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 #include <linux/aer.h>
  24
  25 MODULE_VERSION(DRV_VER);
  26 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  27 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  28 MODULE_AUTHOR("ServerEngines Corporation");
  29 MODULE_LICENSE("GPL");
  30
  31 static unsigned int num_vfs;
  32 module_param(num_vfs, uint, S_IRUGO);
  33 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
  34
  35 static ushort rx_frag_size = 2048;
  36 module_param(rx_frag_size, ushort, S_IRUGO);
  37 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  38
  39 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  40         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  41         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  42         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  43         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  44         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
  45         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
  46         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
  47         { 0 }
  48 };
  49 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  50 /* UE Status Low CSR */
  51 static const char * const ue_status_low_desc[] = {
  52         "CEV",
  53         "CTX",
  54         "DBUF",
  55         "ERX",
  56         "Host",
  57         "MPU",
  58         "NDMA",
  59         "PTC ",
  60         "RDMA ",
  61         "RXF ",
  62         "RXIPS ",
  63         "RXULP0 ",
  64         "RXULP1 ",
  65         "RXULP2 ",
  66         "TIM ",
  67         "TPOST ",
  68         "TPRE ",
  69         "TXIPS ",
  70         "TXULP0 ",
  71         "TXULP1 ",
  72         "UC ",
  73         "WDMA ",
  74         "TXULP2 ",
  75         "HOST1 ",
  76         "P0_OB_LINK ",
  77         "P1_OB_LINK ",
  78         "HOST_GPIO ",
  79         "MBOX ",
  80         "AXGMAC0",
  81         "AXGMAC1",
  82         "JTAG",
  83         "MPU_INTPEND"
  84 };
  85 /* UE Status High CSR */
  86 static const char * const ue_status_hi_desc[] = {
  87         "LPCMEMHOST",
  88         "MGMT_MAC",
  89         "PCS0ONLINE",
  90         "MPU_IRAM",
  91         "PCS1ONLINE",
  92         "PCTL0",
  93         "PCTL1",
  94         "PMEM",
  95         "RR",
  96         "TXPB",
  97         "RXPP",
  98         "XAUI",
  99         "TXP",
 100         "ARM",
 101         "IPC",
 102         "HOST2",
 103         "HOST3",
 104         "HOST4",
 105         "HOST5",
 106         "HOST6",
 107         "HOST7",
 108         "HOST8",
 109         "HOST9",
 110         "NETC",
 111         "Unknown",
 112         "Unknown",
 113         "Unknown",
 114         "Unknown",
 115         "Unknown",
 116         "Unknown",
 117         "Unknown",
 118         "Unknown"
 119 };
 120
 121 /* Is BE in a multi-channel mode */
 122 static inline bool be_is_mc(struct be_adapter *adapter) {
 123         return (adapter->function_mode & FLEX10_MODE ||
 124                 adapter->function_mode & VNIC_MODE ||
 125                 adapter->function_mode & UMC_ENABLED);
 126 }
 127
 128 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
 129 {
 130         struct be_dma_mem *mem = &q->dma_mem;
 131         if (mem->va) {
 132                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 133                                   mem->dma);
 134                 mem->va = NULL;
 135         }
 136 }
 137
 138 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
 139                 u16 len, u16 entry_size)
 140 {
 141         struct be_dma_mem *mem = &q->dma_mem;
 142
 143         memset(q, 0, sizeof(*q));
 144         q->len = len;
 145         q->entry_size = entry_size;
 146         mem->size = len * entry_size;
 147         mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
 148                                      GFP_KERNEL);
 149         if (!mem->va)
 150                 return -ENOMEM;
 151         memset(mem->va, 0, mem->size);
 152         return 0;
 153 }
 154
 155 static void be_intr_set(struct be_adapter *adapter, bool enable)
 156 {
 157         u32 reg, enabled;
 158
 159         if (adapter->eeh_error)
 160                 return;
 161
 162         pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
 163                                 &reg);
 164         enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 165
 166         if (!enabled && enable)
 167                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 168         else if (enabled && !enable)
 169                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 170         else
 171                 return;
 172
 173         pci_write_config_dword(adapter->pdev,
 174                         PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
 175 }
 176
 177 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 178 {
 179         u32 val = 0;
 180         val |= qid & DB_RQ_RING_ID_MASK;
 181         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
 182
 183         wmb();
 184         iowrite32(val, adapter->db + DB_RQ_OFFSET);
 185 }
 186
 187 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 188 {
 189         u32 val = 0;
 190         val |= qid & DB_TXULP_RING_ID_MASK;
 191         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
 192
 193         wmb();
 194         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
 195 }
 196
 197 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
 198                 bool arm, bool clear_int, u16 num_popped)
 199 {
 200         u32 val = 0;
 201         val |= qid & DB_EQ_RING_ID_MASK;
 202         val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
 203                         DB_EQ_RING_ID_EXT_MASK_SHIFT);
 204
 205         if (adapter->eeh_error)
 206                 return;
 207
 208         if (arm)
 209                 val |= 1 << DB_EQ_REARM_SHIFT;
 210         if (clear_int)
 211                 val |= 1 << DB_EQ_CLR_SHIFT;
 212         val |= 1 << DB_EQ_EVNT_SHIFT;
 213         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 214         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 215 }
 216
 217 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 218 {
 219         u32 val = 0;
 220         val |= qid & DB_CQ_RING_ID_MASK;
 221         val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
 222                         DB_CQ_RING_ID_EXT_MASK_SHIFT);
 223
 224         if (adapter->eeh_error)
 225                 return;
 226
 227         if (arm)
 228                 val |= 1 << DB_CQ_REARM_SHIFT;
 229         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 230         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 231 }
 232
 233 static int be_mac_addr_set(struct net_device *netdev, void *p)
 234 {
 235         struct be_adapter *adapter = netdev_priv(netdev);
 236         struct sockaddr *addr = p;
 237         int status = 0;
 238         u8 current_mac[ETH_ALEN];
 239         u32 pmac_id = adapter->pmac_id[0];
 240
 241         if (!is_valid_ether_addr(addr->sa_data))
 242                 return -EADDRNOTAVAIL;
 243
 244         status = be_cmd_mac_addr_query(adapter, current_mac, 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         skb->len = curr_frag_len;
1232         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1233                 memcpy(skb->data, start, curr_frag_len);
1234                 /* Complete packet has now been moved to data */
1235                 put_page(page_info->page);
1236                 skb->data_len = 0;
1237                 skb->tail += curr_frag_len;
1238         } else {
1239                 hdr_len = ETH_HLEN;
1240                 memcpy(skb->data, start, hdr_len);
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, compl);
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, compl);
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\n", 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                 num = (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2181                 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2182         }
2183         return num;
2184 }
2185
2186 static void be_msix_enable(struct be_adapter *adapter)
2187 {
2188 #define BE_MIN_MSIX_VECTORS             1
2189         int i, status, num_vec, num_roce_vec = 0;
2190
2191         /* If RSS queues are not used, need a vec for default RX Q */
2192         num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2193         if (be_roce_supported(adapter)) {
2194                 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2195                                         (num_online_cpus() + 1));
2196                 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2197                 num_vec += num_roce_vec;
2198                 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2199         }
2200         num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2201
2202         for (i = 0; i < num_vec; i++)
2203                 adapter->msix_entries[i].entry = i;
2204
2205         status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2206         if (status == 0) {
2207                 goto done;
2208         } else if (status >= BE_MIN_MSIX_VECTORS) {
2209                 num_vec = status;
2210                 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2211                                 num_vec) == 0)
2212                         goto done;
2213         }
2214         return;
2215 done:
2216         if (be_roce_supported(adapter)) {
2217                 if (num_vec > num_roce_vec) {
2218                         adapter->num_msix_vec = num_vec - num_roce_vec;
2219                         adapter->num_msix_roce_vec =
2220                                 num_vec - adapter->num_msix_vec;
2221                 } else {
2222                         adapter->num_msix_vec = num_vec;
2223                         adapter->num_msix_roce_vec = 0;
2224                 }
2225         } else
2226                 adapter->num_msix_vec = num_vec;
2227         return;
2228 }
2229
2230 static inline int be_msix_vec_get(struct be_adapter *adapter,
2231                                 struct be_eq_obj *eqo)
2232 {
2233         return adapter->msix_entries[eqo->idx].vector;
2234 }
2235
2236 static int be_msix_register(struct be_adapter *adapter)
2237 {
2238         struct net_device *netdev = adapter->netdev;
2239         struct be_eq_obj *eqo;
2240         int status, i, vec;
2241
2242         for_all_evt_queues(adapter, eqo, i) {
2243                 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2244                 vec = be_msix_vec_get(adapter, eqo);
2245                 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2246                 if (status)
2247                         goto err_msix;
2248         }
2249
2250         return 0;
2251 err_msix:
2252         for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2253                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2254         dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2255                 status);
2256         be_msix_disable(adapter);
2257         return status;
2258 }
2259
2260 static int be_irq_register(struct be_adapter *adapter)
2261 {
2262         struct net_device *netdev = adapter->netdev;
2263         int status;
2264
2265         if (msix_enabled(adapter)) {
2266                 status = be_msix_register(adapter);
2267                 if (status == 0)
2268                         goto done;
2269                 /* INTx is not supported for VF */
2270                 if (!be_physfn(adapter))
2271                         return status;
2272         }
2273
2274         /* INTx */
2275         netdev->irq = adapter->pdev->irq;
2276         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2277                         adapter);
2278         if (status) {
2279                 dev_err(&adapter->pdev->dev,
2280                         "INTx request IRQ failed - err %d\n", status);
2281                 return status;
2282         }
2283 done:
2284         adapter->isr_registered = true;
2285         return 0;
2286 }
2287
2288 static void be_irq_unregister(struct be_adapter *adapter)
2289 {
2290         struct net_device *netdev = adapter->netdev;
2291         struct be_eq_obj *eqo;
2292         int i;
2293
2294         if (!adapter->isr_registered)
2295                 return;
2296
2297         /* INTx */
2298         if (!msix_enabled(adapter)) {
2299                 free_irq(netdev->irq, adapter);
2300                 goto done;
2301         }
2302
2303         /* MSIx */
2304         for_all_evt_queues(adapter, eqo, i)
2305                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2306
2307 done:
2308         adapter->isr_registered = false;
2309 }
2310
2311 static void be_rx_qs_destroy(struct be_adapter *adapter)
2312 {
2313         struct be_queue_info *q;
2314         struct be_rx_obj *rxo;
2315         int i;
2316
2317         for_all_rx_queues(adapter, rxo, i) {
2318                 q = &rxo->q;
2319                 if (q->created) {
2320                         be_cmd_rxq_destroy(adapter, q);
2321                         /* After the rxq is invalidated, wait for a grace time
2322                          * of 1ms for all dma to end and the flush compl to
2323                          * arrive
2324                          */
2325                         mdelay(1);
2326                         be_rx_cq_clean(rxo);
2327                 }
2328                 be_queue_free(adapter, q);
2329         }
2330 }
2331
2332 static int be_close(struct net_device *netdev)
2333 {
2334         struct be_adapter *adapter = netdev_priv(netdev);
2335         struct be_eq_obj *eqo;
2336         int i;
2337
2338         be_roce_dev_close(adapter);
2339
2340         be_async_mcc_disable(adapter);
2341
2342         if (!lancer_chip(adapter))
2343                 be_intr_set(adapter, false);
2344
2345         for_all_evt_queues(adapter, eqo, i) {
2346                 napi_disable(&eqo->napi);
2347                 if (msix_enabled(adapter))
2348                         synchronize_irq(be_msix_vec_get(adapter, eqo));
2349                 else
2350                         synchronize_irq(netdev->irq);
2351                 be_eq_clean(eqo);
2352         }
2353
2354         be_irq_unregister(adapter);
2355
2356         /* Wait for all pending tx completions to arrive so that
2357          * all tx skbs are freed.
2358          */
2359         be_tx_compl_clean(adapter);
2360
2361         be_rx_qs_destroy(adapter);
2362         return 0;
2363 }
2364
2365 static int be_rx_qs_create(struct be_adapter *adapter)
2366 {
2367         struct be_rx_obj *rxo;
2368         int rc, i, j;
2369         u8 rsstable[128];
2370
2371         for_all_rx_queues(adapter, rxo, i) {
2372                 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2373                                     sizeof(struct be_eth_rx_d));
2374                 if (rc)
2375                         return rc;
2376         }
2377
2378         /* The FW would like the default RXQ to be created first */
2379         rxo = default_rxo(adapter);
2380         rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2381                                adapter->if_handle, false, &rxo->rss_id);
2382         if (rc)
2383                 return rc;
2384
2385         for_all_rss_queues(adapter, rxo, i) {
2386                 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2387                                        rx_frag_size, adapter->if_handle,
2388                                        true, &rxo->rss_id);
2389                 if (rc)
2390                         return rc;
2391         }
2392
2393         if (be_multi_rxq(adapter)) {
2394                 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2395                         for_all_rss_queues(adapter, rxo, i) {
2396                                 if ((j + i) >= 128)
2397                                         break;
2398                                 rsstable[j + i] = rxo->rss_id;
2399                         }
2400                 }
2401                 rc = be_cmd_rss_config(adapter, rsstable, 128);
2402                 if (rc)
2403                         return rc;
2404         }
2405
2406         /* First time posting */
2407         for_all_rx_queues(adapter, rxo, i)
2408                 be_post_rx_frags(rxo, GFP_KERNEL);
2409         return 0;
2410 }
2411
2412 static int be_open(struct net_device *netdev)
2413 {
2414         struct be_adapter *adapter = netdev_priv(netdev);
2415         struct be_eq_obj *eqo;
2416         struct be_rx_obj *rxo;
2417         struct be_tx_obj *txo;
2418         u8 link_status;
2419         int status, i;
2420
2421         status = be_rx_qs_create(adapter);
2422         if (status)
2423                 goto err;
2424
2425         be_irq_register(adapter);
2426
2427         if (!lancer_chip(adapter))
2428                 be_intr_set(adapter, true);
2429
2430         for_all_rx_queues(adapter, rxo, i)
2431                 be_cq_notify(adapter, rxo->cq.id, true, 0);
2432
2433         for_all_tx_queues(adapter, txo, i)
2434                 be_cq_notify(adapter, txo->cq.id, true, 0);
2435
2436         be_async_mcc_enable(adapter);
2437
2438         for_all_evt_queues(adapter, eqo, i) {
2439                 napi_enable(&eqo->napi);
2440                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2441         }
2442
2443         status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2444         if (!status)
2445                 be_link_status_update(adapter, link_status);
2446
2447         be_roce_dev_open(adapter);
2448         return 0;
2449 err:
2450         be_close(adapter->netdev);
2451         return -EIO;
2452 }
2453
2454 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2455 {
2456         struct be_dma_mem cmd;
2457         int status = 0;
2458         u8 mac[ETH_ALEN];
2459
2460         memset(mac, 0, ETH_ALEN);
2461
2462         cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2463         cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2464                                     GFP_KERNEL);
2465         if (cmd.va == NULL)
2466                 return -1;
2467         memset(cmd.va, 0, cmd.size);
2468
2469         if (enable) {
2470                 status = pci_write_config_dword(adapter->pdev,
2471                         PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2472                 if (status) {
2473                         dev_err(&adapter->pdev->dev,
2474                                 "Could not enable Wake-on-lan\n");
2475                         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2476                                           cmd.dma);
2477                         return status;
2478                 }
2479                 status = be_cmd_enable_magic_wol(adapter,
2480                                 adapter->netdev->dev_addr, &cmd);
2481                 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2482                 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2483         } else {
2484                 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2485                 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2486                 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2487         }
2488
2489         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2490         return status;
2491 }
2492
2493 /*
2494  * Generate a seed MAC address from the PF MAC Address using jhash.
2495  * MAC Address for VFs are assigned incrementally starting from the seed.
2496  * These addresses are programmed in the ASIC by the PF and the VF driver
2497  * queries for the MAC address during its probe.
2498  */
2499 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2500 {
2501         u32 vf;
2502         int status = 0;
2503         u8 mac[ETH_ALEN];
2504         struct be_vf_cfg *vf_cfg;
2505
2506         be_vf_eth_addr_generate(adapter, mac);
2507
2508         for_all_vfs(adapter, vf_cfg, vf) {
2509                 if (lancer_chip(adapter)) {
2510                         status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
2511                 } else {
2512                         status = be_cmd_pmac_add(adapter, mac,
2513                                                  vf_cfg->if_handle,
2514                                                  &vf_cfg->pmac_id, vf + 1);
2515                 }
2516
2517                 if (status)
2518                         dev_err(&adapter->pdev->dev,
2519                         "Mac address assignment failed for VF %d\n", vf);
2520                 else
2521                         memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2522
2523                 mac[5] += 1;
2524         }
2525         return status;
2526 }
2527
2528 static void be_vf_clear(struct be_adapter *adapter)
2529 {
2530         struct be_vf_cfg *vf_cfg;
2531         u32 vf;
2532
2533         if (be_find_vfs(adapter, ASSIGNED)) {
2534                 dev_warn(&adapter->pdev->dev, "VFs are assigned to VMs\n");
2535                 goto done;
2536         }
2537
2538         for_all_vfs(adapter, vf_cfg, vf) {
2539                 if (lancer_chip(adapter))
2540                         be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2541                 else
2542                         be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2543                                         vf_cfg->pmac_id, vf + 1);
2544
2545                 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2546         }
2547         pci_disable_sriov(adapter->pdev);
2548 done:
2549         kfree(adapter->vf_cfg);
2550         adapter->num_vfs = 0;
2551 }
2552
2553 static int be_clear(struct be_adapter *adapter)
2554 {
2555         int i = 1;
2556
2557         if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2558                 cancel_delayed_work_sync(&adapter->work);
2559                 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2560         }
2561
2562         if (sriov_enabled(adapter))
2563                 be_vf_clear(adapter);
2564
2565         for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2566                 be_cmd_pmac_del(adapter, adapter->if_handle,
2567                         adapter->pmac_id[i], 0);
2568
2569         be_cmd_if_destroy(adapter, adapter->if_handle,  0);
2570
2571         be_mcc_queues_destroy(adapter);
2572         be_rx_cqs_destroy(adapter);
2573         be_tx_queues_destroy(adapter);
2574         be_evt_queues_destroy(adapter);
2575
2576         be_msix_disable(adapter);
2577         return 0;
2578 }
2579
2580 static int be_vf_setup_init(struct be_adapter *adapter)
2581 {
2582         struct be_vf_cfg *vf_cfg;
2583         int vf;
2584
2585         adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2586                                   GFP_KERNEL);
2587         if (!adapter->vf_cfg)
2588                 return -ENOMEM;
2589
2590         for_all_vfs(adapter, vf_cfg, vf) {
2591                 vf_cfg->if_handle = -1;
2592                 vf_cfg->pmac_id = -1;
2593         }
2594         return 0;
2595 }
2596
2597 static int be_vf_setup(struct be_adapter *adapter)
2598 {
2599         struct be_vf_cfg *vf_cfg;
2600         struct device *dev = &adapter->pdev->dev;
2601         u32 cap_flags, en_flags, vf;
2602         u16 def_vlan, lnk_speed;
2603         int status, enabled_vfs;
2604
2605         enabled_vfs = be_find_vfs(adapter, ENABLED);
2606         if (enabled_vfs) {
2607                 dev_warn(dev, "%d VFs are already enabled\n", enabled_vfs);
2608                 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2609                 return 0;
2610         }
2611
2612         if (num_vfs > adapter->dev_num_vfs) {
2613                 dev_warn(dev, "Device supports %d VFs and not %d\n",
2614                          adapter->dev_num_vfs, num_vfs);
2615                 num_vfs = adapter->dev_num_vfs;
2616         }
2617
2618         status = pci_enable_sriov(adapter->pdev, num_vfs);
2619         if (!status) {
2620                 adapter->num_vfs = num_vfs;
2621         } else {
2622                 /* Platform doesn't support SRIOV though device supports it */
2623                 dev_warn(dev, "SRIOV enable failed\n");
2624                 return 0;
2625         }
2626
2627         status = be_vf_setup_init(adapter);
2628         if (status)
2629                 goto err;
2630
2631         cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2632                                 BE_IF_FLAGS_MULTICAST;
2633         for_all_vfs(adapter, vf_cfg, vf) {
2634                 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2635                                           &vf_cfg->if_handle, vf + 1);
2636                 if (status)
2637                         goto err;
2638         }
2639
2640         if (!enabled_vfs) {
2641                 status = be_vf_eth_addr_config(adapter);
2642                 if (status)
2643                         goto err;
2644         }
2645
2646         for_all_vfs(adapter, vf_cfg, vf) {
2647                 lnk_speed = 1000;
2648                 status = be_cmd_set_qos(adapter, lnk_speed, vf + 1);
2649                 if (status)
2650                         goto err;
2651                 vf_cfg->tx_rate = lnk_speed * 10;
2652
2653                 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2654                                 vf + 1, vf_cfg->if_handle);
2655                 if (status)
2656                         goto err;
2657                 vf_cfg->def_vid = def_vlan;
2658         }
2659         return 0;
2660 err:
2661         return status;
2662 }
2663
2664 static void be_setup_init(struct be_adapter *adapter)
2665 {
2666         adapter->vlan_prio_bmap = 0xff;
2667         adapter->phy.link_speed = -1;
2668         adapter->if_handle = -1;
2669         adapter->be3_native = false;
2670         adapter->promiscuous = false;
2671         adapter->eq_next_idx = 0;
2672 }
2673
2674 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2675                            bool *active_mac, u32 *pmac_id)
2676 {
2677         int status = 0;
2678
2679         if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2680                 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2681                 if (!lancer_chip(adapter) && !be_physfn(adapter))
2682                         *active_mac = true;
2683                 else
2684                         *active_mac = false;
2685
2686                 return status;
2687         }
2688
2689         if (lancer_chip(adapter)) {
2690                 status = be_cmd_get_mac_from_list(adapter, mac,
2691                                                   active_mac, pmac_id, 0);
2692                 if (*active_mac) {
2693                         status = be_cmd_mac_addr_query(adapter, mac, false,
2694                                                        if_handle, *pmac_id);
2695                 }
2696         } else if (be_physfn(adapter)) {
2697                 /* For BE3, for PF get permanent MAC */
2698                 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
2699                 *active_mac = false;
2700         } else {
2701                 /* For BE3, for VF get soft MAC assigned by PF*/
2702                 status = be_cmd_mac_addr_query(adapter, mac, false,
2703                                                if_handle, 0);
2704                 *active_mac = true;
2705         }
2706         return status;
2707 }
2708
2709 /* Routine to query per function resource limits */
2710 static int be_get_config(struct be_adapter *adapter)
2711 {
2712         int pos;
2713         u16 dev_num_vfs;
2714
2715         pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2716         if (pos) {
2717                 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2718                                      &dev_num_vfs);
2719                 if (!lancer_chip(adapter))
2720                         dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
2721                 adapter->dev_num_vfs = dev_num_vfs;
2722         }
2723         return 0;
2724 }
2725
2726 static int be_setup(struct be_adapter *adapter)
2727 {
2728         struct device *dev = &adapter->pdev->dev;
2729         u32 cap_flags, en_flags;
2730         u32 tx_fc, rx_fc;
2731         int status;
2732         u8 mac[ETH_ALEN];
2733         bool active_mac;
2734
2735         be_setup_init(adapter);
2736
2737         be_get_config(adapter);
2738
2739         be_cmd_req_native_mode(adapter);
2740
2741         be_msix_enable(adapter);
2742
2743         status = be_evt_queues_create(adapter);
2744         if (status)
2745                 goto err;
2746
2747         status = be_tx_cqs_create(adapter);
2748         if (status)
2749                 goto err;
2750
2751         status = be_rx_cqs_create(adapter);
2752         if (status)
2753                 goto err;
2754
2755         status = be_mcc_queues_create(adapter);
2756         if (status)
2757                 goto err;
2758
2759         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2760                         BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
2761         cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
2762                         BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
2763
2764         if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2765                 cap_flags |= BE_IF_FLAGS_RSS;
2766                 en_flags |= BE_IF_FLAGS_RSS;
2767         }
2768
2769         if (lancer_chip(adapter) && !be_physfn(adapter)) {
2770                 en_flags = BE_IF_FLAGS_UNTAGGED |
2771                             BE_IF_FLAGS_BROADCAST |
2772                             BE_IF_FLAGS_MULTICAST;
2773                 cap_flags = en_flags;
2774         }
2775
2776         status = be_cmd_if_create(adapter, cap_flags, en_flags,
2777                                   &adapter->if_handle, 0);
2778         if (status != 0)
2779                 goto err;
2780
2781         memset(mac, 0, ETH_ALEN);
2782         active_mac = false;
2783         status = be_get_mac_addr(adapter, mac, adapter->if_handle,
2784                                  &active_mac, &adapter->pmac_id[0]);
2785         if (status != 0)
2786                 goto err;
2787
2788         if (!active_mac) {
2789                 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
2790                                          &adapter->pmac_id[0], 0);
2791                 if (status != 0)
2792                         goto err;
2793         }
2794
2795         if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
2796                 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2797                 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2798         }
2799
2800         status = be_tx_qs_create(adapter);
2801         if (status)
2802                 goto err;
2803
2804         be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
2805
2806         if (adapter->vlans_added)
2807                 be_vid_config(adapter);
2808
2809         be_set_rx_mode(adapter->netdev);
2810
2811         be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
2812
2813         if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
2814                 be_cmd_set_flow_control(adapter, adapter->tx_fc,
2815                                         adapter->rx_fc);
2816
2817         if (be_physfn(adapter) && num_vfs) {
2818                 if (adapter->dev_num_vfs)
2819                         be_vf_setup(adapter);
2820                 else
2821                         dev_warn(dev, "device doesn't support SRIOV\n");
2822         }
2823
2824         be_cmd_get_phy_info(adapter);
2825         if (be_pause_supported(adapter))
2826                 adapter->phy.fc_autoneg = 1;
2827
2828         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2829         adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
2830         return 0;
2831 err:
2832         be_clear(adapter);
2833         return status;
2834 }
2835
2836 #ifdef CONFIG_NET_POLL_CONTROLLER
2837 static void be_netpoll(struct net_device *netdev)
2838 {
2839         struct be_adapter *adapter = netdev_priv(netdev);
2840         struct be_eq_obj *eqo;
2841         int i;
2842
2843         for_all_evt_queues(adapter, eqo, i)
2844                 event_handle(eqo);
2845
2846         return;
2847 }
2848 #endif
2849
2850 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
2851 char flash_cookie[2][16] =      {"*** SE FLAS", "H DIRECTORY *** "};
2852
2853 static bool be_flash_redboot(struct be_adapter *adapter,
2854                         const u8 *p, u32 img_start, int image_size,
2855                         int hdr_size)
2856 {
2857         u32 crc_offset;
2858         u8 flashed_crc[4];
2859         int status;
2860
2861         crc_offset = hdr_size + img_start + image_size - 4;
2862
2863         p += crc_offset;
2864
2865         status = be_cmd_get_flash_crc(adapter, flashed_crc,
2866                         (image_size - 4));
2867         if (status) {
2868                 dev_err(&adapter->pdev->dev,
2869                 "could not get crc from flash, not flashing redboot\n");
2870                 return false;
2871         }
2872
2873         /*update redboot only if crc does not match*/
2874         if (!memcmp(flashed_crc, p, 4))
2875                 return false;
2876         else
2877                 return true;
2878 }
2879
2880 static bool phy_flashing_required(struct be_adapter *adapter)
2881 {
2882         return (adapter->phy.phy_type == TN_8022 &&
2883                 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
2884 }
2885
2886 static bool is_comp_in_ufi(struct be_adapter *adapter,
2887                            struct flash_section_info *fsec, int type)
2888 {
2889         int i = 0, img_type = 0;
2890         struct flash_section_info_g2 *fsec_g2 = NULL;
2891
2892         if (adapter->generation != BE_GEN3)
2893                 fsec_g2 = (struct flash_section_info_g2 *)fsec;
2894
2895         for (i = 0; i < MAX_FLASH_COMP; i++) {
2896                 if (fsec_g2)
2897                         img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
2898                 else
2899                         img_type = le32_to_cpu(fsec->fsec_entry[i].type);
2900
2901                 if (img_type == type)
2902                         return true;
2903         }
2904         return false;
2905
2906 }
2907
2908 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
2909                                          int header_size,
2910                                          const struct firmware *fw)
2911 {
2912         struct flash_section_info *fsec = NULL;
2913         const u8 *p = fw->data;
2914
2915         p += header_size;
2916         while (p < (fw->data + fw->size)) {
2917                 fsec = (struct flash_section_info *)p;
2918                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
2919                         return fsec;
2920                 p += 32;
2921         }
2922         return NULL;
2923 }
2924
2925 static int be_flash_data(struct be_adapter *adapter,
2926                          const struct firmware *fw,
2927                          struct be_dma_mem *flash_cmd,
2928                          int num_of_images)
2929
2930 {
2931         int status = 0, i, filehdr_size = 0;
2932         int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
2933         u32 total_bytes = 0, flash_op;
2934         int num_bytes;
2935         const u8 *p = fw->data;
2936         struct be_cmd_write_flashrom *req = flash_cmd->va;
2937         const struct flash_comp *pflashcomp;
2938         int num_comp, hdr_size;
2939         struct flash_section_info *fsec = NULL;
2940
2941         struct flash_comp gen3_flash_types[] = {
2942                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
2943                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
2944                 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
2945                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
2946                 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
2947                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
2948                 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
2949                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
2950                 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
2951                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
2952                 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
2953                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
2954                 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
2955                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
2956                 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
2957                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
2958                 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
2959                         FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
2960                 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
2961                         FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
2962         };
2963
2964         struct flash_comp gen2_flash_types[] = {
2965                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
2966                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
2967                 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
2968                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
2969                 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
2970                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
2971                 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
2972                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
2973                 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
2974                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
2975                 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
2976                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
2977                 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
2978                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
2979                 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
2980                          FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
2981         };
2982
2983         if (adapter->generation == BE_GEN3) {
2984                 pflashcomp = gen3_flash_types;
2985                 filehdr_size = sizeof(struct flash_file_hdr_g3);
2986                 num_comp = ARRAY_SIZE(gen3_flash_types);
2987         } else {
2988                 pflashcomp = gen2_flash_types;
2989                 filehdr_size = sizeof(struct flash_file_hdr_g2);
2990                 num_comp = ARRAY_SIZE(gen2_flash_types);
2991         }
2992         /* Get flash section info*/
2993         fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
2994         if (!fsec) {
2995                 dev_err(&adapter->pdev->dev,
2996                         "Invalid Cookie. UFI corrupted ?\n");
2997                 return -1;
2998         }
2999         for (i = 0; i < num_comp; i++) {
3000                 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3001                         continue;
3002
3003                 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3004                     memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3005                         continue;
3006
3007                 if (pflashcomp[i].optype == OPTYPE_PHY_FW) {
3008                         if (!phy_flashing_required(adapter))
3009                                 continue;
3010                 }
3011
3012                 hdr_size = filehdr_size +
3013                            (num_of_images * sizeof(struct image_hdr));
3014
3015                 if ((pflashcomp[i].optype == OPTYPE_REDBOOT) &&
3016                     (!be_flash_redboot(adapter, fw->data, pflashcomp[i].offset,
3017                                        pflashcomp[i].size, hdr_size)))
3018                         continue;
3019
3020                 /* Flash the component */
3021                 p = fw->data;
3022                 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3023                 if (p + pflashcomp[i].size > fw->data + fw->size)
3024                         return -1;
3025                 total_bytes = pflashcomp[i].size;
3026                 while (total_bytes) {
3027                         if (total_bytes > 32*1024)
3028                                 num_bytes = 32*1024;
3029                         else
3030                                 num_bytes = total_bytes;
3031                         total_bytes -= num_bytes;
3032                         if (!total_bytes) {
3033                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3034                                         flash_op = FLASHROM_OPER_PHY_FLASH;
3035                                 else
3036                                         flash_op = FLASHROM_OPER_FLASH;
3037                         } else {
3038                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3039                                         flash_op = FLASHROM_OPER_PHY_SAVE;
3040                                 else
3041                                         flash_op = FLASHROM_OPER_SAVE;
3042                         }
3043                         memcpy(req->params.data_buf, p, num_bytes);
3044                         p += num_bytes;
3045                         status = be_cmd_write_flashrom(adapter, flash_cmd,
3046                                 pflashcomp[i].optype, flash_op, num_bytes);
3047                         if (status) {
3048                                 if ((status == ILLEGAL_IOCTL_REQ) &&
3049                                         (pflashcomp[i].optype ==
3050                                                 OPTYPE_PHY_FW))
3051                                         break;
3052                                 dev_err(&adapter->pdev->dev,
3053                                         "cmd to write to flash rom failed.\n");
3054                                 return -1;
3055                         }
3056                 }
3057         }
3058         return 0;
3059 }
3060
3061 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
3062 {
3063         if (fhdr == NULL)
3064                 return 0;
3065         if (fhdr->build[0] == '3')
3066                 return BE_GEN3;
3067         else if (fhdr->build[0] == '2')
3068                 return BE_GEN2;
3069         else
3070                 return 0;
3071 }
3072
3073 static int lancer_wait_idle(struct be_adapter *adapter)
3074 {
3075 #define SLIPORT_IDLE_TIMEOUT 30
3076         u32 reg_val;
3077         int status = 0, i;
3078
3079         for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3080                 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3081                 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3082                         break;
3083
3084                 ssleep(1);
3085         }
3086
3087         if (i == SLIPORT_IDLE_TIMEOUT)
3088                 status = -1;
3089
3090         return status;
3091 }
3092
3093 static int lancer_fw_reset(struct be_adapter *adapter)
3094 {
3095         int status = 0;
3096
3097         status = lancer_wait_idle(adapter);
3098         if (status)
3099                 return status;
3100
3101         iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3102                   PHYSDEV_CONTROL_OFFSET);
3103
3104         return status;
3105 }
3106
3107 static int lancer_fw_download(struct be_adapter *adapter,
3108                                 const struct firmware *fw)
3109 {
3110 #define LANCER_FW_DOWNLOAD_CHUNK      (32 * 1024)
3111 #define LANCER_FW_DOWNLOAD_LOCATION   "/prg"
3112         struct be_dma_mem flash_cmd;
3113         const u8 *data_ptr = NULL;
3114         u8 *dest_image_ptr = NULL;
3115         size_t image_size = 0;
3116         u32 chunk_size = 0;
3117         u32 data_written = 0;
3118         u32 offset = 0;
3119         int status = 0;
3120         u8 add_status = 0;
3121         u8 change_status;
3122
3123         if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3124                 dev_err(&adapter->pdev->dev,
3125                         "FW Image not properly aligned. "
3126                         "Length must be 4 byte aligned.\n");
3127                 status = -EINVAL;
3128                 goto lancer_fw_exit;
3129         }
3130
3131         flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3132                                 + LANCER_FW_DOWNLOAD_CHUNK;
3133         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3134                                                 &flash_cmd.dma, GFP_KERNEL);
3135         if (!flash_cmd.va) {
3136                 status = -ENOMEM;
3137                 dev_err(&adapter->pdev->dev,
3138                         "Memory allocation failure while flashing\n");
3139                 goto lancer_fw_exit;
3140         }
3141
3142         dest_image_ptr = flash_cmd.va +
3143                                 sizeof(struct lancer_cmd_req_write_object);
3144         image_size = fw->size;
3145         data_ptr = fw->data;
3146
3147         while (image_size) {
3148                 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3149
3150                 /* Copy the image chunk content. */
3151                 memcpy(dest_image_ptr, data_ptr, chunk_size);
3152
3153                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3154                                                  chunk_size, offset,
3155                                                  LANCER_FW_DOWNLOAD_LOCATION,
3156                                                  &data_written, &change_status,
3157                                                  &add_status);
3158                 if (status)
3159                         break;
3160
3161                 offset += data_written;
3162                 data_ptr += data_written;
3163                 image_size -= data_written;
3164         }
3165
3166         if (!status) {
3167                 /* Commit the FW written */
3168                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3169                                                  0, offset,
3170                                                  LANCER_FW_DOWNLOAD_LOCATION,
3171                                                  &data_written, &change_status,
3172                                                  &add_status);
3173         }
3174
3175         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3176                                 flash_cmd.dma);
3177         if (status) {
3178                 dev_err(&adapter->pdev->dev,
3179                         "Firmware load error. "
3180                         "Status code: 0x%x Additional Status: 0x%x\n",
3181                         status, add_status);
3182                 goto lancer_fw_exit;
3183         }
3184
3185         if (change_status == LANCER_FW_RESET_NEEDED) {
3186                 status = lancer_fw_reset(adapter);
3187                 if (status) {
3188                         dev_err(&adapter->pdev->dev,
3189                                 "Adapter busy for FW reset.\n"
3190                                 "New FW will not be active.\n");
3191                         goto lancer_fw_exit;
3192                 }
3193         } else if (change_status != LANCER_NO_RESET_NEEDED) {
3194                         dev_err(&adapter->pdev->dev,
3195                                 "System reboot required for new FW"
3196                                 " to be active\n");
3197         }
3198
3199         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3200 lancer_fw_exit:
3201         return status;
3202 }
3203
3204 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3205 {
3206         struct flash_file_hdr_g2 *fhdr;
3207         struct flash_file_hdr_g3 *fhdr3;
3208         struct image_hdr *img_hdr_ptr = NULL;
3209         struct be_dma_mem flash_cmd;
3210         const u8 *p;
3211         int status = 0, i = 0, num_imgs = 0;
3212
3213         p = fw->data;
3214         fhdr = (struct flash_file_hdr_g2 *) p;
3215
3216         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
3217         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3218                                           &flash_cmd.dma, GFP_KERNEL);
3219         if (!flash_cmd.va) {
3220                 status = -ENOMEM;
3221                 dev_err(&adapter->pdev->dev,
3222                         "Memory allocation failure while flashing\n");
3223                 goto be_fw_exit;
3224         }
3225
3226         if ((adapter->generation == BE_GEN3) &&
3227                         (get_ufigen_type(fhdr) == BE_GEN3)) {
3228                 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
3229                 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3230                 for (i = 0; i < num_imgs; i++) {
3231                         img_hdr_ptr = (struct image_hdr *) (fw->data +
3232                                         (sizeof(struct flash_file_hdr_g3) +
3233                                          i * sizeof(struct image_hdr)));
3234                         if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
3235                                 status = be_flash_data(adapter, fw, &flash_cmd,
3236                                                         num_imgs);
3237                 }
3238         } else if ((adapter->generation == BE_GEN2) &&
3239                         (get_ufigen_type(fhdr) == BE_GEN2)) {
3240                 status = be_flash_data(adapter, fw, &flash_cmd, 0);
3241         } else {
3242                 dev_err(&adapter->pdev->dev,
3243                         "UFI and Interface are not compatible for flashing\n");
3244                 status = -1;
3245         }
3246
3247         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3248                           flash_cmd.dma);
3249         if (status) {
3250                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3251                 goto be_fw_exit;
3252         }
3253
3254         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3255
3256 be_fw_exit:
3257         return status;
3258 }
3259
3260 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3261 {
3262         const struct firmware *fw;
3263         int status;
3264
3265         if (!netif_running(adapter->netdev)) {
3266                 dev_err(&adapter->pdev->dev,
3267                         "Firmware load not allowed (interface is down)\n");
3268                 return -1;
3269         }
3270
3271         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3272         if (status)
3273                 goto fw_exit;
3274
3275         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3276
3277         if (lancer_chip(adapter))
3278                 status = lancer_fw_download(adapter, fw);
3279         else
3280                 status = be_fw_download(adapter, fw);
3281
3282 fw_exit:
3283         release_firmware(fw);
3284         return status;
3285 }
3286
3287 static const struct net_device_ops be_netdev_ops = {
3288         .ndo_open               = be_open,
3289         .ndo_stop               = be_close,
3290         .ndo_start_xmit         = be_xmit,
3291         .ndo_set_rx_mode        = be_set_rx_mode,
3292         .ndo_set_mac_address    = be_mac_addr_set,
3293         .ndo_change_mtu         = be_change_mtu,
3294         .ndo_get_stats64        = be_get_stats64,
3295         .ndo_validate_addr      = eth_validate_addr,
3296         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
3297         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
3298         .ndo_set_vf_mac         = be_set_vf_mac,
3299         .ndo_set_vf_vlan        = be_set_vf_vlan,
3300         .ndo_set_vf_tx_rate     = be_set_vf_tx_rate,
3301         .ndo_get_vf_config      = be_get_vf_config,
3302 #ifdef CONFIG_NET_POLL_CONTROLLER
3303         .ndo_poll_controller    = be_netpoll,
3304 #endif
3305 };
3306
3307 static void be_netdev_init(struct net_device *netdev)
3308 {
3309         struct be_adapter *adapter = netdev_priv(netdev);
3310         struct be_eq_obj *eqo;
3311         int i;
3312
3313         netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3314                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3315                 NETIF_F_HW_VLAN_TX;
3316         if (be_multi_rxq(adapter))
3317                 netdev->hw_features |= NETIF_F_RXHASH;
3318
3319         netdev->features |= netdev->hw_features |
3320                 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3321
3322         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3323                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3324
3325         netdev->priv_flags |= IFF_UNICAST_FLT;
3326
3327         netdev->flags |= IFF_MULTICAST;
3328
3329         netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3330
3331         netdev->netdev_ops = &be_netdev_ops;
3332
3333         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3334
3335         for_all_evt_queues(adapter, eqo, i)
3336                 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3337 }
3338
3339 static void be_unmap_pci_bars(struct be_adapter *adapter)
3340 {
3341         if (adapter->csr)
3342                 iounmap(adapter->csr);
3343         if (adapter->db)
3344                 iounmap(adapter->db);
3345         if (adapter->roce_db.base)
3346                 pci_iounmap(adapter->pdev, adapter->roce_db.base);
3347 }
3348
3349 static int lancer_roce_map_pci_bars(struct be_adapter *adapter)
3350 {
3351         struct pci_dev *pdev = adapter->pdev;
3352         u8 __iomem *addr;
3353
3354         addr = pci_iomap(pdev, 2, 0);
3355         if (addr == NULL)
3356                 return -ENOMEM;
3357
3358         adapter->roce_db.base = addr;
3359         adapter->roce_db.io_addr = pci_resource_start(pdev, 2);
3360         adapter->roce_db.size = 8192;
3361         adapter->roce_db.total_size = pci_resource_len(pdev, 2);
3362         return 0;
3363 }
3364
3365 static int be_map_pci_bars(struct be_adapter *adapter)
3366 {
3367         u8 __iomem *addr;
3368         int db_reg;
3369
3370         if (lancer_chip(adapter)) {
3371                 if (be_type_2_3(adapter)) {
3372                         addr = ioremap_nocache(
3373                                         pci_resource_start(adapter->pdev, 0),
3374                                         pci_resource_len(adapter->pdev, 0));
3375                         if (addr == NULL)
3376                                 return -ENOMEM;
3377                         adapter->db = addr;
3378                 }
3379                 if (adapter->if_type == SLI_INTF_TYPE_3) {
3380                         if (lancer_roce_map_pci_bars(adapter))
3381                                 goto pci_map_err;
3382                 }
3383                 return 0;
3384         }
3385
3386         if (be_physfn(adapter)) {
3387                 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3388                                 pci_resource_len(adapter->pdev, 2));
3389                 if (addr == NULL)
3390                         return -ENOMEM;
3391                 adapter->csr = addr;
3392         }
3393
3394         if (adapter->generation == BE_GEN2) {
3395                 db_reg = 4;
3396         } else {
3397                 if (be_physfn(adapter))
3398                         db_reg = 4;
3399                 else
3400                         db_reg = 0;
3401         }
3402         addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3403                                 pci_resource_len(adapter->pdev, db_reg));
3404         if (addr == NULL)
3405                 goto pci_map_err;
3406         adapter->db = addr;
3407         if (adapter->sli_family == SKYHAWK_SLI_FAMILY) {
3408                 adapter->roce_db.size = 4096;
3409                 adapter->roce_db.io_addr =
3410                                 pci_resource_start(adapter->pdev, db_reg);
3411                 adapter->roce_db.total_size =
3412                                 pci_resource_len(adapter->pdev, db_reg);
3413         }
3414         return 0;
3415 pci_map_err:
3416         be_unmap_pci_bars(adapter);
3417         return -ENOMEM;
3418 }
3419
3420 static void be_ctrl_cleanup(struct be_adapter *adapter)
3421 {
3422         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3423
3424         be_unmap_pci_bars(adapter);
3425
3426         if (mem->va)
3427                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3428                                   mem->dma);
3429
3430         mem = &adapter->rx_filter;
3431         if (mem->va)
3432                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3433                                   mem->dma);
3434         kfree(adapter->pmac_id);
3435 }
3436
3437 static int be_ctrl_init(struct be_adapter *adapter)
3438 {
3439         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3440         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3441         struct be_dma_mem *rx_filter = &adapter->rx_filter;
3442         int status;
3443
3444         status = be_map_pci_bars(adapter);
3445         if (status)
3446                 goto done;
3447
3448         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3449         mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3450                                                 mbox_mem_alloc->size,
3451                                                 &mbox_mem_alloc->dma,
3452                                                 GFP_KERNEL);
3453         if (!mbox_mem_alloc->va) {
3454                 status = -ENOMEM;
3455                 goto unmap_pci_bars;
3456         }
3457         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3458         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3459         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3460         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3461
3462         rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3463         rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3464                                         &rx_filter->dma, GFP_KERNEL);
3465         if (rx_filter->va == NULL) {
3466                 status = -ENOMEM;
3467                 goto free_mbox;
3468         }
3469         memset(rx_filter->va, 0, rx_filter->size);
3470
3471         /* primary mac needs 1 pmac entry */
3472         adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3473                                    sizeof(*adapter->pmac_id), GFP_KERNEL);
3474         if (!adapter->pmac_id)
3475                 return -ENOMEM;
3476
3477         mutex_init(&adapter->mbox_lock);
3478         spin_lock_init(&adapter->mcc_lock);
3479         spin_lock_init(&adapter->mcc_cq_lock);
3480
3481         init_completion(&adapter->flash_compl);
3482         pci_save_state(adapter->pdev);
3483         return 0;
3484
3485 free_mbox:
3486         dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3487                           mbox_mem_alloc->va, mbox_mem_alloc->dma);
3488
3489 unmap_pci_bars:
3490         be_unmap_pci_bars(adapter);
3491
3492 done:
3493         return status;
3494 }
3495
3496 static void be_stats_cleanup(struct be_adapter *adapter)
3497 {
3498         struct be_dma_mem *cmd = &adapter->stats_cmd;
3499
3500         if (cmd->va)
3501                 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3502                                   cmd->va, cmd->dma);
3503 }
3504
3505 static int be_stats_init(struct be_adapter *adapter)
3506 {
3507         struct be_dma_mem *cmd = &adapter->stats_cmd;
3508
3509         if (adapter->generation == BE_GEN2) {
3510                 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3511         } else {
3512                 if (lancer_chip(adapter))
3513                         cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3514                 else
3515                         cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3516         }
3517         cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3518                                      GFP_KERNEL);
3519         if (cmd->va == NULL)
3520                 return -1;
3521         memset(cmd->va, 0, cmd->size);
3522         return 0;
3523 }
3524
3525 static void __devexit be_remove(struct pci_dev *pdev)
3526 {
3527         struct be_adapter *adapter = pci_get_drvdata(pdev);
3528
3529         if (!adapter)
3530                 return;
3531
3532         be_roce_dev_remove(adapter);
3533
3534         cancel_delayed_work_sync(&adapter->func_recovery_work);
3535
3536         unregister_netdev(adapter->netdev);
3537
3538         be_clear(adapter);
3539
3540         /* tell fw we're done with firing cmds */
3541         be_cmd_fw_clean(adapter);
3542
3543         be_stats_cleanup(adapter);
3544
3545         be_ctrl_cleanup(adapter);
3546
3547         pci_disable_pcie_error_reporting(pdev);
3548
3549         pci_set_drvdata(pdev, NULL);
3550         pci_release_regions(pdev);
3551         pci_disable_device(pdev);
3552
3553         free_netdev(adapter->netdev);
3554 }
3555
3556 bool be_is_wol_supported(struct be_adapter *adapter)
3557 {
3558         return ((adapter->wol_cap & BE_WOL_CAP) &&
3559                 !be_is_wol_excluded(adapter)) ? true : false;
3560 }
3561
3562 u32 be_get_fw_log_level(struct be_adapter *adapter)
3563 {
3564         struct be_dma_mem extfat_cmd;
3565         struct be_fat_conf_params *cfgs;
3566         int status;
3567         u32 level = 0;
3568         int j;
3569
3570         memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3571         extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3572         extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3573                                              &extfat_cmd.dma);
3574
3575         if (!extfat_cmd.va) {
3576                 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3577                         __func__);
3578                 goto err;
3579         }
3580
3581         status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3582         if (!status) {
3583                 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3584                                                 sizeof(struct be_cmd_resp_hdr));
3585                 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
3586                         if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3587                                 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3588                 }
3589         }
3590         pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3591                             extfat_cmd.dma);
3592 err:
3593         return level;
3594 }
3595 static int be_get_initial_config(struct be_adapter *adapter)
3596 {
3597         int status;
3598         u32 level;
3599
3600         status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3601                         &adapter->function_mode, &adapter->function_caps);
3602         if (status)
3603                 return status;
3604
3605         if (adapter->function_mode & FLEX10_MODE)
3606                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3607         else
3608                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3609
3610         if (be_physfn(adapter))
3611                 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3612         else
3613                 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3614
3615         status = be_cmd_get_cntl_attributes(adapter);
3616         if (status)
3617                 return status;
3618
3619         status = be_cmd_get_acpi_wol_cap(adapter);
3620         if (status) {
3621                 /* in case of a failure to get wol capabillities
3622                  * check the exclusion list to determine WOL capability */
3623                 if (!be_is_wol_excluded(adapter))
3624                         adapter->wol_cap |= BE_WOL_CAP;
3625         }
3626
3627         if (be_is_wol_supported(adapter))
3628                 adapter->wol = true;
3629
3630         /* Must be a power of 2 or else MODULO will BUG_ON */
3631         adapter->be_get_temp_freq = 64;
3632
3633         level = be_get_fw_log_level(adapter);
3634         adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3635
3636         return 0;
3637 }
3638
3639 static int be_dev_type_check(struct be_adapter *adapter)
3640 {
3641         struct pci_dev *pdev = adapter->pdev;
3642         u32 sli_intf = 0, if_type;
3643
3644         switch (pdev->device) {
3645         case BE_DEVICE_ID1:
3646         case OC_DEVICE_ID1:
3647                 adapter->generation = BE_GEN2;
3648                 break;
3649         case BE_DEVICE_ID2:
3650         case OC_DEVICE_ID2:
3651                 adapter->generation = BE_GEN3;
3652                 break;
3653         case OC_DEVICE_ID3:
3654         case OC_DEVICE_ID4:
3655                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3656                 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3657                                                 SLI_INTF_IF_TYPE_SHIFT;
3658                 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3659                                                 SLI_INTF_IF_TYPE_SHIFT;
3660                 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3661                         !be_type_2_3(adapter)) {
3662                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3663                         return -EINVAL;
3664                 }
3665                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3666                                          SLI_INTF_FAMILY_SHIFT);
3667                 adapter->generation = BE_GEN3;
3668                 break;
3669         case OC_DEVICE_ID5:
3670                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3671                 if ((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) {
3672                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3673                         return -EINVAL;
3674                 }
3675                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3676                                          SLI_INTF_FAMILY_SHIFT);
3677                 adapter->generation = BE_GEN3;
3678                 break;
3679         default:
3680                 adapter->generation = 0;
3681         }
3682
3683         pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3684         adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3685         return 0;
3686 }
3687
3688 static int lancer_recover_func(struct be_adapter *adapter)
3689 {
3690         int status;
3691
3692         status = lancer_test_and_set_rdy_state(adapter);
3693         if (status)
3694                 goto err;
3695
3696         if (netif_running(adapter->netdev))
3697                 be_close(adapter->netdev);
3698
3699         be_clear(adapter);
3700
3701         adapter->hw_error = false;
3702         adapter->fw_timeout = false;
3703
3704         status = be_setup(adapter);
3705         if (status)
3706                 goto err;
3707
3708         if (netif_running(adapter->netdev)) {
3709                 status = be_open(adapter->netdev);
3710                 if (status)
3711                         goto err;
3712         }
3713
3714         dev_err(&adapter->pdev->dev,
3715                 "Adapter SLIPORT recovery succeeded\n");
3716         return 0;
3717 err:
3718         dev_err(&adapter->pdev->dev,
3719                 "Adapter SLIPORT recovery failed\n");
3720
3721         return status;
3722 }
3723
3724 static void be_func_recovery_task(struct work_struct *work)
3725 {
3726         struct be_adapter *adapter =
3727                 container_of(work, struct be_adapter,  func_recovery_work.work);
3728         int status;
3729
3730         be_detect_error(adapter);
3731
3732         if (adapter->hw_error && lancer_chip(adapter)) {
3733
3734                 if (adapter->eeh_error)
3735                         goto out;
3736
3737                 rtnl_lock();
3738                 netif_device_detach(adapter->netdev);
3739                 rtnl_unlock();
3740
3741                 status = lancer_recover_func(adapter);
3742
3743                 if (!status)
3744                         netif_device_attach(adapter->netdev);
3745         }
3746
3747 out:
3748         schedule_delayed_work(&adapter->func_recovery_work,
3749                               msecs_to_jiffies(1000));
3750 }
3751
3752 static void be_worker(struct work_struct *work)
3753 {
3754         struct be_adapter *adapter =
3755                 container_of(work, struct be_adapter, work.work);
3756         struct be_rx_obj *rxo;
3757         struct be_eq_obj *eqo;
3758         int i;
3759
3760         /* when interrupts are not yet enabled, just reap any pending
3761         * mcc completions */
3762         if (!netif_running(adapter->netdev)) {
3763                 local_bh_disable();
3764                 be_process_mcc(adapter);
3765                 local_bh_enable();
3766                 goto reschedule;
3767         }
3768
3769         if (!adapter->stats_cmd_sent) {
3770                 if (lancer_chip(adapter))
3771                         lancer_cmd_get_pport_stats(adapter,
3772                                                 &adapter->stats_cmd);
3773                 else
3774                         be_cmd_get_stats(adapter, &adapter->stats_cmd);
3775         }
3776
3777         if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
3778                 be_cmd_get_die_temperature(adapter);
3779
3780         for_all_rx_queues(adapter, rxo, i) {
3781                 if (rxo->rx_post_starved) {
3782                         rxo->rx_post_starved = false;
3783                         be_post_rx_frags(rxo, GFP_KERNEL);
3784                 }
3785         }
3786
3787         for_all_evt_queues(adapter, eqo, i)
3788                 be_eqd_update(adapter, eqo);
3789
3790 reschedule:
3791         adapter->work_counter++;
3792         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3793 }
3794
3795 static bool be_reset_required(struct be_adapter *adapter)
3796 {
3797         return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
3798 }
3799
3800 static int __devinit be_probe(struct pci_dev *pdev,
3801                         const struct pci_device_id *pdev_id)
3802 {
3803         int status = 0;
3804         struct be_adapter *adapter;
3805         struct net_device *netdev;
3806         char port_name;
3807
3808         status = pci_enable_device(pdev);
3809         if (status)
3810                 goto do_none;
3811
3812         status = pci_request_regions(pdev, DRV_NAME);
3813         if (status)
3814                 goto disable_dev;
3815         pci_set_master(pdev);
3816
3817         netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
3818         if (netdev == NULL) {
3819                 status = -ENOMEM;
3820                 goto rel_reg;
3821         }
3822         adapter = netdev_priv(netdev);
3823         adapter->pdev = pdev;
3824         pci_set_drvdata(pdev, adapter);
3825
3826         status = be_dev_type_check(adapter);
3827         if (status)
3828                 goto free_netdev;
3829
3830         adapter->netdev = netdev;
3831         SET_NETDEV_DEV(netdev, &pdev->dev);
3832
3833         status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3834         if (!status) {
3835                 netdev->features |= NETIF_F_HIGHDMA;
3836         } else {
3837                 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3838                 if (status) {
3839                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3840                         goto free_netdev;
3841                 }
3842         }
3843
3844         status = pci_enable_pcie_error_reporting(pdev);
3845         if (status)
3846                 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
3847
3848         status = be_ctrl_init(adapter);
3849         if (status)
3850                 goto free_netdev;
3851
3852         /* sync up with fw's ready state */
3853         if (be_physfn(adapter)) {
3854                 status = be_fw_wait_ready(adapter);
3855                 if (status)
3856                         goto ctrl_clean;
3857         }
3858
3859         /* tell fw we're ready to fire cmds */
3860         status = be_cmd_fw_init(adapter);
3861         if (status)
3862                 goto ctrl_clean;
3863
3864         if (be_reset_required(adapter)) {
3865                 status = be_cmd_reset_function(adapter);
3866                 if (status)
3867                         goto ctrl_clean;
3868         }
3869
3870         /* The INTR bit may be set in the card when probed by a kdump kernel
3871          * after a crash.
3872          */
3873         if (!lancer_chip(adapter))
3874                 be_intr_set(adapter, false);
3875
3876         status = be_stats_init(adapter);
3877         if (status)
3878                 goto ctrl_clean;
3879
3880         status = be_get_initial_config(adapter);
3881         if (status)
3882                 goto stats_clean;
3883
3884         INIT_DELAYED_WORK(&adapter->work, be_worker);
3885         INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
3886         adapter->rx_fc = adapter->tx_fc = true;
3887
3888         status = be_setup(adapter);
3889         if (status)
3890                 goto stats_clean;
3891
3892         be_netdev_init(netdev);
3893         status = register_netdev(netdev);
3894         if (status != 0)
3895                 goto unsetup;
3896
3897         be_roce_dev_add(adapter);
3898
3899         schedule_delayed_work(&adapter->func_recovery_work,
3900                               msecs_to_jiffies(1000));
3901
3902         be_cmd_query_port_name(adapter, &port_name);
3903
3904         dev_info(&pdev->dev, "%s: %s port %c\n", netdev->name, nic_name(pdev),
3905                  port_name);
3906
3907         return 0;
3908
3909 unsetup:
3910         be_clear(adapter);
3911 stats_clean:
3912         be_stats_cleanup(adapter);
3913 ctrl_clean:
3914         be_ctrl_cleanup(adapter);
3915 free_netdev:
3916         free_netdev(netdev);
3917         pci_set_drvdata(pdev, NULL);
3918 rel_reg:
3919         pci_release_regions(pdev);
3920 disable_dev:
3921         pci_disable_device(pdev);
3922 do_none:
3923         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3924         return status;
3925 }
3926
3927 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3928 {
3929         struct be_adapter *adapter = pci_get_drvdata(pdev);
3930         struct net_device *netdev =  adapter->netdev;
3931
3932         if (adapter->wol)
3933                 be_setup_wol(adapter, true);
3934
3935         cancel_delayed_work_sync(&adapter->func_recovery_work);
3936
3937         netif_device_detach(netdev);
3938         if (netif_running(netdev)) {
3939                 rtnl_lock();
3940                 be_close(netdev);
3941                 rtnl_unlock();
3942         }
3943         be_clear(adapter);
3944
3945         pci_save_state(pdev);
3946         pci_disable_device(pdev);
3947         pci_set_power_state(pdev, pci_choose_state(pdev, state));
3948         return 0;
3949 }
3950
3951 static int be_resume(struct pci_dev *pdev)
3952 {
3953         int status = 0;
3954         struct be_adapter *adapter = pci_get_drvdata(pdev);
3955         struct net_device *netdev =  adapter->netdev;
3956
3957         netif_device_detach(netdev);
3958
3959         status = pci_enable_device(pdev);
3960         if (status)
3961                 return status;
3962
3963         pci_set_power_state(pdev, 0);
3964         pci_restore_state(pdev);
3965
3966         /* tell fw we're ready to fire cmds */
3967         status = be_cmd_fw_init(adapter);
3968         if (status)
3969                 return status;
3970
3971         be_setup(adapter);
3972         if (netif_running(netdev)) {
3973                 rtnl_lock();
3974                 be_open(netdev);
3975                 rtnl_unlock();
3976         }
3977
3978         schedule_delayed_work(&adapter->func_recovery_work,
3979                               msecs_to_jiffies(1000));
3980         netif_device_attach(netdev);
3981
3982         if (adapter->wol)
3983                 be_setup_wol(adapter, false);
3984
3985         return 0;
3986 }
3987
3988 /*
3989  * An FLR will stop BE from DMAing any data.
3990  */
3991 static void be_shutdown(struct pci_dev *pdev)
3992 {
3993         struct be_adapter *adapter = pci_get_drvdata(pdev);
3994
3995         if (!adapter)
3996                 return;
3997
3998         cancel_delayed_work_sync(&adapter->work);
3999         cancel_delayed_work_sync(&adapter->func_recovery_work);
4000
4001         netif_device_detach(adapter->netdev);
4002
4003         if (adapter->wol)
4004                 be_setup_wol(adapter, true);
4005
4006         be_cmd_reset_function(adapter);
4007
4008         pci_disable_device(pdev);
4009 }
4010
4011 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4012                                 pci_channel_state_t state)
4013 {
4014         struct be_adapter *adapter = pci_get_drvdata(pdev);
4015         struct net_device *netdev =  adapter->netdev;
4016
4017         dev_err(&adapter->pdev->dev, "EEH error detected\n");
4018
4019         adapter->eeh_error = true;
4020
4021         cancel_delayed_work_sync(&adapter->func_recovery_work);
4022
4023         rtnl_lock();
4024         netif_device_detach(netdev);
4025         rtnl_unlock();
4026
4027         if (netif_running(netdev)) {
4028                 rtnl_lock();
4029                 be_close(netdev);
4030                 rtnl_unlock();
4031         }
4032         be_clear(adapter);
4033
4034         if (state == pci_channel_io_perm_failure)
4035                 return PCI_ERS_RESULT_DISCONNECT;
4036
4037         pci_disable_device(pdev);
4038
4039         /* The error could cause the FW to trigger a flash debug dump.
4040          * Resetting the card while flash dump is in progress
4041          * can cause it not to recover; wait for it to finish
4042          */
4043         ssleep(30);
4044         return PCI_ERS_RESULT_NEED_RESET;
4045 }
4046
4047 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4048 {
4049         struct be_adapter *adapter = pci_get_drvdata(pdev);
4050         int status;
4051
4052         dev_info(&adapter->pdev->dev, "EEH reset\n");
4053         be_clear_all_error(adapter);
4054
4055         status = pci_enable_device(pdev);
4056         if (status)
4057                 return PCI_ERS_RESULT_DISCONNECT;
4058
4059         pci_set_master(pdev);
4060         pci_set_power_state(pdev, 0);
4061         pci_restore_state(pdev);
4062
4063         /* Check if card is ok and fw is ready */
4064         status = be_fw_wait_ready(adapter);
4065         if (status)
4066                 return PCI_ERS_RESULT_DISCONNECT;
4067
4068         pci_cleanup_aer_uncorrect_error_status(pdev);
4069         return PCI_ERS_RESULT_RECOVERED;
4070 }
4071
4072 static void be_eeh_resume(struct pci_dev *pdev)
4073 {
4074         int status = 0;
4075         struct be_adapter *adapter = pci_get_drvdata(pdev);
4076         struct net_device *netdev =  adapter->netdev;
4077
4078         dev_info(&adapter->pdev->dev, "EEH resume\n");
4079
4080         pci_save_state(pdev);
4081
4082         /* tell fw we're ready to fire cmds */
4083         status = be_cmd_fw_init(adapter);
4084         if (status)
4085                 goto err;
4086
4087         status = be_cmd_reset_function(adapter);
4088         if (status)
4089                 goto err;
4090
4091         status = be_setup(adapter);
4092         if (status)
4093                 goto err;
4094
4095         if (netif_running(netdev)) {
4096                 status = be_open(netdev);
4097                 if (status)
4098                         goto err;
4099         }
4100
4101         schedule_delayed_work(&adapter->func_recovery_work,
4102                               msecs_to_jiffies(1000));
4103         netif_device_attach(netdev);
4104         return;
4105 err:
4106         dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4107 }
4108
4109 static struct pci_error_handlers be_eeh_handlers = {
4110         .error_detected = be_eeh_err_detected,
4111         .slot_reset = be_eeh_reset,
4112         .resume = be_eeh_resume,
4113 };
4114
4115 static struct pci_driver be_driver = {
4116         .name = DRV_NAME,
4117         .id_table = be_dev_ids,
4118         .probe = be_probe,
4119         .remove = be_remove,
4120         .suspend = be_suspend,
4121         .resume = be_resume,
4122         .shutdown = be_shutdown,
4123         .err_handler = &be_eeh_handlers
4124 };
4125
4126 static int __init be_init_module(void)
4127 {
4128         if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4129             rx_frag_size != 2048) {
4130                 printk(KERN_WARNING DRV_NAME
4131                         " : Module param rx_frag_size must be 2048/4096/8192."
4132                         " Using 2048\n");
4133                 rx_frag_size = 2048;
4134         }
4135
4136         return pci_register_driver(&be_driver);
4137 }
4138 module_init(be_init_module);
4139
4140 static void __exit be_exit_module(void)
4141 {
4142         pci_unregister_driver(&be_driver);
4143 }
4144 module_exit(be_exit_module);