drivers/net/benet/be_main.c

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