2 * Copyright (C) 2005 - 2011 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>
24 MODULE_VERSION(DRV_VER);
25 MODULE_DEVICE_TABLE(pci, be_dev_ids);
26 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
27 MODULE_AUTHOR("ServerEngines Corporation");
28 MODULE_LICENSE("GPL");
30 static ushort rx_frag_size = 2048;
31 static unsigned int num_vfs;
32 module_param(rx_frag_size, ushort, S_IRUGO);
33 module_param(num_vfs, uint, S_IRUGO);
34 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
35 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
37 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
38 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
39 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
40 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
41 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
42 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
43 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
46 MODULE_DEVICE_TABLE(pci, be_dev_ids);
47 /* UE Status Low CSR */
48 static const char * const ue_status_low_desc[] = {
82 /* UE Status High CSR */
83 static const char * const ue_status_hi_desc[] = {
118 /* Is BE in a multi-channel mode */
119 static inline bool be_is_mc(struct be_adapter *adapter) {
120 return (adapter->function_mode & FLEX10_MODE ||
121 adapter->function_mode & VNIC_MODE ||
122 adapter->function_mode & UMC_ENABLED);
125 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
127 struct be_dma_mem *mem = &q->dma_mem;
129 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
133 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
134 u16 len, u16 entry_size)
136 struct be_dma_mem *mem = &q->dma_mem;
138 memset(q, 0, sizeof(*q));
140 q->entry_size = entry_size;
141 mem->size = len * entry_size;
142 mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
146 memset(mem->va, 0, mem->size);
150 static void be_intr_set(struct be_adapter *adapter, bool enable)
154 if (adapter->eeh_err)
157 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
159 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
161 if (!enabled && enable)
162 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
163 else if (enabled && !enable)
164 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
168 pci_write_config_dword(adapter->pdev,
169 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
172 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
175 val |= qid & DB_RQ_RING_ID_MASK;
176 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
179 iowrite32(val, adapter->db + DB_RQ_OFFSET);
182 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
185 val |= qid & DB_TXULP_RING_ID_MASK;
186 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
189 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
192 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
193 bool arm, bool clear_int, u16 num_popped)
196 val |= qid & DB_EQ_RING_ID_MASK;
197 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
198 DB_EQ_RING_ID_EXT_MASK_SHIFT);
200 if (adapter->eeh_err)
204 val |= 1 << DB_EQ_REARM_SHIFT;
206 val |= 1 << DB_EQ_CLR_SHIFT;
207 val |= 1 << DB_EQ_EVNT_SHIFT;
208 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
209 iowrite32(val, adapter->db + DB_EQ_OFFSET);
212 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
215 val |= qid & DB_CQ_RING_ID_MASK;
216 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
217 DB_CQ_RING_ID_EXT_MASK_SHIFT);
219 if (adapter->eeh_err)
223 val |= 1 << DB_CQ_REARM_SHIFT;
224 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
225 iowrite32(val, adapter->db + DB_CQ_OFFSET);
228 static int be_mac_addr_set(struct net_device *netdev, void *p)
230 struct be_adapter *adapter = netdev_priv(netdev);
231 struct sockaddr *addr = p;
233 u8 current_mac[ETH_ALEN];
234 u32 pmac_id = adapter->pmac_id;
236 if (!is_valid_ether_addr(addr->sa_data))
237 return -EADDRNOTAVAIL;
239 status = be_cmd_mac_addr_query(adapter, current_mac,
240 MAC_ADDRESS_TYPE_NETWORK, false,
241 adapter->if_handle, 0);
245 if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
246 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
247 adapter->if_handle, &adapter->pmac_id, 0);
251 be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
253 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
256 dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
260 static void populate_be2_stats(struct be_adapter *adapter)
262 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
263 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
264 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
265 struct be_port_rxf_stats_v0 *port_stats =
266 &rxf_stats->port[adapter->port_num];
267 struct be_drv_stats *drvs = &adapter->drv_stats;
269 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
270 drvs->rx_pause_frames = port_stats->rx_pause_frames;
271 drvs->rx_crc_errors = port_stats->rx_crc_errors;
272 drvs->rx_control_frames = port_stats->rx_control_frames;
273 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
274 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
275 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
276 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
277 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
278 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
279 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
280 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
281 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
282 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
283 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
284 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
285 drvs->rx_dropped_header_too_small =
286 port_stats->rx_dropped_header_too_small;
287 drvs->rx_address_match_errors = port_stats->rx_address_match_errors;
288 drvs->rx_alignment_symbol_errors =
289 port_stats->rx_alignment_symbol_errors;
291 drvs->tx_pauseframes = port_stats->tx_pauseframes;
292 drvs->tx_controlframes = port_stats->tx_controlframes;
294 if (adapter->port_num)
295 drvs->jabber_events = rxf_stats->port1_jabber_events;
297 drvs->jabber_events = rxf_stats->port0_jabber_events;
298 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
299 drvs->rx_drops_no_txpb = rxf_stats->rx_drops_no_txpb;
300 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
301 drvs->rx_drops_invalid_ring = rxf_stats->rx_drops_invalid_ring;
302 drvs->forwarded_packets = rxf_stats->forwarded_packets;
303 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
304 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
305 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
306 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
309 static void populate_be3_stats(struct be_adapter *adapter)
311 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
312 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
313 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
314 struct be_port_rxf_stats_v1 *port_stats =
315 &rxf_stats->port[adapter->port_num];
316 struct be_drv_stats *drvs = &adapter->drv_stats;
318 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
319 drvs->rx_pause_frames = port_stats->rx_pause_frames;
320 drvs->rx_crc_errors = port_stats->rx_crc_errors;
321 drvs->rx_control_frames = port_stats->rx_control_frames;
322 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
323 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
324 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
325 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
326 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
327 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
328 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
329 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
330 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
331 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
332 drvs->rx_dropped_header_too_small =
333 port_stats->rx_dropped_header_too_small;
334 drvs->rx_input_fifo_overflow_drop =
335 port_stats->rx_input_fifo_overflow_drop;
336 drvs->rx_address_match_errors = port_stats->rx_address_match_errors;
337 drvs->rx_alignment_symbol_errors =
338 port_stats->rx_alignment_symbol_errors;
339 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
340 drvs->tx_pauseframes = port_stats->tx_pauseframes;
341 drvs->tx_controlframes = port_stats->tx_controlframes;
342 drvs->jabber_events = port_stats->jabber_events;
343 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
344 drvs->rx_drops_no_txpb = rxf_stats->rx_drops_no_txpb;
345 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
346 drvs->rx_drops_invalid_ring = rxf_stats->rx_drops_invalid_ring;
347 drvs->forwarded_packets = rxf_stats->forwarded_packets;
348 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
349 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
350 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
351 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
354 static void populate_lancer_stats(struct be_adapter *adapter)
357 struct be_drv_stats *drvs = &adapter->drv_stats;
358 struct lancer_pport_stats *pport_stats =
359 pport_stats_from_cmd(adapter);
361 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
362 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
363 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
364 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
365 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
366 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
367 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
368 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
369 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
370 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
371 drvs->rx_dropped_tcp_length =
372 pport_stats->rx_dropped_invalid_tcp_length;
373 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
374 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
375 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
376 drvs->rx_dropped_header_too_small =
377 pport_stats->rx_dropped_header_too_small;
378 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
379 drvs->rx_address_match_errors = pport_stats->rx_address_match_errors;
380 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
381 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
382 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
383 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
384 drvs->jabber_events = pport_stats->rx_jabbers;
385 drvs->rx_drops_invalid_ring = pport_stats->rx_drops_invalid_queue;
386 drvs->forwarded_packets = pport_stats->num_forwards_lo;
387 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
388 drvs->rx_drops_too_many_frags =
389 pport_stats->rx_drops_too_many_frags_lo;
392 static void accumulate_16bit_val(u32 *acc, u16 val)
394 #define lo(x) (x & 0xFFFF)
395 #define hi(x) (x & 0xFFFF0000)
396 bool wrapped = val < lo(*acc);
397 u32 newacc = hi(*acc) + val;
401 ACCESS_ONCE(*acc) = newacc;
404 void be_parse_stats(struct be_adapter *adapter)
406 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
407 struct be_rx_obj *rxo;
410 if (adapter->generation == BE_GEN3) {
411 if (lancer_chip(adapter))
412 populate_lancer_stats(adapter);
414 populate_be3_stats(adapter);
416 populate_be2_stats(adapter);
419 /* as erx_v1 is longer than v0, ok to use v1 defn for v0 access */
420 for_all_rx_queues(adapter, rxo, i) {
421 /* below erx HW counter can actually wrap around after
422 * 65535. Driver accumulates a 32-bit value
424 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
425 (u16)erx->rx_drops_no_fragments[rxo->q.id]);
429 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
430 struct rtnl_link_stats64 *stats)
432 struct be_adapter *adapter = netdev_priv(netdev);
433 struct be_drv_stats *drvs = &adapter->drv_stats;
434 struct be_rx_obj *rxo;
435 struct be_tx_obj *txo;
440 for_all_rx_queues(adapter, rxo, i) {
441 const struct be_rx_stats *rx_stats = rx_stats(rxo);
443 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
444 pkts = rx_stats(rxo)->rx_pkts;
445 bytes = rx_stats(rxo)->rx_bytes;
446 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
447 stats->rx_packets += pkts;
448 stats->rx_bytes += bytes;
449 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
450 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
451 rx_stats(rxo)->rx_drops_no_frags;
454 for_all_tx_queues(adapter, txo, i) {
455 const struct be_tx_stats *tx_stats = tx_stats(txo);
457 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
458 pkts = tx_stats(txo)->tx_pkts;
459 bytes = tx_stats(txo)->tx_bytes;
460 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
461 stats->tx_packets += pkts;
462 stats->tx_bytes += bytes;
465 /* bad pkts received */
466 stats->rx_errors = drvs->rx_crc_errors +
467 drvs->rx_alignment_symbol_errors +
468 drvs->rx_in_range_errors +
469 drvs->rx_out_range_errors +
470 drvs->rx_frame_too_long +
471 drvs->rx_dropped_too_small +
472 drvs->rx_dropped_too_short +
473 drvs->rx_dropped_header_too_small +
474 drvs->rx_dropped_tcp_length +
475 drvs->rx_dropped_runt;
477 /* detailed rx errors */
478 stats->rx_length_errors = drvs->rx_in_range_errors +
479 drvs->rx_out_range_errors +
480 drvs->rx_frame_too_long;
482 stats->rx_crc_errors = drvs->rx_crc_errors;
484 /* frame alignment errors */
485 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
487 /* receiver fifo overrun */
488 /* drops_no_pbuf is no per i/f, it's per BE card */
489 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
490 drvs->rx_input_fifo_overflow_drop +
491 drvs->rx_drops_no_pbuf;
495 void be_link_status_update(struct be_adapter *adapter, u32 link_status)
497 struct net_device *netdev = adapter->netdev;
499 /* when link status changes, link speed must be re-queried from card */
500 adapter->link_speed = -1;
501 if ((link_status & LINK_STATUS_MASK) == LINK_UP) {
502 netif_carrier_on(netdev);
503 dev_info(&adapter->pdev->dev, "%s: Link up\n", netdev->name);
505 netif_carrier_off(netdev);
506 dev_info(&adapter->pdev->dev, "%s: Link down\n", netdev->name);
510 static void be_tx_stats_update(struct be_tx_obj *txo,
511 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
513 struct be_tx_stats *stats = tx_stats(txo);
515 u64_stats_update_begin(&stats->sync);
517 stats->tx_wrbs += wrb_cnt;
518 stats->tx_bytes += copied;
519 stats->tx_pkts += (gso_segs ? gso_segs : 1);
522 u64_stats_update_end(&stats->sync);
525 /* Determine number of WRB entries needed to xmit data in an skb */
526 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
529 int cnt = (skb->len > skb->data_len);
531 cnt += skb_shinfo(skb)->nr_frags;
533 /* to account for hdr wrb */
535 if (lancer_chip(adapter) || !(cnt & 1)) {
538 /* add a dummy to make it an even num */
542 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
546 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
548 wrb->frag_pa_hi = upper_32_bits(addr);
549 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
550 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
553 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
554 struct sk_buff *skb, u32 wrb_cnt, u32 len)
559 memset(hdr, 0, sizeof(*hdr));
561 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
563 if (skb_is_gso(skb)) {
564 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
565 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
566 hdr, skb_shinfo(skb)->gso_size);
567 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
568 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
569 if (lancer_chip(adapter) && adapter->sli_family ==
570 LANCER_A0_SLI_FAMILY) {
571 AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
573 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
575 else if (is_udp_pkt(skb))
576 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
579 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
581 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
582 else if (is_udp_pkt(skb))
583 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
586 if (vlan_tx_tag_present(skb)) {
587 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
588 vlan_tag = vlan_tx_tag_get(skb);
589 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
590 /* If vlan priority provided by OS is NOT in available bmap */
591 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
592 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
593 adapter->recommended_prio;
594 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
597 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
598 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
599 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
600 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
603 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
608 be_dws_le_to_cpu(wrb, sizeof(*wrb));
610 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
613 dma_unmap_single(dev, dma, wrb->frag_len,
616 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
620 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
621 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
625 struct device *dev = &adapter->pdev->dev;
626 struct sk_buff *first_skb = skb;
627 struct be_eth_wrb *wrb;
628 struct be_eth_hdr_wrb *hdr;
629 bool map_single = false;
632 hdr = queue_head_node(txq);
634 map_head = txq->head;
636 if (skb->len > skb->data_len) {
637 int len = skb_headlen(skb);
638 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
639 if (dma_mapping_error(dev, busaddr))
642 wrb = queue_head_node(txq);
643 wrb_fill(wrb, busaddr, len);
644 be_dws_cpu_to_le(wrb, sizeof(*wrb));
649 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
650 const struct skb_frag_struct *frag =
651 &skb_shinfo(skb)->frags[i];
652 busaddr = skb_frag_dma_map(dev, frag, 0,
653 skb_frag_size(frag), DMA_TO_DEVICE);
654 if (dma_mapping_error(dev, busaddr))
656 wrb = queue_head_node(txq);
657 wrb_fill(wrb, busaddr, skb_frag_size(frag));
658 be_dws_cpu_to_le(wrb, sizeof(*wrb));
660 copied += skb_frag_size(frag);
664 wrb = queue_head_node(txq);
666 be_dws_cpu_to_le(wrb, sizeof(*wrb));
670 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
671 be_dws_cpu_to_le(hdr, sizeof(*hdr));
675 txq->head = map_head;
677 wrb = queue_head_node(txq);
678 unmap_tx_frag(dev, wrb, map_single);
680 copied -= wrb->frag_len;
686 static netdev_tx_t be_xmit(struct sk_buff *skb,
687 struct net_device *netdev)
689 struct be_adapter *adapter = netdev_priv(netdev);
690 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
691 struct be_queue_info *txq = &txo->q;
692 u32 wrb_cnt = 0, copied = 0;
693 u32 start = txq->head;
694 bool dummy_wrb, stopped = false;
696 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
698 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
700 /* record the sent skb in the sent_skb table */
701 BUG_ON(txo->sent_skb_list[start]);
702 txo->sent_skb_list[start] = skb;
704 /* Ensure txq has space for the next skb; Else stop the queue
705 * *BEFORE* ringing the tx doorbell, so that we serialze the
706 * tx compls of the current transmit which'll wake up the queue
708 atomic_add(wrb_cnt, &txq->used);
709 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
711 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
715 be_txq_notify(adapter, txq->id, wrb_cnt);
717 be_tx_stats_update(txo, wrb_cnt, copied,
718 skb_shinfo(skb)->gso_segs, stopped);
721 dev_kfree_skb_any(skb);
726 static int be_change_mtu(struct net_device *netdev, int new_mtu)
728 struct be_adapter *adapter = netdev_priv(netdev);
729 if (new_mtu < BE_MIN_MTU ||
730 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
731 (ETH_HLEN + ETH_FCS_LEN))) {
732 dev_info(&adapter->pdev->dev,
733 "MTU must be between %d and %d bytes\n",
735 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
738 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
739 netdev->mtu, new_mtu);
740 netdev->mtu = new_mtu;
745 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
746 * If the user configures more, place BE in vlan promiscuous mode.
748 static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num)
750 u16 vtag[BE_NUM_VLANS_SUPPORTED];
756 if_handle = adapter->vf_cfg[vf_num].vf_if_handle;
757 vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag);
758 status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0);
761 /* No need to further configure vids if in promiscuous mode */
762 if (adapter->promiscuous)
765 if (adapter->vlans_added <= adapter->max_vlans) {
766 /* Construct VLAN Table to give to HW */
767 for (i = 0; i < VLAN_N_VID; i++) {
768 if (adapter->vlan_tag[i]) {
769 vtag[ntags] = cpu_to_le16(i);
773 status = be_cmd_vlan_config(adapter, adapter->if_handle,
776 status = be_cmd_vlan_config(adapter, adapter->if_handle,
783 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
785 struct be_adapter *adapter = netdev_priv(netdev);
787 adapter->vlans_added++;
788 if (!be_physfn(adapter))
791 adapter->vlan_tag[vid] = 1;
792 if (adapter->vlans_added <= (adapter->max_vlans + 1))
793 be_vid_config(adapter, false, 0);
796 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
798 struct be_adapter *adapter = netdev_priv(netdev);
800 adapter->vlans_added--;
802 if (!be_physfn(adapter))
805 adapter->vlan_tag[vid] = 0;
806 if (adapter->vlans_added <= adapter->max_vlans)
807 be_vid_config(adapter, false, 0);
810 static void be_set_rx_mode(struct net_device *netdev)
812 struct be_adapter *adapter = netdev_priv(netdev);
814 if (netdev->flags & IFF_PROMISC) {
815 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
816 adapter->promiscuous = true;
820 /* BE was previously in promiscuous mode; disable it */
821 if (adapter->promiscuous) {
822 adapter->promiscuous = false;
823 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
825 if (adapter->vlans_added)
826 be_vid_config(adapter, false, 0);
829 /* Enable multicast promisc if num configured exceeds what we support */
830 if (netdev->flags & IFF_ALLMULTI ||
831 netdev_mc_count(netdev) > BE_MAX_MC) {
832 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
836 be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
841 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
843 struct be_adapter *adapter = netdev_priv(netdev);
846 if (!adapter->sriov_enabled)
849 if (!is_valid_ether_addr(mac) || (vf >= num_vfs))
852 if (lancer_chip(adapter)) {
853 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
855 status = be_cmd_pmac_del(adapter,
856 adapter->vf_cfg[vf].vf_if_handle,
857 adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
859 status = be_cmd_pmac_add(adapter, mac,
860 adapter->vf_cfg[vf].vf_if_handle,
861 &adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
865 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
868 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
873 static int be_get_vf_config(struct net_device *netdev, int vf,
874 struct ifla_vf_info *vi)
876 struct be_adapter *adapter = netdev_priv(netdev);
878 if (!adapter->sriov_enabled)
885 vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate;
886 vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag;
888 memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN);
893 static int be_set_vf_vlan(struct net_device *netdev,
894 int vf, u16 vlan, u8 qos)
896 struct be_adapter *adapter = netdev_priv(netdev);
899 if (!adapter->sriov_enabled)
902 if ((vf >= num_vfs) || (vlan > 4095))
906 adapter->vf_cfg[vf].vf_vlan_tag = vlan;
907 adapter->vlans_added++;
909 adapter->vf_cfg[vf].vf_vlan_tag = 0;
910 adapter->vlans_added--;
913 status = be_vid_config(adapter, true, vf);
916 dev_info(&adapter->pdev->dev,
917 "VLAN %d config on VF %d failed\n", vlan, vf);
921 static int be_set_vf_tx_rate(struct net_device *netdev,
924 struct be_adapter *adapter = netdev_priv(netdev);
927 if (!adapter->sriov_enabled)
930 if ((vf >= num_vfs) || (rate < 0))
936 adapter->vf_cfg[vf].vf_tx_rate = rate;
937 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
940 dev_info(&adapter->pdev->dev,
941 "tx rate %d on VF %d failed\n", rate, vf);
945 static void be_rx_eqd_update(struct be_adapter *adapter, struct be_rx_obj *rxo)
947 struct be_eq_obj *rx_eq = &rxo->rx_eq;
948 struct be_rx_stats *stats = rx_stats(rxo);
950 ulong delta = now - stats->rx_jiffies;
952 unsigned int start, eqd;
954 if (!rx_eq->enable_aic)
958 if (time_before(now, stats->rx_jiffies)) {
959 stats->rx_jiffies = now;
963 /* Update once a second */
968 start = u64_stats_fetch_begin_bh(&stats->sync);
969 pkts = stats->rx_pkts;
970 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
972 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
973 stats->rx_pkts_prev = pkts;
974 stats->rx_jiffies = now;
975 eqd = stats->rx_pps / 110000;
977 if (eqd > rx_eq->max_eqd)
978 eqd = rx_eq->max_eqd;
979 if (eqd < rx_eq->min_eqd)
980 eqd = rx_eq->min_eqd;
983 if (eqd != rx_eq->cur_eqd) {
984 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
985 rx_eq->cur_eqd = eqd;
989 static void be_rx_stats_update(struct be_rx_obj *rxo,
990 struct be_rx_compl_info *rxcp)
992 struct be_rx_stats *stats = rx_stats(rxo);
994 u64_stats_update_begin(&stats->sync);
996 stats->rx_bytes += rxcp->pkt_size;
998 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
999 stats->rx_mcast_pkts++;
1001 stats->rx_compl_err++;
1002 u64_stats_update_end(&stats->sync);
1005 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1007 /* L4 checksum is not reliable for non TCP/UDP packets.
1008 * Also ignore ipcksm for ipv6 pkts */
1009 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1010 (rxcp->ip_csum || rxcp->ipv6);
1013 static struct be_rx_page_info *
1014 get_rx_page_info(struct be_adapter *adapter,
1015 struct be_rx_obj *rxo,
1018 struct be_rx_page_info *rx_page_info;
1019 struct be_queue_info *rxq = &rxo->q;
1021 rx_page_info = &rxo->page_info_tbl[frag_idx];
1022 BUG_ON(!rx_page_info->page);
1024 if (rx_page_info->last_page_user) {
1025 dma_unmap_page(&adapter->pdev->dev,
1026 dma_unmap_addr(rx_page_info, bus),
1027 adapter->big_page_size, DMA_FROM_DEVICE);
1028 rx_page_info->last_page_user = false;
1031 atomic_dec(&rxq->used);
1032 return rx_page_info;
1035 /* Throwaway the data in the Rx completion */
1036 static void be_rx_compl_discard(struct be_adapter *adapter,
1037 struct be_rx_obj *rxo,
1038 struct be_rx_compl_info *rxcp)
1040 struct be_queue_info *rxq = &rxo->q;
1041 struct be_rx_page_info *page_info;
1042 u16 i, num_rcvd = rxcp->num_rcvd;
1044 for (i = 0; i < num_rcvd; i++) {
1045 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1046 put_page(page_info->page);
1047 memset(page_info, 0, sizeof(*page_info));
1048 index_inc(&rxcp->rxq_idx, rxq->len);
1053 * skb_fill_rx_data forms a complete skb for an ether frame
1054 * indicated by rxcp.
1056 static void skb_fill_rx_data(struct be_adapter *adapter, struct be_rx_obj *rxo,
1057 struct sk_buff *skb, struct be_rx_compl_info *rxcp)
1059 struct be_queue_info *rxq = &rxo->q;
1060 struct be_rx_page_info *page_info;
1062 u16 hdr_len, curr_frag_len, remaining;
1065 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1066 start = page_address(page_info->page) + page_info->page_offset;
1069 /* Copy data in the first descriptor of this completion */
1070 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1072 /* Copy the header portion into skb_data */
1073 hdr_len = min(BE_HDR_LEN, curr_frag_len);
1074 memcpy(skb->data, start, hdr_len);
1075 skb->len = curr_frag_len;
1076 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1077 /* Complete packet has now been moved to data */
1078 put_page(page_info->page);
1080 skb->tail += curr_frag_len;
1082 skb_shinfo(skb)->nr_frags = 1;
1083 skb_frag_set_page(skb, 0, page_info->page);
1084 skb_shinfo(skb)->frags[0].page_offset =
1085 page_info->page_offset + hdr_len;
1086 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1087 skb->data_len = curr_frag_len - hdr_len;
1088 skb->truesize += rx_frag_size;
1089 skb->tail += hdr_len;
1091 page_info->page = NULL;
1093 if (rxcp->pkt_size <= rx_frag_size) {
1094 BUG_ON(rxcp->num_rcvd != 1);
1098 /* More frags present for this completion */
1099 index_inc(&rxcp->rxq_idx, rxq->len);
1100 remaining = rxcp->pkt_size - curr_frag_len;
1101 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1102 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1103 curr_frag_len = min(remaining, rx_frag_size);
1105 /* Coalesce all frags from the same physical page in one slot */
1106 if (page_info->page_offset == 0) {
1109 skb_frag_set_page(skb, j, page_info->page);
1110 skb_shinfo(skb)->frags[j].page_offset =
1111 page_info->page_offset;
1112 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1113 skb_shinfo(skb)->nr_frags++;
1115 put_page(page_info->page);
1118 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1119 skb->len += curr_frag_len;
1120 skb->data_len += curr_frag_len;
1121 skb->truesize += rx_frag_size;
1122 remaining -= curr_frag_len;
1123 index_inc(&rxcp->rxq_idx, rxq->len);
1124 page_info->page = NULL;
1126 BUG_ON(j > MAX_SKB_FRAGS);
1129 /* Process the RX completion indicated by rxcp when GRO is disabled */
1130 static void be_rx_compl_process(struct be_adapter *adapter,
1131 struct be_rx_obj *rxo,
1132 struct be_rx_compl_info *rxcp)
1134 struct net_device *netdev = adapter->netdev;
1135 struct sk_buff *skb;
1137 skb = netdev_alloc_skb_ip_align(netdev, BE_HDR_LEN);
1138 if (unlikely(!skb)) {
1139 rx_stats(rxo)->rx_drops_no_skbs++;
1140 be_rx_compl_discard(adapter, rxo, rxcp);
1144 skb_fill_rx_data(adapter, rxo, skb, rxcp);
1146 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1147 skb->ip_summed = CHECKSUM_UNNECESSARY;
1149 skb_checksum_none_assert(skb);
1151 skb->protocol = eth_type_trans(skb, netdev);
1152 if (adapter->netdev->features & NETIF_F_RXHASH)
1153 skb->rxhash = rxcp->rss_hash;
1157 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1159 netif_receive_skb(skb);
1162 /* Process the RX completion indicated by rxcp when GRO is enabled */
1163 static void be_rx_compl_process_gro(struct be_adapter *adapter,
1164 struct be_rx_obj *rxo,
1165 struct be_rx_compl_info *rxcp)
1167 struct be_rx_page_info *page_info;
1168 struct sk_buff *skb = NULL;
1169 struct be_queue_info *rxq = &rxo->q;
1170 struct be_eq_obj *eq_obj = &rxo->rx_eq;
1171 u16 remaining, curr_frag_len;
1174 skb = napi_get_frags(&eq_obj->napi);
1176 be_rx_compl_discard(adapter, rxo, rxcp);
1180 remaining = rxcp->pkt_size;
1181 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1182 page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx);
1184 curr_frag_len = min(remaining, rx_frag_size);
1186 /* Coalesce all frags from the same physical page in one slot */
1187 if (i == 0 || page_info->page_offset == 0) {
1188 /* First frag or Fresh page */
1190 skb_frag_set_page(skb, j, page_info->page);
1191 skb_shinfo(skb)->frags[j].page_offset =
1192 page_info->page_offset;
1193 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1195 put_page(page_info->page);
1197 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1198 skb->truesize += rx_frag_size;
1199 remaining -= curr_frag_len;
1200 index_inc(&rxcp->rxq_idx, rxq->len);
1201 memset(page_info, 0, sizeof(*page_info));
1203 BUG_ON(j > MAX_SKB_FRAGS);
1205 skb_shinfo(skb)->nr_frags = j + 1;
1206 skb->len = rxcp->pkt_size;
1207 skb->data_len = rxcp->pkt_size;
1208 skb->ip_summed = CHECKSUM_UNNECESSARY;
1209 if (adapter->netdev->features & NETIF_F_RXHASH)
1210 skb->rxhash = rxcp->rss_hash;
1213 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1215 napi_gro_frags(&eq_obj->napi);
1218 static void be_parse_rx_compl_v1(struct be_adapter *adapter,
1219 struct be_eth_rx_compl *compl,
1220 struct be_rx_compl_info *rxcp)
1223 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1224 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1225 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1226 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1227 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1229 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1231 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1233 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1235 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1237 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1239 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1241 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp);
1243 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1245 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1248 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1251 static void be_parse_rx_compl_v0(struct be_adapter *adapter,
1252 struct be_eth_rx_compl *compl,
1253 struct be_rx_compl_info *rxcp)
1256 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1257 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1258 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1259 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1260 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1262 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1264 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1266 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1268 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1270 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1272 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1274 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp);
1276 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1278 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1281 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1284 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1286 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1287 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1288 struct be_adapter *adapter = rxo->adapter;
1290 /* For checking the valid bit it is Ok to use either definition as the
1291 * valid bit is at the same position in both v0 and v1 Rx compl */
1292 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1296 be_dws_le_to_cpu(compl, sizeof(*compl));
1298 if (adapter->be3_native)
1299 be_parse_rx_compl_v1(adapter, compl, rxcp);
1301 be_parse_rx_compl_v0(adapter, compl, rxcp);
1304 /* vlanf could be wrongly set in some cards.
1305 * ignore if vtm is not set */
1306 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1309 if (!lancer_chip(adapter))
1310 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1312 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1313 !adapter->vlan_tag[rxcp->vlan_tag])
1317 /* As the compl has been parsed, reset it; we wont touch it again */
1318 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1320 queue_tail_inc(&rxo->cq);
1324 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1326 u32 order = get_order(size);
1330 return alloc_pages(gfp, order);
1334 * Allocate a page, split it to fragments of size rx_frag_size and post as
1335 * receive buffers to BE
1337 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1339 struct be_adapter *adapter = rxo->adapter;
1340 struct be_rx_page_info *page_info_tbl = rxo->page_info_tbl;
1341 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1342 struct be_queue_info *rxq = &rxo->q;
1343 struct page *pagep = NULL;
1344 struct be_eth_rx_d *rxd;
1345 u64 page_dmaaddr = 0, frag_dmaaddr;
1346 u32 posted, page_offset = 0;
1348 page_info = &rxo->page_info_tbl[rxq->head];
1349 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1351 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1352 if (unlikely(!pagep)) {
1353 rx_stats(rxo)->rx_post_fail++;
1356 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1357 0, adapter->big_page_size,
1359 page_info->page_offset = 0;
1362 page_info->page_offset = page_offset + rx_frag_size;
1364 page_offset = page_info->page_offset;
1365 page_info->page = pagep;
1366 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1367 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1369 rxd = queue_head_node(rxq);
1370 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1371 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1373 /* Any space left in the current big page for another frag? */
1374 if ((page_offset + rx_frag_size + rx_frag_size) >
1375 adapter->big_page_size) {
1377 page_info->last_page_user = true;
1380 prev_page_info = page_info;
1381 queue_head_inc(rxq);
1382 page_info = &page_info_tbl[rxq->head];
1385 prev_page_info->last_page_user = true;
1388 atomic_add(posted, &rxq->used);
1389 be_rxq_notify(adapter, rxq->id, posted);
1390 } else if (atomic_read(&rxq->used) == 0) {
1391 /* Let be_worker replenish when memory is available */
1392 rxo->rx_post_starved = true;
1396 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1398 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1400 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1404 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1406 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1408 queue_tail_inc(tx_cq);
1412 static u16 be_tx_compl_process(struct be_adapter *adapter,
1413 struct be_tx_obj *txo, u16 last_index)
1415 struct be_queue_info *txq = &txo->q;
1416 struct be_eth_wrb *wrb;
1417 struct sk_buff **sent_skbs = txo->sent_skb_list;
1418 struct sk_buff *sent_skb;
1419 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1420 bool unmap_skb_hdr = true;
1422 sent_skb = sent_skbs[txq->tail];
1424 sent_skbs[txq->tail] = NULL;
1426 /* skip header wrb */
1427 queue_tail_inc(txq);
1430 cur_index = txq->tail;
1431 wrb = queue_tail_node(txq);
1432 unmap_tx_frag(&adapter->pdev->dev, wrb,
1433 (unmap_skb_hdr && skb_headlen(sent_skb)));
1434 unmap_skb_hdr = false;
1437 queue_tail_inc(txq);
1438 } while (cur_index != last_index);
1440 kfree_skb(sent_skb);
1444 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1446 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1452 eqe->evt = le32_to_cpu(eqe->evt);
1453 queue_tail_inc(&eq_obj->q);
1457 static int event_handle(struct be_adapter *adapter,
1458 struct be_eq_obj *eq_obj,
1461 struct be_eq_entry *eqe;
1464 while ((eqe = event_get(eq_obj)) != NULL) {
1469 /* Deal with any spurious interrupts that come
1475 be_eq_notify(adapter, eq_obj->q.id, rearm, true, num);
1477 napi_schedule(&eq_obj->napi);
1482 /* Just read and notify events without processing them.
1483 * Used at the time of destroying event queues */
1484 static void be_eq_clean(struct be_adapter *adapter,
1485 struct be_eq_obj *eq_obj)
1487 struct be_eq_entry *eqe;
1490 while ((eqe = event_get(eq_obj)) != NULL) {
1496 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1499 static void be_rx_q_clean(struct be_adapter *adapter, struct be_rx_obj *rxo)
1501 struct be_rx_page_info *page_info;
1502 struct be_queue_info *rxq = &rxo->q;
1503 struct be_queue_info *rx_cq = &rxo->cq;
1504 struct be_rx_compl_info *rxcp;
1507 /* First cleanup pending rx completions */
1508 while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1509 be_rx_compl_discard(adapter, rxo, rxcp);
1510 be_cq_notify(adapter, rx_cq->id, false, 1);
1513 /* Then free posted rx buffer that were not used */
1514 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1515 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1516 page_info = get_rx_page_info(adapter, rxo, tail);
1517 put_page(page_info->page);
1518 memset(page_info, 0, sizeof(*page_info));
1520 BUG_ON(atomic_read(&rxq->used));
1521 rxq->tail = rxq->head = 0;
1524 static void be_tx_compl_clean(struct be_adapter *adapter,
1525 struct be_tx_obj *txo)
1527 struct be_queue_info *tx_cq = &txo->cq;
1528 struct be_queue_info *txq = &txo->q;
1529 struct be_eth_tx_compl *txcp;
1530 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1531 struct sk_buff **sent_skbs = txo->sent_skb_list;
1532 struct sk_buff *sent_skb;
1535 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1537 while ((txcp = be_tx_compl_get(tx_cq))) {
1538 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1540 num_wrbs += be_tx_compl_process(adapter, txo, end_idx);
1544 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1545 atomic_sub(num_wrbs, &txq->used);
1550 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1556 if (atomic_read(&txq->used))
1557 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1558 atomic_read(&txq->used));
1560 /* free posted tx for which compls will never arrive */
1561 while (atomic_read(&txq->used)) {
1562 sent_skb = sent_skbs[txq->tail];
1563 end_idx = txq->tail;
1565 wrb_cnt_for_skb(adapter, sent_skb, &dummy_wrb) - 1,
1567 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1568 atomic_sub(num_wrbs, &txq->used);
1572 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1574 struct be_queue_info *q;
1576 q = &adapter->mcc_obj.q;
1578 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1579 be_queue_free(adapter, q);
1581 q = &adapter->mcc_obj.cq;
1583 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1584 be_queue_free(adapter, q);
1587 /* Must be called only after TX qs are created as MCC shares TX EQ */
1588 static int be_mcc_queues_create(struct be_adapter *adapter)
1590 struct be_queue_info *q, *cq;
1592 /* Alloc MCC compl queue */
1593 cq = &adapter->mcc_obj.cq;
1594 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1595 sizeof(struct be_mcc_compl)))
1598 /* Ask BE to create MCC compl queue; share TX's eq */
1599 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1602 /* Alloc MCC queue */
1603 q = &adapter->mcc_obj.q;
1604 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1605 goto mcc_cq_destroy;
1607 /* Ask BE to create MCC queue */
1608 if (be_cmd_mccq_create(adapter, q, cq))
1614 be_queue_free(adapter, q);
1616 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1618 be_queue_free(adapter, cq);
1623 static void be_tx_queues_destroy(struct be_adapter *adapter)
1625 struct be_queue_info *q;
1626 struct be_tx_obj *txo;
1629 for_all_tx_queues(adapter, txo, i) {
1632 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1633 be_queue_free(adapter, q);
1637 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1638 be_queue_free(adapter, q);
1641 /* Clear any residual events */
1642 be_eq_clean(adapter, &adapter->tx_eq);
1644 q = &adapter->tx_eq.q;
1646 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1647 be_queue_free(adapter, q);
1650 static int be_num_txqs_want(struct be_adapter *adapter)
1652 if ((num_vfs && adapter->sriov_enabled) ||
1653 be_is_mc(adapter) ||
1654 lancer_chip(adapter) || !be_physfn(adapter) ||
1655 adapter->generation == BE_GEN2)
1661 /* One TX event queue is shared by all TX compl qs */
1662 static int be_tx_queues_create(struct be_adapter *adapter)
1664 struct be_queue_info *eq, *q, *cq;
1665 struct be_tx_obj *txo;
1668 adapter->num_tx_qs = be_num_txqs_want(adapter);
1669 if (adapter->num_tx_qs != MAX_TX_QS) {
1671 netif_set_real_num_tx_queues(adapter->netdev,
1672 adapter->num_tx_qs);
1676 adapter->tx_eq.max_eqd = 0;
1677 adapter->tx_eq.min_eqd = 0;
1678 adapter->tx_eq.cur_eqd = 96;
1679 adapter->tx_eq.enable_aic = false;
1681 eq = &adapter->tx_eq.q;
1682 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1683 sizeof(struct be_eq_entry)))
1686 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1688 adapter->tx_eq.eq_idx = adapter->eq_next_idx++;
1690 for_all_tx_queues(adapter, txo, i) {
1692 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1693 sizeof(struct be_eth_tx_compl)))
1696 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1700 if (be_queue_alloc(adapter, q, TX_Q_LEN,
1701 sizeof(struct be_eth_wrb)))
1707 be_tx_queues_destroy(adapter);
1711 static void be_rx_queues_destroy(struct be_adapter *adapter)
1713 struct be_queue_info *q;
1714 struct be_rx_obj *rxo;
1717 for_all_rx_queues(adapter, rxo, i) {
1718 be_queue_free(adapter, &rxo->q);
1722 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1723 be_queue_free(adapter, q);
1727 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1728 be_queue_free(adapter, q);
1732 static u32 be_num_rxqs_want(struct be_adapter *adapter)
1734 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
1735 !adapter->sriov_enabled && be_physfn(adapter) &&
1736 !be_is_mc(adapter)) {
1737 return 1 + MAX_RSS_QS; /* one default non-RSS queue */
1739 dev_warn(&adapter->pdev->dev,
1740 "No support for multiple RX queues\n");
1745 static int be_rx_queues_create(struct be_adapter *adapter)
1747 struct be_queue_info *eq, *q, *cq;
1748 struct be_rx_obj *rxo;
1751 adapter->num_rx_qs = min(be_num_rxqs_want(adapter),
1752 msix_enabled(adapter) ?
1753 adapter->num_msix_vec - 1 : 1);
1754 if (adapter->num_rx_qs != MAX_RX_QS)
1755 dev_warn(&adapter->pdev->dev,
1756 "Can create only %d RX queues", adapter->num_rx_qs);
1758 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1759 for_all_rx_queues(adapter, rxo, i) {
1760 rxo->adapter = adapter;
1761 rxo->rx_eq.max_eqd = BE_MAX_EQD;
1762 rxo->rx_eq.enable_aic = true;
1766 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1767 sizeof(struct be_eq_entry));
1771 rc = be_cmd_eq_create(adapter, eq, rxo->rx_eq.cur_eqd);
1775 rxo->rx_eq.eq_idx = adapter->eq_next_idx++;
1779 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1780 sizeof(struct be_eth_rx_compl));
1784 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1788 /* Rx Q - will be created in be_open() */
1790 rc = be_queue_alloc(adapter, q, RX_Q_LEN,
1791 sizeof(struct be_eth_rx_d));
1799 be_rx_queues_destroy(adapter);
1803 static bool event_peek(struct be_eq_obj *eq_obj)
1805 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1812 static irqreturn_t be_intx(int irq, void *dev)
1814 struct be_adapter *adapter = dev;
1815 struct be_rx_obj *rxo;
1816 int isr, i, tx = 0 , rx = 0;
1818 if (lancer_chip(adapter)) {
1819 if (event_peek(&adapter->tx_eq))
1820 tx = event_handle(adapter, &adapter->tx_eq, false);
1821 for_all_rx_queues(adapter, rxo, i) {
1822 if (event_peek(&rxo->rx_eq))
1823 rx |= event_handle(adapter, &rxo->rx_eq, true);
1830 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1831 (adapter->tx_eq.q.id / 8) * CEV_ISR_SIZE);
1835 if ((1 << adapter->tx_eq.eq_idx & isr))
1836 event_handle(adapter, &adapter->tx_eq, false);
1838 for_all_rx_queues(adapter, rxo, i) {
1839 if ((1 << rxo->rx_eq.eq_idx & isr))
1840 event_handle(adapter, &rxo->rx_eq, true);
1847 static irqreturn_t be_msix_rx(int irq, void *dev)
1849 struct be_rx_obj *rxo = dev;
1850 struct be_adapter *adapter = rxo->adapter;
1852 event_handle(adapter, &rxo->rx_eq, true);
1857 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1859 struct be_adapter *adapter = dev;
1861 event_handle(adapter, &adapter->tx_eq, false);
1866 static inline bool do_gro(struct be_rx_compl_info *rxcp)
1868 return (rxcp->tcpf && !rxcp->err) ? true : false;
1871 static int be_poll_rx(struct napi_struct *napi, int budget)
1873 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1874 struct be_rx_obj *rxo = container_of(rx_eq, struct be_rx_obj, rx_eq);
1875 struct be_adapter *adapter = rxo->adapter;
1876 struct be_queue_info *rx_cq = &rxo->cq;
1877 struct be_rx_compl_info *rxcp;
1880 rx_stats(rxo)->rx_polls++;
1881 for (work_done = 0; work_done < budget; work_done++) {
1882 rxcp = be_rx_compl_get(rxo);
1886 /* Is it a flush compl that has no data */
1887 if (unlikely(rxcp->num_rcvd == 0))
1890 /* Discard compl with partial DMA Lancer B0 */
1891 if (unlikely(!rxcp->pkt_size)) {
1892 be_rx_compl_discard(adapter, rxo, rxcp);
1896 /* On BE drop pkts that arrive due to imperfect filtering in
1897 * promiscuous mode on some skews
1899 if (unlikely(rxcp->port != adapter->port_num &&
1900 !lancer_chip(adapter))) {
1901 be_rx_compl_discard(adapter, rxo, rxcp);
1906 be_rx_compl_process_gro(adapter, rxo, rxcp);
1908 be_rx_compl_process(adapter, rxo, rxcp);
1910 be_rx_stats_update(rxo, rxcp);
1913 be_cq_notify(adapter, rx_cq->id, false, work_done);
1915 /* Refill the queue */
1916 if (work_done && atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
1917 be_post_rx_frags(rxo, GFP_ATOMIC);
1920 if (work_done < budget) {
1921 napi_complete(napi);
1923 be_cq_notify(adapter, rx_cq->id, true, 0);
1928 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1929 * For TX/MCC we don't honour budget; consume everything
1931 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1933 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1934 struct be_adapter *adapter =
1935 container_of(tx_eq, struct be_adapter, tx_eq);
1936 struct be_tx_obj *txo;
1937 struct be_eth_tx_compl *txcp;
1938 int tx_compl, mcc_compl, status = 0;
1942 for_all_tx_queues(adapter, txo, i) {
1945 while ((txcp = be_tx_compl_get(&txo->cq))) {
1946 num_wrbs += be_tx_compl_process(adapter, txo,
1947 AMAP_GET_BITS(struct amap_eth_tx_compl,
1952 be_cq_notify(adapter, txo->cq.id, true, tx_compl);
1954 atomic_sub(num_wrbs, &txo->q.used);
1956 /* As Tx wrbs have been freed up, wake up netdev queue
1957 * if it was stopped due to lack of tx wrbs. */
1958 if (__netif_subqueue_stopped(adapter->netdev, i) &&
1959 atomic_read(&txo->q.used) < txo->q.len / 2) {
1960 netif_wake_subqueue(adapter->netdev, i);
1963 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
1964 tx_stats(txo)->tx_compl += tx_compl;
1965 u64_stats_update_end(&tx_stats(txo)->sync_compl);
1969 mcc_compl = be_process_mcc(adapter, &status);
1972 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1973 be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl);
1976 napi_complete(napi);
1978 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1979 adapter->drv_stats.tx_events++;
1983 void be_detect_dump_ue(struct be_adapter *adapter)
1985 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
1986 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
1989 if (adapter->eeh_err || adapter->ue_detected)
1992 if (lancer_chip(adapter)) {
1993 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
1994 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
1995 sliport_err1 = ioread32(adapter->db +
1996 SLIPORT_ERROR1_OFFSET);
1997 sliport_err2 = ioread32(adapter->db +
1998 SLIPORT_ERROR2_OFFSET);
2001 pci_read_config_dword(adapter->pdev,
2002 PCICFG_UE_STATUS_LOW, &ue_lo);
2003 pci_read_config_dword(adapter->pdev,
2004 PCICFG_UE_STATUS_HIGH, &ue_hi);
2005 pci_read_config_dword(adapter->pdev,
2006 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2007 pci_read_config_dword(adapter->pdev,
2008 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2010 ue_lo = (ue_lo & (~ue_lo_mask));
2011 ue_hi = (ue_hi & (~ue_hi_mask));
2014 if (ue_lo || ue_hi ||
2015 sliport_status & SLIPORT_STATUS_ERR_MASK) {
2016 adapter->ue_detected = true;
2017 adapter->eeh_err = true;
2018 dev_err(&adapter->pdev->dev,
2019 "Unrecoverable error in the card\n");
2023 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2025 dev_err(&adapter->pdev->dev,
2026 "UE: %s bit set\n", ue_status_low_desc[i]);
2030 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2032 dev_err(&adapter->pdev->dev,
2033 "UE: %s bit set\n", ue_status_hi_desc[i]);
2037 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2038 dev_err(&adapter->pdev->dev,
2039 "sliport status 0x%x\n", sliport_status);
2040 dev_err(&adapter->pdev->dev,
2041 "sliport error1 0x%x\n", sliport_err1);
2042 dev_err(&adapter->pdev->dev,
2043 "sliport error2 0x%x\n", sliport_err2);
2047 static void be_worker(struct work_struct *work)
2049 struct be_adapter *adapter =
2050 container_of(work, struct be_adapter, work.work);
2051 struct be_rx_obj *rxo;
2054 be_detect_dump_ue(adapter);
2056 /* when interrupts are not yet enabled, just reap any pending
2057 * mcc completions */
2058 if (!netif_running(adapter->netdev)) {
2059 int mcc_compl, status = 0;
2061 mcc_compl = be_process_mcc(adapter, &status);
2064 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
2065 be_cq_notify(adapter, mcc_obj->cq.id, false, mcc_compl);
2071 if (!adapter->stats_cmd_sent) {
2072 if (lancer_chip(adapter))
2073 lancer_cmd_get_pport_stats(adapter,
2074 &adapter->stats_cmd);
2076 be_cmd_get_stats(adapter, &adapter->stats_cmd);
2079 for_all_rx_queues(adapter, rxo, i) {
2080 be_rx_eqd_update(adapter, rxo);
2082 if (rxo->rx_post_starved) {
2083 rxo->rx_post_starved = false;
2084 be_post_rx_frags(rxo, GFP_KERNEL);
2089 adapter->work_counter++;
2090 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2093 static void be_msix_disable(struct be_adapter *adapter)
2095 if (msix_enabled(adapter)) {
2096 pci_disable_msix(adapter->pdev);
2097 adapter->num_msix_vec = 0;
2101 static void be_msix_enable(struct be_adapter *adapter)
2103 #define BE_MIN_MSIX_VECTORS (1 + 1) /* Rx + Tx */
2104 int i, status, num_vec;
2106 num_vec = be_num_rxqs_want(adapter) + 1;
2108 for (i = 0; i < num_vec; i++)
2109 adapter->msix_entries[i].entry = i;
2111 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2114 } else if (status >= BE_MIN_MSIX_VECTORS) {
2116 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2122 adapter->num_msix_vec = num_vec;
2126 static int be_sriov_enable(struct be_adapter *adapter)
2128 be_check_sriov_fn_type(adapter);
2129 #ifdef CONFIG_PCI_IOV
2130 if (be_physfn(adapter) && num_vfs) {
2134 pos = pci_find_ext_capability(adapter->pdev,
2135 PCI_EXT_CAP_ID_SRIOV);
2136 pci_read_config_word(adapter->pdev,
2137 pos + PCI_SRIOV_TOTAL_VF, &nvfs);
2139 if (num_vfs > nvfs) {
2140 dev_info(&adapter->pdev->dev,
2141 "Device supports %d VFs and not %d\n",
2146 status = pci_enable_sriov(adapter->pdev, num_vfs);
2147 adapter->sriov_enabled = status ? false : true;
2149 if (adapter->sriov_enabled) {
2150 adapter->vf_cfg = kcalloc(num_vfs,
2151 sizeof(struct be_vf_cfg),
2153 if (!adapter->vf_cfg)
2161 static void be_sriov_disable(struct be_adapter *adapter)
2163 #ifdef CONFIG_PCI_IOV
2164 if (adapter->sriov_enabled) {
2165 pci_disable_sriov(adapter->pdev);
2166 kfree(adapter->vf_cfg);
2167 adapter->sriov_enabled = false;
2172 static inline int be_msix_vec_get(struct be_adapter *adapter,
2173 struct be_eq_obj *eq_obj)
2175 return adapter->msix_entries[eq_obj->eq_idx].vector;
2178 static int be_request_irq(struct be_adapter *adapter,
2179 struct be_eq_obj *eq_obj,
2180 void *handler, char *desc, void *context)
2182 struct net_device *netdev = adapter->netdev;
2185 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
2186 vec = be_msix_vec_get(adapter, eq_obj);
2187 return request_irq(vec, handler, 0, eq_obj->desc, context);
2190 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj,
2193 int vec = be_msix_vec_get(adapter, eq_obj);
2194 free_irq(vec, context);
2197 static int be_msix_register(struct be_adapter *adapter)
2199 struct be_rx_obj *rxo;
2203 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx",
2208 for_all_rx_queues(adapter, rxo, i) {
2209 sprintf(qname, "rxq%d", i);
2210 status = be_request_irq(adapter, &rxo->rx_eq, be_msix_rx,
2219 be_free_irq(adapter, &adapter->tx_eq, adapter);
2221 for (i--, rxo = &adapter->rx_obj[i]; i >= 0; i--, rxo--)
2222 be_free_irq(adapter, &rxo->rx_eq, rxo);
2225 dev_warn(&adapter->pdev->dev,
2226 "MSIX Request IRQ failed - err %d\n", status);
2227 be_msix_disable(adapter);
2231 static int be_irq_register(struct be_adapter *adapter)
2233 struct net_device *netdev = adapter->netdev;
2236 if (msix_enabled(adapter)) {
2237 status = be_msix_register(adapter);
2240 /* INTx is not supported for VF */
2241 if (!be_physfn(adapter))
2246 netdev->irq = adapter->pdev->irq;
2247 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2250 dev_err(&adapter->pdev->dev,
2251 "INTx request IRQ failed - err %d\n", status);
2255 adapter->isr_registered = true;
2259 static void be_irq_unregister(struct be_adapter *adapter)
2261 struct net_device *netdev = adapter->netdev;
2262 struct be_rx_obj *rxo;
2265 if (!adapter->isr_registered)
2269 if (!msix_enabled(adapter)) {
2270 free_irq(netdev->irq, adapter);
2275 be_free_irq(adapter, &adapter->tx_eq, adapter);
2277 for_all_rx_queues(adapter, rxo, i)
2278 be_free_irq(adapter, &rxo->rx_eq, rxo);
2281 adapter->isr_registered = false;
2284 static void be_rx_queues_clear(struct be_adapter *adapter)
2286 struct be_queue_info *q;
2287 struct be_rx_obj *rxo;
2290 for_all_rx_queues(adapter, rxo, i) {
2293 be_cmd_rxq_destroy(adapter, q);
2294 /* After the rxq is invalidated, wait for a grace time
2295 * of 1ms for all dma to end and the flush compl to
2299 be_rx_q_clean(adapter, rxo);
2302 /* Clear any residual events */
2305 be_eq_clean(adapter, &rxo->rx_eq);
2309 static int be_close(struct net_device *netdev)
2311 struct be_adapter *adapter = netdev_priv(netdev);
2312 struct be_rx_obj *rxo;
2313 struct be_tx_obj *txo;
2314 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2317 be_async_mcc_disable(adapter);
2319 if (!lancer_chip(adapter))
2320 be_intr_set(adapter, false);
2322 for_all_rx_queues(adapter, rxo, i)
2323 napi_disable(&rxo->rx_eq.napi);
2325 napi_disable(&tx_eq->napi);
2327 if (lancer_chip(adapter)) {
2328 be_cq_notify(adapter, adapter->mcc_obj.cq.id, false, 0);
2329 for_all_rx_queues(adapter, rxo, i)
2330 be_cq_notify(adapter, rxo->cq.id, false, 0);
2331 for_all_tx_queues(adapter, txo, i)
2332 be_cq_notify(adapter, txo->cq.id, false, 0);
2335 if (msix_enabled(adapter)) {
2336 vec = be_msix_vec_get(adapter, tx_eq);
2337 synchronize_irq(vec);
2339 for_all_rx_queues(adapter, rxo, i) {
2340 vec = be_msix_vec_get(adapter, &rxo->rx_eq);
2341 synchronize_irq(vec);
2344 synchronize_irq(netdev->irq);
2346 be_irq_unregister(adapter);
2348 /* Wait for all pending tx completions to arrive so that
2349 * all tx skbs are freed.
2351 for_all_tx_queues(adapter, txo, i)
2352 be_tx_compl_clean(adapter, txo);
2354 be_rx_queues_clear(adapter);
2358 static int be_rx_queues_setup(struct be_adapter *adapter)
2360 struct be_rx_obj *rxo;
2362 u8 rsstable[MAX_RSS_QS];
2364 for_all_rx_queues(adapter, rxo, i) {
2365 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2366 rx_frag_size, BE_MAX_JUMBO_FRAME_SIZE,
2368 (i > 0) ? 1 : 0/* rss enable */, &rxo->rss_id);
2373 if (be_multi_rxq(adapter)) {
2374 for_all_rss_queues(adapter, rxo, i)
2375 rsstable[i] = rxo->rss_id;
2377 rc = be_cmd_rss_config(adapter, rsstable,
2378 adapter->num_rx_qs - 1);
2383 /* First time posting */
2384 for_all_rx_queues(adapter, rxo, i) {
2385 be_post_rx_frags(rxo, GFP_KERNEL);
2386 napi_enable(&rxo->rx_eq.napi);
2391 static int be_open(struct net_device *netdev)
2393 struct be_adapter *adapter = netdev_priv(netdev);
2394 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2395 struct be_rx_obj *rxo;
2398 status = be_rx_queues_setup(adapter);
2402 napi_enable(&tx_eq->napi);
2404 be_irq_register(adapter);
2406 if (!lancer_chip(adapter))
2407 be_intr_set(adapter, true);
2409 /* The evt queues are created in unarmed state; arm them */
2410 for_all_rx_queues(adapter, rxo, i) {
2411 be_eq_notify(adapter, rxo->rx_eq.q.id, true, false, 0);
2412 be_cq_notify(adapter, rxo->cq.id, true, 0);
2414 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
2416 /* Now that interrupts are on we can process async mcc */
2417 be_async_mcc_enable(adapter);
2421 be_close(adapter->netdev);
2425 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2427 struct be_dma_mem cmd;
2431 memset(mac, 0, ETH_ALEN);
2433 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2434 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2438 memset(cmd.va, 0, cmd.size);
2441 status = pci_write_config_dword(adapter->pdev,
2442 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2444 dev_err(&adapter->pdev->dev,
2445 "Could not enable Wake-on-lan\n");
2446 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2450 status = be_cmd_enable_magic_wol(adapter,
2451 adapter->netdev->dev_addr, &cmd);
2452 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2453 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2455 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2456 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2457 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2460 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2465 * Generate a seed MAC address from the PF MAC Address using jhash.
2466 * MAC Address for VFs are assigned incrementally starting from the seed.
2467 * These addresses are programmed in the ASIC by the PF and the VF driver
2468 * queries for the MAC address during its probe.
2470 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2476 be_vf_eth_addr_generate(adapter, mac);
2478 for (vf = 0; vf < num_vfs; vf++) {
2479 if (lancer_chip(adapter)) {
2480 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2482 status = be_cmd_pmac_add(adapter, mac,
2483 adapter->vf_cfg[vf].vf_if_handle,
2484 &adapter->vf_cfg[vf].vf_pmac_id,
2489 dev_err(&adapter->pdev->dev,
2490 "Mac address assignment failed for VF %d\n", vf);
2492 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
2499 static void be_vf_clear(struct be_adapter *adapter)
2503 for (vf = 0; vf < num_vfs; vf++) {
2504 if (lancer_chip(adapter))
2505 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2507 be_cmd_pmac_del(adapter,
2508 adapter->vf_cfg[vf].vf_if_handle,
2509 adapter->vf_cfg[vf].vf_pmac_id, vf + 1);
2512 for (vf = 0; vf < num_vfs; vf++)
2513 be_cmd_if_destroy(adapter, adapter->vf_cfg[vf].vf_if_handle,
2517 static int be_clear(struct be_adapter *adapter)
2519 if (be_physfn(adapter) && adapter->sriov_enabled)
2520 be_vf_clear(adapter);
2522 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2524 be_mcc_queues_destroy(adapter);
2525 be_rx_queues_destroy(adapter);
2526 be_tx_queues_destroy(adapter);
2528 /* tell fw we're done with firing cmds */
2529 be_cmd_fw_clean(adapter);
2533 static void be_vf_setup_init(struct be_adapter *adapter)
2537 for (vf = 0; vf < num_vfs; vf++) {
2538 adapter->vf_cfg[vf].vf_if_handle = -1;
2539 adapter->vf_cfg[vf].vf_pmac_id = -1;
2543 static int be_vf_setup(struct be_adapter *adapter)
2545 u32 cap_flags, en_flags, vf;
2549 be_vf_setup_init(adapter);
2551 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2552 BE_IF_FLAGS_MULTICAST;
2554 for (vf = 0; vf < num_vfs; vf++) {
2555 status = be_cmd_if_create(adapter, cap_flags, en_flags, NULL,
2556 &adapter->vf_cfg[vf].vf_if_handle,
2562 status = be_vf_eth_addr_config(adapter);
2566 for (vf = 0; vf < num_vfs; vf++) {
2567 status = be_cmd_link_status_query(adapter, NULL, &lnk_speed,
2571 adapter->vf_cfg[vf].vf_tx_rate = lnk_speed * 10;
2578 static void be_setup_init(struct be_adapter *adapter)
2580 adapter->vlan_prio_bmap = 0xff;
2581 adapter->link_speed = -1;
2582 adapter->if_handle = -1;
2583 adapter->be3_native = false;
2584 adapter->promiscuous = false;
2585 adapter->eq_next_idx = 0;
2588 static int be_configure_mac_from_list(struct be_adapter *adapter, u8 *mac)
2591 int status = be_cmd_get_mac_from_list(adapter, 0, &pmac_id);
2594 status = be_cmd_mac_addr_query(adapter, mac,
2595 MAC_ADDRESS_TYPE_NETWORK,
2596 false, adapter->if_handle, pmac_id);
2599 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
2600 &adapter->pmac_id, 0);
2605 static int be_setup(struct be_adapter *adapter)
2607 struct net_device *netdev = adapter->netdev;
2608 u32 cap_flags, en_flags;
2612 struct be_tx_obj *txo;
2614 be_setup_init(adapter);
2616 be_cmd_req_native_mode(adapter);
2618 status = be_tx_queues_create(adapter);
2622 status = be_rx_queues_create(adapter);
2626 status = be_mcc_queues_create(adapter);
2630 memset(mac, 0, ETH_ALEN);
2631 status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK,
2632 true /*permanent */, 0, 0);
2635 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2636 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2638 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2639 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
2640 cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
2641 BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
2643 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2644 cap_flags |= BE_IF_FLAGS_RSS;
2645 en_flags |= BE_IF_FLAGS_RSS;
2647 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2648 netdev->dev_addr, &adapter->if_handle,
2649 &adapter->pmac_id, 0);
2653 for_all_tx_queues(adapter, txo, i) {
2654 status = be_cmd_txq_create(adapter, &txo->q, &txo->cq);
2659 /* The VF's permanent mac queried from card is incorrect.
2660 * For BEx: Query the mac configued by the PF using if_handle
2661 * For Lancer: Get and use mac_list to obtain mac address.
2663 if (!be_physfn(adapter)) {
2664 if (lancer_chip(adapter))
2665 status = be_configure_mac_from_list(adapter, mac);
2667 status = be_cmd_mac_addr_query(adapter, mac,
2668 MAC_ADDRESS_TYPE_NETWORK, false,
2669 adapter->if_handle, 0);
2671 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2672 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2676 be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
2678 status = be_vid_config(adapter, false, 0);
2682 be_set_rx_mode(adapter->netdev);
2684 status = be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
2685 /* For Lancer: It is legal for this cmd to fail on VF */
2686 if (status && (be_physfn(adapter) || !lancer_chip(adapter)))
2689 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc) {
2690 status = be_cmd_set_flow_control(adapter, adapter->tx_fc,
2692 /* For Lancer: It is legal for this cmd to fail on VF */
2693 if (status && (be_physfn(adapter) || !lancer_chip(adapter)))
2697 pcie_set_readrq(adapter->pdev, 4096);
2699 if (be_physfn(adapter) && adapter->sriov_enabled) {
2700 status = be_vf_setup(adapter);
2711 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
2712 static bool be_flash_redboot(struct be_adapter *adapter,
2713 const u8 *p, u32 img_start, int image_size,
2720 crc_offset = hdr_size + img_start + image_size - 4;
2724 status = be_cmd_get_flash_crc(adapter, flashed_crc,
2727 dev_err(&adapter->pdev->dev,
2728 "could not get crc from flash, not flashing redboot\n");
2732 /*update redboot only if crc does not match*/
2733 if (!memcmp(flashed_crc, p, 4))
2739 static bool phy_flashing_required(struct be_adapter *adapter)
2742 struct be_phy_info phy_info;
2744 status = be_cmd_get_phy_info(adapter, &phy_info);
2747 if ((phy_info.phy_type == TN_8022) &&
2748 (phy_info.interface_type == PHY_TYPE_BASET_10GB)) {
2754 static int be_flash_data(struct be_adapter *adapter,
2755 const struct firmware *fw,
2756 struct be_dma_mem *flash_cmd, int num_of_images)
2759 int status = 0, i, filehdr_size = 0;
2760 u32 total_bytes = 0, flash_op;
2762 const u8 *p = fw->data;
2763 struct be_cmd_write_flashrom *req = flash_cmd->va;
2764 const struct flash_comp *pflashcomp;
2767 static const struct flash_comp gen3_flash_types[10] = {
2768 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
2769 FLASH_IMAGE_MAX_SIZE_g3},
2770 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
2771 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
2772 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
2773 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2774 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
2775 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2776 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
2777 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2778 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
2779 FLASH_IMAGE_MAX_SIZE_g3},
2780 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
2781 FLASH_IMAGE_MAX_SIZE_g3},
2782 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
2783 FLASH_IMAGE_MAX_SIZE_g3},
2784 { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW,
2785 FLASH_NCSI_IMAGE_MAX_SIZE_g3},
2786 { FLASH_PHY_FW_START_g3, IMG_TYPE_PHY_FW,
2787 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3}
2789 static const struct flash_comp gen2_flash_types[8] = {
2790 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
2791 FLASH_IMAGE_MAX_SIZE_g2},
2792 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
2793 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
2794 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
2795 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2796 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
2797 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2798 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
2799 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2800 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
2801 FLASH_IMAGE_MAX_SIZE_g2},
2802 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
2803 FLASH_IMAGE_MAX_SIZE_g2},
2804 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
2805 FLASH_IMAGE_MAX_SIZE_g2}
2808 if (adapter->generation == BE_GEN3) {
2809 pflashcomp = gen3_flash_types;
2810 filehdr_size = sizeof(struct flash_file_hdr_g3);
2811 num_comp = ARRAY_SIZE(gen3_flash_types);
2813 pflashcomp = gen2_flash_types;
2814 filehdr_size = sizeof(struct flash_file_hdr_g2);
2815 num_comp = ARRAY_SIZE(gen2_flash_types);
2817 for (i = 0; i < num_comp; i++) {
2818 if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) &&
2819 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
2821 if (pflashcomp[i].optype == IMG_TYPE_PHY_FW) {
2822 if (!phy_flashing_required(adapter))
2825 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
2826 (!be_flash_redboot(adapter, fw->data,
2827 pflashcomp[i].offset, pflashcomp[i].size, filehdr_size +
2828 (num_of_images * sizeof(struct image_hdr)))))
2831 p += filehdr_size + pflashcomp[i].offset
2832 + (num_of_images * sizeof(struct image_hdr));
2833 if (p + pflashcomp[i].size > fw->data + fw->size)
2835 total_bytes = pflashcomp[i].size;
2836 while (total_bytes) {
2837 if (total_bytes > 32*1024)
2838 num_bytes = 32*1024;
2840 num_bytes = total_bytes;
2841 total_bytes -= num_bytes;
2843 if (pflashcomp[i].optype == IMG_TYPE_PHY_FW)
2844 flash_op = FLASHROM_OPER_PHY_FLASH;
2846 flash_op = FLASHROM_OPER_FLASH;
2848 if (pflashcomp[i].optype == IMG_TYPE_PHY_FW)
2849 flash_op = FLASHROM_OPER_PHY_SAVE;
2851 flash_op = FLASHROM_OPER_SAVE;
2853 memcpy(req->params.data_buf, p, num_bytes);
2855 status = be_cmd_write_flashrom(adapter, flash_cmd,
2856 pflashcomp[i].optype, flash_op, num_bytes);
2858 if ((status == ILLEGAL_IOCTL_REQ) &&
2859 (pflashcomp[i].optype ==
2862 dev_err(&adapter->pdev->dev,
2863 "cmd to write to flash rom failed.\n");
2871 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
2875 if (fhdr->build[0] == '3')
2877 else if (fhdr->build[0] == '2')
2883 static int lancer_fw_download(struct be_adapter *adapter,
2884 const struct firmware *fw)
2886 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
2887 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
2888 struct be_dma_mem flash_cmd;
2889 const u8 *data_ptr = NULL;
2890 u8 *dest_image_ptr = NULL;
2891 size_t image_size = 0;
2893 u32 data_written = 0;
2898 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
2899 dev_err(&adapter->pdev->dev,
2900 "FW Image not properly aligned. "
2901 "Length must be 4 byte aligned.\n");
2903 goto lancer_fw_exit;
2906 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
2907 + LANCER_FW_DOWNLOAD_CHUNK;
2908 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2909 &flash_cmd.dma, GFP_KERNEL);
2910 if (!flash_cmd.va) {
2912 dev_err(&adapter->pdev->dev,
2913 "Memory allocation failure while flashing\n");
2914 goto lancer_fw_exit;
2917 dest_image_ptr = flash_cmd.va +
2918 sizeof(struct lancer_cmd_req_write_object);
2919 image_size = fw->size;
2920 data_ptr = fw->data;
2922 while (image_size) {
2923 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
2925 /* Copy the image chunk content. */
2926 memcpy(dest_image_ptr, data_ptr, chunk_size);
2928 status = lancer_cmd_write_object(adapter, &flash_cmd,
2929 chunk_size, offset, LANCER_FW_DOWNLOAD_LOCATION,
2930 &data_written, &add_status);
2935 offset += data_written;
2936 data_ptr += data_written;
2937 image_size -= data_written;
2941 /* Commit the FW written */
2942 status = lancer_cmd_write_object(adapter, &flash_cmd,
2943 0, offset, LANCER_FW_DOWNLOAD_LOCATION,
2944 &data_written, &add_status);
2947 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
2950 dev_err(&adapter->pdev->dev,
2951 "Firmware load error. "
2952 "Status code: 0x%x Additional Status: 0x%x\n",
2953 status, add_status);
2954 goto lancer_fw_exit;
2957 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2962 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
2964 struct flash_file_hdr_g2 *fhdr;
2965 struct flash_file_hdr_g3 *fhdr3;
2966 struct image_hdr *img_hdr_ptr = NULL;
2967 struct be_dma_mem flash_cmd;
2969 int status = 0, i = 0, num_imgs = 0;
2972 fhdr = (struct flash_file_hdr_g2 *) p;
2974 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
2975 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2976 &flash_cmd.dma, GFP_KERNEL);
2977 if (!flash_cmd.va) {
2979 dev_err(&adapter->pdev->dev,
2980 "Memory allocation failure while flashing\n");
2984 if ((adapter->generation == BE_GEN3) &&
2985 (get_ufigen_type(fhdr) == BE_GEN3)) {
2986 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
2987 num_imgs = le32_to_cpu(fhdr3->num_imgs);
2988 for (i = 0; i < num_imgs; i++) {
2989 img_hdr_ptr = (struct image_hdr *) (fw->data +
2990 (sizeof(struct flash_file_hdr_g3) +
2991 i * sizeof(struct image_hdr)));
2992 if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
2993 status = be_flash_data(adapter, fw, &flash_cmd,
2996 } else if ((adapter->generation == BE_GEN2) &&
2997 (get_ufigen_type(fhdr) == BE_GEN2)) {
2998 status = be_flash_data(adapter, fw, &flash_cmd, 0);
3000 dev_err(&adapter->pdev->dev,
3001 "UFI and Interface are not compatible for flashing\n");
3005 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3008 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3012 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3018 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3020 const struct firmware *fw;
3023 if (!netif_running(adapter->netdev)) {
3024 dev_err(&adapter->pdev->dev,
3025 "Firmware load not allowed (interface is down)\n");
3029 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3033 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3035 if (lancer_chip(adapter))
3036 status = lancer_fw_download(adapter, fw);
3038 status = be_fw_download(adapter, fw);
3041 release_firmware(fw);
3045 static struct net_device_ops be_netdev_ops = {
3046 .ndo_open = be_open,
3047 .ndo_stop = be_close,
3048 .ndo_start_xmit = be_xmit,
3049 .ndo_set_rx_mode = be_set_rx_mode,
3050 .ndo_set_mac_address = be_mac_addr_set,
3051 .ndo_change_mtu = be_change_mtu,
3052 .ndo_get_stats64 = be_get_stats64,
3053 .ndo_validate_addr = eth_validate_addr,
3054 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3055 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3056 .ndo_set_vf_mac = be_set_vf_mac,
3057 .ndo_set_vf_vlan = be_set_vf_vlan,
3058 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3059 .ndo_get_vf_config = be_get_vf_config
3062 static void be_netdev_init(struct net_device *netdev)
3064 struct be_adapter *adapter = netdev_priv(netdev);
3065 struct be_rx_obj *rxo;
3068 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3069 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3071 if (be_multi_rxq(adapter))
3072 netdev->hw_features |= NETIF_F_RXHASH;
3074 netdev->features |= netdev->hw_features |
3075 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3077 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3078 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3080 netdev->flags |= IFF_MULTICAST;
3082 netif_set_gso_max_size(netdev, 65535);
3084 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
3086 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3088 for_all_rx_queues(adapter, rxo, i)
3089 netif_napi_add(netdev, &rxo->rx_eq.napi, be_poll_rx,
3092 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
3096 static void be_unmap_pci_bars(struct be_adapter *adapter)
3099 iounmap(adapter->csr);
3101 iounmap(adapter->db);
3104 static int be_map_pci_bars(struct be_adapter *adapter)
3109 if (lancer_chip(adapter)) {
3110 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 0),
3111 pci_resource_len(adapter->pdev, 0));
3118 if (be_physfn(adapter)) {
3119 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3120 pci_resource_len(adapter->pdev, 2));
3123 adapter->csr = addr;
3126 if (adapter->generation == BE_GEN2) {
3129 if (be_physfn(adapter))
3134 addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3135 pci_resource_len(adapter->pdev, db_reg));
3142 be_unmap_pci_bars(adapter);
3147 static void be_ctrl_cleanup(struct be_adapter *adapter)
3149 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3151 be_unmap_pci_bars(adapter);
3154 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3157 mem = &adapter->rx_filter;
3159 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3163 static int be_ctrl_init(struct be_adapter *adapter)
3165 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3166 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3167 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3170 status = be_map_pci_bars(adapter);
3174 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3175 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3176 mbox_mem_alloc->size,
3177 &mbox_mem_alloc->dma,
3179 if (!mbox_mem_alloc->va) {
3181 goto unmap_pci_bars;
3183 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3184 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3185 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3186 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3188 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3189 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3190 &rx_filter->dma, GFP_KERNEL);
3191 if (rx_filter->va == NULL) {
3195 memset(rx_filter->va, 0, rx_filter->size);
3197 mutex_init(&adapter->mbox_lock);
3198 spin_lock_init(&adapter->mcc_lock);
3199 spin_lock_init(&adapter->mcc_cq_lock);
3201 init_completion(&adapter->flash_compl);
3202 pci_save_state(adapter->pdev);
3206 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3207 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3210 be_unmap_pci_bars(adapter);
3216 static void be_stats_cleanup(struct be_adapter *adapter)
3218 struct be_dma_mem *cmd = &adapter->stats_cmd;
3221 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3225 static int be_stats_init(struct be_adapter *adapter)
3227 struct be_dma_mem *cmd = &adapter->stats_cmd;
3229 if (adapter->generation == BE_GEN2) {
3230 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3232 if (lancer_chip(adapter))
3233 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3235 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3237 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3239 if (cmd->va == NULL)
3241 memset(cmd->va, 0, cmd->size);
3245 static void __devexit be_remove(struct pci_dev *pdev)
3247 struct be_adapter *adapter = pci_get_drvdata(pdev);
3252 cancel_delayed_work_sync(&adapter->work);
3254 unregister_netdev(adapter->netdev);
3258 be_stats_cleanup(adapter);
3260 be_ctrl_cleanup(adapter);
3262 be_sriov_disable(adapter);
3264 be_msix_disable(adapter);
3266 pci_set_drvdata(pdev, NULL);
3267 pci_release_regions(pdev);
3268 pci_disable_device(pdev);
3270 free_netdev(adapter->netdev);
3273 static int be_get_config(struct be_adapter *adapter)
3277 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3278 &adapter->function_mode, &adapter->function_caps);
3282 if (adapter->function_mode & FLEX10_MODE)
3283 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
3285 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3287 status = be_cmd_get_cntl_attributes(adapter);
3294 static int be_dev_family_check(struct be_adapter *adapter)
3296 struct pci_dev *pdev = adapter->pdev;
3297 u32 sli_intf = 0, if_type;
3299 switch (pdev->device) {
3302 adapter->generation = BE_GEN2;
3306 adapter->generation = BE_GEN3;
3310 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3311 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3312 SLI_INTF_IF_TYPE_SHIFT;
3314 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3316 dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3319 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3320 SLI_INTF_FAMILY_SHIFT);
3321 adapter->generation = BE_GEN3;
3324 adapter->generation = 0;
3329 static int lancer_wait_ready(struct be_adapter *adapter)
3331 #define SLIPORT_READY_TIMEOUT 500
3335 for (i = 0; i < SLIPORT_READY_TIMEOUT; i++) {
3336 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3337 if (sliport_status & SLIPORT_STATUS_RDY_MASK)
3343 if (i == SLIPORT_READY_TIMEOUT)
3349 static int lancer_test_and_set_rdy_state(struct be_adapter *adapter)
3352 u32 sliport_status, err, reset_needed;
3353 status = lancer_wait_ready(adapter);
3355 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3356 err = sliport_status & SLIPORT_STATUS_ERR_MASK;
3357 reset_needed = sliport_status & SLIPORT_STATUS_RN_MASK;
3358 if (err && reset_needed) {
3359 iowrite32(SLI_PORT_CONTROL_IP_MASK,
3360 adapter->db + SLIPORT_CONTROL_OFFSET);
3362 /* check adapter has corrected the error */
3363 status = lancer_wait_ready(adapter);
3364 sliport_status = ioread32(adapter->db +
3365 SLIPORT_STATUS_OFFSET);
3366 sliport_status &= (SLIPORT_STATUS_ERR_MASK |
3367 SLIPORT_STATUS_RN_MASK);
3368 if (status || sliport_status)
3370 } else if (err || reset_needed) {
3377 static int __devinit be_probe(struct pci_dev *pdev,
3378 const struct pci_device_id *pdev_id)
3381 struct be_adapter *adapter;
3382 struct net_device *netdev;
3384 status = pci_enable_device(pdev);
3388 status = pci_request_regions(pdev, DRV_NAME);
3391 pci_set_master(pdev);
3393 netdev = alloc_etherdev_mq(sizeof(struct be_adapter), MAX_TX_QS);
3394 if (netdev == NULL) {
3398 adapter = netdev_priv(netdev);
3399 adapter->pdev = pdev;
3400 pci_set_drvdata(pdev, adapter);
3402 status = be_dev_family_check(adapter);
3406 adapter->netdev = netdev;
3407 SET_NETDEV_DEV(netdev, &pdev->dev);
3409 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3411 netdev->features |= NETIF_F_HIGHDMA;
3413 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3415 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3420 status = be_sriov_enable(adapter);
3424 status = be_ctrl_init(adapter);
3428 if (lancer_chip(adapter)) {
3429 status = lancer_test_and_set_rdy_state(adapter);
3431 dev_err(&pdev->dev, "Adapter in non recoverable error\n");
3436 /* sync up with fw's ready state */
3437 if (be_physfn(adapter)) {
3438 status = be_cmd_POST(adapter);
3443 /* tell fw we're ready to fire cmds */
3444 status = be_cmd_fw_init(adapter);
3448 status = be_cmd_reset_function(adapter);
3452 status = be_stats_init(adapter);
3456 status = be_get_config(adapter);
3460 /* The INTR bit may be set in the card when probed by a kdump kernel
3463 if (!lancer_chip(adapter))
3464 be_intr_set(adapter, false);
3466 be_msix_enable(adapter);
3468 INIT_DELAYED_WORK(&adapter->work, be_worker);
3469 adapter->rx_fc = adapter->tx_fc = true;
3471 status = be_setup(adapter);
3475 be_netdev_init(netdev);
3476 status = register_netdev(netdev);
3480 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
3482 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
3488 be_msix_disable(adapter);
3490 be_stats_cleanup(adapter);
3492 be_ctrl_cleanup(adapter);
3494 be_sriov_disable(adapter);
3496 free_netdev(netdev);
3497 pci_set_drvdata(pdev, NULL);
3499 pci_release_regions(pdev);
3501 pci_disable_device(pdev);
3503 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3507 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3509 struct be_adapter *adapter = pci_get_drvdata(pdev);
3510 struct net_device *netdev = adapter->netdev;
3512 cancel_delayed_work_sync(&adapter->work);
3514 be_setup_wol(adapter, true);
3516 netif_device_detach(netdev);
3517 if (netif_running(netdev)) {
3524 be_msix_disable(adapter);
3525 pci_save_state(pdev);
3526 pci_disable_device(pdev);
3527 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3531 static int be_resume(struct pci_dev *pdev)
3534 struct be_adapter *adapter = pci_get_drvdata(pdev);
3535 struct net_device *netdev = adapter->netdev;
3537 netif_device_detach(netdev);
3539 status = pci_enable_device(pdev);
3543 pci_set_power_state(pdev, 0);
3544 pci_restore_state(pdev);
3546 be_msix_enable(adapter);
3547 /* tell fw we're ready to fire cmds */
3548 status = be_cmd_fw_init(adapter);
3553 if (netif_running(netdev)) {
3558 netif_device_attach(netdev);
3561 be_setup_wol(adapter, false);
3563 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
3568 * An FLR will stop BE from DMAing any data.
3570 static void be_shutdown(struct pci_dev *pdev)
3572 struct be_adapter *adapter = pci_get_drvdata(pdev);
3577 cancel_delayed_work_sync(&adapter->work);
3579 netif_device_detach(adapter->netdev);
3582 be_setup_wol(adapter, true);
3584 be_cmd_reset_function(adapter);
3586 pci_disable_device(pdev);
3589 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
3590 pci_channel_state_t state)
3592 struct be_adapter *adapter = pci_get_drvdata(pdev);
3593 struct net_device *netdev = adapter->netdev;
3595 dev_err(&adapter->pdev->dev, "EEH error detected\n");
3597 adapter->eeh_err = true;
3599 netif_device_detach(netdev);
3601 if (netif_running(netdev)) {
3608 if (state == pci_channel_io_perm_failure)
3609 return PCI_ERS_RESULT_DISCONNECT;
3611 pci_disable_device(pdev);
3613 return PCI_ERS_RESULT_NEED_RESET;
3616 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
3618 struct be_adapter *adapter = pci_get_drvdata(pdev);
3621 dev_info(&adapter->pdev->dev, "EEH reset\n");
3622 adapter->eeh_err = false;
3623 adapter->ue_detected = false;
3624 adapter->fw_timeout = false;
3626 status = pci_enable_device(pdev);
3628 return PCI_ERS_RESULT_DISCONNECT;
3630 pci_set_master(pdev);
3631 pci_set_power_state(pdev, 0);
3632 pci_restore_state(pdev);
3634 /* Check if card is ok and fw is ready */
3635 status = be_cmd_POST(adapter);
3637 return PCI_ERS_RESULT_DISCONNECT;
3639 return PCI_ERS_RESULT_RECOVERED;
3642 static void be_eeh_resume(struct pci_dev *pdev)
3645 struct be_adapter *adapter = pci_get_drvdata(pdev);
3646 struct net_device *netdev = adapter->netdev;
3648 dev_info(&adapter->pdev->dev, "EEH resume\n");
3650 pci_save_state(pdev);
3652 /* tell fw we're ready to fire cmds */
3653 status = be_cmd_fw_init(adapter);
3657 status = be_setup(adapter);
3661 if (netif_running(netdev)) {
3662 status = be_open(netdev);
3666 netif_device_attach(netdev);
3669 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
3672 static struct pci_error_handlers be_eeh_handlers = {
3673 .error_detected = be_eeh_err_detected,
3674 .slot_reset = be_eeh_reset,
3675 .resume = be_eeh_resume,
3678 static struct pci_driver be_driver = {
3680 .id_table = be_dev_ids,
3682 .remove = be_remove,
3683 .suspend = be_suspend,
3684 .resume = be_resume,
3685 .shutdown = be_shutdown,
3686 .err_handler = &be_eeh_handlers
3689 static int __init be_init_module(void)
3691 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
3692 rx_frag_size != 2048) {
3693 printk(KERN_WARNING DRV_NAME
3694 " : Module param rx_frag_size must be 2048/4096/8192."
3696 rx_frag_size = 2048;
3699 return pci_register_driver(&be_driver);
3701 module_init(be_init_module);
3703 static void __exit be_exit_module(void)
3705 pci_unregister_driver(&be_driver);
3707 module_exit(be_exit_module);