drivers/net/benet/be_main.c

   1 /*
   2  * Copyright (C) 2005 - 2009 ServerEngines
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@serverengines.com
  12  *
  13  * ServerEngines
  14  * 209 N. Fair Oaks Ave
  15  * Sunnyvale, CA 94085
  16  */
  17
  18 #include "be.h"
  19 #include "be_cmds.h"
  20 #include <asm/div64.h>
  21
  22 MODULE_VERSION(DRV_VER);
  23 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  24 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  25 MODULE_AUTHOR("ServerEngines Corporation");
  26 MODULE_LICENSE("GPL");
  27
  28 static unsigned int rx_frag_size = 2048;
  29 module_param(rx_frag_size, uint, S_IRUGO);
  30 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  31
  32 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  33         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  34         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  35         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  36         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  37         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
  38         { 0 }
  39 };
  40 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  41
  42 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
  43 {
  44         struct be_dma_mem *mem = &q->dma_mem;
  45         if (mem->va)
  46                 pci_free_consistent(adapter->pdev, mem->size,
  47                         mem->va, mem->dma);
  48 }
  49
  50 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
  51                 u16 len, u16 entry_size)
  52 {
  53         struct be_dma_mem *mem = &q->dma_mem;
  54
  55         memset(q, 0, sizeof(*q));
  56         q->len = len;
  57         q->entry_size = entry_size;
  58         mem->size = len * entry_size;
  59         mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
  60         if (!mem->va)
  61                 return -1;
  62         memset(mem->va, 0, mem->size);
  63         return 0;
  64 }
  65
  66 static void be_intr_set(struct be_adapter *adapter, bool enable)
  67 {
  68         u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
  69         u32 reg = ioread32(addr);
  70         u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  71
  72         if (!enabled && enable)
  73                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  74         else if (enabled && !enable)
  75                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  76         else
  77                 return;
  78
  79         iowrite32(reg, addr);
  80 }
  81
  82 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
  83 {
  84         u32 val = 0;
  85         val |= qid & DB_RQ_RING_ID_MASK;
  86         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
  87         iowrite32(val, adapter->db + DB_RQ_OFFSET);
  88 }
  89
  90 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
  91 {
  92         u32 val = 0;
  93         val |= qid & DB_TXULP_RING_ID_MASK;
  94         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
  95         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
  96 }
  97
  98 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
  99                 bool arm, bool clear_int, u16 num_popped)
 100 {
 101         u32 val = 0;
 102         val |= qid & DB_EQ_RING_ID_MASK;
 103         if (arm)
 104                 val |= 1 << DB_EQ_REARM_SHIFT;
 105         if (clear_int)
 106                 val |= 1 << DB_EQ_CLR_SHIFT;
 107         val |= 1 << DB_EQ_EVNT_SHIFT;
 108         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 109         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 110 }
 111
 112 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 113 {
 114         u32 val = 0;
 115         val |= qid & DB_CQ_RING_ID_MASK;
 116         if (arm)
 117                 val |= 1 << DB_CQ_REARM_SHIFT;
 118         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 119         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 120 }
 121
 122 static int be_mac_addr_set(struct net_device *netdev, void *p)
 123 {
 124         struct be_adapter *adapter = netdev_priv(netdev);
 125         struct sockaddr *addr = p;
 126         int status = 0;
 127
 128         if (!is_valid_ether_addr(addr->sa_data))
 129                 return -EADDRNOTAVAIL;
 130
 131         status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
 132         if (status)
 133                 return status;
 134
 135         status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 136                         adapter->if_handle, &adapter->pmac_id);
 137         if (!status)
 138                 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 139
 140         return status;
 141 }
 142
 143 void netdev_stats_update(struct be_adapter *adapter)
 144 {
 145         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
 146         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
 147         struct be_port_rxf_stats *port_stats =
 148                         &rxf_stats->port[adapter->port_num];
 149         struct net_device_stats *dev_stats = &adapter->netdev->stats;
 150         struct be_erx_stats *erx_stats = &hw_stats->erx;
 151
 152         dev_stats->rx_packets = port_stats->rx_total_frames;
 153         dev_stats->tx_packets = port_stats->tx_unicastframes +
 154                 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
 155         dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
 156                                 (u64) port_stats->rx_bytes_lsd;
 157         dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
 158                                 (u64) port_stats->tx_bytes_lsd;
 159
 160         /* bad pkts received */
 161         dev_stats->rx_errors = port_stats->rx_crc_errors +
 162                 port_stats->rx_alignment_symbol_errors +
 163                 port_stats->rx_in_range_errors +
 164                 port_stats->rx_out_range_errors +
 165                 port_stats->rx_frame_too_long +
 166                 port_stats->rx_dropped_too_small +
 167                 port_stats->rx_dropped_too_short +
 168                 port_stats->rx_dropped_header_too_small +
 169                 port_stats->rx_dropped_tcp_length +
 170                 port_stats->rx_dropped_runt +
 171                 port_stats->rx_tcp_checksum_errs +
 172                 port_stats->rx_ip_checksum_errs +
 173                 port_stats->rx_udp_checksum_errs;
 174
 175         /*  no space in linux buffers: best possible approximation */
 176         dev_stats->rx_dropped =
 177                 erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id];
 178
 179         /* detailed rx errors */
 180         dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
 181                 port_stats->rx_out_range_errors +
 182                 port_stats->rx_frame_too_long;
 183
 184         /* receive ring buffer overflow */
 185         dev_stats->rx_over_errors = 0;
 186
 187         dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
 188
 189         /* frame alignment errors */
 190         dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
 191
 192         /* receiver fifo overrun */
 193         /* drops_no_pbuf is no per i/f, it's per BE card */
 194         dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
 195                                         port_stats->rx_input_fifo_overflow +
 196                                         rxf_stats->rx_drops_no_pbuf;
 197         /* receiver missed packetd */
 198         dev_stats->rx_missed_errors = 0;
 199
 200         /*  packet transmit problems */
 201         dev_stats->tx_errors = 0;
 202
 203         /* no space available in linux */
 204         dev_stats->tx_dropped = 0;
 205
 206         dev_stats->multicast = port_stats->rx_multicast_frames;
 207         dev_stats->collisions = 0;
 208
 209         /* detailed tx_errors */
 210         dev_stats->tx_aborted_errors = 0;
 211         dev_stats->tx_carrier_errors = 0;
 212         dev_stats->tx_fifo_errors = 0;
 213         dev_stats->tx_heartbeat_errors = 0;
 214         dev_stats->tx_window_errors = 0;
 215 }
 216
 217 void be_link_status_update(struct be_adapter *adapter, bool link_up)
 218 {
 219         struct net_device *netdev = adapter->netdev;
 220
 221         /* If link came up or went down */
 222         if (adapter->link_up != link_up) {
 223                 adapter->link_speed = -1;
 224                 if (link_up) {
 225                         netif_start_queue(netdev);
 226                         netif_carrier_on(netdev);
 227                         printk(KERN_INFO "%s: Link up\n", netdev->name);
 228                 } else {
 229                         netif_stop_queue(netdev);
 230                         netif_carrier_off(netdev);
 231                         printk(KERN_INFO "%s: Link down\n", netdev->name);
 232                 }
 233                 adapter->link_up = link_up;
 234         }
 235 }
 236
 237 /* Update the EQ delay n BE based on the RX frags consumed / sec */
 238 static void be_rx_eqd_update(struct be_adapter *adapter)
 239 {
 240         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 241         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 242         ulong now = jiffies;
 243         u32 eqd;
 244
 245         if (!rx_eq->enable_aic)
 246                 return;
 247
 248         /* Wrapped around */
 249         if (time_before(now, stats->rx_fps_jiffies)) {
 250                 stats->rx_fps_jiffies = now;
 251                 return;
 252         }
 253
 254         /* Update once a second */
 255         if ((now - stats->rx_fps_jiffies) < HZ)
 256                 return;
 257
 258         stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
 259                         ((now - stats->rx_fps_jiffies) / HZ);
 260
 261         stats->rx_fps_jiffies = now;
 262         stats->be_prev_rx_frags = stats->be_rx_frags;
 263         eqd = stats->be_rx_fps / 110000;
 264         eqd = eqd << 3;
 265         if (eqd > rx_eq->max_eqd)
 266                 eqd = rx_eq->max_eqd;
 267         if (eqd < rx_eq->min_eqd)
 268                 eqd = rx_eq->min_eqd;
 269         if (eqd < 10)
 270                 eqd = 0;
 271         if (eqd != rx_eq->cur_eqd)
 272                 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
 273
 274         rx_eq->cur_eqd = eqd;
 275 }
 276
 277 static struct net_device_stats *be_get_stats(struct net_device *dev)
 278 {
 279         return &dev->stats;
 280 }
 281
 282 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
 283 {
 284         u64 rate = bytes;
 285
 286         do_div(rate, ticks / HZ);
 287         rate <<= 3;                     /* bytes/sec -> bits/sec */
 288         do_div(rate, 1000000ul);        /* MB/Sec */
 289
 290         return rate;
 291 }
 292
 293 static void be_tx_rate_update(struct be_adapter *adapter)
 294 {
 295         struct be_drvr_stats *stats = drvr_stats(adapter);
 296         ulong now = jiffies;
 297
 298         /* Wrapped around? */
 299         if (time_before(now, stats->be_tx_jiffies)) {
 300                 stats->be_tx_jiffies = now;
 301                 return;
 302         }
 303
 304         /* Update tx rate once in two seconds */
 305         if ((now - stats->be_tx_jiffies) > 2 * HZ) {
 306                 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
 307                                                   - stats->be_tx_bytes_prev,
 308                                                  now - stats->be_tx_jiffies);
 309                 stats->be_tx_jiffies = now;
 310                 stats->be_tx_bytes_prev = stats->be_tx_bytes;
 311         }
 312 }
 313
 314 static void be_tx_stats_update(struct be_adapter *adapter,
 315                         u32 wrb_cnt, u32 copied, bool stopped)
 316 {
 317         struct be_drvr_stats *stats = drvr_stats(adapter);
 318         stats->be_tx_reqs++;
 319         stats->be_tx_wrbs += wrb_cnt;
 320         stats->be_tx_bytes += copied;
 321         if (stopped)
 322                 stats->be_tx_stops++;
 323 }
 324
 325 /* Determine number of WRB entries needed to xmit data in an skb */
 326 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
 327 {
 328         int cnt = (skb->len > skb->data_len);
 329
 330         cnt += skb_shinfo(skb)->nr_frags;
 331
 332         /* to account for hdr wrb */
 333         cnt++;
 334         if (cnt & 1) {
 335                 /* add a dummy to make it an even num */
 336                 cnt++;
 337                 *dummy = true;
 338         } else
 339                 *dummy = false;
 340         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 341         return cnt;
 342 }
 343
 344 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 345 {
 346         wrb->frag_pa_hi = upper_32_bits(addr);
 347         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 348         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 349 }
 350
 351 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
 352                 bool vlan, u32 wrb_cnt, u32 len)
 353 {
 354         memset(hdr, 0, sizeof(*hdr));
 355
 356         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 357
 358         if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
 359                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 360                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 361                         hdr, skb_shinfo(skb)->gso_size);
 362         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 363                 if (is_tcp_pkt(skb))
 364                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 365                 else if (is_udp_pkt(skb))
 366                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 367         }
 368
 369         if (vlan && vlan_tx_tag_present(skb)) {
 370                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 371                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
 372                         hdr, vlan_tx_tag_get(skb));
 373         }
 374
 375         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 376         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 377         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 378         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 379 }
 380
 381
 382 static int make_tx_wrbs(struct be_adapter *adapter,
 383                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 384 {
 385         u64 busaddr;
 386         u32 i, copied = 0;
 387         struct pci_dev *pdev = adapter->pdev;
 388         struct sk_buff *first_skb = skb;
 389         struct be_queue_info *txq = &adapter->tx_obj.q;
 390         struct be_eth_wrb *wrb;
 391         struct be_eth_hdr_wrb *hdr;
 392
 393         hdr = queue_head_node(txq);
 394         atomic_add(wrb_cnt, &txq->used);
 395         queue_head_inc(txq);
 396
 397         if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) {
 398                 dev_err(&pdev->dev, "TX DMA mapping failed\n");
 399                 return 0;
 400         }
 401
 402         if (skb->len > skb->data_len) {
 403                 int len = skb->len - skb->data_len;
 404                 wrb = queue_head_node(txq);
 405                 busaddr = skb_shinfo(skb)->dma_head;
 406                 wrb_fill(wrb, busaddr, len);
 407                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 408                 queue_head_inc(txq);
 409                 copied += len;
 410         }
 411
 412         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 413                 struct skb_frag_struct *frag =
 414                         &skb_shinfo(skb)->frags[i];
 415
 416                 busaddr = skb_shinfo(skb)->dma_maps[i];
 417                 wrb = queue_head_node(txq);
 418                 wrb_fill(wrb, busaddr, frag->size);
 419                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 420                 queue_head_inc(txq);
 421                 copied += frag->size;
 422         }
 423
 424         if (dummy_wrb) {
 425                 wrb = queue_head_node(txq);
 426                 wrb_fill(wrb, 0, 0);
 427                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 428                 queue_head_inc(txq);
 429         }
 430
 431         wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
 432                 wrb_cnt, copied);
 433         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 434
 435         return copied;
 436 }
 437
 438 static netdev_tx_t be_xmit(struct sk_buff *skb,
 439                         struct net_device *netdev)
 440 {
 441         struct be_adapter *adapter = netdev_priv(netdev);
 442         struct be_tx_obj *tx_obj = &adapter->tx_obj;
 443         struct be_queue_info *txq = &tx_obj->q;
 444         u32 wrb_cnt = 0, copied = 0;
 445         u32 start = txq->head;
 446         bool dummy_wrb, stopped = false;
 447
 448         wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
 449
 450         copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
 451         if (copied) {
 452                 /* record the sent skb in the sent_skb table */
 453                 BUG_ON(tx_obj->sent_skb_list[start]);
 454                 tx_obj->sent_skb_list[start] = skb;
 455
 456                 /* Ensure txq has space for the next skb; Else stop the queue
 457                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 458                  * tx compls of the current transmit which'll wake up the queue
 459                  */
 460                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 461                                                                 txq->len) {
 462                         netif_stop_queue(netdev);
 463                         stopped = true;
 464                 }
 465
 466                 be_txq_notify(adapter, txq->id, wrb_cnt);
 467
 468                 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
 469         } else {
 470                 txq->head = start;
 471                 dev_kfree_skb_any(skb);
 472         }
 473         return NETDEV_TX_OK;
 474 }
 475
 476 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 477 {
 478         struct be_adapter *adapter = netdev_priv(netdev);
 479         if (new_mtu < BE_MIN_MTU ||
 480                         new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
 481                 dev_info(&adapter->pdev->dev,
 482                         "MTU must be between %d and %d bytes\n",
 483                         BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
 484                 return -EINVAL;
 485         }
 486         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 487                         netdev->mtu, new_mtu);
 488         netdev->mtu = new_mtu;
 489         return 0;
 490 }
 491
 492 /*
 493  * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
 494  * program them in BE.  If more than BE_NUM_VLANS_SUPPORTED are configured,
 495  * set the BE in promiscuous VLAN mode.
 496  */
 497 static int be_vid_config(struct be_adapter *adapter)
 498 {
 499         u16 vtag[BE_NUM_VLANS_SUPPORTED];
 500         u16 ntags = 0, i;
 501         int status;
 502
 503         if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED)  {
 504                 /* Construct VLAN Table to give to HW */
 505                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
 506                         if (adapter->vlan_tag[i]) {
 507                                 vtag[ntags] = cpu_to_le16(i);
 508                                 ntags++;
 509                         }
 510                 }
 511                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 512                                         vtag, ntags, 1, 0);
 513         } else {
 514                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 515                                         NULL, 0, 1, 1);
 516         }
 517         return status;
 518 }
 519
 520 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
 521 {
 522         struct be_adapter *adapter = netdev_priv(netdev);
 523         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 524         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 525
 526         be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
 527         be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
 528         adapter->vlan_grp = grp;
 529         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
 530         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
 531 }
 532
 533 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
 534 {
 535         struct be_adapter *adapter = netdev_priv(netdev);
 536
 537         adapter->num_vlans++;
 538         adapter->vlan_tag[vid] = 1;
 539
 540         be_vid_config(adapter);
 541 }
 542
 543 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 544 {
 545         struct be_adapter *adapter = netdev_priv(netdev);
 546
 547         adapter->num_vlans--;
 548         adapter->vlan_tag[vid] = 0;
 549
 550         vlan_group_set_device(adapter->vlan_grp, vid, NULL);
 551         be_vid_config(adapter);
 552 }
 553
 554 static void be_set_multicast_list(struct net_device *netdev)
 555 {
 556         struct be_adapter *adapter = netdev_priv(netdev);
 557
 558         if (netdev->flags & IFF_PROMISC) {
 559                 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
 560                 adapter->promiscuous = true;
 561                 goto done;
 562         }
 563
 564         /* BE was previously in promiscous mode; disable it */
 565         if (adapter->promiscuous) {
 566                 adapter->promiscuous = false;
 567                 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
 568         }
 569
 570         /* Enable multicast promisc if num configured exceeds what we support */
 571         if (netdev->flags & IFF_ALLMULTI || netdev->mc_count > BE_MAX_MC) {
 572                 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0,
 573                                 &adapter->mc_cmd_mem);
 574                 goto done;
 575         }
 576
 577         be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
 578                 netdev->mc_count, &adapter->mc_cmd_mem);
 579 done:
 580         return;
 581 }
 582
 583 static void be_rx_rate_update(struct be_adapter *adapter)
 584 {
 585         struct be_drvr_stats *stats = drvr_stats(adapter);
 586         ulong now = jiffies;
 587
 588         /* Wrapped around */
 589         if (time_before(now, stats->be_rx_jiffies)) {
 590                 stats->be_rx_jiffies = now;
 591                 return;
 592         }
 593
 594         /* Update the rate once in two seconds */
 595         if ((now - stats->be_rx_jiffies) < 2 * HZ)
 596                 return;
 597
 598         stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
 599                                           - stats->be_rx_bytes_prev,
 600                                          now - stats->be_rx_jiffies);
 601         stats->be_rx_jiffies = now;
 602         stats->be_rx_bytes_prev = stats->be_rx_bytes;
 603 }
 604
 605 static void be_rx_stats_update(struct be_adapter *adapter,
 606                 u32 pktsize, u16 numfrags)
 607 {
 608         struct be_drvr_stats *stats = drvr_stats(adapter);
 609
 610         stats->be_rx_compl++;
 611         stats->be_rx_frags += numfrags;
 612         stats->be_rx_bytes += pktsize;
 613 }
 614
 615 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
 616 {
 617         u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
 618
 619         l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
 620         ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
 621         ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
 622         if (ip_version) {
 623                 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
 624                 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
 625         }
 626         ipv6_chk = (ip_version && (tcpf || udpf));
 627
 628         return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
 629 }
 630
 631 static struct be_rx_page_info *
 632 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
 633 {
 634         struct be_rx_page_info *rx_page_info;
 635         struct be_queue_info *rxq = &adapter->rx_obj.q;
 636
 637         rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
 638         BUG_ON(!rx_page_info->page);
 639
 640         if (rx_page_info->last_page_user)
 641                 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
 642                         adapter->big_page_size, PCI_DMA_FROMDEVICE);
 643
 644         atomic_dec(&rxq->used);
 645         return rx_page_info;
 646 }
 647
 648 /* Throwaway the data in the Rx completion */
 649 static void be_rx_compl_discard(struct be_adapter *adapter,
 650                         struct be_eth_rx_compl *rxcp)
 651 {
 652         struct be_queue_info *rxq = &adapter->rx_obj.q;
 653         struct be_rx_page_info *page_info;
 654         u16 rxq_idx, i, num_rcvd;
 655
 656         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 657         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 658
 659         for (i = 0; i < num_rcvd; i++) {
 660                 page_info = get_rx_page_info(adapter, rxq_idx);
 661                 put_page(page_info->page);
 662                 memset(page_info, 0, sizeof(*page_info));
 663                 index_inc(&rxq_idx, rxq->len);
 664         }
 665 }
 666
 667 /*
 668  * skb_fill_rx_data forms a complete skb for an ether frame
 669  * indicated by rxcp.
 670  */
 671 static void skb_fill_rx_data(struct be_adapter *adapter,
 672                         struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
 673 {
 674         struct be_queue_info *rxq = &adapter->rx_obj.q;
 675         struct be_rx_page_info *page_info;
 676         u16 rxq_idx, i, num_rcvd, j;
 677         u32 pktsize, hdr_len, curr_frag_len, size;
 678         u8 *start;
 679
 680         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 681         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 682         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 683
 684         page_info = get_rx_page_info(adapter, rxq_idx);
 685
 686         start = page_address(page_info->page) + page_info->page_offset;
 687         prefetch(start);
 688
 689         /* Copy data in the first descriptor of this completion */
 690         curr_frag_len = min(pktsize, rx_frag_size);
 691
 692         /* Copy the header portion into skb_data */
 693         hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
 694         memcpy(skb->data, start, hdr_len);
 695         skb->len = curr_frag_len;
 696         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
 697                 /* Complete packet has now been moved to data */
 698                 put_page(page_info->page);
 699                 skb->data_len = 0;
 700                 skb->tail += curr_frag_len;
 701         } else {
 702                 skb_shinfo(skb)->nr_frags = 1;
 703                 skb_shinfo(skb)->frags[0].page = page_info->page;
 704                 skb_shinfo(skb)->frags[0].page_offset =
 705                                         page_info->page_offset + hdr_len;
 706                 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
 707                 skb->data_len = curr_frag_len - hdr_len;
 708                 skb->tail += hdr_len;
 709         }
 710         memset(page_info, 0, sizeof(*page_info));
 711
 712         if (pktsize <= rx_frag_size) {
 713                 BUG_ON(num_rcvd != 1);
 714                 goto done;
 715         }
 716
 717         /* More frags present for this completion */
 718         size = pktsize;
 719         for (i = 1, j = 0; i < num_rcvd; i++) {
 720                 size -= curr_frag_len;
 721                 index_inc(&rxq_idx, rxq->len);
 722                 page_info = get_rx_page_info(adapter, rxq_idx);
 723
 724                 curr_frag_len = min(size, rx_frag_size);
 725
 726                 /* Coalesce all frags from the same physical page in one slot */
 727                 if (page_info->page_offset == 0) {
 728                         /* Fresh page */
 729                         j++;
 730                         skb_shinfo(skb)->frags[j].page = page_info->page;
 731                         skb_shinfo(skb)->frags[j].page_offset =
 732                                                         page_info->page_offset;
 733                         skb_shinfo(skb)->frags[j].size = 0;
 734                         skb_shinfo(skb)->nr_frags++;
 735                 } else {
 736                         put_page(page_info->page);
 737                 }
 738
 739                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 740                 skb->len += curr_frag_len;
 741                 skb->data_len += curr_frag_len;
 742
 743                 memset(page_info, 0, sizeof(*page_info));
 744         }
 745         BUG_ON(j > MAX_SKB_FRAGS);
 746
 747 done:
 748         be_rx_stats_update(adapter, pktsize, num_rcvd);
 749         return;
 750 }
 751
 752 /* Process the RX completion indicated by rxcp when GRO is disabled */
 753 static void be_rx_compl_process(struct be_adapter *adapter,
 754                         struct be_eth_rx_compl *rxcp)
 755 {
 756         struct sk_buff *skb;
 757         u32 vlanf, vid;
 758         u8 vtm;
 759
 760         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 761         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 762
 763         /* vlanf could be wrongly set in some cards.
 764          * ignore if vtm is not set */
 765         if ((adapter->cap == 0x400) && !vtm)
 766                 vlanf = 0;
 767
 768         skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
 769         if (!skb) {
 770                 if (net_ratelimit())
 771                         dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
 772                 be_rx_compl_discard(adapter, rxcp);
 773                 return;
 774         }
 775
 776         skb_fill_rx_data(adapter, skb, rxcp);
 777
 778         if (do_pkt_csum(rxcp, adapter->rx_csum))
 779                 skb->ip_summed = CHECKSUM_NONE;
 780         else
 781                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 782
 783         skb->truesize = skb->len + sizeof(struct sk_buff);
 784         skb->protocol = eth_type_trans(skb, adapter->netdev);
 785         skb->dev = adapter->netdev;
 786
 787         if (vlanf) {
 788                 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
 789                         kfree_skb(skb);
 790                         return;
 791                 }
 792                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 793                 vid = be16_to_cpu(vid);
 794                 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
 795         } else {
 796                 netif_receive_skb(skb);
 797         }
 798
 799         return;
 800 }
 801
 802 /* Process the RX completion indicated by rxcp when GRO is enabled */
 803 static void be_rx_compl_process_gro(struct be_adapter *adapter,
 804                         struct be_eth_rx_compl *rxcp)
 805 {
 806         struct be_rx_page_info *page_info;
 807         struct sk_buff *skb = NULL;
 808         struct be_queue_info *rxq = &adapter->rx_obj.q;
 809         struct be_eq_obj *eq_obj =  &adapter->rx_eq;
 810         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
 811         u16 i, rxq_idx = 0, vid, j;
 812         u8 vtm;
 813
 814         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 815         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 816         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 817         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 818         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 819
 820         /* vlanf could be wrongly set in some cards.
 821          * ignore if vtm is not set */
 822         if ((adapter->cap == 0x400) && !vtm)
 823                 vlanf = 0;
 824
 825         skb = napi_get_frags(&eq_obj->napi);
 826         if (!skb) {
 827                 be_rx_compl_discard(adapter, rxcp);
 828                 return;
 829         }
 830
 831         remaining = pkt_size;
 832         for (i = 0, j = -1; i < num_rcvd; i++) {
 833                 page_info = get_rx_page_info(adapter, rxq_idx);
 834
 835                 curr_frag_len = min(remaining, rx_frag_size);
 836
 837                 /* Coalesce all frags from the same physical page in one slot */
 838                 if (i == 0 || page_info->page_offset == 0) {
 839                         /* First frag or Fresh page */
 840                         j++;
 841                         skb_shinfo(skb)->frags[j].page = page_info->page;
 842                         skb_shinfo(skb)->frags[j].page_offset =
 843                                                         page_info->page_offset;
 844                         skb_shinfo(skb)->frags[j].size = 0;
 845                 } else {
 846                         put_page(page_info->page);
 847                 }
 848                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 849
 850                 remaining -= curr_frag_len;
 851                 index_inc(&rxq_idx, rxq->len);
 852                 memset(page_info, 0, sizeof(*page_info));
 853         }
 854         BUG_ON(j > MAX_SKB_FRAGS);
 855
 856         skb_shinfo(skb)->nr_frags = j + 1;
 857         skb->len = pkt_size;
 858         skb->data_len = pkt_size;
 859         skb->truesize += pkt_size;
 860         skb->ip_summed = CHECKSUM_UNNECESSARY;
 861
 862         if (likely(!vlanf)) {
 863                 napi_gro_frags(&eq_obj->napi);
 864         } else {
 865                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 866                 vid = be16_to_cpu(vid);
 867
 868                 if (!adapter->vlan_grp || adapter->num_vlans == 0)
 869                         return;
 870
 871                 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
 872         }
 873
 874         be_rx_stats_update(adapter, pkt_size, num_rcvd);
 875         return;
 876 }
 877
 878 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
 879 {
 880         struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
 881
 882         if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
 883                 return NULL;
 884
 885         be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
 886
 887         queue_tail_inc(&adapter->rx_obj.cq);
 888         return rxcp;
 889 }
 890
 891 /* To reset the valid bit, we need to reset the whole word as
 892  * when walking the queue the valid entries are little-endian
 893  * and invalid entries are host endian
 894  */
 895 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
 896 {
 897         rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
 898 }
 899
 900 static inline struct page *be_alloc_pages(u32 size)
 901 {
 902         gfp_t alloc_flags = GFP_ATOMIC;
 903         u32 order = get_order(size);
 904         if (order > 0)
 905                 alloc_flags |= __GFP_COMP;
 906         return  alloc_pages(alloc_flags, order);
 907 }
 908
 909 /*
 910  * Allocate a page, split it to fragments of size rx_frag_size and post as
 911  * receive buffers to BE
 912  */
 913 static void be_post_rx_frags(struct be_adapter *adapter)
 914 {
 915         struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
 916         struct be_rx_page_info *page_info = NULL;
 917         struct be_queue_info *rxq = &adapter->rx_obj.q;
 918         struct page *pagep = NULL;
 919         struct be_eth_rx_d *rxd;
 920         u64 page_dmaaddr = 0, frag_dmaaddr;
 921         u32 posted, page_offset = 0;
 922
 923         page_info = &page_info_tbl[rxq->head];
 924         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
 925                 if (!pagep) {
 926                         pagep = be_alloc_pages(adapter->big_page_size);
 927                         if (unlikely(!pagep)) {
 928                                 drvr_stats(adapter)->be_ethrx_post_fail++;
 929                                 break;
 930                         }
 931                         page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
 932                                                 adapter->big_page_size,
 933                                                 PCI_DMA_FROMDEVICE);
 934                         page_info->page_offset = 0;
 935                 } else {
 936                         get_page(pagep);
 937                         page_info->page_offset = page_offset + rx_frag_size;
 938                 }
 939                 page_offset = page_info->page_offset;
 940                 page_info->page = pagep;
 941                 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
 942                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
 943
 944                 rxd = queue_head_node(rxq);
 945                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
 946                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
 947                 queue_head_inc(rxq);
 948
 949                 /* Any space left in the current big page for another frag? */
 950                 if ((page_offset + rx_frag_size + rx_frag_size) >
 951                                         adapter->big_page_size) {
 952                         pagep = NULL;
 953                         page_info->last_page_user = true;
 954                 }
 955                 page_info = &page_info_tbl[rxq->head];
 956         }
 957         if (pagep)
 958                 page_info->last_page_user = true;
 959
 960         if (posted) {
 961                 atomic_add(posted, &rxq->used);
 962                 be_rxq_notify(adapter, rxq->id, posted);
 963         } else if (atomic_read(&rxq->used) == 0) {
 964                 /* Let be_worker replenish when memory is available */
 965                 adapter->rx_post_starved = true;
 966         }
 967
 968         return;
 969 }
 970
 971 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
 972 {
 973         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
 974
 975         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
 976                 return NULL;
 977
 978         be_dws_le_to_cpu(txcp, sizeof(*txcp));
 979
 980         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
 981
 982         queue_tail_inc(tx_cq);
 983         return txcp;
 984 }
 985
 986 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
 987 {
 988         struct be_queue_info *txq = &adapter->tx_obj.q;
 989         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
 990         struct sk_buff *sent_skb;
 991         u16 cur_index, num_wrbs = 0;
 992
 993         cur_index = txq->tail;
 994         sent_skb = sent_skbs[cur_index];
 995         BUG_ON(!sent_skb);
 996         sent_skbs[cur_index] = NULL;
 997
 998         do {
 999                 cur_index = txq->tail;
1000                 num_wrbs++;
1001                 queue_tail_inc(txq);
1002         } while (cur_index != last_index);
1003
1004         atomic_sub(num_wrbs, &txq->used);
1005         skb_dma_unmap(&adapter->pdev->dev, sent_skb, DMA_TO_DEVICE);
1006         kfree_skb(sent_skb);
1007 }
1008
1009 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1010 {
1011         struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1012
1013         if (!eqe->evt)
1014                 return NULL;
1015
1016         eqe->evt = le32_to_cpu(eqe->evt);
1017         queue_tail_inc(&eq_obj->q);
1018         return eqe;
1019 }
1020
1021 static int event_handle(struct be_adapter *adapter,
1022                         struct be_eq_obj *eq_obj)
1023 {
1024         struct be_eq_entry *eqe;
1025         u16 num = 0;
1026
1027         while ((eqe = event_get(eq_obj)) != NULL) {
1028                 eqe->evt = 0;
1029                 num++;
1030         }
1031
1032         /* Deal with any spurious interrupts that come
1033          * without events
1034          */
1035         be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1036         if (num)
1037                 napi_schedule(&eq_obj->napi);
1038
1039         return num;
1040 }
1041
1042 /* Just read and notify events without processing them.
1043  * Used at the time of destroying event queues */
1044 static void be_eq_clean(struct be_adapter *adapter,
1045                         struct be_eq_obj *eq_obj)
1046 {
1047         struct be_eq_entry *eqe;
1048         u16 num = 0;
1049
1050         while ((eqe = event_get(eq_obj)) != NULL) {
1051                 eqe->evt = 0;
1052                 num++;
1053         }
1054
1055         if (num)
1056                 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1057 }
1058
1059 static void be_rx_q_clean(struct be_adapter *adapter)
1060 {
1061         struct be_rx_page_info *page_info;
1062         struct be_queue_info *rxq = &adapter->rx_obj.q;
1063         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1064         struct be_eth_rx_compl *rxcp;
1065         u16 tail;
1066
1067         /* First cleanup pending rx completions */
1068         while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1069                 be_rx_compl_discard(adapter, rxcp);
1070                 be_rx_compl_reset(rxcp);
1071                 be_cq_notify(adapter, rx_cq->id, true, 1);
1072         }
1073
1074         /* Then free posted rx buffer that were not used */
1075         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1076         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1077                 page_info = get_rx_page_info(adapter, tail);
1078                 put_page(page_info->page);
1079                 memset(page_info, 0, sizeof(*page_info));
1080         }
1081         BUG_ON(atomic_read(&rxq->used));
1082 }
1083
1084 static void be_tx_compl_clean(struct be_adapter *adapter)
1085 {
1086         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1087         struct be_queue_info *txq = &adapter->tx_obj.q;
1088         struct be_eth_tx_compl *txcp;
1089         u16 end_idx, cmpl = 0, timeo = 0;
1090
1091         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1092         do {
1093                 while ((txcp = be_tx_compl_get(tx_cq))) {
1094                         end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1095                                         wrb_index, txcp);
1096                         be_tx_compl_process(adapter, end_idx);
1097                         cmpl++;
1098                 }
1099                 if (cmpl) {
1100                         be_cq_notify(adapter, tx_cq->id, false, cmpl);
1101                         cmpl = 0;
1102                 }
1103
1104                 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1105                         break;
1106
1107                 mdelay(1);
1108         } while (true);
1109
1110         if (atomic_read(&txq->used))
1111                 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1112                         atomic_read(&txq->used));
1113 }
1114
1115 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1116 {
1117         struct be_queue_info *q;
1118
1119         q = &adapter->mcc_obj.q;
1120         if (q->created)
1121                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1122         be_queue_free(adapter, q);
1123
1124         q = &adapter->mcc_obj.cq;
1125         if (q->created)
1126                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1127         be_queue_free(adapter, q);
1128 }
1129
1130 /* Must be called only after TX qs are created as MCC shares TX EQ */
1131 static int be_mcc_queues_create(struct be_adapter *adapter)
1132 {
1133         struct be_queue_info *q, *cq;
1134
1135         /* Alloc MCC compl queue */
1136         cq = &adapter->mcc_obj.cq;
1137         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1138                         sizeof(struct be_mcc_compl)))
1139                 goto err;
1140
1141         /* Ask BE to create MCC compl queue; share TX's eq */
1142         if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1143                 goto mcc_cq_free;
1144
1145         /* Alloc MCC queue */
1146         q = &adapter->mcc_obj.q;
1147         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1148                 goto mcc_cq_destroy;
1149
1150         /* Ask BE to create MCC queue */
1151         if (be_cmd_mccq_create(adapter, q, cq))
1152                 goto mcc_q_free;
1153
1154         return 0;
1155
1156 mcc_q_free:
1157         be_queue_free(adapter, q);
1158 mcc_cq_destroy:
1159         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1160 mcc_cq_free:
1161         be_queue_free(adapter, cq);
1162 err:
1163         return -1;
1164 }
1165
1166 static void be_tx_queues_destroy(struct be_adapter *adapter)
1167 {
1168         struct be_queue_info *q;
1169
1170         q = &adapter->tx_obj.q;
1171         if (q->created)
1172                 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1173         be_queue_free(adapter, q);
1174
1175         q = &adapter->tx_obj.cq;
1176         if (q->created)
1177                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1178         be_queue_free(adapter, q);
1179
1180         /* Clear any residual events */
1181         be_eq_clean(adapter, &adapter->tx_eq);
1182
1183         q = &adapter->tx_eq.q;
1184         if (q->created)
1185                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1186         be_queue_free(adapter, q);
1187 }
1188
1189 static int be_tx_queues_create(struct be_adapter *adapter)
1190 {
1191         struct be_queue_info *eq, *q, *cq;
1192
1193         adapter->tx_eq.max_eqd = 0;
1194         adapter->tx_eq.min_eqd = 0;
1195         adapter->tx_eq.cur_eqd = 96;
1196         adapter->tx_eq.enable_aic = false;
1197         /* Alloc Tx Event queue */
1198         eq = &adapter->tx_eq.q;
1199         if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1200                 return -1;
1201
1202         /* Ask BE to create Tx Event queue */
1203         if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1204                 goto tx_eq_free;
1205         /* Alloc TX eth compl queue */
1206         cq = &adapter->tx_obj.cq;
1207         if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1208                         sizeof(struct be_eth_tx_compl)))
1209                 goto tx_eq_destroy;
1210
1211         /* Ask BE to create Tx eth compl queue */
1212         if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1213                 goto tx_cq_free;
1214
1215         /* Alloc TX eth queue */
1216         q = &adapter->tx_obj.q;
1217         if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1218                 goto tx_cq_destroy;
1219
1220         /* Ask BE to create Tx eth queue */
1221         if (be_cmd_txq_create(adapter, q, cq))
1222                 goto tx_q_free;
1223         return 0;
1224
1225 tx_q_free:
1226         be_queue_free(adapter, q);
1227 tx_cq_destroy:
1228         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1229 tx_cq_free:
1230         be_queue_free(adapter, cq);
1231 tx_eq_destroy:
1232         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1233 tx_eq_free:
1234         be_queue_free(adapter, eq);
1235         return -1;
1236 }
1237
1238 static void be_rx_queues_destroy(struct be_adapter *adapter)
1239 {
1240         struct be_queue_info *q;
1241
1242         q = &adapter->rx_obj.q;
1243         if (q->created) {
1244                 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1245                 be_rx_q_clean(adapter);
1246         }
1247         be_queue_free(adapter, q);
1248
1249         q = &adapter->rx_obj.cq;
1250         if (q->created)
1251                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1252         be_queue_free(adapter, q);
1253
1254         /* Clear any residual events */
1255         be_eq_clean(adapter, &adapter->rx_eq);
1256
1257         q = &adapter->rx_eq.q;
1258         if (q->created)
1259                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1260         be_queue_free(adapter, q);
1261 }
1262
1263 static int be_rx_queues_create(struct be_adapter *adapter)
1264 {
1265         struct be_queue_info *eq, *q, *cq;
1266         int rc;
1267
1268         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1269         adapter->rx_eq.max_eqd = BE_MAX_EQD;
1270         adapter->rx_eq.min_eqd = 0;
1271         adapter->rx_eq.cur_eqd = 0;
1272         adapter->rx_eq.enable_aic = true;
1273
1274         /* Alloc Rx Event queue */
1275         eq = &adapter->rx_eq.q;
1276         rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1277                                 sizeof(struct be_eq_entry));
1278         if (rc)
1279                 return rc;
1280
1281         /* Ask BE to create Rx Event queue */
1282         rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1283         if (rc)
1284                 goto rx_eq_free;
1285
1286         /* Alloc RX eth compl queue */
1287         cq = &adapter->rx_obj.cq;
1288         rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1289                         sizeof(struct be_eth_rx_compl));
1290         if (rc)
1291                 goto rx_eq_destroy;
1292
1293         /* Ask BE to create Rx eth compl queue */
1294         rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1295         if (rc)
1296                 goto rx_cq_free;
1297
1298         /* Alloc RX eth queue */
1299         q = &adapter->rx_obj.q;
1300         rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1301         if (rc)
1302                 goto rx_cq_destroy;
1303
1304         /* Ask BE to create Rx eth queue */
1305         rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1306                 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1307         if (rc)
1308                 goto rx_q_free;
1309
1310         return 0;
1311 rx_q_free:
1312         be_queue_free(adapter, q);
1313 rx_cq_destroy:
1314         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1315 rx_cq_free:
1316         be_queue_free(adapter, cq);
1317 rx_eq_destroy:
1318         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1319 rx_eq_free:
1320         be_queue_free(adapter, eq);
1321         return rc;
1322 }
1323
1324 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1325 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1326 {
1327         return eq_id - 8 * be_pci_func(adapter);
1328 }
1329
1330 static irqreturn_t be_intx(int irq, void *dev)
1331 {
1332         struct be_adapter *adapter = dev;
1333         int isr;
1334
1335         isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1336                         be_pci_func(adapter) * CEV_ISR_SIZE);
1337         if (!isr)
1338                 return IRQ_NONE;
1339
1340         event_handle(adapter, &adapter->tx_eq);
1341         event_handle(adapter, &adapter->rx_eq);
1342
1343         return IRQ_HANDLED;
1344 }
1345
1346 static irqreturn_t be_msix_rx(int irq, void *dev)
1347 {
1348         struct be_adapter *adapter = dev;
1349
1350         event_handle(adapter, &adapter->rx_eq);
1351
1352         return IRQ_HANDLED;
1353 }
1354
1355 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1356 {
1357         struct be_adapter *adapter = dev;
1358
1359         event_handle(adapter, &adapter->tx_eq);
1360
1361         return IRQ_HANDLED;
1362 }
1363
1364 static inline bool do_gro(struct be_adapter *adapter,
1365                         struct be_eth_rx_compl *rxcp)
1366 {
1367         int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1368         int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1369
1370         if (err)
1371                 drvr_stats(adapter)->be_rxcp_err++;
1372
1373         return (tcp_frame && !err) ? true : false;
1374 }
1375
1376 int be_poll_rx(struct napi_struct *napi, int budget)
1377 {
1378         struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1379         struct be_adapter *adapter =
1380                 container_of(rx_eq, struct be_adapter, rx_eq);
1381         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1382         struct be_eth_rx_compl *rxcp;
1383         u32 work_done;
1384
1385         adapter->stats.drvr_stats.be_rx_polls++;
1386         for (work_done = 0; work_done < budget; work_done++) {
1387                 rxcp = be_rx_compl_get(adapter);
1388                 if (!rxcp)
1389                         break;
1390
1391                 if (do_gro(adapter, rxcp))
1392                         be_rx_compl_process_gro(adapter, rxcp);
1393                 else
1394                         be_rx_compl_process(adapter, rxcp);
1395
1396                 be_rx_compl_reset(rxcp);
1397         }
1398
1399         /* Refill the queue */
1400         if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1401                 be_post_rx_frags(adapter);
1402
1403         /* All consumed */
1404         if (work_done < budget) {
1405                 napi_complete(napi);
1406                 be_cq_notify(adapter, rx_cq->id, true, work_done);
1407         } else {
1408                 /* More to be consumed; continue with interrupts disabled */
1409                 be_cq_notify(adapter, rx_cq->id, false, work_done);
1410         }
1411         return work_done;
1412 }
1413
1414 void be_process_tx(struct be_adapter *adapter)
1415 {
1416         struct be_queue_info *txq = &adapter->tx_obj.q;
1417         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1418         struct be_eth_tx_compl *txcp;
1419         u32 num_cmpl = 0;
1420         u16 end_idx;
1421
1422         while ((txcp = be_tx_compl_get(tx_cq))) {
1423                 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1424                                         wrb_index, txcp);
1425                 be_tx_compl_process(adapter, end_idx);
1426                 num_cmpl++;
1427         }
1428
1429         if (num_cmpl) {
1430                 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1431
1432                 /* As Tx wrbs have been freed up, wake up netdev queue if
1433                  * it was stopped due to lack of tx wrbs.
1434                  */
1435                 if (netif_queue_stopped(adapter->netdev) &&
1436                         atomic_read(&txq->used) < txq->len / 2) {
1437                         netif_wake_queue(adapter->netdev);
1438                 }
1439
1440                 drvr_stats(adapter)->be_tx_events++;
1441                 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1442         }
1443 }
1444
1445 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1446  * For TX/MCC we don't honour budget; consume everything
1447  */
1448 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1449 {
1450         struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1451         struct be_adapter *adapter =
1452                 container_of(tx_eq, struct be_adapter, tx_eq);
1453
1454         napi_complete(napi);
1455
1456         be_process_tx(adapter);
1457
1458         be_process_mcc(adapter);
1459
1460         return 1;
1461 }
1462
1463 static void be_worker(struct work_struct *work)
1464 {
1465         struct be_adapter *adapter =
1466                 container_of(work, struct be_adapter, work.work);
1467
1468         be_cmd_get_stats(adapter, &adapter->stats.cmd);
1469
1470         /* Set EQ delay */
1471         be_rx_eqd_update(adapter);
1472
1473         be_tx_rate_update(adapter);
1474         be_rx_rate_update(adapter);
1475
1476         if (adapter->rx_post_starved) {
1477                 adapter->rx_post_starved = false;
1478                 be_post_rx_frags(adapter);
1479         }
1480
1481         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1482 }
1483
1484 static void be_msix_disable(struct be_adapter *adapter)
1485 {
1486         if (adapter->msix_enabled) {
1487                 pci_disable_msix(adapter->pdev);
1488                 adapter->msix_enabled = false;
1489         }
1490 }
1491
1492 static void be_msix_enable(struct be_adapter *adapter)
1493 {
1494         int i, status;
1495
1496         for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1497                 adapter->msix_entries[i].entry = i;
1498
1499         status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1500                 BE_NUM_MSIX_VECTORS);
1501         if (status == 0)
1502                 adapter->msix_enabled = true;
1503         return;
1504 }
1505
1506 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1507 {
1508         return adapter->msix_entries[
1509                         be_evt_bit_get(adapter, eq_id)].vector;
1510 }
1511
1512 static int be_request_irq(struct be_adapter *adapter,
1513                 struct be_eq_obj *eq_obj,
1514                 void *handler, char *desc)
1515 {
1516         struct net_device *netdev = adapter->netdev;
1517         int vec;
1518
1519         sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1520         vec = be_msix_vec_get(adapter, eq_obj->q.id);
1521         return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1522 }
1523
1524 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1525 {
1526         int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1527         free_irq(vec, adapter);
1528 }
1529
1530 static int be_msix_register(struct be_adapter *adapter)
1531 {
1532         int status;
1533
1534         status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1535         if (status)
1536                 goto err;
1537
1538         status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1539         if (status)
1540                 goto free_tx_irq;
1541
1542         return 0;
1543
1544 free_tx_irq:
1545         be_free_irq(adapter, &adapter->tx_eq);
1546 err:
1547         dev_warn(&adapter->pdev->dev,
1548                 "MSIX Request IRQ failed - err %d\n", status);
1549         pci_disable_msix(adapter->pdev);
1550         adapter->msix_enabled = false;
1551         return status;
1552 }
1553
1554 static int be_irq_register(struct be_adapter *adapter)
1555 {
1556         struct net_device *netdev = adapter->netdev;
1557         int status;
1558
1559         if (adapter->msix_enabled) {
1560                 status = be_msix_register(adapter);
1561                 if (status == 0)
1562                         goto done;
1563         }
1564
1565         /* INTx */
1566         netdev->irq = adapter->pdev->irq;
1567         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1568                         adapter);
1569         if (status) {
1570                 dev_err(&adapter->pdev->dev,
1571                         "INTx request IRQ failed - err %d\n", status);
1572                 return status;
1573         }
1574 done:
1575         adapter->isr_registered = true;
1576         return 0;
1577 }
1578
1579 static void be_irq_unregister(struct be_adapter *adapter)
1580 {
1581         struct net_device *netdev = adapter->netdev;
1582
1583         if (!adapter->isr_registered)
1584                 return;
1585
1586         /* INTx */
1587         if (!adapter->msix_enabled) {
1588                 free_irq(netdev->irq, adapter);
1589                 goto done;
1590         }
1591
1592         /* MSIx */
1593         be_free_irq(adapter, &adapter->tx_eq);
1594         be_free_irq(adapter, &adapter->rx_eq);
1595 done:
1596         adapter->isr_registered = false;
1597         return;
1598 }
1599
1600 static int be_open(struct net_device *netdev)
1601 {
1602         struct be_adapter *adapter = netdev_priv(netdev);
1603         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1604         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1605         bool link_up;
1606         int status;
1607         u8 mac_speed;
1608         u16 link_speed;
1609
1610         /* First time posting */
1611         be_post_rx_frags(adapter);
1612
1613         napi_enable(&rx_eq->napi);
1614         napi_enable(&tx_eq->napi);
1615
1616         be_irq_register(adapter);
1617
1618         be_intr_set(adapter, true);
1619
1620         /* The evt queues are created in unarmed state; arm them */
1621         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1622         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1623
1624         /* Rx compl queue may be in unarmed state; rearm it */
1625         be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1626
1627         status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
1628                         &link_speed);
1629         if (status)
1630                 goto ret_sts;
1631         be_link_status_update(adapter, link_up);
1632
1633         status = be_vid_config(adapter);
1634         if (status)
1635                 goto ret_sts;
1636
1637         status = be_cmd_set_flow_control(adapter,
1638                                         adapter->tx_fc, adapter->rx_fc);
1639         if (status)
1640                 goto ret_sts;
1641
1642         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1643 ret_sts:
1644         return status;
1645 }
1646
1647 static int be_setup(struct be_adapter *adapter)
1648 {
1649         struct net_device *netdev = adapter->netdev;
1650         u32 cap_flags, en_flags;
1651         int status;
1652
1653         cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1654                         BE_IF_FLAGS_MCAST_PROMISCUOUS |
1655                         BE_IF_FLAGS_PROMISCUOUS |
1656                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1657         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1658                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1659
1660         status = be_cmd_if_create(adapter, cap_flags, en_flags,
1661                         netdev->dev_addr, false/* pmac_invalid */,
1662                         &adapter->if_handle, &adapter->pmac_id);
1663         if (status != 0)
1664                 goto do_none;
1665
1666         status = be_tx_queues_create(adapter);
1667         if (status != 0)
1668                 goto if_destroy;
1669
1670         status = be_rx_queues_create(adapter);
1671         if (status != 0)
1672                 goto tx_qs_destroy;
1673
1674         status = be_mcc_queues_create(adapter);
1675         if (status != 0)
1676                 goto rx_qs_destroy;
1677
1678         adapter->link_speed = -1;
1679
1680         return 0;
1681
1682 rx_qs_destroy:
1683         be_rx_queues_destroy(adapter);
1684 tx_qs_destroy:
1685         be_tx_queues_destroy(adapter);
1686 if_destroy:
1687         be_cmd_if_destroy(adapter, adapter->if_handle);
1688 do_none:
1689         return status;
1690 }
1691
1692 static int be_clear(struct be_adapter *adapter)
1693 {
1694         be_mcc_queues_destroy(adapter);
1695         be_rx_queues_destroy(adapter);
1696         be_tx_queues_destroy(adapter);
1697
1698         be_cmd_if_destroy(adapter, adapter->if_handle);
1699
1700         /* tell fw we're done with firing cmds */
1701         be_cmd_fw_clean(adapter);
1702         return 0;
1703 }
1704
1705 static int be_close(struct net_device *netdev)
1706 {
1707         struct be_adapter *adapter = netdev_priv(netdev);
1708         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1709         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1710         int vec;
1711
1712         cancel_delayed_work_sync(&adapter->work);
1713
1714         netif_stop_queue(netdev);
1715         netif_carrier_off(netdev);
1716         adapter->link_up = false;
1717
1718         be_intr_set(adapter, false);
1719
1720         if (adapter->msix_enabled) {
1721                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1722                 synchronize_irq(vec);
1723                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1724                 synchronize_irq(vec);
1725         } else {
1726                 synchronize_irq(netdev->irq);
1727         }
1728         be_irq_unregister(adapter);
1729
1730         napi_disable(&rx_eq->napi);
1731         napi_disable(&tx_eq->napi);
1732
1733         /* Wait for all pending tx completions to arrive so that
1734          * all tx skbs are freed.
1735          */
1736         be_tx_compl_clean(adapter);
1737
1738         return 0;
1739 }
1740
1741 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
1742 char flash_cookie[2][16] =      {"*** SE FLAS",
1743                                 "H DIRECTORY *** "};
1744
1745 static bool be_flash_redboot(struct be_adapter *adapter,
1746                         const u8 *p)
1747 {
1748         u32 crc_offset;
1749         u8 flashed_crc[4];
1750         int status;
1751         crc_offset = FLASH_REDBOOT_START + FLASH_REDBOOT_IMAGE_MAX_SIZE - 4
1752                         + sizeof(struct flash_file_hdr) - 32*1024;
1753         p += crc_offset;
1754         status = be_cmd_get_flash_crc(adapter, flashed_crc);
1755         if (status) {
1756                 dev_err(&adapter->pdev->dev,
1757                 "could not get crc from flash, not flashing redboot\n");
1758                 return false;
1759         }
1760
1761         /*update redboot only if crc does not match*/
1762         if (!memcmp(flashed_crc, p, 4))
1763                 return false;
1764         else
1765                 return true;
1766
1767 }
1768
1769 static int be_flash_image(struct be_adapter *adapter,
1770                         const struct firmware *fw,
1771                         struct be_dma_mem *flash_cmd, u32 flash_type)
1772 {
1773         int status;
1774         u32 flash_op, image_offset = 0, total_bytes, image_size = 0;
1775         int num_bytes;
1776         const u8 *p = fw->data;
1777         struct be_cmd_write_flashrom *req = flash_cmd->va;
1778
1779         switch (flash_type) {
1780         case FLASHROM_TYPE_ISCSI_ACTIVE:
1781                 image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START;
1782                 image_size = FLASH_IMAGE_MAX_SIZE;
1783                 break;
1784         case FLASHROM_TYPE_ISCSI_BACKUP:
1785                 image_offset = FLASH_iSCSI_BACKUP_IMAGE_START;
1786                 image_size = FLASH_IMAGE_MAX_SIZE;
1787                 break;
1788         case FLASHROM_TYPE_FCOE_FW_ACTIVE:
1789                 image_offset = FLASH_FCoE_PRIMARY_IMAGE_START;
1790                 image_size = FLASH_IMAGE_MAX_SIZE;
1791                 break;
1792         case FLASHROM_TYPE_FCOE_FW_BACKUP:
1793                 image_offset = FLASH_FCoE_BACKUP_IMAGE_START;
1794                 image_size = FLASH_IMAGE_MAX_SIZE;
1795                 break;
1796         case FLASHROM_TYPE_BIOS:
1797                 image_offset = FLASH_iSCSI_BIOS_START;
1798                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1799                 break;
1800         case FLASHROM_TYPE_FCOE_BIOS:
1801                 image_offset = FLASH_FCoE_BIOS_START;
1802                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1803                 break;
1804         case FLASHROM_TYPE_PXE_BIOS:
1805                 image_offset = FLASH_PXE_BIOS_START;
1806                 image_size = FLASH_BIOS_IMAGE_MAX_SIZE;
1807                 break;
1808         case FLASHROM_TYPE_REDBOOT:
1809                 if (!be_flash_redboot(adapter, fw->data))
1810                         return 0;
1811                 image_offset = FLASH_REDBOOT_ISM_START;
1812                 image_size = FLASH_REDBOOT_IMAGE_MAX_SIZE;
1813                 break;
1814         default:
1815                 return 0;
1816         }
1817
1818         p += sizeof(struct flash_file_hdr) + image_offset;
1819         if (p + image_size > fw->data + fw->size)
1820                 return -1;
1821
1822         total_bytes = image_size;
1823
1824         while (total_bytes) {
1825                 if (total_bytes > 32*1024)
1826                         num_bytes = 32*1024;
1827                 else
1828                         num_bytes = total_bytes;
1829                 total_bytes -= num_bytes;
1830
1831                 if (!total_bytes)
1832                         flash_op = FLASHROM_OPER_FLASH;
1833                 else
1834                         flash_op = FLASHROM_OPER_SAVE;
1835                 memcpy(req->params.data_buf, p, num_bytes);
1836                 p += num_bytes;
1837                 status = be_cmd_write_flashrom(adapter, flash_cmd,
1838                                 flash_type, flash_op, num_bytes);
1839                 if (status) {
1840                         dev_err(&adapter->pdev->dev,
1841                         "cmd to write to flash rom failed. type/op %d/%d\n",
1842                         flash_type, flash_op);
1843                         return -1;
1844                 }
1845                 yield();
1846         }
1847
1848         return 0;
1849 }
1850
1851 int be_load_fw(struct be_adapter *adapter, u8 *func)
1852 {
1853         char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1854         const struct firmware *fw;
1855         struct flash_file_hdr *fhdr;
1856         struct flash_section_info *fsec = NULL;
1857         struct be_dma_mem flash_cmd;
1858         int status;
1859         const u8 *p;
1860         bool entry_found = false;
1861         int flash_type;
1862         char fw_ver[FW_VER_LEN];
1863         char fw_cfg;
1864
1865         status = be_cmd_get_fw_ver(adapter, fw_ver);
1866         if (status)
1867                 return status;
1868
1869         fw_cfg = *(fw_ver + 2);
1870         if (fw_cfg == '0')
1871                 fw_cfg = '1';
1872         strcpy(fw_file, func);
1873
1874         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1875         if (status)
1876                 goto fw_exit;
1877
1878         p = fw->data;
1879         fhdr = (struct flash_file_hdr *) p;
1880         if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) {
1881                 dev_err(&adapter->pdev->dev,
1882                         "Firmware(%s) load error (signature did not match)\n",
1883                                 fw_file);
1884                 status = -1;
1885                 goto fw_exit;
1886         }
1887
1888         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1889
1890         p += sizeof(struct flash_file_hdr);
1891         while (p < (fw->data + fw->size)) {
1892                 fsec = (struct flash_section_info *)p;
1893                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) {
1894                         entry_found = true;
1895                         break;
1896                 }
1897                 p += 32;
1898         }
1899
1900         if (!entry_found) {
1901                 status = -1;
1902                 dev_err(&adapter->pdev->dev,
1903                         "Flash cookie not found in firmware image\n");
1904                 goto fw_exit;
1905         }
1906
1907         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1908         flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1909                                         &flash_cmd.dma);
1910         if (!flash_cmd.va) {
1911                 status = -ENOMEM;
1912                 dev_err(&adapter->pdev->dev,
1913                         "Memory allocation failure while flashing\n");
1914                 goto fw_exit;
1915         }
1916
1917         for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE;
1918                 flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) {
1919                 status = be_flash_image(adapter, fw, &flash_cmd,
1920                                 flash_type);
1921                 if (status)
1922                         break;
1923         }
1924
1925         pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1926                                 flash_cmd.dma);
1927         if (status) {
1928                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
1929                 goto fw_exit;
1930         }
1931
1932         dev_info(&adapter->pdev->dev, "Firmware flashed succesfully\n");
1933
1934 fw_exit:
1935         release_firmware(fw);
1936         return status;
1937 }
1938
1939 static struct net_device_ops be_netdev_ops = {
1940         .ndo_open               = be_open,
1941         .ndo_stop               = be_close,
1942         .ndo_start_xmit         = be_xmit,
1943         .ndo_get_stats          = be_get_stats,
1944         .ndo_set_rx_mode        = be_set_multicast_list,
1945         .ndo_set_mac_address    = be_mac_addr_set,
1946         .ndo_change_mtu         = be_change_mtu,
1947         .ndo_validate_addr      = eth_validate_addr,
1948         .ndo_vlan_rx_register   = be_vlan_register,
1949         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
1950         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
1951 };
1952
1953 static void be_netdev_init(struct net_device *netdev)
1954 {
1955         struct be_adapter *adapter = netdev_priv(netdev);
1956
1957         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1958                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
1959                 NETIF_F_GRO;
1960
1961         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
1962
1963         netdev->flags |= IFF_MULTICAST;
1964
1965         adapter->rx_csum = true;
1966
1967         /* Default settings for Rx and Tx flow control */
1968         adapter->rx_fc = true;
1969         adapter->tx_fc = true;
1970
1971         netif_set_gso_max_size(netdev, 65535);
1972
1973         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1974
1975         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1976
1977         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1978                 BE_NAPI_WEIGHT);
1979         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
1980                 BE_NAPI_WEIGHT);
1981
1982         netif_carrier_off(netdev);
1983         netif_stop_queue(netdev);
1984 }
1985
1986 static void be_unmap_pci_bars(struct be_adapter *adapter)
1987 {
1988         if (adapter->csr)
1989                 iounmap(adapter->csr);
1990         if (adapter->db)
1991                 iounmap(adapter->db);
1992         if (adapter->pcicfg)
1993                 iounmap(adapter->pcicfg);
1994 }
1995
1996 static int be_map_pci_bars(struct be_adapter *adapter)
1997 {
1998         u8 __iomem *addr;
1999
2000         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2001                         pci_resource_len(adapter->pdev, 2));
2002         if (addr == NULL)
2003                 return -ENOMEM;
2004         adapter->csr = addr;
2005
2006         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
2007                         128 * 1024);
2008         if (addr == NULL)
2009                 goto pci_map_err;
2010         adapter->db = addr;
2011
2012         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
2013                         pci_resource_len(adapter->pdev, 1));
2014         if (addr == NULL)
2015                 goto pci_map_err;
2016         adapter->pcicfg = addr;
2017
2018         return 0;
2019 pci_map_err:
2020         be_unmap_pci_bars(adapter);
2021         return -ENOMEM;
2022 }
2023
2024
2025 static void be_ctrl_cleanup(struct be_adapter *adapter)
2026 {
2027         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2028
2029         be_unmap_pci_bars(adapter);
2030
2031         if (mem->va)
2032                 pci_free_consistent(adapter->pdev, mem->size,
2033                         mem->va, mem->dma);
2034
2035         mem = &adapter->mc_cmd_mem;
2036         if (mem->va)
2037                 pci_free_consistent(adapter->pdev, mem->size,
2038                         mem->va, mem->dma);
2039 }
2040
2041 static int be_ctrl_init(struct be_adapter *adapter)
2042 {
2043         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2044         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2045         struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2046         int status;
2047
2048         status = be_map_pci_bars(adapter);
2049         if (status)
2050                 goto done;
2051
2052         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2053         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2054                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2055         if (!mbox_mem_alloc->va) {
2056                 status = -ENOMEM;
2057                 goto unmap_pci_bars;
2058         }
2059
2060         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2061         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2062         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2063         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2064
2065         mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2066         mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2067                         &mc_cmd_mem->dma);
2068         if (mc_cmd_mem->va == NULL) {
2069                 status = -ENOMEM;
2070                 goto free_mbox;
2071         }
2072         memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2073
2074         spin_lock_init(&adapter->mbox_lock);
2075         spin_lock_init(&adapter->mcc_lock);
2076         spin_lock_init(&adapter->mcc_cq_lock);
2077
2078         return 0;
2079
2080 free_mbox:
2081         pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2082                 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2083
2084 unmap_pci_bars:
2085         be_unmap_pci_bars(adapter);
2086
2087 done:
2088         return status;
2089 }
2090
2091 static void be_stats_cleanup(struct be_adapter *adapter)
2092 {
2093         struct be_stats_obj *stats = &adapter->stats;
2094         struct be_dma_mem *cmd = &stats->cmd;
2095
2096         if (cmd->va)
2097                 pci_free_consistent(adapter->pdev, cmd->size,
2098                         cmd->va, cmd->dma);
2099 }
2100
2101 static int be_stats_init(struct be_adapter *adapter)
2102 {
2103         struct be_stats_obj *stats = &adapter->stats;
2104         struct be_dma_mem *cmd = &stats->cmd;
2105
2106         cmd->size = sizeof(struct be_cmd_req_get_stats);
2107         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2108         if (cmd->va == NULL)
2109                 return -1;
2110         return 0;
2111 }
2112
2113 static void __devexit be_remove(struct pci_dev *pdev)
2114 {
2115         struct be_adapter *adapter = pci_get_drvdata(pdev);
2116
2117         if (!adapter)
2118                 return;
2119
2120         unregister_netdev(adapter->netdev);
2121
2122         be_clear(adapter);
2123
2124         be_stats_cleanup(adapter);
2125
2126         be_ctrl_cleanup(adapter);
2127
2128         be_msix_disable(adapter);
2129
2130         pci_set_drvdata(pdev, NULL);
2131         pci_release_regions(pdev);
2132         pci_disable_device(pdev);
2133
2134         free_netdev(adapter->netdev);
2135 }
2136
2137 static int be_get_config(struct be_adapter *adapter)
2138 {
2139         int status;
2140         u8 mac[ETH_ALEN];
2141
2142         status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2143         if (status)
2144                 return status;
2145
2146         status = be_cmd_query_fw_cfg(adapter,
2147                                 &adapter->port_num, &adapter->cap);
2148         if (status)
2149                 return status;
2150
2151         memset(mac, 0, ETH_ALEN);
2152         status = be_cmd_mac_addr_query(adapter, mac,
2153                         MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2154         if (status)
2155                 return status;
2156
2157         if (!is_valid_ether_addr(mac))
2158                 return -EADDRNOTAVAIL;
2159
2160         memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2161         memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2162
2163         return 0;
2164 }
2165
2166 static int __devinit be_probe(struct pci_dev *pdev,
2167                         const struct pci_device_id *pdev_id)
2168 {
2169         int status = 0;
2170         struct be_adapter *adapter;
2171         struct net_device *netdev;
2172
2173         status = pci_enable_device(pdev);
2174         if (status)
2175                 goto do_none;
2176
2177         status = pci_request_regions(pdev, DRV_NAME);
2178         if (status)
2179                 goto disable_dev;
2180         pci_set_master(pdev);
2181
2182         netdev = alloc_etherdev(sizeof(struct be_adapter));
2183         if (netdev == NULL) {
2184                 status = -ENOMEM;
2185                 goto rel_reg;
2186         }
2187         adapter = netdev_priv(netdev);
2188         adapter->pdev = pdev;
2189         pci_set_drvdata(pdev, adapter);
2190         adapter->netdev = netdev;
2191         be_netdev_init(netdev);
2192         SET_NETDEV_DEV(netdev, &pdev->dev);
2193
2194         be_msix_enable(adapter);
2195
2196         status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2197         if (!status) {
2198                 netdev->features |= NETIF_F_HIGHDMA;
2199         } else {
2200                 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2201                 if (status) {
2202                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2203                         goto free_netdev;
2204                 }
2205         }
2206
2207         status = be_ctrl_init(adapter);
2208         if (status)
2209                 goto free_netdev;
2210
2211         /* sync up with fw's ready state */
2212         status = be_cmd_POST(adapter);
2213         if (status)
2214                 goto ctrl_clean;
2215
2216         /* tell fw we're ready to fire cmds */
2217         status = be_cmd_fw_init(adapter);
2218         if (status)
2219                 goto ctrl_clean;
2220
2221         status = be_cmd_reset_function(adapter);
2222         if (status)
2223                 goto ctrl_clean;
2224
2225         status = be_stats_init(adapter);
2226         if (status)
2227                 goto ctrl_clean;
2228
2229         status = be_get_config(adapter);
2230         if (status)
2231                 goto stats_clean;
2232
2233         INIT_DELAYED_WORK(&adapter->work, be_worker);
2234
2235         status = be_setup(adapter);
2236         if (status)
2237                 goto stats_clean;
2238
2239         status = register_netdev(netdev);
2240         if (status != 0)
2241                 goto unsetup;
2242
2243         dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2244         return 0;
2245
2246 unsetup:
2247         be_clear(adapter);
2248 stats_clean:
2249         be_stats_cleanup(adapter);
2250 ctrl_clean:
2251         be_ctrl_cleanup(adapter);
2252 free_netdev:
2253         be_msix_disable(adapter);
2254         free_netdev(adapter->netdev);
2255         pci_set_drvdata(pdev, NULL);
2256 rel_reg:
2257         pci_release_regions(pdev);
2258 disable_dev:
2259         pci_disable_device(pdev);
2260 do_none:
2261         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2262         return status;
2263 }
2264
2265 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2266 {
2267         struct be_adapter *adapter = pci_get_drvdata(pdev);
2268         struct net_device *netdev =  adapter->netdev;
2269
2270         netif_device_detach(netdev);
2271         if (netif_running(netdev)) {
2272                 rtnl_lock();
2273                 be_close(netdev);
2274                 rtnl_unlock();
2275         }
2276         be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2277         be_clear(adapter);
2278
2279         pci_save_state(pdev);
2280         pci_disable_device(pdev);
2281         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2282         return 0;
2283 }
2284
2285 static int be_resume(struct pci_dev *pdev)
2286 {
2287         int status = 0;
2288         struct be_adapter *adapter = pci_get_drvdata(pdev);
2289         struct net_device *netdev =  adapter->netdev;
2290
2291         netif_device_detach(netdev);
2292
2293         status = pci_enable_device(pdev);
2294         if (status)
2295                 return status;
2296
2297         pci_set_power_state(pdev, 0);
2298         pci_restore_state(pdev);
2299
2300         /* tell fw we're ready to fire cmds */
2301         status = be_cmd_fw_init(adapter);
2302         if (status)
2303                 return status;
2304
2305         be_setup(adapter);
2306         if (netif_running(netdev)) {
2307                 rtnl_lock();
2308                 be_open(netdev);
2309                 rtnl_unlock();
2310         }
2311         netif_device_attach(netdev);
2312         return 0;
2313 }
2314
2315 static struct pci_driver be_driver = {
2316         .name = DRV_NAME,
2317         .id_table = be_dev_ids,
2318         .probe = be_probe,
2319         .remove = be_remove,
2320         .suspend = be_suspend,
2321         .resume = be_resume
2322 };
2323
2324 static int __init be_init_module(void)
2325 {
2326         if (rx_frag_size != 8192 && rx_frag_size != 4096
2327                 && rx_frag_size != 2048) {
2328                 printk(KERN_WARNING DRV_NAME
2329                         " : Module param rx_frag_size must be 2048/4096/8192."
2330                         " Using 2048\n");
2331                 rx_frag_size = 2048;
2332         }
2333
2334         return pci_register_driver(&be_driver);
2335 }
2336 module_init(be_init_module);
2337
2338 static void __exit be_exit_module(void)
2339 {
2340         pci_unregister_driver(&be_driver);
2341 }
2342 module_exit(be_exit_module);