvd; i++) {
1273 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1274 put_page(page_info->page);
1275 memset(page_info, 0, sizeof(*page_info));
1276 index_inc(&rxcp->rxq_idx, rxq->len);
1281 * skb_fill_rx_data forms a complete skb for an ether frame
1282 * indicated by rxcp.
1284 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1285 struct be_rx_compl_info *rxcp)
1287 struct be_queue_info *rxq = &rxo->q;
1288 struct be_rx_page_info *page_info;
1290 u16 hdr_len, curr_frag_len, remaining;
1293 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1294 start = page_address(page_info->page) + page_info->page_offset;
1297 /* Copy data in the first descriptor of this completion */
1298 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1300 skb->len = curr_frag_len;
1301 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1302 memcpy(skb->data, start, curr_frag_len);
1303 /* Complete packet has now been moved to data */
1304 put_page(page_info->page);
1306 skb->tail += curr_frag_len;
1309 memcpy(skb->data, start, hdr_len);
1310 skb_shinfo(skb)->nr_frags = 1;
1311 skb_frag_set_page(skb, 0, page_info->page);
1312 skb_shinfo(skb)->frags[0].page_offset =
1313 page_info->page_offset + hdr_len;
1314 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1315 skb->data_len = curr_frag_len - hdr_len;
1316 skb->truesize += rx_frag_size;
1317 skb->tail += hdr_len;
1319 page_info->page = NULL;
1321 if (rxcp->pkt_size <= rx_frag_size) {
1322 BUG_ON(rxcp->num_rcvd != 1);
1326 /* More frags present for this completion */
1327 index_inc(&rxcp->rxq_idx, rxq->len);
1328 remaining = rxcp->pkt_size - curr_frag_len;
1329 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1330 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1331 curr_frag_len = min(remaining, rx_frag_size);
1333 /* Coalesce all frags from the same physical page in one slot */
1334 if (page_info->page_offset == 0) {
1337 skb_frag_set_page(skb, j, page_info->page);
1338 skb_shinfo(skb)->frags[j].page_offset =
1339 page_info->page_offset;
1340 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1341 skb_shinfo(skb)->nr_frags++;
1343 put_page(page_info->page);
1346 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1347 skb->len += curr_frag_len;
1348 skb->data_len += curr_frag_len;
1349 skb->truesize += rx_frag_size;
1350 remaining -= curr_frag_len;
1351 index_inc(&rxcp->rxq_idx, rxq->len);
1352 page_info->page = NULL;
1354 BUG_ON(j > MAX_SKB_FRAGS);
1357 /* Process the RX completion indicated by rxcp when GRO is disabled */
1358 static void be_rx_compl_process(struct be_rx_obj *rxo,
1359 struct be_rx_compl_info *rxcp)
1361 struct be_adapter *adapter = rxo->adapter;
1362 struct net_device *netdev = adapter->netdev;
1363 struct sk_buff *skb;
1365 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1366 if (unlikely(!skb)) {
1367 rx_stats(rxo)->rx_drops_no_skbs++;
1368 be_rx_compl_discard(rxo, rxcp);
1372 skb_fill_rx_data(rxo, skb, rxcp);
1374 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1375 skb->ip_summed = CHECKSUM_UNNECESSARY;
1377 skb_checksum_none_assert(skb);
1379 skb->protocol = eth_type_trans(skb, netdev);
1380 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1381 if (netdev->features & NETIF_F_RXHASH)
1382 skb->rxhash = rxcp->rss_hash;
1386 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1388 netif_receive_skb(skb);
1391 /* Process the RX completion indicated by rxcp when GRO is enabled */
1392 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1393 struct be_rx_compl_info *rxcp)
1395 struct be_adapter *adapter = rxo->adapter;
1396 struct be_rx_page_info *page_info;
1397 struct sk_buff *skb = NULL;
1398 struct be_queue_info *rxq = &rxo->q;
1399 u16 remaining, curr_frag_len;
1402 skb = napi_get_frags(napi);
1404 be_rx_compl_discard(rxo, rxcp);
1408 remaining = rxcp->pkt_size;
1409 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1410 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1412 curr_frag_len = min(remaining, rx_frag_size);
1414 /* Coalesce all frags from the same physical page in one slot */
1415 if (i == 0 || page_info->page_offset == 0) {
1416 /* First frag or Fresh page */
1418 skb_frag_set_page(skb, j, page_info->page);
1419 skb_shinfo(skb)->frags[j].page_offset =
1420 page_info->page_offset;
1421 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1423 put_page(page_info->page);
1425 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1426 skb->truesize += rx_frag_size;
1427 remaining -= curr_frag_len;
1428 index_inc(&rxcp->rxq_idx, rxq->len);
1429 memset(page_info, 0, sizeof(*page_info));
1431 BUG_ON(j > MAX_SKB_FRAGS);
1433 skb_shinfo(skb)->nr_frags = j + 1;
1434 skb->len = rxcp->pkt_size;
1435 skb->data_len = rxcp->pkt_size;
1436 skb->ip_summed = CHECKSUM_UNNECESSARY;
1437 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1438 if (adapter->netdev->features & NETIF_F_RXHASH)
1439 skb->rxhash = rxcp->rss_hash;
1442 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1444 napi_gro_frags(napi);
1447 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1448 struct be_rx_compl_info *rxcp)
1451 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1452 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1453 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1454 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1455 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1457 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1459 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1461 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1463 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1465 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1467 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1469 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1471 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1473 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1476 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1479 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1480 struct be_rx_compl_info *rxcp)
1483 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1484 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1485 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1486 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1487 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1489 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1491 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1493 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1495 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1497 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1499 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1501 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1503 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1505 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1508 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1511 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1513 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1514 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1515 struct be_adapter *adapter = rxo->adapter;
1517 /* For checking the valid bit it is Ok to use either definition as the
1518 * valid bit is at the same position in both v0 and v1 Rx compl */
1519 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1523 be_dws_le_to_cpu(compl, sizeof(*compl));
1525 if (adapter->be3_native)
1526 be_parse_rx_compl_v1(compl, rxcp);
1528 be_parse_rx_compl_v0(compl, rxcp);
1531 /* vlanf could be wrongly set in some cards.
1532 * ignore if vtm is not set */
1533 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1536 if (!lancer_chip(adapter))
1537 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1539 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1540 !adapter->vlan_tag[rxcp->vlan_tag])
1544 /* As the compl has been parsed, reset it; we wont touch it again */
1545 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1547 queue_tail_inc(&rxo->cq);
1551 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1553 u32 order = get_order(size);
1557 return alloc_pages(gfp, order);
1561 * Allocate a page, split it to fragments of size rx_frag_size and post as
1562 * receive buffers to BE
1564 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1566 struct be_adapter *adapter = rxo->adapter;
1567 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1568 struct be_queue_info *rxq = &rxo->q;
1569 struct page *pagep = NULL;
1570 struct be_eth_rx_d *rxd;
1571 u64 page_dmaaddr = 0, frag_dmaaddr;
1572 u32 posted, page_offset = 0;
1574 page_info = &rxo->page_info_tbl[rxq->head];
1575 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1577 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1578 if (unlikely(!pagep)) {
1579 rx_stats(rxo)->rx_post_fail++;
1582 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1583 0, adapter->big_page_size,
1585 page_info->page_offset = 0;
1588 page_info->page_offset = page_offset + rx_frag_size;
1590 page_offset = page_info->page_offset;
1591 page_info->page = pagep;
1592 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1593 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1595 rxd = queue_head_node(rxq);
1596 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1597 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1599 /* Any space left in the current big page for another frag? */
1600 if ((page_offset + rx_frag_size + rx_frag_size) >
1601 adapter->big_page_size) {
1603 page_info->last_page_user = true;
1606 prev_page_info = page_info;
1607 queue_head_inc(rxq);
1608 page_info = &rxo->page_info_tbl[rxq->head];
1611 prev_page_info->last_page_user = true;
1614 atomic_add(posted, &rxq->used);
1615 be_rxq_notify(adapter, rxq->id, posted);
1616 } else if (atomic_read(&rxq->used) == 0) {
1617 /* Let be_worker replenish when memory is available */
1618 rxo->rx_post_starved = true;
1622 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1624 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1626 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1630 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1632 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1634 queue_tail_inc(tx_cq);
1638 static u16 be_tx_compl_process(struct be_adapter *adapter,
1639 struct be_tx_obj *txo, u16 last_index)
1641 struct be_queue_info *txq = &txo->q;
1642 struct be_eth_wrb *wrb;
1643 struct sk_buff **sent_skbs = txo->sent_skb_list;
1644 struct sk_buff *sent_skb;
1645 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1646 bool unmap_skb_hdr = true;
1648 sent_skb = sent_skbs[txq->tail];
1650 sent_skbs[txq->tail] = NULL;
1652 /* skip header wrb */
1653 queue_tail_inc(txq);
1656 cur_index = txq->tail;
1657 wrb = queue_tail_node(txq);
1658 unmap_tx_frag(&adapter->pdev->dev, wrb,
1659 (unmap_skb_hdr && skb_headlen(sent_skb)));
1660 unmap_skb_hdr = false;
1663 queue_tail_inc(txq);
1664 } while (cur_index != last_index);
1666 kfree_skb(sent_skb);
1670 /* Return the number of events in the event queue */
1671 static inline int events_get(struct be_eq_obj *eqo)
1673 struct be_eq_entry *eqe;
1677 eqe = queue_tail_node(&eqo->q);
1684 queue_tail_inc(&eqo->q);
1690 /* Leaves the EQ is disarmed state */
1691 static void be_eq_clean(struct be_eq_obj *eqo)
1693 int num = events_get(eqo);
1695 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1698 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1700 struct be_rx_page_info *page_info;
1701 struct be_queue_info *rxq = &rxo->q;
1702 struct be_queue_info *rx_cq = &rxo->cq;
1703 struct be_rx_compl_info *rxcp;
1704 struct be_adapter *adapter = rxo->adapter;
1708 /* Consume pending rx completions.
1709 * Wait for the flush completion (identified by zero num_rcvd)
1710 * to arrive. Notify CQ even when there are no more CQ entries
1711 * for HW to flush partially coalesced CQ entries.
1712 * In Lancer, there is no need to wait for flush compl.
1715 rxcp = be_rx_compl_get(rxo);
1717 if (lancer_chip(adapter))
1720 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1721 dev_warn(&adapter->pdev->dev,
1722 "did not receive flush compl\n");
1725 be_cq_notify(adapter, rx_cq->id, true, 0);
1728 be_rx_compl_discard(rxo, rxcp);
1729 be_cq_notify(adapter, rx_cq->id, true, 1);
1730 if (rxcp->num_rcvd == 0)
1735 /* After cleanup, leave the CQ in unarmed state */
1736 be_cq_notify(adapter, rx_cq->id, false, 0);
1738 /* Then free posted rx buffers that were not used */
1739 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1740 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1741 page_info = get_rx_page_info(rxo, tail);
1742 put_page(page_info->page);
1743 memset(page_info, 0, sizeof(*page_info));
1745 BUG_ON(atomic_read(&rxq->used));
1746 rxq->tail = rxq->head = 0;
1749 static void be_tx_compl_clean(struct be_adapter *adapter)
1751 struct be_tx_obj *txo;
1752 struct be_queue_info *txq;
1753 struct be_eth_tx_compl *txcp;
1754 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1755 struct sk_buff *sent_skb;
1757 int i, pending_txqs;
1759 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1761 pending_txqs = adapter->num_tx_qs;
1763 for_all_tx_queues(adapter, txo, i) {
1765 while ((txcp = be_tx_compl_get(&txo->cq))) {
1767 AMAP_GET_BITS(struct amap_eth_tx_compl,
1769 num_wrbs += be_tx_compl_process(adapter, txo,
1774 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1775 atomic_sub(num_wrbs, &txq->used);
1779 if (atomic_read(&txq->used) == 0)
1783 if (pending_txqs == 0 || ++timeo > 200)
1789 for_all_tx_queues(adapter, txo, i) {
1791 if (atomic_read(&txq->used))
1792 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1793 atomic_read(&txq->used));
1795 /* free posted tx for which compls will never arrive */
1796 while (atomic_read(&txq->used)) {
1797 sent_skb = txo->sent_skb_list[txq->tail];
1798 end_idx = txq->tail;
1799 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1801 index_adv(&end_idx, num_wrbs - 1, txq->len);
1802 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1803 atomic_sub(num_wrbs, &txq->used);
1808 static void be_evt_queues_destroy(struct be_adapter *adapter)
1810 struct be_eq_obj *eqo;
1813 for_all_evt_queues(adapter, eqo, i) {
1814 if (eqo->q.created) {
1816 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1818 be_queue_free(adapter, &eqo->q);
1822 static int be_evt_queues_create(struct be_adapter *adapter)
1824 struct be_queue_info *eq;
1825 struct be_eq_obj *eqo;
1828 adapter->num_evt_qs = num_irqs(adapter);
1830 for_all_evt_queues(adapter, eqo, i) {
1831 eqo->adapter = adapter;
1832 eqo->tx_budget = BE_TX_BUDGET;
1834 eqo->max_eqd = BE_MAX_EQD;
1835 eqo->enable_aic = true;
1838 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1839 sizeof(struct be_eq_entry));
1843 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1850 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1852 struct be_queue_info *q;
1854 q = &adapter->mcc_obj.q;
1856 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1857 be_queue_free(adapter, q);
1859 q = &adapter->mcc_obj.cq;
1861 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1862 be_queue_free(adapter, q);
1865 /* Must be called only after TX qs are created as MCC shares TX EQ */
1866 static int be_mcc_queues_create(struct be_adapter *adapter)
1868 struct be_queue_info *q, *cq;
1870 cq = &adapter->mcc_obj.cq;
1871 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1872 sizeof(struct be_mcc_compl)))
1875 /* Use the default EQ for MCC completions */
1876 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1879 q = &adapter->mcc_obj.q;
1880 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1881 goto mcc_cq_destroy;
1883 if (be_cmd_mccq_create(adapter, q, cq))
1889 be_queue_free(adapter, q);
1891 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1893 be_queue_free(adapter, cq);
1898 static void be_tx_queues_destroy(struct be_adapter *adapter)
1900 struct be_queue_info *q;
1901 struct be_tx_obj *txo;
1904 for_all_tx_queues(adapter, txo, i) {
1907 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1908 be_queue_free(adapter, q);
1912 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1913 be_queue_free(adapter, q);
1917 static int be_num_txqs_want(struct be_adapter *adapter)
1919 if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
1920 be_is_mc(adapter) ||
1921 (!lancer_chip(adapter) && !be_physfn(adapter)) ||
1925 return adapter->max_tx_queues;
1928 static int be_tx_cqs_create(struct be_adapter *adapter)
1930 struct be_queue_info *cq, *eq;
1932 struct be_tx_obj *txo;
1935 adapter->num_tx_qs = be_num_txqs_want(adapter);
1936 if (adapter->num_tx_qs != MAX_TX_QS) {
1938 netif_set_real_num_tx_queues(adapter->netdev,
1939 adapter->num_tx_qs);
1943 for_all_tx_queues(adapter, txo, i) {
1945 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
1946 sizeof(struct be_eth_tx_compl));
1950 /* If num_evt_qs is less than num_tx_qs, then more than
1951 * one txq share an eq
1953 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1954 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
1961 static int be_tx_qs_create(struct be_adapter *adapter)
1963 struct be_tx_obj *txo;
1966 for_all_tx_queues(adapter, txo, i) {
1967 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
1968 sizeof(struct be_eth_wrb));
1972 status = be_cmd_txq_create(adapter, &txo->q, &txo->cq);
1977 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
1978 adapter->num_tx_qs);
1982 static void be_rx_cqs_destroy(struct be_adapter *adapter)
1984 struct be_queue_info *q;
1985 struct be_rx_obj *rxo;
1988 for_all_rx_queues(adapter, rxo, i) {
1991 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1992 be_queue_free(adapter, q);
1996 static int be_rx_cqs_create(struct be_adapter *adapter)
1998 struct be_queue_info *eq, *cq;
1999 struct be_rx_obj *rxo;
2002 /* We'll create as many RSS rings as there are irqs.
2003 * But when there's only one irq there's no use creating RSS rings
2005 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
2006 num_irqs(adapter) + 1 : 1;
2007 if (adapter->num_rx_qs != MAX_RX_QS) {
2009 netif_set_real_num_rx_queues(adapter->netdev,
2010 adapter->num_rx_qs);
2014 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2015 for_all_rx_queues(adapter, rxo, i) {
2016 rxo->adapter = adapter;
2018 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2019 sizeof(struct be_eth_rx_compl));
2023 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2024 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2029 dev_info(&adapter->pdev->dev,
2030 "created %d RSS queue(s) and 1 default RX queue\n",
2031 adapter->num_rx_qs - 1);
2035 static irqreturn_t be_intx(int irq, void *dev)
2037 struct be_eq_obj *eqo = dev;
2038 struct be_adapter *adapter = eqo->adapter;
2041 /* IRQ is not expected when NAPI is scheduled as the EQ
2042 * will not be armed.
2043 * But, this can happen on Lancer INTx where it takes
2044 * a while to de-assert INTx or in BE2 where occasionaly
2045 * an interrupt may be raised even when EQ is unarmed.
2046 * If NAPI is already scheduled, then counting & notifying
2047 * events will orphan them.
2049 if (napi_schedule_prep(&eqo->napi)) {
2050 num_evts = events_get(eqo);
2051 __napi_schedule(&eqo->napi);
2053 eqo->spurious_intr = 0;
2055 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2057 /* Return IRQ_HANDLED only for the the first spurious intr
2058 * after a valid intr to stop the kernel from branding
2059 * this irq as a bad one!
2061 if (num_evts || eqo->spurious_intr++ == 0)
2067 static irqreturn_t be_msix(int irq, void *dev)
2069 struct be_eq_obj *eqo = dev;
2071 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2072 napi_schedule(&eqo->napi);
2076 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2078 return (rxcp->tcpf && !rxcp->err) ? true : false;
2081 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2084 struct be_adapter *adapter = rxo->adapter;
2085 struct be_queue_info *rx_cq = &rxo->cq;
2086 struct be_rx_compl_info *rxcp;
2089 for (work_done = 0; work_done < budget; work_done++) {
2090 rxcp = be_rx_compl_get(rxo);
2094 /* Is it a flush compl that has no data */
2095 if (unlikely(rxcp->num_rcvd == 0))
2098 /* Discard compl with partial DMA Lancer B0 */
2099 if (unlikely(!rxcp->pkt_size)) {
2100 be_rx_compl_discard(rxo, rxcp);
2104 /* On BE drop pkts that arrive due to imperfect filtering in
2105 * promiscuous mode on some skews
2107 if (unlikely(rxcp->port != adapter->port_num &&
2108 !lancer_chip(adapter))) {
2109 be_rx_compl_discard(rxo, rxcp);
2114 be_rx_compl_process_gro(rxo, napi, rxcp);
2116 be_rx_compl_process(rxo, rxcp);
2118 be_rx_stats_update(rxo, rxcp);
2122 be_cq_notify(adapter, rx_cq->id, true, work_done);
2124 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2125 be_post_rx_frags(rxo, GFP_ATOMIC);
2131 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2132 int budget, int idx)
2134 struct be_eth_tx_compl *txcp;
2135 int num_wrbs = 0, work_done;
2137 for (work_done = 0; work_done < budget; work_done++) {
2138 txcp = be_tx_compl_get(&txo->cq);
2141 num_wrbs += be_tx_compl_process(adapter, txo,
2142 AMAP_GET_BITS(struct amap_eth_tx_compl,
2147 be_cq_notify(adapter, txo->cq.id, true, work_done);
2148 atomic_sub(num_wrbs, &txo->q.used);
2150 /* As Tx wrbs have been freed up, wake up netdev queue
2151 * if it was stopped due to lack of tx wrbs. */
2152 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2153 atomic_read(&txo->q.used) < txo->q.len / 2) {
2154 netif_wake_subqueue(adapter->netdev, idx);
2157 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2158 tx_stats(txo)->tx_compl += work_done;
2159 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2161 return (work_done < budget); /* Done */
2164 int be_poll(struct napi_struct *napi, int budget)
2166 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2167 struct be_adapter *adapter = eqo->adapter;
2168 int max_work = 0, work, i, num_evts;
2171 num_evts = events_get(eqo);
2173 /* Process all TXQs serviced by this EQ */
2174 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2175 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2181 /* This loop will iterate twice for EQ0 in which
2182 * completions of the last RXQ (default one) are also processed
2183 * For other EQs the loop iterates only once
2185 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2186 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2187 max_work = max(work, max_work);
2190 if (is_mcc_eqo(eqo))
2191 be_process_mcc(adapter);
2193 if (max_work < budget) {
2194 napi_complete(napi);
2195 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2197 /* As we'll continue in polling mode, count and clear events */
2198 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2203 void be_detect_error(struct be_adapter *adapter)
2205 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2206 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2209 if (be_hw_error(adapter))
2212 if (lancer_chip(adapter)) {
2213 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2214 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2215 sliport_err1 = ioread32(adapter->db +
2216 SLIPORT_ERROR1_OFFSET);
2217 sliport_err2 = ioread32(adapter->db +
2218 SLIPORT_ERROR2_OFFSET);
2221 pci_read_config_dword(adapter->pdev,
2222 PCICFG_UE_STATUS_LOW, &ue_lo);
2223 pci_read_config_dword(adapter->pdev,
2224 PCICFG_UE_STATUS_HIGH, &ue_hi);
2225 pci_read_config_dword(adapter->pdev,
2226 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2227 pci_read_config_dword(adapter->pdev,
2228 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2230 ue_lo = (ue_lo & ~ue_lo_mask);
2231 ue_hi = (ue_hi & ~ue_hi_mask);
2234 /* On certain platforms BE hardware can indicate spurious UEs.
2235 * Allow the h/w to stop working completely in case of a real UE.
2236 * Hence not setting the hw_error for UE detection.
2238 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2239 adapter->hw_error = true;
2240 dev_err(&adapter->pdev->dev,
2241 "Error detected in the card\n");
2244 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2245 dev_err(&adapter->pdev->dev,
2246 "ERR: sliport status 0x%x\n", sliport_status);
2247 dev_err(&adapter->pdev->dev,
2248 "ERR: sliport error1 0x%x\n", sliport_err1);
2249 dev_err(&adapter->pdev->dev,
2250 "ERR: sliport error2 0x%x\n", sliport_err2);
2254 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2256 dev_err(&adapter->pdev->dev,
2257 "UE: %s bit set\n", ue_status_low_desc[i]);
2262 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2264 dev_err(&adapter->pdev->dev,
2265 "UE: %s bit set\n", ue_status_hi_desc[i]);
2271 static void be_msix_disable(struct be_adapter *adapter)
2273 if (msix_enabled(adapter)) {
2274 pci_disable_msix(adapter->pdev);
2275 adapter->num_msix_vec = 0;
2279 static uint be_num_rss_want(struct be_adapter *adapter)
2283 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2284 (lancer_chip(adapter) ||
2285 (!sriov_want(adapter) && be_physfn(adapter)))) {
2286 num = adapter->max_rss_queues;
2287 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2292 static void be_msix_enable(struct be_adapter *adapter)
2294 #define BE_MIN_MSIX_VECTORS 1
2295 int i, status, num_vec, num_roce_vec = 0;
2296 struct device *dev = &adapter->pdev->dev;
2298 /* If RSS queues are not used, need a vec for default RX Q */
2299 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2300 if (be_roce_supported(adapter)) {
2301 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2302 (num_online_cpus() + 1));
2303 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2304 num_vec += num_roce_vec;
2305 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2307 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2309 for (i = 0; i < num_vec; i++)
2310 adapter->msix_entries[i].entry = i;
2312 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2315 } else if (status >= BE_MIN_MSIX_VECTORS) {
2317 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2322 dev_warn(dev, "MSIx enable failed\n");
2325 if (be_roce_supported(adapter)) {
2326 if (num_vec > num_roce_vec) {
2327 adapter->num_msix_vec = num_vec - num_roce_vec;
2328 adapter->num_msix_roce_vec =
2329 num_vec - adapter->num_msix_vec;
2331 adapter->num_msix_vec = num_vec;
2332 adapter->num_msix_roce_vec = 0;
2335 adapter->num_msix_vec = num_vec;
2336 dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
2340 static inline int be_msix_vec_get(struct be_adapter *adapter,
2341 struct be_eq_obj *eqo)
2343 return adapter->msix_entries[eqo->idx].vector;
2346 static int be_msix_register(struct be_adapter *adapter)
2348 struct net_device *netdev = adapter->netdev;
2349 struct be_eq_obj *eqo;
2352 for_all_evt_queues(adapter, eqo, i) {
2353 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2354 vec = be_msix_vec_get(adapter, eqo);
2355 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2362 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2363 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2364 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2366 be_msix_disable(adapter);
2370 static int be_irq_register(struct be_adapter *adapter)
2372 struct net_device *netdev = adapter->netdev;
2375 if (msix_enabled(adapter)) {
2376 status = be_msix_register(adapter);
2379 /* INTx is not supported for VF */
2380 if (!be_physfn(adapter))
2384 /* INTx: only the first EQ is used */
2385 netdev->irq = adapter->pdev->irq;
2386 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2387 &adapter->eq_obj[0]);
2389 dev_err(&adapter->pdev->dev,
2390 "INTx request IRQ failed - err %d\n", status);
2394 adapter->isr_registered = true;
2398 static void be_irq_unregister(struct be_adapter *adapter)
2400 struct net_device *netdev = adapter->netdev;
2401 struct be_eq_obj *eqo;
2404 if (!adapter->isr_registered)
2408 if (!msix_enabled(adapter)) {
2409 free_irq(netdev->irq, &adapter->eq_obj[0]);
2414 for_all_evt_queues(adapter, eqo, i)
2415 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2418 adapter->isr_registered = false;
2421 static void be_rx_qs_destroy(struct be_adapter *adapter)
2423 struct be_queue_info *q;
2424 struct be_rx_obj *rxo;
2427 for_all_rx_queues(adapter, rxo, i) {
2430 be_cmd_rxq_destroy(adapter, q);
2431 /* After the rxq is invalidated, wait for a grace time
2432 * of 1ms for all dma to end and the flush compl to
2436 be_rx_cq_clean(rxo);
2438 be_queue_free(adapter, q);
2442 static int be_close(struct net_device *netdev)
2444 struct be_adapter *adapter = netdev_priv(netdev);
2445 struct be_eq_obj *eqo;
2448 be_roce_dev_close(adapter);
2450 for_all_evt_queues(adapter, eqo, i)
2451 napi_disable(&eqo->napi);
2453 be_async_mcc_disable(adapter);
2455 /* Wait for all pending tx completions to arrive so that
2456 * all tx skbs are freed.
2458 be_tx_compl_clean(adapter);
2460 be_rx_qs_destroy(adapter);
2462 for_all_evt_queues(adapter, eqo, i) {
2463 if (msix_enabled(adapter))
2464 synchronize_irq(be_msix_vec_get(adapter, eqo));
2466 synchronize_irq(netdev->irq);
2470 be_irq_unregister(adapter);
2475 static int be_rx_qs_create(struct be_adapter *adapter)
2477 struct be_rx_obj *rxo;
2481 for_all_rx_queues(adapter, rxo, i) {
2482 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2483 sizeof(struct be_eth_rx_d));
2488 /* The FW would like the default RXQ to be created first */
2489 rxo = default_rxo(adapter);
2490 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2491 adapter->if_handle, false, &rxo->rss_id);
2495 for_all_rss_queues(adapter, rxo, i) {
2496 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2497 rx_frag_size, adapter->if_handle,
2498 true, &rxo->rss_id);
2503 if (be_multi_rxq(adapter)) {
2504 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2505 for_all_rss_queues(adapter, rxo, i) {
2508 rsstable[j + i] = rxo->rss_id;
2511 rc = be_cmd_rss_config(adapter, rsstable, 128);
2516 /* First time posting */
2517 for_all_rx_queues(adapter, rxo, i)
2518 be_post_rx_frags(rxo, GFP_KERNEL);
2522 static int be_open(struct net_device *netdev)
2524 struct be_adapter *adapter = netdev_priv(netdev);
2525 struct be_eq_obj *eqo;
2526 struct be_rx_obj *rxo;
2527 struct be_tx_obj *txo;
2531 status = be_rx_qs_create(adapter);
2535 be_irq_register(adapter);
2537 for_all_rx_queues(adapter, rxo, i)
2538 be_cq_notify(adapter, rxo->cq.id, true, 0);
2540 for_all_tx_queues(adapter, txo, i)
2541 be_cq_notify(adapter, txo->cq.id, true, 0);
2543 be_async_mcc_enable(adapter);
2545 for_all_evt_queues(adapter, eqo, i) {
2546 napi_enable(&eqo->napi);
2547 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2550 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2552 be_link_status_update(adapter, link_status);
2554 be_roce_dev_open(adapter);
2557 be_close(adapter->netdev);
2561 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2563 struct be_dma_mem cmd;
2567 memset(mac, 0, ETH_ALEN);
2569 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2570 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2571 GFP_KERNEL | __GFP_ZERO);
2576 status = pci_write_config_dword(adapter->pdev,
2577 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2579 dev_err(&adapter->pdev->dev,
2580 "Could not enable Wake-on-lan\n");
2581 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2585 status = be_cmd_enable_magic_wol(adapter,
2586 adapter->netdev->dev_addr, &cmd);
2587 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2588 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2590 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2591 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2592 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2595 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2600 * Generate a seed MAC address from the PF MAC Address using jhash.
2601 * MAC Address for VFs are assigned incrementally starting from the seed.
2602 * These addresses are programmed in the ASIC by the PF and the VF driver
2603 * queries for the MAC address during its probe.
2605 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2610 struct be_vf_cfg *vf_cfg;
2612 be_vf_eth_addr_generate(adapter, mac);
2614 for_all_vfs(adapter, vf_cfg, vf) {
2615 if (lancer_chip(adapter)) {
2616 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2618 status = be_cmd_pmac_add(adapter, mac,
2620 &vf_cfg->pmac_id, vf + 1);
2624 dev_err(&adapter->pdev->dev,
2625 "Mac address assignment failed for VF %d\n", vf);
2627 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2634 static int be_vfs_mac_query(struct be_adapter *adapter)
2638 struct be_vf_cfg *vf_cfg;
2641 for_all_vfs(adapter, vf_cfg, vf) {
2642 be_cmd_get_mac_from_list(adapter, mac, &active,
2643 &vf_cfg->pmac_id, 0);
2645 status = be_cmd_mac_addr_query(adapter, mac, false,
2646 vf_cfg->if_handle, 0);
2649 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2654 static void be_vf_clear(struct be_adapter *adapter)
2656 struct be_vf_cfg *vf_cfg;
2659 if (be_find_vfs(adapter, ASSIGNED)) {
2660 dev_warn(&adapter->pdev->dev,
2661 "VFs are assigned to VMs: not disabling VFs\n");
2665 for_all_vfs(adapter, vf_cfg, vf) {
2666 if (lancer_chip(adapter))
2667 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2669 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2670 vf_cfg->pmac_id, vf + 1);
2672 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2674 pci_disable_sriov(adapter->pdev);
2676 kfree(adapter->vf_cfg);
2677 adapter->num_vfs = 0;
2680 static int be_clear(struct be_adapter *adapter)
2684 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2685 cancel_delayed_work_sync(&adapter->work);
2686 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2689 if (sriov_enabled(adapter))
2690 be_vf_clear(adapter);
2692 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2693 be_cmd_pmac_del(adapter, adapter->if_handle,
2694 adapter->pmac_id[i], 0);
2696 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2698 be_mcc_queues_destroy(adapter);
2699 be_rx_cqs_destroy(adapter);
2700 be_tx_queues_destroy(adapter);
2701 be_evt_queues_destroy(adapter);
2703 kfree(adapter->pmac_id);
2704 adapter->pmac_id = NULL;
2706 be_msix_disable(adapter);
2710 static int be_vfs_if_create(struct be_adapter *adapter)
2712 struct be_vf_cfg *vf_cfg;
2713 u32 cap_flags, en_flags, vf;
2716 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2717 BE_IF_FLAGS_MULTICAST;
2719 for_all_vfs(adapter, vf_cfg, vf) {
2720 if (!BE3_chip(adapter))
2721 be_cmd_get_profile_config(adapter, &cap_flags, vf + 1);
2723 /* If a FW profile exists, then cap_flags are updated */
2724 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2725 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2726 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2727 &vf_cfg->if_handle, vf + 1);
2735 static int be_vf_setup_init(struct be_adapter *adapter)
2737 struct be_vf_cfg *vf_cfg;
2740 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2742 if (!adapter->vf_cfg)
2745 for_all_vfs(adapter, vf_cfg, vf) {
2746 vf_cfg->if_handle = -1;
2747 vf_cfg->pmac_id = -1;
2752 static int be_vf_setup(struct be_adapter *adapter)
2754 struct be_vf_cfg *vf_cfg;
2755 u16 def_vlan, lnk_speed;
2756 int status, old_vfs, vf;
2757 struct device *dev = &adapter->pdev->dev;
2759 old_vfs = be_find_vfs(adapter, ENABLED);
2761 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2762 if (old_vfs != num_vfs)
2763 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2764 adapter->num_vfs = old_vfs;
2766 if (num_vfs > adapter->dev_num_vfs)
2767 dev_info(dev, "Device supports %d VFs and not %d\n",
2768 adapter->dev_num_vfs, num_vfs);
2769 adapter->num_vfs = min_t(u16, num_vfs, adapter->dev_num_vfs);
2771 status = pci_enable_sriov(adapter->pdev, num_vfs);
2773 dev_err(dev, "SRIOV enable failed\n");
2774 adapter->num_vfs = 0;
2779 status = be_vf_setup_init(adapter);
2784 for_all_vfs(adapter, vf_cfg, vf) {
2785 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2790 status = be_vfs_if_create(adapter);
2796 status = be_vfs_mac_query(adapter);
2800 status = be_vf_eth_addr_config(adapter);
2805 for_all_vfs(adapter, vf_cfg, vf) {
2806 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2807 * Allow full available bandwidth
2809 if (BE3_chip(adapter) && !old_vfs)
2810 be_cmd_set_qos(adapter, 1000, vf+1);
2812 status = be_cmd_link_status_query(adapter, &lnk_speed,
2815 vf_cfg->tx_rate = lnk_speed;
2817 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2818 vf + 1, vf_cfg->if_handle);
2821 vf_cfg->def_vid = def_vlan;
2823 be_cmd_enable_vf(adapter, vf + 1);
2827 dev_err(dev, "VF setup failed\n");
2828 be_vf_clear(adapter);
2832 static void be_setup_init(struct be_adapter *adapter)
2834 adapter->vlan_prio_bmap = 0xff;
2835 adapter->phy.link_speed = -1;
2836 adapter->if_handle = -1;
2837 adapter->be3_native = false;
2838 adapter->promiscuous = false;
2839 if (be_physfn(adapter))
2840 adapter->cmd_privileges = MAX_PRIVILEGES;
2842 adapter->cmd_privileges = MIN_PRIVILEGES;
2845 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2846 bool *active_mac, u32 *pmac_id)
2850 if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2851 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2852 if (!lancer_chip(adapter) && !be_physfn(adapter))
2855 *active_mac = false;
2860 if (lancer_chip(adapter)) {
2861 status = be_cmd_get_mac_from_list(adapter, mac,
2862 active_mac, pmac_id, 0);
2864 status = be_cmd_mac_addr_query(adapter, mac, false,
2865 if_handle, *pmac_id);
2867 } else if (be_physfn(adapter)) {
2868 /* For BE3, for PF get permanent MAC */
2869 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
2870 *active_mac = false;
2872 /* For BE3, for VF get soft MAC assigned by PF*/
2873 status = be_cmd_mac_addr_query(adapter, mac, false,
2880 static void be_get_resources(struct be_adapter *adapter)
2884 bool profile_present = false;
2886 if (!BEx_chip(adapter)) {
2887 status = be_cmd_get_func_config(adapter);
2889 profile_present = true;
2892 if (profile_present) {
2893 /* Sanity fixes for Lancer */
2894 adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
2896 adapter->max_vlans = min_t(u16, adapter->max_vlans,
2897 BE_NUM_VLANS_SUPPORTED);
2898 adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
2900 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
2902 adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
2904 adapter->max_event_queues = min_t(u16,
2905 adapter->max_event_queues,
2908 if (adapter->max_rss_queues &&
2909 adapter->max_rss_queues == adapter->max_rx_queues)
2910 adapter->max_rss_queues -= 1;
2912 if (adapter->max_event_queues < adapter->max_rss_queues)
2913 adapter->max_rss_queues = adapter->max_event_queues;
2916 if (be_physfn(adapter))
2917 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
2919 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
2921 if (adapter->function_mode & FLEX10_MODE)
2922 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
2924 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2926 adapter->max_mcast_mac = BE_MAX_MC;
2927 adapter->max_tx_queues = MAX_TX_QS;
2928 adapter->max_rss_queues = (adapter->be3_native) ?
2929 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2930 adapter->max_event_queues = BE3_MAX_RSS_QS;
2932 adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
2933 BE_IF_FLAGS_BROADCAST |
2934 BE_IF_FLAGS_MULTICAST |
2935 BE_IF_FLAGS_PASS_L3L4_ERRORS |
2936 BE_IF_FLAGS_MCAST_PROMISCUOUS |
2937 BE_IF_FLAGS_VLAN_PROMISCUOUS |
2938 BE_IF_FLAGS_PROMISCUOUS;
2940 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
2941 adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
2944 pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2946 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2948 if (BE3_chip(adapter))
2949 dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
2950 adapter->dev_num_vfs = dev_num_vfs;
2954 /* Routine to query per function resource limits */
2955 static int be_get_config(struct be_adapter *adapter)
2959 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
2960 &adapter->function_mode,
2961 &adapter->function_caps);
2965 be_get_resources(adapter);
2967 /* primary mac needs 1 pmac entry */
2968 adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
2969 sizeof(u32), GFP_KERNEL);
2970 if (!adapter->pmac_id) {
2979 static int be_setup(struct be_adapter *adapter)
2981 struct device *dev = &adapter->pdev->dev;
2988 be_setup_init(adapter);
2990 if (!lancer_chip(adapter))
2991 be_cmd_req_native_mode(adapter);
2993 status = be_get_config(adapter);
2997 be_msix_enable(adapter);
2999 status = be_evt_queues_create(adapter);
3003 status = be_tx_cqs_create(adapter);
3007 status = be_rx_cqs_create(adapter);
3011 status = be_mcc_queues_create(adapter);
3015 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3016 /* In UMC mode FW does not return right privileges.
3017 * Override with correct privilege equivalent to PF.
3019 if (be_is_mc(adapter))
3020 adapter->cmd_privileges = MAX_PRIVILEGES;
3022 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3023 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3025 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3026 en_flags |= BE_IF_FLAGS_RSS;
3028 en_flags = en_flags & adapter->if_cap_flags;
3030 status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
3031 &adapter->if_handle, 0);
3035 memset(mac, 0, ETH_ALEN);
3037 status = be_get_mac_addr(adapter, mac, adapter->if_handle,
3038 &active_mac, &adapter->pmac_id[0]);
3043 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3044 &adapter->pmac_id[0], 0);
3049 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3050 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3051 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3054 status = be_tx_qs_create(adapter);
3058 be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
3060 if (adapter->vlans_added)
3061 be_vid_config(adapter);
3063 be_set_rx_mode(adapter->netdev);
3065 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3067 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3068 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3071 if (be_physfn(adapter) && num_vfs) {
3072 if (adapter->dev_num_vfs)
3073 be_vf_setup(adapter);
3075 dev_warn(dev, "device doesn't support SRIOV\n");
3078 status = be_cmd_get_phy_info(adapter);
3079 if (!status && be_pause_supported(adapter))
3080 adapter->phy.fc_autoneg = 1;
3082 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3083 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3090 #ifdef CONFIG_NET_POLL_CONTROLLER
3091 static void be_netpoll(struct net_device *netdev)
3093 struct be_adapter *adapter = netdev_priv(netdev);
3094 struct be_eq_obj *eqo;
3097 for_all_evt_queues(adapter, eqo, i) {
3098 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3099 napi_schedule(&eqo->napi);
3106 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3107 char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3109 static bool be_flash_redboot(struct be_adapter *adapter,
3110 const u8 *p, u32 img_start, int image_size,
3117 crc_offset = hdr_size + img_start + image_size - 4;
3121 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3124 dev_err(&adapter->pdev->dev,
3125 "could not get crc from flash, not flashing redboot\n");
3129 /*update redboot only if crc does not match*/
3130 if (!memcmp(flashed_crc, p, 4))
3136 static bool phy_flashing_required(struct be_adapter *adapter)
3138 return (adapter->phy.phy_type == TN_8022 &&
3139 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3142 static bool is_comp_in_ufi(struct be_adapter *adapter,
3143 struct flash_section_info *fsec, int type)
3145 int i = 0, img_type = 0;
3146 struct flash_section_info_g2 *fsec_g2 = NULL;
3148 if (BE2_chip(adapter))
3149 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3151 for (i = 0; i < MAX_FLASH_COMP; i++) {
3153 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3155 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3157 if (img_type == type)
3164 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3166 const struct firmware *fw)
3168 struct flash_section_info *fsec = NULL;
3169 const u8 *p = fw->data;
3172 while (p < (fw->data + fw->size)) {
3173 fsec = (struct flash_section_info *)p;
3174 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3181 static int be_flash(struct be_adapter *adapter, const u8 *img,
3182 struct be_dma_mem *flash_cmd, int optype, int img_size)
3184 u32 total_bytes = 0, flash_op, num_bytes = 0;
3186 struct be_cmd_write_flashrom *req = flash_cmd->va;
3188 total_bytes = img_size;
3189 while (total_bytes) {
3190 num_bytes = min_t(u32, 32*1024, total_bytes);
3192 total_bytes -= num_bytes;
3195 if (optype == OPTYPE_PHY_FW)
3196 flash_op = FLASHROM_OPER_PHY_FLASH;
3198 flash_op = FLASHROM_OPER_FLASH;
3200 if (optype == OPTYPE_PHY_FW)
3201 flash_op = FLASHROM_OPER_PHY_SAVE;
3203 flash_op = FLASHROM_OPER_SAVE;
3206 memcpy(req->data_buf, img, num_bytes);
3208 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3209 flash_op, num_bytes);
3211 if (status == ILLEGAL_IOCTL_REQ &&
3212 optype == OPTYPE_PHY_FW)
3214 dev_err(&adapter->pdev->dev,
3215 "cmd to write to flash rom failed.\n");
3222 /* For BE2 and BE3 */
3223 static int be_flash_BEx(struct be_adapter *adapter,
3224 const struct firmware *fw,
3225 struct be_dma_mem *flash_cmd,
3229 int status = 0, i, filehdr_size = 0;
3230 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3231 const u8 *p = fw->data;
3232 const struct flash_comp *pflashcomp;
3233 int num_comp, redboot;
3234 struct flash_section_info *fsec = NULL;
3236 struct flash_comp gen3_flash_types[] = {
3237 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3238 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3239 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3240 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3241 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3242 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3243 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3244 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3245 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3246 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3247 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3248 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3249 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3250 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3251 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3252 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3253 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3254 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3255 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3256 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3259 struct flash_comp gen2_flash_types[] = {
3260 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3261 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3262 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3263 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3264 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3265 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3266 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3267 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3268 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3269 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3270 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3271 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3272 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3273 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3274 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3275 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3278 if (BE3_chip(adapter)) {
3279 pflashcomp = gen3_flash_types;
3280 filehdr_size = sizeof(struct flash_file_hdr_g3);
3281 num_comp = ARRAY_SIZE(gen3_flash_types);
3283 pflashcomp = gen2_flash_types;
3284 filehdr_size = sizeof(struct flash_file_hdr_g2);
3285 num_comp = ARRAY_SIZE(gen2_flash_types);
3288 /* Get flash section info*/
3289 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3291 dev_err(&adapter->pdev->dev,
3292 "Invalid Cookie. UFI corrupted ?\n");
3295 for (i = 0; i < num_comp; i++) {
3296 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3299 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3300 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3303 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3304 !phy_flashing_required(adapter))
3307 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3308 redboot = be_flash_redboot(adapter, fw->data,
3309 pflashcomp[i].offset, pflashcomp[i].size,
3310 filehdr_size + img_hdrs_size);
3316 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3317 if (p + pflashcomp[i].size > fw->data + fw->size)
3320 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3321 pflashcomp[i].size);
3323 dev_err(&adapter->pdev->dev,
3324 "Flashing section type %d failed.\n",
3325 pflashcomp[i].img_type);
3332 static int be_flash_skyhawk(struct be_adapter *adapter,
3333 const struct firmware *fw,
3334 struct be_dma_mem *flash_cmd, int num_of_images)
3336 int status = 0, i, filehdr_size = 0;
3337 int img_offset, img_size, img_optype, redboot;
3338 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3339 const u8 *p = fw->data;
3340 struct flash_section_info *fsec = NULL;
3342 filehdr_size = sizeof(struct flash_file_hdr_g3);
3343 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3345 dev_err(&adapter->pdev->dev,
3346 "Invalid Cookie. UFI corrupted ?\n");
3350 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3351 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3352 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3354 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3355 case IMAGE_FIRMWARE_iSCSI:
3356 img_optype = OPTYPE_ISCSI_ACTIVE;
3358 case IMAGE_BOOT_CODE:
3359 img_optype = OPTYPE_REDBOOT;
3361 case IMAGE_OPTION_ROM_ISCSI:
3362 img_optype = OPTYPE_BIOS;
3364 case IMAGE_OPTION_ROM_PXE:
3365 img_optype = OPTYPE_PXE_BIOS;
3367 case IMAGE_OPTION_ROM_FCoE:
3368 img_optype = OPTYPE_FCOE_BIOS;
3370 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3371 img_optype = OPTYPE_ISCSI_BACKUP;
3374 img_optype = OPTYPE_NCSI_FW;
3380 if (img_optype == OPTYPE_REDBOOT) {
3381 redboot = be_flash_redboot(adapter, fw->data,
3382 img_offset, img_size,
3383 filehdr_size + img_hdrs_size);
3389 p += filehdr_size + img_offset + img_hdrs_size;
3390 if (p + img_size > fw->data + fw->size)
3393 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3395 dev_err(&adapter->pdev->dev,
3396 "Flashing section type %d failed.\n",
3397 fsec->fsec_entry[i].type);
3404 static int lancer_wait_idle(struct be_adapter *adapter)
3406 #define SLIPORT_IDLE_TIMEOUT 30
3410 for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3411 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3412 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3418 if (i == SLIPORT_IDLE_TIMEOUT)
3424 static int lancer_fw_reset(struct be_adapter *adapter)
3428 status = lancer_wait_idle(adapter);
3432 iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3433 PHYSDEV_CONTROL_OFFSET);
3438 static int lancer_fw_download(struct be_adapter *adapter,
3439 const struct firmware *fw)
3441 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3442 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3443 struct be_dma_mem flash_cmd;
3444 const u8 *data_ptr = NULL;
3445 u8 *dest_image_ptr = NULL;
3446 size_t image_size = 0;
3448 u32 data_written = 0;
3454 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3455 dev_err(&adapter->pdev->dev,
3456 "FW Image not properly aligned. "
3457 "Length must be 4 byte aligned.\n");
3459 goto lancer_fw_exit;
3462 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3463 + LANCER_FW_DOWNLOAD_CHUNK;
3464 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3465 &flash_cmd.dma, GFP_KERNEL);
3466 if (!flash_cmd.va) {
3468 goto lancer_fw_exit;
3471 dest_image_ptr = flash_cmd.va +
3472 sizeof(struct lancer_cmd_req_write_object);
3473 image_size = fw->size;
3474 data_ptr = fw->data;
3476 while (image_size) {
3477 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3479 /* Copy the image chunk content. */
3480 memcpy(dest_image_ptr, data_ptr, chunk_size);
3482 status = lancer_cmd_write_object(adapter, &flash_cmd,
3484 LANCER_FW_DOWNLOAD_LOCATION,
3485 &data_written, &change_status,
3490 offset += data_written;
3491 data_ptr += data_written;
3492 image_size -= data_written;
3496 /* Commit the FW written */
3497 status = lancer_cmd_write_object(adapter, &flash_cmd,
3499 LANCER_FW_DOWNLOAD_LOCATION,
3500 &data_written, &change_status,
3504 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3507 dev_err(&adapter->pdev->dev,
3508 "Firmware load error. "
3509 "Status code: 0x%x Additional Status: 0x%x\n",
3510 status, add_status);
3511 goto lancer_fw_exit;
3514 if (change_status == LANCER_FW_RESET_NEEDED) {
3515 status = lancer_fw_reset(adapter);
3517 dev_err(&adapter->pdev->dev,
3518 "Adapter busy for FW reset.\n"
3519 "New FW will not be active.\n");
3520 goto lancer_fw_exit;
3522 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3523 dev_err(&adapter->pdev->dev,
3524 "System reboot required for new FW"
3528 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3536 static int be_get_ufi_type(struct be_adapter *adapter,
3537 struct flash_file_hdr_g2 *fhdr)
3540 goto be_get_ufi_exit;
3542 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3544 else if (BE3_chip(adapter) && fhdr->build[0] == '3')
3546 else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3550 dev_err(&adapter->pdev->dev,
3551 "UFI and Interface are not compatible for flashing\n");
3555 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3557 struct flash_file_hdr_g2 *fhdr;
3558 struct flash_file_hdr_g3 *fhdr3;
3559 struct image_hdr *img_hdr_ptr = NULL;
3560 struct be_dma_mem flash_cmd;
3562 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3564 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3565 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3566 &flash_cmd.dma, GFP_KERNEL);
3567 if (!flash_cmd.va) {
3573 fhdr = (struct flash_file_hdr_g2 *)p;
3575 ufi_type = be_get_ufi_type(adapter, fhdr);
3577 fhdr3 = (struct flash_file_hdr_g3 *)fw->data;
3578 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3579 for (i = 0; i < num_imgs; i++) {
3580 img_hdr_ptr = (struct image_hdr *)(fw->data +
3581 (sizeof(struct flash_file_hdr_g3) +
3582 i * sizeof(struct image_hdr)));
3583 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3584 if (ufi_type == UFI_TYPE4)
3585 status = be_flash_skyhawk(adapter, fw,
3586 &flash_cmd, num_imgs);
3587 else if (ufi_type == UFI_TYPE3)
3588 status = be_flash_BEx(adapter, fw, &flash_cmd,
3593 if (ufi_type == UFI_TYPE2)
3594 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3595 else if (ufi_type == -1)
3598 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3601 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3605 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3611 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3613 const struct firmware *fw;
3616 if (!netif_running(adapter->netdev)) {
3617 dev_err(&adapter->pdev->dev,
3618 "Firmware load not allowed (interface is down)\n");
3622 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3626 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3628 if (lancer_chip(adapter))
3629 status = lancer_fw_download(adapter, fw);
3631 status = be_fw_download(adapter, fw);
3634 release_firmware(fw);
3638 static const struct net_device_ops be_netdev_ops = {
3639 .ndo_open = be_open,
3640 .ndo_stop = be_close,
3641 .ndo_start_xmit = be_xmit,
3642 .ndo_set_rx_mode = be_set_rx_mode,
3643 .ndo_set_mac_address = be_mac_addr_set,
3644 .ndo_change_mtu = be_change_mtu,
3645 .ndo_get_stats64 = be_get_stats64,
3646 .ndo_validate_addr = eth_validate_addr,
3647 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3648 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3649 .ndo_set_vf_mac = be_set_vf_mac,
3650 .ndo_set_vf_vlan = be_set_vf_vlan,
3651 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3652 .ndo_get_vf_config = be_get_vf_config,
3653 #ifdef CONFIG_NET_POLL_CONTROLLER
3654 .ndo_poll_controller = be_netpoll,
3658 static void be_netdev_init(struct net_device *netdev)
3660 struct be_adapter *adapter = netdev_priv(netdev);
3661 struct be_eq_obj *eqo;
3664 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3665 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3667 if (be_multi_rxq(adapter))
3668 netdev->hw_features |= NETIF_F_RXHASH;
3670 netdev->features |= netdev->hw_features |
3671 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3673 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3674 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3676 netdev->priv_flags |= IFF_UNICAST_FLT;
3678 netdev->flags |= IFF_MULTICAST;
3680 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3682 netdev->netdev_ops = &be_netdev_ops;
3684 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3686 for_all_evt_queues(adapter, eqo, i)
3687 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3690 static void be_unmap_pci_bars(struct be_adapter *adapter)
3693 pci_iounmap(adapter->pdev, adapter->csr);
3695 pci_iounmap(adapter->pdev, adapter->db);
3698 static int db_bar(struct be_adapter *adapter)
3700 if (lancer_chip(adapter) || !be_physfn(adapter))
3706 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3708 if (skyhawk_chip(adapter)) {
3709 adapter->roce_db.size = 4096;
3710 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3712 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3718 static int be_map_pci_bars(struct be_adapter *adapter)
3723 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3724 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3725 SLI_INTF_IF_TYPE_SHIFT;
3727 if (BEx_chip(adapter) && be_physfn(adapter)) {
3728 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3729 if (adapter->csr == NULL)
3733 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3738 be_roce_map_pci_bars(adapter);
3742 be_unmap_pci_bars(adapter);
3746 static void be_ctrl_cleanup(struct be_adapter *adapter)
3748 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3750 be_unmap_pci_bars(adapter);
3753 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3756 mem = &adapter->rx_filter;
3758 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3762 static int be_ctrl_init(struct be_adapter *adapter)
3764 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3765 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3766 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3770 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3771 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3772 SLI_INTF_FAMILY_SHIFT;
3773 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3775 status = be_map_pci_bars(adapter);
3779 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3780 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3781 mbox_mem_alloc->size,
3782 &mbox_mem_alloc->dma,
3784 if (!mbox_mem_alloc->va) {
3786 goto unmap_pci_bars;
3788 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3789 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3790 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3791 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3793 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3794 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3796 GFP_KERNEL | __GFP_ZERO);
3797 if (rx_filter->va == NULL) {
3802 mutex_init(&adapter->mbox_lock);
3803 spin_lock_init(&adapter->mcc_lock);
3804 spin_lock_init(&adapter->mcc_cq_lock);
3806 init_completion(&adapter->flash_compl);
3807 pci_save_state(adapter->pdev);
3811 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3812 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3815 be_unmap_pci_bars(adapter);
3821 static void be_stats_cleanup(struct be_adapter *adapter)
3823 struct be_dma_mem *cmd = &adapter->stats_cmd;
3826 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3830 static int be_stats_init(struct be_adapter *adapter)
3832 struct be_dma_mem *cmd = &adapter->stats_cmd;
3834 if (lancer_chip(adapter))
3835 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3836 else if (BE2_chip(adapter))
3837 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3839 /* BE3 and Skyhawk */
3840 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3842 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3843 GFP_KERNEL | __GFP_ZERO);
3844 if (cmd->va == NULL)
3849 static void be_remove(struct pci_dev *pdev)
3851 struct be_adapter *adapter = pci_get_drvdata(pdev);
3856 be_roce_dev_remove(adapter);
3857 be_intr_set(adapter, false);
3859 cancel_delayed_work_sync(&adapter->func_recovery_work);
3861 unregister_netdev(adapter->netdev);
3865 /* tell fw we're done with firing cmds */
3866 be_cmd_fw_clean(adapter);
3868 be_stats_cleanup(adapter);
3870 be_ctrl_cleanup(adapter);
3872 pci_disable_pcie_error_reporting(pdev);
3874 pci_set_drvdata(pdev, NULL);
3875 pci_release_regions(pdev);
3876 pci_disable_device(pdev);
3878 free_netdev(adapter->netdev);
3881 bool be_is_wol_supported(struct be_adapter *adapter)
3883 return ((adapter->wol_cap & BE_WOL_CAP) &&
3884 !be_is_wol_excluded(adapter)) ? true : false;
3887 u32 be_get_fw_log_level(struct be_adapter *adapter)
3889 struct be_dma_mem extfat_cmd;
3890 struct be_fat_conf_params *cfgs;
3895 if (lancer_chip(adapter))
3898 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3899 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3900 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3903 if (!extfat_cmd.va) {
3904 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3909 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3911 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3912 sizeof(struct be_cmd_resp_hdr));
3913 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
3914 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3915 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3918 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3924 static int be_get_initial_config(struct be_adapter *adapter)
3929 status = be_cmd_get_cntl_attributes(adapter);
3933 status = be_cmd_get_acpi_wol_cap(adapter);
3935 /* in case of a failure to get wol capabillities
3936 * check the exclusion list to determine WOL capability */
3937 if (!be_is_wol_excluded(adapter))
3938 adapter->wol_cap |= BE_WOL_CAP;
3941 if (be_is_wol_supported(adapter))
3942 adapter->wol = true;
3944 /* Must be a power of 2 or else MODULO will BUG_ON */
3945 adapter->be_get_temp_freq = 64;
3947 level = be_get_fw_log_level(adapter);
3948 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3953 static int lancer_recover_func(struct be_adapter *adapter)
3957 status = lancer_test_and_set_rdy_state(adapter);
3961 if (netif_running(adapter->netdev))
3962 be_close(adapter->netdev);
3966 adapter->hw_error = false;
3967 adapter->fw_timeout = false;
3969 status = be_setup(adapter);
3973 if (netif_running(adapter->netdev)) {
3974 status = be_open(adapter->netdev);
3979 dev_err(&adapter->pdev->dev,
3980 "Adapter SLIPORT recovery succeeded\n");
3983 if (adapter->eeh_error)
3984 dev_err(&adapter->pdev->dev,
3985 "Adapter SLIPORT recovery failed\n");
3990 static void be_func_recovery_task(struct work_struct *work)
3992 struct be_adapter *adapter =
3993 container_of(work, struct be_adapter, func_recovery_work.work);
3996 be_detect_error(adapter);
3998 if (adapter->hw_error && lancer_chip(adapter)) {
4000 if (adapter->eeh_error)
4004 netif_device_detach(adapter->netdev);
4007 status = lancer_recover_func(adapter);
4010 netif_device_attach(adapter->netdev);
4014 schedule_delayed_work(&adapter->func_recovery_work,
4015 msecs_to_jiffies(1000));
4018 static void be_worker(struct work_struct *work)
4020 struct be_adapter *adapter =
4021 container_of(work, struct be_adapter, work.work);
4022 struct be_rx_obj *rxo;
4023 struct be_eq_obj *eqo;
4026 /* when interrupts are not yet enabled, just reap any pending
4027 * mcc completions */
4028 if (!netif_running(adapter->netdev)) {
4030 be_process_mcc(adapter);
4035 if (!adapter->stats_cmd_sent) {
4036 if (lancer_chip(adapter))
4037 lancer_cmd_get_pport_stats(adapter,
4038 &adapter->stats_cmd);
4040 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4043 if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4044 be_cmd_get_die_temperature(adapter);
4046 for_all_rx_queues(adapter, rxo, i) {
4047 if (rxo->rx_post_starved) {
4048 rxo->rx_post_starved = false;
4049 be_post_rx_frags(rxo, GFP_KERNEL);
4053 for_all_evt_queues(adapter, eqo, i)
4054 be_eqd_update(adapter, eqo);
4057 adapter->work_counter++;
4058 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4061 static bool be_reset_required(struct be_adapter *adapter)
4063 return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
4066 static char *mc_name(struct be_adapter *adapter)
4068 if (adapter->function_mode & FLEX10_MODE)
4070 else if (adapter->function_mode & VNIC_MODE)
4072 else if (adapter->function_mode & UMC_ENABLED)
4078 static inline char *func_name(struct be_adapter *adapter)
4080 return be_physfn(adapter) ? "PF" : "VF";
4083 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4086 struct be_adapter *adapter;
4087 struct net_device *netdev;
4090 status = pci_enable_device(pdev);
4094 status = pci_request_regions(pdev, DRV_NAME);
4097 pci_set_master(pdev);
4099 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4100 if (netdev == NULL) {
4104 adapter = netdev_priv(netdev);
4105 adapter->pdev = pdev;
4106 pci_set_drvdata(pdev, adapter);
4107 adapter->netdev = netdev;
4108 SET_NETDEV_DEV(netdev, &pdev->dev);
4110 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4112 netdev->features |= NETIF_F_HIGHDMA;
4114 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4116 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4121 status = pci_enable_pcie_error_reporting(pdev);
4123 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
4125 status = be_ctrl_init(adapter);
4129 /* sync up with fw's ready state */
4130 if (be_physfn(adapter)) {
4131 status = be_fw_wait_ready(adapter);
4136 /* tell fw we're ready to fire cmds */
4137 status = be_cmd_fw_init(adapter);
4141 if (be_reset_required(adapter)) {
4142 status = be_cmd_reset_function(adapter);
4147 /* Wait for interrupts to quiesce after an FLR */
4150 /* Allow interrupts for other ULPs running on NIC function */
4151 be_intr_set(adapter, true);
4153 status = be_stats_init(adapter);
4157 status = be_get_initial_config(adapter);
4161 INIT_DELAYED_WORK(&adapter->work, be_worker);
4162 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4163 adapter->rx_fc = adapter->tx_fc = true;
4165 status = be_setup(adapter);
4169 be_netdev_init(netdev);
4170 status = register_netdev(netdev);
4174 be_roce_dev_add(adapter);
4176 schedule_delayed_work(&adapter->func_recovery_work,
4177 msecs_to_jiffies(1000));
4179 be_cmd_query_port_name(adapter, &port_name);
4181 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4182 func_name(adapter), mc_name(adapter), port_name);
4189 be_stats_cleanup(adapter);
4191 be_ctrl_cleanup(adapter);
4193 free_netdev(netdev);
4194 pci_set_drvdata(pdev, NULL);
4196 pci_release_regions(pdev);
4198 pci_disable_device(pdev);
4200 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4204 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4206 struct be_adapter *adapter = pci_get_drvdata(pdev);
4207 struct net_device *netdev = adapter->netdev;
4210 be_setup_wol(adapter, true);
4212 cancel_delayed_work_sync(&adapter->func_recovery_work);
4214 netif_device_detach(netdev);
4215 if (netif_running(netdev)) {
4222 pci_save_state(pdev);
4223 pci_disable_device(pdev);
4224 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4228 static int be_resume(struct pci_dev *pdev)
4231 struct be_adapter *adapter = pci_get_drvdata(pdev);
4232 struct net_device *netdev = adapter->netdev;
4234 netif_device_detach(netdev);
4236 status = pci_enable_device(pdev);
4240 pci_set_power_state(pdev, 0);
4241 pci_restore_state(pdev);
4243 /* tell fw we're ready to fire cmds */
4244 status = be_cmd_fw_init(adapter);
4249 if (netif_running(netdev)) {
4255 schedule_delayed_work(&adapter->func_recovery_work,
4256 msecs_to_jiffies(1000));
4257 netif_device_attach(netdev);
4260 be_setup_wol(adapter, false);
4266 * An FLR will stop BE from DMAing any data.
4268 static void be_shutdown(struct pci_dev *pdev)
4270 struct be_adapter *adapter = pci_get_drvdata(pdev);
4275 cancel_delayed_work_sync(&adapter->work);
4276 cancel_delayed_work_sync(&adapter->func_recovery_work);
4278 netif_device_detach(adapter->netdev);
4280 be_cmd_reset_function(adapter);
4282 pci_disable_device(pdev);
4285 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4286 pci_channel_state_t state)
4288 struct be_adapter *adapter = pci_get_drvdata(pdev);
4289 struct net_device *netdev = adapter->netdev;
4291 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4293 adapter->eeh_error = true;
4295 cancel_delayed_work_sync(&adapter->func_recovery_work);
4298 netif_device_detach(netdev);
4301 if (netif_running(netdev)) {
4308 if (state == pci_channel_io_perm_failure)
4309 return PCI_ERS_RESULT_DISCONNECT;
4311 pci_disable_device(pdev);
4313 /* The error could cause the FW to trigger a flash debug dump.
4314 * Resetting the card while flash dump is in progress
4315 * can cause it not to recover; wait for it to finish.
4316 * Wait only for first function as it is needed only once per
4319 if (pdev->devfn == 0)
4322 return PCI_ERS_RESULT_NEED_RESET;
4325 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4327 struct be_adapter *adapter = pci_get_drvdata(pdev);
4330 dev_info(&adapter->pdev->dev, "EEH reset\n");
4331 be_clear_all_error(adapter);
4333 status = pci_enable_device(pdev);
4335 return PCI_ERS_RESULT_DISCONNECT;
4337 pci_set_master(pdev);
4338 pci_set_power_state(pdev, 0);
4339 pci_restore_state(pdev);
4341 /* Check if card is ok and fw is ready */
4342 dev_info(&adapter->pdev->dev,
4343 "Waiting for FW to be ready after EEH reset\n");
4344 status = be_fw_wait_ready(adapter);
4346 return PCI_ERS_RESULT_DISCONNECT;
4348 pci_cleanup_aer_uncorrect_error_status(pdev);
4349 return PCI_ERS_RESULT_RECOVERED;
4352 static void be_eeh_resume(struct pci_dev *pdev)
4355 struct be_adapter *adapter = pci_get_drvdata(pdev);
4356 struct net_device *netdev = adapter->netdev;
4358 dev_info(&adapter->pdev->dev, "EEH resume\n");
4360 pci_save_state(pdev);
4362 /* tell fw we're ready to fire cmds */
4363 status = be_cmd_fw_init(adapter);
4367 status = be_cmd_reset_function(adapter);
4371 status = be_setup(adapter);
4375 if (netif_running(netdev)) {
4376 status = be_open(netdev);
4381 schedule_delayed_work(&adapter->func_recovery_work,
4382 msecs_to_jiffies(1000));
4383 netif_device_attach(netdev);
4386 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4389 static const struct pci_error_handlers be_eeh_handlers = {
4390 .error_detected = be_eeh_err_detected,
4391 .slot_reset = be_eeh_reset,
4392 .resume = be_eeh_resume,
4395 static struct pci_driver be_driver = {
4397 .id_table = be_dev_ids,
4399 .remove = be_remove,
4400 .suspend = be_suspend,
4401 .resume = be_resume,
4402 .shutdown = be_shutdown,
4403 .err_handler = &be_eeh_handlers
4406 static int __init be_init_module(void)
4408 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4409 rx_frag_size != 2048) {
4410 printk(KERN_WARNING DRV_NAME
4411 " : Module param rx_frag_size must be 2048/4096/8192."
4413 rx_frag_size = 2048;
4416 return pci_register_driver(&be_driver);
4418 module_init(be_init_module);
4420 static void __exit be_exit_module(void)
4422 pci_unregister_driver(&be_driver);
4424 module_exit(be_exit_module);