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, BE_DEVICE_ID2) },
  35         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  36         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  37         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
  38         { 0 }
  39 };
  40 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  41
  42 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
  43 {
  44         struct be_dma_mem *mem = &q->dma_mem;
  45         if (mem->va)
  46                 pci_free_consistent(adapter->pdev, mem->size,
  47                         mem->va, mem->dma);
  48 }
  49
  50 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
  51                 u16 len, u16 entry_size)
  52 {
  53         struct be_dma_mem *mem = &q->dma_mem;
  54
  55         memset(q, 0, sizeof(*q));
  56         q->len = len;
  57         q->entry_size = entry_size;
  58         mem->size = len * entry_size;
  59         mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
  60         if (!mem->va)
  61                 return -1;
  62         memset(mem->va, 0, mem->size);
  63         return 0;
  64 }
  65
  66 static void be_intr_set(struct be_adapter *adapter, bool enable)
  67 {
  68         u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
  69         u32 reg = ioread32(addr);
  70         u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  71
  72         if (!enabled && enable)
  73                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  74         else if (enabled && !enable)
  75                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  76         else
  77                 return;
  78
  79         iowrite32(reg, addr);
  80 }
  81
  82 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
  83 {
  84         u32 val = 0;
  85         val |= qid & DB_RQ_RING_ID_MASK;
  86         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
  87         iowrite32(val, adapter->db + DB_RQ_OFFSET);
  88 }
  89
  90 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
  91 {
  92         u32 val = 0;
  93         val |= qid & DB_TXULP_RING_ID_MASK;
  94         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
  95         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
  96 }
  97
  98 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
  99                 bool arm, bool clear_int, u16 num_popped)
 100 {
 101         u32 val = 0;
 102         val |= qid & DB_EQ_RING_ID_MASK;
 103         if (arm)
 104                 val |= 1 << DB_EQ_REARM_SHIFT;
 105         if (clear_int)
 106                 val |= 1 << DB_EQ_CLR_SHIFT;
 107         val |= 1 << DB_EQ_EVNT_SHIFT;
 108         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 109         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 110 }
 111
 112 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 113 {
 114         u32 val = 0;
 115         val |= qid & DB_CQ_RING_ID_MASK;
 116         if (arm)
 117                 val |= 1 << DB_CQ_REARM_SHIFT;
 118         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 119         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 120 }
 121
 122 static int be_mac_addr_set(struct net_device *netdev, void *p)
 123 {
 124         struct be_adapter *adapter = netdev_priv(netdev);
 125         struct sockaddr *addr = p;
 126         int status = 0;
 127
 128         status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
 129         if (status)
 130                 return status;
 131
 132         status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 133                         adapter->if_handle, &adapter->pmac_id);
 134         if (!status)
 135                 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 136
 137         return status;
 138 }
 139
 140 void netdev_stats_update(struct be_adapter *adapter)
 141 {
 142         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
 143         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
 144         struct be_port_rxf_stats *port_stats =
 145                         &rxf_stats->port[adapter->port_num];
 146         struct net_device_stats *dev_stats = &adapter->netdev->stats;
 147         struct be_erx_stats *erx_stats = &hw_stats->erx;
 148
 149         dev_stats->rx_packets = port_stats->rx_total_frames;
 150         dev_stats->tx_packets = port_stats->tx_unicastframes +
 151                 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
 152         dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
 153                                 (u64) port_stats->rx_bytes_lsd;
 154         dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
 155                                 (u64) port_stats->tx_bytes_lsd;
 156
 157         /* bad pkts received */
 158         dev_stats->rx_errors = port_stats->rx_crc_errors +
 159                 port_stats->rx_alignment_symbol_errors +
 160                 port_stats->rx_in_range_errors +
 161                 port_stats->rx_out_range_errors +
 162                 port_stats->rx_frame_too_long +
 163                 port_stats->rx_dropped_too_small +
 164                 port_stats->rx_dropped_too_short +
 165                 port_stats->rx_dropped_header_too_small +
 166                 port_stats->rx_dropped_tcp_length +
 167                 port_stats->rx_dropped_runt +
 168                 port_stats->rx_tcp_checksum_errs +
 169                 port_stats->rx_ip_checksum_errs +
 170                 port_stats->rx_udp_checksum_errs;
 171
 172         /*  no space in linux buffers: best possible approximation */
 173         dev_stats->rx_dropped = erx_stats->rx_drops_no_fragments[0];
 174
 175         /* detailed rx errors */
 176         dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
 177                 port_stats->rx_out_range_errors +
 178                 port_stats->rx_frame_too_long;
 179
 180         /* receive ring buffer overflow */
 181         dev_stats->rx_over_errors = 0;
 182
 183         dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
 184
 185         /* frame alignment errors */
 186         dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
 187
 188         /* receiver fifo overrun */
 189         /* drops_no_pbuf is no per i/f, it's per BE card */
 190         dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
 191                                         port_stats->rx_input_fifo_overflow +
 192                                         rxf_stats->rx_drops_no_pbuf;
 193         /* receiver missed packetd */
 194         dev_stats->rx_missed_errors = 0;
 195
 196         /*  packet transmit problems */
 197         dev_stats->tx_errors = 0;
 198
 199         /* no space available in linux */
 200         dev_stats->tx_dropped = 0;
 201
 202         dev_stats->multicast = port_stats->rx_multicast_frames;
 203         dev_stats->collisions = 0;
 204
 205         /* detailed tx_errors */
 206         dev_stats->tx_aborted_errors = 0;
 207         dev_stats->tx_carrier_errors = 0;
 208         dev_stats->tx_fifo_errors = 0;
 209         dev_stats->tx_heartbeat_errors = 0;
 210         dev_stats->tx_window_errors = 0;
 211 }
 212
 213 void be_link_status_update(struct be_adapter *adapter, bool link_up)
 214 {
 215         struct net_device *netdev = adapter->netdev;
 216
 217         /* If link came up or went down */
 218         if (adapter->link_up != link_up) {
 219                 if (link_up) {
 220                         netif_start_queue(netdev);
 221                         netif_carrier_on(netdev);
 222                         printk(KERN_INFO "%s: Link up\n", netdev->name);
 223                 } else {
 224                         netif_stop_queue(netdev);
 225                         netif_carrier_off(netdev);
 226                         printk(KERN_INFO "%s: Link down\n", netdev->name);
 227                 }
 228                 adapter->link_up = link_up;
 229         }
 230 }
 231
 232 /* Update the EQ delay n BE based on the RX frags consumed / sec */
 233 static void be_rx_eqd_update(struct be_adapter *adapter)
 234 {
 235         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 236         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 237         ulong now = jiffies;
 238         u32 eqd;
 239
 240         if (!rx_eq->enable_aic)
 241                 return;
 242
 243         /* Wrapped around */
 244         if (time_before(now, stats->rx_fps_jiffies)) {
 245                 stats->rx_fps_jiffies = now;
 246                 return;
 247         }
 248
 249         /* Update once a second */
 250         if ((now - stats->rx_fps_jiffies) < HZ)
 251                 return;
 252
 253         stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
 254                         ((now - stats->rx_fps_jiffies) / HZ);
 255
 256         stats->rx_fps_jiffies = now;
 257         stats->be_prev_rx_frags = stats->be_rx_frags;
 258         eqd = stats->be_rx_fps / 110000;
 259         eqd = eqd << 3;
 260         if (eqd > rx_eq->max_eqd)
 261                 eqd = rx_eq->max_eqd;
 262         if (eqd < rx_eq->min_eqd)
 263                 eqd = rx_eq->min_eqd;
 264         if (eqd < 10)
 265                 eqd = 0;
 266         if (eqd != rx_eq->cur_eqd)
 267                 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
 268
 269         rx_eq->cur_eqd = eqd;
 270 }
 271
 272 static struct net_device_stats *be_get_stats(struct net_device *dev)
 273 {
 274         return &dev->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_ip_align(adapter->netdev, BE_HDR_LEN);
 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_fill_rx_data(adapter, skb, rxcp);
 770
 771         if (do_pkt_csum(rxcp, adapter->rx_csum))
 772                 skb->ip_summed = CHECKSUM_NONE;
 773         else
 774                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 775
 776         skb->truesize = skb->len + sizeof(struct sk_buff);
 777         skb->protocol = eth_type_trans(skb, adapter->netdev);
 778         skb->dev = adapter->netdev;
 779
 780         if (vlanf) {
 781                 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
 782                         kfree_skb(skb);
 783                         return;
 784                 }
 785                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 786                 vid = be16_to_cpu(vid);
 787                 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
 788         } else {
 789                 netif_receive_skb(skb);
 790         }
 791
 792         return;
 793 }
 794
 795 /* Process the RX completion indicated by rxcp when GRO is enabled */
 796 static void be_rx_compl_process_gro(struct be_adapter *adapter,
 797                         struct be_eth_rx_compl *rxcp)
 798 {
 799         struct be_rx_page_info *page_info;
 800         struct sk_buff *skb = NULL;
 801         struct be_queue_info *rxq = &adapter->rx_obj.q;
 802         struct be_eq_obj *eq_obj =  &adapter->rx_eq;
 803         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
 804         u16 i, rxq_idx = 0, vid, j;
 805         u8 vtm;
 806
 807         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 808         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 809         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 810         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 811         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 812
 813         /* vlanf could be wrongly set in some cards.
 814          * ignore if vtm is not set */
 815         if ((adapter->cap == 0x400) && !vtm)
 816                 vlanf = 0;
 817
 818         skb = napi_get_frags(&eq_obj->napi);
 819         if (!skb) {
 820                 be_rx_compl_discard(adapter, rxcp);
 821                 return;
 822         }
 823
 824         remaining = pkt_size;
 825         for (i = 0, j = -1; i < num_rcvd; i++) {
 826                 page_info = get_rx_page_info(adapter, rxq_idx);
 827
 828                 curr_frag_len = min(remaining, rx_frag_size);
 829
 830                 /* Coalesce all frags from the same physical page in one slot */
 831                 if (i == 0 || page_info->page_offset == 0) {
 832                         /* First frag or Fresh page */
 833                         j++;
 834                         skb_shinfo(skb)->frags[j].page = page_info->page;
 835                         skb_shinfo(skb)->frags[j].page_offset =
 836                                                         page_info->page_offset;
 837                         skb_shinfo(skb)->frags[j].size = 0;
 838                 } else {
 839                         put_page(page_info->page);
 840                 }
 841                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 842
 843                 remaining -= curr_frag_len;
 844                 index_inc(&rxq_idx, rxq->len);
 845                 memset(page_info, 0, sizeof(*page_info));
 846         }
 847         BUG_ON(j > MAX_SKB_FRAGS);
 848
 849         skb_shinfo(skb)->nr_frags = j + 1;
 850         skb->len = pkt_size;
 851         skb->data_len = pkt_size;
 852         skb->truesize += pkt_size;
 853         skb->ip_summed = CHECKSUM_UNNECESSARY;
 854
 855         if (likely(!vlanf)) {
 856                 napi_gro_frags(&eq_obj->napi);
 857         } else {
 858                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 859                 vid = be16_to_cpu(vid);
 860
 861                 if (!adapter->vlan_grp || adapter->num_vlans == 0)
 862                         return;
 863
 864                 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
 865         }
 866
 867         be_rx_stats_update(adapter, pkt_size, num_rcvd);
 868         return;
 869 }
 870
 871 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
 872 {
 873         struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
 874
 875         if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
 876                 return NULL;
 877
 878         be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
 879
 880         queue_tail_inc(&adapter->rx_obj.cq);
 881         return rxcp;
 882 }
 883
 884 /* To reset the valid bit, we need to reset the whole word as
 885  * when walking the queue the valid entries are little-endian
 886  * and invalid entries are host endian
 887  */
 888 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
 889 {
 890         rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
 891 }
 892
 893 static inline struct page *be_alloc_pages(u32 size)
 894 {
 895         gfp_t alloc_flags = GFP_ATOMIC;
 896         u32 order = get_order(size);
 897         if (order > 0)
 898                 alloc_flags |= __GFP_COMP;
 899         return  alloc_pages(alloc_flags, order);
 900 }
 901
 902 /*
 903  * Allocate a page, split it to fragments of size rx_frag_size and post as
 904  * receive buffers to BE
 905  */
 906 static void be_post_rx_frags(struct be_adapter *adapter)
 907 {
 908         struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
 909         struct be_rx_page_info *page_info = NULL;
 910         struct be_queue_info *rxq = &adapter->rx_obj.q;
 911         struct page *pagep = NULL;
 912         struct be_eth_rx_d *rxd;
 913         u64 page_dmaaddr = 0, frag_dmaaddr;
 914         u32 posted, page_offset = 0;
 915
 916         page_info = &page_info_tbl[rxq->head];
 917         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
 918                 if (!pagep) {
 919                         pagep = be_alloc_pages(adapter->big_page_size);
 920                         if (unlikely(!pagep)) {
 921                                 drvr_stats(adapter)->be_ethrx_post_fail++;
 922                                 break;
 923                         }
 924                         page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
 925                                                 adapter->big_page_size,
 926                                                 PCI_DMA_FROMDEVICE);
 927                         page_info->page_offset = 0;
 928                 } else {
 929                         get_page(pagep);
 930                         page_info->page_offset = page_offset + rx_frag_size;
 931                 }
 932                 page_offset = page_info->page_offset;
 933                 page_info->page = pagep;
 934                 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
 935                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
 936
 937                 rxd = queue_head_node(rxq);
 938                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
 939                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
 940                 queue_head_inc(rxq);
 941
 942                 /* Any space left in the current big page for another frag? */
 943                 if ((page_offset + rx_frag_size + rx_frag_size) >
 944                                         adapter->big_page_size) {
 945                         pagep = NULL;
 946                         page_info->last_page_user = true;
 947                 }
 948                 page_info = &page_info_tbl[rxq->head];
 949         }
 950         if (pagep)
 951                 page_info->last_page_user = true;
 952
 953         if (posted) {
 954                 atomic_add(posted, &rxq->used);
 955                 be_rxq_notify(adapter, rxq->id, posted);
 956         } else if (atomic_read(&rxq->used) == 0) {
 957                 /* Let be_worker replenish when memory is available */
 958                 adapter->rx_post_starved = true;
 959         }
 960
 961         return;
 962 }
 963
 964 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
 965 {
 966         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
 967
 968         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
 969                 return NULL;
 970
 971         be_dws_le_to_cpu(txcp, sizeof(*txcp));
 972
 973         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
 974
 975         queue_tail_inc(tx_cq);
 976         return txcp;
 977 }
 978
 979 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
 980 {
 981         struct be_queue_info *txq = &adapter->tx_obj.q;
 982         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
 983         struct sk_buff *sent_skb;
 984         u16 cur_index, num_wrbs = 0;
 985
 986         cur_index = txq->tail;
 987         sent_skb = sent_skbs[cur_index];
 988         BUG_ON(!sent_skb);
 989         sent_skbs[cur_index] = NULL;
 990
 991         do {
 992                 cur_index = txq->tail;
 993                 num_wrbs++;
 994                 queue_tail_inc(txq);
 995         } while (cur_index != last_index);
 996
 997         atomic_sub(num_wrbs, &txq->used);
 998         skb_dma_unmap(&adapter->pdev->dev, sent_skb, DMA_TO_DEVICE);
 999         kfree_skb(sent_skb);
1000 }
1001
1002 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1003 {
1004         struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1005
1006         if (!eqe->evt)
1007                 return NULL;
1008
1009         eqe->evt = le32_to_cpu(eqe->evt);
1010         queue_tail_inc(&eq_obj->q);
1011         return eqe;
1012 }
1013
1014 static int event_handle(struct be_adapter *adapter,
1015                         struct be_eq_obj *eq_obj)
1016 {
1017         struct be_eq_entry *eqe;
1018         u16 num = 0;
1019
1020         while ((eqe = event_get(eq_obj)) != NULL) {
1021                 eqe->evt = 0;
1022                 num++;
1023         }
1024
1025         /* Deal with any spurious interrupts that come
1026          * without events
1027          */
1028         be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1029         if (num)
1030                 napi_schedule(&eq_obj->napi);
1031
1032         return num;
1033 }
1034
1035 /* Just read and notify events without processing them.
1036  * Used at the time of destroying event queues */
1037 static void be_eq_clean(struct be_adapter *adapter,
1038                         struct be_eq_obj *eq_obj)
1039 {
1040         struct be_eq_entry *eqe;
1041         u16 num = 0;
1042
1043         while ((eqe = event_get(eq_obj)) != NULL) {
1044                 eqe->evt = 0;
1045                 num++;
1046         }
1047
1048         if (num)
1049                 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1050 }
1051
1052 static void be_rx_q_clean(struct be_adapter *adapter)
1053 {
1054         struct be_rx_page_info *page_info;
1055         struct be_queue_info *rxq = &adapter->rx_obj.q;
1056         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1057         struct be_eth_rx_compl *rxcp;
1058         u16 tail;
1059
1060         /* First cleanup pending rx completions */
1061         while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1062                 be_rx_compl_discard(adapter, rxcp);
1063                 be_rx_compl_reset(rxcp);
1064                 be_cq_notify(adapter, rx_cq->id, true, 1);
1065         }
1066
1067         /* Then free posted rx buffer that were not used */
1068         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1069         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1070                 page_info = get_rx_page_info(adapter, tail);
1071                 put_page(page_info->page);
1072                 memset(page_info, 0, sizeof(*page_info));
1073         }
1074         BUG_ON(atomic_read(&rxq->used));
1075 }
1076
1077 static void be_tx_compl_clean(struct be_adapter *adapter)
1078 {
1079         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1080         struct be_queue_info *txq = &adapter->tx_obj.q;
1081         struct be_eth_tx_compl *txcp;
1082         u16 end_idx, cmpl = 0, timeo = 0;
1083
1084         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1085         do {
1086                 while ((txcp = be_tx_compl_get(tx_cq))) {
1087                         end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1088                                         wrb_index, txcp);
1089                         be_tx_compl_process(adapter, end_idx);
1090                         cmpl++;
1091                 }
1092                 if (cmpl) {
1093                         be_cq_notify(adapter, tx_cq->id, false, cmpl);
1094                         cmpl = 0;
1095                 }
1096
1097                 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1098                         break;
1099
1100                 mdelay(1);
1101         } while (true);
1102
1103         if (atomic_read(&txq->used))
1104                 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1105                         atomic_read(&txq->used));
1106 }
1107
1108 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1109 {
1110         struct be_queue_info *q;
1111
1112         q = &adapter->mcc_obj.q;
1113         if (q->created)
1114                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1115         be_queue_free(adapter, q);
1116
1117         q = &adapter->mcc_obj.cq;
1118         if (q->created)
1119                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1120         be_queue_free(adapter, q);
1121 }
1122
1123 /* Must be called only after TX qs are created as MCC shares TX EQ */
1124 static int be_mcc_queues_create(struct be_adapter *adapter)
1125 {
1126         struct be_queue_info *q, *cq;
1127
1128         /* Alloc MCC compl queue */
1129         cq = &adapter->mcc_obj.cq;
1130         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1131                         sizeof(struct be_mcc_compl)))
1132                 goto err;
1133
1134         /* Ask BE to create MCC compl queue; share TX's eq */
1135         if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1136                 goto mcc_cq_free;
1137
1138         /* Alloc MCC queue */
1139         q = &adapter->mcc_obj.q;
1140         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1141                 goto mcc_cq_destroy;
1142
1143         /* Ask BE to create MCC queue */
1144         if (be_cmd_mccq_create(adapter, q, cq))
1145                 goto mcc_q_free;
1146
1147         return 0;
1148
1149 mcc_q_free:
1150         be_queue_free(adapter, q);
1151 mcc_cq_destroy:
1152         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1153 mcc_cq_free:
1154         be_queue_free(adapter, cq);
1155 err:
1156         return -1;
1157 }
1158
1159 static void be_tx_queues_destroy(struct be_adapter *adapter)
1160 {
1161         struct be_queue_info *q;
1162
1163         q = &adapter->tx_obj.q;
1164         if (q->created)
1165                 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1166         be_queue_free(adapter, q);
1167
1168         q = &adapter->tx_obj.cq;
1169         if (q->created)
1170                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1171         be_queue_free(adapter, q);
1172
1173         /* Clear any residual events */
1174         be_eq_clean(adapter, &adapter->tx_eq);
1175
1176         q = &adapter->tx_eq.q;
1177         if (q->created)
1178                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1179         be_queue_free(adapter, q);
1180 }
1181
1182 static int be_tx_queues_create(struct be_adapter *adapter)
1183 {
1184         struct be_queue_info *eq, *q, *cq;
1185
1186         adapter->tx_eq.max_eqd = 0;
1187         adapter->tx_eq.min_eqd = 0;
1188         adapter->tx_eq.cur_eqd = 96;
1189         adapter->tx_eq.enable_aic = false;
1190         /* Alloc Tx Event queue */
1191         eq = &adapter->tx_eq.q;
1192         if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1193                 return -1;
1194
1195         /* Ask BE to create Tx Event queue */
1196         if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1197                 goto tx_eq_free;
1198         /* Alloc TX eth compl queue */
1199         cq = &adapter->tx_obj.cq;
1200         if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1201                         sizeof(struct be_eth_tx_compl)))
1202                 goto tx_eq_destroy;
1203
1204         /* Ask BE to create Tx eth compl queue */
1205         if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1206                 goto tx_cq_free;
1207
1208         /* Alloc TX eth queue */
1209         q = &adapter->tx_obj.q;
1210         if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1211                 goto tx_cq_destroy;
1212
1213         /* Ask BE to create Tx eth queue */
1214         if (be_cmd_txq_create(adapter, q, cq))
1215                 goto tx_q_free;
1216         return 0;
1217
1218 tx_q_free:
1219         be_queue_free(adapter, q);
1220 tx_cq_destroy:
1221         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1222 tx_cq_free:
1223         be_queue_free(adapter, cq);
1224 tx_eq_destroy:
1225         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1226 tx_eq_free:
1227         be_queue_free(adapter, eq);
1228         return -1;
1229 }
1230
1231 static void be_rx_queues_destroy(struct be_adapter *adapter)
1232 {
1233         struct be_queue_info *q;
1234
1235         q = &adapter->rx_obj.q;
1236         if (q->created) {
1237                 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1238                 be_rx_q_clean(adapter);
1239         }
1240         be_queue_free(adapter, q);
1241
1242         q = &adapter->rx_obj.cq;
1243         if (q->created)
1244                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1245         be_queue_free(adapter, q);
1246
1247         /* Clear any residual events */
1248         be_eq_clean(adapter, &adapter->rx_eq);
1249
1250         q = &adapter->rx_eq.q;
1251         if (q->created)
1252                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1253         be_queue_free(adapter, q);
1254 }
1255
1256 static int be_rx_queues_create(struct be_adapter *adapter)
1257 {
1258         struct be_queue_info *eq, *q, *cq;
1259         int rc;
1260
1261         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1262         adapter->rx_eq.max_eqd = BE_MAX_EQD;
1263         adapter->rx_eq.min_eqd = 0;
1264         adapter->rx_eq.cur_eqd = 0;
1265         adapter->rx_eq.enable_aic = true;
1266
1267         /* Alloc Rx Event queue */
1268         eq = &adapter->rx_eq.q;
1269         rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1270                                 sizeof(struct be_eq_entry));
1271         if (rc)
1272                 return rc;
1273
1274         /* Ask BE to create Rx Event queue */
1275         rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1276         if (rc)
1277                 goto rx_eq_free;
1278
1279         /* Alloc RX eth compl queue */
1280         cq = &adapter->rx_obj.cq;
1281         rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1282                         sizeof(struct be_eth_rx_compl));
1283         if (rc)
1284                 goto rx_eq_destroy;
1285
1286         /* Ask BE to create Rx eth compl queue */
1287         rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1288         if (rc)
1289                 goto rx_cq_free;
1290
1291         /* Alloc RX eth queue */
1292         q = &adapter->rx_obj.q;
1293         rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1294         if (rc)
1295                 goto rx_cq_destroy;
1296
1297         /* Ask BE to create Rx eth queue */
1298         rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1299                 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1300         if (rc)
1301                 goto rx_q_free;
1302
1303         return 0;
1304 rx_q_free:
1305         be_queue_free(adapter, q);
1306 rx_cq_destroy:
1307         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1308 rx_cq_free:
1309         be_queue_free(adapter, cq);
1310 rx_eq_destroy:
1311         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1312 rx_eq_free:
1313         be_queue_free(adapter, eq);
1314         return rc;
1315 }
1316
1317 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1318 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1319 {
1320         return eq_id - 8 * be_pci_func(adapter);
1321 }
1322
1323 static irqreturn_t be_intx(int irq, void *dev)
1324 {
1325         struct be_adapter *adapter = dev;
1326         int isr;
1327
1328         isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1329                         be_pci_func(adapter) * CEV_ISR_SIZE);
1330         if (!isr)
1331                 return IRQ_NONE;
1332
1333         event_handle(adapter, &adapter->tx_eq);
1334         event_handle(adapter, &adapter->rx_eq);
1335
1336         return IRQ_HANDLED;
1337 }
1338
1339 static irqreturn_t be_msix_rx(int irq, void *dev)
1340 {
1341         struct be_adapter *adapter = dev;
1342
1343         event_handle(adapter, &adapter->rx_eq);
1344
1345         return IRQ_HANDLED;
1346 }
1347
1348 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1349 {
1350         struct be_adapter *adapter = dev;
1351
1352         event_handle(adapter, &adapter->tx_eq);
1353
1354         return IRQ_HANDLED;
1355 }
1356
1357 static inline bool do_gro(struct be_adapter *adapter,
1358                         struct be_eth_rx_compl *rxcp)
1359 {
1360         int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1361         int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1362
1363         if (err)
1364                 drvr_stats(adapter)->be_rxcp_err++;
1365
1366         return (tcp_frame && !err) ? true : false;
1367 }
1368
1369 int be_poll_rx(struct napi_struct *napi, int budget)
1370 {
1371         struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1372         struct be_adapter *adapter =
1373                 container_of(rx_eq, struct be_adapter, rx_eq);
1374         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1375         struct be_eth_rx_compl *rxcp;
1376         u32 work_done;
1377
1378         for (work_done = 0; work_done < budget; work_done++) {
1379                 rxcp = be_rx_compl_get(adapter);
1380                 if (!rxcp)
1381                         break;
1382
1383                 if (do_gro(adapter, rxcp))
1384                         be_rx_compl_process_gro(adapter, rxcp);
1385                 else
1386                         be_rx_compl_process(adapter, rxcp);
1387
1388                 be_rx_compl_reset(rxcp);
1389         }
1390
1391         /* Refill the queue */
1392         if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1393                 be_post_rx_frags(adapter);
1394
1395         /* All consumed */
1396         if (work_done < budget) {
1397                 napi_complete(napi);
1398                 be_cq_notify(adapter, rx_cq->id, true, work_done);
1399         } else {
1400                 /* More to be consumed; continue with interrupts disabled */
1401                 be_cq_notify(adapter, rx_cq->id, false, work_done);
1402         }
1403         return work_done;
1404 }
1405
1406 void be_process_tx(struct be_adapter *adapter)
1407 {
1408         struct be_queue_info *txq = &adapter->tx_obj.q;
1409         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1410         struct be_eth_tx_compl *txcp;
1411         u32 num_cmpl = 0;
1412         u16 end_idx;
1413
1414         while ((txcp = be_tx_compl_get(tx_cq))) {
1415                 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1416                                         wrb_index, txcp);
1417                 be_tx_compl_process(adapter, end_idx);
1418                 num_cmpl++;
1419         }
1420
1421         if (num_cmpl) {
1422                 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1423
1424                 /* As Tx wrbs have been freed up, wake up netdev queue if
1425                  * it was stopped due to lack of tx wrbs.
1426                  */
1427                 if (netif_queue_stopped(adapter->netdev) &&
1428                         atomic_read(&txq->used) < txq->len / 2) {
1429                         netif_wake_queue(adapter->netdev);
1430                 }
1431
1432                 drvr_stats(adapter)->be_tx_events++;
1433                 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1434         }
1435 }
1436
1437 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1438  * For TX/MCC we don't honour budget; consume everything
1439  */
1440 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1441 {
1442         struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1443         struct be_adapter *adapter =
1444                 container_of(tx_eq, struct be_adapter, tx_eq);
1445
1446         napi_complete(napi);
1447
1448         be_process_tx(adapter);
1449
1450         be_process_mcc(adapter);
1451
1452         return 1;
1453 }
1454
1455 static void be_worker(struct work_struct *work)
1456 {
1457         struct be_adapter *adapter =
1458                 container_of(work, struct be_adapter, work.work);
1459
1460         be_cmd_get_stats(adapter, &adapter->stats.cmd);
1461
1462         /* Set EQ delay */
1463         be_rx_eqd_update(adapter);
1464
1465         be_tx_rate_update(adapter);
1466         be_rx_rate_update(adapter);
1467
1468         if (adapter->rx_post_starved) {
1469                 adapter->rx_post_starved = false;
1470                 be_post_rx_frags(adapter);
1471         }
1472
1473         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1474 }
1475
1476 static void be_msix_enable(struct be_adapter *adapter)
1477 {
1478         int i, status;
1479
1480         for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1481                 adapter->msix_entries[i].entry = i;
1482
1483         status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1484                 BE_NUM_MSIX_VECTORS);
1485         if (status == 0)
1486                 adapter->msix_enabled = true;
1487         return;
1488 }
1489
1490 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1491 {
1492         return adapter->msix_entries[
1493                         be_evt_bit_get(adapter, eq_id)].vector;
1494 }
1495
1496 static int be_request_irq(struct be_adapter *adapter,
1497                 struct be_eq_obj *eq_obj,
1498                 void *handler, char *desc)
1499 {
1500         struct net_device *netdev = adapter->netdev;
1501         int vec;
1502
1503         sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1504         vec = be_msix_vec_get(adapter, eq_obj->q.id);
1505         return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1506 }
1507
1508 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1509 {
1510         int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1511         free_irq(vec, adapter);
1512 }
1513
1514 static int be_msix_register(struct be_adapter *adapter)
1515 {
1516         int status;
1517
1518         status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1519         if (status)
1520                 goto err;
1521
1522         status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1523         if (status)
1524                 goto free_tx_irq;
1525
1526         return 0;
1527
1528 free_tx_irq:
1529         be_free_irq(adapter, &adapter->tx_eq);
1530 err:
1531         dev_warn(&adapter->pdev->dev,
1532                 "MSIX Request IRQ failed - err %d\n", status);
1533         pci_disable_msix(adapter->pdev);
1534         adapter->msix_enabled = false;
1535         return status;
1536 }
1537
1538 static int be_irq_register(struct be_adapter *adapter)
1539 {
1540         struct net_device *netdev = adapter->netdev;
1541         int status;
1542
1543         if (adapter->msix_enabled) {
1544                 status = be_msix_register(adapter);
1545                 if (status == 0)
1546                         goto done;
1547         }
1548
1549         /* INTx */
1550         netdev->irq = adapter->pdev->irq;
1551         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1552                         adapter);
1553         if (status) {
1554                 dev_err(&adapter->pdev->dev,
1555                         "INTx request IRQ failed - err %d\n", status);
1556                 return status;
1557         }
1558 done:
1559         adapter->isr_registered = true;
1560         return 0;
1561 }
1562
1563 static void be_irq_unregister(struct be_adapter *adapter)
1564 {
1565         struct net_device *netdev = adapter->netdev;
1566
1567         if (!adapter->isr_registered)
1568                 return;
1569
1570         /* INTx */
1571         if (!adapter->msix_enabled) {
1572                 free_irq(netdev->irq, adapter);
1573                 goto done;
1574         }
1575
1576         /* MSIx */
1577         be_free_irq(adapter, &adapter->tx_eq);
1578         be_free_irq(adapter, &adapter->rx_eq);
1579 done:
1580         adapter->isr_registered = false;
1581         return;
1582 }
1583
1584 static int be_open(struct net_device *netdev)
1585 {
1586         struct be_adapter *adapter = netdev_priv(netdev);
1587         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1588         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1589         bool link_up;
1590         int status;
1591         u8 mac_speed;
1592         u16 link_speed;
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, &mac_speed,
1612                         &link_speed);
1613         if (status)
1614                 goto ret_sts;
1615         be_link_status_update(adapter, link_up);
1616
1617         status = be_vid_config(adapter);
1618         if (status)
1619                 goto ret_sts;
1620
1621         status = be_cmd_set_flow_control(adapter,
1622                                         adapter->tx_fc, adapter->rx_fc);
1623         if (status)
1624                 goto ret_sts;
1625
1626         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1627 ret_sts:
1628         return status;
1629 }
1630
1631 static int be_setup(struct be_adapter *adapter)
1632 {
1633         struct net_device *netdev = adapter->netdev;
1634         u32 cap_flags, en_flags;
1635         int status;
1636
1637         cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1638                         BE_IF_FLAGS_MCAST_PROMISCUOUS |
1639                         BE_IF_FLAGS_PROMISCUOUS |
1640                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1641         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1642                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1643
1644         status = be_cmd_if_create(adapter, cap_flags, en_flags,
1645                         netdev->dev_addr, false/* pmac_invalid */,
1646                         &adapter->if_handle, &adapter->pmac_id);
1647         if (status != 0)
1648                 goto do_none;
1649
1650         status = be_tx_queues_create(adapter);
1651         if (status != 0)
1652                 goto if_destroy;
1653
1654         status = be_rx_queues_create(adapter);
1655         if (status != 0)
1656                 goto tx_qs_destroy;
1657
1658         status = be_mcc_queues_create(adapter);
1659         if (status != 0)
1660                 goto rx_qs_destroy;
1661
1662         return 0;
1663
1664 rx_qs_destroy:
1665         be_rx_queues_destroy(adapter);
1666 tx_qs_destroy:
1667         be_tx_queues_destroy(adapter);
1668 if_destroy:
1669         be_cmd_if_destroy(adapter, adapter->if_handle);
1670 do_none:
1671         return status;
1672 }
1673
1674 static int be_clear(struct be_adapter *adapter)
1675 {
1676         be_mcc_queues_destroy(adapter);
1677         be_rx_queues_destroy(adapter);
1678         be_tx_queues_destroy(adapter);
1679
1680         be_cmd_if_destroy(adapter, adapter->if_handle);
1681
1682         return 0;
1683 }
1684
1685 static int be_close(struct net_device *netdev)
1686 {
1687         struct be_adapter *adapter = netdev_priv(netdev);
1688         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1689         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1690         int vec;
1691
1692         cancel_delayed_work_sync(&adapter->work);
1693
1694         netif_stop_queue(netdev);
1695         netif_carrier_off(netdev);
1696         adapter->link_up = false;
1697
1698         be_intr_set(adapter, false);
1699
1700         if (adapter->msix_enabled) {
1701                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1702                 synchronize_irq(vec);
1703                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1704                 synchronize_irq(vec);
1705         } else {
1706                 synchronize_irq(netdev->irq);
1707         }
1708         be_irq_unregister(adapter);
1709
1710         napi_disable(&rx_eq->napi);
1711         napi_disable(&tx_eq->napi);
1712
1713         /* Wait for all pending tx completions to arrive so that
1714          * all tx skbs are freed.
1715          */
1716         be_tx_compl_clean(adapter);
1717
1718         return 0;
1719 }
1720
1721 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
1722 char flash_cookie[2][16] =      {"*** SE FLAS",
1723                                 "H DIRECTORY *** "};
1724
1725 static bool be_flash_redboot(struct be_adapter *adapter,
1726                         const u8 *p)
1727 {
1728         u32 crc_offset;
1729         u8 flashed_crc[4];
1730         int status;
1731         crc_offset = FLASH_REDBOOT_START + FLASH_REDBOOT_IMAGE_MAX_SIZE - 4
1732                         + sizeof(struct flash_file_hdr) - 32*1024;
1733         p += crc_offset;
1734         status = be_cmd_get_flash_crc(adapter, flashed_crc);
1735         if (status) {
1736                 dev_err(&adapter->pdev->dev,
1737                 "could not get crc from flash, not flashing redboot\n");
1738                 return false;
1739         }
1740
1741         /*update redboot only if crc does not match*/
1742         if (!memcmp(flashed_crc, p, 4))
1743                 return false;
1744         else
1745                 return true;
1746
1747 }
1748
1749 static int be_flash_image(struct be_adapter *adapter,
1750                         const struct firmware *fw,
1751                         struct be_dma_mem *flash_cmd, u32 flash_type)
1752 {
1753         int status;
1754         u32 flash_op, image_offset = 0, total_bytes, image_size = 0;
1755         int num_bytes;
1756         const u8 *p = fw->data;
1757         struct be_cmd_write_flashrom *req = flash_cmd->va;
1758
1759         switch (flash_type) {
1760         case FLASHROM_TYPE_ISCSI_ACTIVE:
1761                 image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START;
1762                 image_size = FLASH_IMAGE_MAX_SIZE;
1763                 break;
1764         case FLASHROM_TYPE_ISCSI_BACKUP:
1765                 image_offset = FLASH_iSCSI_BACKUP_IMAGE_START;
1766                 image_size = FLASH_IMAGE_MAX_SIZE;
1767                 break;
1768         case FLASHROM_TYPE_FCOE_FW_ACTIVE:
1769                 image_offset = FLASH_FCoE_PRIMARY_IMAGE_START;
1770                 image_size = FLASH_IMAGE_MAX_SIZE;
1771                 break;
1772         case FLASHROM_TYPE_FCOE_FW_BACKUP:
1773                 image_offset = FLASH_FCoE_BACKUP_IMAGE_START;
1774                 image_size = FLASH_IMAGE_MAX_SIZE;
1775                 break;
1776         case FLASHROM_TYPE_BIOS:
1777                 image_offset = FLASH_iSCSI_BIOS_START;
1778                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1779                 break;
1780         case FLASHROM_TYPE_FCOE_BIOS:
1781                 image_offset = FLASH_FCoE_BIOS_START;
1782                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1783                 break;
1784         case FLASHROM_TYPE_PXE_BIOS:
1785                 image_offset = FLASH_PXE_BIOS_START;
1786                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1787                 break;
1788         case FLASHROM_TYPE_REDBOOT:
1789                 if (!be_flash_redboot(adapter, fw->data))
1790                         return 0;
1791                 image_offset = FLASH_REDBOOT_ISM_START;
1792                 image_size = FLASH_REDBOOT_IMAGE_MAX_SIZE;
1793                 break;
1794         default:
1795                 return 0;
1796         }
1797
1798         p += sizeof(struct flash_file_hdr) + image_offset;
1799         if (p + image_size > fw->data + fw->size)
1800                 return -1;
1801
1802         total_bytes = image_size;
1803
1804         while (total_bytes) {
1805                 if (total_bytes > 32*1024)
1806                         num_bytes = 32*1024;
1807                 else
1808                         num_bytes = total_bytes;
1809                 total_bytes -= num_bytes;
1810
1811                 if (!total_bytes)
1812                         flash_op = FLASHROM_OPER_FLASH;
1813                 else
1814                         flash_op = FLASHROM_OPER_SAVE;
1815                 memcpy(req->params.data_buf, p, num_bytes);
1816                 p += num_bytes;
1817                 status = be_cmd_write_flashrom(adapter, flash_cmd,
1818                                 flash_type, flash_op, num_bytes);
1819                 if (status) {
1820                         dev_err(&adapter->pdev->dev,
1821                         "cmd to write to flash rom failed. type/op %d/%d\n",
1822                         flash_type, flash_op);
1823                         return -1;
1824                 }
1825                 yield();
1826         }
1827
1828         return 0;
1829 }
1830
1831 int be_load_fw(struct be_adapter *adapter, u8 *func)
1832 {
1833         char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1834         const struct firmware *fw;
1835         struct flash_file_hdr *fhdr;
1836         struct flash_section_info *fsec = NULL;
1837         struct be_dma_mem flash_cmd;
1838         int status;
1839         const u8 *p;
1840         bool entry_found = false;
1841         int flash_type;
1842         char fw_ver[FW_VER_LEN];
1843         char fw_cfg;
1844
1845         status = be_cmd_get_fw_ver(adapter, fw_ver);
1846         if (status)
1847                 return status;
1848
1849         fw_cfg = *(fw_ver + 2);
1850         if (fw_cfg == '0')
1851                 fw_cfg = '1';
1852         strcpy(fw_file, func);
1853
1854         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1855         if (status)
1856                 goto fw_exit;
1857
1858         p = fw->data;
1859         fhdr = (struct flash_file_hdr *) p;
1860         if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) {
1861                 dev_err(&adapter->pdev->dev,
1862                         "Firmware(%s) load error (signature did not match)\n",
1863                                 fw_file);
1864                 status = -1;
1865                 goto fw_exit;
1866         }
1867
1868         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1869
1870         p += sizeof(struct flash_file_hdr);
1871         while (p < (fw->data + fw->size)) {
1872                 fsec = (struct flash_section_info *)p;
1873                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) {
1874                         entry_found = true;
1875                         break;
1876                 }
1877                 p += 32;
1878         }
1879
1880         if (!entry_found) {
1881                 status = -1;
1882                 dev_err(&adapter->pdev->dev,
1883                         "Flash cookie not found in firmware image\n");
1884                 goto fw_exit;
1885         }
1886
1887         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1888         flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1889                                         &flash_cmd.dma);
1890         if (!flash_cmd.va) {
1891                 status = -ENOMEM;
1892                 dev_err(&adapter->pdev->dev,
1893                         "Memory allocation failure while flashing\n");
1894                 goto fw_exit;
1895         }
1896
1897         for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE;
1898                 flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) {
1899                 status = be_flash_image(adapter, fw, &flash_cmd,
1900                                 flash_type);
1901                 if (status)
1902                         break;
1903         }
1904
1905         pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1906                                 flash_cmd.dma);
1907         if (status) {
1908                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
1909                 goto fw_exit;
1910         }
1911
1912         dev_info(&adapter->pdev->dev, "Firmware flashed succesfully\n");
1913
1914 fw_exit:
1915         release_firmware(fw);
1916         return status;
1917 }
1918
1919 static struct net_device_ops be_netdev_ops = {
1920         .ndo_open               = be_open,
1921         .ndo_stop               = be_close,
1922         .ndo_start_xmit         = be_xmit,
1923         .ndo_get_stats          = be_get_stats,
1924         .ndo_set_rx_mode        = be_set_multicast_list,
1925         .ndo_set_mac_address    = be_mac_addr_set,
1926         .ndo_change_mtu         = be_change_mtu,
1927         .ndo_validate_addr      = eth_validate_addr,
1928         .ndo_vlan_rx_register   = be_vlan_register,
1929         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
1930         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
1931 };
1932
1933 static void be_netdev_init(struct net_device *netdev)
1934 {
1935         struct be_adapter *adapter = netdev_priv(netdev);
1936
1937         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1938                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
1939                 NETIF_F_GRO;
1940
1941         netdev->flags |= IFF_MULTICAST;
1942
1943         adapter->rx_csum = true;
1944
1945         /* Default settings for Rx and Tx flow control */
1946         adapter->rx_fc = true;
1947         adapter->tx_fc = true;
1948
1949         netif_set_gso_max_size(netdev, 65535);
1950
1951         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1952
1953         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1954
1955         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1956                 BE_NAPI_WEIGHT);
1957         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
1958                 BE_NAPI_WEIGHT);
1959
1960         netif_carrier_off(netdev);
1961         netif_stop_queue(netdev);
1962 }
1963
1964 static void be_unmap_pci_bars(struct be_adapter *adapter)
1965 {
1966         if (adapter->csr)
1967                 iounmap(adapter->csr);
1968         if (adapter->db)
1969                 iounmap(adapter->db);
1970         if (adapter->pcicfg)
1971                 iounmap(adapter->pcicfg);
1972 }
1973
1974 static int be_map_pci_bars(struct be_adapter *adapter)
1975 {
1976         u8 __iomem *addr;
1977
1978         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
1979                         pci_resource_len(adapter->pdev, 2));
1980         if (addr == NULL)
1981                 return -ENOMEM;
1982         adapter->csr = addr;
1983
1984         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
1985                         128 * 1024);
1986         if (addr == NULL)
1987                 goto pci_map_err;
1988         adapter->db = addr;
1989
1990         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
1991                         pci_resource_len(adapter->pdev, 1));
1992         if (addr == NULL)
1993                 goto pci_map_err;
1994         adapter->pcicfg = addr;
1995
1996         return 0;
1997 pci_map_err:
1998         be_unmap_pci_bars(adapter);
1999         return -ENOMEM;
2000 }
2001
2002
2003 static void be_ctrl_cleanup(struct be_adapter *adapter)
2004 {
2005         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2006
2007         be_unmap_pci_bars(adapter);
2008
2009         if (mem->va)
2010                 pci_free_consistent(adapter->pdev, mem->size,
2011                         mem->va, mem->dma);
2012 }
2013
2014 static int be_ctrl_init(struct be_adapter *adapter)
2015 {
2016         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2017         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2018         int status;
2019
2020         status = be_map_pci_bars(adapter);
2021         if (status)
2022                 return status;
2023
2024         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2025         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2026                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2027         if (!mbox_mem_alloc->va) {
2028                 be_unmap_pci_bars(adapter);
2029                 return -1;
2030         }
2031         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2032         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2033         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2034         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2035         spin_lock_init(&adapter->mbox_lock);
2036         spin_lock_init(&adapter->mcc_lock);
2037         spin_lock_init(&adapter->mcc_cq_lock);
2038
2039         return 0;
2040 }
2041
2042 static void be_stats_cleanup(struct be_adapter *adapter)
2043 {
2044         struct be_stats_obj *stats = &adapter->stats;
2045         struct be_dma_mem *cmd = &stats->cmd;
2046
2047         if (cmd->va)
2048                 pci_free_consistent(adapter->pdev, cmd->size,
2049                         cmd->va, cmd->dma);
2050 }
2051
2052 static int be_stats_init(struct be_adapter *adapter)
2053 {
2054         struct be_stats_obj *stats = &adapter->stats;
2055         struct be_dma_mem *cmd = &stats->cmd;
2056
2057         cmd->size = sizeof(struct be_cmd_req_get_stats);
2058         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2059         if (cmd->va == NULL)
2060                 return -1;
2061         return 0;
2062 }
2063
2064 static void __devexit be_remove(struct pci_dev *pdev)
2065 {
2066         struct be_adapter *adapter = pci_get_drvdata(pdev);
2067         if (!adapter)
2068                 return;
2069
2070         unregister_netdev(adapter->netdev);
2071
2072         be_clear(adapter);
2073
2074         be_stats_cleanup(adapter);
2075
2076         be_ctrl_cleanup(adapter);
2077
2078         if (adapter->msix_enabled) {
2079                 pci_disable_msix(adapter->pdev);
2080                 adapter->msix_enabled = false;
2081         }
2082
2083         pci_set_drvdata(pdev, NULL);
2084         pci_release_regions(pdev);
2085         pci_disable_device(pdev);
2086
2087         free_netdev(adapter->netdev);
2088 }
2089
2090 static int be_hw_up(struct be_adapter *adapter)
2091 {
2092         int status;
2093
2094         status = be_cmd_POST(adapter);
2095         if (status)
2096                 return status;
2097
2098         status = be_cmd_reset_function(adapter);
2099         if (status)
2100                 return status;
2101
2102         status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2103         if (status)
2104                 return status;
2105
2106         status = be_cmd_query_fw_cfg(adapter,
2107                                 &adapter->port_num, &adapter->cap);
2108         return status;
2109 }
2110
2111 static int __devinit be_probe(struct pci_dev *pdev,
2112                         const struct pci_device_id *pdev_id)
2113 {
2114         int status = 0;
2115         struct be_adapter *adapter;
2116         struct net_device *netdev;
2117         u8 mac[ETH_ALEN];
2118
2119         status = pci_enable_device(pdev);
2120         if (status)
2121                 goto do_none;
2122
2123         status = pci_request_regions(pdev, DRV_NAME);
2124         if (status)
2125                 goto disable_dev;
2126         pci_set_master(pdev);
2127
2128         netdev = alloc_etherdev(sizeof(struct be_adapter));
2129         if (netdev == NULL) {
2130                 status = -ENOMEM;
2131                 goto rel_reg;
2132         }
2133         adapter = netdev_priv(netdev);
2134         adapter->pdev = pdev;
2135         pci_set_drvdata(pdev, adapter);
2136         adapter->netdev = netdev;
2137
2138         be_msix_enable(adapter);
2139
2140         status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2141         if (!status) {
2142                 netdev->features |= NETIF_F_HIGHDMA;
2143         } else {
2144                 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2145                 if (status) {
2146                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2147                         goto free_netdev;
2148                 }
2149         }
2150
2151         status = be_ctrl_init(adapter);
2152         if (status)
2153                 goto free_netdev;
2154
2155         status = be_stats_init(adapter);
2156         if (status)
2157                 goto ctrl_clean;
2158
2159         status = be_hw_up(adapter);
2160         if (status)
2161                 goto stats_clean;
2162
2163         status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK,
2164                         true /* permanent */, 0);
2165         if (status)
2166                 goto stats_clean;
2167         memcpy(netdev->dev_addr, mac, ETH_ALEN);
2168
2169         INIT_DELAYED_WORK(&adapter->work, be_worker);
2170         be_netdev_init(netdev);
2171         SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
2172
2173         status = be_setup(adapter);
2174         if (status)
2175                 goto stats_clean;
2176         status = register_netdev(netdev);
2177         if (status != 0)
2178                 goto unsetup;
2179
2180         dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2181         return 0;
2182
2183 unsetup:
2184         be_clear(adapter);
2185 stats_clean:
2186         be_stats_cleanup(adapter);
2187 ctrl_clean:
2188         be_ctrl_cleanup(adapter);
2189 free_netdev:
2190         free_netdev(adapter->netdev);
2191 rel_reg:
2192         pci_release_regions(pdev);
2193 disable_dev:
2194         pci_disable_device(pdev);
2195 do_none:
2196         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2197         return status;
2198 }
2199
2200 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2201 {
2202         struct be_adapter *adapter = pci_get_drvdata(pdev);
2203         struct net_device *netdev =  adapter->netdev;
2204
2205         netif_device_detach(netdev);
2206         if (netif_running(netdev)) {
2207                 rtnl_lock();
2208                 be_close(netdev);
2209                 rtnl_unlock();
2210         }
2211         be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2212         be_clear(adapter);
2213
2214         pci_save_state(pdev);
2215         pci_disable_device(pdev);
2216         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2217         return 0;
2218 }
2219
2220 static int be_resume(struct pci_dev *pdev)
2221 {
2222         int status = 0;
2223         struct be_adapter *adapter = pci_get_drvdata(pdev);
2224         struct net_device *netdev =  adapter->netdev;
2225
2226         netif_device_detach(netdev);
2227
2228         status = pci_enable_device(pdev);
2229         if (status)
2230                 return status;
2231
2232         pci_set_power_state(pdev, 0);
2233         pci_restore_state(pdev);
2234
2235         be_setup(adapter);
2236         if (netif_running(netdev)) {
2237                 rtnl_lock();
2238                 be_open(netdev);
2239                 rtnl_unlock();
2240         }
2241         netif_device_attach(netdev);
2242         return 0;
2243 }
2244
2245 static struct pci_driver be_driver = {
2246         .name = DRV_NAME,
2247         .id_table = be_dev_ids,
2248         .probe = be_probe,
2249         .remove = be_remove,
2250         .suspend = be_suspend,
2251         .resume = be_resume
2252 };
2253
2254 static int __init be_init_module(void)
2255 {
2256         if (rx_frag_size != 8192 && rx_frag_size != 4096
2257                 && rx_frag_size != 2048) {
2258                 printk(KERN_WARNING DRV_NAME
2259                         " : Module param rx_frag_size must be 2048/4096/8192."
2260                         " Using 2048\n");
2261                 rx_frag_size = 2048;
2262         }
2263
2264         return pci_register_driver(&be_driver);
2265 }
2266 module_init(be_init_module);
2267
2268 static void __exit be_exit_module(void)
2269 {
2270         pci_unregister_driver(&be_driver);
2271 }
2272 module_exit(be_exit_module);