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

   1 /*
   2  * Copyright (C) 2005 - 2011 Emulex
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@emulex.com
  12  *
  13  * Emulex
  14  * 3333 Susan Street
  15  * Costa Mesa, CA 92626
  16  */
  17
  18 #include <linux/prefetch.h>
  19 #include <linux/module.h>
  20 #include "be.h"
  21 #include "be_cmds.h"
  22 #include <asm/div64.h>
  23
  24 MODULE_VERSION(DRV_VER);
  25 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  26 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  27 MODULE_AUTHOR("ServerEngines Corporation");
  28 MODULE_LICENSE("GPL");
  29
  30 static unsigned int num_vfs;
  31 module_param(num_vfs, uint, S_IRUGO);
  32 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
  33
  34 static ushort rx_frag_size = 2048;
  35 module_param(rx_frag_size, ushort, S_IRUGO);
  36 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  37
  38 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  39         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  40         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  41         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  42         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  43         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
  44         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
  45         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
  46         { 0 }
  47 };
  48 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  49 /* UE Status Low CSR */
  50 static const char * const ue_status_low_desc[] = {
  51         "CEV",
  52         "CTX",
  53         "DBUF",
  54         "ERX",
  55         "Host",
  56         "MPU",
  57         "NDMA",
  58         "PTC ",
  59         "RDMA ",
  60         "RXF ",
  61         "RXIPS ",
  62         "RXULP0 ",
  63         "RXULP1 ",
  64         "RXULP2 ",
  65         "TIM ",
  66         "TPOST ",
  67         "TPRE ",
  68         "TXIPS ",
  69         "TXULP0 ",
  70         "TXULP1 ",
  71         "UC ",
  72         "WDMA ",
  73         "TXULP2 ",
  74         "HOST1 ",
  75         "P0_OB_LINK ",
  76         "P1_OB_LINK ",
  77         "HOST_GPIO ",
  78         "MBOX ",
  79         "AXGMAC0",
  80         "AXGMAC1",
  81         "JTAG",
  82         "MPU_INTPEND"
  83 };
  84 /* UE Status High CSR */
  85 static const char * const ue_status_hi_desc[] = {
  86         "LPCMEMHOST",
  87         "MGMT_MAC",
  88         "PCS0ONLINE",
  89         "MPU_IRAM",
  90         "PCS1ONLINE",
  91         "PCTL0",
  92         "PCTL1",
  93         "PMEM",
  94         "RR",
  95         "TXPB",
  96         "RXPP",
  97         "XAUI",
  98         "TXP",
  99         "ARM",
 100         "IPC",
 101         "HOST2",
 102         "HOST3",
 103         "HOST4",
 104         "HOST5",
 105         "HOST6",
 106         "HOST7",
 107         "HOST8",
 108         "HOST9",
 109         "NETC",
 110         "Unknown",
 111         "Unknown",
 112         "Unknown",
 113         "Unknown",
 114         "Unknown",
 115         "Unknown",
 116         "Unknown",
 117         "Unknown"
 118 };
 119
 120 /* Is BE in a multi-channel mode */
 121 static inline bool be_is_mc(struct be_adapter *adapter) {
 122         return (adapter->function_mode & FLEX10_MODE ||
 123                 adapter->function_mode & VNIC_MODE ||
 124                 adapter->function_mode & UMC_ENABLED);
 125 }
 126
 127 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
 128 {
 129         struct be_dma_mem *mem = &q->dma_mem;
 130         if (mem->va) {
 131                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 132                                   mem->dma);
 133                 mem->va = NULL;
 134         }
 135 }
 136
 137 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
 138                 u16 len, u16 entry_size)
 139 {
 140         struct be_dma_mem *mem = &q->dma_mem;
 141
 142         memset(q, 0, sizeof(*q));
 143         q->len = len;
 144         q->entry_size = entry_size;
 145         mem->size = len * entry_size;
 146         mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
 147                                      GFP_KERNEL);
 148         if (!mem->va)
 149                 return -ENOMEM;
 150         memset(mem->va, 0, mem->size);
 151         return 0;
 152 }
 153
 154 static void be_intr_set(struct be_adapter *adapter, bool enable)
 155 {
 156         u32 reg, enabled;
 157
 158         if (adapter->eeh_error)
 159                 return;
 160
 161         pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
 162                                 &reg);
 163         enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 164
 165         if (!enabled && enable)
 166                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 167         else if (enabled && !enable)
 168                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 169         else
 170                 return;
 171
 172         pci_write_config_dword(adapter->pdev,
 173                         PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
 174 }
 175
 176 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 177 {
 178         u32 val = 0;
 179         val |= qid & DB_RQ_RING_ID_MASK;
 180         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
 181
 182         wmb();
 183         iowrite32(val, adapter->db + DB_RQ_OFFSET);
 184 }
 185
 186 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 187 {
 188         u32 val = 0;
 189         val |= qid & DB_TXULP_RING_ID_MASK;
 190         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
 191
 192         wmb();
 193         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
 194 }
 195
 196 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
 197                 bool arm, bool clear_int, u16 num_popped)
 198 {
 199         u32 val = 0;
 200         val |= qid & DB_EQ_RING_ID_MASK;
 201         val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
 202                         DB_EQ_RING_ID_EXT_MASK_SHIFT);
 203
 204         if (adapter->eeh_error)
 205                 return;
 206
 207         if (arm)
 208                 val |= 1 << DB_EQ_REARM_SHIFT;
 209         if (clear_int)
 210                 val |= 1 << DB_EQ_CLR_SHIFT;
 211         val |= 1 << DB_EQ_EVNT_SHIFT;
 212         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 213         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 214 }
 215
 216 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 217 {
 218         u32 val = 0;
 219         val |= qid & DB_CQ_RING_ID_MASK;
 220         val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
 221                         DB_CQ_RING_ID_EXT_MASK_SHIFT);
 222
 223         if (adapter->eeh_error)
 224                 return;
 225
 226         if (arm)
 227                 val |= 1 << DB_CQ_REARM_SHIFT;
 228         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 229         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 230 }
 231
 232 static int be_mac_addr_set(struct net_device *netdev, void *p)
 233 {
 234         struct be_adapter *adapter = netdev_priv(netdev);
 235         struct sockaddr *addr = p;
 236         int status = 0;
 237         u8 current_mac[ETH_ALEN];
 238         u32 pmac_id = adapter->pmac_id[0];
 239
 240         if (!is_valid_ether_addr(addr->sa_data))
 241                 return -EADDRNOTAVAIL;
 242
 243         status = be_cmd_mac_addr_query(adapter, current_mac,
 244                                 MAC_ADDRESS_TYPE_NETWORK, false,
 245                                 adapter->if_handle, 0);
 246         if (status)
 247                 goto err;
 248
 249         if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
 250                 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 251                                 adapter->if_handle, &adapter->pmac_id[0], 0);
 252                 if (status)
 253                         goto err;
 254
 255                 be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
 256         }
 257         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 258         return 0;
 259 err:
 260         dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
 261         return status;
 262 }
 263
 264 static void populate_be2_stats(struct be_adapter *adapter)
 265 {
 266         struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
 267         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 268         struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
 269         struct be_port_rxf_stats_v0 *port_stats =
 270                                         &rxf_stats->port[adapter->port_num];
 271         struct be_drv_stats *drvs = &adapter->drv_stats;
 272
 273         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 274         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 275         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 276         drvs->rx_control_frames = port_stats->rx_control_frames;
 277         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 278         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 279         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 280         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 281         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 282         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 283         drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
 284         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 285         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 286         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 287         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 288         drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
 289         drvs->rx_dropped_header_too_small =
 290                 port_stats->rx_dropped_header_too_small;
 291         drvs->rx_address_mismatch_drops =
 292                                         port_stats->rx_address_mismatch_drops +
 293                                         port_stats->rx_vlan_mismatch_drops;
 294         drvs->rx_alignment_symbol_errors =
 295                 port_stats->rx_alignment_symbol_errors;
 296
 297         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 298         drvs->tx_controlframes = port_stats->tx_controlframes;
 299
 300         if (adapter->port_num)
 301                 drvs->jabber_events = rxf_stats->port1_jabber_events;
 302         else
 303                 drvs->jabber_events = rxf_stats->port0_jabber_events;
 304         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 305         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 306         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 307         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 308         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 309         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 310         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 311 }
 312
 313 static void populate_be3_stats(struct be_adapter *adapter)
 314 {
 315         struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
 316         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 317         struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
 318         struct be_port_rxf_stats_v1 *port_stats =
 319                                         &rxf_stats->port[adapter->port_num];
 320         struct be_drv_stats *drvs = &adapter->drv_stats;
 321
 322         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 323         drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
 324         drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
 325         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 326         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 327         drvs->rx_control_frames = port_stats->rx_control_frames;
 328         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 329         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 330         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 331         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 332         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 333         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 334         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 335         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 336         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 337         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 338         drvs->rx_dropped_header_too_small =
 339                 port_stats->rx_dropped_header_too_small;
 340         drvs->rx_input_fifo_overflow_drop =
 341                 port_stats->rx_input_fifo_overflow_drop;
 342         drvs->rx_address_mismatch_drops = port_stats->rx_address_mismatch_drops;
 343         drvs->rx_alignment_symbol_errors =
 344                 port_stats->rx_alignment_symbol_errors;
 345         drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
 346         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 347         drvs->tx_controlframes = port_stats->tx_controlframes;
 348         drvs->jabber_events = port_stats->jabber_events;
 349         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 350         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 351         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 352         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 353         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 354         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 355         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 356 }
 357
 358 static void populate_lancer_stats(struct be_adapter *adapter)
 359 {
 360
 361         struct be_drv_stats *drvs = &adapter->drv_stats;
 362         struct lancer_pport_stats *pport_stats =
 363                                         pport_stats_from_cmd(adapter);
 364
 365         be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
 366         drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
 367         drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
 368         drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
 369         drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
 370         drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
 371         drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
 372         drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
 373         drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
 374         drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
 375         drvs->rx_dropped_tcp_length =
 376                                 pport_stats->rx_dropped_invalid_tcp_length;
 377         drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
 378         drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
 379         drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
 380         drvs->rx_dropped_header_too_small =
 381                                 pport_stats->rx_dropped_header_too_small;
 382         drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 383         drvs->rx_address_mismatch_drops =
 384                                         pport_stats->rx_address_mismatch_drops +
 385                                         pport_stats->rx_vlan_mismatch_drops;
 386         drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
 387         drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 388         drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
 389         drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
 390         drvs->jabber_events = pport_stats->rx_jabbers;
 391         drvs->forwarded_packets = pport_stats->num_forwards_lo;
 392         drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
 393         drvs->rx_drops_too_many_frags =
 394                                 pport_stats->rx_drops_too_many_frags_lo;
 395 }
 396
 397 static void accumulate_16bit_val(u32 *acc, u16 val)
 398 {
 399 #define lo(x)                   (x & 0xFFFF)
 400 #define hi(x)                   (x & 0xFFFF0000)
 401         bool wrapped = val < lo(*acc);
 402         u32 newacc = hi(*acc) + val;
 403
 404         if (wrapped)
 405                 newacc += 65536;
 406         ACCESS_ONCE(*acc) = newacc;
 407 }
 408
 409 void be_parse_stats(struct be_adapter *adapter)
 410 {
 411         struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
 412         struct be_rx_obj *rxo;
 413         int i;
 414
 415         if (adapter->generation == BE_GEN3) {
 416                 if (lancer_chip(adapter))
 417                         populate_lancer_stats(adapter);
 418                  else
 419                         populate_be3_stats(adapter);
 420         } else {
 421                 populate_be2_stats(adapter);
 422         }
 423
 424         if (lancer_chip(adapter))
 425                 goto done;
 426
 427         /* as erx_v1 is longer than v0, ok to use v1 defn for v0 access */
 428         for_all_rx_queues(adapter, rxo, i) {
 429                 /* below erx HW counter can actually wrap around after
 430                  * 65535. Driver accumulates a 32-bit value
 431                  */
 432                 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
 433                                 (u16)erx->rx_drops_no_fragments[rxo->q.id]);
 434         }
 435 done:
 436         return;
 437 }
 438
 439 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
 440                                         struct rtnl_link_stats64 *stats)
 441 {
 442         struct be_adapter *adapter = netdev_priv(netdev);
 443         struct be_drv_stats *drvs = &adapter->drv_stats;
 444         struct be_rx_obj *rxo;
 445         struct be_tx_obj *txo;
 446         u64 pkts, bytes;
 447         unsigned int start;
 448         int i;
 449
 450         for_all_rx_queues(adapter, rxo, i) {
 451                 const struct be_rx_stats *rx_stats = rx_stats(rxo);
 452                 do {
 453                         start = u64_stats_fetch_begin_bh(&rx_stats->sync);
 454                         pkts = rx_stats(rxo)->rx_pkts;
 455                         bytes = rx_stats(rxo)->rx_bytes;
 456                 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
 457                 stats->rx_packets += pkts;
 458                 stats->rx_bytes += bytes;
 459                 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
 460                 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
 461                                         rx_stats(rxo)->rx_drops_no_frags;
 462         }
 463
 464         for_all_tx_queues(adapter, txo, i) {
 465                 const struct be_tx_stats *tx_stats = tx_stats(txo);
 466                 do {
 467                         start = u64_stats_fetch_begin_bh(&tx_stats->sync);
 468                         pkts = tx_stats(txo)->tx_pkts;
 469                         bytes = tx_stats(txo)->tx_bytes;
 470                 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
 471                 stats->tx_packets += pkts;
 472                 stats->tx_bytes += bytes;
 473         }
 474
 475         /* bad pkts received */
 476         stats->rx_errors = drvs->rx_crc_errors +
 477                 drvs->rx_alignment_symbol_errors +
 478                 drvs->rx_in_range_errors +
 479                 drvs->rx_out_range_errors +
 480                 drvs->rx_frame_too_long +
 481                 drvs->rx_dropped_too_small +
 482                 drvs->rx_dropped_too_short +
 483                 drvs->rx_dropped_header_too_small +
 484                 drvs->rx_dropped_tcp_length +
 485                 drvs->rx_dropped_runt;
 486
 487         /* detailed rx errors */
 488         stats->rx_length_errors = drvs->rx_in_range_errors +
 489                 drvs->rx_out_range_errors +
 490                 drvs->rx_frame_too_long;
 491
 492         stats->rx_crc_errors = drvs->rx_crc_errors;
 493
 494         /* frame alignment errors */
 495         stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
 496
 497         /* receiver fifo overrun */
 498         /* drops_no_pbuf is no per i/f, it's per BE card */
 499         stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
 500                                 drvs->rx_input_fifo_overflow_drop +
 501                                 drvs->rx_drops_no_pbuf;
 502         return stats;
 503 }
 504
 505 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
 506 {
 507         struct net_device *netdev = adapter->netdev;
 508
 509         if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
 510                 netif_carrier_off(netdev);
 511                 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
 512         }
 513
 514         if ((link_status & LINK_STATUS_MASK) == LINK_UP)
 515                 netif_carrier_on(netdev);
 516         else
 517                 netif_carrier_off(netdev);
 518 }
 519
 520 static void be_tx_stats_update(struct be_tx_obj *txo,
 521                         u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
 522 {
 523         struct be_tx_stats *stats = tx_stats(txo);
 524
 525         u64_stats_update_begin(&stats->sync);
 526         stats->tx_reqs++;
 527         stats->tx_wrbs += wrb_cnt;
 528         stats->tx_bytes += copied;
 529         stats->tx_pkts += (gso_segs ? gso_segs : 1);
 530         if (stopped)
 531                 stats->tx_stops++;
 532         u64_stats_update_end(&stats->sync);
 533 }
 534
 535 /* Determine number of WRB entries needed to xmit data in an skb */
 536 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
 537                                                                 bool *dummy)
 538 {
 539         int cnt = (skb->len > skb->data_len);
 540
 541         cnt += skb_shinfo(skb)->nr_frags;
 542
 543         /* to account for hdr wrb */
 544         cnt++;
 545         if (lancer_chip(adapter) || !(cnt & 1)) {
 546                 *dummy = false;
 547         } else {
 548                 /* add a dummy to make it an even num */
 549                 cnt++;
 550                 *dummy = true;
 551         }
 552         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 553         return cnt;
 554 }
 555
 556 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 557 {
 558         wrb->frag_pa_hi = upper_32_bits(addr);
 559         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 560         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 561         wrb->rsvd0 = 0;
 562 }
 563
 564 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
 565                                         struct sk_buff *skb)
 566 {
 567         u8 vlan_prio;
 568         u16 vlan_tag;
 569
 570         vlan_tag = vlan_tx_tag_get(skb);
 571         vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
 572         /* If vlan priority provided by OS is NOT in available bmap */
 573         if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
 574                 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
 575                                 adapter->recommended_prio;
 576
 577         return vlan_tag;
 578 }
 579
 580 static int be_vlan_tag_chk(struct be_adapter *adapter, struct sk_buff *skb)
 581 {
 582         return vlan_tx_tag_present(skb) || adapter->pvid;
 583 }
 584
 585 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
 586                 struct sk_buff *skb, u32 wrb_cnt, u32 len)
 587 {
 588         u16 vlan_tag;
 589
 590         memset(hdr, 0, sizeof(*hdr));
 591
 592         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 593
 594         if (skb_is_gso(skb)) {
 595                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 596                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 597                         hdr, skb_shinfo(skb)->gso_size);
 598                 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
 599                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
 600                 if (lancer_chip(adapter) && adapter->sli_family  ==
 601                                                         LANCER_A0_SLI_FAMILY) {
 602                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
 603                         if (is_tcp_pkt(skb))
 604                                 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
 605                                                                 tcpcs, hdr, 1);
 606                         else if (is_udp_pkt(skb))
 607                                 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
 608                                                                 udpcs, hdr, 1);
 609                 }
 610         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 611                 if (is_tcp_pkt(skb))
 612                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 613                 else if (is_udp_pkt(skb))
 614                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 615         }
 616
 617         if (vlan_tx_tag_present(skb)) {
 618                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 619                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 620                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
 621         }
 622
 623         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 624         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 625         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 626         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 627 }
 628
 629 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
 630                 bool unmap_single)
 631 {
 632         dma_addr_t dma;
 633
 634         be_dws_le_to_cpu(wrb, sizeof(*wrb));
 635
 636         dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
 637         if (wrb->frag_len) {
 638                 if (unmap_single)
 639                         dma_unmap_single(dev, dma, wrb->frag_len,
 640                                          DMA_TO_DEVICE);
 641                 else
 642                         dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
 643         }
 644 }
 645
 646 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
 647                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 648 {
 649         dma_addr_t busaddr;
 650         int i, copied = 0;
 651         struct device *dev = &adapter->pdev->dev;
 652         struct sk_buff *first_skb = skb;
 653         struct be_eth_wrb *wrb;
 654         struct be_eth_hdr_wrb *hdr;
 655         bool map_single = false;
 656         u16 map_head;
 657
 658         hdr = queue_head_node(txq);
 659         queue_head_inc(txq);
 660         map_head = txq->head;
 661
 662         if (skb->len > skb->data_len) {
 663                 int len = skb_headlen(skb);
 664                 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
 665                 if (dma_mapping_error(dev, busaddr))
 666                         goto dma_err;
 667                 map_single = true;
 668                 wrb = queue_head_node(txq);
 669                 wrb_fill(wrb, busaddr, len);
 670                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 671                 queue_head_inc(txq);
 672                 copied += len;
 673         }
 674
 675         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 676                 const struct skb_frag_struct *frag =
 677                         &skb_shinfo(skb)->frags[i];
 678                 busaddr = skb_frag_dma_map(dev, frag, 0,
 679                                            skb_frag_size(frag), DMA_TO_DEVICE);
 680                 if (dma_mapping_error(dev, busaddr))
 681                         goto dma_err;
 682                 wrb = queue_head_node(txq);
 683                 wrb_fill(wrb, busaddr, skb_frag_size(frag));
 684                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 685                 queue_head_inc(txq);
 686                 copied += skb_frag_size(frag);
 687         }
 688
 689         if (dummy_wrb) {
 690                 wrb = queue_head_node(txq);
 691                 wrb_fill(wrb, 0, 0);
 692                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 693                 queue_head_inc(txq);
 694         }
 695
 696         wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
 697         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 698
 699         return copied;
 700 dma_err:
 701         txq->head = map_head;
 702         while (copied) {
 703                 wrb = queue_head_node(txq);
 704                 unmap_tx_frag(dev, wrb, map_single);
 705                 map_single = false;
 706                 copied -= wrb->frag_len;
 707                 queue_head_inc(txq);
 708         }
 709         return 0;
 710 }
 711
 712 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
 713                                              struct sk_buff *skb)
 714 {
 715         u16 vlan_tag = 0;
 716
 717         skb = skb_share_check(skb, GFP_ATOMIC);
 718         if (unlikely(!skb))
 719                 return skb;
 720
 721         if (vlan_tx_tag_present(skb)) {
 722                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 723                 __vlan_put_tag(skb, vlan_tag);
 724                 skb->vlan_tci = 0;
 725         }
 726
 727         return skb;
 728 }
 729
 730 static netdev_tx_t be_xmit(struct sk_buff *skb,
 731                         struct net_device *netdev)
 732 {
 733         struct be_adapter *adapter = netdev_priv(netdev);
 734         struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
 735         struct be_queue_info *txq = &txo->q;
 736         struct iphdr *ip = NULL;
 737         u32 wrb_cnt = 0, copied = 0;
 738         u32 start = txq->head, eth_hdr_len;
 739         bool dummy_wrb, stopped = false;
 740
 741         eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
 742                 VLAN_ETH_HLEN : ETH_HLEN;
 743
 744         /* HW has a bug which considers padding bytes as legal
 745          * and modifies the IPv4 hdr's 'tot_len' field
 746          */
 747         if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
 748                         is_ipv4_pkt(skb)) {
 749                 ip = (struct iphdr *)ip_hdr(skb);
 750                 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
 751         }
 752
 753         /* HW has a bug wherein it will calculate CSUM for VLAN
 754          * pkts even though it is disabled.
 755          * Manually insert VLAN in pkt.
 756          */
 757         if (skb->ip_summed != CHECKSUM_PARTIAL &&
 758                         be_vlan_tag_chk(adapter, skb)) {
 759                 skb = be_insert_vlan_in_pkt(adapter, skb);
 760                 if (unlikely(!skb))
 761                         goto tx_drop;
 762         }
 763
 764         wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
 765
 766         copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
 767         if (copied) {
 768                 int gso_segs = skb_shinfo(skb)->gso_segs;
 769
 770                 /* record the sent skb in the sent_skb table */
 771                 BUG_ON(txo->sent_skb_list[start]);
 772                 txo->sent_skb_list[start] = skb;
 773
 774                 /* Ensure txq has space for the next skb; Else stop the queue
 775                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 776                  * tx compls of the current transmit which'll wake up the queue
 777                  */
 778                 atomic_add(wrb_cnt, &txq->used);
 779                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 780                                                                 txq->len) {
 781                         netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
 782                         stopped = true;
 783                 }
 784
 785                 be_txq_notify(adapter, txq->id, wrb_cnt);
 786
 787                 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
 788         } else {
 789                 txq->head = start;
 790                 dev_kfree_skb_any(skb);
 791         }
 792 tx_drop:
 793         return NETDEV_TX_OK;
 794 }
 795
 796 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 797 {
 798         struct be_adapter *adapter = netdev_priv(netdev);
 799         if (new_mtu < BE_MIN_MTU ||
 800                         new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
 801                                         (ETH_HLEN + ETH_FCS_LEN))) {
 802                 dev_info(&adapter->pdev->dev,
 803                         "MTU must be between %d and %d bytes\n",
 804                         BE_MIN_MTU,
 805                         (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
 806                 return -EINVAL;
 807         }
 808         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 809                         netdev->mtu, new_mtu);
 810         netdev->mtu = new_mtu;
 811         return 0;
 812 }
 813
 814 /*
 815  * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
 816  * If the user configures more, place BE in vlan promiscuous mode.
 817  */
 818 static int be_vid_config(struct be_adapter *adapter)
 819 {
 820         u16 vids[BE_NUM_VLANS_SUPPORTED];
 821         u16 num = 0, i;
 822         int status = 0;
 823
 824         /* No need to further configure vids if in promiscuous mode */
 825         if (adapter->promiscuous)
 826                 return 0;
 827
 828         if (adapter->vlans_added > adapter->max_vlans)
 829                 goto set_vlan_promisc;
 830
 831         /* Construct VLAN Table to give to HW */
 832         for (i = 0; i < VLAN_N_VID; i++)
 833                 if (adapter->vlan_tag[i])
 834                         vids[num++] = cpu_to_le16(i);
 835
 836         status = be_cmd_vlan_config(adapter, adapter->if_handle,
 837                                     vids, num, 1, 0);
 838
 839         /* Set to VLAN promisc mode as setting VLAN filter failed */
 840         if (status) {
 841                 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
 842                 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
 843                 goto set_vlan_promisc;
 844         }
 845
 846         return status;
 847
 848 set_vlan_promisc:
 849         status = be_cmd_vlan_config(adapter, adapter->if_handle,
 850                                     NULL, 0, 1, 1);
 851         return status;
 852 }
 853
 854 static int be_vlan_add_vid(struct net_device *netdev, u16 vid)
 855 {
 856         struct be_adapter *adapter = netdev_priv(netdev);
 857         int status = 0;
 858
 859         if (!be_physfn(adapter)) {
 860                 status = -EINVAL;
 861                 goto ret;
 862         }
 863
 864         adapter->vlan_tag[vid] = 1;
 865         if (adapter->vlans_added <= (adapter->max_vlans + 1))
 866                 status = be_vid_config(adapter);
 867
 868         if (!status)
 869                 adapter->vlans_added++;
 870         else
 871                 adapter->vlan_tag[vid] = 0;
 872 ret:
 873         return status;
 874 }
 875
 876 static int be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 877 {
 878         struct be_adapter *adapter = netdev_priv(netdev);
 879         int status = 0;
 880
 881         if (!be_physfn(adapter)) {
 882                 status = -EINVAL;
 883                 goto ret;
 884         }
 885
 886         adapter->vlan_tag[vid] = 0;
 887         if (adapter->vlans_added <= adapter->max_vlans)
 888                 status = be_vid_config(adapter);
 889
 890         if (!status)
 891                 adapter->vlans_added--;
 892         else
 893                 adapter->vlan_tag[vid] = 1;
 894 ret:
 895         return status;
 896 }
 897
 898 static void be_set_rx_mode(struct net_device *netdev)
 899 {
 900         struct be_adapter *adapter = netdev_priv(netdev);
 901         int status;
 902
 903         if (netdev->flags & IFF_PROMISC) {
 904                 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
 905                 adapter->promiscuous = true;
 906                 goto done;
 907         }
 908
 909         /* BE was previously in promiscuous mode; disable it */
 910         if (adapter->promiscuous) {
 911                 adapter->promiscuous = false;
 912                 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
 913
 914                 if (adapter->vlans_added)
 915                         be_vid_config(adapter);
 916         }
 917
 918         /* Enable multicast promisc if num configured exceeds what we support */
 919         if (netdev->flags & IFF_ALLMULTI ||
 920                         netdev_mc_count(netdev) > BE_MAX_MC) {
 921                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
 922                 goto done;
 923         }
 924
 925         if (netdev_uc_count(netdev) != adapter->uc_macs) {
 926                 struct netdev_hw_addr *ha;
 927                 int i = 1; /* First slot is claimed by the Primary MAC */
 928
 929                 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
 930                         be_cmd_pmac_del(adapter, adapter->if_handle,
 931                                         adapter->pmac_id[i], 0);
 932                 }
 933
 934                 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
 935                         be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
 936                         adapter->promiscuous = true;
 937                         goto done;
 938                 }
 939
 940                 netdev_for_each_uc_addr(ha, adapter->netdev) {
 941                         adapter->uc_macs++; /* First slot is for Primary MAC */
 942                         be_cmd_pmac_add(adapter, (u8 *)ha->addr,
 943                                         adapter->if_handle,
 944                                         &adapter->pmac_id[adapter->uc_macs], 0);
 945                 }
 946         }
 947
 948         status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
 949
 950         /* Set to MCAST promisc mode if setting MULTICAST address fails */
 951         if (status) {
 952                 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
 953                 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
 954                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
 955         }
 956 done:
 957         return;
 958 }
 959
 960 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
 961 {
 962         struct be_adapter *adapter = netdev_priv(netdev);
 963         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
 964         int status;
 965
 966         if (!sriov_enabled(adapter))
 967                 return -EPERM;
 968
 969         if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
 970                 return -EINVAL;
 971
 972         if (lancer_chip(adapter)) {
 973                 status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
 974         } else {
 975                 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
 976                                          vf_cfg->pmac_id, vf + 1);
 977
 978                 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
 979                                          &vf_cfg->pmac_id, vf + 1);
 980         }
 981
 982         if (status)
 983                 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
 984                                 mac, vf);
 985         else
 986                 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
 987
 988         return status;
 989 }
 990
 991 static int be_get_vf_config(struct net_device *netdev, int vf,
 992                         struct ifla_vf_info *vi)
 993 {
 994         struct be_adapter *adapter = netdev_priv(netdev);
 995         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
 996
 997         if (!sriov_enabled(adapter))
 998                 return -EPERM;
 999
1000         if (vf >= adapter->num_vfs)
1001                 return -EINVAL;
1002
1003         vi->vf = vf;
1004         vi->tx_rate = vf_cfg->tx_rate;
1005         vi->vlan = vf_cfg->vlan_tag;
1006         vi->qos = 0;
1007         memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1008
1009         return 0;
1010 }
1011
1012 static int be_set_vf_vlan(struct net_device *netdev,
1013                         int vf, u16 vlan, u8 qos)
1014 {
1015         struct be_adapter *adapter = netdev_priv(netdev);
1016         int status = 0;
1017
1018         if (!sriov_enabled(adapter))
1019                 return -EPERM;
1020
1021         if (vf >= adapter->num_vfs || vlan > 4095)
1022                 return -EINVAL;
1023
1024         if (vlan) {
1025                 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1026                         /* If this is new value, program it. Else skip. */
1027                         adapter->vf_cfg[vf].vlan_tag = vlan;
1028
1029                         status = be_cmd_set_hsw_config(adapter, vlan,
1030                                 vf + 1, adapter->vf_cfg[vf].if_handle);
1031                 }
1032         } else {
1033                 /* Reset Transparent Vlan Tagging. */
1034                 adapter->vf_cfg[vf].vlan_tag = 0;
1035                 vlan = adapter->vf_cfg[vf].def_vid;
1036                 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1037                         adapter->vf_cfg[vf].if_handle);
1038         }
1039
1040
1041         if (status)
1042                 dev_info(&adapter->pdev->dev,
1043                                 "VLAN %d config on VF %d failed\n", vlan, vf);
1044         return status;
1045 }
1046
1047 static int be_set_vf_tx_rate(struct net_device *netdev,
1048                         int vf, int rate)
1049 {
1050         struct be_adapter *adapter = netdev_priv(netdev);
1051         int status = 0;
1052
1053         if (!sriov_enabled(adapter))
1054                 return -EPERM;
1055
1056         if (vf >= adapter->num_vfs)
1057                 return -EINVAL;
1058
1059         if (rate < 100 || rate > 10000) {
1060                 dev_err(&adapter->pdev->dev,
1061                         "tx rate must be between 100 and 10000 Mbps\n");
1062                 return -EINVAL;
1063         }
1064
1065         status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1066
1067         if (status)
1068                 dev_err(&adapter->pdev->dev,
1069                                 "tx rate %d on VF %d failed\n", rate, vf);
1070         else
1071                 adapter->vf_cfg[vf].tx_rate = rate;
1072         return status;
1073 }
1074
1075 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1076 {
1077         struct pci_dev *dev, *pdev = adapter->pdev;
1078         int vfs = 0, assigned_vfs = 0, pos, vf_fn;
1079         u16 offset, stride;
1080
1081         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1082         if (!pos)
1083                 return 0;
1084         pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1085         pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1086
1087         dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1088         while (dev) {
1089                 vf_fn = (pdev->devfn + offset + stride * vfs) & 0xFFFF;
1090                 if (dev->is_virtfn && dev->devfn == vf_fn &&
1091                         dev->bus->number == pdev->bus->number) {
1092                         vfs++;
1093                         if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1094                                 assigned_vfs++;
1095                 }
1096                 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1097         }
1098         return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1099 }
1100
1101 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1102 {
1103         struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1104         ulong now = jiffies;
1105         ulong delta = now - stats->rx_jiffies;
1106         u64 pkts;
1107         unsigned int start, eqd;
1108
1109         if (!eqo->enable_aic) {
1110                 eqd = eqo->eqd;
1111                 goto modify_eqd;
1112         }
1113
1114         if (eqo->idx >= adapter->num_rx_qs)
1115                 return;
1116
1117         stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1118
1119         /* Wrapped around */
1120         if (time_before(now, stats->rx_jiffies)) {
1121                 stats->rx_jiffies = now;
1122                 return;
1123         }
1124
1125         /* Update once a second */
1126         if (delta < HZ)
1127                 return;
1128
1129         do {
1130                 start = u64_stats_fetch_begin_bh(&stats->sync);
1131                 pkts = stats->rx_pkts;
1132         } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1133
1134         stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1135         stats->rx_pkts_prev = pkts;
1136         stats->rx_jiffies = now;
1137         eqd = (stats->rx_pps / 110000) << 3;
1138         eqd = min(eqd, eqo->max_eqd);
1139         eqd = max(eqd, eqo->min_eqd);
1140         if (eqd < 10)
1141                 eqd = 0;
1142
1143 modify_eqd:
1144         if (eqd != eqo->cur_eqd) {
1145                 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1146                 eqo->cur_eqd = eqd;
1147         }
1148 }
1149
1150 static void be_rx_stats_update(struct be_rx_obj *rxo,
1151                 struct be_rx_compl_info *rxcp)
1152 {
1153         struct be_rx_stats *stats = rx_stats(rxo);
1154
1155         u64_stats_update_begin(&stats->sync);
1156         stats->rx_compl++;
1157         stats->rx_bytes += rxcp->pkt_size;
1158         stats->rx_pkts++;
1159         if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1160                 stats->rx_mcast_pkts++;
1161         if (rxcp->err)
1162                 stats->rx_compl_err++;
1163         u64_stats_update_end(&stats->sync);
1164 }
1165
1166 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1167 {
1168         /* L4 checksum is not reliable for non TCP/UDP packets.
1169          * Also ignore ipcksm for ipv6 pkts */
1170         return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1171                                 (rxcp->ip_csum || rxcp->ipv6);
1172 }
1173
1174 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1175                                                 u16 frag_idx)
1176 {
1177         struct be_adapter *adapter = rxo->adapter;
1178         struct be_rx_page_info *rx_page_info;
1179         struct be_queue_info *rxq = &rxo->q;
1180
1181         rx_page_info = &rxo->page_info_tbl[frag_idx];
1182         BUG_ON(!rx_page_info->page);
1183
1184         if (rx_page_info->last_page_user) {
1185                 dma_unmap_page(&adapter->pdev->dev,
1186                                dma_unmap_addr(rx_page_info, bus),
1187                                adapter->big_page_size, DMA_FROM_DEVICE);
1188                 rx_page_info->last_page_user = false;
1189         }
1190
1191         atomic_dec(&rxq->used);
1192         return rx_page_info;
1193 }
1194
1195 /* Throwaway the data in the Rx completion */
1196 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1197                                 struct be_rx_compl_info *rxcp)
1198 {
1199         struct be_queue_info *rxq = &rxo->q;
1200         struct be_rx_page_info *page_info;
1201         u16 i, num_rcvd = rxcp->num_rcvd;
1202
1203         for (i = 0; i < num_rcvd; i++) {
1204                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1205                 put_page(page_info->page);
1206                 memset(page_info, 0, sizeof(*page_info));
1207                 index_inc(&rxcp->rxq_idx, rxq->len);
1208         }
1209 }
1210
1211 /*
1212  * skb_fill_rx_data forms a complete skb for an ether frame
1213  * indicated by rxcp.
1214  */
1215 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1216                              struct be_rx_compl_info *rxcp)
1217 {
1218         struct be_queue_info *rxq = &rxo->q;
1219         struct be_rx_page_info *page_info;
1220         u16 i, j;
1221         u16 hdr_len, curr_frag_len, remaining;
1222         u8 *start;
1223
1224         page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1225         start = page_address(page_info->page) + page_info->page_offset;
1226         prefetch(start);
1227
1228         /* Copy data in the first descriptor of this completion */
1229         curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1230
1231         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              !be_is_mc(adapter)) {
2181                 num = (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2182                 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2183         }
2184         return num;
2185 }
2186
2187 static void be_msix_enable(struct be_adapter *adapter)
2188 {
2189 #define BE_MIN_MSIX_VECTORS             1
2190         int i, status, num_vec, num_roce_vec = 0;
2191
2192         /* If RSS queues are not used, need a vec for default RX Q */
2193         num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2194         if (be_roce_supported(adapter)) {
2195                 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2196                                         (num_online_cpus() + 1));
2197                 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2198                 num_vec += num_roce_vec;
2199                 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2200         }
2201         num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2202
2203         for (i = 0; i < num_vec; i++)
2204                 adapter->msix_entries[i].entry = i;
2205
2206         status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2207         if (status == 0) {
2208                 goto done;
2209         } else if (status >= BE_MIN_MSIX_VECTORS) {
2210                 num_vec = status;
2211                 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2212                                 num_vec) == 0)
2213                         goto done;
2214         }
2215         return;
2216 done:
2217         if (be_roce_supported(adapter)) {
2218                 if (num_vec > num_roce_vec) {
2219                         adapter->num_msix_vec = num_vec - num_roce_vec;
2220                         adapter->num_msix_roce_vec =
2221                                 num_vec - adapter->num_msix_vec;
2222                 } else {
2223                         adapter->num_msix_vec = num_vec;
2224                         adapter->num_msix_roce_vec = 0;
2225                 }
2226         } else
2227                 adapter->num_msix_vec = num_vec;
2228         return;
2229 }
2230
2231 static inline int be_msix_vec_get(struct be_adapter *adapter,
2232                                 struct be_eq_obj *eqo)
2233 {
2234         return adapter->msix_entries[eqo->idx].vector;
2235 }
2236
2237 static int be_msix_register(struct be_adapter *adapter)
2238 {
2239         struct net_device *netdev = adapter->netdev;
2240         struct be_eq_obj *eqo;
2241         int status, i, vec;
2242
2243         for_all_evt_queues(adapter, eqo, i) {
2244                 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2245                 vec = be_msix_vec_get(adapter, eqo);
2246                 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2247                 if (status)
2248                         goto err_msix;
2249         }
2250
2251         return 0;
2252 err_msix:
2253         for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2254                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2255         dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2256                 status);
2257         be_msix_disable(adapter);
2258         return status;
2259 }
2260
2261 static int be_irq_register(struct be_adapter *adapter)
2262 {
2263         struct net_device *netdev = adapter->netdev;
2264         int status;
2265
2266         if (msix_enabled(adapter)) {
2267                 status = be_msix_register(adapter);
2268                 if (status == 0)
2269                         goto done;
2270                 /* INTx is not supported for VF */
2271                 if (!be_physfn(adapter))
2272                         return status;
2273         }
2274
2275         /* INTx */
2276         netdev->irq = adapter->pdev->irq;
2277         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2278                         adapter);
2279         if (status) {
2280                 dev_err(&adapter->pdev->dev,
2281                         "INTx request IRQ failed - err %d\n", status);
2282                 return status;
2283         }
2284 done:
2285         adapter->isr_registered = true;
2286         return 0;
2287 }
2288
2289 static void be_irq_unregister(struct be_adapter *adapter)
2290 {
2291         struct net_device *netdev = adapter->netdev;
2292         struct be_eq_obj *eqo;
2293         int i;
2294
2295         if (!adapter->isr_registered)
2296                 return;
2297
2298         /* INTx */
2299         if (!msix_enabled(adapter)) {
2300                 free_irq(netdev->irq, adapter);
2301                 goto done;
2302         }
2303
2304         /* MSIx */
2305         for_all_evt_queues(adapter, eqo, i)
2306                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2307
2308 done:
2309         adapter->isr_registered = false;
2310 }
2311
2312 static void be_rx_qs_destroy(struct be_adapter *adapter)
2313 {
2314         struct be_queue_info *q;
2315         struct be_rx_obj *rxo;
2316         int i;
2317
2318         for_all_rx_queues(adapter, rxo, i) {
2319                 q = &rxo->q;
2320                 if (q->created) {
2321                         be_cmd_rxq_destroy(adapter, q);
2322                         /* After the rxq is invalidated, wait for a grace time
2323                          * of 1ms for all dma to end and the flush compl to
2324                          * arrive
2325                          */
2326                         mdelay(1);
2327                         be_rx_cq_clean(rxo);
2328                 }
2329                 be_queue_free(adapter, q);
2330         }
2331 }
2332
2333 static int be_close(struct net_device *netdev)
2334 {
2335         struct be_adapter *adapter = netdev_priv(netdev);
2336         struct be_eq_obj *eqo;
2337         int i;
2338
2339         be_roce_dev_close(adapter);
2340
2341         be_async_mcc_disable(adapter);
2342
2343         if (!lancer_chip(adapter))
2344                 be_intr_set(adapter, false);
2345
2346         for_all_evt_queues(adapter, eqo, i) {
2347                 napi_disable(&eqo->napi);
2348                 if (msix_enabled(adapter))
2349                         synchronize_irq(be_msix_vec_get(adapter, eqo));
2350                 else
2351                         synchronize_irq(netdev->irq);
2352                 be_eq_clean(eqo);
2353         }
2354
2355         be_irq_unregister(adapter);
2356
2357         /* Wait for all pending tx completions to arrive so that
2358          * all tx skbs are freed.
2359          */
2360         be_tx_compl_clean(adapter);
2361
2362         be_rx_qs_destroy(adapter);
2363         return 0;
2364 }
2365
2366 static int be_rx_qs_create(struct be_adapter *adapter)
2367 {
2368         struct be_rx_obj *rxo;
2369         int rc, i, j;
2370         u8 rsstable[128];
2371
2372         for_all_rx_queues(adapter, rxo, i) {
2373                 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2374                                     sizeof(struct be_eth_rx_d));
2375                 if (rc)
2376                         return rc;
2377         }
2378
2379         /* The FW would like the default RXQ to be created first */
2380         rxo = default_rxo(adapter);
2381         rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2382                                adapter->if_handle, false, &rxo->rss_id);
2383         if (rc)
2384                 return rc;
2385
2386         for_all_rss_queues(adapter, rxo, i) {
2387                 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2388                                        rx_frag_size, adapter->if_handle,
2389                                        true, &rxo->rss_id);
2390                 if (rc)
2391                         return rc;
2392         }
2393
2394         if (be_multi_rxq(adapter)) {
2395                 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2396                         for_all_rss_queues(adapter, rxo, i) {
2397                                 if ((j + i) >= 128)
2398                                         break;
2399                                 rsstable[j + i] = rxo->rss_id;
2400                         }
2401                 }
2402                 rc = be_cmd_rss_config(adapter, rsstable, 128);
2403                 if (rc)
2404                         return rc;
2405         }
2406
2407         /* First time posting */
2408         for_all_rx_queues(adapter, rxo, i)
2409                 be_post_rx_frags(rxo, GFP_KERNEL);
2410         return 0;
2411 }
2412
2413 static int be_open(struct net_device *netdev)
2414 {
2415         struct be_adapter *adapter = netdev_priv(netdev);
2416         struct be_eq_obj *eqo;
2417         struct be_rx_obj *rxo;
2418         struct be_tx_obj *txo;
2419         u8 link_status;
2420         int status, i;
2421
2422         status = be_rx_qs_create(adapter);
2423         if (status)
2424                 goto err;
2425
2426         be_irq_register(adapter);
2427
2428         if (!lancer_chip(adapter))
2429                 be_intr_set(adapter, true);
2430
2431         for_all_rx_queues(adapter, rxo, i)
2432                 be_cq_notify(adapter, rxo->cq.id, true, 0);
2433
2434         for_all_tx_queues(adapter, txo, i)
2435                 be_cq_notify(adapter, txo->cq.id, true, 0);
2436
2437         be_async_mcc_enable(adapter);
2438
2439         for_all_evt_queues(adapter, eqo, i) {
2440                 napi_enable(&eqo->napi);
2441                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2442         }
2443
2444         status = be_cmd_link_status_query(adapter, NULL, NULL,
2445                                           &link_status, 0);
2446         if (!status)
2447                 be_link_status_update(adapter, link_status);
2448
2449         be_roce_dev_open(adapter);
2450         return 0;
2451 err:
2452         be_close(adapter->netdev);
2453         return -EIO;
2454 }
2455
2456 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2457 {
2458         struct be_dma_mem cmd;
2459         int status = 0;
2460         u8 mac[ETH_ALEN];
2461
2462         memset(mac, 0, ETH_ALEN);
2463
2464         cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2465         cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2466                                     GFP_KERNEL);
2467         if (cmd.va == NULL)
2468                 return -1;
2469         memset(cmd.va, 0, cmd.size);
2470
2471         if (enable) {
2472                 status = pci_write_config_dword(adapter->pdev,
2473                         PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2474                 if (status) {
2475                         dev_err(&adapter->pdev->dev,
2476                                 "Could not enable Wake-on-lan\n");
2477                         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2478                                           cmd.dma);
2479                         return status;
2480                 }
2481                 status = be_cmd_enable_magic_wol(adapter,
2482                                 adapter->netdev->dev_addr, &cmd);
2483                 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2484                 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2485         } else {
2486                 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2487                 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2488                 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2489         }
2490
2491         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2492         return status;
2493 }
2494
2495 /*
2496  * Generate a seed MAC address from the PF MAC Address using jhash.
2497  * MAC Address for VFs are assigned incrementally starting from the seed.
2498  * These addresses are programmed in the ASIC by the PF and the VF driver
2499  * queries for the MAC address during its probe.
2500  */
2501 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2502 {
2503         u32 vf;
2504         int status = 0;
2505         u8 mac[ETH_ALEN];
2506         struct be_vf_cfg *vf_cfg;
2507
2508         be_vf_eth_addr_generate(adapter, mac);
2509
2510         for_all_vfs(adapter, vf_cfg, vf) {
2511                 if (lancer_chip(adapter)) {
2512                         status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
2513                 } else {
2514                         status = be_cmd_pmac_add(adapter, mac,
2515                                                  vf_cfg->if_handle,
2516                                                  &vf_cfg->pmac_id, vf + 1);
2517                 }
2518
2519                 if (status)
2520                         dev_err(&adapter->pdev->dev,
2521                         "Mac address assignment failed for VF %d\n", vf);
2522                 else
2523                         memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2524
2525                 mac[5] += 1;
2526         }
2527         return status;
2528 }
2529
2530 static void be_vf_clear(struct be_adapter *adapter)
2531 {
2532         struct be_vf_cfg *vf_cfg;
2533         u32 vf;
2534
2535         if (be_find_vfs(adapter, ASSIGNED)) {
2536                 dev_warn(&adapter->pdev->dev, "VFs are assigned to VMs\n");
2537                 goto done;
2538         }
2539
2540         for_all_vfs(adapter, vf_cfg, vf) {
2541                 if (lancer_chip(adapter))
2542                         be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2543                 else
2544                         be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2545                                         vf_cfg->pmac_id, vf + 1);
2546
2547                 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2548         }
2549         pci_disable_sriov(adapter->pdev);
2550 done:
2551         kfree(adapter->vf_cfg);
2552         adapter->num_vfs = 0;
2553 }
2554
2555 static int be_clear(struct be_adapter *adapter)
2556 {
2557         int i = 1;
2558
2559         if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2560                 cancel_delayed_work_sync(&adapter->work);
2561                 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2562         }
2563
2564         if (sriov_enabled(adapter))
2565                 be_vf_clear(adapter);
2566
2567         for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2568                 be_cmd_pmac_del(adapter, adapter->if_handle,
2569                         adapter->pmac_id[i], 0);
2570
2571         be_cmd_if_destroy(adapter, adapter->if_handle,  0);
2572
2573         be_mcc_queues_destroy(adapter);
2574         be_rx_cqs_destroy(adapter);
2575         be_tx_queues_destroy(adapter);
2576         be_evt_queues_destroy(adapter);
2577
2578         be_msix_disable(adapter);
2579         return 0;
2580 }
2581
2582 static int be_vf_setup_init(struct be_adapter *adapter)
2583 {
2584         struct be_vf_cfg *vf_cfg;
2585         int vf;
2586
2587         adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2588                                   GFP_KERNEL);
2589         if (!adapter->vf_cfg)
2590                 return -ENOMEM;
2591
2592         for_all_vfs(adapter, vf_cfg, vf) {
2593                 vf_cfg->if_handle = -1;
2594                 vf_cfg->pmac_id = -1;
2595         }
2596         return 0;
2597 }
2598
2599 static int be_vf_setup(struct be_adapter *adapter)
2600 {
2601         struct be_vf_cfg *vf_cfg;
2602         struct device *dev = &adapter->pdev->dev;
2603         u32 cap_flags, en_flags, vf;
2604         u16 def_vlan, lnk_speed;
2605         int status, enabled_vfs;
2606
2607         enabled_vfs = be_find_vfs(adapter, ENABLED);
2608         if (enabled_vfs) {
2609                 dev_warn(dev, "%d VFs are already enabled\n", enabled_vfs);
2610                 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2611                 return 0;
2612         }
2613
2614         if (num_vfs > adapter->dev_num_vfs) {
2615                 dev_warn(dev, "Device supports %d VFs and not %d\n",
2616                          adapter->dev_num_vfs, num_vfs);
2617                 num_vfs = adapter->dev_num_vfs;
2618         }
2619
2620         status = pci_enable_sriov(adapter->pdev, num_vfs);
2621         if (!status) {
2622                 adapter->num_vfs = num_vfs;
2623         } else {
2624                 /* Platform doesn't support SRIOV though device supports it */
2625                 dev_warn(dev, "SRIOV enable failed\n");
2626                 return 0;
2627         }
2628
2629         status = be_vf_setup_init(adapter);
2630         if (status)
2631                 goto err;
2632
2633         cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2634                                 BE_IF_FLAGS_MULTICAST;
2635         for_all_vfs(adapter, vf_cfg, vf) {
2636                 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2637                                           &vf_cfg->if_handle, vf + 1);
2638                 if (status)
2639                         goto err;
2640         }
2641
2642         if (!enabled_vfs) {
2643                 status = be_vf_eth_addr_config(adapter);
2644                 if (status)
2645                         goto err;
2646         }
2647
2648         for_all_vfs(adapter, vf_cfg, vf) {
2649                 status = be_cmd_link_status_query(adapter, NULL, &lnk_speed,
2650                                                   NULL, vf + 1);
2651                 if (status)
2652                         goto err;
2653                 vf_cfg->tx_rate = lnk_speed * 10;
2654
2655                 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2656                                 vf + 1, vf_cfg->if_handle);
2657                 if (status)
2658                         goto err;
2659                 vf_cfg->def_vid = def_vlan;
2660         }
2661         return 0;
2662 err:
2663         return status;
2664 }
2665
2666 static void be_setup_init(struct be_adapter *adapter)
2667 {
2668         adapter->vlan_prio_bmap = 0xff;
2669         adapter->phy.link_speed = -1;
2670         adapter->if_handle = -1;
2671         adapter->be3_native = false;
2672         adapter->promiscuous = false;
2673         adapter->eq_next_idx = 0;
2674         adapter->phy.forced_port_speed = -1;
2675 }
2676
2677 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2678                            bool *active_mac, u32 *pmac_id)
2679 {
2680         int status = 0;
2681
2682         if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2683                 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2684                 if (!lancer_chip(adapter) && !be_physfn(adapter))
2685                         *active_mac = true;
2686                 else
2687                         *active_mac = false;
2688
2689                 return status;
2690         }
2691
2692         if (lancer_chip(adapter)) {
2693                 status = be_cmd_get_mac_from_list(adapter, mac,
2694                                                   active_mac, pmac_id, 0);
2695                 if (*active_mac) {
2696                         status = be_cmd_mac_addr_query(adapter, mac,
2697                                                        MAC_ADDRESS_TYPE_NETWORK,
2698                                                        false, if_handle,
2699                                                        *pmac_id);
2700                 }
2701         } else if (be_physfn(adapter)) {
2702                 /* For BE3, for PF get permanent MAC */
2703                 status = be_cmd_mac_addr_query(adapter, mac,
2704                                                MAC_ADDRESS_TYPE_NETWORK, true,
2705                                                0, 0);
2706                 *active_mac = false;
2707         } else {
2708                 /* For BE3, for VF get soft MAC assigned by PF*/
2709                 status = be_cmd_mac_addr_query(adapter, mac,
2710                                                MAC_ADDRESS_TYPE_NETWORK, false,
2711                                                if_handle, 0);
2712                 *active_mac = true;
2713         }
2714         return status;
2715 }
2716
2717 /* Routine to query per function resource limits */
2718 static int be_get_config(struct be_adapter *adapter)
2719 {
2720         int pos;
2721         u16 dev_num_vfs;
2722
2723         pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2724         if (pos) {
2725                 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2726                                      &dev_num_vfs);
2727                 adapter->dev_num_vfs = dev_num_vfs;
2728         }
2729         return 0;
2730 }
2731
2732 static int be_setup(struct be_adapter *adapter)
2733 {
2734         struct device *dev = &adapter->pdev->dev;
2735         u32 cap_flags, en_flags;
2736         u32 tx_fc, rx_fc;
2737         int status;
2738         u8 mac[ETH_ALEN];
2739         bool active_mac;
2740
2741         be_setup_init(adapter);
2742
2743         be_get_config(adapter);
2744
2745         be_cmd_req_native_mode(adapter);
2746
2747         be_msix_enable(adapter);
2748
2749         status = be_evt_queues_create(adapter);
2750         if (status)
2751                 goto err;
2752
2753         status = be_tx_cqs_create(adapter);
2754         if (status)
2755                 goto err;
2756
2757         status = be_rx_cqs_create(adapter);
2758         if (status)
2759                 goto err;
2760
2761         status = be_mcc_queues_create(adapter);
2762         if (status)
2763                 goto err;
2764
2765         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2766                         BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
2767         cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
2768                         BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
2769
2770         if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2771                 cap_flags |= BE_IF_FLAGS_RSS;
2772                 en_flags |= BE_IF_FLAGS_RSS;
2773         }
2774
2775         if (lancer_chip(adapter) && !be_physfn(adapter)) {
2776                 en_flags = BE_IF_FLAGS_UNTAGGED |
2777                             BE_IF_FLAGS_BROADCAST |
2778                             BE_IF_FLAGS_MULTICAST;
2779                 cap_flags = en_flags;
2780         }
2781
2782         status = be_cmd_if_create(adapter, cap_flags, en_flags,
2783                                   &adapter->if_handle, 0);
2784         if (status != 0)
2785                 goto err;
2786
2787         memset(mac, 0, ETH_ALEN);
2788         active_mac = false;
2789         status = be_get_mac_addr(adapter, mac, adapter->if_handle,
2790                                  &active_mac, &adapter->pmac_id[0]);
2791         if (status != 0)
2792                 goto err;
2793
2794         if (!active_mac) {
2795                 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
2796                                          &adapter->pmac_id[0], 0);
2797                 if (status != 0)
2798                         goto err;
2799         }
2800
2801         if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
2802                 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2803                 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2804         }
2805
2806         status = be_tx_qs_create(adapter);
2807         if (status)
2808                 goto err;
2809
2810         be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
2811
2812         if (adapter->vlans_added)
2813                 be_vid_config(adapter);
2814
2815         be_set_rx_mode(adapter->netdev);
2816
2817         be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
2818
2819         if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
2820                 be_cmd_set_flow_control(adapter, adapter->tx_fc,
2821                                         adapter->rx_fc);
2822
2823         if (be_physfn(adapter) && num_vfs) {
2824                 if (adapter->dev_num_vfs)
2825                         be_vf_setup(adapter);
2826                 else
2827                         dev_warn(dev, "device doesn't support SRIOV\n");
2828         }
2829
2830         be_cmd_get_phy_info(adapter);
2831         if (be_pause_supported(adapter))
2832                 adapter->phy.fc_autoneg = 1;
2833
2834         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2835         adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
2836         return 0;
2837 err:
2838         be_clear(adapter);
2839         return status;
2840 }
2841
2842 #ifdef CONFIG_NET_POLL_CONTROLLER
2843 static void be_netpoll(struct net_device *netdev)
2844 {
2845         struct be_adapter *adapter = netdev_priv(netdev);
2846         struct be_eq_obj *eqo;
2847         int i;
2848
2849         for_all_evt_queues(adapter, eqo, i)
2850                 event_handle(eqo);
2851
2852         return;
2853 }
2854 #endif
2855
2856 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
2857 char flash_cookie[2][16] =      {"*** SE FLAS", "H DIRECTORY *** "};
2858
2859 static bool be_flash_redboot(struct be_adapter *adapter,
2860                         const u8 *p, u32 img_start, int image_size,
2861                         int hdr_size)
2862 {
2863         u32 crc_offset;
2864         u8 flashed_crc[4];
2865         int status;
2866
2867         crc_offset = hdr_size + img_start + image_size - 4;
2868
2869         p += crc_offset;
2870
2871         status = be_cmd_get_flash_crc(adapter, flashed_crc,
2872                         (image_size - 4));
2873         if (status) {
2874                 dev_err(&adapter->pdev->dev,
2875                 "could not get crc from flash, not flashing redboot\n");
2876                 return false;
2877         }
2878
2879         /*update redboot only if crc does not match*/
2880         if (!memcmp(flashed_crc, p, 4))
2881                 return false;
2882         else
2883                 return true;
2884 }
2885
2886 static bool phy_flashing_required(struct be_adapter *adapter)
2887 {
2888         return (adapter->phy.phy_type == TN_8022 &&
2889                 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
2890 }
2891
2892 static bool is_comp_in_ufi(struct be_adapter *adapter,
2893                            struct flash_section_info *fsec, int type)
2894 {
2895         int i = 0, img_type = 0;
2896         struct flash_section_info_g2 *fsec_g2 = NULL;
2897
2898         if (adapter->generation != BE_GEN3)
2899                 fsec_g2 = (struct flash_section_info_g2 *)fsec;
2900
2901         for (i = 0; i < MAX_FLASH_COMP; i++) {
2902                 if (fsec_g2)
2903                         img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
2904                 else
2905                         img_type = le32_to_cpu(fsec->fsec_entry[i].type);
2906
2907                 if (img_type == type)
2908                         return true;
2909         }
2910         return false;
2911
2912 }
2913
2914 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
2915                                          int header_size,
2916                                          const struct firmware *fw)
2917 {
2918         struct flash_section_info *fsec = NULL;
2919         const u8 *p = fw->data;
2920
2921         p += header_size;
2922         while (p < (fw->data + fw->size)) {
2923                 fsec = (struct flash_section_info *)p;
2924                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
2925                         return fsec;
2926                 p += 32;
2927         }
2928         return NULL;
2929 }
2930
2931 static int be_flash_data(struct be_adapter *adapter,
2932                          const struct firmware *fw,
2933                          struct be_dma_mem *flash_cmd,
2934                          int num_of_images)
2935
2936 {
2937         int status = 0, i, filehdr_size = 0;
2938         int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
2939         u32 total_bytes = 0, flash_op;
2940         int num_bytes;
2941         const u8 *p = fw->data;
2942         struct be_cmd_write_flashrom *req = flash_cmd->va;
2943         const struct flash_comp *pflashcomp;
2944         int num_comp, hdr_size;
2945         struct flash_section_info *fsec = NULL;
2946
2947         struct flash_comp gen3_flash_types[] = {
2948                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
2949                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
2950                 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
2951                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
2952                 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
2953                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
2954                 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
2955                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
2956                 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
2957                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
2958                 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
2959                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
2960                 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
2961                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
2962                 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
2963                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
2964                 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
2965                         FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
2966                 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
2967                         FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
2968         };
2969
2970         struct flash_comp gen2_flash_types[] = {
2971                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
2972                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
2973                 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
2974                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
2975                 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
2976                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
2977                 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
2978                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
2979                 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
2980                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
2981                 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
2982                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
2983                 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
2984                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
2985                 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
2986                          FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
2987         };
2988
2989         if (adapter->generation == BE_GEN3) {
2990                 pflashcomp = gen3_flash_types;
2991                 filehdr_size = sizeof(struct flash_file_hdr_g3);
2992                 num_comp = ARRAY_SIZE(gen3_flash_types);
2993         } else {
2994                 pflashcomp = gen2_flash_types;
2995                 filehdr_size = sizeof(struct flash_file_hdr_g2);
2996                 num_comp = ARRAY_SIZE(gen2_flash_types);
2997         }
2998         /* Get flash section info*/
2999         fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3000         if (!fsec) {
3001                 dev_err(&adapter->pdev->dev,
3002                         "Invalid Cookie. UFI corrupted ?\n");
3003                 return -1;
3004         }
3005         for (i = 0; i < num_comp; i++) {
3006                 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3007                         continue;
3008
3009                 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3010                     memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3011                         continue;
3012
3013                 if (pflashcomp[i].optype == OPTYPE_PHY_FW) {
3014                         if (!phy_flashing_required(adapter))
3015                                 continue;
3016                 }
3017
3018                 hdr_size = filehdr_size +
3019                            (num_of_images * sizeof(struct image_hdr));
3020
3021                 if ((pflashcomp[i].optype == OPTYPE_REDBOOT) &&
3022                     (!be_flash_redboot(adapter, fw->data, pflashcomp[i].offset,
3023                                        pflashcomp[i].size, hdr_size)))
3024                         continue;
3025
3026                 /* Flash the component */
3027                 p = fw->data;
3028                 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3029                 if (p + pflashcomp[i].size > fw->data + fw->size)
3030                         return -1;
3031                 total_bytes = pflashcomp[i].size;
3032                 while (total_bytes) {
3033                         if (total_bytes > 32*1024)
3034                                 num_bytes = 32*1024;
3035                         else
3036                                 num_bytes = total_bytes;
3037                         total_bytes -= num_bytes;
3038                         if (!total_bytes) {
3039                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3040                                         flash_op = FLASHROM_OPER_PHY_FLASH;
3041                                 else
3042                                         flash_op = FLASHROM_OPER_FLASH;
3043                         } else {
3044                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3045                                         flash_op = FLASHROM_OPER_PHY_SAVE;
3046                                 else
3047                                         flash_op = FLASHROM_OPER_SAVE;
3048                         }
3049                         memcpy(req->params.data_buf, p, num_bytes);
3050                         p += num_bytes;
3051                         status = be_cmd_write_flashrom(adapter, flash_cmd,
3052                                 pflashcomp[i].optype, flash_op, num_bytes);
3053                         if (status) {
3054                                 if ((status == ILLEGAL_IOCTL_REQ) &&
3055                                         (pflashcomp[i].optype ==
3056                                                 OPTYPE_PHY_FW))
3057                                         break;
3058                                 dev_err(&adapter->pdev->dev,
3059                                         "cmd to write to flash rom failed.\n");
3060                                 return -1;
3061                         }
3062                 }
3063         }
3064         return 0;
3065 }
3066
3067 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
3068 {
3069         if (fhdr == NULL)
3070                 return 0;
3071         if (fhdr->build[0] == '3')
3072                 return BE_GEN3;
3073         else if (fhdr->build[0] == '2')
3074                 return BE_GEN2;
3075         else
3076                 return 0;
3077 }
3078
3079 static int lancer_wait_idle(struct be_adapter *adapter)
3080 {
3081 #define SLIPORT_IDLE_TIMEOUT 30
3082         u32 reg_val;
3083         int status = 0, i;
3084
3085         for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3086                 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3087                 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3088                         break;
3089
3090                 ssleep(1);
3091         }
3092
3093         if (i == SLIPORT_IDLE_TIMEOUT)
3094                 status = -1;
3095
3096         return status;
3097 }
3098
3099 static int lancer_fw_reset(struct be_adapter *adapter)
3100 {
3101         int status = 0;
3102
3103         status = lancer_wait_idle(adapter);
3104         if (status)
3105                 return status;
3106
3107         iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3108                   PHYSDEV_CONTROL_OFFSET);
3109
3110         return status;
3111 }
3112
3113 static int lancer_fw_download(struct be_adapter *adapter,
3114                                 const struct firmware *fw)
3115 {
3116 #define LANCER_FW_DOWNLOAD_CHUNK      (32 * 1024)
3117 #define LANCER_FW_DOWNLOAD_LOCATION   "/prg"
3118         struct be_dma_mem flash_cmd;
3119         const u8 *data_ptr = NULL;
3120         u8 *dest_image_ptr = NULL;
3121         size_t image_size = 0;
3122         u32 chunk_size = 0;
3123         u32 data_written = 0;
3124         u32 offset = 0;
3125         int status = 0;
3126         u8 add_status = 0;
3127         u8 change_status;
3128
3129         if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3130                 dev_err(&adapter->pdev->dev,
3131                         "FW Image not properly aligned. "
3132                         "Length must be 4 byte aligned.\n");
3133                 status = -EINVAL;
3134                 goto lancer_fw_exit;
3135         }
3136
3137         flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3138                                 + LANCER_FW_DOWNLOAD_CHUNK;
3139         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3140                                                 &flash_cmd.dma, GFP_KERNEL);
3141         if (!flash_cmd.va) {
3142                 status = -ENOMEM;
3143                 dev_err(&adapter->pdev->dev,
3144                         "Memory allocation failure while flashing\n");
3145                 goto lancer_fw_exit;
3146         }
3147
3148         dest_image_ptr = flash_cmd.va +
3149                                 sizeof(struct lancer_cmd_req_write_object);
3150         image_size = fw->size;
3151         data_ptr = fw->data;
3152
3153         while (image_size) {
3154                 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3155
3156                 /* Copy the image chunk content. */
3157                 memcpy(dest_image_ptr, data_ptr, chunk_size);
3158
3159                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3160                                                  chunk_size, offset,
3161                                                  LANCER_FW_DOWNLOAD_LOCATION,
3162                                                  &data_written, &change_status,
3163                                                  &add_status);
3164                 if (status)
3165                         break;
3166
3167                 offset += data_written;
3168                 data_ptr += data_written;
3169                 image_size -= data_written;
3170         }
3171
3172         if (!status) {
3173                 /* Commit the FW written */
3174                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3175                                                  0, offset,
3176                                                  LANCER_FW_DOWNLOAD_LOCATION,
3177                                                  &data_written, &change_status,
3178                                                  &add_status);
3179         }
3180
3181         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3182                                 flash_cmd.dma);
3183         if (status) {
3184                 dev_err(&adapter->pdev->dev,
3185                         "Firmware load error. "
3186                         "Status code: 0x%x Additional Status: 0x%x\n",
3187                         status, add_status);
3188                 goto lancer_fw_exit;
3189         }
3190
3191         if (change_status == LANCER_FW_RESET_NEEDED) {
3192                 status = lancer_fw_reset(adapter);
3193                 if (status) {
3194                         dev_err(&adapter->pdev->dev,
3195                                 "Adapter busy for FW reset.\n"
3196                                 "New FW will not be active.\n");
3197                         goto lancer_fw_exit;
3198                 }
3199         } else if (change_status != LANCER_NO_RESET_NEEDED) {
3200                         dev_err(&adapter->pdev->dev,
3201                                 "System reboot required for new FW"
3202                                 " to be active\n");
3203         }
3204
3205         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3206 lancer_fw_exit:
3207         return status;
3208 }
3209
3210 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3211 {
3212         struct flash_file_hdr_g2 *fhdr;
3213         struct flash_file_hdr_g3 *fhdr3;
3214         struct image_hdr *img_hdr_ptr = NULL;
3215         struct be_dma_mem flash_cmd;
3216         const u8 *p;
3217         int status = 0, i = 0, num_imgs = 0;
3218
3219         p = fw->data;
3220         fhdr = (struct flash_file_hdr_g2 *) p;
3221
3222         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
3223         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3224                                           &flash_cmd.dma, GFP_KERNEL);
3225         if (!flash_cmd.va) {
3226                 status = -ENOMEM;
3227                 dev_err(&adapter->pdev->dev,
3228                         "Memory allocation failure while flashing\n");
3229                 goto be_fw_exit;
3230         }
3231
3232         if ((adapter->generation == BE_GEN3) &&
3233                         (get_ufigen_type(fhdr) == BE_GEN3)) {
3234                 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
3235                 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3236                 for (i = 0; i < num_imgs; i++) {
3237                         img_hdr_ptr = (struct image_hdr *) (fw->data +
3238                                         (sizeof(struct flash_file_hdr_g3) +
3239                                          i * sizeof(struct image_hdr)));
3240                         if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
3241                                 status = be_flash_data(adapter, fw, &flash_cmd,
3242                                                         num_imgs);
3243                 }
3244         } else if ((adapter->generation == BE_GEN2) &&
3245                         (get_ufigen_type(fhdr) == BE_GEN2)) {
3246                 status = be_flash_data(adapter, fw, &flash_cmd, 0);
3247         } else {
3248                 dev_err(&adapter->pdev->dev,
3249                         "UFI and Interface are not compatible for flashing\n");
3250                 status = -1;
3251         }
3252
3253         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3254                           flash_cmd.dma);
3255         if (status) {
3256                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3257                 goto be_fw_exit;
3258         }
3259
3260         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3261
3262 be_fw_exit:
3263         return status;
3264 }
3265
3266 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3267 {
3268         const struct firmware *fw;
3269         int status;
3270
3271         if (!netif_running(adapter->netdev)) {
3272                 dev_err(&adapter->pdev->dev,
3273                         "Firmware load not allowed (interface is down)\n");
3274                 return -1;
3275         }
3276
3277         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3278         if (status)
3279                 goto fw_exit;
3280
3281         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3282
3283         if (lancer_chip(adapter))
3284                 status = lancer_fw_download(adapter, fw);
3285         else
3286                 status = be_fw_download(adapter, fw);
3287
3288 fw_exit:
3289         release_firmware(fw);
3290         return status;
3291 }
3292
3293 static const struct net_device_ops be_netdev_ops = {
3294         .ndo_open               = be_open,
3295         .ndo_stop               = be_close,
3296         .ndo_start_xmit         = be_xmit,
3297         .ndo_set_rx_mode        = be_set_rx_mode,
3298         .ndo_set_mac_address    = be_mac_addr_set,
3299         .ndo_change_mtu         = be_change_mtu,
3300         .ndo_get_stats64        = be_get_stats64,
3301         .ndo_validate_addr      = eth_validate_addr,
3302         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
3303         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
3304         .ndo_set_vf_mac         = be_set_vf_mac,
3305         .ndo_set_vf_vlan        = be_set_vf_vlan,
3306         .ndo_set_vf_tx_rate     = be_set_vf_tx_rate,
3307         .ndo_get_vf_config      = be_get_vf_config,
3308 #ifdef CONFIG_NET_POLL_CONTROLLER
3309         .ndo_poll_controller    = be_netpoll,
3310 #endif
3311 };
3312
3313 static void be_netdev_init(struct net_device *netdev)
3314 {
3315         struct be_adapter *adapter = netdev_priv(netdev);
3316         struct be_eq_obj *eqo;
3317         int i;
3318
3319         netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3320                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3321                 NETIF_F_HW_VLAN_TX;
3322         if (be_multi_rxq(adapter))
3323                 netdev->hw_features |= NETIF_F_RXHASH;
3324
3325         netdev->features |= netdev->hw_features |
3326                 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3327
3328         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3329                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3330
3331         netdev->priv_flags |= IFF_UNICAST_FLT;
3332
3333         netdev->flags |= IFF_MULTICAST;
3334
3335         netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3336
3337         netdev->netdev_ops = &be_netdev_ops;
3338
3339         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3340
3341         for_all_evt_queues(adapter, eqo, i)
3342                 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3343 }
3344
3345 static void be_unmap_pci_bars(struct be_adapter *adapter)
3346 {
3347         if (adapter->csr)
3348                 iounmap(adapter->csr);
3349         if (adapter->db)
3350                 iounmap(adapter->db);
3351         if (adapter->roce_db.base)
3352                 pci_iounmap(adapter->pdev, adapter->roce_db.base);
3353 }
3354
3355 static int lancer_roce_map_pci_bars(struct be_adapter *adapter)
3356 {
3357         struct pci_dev *pdev = adapter->pdev;
3358         u8 __iomem *addr;
3359
3360         addr = pci_iomap(pdev, 2, 0);
3361         if (addr == NULL)
3362                 return -ENOMEM;
3363
3364         adapter->roce_db.base = addr;
3365         adapter->roce_db.io_addr = pci_resource_start(pdev, 2);
3366         adapter->roce_db.size = 8192;
3367         adapter->roce_db.total_size = pci_resource_len(pdev, 2);
3368         return 0;
3369 }
3370
3371 static int be_map_pci_bars(struct be_adapter *adapter)
3372 {
3373         u8 __iomem *addr;
3374         int db_reg;
3375
3376         if (lancer_chip(adapter)) {
3377                 if (be_type_2_3(adapter)) {
3378                         addr = ioremap_nocache(
3379                                         pci_resource_start(adapter->pdev, 0),
3380                                         pci_resource_len(adapter->pdev, 0));
3381                         if (addr == NULL)
3382                                 return -ENOMEM;
3383                         adapter->db = addr;
3384                 }
3385                 if (adapter->if_type == SLI_INTF_TYPE_3) {
3386                         if (lancer_roce_map_pci_bars(adapter))
3387                                 goto pci_map_err;
3388                 }
3389                 return 0;
3390         }
3391
3392         if (be_physfn(adapter)) {
3393                 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3394                                 pci_resource_len(adapter->pdev, 2));
3395                 if (addr == NULL)
3396                         return -ENOMEM;
3397                 adapter->csr = addr;
3398         }
3399
3400         if (adapter->generation == BE_GEN2) {
3401                 db_reg = 4;
3402         } else {
3403                 if (be_physfn(adapter))
3404                         db_reg = 4;
3405                 else
3406                         db_reg = 0;
3407         }
3408         addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3409                                 pci_resource_len(adapter->pdev, db_reg));
3410         if (addr == NULL)
3411                 goto pci_map_err;
3412         adapter->db = addr;
3413         if (adapter->sli_family == SKYHAWK_SLI_FAMILY) {
3414                 adapter->roce_db.size = 4096;
3415                 adapter->roce_db.io_addr =
3416                                 pci_resource_start(adapter->pdev, db_reg);
3417                 adapter->roce_db.total_size =
3418                                 pci_resource_len(adapter->pdev, db_reg);
3419         }
3420         return 0;
3421 pci_map_err:
3422         be_unmap_pci_bars(adapter);
3423         return -ENOMEM;
3424 }
3425
3426 static void be_ctrl_cleanup(struct be_adapter *adapter)
3427 {
3428         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3429
3430         be_unmap_pci_bars(adapter);
3431
3432         if (mem->va)
3433                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3434                                   mem->dma);
3435
3436         mem = &adapter->rx_filter;
3437         if (mem->va)
3438                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3439                                   mem->dma);
3440 }
3441
3442 static int be_ctrl_init(struct be_adapter *adapter)
3443 {
3444         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3445         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3446         struct be_dma_mem *rx_filter = &adapter->rx_filter;
3447         int status;
3448
3449         status = be_map_pci_bars(adapter);
3450         if (status)
3451                 goto done;
3452
3453         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3454         mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3455                                                 mbox_mem_alloc->size,
3456                                                 &mbox_mem_alloc->dma,
3457                                                 GFP_KERNEL);
3458         if (!mbox_mem_alloc->va) {
3459                 status = -ENOMEM;
3460                 goto unmap_pci_bars;
3461         }
3462         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3463         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3464         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3465         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3466
3467         rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3468         rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3469                                         &rx_filter->dma, GFP_KERNEL);
3470         if (rx_filter->va == NULL) {
3471                 status = -ENOMEM;
3472                 goto free_mbox;
3473         }
3474         memset(rx_filter->va, 0, rx_filter->size);
3475
3476         mutex_init(&adapter->mbox_lock);
3477         spin_lock_init(&adapter->mcc_lock);
3478         spin_lock_init(&adapter->mcc_cq_lock);
3479
3480         init_completion(&adapter->flash_compl);
3481         pci_save_state(adapter->pdev);
3482         return 0;
3483
3484 free_mbox:
3485         dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3486                           mbox_mem_alloc->va, mbox_mem_alloc->dma);
3487
3488 unmap_pci_bars:
3489         be_unmap_pci_bars(adapter);
3490
3491 done:
3492         return status;
3493 }
3494
3495 static void be_stats_cleanup(struct be_adapter *adapter)
3496 {
3497         struct be_dma_mem *cmd = &adapter->stats_cmd;
3498
3499         if (cmd->va)
3500                 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3501                                   cmd->va, cmd->dma);
3502 }
3503
3504 static int be_stats_init(struct be_adapter *adapter)
3505 {
3506         struct be_dma_mem *cmd = &adapter->stats_cmd;
3507
3508         if (adapter->generation == BE_GEN2) {
3509                 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3510         } else {
3511                 if (lancer_chip(adapter))
3512                         cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3513                 else
3514                         cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3515         }
3516         cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3517                                      GFP_KERNEL);
3518         if (cmd->va == NULL)
3519                 return -1;
3520         memset(cmd->va, 0, cmd->size);
3521         return 0;
3522 }
3523
3524 static void __devexit be_remove(struct pci_dev *pdev)
3525 {
3526         struct be_adapter *adapter = pci_get_drvdata(pdev);
3527
3528         if (!adapter)
3529                 return;
3530
3531         be_roce_dev_remove(adapter);
3532
3533         cancel_delayed_work_sync(&adapter->func_recovery_work);
3534
3535         unregister_netdev(adapter->netdev);
3536
3537         be_clear(adapter);
3538
3539         /* tell fw we're done with firing cmds */
3540         be_cmd_fw_clean(adapter);
3541
3542         be_stats_cleanup(adapter);
3543
3544         be_ctrl_cleanup(adapter);
3545
3546         pci_set_drvdata(pdev, NULL);
3547         pci_release_regions(pdev);
3548         pci_disable_device(pdev);
3549
3550         free_netdev(adapter->netdev);
3551 }
3552
3553 bool be_is_wol_supported(struct be_adapter *adapter)
3554 {
3555         return ((adapter->wol_cap & BE_WOL_CAP) &&
3556                 !be_is_wol_excluded(adapter)) ? true : false;
3557 }
3558
3559 u32 be_get_fw_log_level(struct be_adapter *adapter)
3560 {
3561         struct be_dma_mem extfat_cmd;
3562         struct be_fat_conf_params *cfgs;
3563         int status;
3564         u32 level = 0;
3565         int j;
3566
3567         memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3568         extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3569         extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3570                                              &extfat_cmd.dma);
3571
3572         if (!extfat_cmd.va) {
3573                 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3574                         __func__);
3575                 goto err;
3576         }
3577
3578         status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3579         if (!status) {
3580                 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3581                                                 sizeof(struct be_cmd_resp_hdr));
3582                 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
3583                         if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3584                                 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3585                 }
3586         }
3587         pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3588                             extfat_cmd.dma);
3589 err:
3590         return level;
3591 }
3592 static int be_get_initial_config(struct be_adapter *adapter)
3593 {
3594         int status;
3595         u32 level;
3596
3597         status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3598                         &adapter->function_mode, &adapter->function_caps);
3599         if (status)
3600                 return status;
3601
3602         if (adapter->function_mode & FLEX10_MODE)
3603                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3604         else
3605                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3606
3607         if (be_physfn(adapter))
3608                 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3609         else
3610                 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3611
3612         /* primary mac needs 1 pmac entry */
3613         adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3614                                   sizeof(u32), GFP_KERNEL);
3615         if (!adapter->pmac_id)
3616                 return -ENOMEM;
3617
3618         status = be_cmd_get_cntl_attributes(adapter);
3619         if (status)
3620                 return status;
3621
3622         status = be_cmd_get_acpi_wol_cap(adapter);
3623         if (status) {
3624                 /* in case of a failure to get wol capabillities
3625                  * check the exclusion list to determine WOL capability */
3626                 if (!be_is_wol_excluded(adapter))
3627                         adapter->wol_cap |= BE_WOL_CAP;
3628         }
3629
3630         if (be_is_wol_supported(adapter))
3631                 adapter->wol = true;
3632
3633         /* Must be a power of 2 or else MODULO will BUG_ON */
3634         adapter->be_get_temp_freq = 64;
3635
3636         level = be_get_fw_log_level(adapter);
3637         adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3638
3639         return 0;
3640 }
3641
3642 static int be_dev_type_check(struct be_adapter *adapter)
3643 {
3644         struct pci_dev *pdev = adapter->pdev;
3645         u32 sli_intf = 0, if_type;
3646
3647         switch (pdev->device) {
3648         case BE_DEVICE_ID1:
3649         case OC_DEVICE_ID1:
3650                 adapter->generation = BE_GEN2;
3651                 break;
3652         case BE_DEVICE_ID2:
3653         case OC_DEVICE_ID2:
3654                 adapter->generation = BE_GEN3;
3655                 break;
3656         case OC_DEVICE_ID3:
3657         case OC_DEVICE_ID4:
3658                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3659                 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3660                                                 SLI_INTF_IF_TYPE_SHIFT;
3661                 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3662                                                 SLI_INTF_IF_TYPE_SHIFT;
3663                 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3664                         !be_type_2_3(adapter)) {
3665                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3666                         return -EINVAL;
3667                 }
3668                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3669                                          SLI_INTF_FAMILY_SHIFT);
3670                 adapter->generation = BE_GEN3;
3671                 break;
3672         case OC_DEVICE_ID5:
3673                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3674                 if ((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) {
3675                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3676                         return -EINVAL;
3677                 }
3678                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3679                                          SLI_INTF_FAMILY_SHIFT);
3680                 adapter->generation = BE_GEN3;
3681                 break;
3682         default:
3683                 adapter->generation = 0;
3684         }
3685
3686         pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3687         adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3688         return 0;
3689 }
3690
3691 static int lancer_recover_func(struct be_adapter *adapter)
3692 {
3693         int status;
3694
3695         status = lancer_test_and_set_rdy_state(adapter);
3696         if (status)
3697                 goto err;
3698
3699         if (netif_running(adapter->netdev))
3700                 be_close(adapter->netdev);
3701
3702         be_clear(adapter);
3703
3704         adapter->hw_error = false;
3705         adapter->fw_timeout = false;
3706
3707         status = be_setup(adapter);
3708         if (status)
3709                 goto err;
3710
3711         if (netif_running(adapter->netdev)) {
3712                 status = be_open(adapter->netdev);
3713                 if (status)
3714                         goto err;
3715         }
3716
3717         dev_err(&adapter->pdev->dev,
3718                 "Adapter SLIPORT recovery succeeded\n");
3719         return 0;
3720 err:
3721         dev_err(&adapter->pdev->dev,
3722                 "Adapter SLIPORT recovery failed\n");
3723
3724         return status;
3725 }
3726
3727 static void be_func_recovery_task(struct work_struct *work)
3728 {
3729         struct be_adapter *adapter =
3730                 container_of(work, struct be_adapter,  func_recovery_work.work);
3731         int status;
3732
3733         be_detect_error(adapter);
3734
3735         if (adapter->hw_error && lancer_chip(adapter)) {
3736
3737                 if (adapter->eeh_error)
3738                         goto out;
3739
3740                 rtnl_lock();
3741                 netif_device_detach(adapter->netdev);
3742                 rtnl_unlock();
3743
3744                 status = lancer_recover_func(adapter);
3745
3746                 if (!status)
3747                         netif_device_attach(adapter->netdev);
3748         }
3749
3750 out:
3751         schedule_delayed_work(&adapter->func_recovery_work,
3752                               msecs_to_jiffies(1000));
3753 }
3754
3755 static void be_worker(struct work_struct *work)
3756 {
3757         struct be_adapter *adapter =
3758                 container_of(work, struct be_adapter, work.work);
3759         struct be_rx_obj *rxo;
3760         struct be_eq_obj *eqo;
3761         int i;
3762
3763         /* when interrupts are not yet enabled, just reap any pending
3764         * mcc completions */
3765         if (!netif_running(adapter->netdev)) {
3766                 be_process_mcc(adapter);
3767                 goto reschedule;
3768         }
3769
3770         if (!adapter->stats_cmd_sent) {
3771                 if (lancer_chip(adapter))
3772                         lancer_cmd_get_pport_stats(adapter,
3773                                                 &adapter->stats_cmd);
3774                 else
3775                         be_cmd_get_stats(adapter, &adapter->stats_cmd);
3776         }
3777
3778         if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
3779                 be_cmd_get_die_temperature(adapter);
3780
3781         for_all_rx_queues(adapter, rxo, i) {
3782                 if (rxo->rx_post_starved) {
3783                         rxo->rx_post_starved = false;
3784                         be_post_rx_frags(rxo, GFP_KERNEL);
3785                 }
3786         }
3787
3788         for_all_evt_queues(adapter, eqo, i)
3789                 be_eqd_update(adapter, eqo);
3790
3791 reschedule:
3792         adapter->work_counter++;
3793         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3794 }
3795
3796 static bool be_reset_required(struct be_adapter *adapter)
3797 {
3798         return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
3799 }
3800
3801 static int __devinit be_probe(struct pci_dev *pdev,
3802                         const struct pci_device_id *pdev_id)
3803 {
3804         int status = 0;
3805         struct be_adapter *adapter;
3806         struct net_device *netdev;
3807         char port_name;
3808
3809         status = pci_enable_device(pdev);
3810         if (status)
3811                 goto do_none;
3812
3813         status = pci_request_regions(pdev, DRV_NAME);
3814         if (status)
3815                 goto disable_dev;
3816         pci_set_master(pdev);
3817
3818         netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
3819         if (netdev == NULL) {
3820                 status = -ENOMEM;
3821                 goto rel_reg;
3822         }
3823         adapter = netdev_priv(netdev);
3824         adapter->pdev = pdev;
3825         pci_set_drvdata(pdev, adapter);
3826
3827         status = be_dev_type_check(adapter);
3828         if (status)
3829                 goto free_netdev;
3830
3831         adapter->netdev = netdev;
3832         SET_NETDEV_DEV(netdev, &pdev->dev);
3833
3834         status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3835         if (!status) {
3836                 netdev->features |= NETIF_F_HIGHDMA;
3837         } else {
3838                 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3839                 if (status) {
3840                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3841                         goto free_netdev;
3842                 }
3843         }
3844
3845         status = be_ctrl_init(adapter);
3846         if (status)
3847                 goto free_netdev;
3848
3849         /* sync up with fw's ready state */
3850         if (be_physfn(adapter)) {
3851                 status = be_fw_wait_ready(adapter);
3852                 if (status)
3853                         goto ctrl_clean;
3854         }
3855
3856         /* tell fw we're ready to fire cmds */
3857         status = be_cmd_fw_init(adapter);
3858         if (status)
3859                 goto ctrl_clean;
3860
3861         if (be_reset_required(adapter)) {
3862                 status = be_cmd_reset_function(adapter);
3863                 if (status)
3864                         goto ctrl_clean;
3865         }
3866
3867         /* The INTR bit may be set in the card when probed by a kdump kernel
3868          * after a crash.
3869          */
3870         if (!lancer_chip(adapter))
3871                 be_intr_set(adapter, false);
3872
3873         status = be_stats_init(adapter);
3874         if (status)
3875                 goto ctrl_clean;
3876
3877         status = be_get_initial_config(adapter);
3878         if (status)
3879                 goto stats_clean;
3880
3881         INIT_DELAYED_WORK(&adapter->work, be_worker);
3882         INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
3883         adapter->rx_fc = adapter->tx_fc = true;
3884
3885         status = be_setup(adapter);
3886         if (status)
3887                 goto msix_disable;
3888
3889         be_netdev_init(netdev);
3890         status = register_netdev(netdev);
3891         if (status != 0)
3892                 goto unsetup;
3893
3894         be_roce_dev_add(adapter);
3895
3896         schedule_delayed_work(&adapter->func_recovery_work,
3897                               msecs_to_jiffies(1000));
3898
3899         be_cmd_query_port_name(adapter, &port_name);
3900
3901         dev_info(&pdev->dev, "%s: %s port %c\n", netdev->name, nic_name(pdev),
3902                  port_name);
3903
3904         return 0;
3905
3906 unsetup:
3907         be_clear(adapter);
3908 msix_disable:
3909         be_msix_disable(adapter);
3910 stats_clean:
3911         be_stats_cleanup(adapter);
3912 ctrl_clean:
3913         be_ctrl_cleanup(adapter);
3914 free_netdev:
3915         free_netdev(netdev);
3916         pci_set_drvdata(pdev, NULL);
3917 rel_reg:
3918         pci_release_regions(pdev);
3919 disable_dev:
3920         pci_disable_device(pdev);
3921 do_none:
3922         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3923         return status;
3924 }
3925
3926 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3927 {
3928         struct be_adapter *adapter = pci_get_drvdata(pdev);
3929         struct net_device *netdev =  adapter->netdev;
3930
3931         if (adapter->wol)
3932                 be_setup_wol(adapter, true);
3933
3934         cancel_delayed_work_sync(&adapter->func_recovery_work);
3935
3936         netif_device_detach(netdev);
3937         if (netif_running(netdev)) {
3938                 rtnl_lock();
3939                 be_close(netdev);
3940                 rtnl_unlock();
3941         }
3942         be_clear(adapter);
3943
3944         pci_save_state(pdev);
3945         pci_disable_device(pdev);
3946         pci_set_power_state(pdev, pci_choose_state(pdev, state));
3947         return 0;
3948 }
3949
3950 static int be_resume(struct pci_dev *pdev)
3951 {
3952         int status = 0;
3953         struct be_adapter *adapter = pci_get_drvdata(pdev);
3954         struct net_device *netdev =  adapter->netdev;
3955
3956         netif_device_detach(netdev);
3957
3958         status = pci_enable_device(pdev);
3959         if (status)
3960                 return status;
3961
3962         pci_set_power_state(pdev, 0);
3963         pci_restore_state(pdev);
3964
3965         /* tell fw we're ready to fire cmds */
3966         status = be_cmd_fw_init(adapter);
3967         if (status)
3968                 return status;
3969
3970         be_setup(adapter);
3971         if (netif_running(netdev)) {
3972                 rtnl_lock();
3973                 be_open(netdev);
3974                 rtnl_unlock();
3975         }
3976
3977         schedule_delayed_work(&adapter->func_recovery_work,
3978                               msecs_to_jiffies(1000));
3979         netif_device_attach(netdev);
3980
3981         if (adapter->wol)
3982                 be_setup_wol(adapter, false);
3983
3984         return 0;
3985 }
3986
3987 /*
3988  * An FLR will stop BE from DMAing any data.
3989  */
3990 static void be_shutdown(struct pci_dev *pdev)
3991 {
3992         struct be_adapter *adapter = pci_get_drvdata(pdev);
3993
3994         if (!adapter)
3995                 return;
3996
3997         cancel_delayed_work_sync(&adapter->work);
3998         cancel_delayed_work_sync(&adapter->func_recovery_work);
3999
4000         netif_device_detach(adapter->netdev);
4001
4002         if (adapter->wol)
4003                 be_setup_wol(adapter, true);
4004
4005         be_cmd_reset_function(adapter);
4006
4007         pci_disable_device(pdev);
4008 }
4009
4010 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4011                                 pci_channel_state_t state)
4012 {
4013         struct be_adapter *adapter = pci_get_drvdata(pdev);
4014         struct net_device *netdev =  adapter->netdev;
4015
4016         dev_err(&adapter->pdev->dev, "EEH error detected\n");
4017
4018         adapter->eeh_error = true;
4019
4020         cancel_delayed_work_sync(&adapter->func_recovery_work);
4021
4022         rtnl_lock();
4023         netif_device_detach(netdev);
4024         rtnl_unlock();
4025
4026         if (netif_running(netdev)) {
4027                 rtnl_lock();
4028                 be_close(netdev);
4029                 rtnl_unlock();
4030         }
4031         be_clear(adapter);
4032
4033         if (state == pci_channel_io_perm_failure)
4034                 return PCI_ERS_RESULT_DISCONNECT;
4035
4036         pci_disable_device(pdev);
4037
4038         /* The error could cause the FW to trigger a flash debug dump.
4039          * Resetting the card while flash dump is in progress
4040          * can cause it not to recover; wait for it to finish
4041          */
4042         ssleep(30);
4043         return PCI_ERS_RESULT_NEED_RESET;
4044 }
4045
4046 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4047 {
4048         struct be_adapter *adapter = pci_get_drvdata(pdev);
4049         int status;
4050
4051         dev_info(&adapter->pdev->dev, "EEH reset\n");
4052         be_clear_all_error(adapter);
4053
4054         status = pci_enable_device(pdev);
4055         if (status)
4056                 return PCI_ERS_RESULT_DISCONNECT;
4057
4058         pci_set_master(pdev);
4059         pci_set_power_state(pdev, 0);
4060         pci_restore_state(pdev);
4061
4062         /* Check if card is ok and fw is ready */
4063         status = be_fw_wait_ready(adapter);
4064         if (status)
4065                 return PCI_ERS_RESULT_DISCONNECT;
4066
4067         return PCI_ERS_RESULT_RECOVERED;
4068 }
4069
4070 static void be_eeh_resume(struct pci_dev *pdev)
4071 {
4072         int status = 0;
4073         struct be_adapter *adapter = pci_get_drvdata(pdev);
4074         struct net_device *netdev =  adapter->netdev;
4075
4076         dev_info(&adapter->pdev->dev, "EEH resume\n");
4077
4078         pci_save_state(pdev);
4079
4080         /* tell fw we're ready to fire cmds */
4081         status = be_cmd_fw_init(adapter);
4082         if (status)
4083                 goto err;
4084
4085         status = be_cmd_reset_function(adapter);
4086         if (status)
4087                 goto err;
4088
4089         status = be_setup(adapter);
4090         if (status)
4091                 goto err;
4092
4093         if (netif_running(netdev)) {
4094                 status = be_open(netdev);
4095                 if (status)
4096                         goto err;
4097         }
4098
4099         schedule_delayed_work(&adapter->func_recovery_work,
4100                               msecs_to_jiffies(1000));
4101         netif_device_attach(netdev);
4102         return;
4103 err:
4104         dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4105 }
4106
4107 static struct pci_error_handlers be_eeh_handlers = {
4108         .error_detected = be_eeh_err_detected,
4109         .slot_reset = be_eeh_reset,
4110         .resume = be_eeh_resume,
4111 };
4112
4113 static struct pci_driver be_driver = {
4114         .name = DRV_NAME,
4115         .id_table = be_dev_ids,
4116         .probe = be_probe,
4117         .remove = be_remove,
4118         .suspend = be_suspend,
4119         .resume = be_resume,
4120         .shutdown = be_shutdown,
4121         .err_handler = &be_eeh_handlers
4122 };
4123
4124 static int __init be_init_module(void)
4125 {
4126         if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4127             rx_frag_size != 2048) {
4128                 printk(KERN_WARNING DRV_NAME
4129                         " : Module param rx_frag_size must be 2048/4096/8192."
4130                         " Using 2048\n");
4131                 rx_frag_size = 2048;
4132         }
4133
4134         return pci_register_driver(&be_driver);
4135 }
4136 module_init(be_init_module);
4137
4138 static void __exit be_exit_module(void)
4139 {
4140         pci_unregister_driver(&be_driver);
4141 }
4142 module_exit(be_exit_module);