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) },
37 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
40 MODULE_DEVICE_TABLE(pci, be_dev_ids);
42 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
44 struct be_dma_mem *mem = &q->dma_mem;
46 pci_free_consistent(adapter->pdev, mem->size,
50 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
51 u16 len, u16 entry_size)
53 struct be_dma_mem *mem = &q->dma_mem;
55 memset(q, 0, sizeof(*q));
57 q->entry_size = entry_size;
58 mem->size = len * entry_size;
59 mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
62 memset(mem->va, 0, mem->size);
66 static void be_intr_set(struct be_adapter *adapter, bool enable)
68 u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
69 u32 reg = ioread32(addr);
70 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
72 if (!enabled && enable)
73 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
74 else if (enabled && !enable)
75 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
82 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
85 val |= qid & DB_RQ_RING_ID_MASK;
86 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
87 iowrite32(val, adapter->db + DB_RQ_OFFSET);
90 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
93 val |= qid & DB_TXULP_RING_ID_MASK;
94 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
95 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
98 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
99 bool arm, bool clear_int, u16 num_popped)
102 val |= qid & DB_EQ_RING_ID_MASK;
104 val |= 1 << DB_EQ_REARM_SHIFT;
106 val |= 1 << DB_EQ_CLR_SHIFT;
107 val |= 1 << DB_EQ_EVNT_SHIFT;
108 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
109 iowrite32(val, adapter->db + DB_EQ_OFFSET);
112 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
115 val |= qid & DB_CQ_RING_ID_MASK;
117 val |= 1 << DB_CQ_REARM_SHIFT;
118 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
119 iowrite32(val, adapter->db + DB_CQ_OFFSET);
122 static int be_mac_addr_set(struct net_device *netdev, void *p)
124 struct be_adapter *adapter = netdev_priv(netdev);
125 struct sockaddr *addr = p;
128 if (!is_valid_ether_addr(addr->sa_data))
129 return -EADDRNOTAVAIL;
131 status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
135 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
136 adapter->if_handle, &adapter->pmac_id);
138 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
143 void netdev_stats_update(struct be_adapter *adapter)
145 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
146 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
147 struct be_port_rxf_stats *port_stats =
148 &rxf_stats->port[adapter->port_num];
149 struct net_device_stats *dev_stats = &adapter->netdev->stats;
150 struct be_erx_stats *erx_stats = &hw_stats->erx;
152 dev_stats->rx_packets = port_stats->rx_total_frames;
153 dev_stats->tx_packets = port_stats->tx_unicastframes +
154 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
155 dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
156 (u64) port_stats->rx_bytes_lsd;
157 dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
158 (u64) port_stats->tx_bytes_lsd;
160 /* bad pkts received */
161 dev_stats->rx_errors = port_stats->rx_crc_errors +
162 port_stats->rx_alignment_symbol_errors +
163 port_stats->rx_in_range_errors +
164 port_stats->rx_out_range_errors +
165 port_stats->rx_frame_too_long +
166 port_stats->rx_dropped_too_small +
167 port_stats->rx_dropped_too_short +
168 port_stats->rx_dropped_header_too_small +
169 port_stats->rx_dropped_tcp_length +
170 port_stats->rx_dropped_runt +
171 port_stats->rx_tcp_checksum_errs +
172 port_stats->rx_ip_checksum_errs +
173 port_stats->rx_udp_checksum_errs;
175 /* no space in linux buffers: best possible approximation */
176 dev_stats->rx_dropped =
177 erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id];
179 /* detailed rx errors */
180 dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
181 port_stats->rx_out_range_errors +
182 port_stats->rx_frame_too_long;
184 /* receive ring buffer overflow */
185 dev_stats->rx_over_errors = 0;
187 dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
189 /* frame alignment errors */
190 dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
192 /* receiver fifo overrun */
193 /* drops_no_pbuf is no per i/f, it's per BE card */
194 dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
195 port_stats->rx_input_fifo_overflow +
196 rxf_stats->rx_drops_no_pbuf;
197 /* receiver missed packetd */
198 dev_stats->rx_missed_errors = 0;
200 /* packet transmit problems */
201 dev_stats->tx_errors = 0;
203 /* no space available in linux */
204 dev_stats->tx_dropped = 0;
206 dev_stats->multicast = port_stats->rx_multicast_frames;
207 dev_stats->collisions = 0;
209 /* detailed tx_errors */
210 dev_stats->tx_aborted_errors = 0;
211 dev_stats->tx_carrier_errors = 0;
212 dev_stats->tx_fifo_errors = 0;
213 dev_stats->tx_heartbeat_errors = 0;
214 dev_stats->tx_window_errors = 0;
217 void be_link_status_update(struct be_adapter *adapter, bool link_up)
219 struct net_device *netdev = adapter->netdev;
221 /* If link came up or went down */
222 if (adapter->link_up != link_up) {
223 adapter->link_speed = -1;
225 netif_start_queue(netdev);
226 netif_carrier_on(netdev);
227 printk(KERN_INFO "%s: Link up\n", netdev->name);
229 netif_stop_queue(netdev);
230 netif_carrier_off(netdev);
231 printk(KERN_INFO "%s: Link down\n", netdev->name);
233 adapter->link_up = link_up;
237 /* Update the EQ delay n BE based on the RX frags consumed / sec */
238 static void be_rx_eqd_update(struct be_adapter *adapter)
240 struct be_eq_obj *rx_eq = &adapter->rx_eq;
241 struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
245 if (!rx_eq->enable_aic)
249 if (time_before(now, stats->rx_fps_jiffies)) {
250 stats->rx_fps_jiffies = now;
254 /* Update once a second */
255 if ((now - stats->rx_fps_jiffies) < HZ)
258 stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
259 ((now - stats->rx_fps_jiffies) / HZ);
261 stats->rx_fps_jiffies = now;
262 stats->be_prev_rx_frags = stats->be_rx_frags;
263 eqd = stats->be_rx_fps / 110000;
265 if (eqd > rx_eq->max_eqd)
266 eqd = rx_eq->max_eqd;
267 if (eqd < rx_eq->min_eqd)
268 eqd = rx_eq->min_eqd;
271 if (eqd != rx_eq->cur_eqd)
272 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
274 rx_eq->cur_eqd = eqd;
277 static struct net_device_stats *be_get_stats(struct net_device *dev)
282 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
286 do_div(rate, ticks / HZ);
287 rate <<= 3; /* bytes/sec -> bits/sec */
288 do_div(rate, 1000000ul); /* MB/Sec */
293 static void be_tx_rate_update(struct be_adapter *adapter)
295 struct be_drvr_stats *stats = drvr_stats(adapter);
298 /* Wrapped around? */
299 if (time_before(now, stats->be_tx_jiffies)) {
300 stats->be_tx_jiffies = now;
304 /* Update tx rate once in two seconds */
305 if ((now - stats->be_tx_jiffies) > 2 * HZ) {
306 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
307 - stats->be_tx_bytes_prev,
308 now - stats->be_tx_jiffies);
309 stats->be_tx_jiffies = now;
310 stats->be_tx_bytes_prev = stats->be_tx_bytes;
314 static void be_tx_stats_update(struct be_adapter *adapter,
315 u32 wrb_cnt, u32 copied, bool stopped)
317 struct be_drvr_stats *stats = drvr_stats(adapter);
319 stats->be_tx_wrbs += wrb_cnt;
320 stats->be_tx_bytes += copied;
322 stats->be_tx_stops++;
325 /* Determine number of WRB entries needed to xmit data in an skb */
326 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
328 int cnt = (skb->len > skb->data_len);
330 cnt += skb_shinfo(skb)->nr_frags;
332 /* to account for hdr wrb */
335 /* add a dummy to make it an even num */
340 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
344 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
346 wrb->frag_pa_hi = upper_32_bits(addr);
347 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
348 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
351 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
352 bool vlan, u32 wrb_cnt, u32 len)
354 memset(hdr, 0, sizeof(*hdr));
356 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
358 if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
359 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
360 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
361 hdr, skb_shinfo(skb)->gso_size);
362 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
364 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
365 else if (is_udp_pkt(skb))
366 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
369 if (vlan && vlan_tx_tag_present(skb)) {
370 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
371 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
372 hdr, vlan_tx_tag_get(skb));
375 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
376 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
377 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
378 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
382 static int make_tx_wrbs(struct be_adapter *adapter,
383 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
387 struct pci_dev *pdev = adapter->pdev;
388 struct sk_buff *first_skb = skb;
389 struct be_queue_info *txq = &adapter->tx_obj.q;
390 struct be_eth_wrb *wrb;
391 struct be_eth_hdr_wrb *hdr;
393 hdr = queue_head_node(txq);
394 atomic_add(wrb_cnt, &txq->used);
397 if (skb->len > skb->data_len) {
398 int len = skb->len - skb->data_len;
399 busaddr = pci_map_single(pdev, skb->data, len,
401 wrb = queue_head_node(txq);
402 wrb_fill(wrb, busaddr, len);
403 be_dws_cpu_to_le(wrb, sizeof(*wrb));
408 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
409 struct skb_frag_struct *frag =
410 &skb_shinfo(skb)->frags[i];
411 busaddr = pci_map_page(pdev, frag->page,
413 frag->size, PCI_DMA_TODEVICE);
414 wrb = queue_head_node(txq);
415 wrb_fill(wrb, busaddr, frag->size);
416 be_dws_cpu_to_le(wrb, sizeof(*wrb));
418 copied += frag->size;
422 wrb = queue_head_node(txq);
424 be_dws_cpu_to_le(wrb, sizeof(*wrb));
428 wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
430 be_dws_cpu_to_le(hdr, sizeof(*hdr));
435 static netdev_tx_t be_xmit(struct sk_buff *skb,
436 struct net_device *netdev)
438 struct be_adapter *adapter = netdev_priv(netdev);
439 struct be_tx_obj *tx_obj = &adapter->tx_obj;
440 struct be_queue_info *txq = &tx_obj->q;
441 u32 wrb_cnt = 0, copied = 0;
442 u32 start = txq->head;
443 bool dummy_wrb, stopped = false;
445 wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
447 copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
449 /* record the sent skb in the sent_skb table */
450 BUG_ON(tx_obj->sent_skb_list[start]);
451 tx_obj->sent_skb_list[start] = skb;
453 /* Ensure txq has space for the next skb; Else stop the queue
454 * *BEFORE* ringing the tx doorbell, so that we serialze the
455 * tx compls of the current transmit which'll wake up the queue
457 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
459 netif_stop_queue(netdev);
463 be_txq_notify(adapter, txq->id, wrb_cnt);
465 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
468 dev_kfree_skb_any(skb);
473 static int be_change_mtu(struct net_device *netdev, int new_mtu)
475 struct be_adapter *adapter = netdev_priv(netdev);
476 if (new_mtu < BE_MIN_MTU ||
477 new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
478 dev_info(&adapter->pdev->dev,
479 "MTU must be between %d and %d bytes\n",
480 BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
483 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
484 netdev->mtu, new_mtu);
485 netdev->mtu = new_mtu;
490 * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
491 * program them in BE. If more than BE_NUM_VLANS_SUPPORTED are configured,
492 * set the BE in promiscuous VLAN mode.
494 static int be_vid_config(struct be_adapter *adapter)
496 u16 vtag[BE_NUM_VLANS_SUPPORTED];
500 if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED) {
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->num_vlans++;
535 adapter->vlan_tag[vid] = 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->num_vlans--;
545 adapter->vlan_tag[vid] = 0;
547 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
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 || netdev->mc_count > BE_MAX_MC) {
569 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0,
570 &adapter->mc_cmd_mem);
574 be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
575 netdev->mc_count, &adapter->mc_cmd_mem);
580 static void be_rx_rate_update(struct be_adapter *adapter)
582 struct be_drvr_stats *stats = drvr_stats(adapter);
586 if (time_before(now, stats->be_rx_jiffies)) {
587 stats->be_rx_jiffies = now;
591 /* Update the rate once in two seconds */
592 if ((now - stats->be_rx_jiffies) < 2 * HZ)
595 stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
596 - stats->be_rx_bytes_prev,
597 now - stats->be_rx_jiffies);
598 stats->be_rx_jiffies = now;
599 stats->be_rx_bytes_prev = stats->be_rx_bytes;
602 static void be_rx_stats_update(struct be_adapter *adapter,
603 u32 pktsize, u16 numfrags)
605 struct be_drvr_stats *stats = drvr_stats(adapter);
607 stats->be_rx_compl++;
608 stats->be_rx_frags += numfrags;
609 stats->be_rx_bytes += pktsize;
612 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
614 u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
616 l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
617 ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
618 ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
620 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
621 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
623 ipv6_chk = (ip_version && (tcpf || udpf));
625 return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
628 static struct be_rx_page_info *
629 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
631 struct be_rx_page_info *rx_page_info;
632 struct be_queue_info *rxq = &adapter->rx_obj.q;
634 rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
635 BUG_ON(!rx_page_info->page);
637 if (rx_page_info->last_page_user)
638 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
639 adapter->big_page_size, PCI_DMA_FROMDEVICE);
641 atomic_dec(&rxq->used);
645 /* Throwaway the data in the Rx completion */
646 static void be_rx_compl_discard(struct be_adapter *adapter,
647 struct be_eth_rx_compl *rxcp)
649 struct be_queue_info *rxq = &adapter->rx_obj.q;
650 struct be_rx_page_info *page_info;
651 u16 rxq_idx, i, num_rcvd;
653 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
654 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
656 for (i = 0; i < num_rcvd; i++) {
657 page_info = get_rx_page_info(adapter, rxq_idx);
658 put_page(page_info->page);
659 memset(page_info, 0, sizeof(*page_info));
660 index_inc(&rxq_idx, rxq->len);
665 * skb_fill_rx_data forms a complete skb for an ether frame
668 static void skb_fill_rx_data(struct be_adapter *adapter,
669 struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
671 struct be_queue_info *rxq = &adapter->rx_obj.q;
672 struct be_rx_page_info *page_info;
673 u16 rxq_idx, i, num_rcvd, j;
674 u32 pktsize, hdr_len, curr_frag_len, size;
677 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
678 pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
679 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
681 page_info = get_rx_page_info(adapter, rxq_idx);
683 start = page_address(page_info->page) + page_info->page_offset;
686 /* Copy data in the first descriptor of this completion */
687 curr_frag_len = min(pktsize, rx_frag_size);
689 /* Copy the header portion into skb_data */
690 hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
691 memcpy(skb->data, start, hdr_len);
692 skb->len = curr_frag_len;
693 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
694 /* Complete packet has now been moved to data */
695 put_page(page_info->page);
697 skb->tail += curr_frag_len;
699 skb_shinfo(skb)->nr_frags = 1;
700 skb_shinfo(skb)->frags[0].page = page_info->page;
701 skb_shinfo(skb)->frags[0].page_offset =
702 page_info->page_offset + hdr_len;
703 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
704 skb->data_len = curr_frag_len - hdr_len;
705 skb->tail += hdr_len;
707 memset(page_info, 0, sizeof(*page_info));
709 if (pktsize <= rx_frag_size) {
710 BUG_ON(num_rcvd != 1);
714 /* More frags present for this completion */
716 for (i = 1, j = 0; i < num_rcvd; i++) {
717 size -= curr_frag_len;
718 index_inc(&rxq_idx, rxq->len);
719 page_info = get_rx_page_info(adapter, rxq_idx);
721 curr_frag_len = min(size, rx_frag_size);
723 /* Coalesce all frags from the same physical page in one slot */
724 if (page_info->page_offset == 0) {
727 skb_shinfo(skb)->frags[j].page = page_info->page;
728 skb_shinfo(skb)->frags[j].page_offset =
729 page_info->page_offset;
730 skb_shinfo(skb)->frags[j].size = 0;
731 skb_shinfo(skb)->nr_frags++;
733 put_page(page_info->page);
736 skb_shinfo(skb)->frags[j].size += curr_frag_len;
737 skb->len += curr_frag_len;
738 skb->data_len += curr_frag_len;
740 memset(page_info, 0, sizeof(*page_info));
742 BUG_ON(j > MAX_SKB_FRAGS);
745 be_rx_stats_update(adapter, pktsize, num_rcvd);
749 /* Process the RX completion indicated by rxcp when GRO is disabled */
750 static void be_rx_compl_process(struct be_adapter *adapter,
751 struct be_eth_rx_compl *rxcp)
757 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
758 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
760 /* vlanf could be wrongly set in some cards.
761 * ignore if vtm is not set */
762 if ((adapter->cap & 0x400) && !vtm)
765 skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
768 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
769 be_rx_compl_discard(adapter, rxcp);
773 skb_fill_rx_data(adapter, skb, rxcp);
775 if (do_pkt_csum(rxcp, adapter->rx_csum))
776 skb->ip_summed = CHECKSUM_NONE;
778 skb->ip_summed = CHECKSUM_UNNECESSARY;
780 skb->truesize = skb->len + sizeof(struct sk_buff);
781 skb->protocol = eth_type_trans(skb, adapter->netdev);
782 skb->dev = adapter->netdev;
785 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
789 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
790 vid = be16_to_cpu(vid);
791 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
793 netif_receive_skb(skb);
799 /* Process the RX completion indicated by rxcp when GRO is enabled */
800 static void be_rx_compl_process_gro(struct be_adapter *adapter,
801 struct be_eth_rx_compl *rxcp)
803 struct be_rx_page_info *page_info;
804 struct sk_buff *skb = NULL;
805 struct be_queue_info *rxq = &adapter->rx_obj.q;
806 struct be_eq_obj *eq_obj = &adapter->rx_eq;
807 u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
808 u16 i, rxq_idx = 0, vid, j;
811 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
812 pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
813 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
814 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
815 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
817 /* vlanf could be wrongly set in some cards.
818 * ignore if vtm is not set */
819 if ((adapter->cap & 0x400) && !vtm)
822 skb = napi_get_frags(&eq_obj->napi);
824 be_rx_compl_discard(adapter, rxcp);
828 remaining = pkt_size;
829 for (i = 0, j = -1; i < num_rcvd; i++) {
830 page_info = get_rx_page_info(adapter, rxq_idx);
832 curr_frag_len = min(remaining, rx_frag_size);
834 /* Coalesce all frags from the same physical page in one slot */
835 if (i == 0 || page_info->page_offset == 0) {
836 /* First frag or Fresh page */
838 skb_shinfo(skb)->frags[j].page = page_info->page;
839 skb_shinfo(skb)->frags[j].page_offset =
840 page_info->page_offset;
841 skb_shinfo(skb)->frags[j].size = 0;
843 put_page(page_info->page);
845 skb_shinfo(skb)->frags[j].size += curr_frag_len;
847 remaining -= curr_frag_len;
848 index_inc(&rxq_idx, rxq->len);
849 memset(page_info, 0, sizeof(*page_info));
851 BUG_ON(j > MAX_SKB_FRAGS);
853 skb_shinfo(skb)->nr_frags = j + 1;
855 skb->data_len = pkt_size;
856 skb->truesize += pkt_size;
857 skb->ip_summed = CHECKSUM_UNNECESSARY;
859 if (likely(!vlanf)) {
860 napi_gro_frags(&eq_obj->napi);
862 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
863 vid = be16_to_cpu(vid);
865 if (!adapter->vlan_grp || adapter->num_vlans == 0)
868 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
871 be_rx_stats_update(adapter, pkt_size, num_rcvd);
875 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
877 struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
879 if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
882 be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
884 queue_tail_inc(&adapter->rx_obj.cq);
888 /* To reset the valid bit, we need to reset the whole word as
889 * when walking the queue the valid entries are little-endian
890 * and invalid entries are host endian
892 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
894 rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
897 static inline struct page *be_alloc_pages(u32 size)
899 gfp_t alloc_flags = GFP_ATOMIC;
900 u32 order = get_order(size);
902 alloc_flags |= __GFP_COMP;
903 return alloc_pages(alloc_flags, order);
907 * Allocate a page, split it to fragments of size rx_frag_size and post as
908 * receive buffers to BE
910 static void be_post_rx_frags(struct be_adapter *adapter)
912 struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
913 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
914 struct be_queue_info *rxq = &adapter->rx_obj.q;
915 struct page *pagep = NULL;
916 struct be_eth_rx_d *rxd;
917 u64 page_dmaaddr = 0, frag_dmaaddr;
918 u32 posted, page_offset = 0;
920 page_info = &page_info_tbl[rxq->head];
921 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
923 pagep = be_alloc_pages(adapter->big_page_size);
924 if (unlikely(!pagep)) {
925 drvr_stats(adapter)->be_ethrx_post_fail++;
928 page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
929 adapter->big_page_size,
931 page_info->page_offset = 0;
934 page_info->page_offset = page_offset + rx_frag_size;
936 page_offset = page_info->page_offset;
937 page_info->page = pagep;
938 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
939 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
941 rxd = queue_head_node(rxq);
942 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
943 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
945 /* Any space left in the current big page for another frag? */
946 if ((page_offset + rx_frag_size + rx_frag_size) >
947 adapter->big_page_size) {
949 page_info->last_page_user = true;
952 prev_page_info = page_info;
954 page_info = &page_info_tbl[rxq->head];
957 prev_page_info->last_page_user = true;
960 atomic_add(posted, &rxq->used);
961 be_rxq_notify(adapter, rxq->id, posted);
962 } else if (atomic_read(&rxq->used) == 0) {
963 /* Let be_worker replenish when memory is available */
964 adapter->rx_post_starved = true;
970 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
972 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
974 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
977 be_dws_le_to_cpu(txcp, sizeof(*txcp));
979 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
981 queue_tail_inc(tx_cq);
985 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
987 struct be_queue_info *txq = &adapter->tx_obj.q;
988 struct be_eth_wrb *wrb;
989 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
990 struct sk_buff *sent_skb;
992 u16 cur_index, num_wrbs = 0;
994 cur_index = txq->tail;
995 sent_skb = sent_skbs[cur_index];
997 sent_skbs[cur_index] = NULL;
998 wrb = queue_tail_node(txq);
999 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1000 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1002 pci_unmap_single(adapter->pdev, busaddr,
1003 wrb->frag_len, PCI_DMA_TODEVICE);
1006 queue_tail_inc(txq);
1008 while (cur_index != last_index) {
1009 cur_index = txq->tail;
1010 wrb = queue_tail_node(txq);
1011 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1012 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1014 pci_unmap_page(adapter->pdev, busaddr,
1015 wrb->frag_len, PCI_DMA_TODEVICE);
1018 queue_tail_inc(txq);
1021 atomic_sub(num_wrbs, &txq->used);
1023 kfree_skb(sent_skb);
1026 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1028 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1033 eqe->evt = le32_to_cpu(eqe->evt);
1034 queue_tail_inc(&eq_obj->q);
1038 static int event_handle(struct be_adapter *adapter,
1039 struct be_eq_obj *eq_obj)
1041 struct be_eq_entry *eqe;
1044 while ((eqe = event_get(eq_obj)) != NULL) {
1049 /* Deal with any spurious interrupts that come
1052 be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1054 napi_schedule(&eq_obj->napi);
1059 /* Just read and notify events without processing them.
1060 * Used at the time of destroying event queues */
1061 static void be_eq_clean(struct be_adapter *adapter,
1062 struct be_eq_obj *eq_obj)
1064 struct be_eq_entry *eqe;
1067 while ((eqe = event_get(eq_obj)) != NULL) {
1073 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1076 static void be_rx_q_clean(struct be_adapter *adapter)
1078 struct be_rx_page_info *page_info;
1079 struct be_queue_info *rxq = &adapter->rx_obj.q;
1080 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1081 struct be_eth_rx_compl *rxcp;
1084 /* First cleanup pending rx completions */
1085 while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1086 be_rx_compl_discard(adapter, rxcp);
1087 be_rx_compl_reset(rxcp);
1088 be_cq_notify(adapter, rx_cq->id, true, 1);
1091 /* Then free posted rx buffer that were not used */
1092 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1093 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1094 page_info = get_rx_page_info(adapter, tail);
1095 put_page(page_info->page);
1096 memset(page_info, 0, sizeof(*page_info));
1098 BUG_ON(atomic_read(&rxq->used));
1101 static void be_tx_compl_clean(struct be_adapter *adapter)
1103 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1104 struct be_queue_info *txq = &adapter->tx_obj.q;
1105 struct be_eth_tx_compl *txcp;
1106 u16 end_idx, cmpl = 0, timeo = 0;
1108 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1110 while ((txcp = be_tx_compl_get(tx_cq))) {
1111 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1113 be_tx_compl_process(adapter, end_idx);
1117 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1121 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1127 if (atomic_read(&txq->used))
1128 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1129 atomic_read(&txq->used));
1132 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1134 struct be_queue_info *q;
1136 q = &adapter->mcc_obj.q;
1138 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1139 be_queue_free(adapter, q);
1141 q = &adapter->mcc_obj.cq;
1143 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1144 be_queue_free(adapter, q);
1147 /* Must be called only after TX qs are created as MCC shares TX EQ */
1148 static int be_mcc_queues_create(struct be_adapter *adapter)
1150 struct be_queue_info *q, *cq;
1152 /* Alloc MCC compl queue */
1153 cq = &adapter->mcc_obj.cq;
1154 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1155 sizeof(struct be_mcc_compl)))
1158 /* Ask BE to create MCC compl queue; share TX's eq */
1159 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1162 /* Alloc MCC queue */
1163 q = &adapter->mcc_obj.q;
1164 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1165 goto mcc_cq_destroy;
1167 /* Ask BE to create MCC queue */
1168 if (be_cmd_mccq_create(adapter, q, cq))
1174 be_queue_free(adapter, q);
1176 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1178 be_queue_free(adapter, cq);
1183 static void be_tx_queues_destroy(struct be_adapter *adapter)
1185 struct be_queue_info *q;
1187 q = &adapter->tx_obj.q;
1189 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1190 be_queue_free(adapter, q);
1192 q = &adapter->tx_obj.cq;
1194 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1195 be_queue_free(adapter, q);
1197 /* Clear any residual events */
1198 be_eq_clean(adapter, &adapter->tx_eq);
1200 q = &adapter->tx_eq.q;
1202 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1203 be_queue_free(adapter, q);
1206 static int be_tx_queues_create(struct be_adapter *adapter)
1208 struct be_queue_info *eq, *q, *cq;
1210 adapter->tx_eq.max_eqd = 0;
1211 adapter->tx_eq.min_eqd = 0;
1212 adapter->tx_eq.cur_eqd = 96;
1213 adapter->tx_eq.enable_aic = false;
1214 /* Alloc Tx Event queue */
1215 eq = &adapter->tx_eq.q;
1216 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1219 /* Ask BE to create Tx Event queue */
1220 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1222 /* Alloc TX eth compl queue */
1223 cq = &adapter->tx_obj.cq;
1224 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1225 sizeof(struct be_eth_tx_compl)))
1228 /* Ask BE to create Tx eth compl queue */
1229 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1232 /* Alloc TX eth queue */
1233 q = &adapter->tx_obj.q;
1234 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1237 /* Ask BE to create Tx eth queue */
1238 if (be_cmd_txq_create(adapter, q, cq))
1243 be_queue_free(adapter, q);
1245 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1247 be_queue_free(adapter, cq);
1249 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1251 be_queue_free(adapter, eq);
1255 static void be_rx_queues_destroy(struct be_adapter *adapter)
1257 struct be_queue_info *q;
1259 q = &adapter->rx_obj.q;
1261 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1262 be_rx_q_clean(adapter);
1264 be_queue_free(adapter, q);
1266 q = &adapter->rx_obj.cq;
1268 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1269 be_queue_free(adapter, q);
1271 /* Clear any residual events */
1272 be_eq_clean(adapter, &adapter->rx_eq);
1274 q = &adapter->rx_eq.q;
1276 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1277 be_queue_free(adapter, q);
1280 static int be_rx_queues_create(struct be_adapter *adapter)
1282 struct be_queue_info *eq, *q, *cq;
1285 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1286 adapter->rx_eq.max_eqd = BE_MAX_EQD;
1287 adapter->rx_eq.min_eqd = 0;
1288 adapter->rx_eq.cur_eqd = 0;
1289 adapter->rx_eq.enable_aic = true;
1291 /* Alloc Rx Event queue */
1292 eq = &adapter->rx_eq.q;
1293 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1294 sizeof(struct be_eq_entry));
1298 /* Ask BE to create Rx Event queue */
1299 rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1303 /* Alloc RX eth compl queue */
1304 cq = &adapter->rx_obj.cq;
1305 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1306 sizeof(struct be_eth_rx_compl));
1310 /* Ask BE to create Rx eth compl queue */
1311 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1315 /* Alloc RX eth queue */
1316 q = &adapter->rx_obj.q;
1317 rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1321 /* Ask BE to create Rx eth queue */
1322 rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1323 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1329 be_queue_free(adapter, q);
1331 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1333 be_queue_free(adapter, cq);
1335 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1337 be_queue_free(adapter, eq);
1341 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1342 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1344 return eq_id - 8 * be_pci_func(adapter);
1347 static irqreturn_t be_intx(int irq, void *dev)
1349 struct be_adapter *adapter = dev;
1352 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1353 be_pci_func(adapter) * CEV_ISR_SIZE);
1357 event_handle(adapter, &adapter->tx_eq);
1358 event_handle(adapter, &adapter->rx_eq);
1363 static irqreturn_t be_msix_rx(int irq, void *dev)
1365 struct be_adapter *adapter = dev;
1367 event_handle(adapter, &adapter->rx_eq);
1372 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1374 struct be_adapter *adapter = dev;
1376 event_handle(adapter, &adapter->tx_eq);
1381 static inline bool do_gro(struct be_adapter *adapter,
1382 struct be_eth_rx_compl *rxcp)
1384 int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1385 int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1388 drvr_stats(adapter)->be_rxcp_err++;
1390 return (tcp_frame && !err) ? true : false;
1393 int be_poll_rx(struct napi_struct *napi, int budget)
1395 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1396 struct be_adapter *adapter =
1397 container_of(rx_eq, struct be_adapter, rx_eq);
1398 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1399 struct be_eth_rx_compl *rxcp;
1402 adapter->stats.drvr_stats.be_rx_polls++;
1403 for (work_done = 0; work_done < budget; work_done++) {
1404 rxcp = be_rx_compl_get(adapter);
1408 if (do_gro(adapter, rxcp))
1409 be_rx_compl_process_gro(adapter, rxcp);
1411 be_rx_compl_process(adapter, rxcp);
1413 be_rx_compl_reset(rxcp);
1416 /* Refill the queue */
1417 if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1418 be_post_rx_frags(adapter);
1421 if (work_done < budget) {
1422 napi_complete(napi);
1423 be_cq_notify(adapter, rx_cq->id, true, work_done);
1425 /* More to be consumed; continue with interrupts disabled */
1426 be_cq_notify(adapter, rx_cq->id, false, work_done);
1431 void be_process_tx(struct be_adapter *adapter)
1433 struct be_queue_info *txq = &adapter->tx_obj.q;
1434 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1435 struct be_eth_tx_compl *txcp;
1439 while ((txcp = be_tx_compl_get(tx_cq))) {
1440 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1442 be_tx_compl_process(adapter, end_idx);
1447 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1449 /* As Tx wrbs have been freed up, wake up netdev queue if
1450 * it was stopped due to lack of tx wrbs.
1452 if (netif_queue_stopped(adapter->netdev) &&
1453 atomic_read(&txq->used) < txq->len / 2) {
1454 netif_wake_queue(adapter->netdev);
1457 drvr_stats(adapter)->be_tx_events++;
1458 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1462 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1463 * For TX/MCC we don't honour budget; consume everything
1465 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1467 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1468 struct be_adapter *adapter =
1469 container_of(tx_eq, struct be_adapter, tx_eq);
1471 napi_complete(napi);
1473 be_process_tx(adapter);
1475 be_process_mcc(adapter);
1480 static void be_worker(struct work_struct *work)
1482 struct be_adapter *adapter =
1483 container_of(work, struct be_adapter, work.work);
1485 be_cmd_get_stats(adapter, &adapter->stats.cmd);
1488 be_rx_eqd_update(adapter);
1490 be_tx_rate_update(adapter);
1491 be_rx_rate_update(adapter);
1493 if (adapter->rx_post_starved) {
1494 adapter->rx_post_starved = false;
1495 be_post_rx_frags(adapter);
1498 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1501 static void be_msix_disable(struct be_adapter *adapter)
1503 if (adapter->msix_enabled) {
1504 pci_disable_msix(adapter->pdev);
1505 adapter->msix_enabled = false;
1509 static void be_msix_enable(struct be_adapter *adapter)
1513 for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1514 adapter->msix_entries[i].entry = i;
1516 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1517 BE_NUM_MSIX_VECTORS);
1519 adapter->msix_enabled = true;
1523 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1525 return adapter->msix_entries[
1526 be_evt_bit_get(adapter, eq_id)].vector;
1529 static int be_request_irq(struct be_adapter *adapter,
1530 struct be_eq_obj *eq_obj,
1531 void *handler, char *desc)
1533 struct net_device *netdev = adapter->netdev;
1536 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1537 vec = be_msix_vec_get(adapter, eq_obj->q.id);
1538 return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1541 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1543 int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1544 free_irq(vec, adapter);
1547 static int be_msix_register(struct be_adapter *adapter)
1551 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1555 status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1562 be_free_irq(adapter, &adapter->tx_eq);
1564 dev_warn(&adapter->pdev->dev,
1565 "MSIX Request IRQ failed - err %d\n", status);
1566 pci_disable_msix(adapter->pdev);
1567 adapter->msix_enabled = false;
1571 static int be_irq_register(struct be_adapter *adapter)
1573 struct net_device *netdev = adapter->netdev;
1576 if (adapter->msix_enabled) {
1577 status = be_msix_register(adapter);
1583 netdev->irq = adapter->pdev->irq;
1584 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1587 dev_err(&adapter->pdev->dev,
1588 "INTx request IRQ failed - err %d\n", status);
1592 adapter->isr_registered = true;
1596 static void be_irq_unregister(struct be_adapter *adapter)
1598 struct net_device *netdev = adapter->netdev;
1600 if (!adapter->isr_registered)
1604 if (!adapter->msix_enabled) {
1605 free_irq(netdev->irq, adapter);
1610 be_free_irq(adapter, &adapter->tx_eq);
1611 be_free_irq(adapter, &adapter->rx_eq);
1613 adapter->isr_registered = false;
1617 static int be_open(struct net_device *netdev)
1619 struct be_adapter *adapter = netdev_priv(netdev);
1620 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1621 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1627 /* First time posting */
1628 be_post_rx_frags(adapter);
1630 napi_enable(&rx_eq->napi);
1631 napi_enable(&tx_eq->napi);
1633 be_irq_register(adapter);
1635 be_intr_set(adapter, true);
1637 /* The evt queues are created in unarmed state; arm them */
1638 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1639 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1641 /* Rx compl queue may be in unarmed state; rearm it */
1642 be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1644 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
1648 be_link_status_update(adapter, link_up);
1650 status = be_vid_config(adapter);
1654 status = be_cmd_set_flow_control(adapter,
1655 adapter->tx_fc, adapter->rx_fc);
1659 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1664 static int be_setup_wol(struct be_adapter *adapter, bool enable)
1666 struct be_dma_mem cmd;
1670 memset(mac, 0, ETH_ALEN);
1672 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
1673 cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
1676 memset(cmd.va, 0, cmd.size);
1679 status = pci_write_config_dword(adapter->pdev,
1680 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
1682 dev_err(&adapter->pdev->dev,
1683 "Could not enable Wake-on-lan \n");
1684 pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
1688 status = be_cmd_enable_magic_wol(adapter,
1689 adapter->netdev->dev_addr, &cmd);
1690 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
1691 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
1693 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
1694 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
1695 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
1698 pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
1702 static int be_setup(struct be_adapter *adapter)
1704 struct net_device *netdev = adapter->netdev;
1705 u32 cap_flags, en_flags;
1708 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1709 BE_IF_FLAGS_MCAST_PROMISCUOUS |
1710 BE_IF_FLAGS_PROMISCUOUS |
1711 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1712 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1713 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1715 status = be_cmd_if_create(adapter, cap_flags, en_flags,
1716 netdev->dev_addr, false/* pmac_invalid */,
1717 &adapter->if_handle, &adapter->pmac_id);
1721 status = be_tx_queues_create(adapter);
1725 status = be_rx_queues_create(adapter);
1729 status = be_mcc_queues_create(adapter);
1733 adapter->link_speed = -1;
1738 be_rx_queues_destroy(adapter);
1740 be_tx_queues_destroy(adapter);
1742 be_cmd_if_destroy(adapter, adapter->if_handle);
1747 static int be_clear(struct be_adapter *adapter)
1749 be_mcc_queues_destroy(adapter);
1750 be_rx_queues_destroy(adapter);
1751 be_tx_queues_destroy(adapter);
1753 be_cmd_if_destroy(adapter, adapter->if_handle);
1755 /* tell fw we're done with firing cmds */
1756 be_cmd_fw_clean(adapter);
1760 static int be_close(struct net_device *netdev)
1762 struct be_adapter *adapter = netdev_priv(netdev);
1763 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1764 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1767 cancel_delayed_work_sync(&adapter->work);
1769 netif_stop_queue(netdev);
1770 netif_carrier_off(netdev);
1771 adapter->link_up = false;
1773 be_intr_set(adapter, false);
1775 if (adapter->msix_enabled) {
1776 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1777 synchronize_irq(vec);
1778 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1779 synchronize_irq(vec);
1781 synchronize_irq(netdev->irq);
1783 be_irq_unregister(adapter);
1785 napi_disable(&rx_eq->napi);
1786 napi_disable(&tx_eq->napi);
1788 /* Wait for all pending tx completions to arrive so that
1789 * all tx skbs are freed.
1791 be_tx_compl_clean(adapter);
1796 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
1797 char flash_cookie[2][16] = {"*** SE FLAS",
1798 "H DIRECTORY *** "};
1800 static bool be_flash_redboot(struct be_adapter *adapter,
1806 crc_offset = FLASH_REDBOOT_START + FLASH_REDBOOT_IMAGE_MAX_SIZE - 4
1807 + sizeof(struct flash_file_hdr) - 32*1024;
1809 status = be_cmd_get_flash_crc(adapter, flashed_crc);
1811 dev_err(&adapter->pdev->dev,
1812 "could not get crc from flash, not flashing redboot\n");
1816 /*update redboot only if crc does not match*/
1817 if (!memcmp(flashed_crc, p, 4))
1824 static int be_flash_image(struct be_adapter *adapter,
1825 const struct firmware *fw,
1826 struct be_dma_mem *flash_cmd, u32 flash_type)
1829 u32 flash_op, image_offset = 0, total_bytes, image_size = 0;
1831 const u8 *p = fw->data;
1832 struct be_cmd_write_flashrom *req = flash_cmd->va;
1834 switch (flash_type) {
1835 case FLASHROM_TYPE_ISCSI_ACTIVE:
1836 image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START;
1837 image_size = FLASH_IMAGE_MAX_SIZE;
1839 case FLASHROM_TYPE_ISCSI_BACKUP:
1840 image_offset = FLASH_iSCSI_BACKUP_IMAGE_START;
1841 image_size = FLASH_IMAGE_MAX_SIZE;
1843 case FLASHROM_TYPE_FCOE_FW_ACTIVE:
1844 image_offset = FLASH_FCoE_PRIMARY_IMAGE_START;
1845 image_size = FLASH_IMAGE_MAX_SIZE;
1847 case FLASHROM_TYPE_FCOE_FW_BACKUP:
1848 image_offset = FLASH_FCoE_BACKUP_IMAGE_START;
1849 image_size = FLASH_IMAGE_MAX_SIZE;
1851 case FLASHROM_TYPE_BIOS:
1852 image_offset = FLASH_iSCSI_BIOS_START;
1853 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1855 case FLASHROM_TYPE_FCOE_BIOS:
1856 image_offset = FLASH_FCoE_BIOS_START;
1857 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1859 case FLASHROM_TYPE_PXE_BIOS:
1860 image_offset = FLASH_PXE_BIOS_START;
1861 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1863 case FLASHROM_TYPE_REDBOOT:
1864 if (!be_flash_redboot(adapter, fw->data))
1866 image_offset = FLASH_REDBOOT_ISM_START;
1867 image_size = FLASH_REDBOOT_IMAGE_MAX_SIZE;
1873 p += sizeof(struct flash_file_hdr) + image_offset;
1874 if (p + image_size > fw->data + fw->size)
1877 total_bytes = image_size;
1879 while (total_bytes) {
1880 if (total_bytes > 32*1024)
1881 num_bytes = 32*1024;
1883 num_bytes = total_bytes;
1884 total_bytes -= num_bytes;
1887 flash_op = FLASHROM_OPER_FLASH;
1889 flash_op = FLASHROM_OPER_SAVE;
1890 memcpy(req->params.data_buf, p, num_bytes);
1892 status = be_cmd_write_flashrom(adapter, flash_cmd,
1893 flash_type, flash_op, num_bytes);
1895 dev_err(&adapter->pdev->dev,
1896 "cmd to write to flash rom failed. type/op %d/%d\n",
1897 flash_type, flash_op);
1906 int be_load_fw(struct be_adapter *adapter, u8 *func)
1908 char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1909 const struct firmware *fw;
1910 struct flash_file_hdr *fhdr;
1911 struct flash_section_info *fsec = NULL;
1912 struct be_dma_mem flash_cmd;
1915 bool entry_found = false;
1917 char fw_ver[FW_VER_LEN];
1920 status = be_cmd_get_fw_ver(adapter, fw_ver);
1924 fw_cfg = *(fw_ver + 2);
1927 strcpy(fw_file, func);
1929 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1934 fhdr = (struct flash_file_hdr *) p;
1935 if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) {
1936 dev_err(&adapter->pdev->dev,
1937 "Firmware(%s) load error (signature did not match)\n",
1943 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1945 p += sizeof(struct flash_file_hdr);
1946 while (p < (fw->data + fw->size)) {
1947 fsec = (struct flash_section_info *)p;
1948 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) {
1957 dev_err(&adapter->pdev->dev,
1958 "Flash cookie not found in firmware image\n");
1962 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1963 flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1965 if (!flash_cmd.va) {
1967 dev_err(&adapter->pdev->dev,
1968 "Memory allocation failure while flashing\n");
1972 for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE;
1973 flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) {
1974 status = be_flash_image(adapter, fw, &flash_cmd,
1980 pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1983 dev_err(&adapter->pdev->dev, "Firmware load error\n");
1987 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
1990 release_firmware(fw);
1994 static struct net_device_ops be_netdev_ops = {
1995 .ndo_open = be_open,
1996 .ndo_stop = be_close,
1997 .ndo_start_xmit = be_xmit,
1998 .ndo_get_stats = be_get_stats,
1999 .ndo_set_rx_mode = be_set_multicast_list,
2000 .ndo_set_mac_address = be_mac_addr_set,
2001 .ndo_change_mtu = be_change_mtu,
2002 .ndo_validate_addr = eth_validate_addr,
2003 .ndo_vlan_rx_register = be_vlan_register,
2004 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2005 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2008 static void be_netdev_init(struct net_device *netdev)
2010 struct be_adapter *adapter = netdev_priv(netdev);
2012 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2013 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
2016 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
2018 netdev->flags |= IFF_MULTICAST;
2020 adapter->rx_csum = true;
2022 /* Default settings for Rx and Tx flow control */
2023 adapter->rx_fc = true;
2024 adapter->tx_fc = true;
2026 netif_set_gso_max_size(netdev, 65535);
2028 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2030 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2032 netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
2034 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2037 netif_carrier_off(netdev);
2038 netif_stop_queue(netdev);
2041 static void be_unmap_pci_bars(struct be_adapter *adapter)
2044 iounmap(adapter->csr);
2046 iounmap(adapter->db);
2047 if (adapter->pcicfg)
2048 iounmap(adapter->pcicfg);
2051 static int be_map_pci_bars(struct be_adapter *adapter)
2055 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2056 pci_resource_len(adapter->pdev, 2));
2059 adapter->csr = addr;
2061 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
2067 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
2068 pci_resource_len(adapter->pdev, 1));
2071 adapter->pcicfg = addr;
2075 be_unmap_pci_bars(adapter);
2080 static void be_ctrl_cleanup(struct be_adapter *adapter)
2082 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2084 be_unmap_pci_bars(adapter);
2087 pci_free_consistent(adapter->pdev, mem->size,
2090 mem = &adapter->mc_cmd_mem;
2092 pci_free_consistent(adapter->pdev, mem->size,
2096 static int be_ctrl_init(struct be_adapter *adapter)
2098 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2099 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2100 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2103 status = be_map_pci_bars(adapter);
2107 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2108 mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2109 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2110 if (!mbox_mem_alloc->va) {
2112 goto unmap_pci_bars;
2115 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2116 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2117 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2118 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2120 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2121 mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2123 if (mc_cmd_mem->va == NULL) {
2127 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2129 spin_lock_init(&adapter->mbox_lock);
2130 spin_lock_init(&adapter->mcc_lock);
2131 spin_lock_init(&adapter->mcc_cq_lock);
2136 pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2137 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2140 be_unmap_pci_bars(adapter);
2146 static void be_stats_cleanup(struct be_adapter *adapter)
2148 struct be_stats_obj *stats = &adapter->stats;
2149 struct be_dma_mem *cmd = &stats->cmd;
2152 pci_free_consistent(adapter->pdev, cmd->size,
2156 static int be_stats_init(struct be_adapter *adapter)
2158 struct be_stats_obj *stats = &adapter->stats;
2159 struct be_dma_mem *cmd = &stats->cmd;
2161 cmd->size = sizeof(struct be_cmd_req_get_stats);
2162 cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2163 if (cmd->va == NULL)
2168 static void __devexit be_remove(struct pci_dev *pdev)
2170 struct be_adapter *adapter = pci_get_drvdata(pdev);
2175 unregister_netdev(adapter->netdev);
2179 be_stats_cleanup(adapter);
2181 be_ctrl_cleanup(adapter);
2183 be_msix_disable(adapter);
2185 pci_set_drvdata(pdev, NULL);
2186 pci_release_regions(pdev);
2187 pci_disable_device(pdev);
2189 free_netdev(adapter->netdev);
2192 static int be_get_config(struct be_adapter *adapter)
2197 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2201 status = be_cmd_query_fw_cfg(adapter,
2202 &adapter->port_num, &adapter->cap);
2206 memset(mac, 0, ETH_ALEN);
2207 status = be_cmd_mac_addr_query(adapter, mac,
2208 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2212 if (!is_valid_ether_addr(mac))
2213 return -EADDRNOTAVAIL;
2215 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2216 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2221 static int __devinit be_probe(struct pci_dev *pdev,
2222 const struct pci_device_id *pdev_id)
2225 struct be_adapter *adapter;
2226 struct net_device *netdev;
2228 status = pci_enable_device(pdev);
2232 status = pci_request_regions(pdev, DRV_NAME);
2235 pci_set_master(pdev);
2237 netdev = alloc_etherdev(sizeof(struct be_adapter));
2238 if (netdev == NULL) {
2242 adapter = netdev_priv(netdev);
2243 adapter->pdev = pdev;
2244 pci_set_drvdata(pdev, adapter);
2245 adapter->netdev = netdev;
2246 be_netdev_init(netdev);
2247 SET_NETDEV_DEV(netdev, &pdev->dev);
2249 be_msix_enable(adapter);
2251 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2253 netdev->features |= NETIF_F_HIGHDMA;
2255 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2257 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2262 status = be_ctrl_init(adapter);
2266 /* sync up with fw's ready state */
2267 status = be_cmd_POST(adapter);
2271 /* tell fw we're ready to fire cmds */
2272 status = be_cmd_fw_init(adapter);
2276 status = be_cmd_reset_function(adapter);
2280 status = be_stats_init(adapter);
2284 status = be_get_config(adapter);
2288 INIT_DELAYED_WORK(&adapter->work, be_worker);
2290 status = be_setup(adapter);
2294 status = register_netdev(netdev);
2298 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2304 be_stats_cleanup(adapter);
2306 be_ctrl_cleanup(adapter);
2308 be_msix_disable(adapter);
2309 free_netdev(adapter->netdev);
2310 pci_set_drvdata(pdev, NULL);
2312 pci_release_regions(pdev);
2314 pci_disable_device(pdev);
2316 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2320 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2322 struct be_adapter *adapter = pci_get_drvdata(pdev);
2323 struct net_device *netdev = adapter->netdev;
2326 be_setup_wol(adapter, true);
2328 netif_device_detach(netdev);
2329 if (netif_running(netdev)) {
2334 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2337 pci_save_state(pdev);
2338 pci_disable_device(pdev);
2339 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2343 static int be_resume(struct pci_dev *pdev)
2346 struct be_adapter *adapter = pci_get_drvdata(pdev);
2347 struct net_device *netdev = adapter->netdev;
2349 netif_device_detach(netdev);
2351 status = pci_enable_device(pdev);
2355 pci_set_power_state(pdev, 0);
2356 pci_restore_state(pdev);
2358 /* tell fw we're ready to fire cmds */
2359 status = be_cmd_fw_init(adapter);
2364 if (netif_running(netdev)) {
2369 netif_device_attach(netdev);
2372 be_setup_wol(adapter, false);
2376 static struct pci_driver be_driver = {
2378 .id_table = be_dev_ids,
2380 .remove = be_remove,
2381 .suspend = be_suspend,
2385 static int __init be_init_module(void)
2387 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
2388 rx_frag_size != 2048) {
2389 printk(KERN_WARNING DRV_NAME
2390 " : Module param rx_frag_size must be 2048/4096/8192."
2392 rx_frag_size = 2048;
2395 return pci_register_driver(&be_driver);
2397 module_init(be_init_module);
2399 static void __exit be_exit_module(void)
2401 pci_unregister_driver(&be_driver);
2403 module_exit(be_exit_module);