1f941f027718afd95dde07c70f26db49ab55ccde
[linux-2.6.git] / drivers / net / benet / be_main.c
1 /*
2  * Copyright (C) 2005 - 2009 ServerEngines
3  * All rights reserved.
4  *
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.
9  *
10  * Contact Information:
11  * linux-drivers@serverengines.com
12  *
13  * ServerEngines
14  * 209 N. Fair Oaks Ave
15  * Sunnyvale, CA 94085
16  */
17
18 #include "be.h"
19 #include "be_cmds.h"
20 #include <asm/div64.h>
21
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");
27
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.");
31
32 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
33         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
34         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
35         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
36         { 0 }
37 };
38 MODULE_DEVICE_TABLE(pci, be_dev_ids);
39
40 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
41 {
42         struct be_dma_mem *mem = &q->dma_mem;
43         if (mem->va)
44                 pci_free_consistent(adapter->pdev, mem->size,
45                         mem->va, mem->dma);
46 }
47
48 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
49                 u16 len, u16 entry_size)
50 {
51         struct be_dma_mem *mem = &q->dma_mem;
52
53         memset(q, 0, sizeof(*q));
54         q->len = len;
55         q->entry_size = entry_size;
56         mem->size = len * entry_size;
57         mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
58         if (!mem->va)
59                 return -1;
60         memset(mem->va, 0, mem->size);
61         return 0;
62 }
63
64 static void be_intr_set(struct be_adapter *adapter, bool enable)
65 {
66         u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
67         u32 reg = ioread32(addr);
68         u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
69
70         if (!enabled && enable)
71                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
72         else if (enabled && !enable)
73                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
74         else
75                 return;
76
77         iowrite32(reg, addr);
78 }
79
80 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
81 {
82         u32 val = 0;
83         val |= qid & DB_RQ_RING_ID_MASK;
84         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
85         iowrite32(val, adapter->db + DB_RQ_OFFSET);
86 }
87
88 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
89 {
90         u32 val = 0;
91         val |= qid & DB_TXULP_RING_ID_MASK;
92         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
93         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
94 }
95
96 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
97                 bool arm, bool clear_int, u16 num_popped)
98 {
99         u32 val = 0;
100         val |= qid & DB_EQ_RING_ID_MASK;
101         if (arm)
102                 val |= 1 << DB_EQ_REARM_SHIFT;
103         if (clear_int)
104                 val |= 1 << DB_EQ_CLR_SHIFT;
105         val |= 1 << DB_EQ_EVNT_SHIFT;
106         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
107         iowrite32(val, adapter->db + DB_EQ_OFFSET);
108 }
109
110 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
111 {
112         u32 val = 0;
113         val |= qid & DB_CQ_RING_ID_MASK;
114         if (arm)
115                 val |= 1 << DB_CQ_REARM_SHIFT;
116         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
117         iowrite32(val, adapter->db + DB_CQ_OFFSET);
118 }
119
120 static int be_mac_addr_set(struct net_device *netdev, void *p)
121 {
122         struct be_adapter *adapter = netdev_priv(netdev);
123         struct sockaddr *addr = p;
124         int status = 0;
125
126         status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
127         if (status)
128                 return status;
129
130         status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
131                         adapter->if_handle, &adapter->pmac_id);
132         if (!status)
133                 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
134
135         return status;
136 }
137
138 void netdev_stats_update(struct be_adapter *adapter)
139 {
140         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
141         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
142         struct be_port_rxf_stats *port_stats =
143                         &rxf_stats->port[adapter->port_num];
144         struct net_device_stats *dev_stats = &adapter->stats.net_stats;
145         struct be_erx_stats *erx_stats = &hw_stats->erx;
146
147         dev_stats->rx_packets = port_stats->rx_total_frames;
148         dev_stats->tx_packets = port_stats->tx_unicastframes +
149                 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
150         dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
151                                 (u64) port_stats->rx_bytes_lsd;
152         dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
153                                 (u64) port_stats->tx_bytes_lsd;
154
155         /* bad pkts received */
156         dev_stats->rx_errors = port_stats->rx_crc_errors +
157                 port_stats->rx_alignment_symbol_errors +
158                 port_stats->rx_in_range_errors +
159                 port_stats->rx_out_range_errors +
160                 port_stats->rx_frame_too_long +
161                 port_stats->rx_dropped_too_small +
162                 port_stats->rx_dropped_too_short +
163                 port_stats->rx_dropped_header_too_small +
164                 port_stats->rx_dropped_tcp_length +
165                 port_stats->rx_dropped_runt +
166                 port_stats->rx_tcp_checksum_errs +
167                 port_stats->rx_ip_checksum_errs +
168                 port_stats->rx_udp_checksum_errs;
169
170         /*  no space in linux buffers: best possible approximation */
171         dev_stats->rx_dropped = erx_stats->rx_drops_no_fragments[0];
172
173         /* detailed rx errors */
174         dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
175                 port_stats->rx_out_range_errors +
176                 port_stats->rx_frame_too_long;
177
178         /* receive ring buffer overflow */
179         dev_stats->rx_over_errors = 0;
180
181         dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
182
183         /* frame alignment errors */
184         dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
185
186         /* receiver fifo overrun */
187         /* drops_no_pbuf is no per i/f, it's per BE card */
188         dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
189                                         port_stats->rx_input_fifo_overflow +
190                                         rxf_stats->rx_drops_no_pbuf;
191         /* receiver missed packetd */
192         dev_stats->rx_missed_errors = 0;
193
194         /*  packet transmit problems */
195         dev_stats->tx_errors = 0;
196
197         /* no space available in linux */
198         dev_stats->tx_dropped = 0;
199
200         dev_stats->multicast = port_stats->rx_multicast_frames;
201         dev_stats->collisions = 0;
202
203         /* detailed tx_errors */
204         dev_stats->tx_aborted_errors = 0;
205         dev_stats->tx_carrier_errors = 0;
206         dev_stats->tx_fifo_errors = 0;
207         dev_stats->tx_heartbeat_errors = 0;
208         dev_stats->tx_window_errors = 0;
209 }
210
211 void be_link_status_update(struct be_adapter *adapter, bool link_up)
212 {
213         struct net_device *netdev = adapter->netdev;
214
215         /* If link came up or went down */
216         if (adapter->link_up != link_up) {
217                 if (link_up) {
218                         netif_start_queue(netdev);
219                         netif_carrier_on(netdev);
220                         printk(KERN_INFO "%s: Link up\n", netdev->name);
221                 } else {
222                         netif_stop_queue(netdev);
223                         netif_carrier_off(netdev);
224                         printk(KERN_INFO "%s: Link down\n", netdev->name);
225                 }
226                 adapter->link_up = link_up;
227         }
228 }
229
230 /* Update the EQ delay n BE based on the RX frags consumed / sec */
231 static void be_rx_eqd_update(struct be_adapter *adapter)
232 {
233         struct be_eq_obj *rx_eq = &adapter->rx_eq;
234         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
235         ulong now = jiffies;
236         u32 eqd;
237
238         if (!rx_eq->enable_aic)
239                 return;
240
241         /* Wrapped around */
242         if (time_before(now, stats->rx_fps_jiffies)) {
243                 stats->rx_fps_jiffies = now;
244                 return;
245         }
246
247         /* Update once a second */
248         if ((now - stats->rx_fps_jiffies) < HZ)
249                 return;
250
251         stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
252                         ((now - stats->rx_fps_jiffies) / HZ);
253
254         stats->rx_fps_jiffies = now;
255         stats->be_prev_rx_frags = stats->be_rx_frags;
256         eqd = stats->be_rx_fps / 110000;
257         eqd = eqd << 3;
258         if (eqd > rx_eq->max_eqd)
259                 eqd = rx_eq->max_eqd;
260         if (eqd < rx_eq->min_eqd)
261                 eqd = rx_eq->min_eqd;
262         if (eqd < 10)
263                 eqd = 0;
264         if (eqd != rx_eq->cur_eqd)
265                 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
266
267         rx_eq->cur_eqd = eqd;
268 }
269
270 static struct net_device_stats *be_get_stats(struct net_device *dev)
271 {
272         struct be_adapter *adapter = netdev_priv(dev);
273
274         return &adapter->stats.net_stats;
275 }
276
277 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
278 {
279         u64 rate = bytes;
280
281         do_div(rate, ticks / HZ);
282         rate <<= 3;                     /* bytes/sec -> bits/sec */
283         do_div(rate, 1000000ul);        /* MB/Sec */
284
285         return rate;
286 }
287
288 static void be_tx_rate_update(struct be_adapter *adapter)
289 {
290         struct be_drvr_stats *stats = drvr_stats(adapter);
291         ulong now = jiffies;
292
293         /* Wrapped around? */
294         if (time_before(now, stats->be_tx_jiffies)) {
295                 stats->be_tx_jiffies = now;
296                 return;
297         }
298
299         /* Update tx rate once in two seconds */
300         if ((now - stats->be_tx_jiffies) > 2 * HZ) {
301                 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
302                                                   - stats->be_tx_bytes_prev,
303                                                  now - stats->be_tx_jiffies);
304                 stats->be_tx_jiffies = now;
305                 stats->be_tx_bytes_prev = stats->be_tx_bytes;
306         }
307 }
308
309 static void be_tx_stats_update(struct be_adapter *adapter,
310                         u32 wrb_cnt, u32 copied, bool stopped)
311 {
312         struct be_drvr_stats *stats = drvr_stats(adapter);
313         stats->be_tx_reqs++;
314         stats->be_tx_wrbs += wrb_cnt;
315         stats->be_tx_bytes += copied;
316         if (stopped)
317                 stats->be_tx_stops++;
318 }
319
320 /* Determine number of WRB entries needed to xmit data in an skb */
321 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
322 {
323         int cnt = (skb->len > skb->data_len);
324
325         cnt += skb_shinfo(skb)->nr_frags;
326
327         /* to account for hdr wrb */
328         cnt++;
329         if (cnt & 1) {
330                 /* add a dummy to make it an even num */
331                 cnt++;
332                 *dummy = true;
333         } else
334                 *dummy = false;
335         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
336         return cnt;
337 }
338
339 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
340 {
341         wrb->frag_pa_hi = upper_32_bits(addr);
342         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
343         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
344 }
345
346 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
347                 bool vlan, u32 wrb_cnt, u32 len)
348 {
349         memset(hdr, 0, sizeof(*hdr));
350
351         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
352
353         if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
354                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
355                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
356                         hdr, skb_shinfo(skb)->gso_size);
357         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
358                 if (is_tcp_pkt(skb))
359                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
360                 else if (is_udp_pkt(skb))
361                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
362         }
363
364         if (vlan && vlan_tx_tag_present(skb)) {
365                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
366                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
367                         hdr, vlan_tx_tag_get(skb));
368         }
369
370         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
371         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
372         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
373         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
374 }
375
376
377 static int make_tx_wrbs(struct be_adapter *adapter,
378                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
379 {
380         u64 busaddr;
381         u32 i, copied = 0;
382         struct pci_dev *pdev = adapter->pdev;
383         struct sk_buff *first_skb = skb;
384         struct be_queue_info *txq = &adapter->tx_obj.q;
385         struct be_eth_wrb *wrb;
386         struct be_eth_hdr_wrb *hdr;
387
388         hdr = queue_head_node(txq);
389         atomic_add(wrb_cnt, &txq->used);
390         queue_head_inc(txq);
391
392         if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) {
393                 dev_err(&pdev->dev, "TX DMA mapping failed\n");
394                 return 0;
395         }
396
397         if (skb->len > skb->data_len) {
398                 int len = skb->len - skb->data_len;
399                 wrb = queue_head_node(txq);
400                 busaddr = skb_shinfo(skb)->dma_head;
401                 wrb_fill(wrb, busaddr, len);
402                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
403                 queue_head_inc(txq);
404                 copied += len;
405         }
406
407         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
408                 struct skb_frag_struct *frag =
409                         &skb_shinfo(skb)->frags[i];
410
411                 busaddr = skb_shinfo(skb)->dma_maps[i];
412                 wrb = queue_head_node(txq);
413                 wrb_fill(wrb, busaddr, frag->size);
414                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
415                 queue_head_inc(txq);
416                 copied += frag->size;
417         }
418
419         if (dummy_wrb) {
420                 wrb = queue_head_node(txq);
421                 wrb_fill(wrb, 0, 0);
422                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
423                 queue_head_inc(txq);
424         }
425
426         wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
427                 wrb_cnt, copied);
428         be_dws_cpu_to_le(hdr, sizeof(*hdr));
429
430         return copied;
431 }
432
433 static netdev_tx_t be_xmit(struct sk_buff *skb,
434                         struct net_device *netdev)
435 {
436         struct be_adapter *adapter = netdev_priv(netdev);
437         struct be_tx_obj *tx_obj = &adapter->tx_obj;
438         struct be_queue_info *txq = &tx_obj->q;
439         u32 wrb_cnt = 0, copied = 0;
440         u32 start = txq->head;
441         bool dummy_wrb, stopped = false;
442
443         wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
444
445         copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
446         if (copied) {
447                 /* record the sent skb in the sent_skb table */
448                 BUG_ON(tx_obj->sent_skb_list[start]);
449                 tx_obj->sent_skb_list[start] = skb;
450
451                 /* Ensure txq has space for the next skb; Else stop the queue
452                  * *BEFORE* ringing the tx doorbell, so that we serialze the
453                  * tx compls of the current transmit which'll wake up the queue
454                  */
455                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
456                                                                 txq->len) {
457                         netif_stop_queue(netdev);
458                         stopped = true;
459                 }
460
461                 be_txq_notify(adapter, txq->id, wrb_cnt);
462
463                 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
464         } else {
465                 txq->head = start;
466                 dev_kfree_skb_any(skb);
467         }
468         return NETDEV_TX_OK;
469 }
470
471 static int be_change_mtu(struct net_device *netdev, int new_mtu)
472 {
473         struct be_adapter *adapter = netdev_priv(netdev);
474         if (new_mtu < BE_MIN_MTU ||
475                         new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
476                 dev_info(&adapter->pdev->dev,
477                         "MTU must be between %d and %d bytes\n",
478                         BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
479                 return -EINVAL;
480         }
481         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
482                         netdev->mtu, new_mtu);
483         netdev->mtu = new_mtu;
484         return 0;
485 }
486
487 /*
488  * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
489  * program them in BE.  If more than BE_NUM_VLANS_SUPPORTED are configured,
490  * set the BE in promiscuous VLAN mode.
491  */
492 static int be_vid_config(struct be_adapter *adapter)
493 {
494         u16 vtag[BE_NUM_VLANS_SUPPORTED];
495         u16 ntags = 0, i;
496         int status;
497
498         if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED)  {
499                 /* Construct VLAN Table to give to HW */
500                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
501                         if (adapter->vlan_tag[i]) {
502                                 vtag[ntags] = cpu_to_le16(i);
503                                 ntags++;
504                         }
505                 }
506                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
507                                         vtag, ntags, 1, 0);
508         } else {
509                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
510                                         NULL, 0, 1, 1);
511         }
512         return status;
513 }
514
515 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
516 {
517         struct be_adapter *adapter = netdev_priv(netdev);
518         struct be_eq_obj *rx_eq = &adapter->rx_eq;
519         struct be_eq_obj *tx_eq = &adapter->tx_eq;
520
521         be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
522         be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
523         adapter->vlan_grp = grp;
524         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
525         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
526 }
527
528 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
529 {
530         struct be_adapter *adapter = netdev_priv(netdev);
531
532         adapter->num_vlans++;
533         adapter->vlan_tag[vid] = 1;
534
535         be_vid_config(adapter);
536 }
537
538 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
539 {
540         struct be_adapter *adapter = netdev_priv(netdev);
541
542         adapter->num_vlans--;
543         adapter->vlan_tag[vid] = 0;
544
545         vlan_group_set_device(adapter->vlan_grp, vid, NULL);
546         be_vid_config(adapter);
547 }
548
549 static void be_set_multicast_list(struct net_device *netdev)
550 {
551         struct be_adapter *adapter = netdev_priv(netdev);
552
553         if (netdev->flags & IFF_PROMISC) {
554                 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
555                 adapter->promiscuous = true;
556                 goto done;
557         }
558
559         /* BE was previously in promiscous mode; disable it */
560         if (adapter->promiscuous) {
561                 adapter->promiscuous = false;
562                 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
563         }
564
565         if (netdev->flags & IFF_ALLMULTI) {
566                 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0);
567                 goto done;
568         }
569
570         be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
571                 netdev->mc_count);
572 done:
573         return;
574 }
575
576 static void be_rx_rate_update(struct be_adapter *adapter)
577 {
578         struct be_drvr_stats *stats = drvr_stats(adapter);
579         ulong now = jiffies;
580
581         /* Wrapped around */
582         if (time_before(now, stats->be_rx_jiffies)) {
583                 stats->be_rx_jiffies = now;
584                 return;
585         }
586
587         /* Update the rate once in two seconds */
588         if ((now - stats->be_rx_jiffies) < 2 * HZ)
589                 return;
590
591         stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
592                                           - stats->be_rx_bytes_prev,
593                                          now - stats->be_rx_jiffies);
594         stats->be_rx_jiffies = now;
595         stats->be_rx_bytes_prev = stats->be_rx_bytes;
596 }
597
598 static void be_rx_stats_update(struct be_adapter *adapter,
599                 u32 pktsize, u16 numfrags)
600 {
601         struct be_drvr_stats *stats = drvr_stats(adapter);
602
603         stats->be_rx_compl++;
604         stats->be_rx_frags += numfrags;
605         stats->be_rx_bytes += pktsize;
606 }
607
608 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
609 {
610         u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
611
612         l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
613         ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
614         ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
615         if (ip_version) {
616                 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
617                 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
618         }
619         ipv6_chk = (ip_version && (tcpf || udpf));
620
621         return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
622 }
623
624 static struct be_rx_page_info *
625 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
626 {
627         struct be_rx_page_info *rx_page_info;
628         struct be_queue_info *rxq = &adapter->rx_obj.q;
629
630         rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
631         BUG_ON(!rx_page_info->page);
632
633         if (rx_page_info->last_page_user)
634                 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
635                         adapter->big_page_size, PCI_DMA_FROMDEVICE);
636
637         atomic_dec(&rxq->used);
638         return rx_page_info;
639 }
640
641 /* Throwaway the data in the Rx completion */
642 static void be_rx_compl_discard(struct be_adapter *adapter,
643                         struct be_eth_rx_compl *rxcp)
644 {
645         struct be_queue_info *rxq = &adapter->rx_obj.q;
646         struct be_rx_page_info *page_info;
647         u16 rxq_idx, i, num_rcvd;
648
649         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
650         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
651
652         for (i = 0; i < num_rcvd; i++) {
653                 page_info = get_rx_page_info(adapter, rxq_idx);
654                 put_page(page_info->page);
655                 memset(page_info, 0, sizeof(*page_info));
656                 index_inc(&rxq_idx, rxq->len);
657         }
658 }
659
660 /*
661  * skb_fill_rx_data forms a complete skb for an ether frame
662  * indicated by rxcp.
663  */
664 static void skb_fill_rx_data(struct be_adapter *adapter,
665                         struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
666 {
667         struct be_queue_info *rxq = &adapter->rx_obj.q;
668         struct be_rx_page_info *page_info;
669         u16 rxq_idx, i, num_rcvd, j;
670         u32 pktsize, hdr_len, curr_frag_len, size;
671         u8 *start;
672
673         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
674         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
675         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
676
677         page_info = get_rx_page_info(adapter, rxq_idx);
678
679         start = page_address(page_info->page) + page_info->page_offset;
680         prefetch(start);
681
682         /* Copy data in the first descriptor of this completion */
683         curr_frag_len = min(pktsize, rx_frag_size);
684
685         /* Copy the header portion into skb_data */
686         hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
687         memcpy(skb->data, start, hdr_len);
688         skb->len = curr_frag_len;
689         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
690                 /* Complete packet has now been moved to data */
691                 put_page(page_info->page);
692                 skb->data_len = 0;
693                 skb->tail += curr_frag_len;
694         } else {
695                 skb_shinfo(skb)->nr_frags = 1;
696                 skb_shinfo(skb)->frags[0].page = page_info->page;
697                 skb_shinfo(skb)->frags[0].page_offset =
698                                         page_info->page_offset + hdr_len;
699                 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
700                 skb->data_len = curr_frag_len - hdr_len;
701                 skb->tail += hdr_len;
702         }
703         memset(page_info, 0, sizeof(*page_info));
704
705         if (pktsize <= rx_frag_size) {
706                 BUG_ON(num_rcvd != 1);
707                 goto done;
708         }
709
710         /* More frags present for this completion */
711         size = pktsize;
712         for (i = 1, j = 0; i < num_rcvd; i++) {
713                 size -= curr_frag_len;
714                 index_inc(&rxq_idx, rxq->len);
715                 page_info = get_rx_page_info(adapter, rxq_idx);
716
717                 curr_frag_len = min(size, rx_frag_size);
718
719                 /* Coalesce all frags from the same physical page in one slot */
720                 if (page_info->page_offset == 0) {
721                         /* Fresh page */
722                         j++;
723                         skb_shinfo(skb)->frags[j].page = page_info->page;
724                         skb_shinfo(skb)->frags[j].page_offset =
725                                                         page_info->page_offset;
726                         skb_shinfo(skb)->frags[j].size = 0;
727                         skb_shinfo(skb)->nr_frags++;
728                 } else {
729                         put_page(page_info->page);
730                 }
731
732                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
733                 skb->len += curr_frag_len;
734                 skb->data_len += curr_frag_len;
735
736                 memset(page_info, 0, sizeof(*page_info));
737         }
738         BUG_ON(j > MAX_SKB_FRAGS);
739
740 done:
741         be_rx_stats_update(adapter, pktsize, num_rcvd);
742         return;
743 }
744
745 /* Process the RX completion indicated by rxcp when GRO is disabled */
746 static void be_rx_compl_process(struct be_adapter *adapter,
747                         struct be_eth_rx_compl *rxcp)
748 {
749         struct sk_buff *skb;
750         u32 vlanf, vid;
751         u8 vtm;
752
753         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
754         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
755
756         /* vlanf could be wrongly set in some cards.
757          * ignore if vtm is not set */
758         if ((adapter->cap == 0x400) && !vtm)
759                 vlanf = 0;
760
761         skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN);
762         if (!skb) {
763                 if (net_ratelimit())
764                         dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
765                 be_rx_compl_discard(adapter, rxcp);
766                 return;
767         }
768
769         skb_reserve(skb, NET_IP_ALIGN);
770
771         skb_fill_rx_data(adapter, skb, rxcp);
772
773         if (do_pkt_csum(rxcp, adapter->rx_csum))
774                 skb->ip_summed = CHECKSUM_NONE;
775         else
776                 skb->ip_summed = CHECKSUM_UNNECESSARY;
777
778         skb->truesize = skb->len + sizeof(struct sk_buff);
779         skb->protocol = eth_type_trans(skb, adapter->netdev);
780         skb->dev = adapter->netdev;
781
782         if (vlanf) {
783                 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
784                         kfree_skb(skb);
785                         return;
786                 }
787                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
788                 vid = be16_to_cpu(vid);
789                 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
790         } else {
791                 netif_receive_skb(skb);
792         }
793
794         return;
795 }
796
797 /* Process the RX completion indicated by rxcp when GRO is enabled */
798 static void be_rx_compl_process_gro(struct be_adapter *adapter,
799                         struct be_eth_rx_compl *rxcp)
800 {
801         struct be_rx_page_info *page_info;
802         struct sk_buff *skb = NULL;
803         struct be_queue_info *rxq = &adapter->rx_obj.q;
804         struct be_eq_obj *eq_obj =  &adapter->rx_eq;
805         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
806         u16 i, rxq_idx = 0, vid, j;
807         u8 vtm;
808
809         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
810         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
811         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
812         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
813         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
814
815         /* vlanf could be wrongly set in some cards.
816          * ignore if vtm is not set */
817         if ((adapter->cap == 0x400) && !vtm)
818                 vlanf = 0;
819
820         skb = napi_get_frags(&eq_obj->napi);
821         if (!skb) {
822                 be_rx_compl_discard(adapter, rxcp);
823                 return;
824         }
825
826         remaining = pkt_size;
827         for (i = 0, j = -1; i < num_rcvd; i++) {
828                 page_info = get_rx_page_info(adapter, rxq_idx);
829
830                 curr_frag_len = min(remaining, rx_frag_size);
831
832                 /* Coalesce all frags from the same physical page in one slot */
833                 if (i == 0 || page_info->page_offset == 0) {
834                         /* First frag or Fresh page */
835                         j++;
836                         skb_shinfo(skb)->frags[j].page = page_info->page;
837                         skb_shinfo(skb)->frags[j].page_offset =
838                                                         page_info->page_offset;
839                         skb_shinfo(skb)->frags[j].size = 0;
840                 } else {
841                         put_page(page_info->page);
842                 }
843                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
844
845                 remaining -= curr_frag_len;
846                 index_inc(&rxq_idx, rxq->len);
847                 memset(page_info, 0, sizeof(*page_info));
848         }
849         BUG_ON(j > MAX_SKB_FRAGS);
850
851         skb_shinfo(skb)->nr_frags = j + 1;
852         skb->len = pkt_size;
853         skb->data_len = pkt_size;
854         skb->truesize += pkt_size;
855         skb->ip_summed = CHECKSUM_UNNECESSARY;
856
857         if (likely(!vlanf)) {
858                 napi_gro_frags(&eq_obj->napi);
859         } else {
860                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
861                 vid = be16_to_cpu(vid);
862
863                 if (!adapter->vlan_grp || adapter->num_vlans == 0)
864                         return;
865
866                 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
867         }
868
869         be_rx_stats_update(adapter, pkt_size, num_rcvd);
870         return;
871 }
872
873 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
874 {
875         struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
876
877         if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
878                 return NULL;
879
880         be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
881
882         queue_tail_inc(&adapter->rx_obj.cq);
883         return rxcp;
884 }
885
886 /* To reset the valid bit, we need to reset the whole word as
887  * when walking the queue the valid entries are little-endian
888  * and invalid entries are host endian
889  */
890 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
891 {
892         rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
893 }
894
895 static inline struct page *be_alloc_pages(u32 size)
896 {
897         gfp_t alloc_flags = GFP_ATOMIC;
898         u32 order = get_order(size);
899         if (order > 0)
900                 alloc_flags |= __GFP_COMP;
901         return  alloc_pages(alloc_flags, order);
902 }
903
904 /*
905  * Allocate a page, split it to fragments of size rx_frag_size and post as
906  * receive buffers to BE
907  */
908 static void be_post_rx_frags(struct be_adapter *adapter)
909 {
910         struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
911         struct be_rx_page_info *page_info = NULL;
912         struct be_queue_info *rxq = &adapter->rx_obj.q;
913         struct page *pagep = NULL;
914         struct be_eth_rx_d *rxd;
915         u64 page_dmaaddr = 0, frag_dmaaddr;
916         u32 posted, page_offset = 0;
917
918         page_info = &page_info_tbl[rxq->head];
919         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
920                 if (!pagep) {
921                         pagep = be_alloc_pages(adapter->big_page_size);
922                         if (unlikely(!pagep)) {
923                                 drvr_stats(adapter)->be_ethrx_post_fail++;
924                                 break;
925                         }
926                         page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
927                                                 adapter->big_page_size,
928                                                 PCI_DMA_FROMDEVICE);
929                         page_info->page_offset = 0;
930                 } else {
931                         get_page(pagep);
932                         page_info->page_offset = page_offset + rx_frag_size;
933                 }
934                 page_offset = page_info->page_offset;
935                 page_info->page = pagep;
936                 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
937                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
938
939                 rxd = queue_head_node(rxq);
940                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
941                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
942                 queue_head_inc(rxq);
943
944                 /* Any space left in the current big page for another frag? */
945                 if ((page_offset + rx_frag_size + rx_frag_size) >
946                                         adapter->big_page_size) {
947                         pagep = NULL;
948                         page_info->last_page_user = true;
949                 }
950                 page_info = &page_info_tbl[rxq->head];
951         }
952         if (pagep)
953                 page_info->last_page_user = true;
954
955         if (posted) {
956                 atomic_add(posted, &rxq->used);
957                 be_rxq_notify(adapter, rxq->id, posted);
958         } else if (atomic_read(&rxq->used) == 0) {
959                 /* Let be_worker replenish when memory is available */
960                 adapter->rx_post_starved = true;
961         }
962
963         return;
964 }
965
966 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
967 {
968         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
969
970         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
971                 return NULL;
972
973         be_dws_le_to_cpu(txcp, sizeof(*txcp));
974
975         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
976
977         queue_tail_inc(tx_cq);
978         return txcp;
979 }
980
981 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
982 {
983         struct be_queue_info *txq = &adapter->tx_obj.q;
984         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
985         struct sk_buff *sent_skb;
986         u16 cur_index, num_wrbs = 0;
987
988         cur_index = txq->tail;
989         sent_skb = sent_skbs[cur_index];
990         BUG_ON(!sent_skb);
991         sent_skbs[cur_index] = NULL;
992
993         do {
994                 cur_index = txq->tail;
995                 num_wrbs++;
996                 queue_tail_inc(txq);
997         } while (cur_index != last_index);
998
999         atomic_sub(num_wrbs, &txq->used);
1000         skb_dma_unmap(&adapter->pdev->dev, sent_skb, DMA_TO_DEVICE);
1001         kfree_skb(sent_skb);
1002 }
1003
1004 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1005 {
1006         struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1007
1008         if (!eqe->evt)
1009                 return NULL;
1010
1011         eqe->evt = le32_to_cpu(eqe->evt);
1012         queue_tail_inc(&eq_obj->q);
1013         return eqe;
1014 }
1015
1016 static int event_handle(struct be_adapter *adapter,
1017                         struct be_eq_obj *eq_obj)
1018 {
1019         struct be_eq_entry *eqe;
1020         u16 num = 0;
1021
1022         while ((eqe = event_get(eq_obj)) != NULL) {
1023                 eqe->evt = 0;
1024                 num++;
1025         }
1026
1027         /* Deal with any spurious interrupts that come
1028          * without events
1029          */
1030         be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1031         if (num)
1032                 napi_schedule(&eq_obj->napi);
1033
1034         return num;
1035 }
1036
1037 /* Just read and notify events without processing them.
1038  * Used at the time of destroying event queues */
1039 static void be_eq_clean(struct be_adapter *adapter,
1040                         struct be_eq_obj *eq_obj)
1041 {
1042         struct be_eq_entry *eqe;
1043         u16 num = 0;
1044
1045         while ((eqe = event_get(eq_obj)) != NULL) {
1046                 eqe->evt = 0;
1047                 num++;
1048         }
1049
1050         if (num)
1051                 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1052 }
1053
1054 static void be_rx_q_clean(struct be_adapter *adapter)
1055 {
1056         struct be_rx_page_info *page_info;
1057         struct be_queue_info *rxq = &adapter->rx_obj.q;
1058         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1059         struct be_eth_rx_compl *rxcp;
1060         u16 tail;
1061
1062         /* First cleanup pending rx completions */
1063         while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1064                 be_rx_compl_discard(adapter, rxcp);
1065                 be_rx_compl_reset(rxcp);
1066                 be_cq_notify(adapter, rx_cq->id, true, 1);
1067         }
1068
1069         /* Then free posted rx buffer that were not used */
1070         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1071         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1072                 page_info = get_rx_page_info(adapter, tail);
1073                 put_page(page_info->page);
1074                 memset(page_info, 0, sizeof(*page_info));
1075         }
1076         BUG_ON(atomic_read(&rxq->used));
1077 }
1078
1079 static void be_tx_compl_clean(struct be_adapter *adapter)
1080 {
1081         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1082         struct be_queue_info *txq = &adapter->tx_obj.q;
1083         struct be_eth_tx_compl *txcp;
1084         u16 end_idx, cmpl = 0, timeo = 0;
1085
1086         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1087         do {
1088                 while ((txcp = be_tx_compl_get(tx_cq))) {
1089                         end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1090                                         wrb_index, txcp);
1091                         be_tx_compl_process(adapter, end_idx);
1092                         cmpl++;
1093                 }
1094                 if (cmpl) {
1095                         be_cq_notify(adapter, tx_cq->id, false, cmpl);
1096                         cmpl = 0;
1097                 }
1098
1099                 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1100                         break;
1101
1102                 mdelay(1);
1103         } while (true);
1104
1105         if (atomic_read(&txq->used))
1106                 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1107                         atomic_read(&txq->used));
1108 }
1109
1110 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1111 {
1112         struct be_queue_info *q;
1113
1114         q = &adapter->mcc_obj.q;
1115         if (q->created)
1116                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1117         be_queue_free(adapter, q);
1118
1119         q = &adapter->mcc_obj.cq;
1120         if (q->created)
1121                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1122         be_queue_free(adapter, q);
1123 }
1124
1125 /* Must be called only after TX qs are created as MCC shares TX EQ */
1126 static int be_mcc_queues_create(struct be_adapter *adapter)
1127 {
1128         struct be_queue_info *q, *cq;
1129
1130         /* Alloc MCC compl queue */
1131         cq = &adapter->mcc_obj.cq;
1132         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1133                         sizeof(struct be_mcc_compl)))
1134                 goto err;
1135
1136         /* Ask BE to create MCC compl queue; share TX's eq */
1137         if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1138                 goto mcc_cq_free;
1139
1140         /* Alloc MCC queue */
1141         q = &adapter->mcc_obj.q;
1142         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1143                 goto mcc_cq_destroy;
1144
1145         /* Ask BE to create MCC queue */
1146         if (be_cmd_mccq_create(adapter, q, cq))
1147                 goto mcc_q_free;
1148
1149         return 0;
1150
1151 mcc_q_free:
1152         be_queue_free(adapter, q);
1153 mcc_cq_destroy:
1154         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1155 mcc_cq_free:
1156         be_queue_free(adapter, cq);
1157 err:
1158         return -1;
1159 }
1160
1161 static void be_tx_queues_destroy(struct be_adapter *adapter)
1162 {
1163         struct be_queue_info *q;
1164
1165         q = &adapter->tx_obj.q;
1166         if (q->created)
1167                 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1168         be_queue_free(adapter, q);
1169
1170         q = &adapter->tx_obj.cq;
1171         if (q->created)
1172                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1173         be_queue_free(adapter, q);
1174
1175         /* Clear any residual events */
1176         be_eq_clean(adapter, &adapter->tx_eq);
1177
1178         q = &adapter->tx_eq.q;
1179         if (q->created)
1180                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1181         be_queue_free(adapter, q);
1182 }
1183
1184 static int be_tx_queues_create(struct be_adapter *adapter)
1185 {
1186         struct be_queue_info *eq, *q, *cq;
1187
1188         adapter->tx_eq.max_eqd = 0;
1189         adapter->tx_eq.min_eqd = 0;
1190         adapter->tx_eq.cur_eqd = 96;
1191         adapter->tx_eq.enable_aic = false;
1192         /* Alloc Tx Event queue */
1193         eq = &adapter->tx_eq.q;
1194         if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1195                 return -1;
1196
1197         /* Ask BE to create Tx Event queue */
1198         if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1199                 goto tx_eq_free;
1200         /* Alloc TX eth compl queue */
1201         cq = &adapter->tx_obj.cq;
1202         if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1203                         sizeof(struct be_eth_tx_compl)))
1204                 goto tx_eq_destroy;
1205
1206         /* Ask BE to create Tx eth compl queue */
1207         if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1208                 goto tx_cq_free;
1209
1210         /* Alloc TX eth queue */
1211         q = &adapter->tx_obj.q;
1212         if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1213                 goto tx_cq_destroy;
1214
1215         /* Ask BE to create Tx eth queue */
1216         if (be_cmd_txq_create(adapter, q, cq))
1217                 goto tx_q_free;
1218         return 0;
1219
1220 tx_q_free:
1221         be_queue_free(adapter, q);
1222 tx_cq_destroy:
1223         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1224 tx_cq_free:
1225         be_queue_free(adapter, cq);
1226 tx_eq_destroy:
1227         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1228 tx_eq_free:
1229         be_queue_free(adapter, eq);
1230         return -1;
1231 }
1232
1233 static void be_rx_queues_destroy(struct be_adapter *adapter)
1234 {
1235         struct be_queue_info *q;
1236
1237         q = &adapter->rx_obj.q;
1238         if (q->created) {
1239                 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1240                 be_rx_q_clean(adapter);
1241         }
1242         be_queue_free(adapter, q);
1243
1244         q = &adapter->rx_obj.cq;
1245         if (q->created)
1246                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1247         be_queue_free(adapter, q);
1248
1249         /* Clear any residual events */
1250         be_eq_clean(adapter, &adapter->rx_eq);
1251
1252         q = &adapter->rx_eq.q;
1253         if (q->created)
1254                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1255         be_queue_free(adapter, q);
1256 }
1257
1258 static int be_rx_queues_create(struct be_adapter *adapter)
1259 {
1260         struct be_queue_info *eq, *q, *cq;
1261         int rc;
1262
1263         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1264         adapter->rx_eq.max_eqd = BE_MAX_EQD;
1265         adapter->rx_eq.min_eqd = 0;
1266         adapter->rx_eq.cur_eqd = 0;
1267         adapter->rx_eq.enable_aic = true;
1268
1269         /* Alloc Rx Event queue */
1270         eq = &adapter->rx_eq.q;
1271         rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1272                                 sizeof(struct be_eq_entry));
1273         if (rc)
1274                 return rc;
1275
1276         /* Ask BE to create Rx Event queue */
1277         rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1278         if (rc)
1279                 goto rx_eq_free;
1280
1281         /* Alloc RX eth compl queue */
1282         cq = &adapter->rx_obj.cq;
1283         rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1284                         sizeof(struct be_eth_rx_compl));
1285         if (rc)
1286                 goto rx_eq_destroy;
1287
1288         /* Ask BE to create Rx eth compl queue */
1289         rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1290         if (rc)
1291                 goto rx_cq_free;
1292
1293         /* Alloc RX eth queue */
1294         q = &adapter->rx_obj.q;
1295         rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1296         if (rc)
1297                 goto rx_cq_destroy;
1298
1299         /* Ask BE to create Rx eth queue */
1300         rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1301                 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1302         if (rc)
1303                 goto rx_q_free;
1304
1305         return 0;
1306 rx_q_free:
1307         be_queue_free(adapter, q);
1308 rx_cq_destroy:
1309         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1310 rx_cq_free:
1311         be_queue_free(adapter, cq);
1312 rx_eq_destroy:
1313         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1314 rx_eq_free:
1315         be_queue_free(adapter, eq);
1316         return rc;
1317 }
1318
1319 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1320 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1321 {
1322         return eq_id - 8 * be_pci_func(adapter);
1323 }
1324
1325 static irqreturn_t be_intx(int irq, void *dev)
1326 {
1327         struct be_adapter *adapter = dev;
1328         int isr;
1329
1330         isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1331                         be_pci_func(adapter) * CEV_ISR_SIZE);
1332         if (!isr)
1333                 return IRQ_NONE;
1334
1335         event_handle(adapter, &adapter->tx_eq);
1336         event_handle(adapter, &adapter->rx_eq);
1337
1338         return IRQ_HANDLED;
1339 }
1340
1341 static irqreturn_t be_msix_rx(int irq, void *dev)
1342 {
1343         struct be_adapter *adapter = dev;
1344
1345         event_handle(adapter, &adapter->rx_eq);
1346
1347         return IRQ_HANDLED;
1348 }
1349
1350 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1351 {
1352         struct be_adapter *adapter = dev;
1353
1354         event_handle(adapter, &adapter->tx_eq);
1355
1356         return IRQ_HANDLED;
1357 }
1358
1359 static inline bool do_gro(struct be_adapter *adapter,
1360                         struct be_eth_rx_compl *rxcp)
1361 {
1362         int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1363         int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1364
1365         if (err)
1366                 drvr_stats(adapter)->be_rxcp_err++;
1367
1368         return (tcp_frame && !err) ? true : false;
1369 }
1370
1371 int be_poll_rx(struct napi_struct *napi, int budget)
1372 {
1373         struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1374         struct be_adapter *adapter =
1375                 container_of(rx_eq, struct be_adapter, rx_eq);
1376         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1377         struct be_eth_rx_compl *rxcp;
1378         u32 work_done;
1379
1380         for (work_done = 0; work_done < budget; work_done++) {
1381                 rxcp = be_rx_compl_get(adapter);
1382                 if (!rxcp)
1383                         break;
1384
1385                 if (do_gro(adapter, rxcp))
1386                         be_rx_compl_process_gro(adapter, rxcp);
1387                 else
1388                         be_rx_compl_process(adapter, rxcp);
1389
1390                 be_rx_compl_reset(rxcp);
1391         }
1392
1393         /* Refill the queue */
1394         if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1395                 be_post_rx_frags(adapter);
1396
1397         /* All consumed */
1398         if (work_done < budget) {
1399                 napi_complete(napi);
1400                 be_cq_notify(adapter, rx_cq->id, true, work_done);
1401         } else {
1402                 /* More to be consumed; continue with interrupts disabled */
1403                 be_cq_notify(adapter, rx_cq->id, false, work_done);
1404         }
1405         return work_done;
1406 }
1407
1408 void be_process_tx(struct be_adapter *adapter)
1409 {
1410         struct be_queue_info *txq = &adapter->tx_obj.q;
1411         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1412         struct be_eth_tx_compl *txcp;
1413         u32 num_cmpl = 0;
1414         u16 end_idx;
1415
1416         while ((txcp = be_tx_compl_get(tx_cq))) {
1417                 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1418                                         wrb_index, txcp);
1419                 be_tx_compl_process(adapter, end_idx);
1420                 num_cmpl++;
1421         }
1422
1423         if (num_cmpl) {
1424                 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1425
1426                 /* As Tx wrbs have been freed up, wake up netdev queue if
1427                  * it was stopped due to lack of tx wrbs.
1428                  */
1429                 if (netif_queue_stopped(adapter->netdev) &&
1430                         atomic_read(&txq->used) < txq->len / 2) {
1431                         netif_wake_queue(adapter->netdev);
1432                 }
1433
1434                 drvr_stats(adapter)->be_tx_events++;
1435                 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1436         }
1437 }
1438
1439 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1440  * For TX/MCC we don't honour budget; consume everything
1441  */
1442 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1443 {
1444         struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1445         struct be_adapter *adapter =
1446                 container_of(tx_eq, struct be_adapter, tx_eq);
1447
1448         napi_complete(napi);
1449
1450         be_process_tx(adapter);
1451
1452         be_process_mcc(adapter);
1453
1454         return 1;
1455 }
1456
1457 static void be_worker(struct work_struct *work)
1458 {
1459         struct be_adapter *adapter =
1460                 container_of(work, struct be_adapter, work.work);
1461
1462         be_cmd_get_stats(adapter, &adapter->stats.cmd);
1463
1464         /* Set EQ delay */
1465         be_rx_eqd_update(adapter);
1466
1467         be_tx_rate_update(adapter);
1468         be_rx_rate_update(adapter);
1469
1470         if (adapter->rx_post_starved) {
1471                 adapter->rx_post_starved = false;
1472                 be_post_rx_frags(adapter);
1473         }
1474
1475         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1476 }
1477
1478 static void be_msix_enable(struct be_adapter *adapter)
1479 {
1480         int i, status;
1481
1482         for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1483                 adapter->msix_entries[i].entry = i;
1484
1485         status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1486                 BE_NUM_MSIX_VECTORS);
1487         if (status == 0)
1488                 adapter->msix_enabled = true;
1489         return;
1490 }
1491
1492 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1493 {
1494         return adapter->msix_entries[
1495                         be_evt_bit_get(adapter, eq_id)].vector;
1496 }
1497
1498 static int be_request_irq(struct be_adapter *adapter,
1499                 struct be_eq_obj *eq_obj,
1500                 void *handler, char *desc)
1501 {
1502         struct net_device *netdev = adapter->netdev;
1503         int vec;
1504
1505         sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1506         vec = be_msix_vec_get(adapter, eq_obj->q.id);
1507         return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1508 }
1509
1510 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1511 {
1512         int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1513         free_irq(vec, adapter);
1514 }
1515
1516 static int be_msix_register(struct be_adapter *adapter)
1517 {
1518         int status;
1519
1520         status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1521         if (status)
1522                 goto err;
1523
1524         status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1525         if (status)
1526                 goto free_tx_irq;
1527
1528         return 0;
1529
1530 free_tx_irq:
1531         be_free_irq(adapter, &adapter->tx_eq);
1532 err:
1533         dev_warn(&adapter->pdev->dev,
1534                 "MSIX Request IRQ failed - err %d\n", status);
1535         pci_disable_msix(adapter->pdev);
1536         adapter->msix_enabled = false;
1537         return status;
1538 }
1539
1540 static int be_irq_register(struct be_adapter *adapter)
1541 {
1542         struct net_device *netdev = adapter->netdev;
1543         int status;
1544
1545         if (adapter->msix_enabled) {
1546                 status = be_msix_register(adapter);
1547                 if (status == 0)
1548                         goto done;
1549         }
1550
1551         /* INTx */
1552         netdev->irq = adapter->pdev->irq;
1553         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1554                         adapter);
1555         if (status) {
1556                 dev_err(&adapter->pdev->dev,
1557                         "INTx request IRQ failed - err %d\n", status);
1558                 return status;
1559         }
1560 done:
1561         adapter->isr_registered = true;
1562         return 0;
1563 }
1564
1565 static void be_irq_unregister(struct be_adapter *adapter)
1566 {
1567         struct net_device *netdev = adapter->netdev;
1568
1569         if (!adapter->isr_registered)
1570                 return;
1571
1572         /* INTx */
1573         if (!adapter->msix_enabled) {
1574                 free_irq(netdev->irq, adapter);
1575                 goto done;
1576         }
1577
1578         /* MSIx */
1579         be_free_irq(adapter, &adapter->tx_eq);
1580         be_free_irq(adapter, &adapter->rx_eq);
1581 done:
1582         adapter->isr_registered = false;
1583         return;
1584 }
1585
1586 static int be_open(struct net_device *netdev)
1587 {
1588         struct be_adapter *adapter = netdev_priv(netdev);
1589         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1590         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1591         bool link_up;
1592         int status;
1593
1594         /* First time posting */
1595         be_post_rx_frags(adapter);
1596
1597         napi_enable(&rx_eq->napi);
1598         napi_enable(&tx_eq->napi);
1599
1600         be_irq_register(adapter);
1601
1602         be_intr_set(adapter, true);
1603
1604         /* The evt queues are created in unarmed state; arm them */
1605         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1606         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1607
1608         /* Rx compl queue may be in unarmed state; rearm it */
1609         be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1610
1611         status = be_cmd_link_status_query(adapter, &link_up);
1612         if (status)
1613                 return status;
1614         be_link_status_update(adapter, link_up);
1615
1616         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1617         return 0;
1618 }
1619
1620 static int be_setup(struct be_adapter *adapter)
1621 {
1622         struct net_device *netdev = adapter->netdev;
1623         u32 cap_flags, en_flags;
1624         int status;
1625
1626         cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1627                         BE_IF_FLAGS_MCAST_PROMISCUOUS |
1628                         BE_IF_FLAGS_PROMISCUOUS |
1629                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1630         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1631                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1632
1633         status = be_cmd_if_create(adapter, cap_flags, en_flags,
1634                         netdev->dev_addr, false/* pmac_invalid */,
1635                         &adapter->if_handle, &adapter->pmac_id);
1636         if (status != 0)
1637                 goto do_none;
1638
1639         status = be_tx_queues_create(adapter);
1640         if (status != 0)
1641                 goto if_destroy;
1642
1643         status = be_rx_queues_create(adapter);
1644         if (status != 0)
1645                 goto tx_qs_destroy;
1646
1647         status = be_mcc_queues_create(adapter);
1648         if (status != 0)
1649                 goto rx_qs_destroy;
1650
1651         status = be_vid_config(adapter);
1652         if (status != 0)
1653                 goto mccqs_destroy;
1654
1655         status = be_cmd_set_flow_control(adapter, true, true);
1656         if (status != 0)
1657                 goto mccqs_destroy;
1658         return 0;
1659
1660 mccqs_destroy:
1661         be_mcc_queues_destroy(adapter);
1662 rx_qs_destroy:
1663         be_rx_queues_destroy(adapter);
1664 tx_qs_destroy:
1665         be_tx_queues_destroy(adapter);
1666 if_destroy:
1667         be_cmd_if_destroy(adapter, adapter->if_handle);
1668 do_none:
1669         return status;
1670 }
1671
1672 static int be_clear(struct be_adapter *adapter)
1673 {
1674         be_mcc_queues_destroy(adapter);
1675         be_rx_queues_destroy(adapter);
1676         be_tx_queues_destroy(adapter);
1677
1678         be_cmd_if_destroy(adapter, adapter->if_handle);
1679
1680         return 0;
1681 }
1682
1683 static int be_close(struct net_device *netdev)
1684 {
1685         struct be_adapter *adapter = netdev_priv(netdev);
1686         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1687         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1688         int vec;
1689
1690         cancel_delayed_work_sync(&adapter->work);
1691
1692         netif_stop_queue(netdev);
1693         netif_carrier_off(netdev);
1694         adapter->link_up = false;
1695
1696         be_intr_set(adapter, false);
1697
1698         if (adapter->msix_enabled) {
1699                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1700                 synchronize_irq(vec);
1701                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1702                 synchronize_irq(vec);
1703         } else {
1704                 synchronize_irq(netdev->irq);
1705         }
1706         be_irq_unregister(adapter);
1707
1708         napi_disable(&rx_eq->napi);
1709         napi_disable(&tx_eq->napi);
1710
1711         /* Wait for all pending tx completions to arrive so that
1712          * all tx skbs are freed.
1713          */
1714         be_tx_compl_clean(adapter);
1715
1716         return 0;
1717 }
1718
1719 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
1720 char flash_cookie[2][16] =      {"*** SE FLAS",
1721                                 "H DIRECTORY *** "};
1722 static int be_flash_image(struct be_adapter *adapter,
1723                         const struct firmware *fw,
1724                         struct be_dma_mem *flash_cmd, u32 flash_type)
1725 {
1726         int status;
1727         u32 flash_op, image_offset = 0, total_bytes, image_size = 0;
1728         int num_bytes;
1729         const u8 *p = fw->data;
1730         struct be_cmd_write_flashrom *req = flash_cmd->va;
1731
1732         switch (flash_type) {
1733         case FLASHROM_TYPE_ISCSI_ACTIVE:
1734                 image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START;
1735                 image_size = FLASH_IMAGE_MAX_SIZE;
1736                 break;
1737         case FLASHROM_TYPE_ISCSI_BACKUP:
1738                 image_offset = FLASH_iSCSI_BACKUP_IMAGE_START;
1739                 image_size = FLASH_IMAGE_MAX_SIZE;
1740                 break;
1741         case FLASHROM_TYPE_FCOE_FW_ACTIVE:
1742                 image_offset = FLASH_FCoE_PRIMARY_IMAGE_START;
1743                 image_size = FLASH_IMAGE_MAX_SIZE;
1744                 break;
1745         case FLASHROM_TYPE_FCOE_FW_BACKUP:
1746                 image_offset = FLASH_FCoE_BACKUP_IMAGE_START;
1747                 image_size = FLASH_IMAGE_MAX_SIZE;
1748                 break;
1749         case FLASHROM_TYPE_BIOS:
1750                 image_offset = FLASH_iSCSI_BIOS_START;
1751                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1752                 break;
1753         case FLASHROM_TYPE_FCOE_BIOS:
1754                 image_offset = FLASH_FCoE_BIOS_START;
1755                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1756                 break;
1757         case FLASHROM_TYPE_PXE_BIOS:
1758                 image_offset = FLASH_PXE_BIOS_START;
1759                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1760                 break;
1761         default:
1762                 return 0;
1763         }
1764
1765         p += sizeof(struct flash_file_hdr) + image_offset;
1766         if (p + image_size > fw->data + fw->size)
1767                 return -1;
1768
1769         total_bytes = image_size;
1770
1771         while (total_bytes) {
1772                 if (total_bytes > 32*1024)
1773                         num_bytes = 32*1024;
1774                 else
1775                         num_bytes = total_bytes;
1776                 total_bytes -= num_bytes;
1777
1778                 if (!total_bytes)
1779                         flash_op = FLASHROM_OPER_FLASH;
1780                 else
1781                         flash_op = FLASHROM_OPER_SAVE;
1782                 memcpy(req->params.data_buf, p, num_bytes);
1783                 p += num_bytes;
1784                 status = be_cmd_write_flashrom(adapter, flash_cmd,
1785                                 flash_type, flash_op, num_bytes);
1786                 if (status) {
1787                         dev_err(&adapter->pdev->dev,
1788                         "cmd to write to flash rom failed. type/op %d/%d\n",
1789                         flash_type, flash_op);
1790                         return -1;
1791                 }
1792                 yield();
1793         }
1794
1795         return 0;
1796 }
1797
1798 int be_load_fw(struct be_adapter *adapter, u8 *func)
1799 {
1800         char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1801         const struct firmware *fw;
1802         struct flash_file_hdr *fhdr;
1803         struct flash_section_info *fsec = NULL;
1804         struct be_dma_mem flash_cmd;
1805         int status;
1806         const u8 *p;
1807         bool entry_found = false;
1808         int flash_type;
1809         char fw_ver[FW_VER_LEN];
1810         char fw_cfg;
1811
1812         status = be_cmd_get_fw_ver(adapter, fw_ver);
1813         if (status)
1814                 return status;
1815
1816         fw_cfg = *(fw_ver + 2);
1817         if (fw_cfg == '0')
1818                 fw_cfg = '1';
1819         strcpy(fw_file, func);
1820
1821         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1822         if (status)
1823                 goto fw_exit;
1824
1825         p = fw->data;
1826         fhdr = (struct flash_file_hdr *) p;
1827         if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) {
1828                 dev_err(&adapter->pdev->dev,
1829                         "Firmware(%s) load error (signature did not match)\n",
1830                                 fw_file);
1831                 status = -1;
1832                 goto fw_exit;
1833         }
1834
1835         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1836
1837         p += sizeof(struct flash_file_hdr);
1838         while (p < (fw->data + fw->size)) {
1839                 fsec = (struct flash_section_info *)p;
1840                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) {
1841                         entry_found = true;
1842                         break;
1843                 }
1844                 p += 32;
1845         }
1846
1847         if (!entry_found) {
1848                 status = -1;
1849                 dev_err(&adapter->pdev->dev,
1850                         "Flash cookie not found in firmware image\n");
1851                 goto fw_exit;
1852         }
1853
1854         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1855         flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1856                                         &flash_cmd.dma);
1857         if (!flash_cmd.va) {
1858                 status = -ENOMEM;
1859                 dev_err(&adapter->pdev->dev,
1860                         "Memory allocation failure while flashing\n");
1861                 goto fw_exit;
1862         }
1863
1864         for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE;
1865                 flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) {
1866                 status = be_flash_image(adapter, fw, &flash_cmd,
1867                                 flash_type);
1868                 if (status)
1869                         break;
1870         }
1871
1872         pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1873                                 flash_cmd.dma);
1874         if (status) {
1875                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
1876                 goto fw_exit;
1877         }
1878
1879         dev_info(&adapter->pdev->dev, "Firmware flashed succesfully\n");
1880
1881 fw_exit:
1882         release_firmware(fw);
1883         return status;
1884 }
1885
1886 static struct net_device_ops be_netdev_ops = {
1887         .ndo_open               = be_open,
1888         .ndo_stop               = be_close,
1889         .ndo_start_xmit         = be_xmit,
1890         .ndo_get_stats          = be_get_stats,
1891         .ndo_set_rx_mode        = be_set_multicast_list,
1892         .ndo_set_mac_address    = be_mac_addr_set,
1893         .ndo_change_mtu         = be_change_mtu,
1894         .ndo_validate_addr      = eth_validate_addr,
1895         .ndo_vlan_rx_register   = be_vlan_register,
1896         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
1897         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
1898 };
1899
1900 static void be_netdev_init(struct net_device *netdev)
1901 {
1902         struct be_adapter *adapter = netdev_priv(netdev);
1903
1904         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1905                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
1906                 NETIF_F_GRO;
1907
1908         netdev->flags |= IFF_MULTICAST;
1909
1910         adapter->rx_csum = true;
1911
1912         netif_set_gso_max_size(netdev, 65535);
1913
1914         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1915
1916         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1917
1918         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1919                 BE_NAPI_WEIGHT);
1920         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
1921                 BE_NAPI_WEIGHT);
1922
1923         netif_carrier_off(netdev);
1924         netif_stop_queue(netdev);
1925 }
1926
1927 static void be_unmap_pci_bars(struct be_adapter *adapter)
1928 {
1929         if (adapter->csr)
1930                 iounmap(adapter->csr);
1931         if (adapter->db)
1932                 iounmap(adapter->db);
1933         if (adapter->pcicfg)
1934                 iounmap(adapter->pcicfg);
1935 }
1936
1937 static int be_map_pci_bars(struct be_adapter *adapter)
1938 {
1939         u8 __iomem *addr;
1940
1941         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
1942                         pci_resource_len(adapter->pdev, 2));
1943         if (addr == NULL)
1944                 return -ENOMEM;
1945         adapter->csr = addr;
1946
1947         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
1948                         128 * 1024);
1949         if (addr == NULL)
1950                 goto pci_map_err;
1951         adapter->db = addr;
1952
1953         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
1954                         pci_resource_len(adapter->pdev, 1));
1955         if (addr == NULL)
1956                 goto pci_map_err;
1957         adapter->pcicfg = addr;
1958
1959         return 0;
1960 pci_map_err:
1961         be_unmap_pci_bars(adapter);
1962         return -ENOMEM;
1963 }
1964
1965
1966 static void be_ctrl_cleanup(struct be_adapter *adapter)
1967 {
1968         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
1969
1970         be_unmap_pci_bars(adapter);
1971
1972         if (mem->va)
1973                 pci_free_consistent(adapter->pdev, mem->size,
1974                         mem->va, mem->dma);
1975 }
1976
1977 static int be_ctrl_init(struct be_adapter *adapter)
1978 {
1979         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
1980         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
1981         int status;
1982
1983         status = be_map_pci_bars(adapter);
1984         if (status)
1985                 return status;
1986
1987         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
1988         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
1989                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
1990         if (!mbox_mem_alloc->va) {
1991                 be_unmap_pci_bars(adapter);
1992                 return -1;
1993         }
1994         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
1995         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
1996         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
1997         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
1998         spin_lock_init(&adapter->mbox_lock);
1999         spin_lock_init(&adapter->mcc_lock);
2000         spin_lock_init(&adapter->mcc_cq_lock);
2001
2002         return 0;
2003 }
2004
2005 static void be_stats_cleanup(struct be_adapter *adapter)
2006 {
2007         struct be_stats_obj *stats = &adapter->stats;
2008         struct be_dma_mem *cmd = &stats->cmd;
2009
2010         if (cmd->va)
2011                 pci_free_consistent(adapter->pdev, cmd->size,
2012                         cmd->va, cmd->dma);
2013 }
2014
2015 static int be_stats_init(struct be_adapter *adapter)
2016 {
2017         struct be_stats_obj *stats = &adapter->stats;
2018         struct be_dma_mem *cmd = &stats->cmd;
2019
2020         cmd->size = sizeof(struct be_cmd_req_get_stats);
2021         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2022         if (cmd->va == NULL)
2023                 return -1;
2024         return 0;
2025 }
2026
2027 static void __devexit be_remove(struct pci_dev *pdev)
2028 {
2029         struct be_adapter *adapter = pci_get_drvdata(pdev);
2030         if (!adapter)
2031                 return;
2032
2033         unregister_netdev(adapter->netdev);
2034
2035         be_clear(adapter);
2036
2037         be_stats_cleanup(adapter);
2038
2039         be_ctrl_cleanup(adapter);
2040
2041         if (adapter->msix_enabled) {
2042                 pci_disable_msix(adapter->pdev);
2043                 adapter->msix_enabled = false;
2044         }
2045
2046         pci_set_drvdata(pdev, NULL);
2047         pci_release_regions(pdev);
2048         pci_disable_device(pdev);
2049
2050         free_netdev(adapter->netdev);
2051 }
2052
2053 static int be_hw_up(struct be_adapter *adapter)
2054 {
2055         int status;
2056
2057         status = be_cmd_POST(adapter);
2058         if (status)
2059                 return status;
2060
2061         status = be_cmd_reset_function(adapter);
2062         if (status)
2063                 return status;
2064
2065         status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2066         if (status)
2067                 return status;
2068
2069         status = be_cmd_query_fw_cfg(adapter,
2070                                 &adapter->port_num, &adapter->cap);
2071         return status;
2072 }
2073
2074 static int __devinit be_probe(struct pci_dev *pdev,
2075                         const struct pci_device_id *pdev_id)
2076 {
2077         int status = 0;
2078         struct be_adapter *adapter;
2079         struct net_device *netdev;
2080         u8 mac[ETH_ALEN];
2081
2082         status = pci_enable_device(pdev);
2083         if (status)
2084                 goto do_none;
2085
2086         status = pci_request_regions(pdev, DRV_NAME);
2087         if (status)
2088                 goto disable_dev;
2089         pci_set_master(pdev);
2090
2091         netdev = alloc_etherdev(sizeof(struct be_adapter));
2092         if (netdev == NULL) {
2093                 status = -ENOMEM;
2094                 goto rel_reg;
2095         }
2096         adapter = netdev_priv(netdev);
2097         adapter->pdev = pdev;
2098         pci_set_drvdata(pdev, adapter);
2099         adapter->netdev = netdev;
2100
2101         be_msix_enable(adapter);
2102
2103         status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2104         if (!status) {
2105                 netdev->features |= NETIF_F_HIGHDMA;
2106         } else {
2107                 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2108                 if (status) {
2109                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2110                         goto free_netdev;
2111                 }
2112         }
2113
2114         status = be_ctrl_init(adapter);
2115         if (status)
2116                 goto free_netdev;
2117
2118         status = be_stats_init(adapter);
2119         if (status)
2120                 goto ctrl_clean;
2121
2122         status = be_hw_up(adapter);
2123         if (status)
2124                 goto stats_clean;
2125
2126         status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK,
2127                         true /* permanent */, 0);
2128         if (status)
2129                 goto stats_clean;
2130         memcpy(netdev->dev_addr, mac, ETH_ALEN);
2131
2132         INIT_DELAYED_WORK(&adapter->work, be_worker);
2133         be_netdev_init(netdev);
2134         SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
2135
2136         status = be_setup(adapter);
2137         if (status)
2138                 goto stats_clean;
2139         status = register_netdev(netdev);
2140         if (status != 0)
2141                 goto unsetup;
2142
2143         dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2144         return 0;
2145
2146 unsetup:
2147         be_clear(adapter);
2148 stats_clean:
2149         be_stats_cleanup(adapter);
2150 ctrl_clean:
2151         be_ctrl_cleanup(adapter);
2152 free_netdev:
2153         free_netdev(adapter->netdev);
2154 rel_reg:
2155         pci_release_regions(pdev);
2156 disable_dev:
2157         pci_disable_device(pdev);
2158 do_none:
2159         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2160         return status;
2161 }
2162
2163 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2164 {
2165         struct be_adapter *adapter = pci_get_drvdata(pdev);
2166         struct net_device *netdev =  adapter->netdev;
2167
2168         netif_device_detach(netdev);
2169         if (netif_running(netdev)) {
2170                 rtnl_lock();
2171                 be_close(netdev);
2172                 rtnl_unlock();
2173         }
2174         be_clear(adapter);
2175
2176         pci_save_state(pdev);
2177         pci_disable_device(pdev);
2178         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2179         return 0;
2180 }
2181
2182 static int be_resume(struct pci_dev *pdev)
2183 {
2184         int status = 0;
2185         struct be_adapter *adapter = pci_get_drvdata(pdev);
2186         struct net_device *netdev =  adapter->netdev;
2187
2188         netif_device_detach(netdev);
2189
2190         status = pci_enable_device(pdev);
2191         if (status)
2192                 return status;
2193
2194         pci_set_power_state(pdev, 0);
2195         pci_restore_state(pdev);
2196
2197         be_setup(adapter);
2198         if (netif_running(netdev)) {
2199                 rtnl_lock();
2200                 be_open(netdev);
2201                 rtnl_unlock();
2202         }
2203         netif_device_attach(netdev);
2204         return 0;
2205 }
2206
2207 static struct pci_driver be_driver = {
2208         .name = DRV_NAME,
2209         .id_table = be_dev_ids,
2210         .probe = be_probe,
2211         .remove = be_remove,
2212         .suspend = be_suspend,
2213         .resume = be_resume
2214 };
2215
2216 static int __init be_init_module(void)
2217 {
2218         if (rx_frag_size != 8192 && rx_frag_size != 4096
2219                 && rx_frag_size != 2048) {
2220                 printk(KERN_WARNING DRV_NAME
2221                         " : Module param rx_frag_size must be 2048/4096/8192."
2222                         " Using 2048\n");
2223                 rx_frag_size = 2048;
2224         }
2225
2226         return pci_register_driver(&be_driver);
2227 }
2228 module_init(be_init_module);
2229
2230 static void __exit be_exit_module(void)
2231 {
2232         pci_unregister_driver(&be_driver);
2233 }
2234 module_exit(be_exit_module);