drivers/net/ethernet/emulex/benet/be_main.c

   1 /*
   2  * Copyright (C) 2005 - 2011 Emulex
   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@emulex.com
  12  *
  13  * Emulex
  14  * 3333 Susan Street
  15  * Costa Mesa, CA 92626
  16  */
  17
  18 #include <linux/prefetch.h>
  19 #include <linux/module.h>
  20 #include "be.h"
  21 #include "be_cmds.h"
  22 #include <asm/div64.h>
  23
  24 MODULE_VERSION(DRV_VER);
  25 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  26 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  27 MODULE_AUTHOR("ServerEngines Corporation");
  28 MODULE_LICENSE("GPL");
  29
  30 static unsigned int num_vfs;
  31 module_param(num_vfs, uint, S_IRUGO);
  32 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
  33
  34 static ushort rx_frag_size = 2048;
  35 module_param(rx_frag_size, ushort, S_IRUGO);
  36 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  37
  38 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  39         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  40         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  41         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  42         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  43         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
  44         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
  45         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
  46         { 0 }
  47 };
  48 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  49 /* UE Status Low CSR */
  50 static const char * const ue_status_low_desc[] = {
  51         "CEV",
  52         "CTX",
  53         "DBUF",
  54         "ERX",
  55         "Host",
  56         "MPU",
  57         "NDMA",
  58         "PTC ",
  59         "RDMA ",
  60         "RXF ",
  61         "RXIPS ",
  62         "RXULP0 ",
  63         "RXULP1 ",
  64         "RXULP2 ",
  65         "TIM ",
  66         "TPOST ",
  67         "TPRE ",
  68         "TXIPS ",
  69         "TXULP0 ",
  70         "TXULP1 ",
  71         "UC ",
  72         "WDMA ",
  73         "TXULP2 ",
  74         "HOST1 ",
  75         "P0_OB_LINK ",
  76         "P1_OB_LINK ",
  77         "HOST_GPIO ",
  78         "MBOX ",
  79         "AXGMAC0",
  80         "AXGMAC1",
  81         "JTAG",
  82         "MPU_INTPEND"
  83 };
  84 /* UE Status High CSR */
  85 static const char * const ue_status_hi_desc[] = {
  86         "LPCMEMHOST",
  87         "MGMT_MAC",
  88         "PCS0ONLINE",
  89         "MPU_IRAM",
  90         "PCS1ONLINE",
  91         "PCTL0",
  92         "PCTL1",
  93         "PMEM",
  94         "RR",
  95         "TXPB",
  96         "RXPP",
  97         "XAUI",
  98         "TXP",
  99         "ARM",
 100         "IPC",
 101         "HOST2",
 102         "HOST3",
 103         "HOST4",
 104         "HOST5",
 105         "HOST6",
 106         "HOST7",
 107         "HOST8",
 108         "HOST9",
 109         "NETC",
 110         "Unknown",
 111         "Unknown",
 112         "Unknown",
 113         "Unknown",
 114         "Unknown",
 115         "Unknown",
 116         "Unknown",
 117         "Unknown"
 118 };
 119
 120 /* Is BE in a multi-channel mode */
 121 static inline bool be_is_mc(struct be_adapter *adapter) {
 122         return (adapter->function_mode & FLEX10_MODE ||
 123                 adapter->function_mode & VNIC_MODE ||
 124                 adapter->function_mode & UMC_ENABLED);
 125 }
 126
 127 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
 128 {
 129         struct be_dma_mem *mem = &q->dma_mem;
 130         if (mem->va) {
 131                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 132                                   mem->dma);
 133                 mem->va = NULL;
 134         }
 135 }
 136
 137 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
 138                 u16 len, u16 entry_size)
 139 {
 140         struct be_dma_mem *mem = &q->dma_mem;
 141
 142         memset(q, 0, sizeof(*q));
 143         q->len = len;
 144         q->entry_size = entry_size;
 145         mem->size = len * entry_size;
 146         mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
 147                                      GFP_KERNEL);
 148         if (!mem->va)
 149                 return -ENOMEM;
 150         memset(mem->va, 0, mem->size);
 151         return 0;
 152 }
 153
 154 static void be_intr_set(struct be_adapter *adapter, bool enable)
 155 {
 156         u32 reg, enabled;
 157
 158         if (adapter->eeh_error)
 159                 return;
 160
 161         pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
 162                                 &reg);
 163         enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 164
 165         if (!enabled && enable)
 166                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 167         else if (enabled && !enable)
 168                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 169         else
 170                 return;
 171
 172         pci_write_config_dword(adapter->pdev,
 173                         PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
 174 }
 175
 176 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 177 {
 178         u32 val = 0;
 179         val |= qid & DB_RQ_RING_ID_MASK;
 180         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
 181
 182         wmb();
 183         iowrite32(val, adapter->db + DB_RQ_OFFSET);
 184 }
 185
 186 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 187 {
 188         u32 val = 0;
 189         val |= qid & DB_TXULP_RING_ID_MASK;
 190         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
 191
 192         wmb();
 193         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
 194 }
 195
 196 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
 197                 bool arm, bool clear_int, u16 num_popped)
 198 {
 199         u32 val = 0;
 200         val |= qid & DB_EQ_RING_ID_MASK;
 201         val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
 202                         DB_EQ_RING_ID_EXT_MASK_SHIFT);
 203
 204         if (adapter->eeh_error)
 205                 return;
 206
 207         if (arm)
 208                 val |= 1 << DB_EQ_REARM_SHIFT;
 209         if (clear_int)
 210                 val |= 1 << DB_EQ_CLR_SHIFT;
 211         val |= 1 << DB_EQ_EVNT_SHIFT;
 212         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 213         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 214 }
 215
 216 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 217 {
 218         u32 val = 0;
 219         val |= qid & DB_CQ_RING_ID_MASK;
 220         val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
 221                         DB_CQ_RING_ID_EXT_MASK_SHIFT);
 222
 223         if (adapter->eeh_error)
 224                 return;
 225
 226         if (arm)
 227                 val |= 1 << DB_CQ_REARM_SHIFT;
 228         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 229         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 230 }
 231
 232 static int be_mac_addr_set(struct net_device *netdev, void *p)
 233 {
 234         struct be_adapter *adapter = netdev_priv(netdev);
 235         struct sockaddr *addr = p;
 236         int status = 0;
 237         u8 current_mac[ETH_ALEN];
 238         u32 pmac_id = adapter->pmac_id[0];
 239
 240         if (!is_valid_ether_addr(addr->sa_data))
 241                 return -EADDRNOTAVAIL;
 242
 243         status = be_cmd_mac_addr_query(adapter, current_mac,
 244                                 MAC_ADDRESS_TYPE_NETWORK, false,
 245                                 adapter->if_handle, 0);
 246         if (status)
 247                 goto err;
 248
 249         if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
 250                 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 251                                 adapter->if_handle, &adapter->pmac_id[0], 0);
 252                 if (status)
 253                         goto err;
 254
 255                 be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
 256         }
 257         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 258         return 0;
 259 err:
 260         dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
 261         return status;
 262 }
 263
 264 static void populate_be2_stats(struct be_adapter *adapter)
 265 {
 266         struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
 267         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 268         struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
 269         struct be_port_rxf_stats_v0 *port_stats =
 270                                         &rxf_stats->port[adapter->port_num];
 271         struct be_drv_stats *drvs = &adapter->drv_stats;
 272
 273         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 274         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 275         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 276         drvs->rx_control_frames = port_stats->rx_control_frames;
 277         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 278         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 279         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 280         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 281         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 282         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 283         drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
 284         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 285         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 286         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 287         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 288         drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
 289         drvs->rx_dropped_header_too_small =
 290                 port_stats->rx_dropped_header_too_small;
 291         drvs->rx_address_mismatch_drops =
 292                                         port_stats->rx_address_mismatch_drops +
 293                                         port_stats->rx_vlan_mismatch_drops;
 294         drvs->rx_alignment_symbol_errors =
 295                 port_stats->rx_alignment_symbol_errors;
 296
 297         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 298         drvs->tx_controlframes = port_stats->tx_controlframes;
 299
 300         if (adapter->port_num)
 301                 drvs->jabber_events = rxf_stats->port1_jabber_events;
 302         else
 303                 drvs->jabber_events = rxf_stats->port0_jabber_events;
 304         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 305         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 306         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 307         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 308         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 309         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 310         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 311 }
 312
 313 static void populate_be3_stats(struct be_adapter *adapter)
 314 {
 315         struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
 316         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 317         struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
 318         struct be_port_rxf_stats_v1 *port_stats =
 319                                         &rxf_stats->port[adapter->port_num];
 320         struct be_drv_stats *drvs = &adapter->drv_stats;
 321
 322         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 323         drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
 324         drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
 325         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 326         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 327         drvs->rx_control_frames = port_stats->rx_control_frames;
 328         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 329         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 330         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 331         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 332         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 333         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 334         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 335         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 336         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 337         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 338         drvs->rx_dropped_header_too_small =
 339                 port_stats->rx_dropped_header_too_small;
 340         drvs->rx_input_fifo_overflow_drop =
 341                 port_stats->rx_input_fifo_overflow_drop;
 342         drvs->rx_address_mismatch_drops = port_stats->rx_address_mismatch_drops;
 343         drvs->rx_alignment_symbol_errors =
 344                 port_stats->rx_alignment_symbol_errors;
 345         drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
 346         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 347         drvs->tx_controlframes = port_stats->tx_controlframes;
 348         drvs->jabber_events = port_stats->jabber_events;
 349         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 350         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 351         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 352         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 353         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 354         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 355         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 356 }
 357
 358 static void populate_lancer_stats(struct be_adapter *adapter)
 359 {
 360
 361         struct be_drv_stats *drvs = &adapter->drv_stats;
 362         struct lancer_pport_stats *pport_stats =
 363                                         pport_stats_from_cmd(adapter);
 364
 365         be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
 366         drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
 367         drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
 368         drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
 369         drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
 370         drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
 371         drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
 372         drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
 373         drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
 374         drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
 375         drvs->rx_dropped_tcp_length =
 376                                 pport_stats->rx_dropped_invalid_tcp_length;
 377         drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
 378         drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
 379         drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
 380         drvs->rx_dropped_header_too_small =
 381                                 pport_stats->rx_dropped_header_too_small;
 382         drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 383         drvs->rx_address_mismatch_drops =
 384                                         pport_stats->rx_address_mismatch_drops +
 385                                         pport_stats->rx_vlan_mismatch_drops;
 386         drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
 387         drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 388         drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
 389         drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
 390         drvs->jabber_events = pport_stats->rx_jabbers;
 391         drvs->forwarded_packets = pport_stats->num_forwards_lo;
 392         drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
 393         drvs->rx_drops_too_many_frags =
 394                                 pport_stats->rx_drops_too_many_frags_lo;
 395 }
 396
 397 static void accumulate_16bit_val(u32 *acc, u16 val)
 398 {
 399 #define lo(x)                   (x & 0xFFFF)
 400 #define hi(x)                   (x & 0xFFFF0000)
 401         bool wrapped = val < lo(*acc);
 402         u32 newacc = hi(*acc) + val;
 403
 404         if (wrapped)
 405                 newacc += 65536;
 406         ACCESS_ONCE(*acc) = newacc;
 407 }
 408
 409 void be_parse_stats(struct be_adapter *adapter)
 410 {
 411         struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
 412         struct be_rx_obj *rxo;
 413         int i;
 414
 415         if (adapter->generation == BE_GEN3) {
 416                 if (lancer_chip(adapter))
 417                         populate_lancer_stats(adapter);
 418                  else
 419                         populate_be3_stats(adapter);
 420         } else {
 421                 populate_be2_stats(adapter);
 422         }
 423
 424         if (lancer_chip(adapter))
 425                 goto done;
 426
 427         /* as erx_v1 is longer than v0, ok to use v1 defn for v0 access */
 428         for_all_rx_queues(adapter, rxo, i) {
 429                 /* below erx HW counter can actually wrap around after
 430                  * 65535. Driver accumulates a 32-bit value
 431                  */
 432                 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
 433                                 (u16)erx->rx_drops_no_fragments[rxo->q.id]);
 434         }
 435 done:
 436         return;
 437 }
 438
 439 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
 440                                         struct rtnl_link_stats64 *stats)
 441 {
 442         struct be_adapter *adapter = netdev_priv(netdev);
 443         struct be_drv_stats *drvs = &adapter->drv_stats;
 444         struct be_rx_obj *rxo;
 445         struct be_tx_obj *txo;
 446         u64 pkts, bytes;
 447         unsigned int start;
 448         int i;
 449
 450         for_all_rx_queues(adapter, rxo, i) {
 451                 const struct be_rx_stats *rx_stats = rx_stats(rxo);
 452                 do {
 453                         start = u64_stats_fetch_begin_bh(&rx_stats->sync);
 454                         pkts = rx_stats(rxo)->rx_pkts;
 455                         bytes = rx_stats(rxo)->rx_bytes;
 456                 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
 457                 stats->rx_packets += pkts;
 458                 stats->rx_bytes += bytes;
 459                 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
 460                 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
 461                                         rx_stats(rxo)->rx_drops_no_frags;
 462         }
 463
 464         for_all_tx_queues(adapter, txo, i) {
 465                 const struct be_tx_stats *tx_stats = tx_stats(txo);
 466                 do {
 467                         start = u64_stats_fetch_begin_bh(&tx_stats->sync);
 468                         pkts = tx_stats(txo)->tx_pkts;
 469                         bytes = tx_stats(txo)->tx_bytes;
 470                 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
 471                 stats->tx_packets += pkts;
 472                 stats->tx_bytes += bytes;
 473         }
 474
 475         /* bad pkts received */
 476         stats->rx_errors = drvs->rx_crc_errors +
 477                 drvs->rx_alignment_symbol_errors +
 478                 drvs->rx_in_range_errors +
 479                 drvs->rx_out_range_errors +
 480                 drvs->rx_frame_too_long +
 481                 drvs->rx_dropped_too_small +
 482                 drvs->rx_dropped_too_short +
 483                 drvs->rx_dropped_header_too_small +
 484                 drvs->rx_dropped_tcp_length +
 485                 drvs->rx_dropped_runt;
 486
 487         /* detailed rx errors */
 488         stats->rx_length_errors = drvs->rx_in_range_errors +
 489                 drvs->rx_out_range_errors +
 490                 drvs->rx_frame_too_long;
 491
 492         stats->rx_crc_errors = drvs->rx_crc_errors;
 493
 494         /* frame alignment errors */
 495         stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
 496
 497         /* receiver fifo overrun */
 498         /* drops_no_pbuf is no per i/f, it's per BE card */
 499         stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
 500                                 drvs->rx_input_fifo_overflow_drop +
 501                                 drvs->rx_drops_no_pbuf;
 502         return stats;
 503 }
 504
 505 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
 506 {
 507         struct net_device *netdev = adapter->netdev;
 508
 509         if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
 510                 netif_carrier_off(netdev);
 511                 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
 512         }
 513
 514         if ((link_status & LINK_STATUS_MASK) == LINK_UP)
 515                 netif_carrier_on(netdev);
 516         else
 517                 netif_carrier_off(netdev);
 518 }
 519
 520 static void be_tx_stats_update(struct be_tx_obj *txo,
 521                         u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
 522 {
 523         struct be_tx_stats *stats = tx_stats(txo);
 524
 525         u64_stats_update_begin(&stats->sync);
 526         stats->tx_reqs++;
 527         stats->tx_wrbs += wrb_cnt;
 528         stats->tx_bytes += copied;
 529         stats->tx_pkts += (gso_segs ? gso_segs : 1);
 530         if (stopped)
 531                 stats->tx_stops++;
 532         u64_stats_update_end(&stats->sync);
 533 }
 534
 535 /* Determine number of WRB entries needed to xmit data in an skb */
 536 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
 537                                                                 bool *dummy)
 538 {
 539         int cnt = (skb->len > skb->data_len);
 540
 541         cnt += skb_shinfo(skb)->nr_frags;
 542
 543         /* to account for hdr wrb */
 544         cnt++;
 545         if (lancer_chip(adapter) || !(cnt & 1)) {
 546                 *dummy = false;
 547         } else {
 548                 /* add a dummy to make it an even num */
 549                 cnt++;
 550                 *dummy = true;
 551         }
 552         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 553         return cnt;
 554 }
 555
 556 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 557 {
 558         wrb->frag_pa_hi = upper_32_bits(addr);
 559         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 560         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 561         wrb->rsvd0 = 0;
 562 }
 563
 564 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
 565                                         struct sk_buff *skb)
 566 {
 567         u8 vlan_prio;
 568         u16 vlan_tag;
 569
 570         vlan_tag = vlan_tx_tag_get(skb);
 571         vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
 572         /* If vlan priority provided by OS is NOT in available bmap */
 573         if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
 574                 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
 575                                 adapter->recommended_prio;
 576
 577         return vlan_tag;
 578 }
 579
 580 static int be_vlan_tag_chk(struct be_adapter *adapter, struct sk_buff *skb)
 581 {
 582         return vlan_tx_tag_present(skb) || adapter->pvid;
 583 }
 584
 585 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
 586                 struct sk_buff *skb, u32 wrb_cnt, u32 len)
 587 {
 588         u16 vlan_tag;
 589
 590         memset(hdr, 0, sizeof(*hdr));
 591
 592         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 593
 594         if (skb_is_gso(skb)) {
 595                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 596                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 597                         hdr, skb_shinfo(skb)->gso_size);
 598                 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
 599                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
 600                 if (lancer_chip(adapter) && adapter->sli_family  ==
 601                                                         LANCER_A0_SLI_FAMILY) {
 602                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
 603                         if (is_tcp_pkt(skb))
 604                                 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
 605                                                                 tcpcs, hdr, 1);
 606                         else if (is_udp_pkt(skb))
 607                                 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
 608                                                                 udpcs, hdr, 1);
 609                 }
 610         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 611                 if (is_tcp_pkt(skb))
 612                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 613                 else if (is_udp_pkt(skb))
 614                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 615         }
 616
 617         if (vlan_tx_tag_present(skb)) {
 618                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 619                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 620                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
 621         }
 622
 623         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 624         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 625         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 626         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 627 }
 628
 629 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
 630                 bool unmap_single)
 631 {
 632         dma_addr_t dma;
 633
 634         be_dws_le_to_cpu(wrb, sizeof(*wrb));
 635
 636         dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
 637         if (wrb->frag_len) {
 638                 if (unmap_single)
 639                         dma_unmap_single(dev, dma, wrb->frag_len,
 640                                          DMA_TO_DEVICE);
 641                 else
 642                         dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
 643         }
 644 }
 645
 646 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
 647                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 648 {
 649         dma_addr_t busaddr;
 650         int i, copied = 0;
 651         struct device *dev = &adapter->pdev->dev;
 652         struct sk_buff *first_skb = skb;
 653         struct be_eth_wrb *wrb;
 654         struct be_eth_hdr_wrb *hdr;
 655         bool map_single = false;
 656         u16 map_head;
 657
 658         hdr = queue_head_node(txq);
 659         queue_head_inc(txq);
 660         map_head = txq->head;
 661
 662         if (skb->len > skb->data_len) {
 663                 int len = skb_headlen(skb);
 664                 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
 665                 if (dma_mapping_error(dev, busaddr))
 666                         goto dma_err;
 667                 map_single = true;
 668                 wrb = queue_head_node(txq);
 669                 wrb_fill(wrb, busaddr, len);
 670                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 671                 queue_head_inc(txq);
 672                 copied += len;
 673         }
 674
 675         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 676                 const struct skb_frag_struct *frag =
 677                         &skb_shinfo(skb)->frags[i];
 678                 busaddr = skb_frag_dma_map(dev, frag, 0,
 679                                            skb_frag_size(frag), DMA_TO_DEVICE);
 680                 if (dma_mapping_error(dev, busaddr))
 681                         goto dma_err;
 682                 wrb = queue_head_node(txq);
 683                 wrb_fill(wrb, busaddr, skb_frag_size(frag));
 684                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 685                 queue_head_inc(txq);
 686                 copied += skb_frag_size(frag);
 687         }
 688
 689         if (dummy_wrb) {
 690                 wrb = queue_head_node(txq);
 691                 wrb_fill(wrb, 0, 0);
 692                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 693                 queue_head_inc(txq);
 694         }
 695
 696         wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
 697         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 698
 699         return copied;
 700 dma_err:
 701         txq->head = map_head;
 702         while (copied) {
 703                 wrb = queue_head_node(txq);
 704                 unmap_tx_frag(dev, wrb, map_single);
 705                 map_single = false;
 706                 copied -= wrb->frag_len;
 707                 queue_head_inc(txq);
 708         }
 709         return 0;
 710 }
 711
 712 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
 713                                              struct sk_buff *skb)
 714 {
 715         u16 vlan_tag = 0;
 716
 717         skb = skb_share_check(skb, GFP_ATOMIC);
 718         if (unlikely(!skb))
 719                 return skb;
 720
 721         if (vlan_tx_tag_present(skb)) {
 722                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 723                 __vlan_put_tag(skb, vlan_tag);
 724                 skb->vlan_tci = 0;
 725         }
 726
 727         return skb;
 728 }
 729
 730 static netdev_tx_t be_xmit(struct sk_buff *skb,
 731                         struct net_device *netdev)
 732 {
 733         struct be_adapter *adapter = netdev_priv(netdev);
 734         struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
 735         struct be_queue_info *txq = &txo->q;
 736         struct iphdr *ip = NULL;
 737         u32 wrb_cnt = 0, copied = 0;
 738         u32 start = txq->head, eth_hdr_len;
 739         bool dummy_wrb, stopped = false;
 740
 741         eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
 742                 VLAN_ETH_HLEN : ETH_HLEN;
 743
 744         /* HW has a bug which considers padding bytes as legal
 745          * and modifies the IPv4 hdr's 'tot_len' field
 746          */
 747         if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
 748                         is_ipv4_pkt(skb)) {
 749                 ip = (struct iphdr *)ip_hdr(skb);
 750                 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
 751         }
 752
 753         /* HW has a bug wherein it will calculate CSUM for VLAN
 754          * pkts even though it is disabled.
 755          * Manually insert VLAN in pkt.
 756          */
 757         if (skb->ip_summed != CHECKSUM_PARTIAL &&
 758                         be_vlan_tag_chk(adapter, skb)) {
 759                 skb = be_insert_vlan_in_pkt(adapter, skb);
 760                 if (unlikely(!skb))
 761                         goto tx_drop;
 762         }
 763
 764         wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
 765
 766         copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
 767         if (copied) {
 768                 int gso_segs = skb_shinfo(skb)->gso_segs;
 769
 770                 /* record the sent skb in the sent_skb table */
 771                 BUG_ON(txo->sent_skb_list[start]);
 772                 txo->sent_skb_list[start] = skb;
 773
 774                 /* Ensure txq has space for the next skb; Else stop the queue
 775                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 776                  * tx compls of the current transmit which'll wake up the queue
 777                  */
 778                 atomic_add(wrb_cnt, &txq->used);
 779                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 780                                                                 txq->len) {
 781                         netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
 782                         stopped = true;
 783                 }
 784
 785                 be_txq_notify(adapter, txq->id, wrb_cnt);
 786
 787                 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
 788         } else {
 789                 txq->head = start;
 790                 dev_kfree_skb_any(skb);
 791         }
 792 tx_drop:
 793         return NETDEV_TX_OK;
 794 }
 795
 796 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 797 {
 798         struct be_adapter *adapter = netdev_priv(netdev);
 799         if (new_mtu < BE_MIN_MTU ||
 800                         new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
 801                                         (ETH_HLEN + ETH_FCS_LEN))) {
 802                 dev_info(&adapter->pdev->dev,
 803                         "MTU must be between %d and %d bytes\n",
 804                         BE_MIN_MTU,
 805                         (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
 806                 return -EINVAL;
 807         }
 808         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 809                         netdev->mtu, new_mtu);
 810         netdev->mtu = new_mtu;
 811         return 0;
 812 }
 813
 814 /*
 815  * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
 816  * If the user configures more, place BE in vlan promiscuous mode.
 817  */
 818 static int be_vid_config(struct be_adapter *adapter)
 819 {
 820         u16 vids[BE_NUM_VLANS_SUPPORTED];
 821         u16 num = 0, i;
 822         int status = 0;
 823
 824         /* No need to further configure vids if in promiscuous mode */
 825         if (adapter->promiscuous)
 826                 return 0;
 827
 828         if (adapter->vlans_added > adapter->max_vlans)
 829                 goto set_vlan_promisc;
 830
 831         /* Construct VLAN Table to give to HW */
 832         for (i = 0; i < VLAN_N_VID; i++)
 833                 if (adapter->vlan_tag[i])
 834                         vids[num++] = cpu_to_le16(i);
 835
 836         status = be_cmd_vlan_config(adapter, adapter->if_handle,
 837                                     vids, num, 1, 0);
 838
 839         /* Set to VLAN promisc mode as setting VLAN filter failed */
 840         if (status) {
 841                 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
 842                 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
 843                 goto set_vlan_promisc;
 844         }
 845
 846         return status;
 847
 848 set_vlan_promisc:
 849         status = be_cmd_vlan_config(adapter, adapter->if_handle,
 850                                     NULL, 0, 1, 1);
 851         return status;
 852 }
 853
 854 static int be_vlan_add_vid(struct net_device *netdev, u16 vid)
 855 {
 856         struct be_adapter *adapter = netdev_priv(netdev);
 857         int status = 0;
 858
 859         if (!be_physfn(adapter)) {
 860                 status = -EINVAL;
 861                 goto ret;
 862         }
 863
 864         adapter->vlan_tag[vid] = 1;
 865         if (adapter->vlans_added <= (adapter->max_vlans + 1))
 866                 status = be_vid_config(adapter);
 867
 868         if (!status)
 869                 adapter->vlans_added++;
 870         else
 871                 adapter->vlan_tag[vid] = 0;
 872 ret:
 873         return status;
 874 }
 875
 876 static int be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 877 {
 878         struct be_adapter *adapter = netdev_priv(netdev);
 879         int status = 0;
 880
 881         if (!be_physfn(adapter)) {
 882                 status = -EINVAL;
 883                 goto ret;
 884         }
 885
 886         adapter->vlan_tag[vid] = 0;
 887         if (adapter->vlans_added <= adapter->max_vlans)
 888                 status = be_vid_config(adapter);
 889
 890         if (!status)
 891                 adapter->vlans_added--;
 892         else
 893                 adapter->vlan_tag[vid] = 1;
 894 ret:
 895         return status;
 896 }
 897
 898 static void be_set_rx_mode(struct net_device *netdev)
 899 {
 900         struct be_adapter *adapter = netdev_priv(netdev);
 901         int status;
 902
 903         if (netdev->flags & IFF_PROMISC) {
 904                 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
 905                 adapter->promiscuous = true;
 906                 goto done;
 907         }
 908
 909         /* BE was previously in promiscuous mode; disable it */
 910         if (adapter->promiscuous) {
 911                 adapter->promiscuous = false;
 912                 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
 913
 914                 if (adapter->vlans_added)
 915                         be_vid_config(adapter);
 916         }
 917
 918         /* Enable multicast promisc if num configured exceeds what we support */
 919         if (netdev->flags & IFF_ALLMULTI ||
 920                         netdev_mc_count(netdev) > BE_MAX_MC) {
 921                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
 922                 goto done;
 923         }
 924
 925         if (netdev_uc_count(netdev) != adapter->uc_macs) {
 926                 struct netdev_hw_addr *ha;
 927                 int i = 1; /* First slot is claimed by the Primary MAC */
 928
 929                 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
 930                         be_cmd_pmac_del(adapter, adapter->if_handle,
 931                                         adapter->pmac_id[i], 0);
 932                 }
 933
 934                 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
 935                         be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
 936                         adapter->promiscuous = true;
 937                         goto done;
 938                 }
 939
 940                 netdev_for_each_uc_addr(ha, adapter->netdev) {
 941                         adapter->uc_macs++; /* First slot is for Primary MAC */
 942                         be_cmd_pmac_add(adapter, (u8 *)ha->addr,
 943                                         adapter->if_handle,
 944                                         &adapter->pmac_id[adapter->uc_macs], 0);
 945                 }
 946         }
 947
 948         status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
 949
 950         /* Set to MCAST promisc mode if setting MULTICAST address fails */
 951         if (status) {
 952                 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
 953                 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
 954                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
 955         }
 956 done:
 957         return;
 958 }
 959
 960 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
 961 {
 962         struct be_adapter *adapter = netdev_priv(netdev);
 963         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
 964         int status;
 965
 966         if (!sriov_enabled(adapter))
 967                 return -EPERM;
 968
 969         if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
 970                 return -EINVAL;
 971
 972         if (lancer_chip(adapter)) {
 973                 status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
 974         } else {
 975                 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
 976                                          vf_cfg->pmac_id, vf + 1);
 977
 978                 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
 979                                          &vf_cfg->pmac_id, vf + 1);
 980         }
 981
 982         if (status)
 983                 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
 984                                 mac, vf);
 985         else
 986                 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
 987
 988         return status;
 989 }
 990
 991 static int be_get_vf_config(struct net_device *netdev, int vf,
 992                         struct ifla_vf_info *vi)
 993 {
 994         struct be_adapter *adapter = netdev_priv(netdev);
 995         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
 996
 997         if (!sriov_enabled(adapter))
 998                 return -EPERM;
 999
1000         if (vf >= adapter->num_vfs)
1001                 return -EINVAL;
1002
1003         vi->vf = vf;
1004         vi->tx_rate = vf_cfg->tx_rate;
1005         vi->vlan = vf_cfg->vlan_tag;
1006         vi->qos = 0;
1007         memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1008
1009         return 0;
1010 }
1011
1012 static int be_set_vf_vlan(struct net_device *netdev,
1013                         int vf, u16 vlan, u8 qos)
1014 {
1015         struct be_adapter *adapter = netdev_priv(netdev);
1016         int status = 0;
1017
1018         if (!sriov_enabled(adapter))
1019                 return -EPERM;
1020
1021         if (vf >= adapter->num_vfs || vlan > 4095)
1022                 return -EINVAL;
1023
1024         if (vlan) {
1025                 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1026                         /* If this is new value, program it. Else skip. */
1027                         adapter->vf_cfg[vf].vlan_tag = vlan;
1028
1029                         status = be_cmd_set_hsw_config(adapter, vlan,
1030                                 vf + 1, adapter->vf_cfg[vf].if_handle);
1031                 }
1032         } else {
1033                 /* Reset Transparent Vlan Tagging. */
1034                 adapter->vf_cfg[vf].vlan_tag = 0;
1035                 vlan = adapter->vf_cfg[vf].def_vid;
1036                 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1037                         adapter->vf_cfg[vf].if_handle);
1038         }
1039
1040
1041         if (status)
1042                 dev_info(&adapter->pdev->dev,
1043                                 "VLAN %d config on VF %d failed\n", vlan, vf);
1044         return status;
1045 }
1046
1047 static int be_set_vf_tx_rate(struct net_device *netdev,
1048                         int vf, int rate)
1049 {
1050         struct be_adapter *adapter = netdev_priv(netdev);
1051         int status = 0;
1052
1053         if (!sriov_enabled(adapter))
1054                 return -EPERM;
1055
1056         if (vf >= adapter->num_vfs)
1057                 return -EINVAL;
1058
1059         if (rate < 100 || rate > 10000) {
1060                 dev_err(&adapter->pdev->dev,
1061                         "tx rate must be between 100 and 10000 Mbps\n");
1062                 return -EINVAL;
1063         }
1064
1065         status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1066
1067         if (status)
1068                 dev_err(&adapter->pdev->dev,
1069                                 "tx rate %d on VF %d failed\n", rate, vf);
1070         else
1071                 adapter->vf_cfg[vf].tx_rate = rate;
1072         return status;
1073 }
1074
1075 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1076 {
1077         struct pci_dev *dev, *pdev = adapter->pdev;
1078         int vfs = 0, assigned_vfs = 0, pos, vf_fn;
1079         u16 offset, stride;
1080
1081         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1082         if (!pos)
1083                 return 0;
1084         pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1085         pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1086
1087         dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1088         while (dev) {
1089                 vf_fn = (pdev->devfn + offset + stride * vfs) & 0xFFFF;
1090                 if (dev->is_virtfn && dev->devfn == vf_fn &&
1091                         dev->bus->number == pdev->bus->number) {
1092                         vfs++;
1093                         if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1094                                 assigned_vfs++;
1095                 }
1096                 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1097         }
1098         return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1099 }
1100
1101 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1102 {
1103         struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1104         ulong now = jiffies;
1105         ulong delta = now - stats->rx_jiffies;
1106         u64 pkts;
1107         unsigned int start, eqd;
1108
1109         if (!eqo->enable_aic) {
1110                 eqd = eqo->eqd;
1111                 goto modify_eqd;
1112         }
1113
1114         if (eqo->idx >= adapter->num_rx_qs)
1115                 return;
1116
1117         stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1118
1119         /* Wrapped around */
1120         if (time_before(now, stats->rx_jiffies)) {
1121                 stats->rx_jiffies = now;
1122                 return;
1123         }
1124
1125         /* Update once a second */
1126         if (delta < HZ)
1127                 return;
1128
1129         do {
1130                 start = u64_stats_fetch_begin_bh(&stats->sync);
1131                 pkts = stats->rx_pkts;
1132         } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1133
1134         stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1135         stats->rx_pkts_prev = pkts;
1136         stats->rx_jiffies = now;
1137         eqd = (stats->rx_pps / 110000) << 3;
1138         eqd = min(eqd, eqo->max_eqd);
1139         eqd = max(eqd, eqo->min_eqd);
1140         if (eqd < 10)
1141                 eqd = 0;
1142
1143 modify_eqd:
1144         if (eqd != eqo->cur_eqd) {
1145                 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1146                 eqo->cur_eqd = eqd;
1147         }
1148 }
1149
1150 static void be_rx_stats_update(struct be_rx_obj *rxo,
1151                 struct be_rx_compl_info *rxcp)
1152 {
1153         struct be_rx_stats *stats = rx_stats(rxo);
1154
1155         u64_stats_update_begin(&stats->sync);
1156         stats->rx_compl++;
1157         stats->rx_bytes += rxcp->pkt_size;
1158         stats->rx_pkts++;
1159         if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1160                 stats->rx_mcast_pkts++;
1161         if (rxcp->err)
1162                 stats->rx_compl_err++;
1163         u64_stats_update_end(&stats->sync);
1164 }
1165
1166 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1167 {
1168         /* L4 checksum is not reliable for non TCP/UDP packets.
1169          * Also ignore ipcksm for ipv6 pkts */
1170         return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1171                                 (rxcp->ip_csum || rxcp->ipv6);
1172 }
1173
1174 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1175                                                 u16 frag_idx)
1176 {
1177         struct be_adapter *adapter = rxo->adapter;
1178         struct be_rx_page_info *rx_page_info;
1179         struct be_queue_info *rxq = &rxo->q;
1180
1181         rx_page_info = &rxo->page_info_tbl[frag_idx];
1182         BUG_ON(!rx_page_info->page);
1183
1184         if (rx_page_info->last_page_user) {
1185                 dma_unmap_page(&adapter->pdev->dev,
1186                                dma_unmap_addr(rx_page_info, bus),
1187                                adapter->big_page_size, DMA_FROM_DEVICE);
1188                 rx_page_info->last_page_user = false;
1189         }
1190
1191         atomic_dec(&rxq->used);
1192         return rx_page_info;
1193 }
1194
1195 /* Throwaway the data in the Rx completion */
1196 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1197                                 struct be_rx_compl_info *rxcp)
1198 {
1199         struct be_queue_info *rxq = &rxo->q;
1200         struct be_rx_page_info *page_info;
1201         u16 i, num_rcvd = rxcp->num_rcvd;
1202
1203         for (i = 0; i < num_rcvd; i++) {
1204                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1205                 put_page(page_info->page);
1206                 memset(page_info, 0, sizeof(*page_info));
1207                 index_inc(&rxcp->rxq_idx, rxq->len);
1208         }
1209 }
1210
1211 /*
1212  * skb_fill_rx_data forms a complete skb for an ether frame
1213  * indicated by rxcp.
1214  */
1215 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1216                              struct be_rx_compl_info *rxcp)
1217 {
1218         struct be_queue_info *rxq = &rxo->q;
1219         struct be_rx_page_info *page_info;
1220         u16 i, j;
1221         u16 hdr_len, curr_frag_len, remaining;
1222         u8 *start;
1223
1224         page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1225         start = page_address(page_info->page) + page_info->page_offset;
1226         prefetch(start);
1227
1228         /* Copy data in the first descriptor of this completion */
1229         curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1230
1231         /* Copy the header portion into skb_data */
1232         hdr_len = min(BE_HDR_LEN, curr_frag_len);
1233         memcpy(skb->data, start, hdr_len);
1234         skb->len = curr_frag_len;
1235         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1236                 /* Complete packet has now been moved to data */
1237                 put_page(page_info->page);
1238                 skb->data_len = 0;
1239                 skb->tail += curr_frag_len;
1240         } else {
1241                 skb_shinfo(skb)->nr_frags = 1;
1242                 skb_frag_set_page(skb, 0, page_info->page);
1243                 skb_shinfo(skb)->frags[0].page_offset =
1244                                         page_info->page_offset + hdr_len;
1245                 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1246                 skb->data_len = curr_frag_len - hdr_len;
1247                 skb->truesize += rx_frag_size;
1248                 skb->tail += hdr_len;
1249         }
1250         page_info->page = NULL;
1251
1252         if (rxcp->pkt_size <= rx_frag_size) {
1253                 BUG_ON(rxcp->num_rcvd != 1);
1254                 return;
1255         }
1256
1257         /* More frags present for this completion */
1258         index_inc(&rxcp->rxq_idx, rxq->len);
1259         remaining = rxcp->pkt_size - curr_frag_len;
1260         for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1261                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1262                 curr_frag_len = min(remaining, rx_frag_size);
1263
1264                 /* Coalesce all frags from the same physical page in one slot */
1265                 if (page_info->page_offset == 0) {
1266                         /* Fresh page */
1267                         j++;
1268                         skb_frag_set_page(skb, j, page_info->page);
1269                         skb_shinfo(skb)->frags[j].page_offset =
1270                                                         page_info->page_offset;
1271                         skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1272                         skb_shinfo(skb)->nr_frags++;
1273                 } else {
1274                         put_page(page_info->page);
1275                 }
1276
1277                 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1278                 skb->len += curr_frag_len;
1279                 skb->data_len += curr_frag_len;
1280                 skb->truesize += rx_frag_size;
1281                 remaining -= curr_frag_len;
1282                 index_inc(&rxcp->rxq_idx, rxq->len);
1283                 page_info->page = NULL;
1284         }
1285         BUG_ON(j > MAX_SKB_FRAGS);
1286 }
1287
1288 /* Process the RX completion indicated by rxcp when GRO is disabled */
1289 static void be_rx_compl_process(struct be_rx_obj *rxo,
1290                                 struct be_rx_compl_info *rxcp)
1291 {
1292         struct be_adapter *adapter = rxo->adapter;
1293         struct net_device *netdev = adapter->netdev;
1294         struct sk_buff *skb;
1295
1296         skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1297         if (unlikely(!skb)) {
1298                 rx_stats(rxo)->rx_drops_no_skbs++;
1299                 be_rx_compl_discard(rxo, rxcp);
1300                 return;
1301         }
1302
1303         skb_fill_rx_data(rxo, skb, rxcp);
1304
1305         if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1306                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1307         else
1308                 skb_checksum_none_assert(skb);
1309
1310         skb->protocol = eth_type_trans(skb, netdev);
1311         skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1312         if (netdev->features & NETIF_F_RXHASH)
1313                 skb->rxhash = rxcp->rss_hash;
1314
1315
1316         if (rxcp->vlanf)
1317                 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1318
1319         netif_receive_skb(skb);
1320 }
1321
1322 /* Process the RX completion indicated by rxcp when GRO is enabled */
1323 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1324                              struct be_rx_compl_info *rxcp)
1325 {
1326         struct be_adapter *adapter = rxo->adapter;
1327         struct be_rx_page_info *page_info;
1328         struct sk_buff *skb = NULL;
1329         struct be_queue_info *rxq = &rxo->q;
1330         u16 remaining, curr_frag_len;
1331         u16 i, j;
1332
1333         skb = napi_get_frags(napi);
1334         if (!skb) {
1335                 be_rx_compl_discard(rxo, rxcp);
1336                 return;
1337         }
1338
1339         remaining = rxcp->pkt_size;
1340         for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1341                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1342
1343                 curr_frag_len = min(remaining, rx_frag_size);
1344
1345                 /* Coalesce all frags from the same physical page in one slot */
1346                 if (i == 0 || page_info->page_offset == 0) {
1347                         /* First frag or Fresh page */
1348                         j++;
1349                         skb_frag_set_page(skb, j, page_info->page);
1350                         skb_shinfo(skb)->frags[j].page_offset =
1351                                                         page_info->page_offset;
1352                         skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1353                 } else {
1354                         put_page(page_info->page);
1355                 }
1356                 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1357                 skb->truesize += rx_frag_size;
1358                 remaining -= curr_frag_len;
1359                 index_inc(&rxcp->rxq_idx, rxq->len);
1360                 memset(page_info, 0, sizeof(*page_info));
1361         }
1362         BUG_ON(j > MAX_SKB_FRAGS);
1363
1364         skb_shinfo(skb)->nr_frags = j + 1;
1365         skb->len = rxcp->pkt_size;
1366         skb->data_len = rxcp->pkt_size;
1367         skb->ip_summed = CHECKSUM_UNNECESSARY;
1368         skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1369         if (adapter->netdev->features & NETIF_F_RXHASH)
1370                 skb->rxhash = rxcp->rss_hash;
1371
1372         if (rxcp->vlanf)
1373                 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1374
1375         napi_gro_frags(napi);
1376 }
1377
1378 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1379                                  struct be_rx_compl_info *rxcp)
1380 {
1381         rxcp->pkt_size =
1382                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1383         rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1384         rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1385         rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1386         rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1387         rxcp->ip_csum =
1388                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1389         rxcp->l4_csum =
1390                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1391         rxcp->ipv6 =
1392                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1393         rxcp->rxq_idx =
1394                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1395         rxcp->num_rcvd =
1396                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1397         rxcp->pkt_type =
1398                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1399         rxcp->rss_hash =
1400                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp);
1401         if (rxcp->vlanf) {
1402                 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1403                                           compl);
1404                 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1405                                                compl);
1406         }
1407         rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1408 }
1409
1410 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1411                                  struct be_rx_compl_info *rxcp)
1412 {
1413         rxcp->pkt_size =
1414                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1415         rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1416         rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1417         rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1418         rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1419         rxcp->ip_csum =
1420                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1421         rxcp->l4_csum =
1422                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1423         rxcp->ipv6 =
1424                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1425         rxcp->rxq_idx =
1426                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1427         rxcp->num_rcvd =
1428                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1429         rxcp->pkt_type =
1430                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1431         rxcp->rss_hash =
1432                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp);
1433         if (rxcp->vlanf) {
1434                 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1435                                           compl);
1436                 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1437                                                compl);
1438         }
1439         rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1440 }
1441
1442 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1443 {
1444         struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1445         struct be_rx_compl_info *rxcp = &rxo->rxcp;
1446         struct be_adapter *adapter = rxo->adapter;
1447
1448         /* For checking the valid bit it is Ok to use either definition as the
1449          * valid bit is at the same position in both v0 and v1 Rx compl */
1450         if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1451                 return NULL;
1452
1453         rmb();
1454         be_dws_le_to_cpu(compl, sizeof(*compl));
1455
1456         if (adapter->be3_native)
1457                 be_parse_rx_compl_v1(compl, rxcp);
1458         else
1459                 be_parse_rx_compl_v0(compl, rxcp);
1460
1461         if (rxcp->vlanf) {
1462                 /* vlanf could be wrongly set in some cards.
1463                  * ignore if vtm is not set */
1464                 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1465                         rxcp->vlanf = 0;
1466
1467                 if (!lancer_chip(adapter))
1468                         rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1469
1470                 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1471                     !adapter->vlan_tag[rxcp->vlan_tag])
1472                         rxcp->vlanf = 0;
1473         }
1474
1475         /* As the compl has been parsed, reset it; we wont touch it again */
1476         compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1477
1478         queue_tail_inc(&rxo->cq);
1479         return rxcp;
1480 }
1481
1482 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1483 {
1484         u32 order = get_order(size);
1485
1486         if (order > 0)
1487                 gfp |= __GFP_COMP;
1488         return  alloc_pages(gfp, order);
1489 }
1490
1491 /*
1492  * Allocate a page, split it to fragments of size rx_frag_size and post as
1493  * receive buffers to BE
1494  */
1495 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1496 {
1497         struct be_adapter *adapter = rxo->adapter;
1498         struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1499         struct be_queue_info *rxq = &rxo->q;
1500         struct page *pagep = NULL;
1501         struct be_eth_rx_d *rxd;
1502         u64 page_dmaaddr = 0, frag_dmaaddr;
1503         u32 posted, page_offset = 0;
1504
1505         page_info = &rxo->page_info_tbl[rxq->head];
1506         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1507                 if (!pagep) {
1508                         pagep = be_alloc_pages(adapter->big_page_size, gfp);
1509                         if (unlikely(!pagep)) {
1510                                 rx_stats(rxo)->rx_post_fail++;
1511                                 break;
1512                         }
1513                         page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1514                                                     0, adapter->big_page_size,
1515                                                     DMA_FROM_DEVICE);
1516                         page_info->page_offset = 0;
1517                 } else {
1518                         get_page(pagep);
1519                         page_info->page_offset = page_offset + rx_frag_size;
1520                 }
1521                 page_offset = page_info->page_offset;
1522                 page_info->page = pagep;
1523                 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1524                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1525
1526                 rxd = queue_head_node(rxq);
1527                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1528                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1529
1530                 /* Any space left in the current big page for another frag? */
1531                 if ((page_offset + rx_frag_size + rx_frag_size) >
1532                                         adapter->big_page_size) {
1533                         pagep = NULL;
1534                         page_info->last_page_user = true;
1535                 }
1536
1537                 prev_page_info = page_info;
1538                 queue_head_inc(rxq);
1539                 page_info = &rxo->page_info_tbl[rxq->head];
1540         }
1541         if (pagep)
1542                 prev_page_info->last_page_user = true;
1543
1544         if (posted) {
1545                 atomic_add(posted, &rxq->used);
1546                 be_rxq_notify(adapter, rxq->id, posted);
1547         } else if (atomic_read(&rxq->used) == 0) {
1548                 /* Let be_worker replenish when memory is available */
1549                 rxo->rx_post_starved = true;
1550         }
1551 }
1552
1553 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1554 {
1555         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1556
1557         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1558                 return NULL;
1559
1560         rmb();
1561         be_dws_le_to_cpu(txcp, sizeof(*txcp));
1562
1563         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1564
1565         queue_tail_inc(tx_cq);
1566         return txcp;
1567 }
1568
1569 static u16 be_tx_compl_process(struct be_adapter *adapter,
1570                 struct be_tx_obj *txo, u16 last_index)
1571 {
1572         struct be_queue_info *txq = &txo->q;
1573         struct be_eth_wrb *wrb;
1574         struct sk_buff **sent_skbs = txo->sent_skb_list;
1575         struct sk_buff *sent_skb;
1576         u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1577         bool unmap_skb_hdr = true;
1578
1579         sent_skb = sent_skbs[txq->tail];
1580         BUG_ON(!sent_skb);
1581         sent_skbs[txq->tail] = NULL;
1582
1583         /* skip header wrb */
1584         queue_tail_inc(txq);
1585
1586         do {
1587                 cur_index = txq->tail;
1588                 wrb = queue_tail_node(txq);
1589                 unmap_tx_frag(&adapter->pdev->dev, wrb,
1590                               (unmap_skb_hdr && skb_headlen(sent_skb)));
1591                 unmap_skb_hdr = false;
1592
1593                 num_wrbs++;
1594                 queue_tail_inc(txq);
1595         } while (cur_index != last_index);
1596
1597         kfree_skb(sent_skb);
1598         return num_wrbs;
1599 }
1600
1601 /* Return the number of events in the event queue */
1602 static inline int events_get(struct be_eq_obj *eqo)
1603 {
1604         struct be_eq_entry *eqe;
1605         int num = 0;
1606
1607         do {
1608                 eqe = queue_tail_node(&eqo->q);
1609                 if (eqe->evt == 0)
1610                         break;
1611
1612                 rmb();
1613                 eqe->evt = 0;
1614                 num++;
1615                 queue_tail_inc(&eqo->q);
1616         } while (true);
1617
1618         return num;
1619 }
1620
1621 static int event_handle(struct be_eq_obj *eqo)
1622 {
1623         bool rearm = false;
1624         int num = events_get(eqo);
1625
1626         /* Deal with any spurious interrupts that come without events */
1627         if (!num)
1628                 rearm = true;
1629
1630         if (num || msix_enabled(eqo->adapter))
1631                 be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num);
1632
1633         if (num)
1634                 napi_schedule(&eqo->napi);
1635
1636         return num;
1637 }
1638
1639 /* Leaves the EQ is disarmed state */
1640 static void be_eq_clean(struct be_eq_obj *eqo)
1641 {
1642         int num = events_get(eqo);
1643
1644         be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1645 }
1646
1647 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1648 {
1649         struct be_rx_page_info *page_info;
1650         struct be_queue_info *rxq = &rxo->q;
1651         struct be_queue_info *rx_cq = &rxo->cq;
1652         struct be_rx_compl_info *rxcp;
1653         u16 tail;
1654
1655         /* First cleanup pending rx completions */
1656         while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1657                 be_rx_compl_discard(rxo, rxcp);
1658                 be_cq_notify(rxo->adapter, rx_cq->id, false, 1);
1659         }
1660
1661         /* Then free posted rx buffer that were not used */
1662         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1663         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1664                 page_info = get_rx_page_info(rxo, tail);
1665                 put_page(page_info->page);
1666                 memset(page_info, 0, sizeof(*page_info));
1667         }
1668         BUG_ON(atomic_read(&rxq->used));
1669         rxq->tail = rxq->head = 0;
1670 }
1671
1672 static void be_tx_compl_clean(struct be_adapter *adapter)
1673 {
1674         struct be_tx_obj *txo;
1675         struct be_queue_info *txq;
1676         struct be_eth_tx_compl *txcp;
1677         u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1678         struct sk_buff *sent_skb;
1679         bool dummy_wrb;
1680         int i, pending_txqs;
1681
1682         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1683         do {
1684                 pending_txqs = adapter->num_tx_qs;
1685
1686                 for_all_tx_queues(adapter, txo, i) {
1687                         txq = &txo->q;
1688                         while ((txcp = be_tx_compl_get(&txo->cq))) {
1689                                 end_idx =
1690                                         AMAP_GET_BITS(struct amap_eth_tx_compl,
1691                                                       wrb_index, txcp);
1692                                 num_wrbs += be_tx_compl_process(adapter, txo,
1693                                                                 end_idx);
1694                                 cmpl++;
1695                         }
1696                         if (cmpl) {
1697                                 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1698                                 atomic_sub(num_wrbs, &txq->used);
1699                                 cmpl = 0;
1700                                 num_wrbs = 0;
1701                         }
1702                         if (atomic_read(&txq->used) == 0)
1703                                 pending_txqs--;
1704                 }
1705
1706                 if (pending_txqs == 0 || ++timeo > 200)
1707                         break;
1708
1709                 mdelay(1);
1710         } while (true);
1711
1712         for_all_tx_queues(adapter, txo, i) {
1713                 txq = &txo->q;
1714                 if (atomic_read(&txq->used))
1715                         dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1716                                 atomic_read(&txq->used));
1717
1718                 /* free posted tx for which compls will never arrive */
1719                 while (atomic_read(&txq->used)) {
1720                         sent_skb = txo->sent_skb_list[txq->tail];
1721                         end_idx = txq->tail;
1722                         num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1723                                                    &dummy_wrb);
1724                         index_adv(&end_idx, num_wrbs - 1, txq->len);
1725                         num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1726                         atomic_sub(num_wrbs, &txq->used);
1727                 }
1728         }
1729 }
1730
1731 static void be_evt_queues_destroy(struct be_adapter *adapter)
1732 {
1733         struct be_eq_obj *eqo;
1734         int i;
1735
1736         for_all_evt_queues(adapter, eqo, i) {
1737                 if (eqo->q.created) {
1738                         be_eq_clean(eqo);
1739                         be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1740                 }
1741                 be_queue_free(adapter, &eqo->q);
1742         }
1743 }
1744
1745 static int be_evt_queues_create(struct be_adapter *adapter)
1746 {
1747         struct be_queue_info *eq;
1748         struct be_eq_obj *eqo;
1749         int i, rc;
1750
1751         adapter->num_evt_qs = num_irqs(adapter);
1752
1753         for_all_evt_queues(adapter, eqo, i) {
1754                 eqo->adapter = adapter;
1755                 eqo->tx_budget = BE_TX_BUDGET;
1756                 eqo->idx = i;
1757                 eqo->max_eqd = BE_MAX_EQD;
1758                 eqo->enable_aic = true;
1759
1760                 eq = &eqo->q;
1761                 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1762                                         sizeof(struct be_eq_entry));
1763                 if (rc)
1764                         return rc;
1765
1766                 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1767                 if (rc)
1768                         return rc;
1769         }
1770         return 0;
1771 }
1772
1773 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1774 {
1775         struct be_queue_info *q;
1776
1777         q = &adapter->mcc_obj.q;
1778         if (q->created)
1779                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1780         be_queue_free(adapter, q);
1781
1782         q = &adapter->mcc_obj.cq;
1783         if (q->created)
1784                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1785         be_queue_free(adapter, q);
1786 }
1787
1788 /* Must be called only after TX qs are created as MCC shares TX EQ */
1789 static int be_mcc_queues_create(struct be_adapter *adapter)
1790 {
1791         struct be_queue_info *q, *cq;
1792
1793         cq = &adapter->mcc_obj.cq;
1794         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1795                         sizeof(struct be_mcc_compl)))
1796                 goto err;
1797
1798         /* Use the default EQ for MCC completions */
1799         if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1800                 goto mcc_cq_free;
1801
1802         q = &adapter->mcc_obj.q;
1803         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1804                 goto mcc_cq_destroy;
1805
1806         if (be_cmd_mccq_create(adapter, q, cq))
1807                 goto mcc_q_free;
1808
1809         return 0;
1810
1811 mcc_q_free:
1812         be_queue_free(adapter, q);
1813 mcc_cq_destroy:
1814         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1815 mcc_cq_free:
1816         be_queue_free(adapter, cq);
1817 err:
1818         return -1;
1819 }
1820
1821 static void be_tx_queues_destroy(struct be_adapter *adapter)
1822 {
1823         struct be_queue_info *q;
1824         struct be_tx_obj *txo;
1825         u8 i;
1826
1827         for_all_tx_queues(adapter, txo, i) {
1828                 q = &txo->q;
1829                 if (q->created)
1830                         be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1831                 be_queue_free(adapter, q);
1832
1833                 q = &txo->cq;
1834                 if (q->created)
1835                         be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1836                 be_queue_free(adapter, q);
1837         }
1838 }
1839
1840 static int be_num_txqs_want(struct be_adapter *adapter)
1841 {
1842         if (sriov_want(adapter) || be_is_mc(adapter) ||
1843             lancer_chip(adapter) || !be_physfn(adapter) ||
1844             adapter->generation == BE_GEN2)
1845                 return 1;
1846         else
1847                 return MAX_TX_QS;
1848 }
1849
1850 static int be_tx_cqs_create(struct be_adapter *adapter)
1851 {
1852         struct be_queue_info *cq, *eq;
1853         int status;
1854         struct be_tx_obj *txo;
1855         u8 i;
1856
1857         adapter->num_tx_qs = be_num_txqs_want(adapter);
1858         if (adapter->num_tx_qs != MAX_TX_QS) {
1859                 rtnl_lock();
1860                 netif_set_real_num_tx_queues(adapter->netdev,
1861                         adapter->num_tx_qs);
1862                 rtnl_unlock();
1863         }
1864
1865         for_all_tx_queues(adapter, txo, i) {
1866                 cq = &txo->cq;
1867                 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
1868                                         sizeof(struct be_eth_tx_compl));
1869                 if (status)
1870                         return status;
1871
1872                 /* If num_evt_qs is less than num_tx_qs, then more than
1873                  * one txq share an eq
1874                  */
1875                 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1876                 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
1877                 if (status)
1878                         return status;
1879         }
1880         return 0;
1881 }
1882
1883 static int be_tx_qs_create(struct be_adapter *adapter)
1884 {
1885         struct be_tx_obj *txo;
1886         int i, status;
1887
1888         for_all_tx_queues(adapter, txo, i) {
1889                 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
1890                                         sizeof(struct be_eth_wrb));
1891                 if (status)
1892                         return status;
1893
1894                 status = be_cmd_txq_create(adapter, &txo->q, &txo->cq);
1895                 if (status)
1896                         return status;
1897         }
1898
1899         return 0;
1900 }
1901
1902 static void be_rx_cqs_destroy(struct be_adapter *adapter)
1903 {
1904         struct be_queue_info *q;
1905         struct be_rx_obj *rxo;
1906         int i;
1907
1908         for_all_rx_queues(adapter, rxo, i) {
1909                 q = &rxo->cq;
1910                 if (q->created)
1911                         be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1912                 be_queue_free(adapter, q);
1913         }
1914 }
1915
1916 static int be_rx_cqs_create(struct be_adapter *adapter)
1917 {
1918         struct be_queue_info *eq, *cq;
1919         struct be_rx_obj *rxo;
1920         int rc, i;
1921
1922         /* We'll create as many RSS rings as there are irqs.
1923          * But when there's only one irq there's no use creating RSS rings
1924          */
1925         adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
1926                                 num_irqs(adapter) + 1 : 1;
1927         if (adapter->num_rx_qs != MAX_RX_QS) {
1928                 rtnl_lock();
1929                 netif_set_real_num_rx_queues(adapter->netdev,
1930                                              adapter->num_rx_qs);
1931                 rtnl_unlock();
1932         }
1933
1934         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1935         for_all_rx_queues(adapter, rxo, i) {
1936                 rxo->adapter = adapter;
1937                 cq = &rxo->cq;
1938                 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1939                                 sizeof(struct be_eth_rx_compl));
1940                 if (rc)
1941                         return rc;
1942
1943                 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1944                 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
1945                 if (rc)
1946                         return rc;
1947         }
1948
1949         if (adapter->num_rx_qs != MAX_RX_QS)
1950                 dev_info(&adapter->pdev->dev,
1951                         "Created only %d receive queues", adapter->num_rx_qs);
1952
1953         return 0;
1954 }
1955
1956 static irqreturn_t be_intx(int irq, void *dev)
1957 {
1958         struct be_adapter *adapter = dev;
1959         int num_evts;
1960
1961         /* With INTx only one EQ is used */
1962         num_evts = event_handle(&adapter->eq_obj[0]);
1963         if (num_evts)
1964                 return IRQ_HANDLED;
1965         else
1966                 return IRQ_NONE;
1967 }
1968
1969 static irqreturn_t be_msix(int irq, void *dev)
1970 {
1971         struct be_eq_obj *eqo = dev;
1972
1973         event_handle(eqo);
1974         return IRQ_HANDLED;
1975 }
1976
1977 static inline bool do_gro(struct be_rx_compl_info *rxcp)
1978 {
1979         return (rxcp->tcpf && !rxcp->err) ? true : false;
1980 }
1981
1982 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
1983                         int budget)
1984 {
1985         struct be_adapter *adapter = rxo->adapter;
1986         struct be_queue_info *rx_cq = &rxo->cq;
1987         struct be_rx_compl_info *rxcp;
1988         u32 work_done;
1989
1990         for (work_done = 0; work_done < budget; work_done++) {
1991                 rxcp = be_rx_compl_get(rxo);
1992                 if (!rxcp)
1993                         break;
1994
1995                 /* Is it a flush compl that has no data */
1996                 if (unlikely(rxcp->num_rcvd == 0))
1997                         goto loop_continue;
1998
1999                 /* Discard compl with partial DMA Lancer B0 */
2000                 if (unlikely(!rxcp->pkt_size)) {
2001                         be_rx_compl_discard(rxo, rxcp);
2002                         goto loop_continue;
2003                 }
2004
2005                 /* On BE drop pkts that arrive due to imperfect filtering in
2006                  * promiscuous mode on some skews
2007                  */
2008                 if (unlikely(rxcp->port != adapter->port_num &&
2009                                 !lancer_chip(adapter))) {
2010                         be_rx_compl_discard(rxo, rxcp);
2011                         goto loop_continue;
2012                 }
2013
2014                 if (do_gro(rxcp))
2015                         be_rx_compl_process_gro(rxo, napi, rxcp);
2016                 else
2017                         be_rx_compl_process(rxo, rxcp);
2018 loop_continue:
2019                 be_rx_stats_update(rxo, rxcp);
2020         }
2021
2022         if (work_done) {
2023                 be_cq_notify(adapter, rx_cq->id, true, work_done);
2024
2025                 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2026                         be_post_rx_frags(rxo, GFP_ATOMIC);
2027         }
2028
2029         return work_done;
2030 }
2031
2032 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2033                           int budget, int idx)
2034 {
2035         struct be_eth_tx_compl *txcp;
2036         int num_wrbs = 0, work_done;
2037
2038         for (work_done = 0; work_done < budget; work_done++) {
2039                 txcp = be_tx_compl_get(&txo->cq);
2040                 if (!txcp)
2041                         break;
2042                 num_wrbs += be_tx_compl_process(adapter, txo,
2043                                 AMAP_GET_BITS(struct amap_eth_tx_compl,
2044                                         wrb_index, txcp));
2045         }
2046
2047         if (work_done) {
2048                 be_cq_notify(adapter, txo->cq.id, true, work_done);
2049                 atomic_sub(num_wrbs, &txo->q.used);
2050
2051                 /* As Tx wrbs have been freed up, wake up netdev queue
2052                  * if it was stopped due to lack of tx wrbs.  */
2053                 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2054                         atomic_read(&txo->q.used) < txo->q.len / 2) {
2055                         netif_wake_subqueue(adapter->netdev, idx);
2056                 }
2057
2058                 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2059                 tx_stats(txo)->tx_compl += work_done;
2060                 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2061         }
2062         return (work_done < budget); /* Done */
2063 }
2064
2065 int be_poll(struct napi_struct *napi, int budget)
2066 {
2067         struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2068         struct be_adapter *adapter = eqo->adapter;
2069         int max_work = 0, work, i;
2070         bool tx_done;
2071
2072         /* Process all TXQs serviced by this EQ */
2073         for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2074                 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2075                                         eqo->tx_budget, i);
2076                 if (!tx_done)
2077                         max_work = budget;
2078         }
2079
2080         /* This loop will iterate twice for EQ0 in which
2081          * completions of the last RXQ (default one) are also processed
2082          * For other EQs the loop iterates only once
2083          */
2084         for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2085                 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2086                 max_work = max(work, max_work);
2087         }
2088
2089         if (is_mcc_eqo(eqo))
2090                 be_process_mcc(adapter);
2091
2092         if (max_work < budget) {
2093                 napi_complete(napi);
2094                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2095         } else {
2096                 /* As we'll continue in polling mode, count and clear events */
2097                 be_eq_notify(adapter, eqo->q.id, false, false, events_get(eqo));
2098         }
2099         return max_work;
2100 }
2101
2102 void be_detect_error(struct be_adapter *adapter)
2103 {
2104         u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2105         u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2106         u32 i;
2107
2108         if (be_crit_error(adapter))
2109                 return;
2110
2111         if (lancer_chip(adapter)) {
2112                 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2113                 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2114                         sliport_err1 = ioread32(adapter->db +
2115                                         SLIPORT_ERROR1_OFFSET);
2116                         sliport_err2 = ioread32(adapter->db +
2117                                         SLIPORT_ERROR2_OFFSET);
2118                 }
2119         } else {
2120                 pci_read_config_dword(adapter->pdev,
2121                                 PCICFG_UE_STATUS_LOW, &ue_lo);
2122                 pci_read_config_dword(adapter->pdev,
2123                                 PCICFG_UE_STATUS_HIGH, &ue_hi);
2124                 pci_read_config_dword(adapter->pdev,
2125                                 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2126                 pci_read_config_dword(adapter->pdev,
2127                                 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2128
2129                 ue_lo = (ue_lo & ~ue_lo_mask);
2130                 ue_hi = (ue_hi & ~ue_hi_mask);
2131         }
2132
2133         if (ue_lo || ue_hi ||
2134                 sliport_status & SLIPORT_STATUS_ERR_MASK) {
2135                 adapter->hw_error = true;
2136                 dev_err(&adapter->pdev->dev,
2137                         "Error detected in the card\n");
2138         }
2139
2140         if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2141                 dev_err(&adapter->pdev->dev,
2142                         "ERR: sliport status 0x%x\n", sliport_status);
2143                 dev_err(&adapter->pdev->dev,
2144                         "ERR: sliport error1 0x%x\n", sliport_err1);
2145                 dev_err(&adapter->pdev->dev,
2146                         "ERR: sliport error2 0x%x\n", sliport_err2);
2147         }
2148
2149         if (ue_lo) {
2150                 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2151                         if (ue_lo & 1)
2152                                 dev_err(&adapter->pdev->dev,
2153                                 "UE: %s bit set\n", ue_status_low_desc[i]);
2154                 }
2155         }
2156
2157         if (ue_hi) {
2158                 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2159                         if (ue_hi & 1)
2160                                 dev_err(&adapter->pdev->dev,
2161                                 "UE: %s bit set\n", ue_status_hi_desc[i]);
2162                 }
2163         }
2164
2165 }
2166
2167 static void be_msix_disable(struct be_adapter *adapter)
2168 {
2169         if (msix_enabled(adapter)) {
2170                 pci_disable_msix(adapter->pdev);
2171                 adapter->num_msix_vec = 0;
2172         }
2173 }
2174
2175 static uint be_num_rss_want(struct be_adapter *adapter)
2176 {
2177         u32 num = 0;
2178         if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2179              !sriov_want(adapter) && be_physfn(adapter) &&
2180              !be_is_mc(adapter)) {
2181                 num = (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2182                 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2183         }
2184         return num;
2185 }
2186
2187 static void be_msix_enable(struct be_adapter *adapter)
2188 {
2189 #define BE_MIN_MSIX_VECTORS             1
2190         int i, status, num_vec, num_roce_vec = 0;
2191
2192         /* If RSS queues are not used, need a vec for default RX Q */
2193         num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2194         if (be_roce_supported(adapter)) {
2195                 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2196                                         (num_online_cpus() + 1));
2197                 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2198                 num_vec += num_roce_vec;
2199                 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2200         }
2201         num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2202
2203         for (i = 0; i < num_vec; i++)
2204                 adapter->msix_entries[i].entry = i;
2205
2206         status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2207         if (status == 0) {
2208                 goto done;
2209         } else if (status >= BE_MIN_MSIX_VECTORS) {
2210                 num_vec = status;
2211                 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2212                                 num_vec) == 0)
2213                         goto done;
2214         }
2215         return;
2216 done:
2217         if (be_roce_supported(adapter)) {
2218                 if (num_vec > num_roce_vec) {
2219                         adapter->num_msix_vec = num_vec - num_roce_vec;
2220                         adapter->num_msix_roce_vec =
2221                                 num_vec - adapter->num_msix_vec;
2222                 } else {
2223                         adapter->num_msix_vec = num_vec;
2224                         adapter->num_msix_roce_vec = 0;
2225                 }
2226         } else
2227                 adapter->num_msix_vec = num_vec;
2228         return;
2229 }
2230
2231 static inline int be_msix_vec_get(struct be_adapter *adapter,
2232                                 struct be_eq_obj *eqo)
2233 {
2234         return adapter->msix_entries[eqo->idx].vector;
2235 }
2236
2237 static int be_msix_register(struct be_adapter *adapter)
2238 {
2239         struct net_device *netdev = adapter->netdev;
2240         struct be_eq_obj *eqo;
2241         int status, i, vec;
2242
2243         for_all_evt_queues(adapter, eqo, i) {
2244                 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2245                 vec = be_msix_vec_get(adapter, eqo);
2246                 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2247                 if (status)
2248                         goto err_msix;
2249         }
2250
2251         return 0;
2252 err_msix:
2253         for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2254                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2255         dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2256                 status);
2257         be_msix_disable(adapter);
2258         return status;
2259 }
2260
2261 static int be_irq_register(struct be_adapter *adapter)
2262 {
2263         struct net_device *netdev = adapter->netdev;
2264         int status;
2265
2266         if (msix_enabled(adapter)) {
2267                 status = be_msix_register(adapter);
2268                 if (status == 0)
2269                         goto done;
2270                 /* INTx is not supported for VF */
2271                 if (!be_physfn(adapter))
2272                         return status;
2273         }
2274
2275         /* INTx */
2276         netdev->irq = adapter->pdev->irq;
2277         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2278                         adapter);
2279         if (status) {
2280                 dev_err(&adapter->pdev->dev,
2281                         "INTx request IRQ failed - err %d\n", status);
2282                 return status;
2283         }
2284 done:
2285         adapter->isr_registered = true;
2286         return 0;
2287 }
2288
2289 static void be_irq_unregister(struct be_adapter *adapter)
2290 {
2291         struct net_device *netdev = adapter->netdev;
2292         struct be_eq_obj *eqo;
2293         int i;
2294
2295         if (!adapter->isr_registered)
2296                 return;
2297
2298         /* INTx */
2299         if (!msix_enabled(adapter)) {
2300                 free_irq(netdev->irq, adapter);
2301                 goto done;
2302         }
2303
2304         /* MSIx */
2305         for_all_evt_queues(adapter, eqo, i)
2306                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2307
2308 done:
2309         adapter->isr_registered = false;
2310 }
2311
2312 static void be_rx_qs_destroy(struct be_adapter *adapter)
2313 {
2314         struct be_queue_info *q;
2315         struct be_rx_obj *rxo;
2316         int i;
2317
2318         for_all_rx_queues(adapter, rxo, i) {
2319                 q = &rxo->q;
2320                 if (q->created) {
2321                         be_cmd_rxq_destroy(adapter, q);
2322                         /* After the rxq is invalidated, wait for a grace time
2323                          * of 1ms for all dma to end and the flush compl to
2324                          * arrive
2325                          */
2326                         mdelay(1);
2327                         be_rx_cq_clean(rxo);
2328                 }
2329                 be_queue_free(adapter, q);
2330         }
2331 }
2332
2333 static int be_close(struct net_device *netdev)
2334 {
2335         struct be_adapter *adapter = netdev_priv(netdev);
2336         struct be_eq_obj *eqo;
2337         int i;
2338
2339         be_roce_dev_close(adapter);
2340
2341         be_async_mcc_disable(adapter);
2342
2343         if (!lancer_chip(adapter))
2344                 be_intr_set(adapter, false);
2345
2346         for_all_evt_queues(adapter, eqo, i) {
2347                 napi_disable(&eqo->napi);
2348                 if (msix_enabled(adapter))
2349                         synchronize_irq(be_msix_vec_get(adapter, eqo));
2350                 else
2351                         synchronize_irq(netdev->irq);
2352                 be_eq_clean(eqo);
2353         }
2354
2355         be_irq_unregister(adapter);
2356
2357         /* Wait for all pending tx completions to arrive so that
2358          * all tx skbs are freed.
2359          */
2360         be_tx_compl_clean(adapter);
2361
2362         be_rx_qs_destroy(adapter);
2363         return 0;
2364 }
2365
2366 static int be_rx_qs_create(struct be_adapter *adapter)
2367 {
2368         struct be_rx_obj *rxo;
2369         int rc, i, j;
2370         u8 rsstable[128];
2371
2372         for_all_rx_queues(adapter, rxo, i) {
2373                 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2374                                     sizeof(struct be_eth_rx_d));
2375                 if (rc)
2376                         return rc;
2377         }
2378
2379         /* The FW would like the default RXQ to be created first */
2380         rxo = default_rxo(adapter);
2381         rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2382                                adapter->if_handle, false, &rxo->rss_id);
2383         if (rc)
2384                 return rc;
2385
2386         for_all_rss_queues(adapter, rxo, i) {
2387                 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2388                                        rx_frag_size, adapter->if_handle,
2389                                        true, &rxo->rss_id);
2390                 if (rc)
2391                         return rc;
2392         }
2393
2394         if (be_multi_rxq(adapter)) {
2395                 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2396                         for_all_rss_queues(adapter, rxo, i) {
2397                                 if ((j + i) >= 128)
2398                                         break;
2399                                 rsstable[j + i] = rxo->rss_id;
2400                         }
2401                 }
2402                 rc = be_cmd_rss_config(adapter, rsstable, 128);
2403                 if (rc)
2404                         return rc;
2405         }
2406
2407         /* First time posting */
2408         for_all_rx_queues(adapter, rxo, i)
2409                 be_post_rx_frags(rxo, GFP_KERNEL);
2410         return 0;
2411 }
2412
2413 static int be_open(struct net_device *netdev)
2414 {
2415         struct be_adapter *adapter = netdev_priv(netdev);
2416         struct be_eq_obj *eqo;
2417         struct be_rx_obj *rxo;
2418         struct be_tx_obj *txo;
2419         u8 link_status;
2420         int status, i;
2421
2422         status = be_rx_qs_create(adapter);
2423         if (status)
2424                 goto err;
2425
2426         be_irq_register(adapter);
2427
2428         if (!lancer_chip(adapter))
2429                 be_intr_set(adapter, true);
2430
2431         for_all_rx_queues(adapter, rxo, i)
2432                 be_cq_notify(adapter, rxo->cq.id, true, 0);
2433
2434         for_all_tx_queues(adapter, txo, i)
2435                 be_cq_notify(adapter, txo->cq.id, true, 0);
2436
2437         be_async_mcc_enable(adapter);
2438
2439         for_all_evt_queues(adapter, eqo, i) {
2440                 napi_enable(&eqo->napi);
2441                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2442         }
2443
2444         status = be_cmd_link_status_query(adapter, NULL, NULL,
2445                                           &link_status, 0);
2446         if (!status)
2447                 be_link_status_update(adapter, link_status);
2448
2449         be_roce_dev_open(adapter);
2450         return 0;
2451 err:
2452         be_close(adapter->netdev);
2453         return -EIO;
2454 }
2455
2456 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2457 {
2458         struct be_dma_mem cmd;
2459         int status = 0;
2460         u8 mac[ETH_ALEN];
2461
2462         memset(mac, 0, ETH_ALEN);
2463
2464         cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2465         cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2466                                     GFP_KERNEL);
2467         if (cmd.va == NULL)
2468                 return -1;
2469         memset(cmd.va, 0, cmd.size);
2470
2471         if (enable) {
2472                 status = pci_write_config_dword(adapter->pdev,
2473                         PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2474                 if (status) {
2475                         dev_err(&adapter->pdev->dev,
2476                                 "Could not enable Wake-on-lan\n");
2477                         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2478                                           cmd.dma);
2479                         return status;
2480                 }
2481                 status = be_cmd_enable_magic_wol(adapter,
2482                                 adapter->netdev->dev_addr, &cmd);
2483                 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2484                 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2485         } else {
2486                 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2487                 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2488                 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2489         }
2490
2491         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2492         return status;
2493 }
2494
2495 /*
2496  * Generate a seed MAC address from the PF MAC Address using jhash.
2497  * MAC Address for VFs are assigned incrementally starting from the seed.
2498  * These addresses are programmed in the ASIC by the PF and the VF driver
2499  * queries for the MAC address during its probe.
2500  */
2501 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2502 {
2503         u32 vf;
2504         int status = 0;
2505         u8 mac[ETH_ALEN];
2506         struct be_vf_cfg *vf_cfg;
2507
2508         be_vf_eth_addr_generate(adapter, mac);
2509
2510         for_all_vfs(adapter, vf_cfg, vf) {
2511                 if (lancer_chip(adapter)) {
2512                         status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
2513                 } else {
2514                         status = be_cmd_pmac_add(adapter, mac,
2515                                                  vf_cfg->if_handle,
2516                                                  &vf_cfg->pmac_id, vf + 1);
2517                 }
2518
2519                 if (status)
2520                         dev_err(&adapter->pdev->dev,
2521                         "Mac address assignment failed for VF %d\n", vf);
2522                 else
2523                         memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2524
2525                 mac[5] += 1;
2526         }
2527         return status;
2528 }
2529
2530 static void be_vf_clear(struct be_adapter *adapter)
2531 {
2532         struct be_vf_cfg *vf_cfg;
2533         u32 vf;
2534
2535         if (be_find_vfs(adapter, ASSIGNED)) {
2536                 dev_warn(&adapter->pdev->dev, "VFs are assigned to VMs\n");
2537                 goto done;
2538         }
2539
2540         for_all_vfs(adapter, vf_cfg, vf) {
2541                 if (lancer_chip(adapter))
2542                         be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2543                 else
2544                         be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2545                                         vf_cfg->pmac_id, vf + 1);
2546
2547                 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2548         }
2549         pci_disable_sriov(adapter->pdev);
2550 done:
2551         kfree(adapter->vf_cfg);
2552         adapter->num_vfs = 0;
2553 }
2554
2555 static int be_clear(struct be_adapter *adapter)
2556 {
2557         int i = 1;
2558
2559         if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2560                 cancel_delayed_work_sync(&adapter->work);
2561                 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2562         }
2563
2564         if (sriov_enabled(adapter))
2565                 be_vf_clear(adapter);
2566
2567         for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2568                 be_cmd_pmac_del(adapter, adapter->if_handle,
2569                         adapter->pmac_id[i], 0);
2570
2571         be_cmd_if_destroy(adapter, adapter->if_handle,  0);
2572
2573         be_mcc_queues_destroy(adapter);
2574         be_rx_cqs_destroy(adapter);
2575         be_tx_queues_destroy(adapter);
2576         be_evt_queues_destroy(adapter);
2577
2578         be_msix_disable(adapter);
2579         return 0;
2580 }
2581
2582 static int be_vf_setup_init(struct be_adapter *adapter)
2583 {
2584         struct be_vf_cfg *vf_cfg;
2585         int vf;
2586
2587         adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2588                                   GFP_KERNEL);
2589         if (!adapter->vf_cfg)
2590                 return -ENOMEM;
2591
2592         for_all_vfs(adapter, vf_cfg, vf) {
2593                 vf_cfg->if_handle = -1;
2594                 vf_cfg->pmac_id = -1;
2595         }
2596         return 0;
2597 }
2598
2599 static int be_vf_setup(struct be_adapter *adapter)
2600 {
2601         struct be_vf_cfg *vf_cfg;
2602         struct device *dev = &adapter->pdev->dev;
2603         u32 cap_flags, en_flags, vf;
2604         u16 def_vlan, lnk_speed;
2605         int status, enabled_vfs;
2606
2607         enabled_vfs = be_find_vfs(adapter, ENABLED);
2608         if (enabled_vfs) {
2609                 dev_warn(dev, "%d VFs are already enabled\n", enabled_vfs);
2610                 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2611                 return 0;
2612         }
2613
2614         if (num_vfs > adapter->dev_num_vfs) {
2615                 dev_warn(dev, "Device supports %d VFs and not %d\n",
2616                          adapter->dev_num_vfs, num_vfs);
2617                 num_vfs = adapter->dev_num_vfs;
2618         }
2619
2620         status = pci_enable_sriov(adapter->pdev, num_vfs);
2621         if (!status) {
2622                 adapter->num_vfs = num_vfs;
2623         } else {
2624                 /* Platform doesn't support SRIOV though device supports it */
2625                 dev_warn(dev, "SRIOV enable failed\n");
2626                 return 0;
2627         }
2628
2629         status = be_vf_setup_init(adapter);
2630         if (status)
2631                 goto err;
2632
2633         cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2634                                 BE_IF_FLAGS_MULTICAST;
2635         for_all_vfs(adapter, vf_cfg, vf) {
2636                 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2637                                           &vf_cfg->if_handle, vf + 1);
2638                 if (status)
2639                         goto err;
2640         }
2641
2642         if (!enabled_vfs) {
2643                 status = be_vf_eth_addr_config(adapter);
2644                 if (status)
2645                         goto err;
2646         }
2647
2648         for_all_vfs(adapter, vf_cfg, vf) {
2649                 status = be_cmd_link_status_query(adapter, NULL, &lnk_speed,
2650                                                   NULL, vf + 1);
2651                 if (status)
2652                         goto err;
2653                 vf_cfg->tx_rate = lnk_speed * 10;
2654
2655                 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2656                                 vf + 1, vf_cfg->if_handle);
2657                 if (status)
2658                         goto err;
2659                 vf_cfg->def_vid = def_vlan;
2660         }
2661         return 0;
2662 err:
2663         return status;
2664 }
2665
2666 static void be_setup_init(struct be_adapter *adapter)
2667 {
2668         adapter->vlan_prio_bmap = 0xff;
2669         adapter->phy.link_speed = -1;
2670         adapter->if_handle = -1;
2671         adapter->be3_native = false;
2672         adapter->promiscuous = false;
2673         adapter->eq_next_idx = 0;
2674         adapter->phy.forced_port_speed = -1;
2675 }
2676
2677 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2678                            bool *active_mac, u32 *pmac_id)
2679 {
2680         int status = 0;
2681
2682         if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2683                 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2684                 if (!lancer_chip(adapter) && !be_physfn(adapter))
2685                         *active_mac = true;
2686                 else
2687                         *active_mac = false;
2688
2689                 return status;
2690         }
2691
2692         if (lancer_chip(adapter)) {
2693                 status = be_cmd_get_mac_from_list(adapter, mac,
2694                                                   active_mac, pmac_id, 0);
2695                 if (*active_mac) {
2696                         status = be_cmd_mac_addr_query(adapter, mac,
2697                                                        MAC_ADDRESS_TYPE_NETWORK,
2698                                                        false, if_handle,
2699                                                        *pmac_id);
2700                 }
2701         } else if (be_physfn(adapter)) {
2702                 /* For BE3, for PF get permanent MAC */
2703                 status = be_cmd_mac_addr_query(adapter, mac,
2704                                                MAC_ADDRESS_TYPE_NETWORK, true,
2705                                                0, 0);
2706                 *active_mac = false;
2707         } else {
2708                 /* For BE3, for VF get soft MAC assigned by PF*/
2709                 status = be_cmd_mac_addr_query(adapter, mac,
2710                                                MAC_ADDRESS_TYPE_NETWORK, false,
2711                                                if_handle, 0);
2712                 *active_mac = true;
2713         }
2714         return status;
2715 }
2716
2717 /* Routine to query per function resource limits */
2718 static int be_get_config(struct be_adapter *adapter)
2719 {
2720         int pos;
2721         u16 dev_num_vfs;
2722
2723         pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2724         if (pos) {
2725                 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2726                                      &dev_num_vfs);
2727                 adapter->dev_num_vfs = dev_num_vfs;
2728         }
2729         return 0;
2730 }
2731
2732 static int be_setup(struct be_adapter *adapter)
2733 {
2734         struct device *dev = &adapter->pdev->dev;
2735         u32 cap_flags, en_flags;
2736         u32 tx_fc, rx_fc;
2737         int status;
2738         u8 mac[ETH_ALEN];
2739         bool active_mac;
2740
2741         be_setup_init(adapter);
2742
2743         be_get_config(adapter);
2744
2745         be_cmd_req_native_mode(adapter);
2746
2747         be_msix_enable(adapter);
2748
2749         status = be_evt_queues_create(adapter);
2750         if (status)
2751                 goto err;
2752
2753         status = be_tx_cqs_create(adapter);
2754         if (status)
2755                 goto err;
2756
2757         status = be_rx_cqs_create(adapter);
2758         if (status)
2759                 goto err;
2760
2761         status = be_mcc_queues_create(adapter);
2762         if (status)
2763                 goto err;
2764
2765         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2766                         BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
2767         cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
2768                         BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
2769
2770         if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2771                 cap_flags |= BE_IF_FLAGS_RSS;
2772                 en_flags |= BE_IF_FLAGS_RSS;
2773         }
2774
2775         status = be_cmd_if_create(adapter, cap_flags, en_flags,
2776                                   &adapter->if_handle, 0);
2777         if (status != 0)
2778                 goto err;
2779
2780         memset(mac, 0, ETH_ALEN);
2781         active_mac = false;
2782         status = be_get_mac_addr(adapter, mac, adapter->if_handle,
2783                                  &active_mac, &adapter->pmac_id[0]);
2784         if (status != 0)
2785                 goto err;
2786
2787         if (!active_mac) {
2788                 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
2789                                          &adapter->pmac_id[0], 0);
2790                 if (status != 0)
2791                         goto err;
2792         }
2793
2794         if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
2795                 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2796                 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2797         }
2798
2799         status = be_tx_qs_create(adapter);
2800         if (status)
2801                 goto err;
2802
2803         be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
2804
2805         if (adapter->vlans_added)
2806                 be_vid_config(adapter);
2807
2808         be_set_rx_mode(adapter->netdev);
2809
2810         be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
2811
2812         if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
2813                 be_cmd_set_flow_control(adapter, adapter->tx_fc,
2814                                         adapter->rx_fc);
2815
2816         if (be_physfn(adapter) && num_vfs) {
2817                 if (adapter->dev_num_vfs)
2818                         be_vf_setup(adapter);
2819                 else
2820                         dev_warn(dev, "device doesn't support SRIOV\n");
2821         }
2822
2823         be_cmd_get_phy_info(adapter);
2824         if (be_pause_supported(adapter))
2825                 adapter->phy.fc_autoneg = 1;
2826
2827         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2828         adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
2829         return 0;
2830 err:
2831         be_clear(adapter);
2832         return status;
2833 }
2834
2835 #ifdef CONFIG_NET_POLL_CONTROLLER
2836 static void be_netpoll(struct net_device *netdev)
2837 {
2838         struct be_adapter *adapter = netdev_priv(netdev);
2839         struct be_eq_obj *eqo;
2840         int i;
2841
2842         for_all_evt_queues(adapter, eqo, i)
2843                 event_handle(eqo);
2844
2845         return;
2846 }
2847 #endif
2848
2849 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
2850 char flash_cookie[2][16] =      {"*** SE FLAS", "H DIRECTORY *** "};
2851
2852 static bool be_flash_redboot(struct be_adapter *adapter,
2853                         const u8 *p, u32 img_start, int image_size,
2854                         int hdr_size)
2855 {
2856         u32 crc_offset;
2857         u8 flashed_crc[4];
2858         int status;
2859
2860         crc_offset = hdr_size + img_start + image_size - 4;
2861
2862         p += crc_offset;
2863
2864         status = be_cmd_get_flash_crc(adapter, flashed_crc,
2865                         (image_size - 4));
2866         if (status) {
2867                 dev_err(&adapter->pdev->dev,
2868                 "could not get crc from flash, not flashing redboot\n");
2869                 return false;
2870         }
2871
2872         /*update redboot only if crc does not match*/
2873         if (!memcmp(flashed_crc, p, 4))
2874                 return false;
2875         else
2876                 return true;
2877 }
2878
2879 static bool phy_flashing_required(struct be_adapter *adapter)
2880 {
2881         return (adapter->phy.phy_type == TN_8022 &&
2882                 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
2883 }
2884
2885 static bool is_comp_in_ufi(struct be_adapter *adapter,
2886                            struct flash_section_info *fsec, int type)
2887 {
2888         int i = 0, img_type = 0;
2889         struct flash_section_info_g2 *fsec_g2 = NULL;
2890
2891         if (adapter->generation != BE_GEN3)
2892                 fsec_g2 = (struct flash_section_info_g2 *)fsec;
2893
2894         for (i = 0; i < MAX_FLASH_COMP; i++) {
2895                 if (fsec_g2)
2896                         img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
2897                 else
2898                         img_type = le32_to_cpu(fsec->fsec_entry[i].type);
2899
2900                 if (img_type == type)
2901                         return true;
2902         }
2903         return false;
2904
2905 }
2906
2907 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
2908                                          int header_size,
2909                                          const struct firmware *fw)
2910 {
2911         struct flash_section_info *fsec = NULL;
2912         const u8 *p = fw->data;
2913
2914         p += header_size;
2915         while (p < (fw->data + fw->size)) {
2916                 fsec = (struct flash_section_info *)p;
2917                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
2918                         return fsec;
2919                 p += 32;
2920         }
2921         return NULL;
2922 }
2923
2924 static int be_flash_data(struct be_adapter *adapter,
2925                          const struct firmware *fw,
2926                          struct be_dma_mem *flash_cmd,
2927                          int num_of_images)
2928
2929 {
2930         int status = 0, i, filehdr_size = 0;
2931         int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
2932         u32 total_bytes = 0, flash_op;
2933         int num_bytes;
2934         const u8 *p = fw->data;
2935         struct be_cmd_write_flashrom *req = flash_cmd->va;
2936         const struct flash_comp *pflashcomp;
2937         int num_comp, hdr_size;
2938         struct flash_section_info *fsec = NULL;
2939
2940         struct flash_comp gen3_flash_types[] = {
2941                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
2942                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
2943                 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
2944                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
2945                 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
2946                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
2947                 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
2948                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
2949                 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
2950                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
2951                 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
2952                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
2953                 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
2954                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
2955                 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
2956                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
2957                 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
2958                         FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
2959                 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
2960                         FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
2961         };
2962
2963         struct flash_comp gen2_flash_types[] = {
2964                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
2965                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
2966                 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
2967                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
2968                 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
2969                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
2970                 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
2971                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
2972                 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
2973                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
2974                 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
2975                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
2976                 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
2977                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
2978                 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
2979                          FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
2980         };
2981
2982         if (adapter->generation == BE_GEN3) {
2983                 pflashcomp = gen3_flash_types;
2984                 filehdr_size = sizeof(struct flash_file_hdr_g3);
2985                 num_comp = ARRAY_SIZE(gen3_flash_types);
2986         } else {
2987                 pflashcomp = gen2_flash_types;
2988                 filehdr_size = sizeof(struct flash_file_hdr_g2);
2989                 num_comp = ARRAY_SIZE(gen2_flash_types);
2990         }
2991         /* Get flash section info*/
2992         fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
2993         if (!fsec) {
2994                 dev_err(&adapter->pdev->dev,
2995                         "Invalid Cookie. UFI corrupted ?\n");
2996                 return -1;
2997         }
2998         for (i = 0; i < num_comp; i++) {
2999                 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3000                         continue;
3001
3002                 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3003                     memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3004                         continue;
3005
3006                 if (pflashcomp[i].optype == OPTYPE_PHY_FW) {
3007                         if (!phy_flashing_required(adapter))
3008                                 continue;
3009                 }
3010
3011                 hdr_size = filehdr_size +
3012                            (num_of_images * sizeof(struct image_hdr));
3013
3014                 if ((pflashcomp[i].optype == OPTYPE_REDBOOT) &&
3015                     (!be_flash_redboot(adapter, fw->data, pflashcomp[i].offset,
3016                                        pflashcomp[i].size, hdr_size)))
3017                         continue;
3018
3019                 /* Flash the component */
3020                 p = fw->data;
3021                 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3022                 if (p + pflashcomp[i].size > fw->data + fw->size)
3023                         return -1;
3024                 total_bytes = pflashcomp[i].size;
3025                 while (total_bytes) {
3026                         if (total_bytes > 32*1024)
3027                                 num_bytes = 32*1024;
3028                         else
3029                                 num_bytes = total_bytes;
3030                         total_bytes -= num_bytes;
3031                         if (!total_bytes) {
3032                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3033                                         flash_op = FLASHROM_OPER_PHY_FLASH;
3034                                 else
3035                                         flash_op = FLASHROM_OPER_FLASH;
3036                         } else {
3037                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3038                                         flash_op = FLASHROM_OPER_PHY_SAVE;
3039                                 else
3040                                         flash_op = FLASHROM_OPER_SAVE;
3041                         }
3042                         memcpy(req->params.data_buf, p, num_bytes);
3043                         p += num_bytes;
3044                         status = be_cmd_write_flashrom(adapter, flash_cmd,
3045                                 pflashcomp[i].optype, flash_op, num_bytes);
3046                         if (status) {
3047                                 if ((status == ILLEGAL_IOCTL_REQ) &&
3048                                         (pflashcomp[i].optype ==
3049                                                 OPTYPE_PHY_FW))
3050                                         break;
3051                                 dev_err(&adapter->pdev->dev,
3052                                         "cmd to write to flash rom failed.\n");
3053                                 return -1;
3054                         }
3055                 }
3056         }
3057         return 0;
3058 }
3059
3060 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
3061 {
3062         if (fhdr == NULL)
3063                 return 0;
3064         if (fhdr->build[0] == '3')
3065                 return BE_GEN3;
3066         else if (fhdr->build[0] == '2')
3067                 return BE_GEN2;
3068         else
3069                 return 0;
3070 }
3071
3072 static int lancer_wait_idle(struct be_adapter *adapter)
3073 {
3074 #define SLIPORT_IDLE_TIMEOUT 30
3075         u32 reg_val;
3076         int status = 0, i;
3077
3078         for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3079                 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3080                 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3081                         break;
3082
3083                 ssleep(1);
3084         }
3085
3086         if (i == SLIPORT_IDLE_TIMEOUT)
3087                 status = -1;
3088
3089         return status;
3090 }
3091
3092 static int lancer_fw_reset(struct be_adapter *adapter)
3093 {
3094         int status = 0;
3095
3096         status = lancer_wait_idle(adapter);
3097         if (status)
3098                 return status;
3099
3100         iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3101                   PHYSDEV_CONTROL_OFFSET);
3102
3103         return status;
3104 }
3105
3106 static int lancer_fw_download(struct be_adapter *adapter,
3107                                 const struct firmware *fw)
3108 {
3109 #define LANCER_FW_DOWNLOAD_CHUNK      (32 * 1024)
3110 #define LANCER_FW_DOWNLOAD_LOCATION   "/prg"
3111         struct be_dma_mem flash_cmd;
3112         const u8 *data_ptr = NULL;
3113         u8 *dest_image_ptr = NULL;
3114         size_t image_size = 0;
3115         u32 chunk_size = 0;
3116         u32 data_written = 0;
3117         u32 offset = 0;
3118         int status = 0;
3119         u8 add_status = 0;
3120         u8 change_status;
3121
3122         if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3123                 dev_err(&adapter->pdev->dev,
3124                         "FW Image not properly aligned. "
3125                         "Length must be 4 byte aligned.\n");
3126                 status = -EINVAL;
3127                 goto lancer_fw_exit;
3128         }
3129
3130         flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3131                                 + LANCER_FW_DOWNLOAD_CHUNK;
3132         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3133                                                 &flash_cmd.dma, GFP_KERNEL);
3134         if (!flash_cmd.va) {
3135                 status = -ENOMEM;
3136                 dev_err(&adapter->pdev->dev,
3137                         "Memory allocation failure while flashing\n");
3138                 goto lancer_fw_exit;
3139         }
3140
3141         dest_image_ptr = flash_cmd.va +
3142                                 sizeof(struct lancer_cmd_req_write_object);
3143         image_size = fw->size;
3144         data_ptr = fw->data;
3145
3146         while (image_size) {
3147                 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3148
3149                 /* Copy the image chunk content. */
3150                 memcpy(dest_image_ptr, data_ptr, chunk_size);
3151
3152                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3153                                                  chunk_size, offset,
3154                                                  LANCER_FW_DOWNLOAD_LOCATION,
3155                                                  &data_written, &change_status,
3156                                                  &add_status);
3157                 if (status)
3158                         break;
3159
3160                 offset += data_written;
3161                 data_ptr += data_written;
3162                 image_size -= data_written;
3163         }
3164
3165         if (!status) {
3166                 /* Commit the FW written */
3167                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3168                                                  0, offset,
3169                                                  LANCER_FW_DOWNLOAD_LOCATION,
3170                                                  &data_written, &change_status,
3171                                                  &add_status);
3172         }
3173
3174         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3175                                 flash_cmd.dma);
3176         if (status) {
3177                 dev_err(&adapter->pdev->dev,
3178                         "Firmware load error. "
3179                         "Status code: 0x%x Additional Status: 0x%x\n",
3180                         status, add_status);
3181                 goto lancer_fw_exit;
3182         }
3183
3184         if (change_status == LANCER_FW_RESET_NEEDED) {
3185                 status = lancer_fw_reset(adapter);
3186                 if (status) {
3187                         dev_err(&adapter->pdev->dev,
3188                                 "Adapter busy for FW reset.\n"
3189                                 "New FW will not be active.\n");
3190                         goto lancer_fw_exit;
3191                 }
3192         } else if (change_status != LANCER_NO_RESET_NEEDED) {
3193                         dev_err(&adapter->pdev->dev,
3194                                 "System reboot required for new FW"
3195                                 " to be active\n");
3196         }
3197
3198         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3199 lancer_fw_exit:
3200         return status;
3201 }
3202
3203 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3204 {
3205         struct flash_file_hdr_g2 *fhdr;
3206         struct flash_file_hdr_g3 *fhdr3;
3207         struct image_hdr *img_hdr_ptr = NULL;
3208         struct be_dma_mem flash_cmd;
3209         const u8 *p;
3210         int status = 0, i = 0, num_imgs = 0;
3211
3212         p = fw->data;
3213         fhdr = (struct flash_file_hdr_g2 *) p;
3214
3215         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
3216         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3217                                           &flash_cmd.dma, GFP_KERNEL);
3218         if (!flash_cmd.va) {
3219                 status = -ENOMEM;
3220                 dev_err(&adapter->pdev->dev,
3221                         "Memory allocation failure while flashing\n");
3222                 goto be_fw_exit;
3223         }
3224
3225         if ((adapter->generation == BE_GEN3) &&
3226                         (get_ufigen_type(fhdr) == BE_GEN3)) {
3227                 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
3228                 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3229                 for (i = 0; i < num_imgs; i++) {
3230                         img_hdr_ptr = (struct image_hdr *) (fw->data +
3231                                         (sizeof(struct flash_file_hdr_g3) +
3232                                          i * sizeof(struct image_hdr)));
3233                         if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
3234                                 status = be_flash_data(adapter, fw, &flash_cmd,
3235                                                         num_imgs);
3236                 }
3237         } else if ((adapter->generation == BE_GEN2) &&
3238                         (get_ufigen_type(fhdr) == BE_GEN2)) {
3239                 status = be_flash_data(adapter, fw, &flash_cmd, 0);
3240         } else {
3241                 dev_err(&adapter->pdev->dev,
3242                         "UFI and Interface are not compatible for flashing\n");
3243                 status = -1;
3244         }
3245
3246         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3247                           flash_cmd.dma);
3248         if (status) {
3249                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3250                 goto be_fw_exit;
3251         }
3252
3253         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3254
3255 be_fw_exit:
3256         return status;
3257 }
3258
3259 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3260 {
3261         const struct firmware *fw;
3262         int status;
3263
3264         if (!netif_running(adapter->netdev)) {
3265                 dev_err(&adapter->pdev->dev,
3266                         "Firmware load not allowed (interface is down)\n");
3267                 return -1;
3268         }
3269
3270         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3271         if (status)
3272                 goto fw_exit;
3273
3274         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3275
3276         if (lancer_chip(adapter))
3277                 status = lancer_fw_download(adapter, fw);
3278         else
3279                 status = be_fw_download(adapter, fw);
3280
3281 fw_exit:
3282         release_firmware(fw);
3283         return status;
3284 }
3285
3286 static const struct net_device_ops be_netdev_ops = {
3287         .ndo_open               = be_open,
3288         .ndo_stop               = be_close,
3289         .ndo_start_xmit         = be_xmit,
3290         .ndo_set_rx_mode        = be_set_rx_mode,
3291         .ndo_set_mac_address    = be_mac_addr_set,
3292         .ndo_change_mtu         = be_change_mtu,
3293         .ndo_get_stats64        = be_get_stats64,
3294         .ndo_validate_addr      = eth_validate_addr,
3295         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
3296         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
3297         .ndo_set_vf_mac         = be_set_vf_mac,
3298         .ndo_set_vf_vlan        = be_set_vf_vlan,
3299         .ndo_set_vf_tx_rate     = be_set_vf_tx_rate,
3300         .ndo_get_vf_config      = be_get_vf_config,
3301 #ifdef CONFIG_NET_POLL_CONTROLLER
3302         .ndo_poll_controller    = be_netpoll,
3303 #endif
3304 };
3305
3306 static void be_netdev_init(struct net_device *netdev)
3307 {
3308         struct be_adapter *adapter = netdev_priv(netdev);
3309         struct be_eq_obj *eqo;
3310         int i;
3311
3312         netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3313                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3314                 NETIF_F_HW_VLAN_TX;
3315         if (be_multi_rxq(adapter))
3316                 netdev->hw_features |= NETIF_F_RXHASH;
3317
3318         netdev->features |= netdev->hw_features |
3319                 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3320
3321         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3322                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3323
3324         netdev->priv_flags |= IFF_UNICAST_FLT;
3325
3326         netdev->flags |= IFF_MULTICAST;
3327
3328         netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3329
3330         netdev->netdev_ops = &be_netdev_ops;
3331
3332         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3333
3334         for_all_evt_queues(adapter, eqo, i)
3335                 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3336 }
3337
3338 static void be_unmap_pci_bars(struct be_adapter *adapter)
3339 {
3340         if (adapter->csr)
3341                 iounmap(adapter->csr);
3342         if (adapter->db)
3343                 iounmap(adapter->db);
3344         if (adapter->roce_db.base)
3345                 pci_iounmap(adapter->pdev, adapter->roce_db.base);
3346 }
3347
3348 static int lancer_roce_map_pci_bars(struct be_adapter *adapter)
3349 {
3350         struct pci_dev *pdev = adapter->pdev;
3351         u8 __iomem *addr;
3352
3353         addr = pci_iomap(pdev, 2, 0);
3354         if (addr == NULL)
3355                 return -ENOMEM;
3356
3357         adapter->roce_db.base = addr;
3358         adapter->roce_db.io_addr = pci_resource_start(pdev, 2);
3359         adapter->roce_db.size = 8192;
3360         adapter->roce_db.total_size = pci_resource_len(pdev, 2);
3361         return 0;
3362 }
3363
3364 static int be_map_pci_bars(struct be_adapter *adapter)
3365 {
3366         u8 __iomem *addr;
3367         int db_reg;
3368
3369         if (lancer_chip(adapter)) {
3370                 if (be_type_2_3(adapter)) {
3371                         addr = ioremap_nocache(
3372                                         pci_resource_start(adapter->pdev, 0),
3373                                         pci_resource_len(adapter->pdev, 0));
3374                         if (addr == NULL)
3375                                 return -ENOMEM;
3376                         adapter->db = addr;
3377                 }
3378                 if (adapter->if_type == SLI_INTF_TYPE_3) {
3379                         if (lancer_roce_map_pci_bars(adapter))
3380                                 goto pci_map_err;
3381                 }
3382                 return 0;
3383         }
3384
3385         if (be_physfn(adapter)) {
3386                 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3387                                 pci_resource_len(adapter->pdev, 2));
3388                 if (addr == NULL)
3389                         return -ENOMEM;
3390                 adapter->csr = addr;
3391         }
3392
3393         if (adapter->generation == BE_GEN2) {
3394                 db_reg = 4;
3395         } else {
3396                 if (be_physfn(adapter))
3397                         db_reg = 4;
3398                 else
3399                         db_reg = 0;
3400         }
3401         addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3402                                 pci_resource_len(adapter->pdev, db_reg));
3403         if (addr == NULL)
3404                 goto pci_map_err;
3405         adapter->db = addr;
3406         if (adapter->sli_family == SKYHAWK_SLI_FAMILY) {
3407                 adapter->roce_db.size = 4096;
3408                 adapter->roce_db.io_addr =
3409                                 pci_resource_start(adapter->pdev, db_reg);
3410                 adapter->roce_db.total_size =
3411                                 pci_resource_len(adapter->pdev, db_reg);
3412         }
3413         return 0;
3414 pci_map_err:
3415         be_unmap_pci_bars(adapter);
3416         return -ENOMEM;
3417 }
3418
3419 static void be_ctrl_cleanup(struct be_adapter *adapter)
3420 {
3421         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3422
3423         be_unmap_pci_bars(adapter);
3424
3425         if (mem->va)
3426                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3427                                   mem->dma);
3428
3429         mem = &adapter->rx_filter;
3430         if (mem->va)
3431                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3432                                   mem->dma);
3433 }
3434
3435 static int be_ctrl_init(struct be_adapter *adapter)
3436 {
3437         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3438         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3439         struct be_dma_mem *rx_filter = &adapter->rx_filter;
3440         int status;
3441
3442         status = be_map_pci_bars(adapter);
3443         if (status)
3444                 goto done;
3445
3446         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3447         mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3448                                                 mbox_mem_alloc->size,
3449                                                 &mbox_mem_alloc->dma,
3450                                                 GFP_KERNEL);
3451         if (!mbox_mem_alloc->va) {
3452                 status = -ENOMEM;
3453                 goto unmap_pci_bars;
3454         }
3455         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3456         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3457         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3458         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3459
3460         rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3461         rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3462                                         &rx_filter->dma, GFP_KERNEL);
3463         if (rx_filter->va == NULL) {
3464                 status = -ENOMEM;
3465                 goto free_mbox;
3466         }
3467         memset(rx_filter->va, 0, rx_filter->size);
3468
3469         mutex_init(&adapter->mbox_lock);
3470         spin_lock_init(&adapter->mcc_lock);
3471         spin_lock_init(&adapter->mcc_cq_lock);
3472
3473         init_completion(&adapter->flash_compl);
3474         pci_save_state(adapter->pdev);
3475         return 0;
3476
3477 free_mbox:
3478         dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3479                           mbox_mem_alloc->va, mbox_mem_alloc->dma);
3480
3481 unmap_pci_bars:
3482         be_unmap_pci_bars(adapter);
3483
3484 done:
3485         return status;
3486 }
3487
3488 static void be_stats_cleanup(struct be_adapter *adapter)
3489 {
3490         struct be_dma_mem *cmd = &adapter->stats_cmd;
3491
3492         if (cmd->va)
3493                 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3494                                   cmd->va, cmd->dma);
3495 }
3496
3497 static int be_stats_init(struct be_adapter *adapter)
3498 {
3499         struct be_dma_mem *cmd = &adapter->stats_cmd;
3500
3501         if (adapter->generation == BE_GEN2) {
3502                 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3503         } else {
3504                 if (lancer_chip(adapter))
3505                         cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3506                 else
3507                         cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3508         }
3509         cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3510                                      GFP_KERNEL);
3511         if (cmd->va == NULL)
3512                 return -1;
3513         memset(cmd->va, 0, cmd->size);
3514         return 0;
3515 }
3516
3517 static void __devexit be_remove(struct pci_dev *pdev)
3518 {
3519         struct be_adapter *adapter = pci_get_drvdata(pdev);
3520
3521         if (!adapter)
3522                 return;
3523
3524         be_roce_dev_remove(adapter);
3525
3526         cancel_delayed_work_sync(&adapter->func_recovery_work);
3527
3528         unregister_netdev(adapter->netdev);
3529
3530         be_clear(adapter);
3531
3532         /* tell fw we're done with firing cmds */
3533         be_cmd_fw_clean(adapter);
3534
3535         be_stats_cleanup(adapter);
3536
3537         be_ctrl_cleanup(adapter);
3538
3539         pci_set_drvdata(pdev, NULL);
3540         pci_release_regions(pdev);
3541         pci_disable_device(pdev);
3542
3543         free_netdev(adapter->netdev);
3544 }
3545
3546 bool be_is_wol_supported(struct be_adapter *adapter)
3547 {
3548         return ((adapter->wol_cap & BE_WOL_CAP) &&
3549                 !be_is_wol_excluded(adapter)) ? true : false;
3550 }
3551
3552 u32 be_get_fw_log_level(struct be_adapter *adapter)
3553 {
3554         struct be_dma_mem extfat_cmd;
3555         struct be_fat_conf_params *cfgs;
3556         int status;
3557         u32 level = 0;
3558         int j;
3559
3560         memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3561         extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3562         extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3563                                              &extfat_cmd.dma);
3564
3565         if (!extfat_cmd.va) {
3566                 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3567                         __func__);
3568                 goto err;
3569         }
3570
3571         status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3572         if (!status) {
3573                 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3574                                                 sizeof(struct be_cmd_resp_hdr));
3575                 for (j = 0; j < cfgs->module[0].num_modes; j++) {
3576                         if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3577                                 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3578                 }
3579         }
3580         pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3581                             extfat_cmd.dma);
3582 err:
3583         return level;
3584 }
3585 static int be_get_initial_config(struct be_adapter *adapter)
3586 {
3587         int status;
3588         u32 level;
3589
3590         status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3591                         &adapter->function_mode, &adapter->function_caps);
3592         if (status)
3593                 return status;
3594
3595         if (adapter->function_mode & FLEX10_MODE)
3596                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3597         else
3598                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3599
3600         if (be_physfn(adapter))
3601                 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3602         else
3603                 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3604
3605         /* primary mac needs 1 pmac entry */
3606         adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3607                                   sizeof(u32), GFP_KERNEL);
3608         if (!adapter->pmac_id)
3609                 return -ENOMEM;
3610
3611         status = be_cmd_get_cntl_attributes(adapter);
3612         if (status)
3613                 return status;
3614
3615         status = be_cmd_get_acpi_wol_cap(adapter);
3616         if (status) {
3617                 /* in case of a failure to get wol capabillities
3618                  * check the exclusion list to determine WOL capability */
3619                 if (!be_is_wol_excluded(adapter))
3620                         adapter->wol_cap |= BE_WOL_CAP;
3621         }
3622
3623         if (be_is_wol_supported(adapter))
3624                 adapter->wol = true;
3625
3626         /* Must be a power of 2 or else MODULO will BUG_ON */
3627         adapter->be_get_temp_freq = 64;
3628
3629         level = be_get_fw_log_level(adapter);
3630         adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3631
3632         return 0;
3633 }
3634
3635 static int be_dev_type_check(struct be_adapter *adapter)
3636 {
3637         struct pci_dev *pdev = adapter->pdev;
3638         u32 sli_intf = 0, if_type;
3639
3640         switch (pdev->device) {
3641         case BE_DEVICE_ID1:
3642         case OC_DEVICE_ID1:
3643                 adapter->generation = BE_GEN2;
3644                 break;
3645         case BE_DEVICE_ID2:
3646         case OC_DEVICE_ID2:
3647                 adapter->generation = BE_GEN3;
3648                 break;
3649         case OC_DEVICE_ID3:
3650         case OC_DEVICE_ID4:
3651                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3652                 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3653                                                 SLI_INTF_IF_TYPE_SHIFT;
3654                 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3655                                                 SLI_INTF_IF_TYPE_SHIFT;
3656                 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3657                         !be_type_2_3(adapter)) {
3658                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3659                         return -EINVAL;
3660                 }
3661                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3662                                          SLI_INTF_FAMILY_SHIFT);
3663                 adapter->generation = BE_GEN3;
3664                 break;
3665         case OC_DEVICE_ID5:
3666                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3667                 if ((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) {
3668                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3669                         return -EINVAL;
3670                 }
3671                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3672                                          SLI_INTF_FAMILY_SHIFT);
3673                 adapter->generation = BE_GEN3;
3674                 break;
3675         default:
3676                 adapter->generation = 0;
3677         }
3678
3679         pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3680         adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3681         return 0;
3682 }
3683
3684 static int lancer_recover_func(struct be_adapter *adapter)
3685 {
3686         int status;
3687
3688         status = lancer_test_and_set_rdy_state(adapter);
3689         if (status)
3690                 goto err;
3691
3692         if (netif_running(adapter->netdev))
3693                 be_close(adapter->netdev);
3694
3695         be_clear(adapter);
3696
3697         adapter->hw_error = false;
3698         adapter->fw_timeout = false;
3699
3700         status = be_setup(adapter);
3701         if (status)
3702                 goto err;
3703
3704         if (netif_running(adapter->netdev)) {
3705                 status = be_open(adapter->netdev);
3706                 if (status)
3707                         goto err;
3708         }
3709
3710         dev_err(&adapter->pdev->dev,
3711                 "Adapter SLIPORT recovery succeeded\n");
3712         return 0;
3713 err:
3714         dev_err(&adapter->pdev->dev,
3715                 "Adapter SLIPORT recovery failed\n");
3716
3717         return status;
3718 }
3719
3720 static void be_func_recovery_task(struct work_struct *work)
3721 {
3722         struct be_adapter *adapter =
3723                 container_of(work, struct be_adapter,  func_recovery_work.work);
3724         int status;
3725
3726         be_detect_error(adapter);
3727
3728         if (adapter->hw_error && lancer_chip(adapter)) {
3729
3730                 if (adapter->eeh_error)
3731                         goto out;
3732
3733                 rtnl_lock();
3734                 netif_device_detach(adapter->netdev);
3735                 rtnl_unlock();
3736
3737                 status = lancer_recover_func(adapter);
3738
3739                 if (!status)
3740                         netif_device_attach(adapter->netdev);
3741         }
3742
3743 out:
3744         schedule_delayed_work(&adapter->func_recovery_work,
3745                               msecs_to_jiffies(1000));
3746 }
3747
3748 static void be_worker(struct work_struct *work)
3749 {
3750         struct be_adapter *adapter =
3751                 container_of(work, struct be_adapter, work.work);
3752         struct be_rx_obj *rxo;
3753         struct be_eq_obj *eqo;
3754         int i;
3755
3756         /* when interrupts are not yet enabled, just reap any pending
3757         * mcc completions */
3758         if (!netif_running(adapter->netdev)) {
3759                 be_process_mcc(adapter);
3760                 goto reschedule;
3761         }
3762
3763         if (!adapter->stats_cmd_sent) {
3764                 if (lancer_chip(adapter))
3765                         lancer_cmd_get_pport_stats(adapter,
3766                                                 &adapter->stats_cmd);
3767                 else
3768                         be_cmd_get_stats(adapter, &adapter->stats_cmd);
3769         }
3770
3771         if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
3772                 be_cmd_get_die_temperature(adapter);
3773
3774         for_all_rx_queues(adapter, rxo, i) {
3775                 if (rxo->rx_post_starved) {
3776                         rxo->rx_post_starved = false;
3777                         be_post_rx_frags(rxo, GFP_KERNEL);
3778                 }
3779         }
3780
3781         for_all_evt_queues(adapter, eqo, i)
3782                 be_eqd_update(adapter, eqo);
3783
3784 reschedule:
3785         adapter->work_counter++;
3786         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3787 }
3788
3789 static bool be_reset_required(struct be_adapter *adapter)
3790 {
3791         return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
3792 }
3793
3794 static int __devinit be_probe(struct pci_dev *pdev,
3795                         const struct pci_device_id *pdev_id)
3796 {
3797         int status = 0;
3798         struct be_adapter *adapter;
3799         struct net_device *netdev;
3800
3801         status = pci_enable_device(pdev);
3802         if (status)
3803                 goto do_none;
3804
3805         status = pci_request_regions(pdev, DRV_NAME);
3806         if (status)
3807                 goto disable_dev;
3808         pci_set_master(pdev);
3809
3810         netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
3811         if (netdev == NULL) {
3812                 status = -ENOMEM;
3813                 goto rel_reg;
3814         }
3815         adapter = netdev_priv(netdev);
3816         adapter->pdev = pdev;
3817         pci_set_drvdata(pdev, adapter);
3818
3819         status = be_dev_type_check(adapter);
3820         if (status)
3821                 goto free_netdev;
3822
3823         adapter->netdev = netdev;
3824         SET_NETDEV_DEV(netdev, &pdev->dev);
3825
3826         status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3827         if (!status) {
3828                 netdev->features |= NETIF_F_HIGHDMA;
3829         } else {
3830                 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3831                 if (status) {
3832                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3833                         goto free_netdev;
3834                 }
3835         }
3836
3837         status = be_ctrl_init(adapter);
3838         if (status)
3839                 goto free_netdev;
3840
3841         /* sync up with fw's ready state */
3842         if (be_physfn(adapter)) {
3843                 status = be_fw_wait_ready(adapter);
3844                 if (status)
3845                         goto ctrl_clean;
3846         }
3847
3848         /* tell fw we're ready to fire cmds */
3849         status = be_cmd_fw_init(adapter);
3850         if (status)
3851                 goto ctrl_clean;
3852
3853         if (be_reset_required(adapter)) {
3854                 status = be_cmd_reset_function(adapter);
3855                 if (status)
3856                         goto ctrl_clean;
3857         }
3858
3859         /* The INTR bit may be set in the card when probed by a kdump kernel
3860          * after a crash.
3861          */
3862         if (!lancer_chip(adapter))
3863                 be_intr_set(adapter, false);
3864
3865         status = be_stats_init(adapter);
3866         if (status)
3867                 goto ctrl_clean;
3868
3869         status = be_get_initial_config(adapter);
3870         if (status)
3871                 goto stats_clean;
3872
3873         INIT_DELAYED_WORK(&adapter->work, be_worker);
3874         INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
3875         adapter->rx_fc = adapter->tx_fc = true;
3876
3877         status = be_setup(adapter);
3878         if (status)
3879                 goto msix_disable;
3880
3881         be_netdev_init(netdev);
3882         status = register_netdev(netdev);
3883         if (status != 0)
3884                 goto unsetup;
3885
3886         be_roce_dev_add(adapter);
3887
3888         schedule_delayed_work(&adapter->func_recovery_work,
3889                               msecs_to_jiffies(1000));
3890         dev_info(&pdev->dev, "%s: %s port %d\n", netdev->name, nic_name(pdev),
3891                 adapter->port_num);
3892
3893         return 0;
3894
3895 unsetup:
3896         be_clear(adapter);
3897 msix_disable:
3898         be_msix_disable(adapter);
3899 stats_clean:
3900         be_stats_cleanup(adapter);
3901 ctrl_clean:
3902         be_ctrl_cleanup(adapter);
3903 free_netdev:
3904         free_netdev(netdev);
3905         pci_set_drvdata(pdev, NULL);
3906 rel_reg:
3907         pci_release_regions(pdev);
3908 disable_dev:
3909         pci_disable_device(pdev);
3910 do_none:
3911         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3912         return status;
3913 }
3914
3915 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3916 {
3917         struct be_adapter *adapter = pci_get_drvdata(pdev);
3918         struct net_device *netdev =  adapter->netdev;
3919
3920         if (adapter->wol)
3921                 be_setup_wol(adapter, true);
3922
3923         cancel_delayed_work_sync(&adapter->func_recovery_work);
3924
3925         netif_device_detach(netdev);
3926         if (netif_running(netdev)) {
3927                 rtnl_lock();
3928                 be_close(netdev);
3929                 rtnl_unlock();
3930         }
3931         be_clear(adapter);
3932
3933         pci_save_state(pdev);
3934         pci_disable_device(pdev);
3935         pci_set_power_state(pdev, pci_choose_state(pdev, state));
3936         return 0;
3937 }
3938
3939 static int be_resume(struct pci_dev *pdev)
3940 {
3941         int status = 0;
3942         struct be_adapter *adapter = pci_get_drvdata(pdev);
3943         struct net_device *netdev =  adapter->netdev;
3944
3945         netif_device_detach(netdev);
3946
3947         status = pci_enable_device(pdev);
3948         if (status)
3949                 return status;
3950
3951         pci_set_power_state(pdev, 0);
3952         pci_restore_state(pdev);
3953
3954         /* tell fw we're ready to fire cmds */
3955         status = be_cmd_fw_init(adapter);
3956         if (status)
3957                 return status;
3958
3959         be_setup(adapter);
3960         if (netif_running(netdev)) {
3961                 rtnl_lock();
3962                 be_open(netdev);
3963                 rtnl_unlock();
3964         }
3965
3966         schedule_delayed_work(&adapter->func_recovery_work,
3967                               msecs_to_jiffies(1000));
3968         netif_device_attach(netdev);
3969
3970         if (adapter->wol)
3971                 be_setup_wol(adapter, false);
3972
3973         return 0;
3974 }
3975
3976 /*
3977  * An FLR will stop BE from DMAing any data.
3978  */
3979 static void be_shutdown(struct pci_dev *pdev)
3980 {
3981         struct be_adapter *adapter = pci_get_drvdata(pdev);
3982
3983         if (!adapter)
3984                 return;
3985
3986         cancel_delayed_work_sync(&adapter->work);
3987         cancel_delayed_work_sync(&adapter->func_recovery_work);
3988
3989         netif_device_detach(adapter->netdev);
3990
3991         if (adapter->wol)
3992                 be_setup_wol(adapter, true);
3993
3994         be_cmd_reset_function(adapter);
3995
3996         pci_disable_device(pdev);
3997 }
3998
3999 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4000                                 pci_channel_state_t state)
4001 {
4002         struct be_adapter *adapter = pci_get_drvdata(pdev);
4003         struct net_device *netdev =  adapter->netdev;
4004
4005         dev_err(&adapter->pdev->dev, "EEH error detected\n");
4006
4007         adapter->eeh_error = true;
4008
4009         cancel_delayed_work_sync(&adapter->func_recovery_work);
4010
4011         rtnl_lock();
4012         netif_device_detach(netdev);
4013         rtnl_unlock();
4014
4015         if (netif_running(netdev)) {
4016                 rtnl_lock();
4017                 be_close(netdev);
4018                 rtnl_unlock();
4019         }
4020         be_clear(adapter);
4021
4022         if (state == pci_channel_io_perm_failure)
4023                 return PCI_ERS_RESULT_DISCONNECT;
4024
4025         pci_disable_device(pdev);
4026
4027         /* The error could cause the FW to trigger a flash debug dump.
4028          * Resetting the card while flash dump is in progress
4029          * can cause it not to recover; wait for it to finish
4030          */
4031         ssleep(30);
4032         return PCI_ERS_RESULT_NEED_RESET;
4033 }
4034
4035 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4036 {
4037         struct be_adapter *adapter = pci_get_drvdata(pdev);
4038         int status;
4039
4040         dev_info(&adapter->pdev->dev, "EEH reset\n");
4041         be_clear_all_error(adapter);
4042
4043         status = pci_enable_device(pdev);
4044         if (status)
4045                 return PCI_ERS_RESULT_DISCONNECT;
4046
4047         pci_set_master(pdev);
4048         pci_set_power_state(pdev, 0);
4049         pci_restore_state(pdev);
4050
4051         /* Check if card is ok and fw is ready */
4052         status = be_fw_wait_ready(adapter);
4053         if (status)
4054                 return PCI_ERS_RESULT_DISCONNECT;
4055
4056         return PCI_ERS_RESULT_RECOVERED;
4057 }
4058
4059 static void be_eeh_resume(struct pci_dev *pdev)
4060 {
4061         int status = 0;
4062         struct be_adapter *adapter = pci_get_drvdata(pdev);
4063         struct net_device *netdev =  adapter->netdev;
4064
4065         dev_info(&adapter->pdev->dev, "EEH resume\n");
4066
4067         pci_save_state(pdev);
4068
4069         /* tell fw we're ready to fire cmds */
4070         status = be_cmd_fw_init(adapter);
4071         if (status)
4072                 goto err;
4073
4074         status = be_cmd_reset_function(adapter);
4075         if (status)
4076                 goto err;
4077
4078         status = be_setup(adapter);
4079         if (status)
4080                 goto err;
4081
4082         if (netif_running(netdev)) {
4083                 status = be_open(netdev);
4084                 if (status)
4085                         goto err;
4086         }
4087
4088         schedule_delayed_work(&adapter->func_recovery_work,
4089                               msecs_to_jiffies(1000));
4090         netif_device_attach(netdev);
4091         return;
4092 err:
4093         dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4094 }
4095
4096 static struct pci_error_handlers be_eeh_handlers = {
4097         .error_detected = be_eeh_err_detected,
4098         .slot_reset = be_eeh_reset,
4099         .resume = be_eeh_resume,
4100 };
4101
4102 static struct pci_driver be_driver = {
4103         .name = DRV_NAME,
4104         .id_table = be_dev_ids,
4105         .probe = be_probe,
4106         .remove = be_remove,
4107         .suspend = be_suspend,
4108         .resume = be_resume,
4109         .shutdown = be_shutdown,
4110         .err_handler = &be_eeh_handlers
4111 };
4112
4113 static int __init be_init_module(void)
4114 {
4115         if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4116             rx_frag_size != 2048) {
4117                 printk(KERN_WARNING DRV_NAME
4118                         " : Module param rx_frag_size must be 2048/4096/8192."
4119                         " Using 2048\n");
4120                 rx_frag_size = 2048;
4121         }
4122
4123         return pci_register_driver(&be_driver);
4124 }
4125 module_init(be_init_module);
4126
4127 static void __exit be_exit_module(void)
4128 {
4129         pci_unregister_driver(&be_driver);
4130 }
4131 module_exit(be_exit_module);