2 * Copyright (C) 2005 - 2010 ServerEngines
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@serverengines.com
14 * 209 N. Fair Oaks Ave
20 #include <asm/div64.h>
22 MODULE_VERSION(DRV_VER);
23 MODULE_DEVICE_TABLE(pci, be_dev_ids);
24 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
25 MODULE_AUTHOR("ServerEngines Corporation");
26 MODULE_LICENSE("GPL");
28 static unsigned int rx_frag_size = 2048;
29 static unsigned int num_vfs;
30 module_param(rx_frag_size, uint, S_IRUGO);
31 module_param(num_vfs, uint, S_IRUGO);
32 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
33 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
35 static bool multi_rxq = true;
36 module_param(multi_rxq, bool, S_IRUGO | S_IWUSR);
37 MODULE_PARM_DESC(multi_rxq, "Multi Rx Queue support. Enabled by default");
39 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
40 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
41 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
42 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
43 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
46 MODULE_DEVICE_TABLE(pci, be_dev_ids);
47 /* UE Status Low CSR */
48 static char *ue_status_low_desc[] = {
82 /* UE Status High CSR */
83 static char *ue_status_hi_desc[] = {
118 static inline bool be_multi_rxq(struct be_adapter *adapter)
120 return (adapter->num_rx_qs > 1);
123 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
125 struct be_dma_mem *mem = &q->dma_mem;
127 pci_free_consistent(adapter->pdev, mem->size,
131 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
132 u16 len, u16 entry_size)
134 struct be_dma_mem *mem = &q->dma_mem;
136 memset(q, 0, sizeof(*q));
138 q->entry_size = entry_size;
139 mem->size = len * entry_size;
140 mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
143 memset(mem->va, 0, mem->size);
147 static void be_intr_set(struct be_adapter *adapter, bool enable)
149 u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
150 u32 reg = ioread32(addr);
151 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
153 if (adapter->eeh_err)
156 if (!enabled && enable)
157 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
158 else if (enabled && !enable)
159 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
163 iowrite32(reg, addr);
166 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
169 val |= qid & DB_RQ_RING_ID_MASK;
170 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
173 iowrite32(val, adapter->db + DB_RQ_OFFSET);
176 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
179 val |= qid & DB_TXULP_RING_ID_MASK;
180 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
183 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
186 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
187 bool arm, bool clear_int, u16 num_popped)
190 val |= qid & DB_EQ_RING_ID_MASK;
192 if (adapter->eeh_err)
196 val |= 1 << DB_EQ_REARM_SHIFT;
198 val |= 1 << DB_EQ_CLR_SHIFT;
199 val |= 1 << DB_EQ_EVNT_SHIFT;
200 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
201 iowrite32(val, adapter->db + DB_EQ_OFFSET);
204 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
207 val |= qid & DB_CQ_RING_ID_MASK;
209 if (adapter->eeh_err)
213 val |= 1 << DB_CQ_REARM_SHIFT;
214 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
215 iowrite32(val, adapter->db + DB_CQ_OFFSET);
218 static int be_mac_addr_set(struct net_device *netdev, void *p)
220 struct be_adapter *adapter = netdev_priv(netdev);
221 struct sockaddr *addr = p;
224 if (!is_valid_ether_addr(addr->sa_data))
225 return -EADDRNOTAVAIL;
227 /* MAC addr configuration will be done in hardware for VFs
228 * by their corresponding PFs. Just copy to netdev addr here
230 if (!be_physfn(adapter))
233 status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
237 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
238 adapter->if_handle, &adapter->pmac_id);
241 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
246 void netdev_stats_update(struct be_adapter *adapter)
248 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats_cmd.va);
249 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
250 struct be_port_rxf_stats *port_stats =
251 &rxf_stats->port[adapter->port_num];
252 struct net_device_stats *dev_stats = &adapter->netdev->stats;
253 struct be_erx_stats *erx_stats = &hw_stats->erx;
254 struct be_rx_obj *rxo;
257 memset(dev_stats, 0, sizeof(*dev_stats));
258 for_all_rx_queues(adapter, rxo, i) {
259 dev_stats->rx_packets += rx_stats(rxo)->rx_pkts;
260 dev_stats->rx_bytes += rx_stats(rxo)->rx_bytes;
261 dev_stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
262 /* no space in linux buffers: best possible approximation */
263 dev_stats->rx_dropped +=
264 erx_stats->rx_drops_no_fragments[rxo->q.id];
267 dev_stats->tx_packets = tx_stats(adapter)->be_tx_pkts;
268 dev_stats->tx_bytes = tx_stats(adapter)->be_tx_bytes;
270 /* bad pkts received */
271 dev_stats->rx_errors = port_stats->rx_crc_errors +
272 port_stats->rx_alignment_symbol_errors +
273 port_stats->rx_in_range_errors +
274 port_stats->rx_out_range_errors +
275 port_stats->rx_frame_too_long +
276 port_stats->rx_dropped_too_small +
277 port_stats->rx_dropped_too_short +
278 port_stats->rx_dropped_header_too_small +
279 port_stats->rx_dropped_tcp_length +
280 port_stats->rx_dropped_runt +
281 port_stats->rx_tcp_checksum_errs +
282 port_stats->rx_ip_checksum_errs +
283 port_stats->rx_udp_checksum_errs;
285 /* detailed rx errors */
286 dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
287 port_stats->rx_out_range_errors +
288 port_stats->rx_frame_too_long;
290 dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
292 /* frame alignment errors */
293 dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
295 /* receiver fifo overrun */
296 /* drops_no_pbuf is no per i/f, it's per BE card */
297 dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
298 port_stats->rx_input_fifo_overflow +
299 rxf_stats->rx_drops_no_pbuf;
302 void be_link_status_update(struct be_adapter *adapter, bool link_up)
304 struct net_device *netdev = adapter->netdev;
306 /* If link came up or went down */
307 if (adapter->link_up != link_up) {
308 adapter->link_speed = -1;
310 netif_start_queue(netdev);
311 netif_carrier_on(netdev);
312 printk(KERN_INFO "%s: Link up\n", netdev->name);
314 netif_stop_queue(netdev);
315 netif_carrier_off(netdev);
316 printk(KERN_INFO "%s: Link down\n", netdev->name);
318 adapter->link_up = link_up;
322 /* Update the EQ delay n BE based on the RX frags consumed / sec */
323 static void be_rx_eqd_update(struct be_adapter *adapter, struct be_rx_obj *rxo)
325 struct be_eq_obj *rx_eq = &rxo->rx_eq;
326 struct be_rx_stats *stats = &rxo->stats;
330 if (!rx_eq->enable_aic)
334 if (time_before(now, stats->rx_fps_jiffies)) {
335 stats->rx_fps_jiffies = now;
339 /* Update once a second */
340 if ((now - stats->rx_fps_jiffies) < HZ)
343 stats->rx_fps = (stats->rx_frags - stats->prev_rx_frags) /
344 ((now - stats->rx_fps_jiffies) / HZ);
346 stats->rx_fps_jiffies = now;
347 stats->prev_rx_frags = stats->rx_frags;
348 eqd = stats->rx_fps / 110000;
350 if (eqd > rx_eq->max_eqd)
351 eqd = rx_eq->max_eqd;
352 if (eqd < rx_eq->min_eqd)
353 eqd = rx_eq->min_eqd;
356 if (eqd != rx_eq->cur_eqd)
357 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
359 rx_eq->cur_eqd = eqd;
362 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
366 do_div(rate, ticks / HZ);
367 rate <<= 3; /* bytes/sec -> bits/sec */
368 do_div(rate, 1000000ul); /* MB/Sec */
373 static void be_tx_rate_update(struct be_adapter *adapter)
375 struct be_tx_stats *stats = tx_stats(adapter);
378 /* Wrapped around? */
379 if (time_before(now, stats->be_tx_jiffies)) {
380 stats->be_tx_jiffies = now;
384 /* Update tx rate once in two seconds */
385 if ((now - stats->be_tx_jiffies) > 2 * HZ) {
386 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
387 - stats->be_tx_bytes_prev,
388 now - stats->be_tx_jiffies);
389 stats->be_tx_jiffies = now;
390 stats->be_tx_bytes_prev = stats->be_tx_bytes;
394 static void be_tx_stats_update(struct be_adapter *adapter,
395 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
397 struct be_tx_stats *stats = tx_stats(adapter);
399 stats->be_tx_wrbs += wrb_cnt;
400 stats->be_tx_bytes += copied;
401 stats->be_tx_pkts += (gso_segs ? gso_segs : 1);
403 stats->be_tx_stops++;
406 /* Determine number of WRB entries needed to xmit data in an skb */
407 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
409 int cnt = (skb->len > skb->data_len);
411 cnt += skb_shinfo(skb)->nr_frags;
413 /* to account for hdr wrb */
416 /* add a dummy to make it an even num */
421 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
425 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
427 wrb->frag_pa_hi = upper_32_bits(addr);
428 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
429 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
432 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
433 struct sk_buff *skb, u32 wrb_cnt, u32 len)
438 memset(hdr, 0, sizeof(*hdr));
440 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
442 if (skb_is_gso(skb)) {
443 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
444 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
445 hdr, skb_shinfo(skb)->gso_size);
446 if (skb_is_gso_v6(skb))
447 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
448 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
450 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
451 else if (is_udp_pkt(skb))
452 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
455 if (adapter->vlan_grp && vlan_tx_tag_present(skb)) {
456 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
457 vlan_tag = vlan_tx_tag_get(skb);
458 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
459 /* If vlan priority provided by OS is NOT in available bmap */
460 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
461 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
462 adapter->recommended_prio;
463 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
466 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
467 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
468 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
469 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
472 static void unmap_tx_frag(struct pci_dev *pdev, struct be_eth_wrb *wrb,
477 be_dws_le_to_cpu(wrb, sizeof(*wrb));
479 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
482 pci_unmap_single(pdev, dma, wrb->frag_len,
485 pci_unmap_page(pdev, dma, wrb->frag_len,
490 static int make_tx_wrbs(struct be_adapter *adapter,
491 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
495 struct pci_dev *pdev = adapter->pdev;
496 struct sk_buff *first_skb = skb;
497 struct be_queue_info *txq = &adapter->tx_obj.q;
498 struct be_eth_wrb *wrb;
499 struct be_eth_hdr_wrb *hdr;
500 bool map_single = false;
503 hdr = queue_head_node(txq);
505 map_head = txq->head;
507 if (skb->len > skb->data_len) {
508 int len = skb_headlen(skb);
509 busaddr = pci_map_single(pdev, skb->data, len,
511 if (pci_dma_mapping_error(pdev, busaddr))
514 wrb = queue_head_node(txq);
515 wrb_fill(wrb, busaddr, len);
516 be_dws_cpu_to_le(wrb, sizeof(*wrb));
521 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
522 struct skb_frag_struct *frag =
523 &skb_shinfo(skb)->frags[i];
524 busaddr = pci_map_page(pdev, frag->page,
526 frag->size, PCI_DMA_TODEVICE);
527 if (pci_dma_mapping_error(pdev, busaddr))
529 wrb = queue_head_node(txq);
530 wrb_fill(wrb, busaddr, frag->size);
531 be_dws_cpu_to_le(wrb, sizeof(*wrb));
533 copied += frag->size;
537 wrb = queue_head_node(txq);
539 be_dws_cpu_to_le(wrb, sizeof(*wrb));
543 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
544 be_dws_cpu_to_le(hdr, sizeof(*hdr));
548 txq->head = map_head;
550 wrb = queue_head_node(txq);
551 unmap_tx_frag(pdev, wrb, map_single);
553 copied -= wrb->frag_len;
559 static netdev_tx_t be_xmit(struct sk_buff *skb,
560 struct net_device *netdev)
562 struct be_adapter *adapter = netdev_priv(netdev);
563 struct be_tx_obj *tx_obj = &adapter->tx_obj;
564 struct be_queue_info *txq = &tx_obj->q;
565 u32 wrb_cnt = 0, copied = 0;
566 u32 start = txq->head;
567 bool dummy_wrb, stopped = false;
569 wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
571 copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
573 /* record the sent skb in the sent_skb table */
574 BUG_ON(tx_obj->sent_skb_list[start]);
575 tx_obj->sent_skb_list[start] = skb;
577 /* Ensure txq has space for the next skb; Else stop the queue
578 * *BEFORE* ringing the tx doorbell, so that we serialze the
579 * tx compls of the current transmit which'll wake up the queue
581 atomic_add(wrb_cnt, &txq->used);
582 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
584 netif_stop_queue(netdev);
588 be_txq_notify(adapter, txq->id, wrb_cnt);
590 be_tx_stats_update(adapter, wrb_cnt, copied,
591 skb_shinfo(skb)->gso_segs, stopped);
594 dev_kfree_skb_any(skb);
599 static int be_change_mtu(struct net_device *netdev, int new_mtu)
601 struct be_adapter *adapter = netdev_priv(netdev);
602 if (new_mtu < BE_MIN_MTU ||
603 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
604 (ETH_HLEN + ETH_FCS_LEN))) {
605 dev_info(&adapter->pdev->dev,
606 "MTU must be between %d and %d bytes\n",
608 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
611 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
612 netdev->mtu, new_mtu);
613 netdev->mtu = new_mtu;
618 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
619 * If the user configures more, place BE in vlan promiscuous mode.
621 static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num)
623 u16 vtag[BE_NUM_VLANS_SUPPORTED];
629 if_handle = adapter->vf_cfg[vf_num].vf_if_handle;
630 vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag);
631 status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0);
634 if (adapter->vlans_added <= adapter->max_vlans) {
635 /* Construct VLAN Table to give to HW */
636 for (i = 0; i < VLAN_N_VID; i++) {
637 if (adapter->vlan_tag[i]) {
638 vtag[ntags] = cpu_to_le16(i);
642 status = be_cmd_vlan_config(adapter, adapter->if_handle,
645 status = be_cmd_vlan_config(adapter, adapter->if_handle,
652 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
654 struct be_adapter *adapter = netdev_priv(netdev);
656 adapter->vlan_grp = grp;
659 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
661 struct be_adapter *adapter = netdev_priv(netdev);
663 adapter->vlans_added++;
664 if (!be_physfn(adapter))
667 adapter->vlan_tag[vid] = 1;
668 if (adapter->vlans_added <= (adapter->max_vlans + 1))
669 be_vid_config(adapter, false, 0);
672 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
674 struct be_adapter *adapter = netdev_priv(netdev);
676 adapter->vlans_added--;
677 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
679 if (!be_physfn(adapter))
682 adapter->vlan_tag[vid] = 0;
683 if (adapter->vlans_added <= adapter->max_vlans)
684 be_vid_config(adapter, false, 0);
687 static void be_set_multicast_list(struct net_device *netdev)
689 struct be_adapter *adapter = netdev_priv(netdev);
691 if (netdev->flags & IFF_PROMISC) {
692 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
693 adapter->promiscuous = true;
697 /* BE was previously in promiscous mode; disable it */
698 if (adapter->promiscuous) {
699 adapter->promiscuous = false;
700 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
703 /* Enable multicast promisc if num configured exceeds what we support */
704 if (netdev->flags & IFF_ALLMULTI ||
705 netdev_mc_count(netdev) > BE_MAX_MC) {
706 be_cmd_multicast_set(adapter, adapter->if_handle, NULL,
707 &adapter->mc_cmd_mem);
711 be_cmd_multicast_set(adapter, adapter->if_handle, netdev,
712 &adapter->mc_cmd_mem);
717 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
719 struct be_adapter *adapter = netdev_priv(netdev);
722 if (!adapter->sriov_enabled)
725 if (!is_valid_ether_addr(mac) || (vf >= num_vfs))
728 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
729 status = be_cmd_pmac_del(adapter,
730 adapter->vf_cfg[vf].vf_if_handle,
731 adapter->vf_cfg[vf].vf_pmac_id);
733 status = be_cmd_pmac_add(adapter, mac,
734 adapter->vf_cfg[vf].vf_if_handle,
735 &adapter->vf_cfg[vf].vf_pmac_id);
738 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
741 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
746 static int be_get_vf_config(struct net_device *netdev, int vf,
747 struct ifla_vf_info *vi)
749 struct be_adapter *adapter = netdev_priv(netdev);
751 if (!adapter->sriov_enabled)
758 vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate;
759 vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag;
761 memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN);
766 static int be_set_vf_vlan(struct net_device *netdev,
767 int vf, u16 vlan, u8 qos)
769 struct be_adapter *adapter = netdev_priv(netdev);
772 if (!adapter->sriov_enabled)
775 if ((vf >= num_vfs) || (vlan > 4095))
779 adapter->vf_cfg[vf].vf_vlan_tag = vlan;
780 adapter->vlans_added++;
782 adapter->vf_cfg[vf].vf_vlan_tag = 0;
783 adapter->vlans_added--;
786 status = be_vid_config(adapter, true, vf);
789 dev_info(&adapter->pdev->dev,
790 "VLAN %d config on VF %d failed\n", vlan, vf);
794 static int be_set_vf_tx_rate(struct net_device *netdev,
797 struct be_adapter *adapter = netdev_priv(netdev);
800 if (!adapter->sriov_enabled)
803 if ((vf >= num_vfs) || (rate < 0))
809 adapter->vf_cfg[vf].vf_tx_rate = rate;
810 status = be_cmd_set_qos(adapter, rate / 10, vf);
813 dev_info(&adapter->pdev->dev,
814 "tx rate %d on VF %d failed\n", rate, vf);
818 static void be_rx_rate_update(struct be_rx_obj *rxo)
820 struct be_rx_stats *stats = &rxo->stats;
824 if (time_before(now, stats->rx_jiffies)) {
825 stats->rx_jiffies = now;
829 /* Update the rate once in two seconds */
830 if ((now - stats->rx_jiffies) < 2 * HZ)
833 stats->rx_rate = be_calc_rate(stats->rx_bytes - stats->rx_bytes_prev,
834 now - stats->rx_jiffies);
835 stats->rx_jiffies = now;
836 stats->rx_bytes_prev = stats->rx_bytes;
839 static void be_rx_stats_update(struct be_rx_obj *rxo,
840 u32 pktsize, u16 numfrags, u8 pkt_type)
842 struct be_rx_stats *stats = &rxo->stats;
845 stats->rx_frags += numfrags;
846 stats->rx_bytes += pktsize;
848 if (pkt_type == BE_MULTICAST_PACKET)
849 stats->rx_mcast_pkts++;
852 static inline bool csum_passed(struct be_eth_rx_compl *rxcp)
854 u8 l4_cksm, ipv6, ipcksm;
856 l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
857 ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
858 ipv6 = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
860 /* Ignore ipcksm for ipv6 pkts */
861 return l4_cksm && (ipcksm || ipv6);
864 static struct be_rx_page_info *
865 get_rx_page_info(struct be_adapter *adapter,
866 struct be_rx_obj *rxo,
869 struct be_rx_page_info *rx_page_info;
870 struct be_queue_info *rxq = &rxo->q;
872 rx_page_info = &rxo->page_info_tbl[frag_idx];
873 BUG_ON(!rx_page_info->page);
875 if (rx_page_info->last_page_user) {
876 pci_unmap_page(adapter->pdev, dma_unmap_addr(rx_page_info, bus),
877 adapter->big_page_size, PCI_DMA_FROMDEVICE);
878 rx_page_info->last_page_user = false;
881 atomic_dec(&rxq->used);
885 /* Throwaway the data in the Rx completion */
886 static void be_rx_compl_discard(struct be_adapter *adapter,
887 struct be_rx_obj *rxo,
888 struct be_eth_rx_compl *rxcp)
890 struct be_queue_info *rxq = &rxo->q;
891 struct be_rx_page_info *page_info;
892 u16 rxq_idx, i, num_rcvd;
894 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
895 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
897 for (i = 0; i < num_rcvd; i++) {
898 page_info = get_rx_page_info(adapter, rxo, rxq_idx);
899 put_page(page_info->page);
900 memset(page_info, 0, sizeof(*page_info));
901 index_inc(&rxq_idx, rxq->len);
906 * skb_fill_rx_data forms a complete skb for an ether frame
909 static void skb_fill_rx_data(struct be_adapter *adapter, struct be_rx_obj *rxo,
910 struct sk_buff *skb, struct be_eth_rx_compl *rxcp,
913 struct be_queue_info *rxq = &rxo->q;
914 struct be_rx_page_info *page_info;
916 u32 pktsize, hdr_len, curr_frag_len, size;
920 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
921 pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
922 pkt_type = AMAP_GET_BITS(struct amap_eth_rx_compl, cast_enc, rxcp);
924 page_info = get_rx_page_info(adapter, rxo, rxq_idx);
926 start = page_address(page_info->page) + page_info->page_offset;
929 /* Copy data in the first descriptor of this completion */
930 curr_frag_len = min(pktsize, rx_frag_size);
932 /* Copy the header portion into skb_data */
933 hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
934 memcpy(skb->data, start, hdr_len);
935 skb->len = curr_frag_len;
936 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
937 /* Complete packet has now been moved to data */
938 put_page(page_info->page);
940 skb->tail += curr_frag_len;
942 skb_shinfo(skb)->nr_frags = 1;
943 skb_shinfo(skb)->frags[0].page = page_info->page;
944 skb_shinfo(skb)->frags[0].page_offset =
945 page_info->page_offset + hdr_len;
946 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
947 skb->data_len = curr_frag_len - hdr_len;
948 skb->tail += hdr_len;
950 page_info->page = NULL;
952 if (pktsize <= rx_frag_size) {
953 BUG_ON(num_rcvd != 1);
957 /* More frags present for this completion */
959 for (i = 1, j = 0; i < num_rcvd; i++) {
960 size -= curr_frag_len;
961 index_inc(&rxq_idx, rxq->len);
962 page_info = get_rx_page_info(adapter, rxo, rxq_idx);
964 curr_frag_len = min(size, rx_frag_size);
966 /* Coalesce all frags from the same physical page in one slot */
967 if (page_info->page_offset == 0) {
970 skb_shinfo(skb)->frags[j].page = page_info->page;
971 skb_shinfo(skb)->frags[j].page_offset =
972 page_info->page_offset;
973 skb_shinfo(skb)->frags[j].size = 0;
974 skb_shinfo(skb)->nr_frags++;
976 put_page(page_info->page);
979 skb_shinfo(skb)->frags[j].size += curr_frag_len;
980 skb->len += curr_frag_len;
981 skb->data_len += curr_frag_len;
983 page_info->page = NULL;
985 BUG_ON(j > MAX_SKB_FRAGS);
988 be_rx_stats_update(rxo, pktsize, num_rcvd, pkt_type);
991 /* Process the RX completion indicated by rxcp when GRO is disabled */
992 static void be_rx_compl_process(struct be_adapter *adapter,
993 struct be_rx_obj *rxo,
994 struct be_eth_rx_compl *rxcp)
1001 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
1002 /* Is it a flush compl that has no data */
1003 if (unlikely(num_rcvd == 0))
1006 skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
1007 if (unlikely(!skb)) {
1008 if (net_ratelimit())
1009 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
1010 be_rx_compl_discard(adapter, rxo, rxcp);
1014 skb_fill_rx_data(adapter, rxo, skb, rxcp, num_rcvd);
1016 if (likely(adapter->rx_csum && csum_passed(rxcp)))
1017 skb->ip_summed = CHECKSUM_UNNECESSARY;
1019 skb_checksum_none_assert(skb);
1021 skb->truesize = skb->len + sizeof(struct sk_buff);
1022 skb->protocol = eth_type_trans(skb, adapter->netdev);
1024 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
1025 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
1027 /* vlanf could be wrongly set in some cards.
1028 * ignore if vtm is not set */
1029 if ((adapter->function_mode & 0x400) && !vtm)
1032 if (unlikely(vlanf)) {
1033 if (!adapter->vlan_grp || adapter->vlans_added == 0) {
1037 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
1039 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
1041 netif_receive_skb(skb);
1045 /* Process the RX completion indicated by rxcp when GRO is enabled */
1046 static void be_rx_compl_process_gro(struct be_adapter *adapter,
1047 struct be_rx_obj *rxo,
1048 struct be_eth_rx_compl *rxcp)
1050 struct be_rx_page_info *page_info;
1051 struct sk_buff *skb = NULL;
1052 struct be_queue_info *rxq = &rxo->q;
1053 struct be_eq_obj *eq_obj = &rxo->rx_eq;
1054 u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
1055 u16 i, rxq_idx = 0, vid, j;
1059 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
1060 /* Is it a flush compl that has no data */
1061 if (unlikely(num_rcvd == 0))
1064 pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
1065 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
1066 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
1067 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
1068 pkt_type = AMAP_GET_BITS(struct amap_eth_rx_compl, cast_enc, rxcp);
1070 /* vlanf could be wrongly set in some cards.
1071 * ignore if vtm is not set */
1072 if ((adapter->function_mode & 0x400) && !vtm)
1075 skb = napi_get_frags(&eq_obj->napi);
1077 be_rx_compl_discard(adapter, rxo, rxcp);
1081 remaining = pkt_size;
1082 for (i = 0, j = -1; i < num_rcvd; i++) {
1083 page_info = get_rx_page_info(adapter, rxo, rxq_idx);
1085 curr_frag_len = min(remaining, rx_frag_size);
1087 /* Coalesce all frags from the same physical page in one slot */
1088 if (i == 0 || page_info->page_offset == 0) {
1089 /* First frag or Fresh page */
1091 skb_shinfo(skb)->frags[j].page = page_info->page;
1092 skb_shinfo(skb)->frags[j].page_offset =
1093 page_info->page_offset;
1094 skb_shinfo(skb)->frags[j].size = 0;
1096 put_page(page_info->page);
1098 skb_shinfo(skb)->frags[j].size += curr_frag_len;
1100 remaining -= curr_frag_len;
1101 index_inc(&rxq_idx, rxq->len);
1102 memset(page_info, 0, sizeof(*page_info));
1104 BUG_ON(j > MAX_SKB_FRAGS);
1106 skb_shinfo(skb)->nr_frags = j + 1;
1107 skb->len = pkt_size;
1108 skb->data_len = pkt_size;
1109 skb->truesize += pkt_size;
1110 skb->ip_summed = CHECKSUM_UNNECESSARY;
1112 if (likely(!vlanf)) {
1113 napi_gro_frags(&eq_obj->napi);
1115 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
1118 if (!adapter->vlan_grp || adapter->vlans_added == 0)
1121 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
1124 be_rx_stats_update(rxo, pkt_size, num_rcvd, pkt_type);
1127 static struct be_eth_rx_compl *be_rx_compl_get(struct be_rx_obj *rxo)
1129 struct be_eth_rx_compl *rxcp = queue_tail_node(&rxo->cq);
1131 if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
1135 be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
1137 queue_tail_inc(&rxo->cq);
1141 /* To reset the valid bit, we need to reset the whole word as
1142 * when walking the queue the valid entries are little-endian
1143 * and invalid entries are host endian
1145 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
1147 rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
1150 static inline struct page *be_alloc_pages(u32 size)
1152 gfp_t alloc_flags = GFP_ATOMIC;
1153 u32 order = get_order(size);
1155 alloc_flags |= __GFP_COMP;
1156 return alloc_pages(alloc_flags, order);
1160 * Allocate a page, split it to fragments of size rx_frag_size and post as
1161 * receive buffers to BE
1163 static void be_post_rx_frags(struct be_rx_obj *rxo)
1165 struct be_adapter *adapter = rxo->adapter;
1166 struct be_rx_page_info *page_info_tbl = rxo->page_info_tbl;
1167 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1168 struct be_queue_info *rxq = &rxo->q;
1169 struct page *pagep = NULL;
1170 struct be_eth_rx_d *rxd;
1171 u64 page_dmaaddr = 0, frag_dmaaddr;
1172 u32 posted, page_offset = 0;
1174 page_info = &rxo->page_info_tbl[rxq->head];
1175 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1177 pagep = be_alloc_pages(adapter->big_page_size);
1178 if (unlikely(!pagep)) {
1179 rxo->stats.rx_post_fail++;
1182 page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
1183 adapter->big_page_size,
1184 PCI_DMA_FROMDEVICE);
1185 page_info->page_offset = 0;
1188 page_info->page_offset = page_offset + rx_frag_size;
1190 page_offset = page_info->page_offset;
1191 page_info->page = pagep;
1192 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1193 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1195 rxd = queue_head_node(rxq);
1196 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1197 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1199 /* Any space left in the current big page for another frag? */
1200 if ((page_offset + rx_frag_size + rx_frag_size) >
1201 adapter->big_page_size) {
1203 page_info->last_page_user = true;
1206 prev_page_info = page_info;
1207 queue_head_inc(rxq);
1208 page_info = &page_info_tbl[rxq->head];
1211 prev_page_info->last_page_user = true;
1214 atomic_add(posted, &rxq->used);
1215 be_rxq_notify(adapter, rxq->id, posted);
1216 } else if (atomic_read(&rxq->used) == 0) {
1217 /* Let be_worker replenish when memory is available */
1218 rxo->rx_post_starved = true;
1222 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1224 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1226 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1230 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1232 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1234 queue_tail_inc(tx_cq);
1238 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
1240 struct be_queue_info *txq = &adapter->tx_obj.q;
1241 struct be_eth_wrb *wrb;
1242 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
1243 struct sk_buff *sent_skb;
1244 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1245 bool unmap_skb_hdr = true;
1247 sent_skb = sent_skbs[txq->tail];
1249 sent_skbs[txq->tail] = NULL;
1251 /* skip header wrb */
1252 queue_tail_inc(txq);
1255 cur_index = txq->tail;
1256 wrb = queue_tail_node(txq);
1257 unmap_tx_frag(adapter->pdev, wrb, (unmap_skb_hdr &&
1258 skb_headlen(sent_skb)));
1259 unmap_skb_hdr = false;
1262 queue_tail_inc(txq);
1263 } while (cur_index != last_index);
1265 atomic_sub(num_wrbs, &txq->used);
1267 kfree_skb(sent_skb);
1270 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1272 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1278 eqe->evt = le32_to_cpu(eqe->evt);
1279 queue_tail_inc(&eq_obj->q);
1283 static int event_handle(struct be_adapter *adapter,
1284 struct be_eq_obj *eq_obj)
1286 struct be_eq_entry *eqe;
1289 while ((eqe = event_get(eq_obj)) != NULL) {
1294 /* Deal with any spurious interrupts that come
1297 be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1299 napi_schedule(&eq_obj->napi);
1304 /* Just read and notify events without processing them.
1305 * Used at the time of destroying event queues */
1306 static void be_eq_clean(struct be_adapter *adapter,
1307 struct be_eq_obj *eq_obj)
1309 struct be_eq_entry *eqe;
1312 while ((eqe = event_get(eq_obj)) != NULL) {
1318 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1321 static void be_rx_q_clean(struct be_adapter *adapter, struct be_rx_obj *rxo)
1323 struct be_rx_page_info *page_info;
1324 struct be_queue_info *rxq = &rxo->q;
1325 struct be_queue_info *rx_cq = &rxo->cq;
1326 struct be_eth_rx_compl *rxcp;
1329 /* First cleanup pending rx completions */
1330 while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1331 be_rx_compl_discard(adapter, rxo, rxcp);
1332 be_rx_compl_reset(rxcp);
1333 be_cq_notify(adapter, rx_cq->id, true, 1);
1336 /* Then free posted rx buffer that were not used */
1337 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1338 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1339 page_info = get_rx_page_info(adapter, rxo, tail);
1340 put_page(page_info->page);
1341 memset(page_info, 0, sizeof(*page_info));
1343 BUG_ON(atomic_read(&rxq->used));
1346 static void be_tx_compl_clean(struct be_adapter *adapter)
1348 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1349 struct be_queue_info *txq = &adapter->tx_obj.q;
1350 struct be_eth_tx_compl *txcp;
1351 u16 end_idx, cmpl = 0, timeo = 0;
1352 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
1353 struct sk_buff *sent_skb;
1356 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1358 while ((txcp = be_tx_compl_get(tx_cq))) {
1359 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1361 be_tx_compl_process(adapter, end_idx);
1365 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1369 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1375 if (atomic_read(&txq->used))
1376 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1377 atomic_read(&txq->used));
1379 /* free posted tx for which compls will never arrive */
1380 while (atomic_read(&txq->used)) {
1381 sent_skb = sent_skbs[txq->tail];
1382 end_idx = txq->tail;
1384 wrb_cnt_for_skb(sent_skb, &dummy_wrb) - 1, txq->len);
1385 be_tx_compl_process(adapter, end_idx);
1389 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1391 struct be_queue_info *q;
1393 q = &adapter->mcc_obj.q;
1395 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1396 be_queue_free(adapter, q);
1398 q = &adapter->mcc_obj.cq;
1400 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1401 be_queue_free(adapter, q);
1404 /* Must be called only after TX qs are created as MCC shares TX EQ */
1405 static int be_mcc_queues_create(struct be_adapter *adapter)
1407 struct be_queue_info *q, *cq;
1409 /* Alloc MCC compl queue */
1410 cq = &adapter->mcc_obj.cq;
1411 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1412 sizeof(struct be_mcc_compl)))
1415 /* Ask BE to create MCC compl queue; share TX's eq */
1416 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1419 /* Alloc MCC queue */
1420 q = &adapter->mcc_obj.q;
1421 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1422 goto mcc_cq_destroy;
1424 /* Ask BE to create MCC queue */
1425 if (be_cmd_mccq_create(adapter, q, cq))
1431 be_queue_free(adapter, q);
1433 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1435 be_queue_free(adapter, cq);
1440 static void be_tx_queues_destroy(struct be_adapter *adapter)
1442 struct be_queue_info *q;
1444 q = &adapter->tx_obj.q;
1446 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1447 be_queue_free(adapter, q);
1449 q = &adapter->tx_obj.cq;
1451 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1452 be_queue_free(adapter, q);
1454 /* Clear any residual events */
1455 be_eq_clean(adapter, &adapter->tx_eq);
1457 q = &adapter->tx_eq.q;
1459 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1460 be_queue_free(adapter, q);
1463 static int be_tx_queues_create(struct be_adapter *adapter)
1465 struct be_queue_info *eq, *q, *cq;
1467 adapter->tx_eq.max_eqd = 0;
1468 adapter->tx_eq.min_eqd = 0;
1469 adapter->tx_eq.cur_eqd = 96;
1470 adapter->tx_eq.enable_aic = false;
1471 /* Alloc Tx Event queue */
1472 eq = &adapter->tx_eq.q;
1473 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1476 /* Ask BE to create Tx Event queue */
1477 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1479 adapter->base_eq_id = adapter->tx_eq.q.id;
1481 /* Alloc TX eth compl queue */
1482 cq = &adapter->tx_obj.cq;
1483 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1484 sizeof(struct be_eth_tx_compl)))
1487 /* Ask BE to create Tx eth compl queue */
1488 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1491 /* Alloc TX eth queue */
1492 q = &adapter->tx_obj.q;
1493 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1496 /* Ask BE to create Tx eth queue */
1497 if (be_cmd_txq_create(adapter, q, cq))
1502 be_queue_free(adapter, q);
1504 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1506 be_queue_free(adapter, cq);
1508 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1510 be_queue_free(adapter, eq);
1514 static void be_rx_queues_destroy(struct be_adapter *adapter)
1516 struct be_queue_info *q;
1517 struct be_rx_obj *rxo;
1520 for_all_rx_queues(adapter, rxo, i) {
1523 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1524 /* After the rxq is invalidated, wait for a grace time
1525 * of 1ms for all dma to end and the flush compl to
1529 be_rx_q_clean(adapter, rxo);
1531 be_queue_free(adapter, q);
1535 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1536 be_queue_free(adapter, q);
1538 /* Clear any residual events */
1541 be_eq_clean(adapter, &rxo->rx_eq);
1542 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1544 be_queue_free(adapter, q);
1548 static int be_rx_queues_create(struct be_adapter *adapter)
1550 struct be_queue_info *eq, *q, *cq;
1551 struct be_rx_obj *rxo;
1554 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1555 for_all_rx_queues(adapter, rxo, i) {
1556 rxo->adapter = adapter;
1557 rxo->rx_eq.max_eqd = BE_MAX_EQD;
1558 rxo->rx_eq.enable_aic = true;
1562 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1563 sizeof(struct be_eq_entry));
1567 rc = be_cmd_eq_create(adapter, eq, rxo->rx_eq.cur_eqd);
1573 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1574 sizeof(struct be_eth_rx_compl));
1578 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1584 rc = be_queue_alloc(adapter, q, RX_Q_LEN,
1585 sizeof(struct be_eth_rx_d));
1589 rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1590 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle,
1591 (i > 0) ? 1 : 0/* rss enable */, &rxo->rss_id);
1596 if (be_multi_rxq(adapter)) {
1597 u8 rsstable[MAX_RSS_QS];
1599 for_all_rss_queues(adapter, rxo, i)
1600 rsstable[i] = rxo->rss_id;
1602 rc = be_cmd_rss_config(adapter, rsstable,
1603 adapter->num_rx_qs - 1);
1610 be_rx_queues_destroy(adapter);
1614 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1615 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1617 return eq_id - adapter->base_eq_id;
1620 static irqreturn_t be_intx(int irq, void *dev)
1622 struct be_adapter *adapter = dev;
1623 struct be_rx_obj *rxo;
1626 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1627 (adapter->tx_eq.q.id/ 8) * CEV_ISR_SIZE);
1631 if ((1 << be_evt_bit_get(adapter, adapter->tx_eq.q.id) & isr))
1632 event_handle(adapter, &adapter->tx_eq);
1634 for_all_rx_queues(adapter, rxo, i) {
1635 if ((1 << be_evt_bit_get(adapter, rxo->rx_eq.q.id) & isr))
1636 event_handle(adapter, &rxo->rx_eq);
1642 static irqreturn_t be_msix_rx(int irq, void *dev)
1644 struct be_rx_obj *rxo = dev;
1645 struct be_adapter *adapter = rxo->adapter;
1647 event_handle(adapter, &rxo->rx_eq);
1652 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1654 struct be_adapter *adapter = dev;
1656 event_handle(adapter, &adapter->tx_eq);
1661 static inline bool do_gro(struct be_adapter *adapter, struct be_rx_obj *rxo,
1662 struct be_eth_rx_compl *rxcp)
1664 int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1665 int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1668 rxo->stats.rxcp_err++;
1670 return (tcp_frame && !err) ? true : false;
1673 static int be_poll_rx(struct napi_struct *napi, int budget)
1675 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1676 struct be_rx_obj *rxo = container_of(rx_eq, struct be_rx_obj, rx_eq);
1677 struct be_adapter *adapter = rxo->adapter;
1678 struct be_queue_info *rx_cq = &rxo->cq;
1679 struct be_eth_rx_compl *rxcp;
1682 rxo->stats.rx_polls++;
1683 for (work_done = 0; work_done < budget; work_done++) {
1684 rxcp = be_rx_compl_get(rxo);
1688 if (do_gro(adapter, rxo, rxcp))
1689 be_rx_compl_process_gro(adapter, rxo, rxcp);
1691 be_rx_compl_process(adapter, rxo, rxcp);
1693 be_rx_compl_reset(rxcp);
1696 /* Refill the queue */
1697 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
1698 be_post_rx_frags(rxo);
1701 if (work_done < budget) {
1702 napi_complete(napi);
1703 be_cq_notify(adapter, rx_cq->id, true, work_done);
1705 /* More to be consumed; continue with interrupts disabled */
1706 be_cq_notify(adapter, rx_cq->id, false, work_done);
1711 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1712 * For TX/MCC we don't honour budget; consume everything
1714 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1716 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1717 struct be_adapter *adapter =
1718 container_of(tx_eq, struct be_adapter, tx_eq);
1719 struct be_queue_info *txq = &adapter->tx_obj.q;
1720 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1721 struct be_eth_tx_compl *txcp;
1722 int tx_compl = 0, mcc_compl, status = 0;
1725 while ((txcp = be_tx_compl_get(tx_cq))) {
1726 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1728 be_tx_compl_process(adapter, end_idx);
1732 mcc_compl = be_process_mcc(adapter, &status);
1734 napi_complete(napi);
1737 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1738 be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl);
1742 be_cq_notify(adapter, adapter->tx_obj.cq.id, true, tx_compl);
1744 /* As Tx wrbs have been freed up, wake up netdev queue if
1745 * it was stopped due to lack of tx wrbs.
1747 if (netif_queue_stopped(adapter->netdev) &&
1748 atomic_read(&txq->used) < txq->len / 2) {
1749 netif_wake_queue(adapter->netdev);
1752 tx_stats(adapter)->be_tx_events++;
1753 tx_stats(adapter)->be_tx_compl += tx_compl;
1759 void be_detect_dump_ue(struct be_adapter *adapter)
1761 u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask;
1764 pci_read_config_dword(adapter->pdev,
1765 PCICFG_UE_STATUS_LOW, &ue_status_lo);
1766 pci_read_config_dword(adapter->pdev,
1767 PCICFG_UE_STATUS_HIGH, &ue_status_hi);
1768 pci_read_config_dword(adapter->pdev,
1769 PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask);
1770 pci_read_config_dword(adapter->pdev,
1771 PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask);
1773 ue_status_lo = (ue_status_lo & (~ue_status_lo_mask));
1774 ue_status_hi = (ue_status_hi & (~ue_status_hi_mask));
1776 if (ue_status_lo || ue_status_hi) {
1777 adapter->ue_detected = true;
1778 dev_err(&adapter->pdev->dev, "UE Detected!!\n");
1782 for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) {
1783 if (ue_status_lo & 1)
1784 dev_err(&adapter->pdev->dev,
1785 "UE: %s bit set\n", ue_status_low_desc[i]);
1789 for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) {
1790 if (ue_status_hi & 1)
1791 dev_err(&adapter->pdev->dev,
1792 "UE: %s bit set\n", ue_status_hi_desc[i]);
1798 static void be_worker(struct work_struct *work)
1800 struct be_adapter *adapter =
1801 container_of(work, struct be_adapter, work.work);
1802 struct be_rx_obj *rxo;
1805 /* when interrupts are not yet enabled, just reap any pending
1806 * mcc completions */
1807 if (!netif_running(adapter->netdev)) {
1808 int mcc_compl, status = 0;
1810 mcc_compl = be_process_mcc(adapter, &status);
1813 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1814 be_cq_notify(adapter, mcc_obj->cq.id, false, mcc_compl);
1819 if (!adapter->stats_ioctl_sent)
1820 be_cmd_get_stats(adapter, &adapter->stats_cmd);
1822 be_tx_rate_update(adapter);
1824 for_all_rx_queues(adapter, rxo, i) {
1825 be_rx_rate_update(rxo);
1826 be_rx_eqd_update(adapter, rxo);
1828 if (rxo->rx_post_starved) {
1829 rxo->rx_post_starved = false;
1830 be_post_rx_frags(rxo);
1834 if (!adapter->ue_detected)
1835 be_detect_dump_ue(adapter);
1838 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1841 static void be_msix_disable(struct be_adapter *adapter)
1843 if (adapter->msix_enabled) {
1844 pci_disable_msix(adapter->pdev);
1845 adapter->msix_enabled = false;
1849 static int be_num_rxqs_get(struct be_adapter *adapter)
1851 if (multi_rxq && (adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
1852 !adapter->sriov_enabled && !(adapter->function_mode & 0x400)) {
1853 return 1 + MAX_RSS_QS; /* one default non-RSS queue */
1855 dev_warn(&adapter->pdev->dev,
1856 "No support for multiple RX queues\n");
1861 static void be_msix_enable(struct be_adapter *adapter)
1863 #define BE_MIN_MSIX_VECTORS (1 + 1) /* Rx + Tx */
1866 adapter->num_rx_qs = be_num_rxqs_get(adapter);
1868 for (i = 0; i < (adapter->num_rx_qs + 1); i++)
1869 adapter->msix_entries[i].entry = i;
1871 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1872 adapter->num_rx_qs + 1);
1875 } else if (status >= BE_MIN_MSIX_VECTORS) {
1876 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
1878 adapter->num_rx_qs = status - 1;
1879 dev_warn(&adapter->pdev->dev,
1880 "Could alloc only %d MSIx vectors. "
1881 "Using %d RX Qs\n", status, adapter->num_rx_qs);
1887 adapter->msix_enabled = true;
1890 static void be_sriov_enable(struct be_adapter *adapter)
1892 be_check_sriov_fn_type(adapter);
1893 #ifdef CONFIG_PCI_IOV
1894 if (be_physfn(adapter) && num_vfs) {
1897 status = pci_enable_sriov(adapter->pdev, num_vfs);
1898 adapter->sriov_enabled = status ? false : true;
1903 static void be_sriov_disable(struct be_adapter *adapter)
1905 #ifdef CONFIG_PCI_IOV
1906 if (adapter->sriov_enabled) {
1907 pci_disable_sriov(adapter->pdev);
1908 adapter->sriov_enabled = false;
1913 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1915 return adapter->msix_entries[
1916 be_evt_bit_get(adapter, eq_id)].vector;
1919 static int be_request_irq(struct be_adapter *adapter,
1920 struct be_eq_obj *eq_obj,
1921 void *handler, char *desc, void *context)
1923 struct net_device *netdev = adapter->netdev;
1926 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1927 vec = be_msix_vec_get(adapter, eq_obj->q.id);
1928 return request_irq(vec, handler, 0, eq_obj->desc, context);
1931 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj,
1934 int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1935 free_irq(vec, context);
1938 static int be_msix_register(struct be_adapter *adapter)
1940 struct be_rx_obj *rxo;
1944 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx",
1949 for_all_rx_queues(adapter, rxo, i) {
1950 sprintf(qname, "rxq%d", i);
1951 status = be_request_irq(adapter, &rxo->rx_eq, be_msix_rx,
1960 be_free_irq(adapter, &adapter->tx_eq, adapter);
1962 for (i--, rxo = &adapter->rx_obj[i]; i >= 0; i--, rxo--)
1963 be_free_irq(adapter, &rxo->rx_eq, rxo);
1966 dev_warn(&adapter->pdev->dev,
1967 "MSIX Request IRQ failed - err %d\n", status);
1968 pci_disable_msix(adapter->pdev);
1969 adapter->msix_enabled = false;
1973 static int be_irq_register(struct be_adapter *adapter)
1975 struct net_device *netdev = adapter->netdev;
1978 if (adapter->msix_enabled) {
1979 status = be_msix_register(adapter);
1982 /* INTx is not supported for VF */
1983 if (!be_physfn(adapter))
1988 netdev->irq = adapter->pdev->irq;
1989 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1992 dev_err(&adapter->pdev->dev,
1993 "INTx request IRQ failed - err %d\n", status);
1997 adapter->isr_registered = true;
2001 static void be_irq_unregister(struct be_adapter *adapter)
2003 struct net_device *netdev = adapter->netdev;
2004 struct be_rx_obj *rxo;
2007 if (!adapter->isr_registered)
2011 if (!adapter->msix_enabled) {
2012 free_irq(netdev->irq, adapter);
2017 be_free_irq(adapter, &adapter->tx_eq, adapter);
2019 for_all_rx_queues(adapter, rxo, i)
2020 be_free_irq(adapter, &rxo->rx_eq, rxo);
2023 adapter->isr_registered = false;
2026 static int be_close(struct net_device *netdev)
2028 struct be_adapter *adapter = netdev_priv(netdev);
2029 struct be_rx_obj *rxo;
2030 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2033 be_async_mcc_disable(adapter);
2035 netif_stop_queue(netdev);
2036 netif_carrier_off(netdev);
2037 adapter->link_up = false;
2039 be_intr_set(adapter, false);
2041 if (adapter->msix_enabled) {
2042 vec = be_msix_vec_get(adapter, tx_eq->q.id);
2043 synchronize_irq(vec);
2045 for_all_rx_queues(adapter, rxo, i) {
2046 vec = be_msix_vec_get(adapter, rxo->rx_eq.q.id);
2047 synchronize_irq(vec);
2050 synchronize_irq(netdev->irq);
2052 be_irq_unregister(adapter);
2054 for_all_rx_queues(adapter, rxo, i)
2055 napi_disable(&rxo->rx_eq.napi);
2057 napi_disable(&tx_eq->napi);
2059 /* Wait for all pending tx completions to arrive so that
2060 * all tx skbs are freed.
2062 be_tx_compl_clean(adapter);
2067 static int be_open(struct net_device *netdev)
2069 struct be_adapter *adapter = netdev_priv(netdev);
2070 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2071 struct be_rx_obj *rxo;
2077 for_all_rx_queues(adapter, rxo, i) {
2078 be_post_rx_frags(rxo);
2079 napi_enable(&rxo->rx_eq.napi);
2081 napi_enable(&tx_eq->napi);
2083 be_irq_register(adapter);
2085 be_intr_set(adapter, true);
2087 /* The evt queues are created in unarmed state; arm them */
2088 for_all_rx_queues(adapter, rxo, i) {
2089 be_eq_notify(adapter, rxo->rx_eq.q.id, true, false, 0);
2090 be_cq_notify(adapter, rxo->cq.id, true, 0);
2092 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
2094 /* Now that interrupts are on we can process async mcc */
2095 be_async_mcc_enable(adapter);
2097 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
2101 be_link_status_update(adapter, link_up);
2103 if (be_physfn(adapter)) {
2104 status = be_vid_config(adapter, false, 0);
2108 status = be_cmd_set_flow_control(adapter,
2109 adapter->tx_fc, adapter->rx_fc);
2116 be_close(adapter->netdev);
2120 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2122 struct be_dma_mem cmd;
2126 memset(mac, 0, ETH_ALEN);
2128 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2129 cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
2132 memset(cmd.va, 0, cmd.size);
2135 status = pci_write_config_dword(adapter->pdev,
2136 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2138 dev_err(&adapter->pdev->dev,
2139 "Could not enable Wake-on-lan\n");
2140 pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
2144 status = be_cmd_enable_magic_wol(adapter,
2145 adapter->netdev->dev_addr, &cmd);
2146 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2147 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2149 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2150 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2151 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2154 pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
2159 * Generate a seed MAC address from the PF MAC Address using jhash.
2160 * MAC Address for VFs are assigned incrementally starting from the seed.
2161 * These addresses are programmed in the ASIC by the PF and the VF driver
2162 * queries for the MAC address during its probe.
2164 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2170 be_vf_eth_addr_generate(adapter, mac);
2172 for (vf = 0; vf < num_vfs; vf++) {
2173 status = be_cmd_pmac_add(adapter, mac,
2174 adapter->vf_cfg[vf].vf_if_handle,
2175 &adapter->vf_cfg[vf].vf_pmac_id);
2177 dev_err(&adapter->pdev->dev,
2178 "Mac address add failed for VF %d\n", vf);
2180 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
2187 static inline void be_vf_eth_addr_rem(struct be_adapter *adapter)
2191 for (vf = 0; vf < num_vfs; vf++) {
2192 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
2193 be_cmd_pmac_del(adapter,
2194 adapter->vf_cfg[vf].vf_if_handle,
2195 adapter->vf_cfg[vf].vf_pmac_id);
2199 static int be_setup(struct be_adapter *adapter)
2201 struct net_device *netdev = adapter->netdev;
2202 u32 cap_flags, en_flags, vf = 0;
2206 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST;
2208 if (be_physfn(adapter)) {
2209 cap_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS |
2210 BE_IF_FLAGS_PROMISCUOUS |
2211 BE_IF_FLAGS_PASS_L3L4_ERRORS;
2212 en_flags |= BE_IF_FLAGS_PASS_L3L4_ERRORS;
2214 if (be_multi_rxq(adapter)) {
2215 cap_flags |= BE_IF_FLAGS_RSS;
2216 en_flags |= BE_IF_FLAGS_RSS;
2220 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2221 netdev->dev_addr, false/* pmac_invalid */,
2222 &adapter->if_handle, &adapter->pmac_id, 0);
2226 if (be_physfn(adapter)) {
2227 while (vf < num_vfs) {
2228 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED
2229 | BE_IF_FLAGS_BROADCAST;
2230 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2232 &adapter->vf_cfg[vf].vf_if_handle,
2235 dev_err(&adapter->pdev->dev,
2236 "Interface Create failed for VF %d\n", vf);
2239 adapter->vf_cfg[vf].vf_pmac_id = BE_INVALID_PMAC_ID;
2242 } else if (!be_physfn(adapter)) {
2243 status = be_cmd_mac_addr_query(adapter, mac,
2244 MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
2246 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2247 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2251 status = be_tx_queues_create(adapter);
2255 status = be_rx_queues_create(adapter);
2259 status = be_mcc_queues_create(adapter);
2263 if (be_physfn(adapter)) {
2264 status = be_vf_eth_addr_config(adapter);
2269 adapter->link_speed = -1;
2274 if (be_physfn(adapter))
2275 be_vf_eth_addr_rem(adapter);
2276 be_mcc_queues_destroy(adapter);
2278 be_rx_queues_destroy(adapter);
2280 be_tx_queues_destroy(adapter);
2282 for (vf = 0; vf < num_vfs; vf++)
2283 if (adapter->vf_cfg[vf].vf_if_handle)
2284 be_cmd_if_destroy(adapter,
2285 adapter->vf_cfg[vf].vf_if_handle);
2286 be_cmd_if_destroy(adapter, adapter->if_handle);
2291 static int be_clear(struct be_adapter *adapter)
2293 if (be_physfn(adapter))
2294 be_vf_eth_addr_rem(adapter);
2296 be_mcc_queues_destroy(adapter);
2297 be_rx_queues_destroy(adapter);
2298 be_tx_queues_destroy(adapter);
2300 be_cmd_if_destroy(adapter, adapter->if_handle);
2302 /* tell fw we're done with firing cmds */
2303 be_cmd_fw_clean(adapter);
2308 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
2309 static bool be_flash_redboot(struct be_adapter *adapter,
2310 const u8 *p, u32 img_start, int image_size,
2317 crc_offset = hdr_size + img_start + image_size - 4;
2321 status = be_cmd_get_flash_crc(adapter, flashed_crc,
2324 dev_err(&adapter->pdev->dev,
2325 "could not get crc from flash, not flashing redboot\n");
2329 /*update redboot only if crc does not match*/
2330 if (!memcmp(flashed_crc, p, 4))
2336 static int be_flash_data(struct be_adapter *adapter,
2337 const struct firmware *fw,
2338 struct be_dma_mem *flash_cmd, int num_of_images)
2341 int status = 0, i, filehdr_size = 0;
2342 u32 total_bytes = 0, flash_op;
2344 const u8 *p = fw->data;
2345 struct be_cmd_write_flashrom *req = flash_cmd->va;
2346 struct flash_comp *pflashcomp;
2349 struct flash_comp gen3_flash_types[9] = {
2350 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
2351 FLASH_IMAGE_MAX_SIZE_g3},
2352 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
2353 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
2354 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
2355 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2356 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
2357 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2358 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
2359 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2360 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
2361 FLASH_IMAGE_MAX_SIZE_g3},
2362 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
2363 FLASH_IMAGE_MAX_SIZE_g3},
2364 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
2365 FLASH_IMAGE_MAX_SIZE_g3},
2366 { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW,
2367 FLASH_NCSI_IMAGE_MAX_SIZE_g3}
2369 struct flash_comp gen2_flash_types[8] = {
2370 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
2371 FLASH_IMAGE_MAX_SIZE_g2},
2372 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
2373 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
2374 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
2375 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2376 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
2377 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2378 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
2379 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2380 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
2381 FLASH_IMAGE_MAX_SIZE_g2},
2382 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
2383 FLASH_IMAGE_MAX_SIZE_g2},
2384 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
2385 FLASH_IMAGE_MAX_SIZE_g2}
2388 if (adapter->generation == BE_GEN3) {
2389 pflashcomp = gen3_flash_types;
2390 filehdr_size = sizeof(struct flash_file_hdr_g3);
2393 pflashcomp = gen2_flash_types;
2394 filehdr_size = sizeof(struct flash_file_hdr_g2);
2397 for (i = 0; i < num_comp; i++) {
2398 if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) &&
2399 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
2401 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
2402 (!be_flash_redboot(adapter, fw->data,
2403 pflashcomp[i].offset, pflashcomp[i].size,
2407 p += filehdr_size + pflashcomp[i].offset
2408 + (num_of_images * sizeof(struct image_hdr));
2409 if (p + pflashcomp[i].size > fw->data + fw->size)
2411 total_bytes = pflashcomp[i].size;
2412 while (total_bytes) {
2413 if (total_bytes > 32*1024)
2414 num_bytes = 32*1024;
2416 num_bytes = total_bytes;
2417 total_bytes -= num_bytes;
2420 flash_op = FLASHROM_OPER_FLASH;
2422 flash_op = FLASHROM_OPER_SAVE;
2423 memcpy(req->params.data_buf, p, num_bytes);
2425 status = be_cmd_write_flashrom(adapter, flash_cmd,
2426 pflashcomp[i].optype, flash_op, num_bytes);
2428 dev_err(&adapter->pdev->dev,
2429 "cmd to write to flash rom failed.\n");
2438 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
2442 if (fhdr->build[0] == '3')
2444 else if (fhdr->build[0] == '2')
2450 int be_load_fw(struct be_adapter *adapter, u8 *func)
2452 char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
2453 const struct firmware *fw;
2454 struct flash_file_hdr_g2 *fhdr;
2455 struct flash_file_hdr_g3 *fhdr3;
2456 struct image_hdr *img_hdr_ptr = NULL;
2457 struct be_dma_mem flash_cmd;
2458 int status, i = 0, num_imgs = 0;
2461 strcpy(fw_file, func);
2463 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
2468 fhdr = (struct flash_file_hdr_g2 *) p;
2469 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
2471 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
2472 flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
2474 if (!flash_cmd.va) {
2476 dev_err(&adapter->pdev->dev,
2477 "Memory allocation failure while flashing\n");
2481 if ((adapter->generation == BE_GEN3) &&
2482 (get_ufigen_type(fhdr) == BE_GEN3)) {
2483 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
2484 num_imgs = le32_to_cpu(fhdr3->num_imgs);
2485 for (i = 0; i < num_imgs; i++) {
2486 img_hdr_ptr = (struct image_hdr *) (fw->data +
2487 (sizeof(struct flash_file_hdr_g3) +
2488 i * sizeof(struct image_hdr)));
2489 if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
2490 status = be_flash_data(adapter, fw, &flash_cmd,
2493 } else if ((adapter->generation == BE_GEN2) &&
2494 (get_ufigen_type(fhdr) == BE_GEN2)) {
2495 status = be_flash_data(adapter, fw, &flash_cmd, 0);
2497 dev_err(&adapter->pdev->dev,
2498 "UFI and Interface are not compatible for flashing\n");
2502 pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
2505 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2509 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2512 release_firmware(fw);
2516 static struct net_device_ops be_netdev_ops = {
2517 .ndo_open = be_open,
2518 .ndo_stop = be_close,
2519 .ndo_start_xmit = be_xmit,
2520 .ndo_set_rx_mode = be_set_multicast_list,
2521 .ndo_set_mac_address = be_mac_addr_set,
2522 .ndo_change_mtu = be_change_mtu,
2523 .ndo_validate_addr = eth_validate_addr,
2524 .ndo_vlan_rx_register = be_vlan_register,
2525 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2526 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2527 .ndo_set_vf_mac = be_set_vf_mac,
2528 .ndo_set_vf_vlan = be_set_vf_vlan,
2529 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
2530 .ndo_get_vf_config = be_get_vf_config
2533 static void be_netdev_init(struct net_device *netdev)
2535 struct be_adapter *adapter = netdev_priv(netdev);
2536 struct be_rx_obj *rxo;
2539 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2540 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
2541 NETIF_F_GRO | NETIF_F_TSO6;
2543 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
2545 netdev->flags |= IFF_MULTICAST;
2547 adapter->rx_csum = true;
2549 /* Default settings for Rx and Tx flow control */
2550 adapter->rx_fc = true;
2551 adapter->tx_fc = true;
2553 netif_set_gso_max_size(netdev, 65535);
2555 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2557 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2559 for_all_rx_queues(adapter, rxo, i)
2560 netif_napi_add(netdev, &rxo->rx_eq.napi, be_poll_rx,
2563 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2566 netif_stop_queue(netdev);
2569 static void be_unmap_pci_bars(struct be_adapter *adapter)
2572 iounmap(adapter->csr);
2574 iounmap(adapter->db);
2575 if (adapter->pcicfg && be_physfn(adapter))
2576 iounmap(adapter->pcicfg);
2579 static int be_map_pci_bars(struct be_adapter *adapter)
2582 int pcicfg_reg, db_reg;
2584 if (be_physfn(adapter)) {
2585 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2586 pci_resource_len(adapter->pdev, 2));
2589 adapter->csr = addr;
2592 if (adapter->generation == BE_GEN2) {
2597 if (be_physfn(adapter))
2602 addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
2603 pci_resource_len(adapter->pdev, db_reg));
2608 if (be_physfn(adapter)) {
2609 addr = ioremap_nocache(
2610 pci_resource_start(adapter->pdev, pcicfg_reg),
2611 pci_resource_len(adapter->pdev, pcicfg_reg));
2614 adapter->pcicfg = addr;
2616 adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
2620 be_unmap_pci_bars(adapter);
2625 static void be_ctrl_cleanup(struct be_adapter *adapter)
2627 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2629 be_unmap_pci_bars(adapter);
2632 pci_free_consistent(adapter->pdev, mem->size,
2635 mem = &adapter->mc_cmd_mem;
2637 pci_free_consistent(adapter->pdev, mem->size,
2641 static int be_ctrl_init(struct be_adapter *adapter)
2643 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2644 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2645 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2648 status = be_map_pci_bars(adapter);
2652 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2653 mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2654 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2655 if (!mbox_mem_alloc->va) {
2657 goto unmap_pci_bars;
2660 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2661 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2662 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2663 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2665 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2666 mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2668 if (mc_cmd_mem->va == NULL) {
2672 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2674 spin_lock_init(&adapter->mbox_lock);
2675 spin_lock_init(&adapter->mcc_lock);
2676 spin_lock_init(&adapter->mcc_cq_lock);
2678 init_completion(&adapter->flash_compl);
2679 pci_save_state(adapter->pdev);
2683 pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2684 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2687 be_unmap_pci_bars(adapter);
2693 static void be_stats_cleanup(struct be_adapter *adapter)
2695 struct be_dma_mem *cmd = &adapter->stats_cmd;
2698 pci_free_consistent(adapter->pdev, cmd->size,
2702 static int be_stats_init(struct be_adapter *adapter)
2704 struct be_dma_mem *cmd = &adapter->stats_cmd;
2706 cmd->size = sizeof(struct be_cmd_req_get_stats);
2707 cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2708 if (cmd->va == NULL)
2710 memset(cmd->va, 0, cmd->size);
2714 static void __devexit be_remove(struct pci_dev *pdev)
2716 struct be_adapter *adapter = pci_get_drvdata(pdev);
2721 cancel_delayed_work_sync(&adapter->work);
2723 unregister_netdev(adapter->netdev);
2727 be_stats_cleanup(adapter);
2729 be_ctrl_cleanup(adapter);
2731 be_sriov_disable(adapter);
2733 be_msix_disable(adapter);
2735 pci_set_drvdata(pdev, NULL);
2736 pci_release_regions(pdev);
2737 pci_disable_device(pdev);
2739 free_netdev(adapter->netdev);
2742 static int be_get_config(struct be_adapter *adapter)
2747 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2751 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
2752 &adapter->function_mode, &adapter->function_caps);
2756 memset(mac, 0, ETH_ALEN);
2758 if (be_physfn(adapter)) {
2759 status = be_cmd_mac_addr_query(adapter, mac,
2760 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2765 if (!is_valid_ether_addr(mac))
2766 return -EADDRNOTAVAIL;
2768 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2769 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2772 if (adapter->function_mode & 0x400)
2773 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
2775 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2780 static int __devinit be_probe(struct pci_dev *pdev,
2781 const struct pci_device_id *pdev_id)
2784 struct be_adapter *adapter;
2785 struct net_device *netdev;
2787 status = pci_enable_device(pdev);
2791 status = pci_request_regions(pdev, DRV_NAME);
2794 pci_set_master(pdev);
2796 netdev = alloc_etherdev(sizeof(struct be_adapter));
2797 if (netdev == NULL) {
2801 adapter = netdev_priv(netdev);
2803 switch (pdev->device) {
2806 adapter->generation = BE_GEN2;
2810 adapter->generation = BE_GEN3;
2813 adapter->generation = 0;
2816 adapter->pdev = pdev;
2817 pci_set_drvdata(pdev, adapter);
2818 adapter->netdev = netdev;
2819 SET_NETDEV_DEV(netdev, &pdev->dev);
2821 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2823 netdev->features |= NETIF_F_HIGHDMA;
2825 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2827 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2832 be_sriov_enable(adapter);
2834 status = be_ctrl_init(adapter);
2838 /* sync up with fw's ready state */
2839 if (be_physfn(adapter)) {
2840 status = be_cmd_POST(adapter);
2845 /* tell fw we're ready to fire cmds */
2846 status = be_cmd_fw_init(adapter);
2850 if (be_physfn(adapter)) {
2851 status = be_cmd_reset_function(adapter);
2856 status = be_stats_init(adapter);
2860 status = be_get_config(adapter);
2864 be_msix_enable(adapter);
2866 INIT_DELAYED_WORK(&adapter->work, be_worker);
2868 status = be_setup(adapter);
2872 be_netdev_init(netdev);
2873 status = register_netdev(netdev);
2876 netif_carrier_off(netdev);
2878 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2879 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
2885 be_msix_disable(adapter);
2887 be_stats_cleanup(adapter);
2889 be_ctrl_cleanup(adapter);
2891 be_sriov_disable(adapter);
2892 free_netdev(adapter->netdev);
2893 pci_set_drvdata(pdev, NULL);
2895 pci_release_regions(pdev);
2897 pci_disable_device(pdev);
2899 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2903 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2905 struct be_adapter *adapter = pci_get_drvdata(pdev);
2906 struct net_device *netdev = adapter->netdev;
2909 be_setup_wol(adapter, true);
2911 netif_device_detach(netdev);
2912 if (netif_running(netdev)) {
2917 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2920 pci_save_state(pdev);
2921 pci_disable_device(pdev);
2922 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2926 static int be_resume(struct pci_dev *pdev)
2929 struct be_adapter *adapter = pci_get_drvdata(pdev);
2930 struct net_device *netdev = adapter->netdev;
2932 netif_device_detach(netdev);
2934 status = pci_enable_device(pdev);
2938 pci_set_power_state(pdev, 0);
2939 pci_restore_state(pdev);
2941 /* tell fw we're ready to fire cmds */
2942 status = be_cmd_fw_init(adapter);
2947 if (netif_running(netdev)) {
2952 netif_device_attach(netdev);
2955 be_setup_wol(adapter, false);
2960 * An FLR will stop BE from DMAing any data.
2962 static void be_shutdown(struct pci_dev *pdev)
2964 struct be_adapter *adapter = pci_get_drvdata(pdev);
2965 struct net_device *netdev = adapter->netdev;
2967 netif_device_detach(netdev);
2969 be_cmd_reset_function(adapter);
2972 be_setup_wol(adapter, true);
2974 pci_disable_device(pdev);
2977 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
2978 pci_channel_state_t state)
2980 struct be_adapter *adapter = pci_get_drvdata(pdev);
2981 struct net_device *netdev = adapter->netdev;
2983 dev_err(&adapter->pdev->dev, "EEH error detected\n");
2985 adapter->eeh_err = true;
2987 netif_device_detach(netdev);
2989 if (netif_running(netdev)) {
2996 if (state == pci_channel_io_perm_failure)
2997 return PCI_ERS_RESULT_DISCONNECT;
2999 pci_disable_device(pdev);
3001 return PCI_ERS_RESULT_NEED_RESET;
3004 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
3006 struct be_adapter *adapter = pci_get_drvdata(pdev);
3009 dev_info(&adapter->pdev->dev, "EEH reset\n");
3010 adapter->eeh_err = false;
3012 status = pci_enable_device(pdev);
3014 return PCI_ERS_RESULT_DISCONNECT;
3016 pci_set_master(pdev);
3017 pci_set_power_state(pdev, 0);
3018 pci_restore_state(pdev);
3020 /* Check if card is ok and fw is ready */
3021 status = be_cmd_POST(adapter);
3023 return PCI_ERS_RESULT_DISCONNECT;
3025 return PCI_ERS_RESULT_RECOVERED;
3028 static void be_eeh_resume(struct pci_dev *pdev)
3031 struct be_adapter *adapter = pci_get_drvdata(pdev);
3032 struct net_device *netdev = adapter->netdev;
3034 dev_info(&adapter->pdev->dev, "EEH resume\n");
3036 pci_save_state(pdev);
3038 /* tell fw we're ready to fire cmds */
3039 status = be_cmd_fw_init(adapter);
3043 status = be_setup(adapter);
3047 if (netif_running(netdev)) {
3048 status = be_open(netdev);
3052 netif_device_attach(netdev);
3055 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
3058 static struct pci_error_handlers be_eeh_handlers = {
3059 .error_detected = be_eeh_err_detected,
3060 .slot_reset = be_eeh_reset,
3061 .resume = be_eeh_resume,
3064 static struct pci_driver be_driver = {
3066 .id_table = be_dev_ids,
3068 .remove = be_remove,
3069 .suspend = be_suspend,
3070 .resume = be_resume,
3071 .shutdown = be_shutdown,
3072 .err_handler = &be_eeh_handlers
3075 static int __init be_init_module(void)
3077 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
3078 rx_frag_size != 2048) {
3079 printk(KERN_WARNING DRV_NAME
3080 " : Module param rx_frag_size must be 2048/4096/8192."
3082 rx_frag_size = 2048;
3086 printk(KERN_WARNING DRV_NAME
3087 " : Module param num_vfs must not be greater than 32."
3092 return pci_register_driver(&be_driver);
3094 module_init(be_init_module);
3096 static void __exit be_exit_module(void)
3098 pci_unregister_driver(&be_driver);
3100 module_exit(be_exit_module);