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 * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
492 * program them in BE. If more than BE_NUM_VLANS_SUPPORTED are configured,
493 * set the BE in promiscuous VLAN mode.
495 static int be_vid_config(struct be_adapter *adapter)
497 u16 vtag[BE_NUM_VLANS_SUPPORTED];
501 if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED) {
502 /* Construct VLAN Table to give to HW */
503 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
504 if (adapter->vlan_tag[i]) {
505 vtag[ntags] = cpu_to_le16(i);
509 status = be_cmd_vlan_config(adapter, adapter->if_handle,
512 status = be_cmd_vlan_config(adapter, adapter->if_handle,
518 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
520 struct be_adapter *adapter = netdev_priv(netdev);
521 struct be_eq_obj *rx_eq = &adapter->rx_eq;
522 struct be_eq_obj *tx_eq = &adapter->tx_eq;
524 be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
525 be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
526 adapter->vlan_grp = grp;
527 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
528 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
531 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
533 struct be_adapter *adapter = netdev_priv(netdev);
535 adapter->num_vlans++;
536 adapter->vlan_tag[vid] = 1;
538 be_vid_config(adapter);
541 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
543 struct be_adapter *adapter = netdev_priv(netdev);
545 adapter->num_vlans--;
546 adapter->vlan_tag[vid] = 0;
548 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
549 be_vid_config(adapter);
552 static void be_set_multicast_list(struct net_device *netdev)
554 struct be_adapter *adapter = netdev_priv(netdev);
556 if (netdev->flags & IFF_PROMISC) {
557 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
558 adapter->promiscuous = true;
562 /* BE was previously in promiscous mode; disable it */
563 if (adapter->promiscuous) {
564 adapter->promiscuous = false;
565 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
568 /* Enable multicast promisc if num configured exceeds what we support */
569 if (netdev->flags & IFF_ALLMULTI ||
570 netdev_mc_count(netdev) > BE_MAX_MC) {
571 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0,
572 &adapter->mc_cmd_mem);
576 be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
577 netdev_mc_count(netdev), &adapter->mc_cmd_mem);
582 static void be_rx_rate_update(struct be_adapter *adapter)
584 struct be_drvr_stats *stats = drvr_stats(adapter);
588 if (time_before(now, stats->be_rx_jiffies)) {
589 stats->be_rx_jiffies = now;
593 /* Update the rate once in two seconds */
594 if ((now - stats->be_rx_jiffies) < 2 * HZ)
597 stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
598 - stats->be_rx_bytes_prev,
599 now - stats->be_rx_jiffies);
600 stats->be_rx_jiffies = now;
601 stats->be_rx_bytes_prev = stats->be_rx_bytes;
604 static void be_rx_stats_update(struct be_adapter *adapter,
605 u32 pktsize, u16 numfrags)
607 struct be_drvr_stats *stats = drvr_stats(adapter);
609 stats->be_rx_compl++;
610 stats->be_rx_frags += numfrags;
611 stats->be_rx_bytes += pktsize;
614 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
616 u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
618 l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
619 ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
620 ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
622 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
623 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
625 ipv6_chk = (ip_version && (tcpf || udpf));
627 return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
630 static struct be_rx_page_info *
631 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
633 struct be_rx_page_info *rx_page_info;
634 struct be_queue_info *rxq = &adapter->rx_obj.q;
636 rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
637 BUG_ON(!rx_page_info->page);
639 if (rx_page_info->last_page_user) {
640 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
641 adapter->big_page_size, PCI_DMA_FROMDEVICE);
642 rx_page_info->last_page_user = false;
645 atomic_dec(&rxq->used);
649 /* Throwaway the data in the Rx completion */
650 static void be_rx_compl_discard(struct be_adapter *adapter,
651 struct be_eth_rx_compl *rxcp)
653 struct be_queue_info *rxq = &adapter->rx_obj.q;
654 struct be_rx_page_info *page_info;
655 u16 rxq_idx, i, num_rcvd;
657 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
658 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
660 for (i = 0; i < num_rcvd; i++) {
661 page_info = get_rx_page_info(adapter, rxq_idx);
662 put_page(page_info->page);
663 memset(page_info, 0, sizeof(*page_info));
664 index_inc(&rxq_idx, rxq->len);
669 * skb_fill_rx_data forms a complete skb for an ether frame
672 static void skb_fill_rx_data(struct be_adapter *adapter,
673 struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
675 struct be_queue_info *rxq = &adapter->rx_obj.q;
676 struct be_rx_page_info *page_info;
677 u16 rxq_idx, i, num_rcvd, j;
678 u32 pktsize, hdr_len, curr_frag_len, size;
681 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
682 pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
683 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
685 page_info = get_rx_page_info(adapter, rxq_idx);
687 start = page_address(page_info->page) + page_info->page_offset;
690 /* Copy data in the first descriptor of this completion */
691 curr_frag_len = min(pktsize, rx_frag_size);
693 /* Copy the header portion into skb_data */
694 hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
695 memcpy(skb->data, start, hdr_len);
696 skb->len = curr_frag_len;
697 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
698 /* Complete packet has now been moved to data */
699 put_page(page_info->page);
701 skb->tail += curr_frag_len;
703 skb_shinfo(skb)->nr_frags = 1;
704 skb_shinfo(skb)->frags[0].page = page_info->page;
705 skb_shinfo(skb)->frags[0].page_offset =
706 page_info->page_offset + hdr_len;
707 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
708 skb->data_len = curr_frag_len - hdr_len;
709 skb->tail += hdr_len;
711 page_info->page = NULL;
713 if (pktsize <= rx_frag_size) {
714 BUG_ON(num_rcvd != 1);
718 /* More frags present for this completion */
720 for (i = 1, j = 0; i < num_rcvd; i++) {
721 size -= curr_frag_len;
722 index_inc(&rxq_idx, rxq->len);
723 page_info = get_rx_page_info(adapter, rxq_idx);
725 curr_frag_len = min(size, rx_frag_size);
727 /* Coalesce all frags from the same physical page in one slot */
728 if (page_info->page_offset == 0) {
731 skb_shinfo(skb)->frags[j].page = page_info->page;
732 skb_shinfo(skb)->frags[j].page_offset =
733 page_info->page_offset;
734 skb_shinfo(skb)->frags[j].size = 0;
735 skb_shinfo(skb)->nr_frags++;
737 put_page(page_info->page);
740 skb_shinfo(skb)->frags[j].size += curr_frag_len;
741 skb->len += curr_frag_len;
742 skb->data_len += curr_frag_len;
744 page_info->page = NULL;
746 BUG_ON(j > MAX_SKB_FRAGS);
749 be_rx_stats_update(adapter, pktsize, num_rcvd);
753 /* Process the RX completion indicated by rxcp when GRO is disabled */
754 static void be_rx_compl_process(struct be_adapter *adapter,
755 struct be_eth_rx_compl *rxcp)
761 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
762 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
764 /* vlanf could be wrongly set in some cards.
765 * ignore if vtm is not set */
766 if ((adapter->cap & 0x400) && !vtm)
769 skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
772 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
773 be_rx_compl_discard(adapter, rxcp);
777 skb_fill_rx_data(adapter, skb, rxcp);
779 if (do_pkt_csum(rxcp, adapter->rx_csum))
780 skb->ip_summed = CHECKSUM_NONE;
782 skb->ip_summed = CHECKSUM_UNNECESSARY;
784 skb->truesize = skb->len + sizeof(struct sk_buff);
785 skb->protocol = eth_type_trans(skb, adapter->netdev);
786 skb->dev = adapter->netdev;
789 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
793 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
794 vid = be16_to_cpu(vid);
795 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
797 netif_receive_skb(skb);
803 /* Process the RX completion indicated by rxcp when GRO is enabled */
804 static void be_rx_compl_process_gro(struct be_adapter *adapter,
805 struct be_eth_rx_compl *rxcp)
807 struct be_rx_page_info *page_info;
808 struct sk_buff *skb = NULL;
809 struct be_queue_info *rxq = &adapter->rx_obj.q;
810 struct be_eq_obj *eq_obj = &adapter->rx_eq;
811 u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
812 u16 i, rxq_idx = 0, vid, j;
815 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
816 pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
817 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
818 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
819 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
821 /* vlanf could be wrongly set in some cards.
822 * ignore if vtm is not set */
823 if ((adapter->cap & 0x400) && !vtm)
826 skb = napi_get_frags(&eq_obj->napi);
828 be_rx_compl_discard(adapter, rxcp);
832 remaining = pkt_size;
833 for (i = 0, j = -1; i < num_rcvd; i++) {
834 page_info = get_rx_page_info(adapter, rxq_idx);
836 curr_frag_len = min(remaining, rx_frag_size);
838 /* Coalesce all frags from the same physical page in one slot */
839 if (i == 0 || page_info->page_offset == 0) {
840 /* First frag or Fresh page */
842 skb_shinfo(skb)->frags[j].page = page_info->page;
843 skb_shinfo(skb)->frags[j].page_offset =
844 page_info->page_offset;
845 skb_shinfo(skb)->frags[j].size = 0;
847 put_page(page_info->page);
849 skb_shinfo(skb)->frags[j].size += curr_frag_len;
851 remaining -= curr_frag_len;
852 index_inc(&rxq_idx, rxq->len);
853 memset(page_info, 0, sizeof(*page_info));
855 BUG_ON(j > MAX_SKB_FRAGS);
857 skb_shinfo(skb)->nr_frags = j + 1;
859 skb->data_len = pkt_size;
860 skb->truesize += pkt_size;
861 skb->ip_summed = CHECKSUM_UNNECESSARY;
863 if (likely(!vlanf)) {
864 napi_gro_frags(&eq_obj->napi);
866 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
867 vid = be16_to_cpu(vid);
869 if (!adapter->vlan_grp || adapter->num_vlans == 0)
872 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
875 be_rx_stats_update(adapter, pkt_size, num_rcvd);
879 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
881 struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
883 if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
886 be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
888 queue_tail_inc(&adapter->rx_obj.cq);
892 /* To reset the valid bit, we need to reset the whole word as
893 * when walking the queue the valid entries are little-endian
894 * and invalid entries are host endian
896 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
898 rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
901 static inline struct page *be_alloc_pages(u32 size)
903 gfp_t alloc_flags = GFP_ATOMIC;
904 u32 order = get_order(size);
906 alloc_flags |= __GFP_COMP;
907 return alloc_pages(alloc_flags, order);
911 * Allocate a page, split it to fragments of size rx_frag_size and post as
912 * receive buffers to BE
914 static void be_post_rx_frags(struct be_adapter *adapter)
916 struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
917 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
918 struct be_queue_info *rxq = &adapter->rx_obj.q;
919 struct page *pagep = NULL;
920 struct be_eth_rx_d *rxd;
921 u64 page_dmaaddr = 0, frag_dmaaddr;
922 u32 posted, page_offset = 0;
924 page_info = &page_info_tbl[rxq->head];
925 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
927 pagep = be_alloc_pages(adapter->big_page_size);
928 if (unlikely(!pagep)) {
929 drvr_stats(adapter)->be_ethrx_post_fail++;
932 page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
933 adapter->big_page_size,
935 page_info->page_offset = 0;
938 page_info->page_offset = page_offset + rx_frag_size;
940 page_offset = page_info->page_offset;
941 page_info->page = pagep;
942 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
943 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
945 rxd = queue_head_node(rxq);
946 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
947 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
949 /* Any space left in the current big page for another frag? */
950 if ((page_offset + rx_frag_size + rx_frag_size) >
951 adapter->big_page_size) {
953 page_info->last_page_user = true;
956 prev_page_info = page_info;
958 page_info = &page_info_tbl[rxq->head];
961 prev_page_info->last_page_user = true;
964 atomic_add(posted, &rxq->used);
965 be_rxq_notify(adapter, rxq->id, posted);
966 } else if (atomic_read(&rxq->used) == 0) {
967 /* Let be_worker replenish when memory is available */
968 adapter->rx_post_starved = true;
974 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
976 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
978 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
981 be_dws_le_to_cpu(txcp, sizeof(*txcp));
983 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
985 queue_tail_inc(tx_cq);
989 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
991 struct be_queue_info *txq = &adapter->tx_obj.q;
992 struct be_eth_wrb *wrb;
993 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
994 struct sk_buff *sent_skb;
996 u16 cur_index, num_wrbs = 0;
998 cur_index = txq->tail;
999 sent_skb = sent_skbs[cur_index];
1001 sent_skbs[cur_index] = NULL;
1002 wrb = queue_tail_node(txq);
1003 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1004 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1006 pci_unmap_single(adapter->pdev, busaddr,
1007 wrb->frag_len, PCI_DMA_TODEVICE);
1010 queue_tail_inc(txq);
1012 while (cur_index != last_index) {
1013 cur_index = txq->tail;
1014 wrb = queue_tail_node(txq);
1015 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1016 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1018 pci_unmap_page(adapter->pdev, busaddr,
1019 wrb->frag_len, PCI_DMA_TODEVICE);
1022 queue_tail_inc(txq);
1025 atomic_sub(num_wrbs, &txq->used);
1027 kfree_skb(sent_skb);
1030 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1032 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1037 eqe->evt = le32_to_cpu(eqe->evt);
1038 queue_tail_inc(&eq_obj->q);
1042 static int event_handle(struct be_adapter *adapter,
1043 struct be_eq_obj *eq_obj)
1045 struct be_eq_entry *eqe;
1048 while ((eqe = event_get(eq_obj)) != NULL) {
1053 /* Deal with any spurious interrupts that come
1056 be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1058 napi_schedule(&eq_obj->napi);
1063 /* Just read and notify events without processing them.
1064 * Used at the time of destroying event queues */
1065 static void be_eq_clean(struct be_adapter *adapter,
1066 struct be_eq_obj *eq_obj)
1068 struct be_eq_entry *eqe;
1071 while ((eqe = event_get(eq_obj)) != NULL) {
1077 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1080 static void be_rx_q_clean(struct be_adapter *adapter)
1082 struct be_rx_page_info *page_info;
1083 struct be_queue_info *rxq = &adapter->rx_obj.q;
1084 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1085 struct be_eth_rx_compl *rxcp;
1088 /* First cleanup pending rx completions */
1089 while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1090 be_rx_compl_discard(adapter, rxcp);
1091 be_rx_compl_reset(rxcp);
1092 be_cq_notify(adapter, rx_cq->id, true, 1);
1095 /* Then free posted rx buffer that were not used */
1096 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1097 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1098 page_info = get_rx_page_info(adapter, tail);
1099 put_page(page_info->page);
1100 memset(page_info, 0, sizeof(*page_info));
1102 BUG_ON(atomic_read(&rxq->used));
1105 static void be_tx_compl_clean(struct be_adapter *adapter)
1107 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1108 struct be_queue_info *txq = &adapter->tx_obj.q;
1109 struct be_eth_tx_compl *txcp;
1110 u16 end_idx, cmpl = 0, timeo = 0;
1112 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1114 while ((txcp = be_tx_compl_get(tx_cq))) {
1115 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1117 be_tx_compl_process(adapter, end_idx);
1121 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1125 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1131 if (atomic_read(&txq->used))
1132 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1133 atomic_read(&txq->used));
1136 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1138 struct be_queue_info *q;
1140 q = &adapter->mcc_obj.q;
1142 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1143 be_queue_free(adapter, q);
1145 q = &adapter->mcc_obj.cq;
1147 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1148 be_queue_free(adapter, q);
1151 /* Must be called only after TX qs are created as MCC shares TX EQ */
1152 static int be_mcc_queues_create(struct be_adapter *adapter)
1154 struct be_queue_info *q, *cq;
1156 /* Alloc MCC compl queue */
1157 cq = &adapter->mcc_obj.cq;
1158 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1159 sizeof(struct be_mcc_compl)))
1162 /* Ask BE to create MCC compl queue; share TX's eq */
1163 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1166 /* Alloc MCC queue */
1167 q = &adapter->mcc_obj.q;
1168 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1169 goto mcc_cq_destroy;
1171 /* Ask BE to create MCC queue */
1172 if (be_cmd_mccq_create(adapter, q, cq))
1178 be_queue_free(adapter, q);
1180 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1182 be_queue_free(adapter, cq);
1187 static void be_tx_queues_destroy(struct be_adapter *adapter)
1189 struct be_queue_info *q;
1191 q = &adapter->tx_obj.q;
1193 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1194 be_queue_free(adapter, q);
1196 q = &adapter->tx_obj.cq;
1198 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1199 be_queue_free(adapter, q);
1201 /* Clear any residual events */
1202 be_eq_clean(adapter, &adapter->tx_eq);
1204 q = &adapter->tx_eq.q;
1206 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1207 be_queue_free(adapter, q);
1210 static int be_tx_queues_create(struct be_adapter *adapter)
1212 struct be_queue_info *eq, *q, *cq;
1214 adapter->tx_eq.max_eqd = 0;
1215 adapter->tx_eq.min_eqd = 0;
1216 adapter->tx_eq.cur_eqd = 96;
1217 adapter->tx_eq.enable_aic = false;
1218 /* Alloc Tx Event queue */
1219 eq = &adapter->tx_eq.q;
1220 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1223 /* Ask BE to create Tx Event queue */
1224 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1226 /* Alloc TX eth compl queue */
1227 cq = &adapter->tx_obj.cq;
1228 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1229 sizeof(struct be_eth_tx_compl)))
1232 /* Ask BE to create Tx eth compl queue */
1233 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1236 /* Alloc TX eth queue */
1237 q = &adapter->tx_obj.q;
1238 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1241 /* Ask BE to create Tx eth queue */
1242 if (be_cmd_txq_create(adapter, q, cq))
1247 be_queue_free(adapter, q);
1249 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1251 be_queue_free(adapter, cq);
1253 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1255 be_queue_free(adapter, eq);
1259 static void be_rx_queues_destroy(struct be_adapter *adapter)
1261 struct be_queue_info *q;
1263 q = &adapter->rx_obj.q;
1265 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1266 be_rx_q_clean(adapter);
1268 be_queue_free(adapter, q);
1270 q = &adapter->rx_obj.cq;
1272 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1273 be_queue_free(adapter, q);
1275 /* Clear any residual events */
1276 be_eq_clean(adapter, &adapter->rx_eq);
1278 q = &adapter->rx_eq.q;
1280 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1281 be_queue_free(adapter, q);
1284 static int be_rx_queues_create(struct be_adapter *adapter)
1286 struct be_queue_info *eq, *q, *cq;
1289 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1290 adapter->rx_eq.max_eqd = BE_MAX_EQD;
1291 adapter->rx_eq.min_eqd = 0;
1292 adapter->rx_eq.cur_eqd = 0;
1293 adapter->rx_eq.enable_aic = true;
1295 /* Alloc Rx Event queue */
1296 eq = &adapter->rx_eq.q;
1297 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1298 sizeof(struct be_eq_entry));
1302 /* Ask BE to create Rx Event queue */
1303 rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1307 /* Alloc RX eth compl queue */
1308 cq = &adapter->rx_obj.cq;
1309 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1310 sizeof(struct be_eth_rx_compl));
1314 /* Ask BE to create Rx eth compl queue */
1315 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1319 /* Alloc RX eth queue */
1320 q = &adapter->rx_obj.q;
1321 rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1325 /* Ask BE to create Rx eth queue */
1326 rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1327 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1333 be_queue_free(adapter, q);
1335 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1337 be_queue_free(adapter, cq);
1339 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1341 be_queue_free(adapter, eq);
1345 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1346 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1348 return eq_id - 8 * be_pci_func(adapter);
1351 static irqreturn_t be_intx(int irq, void *dev)
1353 struct be_adapter *adapter = dev;
1356 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1357 (adapter->tx_eq.q.id/ 8) * CEV_ISR_SIZE);
1361 event_handle(adapter, &adapter->tx_eq);
1362 event_handle(adapter, &adapter->rx_eq);
1367 static irqreturn_t be_msix_rx(int irq, void *dev)
1369 struct be_adapter *adapter = dev;
1371 event_handle(adapter, &adapter->rx_eq);
1376 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1378 struct be_adapter *adapter = dev;
1380 event_handle(adapter, &adapter->tx_eq);
1385 static inline bool do_gro(struct be_adapter *adapter,
1386 struct be_eth_rx_compl *rxcp)
1388 int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1389 int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1392 drvr_stats(adapter)->be_rxcp_err++;
1394 return (tcp_frame && !err) ? true : false;
1397 int be_poll_rx(struct napi_struct *napi, int budget)
1399 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1400 struct be_adapter *adapter =
1401 container_of(rx_eq, struct be_adapter, rx_eq);
1402 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1403 struct be_eth_rx_compl *rxcp;
1406 adapter->stats.drvr_stats.be_rx_polls++;
1407 for (work_done = 0; work_done < budget; work_done++) {
1408 rxcp = be_rx_compl_get(adapter);
1412 if (do_gro(adapter, rxcp))
1413 be_rx_compl_process_gro(adapter, rxcp);
1415 be_rx_compl_process(adapter, rxcp);
1417 be_rx_compl_reset(rxcp);
1420 /* Refill the queue */
1421 if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1422 be_post_rx_frags(adapter);
1425 if (work_done < budget) {
1426 napi_complete(napi);
1427 be_cq_notify(adapter, rx_cq->id, true, work_done);
1429 /* More to be consumed; continue with interrupts disabled */
1430 be_cq_notify(adapter, rx_cq->id, false, work_done);
1435 void be_process_tx(struct be_adapter *adapter)
1437 struct be_queue_info *txq = &adapter->tx_obj.q;
1438 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1439 struct be_eth_tx_compl *txcp;
1443 while ((txcp = be_tx_compl_get(tx_cq))) {
1444 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1446 be_tx_compl_process(adapter, end_idx);
1451 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1453 /* As Tx wrbs have been freed up, wake up netdev queue if
1454 * it was stopped due to lack of tx wrbs.
1456 if (netif_queue_stopped(adapter->netdev) &&
1457 atomic_read(&txq->used) < txq->len / 2) {
1458 netif_wake_queue(adapter->netdev);
1461 drvr_stats(adapter)->be_tx_events++;
1462 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1466 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1467 * For TX/MCC we don't honour budget; consume everything
1469 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1471 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1472 struct be_adapter *adapter =
1473 container_of(tx_eq, struct be_adapter, tx_eq);
1475 napi_complete(napi);
1477 be_process_tx(adapter);
1479 be_process_mcc(adapter);
1484 static void be_worker(struct work_struct *work)
1486 struct be_adapter *adapter =
1487 container_of(work, struct be_adapter, work.work);
1489 be_cmd_get_stats(adapter, &adapter->stats.cmd);
1492 be_rx_eqd_update(adapter);
1494 be_tx_rate_update(adapter);
1495 be_rx_rate_update(adapter);
1497 if (adapter->rx_post_starved) {
1498 adapter->rx_post_starved = false;
1499 be_post_rx_frags(adapter);
1502 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1505 static void be_msix_disable(struct be_adapter *adapter)
1507 if (adapter->msix_enabled) {
1508 pci_disable_msix(adapter->pdev);
1509 adapter->msix_enabled = false;
1513 static void be_msix_enable(struct be_adapter *adapter)
1517 for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1518 adapter->msix_entries[i].entry = i;
1520 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1521 BE_NUM_MSIX_VECTORS);
1523 adapter->msix_enabled = true;
1527 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1529 return adapter->msix_entries[
1530 be_evt_bit_get(adapter, eq_id)].vector;
1533 static int be_request_irq(struct be_adapter *adapter,
1534 struct be_eq_obj *eq_obj,
1535 void *handler, char *desc)
1537 struct net_device *netdev = adapter->netdev;
1540 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1541 vec = be_msix_vec_get(adapter, eq_obj->q.id);
1542 return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1545 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1547 int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1548 free_irq(vec, adapter);
1551 static int be_msix_register(struct be_adapter *adapter)
1555 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1559 status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1566 be_free_irq(adapter, &adapter->tx_eq);
1568 dev_warn(&adapter->pdev->dev,
1569 "MSIX Request IRQ failed - err %d\n", status);
1570 pci_disable_msix(adapter->pdev);
1571 adapter->msix_enabled = false;
1575 static int be_irq_register(struct be_adapter *adapter)
1577 struct net_device *netdev = adapter->netdev;
1580 if (adapter->msix_enabled) {
1581 status = be_msix_register(adapter);
1587 netdev->irq = adapter->pdev->irq;
1588 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1591 dev_err(&adapter->pdev->dev,
1592 "INTx request IRQ failed - err %d\n", status);
1596 adapter->isr_registered = true;
1600 static void be_irq_unregister(struct be_adapter *adapter)
1602 struct net_device *netdev = adapter->netdev;
1604 if (!adapter->isr_registered)
1608 if (!adapter->msix_enabled) {
1609 free_irq(netdev->irq, adapter);
1614 be_free_irq(adapter, &adapter->tx_eq);
1615 be_free_irq(adapter, &adapter->rx_eq);
1617 adapter->isr_registered = false;
1621 static int be_open(struct net_device *netdev)
1623 struct be_adapter *adapter = netdev_priv(netdev);
1624 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1625 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1631 /* First time posting */
1632 be_post_rx_frags(adapter);
1634 napi_enable(&rx_eq->napi);
1635 napi_enable(&tx_eq->napi);
1637 be_irq_register(adapter);
1639 be_intr_set(adapter, true);
1641 /* The evt queues are created in unarmed state; arm them */
1642 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1643 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1645 /* Rx compl queue may be in unarmed state; rearm it */
1646 be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1648 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
1652 be_link_status_update(adapter, link_up);
1654 status = be_vid_config(adapter);
1658 status = be_cmd_set_flow_control(adapter,
1659 adapter->tx_fc, adapter->rx_fc);
1663 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1668 static int be_setup_wol(struct be_adapter *adapter, bool enable)
1670 struct be_dma_mem cmd;
1674 memset(mac, 0, ETH_ALEN);
1676 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
1677 cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
1680 memset(cmd.va, 0, cmd.size);
1683 status = pci_write_config_dword(adapter->pdev,
1684 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
1686 dev_err(&adapter->pdev->dev,
1687 "Could not enable Wake-on-lan \n");
1688 pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
1692 status = be_cmd_enable_magic_wol(adapter,
1693 adapter->netdev->dev_addr, &cmd);
1694 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
1695 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
1697 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
1698 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
1699 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
1702 pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
1706 static int be_setup(struct be_adapter *adapter)
1708 struct net_device *netdev = adapter->netdev;
1709 u32 cap_flags, en_flags;
1712 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1713 BE_IF_FLAGS_MCAST_PROMISCUOUS |
1714 BE_IF_FLAGS_PROMISCUOUS |
1715 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1716 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1717 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1719 status = be_cmd_if_create(adapter, cap_flags, en_flags,
1720 netdev->dev_addr, false/* pmac_invalid */,
1721 &adapter->if_handle, &adapter->pmac_id);
1725 status = be_tx_queues_create(adapter);
1729 status = be_rx_queues_create(adapter);
1733 status = be_mcc_queues_create(adapter);
1737 adapter->link_speed = -1;
1742 be_rx_queues_destroy(adapter);
1744 be_tx_queues_destroy(adapter);
1746 be_cmd_if_destroy(adapter, adapter->if_handle);
1751 static int be_clear(struct be_adapter *adapter)
1753 be_mcc_queues_destroy(adapter);
1754 be_rx_queues_destroy(adapter);
1755 be_tx_queues_destroy(adapter);
1757 be_cmd_if_destroy(adapter, adapter->if_handle);
1759 /* tell fw we're done with firing cmds */
1760 be_cmd_fw_clean(adapter);
1764 static int be_close(struct net_device *netdev)
1766 struct be_adapter *adapter = netdev_priv(netdev);
1767 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1768 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1771 cancel_delayed_work_sync(&adapter->work);
1773 netif_stop_queue(netdev);
1774 netif_carrier_off(netdev);
1775 adapter->link_up = false;
1777 be_intr_set(adapter, false);
1779 if (adapter->msix_enabled) {
1780 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1781 synchronize_irq(vec);
1782 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1783 synchronize_irq(vec);
1785 synchronize_irq(netdev->irq);
1787 be_irq_unregister(adapter);
1789 napi_disable(&rx_eq->napi);
1790 napi_disable(&tx_eq->napi);
1792 /* Wait for all pending tx completions to arrive so that
1793 * all tx skbs are freed.
1795 be_tx_compl_clean(adapter);
1800 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
1801 char flash_cookie[2][16] = {"*** SE FLAS",
1802 "H DIRECTORY *** "};
1804 static bool be_flash_redboot(struct be_adapter *adapter,
1805 const u8 *p, u32 img_start, int image_size,
1812 crc_offset = hdr_size + img_start + image_size - 4;
1816 status = be_cmd_get_flash_crc(adapter, flashed_crc,
1817 (img_start + image_size - 4));
1819 dev_err(&adapter->pdev->dev,
1820 "could not get crc from flash, not flashing redboot\n");
1824 /*update redboot only if crc does not match*/
1825 if (!memcmp(flashed_crc, p, 4))
1831 static int be_flash_data(struct be_adapter *adapter,
1832 const struct firmware *fw,
1833 struct be_dma_mem *flash_cmd, int num_of_images)
1836 int status = 0, i, filehdr_size = 0;
1837 u32 total_bytes = 0, flash_op;
1839 const u8 *p = fw->data;
1840 struct be_cmd_write_flashrom *req = flash_cmd->va;
1841 struct flash_comp *pflashcomp;
1843 struct flash_comp gen3_flash_types[8] = {
1844 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
1845 FLASH_IMAGE_MAX_SIZE_g3},
1846 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
1847 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
1848 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
1849 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1850 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
1851 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1852 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
1853 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1854 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
1855 FLASH_IMAGE_MAX_SIZE_g3},
1856 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
1857 FLASH_IMAGE_MAX_SIZE_g3},
1858 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
1859 FLASH_IMAGE_MAX_SIZE_g3}
1861 struct flash_comp gen2_flash_types[8] = {
1862 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
1863 FLASH_IMAGE_MAX_SIZE_g2},
1864 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
1865 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
1866 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
1867 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1868 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
1869 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1870 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
1871 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1872 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
1873 FLASH_IMAGE_MAX_SIZE_g2},
1874 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
1875 FLASH_IMAGE_MAX_SIZE_g2},
1876 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
1877 FLASH_IMAGE_MAX_SIZE_g2}
1880 if (adapter->generation == BE_GEN3) {
1881 pflashcomp = gen3_flash_types;
1882 filehdr_size = sizeof(struct flash_file_hdr_g3);
1884 pflashcomp = gen2_flash_types;
1885 filehdr_size = sizeof(struct flash_file_hdr_g2);
1887 for (i = 0; i < 8; i++) {
1888 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
1889 (!be_flash_redboot(adapter, fw->data,
1890 pflashcomp[i].offset, pflashcomp[i].size,
1894 p += filehdr_size + pflashcomp[i].offset
1895 + (num_of_images * sizeof(struct image_hdr));
1896 if (p + pflashcomp[i].size > fw->data + fw->size)
1898 total_bytes = pflashcomp[i].size;
1899 while (total_bytes) {
1900 if (total_bytes > 32*1024)
1901 num_bytes = 32*1024;
1903 num_bytes = total_bytes;
1904 total_bytes -= num_bytes;
1907 flash_op = FLASHROM_OPER_FLASH;
1909 flash_op = FLASHROM_OPER_SAVE;
1910 memcpy(req->params.data_buf, p, num_bytes);
1912 status = be_cmd_write_flashrom(adapter, flash_cmd,
1913 pflashcomp[i].optype, flash_op, num_bytes);
1915 dev_err(&adapter->pdev->dev,
1916 "cmd to write to flash rom failed.\n");
1925 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
1929 if (fhdr->build[0] == '3')
1931 else if (fhdr->build[0] == '2')
1937 int be_load_fw(struct be_adapter *adapter, u8 *func)
1939 char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1940 const struct firmware *fw;
1941 struct flash_file_hdr_g2 *fhdr;
1942 struct flash_file_hdr_g3 *fhdr3;
1943 struct image_hdr *img_hdr_ptr = NULL;
1944 struct be_dma_mem flash_cmd;
1947 char fw_ver[FW_VER_LEN];
1950 status = be_cmd_get_fw_ver(adapter, fw_ver);
1954 fw_cfg = *(fw_ver + 2);
1957 strcpy(fw_file, func);
1959 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1964 fhdr = (struct flash_file_hdr_g2 *) p;
1965 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1967 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1968 flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1970 if (!flash_cmd.va) {
1972 dev_err(&adapter->pdev->dev,
1973 "Memory allocation failure while flashing\n");
1977 if ((adapter->generation == BE_GEN3) &&
1978 (get_ufigen_type(fhdr) == BE_GEN3)) {
1979 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
1980 for (i = 0; i < fhdr3->num_imgs; i++) {
1981 img_hdr_ptr = (struct image_hdr *) (fw->data +
1982 (sizeof(struct flash_file_hdr_g3) +
1983 i * sizeof(struct image_hdr)));
1984 if (img_hdr_ptr->imageid == 1) {
1985 status = be_flash_data(adapter, fw,
1986 &flash_cmd, fhdr3->num_imgs);
1990 } else if ((adapter->generation == BE_GEN2) &&
1991 (get_ufigen_type(fhdr) == BE_GEN2)) {
1992 status = be_flash_data(adapter, fw, &flash_cmd, 0);
1994 dev_err(&adapter->pdev->dev,
1995 "UFI and Interface are not compatible for flashing\n");
1999 pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
2002 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2006 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2009 release_firmware(fw);
2013 static struct net_device_ops be_netdev_ops = {
2014 .ndo_open = be_open,
2015 .ndo_stop = be_close,
2016 .ndo_start_xmit = be_xmit,
2017 .ndo_get_stats = be_get_stats,
2018 .ndo_set_rx_mode = be_set_multicast_list,
2019 .ndo_set_mac_address = be_mac_addr_set,
2020 .ndo_change_mtu = be_change_mtu,
2021 .ndo_validate_addr = eth_validate_addr,
2022 .ndo_vlan_rx_register = be_vlan_register,
2023 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2024 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2027 static void be_netdev_init(struct net_device *netdev)
2029 struct be_adapter *adapter = netdev_priv(netdev);
2031 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2032 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
2035 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
2037 netdev->flags |= IFF_MULTICAST;
2039 adapter->rx_csum = true;
2041 /* Default settings for Rx and Tx flow control */
2042 adapter->rx_fc = true;
2043 adapter->tx_fc = true;
2045 netif_set_gso_max_size(netdev, 65535);
2047 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2049 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2051 netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
2053 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2056 netif_carrier_off(netdev);
2057 netif_stop_queue(netdev);
2060 static void be_unmap_pci_bars(struct be_adapter *adapter)
2063 iounmap(adapter->csr);
2065 iounmap(adapter->db);
2066 if (adapter->pcicfg)
2067 iounmap(adapter->pcicfg);
2070 static int be_map_pci_bars(struct be_adapter *adapter)
2075 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2076 pci_resource_len(adapter->pdev, 2));
2079 adapter->csr = addr;
2081 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
2087 if (adapter->generation == BE_GEN2)
2092 addr = ioremap_nocache(pci_resource_start(adapter->pdev, pcicfg_reg),
2093 pci_resource_len(adapter->pdev, pcicfg_reg));
2096 adapter->pcicfg = addr;
2100 be_unmap_pci_bars(adapter);
2105 static void be_ctrl_cleanup(struct be_adapter *adapter)
2107 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2109 be_unmap_pci_bars(adapter);
2112 pci_free_consistent(adapter->pdev, mem->size,
2115 mem = &adapter->mc_cmd_mem;
2117 pci_free_consistent(adapter->pdev, mem->size,
2121 static int be_ctrl_init(struct be_adapter *adapter)
2123 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2124 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2125 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2128 status = be_map_pci_bars(adapter);
2132 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2133 mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2134 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2135 if (!mbox_mem_alloc->va) {
2137 goto unmap_pci_bars;
2140 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2141 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2142 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2143 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2145 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2146 mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2148 if (mc_cmd_mem->va == NULL) {
2152 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2154 spin_lock_init(&adapter->mbox_lock);
2155 spin_lock_init(&adapter->mcc_lock);
2156 spin_lock_init(&adapter->mcc_cq_lock);
2161 pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2162 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2165 be_unmap_pci_bars(adapter);
2171 static void be_stats_cleanup(struct be_adapter *adapter)
2173 struct be_stats_obj *stats = &adapter->stats;
2174 struct be_dma_mem *cmd = &stats->cmd;
2177 pci_free_consistent(adapter->pdev, cmd->size,
2181 static int be_stats_init(struct be_adapter *adapter)
2183 struct be_stats_obj *stats = &adapter->stats;
2184 struct be_dma_mem *cmd = &stats->cmd;
2186 cmd->size = sizeof(struct be_cmd_req_get_stats);
2187 cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2188 if (cmd->va == NULL)
2190 memset(cmd->va, 0, cmd->size);
2194 static void __devexit be_remove(struct pci_dev *pdev)
2196 struct be_adapter *adapter = pci_get_drvdata(pdev);
2201 unregister_netdev(adapter->netdev);
2205 be_stats_cleanup(adapter);
2207 be_ctrl_cleanup(adapter);
2209 be_msix_disable(adapter);
2211 pci_set_drvdata(pdev, NULL);
2212 pci_release_regions(pdev);
2213 pci_disable_device(pdev);
2215 free_netdev(adapter->netdev);
2218 static int be_get_config(struct be_adapter *adapter)
2223 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2227 status = be_cmd_query_fw_cfg(adapter,
2228 &adapter->port_num, &adapter->cap);
2232 memset(mac, 0, ETH_ALEN);
2233 status = be_cmd_mac_addr_query(adapter, mac,
2234 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2238 if (!is_valid_ether_addr(mac))
2239 return -EADDRNOTAVAIL;
2241 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2242 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2247 static int __devinit be_probe(struct pci_dev *pdev,
2248 const struct pci_device_id *pdev_id)
2251 struct be_adapter *adapter;
2252 struct net_device *netdev;
2254 status = pci_enable_device(pdev);
2258 status = pci_request_regions(pdev, DRV_NAME);
2261 pci_set_master(pdev);
2263 netdev = alloc_etherdev(sizeof(struct be_adapter));
2264 if (netdev == NULL) {
2268 adapter = netdev_priv(netdev);
2270 switch (pdev->device) {
2273 adapter->generation = BE_GEN2;
2277 adapter->generation = BE_GEN3;
2280 adapter->generation = 0;
2283 adapter->pdev = pdev;
2284 pci_set_drvdata(pdev, adapter);
2285 adapter->netdev = netdev;
2286 be_netdev_init(netdev);
2287 SET_NETDEV_DEV(netdev, &pdev->dev);
2289 be_msix_enable(adapter);
2291 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2293 netdev->features |= NETIF_F_HIGHDMA;
2295 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2297 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2302 status = be_ctrl_init(adapter);
2306 /* sync up with fw's ready state */
2307 status = be_cmd_POST(adapter);
2311 /* tell fw we're ready to fire cmds */
2312 status = be_cmd_fw_init(adapter);
2316 status = be_cmd_reset_function(adapter);
2320 status = be_stats_init(adapter);
2324 status = be_get_config(adapter);
2328 INIT_DELAYED_WORK(&adapter->work, be_worker);
2330 status = be_setup(adapter);
2334 status = register_netdev(netdev);
2338 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2344 be_stats_cleanup(adapter);
2346 be_ctrl_cleanup(adapter);
2348 be_msix_disable(adapter);
2349 free_netdev(adapter->netdev);
2350 pci_set_drvdata(pdev, NULL);
2352 pci_release_regions(pdev);
2354 pci_disable_device(pdev);
2356 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2360 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2362 struct be_adapter *adapter = pci_get_drvdata(pdev);
2363 struct net_device *netdev = adapter->netdev;
2366 be_setup_wol(adapter, true);
2368 netif_device_detach(netdev);
2369 if (netif_running(netdev)) {
2374 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2377 pci_save_state(pdev);
2378 pci_disable_device(pdev);
2379 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2383 static int be_resume(struct pci_dev *pdev)
2386 struct be_adapter *adapter = pci_get_drvdata(pdev);
2387 struct net_device *netdev = adapter->netdev;
2389 netif_device_detach(netdev);
2391 status = pci_enable_device(pdev);
2395 pci_set_power_state(pdev, 0);
2396 pci_restore_state(pdev);
2398 /* tell fw we're ready to fire cmds */
2399 status = be_cmd_fw_init(adapter);
2404 if (netif_running(netdev)) {
2409 netif_device_attach(netdev);
2412 be_setup_wol(adapter, false);
2416 static struct pci_driver be_driver = {
2418 .id_table = be_dev_ids,
2420 .remove = be_remove,
2421 .suspend = be_suspend,
2425 static int __init be_init_module(void)
2427 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
2428 rx_frag_size != 2048) {
2429 printk(KERN_WARNING DRV_NAME
2430 " : Module param rx_frag_size must be 2048/4096/8192."
2432 rx_frag_size = 2048;
2435 return pci_register_driver(&be_driver);
2437 module_init(be_init_module);
2439 static void __exit be_exit_module(void)
2441 pci_unregister_driver(&be_driver);
2443 module_exit(be_exit_module);