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 unsigned int num_vfs;
31 module_param(num_vfs, uint, S_IRUGO);
32 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
34 static ushort rx_frag_size = 2048;
35 module_param(rx_frag_size, ushort, S_IRUGO);
36 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
38 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
39 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
40 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
41 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
42 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
43 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
44 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
45 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
48 MODULE_DEVICE_TABLE(pci, be_dev_ids);
49 /* UE Status Low CSR */
50 static const char * const ue_status_low_desc[] = {
84 /* UE Status High CSR */
85 static const char * const ue_status_hi_desc[] = {
120 /* Is BE in a multi-channel mode */
121 static inline bool be_is_mc(struct be_adapter *adapter) {
122 return (adapter->function_mode & FLEX10_MODE ||
123 adapter->function_mode & VNIC_MODE ||
124 adapter->function_mode & UMC_ENABLED);
127 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
129 struct be_dma_mem *mem = &q->dma_mem;
131 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
137 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
138 u16 len, u16 entry_size)
140 struct be_dma_mem *mem = &q->dma_mem;
142 memset(q, 0, sizeof(*q));
144 q->entry_size = entry_size;
145 mem->size = len * entry_size;
146 mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
150 memset(mem->va, 0, mem->size);
154 static void be_intr_set(struct be_adapter *adapter, bool enable)
158 if (adapter->eeh_err)
161 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
163 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
165 if (!enabled && enable)
166 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
167 else if (enabled && !enable)
168 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
172 pci_write_config_dword(adapter->pdev,
173 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
176 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
179 val |= qid & DB_RQ_RING_ID_MASK;
180 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
183 iowrite32(val, adapter->db + DB_RQ_OFFSET);
186 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
189 val |= qid & DB_TXULP_RING_ID_MASK;
190 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
193 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
196 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
197 bool arm, bool clear_int, u16 num_popped)
200 val |= qid & DB_EQ_RING_ID_MASK;
201 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
202 DB_EQ_RING_ID_EXT_MASK_SHIFT);
204 if (adapter->eeh_err)
208 val |= 1 << DB_EQ_REARM_SHIFT;
210 val |= 1 << DB_EQ_CLR_SHIFT;
211 val |= 1 << DB_EQ_EVNT_SHIFT;
212 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
213 iowrite32(val, adapter->db + DB_EQ_OFFSET);
216 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
219 val |= qid & DB_CQ_RING_ID_MASK;
220 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
221 DB_CQ_RING_ID_EXT_MASK_SHIFT);
223 if (adapter->eeh_err)
227 val |= 1 << DB_CQ_REARM_SHIFT;
228 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
229 iowrite32(val, adapter->db + DB_CQ_OFFSET);
232 static int be_mac_addr_set(struct net_device *netdev, void *p)
234 struct be_adapter *adapter = netdev_priv(netdev);
235 struct sockaddr *addr = p;
237 u8 current_mac[ETH_ALEN];
238 u32 pmac_id = adapter->pmac_id;
240 if (!is_valid_ether_addr(addr->sa_data))
241 return -EADDRNOTAVAIL;
243 status = be_cmd_mac_addr_query(adapter, current_mac,
244 MAC_ADDRESS_TYPE_NETWORK, false,
245 adapter->if_handle, 0);
249 if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
250 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
251 adapter->if_handle, &adapter->pmac_id, 0);
255 be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
257 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
260 dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
264 static void populate_be2_stats(struct be_adapter *adapter)
266 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
267 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
268 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
269 struct be_port_rxf_stats_v0 *port_stats =
270 &rxf_stats->port[adapter->port_num];
271 struct be_drv_stats *drvs = &adapter->drv_stats;
273 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
274 drvs->rx_pause_frames = port_stats->rx_pause_frames;
275 drvs->rx_crc_errors = port_stats->rx_crc_errors;
276 drvs->rx_control_frames = port_stats->rx_control_frames;
277 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
278 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
279 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
280 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
281 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
282 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
283 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
284 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
285 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
286 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
287 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
288 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
289 drvs->rx_dropped_header_too_small =
290 port_stats->rx_dropped_header_too_small;
291 drvs->rx_address_mismatch_drops =
292 port_stats->rx_address_mismatch_drops +
293 port_stats->rx_vlan_mismatch_drops;
294 drvs->rx_alignment_symbol_errors =
295 port_stats->rx_alignment_symbol_errors;
297 drvs->tx_pauseframes = port_stats->tx_pauseframes;
298 drvs->tx_controlframes = port_stats->tx_controlframes;
300 if (adapter->port_num)
301 drvs->jabber_events = rxf_stats->port1_jabber_events;
303 drvs->jabber_events = rxf_stats->port0_jabber_events;
304 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
305 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
306 drvs->forwarded_packets = rxf_stats->forwarded_packets;
307 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
308 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
309 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
310 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
313 static void populate_be3_stats(struct be_adapter *adapter)
315 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
316 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
317 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
318 struct be_port_rxf_stats_v1 *port_stats =
319 &rxf_stats->port[adapter->port_num];
320 struct be_drv_stats *drvs = &adapter->drv_stats;
322 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
323 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
324 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
325 drvs->rx_pause_frames = port_stats->rx_pause_frames;
326 drvs->rx_crc_errors = port_stats->rx_crc_errors;
327 drvs->rx_control_frames = port_stats->rx_control_frames;
328 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
329 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
330 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
331 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
332 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
333 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
334 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
335 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
336 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
337 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
338 drvs->rx_dropped_header_too_small =
339 port_stats->rx_dropped_header_too_small;
340 drvs->rx_input_fifo_overflow_drop =
341 port_stats->rx_input_fifo_overflow_drop;
342 drvs->rx_address_mismatch_drops = port_stats->rx_address_mismatch_drops;
343 drvs->rx_alignment_symbol_errors =
344 port_stats->rx_alignment_symbol_errors;
345 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
346 drvs->tx_pauseframes = port_stats->tx_pauseframes;
347 drvs->tx_controlframes = port_stats->tx_controlframes;
348 drvs->jabber_events = port_stats->jabber_events;
349 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
350 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
351 drvs->forwarded_packets = rxf_stats->forwarded_packets;
352 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
353 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
354 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
355 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
358 static void populate_lancer_stats(struct be_adapter *adapter)
361 struct be_drv_stats *drvs = &adapter->drv_stats;
362 struct lancer_pport_stats *pport_stats =
363 pport_stats_from_cmd(adapter);
365 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
366 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
367 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
368 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
369 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
370 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
371 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
372 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
373 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
374 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
375 drvs->rx_dropped_tcp_length =
376 pport_stats->rx_dropped_invalid_tcp_length;
377 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
378 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
379 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
380 drvs->rx_dropped_header_too_small =
381 pport_stats->rx_dropped_header_too_small;
382 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
383 drvs->rx_address_mismatch_drops =
384 pport_stats->rx_address_mismatch_drops +
385 pport_stats->rx_vlan_mismatch_drops;
386 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
387 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
388 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
389 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
390 drvs->jabber_events = pport_stats->rx_jabbers;
391 drvs->forwarded_packets = pport_stats->num_forwards_lo;
392 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
393 drvs->rx_drops_too_many_frags =
394 pport_stats->rx_drops_too_many_frags_lo;
397 static void accumulate_16bit_val(u32 *acc, u16 val)
399 #define lo(x) (x & 0xFFFF)
400 #define hi(x) (x & 0xFFFF0000)
401 bool wrapped = val < lo(*acc);
402 u32 newacc = hi(*acc) + val;
406 ACCESS_ONCE(*acc) = newacc;
409 void be_parse_stats(struct be_adapter *adapter)
411 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
412 struct be_rx_obj *rxo;
415 if (adapter->generation == BE_GEN3) {
416 if (lancer_chip(adapter))
417 populate_lancer_stats(adapter);
419 populate_be3_stats(adapter);
421 populate_be2_stats(adapter);
424 /* as erx_v1 is longer than v0, ok to use v1 defn for v0 access */
425 for_all_rx_queues(adapter, rxo, i) {
426 /* below erx HW counter can actually wrap around after
427 * 65535. Driver accumulates a 32-bit value
429 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
430 (u16)erx->rx_drops_no_fragments[rxo->q.id]);
434 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
435 struct rtnl_link_stats64 *stats)
437 struct be_adapter *adapter = netdev_priv(netdev);
438 struct be_drv_stats *drvs = &adapter->drv_stats;
439 struct be_rx_obj *rxo;
440 struct be_tx_obj *txo;
445 for_all_rx_queues(adapter, rxo, i) {
446 const struct be_rx_stats *rx_stats = rx_stats(rxo);
448 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
449 pkts = rx_stats(rxo)->rx_pkts;
450 bytes = rx_stats(rxo)->rx_bytes;
451 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
452 stats->rx_packets += pkts;
453 stats->rx_bytes += bytes;
454 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
455 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
456 rx_stats(rxo)->rx_drops_no_frags;
459 for_all_tx_queues(adapter, txo, i) {
460 const struct be_tx_stats *tx_stats = tx_stats(txo);
462 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
463 pkts = tx_stats(txo)->tx_pkts;
464 bytes = tx_stats(txo)->tx_bytes;
465 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
466 stats->tx_packets += pkts;
467 stats->tx_bytes += bytes;
470 /* bad pkts received */
471 stats->rx_errors = drvs->rx_crc_errors +
472 drvs->rx_alignment_symbol_errors +
473 drvs->rx_in_range_errors +
474 drvs->rx_out_range_errors +
475 drvs->rx_frame_too_long +
476 drvs->rx_dropped_too_small +
477 drvs->rx_dropped_too_short +
478 drvs->rx_dropped_header_too_small +
479 drvs->rx_dropped_tcp_length +
480 drvs->rx_dropped_runt;
482 /* detailed rx errors */
483 stats->rx_length_errors = drvs->rx_in_range_errors +
484 drvs->rx_out_range_errors +
485 drvs->rx_frame_too_long;
487 stats->rx_crc_errors = drvs->rx_crc_errors;
489 /* frame alignment errors */
490 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
492 /* receiver fifo overrun */
493 /* drops_no_pbuf is no per i/f, it's per BE card */
494 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
495 drvs->rx_input_fifo_overflow_drop +
496 drvs->rx_drops_no_pbuf;
500 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
502 struct net_device *netdev = adapter->netdev;
504 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
505 netif_carrier_off(netdev);
506 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
509 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
510 netif_carrier_on(netdev);
512 netif_carrier_off(netdev);
515 static void be_tx_stats_update(struct be_tx_obj *txo,
516 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
518 struct be_tx_stats *stats = tx_stats(txo);
520 u64_stats_update_begin(&stats->sync);
522 stats->tx_wrbs += wrb_cnt;
523 stats->tx_bytes += copied;
524 stats->tx_pkts += (gso_segs ? gso_segs : 1);
527 u64_stats_update_end(&stats->sync);
530 /* Determine number of WRB entries needed to xmit data in an skb */
531 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
534 int cnt = (skb->len > skb->data_len);
536 cnt += skb_shinfo(skb)->nr_frags;
538 /* to account for hdr wrb */
540 if (lancer_chip(adapter) || !(cnt & 1)) {
543 /* add a dummy to make it an even num */
547 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
551 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
553 wrb->frag_pa_hi = upper_32_bits(addr);
554 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
555 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
558 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
564 vlan_tag = vlan_tx_tag_get(skb);
565 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
566 /* If vlan priority provided by OS is NOT in available bmap */
567 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
568 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
569 adapter->recommended_prio;
574 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
575 struct sk_buff *skb, u32 wrb_cnt, u32 len)
579 memset(hdr, 0, sizeof(*hdr));
581 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
583 if (skb_is_gso(skb)) {
584 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
585 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
586 hdr, skb_shinfo(skb)->gso_size);
587 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
588 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
589 if (lancer_chip(adapter) && adapter->sli_family ==
590 LANCER_A0_SLI_FAMILY) {
591 AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
593 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
595 else if (is_udp_pkt(skb))
596 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
599 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
601 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
602 else if (is_udp_pkt(skb))
603 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
606 if (vlan_tx_tag_present(skb)) {
607 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
608 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
609 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
612 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
613 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
614 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
615 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
618 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
623 be_dws_le_to_cpu(wrb, sizeof(*wrb));
625 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
628 dma_unmap_single(dev, dma, wrb->frag_len,
631 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
635 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
636 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
640 struct device *dev = &adapter->pdev->dev;
641 struct sk_buff *first_skb = skb;
642 struct be_eth_wrb *wrb;
643 struct be_eth_hdr_wrb *hdr;
644 bool map_single = false;
647 hdr = queue_head_node(txq);
649 map_head = txq->head;
651 if (skb->len > skb->data_len) {
652 int len = skb_headlen(skb);
653 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
654 if (dma_mapping_error(dev, busaddr))
657 wrb = queue_head_node(txq);
658 wrb_fill(wrb, busaddr, len);
659 be_dws_cpu_to_le(wrb, sizeof(*wrb));
664 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
665 const struct skb_frag_struct *frag =
666 &skb_shinfo(skb)->frags[i];
667 busaddr = skb_frag_dma_map(dev, frag, 0,
668 skb_frag_size(frag), DMA_TO_DEVICE);
669 if (dma_mapping_error(dev, busaddr))
671 wrb = queue_head_node(txq);
672 wrb_fill(wrb, busaddr, skb_frag_size(frag));
673 be_dws_cpu_to_le(wrb, sizeof(*wrb));
675 copied += skb_frag_size(frag);
679 wrb = queue_head_node(txq);
681 be_dws_cpu_to_le(wrb, sizeof(*wrb));
685 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
686 be_dws_cpu_to_le(hdr, sizeof(*hdr));
690 txq->head = map_head;
692 wrb = queue_head_node(txq);
693 unmap_tx_frag(dev, wrb, map_single);
695 copied -= wrb->frag_len;
701 static netdev_tx_t be_xmit(struct sk_buff *skb,
702 struct net_device *netdev)
704 struct be_adapter *adapter = netdev_priv(netdev);
705 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
706 struct be_queue_info *txq = &txo->q;
707 u32 wrb_cnt = 0, copied = 0;
708 u32 start = txq->head;
709 bool dummy_wrb, stopped = false;
711 /* For vlan tagged pkts, BE
712 * 1) calculates checksum even when CSO is not requested
713 * 2) calculates checksum wrongly for padded pkt less than
715 * As a workaround disable TX vlan offloading in such cases.
717 if (unlikely(vlan_tx_tag_present(skb) &&
718 (skb->ip_summed != CHECKSUM_PARTIAL || skb->len <= 60))) {
719 skb = skb_share_check(skb, GFP_ATOMIC);
723 skb = __vlan_put_tag(skb, be_get_tx_vlan_tag(adapter, skb));
730 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
732 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
734 /* record the sent skb in the sent_skb table */
735 BUG_ON(txo->sent_skb_list[start]);
736 txo->sent_skb_list[start] = skb;
738 /* Ensure txq has space for the next skb; Else stop the queue
739 * *BEFORE* ringing the tx doorbell, so that we serialze the
740 * tx compls of the current transmit which'll wake up the queue
742 atomic_add(wrb_cnt, &txq->used);
743 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
745 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
749 be_txq_notify(adapter, txq->id, wrb_cnt);
751 be_tx_stats_update(txo, wrb_cnt, copied,
752 skb_shinfo(skb)->gso_segs, stopped);
755 dev_kfree_skb_any(skb);
761 static int be_change_mtu(struct net_device *netdev, int new_mtu)
763 struct be_adapter *adapter = netdev_priv(netdev);
764 if (new_mtu < BE_MIN_MTU ||
765 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
766 (ETH_HLEN + ETH_FCS_LEN))) {
767 dev_info(&adapter->pdev->dev,
768 "MTU must be between %d and %d bytes\n",
770 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
773 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
774 netdev->mtu, new_mtu);
775 netdev->mtu = new_mtu;
780 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
781 * If the user configures more, place BE in vlan promiscuous mode.
783 static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num)
785 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf_num];
786 u16 vtag[BE_NUM_VLANS_SUPPORTED];
791 vtag[0] = cpu_to_le16(vf_cfg->vlan_tag);
792 status = be_cmd_vlan_config(adapter, vf_cfg->if_handle, vtag,
796 /* No need to further configure vids if in promiscuous mode */
797 if (adapter->promiscuous)
800 if (adapter->vlans_added <= adapter->max_vlans) {
801 /* Construct VLAN Table to give to HW */
802 for (i = 0; i < VLAN_N_VID; i++) {
803 if (adapter->vlan_tag[i]) {
804 vtag[ntags] = cpu_to_le16(i);
808 status = be_cmd_vlan_config(adapter, adapter->if_handle,
811 status = be_cmd_vlan_config(adapter, adapter->if_handle,
818 static int be_vlan_add_vid(struct net_device *netdev, u16 vid)
820 struct be_adapter *adapter = netdev_priv(netdev);
823 if (!be_physfn(adapter)) {
828 adapter->vlan_tag[vid] = 1;
829 if (adapter->vlans_added <= (adapter->max_vlans + 1))
830 status = be_vid_config(adapter, false, 0);
833 adapter->vlans_added++;
835 adapter->vlan_tag[vid] = 0;
840 static int be_vlan_rem_vid(struct net_device *netdev, u16 vid)
842 struct be_adapter *adapter = netdev_priv(netdev);
845 if (!be_physfn(adapter)) {
850 adapter->vlan_tag[vid] = 0;
851 if (adapter->vlans_added <= adapter->max_vlans)
852 status = be_vid_config(adapter, false, 0);
855 adapter->vlans_added--;
857 adapter->vlan_tag[vid] = 1;
862 static void be_set_rx_mode(struct net_device *netdev)
864 struct be_adapter *adapter = netdev_priv(netdev);
866 if (netdev->flags & IFF_PROMISC) {
867 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
868 adapter->promiscuous = true;
872 /* BE was previously in promiscuous mode; disable it */
873 if (adapter->promiscuous) {
874 adapter->promiscuous = false;
875 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
877 if (adapter->vlans_added)
878 be_vid_config(adapter, false, 0);
881 /* Enable multicast promisc if num configured exceeds what we support */
882 if (netdev->flags & IFF_ALLMULTI ||
883 netdev_mc_count(netdev) > BE_MAX_MC) {
884 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
888 be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
893 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
895 struct be_adapter *adapter = netdev_priv(netdev);
896 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
899 if (!sriov_enabled(adapter))
902 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
905 if (lancer_chip(adapter)) {
906 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
908 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
909 vf_cfg->pmac_id, vf + 1);
911 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
912 &vf_cfg->pmac_id, vf + 1);
916 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
919 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
924 static int be_get_vf_config(struct net_device *netdev, int vf,
925 struct ifla_vf_info *vi)
927 struct be_adapter *adapter = netdev_priv(netdev);
928 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
930 if (!sriov_enabled(adapter))
933 if (vf >= adapter->num_vfs)
937 vi->tx_rate = vf_cfg->tx_rate;
938 vi->vlan = vf_cfg->vlan_tag;
940 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
945 static int be_set_vf_vlan(struct net_device *netdev,
946 int vf, u16 vlan, u8 qos)
948 struct be_adapter *adapter = netdev_priv(netdev);
951 if (!sriov_enabled(adapter))
954 if (vf >= adapter->num_vfs || vlan > 4095)
958 adapter->vf_cfg[vf].vlan_tag = vlan;
959 adapter->vlans_added++;
961 adapter->vf_cfg[vf].vlan_tag = 0;
962 adapter->vlans_added--;
965 status = be_vid_config(adapter, true, vf);
968 dev_info(&adapter->pdev->dev,
969 "VLAN %d config on VF %d failed\n", vlan, vf);
973 static int be_set_vf_tx_rate(struct net_device *netdev,
976 struct be_adapter *adapter = netdev_priv(netdev);
979 if (!sriov_enabled(adapter))
982 if (vf >= adapter->num_vfs)
985 if (rate < 100 || rate > 10000) {
986 dev_err(&adapter->pdev->dev,
987 "tx rate must be between 100 and 10000 Mbps\n");
991 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
994 dev_err(&adapter->pdev->dev,
995 "tx rate %d on VF %d failed\n", rate, vf);
997 adapter->vf_cfg[vf].tx_rate = rate;
1001 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1003 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1004 ulong now = jiffies;
1005 ulong delta = now - stats->rx_jiffies;
1007 unsigned int start, eqd;
1009 if (!eqo->enable_aic) {
1014 if (eqo->idx >= adapter->num_rx_qs)
1017 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1019 /* Wrapped around */
1020 if (time_before(now, stats->rx_jiffies)) {
1021 stats->rx_jiffies = now;
1025 /* Update once a second */
1030 start = u64_stats_fetch_begin_bh(&stats->sync);
1031 pkts = stats->rx_pkts;
1032 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1034 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1035 stats->rx_pkts_prev = pkts;
1036 stats->rx_jiffies = now;
1037 eqd = (stats->rx_pps / 110000) << 3;
1038 eqd = min(eqd, eqo->max_eqd);
1039 eqd = max(eqd, eqo->min_eqd);
1044 if (eqd != eqo->cur_eqd) {
1045 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1050 static void be_rx_stats_update(struct be_rx_obj *rxo,
1051 struct be_rx_compl_info *rxcp)
1053 struct be_rx_stats *stats = rx_stats(rxo);
1055 u64_stats_update_begin(&stats->sync);
1057 stats->rx_bytes += rxcp->pkt_size;
1059 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1060 stats->rx_mcast_pkts++;
1062 stats->rx_compl_err++;
1063 u64_stats_update_end(&stats->sync);
1066 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1068 /* L4 checksum is not reliable for non TCP/UDP packets.
1069 * Also ignore ipcksm for ipv6 pkts */
1070 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1071 (rxcp->ip_csum || rxcp->ipv6);
1074 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1077 struct be_adapter *adapter = rxo->adapter;
1078 struct be_rx_page_info *rx_page_info;
1079 struct be_queue_info *rxq = &rxo->q;
1081 rx_page_info = &rxo->page_info_tbl[frag_idx];
1082 BUG_ON(!rx_page_info->page);
1084 if (rx_page_info->last_page_user) {
1085 dma_unmap_page(&adapter->pdev->dev,
1086 dma_unmap_addr(rx_page_info, bus),
1087 adapter->big_page_size, DMA_FROM_DEVICE);
1088 rx_page_info->last_page_user = false;
1091 atomic_dec(&rxq->used);
1092 return rx_page_info;
1095 /* Throwaway the data in the Rx completion */
1096 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1097 struct be_rx_compl_info *rxcp)
1099 struct be_queue_info *rxq = &rxo->q;
1100 struct be_rx_page_info *page_info;
1101 u16 i, num_rcvd = rxcp->num_rcvd;
1103 for (i = 0; i < num_rcvd; i++) {
1104 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1105 put_page(page_info->page);
1106 memset(page_info, 0, sizeof(*page_info));
1107 index_inc(&rxcp->rxq_idx, rxq->len);
1112 * skb_fill_rx_data forms a complete skb for an ether frame
1113 * indicated by rxcp.
1115 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1116 struct be_rx_compl_info *rxcp)
1118 struct be_queue_info *rxq = &rxo->q;
1119 struct be_rx_page_info *page_info;
1121 u16 hdr_len, curr_frag_len, remaining;
1124 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1125 start = page_address(page_info->page) + page_info->page_offset;
1128 /* Copy data in the first descriptor of this completion */
1129 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1131 /* Copy the header portion into skb_data */
1132 hdr_len = min(BE_HDR_LEN, curr_frag_len);
1133 memcpy(skb->data, start, hdr_len);
1134 skb->len = curr_frag_len;
1135 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1136 /* Complete packet has now been moved to data */
1137 put_page(page_info->page);
1139 skb->tail += curr_frag_len;
1141 skb_shinfo(skb)->nr_frags = 1;
1142 skb_frag_set_page(skb, 0, page_info->page);
1143 skb_shinfo(skb)->frags[0].page_offset =
1144 page_info->page_offset + hdr_len;
1145 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1146 skb->data_len = curr_frag_len - hdr_len;
1147 skb->truesize += rx_frag_size;
1148 skb->tail += hdr_len;
1150 page_info->page = NULL;
1152 if (rxcp->pkt_size <= rx_frag_size) {
1153 BUG_ON(rxcp->num_rcvd != 1);
1157 /* More frags present for this completion */
1158 index_inc(&rxcp->rxq_idx, rxq->len);
1159 remaining = rxcp->pkt_size - curr_frag_len;
1160 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1161 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1162 curr_frag_len = min(remaining, rx_frag_size);
1164 /* Coalesce all frags from the same physical page in one slot */
1165 if (page_info->page_offset == 0) {
1168 skb_frag_set_page(skb, j, page_info->page);
1169 skb_shinfo(skb)->frags[j].page_offset =
1170 page_info->page_offset;
1171 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1172 skb_shinfo(skb)->nr_frags++;
1174 put_page(page_info->page);
1177 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1178 skb->len += curr_frag_len;
1179 skb->data_len += curr_frag_len;
1180 skb->truesize += rx_frag_size;
1181 remaining -= curr_frag_len;
1182 index_inc(&rxcp->rxq_idx, rxq->len);
1183 page_info->page = NULL;
1185 BUG_ON(j > MAX_SKB_FRAGS);
1188 /* Process the RX completion indicated by rxcp when GRO is disabled */
1189 static void be_rx_compl_process(struct be_rx_obj *rxo,
1190 struct be_rx_compl_info *rxcp)
1192 struct be_adapter *adapter = rxo->adapter;
1193 struct net_device *netdev = adapter->netdev;
1194 struct sk_buff *skb;
1196 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1197 if (unlikely(!skb)) {
1198 rx_stats(rxo)->rx_drops_no_skbs++;
1199 be_rx_compl_discard(rxo, rxcp);
1203 skb_fill_rx_data(rxo, skb, rxcp);
1205 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1206 skb->ip_summed = CHECKSUM_UNNECESSARY;
1208 skb_checksum_none_assert(skb);
1210 skb->protocol = eth_type_trans(skb, netdev);
1211 if (netdev->features & NETIF_F_RXHASH)
1212 skb->rxhash = rxcp->rss_hash;
1216 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1218 netif_receive_skb(skb);
1221 /* Process the RX completion indicated by rxcp when GRO is enabled */
1222 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1223 struct be_rx_compl_info *rxcp)
1225 struct be_adapter *adapter = rxo->adapter;
1226 struct be_rx_page_info *page_info;
1227 struct sk_buff *skb = NULL;
1228 struct be_queue_info *rxq = &rxo->q;
1229 u16 remaining, curr_frag_len;
1232 skb = napi_get_frags(napi);
1234 be_rx_compl_discard(rxo, rxcp);
1238 remaining = rxcp->pkt_size;
1239 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1240 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1242 curr_frag_len = min(remaining, rx_frag_size);
1244 /* Coalesce all frags from the same physical page in one slot */
1245 if (i == 0 || page_info->page_offset == 0) {
1246 /* First frag or Fresh page */
1248 skb_frag_set_page(skb, j, page_info->page);
1249 skb_shinfo(skb)->frags[j].page_offset =
1250 page_info->page_offset;
1251 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1253 put_page(page_info->page);
1255 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1256 skb->truesize += rx_frag_size;
1257 remaining -= curr_frag_len;
1258 index_inc(&rxcp->rxq_idx, rxq->len);
1259 memset(page_info, 0, sizeof(*page_info));
1261 BUG_ON(j > MAX_SKB_FRAGS);
1263 skb_shinfo(skb)->nr_frags = j + 1;
1264 skb->len = rxcp->pkt_size;
1265 skb->data_len = rxcp->pkt_size;
1266 skb->ip_summed = CHECKSUM_UNNECESSARY;
1267 if (adapter->netdev->features & NETIF_F_RXHASH)
1268 skb->rxhash = rxcp->rss_hash;
1271 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1273 napi_gro_frags(napi);
1276 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1277 struct be_rx_compl_info *rxcp)
1280 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1281 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1282 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1283 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1284 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1286 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1288 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1290 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1292 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1294 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1296 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1298 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp);
1300 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1302 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1305 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1308 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1309 struct be_rx_compl_info *rxcp)
1312 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1313 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1314 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1315 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1316 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1318 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1320 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1322 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1324 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1326 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1328 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1330 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp);
1332 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1334 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1337 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1340 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1342 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1343 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1344 struct be_adapter *adapter = rxo->adapter;
1346 /* For checking the valid bit it is Ok to use either definition as the
1347 * valid bit is at the same position in both v0 and v1 Rx compl */
1348 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1352 be_dws_le_to_cpu(compl, sizeof(*compl));
1354 if (adapter->be3_native)
1355 be_parse_rx_compl_v1(compl, rxcp);
1357 be_parse_rx_compl_v0(compl, rxcp);
1360 /* vlanf could be wrongly set in some cards.
1361 * ignore if vtm is not set */
1362 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1365 if (!lancer_chip(adapter))
1366 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1368 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1369 !adapter->vlan_tag[rxcp->vlan_tag])
1373 /* As the compl has been parsed, reset it; we wont touch it again */
1374 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1376 queue_tail_inc(&rxo->cq);
1380 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1382 u32 order = get_order(size);
1386 return alloc_pages(gfp, order);
1390 * Allocate a page, split it to fragments of size rx_frag_size and post as
1391 * receive buffers to BE
1393 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1395 struct be_adapter *adapter = rxo->adapter;
1396 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1397 struct be_queue_info *rxq = &rxo->q;
1398 struct page *pagep = NULL;
1399 struct be_eth_rx_d *rxd;
1400 u64 page_dmaaddr = 0, frag_dmaaddr;
1401 u32 posted, page_offset = 0;
1403 page_info = &rxo->page_info_tbl[rxq->head];
1404 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1406 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1407 if (unlikely(!pagep)) {
1408 rx_stats(rxo)->rx_post_fail++;
1411 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1412 0, adapter->big_page_size,
1414 page_info->page_offset = 0;
1417 page_info->page_offset = page_offset + rx_frag_size;
1419 page_offset = page_info->page_offset;
1420 page_info->page = pagep;
1421 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1422 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1424 rxd = queue_head_node(rxq);
1425 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1426 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1428 /* Any space left in the current big page for another frag? */
1429 if ((page_offset + rx_frag_size + rx_frag_size) >
1430 adapter->big_page_size) {
1432 page_info->last_page_user = true;
1435 prev_page_info = page_info;
1436 queue_head_inc(rxq);
1437 page_info = &rxo->page_info_tbl[rxq->head];
1440 prev_page_info->last_page_user = true;
1443 atomic_add(posted, &rxq->used);
1444 be_rxq_notify(adapter, rxq->id, posted);
1445 } else if (atomic_read(&rxq->used) == 0) {
1446 /* Let be_worker replenish when memory is available */
1447 rxo->rx_post_starved = true;
1451 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1453 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1455 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1459 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1461 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1463 queue_tail_inc(tx_cq);
1467 static u16 be_tx_compl_process(struct be_adapter *adapter,
1468 struct be_tx_obj *txo, u16 last_index)
1470 struct be_queue_info *txq = &txo->q;
1471 struct be_eth_wrb *wrb;
1472 struct sk_buff **sent_skbs = txo->sent_skb_list;
1473 struct sk_buff *sent_skb;
1474 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1475 bool unmap_skb_hdr = true;
1477 sent_skb = sent_skbs[txq->tail];
1479 sent_skbs[txq->tail] = NULL;
1481 /* skip header wrb */
1482 queue_tail_inc(txq);
1485 cur_index = txq->tail;
1486 wrb = queue_tail_node(txq);
1487 unmap_tx_frag(&adapter->pdev->dev, wrb,
1488 (unmap_skb_hdr && skb_headlen(sent_skb)));
1489 unmap_skb_hdr = false;
1492 queue_tail_inc(txq);
1493 } while (cur_index != last_index);
1495 kfree_skb(sent_skb);
1499 /* Return the number of events in the event queue */
1500 static inline int events_get(struct be_eq_obj *eqo)
1502 struct be_eq_entry *eqe;
1506 eqe = queue_tail_node(&eqo->q);
1513 queue_tail_inc(&eqo->q);
1519 static int event_handle(struct be_eq_obj *eqo)
1522 int num = events_get(eqo);
1524 /* Deal with any spurious interrupts that come without events */
1528 be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num);
1530 napi_schedule(&eqo->napi);
1535 /* Leaves the EQ is disarmed state */
1536 static void be_eq_clean(struct be_eq_obj *eqo)
1538 int num = events_get(eqo);
1540 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1543 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1545 struct be_rx_page_info *page_info;
1546 struct be_queue_info *rxq = &rxo->q;
1547 struct be_queue_info *rx_cq = &rxo->cq;
1548 struct be_rx_compl_info *rxcp;
1551 /* First cleanup pending rx completions */
1552 while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1553 be_rx_compl_discard(rxo, rxcp);
1554 be_cq_notify(rxo->adapter, rx_cq->id, false, 1);
1557 /* Then free posted rx buffer that were not used */
1558 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1559 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1560 page_info = get_rx_page_info(rxo, tail);
1561 put_page(page_info->page);
1562 memset(page_info, 0, sizeof(*page_info));
1564 BUG_ON(atomic_read(&rxq->used));
1565 rxq->tail = rxq->head = 0;
1568 static void be_tx_compl_clean(struct be_adapter *adapter)
1570 struct be_tx_obj *txo;
1571 struct be_queue_info *txq;
1572 struct be_eth_tx_compl *txcp;
1573 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1574 struct sk_buff *sent_skb;
1576 int i, pending_txqs;
1578 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1580 pending_txqs = adapter->num_tx_qs;
1582 for_all_tx_queues(adapter, txo, i) {
1584 while ((txcp = be_tx_compl_get(&txo->cq))) {
1586 AMAP_GET_BITS(struct amap_eth_tx_compl,
1588 num_wrbs += be_tx_compl_process(adapter, txo,
1593 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1594 atomic_sub(num_wrbs, &txq->used);
1598 if (atomic_read(&txq->used) == 0)
1602 if (pending_txqs == 0 || ++timeo > 200)
1608 for_all_tx_queues(adapter, txo, i) {
1610 if (atomic_read(&txq->used))
1611 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1612 atomic_read(&txq->used));
1614 /* free posted tx for which compls will never arrive */
1615 while (atomic_read(&txq->used)) {
1616 sent_skb = txo->sent_skb_list[txq->tail];
1617 end_idx = txq->tail;
1618 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1620 index_adv(&end_idx, num_wrbs - 1, txq->len);
1621 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1622 atomic_sub(num_wrbs, &txq->used);
1627 static void be_evt_queues_destroy(struct be_adapter *adapter)
1629 struct be_eq_obj *eqo;
1632 for_all_evt_queues(adapter, eqo, i) {
1635 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1636 be_queue_free(adapter, &eqo->q);
1640 static int be_evt_queues_create(struct be_adapter *adapter)
1642 struct be_queue_info *eq;
1643 struct be_eq_obj *eqo;
1646 adapter->num_evt_qs = num_irqs(adapter);
1648 for_all_evt_queues(adapter, eqo, i) {
1649 eqo->adapter = adapter;
1650 eqo->tx_budget = BE_TX_BUDGET;
1652 eqo->max_eqd = BE_MAX_EQD;
1653 eqo->enable_aic = true;
1656 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1657 sizeof(struct be_eq_entry));
1661 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1668 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1670 struct be_queue_info *q;
1672 q = &adapter->mcc_obj.q;
1674 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1675 be_queue_free(adapter, q);
1677 q = &adapter->mcc_obj.cq;
1679 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1680 be_queue_free(adapter, q);
1683 /* Must be called only after TX qs are created as MCC shares TX EQ */
1684 static int be_mcc_queues_create(struct be_adapter *adapter)
1686 struct be_queue_info *q, *cq;
1688 cq = &adapter->mcc_obj.cq;
1689 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1690 sizeof(struct be_mcc_compl)))
1693 /* Use the default EQ for MCC completions */
1694 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1697 q = &adapter->mcc_obj.q;
1698 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1699 goto mcc_cq_destroy;
1701 if (be_cmd_mccq_create(adapter, q, cq))
1707 be_queue_free(adapter, q);
1709 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1711 be_queue_free(adapter, cq);
1716 static void be_tx_queues_destroy(struct be_adapter *adapter)
1718 struct be_queue_info *q;
1719 struct be_tx_obj *txo;
1722 for_all_tx_queues(adapter, txo, i) {
1725 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1726 be_queue_free(adapter, q);
1730 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1731 be_queue_free(adapter, q);
1735 static int be_num_txqs_want(struct be_adapter *adapter)
1737 if (sriov_enabled(adapter) || be_is_mc(adapter) ||
1738 lancer_chip(adapter) || !be_physfn(adapter) ||
1739 adapter->generation == BE_GEN2)
1745 static int be_tx_cqs_create(struct be_adapter *adapter)
1747 struct be_queue_info *cq, *eq;
1749 struct be_tx_obj *txo;
1752 adapter->num_tx_qs = be_num_txqs_want(adapter);
1753 if (adapter->num_tx_qs != MAX_TX_QS) {
1755 netif_set_real_num_tx_queues(adapter->netdev,
1756 adapter->num_tx_qs);
1760 for_all_tx_queues(adapter, txo, i) {
1762 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
1763 sizeof(struct be_eth_tx_compl));
1767 /* If num_evt_qs is less than num_tx_qs, then more than
1768 * one txq share an eq
1770 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1771 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
1778 static int be_tx_qs_create(struct be_adapter *adapter)
1780 struct be_tx_obj *txo;
1783 for_all_tx_queues(adapter, txo, i) {
1784 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
1785 sizeof(struct be_eth_wrb));
1789 status = be_cmd_txq_create(adapter, &txo->q, &txo->cq);
1797 static void be_rx_cqs_destroy(struct be_adapter *adapter)
1799 struct be_queue_info *q;
1800 struct be_rx_obj *rxo;
1803 for_all_rx_queues(adapter, rxo, i) {
1806 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1807 be_queue_free(adapter, q);
1811 static int be_rx_cqs_create(struct be_adapter *adapter)
1813 struct be_queue_info *eq, *cq;
1814 struct be_rx_obj *rxo;
1817 /* We'll create as many RSS rings as there are irqs.
1818 * But when there's only one irq there's no use creating RSS rings
1820 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
1821 num_irqs(adapter) + 1 : 1;
1823 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1824 for_all_rx_queues(adapter, rxo, i) {
1825 rxo->adapter = adapter;
1827 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1828 sizeof(struct be_eth_rx_compl));
1832 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1833 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
1838 if (adapter->num_rx_qs != MAX_RX_QS)
1839 dev_info(&adapter->pdev->dev,
1840 "Created only %d receive queues", adapter->num_rx_qs);
1845 static irqreturn_t be_intx(int irq, void *dev)
1847 struct be_adapter *adapter = dev;
1850 /* With INTx only one EQ is used */
1851 num_evts = event_handle(&adapter->eq_obj[0]);
1858 static irqreturn_t be_msix(int irq, void *dev)
1860 struct be_eq_obj *eqo = dev;
1866 static inline bool do_gro(struct be_rx_compl_info *rxcp)
1868 return (rxcp->tcpf && !rxcp->err) ? true : false;
1871 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
1874 struct be_adapter *adapter = rxo->adapter;
1875 struct be_queue_info *rx_cq = &rxo->cq;
1876 struct be_rx_compl_info *rxcp;
1879 for (work_done = 0; work_done < budget; work_done++) {
1880 rxcp = be_rx_compl_get(rxo);
1884 /* Is it a flush compl that has no data */
1885 if (unlikely(rxcp->num_rcvd == 0))
1888 /* Discard compl with partial DMA Lancer B0 */
1889 if (unlikely(!rxcp->pkt_size)) {
1890 be_rx_compl_discard(rxo, rxcp);
1894 /* On BE drop pkts that arrive due to imperfect filtering in
1895 * promiscuous mode on some skews
1897 if (unlikely(rxcp->port != adapter->port_num &&
1898 !lancer_chip(adapter))) {
1899 be_rx_compl_discard(rxo, rxcp);
1904 be_rx_compl_process_gro(rxo, napi, rxcp);
1906 be_rx_compl_process(rxo, rxcp);
1908 be_rx_stats_update(rxo, rxcp);
1912 be_cq_notify(adapter, rx_cq->id, true, work_done);
1914 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
1915 be_post_rx_frags(rxo, GFP_ATOMIC);
1921 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
1922 int budget, int idx)
1924 struct be_eth_tx_compl *txcp;
1925 int num_wrbs = 0, work_done;
1927 for (work_done = 0; work_done < budget; work_done++) {
1928 txcp = be_tx_compl_get(&txo->cq);
1931 num_wrbs += be_tx_compl_process(adapter, txo,
1932 AMAP_GET_BITS(struct amap_eth_tx_compl,
1937 be_cq_notify(adapter, txo->cq.id, true, work_done);
1938 atomic_sub(num_wrbs, &txo->q.used);
1940 /* As Tx wrbs have been freed up, wake up netdev queue
1941 * if it was stopped due to lack of tx wrbs. */
1942 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
1943 atomic_read(&txo->q.used) < txo->q.len / 2) {
1944 netif_wake_subqueue(adapter->netdev, idx);
1947 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
1948 tx_stats(txo)->tx_compl += work_done;
1949 u64_stats_update_end(&tx_stats(txo)->sync_compl);
1951 return (work_done < budget); /* Done */
1954 int be_poll(struct napi_struct *napi, int budget)
1956 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
1957 struct be_adapter *adapter = eqo->adapter;
1958 int max_work = 0, work, i;
1961 /* Process all TXQs serviced by this EQ */
1962 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
1963 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
1969 /* This loop will iterate twice for EQ0 in which
1970 * completions of the last RXQ (default one) are also processed
1971 * For other EQs the loop iterates only once
1973 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
1974 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
1975 max_work = max(work, max_work);
1978 if (is_mcc_eqo(eqo))
1979 be_process_mcc(adapter);
1981 if (max_work < budget) {
1982 napi_complete(napi);
1983 be_eq_notify(adapter, eqo->q.id, true, false, 0);
1985 /* As we'll continue in polling mode, count and clear events */
1986 be_eq_notify(adapter, eqo->q.id, false, false, events_get(eqo));
1991 void be_detect_dump_ue(struct be_adapter *adapter)
1993 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
1994 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
1997 if (adapter->eeh_err || adapter->ue_detected)
2000 if (lancer_chip(adapter)) {
2001 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2002 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2003 sliport_err1 = ioread32(adapter->db +
2004 SLIPORT_ERROR1_OFFSET);
2005 sliport_err2 = ioread32(adapter->db +
2006 SLIPORT_ERROR2_OFFSET);
2009 pci_read_config_dword(adapter->pdev,
2010 PCICFG_UE_STATUS_LOW, &ue_lo);
2011 pci_read_config_dword(adapter->pdev,
2012 PCICFG_UE_STATUS_HIGH, &ue_hi);
2013 pci_read_config_dword(adapter->pdev,
2014 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2015 pci_read_config_dword(adapter->pdev,
2016 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2018 ue_lo = (ue_lo & (~ue_lo_mask));
2019 ue_hi = (ue_hi & (~ue_hi_mask));
2022 if (ue_lo || ue_hi ||
2023 sliport_status & SLIPORT_STATUS_ERR_MASK) {
2024 adapter->ue_detected = true;
2025 adapter->eeh_err = true;
2026 dev_err(&adapter->pdev->dev,
2027 "Unrecoverable error in the card\n");
2031 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2033 dev_err(&adapter->pdev->dev,
2034 "UE: %s bit set\n", ue_status_low_desc[i]);
2038 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2040 dev_err(&adapter->pdev->dev,
2041 "UE: %s bit set\n", ue_status_hi_desc[i]);
2045 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2046 dev_err(&adapter->pdev->dev,
2047 "sliport status 0x%x\n", sliport_status);
2048 dev_err(&adapter->pdev->dev,
2049 "sliport error1 0x%x\n", sliport_err1);
2050 dev_err(&adapter->pdev->dev,
2051 "sliport error2 0x%x\n", sliport_err2);
2055 static void be_msix_disable(struct be_adapter *adapter)
2057 if (msix_enabled(adapter)) {
2058 pci_disable_msix(adapter->pdev);
2059 adapter->num_msix_vec = 0;
2063 static uint be_num_rss_want(struct be_adapter *adapter)
2065 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2066 adapter->num_vfs == 0 && be_physfn(adapter) &&
2068 return (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2073 static void be_msix_enable(struct be_adapter *adapter)
2075 #define BE_MIN_MSIX_VECTORS 1
2076 int i, status, num_vec;
2078 /* If RSS queues are not used, need a vec for default RX Q */
2079 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2080 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2082 for (i = 0; i < num_vec; i++)
2083 adapter->msix_entries[i].entry = i;
2085 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2088 } else if (status >= BE_MIN_MSIX_VECTORS) {
2090 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2096 adapter->num_msix_vec = num_vec;
2100 static int be_sriov_enable(struct be_adapter *adapter)
2102 be_check_sriov_fn_type(adapter);
2104 #ifdef CONFIG_PCI_IOV
2105 if (be_physfn(adapter) && num_vfs) {
2109 pos = pci_find_ext_capability(adapter->pdev,
2110 PCI_EXT_CAP_ID_SRIOV);
2111 pci_read_config_word(adapter->pdev,
2112 pos + PCI_SRIOV_TOTAL_VF, &dev_vfs);
2114 adapter->num_vfs = min_t(u16, num_vfs, dev_vfs);
2115 if (adapter->num_vfs != num_vfs)
2116 dev_info(&adapter->pdev->dev,
2117 "Device supports %d VFs and not %d\n",
2118 adapter->num_vfs, num_vfs);
2120 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
2122 adapter->num_vfs = 0;
2124 if (adapter->num_vfs) {
2125 adapter->vf_cfg = kcalloc(num_vfs,
2126 sizeof(struct be_vf_cfg),
2128 if (!adapter->vf_cfg)
2136 static void be_sriov_disable(struct be_adapter *adapter)
2138 #ifdef CONFIG_PCI_IOV
2139 if (sriov_enabled(adapter)) {
2140 pci_disable_sriov(adapter->pdev);
2141 kfree(adapter->vf_cfg);
2142 adapter->num_vfs = 0;
2147 static inline int be_msix_vec_get(struct be_adapter *adapter,
2148 struct be_eq_obj *eqo)
2150 return adapter->msix_entries[eqo->idx].vector;
2153 static int be_msix_register(struct be_adapter *adapter)
2155 struct net_device *netdev = adapter->netdev;
2156 struct be_eq_obj *eqo;
2159 for_all_evt_queues(adapter, eqo, i) {
2160 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2161 vec = be_msix_vec_get(adapter, eqo);
2162 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2169 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2170 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2171 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2173 be_msix_disable(adapter);
2177 static int be_irq_register(struct be_adapter *adapter)
2179 struct net_device *netdev = adapter->netdev;
2182 if (msix_enabled(adapter)) {
2183 status = be_msix_register(adapter);
2186 /* INTx is not supported for VF */
2187 if (!be_physfn(adapter))
2192 netdev->irq = adapter->pdev->irq;
2193 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2196 dev_err(&adapter->pdev->dev,
2197 "INTx request IRQ failed - err %d\n", status);
2201 adapter->isr_registered = true;
2205 static void be_irq_unregister(struct be_adapter *adapter)
2207 struct net_device *netdev = adapter->netdev;
2208 struct be_eq_obj *eqo;
2211 if (!adapter->isr_registered)
2215 if (!msix_enabled(adapter)) {
2216 free_irq(netdev->irq, adapter);
2221 for_all_evt_queues(adapter, eqo, i)
2222 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2225 adapter->isr_registered = false;
2228 static void be_rx_qs_destroy(struct be_adapter *adapter)
2230 struct be_queue_info *q;
2231 struct be_rx_obj *rxo;
2234 for_all_rx_queues(adapter, rxo, i) {
2237 be_cmd_rxq_destroy(adapter, q);
2238 /* After the rxq is invalidated, wait for a grace time
2239 * of 1ms for all dma to end and the flush compl to
2243 be_rx_cq_clean(rxo);
2245 be_queue_free(adapter, q);
2249 static int be_close(struct net_device *netdev)
2251 struct be_adapter *adapter = netdev_priv(netdev);
2252 struct be_eq_obj *eqo;
2255 be_async_mcc_disable(adapter);
2257 if (!lancer_chip(adapter))
2258 be_intr_set(adapter, false);
2260 for_all_evt_queues(adapter, eqo, i) {
2261 napi_disable(&eqo->napi);
2262 if (msix_enabled(adapter))
2263 synchronize_irq(be_msix_vec_get(adapter, eqo));
2265 synchronize_irq(netdev->irq);
2269 be_irq_unregister(adapter);
2271 /* Wait for all pending tx completions to arrive so that
2272 * all tx skbs are freed.
2274 be_tx_compl_clean(adapter);
2276 be_rx_qs_destroy(adapter);
2280 static int be_rx_qs_create(struct be_adapter *adapter)
2282 struct be_rx_obj *rxo;
2286 for_all_rx_queues(adapter, rxo, i) {
2287 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2288 sizeof(struct be_eth_rx_d));
2293 /* The FW would like the default RXQ to be created first */
2294 rxo = default_rxo(adapter);
2295 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2296 adapter->if_handle, false, &rxo->rss_id);
2300 for_all_rss_queues(adapter, rxo, i) {
2301 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2302 rx_frag_size, adapter->if_handle,
2303 true, &rxo->rss_id);
2308 if (be_multi_rxq(adapter)) {
2309 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2310 for_all_rss_queues(adapter, rxo, i) {
2313 rsstable[j + i] = rxo->rss_id;
2316 rc = be_cmd_rss_config(adapter, rsstable, 128);
2321 /* First time posting */
2322 for_all_rx_queues(adapter, rxo, i)
2323 be_post_rx_frags(rxo, GFP_KERNEL);
2327 static int be_open(struct net_device *netdev)
2329 struct be_adapter *adapter = netdev_priv(netdev);
2330 struct be_eq_obj *eqo;
2331 struct be_rx_obj *rxo;
2332 struct be_tx_obj *txo;
2336 status = be_rx_qs_create(adapter);
2340 be_irq_register(adapter);
2342 if (!lancer_chip(adapter))
2343 be_intr_set(adapter, true);
2345 for_all_rx_queues(adapter, rxo, i)
2346 be_cq_notify(adapter, rxo->cq.id, true, 0);
2348 for_all_tx_queues(adapter, txo, i)
2349 be_cq_notify(adapter, txo->cq.id, true, 0);
2351 be_async_mcc_enable(adapter);
2353 for_all_evt_queues(adapter, eqo, i) {
2354 napi_enable(&eqo->napi);
2355 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2358 status = be_cmd_link_status_query(adapter, NULL, NULL,
2361 be_link_status_update(adapter, link_status);
2365 be_close(adapter->netdev);
2369 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2371 struct be_dma_mem cmd;
2375 memset(mac, 0, ETH_ALEN);
2377 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2378 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2382 memset(cmd.va, 0, cmd.size);
2385 status = pci_write_config_dword(adapter->pdev,
2386 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2388 dev_err(&adapter->pdev->dev,
2389 "Could not enable Wake-on-lan\n");
2390 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2394 status = be_cmd_enable_magic_wol(adapter,
2395 adapter->netdev->dev_addr, &cmd);
2396 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2397 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2399 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2400 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2401 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2404 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2409 * Generate a seed MAC address from the PF MAC Address using jhash.
2410 * MAC Address for VFs are assigned incrementally starting from the seed.
2411 * These addresses are programmed in the ASIC by the PF and the VF driver
2412 * queries for the MAC address during its probe.
2414 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2419 struct be_vf_cfg *vf_cfg;
2421 be_vf_eth_addr_generate(adapter, mac);
2423 for_all_vfs(adapter, vf_cfg, vf) {
2424 if (lancer_chip(adapter)) {
2425 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2427 status = be_cmd_pmac_add(adapter, mac,
2429 &vf_cfg->pmac_id, vf + 1);
2433 dev_err(&adapter->pdev->dev,
2434 "Mac address assignment failed for VF %d\n", vf);
2436 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2443 static void be_vf_clear(struct be_adapter *adapter)
2445 struct be_vf_cfg *vf_cfg;
2448 for_all_vfs(adapter, vf_cfg, vf) {
2449 if (lancer_chip(adapter))
2450 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2452 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2453 vf_cfg->pmac_id, vf + 1);
2455 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2459 static int be_clear(struct be_adapter *adapter)
2461 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2462 cancel_delayed_work_sync(&adapter->work);
2463 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2466 if (sriov_enabled(adapter))
2467 be_vf_clear(adapter);
2469 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2471 be_mcc_queues_destroy(adapter);
2472 be_rx_cqs_destroy(adapter);
2473 be_tx_queues_destroy(adapter);
2474 be_evt_queues_destroy(adapter);
2476 /* tell fw we're done with firing cmds */
2477 be_cmd_fw_clean(adapter);
2479 be_msix_disable(adapter);
2483 static void be_vf_setup_init(struct be_adapter *adapter)
2485 struct be_vf_cfg *vf_cfg;
2488 for_all_vfs(adapter, vf_cfg, vf) {
2489 vf_cfg->if_handle = -1;
2490 vf_cfg->pmac_id = -1;
2494 static int be_vf_setup(struct be_adapter *adapter)
2496 struct be_vf_cfg *vf_cfg;
2497 u32 cap_flags, en_flags, vf;
2501 be_vf_setup_init(adapter);
2503 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2504 BE_IF_FLAGS_MULTICAST;
2505 for_all_vfs(adapter, vf_cfg, vf) {
2506 status = be_cmd_if_create(adapter, cap_flags, en_flags, NULL,
2507 &vf_cfg->if_handle, NULL, vf + 1);
2512 status = be_vf_eth_addr_config(adapter);
2516 for_all_vfs(adapter, vf_cfg, vf) {
2517 status = be_cmd_link_status_query(adapter, NULL, &lnk_speed,
2521 vf_cfg->tx_rate = lnk_speed * 10;
2528 static void be_setup_init(struct be_adapter *adapter)
2530 adapter->vlan_prio_bmap = 0xff;
2531 adapter->link_speed = -1;
2532 adapter->if_handle = -1;
2533 adapter->be3_native = false;
2534 adapter->promiscuous = false;
2535 adapter->eq_next_idx = 0;
2538 static int be_add_mac_from_list(struct be_adapter *adapter, u8 *mac)
2542 bool pmac_id_active;
2544 status = be_cmd_get_mac_from_list(adapter, 0, &pmac_id_active,
2549 if (pmac_id_active) {
2550 status = be_cmd_mac_addr_query(adapter, mac,
2551 MAC_ADDRESS_TYPE_NETWORK,
2552 false, adapter->if_handle, pmac_id);
2555 adapter->pmac_id = pmac_id;
2557 status = be_cmd_pmac_add(adapter, mac,
2558 adapter->if_handle, &adapter->pmac_id, 0);
2564 static int be_setup(struct be_adapter *adapter)
2566 struct net_device *netdev = adapter->netdev;
2567 u32 cap_flags, en_flags;
2572 be_setup_init(adapter);
2574 be_cmd_req_native_mode(adapter);
2576 be_msix_enable(adapter);
2578 status = be_evt_queues_create(adapter);
2582 status = be_tx_cqs_create(adapter);
2586 status = be_rx_cqs_create(adapter);
2590 status = be_mcc_queues_create(adapter);
2594 memset(mac, 0, ETH_ALEN);
2595 status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK,
2596 true /*permanent */, 0, 0);
2599 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2600 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2602 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2603 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
2604 cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
2605 BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
2607 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2608 cap_flags |= BE_IF_FLAGS_RSS;
2609 en_flags |= BE_IF_FLAGS_RSS;
2611 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2612 netdev->dev_addr, &adapter->if_handle,
2613 &adapter->pmac_id, 0);
2617 /* The VF's permanent mac queried from card is incorrect.
2618 * For BEx: Query the mac configued by the PF using if_handle
2619 * For Lancer: Get and use mac_list to obtain mac address.
2621 if (!be_physfn(adapter)) {
2622 if (lancer_chip(adapter))
2623 status = be_add_mac_from_list(adapter, mac);
2625 status = be_cmd_mac_addr_query(adapter, mac,
2626 MAC_ADDRESS_TYPE_NETWORK, false,
2627 adapter->if_handle, 0);
2629 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2630 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2634 status = be_tx_qs_create(adapter);
2638 be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
2640 status = be_vid_config(adapter, false, 0);
2644 be_set_rx_mode(adapter->netdev);
2646 status = be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
2647 /* For Lancer: It is legal for this cmd to fail on VF */
2648 if (status && (be_physfn(adapter) || !lancer_chip(adapter)))
2651 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc) {
2652 status = be_cmd_set_flow_control(adapter, adapter->tx_fc,
2654 /* For Lancer: It is legal for this cmd to fail on VF */
2655 if (status && (be_physfn(adapter) || !lancer_chip(adapter)))
2659 pcie_set_readrq(adapter->pdev, 4096);
2661 if (sriov_enabled(adapter)) {
2662 status = be_vf_setup(adapter);
2667 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2668 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
2676 #ifdef CONFIG_NET_POLL_CONTROLLER
2677 static void be_netpoll(struct net_device *netdev)
2679 struct be_adapter *adapter = netdev_priv(netdev);
2680 struct be_eq_obj *eqo;
2683 for_all_evt_queues(adapter, eqo, i)
2690 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
2691 static bool be_flash_redboot(struct be_adapter *adapter,
2692 const u8 *p, u32 img_start, int image_size,
2699 crc_offset = hdr_size + img_start + image_size - 4;
2703 status = be_cmd_get_flash_crc(adapter, flashed_crc,
2706 dev_err(&adapter->pdev->dev,
2707 "could not get crc from flash, not flashing redboot\n");
2711 /*update redboot only if crc does not match*/
2712 if (!memcmp(flashed_crc, p, 4))
2718 static bool phy_flashing_required(struct be_adapter *adapter)
2721 struct be_phy_info phy_info;
2723 status = be_cmd_get_phy_info(adapter, &phy_info);
2726 if ((phy_info.phy_type == TN_8022) &&
2727 (phy_info.interface_type == PHY_TYPE_BASET_10GB)) {
2733 static int be_flash_data(struct be_adapter *adapter,
2734 const struct firmware *fw,
2735 struct be_dma_mem *flash_cmd, int num_of_images)
2738 int status = 0, i, filehdr_size = 0;
2739 u32 total_bytes = 0, flash_op;
2741 const u8 *p = fw->data;
2742 struct be_cmd_write_flashrom *req = flash_cmd->va;
2743 const struct flash_comp *pflashcomp;
2746 static const struct flash_comp gen3_flash_types[10] = {
2747 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
2748 FLASH_IMAGE_MAX_SIZE_g3},
2749 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
2750 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
2751 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
2752 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2753 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
2754 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2755 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
2756 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2757 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
2758 FLASH_IMAGE_MAX_SIZE_g3},
2759 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
2760 FLASH_IMAGE_MAX_SIZE_g3},
2761 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
2762 FLASH_IMAGE_MAX_SIZE_g3},
2763 { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW,
2764 FLASH_NCSI_IMAGE_MAX_SIZE_g3},
2765 { FLASH_PHY_FW_START_g3, IMG_TYPE_PHY_FW,
2766 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3}
2768 static const struct flash_comp gen2_flash_types[8] = {
2769 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
2770 FLASH_IMAGE_MAX_SIZE_g2},
2771 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
2772 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
2773 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
2774 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2775 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
2776 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2777 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
2778 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2779 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
2780 FLASH_IMAGE_MAX_SIZE_g2},
2781 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
2782 FLASH_IMAGE_MAX_SIZE_g2},
2783 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
2784 FLASH_IMAGE_MAX_SIZE_g2}
2787 if (adapter->generation == BE_GEN3) {
2788 pflashcomp = gen3_flash_types;
2789 filehdr_size = sizeof(struct flash_file_hdr_g3);
2790 num_comp = ARRAY_SIZE(gen3_flash_types);
2792 pflashcomp = gen2_flash_types;
2793 filehdr_size = sizeof(struct flash_file_hdr_g2);
2794 num_comp = ARRAY_SIZE(gen2_flash_types);
2796 for (i = 0; i < num_comp; i++) {
2797 if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) &&
2798 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
2800 if (pflashcomp[i].optype == IMG_TYPE_PHY_FW) {
2801 if (!phy_flashing_required(adapter))
2804 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
2805 (!be_flash_redboot(adapter, fw->data,
2806 pflashcomp[i].offset, pflashcomp[i].size, filehdr_size +
2807 (num_of_images * sizeof(struct image_hdr)))))
2810 p += filehdr_size + pflashcomp[i].offset
2811 + (num_of_images * sizeof(struct image_hdr));
2812 if (p + pflashcomp[i].size > fw->data + fw->size)
2814 total_bytes = pflashcomp[i].size;
2815 while (total_bytes) {
2816 if (total_bytes > 32*1024)
2817 num_bytes = 32*1024;
2819 num_bytes = total_bytes;
2820 total_bytes -= num_bytes;
2822 if (pflashcomp[i].optype == IMG_TYPE_PHY_FW)
2823 flash_op = FLASHROM_OPER_PHY_FLASH;
2825 flash_op = FLASHROM_OPER_FLASH;
2827 if (pflashcomp[i].optype == IMG_TYPE_PHY_FW)
2828 flash_op = FLASHROM_OPER_PHY_SAVE;
2830 flash_op = FLASHROM_OPER_SAVE;
2832 memcpy(req->params.data_buf, p, num_bytes);
2834 status = be_cmd_write_flashrom(adapter, flash_cmd,
2835 pflashcomp[i].optype, flash_op, num_bytes);
2837 if ((status == ILLEGAL_IOCTL_REQ) &&
2838 (pflashcomp[i].optype ==
2841 dev_err(&adapter->pdev->dev,
2842 "cmd to write to flash rom failed.\n");
2850 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
2854 if (fhdr->build[0] == '3')
2856 else if (fhdr->build[0] == '2')
2862 static int lancer_fw_download(struct be_adapter *adapter,
2863 const struct firmware *fw)
2865 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
2866 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
2867 struct be_dma_mem flash_cmd;
2868 const u8 *data_ptr = NULL;
2869 u8 *dest_image_ptr = NULL;
2870 size_t image_size = 0;
2872 u32 data_written = 0;
2877 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
2878 dev_err(&adapter->pdev->dev,
2879 "FW Image not properly aligned. "
2880 "Length must be 4 byte aligned.\n");
2882 goto lancer_fw_exit;
2885 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
2886 + LANCER_FW_DOWNLOAD_CHUNK;
2887 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2888 &flash_cmd.dma, GFP_KERNEL);
2889 if (!flash_cmd.va) {
2891 dev_err(&adapter->pdev->dev,
2892 "Memory allocation failure while flashing\n");
2893 goto lancer_fw_exit;
2896 dest_image_ptr = flash_cmd.va +
2897 sizeof(struct lancer_cmd_req_write_object);
2898 image_size = fw->size;
2899 data_ptr = fw->data;
2901 while (image_size) {
2902 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
2904 /* Copy the image chunk content. */
2905 memcpy(dest_image_ptr, data_ptr, chunk_size);
2907 status = lancer_cmd_write_object(adapter, &flash_cmd,
2908 chunk_size, offset, LANCER_FW_DOWNLOAD_LOCATION,
2909 &data_written, &add_status);
2914 offset += data_written;
2915 data_ptr += data_written;
2916 image_size -= data_written;
2920 /* Commit the FW written */
2921 status = lancer_cmd_write_object(adapter, &flash_cmd,
2922 0, offset, LANCER_FW_DOWNLOAD_LOCATION,
2923 &data_written, &add_status);
2926 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
2929 dev_err(&adapter->pdev->dev,
2930 "Firmware load error. "
2931 "Status code: 0x%x Additional Status: 0x%x\n",
2932 status, add_status);
2933 goto lancer_fw_exit;
2936 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2941 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
2943 struct flash_file_hdr_g2 *fhdr;
2944 struct flash_file_hdr_g3 *fhdr3;
2945 struct image_hdr *img_hdr_ptr = NULL;
2946 struct be_dma_mem flash_cmd;
2948 int status = 0, i = 0, num_imgs = 0;
2951 fhdr = (struct flash_file_hdr_g2 *) p;
2953 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
2954 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
2955 &flash_cmd.dma, GFP_KERNEL);
2956 if (!flash_cmd.va) {
2958 dev_err(&adapter->pdev->dev,
2959 "Memory allocation failure while flashing\n");
2963 if ((adapter->generation == BE_GEN3) &&
2964 (get_ufigen_type(fhdr) == BE_GEN3)) {
2965 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
2966 num_imgs = le32_to_cpu(fhdr3->num_imgs);
2967 for (i = 0; i < num_imgs; i++) {
2968 img_hdr_ptr = (struct image_hdr *) (fw->data +
2969 (sizeof(struct flash_file_hdr_g3) +
2970 i * sizeof(struct image_hdr)));
2971 if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
2972 status = be_flash_data(adapter, fw, &flash_cmd,
2975 } else if ((adapter->generation == BE_GEN2) &&
2976 (get_ufigen_type(fhdr) == BE_GEN2)) {
2977 status = be_flash_data(adapter, fw, &flash_cmd, 0);
2979 dev_err(&adapter->pdev->dev,
2980 "UFI and Interface are not compatible for flashing\n");
2984 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
2987 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2991 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2997 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
2999 const struct firmware *fw;
3002 if (!netif_running(adapter->netdev)) {
3003 dev_err(&adapter->pdev->dev,
3004 "Firmware load not allowed (interface is down)\n");
3008 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3012 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3014 if (lancer_chip(adapter))
3015 status = lancer_fw_download(adapter, fw);
3017 status = be_fw_download(adapter, fw);
3020 release_firmware(fw);
3024 static const struct net_device_ops be_netdev_ops = {
3025 .ndo_open = be_open,
3026 .ndo_stop = be_close,
3027 .ndo_start_xmit = be_xmit,
3028 .ndo_set_rx_mode = be_set_rx_mode,
3029 .ndo_set_mac_address = be_mac_addr_set,
3030 .ndo_change_mtu = be_change_mtu,
3031 .ndo_get_stats64 = be_get_stats64,
3032 .ndo_validate_addr = eth_validate_addr,
3033 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3034 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3035 .ndo_set_vf_mac = be_set_vf_mac,
3036 .ndo_set_vf_vlan = be_set_vf_vlan,
3037 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3038 .ndo_get_vf_config = be_get_vf_config,
3039 #ifdef CONFIG_NET_POLL_CONTROLLER
3040 .ndo_poll_controller = be_netpoll,
3044 static void be_netdev_init(struct net_device *netdev)
3046 struct be_adapter *adapter = netdev_priv(netdev);
3047 struct be_eq_obj *eqo;
3050 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3051 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3053 if (be_multi_rxq(adapter))
3054 netdev->hw_features |= NETIF_F_RXHASH;
3056 netdev->features |= netdev->hw_features |
3057 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3059 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3060 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3062 netdev->flags |= IFF_MULTICAST;
3064 netif_set_gso_max_size(netdev, 65535);
3066 netdev->netdev_ops = &be_netdev_ops;
3068 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3070 for_all_evt_queues(adapter, eqo, i)
3071 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3074 static void be_unmap_pci_bars(struct be_adapter *adapter)
3077 iounmap(adapter->csr);
3079 iounmap(adapter->db);
3082 static int be_map_pci_bars(struct be_adapter *adapter)
3087 if (lancer_chip(adapter)) {
3088 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 0),
3089 pci_resource_len(adapter->pdev, 0));
3096 if (be_physfn(adapter)) {
3097 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3098 pci_resource_len(adapter->pdev, 2));
3101 adapter->csr = addr;
3104 if (adapter->generation == BE_GEN2) {
3107 if (be_physfn(adapter))
3112 addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3113 pci_resource_len(adapter->pdev, db_reg));
3120 be_unmap_pci_bars(adapter);
3125 static void be_ctrl_cleanup(struct be_adapter *adapter)
3127 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3129 be_unmap_pci_bars(adapter);
3132 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3135 mem = &adapter->rx_filter;
3137 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3141 static int be_ctrl_init(struct be_adapter *adapter)
3143 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3144 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3145 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3148 status = be_map_pci_bars(adapter);
3152 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3153 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3154 mbox_mem_alloc->size,
3155 &mbox_mem_alloc->dma,
3157 if (!mbox_mem_alloc->va) {
3159 goto unmap_pci_bars;
3161 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3162 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3163 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3164 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3166 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3167 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3168 &rx_filter->dma, GFP_KERNEL);
3169 if (rx_filter->va == NULL) {
3173 memset(rx_filter->va, 0, rx_filter->size);
3175 mutex_init(&adapter->mbox_lock);
3176 spin_lock_init(&adapter->mcc_lock);
3177 spin_lock_init(&adapter->mcc_cq_lock);
3179 init_completion(&adapter->flash_compl);
3180 pci_save_state(adapter->pdev);
3184 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3185 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3188 be_unmap_pci_bars(adapter);
3194 static void be_stats_cleanup(struct be_adapter *adapter)
3196 struct be_dma_mem *cmd = &adapter->stats_cmd;
3199 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3203 static int be_stats_init(struct be_adapter *adapter)
3205 struct be_dma_mem *cmd = &adapter->stats_cmd;
3207 if (adapter->generation == BE_GEN2) {
3208 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3210 if (lancer_chip(adapter))
3211 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3213 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3215 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3217 if (cmd->va == NULL)
3219 memset(cmd->va, 0, cmd->size);
3223 static void __devexit be_remove(struct pci_dev *pdev)
3225 struct be_adapter *adapter = pci_get_drvdata(pdev);
3230 unregister_netdev(adapter->netdev);
3234 be_stats_cleanup(adapter);
3236 be_ctrl_cleanup(adapter);
3238 be_sriov_disable(adapter);
3240 pci_set_drvdata(pdev, NULL);
3241 pci_release_regions(pdev);
3242 pci_disable_device(pdev);
3244 free_netdev(adapter->netdev);
3247 static int be_get_config(struct be_adapter *adapter)
3251 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3252 &adapter->function_mode, &adapter->function_caps);
3256 if (adapter->function_mode & FLEX10_MODE)
3257 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
3259 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3261 status = be_cmd_get_cntl_attributes(adapter);
3268 static int be_dev_family_check(struct be_adapter *adapter)
3270 struct pci_dev *pdev = adapter->pdev;
3271 u32 sli_intf = 0, if_type;
3273 switch (pdev->device) {
3276 adapter->generation = BE_GEN2;
3281 adapter->generation = BE_GEN3;
3285 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3286 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3287 SLI_INTF_IF_TYPE_SHIFT;
3289 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3291 dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3294 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3295 SLI_INTF_FAMILY_SHIFT);
3296 adapter->generation = BE_GEN3;
3299 adapter->generation = 0;
3304 static int lancer_wait_ready(struct be_adapter *adapter)
3306 #define SLIPORT_READY_TIMEOUT 30
3310 for (i = 0; i < SLIPORT_READY_TIMEOUT; i++) {
3311 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3312 if (sliport_status & SLIPORT_STATUS_RDY_MASK)
3318 if (i == SLIPORT_READY_TIMEOUT)
3324 static int lancer_test_and_set_rdy_state(struct be_adapter *adapter)
3327 u32 sliport_status, err, reset_needed;
3328 status = lancer_wait_ready(adapter);
3330 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3331 err = sliport_status & SLIPORT_STATUS_ERR_MASK;
3332 reset_needed = sliport_status & SLIPORT_STATUS_RN_MASK;
3333 if (err && reset_needed) {
3334 iowrite32(SLI_PORT_CONTROL_IP_MASK,
3335 adapter->db + SLIPORT_CONTROL_OFFSET);
3337 /* check adapter has corrected the error */
3338 status = lancer_wait_ready(adapter);
3339 sliport_status = ioread32(adapter->db +
3340 SLIPORT_STATUS_OFFSET);
3341 sliport_status &= (SLIPORT_STATUS_ERR_MASK |
3342 SLIPORT_STATUS_RN_MASK);
3343 if (status || sliport_status)
3345 } else if (err || reset_needed) {
3352 static void lancer_test_and_recover_fn_err(struct be_adapter *adapter)
3357 if (adapter->eeh_err || adapter->ue_detected)
3360 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
3362 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
3363 dev_err(&adapter->pdev->dev,
3364 "Adapter in error state."
3365 "Trying to recover.\n");
3367 status = lancer_test_and_set_rdy_state(adapter);
3371 netif_device_detach(adapter->netdev);
3373 if (netif_running(adapter->netdev))
3374 be_close(adapter->netdev);
3378 adapter->fw_timeout = false;
3380 status = be_setup(adapter);
3384 if (netif_running(adapter->netdev)) {
3385 status = be_open(adapter->netdev);
3390 netif_device_attach(adapter->netdev);
3392 dev_err(&adapter->pdev->dev,
3393 "Adapter error recovery succeeded\n");
3397 dev_err(&adapter->pdev->dev,
3398 "Adapter error recovery failed\n");
3401 static void be_worker(struct work_struct *work)
3403 struct be_adapter *adapter =
3404 container_of(work, struct be_adapter, work.work);
3405 struct be_rx_obj *rxo;
3406 struct be_eq_obj *eqo;
3409 if (lancer_chip(adapter))
3410 lancer_test_and_recover_fn_err(adapter);
3412 be_detect_dump_ue(adapter);
3414 /* when interrupts are not yet enabled, just reap any pending
3415 * mcc completions */
3416 if (!netif_running(adapter->netdev)) {
3417 be_process_mcc(adapter);
3421 if (!adapter->stats_cmd_sent) {
3422 if (lancer_chip(adapter))
3423 lancer_cmd_get_pport_stats(adapter,
3424 &adapter->stats_cmd);
3426 be_cmd_get_stats(adapter, &adapter->stats_cmd);
3429 for_all_rx_queues(adapter, rxo, i) {
3430 if (rxo->rx_post_starved) {
3431 rxo->rx_post_starved = false;
3432 be_post_rx_frags(rxo, GFP_KERNEL);
3436 for_all_evt_queues(adapter, eqo, i)
3437 be_eqd_update(adapter, eqo);
3440 adapter->work_counter++;
3441 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3444 static int __devinit be_probe(struct pci_dev *pdev,
3445 const struct pci_device_id *pdev_id)
3448 struct be_adapter *adapter;
3449 struct net_device *netdev;
3451 status = pci_enable_device(pdev);
3455 status = pci_request_regions(pdev, DRV_NAME);
3458 pci_set_master(pdev);
3460 netdev = alloc_etherdev_mq(sizeof(struct be_adapter), MAX_TX_QS);
3461 if (netdev == NULL) {
3465 adapter = netdev_priv(netdev);
3466 adapter->pdev = pdev;
3467 pci_set_drvdata(pdev, adapter);
3469 status = be_dev_family_check(adapter);
3473 adapter->netdev = netdev;
3474 SET_NETDEV_DEV(netdev, &pdev->dev);
3476 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3478 netdev->features |= NETIF_F_HIGHDMA;
3480 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3482 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3487 status = be_sriov_enable(adapter);
3491 status = be_ctrl_init(adapter);
3495 if (lancer_chip(adapter)) {
3496 status = lancer_wait_ready(adapter);
3498 iowrite32(SLI_PORT_CONTROL_IP_MASK,
3499 adapter->db + SLIPORT_CONTROL_OFFSET);
3500 status = lancer_test_and_set_rdy_state(adapter);
3503 dev_err(&pdev->dev, "Adapter in non recoverable error\n");
3508 /* sync up with fw's ready state */
3509 if (be_physfn(adapter)) {
3510 status = be_cmd_POST(adapter);
3515 /* tell fw we're ready to fire cmds */
3516 status = be_cmd_fw_init(adapter);
3520 status = be_cmd_reset_function(adapter);
3524 /* The INTR bit may be set in the card when probed by a kdump kernel
3527 if (!lancer_chip(adapter))
3528 be_intr_set(adapter, false);
3530 status = be_stats_init(adapter);
3534 status = be_get_config(adapter);
3538 INIT_DELAYED_WORK(&adapter->work, be_worker);
3539 adapter->rx_fc = adapter->tx_fc = true;
3541 status = be_setup(adapter);
3545 be_netdev_init(netdev);
3546 status = register_netdev(netdev);
3550 dev_info(&pdev->dev, "%s: %s port %d\n", netdev->name, nic_name(pdev),
3558 be_msix_disable(adapter);
3560 be_stats_cleanup(adapter);
3562 be_ctrl_cleanup(adapter);
3564 be_sriov_disable(adapter);
3566 free_netdev(netdev);
3567 pci_set_drvdata(pdev, NULL);
3569 pci_release_regions(pdev);
3571 pci_disable_device(pdev);
3573 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3577 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3579 struct be_adapter *adapter = pci_get_drvdata(pdev);
3580 struct net_device *netdev = adapter->netdev;
3583 be_setup_wol(adapter, true);
3585 netif_device_detach(netdev);
3586 if (netif_running(netdev)) {
3593 pci_save_state(pdev);
3594 pci_disable_device(pdev);
3595 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3599 static int be_resume(struct pci_dev *pdev)
3602 struct be_adapter *adapter = pci_get_drvdata(pdev);
3603 struct net_device *netdev = adapter->netdev;
3605 netif_device_detach(netdev);
3607 status = pci_enable_device(pdev);
3611 pci_set_power_state(pdev, 0);
3612 pci_restore_state(pdev);
3614 /* tell fw we're ready to fire cmds */
3615 status = be_cmd_fw_init(adapter);
3620 if (netif_running(netdev)) {
3625 netif_device_attach(netdev);
3628 be_setup_wol(adapter, false);
3634 * An FLR will stop BE from DMAing any data.
3636 static void be_shutdown(struct pci_dev *pdev)
3638 struct be_adapter *adapter = pci_get_drvdata(pdev);
3643 cancel_delayed_work_sync(&adapter->work);
3645 netif_device_detach(adapter->netdev);
3648 be_setup_wol(adapter, true);
3650 be_cmd_reset_function(adapter);
3652 pci_disable_device(pdev);
3655 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
3656 pci_channel_state_t state)
3658 struct be_adapter *adapter = pci_get_drvdata(pdev);
3659 struct net_device *netdev = adapter->netdev;
3661 dev_err(&adapter->pdev->dev, "EEH error detected\n");
3663 adapter->eeh_err = true;
3665 netif_device_detach(netdev);
3667 if (netif_running(netdev)) {
3674 if (state == pci_channel_io_perm_failure)
3675 return PCI_ERS_RESULT_DISCONNECT;
3677 pci_disable_device(pdev);
3679 return PCI_ERS_RESULT_NEED_RESET;
3682 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
3684 struct be_adapter *adapter = pci_get_drvdata(pdev);
3687 dev_info(&adapter->pdev->dev, "EEH reset\n");
3688 adapter->eeh_err = false;
3689 adapter->ue_detected = false;
3690 adapter->fw_timeout = false;
3692 status = pci_enable_device(pdev);
3694 return PCI_ERS_RESULT_DISCONNECT;
3696 pci_set_master(pdev);
3697 pci_set_power_state(pdev, 0);
3698 pci_restore_state(pdev);
3700 /* Check if card is ok and fw is ready */
3701 status = be_cmd_POST(adapter);
3703 return PCI_ERS_RESULT_DISCONNECT;
3705 return PCI_ERS_RESULT_RECOVERED;
3708 static void be_eeh_resume(struct pci_dev *pdev)
3711 struct be_adapter *adapter = pci_get_drvdata(pdev);
3712 struct net_device *netdev = adapter->netdev;
3714 dev_info(&adapter->pdev->dev, "EEH resume\n");
3716 pci_save_state(pdev);
3718 /* tell fw we're ready to fire cmds */
3719 status = be_cmd_fw_init(adapter);
3723 status = be_setup(adapter);
3727 if (netif_running(netdev)) {
3728 status = be_open(netdev);
3732 netif_device_attach(netdev);
3735 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
3738 static struct pci_error_handlers be_eeh_handlers = {
3739 .error_detected = be_eeh_err_detected,
3740 .slot_reset = be_eeh_reset,
3741 .resume = be_eeh_resume,
3744 static struct pci_driver be_driver = {
3746 .id_table = be_dev_ids,
3748 .remove = be_remove,
3749 .suspend = be_suspend,
3750 .resume = be_resume,
3751 .shutdown = be_shutdown,
3752 .err_handler = &be_eeh_handlers
3755 static int __init be_init_module(void)
3757 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
3758 rx_frag_size != 2048) {
3759 printk(KERN_WARNING DRV_NAME
3760 " : Module param rx_frag_size must be 2048/4096/8192."
3762 rx_frag_size = 2048;
3765 return pci_register_driver(&be_driver);
3767 module_init(be_init_module);
3769 static void __exit be_exit_module(void)
3771 pci_unregister_driver(&be_driver);
3773 module_exit(be_exit_module);