2 * Copyright (C) 2005 - 2009 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 module_param(rx_frag_size, uint, S_IRUGO);
30 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
32 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
33 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
34 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
35 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
36 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
39 MODULE_DEVICE_TABLE(pci, be_dev_ids);
41 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
43 struct be_dma_mem *mem = &q->dma_mem;
45 pci_free_consistent(adapter->pdev, mem->size,
49 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
50 u16 len, u16 entry_size)
52 struct be_dma_mem *mem = &q->dma_mem;
54 memset(q, 0, sizeof(*q));
56 q->entry_size = entry_size;
57 mem->size = len * entry_size;
58 mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
61 memset(mem->va, 0, mem->size);
65 static void be_intr_set(struct be_adapter *adapter, bool enable)
67 u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
68 u32 reg = ioread32(addr);
69 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
71 if (!enabled && enable)
72 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
73 else if (enabled && !enable)
74 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
81 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
84 val |= qid & DB_RQ_RING_ID_MASK;
85 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
86 iowrite32(val, adapter->db + DB_RQ_OFFSET);
89 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
92 val |= qid & DB_TXULP_RING_ID_MASK;
93 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
94 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
97 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
98 bool arm, bool clear_int, u16 num_popped)
101 val |= qid & DB_EQ_RING_ID_MASK;
103 val |= 1 << DB_EQ_REARM_SHIFT;
105 val |= 1 << DB_EQ_CLR_SHIFT;
106 val |= 1 << DB_EQ_EVNT_SHIFT;
107 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
108 iowrite32(val, adapter->db + DB_EQ_OFFSET);
111 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
114 val |= qid & DB_CQ_RING_ID_MASK;
116 val |= 1 << DB_CQ_REARM_SHIFT;
117 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
118 iowrite32(val, adapter->db + DB_CQ_OFFSET);
121 static int be_mac_addr_set(struct net_device *netdev, void *p)
123 struct be_adapter *adapter = netdev_priv(netdev);
124 struct sockaddr *addr = p;
127 if (!is_valid_ether_addr(addr->sa_data))
128 return -EADDRNOTAVAIL;
130 status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
134 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
135 adapter->if_handle, &adapter->pmac_id);
137 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
142 void netdev_stats_update(struct be_adapter *adapter)
144 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
145 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
146 struct be_port_rxf_stats *port_stats =
147 &rxf_stats->port[adapter->port_num];
148 struct net_device_stats *dev_stats = &adapter->netdev->stats;
149 struct be_erx_stats *erx_stats = &hw_stats->erx;
151 dev_stats->rx_packets = port_stats->rx_total_frames;
152 dev_stats->tx_packets = port_stats->tx_unicastframes +
153 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
154 dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
155 (u64) port_stats->rx_bytes_lsd;
156 dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
157 (u64) port_stats->tx_bytes_lsd;
159 /* bad pkts received */
160 dev_stats->rx_errors = port_stats->rx_crc_errors +
161 port_stats->rx_alignment_symbol_errors +
162 port_stats->rx_in_range_errors +
163 port_stats->rx_out_range_errors +
164 port_stats->rx_frame_too_long +
165 port_stats->rx_dropped_too_small +
166 port_stats->rx_dropped_too_short +
167 port_stats->rx_dropped_header_too_small +
168 port_stats->rx_dropped_tcp_length +
169 port_stats->rx_dropped_runt +
170 port_stats->rx_tcp_checksum_errs +
171 port_stats->rx_ip_checksum_errs +
172 port_stats->rx_udp_checksum_errs;
174 /* no space in linux buffers: best possible approximation */
175 dev_stats->rx_dropped =
176 erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id];
178 /* detailed rx errors */
179 dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
180 port_stats->rx_out_range_errors +
181 port_stats->rx_frame_too_long;
183 /* receive ring buffer overflow */
184 dev_stats->rx_over_errors = 0;
186 dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
188 /* frame alignment errors */
189 dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
191 /* receiver fifo overrun */
192 /* drops_no_pbuf is no per i/f, it's per BE card */
193 dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
194 port_stats->rx_input_fifo_overflow +
195 rxf_stats->rx_drops_no_pbuf;
196 /* receiver missed packetd */
197 dev_stats->rx_missed_errors = 0;
199 /* packet transmit problems */
200 dev_stats->tx_errors = 0;
202 /* no space available in linux */
203 dev_stats->tx_dropped = 0;
205 dev_stats->multicast = port_stats->rx_multicast_frames;
206 dev_stats->collisions = 0;
208 /* detailed tx_errors */
209 dev_stats->tx_aborted_errors = 0;
210 dev_stats->tx_carrier_errors = 0;
211 dev_stats->tx_fifo_errors = 0;
212 dev_stats->tx_heartbeat_errors = 0;
213 dev_stats->tx_window_errors = 0;
216 void be_link_status_update(struct be_adapter *adapter, bool link_up)
218 struct net_device *netdev = adapter->netdev;
220 /* If link came up or went down */
221 if (adapter->link_up != link_up) {
222 adapter->link_speed = -1;
224 netif_start_queue(netdev);
225 netif_carrier_on(netdev);
226 printk(KERN_INFO "%s: Link up\n", netdev->name);
228 netif_stop_queue(netdev);
229 netif_carrier_off(netdev);
230 printk(KERN_INFO "%s: Link down\n", netdev->name);
232 adapter->link_up = link_up;
236 /* Update the EQ delay n BE based on the RX frags consumed / sec */
237 static void be_rx_eqd_update(struct be_adapter *adapter)
239 struct be_eq_obj *rx_eq = &adapter->rx_eq;
240 struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
244 if (!rx_eq->enable_aic)
248 if (time_before(now, stats->rx_fps_jiffies)) {
249 stats->rx_fps_jiffies = now;
253 /* Update once a second */
254 if ((now - stats->rx_fps_jiffies) < HZ)
257 stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
258 ((now - stats->rx_fps_jiffies) / HZ);
260 stats->rx_fps_jiffies = now;
261 stats->be_prev_rx_frags = stats->be_rx_frags;
262 eqd = stats->be_rx_fps / 110000;
264 if (eqd > rx_eq->max_eqd)
265 eqd = rx_eq->max_eqd;
266 if (eqd < rx_eq->min_eqd)
267 eqd = rx_eq->min_eqd;
270 if (eqd != rx_eq->cur_eqd)
271 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
273 rx_eq->cur_eqd = eqd;
276 static struct net_device_stats *be_get_stats(struct net_device *dev)
281 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
285 do_div(rate, ticks / HZ);
286 rate <<= 3; /* bytes/sec -> bits/sec */
287 do_div(rate, 1000000ul); /* MB/Sec */
292 static void be_tx_rate_update(struct be_adapter *adapter)
294 struct be_drvr_stats *stats = drvr_stats(adapter);
297 /* Wrapped around? */
298 if (time_before(now, stats->be_tx_jiffies)) {
299 stats->be_tx_jiffies = now;
303 /* Update tx rate once in two seconds */
304 if ((now - stats->be_tx_jiffies) > 2 * HZ) {
305 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
306 - stats->be_tx_bytes_prev,
307 now - stats->be_tx_jiffies);
308 stats->be_tx_jiffies = now;
309 stats->be_tx_bytes_prev = stats->be_tx_bytes;
313 static void be_tx_stats_update(struct be_adapter *adapter,
314 u32 wrb_cnt, u32 copied, bool stopped)
316 struct be_drvr_stats *stats = drvr_stats(adapter);
318 stats->be_tx_wrbs += wrb_cnt;
319 stats->be_tx_bytes += copied;
321 stats->be_tx_stops++;
324 /* Determine number of WRB entries needed to xmit data in an skb */
325 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
327 int cnt = (skb->len > skb->data_len);
329 cnt += skb_shinfo(skb)->nr_frags;
331 /* to account for hdr wrb */
334 /* add a dummy to make it an even num */
339 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
343 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
345 wrb->frag_pa_hi = upper_32_bits(addr);
346 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
347 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
350 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
351 bool vlan, u32 wrb_cnt, u32 len)
353 memset(hdr, 0, sizeof(*hdr));
355 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
357 if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
358 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
359 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
360 hdr, skb_shinfo(skb)->gso_size);
361 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
363 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
364 else if (is_udp_pkt(skb))
365 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
368 if (vlan && vlan_tx_tag_present(skb)) {
369 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
370 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
371 hdr, vlan_tx_tag_get(skb));
374 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
375 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
376 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
377 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
381 static int make_tx_wrbs(struct be_adapter *adapter,
382 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
386 struct pci_dev *pdev = adapter->pdev;
387 struct sk_buff *first_skb = skb;
388 struct be_queue_info *txq = &adapter->tx_obj.q;
389 struct be_eth_wrb *wrb;
390 struct be_eth_hdr_wrb *hdr;
392 hdr = queue_head_node(txq);
393 atomic_add(wrb_cnt, &txq->used);
396 if (skb->len > skb->data_len) {
397 int len = skb->len - skb->data_len;
398 busaddr = pci_map_single(pdev, skb->data, len,
400 wrb = queue_head_node(txq);
401 wrb_fill(wrb, busaddr, len);
402 be_dws_cpu_to_le(wrb, sizeof(*wrb));
407 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
408 struct skb_frag_struct *frag =
409 &skb_shinfo(skb)->frags[i];
410 busaddr = pci_map_page(pdev, frag->page,
412 frag->size, PCI_DMA_TODEVICE);
413 wrb = queue_head_node(txq);
414 wrb_fill(wrb, busaddr, frag->size);
415 be_dws_cpu_to_le(wrb, sizeof(*wrb));
417 copied += frag->size;
421 wrb = queue_head_node(txq);
423 be_dws_cpu_to_le(wrb, sizeof(*wrb));
427 wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
429 be_dws_cpu_to_le(hdr, sizeof(*hdr));
434 static netdev_tx_t be_xmit(struct sk_buff *skb,
435 struct net_device *netdev)
437 struct be_adapter *adapter = netdev_priv(netdev);
438 struct be_tx_obj *tx_obj = &adapter->tx_obj;
439 struct be_queue_info *txq = &tx_obj->q;
440 u32 wrb_cnt = 0, copied = 0;
441 u32 start = txq->head;
442 bool dummy_wrb, stopped = false;
444 wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
446 copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
448 /* record the sent skb in the sent_skb table */
449 BUG_ON(tx_obj->sent_skb_list[start]);
450 tx_obj->sent_skb_list[start] = skb;
452 /* Ensure txq has space for the next skb; Else stop the queue
453 * *BEFORE* ringing the tx doorbell, so that we serialze the
454 * tx compls of the current transmit which'll wake up the queue
456 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
458 netif_stop_queue(netdev);
462 be_txq_notify(adapter, txq->id, wrb_cnt);
464 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
467 dev_kfree_skb_any(skb);
472 static int be_change_mtu(struct net_device *netdev, int new_mtu)
474 struct be_adapter *adapter = netdev_priv(netdev);
475 if (new_mtu < BE_MIN_MTU ||
476 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
477 (ETH_HLEN + ETH_FCS_LEN))) {
478 dev_info(&adapter->pdev->dev,
479 "MTU must be between %d and %d bytes\n",
481 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
484 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
485 netdev->mtu, new_mtu);
486 netdev->mtu = new_mtu;
491 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
492 * If the user configures more, place BE in vlan promiscuous mode.
494 static int be_vid_config(struct be_adapter *adapter)
496 u16 vtag[BE_NUM_VLANS_SUPPORTED];
500 if (adapter->vlans_added <= adapter->max_vlans) {
501 /* Construct VLAN Table to give to HW */
502 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
503 if (adapter->vlan_tag[i]) {
504 vtag[ntags] = cpu_to_le16(i);
508 status = be_cmd_vlan_config(adapter, adapter->if_handle,
511 status = be_cmd_vlan_config(adapter, adapter->if_handle,
517 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
519 struct be_adapter *adapter = netdev_priv(netdev);
520 struct be_eq_obj *rx_eq = &adapter->rx_eq;
521 struct be_eq_obj *tx_eq = &adapter->tx_eq;
523 be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
524 be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
525 adapter->vlan_grp = grp;
526 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
527 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
530 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
532 struct be_adapter *adapter = netdev_priv(netdev);
534 adapter->vlan_tag[vid] = 1;
535 adapter->vlans_added++;
536 if (adapter->vlans_added <= (adapter->max_vlans + 1))
537 be_vid_config(adapter);
540 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
542 struct be_adapter *adapter = netdev_priv(netdev);
544 adapter->vlan_tag[vid] = 0;
545 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
546 adapter->vlans_added--;
547 if (adapter->vlans_added <= adapter->max_vlans)
548 be_vid_config(adapter);
551 static void be_set_multicast_list(struct net_device *netdev)
553 struct be_adapter *adapter = netdev_priv(netdev);
555 if (netdev->flags & IFF_PROMISC) {
556 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
557 adapter->promiscuous = true;
561 /* BE was previously in promiscous mode; disable it */
562 if (adapter->promiscuous) {
563 adapter->promiscuous = false;
564 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
567 /* Enable multicast promisc if num configured exceeds what we support */
568 if (netdev->flags & IFF_ALLMULTI ||
569 netdev_mc_count(netdev) > BE_MAX_MC) {
570 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0,
571 &adapter->mc_cmd_mem);
575 be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
576 netdev_mc_count(netdev), &adapter->mc_cmd_mem);
581 static void be_rx_rate_update(struct be_adapter *adapter)
583 struct be_drvr_stats *stats = drvr_stats(adapter);
587 if (time_before(now, stats->be_rx_jiffies)) {
588 stats->be_rx_jiffies = now;
592 /* Update the rate once in two seconds */
593 if ((now - stats->be_rx_jiffies) < 2 * HZ)
596 stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
597 - stats->be_rx_bytes_prev,
598 now - stats->be_rx_jiffies);
599 stats->be_rx_jiffies = now;
600 stats->be_rx_bytes_prev = stats->be_rx_bytes;
603 static void be_rx_stats_update(struct be_adapter *adapter,
604 u32 pktsize, u16 numfrags)
606 struct be_drvr_stats *stats = drvr_stats(adapter);
608 stats->be_rx_compl++;
609 stats->be_rx_frags += numfrags;
610 stats->be_rx_bytes += pktsize;
613 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
615 u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
617 l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
618 ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
619 ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
621 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
622 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
624 ipv6_chk = (ip_version && (tcpf || udpf));
626 return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
629 static struct be_rx_page_info *
630 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
632 struct be_rx_page_info *rx_page_info;
633 struct be_queue_info *rxq = &adapter->rx_obj.q;
635 rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
636 BUG_ON(!rx_page_info->page);
638 if (rx_page_info->last_page_user) {
639 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
640 adapter->big_page_size, PCI_DMA_FROMDEVICE);
641 rx_page_info->last_page_user = false;
644 atomic_dec(&rxq->used);
648 /* Throwaway the data in the Rx completion */
649 static void be_rx_compl_discard(struct be_adapter *adapter,
650 struct be_eth_rx_compl *rxcp)
652 struct be_queue_info *rxq = &adapter->rx_obj.q;
653 struct be_rx_page_info *page_info;
654 u16 rxq_idx, i, num_rcvd;
656 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
657 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
659 for (i = 0; i < num_rcvd; i++) {
660 page_info = get_rx_page_info(adapter, rxq_idx);
661 put_page(page_info->page);
662 memset(page_info, 0, sizeof(*page_info));
663 index_inc(&rxq_idx, rxq->len);
668 * skb_fill_rx_data forms a complete skb for an ether frame
671 static void skb_fill_rx_data(struct be_adapter *adapter,
672 struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
674 struct be_queue_info *rxq = &adapter->rx_obj.q;
675 struct be_rx_page_info *page_info;
676 u16 rxq_idx, i, num_rcvd, j;
677 u32 pktsize, hdr_len, curr_frag_len, size;
680 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
681 pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
682 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
684 page_info = get_rx_page_info(adapter, rxq_idx);
686 start = page_address(page_info->page) + page_info->page_offset;
689 /* Copy data in the first descriptor of this completion */
690 curr_frag_len = min(pktsize, rx_frag_size);
692 /* Copy the header portion into skb_data */
693 hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
694 memcpy(skb->data, start, hdr_len);
695 skb->len = curr_frag_len;
696 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
697 /* Complete packet has now been moved to data */
698 put_page(page_info->page);
700 skb->tail += curr_frag_len;
702 skb_shinfo(skb)->nr_frags = 1;
703 skb_shinfo(skb)->frags[0].page = page_info->page;
704 skb_shinfo(skb)->frags[0].page_offset =
705 page_info->page_offset + hdr_len;
706 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
707 skb->data_len = curr_frag_len - hdr_len;
708 skb->tail += hdr_len;
710 page_info->page = NULL;
712 if (pktsize <= rx_frag_size) {
713 BUG_ON(num_rcvd != 1);
717 /* More frags present for this completion */
719 for (i = 1, j = 0; i < num_rcvd; i++) {
720 size -= curr_frag_len;
721 index_inc(&rxq_idx, rxq->len);
722 page_info = get_rx_page_info(adapter, rxq_idx);
724 curr_frag_len = min(size, rx_frag_size);
726 /* Coalesce all frags from the same physical page in one slot */
727 if (page_info->page_offset == 0) {
730 skb_shinfo(skb)->frags[j].page = page_info->page;
731 skb_shinfo(skb)->frags[j].page_offset =
732 page_info->page_offset;
733 skb_shinfo(skb)->frags[j].size = 0;
734 skb_shinfo(skb)->nr_frags++;
736 put_page(page_info->page);
739 skb_shinfo(skb)->frags[j].size += curr_frag_len;
740 skb->len += curr_frag_len;
741 skb->data_len += curr_frag_len;
743 page_info->page = NULL;
745 BUG_ON(j > MAX_SKB_FRAGS);
748 be_rx_stats_update(adapter, pktsize, num_rcvd);
752 /* Process the RX completion indicated by rxcp when GRO is disabled */
753 static void be_rx_compl_process(struct be_adapter *adapter,
754 struct be_eth_rx_compl *rxcp)
760 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
761 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
763 /* vlanf could be wrongly set in some cards.
764 * ignore if vtm is not set */
765 if ((adapter->cap & 0x400) && !vtm)
768 skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
771 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
772 be_rx_compl_discard(adapter, rxcp);
776 skb_fill_rx_data(adapter, skb, rxcp);
778 if (do_pkt_csum(rxcp, adapter->rx_csum))
779 skb->ip_summed = CHECKSUM_NONE;
781 skb->ip_summed = CHECKSUM_UNNECESSARY;
783 skb->truesize = skb->len + sizeof(struct sk_buff);
784 skb->protocol = eth_type_trans(skb, adapter->netdev);
785 skb->dev = adapter->netdev;
788 if (!adapter->vlan_grp || adapter->vlans_added == 0) {
792 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
793 vid = be16_to_cpu(vid);
794 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
796 netif_receive_skb(skb);
802 /* Process the RX completion indicated by rxcp when GRO is enabled */
803 static void be_rx_compl_process_gro(struct be_adapter *adapter,
804 struct be_eth_rx_compl *rxcp)
806 struct be_rx_page_info *page_info;
807 struct sk_buff *skb = NULL;
808 struct be_queue_info *rxq = &adapter->rx_obj.q;
809 struct be_eq_obj *eq_obj = &adapter->rx_eq;
810 u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
811 u16 i, rxq_idx = 0, vid, j;
814 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
815 pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
816 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
817 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
818 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
820 /* vlanf could be wrongly set in some cards.
821 * ignore if vtm is not set */
822 if ((adapter->cap & 0x400) && !vtm)
825 skb = napi_get_frags(&eq_obj->napi);
827 be_rx_compl_discard(adapter, rxcp);
831 remaining = pkt_size;
832 for (i = 0, j = -1; i < num_rcvd; i++) {
833 page_info = get_rx_page_info(adapter, rxq_idx);
835 curr_frag_len = min(remaining, rx_frag_size);
837 /* Coalesce all frags from the same physical page in one slot */
838 if (i == 0 || page_info->page_offset == 0) {
839 /* First frag or Fresh page */
841 skb_shinfo(skb)->frags[j].page = page_info->page;
842 skb_shinfo(skb)->frags[j].page_offset =
843 page_info->page_offset;
844 skb_shinfo(skb)->frags[j].size = 0;
846 put_page(page_info->page);
848 skb_shinfo(skb)->frags[j].size += curr_frag_len;
850 remaining -= curr_frag_len;
851 index_inc(&rxq_idx, rxq->len);
852 memset(page_info, 0, sizeof(*page_info));
854 BUG_ON(j > MAX_SKB_FRAGS);
856 skb_shinfo(skb)->nr_frags = j + 1;
858 skb->data_len = pkt_size;
859 skb->truesize += pkt_size;
860 skb->ip_summed = CHECKSUM_UNNECESSARY;
862 if (likely(!vlanf)) {
863 napi_gro_frags(&eq_obj->napi);
865 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
866 vid = be16_to_cpu(vid);
868 if (!adapter->vlan_grp || adapter->vlans_added == 0)
871 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
874 be_rx_stats_update(adapter, pkt_size, num_rcvd);
878 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
880 struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
882 if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
885 be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
887 queue_tail_inc(&adapter->rx_obj.cq);
891 /* To reset the valid bit, we need to reset the whole word as
892 * when walking the queue the valid entries are little-endian
893 * and invalid entries are host endian
895 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
897 rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
900 static inline struct page *be_alloc_pages(u32 size)
902 gfp_t alloc_flags = GFP_ATOMIC;
903 u32 order = get_order(size);
905 alloc_flags |= __GFP_COMP;
906 return alloc_pages(alloc_flags, order);
910 * Allocate a page, split it to fragments of size rx_frag_size and post as
911 * receive buffers to BE
913 static void be_post_rx_frags(struct be_adapter *adapter)
915 struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
916 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
917 struct be_queue_info *rxq = &adapter->rx_obj.q;
918 struct page *pagep = NULL;
919 struct be_eth_rx_d *rxd;
920 u64 page_dmaaddr = 0, frag_dmaaddr;
921 u32 posted, page_offset = 0;
923 page_info = &page_info_tbl[rxq->head];
924 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
926 pagep = be_alloc_pages(adapter->big_page_size);
927 if (unlikely(!pagep)) {
928 drvr_stats(adapter)->be_ethrx_post_fail++;
931 page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
932 adapter->big_page_size,
934 page_info->page_offset = 0;
937 page_info->page_offset = page_offset + rx_frag_size;
939 page_offset = page_info->page_offset;
940 page_info->page = pagep;
941 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
942 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
944 rxd = queue_head_node(rxq);
945 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
946 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
948 /* Any space left in the current big page for another frag? */
949 if ((page_offset + rx_frag_size + rx_frag_size) >
950 adapter->big_page_size) {
952 page_info->last_page_user = true;
955 prev_page_info = page_info;
957 page_info = &page_info_tbl[rxq->head];
960 prev_page_info->last_page_user = true;
963 atomic_add(posted, &rxq->used);
964 be_rxq_notify(adapter, rxq->id, posted);
965 } else if (atomic_read(&rxq->used) == 0) {
966 /* Let be_worker replenish when memory is available */
967 adapter->rx_post_starved = true;
973 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
975 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
977 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
980 be_dws_le_to_cpu(txcp, sizeof(*txcp));
982 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
984 queue_tail_inc(tx_cq);
988 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
990 struct be_queue_info *txq = &adapter->tx_obj.q;
991 struct be_eth_wrb *wrb;
992 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
993 struct sk_buff *sent_skb;
995 u16 cur_index, num_wrbs = 0;
997 cur_index = txq->tail;
998 sent_skb = sent_skbs[cur_index];
1000 sent_skbs[cur_index] = NULL;
1001 wrb = queue_tail_node(txq);
1002 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1003 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1005 pci_unmap_single(adapter->pdev, busaddr,
1006 wrb->frag_len, PCI_DMA_TODEVICE);
1009 queue_tail_inc(txq);
1011 while (cur_index != last_index) {
1012 cur_index = txq->tail;
1013 wrb = queue_tail_node(txq);
1014 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1015 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1017 pci_unmap_page(adapter->pdev, busaddr,
1018 wrb->frag_len, PCI_DMA_TODEVICE);
1021 queue_tail_inc(txq);
1024 atomic_sub(num_wrbs, &txq->used);
1026 kfree_skb(sent_skb);
1029 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1031 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1036 eqe->evt = le32_to_cpu(eqe->evt);
1037 queue_tail_inc(&eq_obj->q);
1041 static int event_handle(struct be_adapter *adapter,
1042 struct be_eq_obj *eq_obj)
1044 struct be_eq_entry *eqe;
1047 while ((eqe = event_get(eq_obj)) != NULL) {
1052 /* Deal with any spurious interrupts that come
1055 be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1057 napi_schedule(&eq_obj->napi);
1062 /* Just read and notify events without processing them.
1063 * Used at the time of destroying event queues */
1064 static void be_eq_clean(struct be_adapter *adapter,
1065 struct be_eq_obj *eq_obj)
1067 struct be_eq_entry *eqe;
1070 while ((eqe = event_get(eq_obj)) != NULL) {
1076 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1079 static void be_rx_q_clean(struct be_adapter *adapter)
1081 struct be_rx_page_info *page_info;
1082 struct be_queue_info *rxq = &adapter->rx_obj.q;
1083 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1084 struct be_eth_rx_compl *rxcp;
1087 /* First cleanup pending rx completions */
1088 while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1089 be_rx_compl_discard(adapter, rxcp);
1090 be_rx_compl_reset(rxcp);
1091 be_cq_notify(adapter, rx_cq->id, true, 1);
1094 /* Then free posted rx buffer that were not used */
1095 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1096 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1097 page_info = get_rx_page_info(adapter, tail);
1098 put_page(page_info->page);
1099 memset(page_info, 0, sizeof(*page_info));
1101 BUG_ON(atomic_read(&rxq->used));
1104 static void be_tx_compl_clean(struct be_adapter *adapter)
1106 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1107 struct be_queue_info *txq = &adapter->tx_obj.q;
1108 struct be_eth_tx_compl *txcp;
1109 u16 end_idx, cmpl = 0, timeo = 0;
1111 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1113 while ((txcp = be_tx_compl_get(tx_cq))) {
1114 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1116 be_tx_compl_process(adapter, end_idx);
1120 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1124 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1130 if (atomic_read(&txq->used))
1131 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1132 atomic_read(&txq->used));
1135 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1137 struct be_queue_info *q;
1139 q = &adapter->mcc_obj.q;
1141 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1142 be_queue_free(adapter, q);
1144 q = &adapter->mcc_obj.cq;
1146 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1147 be_queue_free(adapter, q);
1150 /* Must be called only after TX qs are created as MCC shares TX EQ */
1151 static int be_mcc_queues_create(struct be_adapter *adapter)
1153 struct be_queue_info *q, *cq;
1155 /* Alloc MCC compl queue */
1156 cq = &adapter->mcc_obj.cq;
1157 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1158 sizeof(struct be_mcc_compl)))
1161 /* Ask BE to create MCC compl queue; share TX's eq */
1162 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1165 /* Alloc MCC queue */
1166 q = &adapter->mcc_obj.q;
1167 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1168 goto mcc_cq_destroy;
1170 /* Ask BE to create MCC queue */
1171 if (be_cmd_mccq_create(adapter, q, cq))
1177 be_queue_free(adapter, q);
1179 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1181 be_queue_free(adapter, cq);
1186 static void be_tx_queues_destroy(struct be_adapter *adapter)
1188 struct be_queue_info *q;
1190 q = &adapter->tx_obj.q;
1192 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1193 be_queue_free(adapter, q);
1195 q = &adapter->tx_obj.cq;
1197 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1198 be_queue_free(adapter, q);
1200 /* Clear any residual events */
1201 be_eq_clean(adapter, &adapter->tx_eq);
1203 q = &adapter->tx_eq.q;
1205 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1206 be_queue_free(adapter, q);
1209 static int be_tx_queues_create(struct be_adapter *adapter)
1211 struct be_queue_info *eq, *q, *cq;
1213 adapter->tx_eq.max_eqd = 0;
1214 adapter->tx_eq.min_eqd = 0;
1215 adapter->tx_eq.cur_eqd = 96;
1216 adapter->tx_eq.enable_aic = false;
1217 /* Alloc Tx Event queue */
1218 eq = &adapter->tx_eq.q;
1219 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1222 /* Ask BE to create Tx Event queue */
1223 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1225 /* Alloc TX eth compl queue */
1226 cq = &adapter->tx_obj.cq;
1227 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1228 sizeof(struct be_eth_tx_compl)))
1231 /* Ask BE to create Tx eth compl queue */
1232 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1235 /* Alloc TX eth queue */
1236 q = &adapter->tx_obj.q;
1237 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1240 /* Ask BE to create Tx eth queue */
1241 if (be_cmd_txq_create(adapter, q, cq))
1246 be_queue_free(adapter, q);
1248 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1250 be_queue_free(adapter, cq);
1252 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1254 be_queue_free(adapter, eq);
1258 static void be_rx_queues_destroy(struct be_adapter *adapter)
1260 struct be_queue_info *q;
1262 q = &adapter->rx_obj.q;
1264 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1265 be_rx_q_clean(adapter);
1267 be_queue_free(adapter, q);
1269 q = &adapter->rx_obj.cq;
1271 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1272 be_queue_free(adapter, q);
1274 /* Clear any residual events */
1275 be_eq_clean(adapter, &adapter->rx_eq);
1277 q = &adapter->rx_eq.q;
1279 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1280 be_queue_free(adapter, q);
1283 static int be_rx_queues_create(struct be_adapter *adapter)
1285 struct be_queue_info *eq, *q, *cq;
1288 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1289 adapter->rx_eq.max_eqd = BE_MAX_EQD;
1290 adapter->rx_eq.min_eqd = 0;
1291 adapter->rx_eq.cur_eqd = 0;
1292 adapter->rx_eq.enable_aic = true;
1294 /* Alloc Rx Event queue */
1295 eq = &adapter->rx_eq.q;
1296 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1297 sizeof(struct be_eq_entry));
1301 /* Ask BE to create Rx Event queue */
1302 rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1306 /* Alloc RX eth compl queue */
1307 cq = &adapter->rx_obj.cq;
1308 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1309 sizeof(struct be_eth_rx_compl));
1313 /* Ask BE to create Rx eth compl queue */
1314 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1318 /* Alloc RX eth queue */
1319 q = &adapter->rx_obj.q;
1320 rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1324 /* Ask BE to create Rx eth queue */
1325 rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1326 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1332 be_queue_free(adapter, q);
1334 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1336 be_queue_free(adapter, cq);
1338 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1340 be_queue_free(adapter, eq);
1344 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1345 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1347 return eq_id - 8 * be_pci_func(adapter);
1350 static irqreturn_t be_intx(int irq, void *dev)
1352 struct be_adapter *adapter = dev;
1355 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1356 (adapter->tx_eq.q.id/ 8) * CEV_ISR_SIZE);
1360 event_handle(adapter, &adapter->tx_eq);
1361 event_handle(adapter, &adapter->rx_eq);
1366 static irqreturn_t be_msix_rx(int irq, void *dev)
1368 struct be_adapter *adapter = dev;
1370 event_handle(adapter, &adapter->rx_eq);
1375 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1377 struct be_adapter *adapter = dev;
1379 event_handle(adapter, &adapter->tx_eq);
1384 static inline bool do_gro(struct be_adapter *adapter,
1385 struct be_eth_rx_compl *rxcp)
1387 int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1388 int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1391 drvr_stats(adapter)->be_rxcp_err++;
1393 return (tcp_frame && !err) ? true : false;
1396 int be_poll_rx(struct napi_struct *napi, int budget)
1398 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1399 struct be_adapter *adapter =
1400 container_of(rx_eq, struct be_adapter, rx_eq);
1401 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1402 struct be_eth_rx_compl *rxcp;
1405 adapter->stats.drvr_stats.be_rx_polls++;
1406 for (work_done = 0; work_done < budget; work_done++) {
1407 rxcp = be_rx_compl_get(adapter);
1411 if (do_gro(adapter, rxcp))
1412 be_rx_compl_process_gro(adapter, rxcp);
1414 be_rx_compl_process(adapter, rxcp);
1416 be_rx_compl_reset(rxcp);
1419 /* Refill the queue */
1420 if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1421 be_post_rx_frags(adapter);
1424 if (work_done < budget) {
1425 napi_complete(napi);
1426 be_cq_notify(adapter, rx_cq->id, true, work_done);
1428 /* More to be consumed; continue with interrupts disabled */
1429 be_cq_notify(adapter, rx_cq->id, false, work_done);
1434 void be_process_tx(struct be_adapter *adapter)
1436 struct be_queue_info *txq = &adapter->tx_obj.q;
1437 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1438 struct be_eth_tx_compl *txcp;
1442 while ((txcp = be_tx_compl_get(tx_cq))) {
1443 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1445 be_tx_compl_process(adapter, end_idx);
1450 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1452 /* As Tx wrbs have been freed up, wake up netdev queue if
1453 * it was stopped due to lack of tx wrbs.
1455 if (netif_queue_stopped(adapter->netdev) &&
1456 atomic_read(&txq->used) < txq->len / 2) {
1457 netif_wake_queue(adapter->netdev);
1460 drvr_stats(adapter)->be_tx_events++;
1461 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1465 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1466 * For TX/MCC we don't honour budget; consume everything
1468 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1470 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1471 struct be_adapter *adapter =
1472 container_of(tx_eq, struct be_adapter, tx_eq);
1474 napi_complete(napi);
1476 be_process_tx(adapter);
1478 be_process_mcc(adapter);
1483 static void be_worker(struct work_struct *work)
1485 struct be_adapter *adapter =
1486 container_of(work, struct be_adapter, work.work);
1488 be_cmd_get_stats(adapter, &adapter->stats.cmd);
1491 be_rx_eqd_update(adapter);
1493 be_tx_rate_update(adapter);
1494 be_rx_rate_update(adapter);
1496 if (adapter->rx_post_starved) {
1497 adapter->rx_post_starved = false;
1498 be_post_rx_frags(adapter);
1501 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1504 static void be_msix_disable(struct be_adapter *adapter)
1506 if (adapter->msix_enabled) {
1507 pci_disable_msix(adapter->pdev);
1508 adapter->msix_enabled = false;
1512 static void be_msix_enable(struct be_adapter *adapter)
1516 for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1517 adapter->msix_entries[i].entry = i;
1519 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1520 BE_NUM_MSIX_VECTORS);
1522 adapter->msix_enabled = true;
1526 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1528 return adapter->msix_entries[
1529 be_evt_bit_get(adapter, eq_id)].vector;
1532 static int be_request_irq(struct be_adapter *adapter,
1533 struct be_eq_obj *eq_obj,
1534 void *handler, char *desc)
1536 struct net_device *netdev = adapter->netdev;
1539 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1540 vec = be_msix_vec_get(adapter, eq_obj->q.id);
1541 return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1544 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1546 int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1547 free_irq(vec, adapter);
1550 static int be_msix_register(struct be_adapter *adapter)
1554 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1558 status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1565 be_free_irq(adapter, &adapter->tx_eq);
1567 dev_warn(&adapter->pdev->dev,
1568 "MSIX Request IRQ failed - err %d\n", status);
1569 pci_disable_msix(adapter->pdev);
1570 adapter->msix_enabled = false;
1574 static int be_irq_register(struct be_adapter *adapter)
1576 struct net_device *netdev = adapter->netdev;
1579 if (adapter->msix_enabled) {
1580 status = be_msix_register(adapter);
1586 netdev->irq = adapter->pdev->irq;
1587 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1590 dev_err(&adapter->pdev->dev,
1591 "INTx request IRQ failed - err %d\n", status);
1595 adapter->isr_registered = true;
1599 static void be_irq_unregister(struct be_adapter *adapter)
1601 struct net_device *netdev = adapter->netdev;
1603 if (!adapter->isr_registered)
1607 if (!adapter->msix_enabled) {
1608 free_irq(netdev->irq, adapter);
1613 be_free_irq(adapter, &adapter->tx_eq);
1614 be_free_irq(adapter, &adapter->rx_eq);
1616 adapter->isr_registered = false;
1620 static int be_open(struct net_device *netdev)
1622 struct be_adapter *adapter = netdev_priv(netdev);
1623 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1624 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1630 /* First time posting */
1631 be_post_rx_frags(adapter);
1633 napi_enable(&rx_eq->napi);
1634 napi_enable(&tx_eq->napi);
1636 be_irq_register(adapter);
1638 be_intr_set(adapter, true);
1640 /* The evt queues are created in unarmed state; arm them */
1641 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1642 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1644 /* Rx compl queue may be in unarmed state; rearm it */
1645 be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1647 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
1651 be_link_status_update(adapter, link_up);
1653 status = be_vid_config(adapter);
1657 status = be_cmd_set_flow_control(adapter,
1658 adapter->tx_fc, adapter->rx_fc);
1662 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1667 static int be_setup_wol(struct be_adapter *adapter, bool enable)
1669 struct be_dma_mem cmd;
1673 memset(mac, 0, ETH_ALEN);
1675 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
1676 cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
1679 memset(cmd.va, 0, cmd.size);
1682 status = pci_write_config_dword(adapter->pdev,
1683 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
1685 dev_err(&adapter->pdev->dev,
1686 "Could not enable Wake-on-lan \n");
1687 pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
1691 status = be_cmd_enable_magic_wol(adapter,
1692 adapter->netdev->dev_addr, &cmd);
1693 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
1694 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
1696 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
1697 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
1698 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
1701 pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
1705 static int be_setup(struct be_adapter *adapter)
1707 struct net_device *netdev = adapter->netdev;
1708 u32 cap_flags, en_flags;
1711 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1712 BE_IF_FLAGS_MCAST_PROMISCUOUS |
1713 BE_IF_FLAGS_PROMISCUOUS |
1714 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1715 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1716 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1718 status = be_cmd_if_create(adapter, cap_flags, en_flags,
1719 netdev->dev_addr, false/* pmac_invalid */,
1720 &adapter->if_handle, &adapter->pmac_id);
1724 status = be_tx_queues_create(adapter);
1728 status = be_rx_queues_create(adapter);
1732 status = be_mcc_queues_create(adapter);
1736 adapter->link_speed = -1;
1741 be_rx_queues_destroy(adapter);
1743 be_tx_queues_destroy(adapter);
1745 be_cmd_if_destroy(adapter, adapter->if_handle);
1750 static int be_clear(struct be_adapter *adapter)
1752 be_mcc_queues_destroy(adapter);
1753 be_rx_queues_destroy(adapter);
1754 be_tx_queues_destroy(adapter);
1756 be_cmd_if_destroy(adapter, adapter->if_handle);
1758 /* tell fw we're done with firing cmds */
1759 be_cmd_fw_clean(adapter);
1763 static int be_close(struct net_device *netdev)
1765 struct be_adapter *adapter = netdev_priv(netdev);
1766 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1767 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1770 cancel_delayed_work_sync(&adapter->work);
1772 netif_stop_queue(netdev);
1773 netif_carrier_off(netdev);
1774 adapter->link_up = false;
1776 be_intr_set(adapter, false);
1778 if (adapter->msix_enabled) {
1779 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1780 synchronize_irq(vec);
1781 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1782 synchronize_irq(vec);
1784 synchronize_irq(netdev->irq);
1786 be_irq_unregister(adapter);
1788 napi_disable(&rx_eq->napi);
1789 napi_disable(&tx_eq->napi);
1791 /* Wait for all pending tx completions to arrive so that
1792 * all tx skbs are freed.
1794 be_tx_compl_clean(adapter);
1799 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
1800 char flash_cookie[2][16] = {"*** SE FLAS",
1801 "H DIRECTORY *** "};
1803 static bool be_flash_redboot(struct be_adapter *adapter,
1804 const u8 *p, u32 img_start, int image_size,
1811 crc_offset = hdr_size + img_start + image_size - 4;
1815 status = be_cmd_get_flash_crc(adapter, flashed_crc,
1816 (img_start + image_size - 4));
1818 dev_err(&adapter->pdev->dev,
1819 "could not get crc from flash, not flashing redboot\n");
1823 /*update redboot only if crc does not match*/
1824 if (!memcmp(flashed_crc, p, 4))
1830 static int be_flash_data(struct be_adapter *adapter,
1831 const struct firmware *fw,
1832 struct be_dma_mem *flash_cmd, int num_of_images)
1835 int status = 0, i, filehdr_size = 0;
1836 u32 total_bytes = 0, flash_op;
1838 const u8 *p = fw->data;
1839 struct be_cmd_write_flashrom *req = flash_cmd->va;
1840 struct flash_comp *pflashcomp;
1842 struct flash_comp gen3_flash_types[8] = {
1843 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
1844 FLASH_IMAGE_MAX_SIZE_g3},
1845 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
1846 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
1847 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
1848 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1849 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
1850 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1851 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
1852 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1853 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
1854 FLASH_IMAGE_MAX_SIZE_g3},
1855 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
1856 FLASH_IMAGE_MAX_SIZE_g3},
1857 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
1858 FLASH_IMAGE_MAX_SIZE_g3}
1860 struct flash_comp gen2_flash_types[8] = {
1861 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
1862 FLASH_IMAGE_MAX_SIZE_g2},
1863 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
1864 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
1865 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
1866 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1867 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
1868 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1869 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
1870 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1871 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
1872 FLASH_IMAGE_MAX_SIZE_g2},
1873 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
1874 FLASH_IMAGE_MAX_SIZE_g2},
1875 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
1876 FLASH_IMAGE_MAX_SIZE_g2}
1879 if (adapter->generation == BE_GEN3) {
1880 pflashcomp = gen3_flash_types;
1881 filehdr_size = sizeof(struct flash_file_hdr_g3);
1883 pflashcomp = gen2_flash_types;
1884 filehdr_size = sizeof(struct flash_file_hdr_g2);
1886 for (i = 0; i < 8; i++) {
1887 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
1888 (!be_flash_redboot(adapter, fw->data,
1889 pflashcomp[i].offset, pflashcomp[i].size,
1893 p += filehdr_size + pflashcomp[i].offset
1894 + (num_of_images * sizeof(struct image_hdr));
1895 if (p + pflashcomp[i].size > fw->data + fw->size)
1897 total_bytes = pflashcomp[i].size;
1898 while (total_bytes) {
1899 if (total_bytes > 32*1024)
1900 num_bytes = 32*1024;
1902 num_bytes = total_bytes;
1903 total_bytes -= num_bytes;
1906 flash_op = FLASHROM_OPER_FLASH;
1908 flash_op = FLASHROM_OPER_SAVE;
1909 memcpy(req->params.data_buf, p, num_bytes);
1911 status = be_cmd_write_flashrom(adapter, flash_cmd,
1912 pflashcomp[i].optype, flash_op, num_bytes);
1914 dev_err(&adapter->pdev->dev,
1915 "cmd to write to flash rom failed.\n");
1924 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
1928 if (fhdr->build[0] == '3')
1930 else if (fhdr->build[0] == '2')
1936 int be_load_fw(struct be_adapter *adapter, u8 *func)
1938 char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1939 const struct firmware *fw;
1940 struct flash_file_hdr_g2 *fhdr;
1941 struct flash_file_hdr_g3 *fhdr3;
1942 struct image_hdr *img_hdr_ptr = NULL;
1943 struct be_dma_mem flash_cmd;
1946 char fw_ver[FW_VER_LEN];
1949 status = be_cmd_get_fw_ver(adapter, fw_ver);
1953 fw_cfg = *(fw_ver + 2);
1956 strcpy(fw_file, func);
1958 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1963 fhdr = (struct flash_file_hdr_g2 *) p;
1964 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1966 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1967 flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1969 if (!flash_cmd.va) {
1971 dev_err(&adapter->pdev->dev,
1972 "Memory allocation failure while flashing\n");
1976 if ((adapter->generation == BE_GEN3) &&
1977 (get_ufigen_type(fhdr) == BE_GEN3)) {
1978 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
1979 for (i = 0; i < fhdr3->num_imgs; i++) {
1980 img_hdr_ptr = (struct image_hdr *) (fw->data +
1981 (sizeof(struct flash_file_hdr_g3) +
1982 i * sizeof(struct image_hdr)));
1983 if (img_hdr_ptr->imageid == 1) {
1984 status = be_flash_data(adapter, fw,
1985 &flash_cmd, fhdr3->num_imgs);
1989 } else if ((adapter->generation == BE_GEN2) &&
1990 (get_ufigen_type(fhdr) == BE_GEN2)) {
1991 status = be_flash_data(adapter, fw, &flash_cmd, 0);
1993 dev_err(&adapter->pdev->dev,
1994 "UFI and Interface are not compatible for flashing\n");
1998 pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
2001 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2005 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2008 release_firmware(fw);
2012 static struct net_device_ops be_netdev_ops = {
2013 .ndo_open = be_open,
2014 .ndo_stop = be_close,
2015 .ndo_start_xmit = be_xmit,
2016 .ndo_get_stats = be_get_stats,
2017 .ndo_set_rx_mode = be_set_multicast_list,
2018 .ndo_set_mac_address = be_mac_addr_set,
2019 .ndo_change_mtu = be_change_mtu,
2020 .ndo_validate_addr = eth_validate_addr,
2021 .ndo_vlan_rx_register = be_vlan_register,
2022 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2023 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2026 static void be_netdev_init(struct net_device *netdev)
2028 struct be_adapter *adapter = netdev_priv(netdev);
2030 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2031 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
2034 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
2036 netdev->flags |= IFF_MULTICAST;
2038 adapter->rx_csum = true;
2040 /* Default settings for Rx and Tx flow control */
2041 adapter->rx_fc = true;
2042 adapter->tx_fc = true;
2044 netif_set_gso_max_size(netdev, 65535);
2046 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2048 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2050 netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
2052 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2055 netif_carrier_off(netdev);
2056 netif_stop_queue(netdev);
2059 static void be_unmap_pci_bars(struct be_adapter *adapter)
2062 iounmap(adapter->csr);
2064 iounmap(adapter->db);
2065 if (adapter->pcicfg)
2066 iounmap(adapter->pcicfg);
2069 static int be_map_pci_bars(struct be_adapter *adapter)
2074 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2075 pci_resource_len(adapter->pdev, 2));
2078 adapter->csr = addr;
2080 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
2086 if (adapter->generation == BE_GEN2)
2091 addr = ioremap_nocache(pci_resource_start(adapter->pdev, pcicfg_reg),
2092 pci_resource_len(adapter->pdev, pcicfg_reg));
2095 adapter->pcicfg = addr;
2099 be_unmap_pci_bars(adapter);
2104 static void be_ctrl_cleanup(struct be_adapter *adapter)
2106 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2108 be_unmap_pci_bars(adapter);
2111 pci_free_consistent(adapter->pdev, mem->size,
2114 mem = &adapter->mc_cmd_mem;
2116 pci_free_consistent(adapter->pdev, mem->size,
2120 static int be_ctrl_init(struct be_adapter *adapter)
2122 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2123 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2124 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2127 status = be_map_pci_bars(adapter);
2131 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2132 mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2133 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2134 if (!mbox_mem_alloc->va) {
2136 goto unmap_pci_bars;
2139 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2140 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2141 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2142 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2144 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2145 mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2147 if (mc_cmd_mem->va == NULL) {
2151 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2153 spin_lock_init(&adapter->mbox_lock);
2154 spin_lock_init(&adapter->mcc_lock);
2155 spin_lock_init(&adapter->mcc_cq_lock);
2160 pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2161 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2164 be_unmap_pci_bars(adapter);
2170 static void be_stats_cleanup(struct be_adapter *adapter)
2172 struct be_stats_obj *stats = &adapter->stats;
2173 struct be_dma_mem *cmd = &stats->cmd;
2176 pci_free_consistent(adapter->pdev, cmd->size,
2180 static int be_stats_init(struct be_adapter *adapter)
2182 struct be_stats_obj *stats = &adapter->stats;
2183 struct be_dma_mem *cmd = &stats->cmd;
2185 cmd->size = sizeof(struct be_cmd_req_get_stats);
2186 cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2187 if (cmd->va == NULL)
2189 memset(cmd->va, 0, cmd->size);
2193 static void __devexit be_remove(struct pci_dev *pdev)
2195 struct be_adapter *adapter = pci_get_drvdata(pdev);
2200 unregister_netdev(adapter->netdev);
2204 be_stats_cleanup(adapter);
2206 be_ctrl_cleanup(adapter);
2208 be_msix_disable(adapter);
2210 pci_set_drvdata(pdev, NULL);
2211 pci_release_regions(pdev);
2212 pci_disable_device(pdev);
2214 free_netdev(adapter->netdev);
2217 static int be_get_config(struct be_adapter *adapter)
2222 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2226 status = be_cmd_query_fw_cfg(adapter,
2227 &adapter->port_num, &adapter->cap);
2231 memset(mac, 0, ETH_ALEN);
2232 status = be_cmd_mac_addr_query(adapter, mac,
2233 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2237 if (!is_valid_ether_addr(mac))
2238 return -EADDRNOTAVAIL;
2240 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2241 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2243 if (adapter->cap & 0x400)
2244 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
2246 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2251 static int __devinit be_probe(struct pci_dev *pdev,
2252 const struct pci_device_id *pdev_id)
2255 struct be_adapter *adapter;
2256 struct net_device *netdev;
2258 status = pci_enable_device(pdev);
2262 status = pci_request_regions(pdev, DRV_NAME);
2265 pci_set_master(pdev);
2267 netdev = alloc_etherdev(sizeof(struct be_adapter));
2268 if (netdev == NULL) {
2272 adapter = netdev_priv(netdev);
2274 switch (pdev->device) {
2277 adapter->generation = BE_GEN2;
2281 adapter->generation = BE_GEN3;
2284 adapter->generation = 0;
2287 adapter->pdev = pdev;
2288 pci_set_drvdata(pdev, adapter);
2289 adapter->netdev = netdev;
2290 be_netdev_init(netdev);
2291 SET_NETDEV_DEV(netdev, &pdev->dev);
2293 be_msix_enable(adapter);
2295 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2297 netdev->features |= NETIF_F_HIGHDMA;
2299 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2301 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2306 status = be_ctrl_init(adapter);
2310 /* sync up with fw's ready state */
2311 status = be_cmd_POST(adapter);
2315 /* tell fw we're ready to fire cmds */
2316 status = be_cmd_fw_init(adapter);
2320 status = be_cmd_reset_function(adapter);
2324 status = be_stats_init(adapter);
2328 status = be_get_config(adapter);
2332 INIT_DELAYED_WORK(&adapter->work, be_worker);
2334 status = be_setup(adapter);
2338 status = register_netdev(netdev);
2342 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2348 be_stats_cleanup(adapter);
2350 be_ctrl_cleanup(adapter);
2352 be_msix_disable(adapter);
2353 free_netdev(adapter->netdev);
2354 pci_set_drvdata(pdev, NULL);
2356 pci_release_regions(pdev);
2358 pci_disable_device(pdev);
2360 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2364 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2366 struct be_adapter *adapter = pci_get_drvdata(pdev);
2367 struct net_device *netdev = adapter->netdev;
2370 be_setup_wol(adapter, true);
2372 netif_device_detach(netdev);
2373 if (netif_running(netdev)) {
2378 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2381 pci_save_state(pdev);
2382 pci_disable_device(pdev);
2383 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2387 static int be_resume(struct pci_dev *pdev)
2390 struct be_adapter *adapter = pci_get_drvdata(pdev);
2391 struct net_device *netdev = adapter->netdev;
2393 netif_device_detach(netdev);
2395 status = pci_enable_device(pdev);
2399 pci_set_power_state(pdev, 0);
2400 pci_restore_state(pdev);
2402 /* tell fw we're ready to fire cmds */
2403 status = be_cmd_fw_init(adapter);
2408 if (netif_running(netdev)) {
2413 netif_device_attach(netdev);
2416 be_setup_wol(adapter, false);
2420 static struct pci_driver be_driver = {
2422 .id_table = be_dev_ids,
2424 .remove = be_remove,
2425 .suspend = be_suspend,
2429 static int __init be_init_module(void)
2431 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
2432 rx_frag_size != 2048) {
2433 printk(KERN_WARNING DRV_NAME
2434 " : Module param rx_frag_size must be 2048/4096/8192."
2436 rx_frag_size = 2048;
2439 return pci_register_driver(&be_driver);
2441 module_init(be_init_module);
2443 static void __exit be_exit_module(void)
2445 pci_unregister_driver(&be_driver);
2447 module_exit(be_exit_module);