SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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->netdev->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         return &dev->stats;
 273 }
 274
 275 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
 276 {
 277         u64 rate = bytes;
 278
 279         do_div(rate, ticks / HZ);
 280         rate <<= 3;                     /* bytes/sec -> bits/sec */
 281         do_div(rate, 1000000ul);        /* MB/Sec */
 282
 283         return rate;
 284 }
 285
 286 static void be_tx_rate_update(struct be_adapter *adapter)
 287 {
 288         struct be_drvr_stats *stats = drvr_stats(adapter);
 289         ulong now = jiffies;
 290
 291         /* Wrapped around? */
 292         if (time_before(now, stats->be_tx_jiffies)) {
 293                 stats->be_tx_jiffies = now;
 294                 return;
 295         }
 296
 297         /* Update tx rate once in two seconds */
 298         if ((now - stats->be_tx_jiffies) > 2 * HZ) {
 299                 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
 300                                                   - stats->be_tx_bytes_prev,
 301                                                  now - stats->be_tx_jiffies);
 302                 stats->be_tx_jiffies = now;
 303                 stats->be_tx_bytes_prev = stats->be_tx_bytes;
 304         }
 305 }
 306
 307 static void be_tx_stats_update(struct be_adapter *adapter,
 308                         u32 wrb_cnt, u32 copied, bool stopped)
 309 {
 310         struct be_drvr_stats *stats = drvr_stats(adapter);
 311         stats->be_tx_reqs++;
 312         stats->be_tx_wrbs += wrb_cnt;
 313         stats->be_tx_bytes += copied;
 314         if (stopped)
 315                 stats->be_tx_stops++;
 316 }
 317
 318 /* Determine number of WRB entries needed to xmit data in an skb */
 319 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
 320 {
 321         int cnt = (skb->len > skb->data_len);
 322
 323         cnt += skb_shinfo(skb)->nr_frags;
 324
 325         /* to account for hdr wrb */
 326         cnt++;
 327         if (cnt & 1) {
 328                 /* add a dummy to make it an even num */
 329                 cnt++;
 330                 *dummy = true;
 331         } else
 332                 *dummy = false;
 333         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 334         return cnt;
 335 }
 336
 337 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 338 {
 339         wrb->frag_pa_hi = upper_32_bits(addr);
 340         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 341         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 342 }
 343
 344 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
 345                 bool vlan, u32 wrb_cnt, u32 len)
 346 {
 347         memset(hdr, 0, sizeof(*hdr));
 348
 349         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 350
 351         if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
 352                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 353                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 354                         hdr, skb_shinfo(skb)->gso_size);
 355         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 356                 if (is_tcp_pkt(skb))
 357                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 358                 else if (is_udp_pkt(skb))
 359                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 360         }
 361
 362         if (vlan && vlan_tx_tag_present(skb)) {
 363                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 364                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
 365                         hdr, vlan_tx_tag_get(skb));
 366         }
 367
 368         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 369         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 370         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 371         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 372 }
 373
 374
 375 static int make_tx_wrbs(struct be_adapter *adapter,
 376                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 377 {
 378         u64 busaddr;
 379         u32 i, copied = 0;
 380         struct pci_dev *pdev = adapter->pdev;
 381         struct sk_buff *first_skb = skb;
 382         struct be_queue_info *txq = &adapter->tx_obj.q;
 383         struct be_eth_wrb *wrb;
 384         struct be_eth_hdr_wrb *hdr;
 385
 386         hdr = queue_head_node(txq);
 387         atomic_add(wrb_cnt, &txq->used);
 388         queue_head_inc(txq);
 389
 390         if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) {
 391                 dev_err(&pdev->dev, "TX DMA mapping failed\n");
 392                 return 0;
 393         }
 394
 395         if (skb->len > skb->data_len) {
 396                 int len = skb->len - skb->data_len;
 397                 wrb = queue_head_node(txq);
 398                 busaddr = skb_shinfo(skb)->dma_head;
 399                 wrb_fill(wrb, busaddr, len);
 400                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 401                 queue_head_inc(txq);
 402                 copied += len;
 403         }
 404
 405         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 406                 struct skb_frag_struct *frag =
 407                         &skb_shinfo(skb)->frags[i];
 408
 409                 busaddr = skb_shinfo(skb)->dma_maps[i];
 410                 wrb = queue_head_node(txq);
 411                 wrb_fill(wrb, busaddr, frag->size);
 412                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 413                 queue_head_inc(txq);
 414                 copied += frag->size;
 415         }
 416
 417         if (dummy_wrb) {
 418                 wrb = queue_head_node(txq);
 419                 wrb_fill(wrb, 0, 0);
 420                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 421                 queue_head_inc(txq);
 422         }
 423
 424         wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
 425                 wrb_cnt, copied);
 426         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 427
 428         return copied;
 429 }
 430
 431 static netdev_tx_t be_xmit(struct sk_buff *skb,
 432                         struct net_device *netdev)
 433 {
 434         struct be_adapter *adapter = netdev_priv(netdev);
 435         struct be_tx_obj *tx_obj = &adapter->tx_obj;
 436         struct be_queue_info *txq = &tx_obj->q;
 437         u32 wrb_cnt = 0, copied = 0;
 438         u32 start = txq->head;
 439         bool dummy_wrb, stopped = false;
 440
 441         wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
 442
 443         copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
 444         if (copied) {
 445                 /* record the sent skb in the sent_skb table */
 446                 BUG_ON(tx_obj->sent_skb_list[start]);
 447                 tx_obj->sent_skb_list[start] = skb;
 448
 449                 /* Ensure txq has space for the next skb; Else stop the queue
 450                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 451                  * tx compls of the current transmit which'll wake up the queue
 452                  */
 453                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 454                                                                 txq->len) {
 455                         netif_stop_queue(netdev);
 456                         stopped = true;
 457                 }
 458
 459                 be_txq_notify(adapter, txq->id, wrb_cnt);
 460
 461                 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
 462         } else {
 463                 txq->head = start;
 464                 dev_kfree_skb_any(skb);
 465         }
 466         return NETDEV_TX_OK;
 467 }
 468
 469 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 470 {
 471         struct be_adapter *adapter = netdev_priv(netdev);
 472         if (new_mtu < BE_MIN_MTU ||
 473                         new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
 474                 dev_info(&adapter->pdev->dev,
 475                         "MTU must be between %d and %d bytes\n",
 476                         BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
 477                 return -EINVAL;
 478         }
 479         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 480                         netdev->mtu, new_mtu);
 481         netdev->mtu = new_mtu;
 482         return 0;
 483 }
 484
 485 /*
 486  * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
 487  * program them in BE.  If more than BE_NUM_VLANS_SUPPORTED are configured,
 488  * set the BE in promiscuous VLAN mode.
 489  */
 490 static int be_vid_config(struct be_adapter *adapter)
 491 {
 492         u16 vtag[BE_NUM_VLANS_SUPPORTED];
 493         u16 ntags = 0, i;
 494         int status;
 495
 496         if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED)  {
 497                 /* Construct VLAN Table to give to HW */
 498                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
 499                         if (adapter->vlan_tag[i]) {
 500                                 vtag[ntags] = cpu_to_le16(i);
 501                                 ntags++;
 502                         }
 503                 }
 504                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 505                                         vtag, ntags, 1, 0);
 506         } else {
 507                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 508                                         NULL, 0, 1, 1);
 509         }
 510         return status;
 511 }
 512
 513 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
 514 {
 515         struct be_adapter *adapter = netdev_priv(netdev);
 516         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 517         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 518
 519         be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
 520         be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
 521         adapter->vlan_grp = grp;
 522         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
 523         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
 524 }
 525
 526 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
 527 {
 528         struct be_adapter *adapter = netdev_priv(netdev);
 529
 530         adapter->num_vlans++;
 531         adapter->vlan_tag[vid] = 1;
 532
 533         be_vid_config(adapter);
 534 }
 535
 536 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 537 {
 538         struct be_adapter *adapter = netdev_priv(netdev);
 539
 540         adapter->num_vlans--;
 541         adapter->vlan_tag[vid] = 0;
 542
 543         vlan_group_set_device(adapter->vlan_grp, vid, NULL);
 544         be_vid_config(adapter);
 545 }
 546
 547 static void be_set_multicast_list(struct net_device *netdev)
 548 {
 549         struct be_adapter *adapter = netdev_priv(netdev);
 550
 551         if (netdev->flags & IFF_PROMISC) {
 552                 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
 553                 adapter->promiscuous = true;
 554                 goto done;
 555         }
 556
 557         /* BE was previously in promiscous mode; disable it */
 558         if (adapter->promiscuous) {
 559                 adapter->promiscuous = false;
 560                 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
 561         }
 562
 563         if (netdev->flags & IFF_ALLMULTI) {
 564                 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0);
 565                 goto done;
 566         }
 567
 568         be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
 569                 netdev->mc_count);
 570 done:
 571         return;
 572 }
 573
 574 static void be_rx_rate_update(struct be_adapter *adapter)
 575 {
 576         struct be_drvr_stats *stats = drvr_stats(adapter);
 577         ulong now = jiffies;
 578
 579         /* Wrapped around */
 580         if (time_before(now, stats->be_rx_jiffies)) {
 581                 stats->be_rx_jiffies = now;
 582                 return;
 583         }
 584
 585         /* Update the rate once in two seconds */
 586         if ((now - stats->be_rx_jiffies) < 2 * HZ)
 587                 return;
 588
 589         stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
 590                                           - stats->be_rx_bytes_prev,
 591                                          now - stats->be_rx_jiffies);
 592         stats->be_rx_jiffies = now;
 593         stats->be_rx_bytes_prev = stats->be_rx_bytes;
 594 }
 595
 596 static void be_rx_stats_update(struct be_adapter *adapter,
 597                 u32 pktsize, u16 numfrags)
 598 {
 599         struct be_drvr_stats *stats = drvr_stats(adapter);
 600
 601         stats->be_rx_compl++;
 602         stats->be_rx_frags += numfrags;
 603         stats->be_rx_bytes += pktsize;
 604 }
 605
 606 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
 607 {
 608         u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
 609
 610         l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
 611         ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
 612         ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
 613         if (ip_version) {
 614                 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
 615                 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
 616         }
 617         ipv6_chk = (ip_version && (tcpf || udpf));
 618
 619         return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
 620 }
 621
 622 static struct be_rx_page_info *
 623 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
 624 {
 625         struct be_rx_page_info *rx_page_info;
 626         struct be_queue_info *rxq = &adapter->rx_obj.q;
 627
 628         rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
 629         BUG_ON(!rx_page_info->page);
 630
 631         if (rx_page_info->last_page_user)
 632                 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
 633                         adapter->big_page_size, PCI_DMA_FROMDEVICE);
 634
 635         atomic_dec(&rxq->used);
 636         return rx_page_info;
 637 }
 638
 639 /* Throwaway the data in the Rx completion */
 640 static void be_rx_compl_discard(struct be_adapter *adapter,
 641                         struct be_eth_rx_compl *rxcp)
 642 {
 643         struct be_queue_info *rxq = &adapter->rx_obj.q;
 644         struct be_rx_page_info *page_info;
 645         u16 rxq_idx, i, num_rcvd;
 646
 647         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 648         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 649
 650         for (i = 0; i < num_rcvd; i++) {
 651                 page_info = get_rx_page_info(adapter, rxq_idx);
 652                 put_page(page_info->page);
 653                 memset(page_info, 0, sizeof(*page_info));
 654                 index_inc(&rxq_idx, rxq->len);
 655         }
 656 }
 657
 658 /*
 659  * skb_fill_rx_data forms a complete skb for an ether frame
 660  * indicated by rxcp.
 661  */
 662 static void skb_fill_rx_data(struct be_adapter *adapter,
 663                         struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
 664 {
 665         struct be_queue_info *rxq = &adapter->rx_obj.q;
 666         struct be_rx_page_info *page_info;
 667         u16 rxq_idx, i, num_rcvd, j;
 668         u32 pktsize, hdr_len, curr_frag_len, size;
 669         u8 *start;
 670
 671         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 672         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 673         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 674
 675         page_info = get_rx_page_info(adapter, rxq_idx);
 676
 677         start = page_address(page_info->page) + page_info->page_offset;
 678         prefetch(start);
 679
 680         /* Copy data in the first descriptor of this completion */
 681         curr_frag_len = min(pktsize, rx_frag_size);
 682
 683         /* Copy the header portion into skb_data */
 684         hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
 685         memcpy(skb->data, start, hdr_len);
 686         skb->len = curr_frag_len;
 687         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
 688                 /* Complete packet has now been moved to data */
 689                 put_page(page_info->page);
 690                 skb->data_len = 0;
 691                 skb->tail += curr_frag_len;
 692         } else {
 693                 skb_shinfo(skb)->nr_frags = 1;
 694                 skb_shinfo(skb)->frags[0].page = page_info->page;
 695                 skb_shinfo(skb)->frags[0].page_offset =
 696                                         page_info->page_offset + hdr_len;
 697                 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
 698                 skb->data_len = curr_frag_len - hdr_len;
 699                 skb->tail += hdr_len;
 700         }
 701         memset(page_info, 0, sizeof(*page_info));
 702
 703         if (pktsize <= rx_frag_size) {
 704                 BUG_ON(num_rcvd != 1);
 705                 goto done;
 706         }
 707
 708         /* More frags present for this completion */
 709         size = pktsize;
 710         for (i = 1, j = 0; i < num_rcvd; i++) {
 711                 size -= curr_frag_len;
 712                 index_inc(&rxq_idx, rxq->len);
 713                 page_info = get_rx_page_info(adapter, rxq_idx);
 714
 715                 curr_frag_len = min(size, rx_frag_size);
 716
 717                 /* Coalesce all frags from the same physical page in one slot */
 718                 if (page_info->page_offset == 0) {
 719                         /* Fresh page */
 720                         j++;
 721                         skb_shinfo(skb)->frags[j].page = page_info->page;
 722                         skb_shinfo(skb)->frags[j].page_offset =
 723                                                         page_info->page_offset;
 724                         skb_shinfo(skb)->frags[j].size = 0;
 725                         skb_shinfo(skb)->nr_frags++;
 726                 } else {
 727                         put_page(page_info->page);
 728                 }
 729
 730                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 731                 skb->len += curr_frag_len;
 732                 skb->data_len += curr_frag_len;
 733
 734                 memset(page_info, 0, sizeof(*page_info));
 735         }
 736         BUG_ON(j > MAX_SKB_FRAGS);
 737
 738 done:
 739         be_rx_stats_update(adapter, pktsize, num_rcvd);
 740         return;
 741 }
 742
 743 /* Process the RX completion indicated by rxcp when GRO is disabled */
 744 static void be_rx_compl_process(struct be_adapter *adapter,
 745                         struct be_eth_rx_compl *rxcp)
 746 {
 747         struct sk_buff *skb;
 748         u32 vlanf, vid;
 749         u8 vtm;
 750
 751         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 752         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 753
 754         /* vlanf could be wrongly set in some cards.
 755          * ignore if vtm is not set */
 756         if ((adapter->cap == 0x400) && !vtm)
 757                 vlanf = 0;
 758
 759         skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN);
 760         if (!skb) {
 761                 if (net_ratelimit())
 762                         dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
 763                 be_rx_compl_discard(adapter, rxcp);
 764                 return;
 765         }
 766
 767         skb_reserve(skb, NET_IP_ALIGN);
 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
1592         /* First time posting */
1593         be_post_rx_frags(adapter);
1594
1595         napi_enable(&rx_eq->napi);
1596         napi_enable(&tx_eq->napi);
1597
1598         be_irq_register(adapter);
1599
1600         be_intr_set(adapter, true);
1601
1602         /* The evt queues are created in unarmed state; arm them */
1603         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1604         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1605
1606         /* Rx compl queue may be in unarmed state; rearm it */
1607         be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1608
1609         status = be_cmd_link_status_query(adapter, &link_up);
1610         if (status)
1611                 return status;
1612         be_link_status_update(adapter, link_up);
1613
1614         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1615         return 0;
1616 }
1617
1618 static int be_setup(struct be_adapter *adapter)
1619 {
1620         struct net_device *netdev = adapter->netdev;
1621         u32 if_flags;
1622         int status;
1623
1624         if_flags = BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_PROMISCUOUS |
1625                 BE_IF_FLAGS_MCAST_PROMISCUOUS | BE_IF_FLAGS_UNTAGGED |
1626                 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1627         status = be_cmd_if_create(adapter, if_flags, netdev->dev_addr,
1628                         false/* pmac_invalid */, &adapter->if_handle,
1629                         &adapter->pmac_id);
1630         if (status != 0)
1631                 goto do_none;
1632
1633
1634         status = be_tx_queues_create(adapter);
1635         if (status != 0)
1636                 goto if_destroy;
1637
1638         status = be_rx_queues_create(adapter);
1639         if (status != 0)
1640                 goto tx_qs_destroy;
1641
1642         status = be_mcc_queues_create(adapter);
1643         if (status != 0)
1644                 goto rx_qs_destroy;
1645
1646         status = be_vid_config(adapter);
1647         if (status != 0)
1648                 goto mccqs_destroy;
1649
1650         status = be_cmd_set_flow_control(adapter, true, true);
1651         if (status != 0)
1652                 goto mccqs_destroy;
1653         return 0;
1654
1655 mccqs_destroy:
1656         be_mcc_queues_destroy(adapter);
1657 rx_qs_destroy:
1658         be_rx_queues_destroy(adapter);
1659 tx_qs_destroy:
1660         be_tx_queues_destroy(adapter);
1661 if_destroy:
1662         be_cmd_if_destroy(adapter, adapter->if_handle);
1663 do_none:
1664         return status;
1665 }
1666
1667 static int be_clear(struct be_adapter *adapter)
1668 {
1669         be_mcc_queues_destroy(adapter);
1670         be_rx_queues_destroy(adapter);
1671         be_tx_queues_destroy(adapter);
1672
1673         be_cmd_if_destroy(adapter, adapter->if_handle);
1674
1675         return 0;
1676 }
1677
1678 static int be_close(struct net_device *netdev)
1679 {
1680         struct be_adapter *adapter = netdev_priv(netdev);
1681         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1682         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1683         int vec;
1684
1685         cancel_delayed_work_sync(&adapter->work);
1686
1687         netif_stop_queue(netdev);
1688         netif_carrier_off(netdev);
1689         adapter->link_up = false;
1690
1691         be_intr_set(adapter, false);
1692
1693         if (adapter->msix_enabled) {
1694                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1695                 synchronize_irq(vec);
1696                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1697                 synchronize_irq(vec);
1698         } else {
1699                 synchronize_irq(netdev->irq);
1700         }
1701         be_irq_unregister(adapter);
1702
1703         napi_disable(&rx_eq->napi);
1704         napi_disable(&tx_eq->napi);
1705
1706         /* Wait for all pending tx completions to arrive so that
1707          * all tx skbs are freed.
1708          */
1709         be_tx_compl_clean(adapter);
1710
1711         return 0;
1712 }
1713
1714 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
1715 char flash_cookie[2][16] =      {"*** SE FLAS",
1716                                 "H DIRECTORY *** "};
1717 static int be_flash_image(struct be_adapter *adapter,
1718                         const struct firmware *fw,
1719                         struct be_dma_mem *flash_cmd, u32 flash_type)
1720 {
1721         int status;
1722         u32 flash_op, image_offset = 0, total_bytes, image_size = 0;
1723         int num_bytes;
1724         const u8 *p = fw->data;
1725         struct be_cmd_write_flashrom *req = flash_cmd->va;
1726
1727         switch (flash_type) {
1728         case FLASHROM_TYPE_ISCSI_ACTIVE:
1729                 image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START;
1730                 image_size = FLASH_IMAGE_MAX_SIZE;
1731                 break;
1732         case FLASHROM_TYPE_ISCSI_BACKUP:
1733                 image_offset = FLASH_iSCSI_BACKUP_IMAGE_START;
1734                 image_size = FLASH_IMAGE_MAX_SIZE;
1735                 break;
1736         case FLASHROM_TYPE_FCOE_FW_ACTIVE:
1737                 image_offset = FLASH_FCoE_PRIMARY_IMAGE_START;
1738                 image_size = FLASH_IMAGE_MAX_SIZE;
1739                 break;
1740         case FLASHROM_TYPE_FCOE_FW_BACKUP:
1741                 image_offset = FLASH_FCoE_BACKUP_IMAGE_START;
1742                 image_size = FLASH_IMAGE_MAX_SIZE;
1743                 break;
1744         case FLASHROM_TYPE_BIOS:
1745                 image_offset = FLASH_iSCSI_BIOS_START;
1746                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1747                 break;
1748         case FLASHROM_TYPE_FCOE_BIOS:
1749                 image_offset = FLASH_FCoE_BIOS_START;
1750                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1751                 break;
1752         case FLASHROM_TYPE_PXE_BIOS:
1753                 image_offset = FLASH_PXE_BIOS_START;
1754                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1755                 break;
1756         default:
1757                 return 0;
1758         }
1759
1760         p += sizeof(struct flash_file_hdr) + image_offset;
1761         if (p + image_size > fw->data + fw->size)
1762                 return -1;
1763
1764         total_bytes = image_size;
1765
1766         while (total_bytes) {
1767                 if (total_bytes > 32*1024)
1768                         num_bytes = 32*1024;
1769                 else
1770                         num_bytes = total_bytes;
1771                 total_bytes -= num_bytes;
1772
1773                 if (!total_bytes)
1774                         flash_op = FLASHROM_OPER_FLASH;
1775                 else
1776                         flash_op = FLASHROM_OPER_SAVE;
1777                 memcpy(req->params.data_buf, p, num_bytes);
1778                 p += num_bytes;
1779                 status = be_cmd_write_flashrom(adapter, flash_cmd,
1780                                 flash_type, flash_op, num_bytes);
1781                 if (status) {
1782                         dev_err(&adapter->pdev->dev,
1783                         "cmd to write to flash rom failed. type/op %d/%d\n",
1784                         flash_type, flash_op);
1785                         return -1;
1786                 }
1787                 yield();
1788         }
1789
1790         return 0;
1791 }
1792
1793 int be_load_fw(struct be_adapter *adapter, u8 *func)
1794 {
1795         char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1796         const struct firmware *fw;
1797         struct flash_file_hdr *fhdr;
1798         struct flash_section_info *fsec = NULL;
1799         struct be_dma_mem flash_cmd;
1800         int status;
1801         const u8 *p;
1802         bool entry_found = false;
1803         int flash_type;
1804         char fw_ver[FW_VER_LEN];
1805         char fw_cfg;
1806
1807         status = be_cmd_get_fw_ver(adapter, fw_ver);
1808         if (status)
1809                 return status;
1810
1811         fw_cfg = *(fw_ver + 2);
1812         if (fw_cfg == '0')
1813                 fw_cfg = '1';
1814         strcpy(fw_file, func);
1815
1816         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1817         if (status)
1818                 goto fw_exit;
1819
1820         p = fw->data;
1821         fhdr = (struct flash_file_hdr *) p;
1822         if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) {
1823                 dev_err(&adapter->pdev->dev,
1824                         "Firmware(%s) load error (signature did not match)\n",
1825                                 fw_file);
1826                 status = -1;
1827                 goto fw_exit;
1828         }
1829
1830         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1831
1832         p += sizeof(struct flash_file_hdr);
1833         while (p < (fw->data + fw->size)) {
1834                 fsec = (struct flash_section_info *)p;
1835                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) {
1836                         entry_found = true;
1837                         break;
1838                 }
1839                 p += 32;
1840         }
1841
1842         if (!entry_found) {
1843                 status = -1;
1844                 dev_err(&adapter->pdev->dev,
1845                         "Flash cookie not found in firmware image\n");
1846                 goto fw_exit;
1847         }
1848
1849         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1850         flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1851                                         &flash_cmd.dma);
1852         if (!flash_cmd.va) {
1853                 status = -ENOMEM;
1854                 dev_err(&adapter->pdev->dev,
1855                         "Memory allocation failure while flashing\n");
1856                 goto fw_exit;
1857         }
1858
1859         for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE;
1860                 flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) {
1861                 status = be_flash_image(adapter, fw, &flash_cmd,
1862                                 flash_type);
1863                 if (status)
1864                         break;
1865         }
1866
1867         pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1868                                 flash_cmd.dma);
1869         if (status) {
1870                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
1871                 goto fw_exit;
1872         }
1873
1874         dev_info(&adapter->pdev->dev, "Firmware flashed succesfully\n");
1875
1876 fw_exit:
1877         release_firmware(fw);
1878         return status;
1879 }
1880
1881 static struct net_device_ops be_netdev_ops = {
1882         .ndo_open               = be_open,
1883         .ndo_stop               = be_close,
1884         .ndo_start_xmit         = be_xmit,
1885         .ndo_get_stats          = be_get_stats,
1886         .ndo_set_rx_mode        = be_set_multicast_list,
1887         .ndo_set_mac_address    = be_mac_addr_set,
1888         .ndo_change_mtu         = be_change_mtu,
1889         .ndo_validate_addr      = eth_validate_addr,
1890         .ndo_vlan_rx_register   = be_vlan_register,
1891         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
1892         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
1893 };
1894
1895 static void be_netdev_init(struct net_device *netdev)
1896 {
1897         struct be_adapter *adapter = netdev_priv(netdev);
1898
1899         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1900                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
1901                 NETIF_F_GRO;
1902
1903         netdev->flags |= IFF_MULTICAST;
1904
1905         adapter->rx_csum = true;
1906
1907         netif_set_gso_max_size(netdev, 65535);
1908
1909         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1910
1911         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1912
1913         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1914                 BE_NAPI_WEIGHT);
1915         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
1916                 BE_NAPI_WEIGHT);
1917
1918         netif_carrier_off(netdev);
1919         netif_stop_queue(netdev);
1920 }
1921
1922 static void be_unmap_pci_bars(struct be_adapter *adapter)
1923 {
1924         if (adapter->csr)
1925                 iounmap(adapter->csr);
1926         if (adapter->db)
1927                 iounmap(adapter->db);
1928         if (adapter->pcicfg)
1929                 iounmap(adapter->pcicfg);
1930 }
1931
1932 static int be_map_pci_bars(struct be_adapter *adapter)
1933 {
1934         u8 __iomem *addr;
1935
1936         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
1937                         pci_resource_len(adapter->pdev, 2));
1938         if (addr == NULL)
1939                 return -ENOMEM;
1940         adapter->csr = addr;
1941
1942         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
1943                         128 * 1024);
1944         if (addr == NULL)
1945                 goto pci_map_err;
1946         adapter->db = addr;
1947
1948         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
1949                         pci_resource_len(adapter->pdev, 1));
1950         if (addr == NULL)
1951                 goto pci_map_err;
1952         adapter->pcicfg = addr;
1953
1954         return 0;
1955 pci_map_err:
1956         be_unmap_pci_bars(adapter);
1957         return -ENOMEM;
1958 }
1959
1960
1961 static void be_ctrl_cleanup(struct be_adapter *adapter)
1962 {
1963         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
1964
1965         be_unmap_pci_bars(adapter);
1966
1967         if (mem->va)
1968                 pci_free_consistent(adapter->pdev, mem->size,
1969                         mem->va, mem->dma);
1970 }
1971
1972 static int be_ctrl_init(struct be_adapter *adapter)
1973 {
1974         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
1975         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
1976         int status;
1977
1978         status = be_map_pci_bars(adapter);
1979         if (status)
1980                 return status;
1981
1982         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
1983         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
1984                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
1985         if (!mbox_mem_alloc->va) {
1986                 be_unmap_pci_bars(adapter);
1987                 return -1;
1988         }
1989         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
1990         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
1991         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
1992         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
1993         spin_lock_init(&adapter->mbox_lock);
1994         spin_lock_init(&adapter->mcc_lock);
1995         spin_lock_init(&adapter->mcc_cq_lock);
1996
1997         return 0;
1998 }
1999
2000 static void be_stats_cleanup(struct be_adapter *adapter)
2001 {
2002         struct be_stats_obj *stats = &adapter->stats;
2003         struct be_dma_mem *cmd = &stats->cmd;
2004
2005         if (cmd->va)
2006                 pci_free_consistent(adapter->pdev, cmd->size,
2007                         cmd->va, cmd->dma);
2008 }
2009
2010 static int be_stats_init(struct be_adapter *adapter)
2011 {
2012         struct be_stats_obj *stats = &adapter->stats;
2013         struct be_dma_mem *cmd = &stats->cmd;
2014
2015         cmd->size = sizeof(struct be_cmd_req_get_stats);
2016         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2017         if (cmd->va == NULL)
2018                 return -1;
2019         return 0;
2020 }
2021
2022 static void __devexit be_remove(struct pci_dev *pdev)
2023 {
2024         struct be_adapter *adapter = pci_get_drvdata(pdev);
2025         if (!adapter)
2026                 return;
2027
2028         unregister_netdev(adapter->netdev);
2029
2030         be_clear(adapter);
2031
2032         be_stats_cleanup(adapter);
2033
2034         be_ctrl_cleanup(adapter);
2035
2036         if (adapter->msix_enabled) {
2037                 pci_disable_msix(adapter->pdev);
2038                 adapter->msix_enabled = false;
2039         }
2040
2041         pci_set_drvdata(pdev, NULL);
2042         pci_release_regions(pdev);
2043         pci_disable_device(pdev);
2044
2045         free_netdev(adapter->netdev);
2046 }
2047
2048 static int be_hw_up(struct be_adapter *adapter)
2049 {
2050         int status;
2051
2052         status = be_cmd_POST(adapter);
2053         if (status)
2054                 return status;
2055
2056         status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2057         if (status)
2058                 return status;
2059
2060         status = be_cmd_query_fw_cfg(adapter,
2061                                 &adapter->port_num, &adapter->cap);
2062         return status;
2063 }
2064
2065 static int __devinit be_probe(struct pci_dev *pdev,
2066                         const struct pci_device_id *pdev_id)
2067 {
2068         int status = 0;
2069         struct be_adapter *adapter;
2070         struct net_device *netdev;
2071         u8 mac[ETH_ALEN];
2072
2073         status = pci_enable_device(pdev);
2074         if (status)
2075                 goto do_none;
2076
2077         status = pci_request_regions(pdev, DRV_NAME);
2078         if (status)
2079                 goto disable_dev;
2080         pci_set_master(pdev);
2081
2082         netdev = alloc_etherdev(sizeof(struct be_adapter));
2083         if (netdev == NULL) {
2084                 status = -ENOMEM;
2085                 goto rel_reg;
2086         }
2087         adapter = netdev_priv(netdev);
2088         adapter->pdev = pdev;
2089         pci_set_drvdata(pdev, adapter);
2090         adapter->netdev = netdev;
2091
2092         be_msix_enable(adapter);
2093
2094         status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2095         if (!status) {
2096                 netdev->features |= NETIF_F_HIGHDMA;
2097         } else {
2098                 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2099                 if (status) {
2100                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2101                         goto free_netdev;
2102                 }
2103         }
2104
2105         status = be_ctrl_init(adapter);
2106         if (status)
2107                 goto free_netdev;
2108
2109         status = be_cmd_reset_function(adapter);
2110         if (status)
2111                 goto ctrl_clean;
2112
2113         status = be_stats_init(adapter);
2114         if (status)
2115                 goto ctrl_clean;
2116
2117         status = be_hw_up(adapter);
2118         if (status)
2119                 goto stats_clean;
2120
2121         status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK,
2122                         true /* permanent */, 0);
2123         if (status)
2124                 goto stats_clean;
2125         memcpy(netdev->dev_addr, mac, ETH_ALEN);
2126
2127         INIT_DELAYED_WORK(&adapter->work, be_worker);
2128         be_netdev_init(netdev);
2129         SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
2130
2131         status = be_setup(adapter);
2132         if (status)
2133                 goto stats_clean;
2134         status = register_netdev(netdev);
2135         if (status != 0)
2136                 goto unsetup;
2137
2138         dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2139         return 0;
2140
2141 unsetup:
2142         be_clear(adapter);
2143 stats_clean:
2144         be_stats_cleanup(adapter);
2145 ctrl_clean:
2146         be_ctrl_cleanup(adapter);
2147 free_netdev:
2148         free_netdev(adapter->netdev);
2149 rel_reg:
2150         pci_release_regions(pdev);
2151 disable_dev:
2152         pci_disable_device(pdev);
2153 do_none:
2154         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2155         return status;
2156 }
2157
2158 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2159 {
2160         struct be_adapter *adapter = pci_get_drvdata(pdev);
2161         struct net_device *netdev =  adapter->netdev;
2162
2163         netif_device_detach(netdev);
2164         if (netif_running(netdev)) {
2165                 rtnl_lock();
2166                 be_close(netdev);
2167                 rtnl_unlock();
2168         }
2169         be_clear(adapter);
2170
2171         pci_save_state(pdev);
2172         pci_disable_device(pdev);
2173         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2174         return 0;
2175 }
2176
2177 static int be_resume(struct pci_dev *pdev)
2178 {
2179         int status = 0;
2180         struct be_adapter *adapter = pci_get_drvdata(pdev);
2181         struct net_device *netdev =  adapter->netdev;
2182
2183         netif_device_detach(netdev);
2184
2185         status = pci_enable_device(pdev);
2186         if (status)
2187                 return status;
2188
2189         pci_set_power_state(pdev, 0);
2190         pci_restore_state(pdev);
2191
2192         be_setup(adapter);
2193         if (netif_running(netdev)) {
2194                 rtnl_lock();
2195                 be_open(netdev);
2196                 rtnl_unlock();
2197         }
2198         netif_device_attach(netdev);
2199         return 0;
2200 }
2201
2202 static struct pci_driver be_driver = {
2203         .name = DRV_NAME,
2204         .id_table = be_dev_ids,
2205         .probe = be_probe,
2206         .remove = be_remove,
2207         .suspend = be_suspend,
2208         .resume = be_resume
2209 };
2210
2211 static int __init be_init_module(void)
2212 {
2213         if (rx_frag_size != 8192 && rx_frag_size != 4096
2214                 && rx_frag_size != 2048) {
2215                 printk(KERN_WARNING DRV_NAME
2216                         " : Module param rx_frag_size must be 2048/4096/8192."
2217                         " Using 2048\n");
2218                 rx_frag_size = 2048;
2219         }
2220
2221         return pci_register_driver(&be_driver);
2222 }
2223 module_init(be_init_module);
2224
2225 static void __exit be_exit_module(void)
2226 {
2227         pci_unregister_driver(&be_driver);
2228 }
2229 module_exit(be_exit_module);