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->stats.net_stats;
 145         struct be_erx_stats *erx_stats = &hw_stats->erx;
 146
 147         dev_stats->rx_packets = port_stats->rx_total_frames;
 148         dev_stats->tx_packets = port_stats->tx_unicastframes +
 149                 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
 150         dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
 151                                 (u64) port_stats->rx_bytes_lsd;
 152         dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
 153                                 (u64) port_stats->tx_bytes_lsd;
 154
 155         /* bad pkts received */
 156         dev_stats->rx_errors = port_stats->rx_crc_errors +
 157                 port_stats->rx_alignment_symbol_errors +
 158                 port_stats->rx_in_range_errors +
 159                 port_stats->rx_out_range_errors +
 160                 port_stats->rx_frame_too_long +
 161                 port_stats->rx_dropped_too_small +
 162                 port_stats->rx_dropped_too_short +
 163                 port_stats->rx_dropped_header_too_small +
 164                 port_stats->rx_dropped_tcp_length +
 165                 port_stats->rx_dropped_runt +
 166                 port_stats->rx_tcp_checksum_errs +
 167                 port_stats->rx_ip_checksum_errs +
 168                 port_stats->rx_udp_checksum_errs;
 169
 170         /*  no space in linux buffers: best possible approximation */
 171         dev_stats->rx_dropped = erx_stats->rx_drops_no_fragments[0];
 172
 173         /* detailed rx errors */
 174         dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
 175                 port_stats->rx_out_range_errors +
 176                 port_stats->rx_frame_too_long;
 177
 178         /* receive ring buffer overflow */
 179         dev_stats->rx_over_errors = 0;
 180
 181         dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
 182
 183         /* frame alignment errors */
 184         dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
 185
 186         /* receiver fifo overrun */
 187         /* drops_no_pbuf is no per i/f, it's per BE card */
 188         dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
 189                                         port_stats->rx_input_fifo_overflow +
 190                                         rxf_stats->rx_drops_no_pbuf;
 191         /* receiver missed packetd */
 192         dev_stats->rx_missed_errors = 0;
 193
 194         /*  packet transmit problems */
 195         dev_stats->tx_errors = 0;
 196
 197         /* no space available in linux */
 198         dev_stats->tx_dropped = 0;
 199
 200         dev_stats->multicast = port_stats->tx_multicastframes;
 201         dev_stats->collisions = 0;
 202
 203         /* detailed tx_errors */
 204         dev_stats->tx_aborted_errors = 0;
 205         dev_stats->tx_carrier_errors = 0;
 206         dev_stats->tx_fifo_errors = 0;
 207         dev_stats->tx_heartbeat_errors = 0;
 208         dev_stats->tx_window_errors = 0;
 209 }
 210
 211 void be_link_status_update(struct be_adapter *adapter, bool link_up)
 212 {
 213         struct net_device *netdev = adapter->netdev;
 214
 215         /* If link came up or went down */
 216         if (adapter->link_up != link_up) {
 217                 if (link_up) {
 218                         netif_start_queue(netdev);
 219                         netif_carrier_on(netdev);
 220                         printk(KERN_INFO "%s: Link up\n", netdev->name);
 221                 } else {
 222                         netif_stop_queue(netdev);
 223                         netif_carrier_off(netdev);
 224                         printk(KERN_INFO "%s: Link down\n", netdev->name);
 225                 }
 226                 adapter->link_up = link_up;
 227         }
 228 }
 229
 230 /* Update the EQ delay n BE based on the RX frags consumed / sec */
 231 static void be_rx_eqd_update(struct be_adapter *adapter)
 232 {
 233         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 234         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 235         ulong now = jiffies;
 236         u32 eqd;
 237
 238         if (!rx_eq->enable_aic)
 239                 return;
 240
 241         /* Wrapped around */
 242         if (time_before(now, stats->rx_fps_jiffies)) {
 243                 stats->rx_fps_jiffies = now;
 244                 return;
 245         }
 246
 247         /* Update once a second */
 248         if ((now - stats->rx_fps_jiffies) < HZ)
 249                 return;
 250
 251         stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
 252                         ((now - stats->rx_fps_jiffies) / HZ);
 253
 254         stats->rx_fps_jiffies = now;
 255         stats->be_prev_rx_frags = stats->be_rx_frags;
 256         eqd = stats->be_rx_fps / 110000;
 257         eqd = eqd << 3;
 258         if (eqd > rx_eq->max_eqd)
 259                 eqd = rx_eq->max_eqd;
 260         if (eqd < rx_eq->min_eqd)
 261                 eqd = rx_eq->min_eqd;
 262         if (eqd < 10)
 263                 eqd = 0;
 264         if (eqd != rx_eq->cur_eqd)
 265                 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
 266
 267         rx_eq->cur_eqd = eqd;
 268 }
 269
 270 static struct net_device_stats *be_get_stats(struct net_device *dev)
 271 {
 272         struct be_adapter *adapter = netdev_priv(dev);
 273
 274         return &adapter->stats.net_stats;
 275 }
 276
 277 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
 278 {
 279         u64 rate = bytes;
 280
 281         do_div(rate, ticks / HZ);
 282         rate <<= 3;                     /* bytes/sec -> bits/sec */
 283         do_div(rate, 1000000ul);        /* MB/Sec */
 284
 285         return rate;
 286 }
 287
 288 static void be_tx_rate_update(struct be_adapter *adapter)
 289 {
 290         struct be_drvr_stats *stats = drvr_stats(adapter);
 291         ulong now = jiffies;
 292
 293         /* Wrapped around? */
 294         if (time_before(now, stats->be_tx_jiffies)) {
 295                 stats->be_tx_jiffies = now;
 296                 return;
 297         }
 298
 299         /* Update tx rate once in two seconds */
 300         if ((now - stats->be_tx_jiffies) > 2 * HZ) {
 301                 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
 302                                                   - stats->be_tx_bytes_prev,
 303                                                  now - stats->be_tx_jiffies);
 304                 stats->be_tx_jiffies = now;
 305                 stats->be_tx_bytes_prev = stats->be_tx_bytes;
 306         }
 307 }
 308
 309 static void be_tx_stats_update(struct be_adapter *adapter,
 310                         u32 wrb_cnt, u32 copied, bool stopped)
 311 {
 312         struct be_drvr_stats *stats = drvr_stats(adapter);
 313         stats->be_tx_reqs++;
 314         stats->be_tx_wrbs += wrb_cnt;
 315         stats->be_tx_bytes += copied;
 316         if (stopped)
 317                 stats->be_tx_stops++;
 318 }
 319
 320 /* Determine number of WRB entries needed to xmit data in an skb */
 321 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
 322 {
 323         int cnt = (skb->len > skb->data_len);
 324
 325         cnt += skb_shinfo(skb)->nr_frags;
 326
 327         /* to account for hdr wrb */
 328         cnt++;
 329         if (cnt & 1) {
 330                 /* add a dummy to make it an even num */
 331                 cnt++;
 332                 *dummy = true;
 333         } else
 334                 *dummy = false;
 335         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 336         return cnt;
 337 }
 338
 339 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 340 {
 341         wrb->frag_pa_hi = upper_32_bits(addr);
 342         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 343         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 344 }
 345
 346 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
 347                 bool vlan, u32 wrb_cnt, u32 len)
 348 {
 349         memset(hdr, 0, sizeof(*hdr));
 350
 351         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 352
 353         if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
 354                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 355                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 356                         hdr, skb_shinfo(skb)->gso_size);
 357         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 358                 if (is_tcp_pkt(skb))
 359                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 360                 else if (is_udp_pkt(skb))
 361                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 362         }
 363
 364         if (vlan && vlan_tx_tag_present(skb)) {
 365                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 366                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
 367                         hdr, vlan_tx_tag_get(skb));
 368         }
 369
 370         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 371         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 372         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 373         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 374 }
 375
 376
 377 static int make_tx_wrbs(struct be_adapter *adapter,
 378                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 379 {
 380         u64 busaddr;
 381         u32 i, copied = 0;
 382         struct pci_dev *pdev = adapter->pdev;
 383         struct sk_buff *first_skb = skb;
 384         struct be_queue_info *txq = &adapter->tx_obj.q;
 385         struct be_eth_wrb *wrb;
 386         struct be_eth_hdr_wrb *hdr;
 387
 388         hdr = queue_head_node(txq);
 389         atomic_add(wrb_cnt, &txq->used);
 390         queue_head_inc(txq);
 391
 392         if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) {
 393                 dev_err(&pdev->dev, "TX DMA mapping failed\n");
 394                 return 0;
 395         }
 396
 397         if (skb->len > skb->data_len) {
 398                 int len = skb->len - skb->data_len;
 399                 wrb = queue_head_node(txq);
 400                 busaddr = skb_shinfo(skb)->dma_head;
 401                 wrb_fill(wrb, busaddr, len);
 402                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 403                 queue_head_inc(txq);
 404                 copied += len;
 405         }
 406
 407         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 408                 struct skb_frag_struct *frag =
 409                         &skb_shinfo(skb)->frags[i];
 410
 411                 busaddr = skb_shinfo(skb)->dma_maps[i];
 412                 wrb = queue_head_node(txq);
 413                 wrb_fill(wrb, busaddr, frag->size);
 414                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 415                 queue_head_inc(txq);
 416                 copied += frag->size;
 417         }
 418
 419         if (dummy_wrb) {
 420                 wrb = queue_head_node(txq);
 421                 wrb_fill(wrb, 0, 0);
 422                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 423                 queue_head_inc(txq);
 424         }
 425
 426         wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
 427                 wrb_cnt, copied);
 428         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 429
 430         return copied;
 431 }
 432
 433 static netdev_tx_t be_xmit(struct sk_buff *skb,
 434                         struct net_device *netdev)
 435 {
 436         struct be_adapter *adapter = netdev_priv(netdev);
 437         struct be_tx_obj *tx_obj = &adapter->tx_obj;
 438         struct be_queue_info *txq = &tx_obj->q;
 439         u32 wrb_cnt = 0, copied = 0;
 440         u32 start = txq->head;
 441         bool dummy_wrb, stopped = false;
 442
 443         wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
 444
 445         copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
 446         if (copied) {
 447                 /* record the sent skb in the sent_skb table */
 448                 BUG_ON(tx_obj->sent_skb_list[start]);
 449                 tx_obj->sent_skb_list[start] = skb;
 450
 451                 /* Ensure txq has space for the next skb; Else stop the queue
 452                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 453                  * tx compls of the current transmit which'll wake up the queue
 454                  */
 455                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 456                                                                 txq->len) {
 457                         netif_stop_queue(netdev);
 458                         stopped = true;
 459                 }
 460
 461                 be_txq_notify(adapter, txq->id, wrb_cnt);
 462
 463                 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
 464         } else {
 465                 txq->head = start;
 466                 dev_kfree_skb_any(skb);
 467         }
 468         return NETDEV_TX_OK;
 469 }
 470
 471 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 472 {
 473         struct be_adapter *adapter = netdev_priv(netdev);
 474         if (new_mtu < BE_MIN_MTU ||
 475                         new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
 476                 dev_info(&adapter->pdev->dev,
 477                         "MTU must be between %d and %d bytes\n",
 478                         BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
 479                 return -EINVAL;
 480         }
 481         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 482                         netdev->mtu, new_mtu);
 483         netdev->mtu = new_mtu;
 484         return 0;
 485 }
 486
 487 /*
 488  * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
 489  * program them in BE.  If more than BE_NUM_VLANS_SUPPORTED are configured,
 490  * set the BE in promiscuous VLAN mode.
 491  */
 492 static int be_vid_config(struct be_adapter *adapter)
 493 {
 494         u16 vtag[BE_NUM_VLANS_SUPPORTED];
 495         u16 ntags = 0, i;
 496         int status;
 497
 498         if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED)  {
 499                 /* Construct VLAN Table to give to HW */
 500                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
 501                         if (adapter->vlan_tag[i]) {
 502                                 vtag[ntags] = cpu_to_le16(i);
 503                                 ntags++;
 504                         }
 505                 }
 506                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 507                                         vtag, ntags, 1, 0);
 508         } else {
 509                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 510                                         NULL, 0, 1, 1);
 511         }
 512         return status;
 513 }
 514
 515 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
 516 {
 517         struct be_adapter *adapter = netdev_priv(netdev);
 518         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 519         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 520
 521         be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
 522         be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
 523         adapter->vlan_grp = grp;
 524         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
 525         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
 526 }
 527
 528 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
 529 {
 530         struct be_adapter *adapter = netdev_priv(netdev);
 531
 532         adapter->num_vlans++;
 533         adapter->vlan_tag[vid] = 1;
 534
 535         be_vid_config(adapter);
 536 }
 537
 538 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 539 {
 540         struct be_adapter *adapter = netdev_priv(netdev);
 541
 542         adapter->num_vlans--;
 543         adapter->vlan_tag[vid] = 0;
 544
 545         vlan_group_set_device(adapter->vlan_grp, vid, NULL);
 546         be_vid_config(adapter);
 547 }
 548
 549 static void be_set_multicast_list(struct net_device *netdev)
 550 {
 551         struct be_adapter *adapter = netdev_priv(netdev);
 552
 553         if (netdev->flags & IFF_PROMISC) {
 554                 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
 555                 adapter->promiscuous = true;
 556                 goto done;
 557         }
 558
 559         /* BE was previously in promiscous mode; disable it */
 560         if (adapter->promiscuous) {
 561                 adapter->promiscuous = false;
 562                 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
 563         }
 564
 565         if (netdev->flags & IFF_ALLMULTI) {
 566                 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0);
 567                 goto done;
 568         }
 569
 570         be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
 571                 netdev->mc_count);
 572 done:
 573         return;
 574 }
 575
 576 static void be_rx_rate_update(struct be_adapter *adapter)
 577 {
 578         struct be_drvr_stats *stats = drvr_stats(adapter);
 579         ulong now = jiffies;
 580
 581         /* Wrapped around */
 582         if (time_before(now, stats->be_rx_jiffies)) {
 583                 stats->be_rx_jiffies = now;
 584                 return;
 585         }
 586
 587         /* Update the rate once in two seconds */
 588         if ((now - stats->be_rx_jiffies) < 2 * HZ)
 589                 return;
 590
 591         stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
 592                                           - stats->be_rx_bytes_prev,
 593                                          now - stats->be_rx_jiffies);
 594         stats->be_rx_jiffies = now;
 595         stats->be_rx_bytes_prev = stats->be_rx_bytes;
 596 }
 597
 598 static void be_rx_stats_update(struct be_adapter *adapter,
 599                 u32 pktsize, u16 numfrags)
 600 {
 601         struct be_drvr_stats *stats = drvr_stats(adapter);
 602
 603         stats->be_rx_compl++;
 604         stats->be_rx_frags += numfrags;
 605         stats->be_rx_bytes += pktsize;
 606 }
 607
 608 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
 609 {
 610         u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
 611
 612         l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
 613         ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
 614         ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
 615         if (ip_version) {
 616                 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
 617                 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
 618         }
 619         ipv6_chk = (ip_version && (tcpf || udpf));
 620
 621         return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
 622 }
 623
 624 static struct be_rx_page_info *
 625 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
 626 {
 627         struct be_rx_page_info *rx_page_info;
 628         struct be_queue_info *rxq = &adapter->rx_obj.q;
 629
 630         rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
 631         BUG_ON(!rx_page_info->page);
 632
 633         if (rx_page_info->last_page_user)
 634                 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
 635                         adapter->big_page_size, PCI_DMA_FROMDEVICE);
 636
 637         atomic_dec(&rxq->used);
 638         return rx_page_info;
 639 }
 640
 641 /* Throwaway the data in the Rx completion */
 642 static void be_rx_compl_discard(struct be_adapter *adapter,
 643                         struct be_eth_rx_compl *rxcp)
 644 {
 645         struct be_queue_info *rxq = &adapter->rx_obj.q;
 646         struct be_rx_page_info *page_info;
 647         u16 rxq_idx, i, num_rcvd;
 648
 649         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 650         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 651
 652         for (i = 0; i < num_rcvd; i++) {
 653                 page_info = get_rx_page_info(adapter, rxq_idx);
 654                 put_page(page_info->page);
 655                 memset(page_info, 0, sizeof(*page_info));
 656                 index_inc(&rxq_idx, rxq->len);
 657         }
 658 }
 659
 660 /*
 661  * skb_fill_rx_data forms a complete skb for an ether frame
 662  * indicated by rxcp.
 663  */
 664 static void skb_fill_rx_data(struct be_adapter *adapter,
 665                         struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
 666 {
 667         struct be_queue_info *rxq = &adapter->rx_obj.q;
 668         struct be_rx_page_info *page_info;
 669         u16 rxq_idx, i, num_rcvd, j;
 670         u32 pktsize, hdr_len, curr_frag_len, size;
 671         u8 *start;
 672
 673         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 674         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 675         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 676
 677         page_info = get_rx_page_info(adapter, rxq_idx);
 678
 679         start = page_address(page_info->page) + page_info->page_offset;
 680         prefetch(start);
 681
 682         /* Copy data in the first descriptor of this completion */
 683         curr_frag_len = min(pktsize, rx_frag_size);
 684
 685         /* Copy the header portion into skb_data */
 686         hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
 687         memcpy(skb->data, start, hdr_len);
 688         skb->len = curr_frag_len;
 689         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
 690                 /* Complete packet has now been moved to data */
 691                 put_page(page_info->page);
 692                 skb->data_len = 0;
 693                 skb->tail += curr_frag_len;
 694         } else {
 695                 skb_shinfo(skb)->nr_frags = 1;
 696                 skb_shinfo(skb)->frags[0].page = page_info->page;
 697                 skb_shinfo(skb)->frags[0].page_offset =
 698                                         page_info->page_offset + hdr_len;
 699                 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
 700                 skb->data_len = curr_frag_len - hdr_len;
 701                 skb->tail += hdr_len;
 702         }
 703         memset(page_info, 0, sizeof(*page_info));
 704
 705         if (pktsize <= rx_frag_size) {
 706                 BUG_ON(num_rcvd != 1);
 707                 goto done;
 708         }
 709
 710         /* More frags present for this completion */
 711         size = pktsize;
 712         for (i = 1, j = 0; i < num_rcvd; i++) {
 713                 size -= curr_frag_len;
 714                 index_inc(&rxq_idx, rxq->len);
 715                 page_info = get_rx_page_info(adapter, rxq_idx);
 716
 717                 curr_frag_len = min(size, rx_frag_size);
 718
 719                 /* Coalesce all frags from the same physical page in one slot */
 720                 if (page_info->page_offset == 0) {
 721                         /* Fresh page */
 722                         j++;
 723                         skb_shinfo(skb)->frags[j].page = page_info->page;
 724                         skb_shinfo(skb)->frags[j].page_offset =
 725                                                         page_info->page_offset;
 726                         skb_shinfo(skb)->frags[j].size = 0;
 727                         skb_shinfo(skb)->nr_frags++;
 728                 } else {
 729                         put_page(page_info->page);
 730                 }
 731
 732                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 733                 skb->len += curr_frag_len;
 734                 skb->data_len += curr_frag_len;
 735
 736                 memset(page_info, 0, sizeof(*page_info));
 737         }
 738         BUG_ON(j > MAX_SKB_FRAGS);
 739
 740 done:
 741         be_rx_stats_update(adapter, pktsize, num_rcvd);
 742         return;
 743 }
 744
 745 /* Process the RX completion indicated by rxcp when GRO is disabled */
 746 static void be_rx_compl_process(struct be_adapter *adapter,
 747                         struct be_eth_rx_compl *rxcp)
 748 {
 749         struct sk_buff *skb;
 750         u32 vlanf, vid;
 751         u8 vtm;
 752
 753         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 754         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 755
 756         /* vlanf could be wrongly set in some cards.
 757          * ignore if vtm is not set */
 758         if ((adapter->cap == 0x400) && !vtm)
 759                 vlanf = 0;
 760
 761         skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN);
 762         if (!skb) {
 763                 if (net_ratelimit())
 764                         dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
 765                 be_rx_compl_discard(adapter, rxcp);
 766                 return;
 767         }
 768
 769         skb_reserve(skb, NET_IP_ALIGN);
 770
 771         skb_fill_rx_data(adapter, skb, rxcp);
 772
 773         if (do_pkt_csum(rxcp, adapter->rx_csum))
 774                 skb->ip_summed = CHECKSUM_NONE;
 775         else
 776                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 777
 778         skb->truesize = skb->len + sizeof(struct sk_buff);
 779         skb->protocol = eth_type_trans(skb, adapter->netdev);
 780         skb->dev = adapter->netdev;
 781
 782         if (vlanf) {
 783                 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
 784                         kfree_skb(skb);
 785                         return;
 786                 }
 787                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 788                 vid = be16_to_cpu(vid);
 789                 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
 790         } else {
 791                 netif_receive_skb(skb);
 792         }
 793
 794         return;
 795 }
 796
 797 /* Process the RX completion indicated by rxcp when GRO is enabled */
 798 static void be_rx_compl_process_gro(struct be_adapter *adapter,
 799                         struct be_eth_rx_compl *rxcp)
 800 {
 801         struct be_rx_page_info *page_info;
 802         struct sk_buff *skb = NULL;
 803         struct be_queue_info *rxq = &adapter->rx_obj.q;
 804         struct be_eq_obj *eq_obj =  &adapter->rx_eq;
 805         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
 806         u16 i, rxq_idx = 0, vid, j;
 807         u8 vtm;
 808
 809         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 810         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 811         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 812         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 813         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 814
 815         /* vlanf could be wrongly set in some cards.
 816          * ignore if vtm is not set */
 817         if ((adapter->cap == 0x400) && !vtm)
 818                 vlanf = 0;
 819
 820         skb = napi_get_frags(&eq_obj->napi);
 821         if (!skb) {
 822                 be_rx_compl_discard(adapter, rxcp);
 823                 return;
 824         }
 825
 826         remaining = pkt_size;
 827         for (i = 0, j = -1; i < num_rcvd; i++) {
 828                 page_info = get_rx_page_info(adapter, rxq_idx);
 829
 830                 curr_frag_len = min(remaining, rx_frag_size);
 831
 832                 /* Coalesce all frags from the same physical page in one slot */
 833                 if (i == 0 || page_info->page_offset == 0) {
 834                         /* First frag or Fresh page */
 835                         j++;
 836                         skb_shinfo(skb)->frags[j].page = page_info->page;
 837                         skb_shinfo(skb)->frags[j].page_offset =
 838                                                         page_info->page_offset;
 839                         skb_shinfo(skb)->frags[j].size = 0;
 840                 } else {
 841                         put_page(page_info->page);
 842                 }
 843                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 844
 845                 remaining -= curr_frag_len;
 846                 index_inc(&rxq_idx, rxq->len);
 847                 memset(page_info, 0, sizeof(*page_info));
 848         }
 849         BUG_ON(j > MAX_SKB_FRAGS);
 850
 851         skb_shinfo(skb)->nr_frags = j + 1;
 852         skb->len = pkt_size;
 853         skb->data_len = pkt_size;
 854         skb->truesize += pkt_size;
 855         skb->ip_summed = CHECKSUM_UNNECESSARY;
 856
 857         if (likely(!vlanf)) {
 858                 napi_gro_frags(&eq_obj->napi);
 859         } else {
 860                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 861                 vid = be16_to_cpu(vid);
 862
 863                 if (!adapter->vlan_grp || adapter->num_vlans == 0)
 864                         return;
 865
 866                 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
 867         }
 868
 869         be_rx_stats_update(adapter, pkt_size, num_rcvd);
 870         return;
 871 }
 872
 873 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
 874 {
 875         struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
 876
 877         if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
 878                 return NULL;
 879
 880         be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
 881
 882         queue_tail_inc(&adapter->rx_obj.cq);
 883         return rxcp;
 884 }
 885
 886 /* To reset the valid bit, we need to reset the whole word as
 887  * when walking the queue the valid entries are little-endian
 888  * and invalid entries are host endian
 889  */
 890 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
 891 {
 892         rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
 893 }
 894
 895 static inline struct page *be_alloc_pages(u32 size)
 896 {
 897         gfp_t alloc_flags = GFP_ATOMIC;
 898         u32 order = get_order(size);
 899         if (order > 0)
 900                 alloc_flags |= __GFP_COMP;
 901         return  alloc_pages(alloc_flags, order);
 902 }
 903
 904 /*
 905  * Allocate a page, split it to fragments of size rx_frag_size and post as
 906  * receive buffers to BE
 907  */
 908 static void be_post_rx_frags(struct be_adapter *adapter)
 909 {
 910         struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
 911         struct be_rx_page_info *page_info = NULL;
 912         struct be_queue_info *rxq = &adapter->rx_obj.q;
 913         struct page *pagep = NULL;
 914         struct be_eth_rx_d *rxd;
 915         u64 page_dmaaddr = 0, frag_dmaaddr;
 916         u32 posted, page_offset = 0;
 917
 918         page_info = &page_info_tbl[rxq->head];
 919         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
 920                 if (!pagep) {
 921                         pagep = be_alloc_pages(adapter->big_page_size);
 922                         if (unlikely(!pagep)) {
 923                                 drvr_stats(adapter)->be_ethrx_post_fail++;
 924                                 break;
 925                         }
 926                         page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
 927                                                 adapter->big_page_size,
 928                                                 PCI_DMA_FROMDEVICE);
 929                         page_info->page_offset = 0;
 930                 } else {
 931                         get_page(pagep);
 932                         page_info->page_offset = page_offset + rx_frag_size;
 933                 }
 934                 page_offset = page_info->page_offset;
 935                 page_info->page = pagep;
 936                 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
 937                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
 938
 939                 rxd = queue_head_node(rxq);
 940                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
 941                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
 942                 queue_head_inc(rxq);
 943
 944                 /* Any space left in the current big page for another frag? */
 945                 if ((page_offset + rx_frag_size + rx_frag_size) >
 946                                         adapter->big_page_size) {
 947                         pagep = NULL;
 948                         page_info->last_page_user = true;
 949                 }
 950                 page_info = &page_info_tbl[rxq->head];
 951         }
 952         if (pagep)
 953                 page_info->last_page_user = true;
 954
 955         if (posted) {
 956                 atomic_add(posted, &rxq->used);
 957                 be_rxq_notify(adapter, rxq->id, posted);
 958         } else if (atomic_read(&rxq->used) == 0) {
 959                 /* Let be_worker replenish when memory is available */
 960                 adapter->rx_post_starved = true;
 961         }
 962
 963         return;
 964 }
 965
 966 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
 967 {
 968         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
 969
 970         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
 971                 return NULL;
 972
 973         be_dws_le_to_cpu(txcp, sizeof(*txcp));
 974
 975         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
 976
 977         queue_tail_inc(tx_cq);
 978         return txcp;
 979 }
 980
 981 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
 982 {
 983         struct be_queue_info *txq = &adapter->tx_obj.q;
 984         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
 985         struct sk_buff *sent_skb;
 986         u16 cur_index, num_wrbs = 0;
 987
 988         cur_index = txq->tail;
 989         sent_skb = sent_skbs[cur_index];
 990         BUG_ON(!sent_skb);
 991         sent_skbs[cur_index] = NULL;
 992
 993         do {
 994                 cur_index = txq->tail;
 995                 num_wrbs++;
 996                 queue_tail_inc(txq);
 997         } while (cur_index != last_index);
 998
 999         atomic_sub(num_wrbs, &txq->used);
1000         skb_dma_unmap(&adapter->pdev->dev, sent_skb, DMA_TO_DEVICE);
1001         kfree_skb(sent_skb);
1002 }
1003
1004 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1005 {
1006         struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1007
1008         if (!eqe->evt)
1009                 return NULL;
1010
1011         eqe->evt = le32_to_cpu(eqe->evt);
1012         queue_tail_inc(&eq_obj->q);
1013         return eqe;
1014 }
1015
1016 static int event_handle(struct be_adapter *adapter,
1017                         struct be_eq_obj *eq_obj)
1018 {
1019         struct be_eq_entry *eqe;
1020         u16 num = 0;
1021
1022         while ((eqe = event_get(eq_obj)) != NULL) {
1023                 eqe->evt = 0;
1024                 num++;
1025         }
1026
1027         /* Deal with any spurious interrupts that come
1028          * without events
1029          */
1030         be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1031         if (num)
1032                 napi_schedule(&eq_obj->napi);
1033
1034         return num;
1035 }
1036
1037 /* Just read and notify events without processing them.
1038  * Used at the time of destroying event queues */
1039 static void be_eq_clean(struct be_adapter *adapter,
1040                         struct be_eq_obj *eq_obj)
1041 {
1042         struct be_eq_entry *eqe;
1043         u16 num = 0;
1044
1045         while ((eqe = event_get(eq_obj)) != NULL) {
1046                 eqe->evt = 0;
1047                 num++;
1048         }
1049
1050         if (num)
1051                 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1052 }
1053
1054 static void be_rx_q_clean(struct be_adapter *adapter)
1055 {
1056         struct be_rx_page_info *page_info;
1057         struct be_queue_info *rxq = &adapter->rx_obj.q;
1058         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1059         struct be_eth_rx_compl *rxcp;
1060         u16 tail;
1061
1062         /* First cleanup pending rx completions */
1063         while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1064                 be_rx_compl_discard(adapter, rxcp);
1065                 be_rx_compl_reset(rxcp);
1066                 be_cq_notify(adapter, rx_cq->id, true, 1);
1067         }
1068
1069         /* Then free posted rx buffer that were not used */
1070         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1071         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1072                 page_info = get_rx_page_info(adapter, tail);
1073                 put_page(page_info->page);
1074                 memset(page_info, 0, sizeof(*page_info));
1075         }
1076         BUG_ON(atomic_read(&rxq->used));
1077 }
1078
1079 static void be_tx_compl_clean(struct be_adapter *adapter)
1080 {
1081         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1082         struct be_queue_info *txq = &adapter->tx_obj.q;
1083         struct be_eth_tx_compl *txcp;
1084         u16 end_idx, cmpl = 0, timeo = 0;
1085
1086         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1087         do {
1088                 while ((txcp = be_tx_compl_get(tx_cq))) {
1089                         end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1090                                         wrb_index, txcp);
1091                         be_tx_compl_process(adapter, end_idx);
1092                         cmpl++;
1093                 }
1094                 if (cmpl) {
1095                         be_cq_notify(adapter, tx_cq->id, false, cmpl);
1096                         cmpl = 0;
1097                 }
1098
1099                 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1100                         break;
1101
1102                 mdelay(1);
1103         } while (true);
1104
1105         if (atomic_read(&txq->used))
1106                 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1107                         atomic_read(&txq->used));
1108 }
1109
1110 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1111 {
1112         struct be_queue_info *q;
1113
1114         q = &adapter->mcc_obj.q;
1115         if (q->created)
1116                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1117         be_queue_free(adapter, q);
1118
1119         q = &adapter->mcc_obj.cq;
1120         if (q->created)
1121                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1122         be_queue_free(adapter, q);
1123 }
1124
1125 /* Must be called only after TX qs are created as MCC shares TX EQ */
1126 static int be_mcc_queues_create(struct be_adapter *adapter)
1127 {
1128         struct be_queue_info *q, *cq;
1129
1130         /* Alloc MCC compl queue */
1131         cq = &adapter->mcc_obj.cq;
1132         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1133                         sizeof(struct be_mcc_compl)))
1134                 goto err;
1135
1136         /* Ask BE to create MCC compl queue; share TX's eq */
1137         if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1138                 goto mcc_cq_free;
1139
1140         /* Alloc MCC queue */
1141         q = &adapter->mcc_obj.q;
1142         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1143                 goto mcc_cq_destroy;
1144
1145         /* Ask BE to create MCC queue */
1146         if (be_cmd_mccq_create(adapter, q, cq))
1147                 goto mcc_q_free;
1148
1149         return 0;
1150
1151 mcc_q_free:
1152         be_queue_free(adapter, q);
1153 mcc_cq_destroy:
1154         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1155 mcc_cq_free:
1156         be_queue_free(adapter, cq);
1157 err:
1158         return -1;
1159 }
1160
1161 static void be_tx_queues_destroy(struct be_adapter *adapter)
1162 {
1163         struct be_queue_info *q;
1164
1165         q = &adapter->tx_obj.q;
1166         if (q->created)
1167                 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1168         be_queue_free(adapter, q);
1169
1170         q = &adapter->tx_obj.cq;
1171         if (q->created)
1172                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1173         be_queue_free(adapter, q);
1174
1175         /* Clear any residual events */
1176         be_eq_clean(adapter, &adapter->tx_eq);
1177
1178         q = &adapter->tx_eq.q;
1179         if (q->created)
1180                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1181         be_queue_free(adapter, q);
1182 }
1183
1184 static int be_tx_queues_create(struct be_adapter *adapter)
1185 {
1186         struct be_queue_info *eq, *q, *cq;
1187
1188         adapter->tx_eq.max_eqd = 0;
1189         adapter->tx_eq.min_eqd = 0;
1190         adapter->tx_eq.cur_eqd = 96;
1191         adapter->tx_eq.enable_aic = false;
1192         /* Alloc Tx Event queue */
1193         eq = &adapter->tx_eq.q;
1194         if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1195                 return -1;
1196
1197         /* Ask BE to create Tx Event queue */
1198         if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1199                 goto tx_eq_free;
1200         /* Alloc TX eth compl queue */
1201         cq = &adapter->tx_obj.cq;
1202         if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1203                         sizeof(struct be_eth_tx_compl)))
1204                 goto tx_eq_destroy;
1205
1206         /* Ask BE to create Tx eth compl queue */
1207         if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1208                 goto tx_cq_free;
1209
1210         /* Alloc TX eth queue */
1211         q = &adapter->tx_obj.q;
1212         if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1213                 goto tx_cq_destroy;
1214
1215         /* Ask BE to create Tx eth queue */
1216         if (be_cmd_txq_create(adapter, q, cq))
1217                 goto tx_q_free;
1218         return 0;
1219
1220 tx_q_free:
1221         be_queue_free(adapter, q);
1222 tx_cq_destroy:
1223         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1224 tx_cq_free:
1225         be_queue_free(adapter, cq);
1226 tx_eq_destroy:
1227         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1228 tx_eq_free:
1229         be_queue_free(adapter, eq);
1230         return -1;
1231 }
1232
1233 static void be_rx_queues_destroy(struct be_adapter *adapter)
1234 {
1235         struct be_queue_info *q;
1236
1237         q = &adapter->rx_obj.q;
1238         if (q->created) {
1239                 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1240                 be_rx_q_clean(adapter);
1241         }
1242         be_queue_free(adapter, q);
1243
1244         q = &adapter->rx_obj.cq;
1245         if (q->created)
1246                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1247         be_queue_free(adapter, q);
1248
1249         /* Clear any residual events */
1250         be_eq_clean(adapter, &adapter->rx_eq);
1251
1252         q = &adapter->rx_eq.q;
1253         if (q->created)
1254                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1255         be_queue_free(adapter, q);
1256 }
1257
1258 static int be_rx_queues_create(struct be_adapter *adapter)
1259 {
1260         struct be_queue_info *eq, *q, *cq;
1261         int rc;
1262
1263         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1264         adapter->rx_eq.max_eqd = BE_MAX_EQD;
1265         adapter->rx_eq.min_eqd = 0;
1266         adapter->rx_eq.cur_eqd = 0;
1267         adapter->rx_eq.enable_aic = true;
1268
1269         /* Alloc Rx Event queue */
1270         eq = &adapter->rx_eq.q;
1271         rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1272                                 sizeof(struct be_eq_entry));
1273         if (rc)
1274                 return rc;
1275
1276         /* Ask BE to create Rx Event queue */
1277         rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1278         if (rc)
1279                 goto rx_eq_free;
1280
1281         /* Alloc RX eth compl queue */
1282         cq = &adapter->rx_obj.cq;
1283         rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1284                         sizeof(struct be_eth_rx_compl));
1285         if (rc)
1286                 goto rx_eq_destroy;
1287
1288         /* Ask BE to create Rx eth compl queue */
1289         rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1290         if (rc)
1291                 goto rx_cq_free;
1292
1293         /* Alloc RX eth queue */
1294         q = &adapter->rx_obj.q;
1295         rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1296         if (rc)
1297                 goto rx_cq_destroy;
1298
1299         /* Ask BE to create Rx eth queue */
1300         rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1301                 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1302         if (rc)
1303                 goto rx_q_free;
1304
1305         return 0;
1306 rx_q_free:
1307         be_queue_free(adapter, q);
1308 rx_cq_destroy:
1309         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1310 rx_cq_free:
1311         be_queue_free(adapter, cq);
1312 rx_eq_destroy:
1313         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1314 rx_eq_free:
1315         be_queue_free(adapter, eq);
1316         return rc;
1317 }
1318
1319 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1320 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1321 {
1322         return eq_id - 8 * be_pci_func(adapter);
1323 }
1324
1325 static irqreturn_t be_intx(int irq, void *dev)
1326 {
1327         struct be_adapter *adapter = dev;
1328         int isr;
1329
1330         isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1331                         be_pci_func(adapter) * CEV_ISR_SIZE);
1332         if (!isr)
1333                 return IRQ_NONE;
1334
1335         event_handle(adapter, &adapter->tx_eq);
1336         event_handle(adapter, &adapter->rx_eq);
1337
1338         return IRQ_HANDLED;
1339 }
1340
1341 static irqreturn_t be_msix_rx(int irq, void *dev)
1342 {
1343         struct be_adapter *adapter = dev;
1344
1345         event_handle(adapter, &adapter->rx_eq);
1346
1347         return IRQ_HANDLED;
1348 }
1349
1350 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1351 {
1352         struct be_adapter *adapter = dev;
1353
1354         event_handle(adapter, &adapter->tx_eq);
1355
1356         return IRQ_HANDLED;
1357 }
1358
1359 static inline bool do_gro(struct be_adapter *adapter,
1360                         struct be_eth_rx_compl *rxcp)
1361 {
1362         int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1363         int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1364
1365         if (err)
1366                 drvr_stats(adapter)->be_rxcp_err++;
1367
1368         return (tcp_frame && !err) ? true : false;
1369 }
1370
1371 int be_poll_rx(struct napi_struct *napi, int budget)
1372 {
1373         struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1374         struct be_adapter *adapter =
1375                 container_of(rx_eq, struct be_adapter, rx_eq);
1376         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1377         struct be_eth_rx_compl *rxcp;
1378         u32 work_done;
1379
1380         for (work_done = 0; work_done < budget; work_done++) {
1381                 rxcp = be_rx_compl_get(adapter);
1382                 if (!rxcp)
1383                         break;
1384
1385                 if (do_gro(adapter, rxcp))
1386                         be_rx_compl_process_gro(adapter, rxcp);
1387                 else
1388                         be_rx_compl_process(adapter, rxcp);
1389
1390                 be_rx_compl_reset(rxcp);
1391         }
1392
1393         /* Refill the queue */
1394         if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1395                 be_post_rx_frags(adapter);
1396
1397         /* All consumed */
1398         if (work_done < budget) {
1399                 napi_complete(napi);
1400                 be_cq_notify(adapter, rx_cq->id, true, work_done);
1401         } else {
1402                 /* More to be consumed; continue with interrupts disabled */
1403                 be_cq_notify(adapter, rx_cq->id, false, work_done);
1404         }
1405         return work_done;
1406 }
1407
1408 void be_process_tx(struct be_adapter *adapter)
1409 {
1410         struct be_queue_info *txq = &adapter->tx_obj.q;
1411         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1412         struct be_eth_tx_compl *txcp;
1413         u32 num_cmpl = 0;
1414         u16 end_idx;
1415
1416         while ((txcp = be_tx_compl_get(tx_cq))) {
1417                 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1418                                         wrb_index, txcp);
1419                 be_tx_compl_process(adapter, end_idx);
1420                 num_cmpl++;
1421         }
1422
1423         if (num_cmpl) {
1424                 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1425
1426                 /* As Tx wrbs have been freed up, wake up netdev queue if
1427                  * it was stopped due to lack of tx wrbs.
1428                  */
1429                 if (netif_queue_stopped(adapter->netdev) &&
1430                         atomic_read(&txq->used) < txq->len / 2) {
1431                         netif_wake_queue(adapter->netdev);
1432                 }
1433
1434                 drvr_stats(adapter)->be_tx_events++;
1435                 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1436         }
1437 }
1438
1439 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1440  * For TX/MCC we don't honour budget; consume everything
1441  */
1442 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1443 {
1444         struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1445         struct be_adapter *adapter =
1446                 container_of(tx_eq, struct be_adapter, tx_eq);
1447
1448         napi_complete(napi);
1449
1450         be_process_tx(adapter);
1451
1452         be_process_mcc(adapter);
1453
1454         return 1;
1455 }
1456
1457 static void be_worker(struct work_struct *work)
1458 {
1459         struct be_adapter *adapter =
1460                 container_of(work, struct be_adapter, work.work);
1461
1462         be_cmd_get_stats(adapter, &adapter->stats.cmd);
1463
1464         /* Set EQ delay */
1465         be_rx_eqd_update(adapter);
1466
1467         be_tx_rate_update(adapter);
1468         be_rx_rate_update(adapter);
1469
1470         if (adapter->rx_post_starved) {
1471                 adapter->rx_post_starved = false;
1472                 be_post_rx_frags(adapter);
1473         }
1474
1475         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1476 }
1477
1478 static void be_msix_enable(struct be_adapter *adapter)
1479 {
1480         int i, status;
1481
1482         for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1483                 adapter->msix_entries[i].entry = i;
1484
1485         status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1486                 BE_NUM_MSIX_VECTORS);
1487         if (status == 0)
1488                 adapter->msix_enabled = true;
1489         return;
1490 }
1491
1492 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1493 {
1494         return adapter->msix_entries[
1495                         be_evt_bit_get(adapter, eq_id)].vector;
1496 }
1497
1498 static int be_request_irq(struct be_adapter *adapter,
1499                 struct be_eq_obj *eq_obj,
1500                 void *handler, char *desc)
1501 {
1502         struct net_device *netdev = adapter->netdev;
1503         int vec;
1504
1505         sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1506         vec = be_msix_vec_get(adapter, eq_obj->q.id);
1507         return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1508 }
1509
1510 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1511 {
1512         int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1513         free_irq(vec, adapter);
1514 }
1515
1516 static int be_msix_register(struct be_adapter *adapter)
1517 {
1518         int status;
1519
1520         status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1521         if (status)
1522                 goto err;
1523
1524         status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1525         if (status)
1526                 goto free_tx_irq;
1527
1528         return 0;
1529
1530 free_tx_irq:
1531         be_free_irq(adapter, &adapter->tx_eq);
1532 err:
1533         dev_warn(&adapter->pdev->dev,
1534                 "MSIX Request IRQ failed - err %d\n", status);
1535         pci_disable_msix(adapter->pdev);
1536         adapter->msix_enabled = false;
1537         return status;
1538 }
1539
1540 static int be_irq_register(struct be_adapter *adapter)
1541 {
1542         struct net_device *netdev = adapter->netdev;
1543         int status;
1544
1545         if (adapter->msix_enabled) {
1546                 status = be_msix_register(adapter);
1547                 if (status == 0)
1548                         goto done;
1549         }
1550
1551         /* INTx */
1552         netdev->irq = adapter->pdev->irq;
1553         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1554                         adapter);
1555         if (status) {
1556                 dev_err(&adapter->pdev->dev,
1557                         "INTx request IRQ failed - err %d\n", status);
1558                 return status;
1559         }
1560 done:
1561         adapter->isr_registered = true;
1562         return 0;
1563 }
1564
1565 static void be_irq_unregister(struct be_adapter *adapter)
1566 {
1567         struct net_device *netdev = adapter->netdev;
1568
1569         if (!adapter->isr_registered)
1570                 return;
1571
1572         /* INTx */
1573         if (!adapter->msix_enabled) {
1574                 free_irq(netdev->irq, adapter);
1575                 goto done;
1576         }
1577
1578         /* MSIx */
1579         be_free_irq(adapter, &adapter->tx_eq);
1580         be_free_irq(adapter, &adapter->rx_eq);
1581 done:
1582         adapter->isr_registered = false;
1583         return;
1584 }
1585
1586 static int be_open(struct net_device *netdev)
1587 {
1588         struct be_adapter *adapter = netdev_priv(netdev);
1589         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1590         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1591         bool link_up;
1592         int status;
1593
1594         /* First time posting */
1595         be_post_rx_frags(adapter);
1596
1597         napi_enable(&rx_eq->napi);
1598         napi_enable(&tx_eq->napi);
1599
1600         be_irq_register(adapter);
1601
1602         be_intr_set(adapter, true);
1603
1604         /* The evt queues are created in unarmed state; arm them */
1605         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1606         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1607
1608         /* Rx compl queue may be in unarmed state; rearm it */
1609         be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1610
1611         status = be_cmd_link_status_query(adapter, &link_up);
1612         if (status)
1613                 return status;
1614         be_link_status_update(adapter, link_up);
1615
1616         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1617         return 0;
1618 }
1619
1620 static int be_setup(struct be_adapter *adapter)
1621 {
1622         struct net_device *netdev = adapter->netdev;
1623         u32 if_flags;
1624         int status;
1625
1626         if_flags = BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_PROMISCUOUS |
1627                 BE_IF_FLAGS_MCAST_PROMISCUOUS | BE_IF_FLAGS_UNTAGGED |
1628                 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1629         status = be_cmd_if_create(adapter, if_flags, netdev->dev_addr,
1630                         false/* pmac_invalid */, &adapter->if_handle,
1631                         &adapter->pmac_id);
1632         if (status != 0)
1633                 goto do_none;
1634
1635
1636         status = be_tx_queues_create(adapter);
1637         if (status != 0)
1638                 goto if_destroy;
1639
1640         status = be_rx_queues_create(adapter);
1641         if (status != 0)
1642                 goto tx_qs_destroy;
1643
1644         status = be_mcc_queues_create(adapter);
1645         if (status != 0)
1646                 goto rx_qs_destroy;
1647
1648         status = be_vid_config(adapter);
1649         if (status != 0)
1650                 goto mccqs_destroy;
1651
1652         status = be_cmd_set_flow_control(adapter, true, true);
1653         if (status != 0)
1654                 goto mccqs_destroy;
1655         return 0;
1656
1657 mccqs_destroy:
1658         be_mcc_queues_destroy(adapter);
1659 rx_qs_destroy:
1660         be_rx_queues_destroy(adapter);
1661 tx_qs_destroy:
1662         be_tx_queues_destroy(adapter);
1663 if_destroy:
1664         be_cmd_if_destroy(adapter, adapter->if_handle);
1665 do_none:
1666         return status;
1667 }
1668
1669 static int be_clear(struct be_adapter *adapter)
1670 {
1671         be_mcc_queues_destroy(adapter);
1672         be_rx_queues_destroy(adapter);
1673         be_tx_queues_destroy(adapter);
1674
1675         be_cmd_if_destroy(adapter, adapter->if_handle);
1676
1677         return 0;
1678 }
1679
1680 static int be_close(struct net_device *netdev)
1681 {
1682         struct be_adapter *adapter = netdev_priv(netdev);
1683         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1684         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1685         int vec;
1686
1687         cancel_delayed_work_sync(&adapter->work);
1688
1689         netif_stop_queue(netdev);
1690         netif_carrier_off(netdev);
1691         adapter->link_up = false;
1692
1693         be_intr_set(adapter, false);
1694
1695         if (adapter->msix_enabled) {
1696                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1697                 synchronize_irq(vec);
1698                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1699                 synchronize_irq(vec);
1700         } else {
1701                 synchronize_irq(netdev->irq);
1702         }
1703         be_irq_unregister(adapter);
1704
1705         napi_disable(&rx_eq->napi);
1706         napi_disable(&tx_eq->napi);
1707
1708         /* Wait for all pending tx completions to arrive so that
1709          * all tx skbs are freed.
1710          */
1711         be_tx_compl_clean(adapter);
1712
1713         return 0;
1714 }
1715
1716 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
1717 char flash_cookie[2][16] =      {"*** SE FLAS",
1718                                 "H DIRECTORY *** "};
1719 static int be_flash_image(struct be_adapter *adapter,
1720                         const struct firmware *fw,
1721                         struct be_dma_mem *flash_cmd, u32 flash_type)
1722 {
1723         int status;
1724         u32 flash_op, image_offset = 0, total_bytes, image_size = 0;
1725         int num_bytes;
1726         const u8 *p = fw->data;
1727         struct be_cmd_write_flashrom *req = flash_cmd->va;
1728
1729         switch (flash_type) {
1730         case FLASHROM_TYPE_ISCSI_ACTIVE:
1731                 image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START;
1732                 image_size = FLASH_IMAGE_MAX_SIZE;
1733                 break;
1734         case FLASHROM_TYPE_ISCSI_BACKUP:
1735                 image_offset = FLASH_iSCSI_BACKUP_IMAGE_START;
1736                 image_size = FLASH_IMAGE_MAX_SIZE;
1737                 break;
1738         case FLASHROM_TYPE_FCOE_FW_ACTIVE:
1739                 image_offset = FLASH_FCoE_PRIMARY_IMAGE_START;
1740                 image_size = FLASH_IMAGE_MAX_SIZE;
1741                 break;
1742         case FLASHROM_TYPE_FCOE_FW_BACKUP:
1743                 image_offset = FLASH_FCoE_BACKUP_IMAGE_START;
1744                 image_size = FLASH_IMAGE_MAX_SIZE;
1745                 break;
1746         case FLASHROM_TYPE_BIOS:
1747                 image_offset = FLASH_iSCSI_BIOS_START;
1748                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1749                 break;
1750         case FLASHROM_TYPE_FCOE_BIOS:
1751                 image_offset = FLASH_FCoE_BIOS_START;
1752                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1753                 break;
1754         case FLASHROM_TYPE_PXE_BIOS:
1755                 image_offset = FLASH_PXE_BIOS_START;
1756                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1757                 break;
1758         default:
1759                 return 0;
1760         }
1761
1762         p += sizeof(struct flash_file_hdr) + image_offset;
1763         if (p + image_size > fw->data + fw->size)
1764                 return -1;
1765
1766         total_bytes = image_size;
1767
1768         while (total_bytes) {
1769                 if (total_bytes > 32*1024)
1770                         num_bytes = 32*1024;
1771                 else
1772                         num_bytes = total_bytes;
1773                 total_bytes -= num_bytes;
1774
1775                 if (!total_bytes)
1776                         flash_op = FLASHROM_OPER_FLASH;
1777                 else
1778                         flash_op = FLASHROM_OPER_SAVE;
1779                 memcpy(req->params.data_buf, p, num_bytes);
1780                 p += num_bytes;
1781                 status = be_cmd_write_flashrom(adapter, flash_cmd,
1782                                 flash_type, flash_op, num_bytes);
1783                 if (status) {
1784                         dev_err(&adapter->pdev->dev,
1785                         "cmd to write to flash rom failed. type/op %d/%d\n",
1786                         flash_type, flash_op);
1787                         return -1;
1788                 }
1789                 yield();
1790         }
1791
1792         return 0;
1793 }
1794
1795 int be_load_fw(struct be_adapter *adapter, u8 *func)
1796 {
1797         char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1798         const struct firmware *fw;
1799         struct flash_file_hdr *fhdr;
1800         struct flash_section_info *fsec = NULL;
1801         struct be_dma_mem flash_cmd;
1802         int status;
1803         const u8 *p;
1804         bool entry_found = false;
1805         int flash_type;
1806         char fw_ver[FW_VER_LEN];
1807         char fw_cfg;
1808
1809         status = be_cmd_get_fw_ver(adapter, fw_ver);
1810         if (status)
1811                 return status;
1812
1813         fw_cfg = *(fw_ver + 2);
1814         if (fw_cfg == '0')
1815                 fw_cfg = '1';
1816         strcpy(fw_file, func);
1817
1818         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1819         if (status)
1820                 goto fw_exit;
1821
1822         p = fw->data;
1823         fhdr = (struct flash_file_hdr *) p;
1824         if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) {
1825                 dev_err(&adapter->pdev->dev,
1826                         "Firmware(%s) load error (signature did not match)\n",
1827                                 fw_file);
1828                 status = -1;
1829                 goto fw_exit;
1830         }
1831
1832         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1833
1834         p += sizeof(struct flash_file_hdr);
1835         while (p < (fw->data + fw->size)) {
1836                 fsec = (struct flash_section_info *)p;
1837                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) {
1838                         entry_found = true;
1839                         break;
1840                 }
1841                 p += 32;
1842         }
1843
1844         if (!entry_found) {
1845                 status = -1;
1846                 dev_err(&adapter->pdev->dev,
1847                         "Flash cookie not found in firmware image\n");
1848                 goto fw_exit;
1849         }
1850
1851         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1852         flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1853                                         &flash_cmd.dma);
1854         if (!flash_cmd.va) {
1855                 status = -ENOMEM;
1856                 dev_err(&adapter->pdev->dev,
1857                         "Memory allocation failure while flashing\n");
1858                 goto fw_exit;
1859         }
1860
1861         for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE;
1862                 flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) {
1863                 status = be_flash_image(adapter, fw, &flash_cmd,
1864                                 flash_type);
1865                 if (status)
1866                         break;
1867         }
1868
1869         pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1870                                 flash_cmd.dma);
1871         if (status) {
1872                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
1873                 goto fw_exit;
1874         }
1875
1876         dev_info(&adapter->pdev->dev, "Firmware flashed succesfully\n");
1877
1878 fw_exit:
1879         release_firmware(fw);
1880         return status;
1881 }
1882
1883 static struct net_device_ops be_netdev_ops = {
1884         .ndo_open               = be_open,
1885         .ndo_stop               = be_close,
1886         .ndo_start_xmit         = be_xmit,
1887         .ndo_get_stats          = be_get_stats,
1888         .ndo_set_rx_mode        = be_set_multicast_list,
1889         .ndo_set_mac_address    = be_mac_addr_set,
1890         .ndo_change_mtu         = be_change_mtu,
1891         .ndo_validate_addr      = eth_validate_addr,
1892         .ndo_vlan_rx_register   = be_vlan_register,
1893         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
1894         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
1895 };
1896
1897 static void be_netdev_init(struct net_device *netdev)
1898 {
1899         struct be_adapter *adapter = netdev_priv(netdev);
1900
1901         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1902                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM |
1903                 NETIF_F_IPV6_CSUM | NETIF_F_GRO;
1904
1905         netdev->flags |= IFF_MULTICAST;
1906
1907         adapter->rx_csum = true;
1908
1909         netif_set_gso_max_size(netdev, 65535);
1910
1911         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1912
1913         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1914
1915         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1916                 BE_NAPI_WEIGHT);
1917         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
1918                 BE_NAPI_WEIGHT);
1919
1920         netif_carrier_off(netdev);
1921         netif_stop_queue(netdev);
1922 }
1923
1924 static void be_unmap_pci_bars(struct be_adapter *adapter)
1925 {
1926         if (adapter->csr)
1927                 iounmap(adapter->csr);
1928         if (adapter->db)
1929                 iounmap(adapter->db);
1930         if (adapter->pcicfg)
1931                 iounmap(adapter->pcicfg);
1932 }
1933
1934 static int be_map_pci_bars(struct be_adapter *adapter)
1935 {
1936         u8 __iomem *addr;
1937
1938         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
1939                         pci_resource_len(adapter->pdev, 2));
1940         if (addr == NULL)
1941                 return -ENOMEM;
1942         adapter->csr = addr;
1943
1944         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
1945                         128 * 1024);
1946         if (addr == NULL)
1947                 goto pci_map_err;
1948         adapter->db = addr;
1949
1950         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
1951                         pci_resource_len(adapter->pdev, 1));
1952         if (addr == NULL)
1953                 goto pci_map_err;
1954         adapter->pcicfg = addr;
1955
1956         return 0;
1957 pci_map_err:
1958         be_unmap_pci_bars(adapter);
1959         return -ENOMEM;
1960 }
1961
1962
1963 static void be_ctrl_cleanup(struct be_adapter *adapter)
1964 {
1965         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
1966
1967         be_unmap_pci_bars(adapter);
1968
1969         if (mem->va)
1970                 pci_free_consistent(adapter->pdev, mem->size,
1971                         mem->va, mem->dma);
1972 }
1973
1974 static int be_ctrl_init(struct be_adapter *adapter)
1975 {
1976         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
1977         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
1978         int status;
1979
1980         status = be_map_pci_bars(adapter);
1981         if (status)
1982                 return status;
1983
1984         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
1985         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
1986                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
1987         if (!mbox_mem_alloc->va) {
1988                 be_unmap_pci_bars(adapter);
1989                 return -1;
1990         }
1991         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
1992         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
1993         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
1994         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
1995         spin_lock_init(&adapter->mbox_lock);
1996         spin_lock_init(&adapter->mcc_lock);
1997         spin_lock_init(&adapter->mcc_cq_lock);
1998
1999         return 0;
2000 }
2001
2002 static void be_stats_cleanup(struct be_adapter *adapter)
2003 {
2004         struct be_stats_obj *stats = &adapter->stats;
2005         struct be_dma_mem *cmd = &stats->cmd;
2006
2007         if (cmd->va)
2008                 pci_free_consistent(adapter->pdev, cmd->size,
2009                         cmd->va, cmd->dma);
2010 }
2011
2012 static int be_stats_init(struct be_adapter *adapter)
2013 {
2014         struct be_stats_obj *stats = &adapter->stats;
2015         struct be_dma_mem *cmd = &stats->cmd;
2016
2017         cmd->size = sizeof(struct be_cmd_req_get_stats);
2018         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2019         if (cmd->va == NULL)
2020                 return -1;
2021         return 0;
2022 }
2023
2024 static void __devexit be_remove(struct pci_dev *pdev)
2025 {
2026         struct be_adapter *adapter = pci_get_drvdata(pdev);
2027         if (!adapter)
2028                 return;
2029
2030         unregister_netdev(adapter->netdev);
2031
2032         be_clear(adapter);
2033
2034         be_stats_cleanup(adapter);
2035
2036         be_ctrl_cleanup(adapter);
2037
2038         if (adapter->msix_enabled) {
2039                 pci_disable_msix(adapter->pdev);
2040                 adapter->msix_enabled = false;
2041         }
2042
2043         pci_set_drvdata(pdev, NULL);
2044         pci_release_regions(pdev);
2045         pci_disable_device(pdev);
2046
2047         free_netdev(adapter->netdev);
2048 }
2049
2050 static int be_hw_up(struct be_adapter *adapter)
2051 {
2052         int status;
2053
2054         status = be_cmd_POST(adapter);
2055         if (status)
2056                 return status;
2057
2058         status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2059         if (status)
2060                 return status;
2061
2062         status = be_cmd_query_fw_cfg(adapter,
2063                                 &adapter->port_num, &adapter->cap);
2064         return status;
2065 }
2066
2067 static int __devinit be_probe(struct pci_dev *pdev,
2068                         const struct pci_device_id *pdev_id)
2069 {
2070         int status = 0;
2071         struct be_adapter *adapter;
2072         struct net_device *netdev;
2073         u8 mac[ETH_ALEN];
2074
2075         status = pci_enable_device(pdev);
2076         if (status)
2077                 goto do_none;
2078
2079         status = pci_request_regions(pdev, DRV_NAME);
2080         if (status)
2081                 goto disable_dev;
2082         pci_set_master(pdev);
2083
2084         netdev = alloc_etherdev(sizeof(struct be_adapter));
2085         if (netdev == NULL) {
2086                 status = -ENOMEM;
2087                 goto rel_reg;
2088         }
2089         adapter = netdev_priv(netdev);
2090         adapter->pdev = pdev;
2091         pci_set_drvdata(pdev, adapter);
2092         adapter->netdev = netdev;
2093
2094         be_msix_enable(adapter);
2095
2096         status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2097         if (!status) {
2098                 netdev->features |= NETIF_F_HIGHDMA;
2099         } else {
2100                 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2101                 if (status) {
2102                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2103                         goto free_netdev;
2104                 }
2105         }
2106
2107         status = be_ctrl_init(adapter);
2108         if (status)
2109                 goto free_netdev;
2110
2111         status = be_cmd_reset_function(adapter);
2112         if (status)
2113                 goto ctrl_clean;
2114
2115         status = be_stats_init(adapter);
2116         if (status)
2117                 goto ctrl_clean;
2118
2119         status = be_hw_up(adapter);
2120         if (status)
2121                 goto stats_clean;
2122
2123         status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK,
2124                         true /* permanent */, 0);
2125         if (status)
2126                 goto stats_clean;
2127         memcpy(netdev->dev_addr, mac, ETH_ALEN);
2128
2129         INIT_DELAYED_WORK(&adapter->work, be_worker);
2130         be_netdev_init(netdev);
2131         SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
2132
2133         status = be_setup(adapter);
2134         if (status)
2135                 goto stats_clean;
2136         status = register_netdev(netdev);
2137         if (status != 0)
2138                 goto unsetup;
2139
2140         dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2141         return 0;
2142
2143 unsetup:
2144         be_clear(adapter);
2145 stats_clean:
2146         be_stats_cleanup(adapter);
2147 ctrl_clean:
2148         be_ctrl_cleanup(adapter);
2149 free_netdev:
2150         free_netdev(adapter->netdev);
2151 rel_reg:
2152         pci_release_regions(pdev);
2153 disable_dev:
2154         pci_disable_device(pdev);
2155 do_none:
2156         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2157         return status;
2158 }
2159
2160 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2161 {
2162         struct be_adapter *adapter = pci_get_drvdata(pdev);
2163         struct net_device *netdev =  adapter->netdev;
2164
2165         netif_device_detach(netdev);
2166         if (netif_running(netdev)) {
2167                 rtnl_lock();
2168                 be_close(netdev);
2169                 rtnl_unlock();
2170         }
2171         be_clear(adapter);
2172
2173         pci_save_state(pdev);
2174         pci_disable_device(pdev);
2175         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2176         return 0;
2177 }
2178
2179 static int be_resume(struct pci_dev *pdev)
2180 {
2181         int status = 0;
2182         struct be_adapter *adapter = pci_get_drvdata(pdev);
2183         struct net_device *netdev =  adapter->netdev;
2184
2185         netif_device_detach(netdev);
2186
2187         status = pci_enable_device(pdev);
2188         if (status)
2189                 return status;
2190
2191         pci_set_power_state(pdev, 0);
2192         pci_restore_state(pdev);
2193
2194         be_setup(adapter);
2195         if (netif_running(netdev)) {
2196                 rtnl_lock();
2197                 be_open(netdev);
2198                 rtnl_unlock();
2199         }
2200         netif_device_attach(netdev);
2201         return 0;
2202 }
2203
2204 static struct pci_driver be_driver = {
2205         .name = DRV_NAME,
2206         .id_table = be_dev_ids,
2207         .probe = be_probe,
2208         .remove = be_remove,
2209         .suspend = be_suspend,
2210         .resume = be_resume
2211 };
2212
2213 static int __init be_init_module(void)
2214 {
2215         if (rx_frag_size != 8192 && rx_frag_size != 4096
2216                 && rx_frag_size != 2048) {
2217                 printk(KERN_WARNING DRV_NAME
2218                         " : Module param rx_frag_size must be 2048/4096/8192."
2219                         " Using 2048\n");
2220                 rx_frag_size = 2048;
2221         }
2222
2223         return pci_register_driver(&be_driver);
2224 }
2225 module_init(be_init_module);
2226
2227 static void __exit be_exit_module(void)
2228 {
2229         pci_unregister_driver(&be_driver);
2230 }
2231 module_exit(be_exit_module);